RU2338237C1 - Methanol distributor unit - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: methanol distributor unit incorporates six methanol distributor unit assemblies, four of which comprise six manifolds furnished with gate valves. It also incorporates two control valves, two driven control valves, a flow meter set. Note here that the methanol distributor unit first and second assembly adapter free ends communicate with the flow meter set and control valve flanges, while the said unit third and fourth assemblies have their two free flanges jointed to the driven control valve flanges and with the other two free flanges jointed to those of the control valves. Note also that the aforesaid unit two fifth assembly flanges are jointed to the driven control valves flanges and the unit pipe free ends are jointed to the flow meter set. Here mind that the methanol distributor unit first and second assembly T-joint free ends are jointed to the methane main and connected to the process automatic control station. Note also that the proposed unit incorporates additionally a post and a post with a pan comprising vertical supports, horizontal supports, guides, a pan and a pipe, the post assembly units being welded together and the post proper being welded to the post with pan.

EFFECT: invention allows measuring preset methanol amount in real time, adjusting methanol flow rate on departure from preset parameters, feeding methanol into two independent inlets.

12 dwg

Description

The invention relates to the field of mechanics, namely to technical pipelines, and can be used in the mining industry, in particular, for automatic dosing of a hydrate inhibitor injected into a number of natural gas pipelines to prevent and eliminate hydrate formation in them.

The known block of dosage of the inhibitor ING 2 CA 3.620.021, used for manual and automatic control of the flow of the inhibitor, in particular methanol, at 6 points of entry (Product catalog "NPO Promavtomatika").

The known distribution panel of the PRI-350 inhibitor used in the arrangement of the Yamburgskoye gas field, which made it possible to inhibit 12 points, as well as regulate the supply in manual mode according to the operator’s instructions (Technical description and operating instructions for the Saratov branch of SKB VNPO Soyuzgazavtomatika).

However, in these designs there are no means for measuring the flow rate of the inhibitor, as well as reliable flow controllers and shutoffs. Also, in these designs there is no real possibility of remote control of the inhibitor flow rate, in particular, methanol supply, for each inhibition point individually, depending on the current gas parameters. For example, for one point, the calculated quantity is continuously supplied, and for the second - in discrete mode (at certain intervals) or if necessary, for example, in the infield collector.

To ensure the operation of the field and depending on its technological features, the set of blocks can be in any quantity.

The objective of the invention is to develop the design of a methanol distribution unit, allowing:

- measure a given amount of methanol in real time using a measuring device;

- adjust for deviations from a given amount;

- integrate this system into a general-purpose automatic process control station (APCS) using a combination of real-time metering and regulation;

- submit methanol to two entry points, each of which is autonomous.

The problem is achieved in that the methanol distribution unit consists of six nodes of the methanol distribution unit, four of which include six collectors equipped with valves. The methanol distribution unit is characterized in that it is equipped with two control valves, two control valves with actuators, a flowmeter kit. The first and second nodes of the methanol distribution unit with the free ends of the adapters are connected to the flowmeter set and control valve flanges. The third and fourth nodes of the methanol distribution unit are connected by two free flanges to the flanges of the control valves with actuators, and the other two with the flanges of the control valves. Two fifths of the methanol distribution unit are connected by their flanges to the flanges of the control valves with actuators, and the free ends of the pipes with a flowmeter kit. At the same time, the free ends of the tees of the first and second nodes of the methanol distribution unit are connected to a general field methane piping system and an automatic process control station. The methanol distribution unit is equipped with a stand and a stand with a pallet, including vertical supports, horizontal supports, guides, a pallet and a pipe, and the components of the rack are interconnected by welding, while the rack is connected to the rack with the pallet by welding.

The invention is illustrated by a detailed description and drawings, in which:

Figure 1 depicts a General view of the distribution block of methanol;

Figure 2 depicts a view A of a methanol distribution unit;

Figure 3 depicts a view B of a methanol distribution unit;

Figure 4 depicts a unit 1 of a methanol distribution unit;

Figure 5 depicts a view In the node 1 of the methanol distribution unit;

6 depicts a node 2 of a methanol distribution unit;

7 depicts a view G of the node 2 of the methanol distribution unit;

Fig. 8 depicts nodes 3 and 4 of a methanol distribution unit;

Fig.9 depicts the nodes 5 and 5A of the methanol distribution unit;

Figure 10 depicts the rack block distribution of methanol;

11 depicts a view of the rack R of the methanol distribution unit;

12 is a cross-sectional view EE of a methanol distribution unit strut.

The methanol distribution unit consists of six nodes of the methanol distribution unit 1, 2, 3, 4, 5, 5a (Figs. 1, 2), two control valves 6 and 6a, two control valves with actuators 7 and 7a, a flowmeter set 8, consisting of two sections, racks 9 and racks with a pallet 10 (Fig 1, 3).

