WO2016183858A1 - Fluid shunt device - Google Patents

Abstract

Disclosed is a fluid shunt device, which uses a branch pipeline control device to realize the control of a branch pipeline. A base (30) of the branch pipeline control device has a runner opening (31) in sealed communication with a main accommodation body, a first mounting hole (33) and a second mounting hole (32) which are in communication with the branch pipeline. A valve core assembly can be driven via a driving part (44) in a bonnet assembly (40) to open and close the runner opening. In such a structure, there is no need to process a parallel and level sealing face on the main accommodation body, which results in a simple processing procedure, and the branch pipeline control device does not need to process the main accommodation body (including a main pipe and a receptacle, etc.) into a columnar platform, which greatly lowers the requirements for the thickness of a cavity wall and the processing difficulties, and reduces costs, and at the same time, the branch pipeline control device is directly integrated with a control unit so that the on-off can be controlled without installing a further valve.

Description

Fluid splitting device Technical field

Field of the Invention This invention relates to the field of pipe joints, and more particularly to a device for connecting fluid from a main line or vessel to a branch line, and a fluid splitting device using such a connection.

Background technique

Liquid and gas transmission pipelines are widely used in petroleum, chemical, power generation, pharmaceutical and other industrial fields. In production applications, fluids in the main road or container often need to be connected to multiple branch lines to distribute fluids to meet industrial needs, to achieve sample testing, fluid performance testing, and heat dissipation. The gas source distributor is the most widely used in the industrial field. Chinese patent CN102788246A discloses a gas source distributor, which is a middle bridge connecting the centrally installed starter instrument and the gas main pipe, which can conveniently control each The continuity of the pipeline. The pipe body of the air source distributor is usually small in space, and the connection of the branch pipe is usually only installed on the outer side of the single side. The branch pipe joint of the air source distributor usually adopts the conventional structure shown in Fig. 1, and the structure needs to be in the main pipe. The body 100 is bored by a special drill bit, so that the main body 100 is plastically deformed under the friction and extrusion of the drill bit, and a columnar platform 101 is formed. The columnar platform 101 is milled and tapped to form a female thread 102, and the female thread 102 has a center. The male thread 202 of the joint 200 of the hole 201 is engaged, and the seal 500 that is looped over the joint 200 is pressed by the washer 400 and the nut 300 to form a seal of the thread engaging slit. The flattened radial plane of the cylindrical platform 101 is the sealing surface to facilitate sealing of the seal 500. In the conventional joint of Fig. 1, the female thread 102 also needs to have a sufficient length to ensure the joint strength with the joint 200, which requires the wall thickness T of the pipe body 100 to be large enough to form a columnar platform 101 of sufficient height to satisfy the processing for The radial plane of the seal and the strength of the joint are guaranteed. This size T requirement is generally much greater than the wall thickness requirement of the fluid pressure of the pipe body 100, which results in the pipe body 100 being cumbersome and therefore requiring improvement.

Summary of the invention

The application provides a novel fluid flow dividing device.

The fluid distribution device provided by the present application comprises:

a main body, the main body includes a receiving cavity;

And at least one branch line control device, the branch line control device is mounted on the main receiving body, The branch line control device includes:

a base, the base includes a base cavity, the base cavity is provided with a flow port for sealingly communicating with the receiving cavity, a first mounting hole for communicating with the branch line, and a second mounting hole;

a bonnet assembly including a bonnet having a central cavity, a spool assembly for controlling the opening and closing of the runner opening, and a drive member for driving movement of the spool assembly, the bonnet passing through the second mounting hole and the base a sealing joint; the valve core assembly includes a valve stem, the valve stem is disposed on the central cavity and extends out of the bonnet to be connected with the driving member, and is driven to open and close the flow passage opening under the driving of the driving member;

And a joint having a center hole, an inner joint for connecting to the first mounting hole, and an outer portion for external connection, the inner joint being sealingly connected to the first mounting hole.

