WO2024169039A1 - Single-hole heat exchanger - Google Patents

Abstract

A single-hole heat exchanger, comprising: a through-wall pipe; a heat exchange core body arranged in the through-wall pipe; a front core body fixing rack and a rear core body fixing rack for clamping the heat exchange core body front and back; an exhaust hood which forms a bayonet fit with the rear core body fixing rack; a rainproof silicone sleeve arranged at the tail end of the through-wall pipe; and a fan mounting assembly arranged at the head end of the through-wall pipe. The single-hole heat exchanger has complete basic functions, and can facilitate the adjusting of an angle of the exhaust hood and prevent rain from seeping through a wall.

Description

A single hole heat exchanger

This application claims the priority of the Chinese patent application filed with the China Patent Office on February 13, 2023, with application number 202320198122.0 and invention name “A Single-hole Heat Exchanger”, all contents of which are incorporated by reference into this application.

Technical Field

The present application relates to a single-hole heat exchanger.

Background Art

Heat exchangers (also called heat exchangers or heat exchange equipment) are devices used to transfer heat from hot fluid to cold fluid to meet specified process requirements. They are an industrial application of convective heat transfer and heat conduction. Heat exchangers can be classified in different ways. According to their operating process, they can be divided into three categories: partition type, hybrid type, and heat storage type (or heat recovery type); according to the compactness of their surface, they can be divided into compact type and non-compact type.

Current heat exchangers, such as a single-hole heat exchanger disclosed in Chinese patent application number 202010044028.0, have incomplete basic functions, such as the angle adjustment of the exhaust hood and the infiltration of rainwater outside the wall, which affect their use effect.

Summary of the invention

In view of the deficiencies in the prior art, the purpose of the present application is to provide a single-hole heat exchanger with complete basic functions, which can facilitate the adjustment of the exhaust hood angle and prevent rainwater from seeping into the wall.

The technical solution adopted by this application to solve its technical problem is:

A single-hole heat exchanger includes a through-wall pipe, a heat exchange core arranged in the through-wall pipe, a front core fixing frame and a rear core fixing frame for clamping the heat exchange core front and back, an exhaust hood forming a bayonet fit with the rear core fixing frame, a rainproof silicone sleeve arranged at the rear end of the through-wall pipe, and a fan mounting assembly arranged at the head end of the through-wall pipe.

Preferably, a first primary filter screen and a second primary filter screen are also provided in the wall-penetrating pipe.

Preferably, the first primary filter is located between the heat exchange core and the front core fixing frame, and the second primary filter is located between the heat exchange core and the rear core fixing frame.

Preferably, the rear core fixing frame is provided with a first bayonet, and the exhaust hood is provided with a second bayonet that matches the first bayonet.

Preferably, the rainproof silicone sleeve is an inverted silicone sleeve.

Preferably, the head end of the wall-penetrating tube is further provided with a front silicone sleeve, and the front silicone sleeve and the rainproof silicone sleeve are respectively sleeved on the front and rear end positions of the outside of the wall-penetrating tube.

Preferably, the fan mounting assembly includes a fan mounting plate disposed at the front of the wall-penetrating tube, an exhaust fan disposed at the front of the fan mounting plate, and an exhaust fan front cover disposed at the front of the exhaust fan.

Preferably, a fan connecting frame is provided on the fan mounting plate, and a hand-tightened nut is provided between the fan mounting plate and the fan connecting frame.

Preferably, the fan connecting frame is arranged on the outer edge portion of the fan mounting plate.

Preferably, the fan connecting frame is provided with positioning holes for fixing on a wall.

The beneficial effects of this application are:

The heat exchange core is fixed in a way that two core fixing frames are used to clamp the core front and back. At the same time, the core fixing frame at the rear and the exhaust hood have a bayonet structure. After installation, the exhaust hood can be selected following the core fixing frame at the rear, which is convenient for adjusting the angle of the exhaust hood. A silicone sleeve is added at the rear. When the through-wall component is assembled, the component is inserted into the wall, and then the extension distance of the exhaust hood is adjusted through the core fixing frame at the rear. At the same time, the silicone sleeve at the rear has an inverted design, which completely blocks the infiltration of rainwater from outside the wall.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of an exploded structure of a single-hole heat exchanger of the present application;

FIG2 is a schematic diagram of the assembly structure of a single-hole heat exchanger of the present application;

FIG3 is a schematic diagram of the structure of a fan mounting plate of a single-hole heat exchanger of the present application;

FIG4 is a schematic diagram of a single-hole heat exchanger in the present application in use;

FIG5 is a schematic diagram of the numbering of a single-hole heat exchanger of the present application when there are multiple machines;

FIG. 6 is a schematic diagram of group numbering when there are multiple single-hole heat exchangers in the present application.