The first node of the methanol distribution unit 1 (Fig. 1) includes a collector 12 (Fig. 4) made in the form of an adapter 12p and a tee connected by welding, the outlet end of which is connected to a collector 13, which is connected by welding pipe and flange. The second end of the tee of the collector 12 is connected to the collector 14, made in the form of connected in series outlet, pipe, adapter and flange. The flange of the collector 13 is connected using studs and nuts to the valve flange 15, the latter is also connected using studs and nuts to the manifold 16, made in the form of interconnected flange, pipe section, tee, the outlet end of which is connected to the pipe section, the latter is connected to flange, the free end of the tee of the manifold 16 is connected to the flange. The flange located above the tee is connected by means of studs and nuts to the valve 17 (Fig. 4, 5), the latter is also connected by means of studs and nuts to the manifold 18 (Fig. 4), made of a segment, connected in series by welding the flange, pipe and flange. The flange connected to the free end of the manifold tee 13 is connected using studs and nuts to the valve flange 19, the second flange of which is connected to the tee 20 (Figs. 1, 3). The latter is connected by one free end to the pipe 11. The collector flange 14 is connected to the valve flange 21 (Figs. 4, 5) using studs and nuts, the second valve flange 21 is connected to the manifold flange 22, made in the form of a series-connected flange, pipe, tee . The outlet end of the latter is connected to a spherical valve 23. The free end of the manifold tee 22 (FIG. 4) is connected to the tee 24, the latter is connected to the pipe 11a.

The collector 14a (Fig. 6, 7) of the assembly 2 (Fig. 1, 2) is made like the collector 14 (Fig. 4) of the assembly 1 of the methanol distribution unit (Fig. 1) from the outlet and pipe, but they are interconnected in such a way that the node 2 of the methanol distribution unit (Figure 2) is symmetrical to the node 1 relative to the longitudinal axis of the methanol distribution unit. All other parts of the node 2-12a, 13a, 15a-24a (Fig. 6, 7) are interconnected as well as in the node 1 (Fig. 4, 5).

Adapters 12p and 12ap of the collectors 12 and 12a (Figs. 4, 6) are connected to a set of a flowmeter 8 (Fig. 1), for example, a two-channel electronic ultrasonic flowmeter-counter URVS-520, manufactured by Rise CJSC. The device has a 4-channel logic output module. The flow meter measures the average flow rate and the volume of fluid in pressure pipelines. Measurements are made for each channel, and information is output to external interfaces.

The node 3 (Fig. 1, 2) of the methanol distribution unit consists of a collector 25 (Fig. 8) made in the form of a flange, a pipe and a flange connected by welding, the latter is connected by means of studs and nuts to the valve flange 26, the second flange which also with the help of studs and nuts is connected to the collector flange 27, made in the form of a flange, pipe and tee connected in series, the free end of which is connected to the flange. The latter with the help of studs and nuts is connected to the flange of the valve 28, which in turn is connected to the collector 29, made in the form of interconnected flange, outlet and flange. The outlet end of the manifold tee 27 is connected to the tee 30, the latter with its branch end connected to a spherical crane, and the free end to the flange of the reverse rotary valve 32. The latter is in turn connected to a valve 33 provided with counterflanges.

The node 4 (Figure 2) of the methanol distribution unit has a design identical to that of the node 3 (Figure 2, 8) of the methanol distribution unit.

The flanges 29 and 29a (Fig. 8) of the third and fourth nodes of the methanol distribution unit are connected to the flanges of the control valves 6 and 6a (Figs. 1, 2), for example control valves with a manual actuator type RK-R manufactured by Rust 95 CJSC. The flanges of the collectors 25 and 25a (Fig. 8) are connected to the flanges of the control valves with actuators 7 and 7a (Fig. 1, 2), for example, control valves with membrane pneumatic actuators and electro-pneumatic positioners such as PK manufactured by Rust 95, which are designed for continuous changes in the flow of the controlled environment.

The nodes 5 and 5a (Fig.1, 2) are made of series-connected by welding pipe, branch, pipe and flange.

The flanges of the manifolds 35 and 35a (FIG. 9) of the two fifth nodes of the methanol distribution unit 5 and 5a are connected to the flanges of the control valves with actuators 7 and 7a (FIG. 2). The free ends of the pipes of the collectors 35 (Fig. 9) are connected to the flowmeter set 8 (Fig. 1).

The rack 9 (Figure 1) is a vertical support connected by welding with the pallet 43 (Figure 10) of the rack 10.

The rack with the pallet 10 (Fig. 1) is made of vertical supports 36, 37 (Fig. 10, 12), horizontal supports 38, 39 and guides 40, 40a, 41, 41a, 42, 42a of the pallet 43 and pipe 44. Components racks are interconnected by welding.