As a further improvement of the fluid flow dividing device, the base is fixedly disposed in the main receiving body, the bonnet assembly and the joint are fixedly disposed outside the main receiving body, and the main receiving body is opened with the first mounting a first connecting hole corresponding to the hole and a second connecting hole corresponding to the second mounting hole; the inner connecting portion extends from the main receiving body into the first connecting hole and is sealingly coupled with the first mounting hole, or the base The first mounting hole protrudes from the first connecting hole and is sealingly connected with the inner connecting portion, so that the central hole communicates with the base cavity; the one end of the bonnet is fixed from the main receiving body through the second connecting hole and the second mounting hole, Or the second mounting hole extends out of the second connecting hole and is fixed to the bonnet.

As a further improvement of the fluid flow dividing device, the driving member is a handle, and the handle is connected to the valve rod through a pin, the handle is against the end of the bonnet away from the base, and the handle is used to resist the bonnet The outer edge has a first outer edge portion and a second outer edge portion, the distance from the first outer edge portion to the pin shaft being greater than the distance from the second outer edge portion to the pin shaft, the valve core assembly including a spring, the spring Between the inner wall of the central cavity and the valve stem, the elastic force drives the valve stem to move toward the flow passage opening; when the first outer edge portion of the handle abuts the bonnet, the valve stem opens the flow passage opening; when the handle When the upper outer edge portion is against the bonnet, the valve stem closes the flow passage opening.

As a further improvement of the fluid flow dividing device, the bonnet assembly further includes a lock bracket, the lock bracket is fixedly coupled to the bonnet, and the lock bracket has a blocking member for blocking rotation of the handle, the resistor member is located The handle is rotated in a path and is detachably mounted on the lock bracket.

As a further improvement of the fluid flow dividing device, the central cavity is a reduced diameter structure having a small diameter end and a large diameter end, and the valve stem extends through the small diameter end to extend the bonnet to the driving member .

As a further improvement of the fluid flow dividing device, the bonnet and the inner joint have external threads, and the inner joint portion has an external thread and is screwed to the first mounting hole through the first connecting hole, the bonnet The portion having the external thread is screwed to the second mounting hole through the second connecting hole, and the base and the bonnet and the joint are fixed against the main receiving body from both sides of the main receiving body.

As a further improvement of the fluid flow dividing device, a sealing ring and/or a sealant is provided at the intersection of the bonnet, the base and the main container for sealing.

As a further improvement of the fluid flow dividing device, a sealing ring and/or a coating sealant is provided at the intersection of the joint, the base and the main container for sealing.

As a further improvement of the fluid flow dividing device, the branch line control device further includes a backing plate having a first plate hole corresponding to the first connecting hole and a second plate hole corresponding to the second connecting hole The backing plate is pressed against the outer wall of the main container by the bonnet and the joint.

As a further improvement of the fluid flow dividing device, a side of the first orifice plate and the second plate hole facing the main accommodating outer wall is designed as a counterbore shape, and the counterbore is provided with a first outer seal ring and a second Outer seal.

As a further improvement of the fluid flow dividing device, one end of the valve stem near the flow passage opening is inlaid with a valve head for improving the sealing of the flow passage opening.

The beneficial effects of the application are:

The fluid branching device provided by the present application realizes the control of the branch pipeline by using the branch pipeline control device, wherein the base of the branch pipeline control device has a flow passage opening in sealing communication with the main receiving body for connecting with the branch pipeline The first mounting hole and the second mounting hole can drive the valve core assembly to open and close the flow passage opening by using a driving member in the bonnet assembly. In this structure, it is not necessary to process the flush sealing surface on the main receiving body. The processing technology is simple, and the branch line control device does not need to process the main body (including the main pipe and the container) into a columnar platform, which greatly reduces the wall thickness requirement and processing difficulty of the cavity, reduces the cost, and the branch line The control unit integrates the control unit directly and controls the on/off without the need to install a valve.

DRAWINGS

Figure 1 is a cross-sectional view of a prior art branch line joint;

Figure 2 is a perspective view of the fluid diverting device;

Figure 3 is a front view of the branch line control device;

Figure 4 is a cross-sectional view taken along line A-A of Figure 3;

Figure 5 is an exploded exploded view of Figure 4;

Figure 6 is a perspective view of the base;

Figure 7 is a structural view of Embodiment 2;

Figure 8 is a structural view of Embodiment 3;

Figure 9 is a structural view of Embodiment 4;

Fig. 10 is a configuration diagram of the fifth embodiment.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings. The present application can be implemented in many different forms and is not limited to the embodiments described in this embodiment. The following detailed description is provided to facilitate a more thorough understanding of the disclosure of the present disclosure, wherein the words indicating the orientations of the top, the bottom, the left, the right, and the like are only for the position of the illustrated structure in the corresponding drawings.

