CN217952852U

CN217952852U - Novel heat exchanger used in hydrogen purification process

Info

Publication number: CN217952852U
Application number: CN202221812090.0U
Authority: CN
Inventors: 孙家亮; 赵爱德; 范潇
Original assignee: Shandong Qilu Hydrogen Energy Research Institute Co ltd
Current assignee: Shandong Qilu Hydrogen Energy Research Institute Co ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-12-02
Anticipated expiration: 2032-07-13

Abstract

The application provides a novel heat exchanger that uses among hydrogen purification process, including the installation storehouse, the lateral wall is provided with air inlet and gas outlet respectively around the installation storehouse, installation storehouse inner chamber is separated into air cooling chamber and liquid cooling chamber by preceding to the back through the heat insulating board, be provided with the air-cooled subassembly in the air cooling intracavity, the liquid cooling intracavity is provided with the liquid cooling subassembly, the air-cooled subassembly is including setting up first shunt tubes and the first collecting pipe on air cooling chamber front side inner wall and rear side inner wall respectively, be connected with a plurality of first heat dissipation branch pipes between first shunt tubes and the first collecting pipe, the heat dissipation window has been seted up on lateral wall and the roof about the air cooling chamber, first collecting pipe connection liquid cooling subassembly, the gas outlet is connected to the liquid cooling subassembly, be provided with on the right side wall in liquid cooling chamber with the refrigerant import and the refrigerant export of liquid cooling subassembly refrigerant storage unit intercommunication, be provided with the controller on the installation storehouse outer wall. This application can carry out accurate detection to the hydrogen sulfide in the hydrogen to accelerate the hydrogen desulfurization through supplementary acceleration mechanism.

Description

Novel heat exchanger used in hydrogen purification process

Technical Field

The application relates to the technical field of hydrogen preparation, in particular to a novel heat exchanger used in a hydrogen purification process.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

In a chlor-alkali industry chlorine-hydrogen treatment system, hydrogen entering a hydrogen compressor is mainly cooled and cooled by a front cooler, the front cold-heat exchange load is large, the heat exchange efficiency is easily influenced by the quality of circulating water and weather reasons, when the heat exchange efficiency is insufficient, the water content of the hydrogen is large, the alkali content is large, and after the hydrogen is compressed and fed to be synthesized, alkali mist in the hydrogen is gradually accumulated at a synthesis lamp head, so that the synthesis lamp head is blocked, and a synthesis furnace cannot be safely and stably operated for a long time. The heat exchange performance of the heat exchanger directly influences the subsequent working procedure, and the prior heat exchanger generally has the problem of low heat exchange efficiency.

Disclosure of Invention

This application has proposed the novel heat exchanger that uses in the hydrogen purification process in order to solve above-mentioned problem, cools down hydrogen through air-cooling and liquid cooling dual mode, and heat exchange efficiency is high, prevents that hydrogen heat exchange efficiency is not enough to influence subsequent handling.

The utility model provides a novel heat exchanger that hydrogen purification in-process used, including the installation storehouse, the lateral wall is provided with air inlet and gas outlet respectively around the installation storehouse, and installation storehouse inner chamber passes through the heat insulating board by preceding to after separating into air-cooled chamber and liquid cooling chamber, be provided with the air-cooled subassembly in the air-cooled intracavity, the liquid cooling intracavity is provided with the liquid cooling subassembly, the air-cooled subassembly is including setting up first shunt tubes and the first collecting pipe on air-cooled chamber front side inner wall and rear side inner wall respectively, be connected with a plurality of first heat dissipation branch pipes between first shunt tubes and the first collecting pipe, seted up the heat dissipation window on lateral wall and the roof about the air-cooled chamber, first collecting pipe connection liquid cooling subassembly, the gas outlet is connected to the liquid cooling subassembly, is provided with the refrigerant import and the refrigerant export with liquid cooling subassembly storage unit intercommunication on the right side wall in liquid-cooled chamber, is provided with the controller of being connected with air-cooled subassembly and liquid cooling subassembly electricity on the installation storehouse outer wall.

Preferably, the air cooling assembly further comprises a heat conduction frame fixedly arranged in the air cooling cavity, the heat conduction frame is of an up-down layered structure, the first heat dissipation branch pipe is a multi-stage bending pipe, and the first heat dissipation branch pipe penetrates through each layer of frame of the heat conduction frame in a front-back reciprocating mode.