The methanol distribution unit is mounted in the technological workshop as follows.

The first methanol distribution unit 1 (FIG. 4) and the second methanol distribution unit 2 (FIG. 6) are mounted on the rack 9 (FIG. 1) and the rails 41, 42, 41a, 42a of the rack with the pallet 10 (FIG. 1, 10, 11), and the first 1 and second 2 methanol distribution blocks are located symmetrically with respect to its longitudinal axis (Figure 2).

The third 3 and fourth 4 nodes of the methanol distribution unit (Fig. 8) are installed on rails 42 and 42a of the rack with the pallet 10 (Figs. 1, 10).

Then the third 3 and fourth 4 nodes of the methanol distribution unit (Fig. 8) are connected by the flanges of the manifolds 29 to the inlet flanges of the two control valves 6 (Fig. 1) with the help of studs and nuts. And the first 1 and second 2 nodes of the methanol distribution unit (Figure 4) are connected by flanges of the collectors 18 and 18a with studs and nuts to the output flanges of the two control valves 6 (Figure 1).

The fifth nodes 5 and 5a of the methanol distribution unit (FIG. 2) are connected by their flanges using studs and nuts with the flanges of the manifolds 25 (FIG. 8) of the third 3 and fourth 4 nodes of the methanol distribution unit (FIGS. 1, 2).

Adapters 12p and 12ap of the collectors 12 and 12a (Figs. 4, 6) of the first 1 and second 2 nodes of the methanol distribution unit (Figs. 1, 2) and pipes (Fig. 9) of the fifth 5 and 5a (Figs. 1, 2) nodes the methanol distribution unit is connected to the flowmeter set 8 (FIG. 1) by welding.

The flanges 29 and 29a (Fig. 8) of the third and fourth nodes of the methanol distribution unit are connected to the flanges of the control valves 6 and 6a (Figs. 1, 2) using studs and nuts. The flanges of the manifolds 25 and 25a (Fig. 8) are connected to the flanges of the control valves with actuators 7 and 7a (Figs. 1, 2) using studs and nuts.

The flanges of the manifolds 35 and 35a (FIG. 9) of the two fifth nodes of the methanol distribution unit 5 and 5a are connected to the flanges of the control valves with actuators 7 and 7a (FIG. 2) using studs and nuts. The free ends of the pipes of the collectors 35 (Fig. 9) are connected to the flowmeter set 8 (Fig. 1) by welding.

Tees 20 and 20a (Figs. 4, 6) of the first and second methanol distribution units are connected by one of their branch ends by welding with pipe 11 (Fig. 3), and tees 24 and 24a (Figs. 4, 6) of the first and second the methanol distribution units are connected to one of their branch ends by welding with the pipe 11a (FIG. 3).

After the installation of the methanol distribution unit in the technological workshop is completed, the methanol distribution unit with the free branch ends of the tees 20, 20a, 24 and 24a of the first and second nodes of the methanol distribution unit and the free ends of the tees, the pipe 44 is connected by welding to the general field methane piping system through the filter unit (ASUTP system )

The number of blocks is determined based on the number of methanol entry points needed to maintain a non-hydrate mode of gas production, preparation and transportation.

In the described block there are two devices built into the process control system and working according to a certain algorithm due to the electronic pulses supplied to their control elements. There is also a control valve with a manual actuator, since the unit is a system that works autonomously, but with a redundant branch of manual adjustment, which increases the reliability of the unit as a whole.

The developed design of the methanol distribution unit allows you to measure a given amount of methanol in real time using a metering device, adjust the amount of methanol supply at deviations from the set parameters, and also supply methanol to two input points, each of which is autonomous.

In addition, this design allows you to integrate this system into a general-purpose automatic process control station (APCS) using a combination of real-time metering and regulation.

Claims (1)

The methanol distribution unit, consisting of six nodes of the methanol distribution unit, four of which include six manifolds equipped with valves, characterized in that it is equipped with two control valves, two control valves with actuators, a flowmeter kit, the first and second nodes of the methanol distribution unit the free ends of the adapters are connected to the flowmeter set and the flanges of the control valves, the third and fourth nodes of the methanol distribution unit are connected by two free flanges With the flanges of the control valves with actuators, and two others with the flanges of the control valves, two fifths of the methanol distribution unit are connected by their flanges to the flanges of the control valves with actuators, and the free ends of the pipes with a flowmeter set, while the free ends of the tees of the first and second unit units methanol distribution is connected to a general methane piping system and an automatic process control station, and is also equipped with a rack and a rack with a pallet, including vertical supports, horizontal supports, guides, a pallet and a pipe, and components of the rack are interconnected by welding, while the rack is connected to the rack with the pallet by welding.

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