However, one skilled in the art may realize that a detailed description of one or more of the details may be omitted, or other methods, components or materials may be employed. In some instances, some implementations are not described or described in detail.

In addition, the technical features and technical solutions described herein may also be combined in any suitable manner in one or more embodiments.

The application provides a fluid flow dividing device comprising a main receiving body and at least one branch line control device mounted on the main receiving body.

The main container shown in this embodiment may be either a container or a main tube.

Wherein, the branch line control device comprises a base, a bonnet assembly and a joint.

The base includes a base cavity having a flow passage opening for sealing communication with the main receiving body, a first mounting hole for communicating with the branch line, and a second mounting hole. The pedestal may be disposed inside the main accommodating body or outside the main accommodating body. The base and the main body can be sealed by a sealing ring, a sealant or a welding method.

The bonnet assembly includes a bonnet having a central cavity, a spool assembly for controlling the opening and closing of the runner opening, and a drive member for driving movement of the spool assembly. The bonnet is sealingly coupled to the base through the second mounting hole.

The spool assembly includes a valve stem that is threaded through the central cavity and extends out of the bonnet to the drive member and that opens and closes the flow passage opening under the drive of the drive member.

As the driving member, it may be manually performed manually, or may be driven by a power mechanism such as a cylinder or a motor.

The joint has a center hole, an inner joint for connecting to the first mounting hole, and an outer joint for external connection, and the inner joint is sealingly connected to the first mounting hole.

In the structure shown in this embodiment, it is not necessary to process the flush sealing surface on the main accommodating body, the processing process is simple, and the branch line control device does not need to process the main accommodating body (including the main pipe and the container) into a columnar platform. This greatly reduces the wall thickness requirement and processing difficulty of the cavity, and reduces the cost. At the same time, the branch line control device directly integrates the control unit, and the on-off can be controlled without installing a valve.

Embodiment 1

The first embodiment provides a fluid flow dividing device.

Referring to Figures 2, 3, 4, and 5, the fluid diverting device includes a main pipe (which serves as a main container) for accommodating or receiving fluid, and six branch line control devices that pass through the main pipe and are installed on the main pipe (quantity Can be one or more).

The main pipe includes a pipe body 20 and a front end cover 29 and a rear end cover 28 welded to the pipe body 20. The pipe body 20 has a circular tubular shape with 12 circular holes on the surface, and the front end cover 29 is provided with a main passage interface 25, An auxiliary interface 26 is provided on the rear end cover 28.

The branch line control device includes a base 30, a bonnet assembly 40, a joint 50, and a gasket 70.

Referring to FIGS. 5 and 6, the base 30 is provided with a flow passage opening 31 and a support surface 37 substantially conforming to the inner wall shape of the tubular body 20. The support surface 37 is provided with a second mounting hole 32 for mounting the bonnet assembly 40, The first mounting hole 33 for mounting the joint 50, the first mounting hole 33 and the second mounting hole 32 penetrate through the base to form a base cavity 34, and the flow port 31 and the base cavity 34 penetrate.

Referring to Figures 4 and 5, the bonnet assembly 40 includes a bonnet 41, a spool assembly for controlling the opening and closing of the runner port 31, and a handle 44 (as the drive member of this example) for driving the spool assembly. The bonnet 41 has a central cavity, 412, which is a reduced diameter structure having a small diameter end and a large diameter end. The valve core assembly includes a valve stem 42, a valve head 421 embedded in the valve stem for improving the sealing performance of the valve stem (made of a material having good sealing property), an O-ring 422 for improving the sealing performance of the valve stem, and a valve The rod 42 provides a preloaded spring 423.