DETAILED DESCRIPTION

The principles and features of the present application are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present application and are not used to limit the scope of the present application. The present application is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present application will become clearer according to the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise comparisons. Examples are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present application.

In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and/or" used herein includes any and all combinations of one or more of the related listed items.

Example 1

Referring to Figures 1-3, a single-hole heat exchanger includes a wall-penetrating tube 1, a heat exchange core 2 arranged in the wall-penetrating tube 1, a front core fixing frame 3 and a rear core fixing frame 4 for clamping the heat exchange core 2 front and back, an exhaust hood 5 forming a bayonet fit with the rear core fixing frame 4, a rainproof silicone sleeve 6 arranged at the rear end of the wall-penetrating tube 1, and a fan mounting assembly 7 arranged at the head end of the wall-penetrating tube 1.

A first primary filter 11 and a second primary filter 12 are also provided in the through-wall pipe 1. The first primary filter 11 is located between the heat exchange core 2 and the front core fixing frame 3, and the second primary filter 12 is located between the heat exchange core 2 and the rear core fixing frame 4. The first primary filter 11 and the second primary filter 12 are respectively abutted against the heat exchange core 2 to form a filtering structure.

The rear core fixing frame 4 is provided with a first bayonet 41, and the exhaust hood 5 is provided with a second bayonet 51 matched with the first bayonet 41. The first bayonet 41 and the second bayonet 51 cooperate to form a bayonet matching structure, thereby facilitating the adjustment of the angle of the exhaust hood 5.

The rainproof silicone sleeve 6 is an inverted silicone sleeve, and the head end of the wall-penetrating tube 1 is also provided with a front The silicone sleeve 8 and the rainproof silicone sleeve 6 are respectively sleeved on the front and rear ends of the wall-penetrating pipe 1. The rainproof silicone sleeve 6 with an inverted design can prevent rainwater outside the wall from penetrating between the wall-penetrating pipe 1 and the wall.

The fan mounting assembly 7 includes a fan mounting plate 71 arranged at the front of the wall-penetrating pipe 1, an exhaust fan 72 arranged at the front of the fan mounting plate 71, and an exhaust fan front cover 73 arranged at the front of the exhaust fan 72. A fan connecting frame 74 is provided on the fan mounting plate 71. A hand nut 75 is provided between the fan mounting plate 71 and the fan connecting frame 74. The fan connecting frame 74 is arranged on the outer edge of the fan mounting plate 71. A positioning hole for fixing to the wall is opened on the fan connecting frame 74. The fan connecting frame 74 is first installed. The installation of the fan connecting frame 74 facilitates the positioning of the fan mounting plate 71.

Example 2

The single-hole heat exchanger realizes indoor air supply and exhaust through the forward and reverse rotation of the motor; when there are more than two single-hole heat exchangers in the room, some of the machines are set to supply air to the room within a certain period of time (master), and the remaining machines are set to exhaust air to the room within the same period of time (slave); when the running time of the air supply machine is reached, it switches to exhaust air indoors, and the corresponding exhaust fan machine switches to supply air indoors, so as to ensure that the room is always ventilated and fresh air is supplied. This operation mode is called the master-slave linkage of the single-hole heat exchanger.

A wireless chip or module (such as 433, WiFi, Bluetooth, 433 is preferred) is built into the circuit board of the single-hole heat exchanger, and then it is set in the following two ways: 1. Use the remote control that comes with the machine to number the master and slave machines; in the setting mode, press the combination of keys on the remote control (such as "settings" + "exhaust" or "settings" + "supply") to send a signal to the machine, and the machine receives the signal and recognizes it as the master or slave through the electronic control board; 2. Press the buttons on the machine at the same time or in sequence to set the machine as the master or slave. During the process of linkage operation between the master and slave machines, the direction of the slave machine's motor is switched by the signal sent from the master machine. For example, when the master machine's motor has finished supplying air in the forward direction, the motor will stop for a few seconds, and at the same time, a signal will be sent to the slave machine (the slave machine is in the reverse exhaust state) through a wireless chip or module to stop the slave machine and switch the motor's direction of operation from reverse exhaust to forward air supply while the master machine is running. Each time the master machine's motor direction is switched, a signal needs to be sent to the slave machine, and the masters will transmit signals to each other to check each other's operating status, thereby ensuring the correctness of the linkage between the master and slave machines and keeping the room in a state of fresh air supply (as shown in Figure 4).

In this process, stopping the motor is first of all a protection mechanism for the motor. If the motor is running in the forward direction and the signal is directly given to the motor to run in the reverse direction, the motor will be damaged. It is necessary to ensure that the motor stops completely before reversing, which can effectively protect the motor; at the same time, stopping the operation for a few seconds can also effectively stop the slave motor and protect the slave motor. The built-in wireless chip or module in the single-hole heat exchanger effectively solves the limitation of the installation distance between the master and slave machines and is not affected by the building structure. At the same time, the motor operation signal of the slave machine is sent through the host, avoiding the overlap of the running direction of the master and slave motors.