Preferably, heat conduction frame includes by preceding to the parallel two mounting panels of locating the forced air cooling intracavity that hang down in the back, and the relative terminal surface of two mounting panels is connected with multilayer frame group from top to bottom, frame group contains the frame pole the same with first heat dissipation branch pipe quantity, first heat dissipation branch pipe is reciprocal to run through both sides mounting panel and each layer frame pole.

Preferably, radiating fins are arranged between each layer of frame group of the heat conducting frame in a matrix mode.

Preferably, air inlet fans are embedded in the heat dissipation windows of the left side wall and the right side wall of the air cooling cavity, and exhaust fans are embedded in the heat dissipation windows of the top wall of the air cooling cavity.

Preferably, the liquid cooling assembly comprises a plurality of second collecting pipes symmetrically arranged on the front side wall and the rear side wall of the liquid cooling chamber from top to bottom, a branch pipe group consisting of a plurality of second heat dissipation branch pipes is connected between the two mutually symmetrical second collecting pipes, a liquid cooling tank is sleeved on the periphery of the branch pipe group, a refrigerant chamber is arranged in the liquid cooling tank, the second collecting pipes at the bottom of the front side wall of the liquid cooling chamber are communicated with the first collecting pipes, the second collecting pipes at the top of the rear side wall of the liquid cooling chamber are communicated with the gas outlet, every two adjacent second collecting pipes on the same side wall and up and down in the rest of the second collecting pipes form a backflow assembly, the two second collecting pipes of the backflow assembly are communicated through a guide pipe, and the refrigerant chamber of each liquid cooling tank is communicated with the refrigerant inlet and the refrigerant outlet through a refrigerant flow distribution assembly.

Preferably, the refrigerant flow distribution assembly comprises two refrigerant collecting pipes arranged in parallel on the right side wall of the liquid cooling bin, the refrigerant collecting pipes are respectively communicated with the refrigerant cavities of the liquid cooling boxes through connecting branch pipes, and the two refrigerant collecting pipes are respectively communicated with the refrigerant inlet and the refrigerant outlet.

Preferably, an integrated liquid outlet pipe is embedded in the rear side wall of the mounting bin, the gas outlet is formed in the rear end face of the integrated liquid outlet pipe, the second collecting pipe at the top of the rear side wall of the liquid cooling cavity and the backflow component located on the rear side wall of the liquid cooling cavity are communicated with the integrated liquid outlet pipe, a temperature sensing probe electrically connected with the controller is embedded in the corresponding second collecting pipe, and the backflow component is communicated with the integrated liquid outlet pipe through a first electromagnetic valve.

Preferably, a second electromagnetic valve is arranged at the joint of the refrigerant collecting pipe and the connecting branch pipe.

Preferably, a pressurizing pump is arranged at the connecting part of the second collecting pipe and the first collecting pipe at the bottom of the front side wall of the liquid cooling cavity.

Compared with the prior art, the beneficial effects of this application do:

(1) This application carries out preliminary cooling to hydrogen through the forced air cooling subassembly, further cools down to hydrogen through the liquid cooling subassembly again, and heat exchange efficiency is high, makes hydrogen can fully cool down, guarantees the permanent steady operation of hydrogen inventory process.

(2) This application is through the heat conduction frame among the air-cooled subassembly and the first heat dissipation branch pipe of a plurality of multistage bending abundant contact, and the very big heat radiating area and the heat dissipation route of having increaseed of cooperation fin, the cooperation is admitted air fan and air discharge fan and is strengthened the air flow, has guaranteed the heat exchange efficiency of air-cooled subassembly.

(3) This application has increaseed heat dissipation route and heat radiating area through multilayer second collecting pipe and the second heat dissipation branch pipe in the liquid cooling subassembly, the heat exchange efficiency of liquid cooling subassembly has been strengthened, simultaneously through liquid cooling chamber rear side backward flow subassembly be connected with the solenoid valve of integrated drain pipe and the liquid cooling case that the components of a whole that can function independently design and be connected with refrigerant collection pipe solenoid valve, the developments of liquid cooling route are adjustable, both guarantee the abundant cooling when hydrogen high temperature, also guarantee that hydrogen can in time reduce the liquid cooling route when not high relatively, guarantee that hydrogen in time carries to rear process.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

Figure 1 is a schematic view of the overall structure of an embodiment of the present application,

figure 2 is a schematic diagram of the internal structure of an embodiment of the present application,

figure 3 is a schematic view of a portion of an air-cooled assembly according to an embodiment of the present application,

figure 4 is a side view of a liquid cooled assembly according to one embodiment of the present application,

FIG. 5 is a front view of a liquid cooling assembly according to an embodiment of the present application.