The valve stem 42, the O-ring 422, and the spring 423 are located in the central cavity 412 of the bonnet 41. The valve stem 42 extends through the small diameter end (ie, the bonnet hole 413) out of the bonnet 41, and passes through the pin 441 and the handle. 44 connections. The handle 44 is against the end of the bonnet 41 away from the base 30 (including directly against the bonnet 41 itself, and also includes a member that is fixedly coupled to the bonnet 41, such as abutting on the nut 45), and the handle 44 is used. The outer edge of the bonnet 41 has a first outer edge portion and a second outer edge portion, and the distance from the first outer edge portion to the pin shaft 441 is greater than the distance from the second outer edge portion to the pin shaft 441. When the first outer edge portion of the handle 44 abuts the bonnet 41, the valve stem 42 opens the flow passage opening 31; when the second outer edge portion of the handle 44 abuts against the bonnet 41, the valve stem 42 closes the flow passage opening 31.

In order to prevent the handle 44 from being mishandled, the bonnet 41 is provided with a lock bracket 46 through the nut 45, the lock bracket 46 is fixedly coupled with the bonnet 41, and the lock bracket 46 has a blocking member for blocking the rotation of the handle 44, the resist member is located at the handle The rotation path of 44 is detachably mounted on the lock bracket 46.

Specifically, the lock bracket 46 is provided with holes 462, 463 for restricting the movement of the handle by passing a lock, a lever member or other obstructing member at the holes 462, 463.

The connection and sealing of the bonnet 41 and the base 30 are such that one end 411 of the bonnet 41 passes through the second plate hole 71 on the backing plate 70, the second connecting hole 21 on the pipe body 20, and the base. The second mounting hole 32 of the 30 is connected, and the sealing of the pipe body 20, the base 30 and the bonnet 41 at the intersection of the two is realized by the second inner sealing ring 62. The second inner sealing ring 62 is located at the The second annular table 35 of the mounting hole 32 is mounted.

In order to further improve the sealing performance, referring to FIG. 4 and FIG. 5, the surface of the second orifice plate 71 facing the main receiving outer wall of the backing plate 70 is designed as a counterbore shape, and a second counterbore 73 is formed, and the second counterbore 73 is embedded. There is a second outer seal 81. By tightening the bonnet 41, the top surface 414 on the outer wall of the bonnet 41 acts on the backing plate 70, and the second inner sealing ring 62 and the second outer sealing ring 81 are compression-deformed to achieve a sealed connection.

Referring to Figures 4 and 5, the joint 51 is provided with a center hole 51, a pressing surface 53, a threaded joint 52 (as an inner joint shown in this example), a wrench bit 54 and a ferrule assembly 55 for external connection (as The external part shown in this example).

After the threaded joint 52 passes through the first plate hole 72 on the backing plate 70 and the first connecting hole 22 on the pipe body 20, it is connected with the first mounting hole 33 on the base 30, and is realized by the first inner sealing ring 61. The tube body 20, the base 30, and the joint 50 are sealed at the intersection of the three, and the first inner seal ring 61 is located on the first annular base 36 of the first mounting hole 33.

In order to further improve the sealing property, the side of the backing plate 72 facing the main receiving outer wall of the backing plate 70 is designed as The shape of the counterbore forms a first counterbore 74, and the first counterbore 74 is embedded with a first outer seal ring 82.

When the joint 50 is tightened by the wrench bit 54, the pressing surface 53 acts on the backing plate 70, and the first inner sealing ring 61 and the first outer sealing ring 82 are compression-deformed to achieve a sealed connection.

Figure 4 is a cross-sectional view taken along line AA of Figure 3, which shows the two branch line control devices of the fluid diverting device in different working states, and the handle can realize the circulation or closing of the joint in the branch line control device; The flow is turned on, the fluid can flow in the opposite direction of the arrow or arrow, and the right side is in the off state.

In the manufacturing process, six branch line control devices are usually first mounted on the pipe body 20, and the front end cover 29 and the rear end cover 28 are welded to the pipe body 20.

Of course, in the first embodiment, the inner connecting portion of the joint 50 is sealed from the main receiving body and the first connecting hole 22 is sealingly coupled with the first mounting hole 33. One end 411 of the bonnet 41 is received from the main portion. The second connecting hole 21 is fixed to the second mounting hole 32 outside the body. In other embodiments, the first mounting hole 33 of the base 30 may extend out of the first connecting hole 22 to be in sealing connection with the inner connecting portion, so that the central hole communicates with the base cavity; or the second mounting hole 32 extends. The outside of the second connecting hole 21 is fixed to the bonnet 41.