In addition to the above basic master-slave linkage mode, there are also three enhanced linkage modes as follows:

1. The host can be one or more, and the same is true for the slaves (as shown in Figure 5). The operation mode of the master and slave is the same as above;

2. Multiple machines can be arranged into a group, in which there are also master and slave machines (the number of master and slave machines is as in the above two cases), and in multiple groups, the operation of the groups does not interfere with each other (as shown in Figure 6).

3. When there is a clear requirement for the ambient fresh air volume and exhaust air volume, set the performance parameters of each machine in the centralized control software, and then coordinate the operation of a single or multiple groups of machines through the centralized control software; for example:

(1) The performance parameters of the machine are that the fresh air volume and exhaust air volume are both 50CMH. There is a single group with 5 machines. The environmental requirements are 100CMH for the fresh air path and 150CMH for the exhaust air volume. Therefore, the centralized control software needs to set up 2 machines for air supply and 3 machines for exhaust. The 5 machines can switch to 2 machines for air supply and 3 machines for exhaust in turn, or they can maintain a fixed 2 machines for air supply and 3 machines for exhaust.

(2) The performance parameters of the machine are that the fresh air volume and exhaust air volume are both 60CMH. There are two groups, Group 1 has two machines and Group 2 has four machines. The environmental requirements are that the fresh air path is 120CMH and the exhaust air volume is 240CMH. Therefore, the centralized control software needs to set up two machines for supply air and four machines for exhaust air. Group 1 can be set to supply air and Group 2 to exhaust air, or one machine in Group 1 can be set to supply air and the other to exhaust air, while one machine in Group 2 can be set to supply air and the other machines can be set to exhaust air.

The beneficial effects of this application are:

The heat exchange core is fixed in a way that two core fixing frames are used to clamp the core front and back. At the same time, the core fixing frame at the rear and the exhaust hood have a bayonet structure. After installation, the exhaust hood can be selected following the core fixing frame at the rear, which is convenient for adjusting the angle of the exhaust hood. A silicone sleeve is added at the rear. When the through-wall component is assembled, the component is inserted into the wall, and then the extension distance of the exhaust hood is adjusted through the core fixing frame at the rear. At the same time, the silicone sleeve at the rear has an inverted design, which completely blocks the infiltration of rainwater from outside the wall.

The above embodiments of the present application are not intended to limit the protection scope of the present application. The method is not limited to this. All other forms of modifications, replacements or changes made to the above-mentioned structure of the present application based on the above-mentioned content of the present application, in accordance with the common technical knowledge and customary means in the field, without departing from the above-mentioned basic technical ideas of the present application, should fall within the protection scope of the present application.

Claims (10)

A single-hole heat exchanger is characterized in that it includes a through-wall pipe, a heat exchange core arranged in the through-wall pipe, a front core fixing frame and a rear core fixing frame for clamping the heat exchange core front and back, an exhaust hood forming a bayonet fit with the rear core fixing frame, a rainproof silicone sleeve arranged at the rear end of the through-wall pipe, and a fan mounting assembly arranged at the head end of the through-wall pipe. The single-hole heat exchanger according to claim 1 is characterized in that a first primary filter and a second primary filter are also provided in the wall-penetrating tube. The single-hole heat exchanger according to claim 2 is characterized in that the first primary filter is located between the heat exchange core and the front core fixing frame, and the second primary filter is located between the heat exchange core and the rear core fixing frame. The single-hole heat exchanger according to claim 1 is characterized in that a first bayonet is provided on the rear core fixing frame, and a second bayonet matching the first bayonet is provided on the exhaust hood. The single-hole heat exchanger according to claim 1 is characterized in that the rainproof silicone sleeve is an inverted silicone sleeve. The single-hole heat exchanger according to claim 5 is characterized in that a front silicone sleeve is also provided at the head end of the wall-penetrating pipe, and the front silicone sleeve and the rainproof silicone sleeve are respectively sleeved on the front and rear end positions of the outside of the wall-penetrating pipe. The single-hole heat exchanger according to claim 1 is characterized in that the fan mounting assembly includes a fan mounting plate arranged in front of the wall-penetrating tube, an exhaust fan arranged in front of the fan mounting plate, and an exhaust fan front cover arranged in front of the exhaust fan. The single-hole heat exchanger according to claim 7 is characterized in that a fan connecting frame is provided on the fan mounting plate, and a hand-tightened nut is provided between the fan mounting plate and the fan connecting frame. The single-hole heat exchanger according to claim 8 is characterized in that the fan connecting frame is arranged on the outer edge of the fan mounting plate. The single-hole heat exchanger according to claim 9 is characterized in that: the fan connecting frame is provided with a positioning hole for fixing to the wall.