In addition, the cooperation of the bonnet 41, the joint 50 and the base 30 is the bonnet 41, the joint 50 is externally threaded, and the base 30 is internally threaded, and the bonnet 41 and the joint 50 can also be internally threaded. The base 30 is set to an external thread.

Embodiment 2

The second embodiment provides a fluid flow dividing device.

Referring to FIG. 7, the difference between the fluid shunting device of this embodiment and the first embodiment is:

The shape of the counterbore is not provided on the backing plate 70. Therefore, the first outer sealing ring 82 and the second outer sealing ring 81 shown in the first embodiment are omitted, and the sealing of each component can also be achieved. The backing plate 70 has a reinforcing pipe body and a tube. The effect of the body deformation does not have the auxiliary sealing effect of Embodiment 1.

The main body is a pipe body which is axially pierced at both ends, and does not have the front end cover 29 and the rear end cover 28 shown in Fig. 3 of the first embodiment.

In use, the fluid splitting device is installed by welding the ends of the tubular body to the pipe.

Embodiment 3

The third embodiment provides a fluid flow dividing device.

Please refer to FIG. 8 , the difference between the fluid shunting device provided in this embodiment and the first embodiment is:

The backing plate 70, the first outer sealing ring 82, and the second outer sealing ring 81 in the first embodiment are omitted, and the components can be completed when the sealing effect at the first inner sealing ring 61 and the second inner sealing ring 62 is sufficiently good. Sealed.

Embodiment 4

The fourth embodiment provides a fluid flow dividing device.

Please refer to FIG. 9 , the difference between the fluid shunting device provided in this embodiment and the first embodiment is:

According to experiments, the sealing connection can be achieved by optimizing the accuracy of the base 30, the bonnet 41 and the joint 50. Therefore, in the fourth embodiment, the backing plate 70, the first outer sealing ring 82, the second outer sealing ring 81, the first inner sealing ring 61, and the second inner sealing ring 62 in the first embodiment can be omitted.

Further, in order to strengthen the sealing, a sealant may be generally applied at the intersection of the bonnet, the pedestal and the main accommodating body for sealing; and a sealant is applied at the intersection of the joint, the pedestal and the main accommodating body for sealing.

Embodiment 5

Embodiment 5 provides a fluid flow dividing device.

Referring to FIG. 10, the difference between the fluid shunting device provided in this embodiment and the third embodiment is as follows:

The valve rod is driven in different manners. Specifically, the valve core assembly includes a valve stem 42' and an O-ring 422'. The bonnet 41 and the base 30 are shown between the bonnet 41' and the base 30 as shown in the third embodiment. The way the connection is sealed. The bonnet 41' has a female threaded bore communicating with the central cavity. The valve stem 42' is threaded into the internally threaded bore of the bonnet 41'. By rotating the handle 44', the position of the valve stem 42' is adjusted to control the flow passage opening 31. Closed.

Further, in this embodiment, the backing plate 70, the first outer sealing ring 82, and the second outer sealing ring 81 in the first embodiment can be omitted, and the structure is simplified.

In the present invention, the container may be of a plurality of specific structures, such as a bottle-like structure having only one main passage, or even only the tubular body of the second embodiment; the bonnet assembly has also referred to various structures of the existing valve. For example, a needle valve, a ball valve, etc., for example, the ball valve structure disclosed in US Pat. No. 8,186,371 B is applicable to the present invention, as long as it can be installed outside the pipe body to realize opening and closing of the passage between the base cavity and the inside of the pipe body; The pedestal can be processed in various ways, such as casting. The pedestal in the above embodiment adopts a one-piece structure, and a combined structure composed of a plurality of parts can be used.

The above is a further detailed description of the present invention in connection with the specific embodiments, and the specific embodiments of the present invention are not limited to the description. For those of ordinary skill in the art to which the present invention pertains In addition, several simple deductions or substitutions can be made without departing from the inventive concept.

technical problem

Problem solution

Advantageous effects of the invention

Claims (11)

A fluid flow dividing device, comprising: a main body, the main body includes a receiving cavity; And at least one branch line control device, the branch line control device is mounted on the main container, and the branch line control device comprises: a base, the base includes a base cavity, the base cavity is provided with a flow port for sealingly communicating with the receiving cavity, a first mounting hole for communicating with the branch line, and a second mounting hole; a bonnet assembly including a bonnet having a central cavity, a spool assembly for controlling the opening and closing of the runner opening, and a drive member for driving movement of the spool assembly, the bonnet passing through the second mounting hole and the base a sealing joint; the valve core assembly includes a valve stem, the valve stem is disposed on the central cavity and extends out of the bonnet to be connected with the driving member, and is driven to open and close the flow passage opening under the driving of the driving member; And a joint having a center hole, an inner joint for connecting to the first mounting hole, and an outer portion for external connection, the inner joint being sealingly connected to the first mounting hole. The fluid bypass device according to claim 1, wherein the base is fixedly disposed in the main receiving body, the bonnet assembly and the joint are fixedly disposed outside the main receiving body, and the main receiving body is opened. a first connecting hole corresponding to the first mounting hole and a second connecting hole corresponding to the second mounting hole; the inner connecting portion extends from the main receiving body into the first connecting hole and is sealingly coupled with the first mounting hole, or a first mounting hole of the base protrudes from the first connecting hole and is sealingly connected with the inner connecting portion, so that the central hole communicates with the base cavity; and one end of the bonnet passes through the second connecting hole from the main receiving body The two mounting holes are fixed, or the second mounting holes extend outside the second connecting holes and are fixed to the bonnet. The fluid diverting device according to claim 2, wherein the driving member is a handle, and the handle is coupled to the valve stem through a pin, the handle is opposite to an end of the bonnet away from the base, and the handle is used for The outer edge of the bonnet has a first outer edge portion and a second outer edge portion, the distance from the first outer edge portion to the pin shaft being greater than the distance from the second outer edge portion to the pin shaft The spool assembly includes a spring disposed between the inner wall of the central cavity and the valve stem, the spring force of the valve stem moving toward the flow passage opening; when the first outer edge of the handle is against the bonnet, The valve stem opens the flow passage opening; when the second outer edge portion of the handle abuts the bonnet, the valve stem closes the flow passage opening. The fluid diverting device of claim 3, wherein the bonnet assembly further comprises a lock bracket, the lock bracket being fixedly coupled to the bonnet, and the lock bracket having a blocking member for blocking rotation of the handle, The blocking member is located on the rotating path of the handle and is detachably mounted on the lock bracket. A fluid bypass device according to claim 1, wherein said central cavity is a reduced diameter structure having a small diameter end and a large diameter end, said valve stem extending through a small diameter end to extend the bonnet Connect to the drive unit. A fluid bypass device according to any one of claims 1 to 5, wherein said bonnet and the inner joint have external threads, and the inner portion has an externally threaded portion passing through the first connecting hole and the first mounting hole. Splicing, a portion of the bonnet having an external thread is screwed through the second connecting hole to the second mounting hole, and the base and the bonnet and the joint abut against the main receiving body from both sides of the main receiving body Achieve fixed. The fluid diverting device according to claim 6, wherein a sealing ring and/or a sealant is provided at the intersection of the bonnet, the base and the main accommodating body for sealing. A fluid bypass device according to claim 6, wherein a seal ring and/or a sealant is applied at the intersection of the joint, the base and the main container for sealing. A fluid branching device according to claim 6, wherein said branch line control device further comprises a backing plate, said backing plate having a first plate hole corresponding to said first connecting hole and corresponding to said second connecting hole a second plate hole, the pad is pressed by the bonnet and the joint on the outer wall of the main accommodating body, and the first plate and the second plate hole are facing the main accommodating outer wall and are designed as counterbore a shape in which the first outer seal ring and the second outer seal ring are disposed. A fluid bypass device according to claim 1, wherein said branch line control device further comprises a backing plate, said backing plate having a first plate hole corresponding to said first connecting hole And a second plate hole corresponding to the second connecting hole, the pad is pressed by the bonnet and the joint on the outer wall of the main receiving body. A fluid bypass device according to claim 1, wherein a valve head for improving the sealability of the flow passage opening is fitted to one end of the valve stem adjacent to the flow passage opening.

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