In the figure:

1. the installation cabin comprises an installation cabin body, 2, an air cooling assembly, 3, a liquid cooling assembly, 4, a heat insulation plate, 5, a pressure pump, 6, an integrated liquid outlet pipe, 101, an air inlet, 102, an air outlet, 103, a refrigerant inlet, 104, a refrigerant outlet, 201, a first branch pipe, 202, a first heat dissipation branch pipe, 203, a heat conduction frame, 204, a first collecting pipe, 205, a heat dissipation fin, 206, an air inlet fan, 207, an exhaust fan, 301, a second collecting pipe, 302, a second heat dissipation branch pipe, 303, a liquid cooling box, 304, a refrigerant collecting pipe, 305, a connecting branch pipe, 306 and a temperature sensing probe.

The specific implementation mode is as follows:

the present application will be further described with reference to the following drawings and examples.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only relational terms determined for convenience in describing structural relationships of the parts or elements of the present disclosure, and do not refer to any parts or elements of the present disclosure, and are not to be construed as limiting the present disclosure.

As shown in fig. 1 to 5, the application provides a novel heat exchanger used in a hydrogen purification process, which comprises an installation bin 1, wherein the front side wall and the rear side wall of the installation bin 1 are respectively provided with an air inlet 101 and an air outlet 102, an inner cavity of the installation bin 1 is divided into an air cooling cavity and a liquid cooling cavity from front to back through a heat insulation plate 4, the air cooling cavity is internally provided with an air cooling assembly 2, the liquid cooling cavity is internally provided with a liquid cooling assembly 3, the air cooling assembly 2 comprises a first shunt pipe 201 and a first collecting pipe 204 which are respectively arranged on the front inner wall and the rear inner wall of the air cooling cavity, a plurality of first radiating branch pipes 202 are connected between the first shunt pipe 201 and the first collecting pipe 204, radiating windows are arranged on the left side wall, the right side wall and the top wall of the air cooling cavity, the first collecting pipe 204 is connected with the liquid cooling assembly 3, the liquid cooling assembly 3 is connected with the air outlet 102, a refrigerant inlet 103 and an outlet 104 which are communicated with a storage part of the liquid cooling assembly 3 are arranged on the right side wall of the liquid cooling cavity, and a controller which is electrically connected with the air cooling assembly 2 and the liquid cooling assembly 3 is arranged on the outer wall of the installation bin 1.

The hydrogen enters the installation bin 1 from the air inlet 101, is cooled by the air cooling assembly 2 and the liquid cooling assembly 3, and is discharged from the air outlet 102 for subsequent processes.

Specifically, the air-cooling assembly 2 further includes a heat conduction frame 203 fixedly disposed in the air-cooling cavity, the heat conduction frame 203 is of an up-and-down layered structure, and the first heat dissipation branch pipes 202 are multi-stage bending pipes and are inserted into each layer of side frames of the heat conduction frame 203 in a back-and-forth reciprocating manner.

Specifically, heat conduction frame 203 includes by preceding to two mounting panels of back parallel perpendicular locating the forced air cooling intracavity, and the relative terminal surface of two mounting panels is connected with multilayer frame group from top to bottom, frame group contains the frame pole the same with first heat dissipation branch pipe 202 quantity, first heat dissipation branch pipe 202 reciprocates and runs through both sides mounting panel and each layer frame pole.

Specifically, the air cooling chamber left and right side wall radiating window is embedded with air inlet fan 206, and its roof radiating window is embedded with exhaust fan 207.

Hydrogen flows into each first heat dissipation branch pipe 202 through the first collecting pipe 204, the first heat dissipation branch pipes 202 penetrate through the mounting plates on the two sides and the frame rods on each layer in a reciprocating mode to ensure that the first heat dissipation branch pipes 202 are in full contact with the heat conduction frame 203 for heat dissipation, and the controller controls the air inlet fans 206 on the left side and the right side and the top exhaust fan 207 to be started to drive air to flow so as to accelerate heat dissipation.

Preferably, the heat dissipation fins 205 are arranged between each layer of the frame group of the heat conduction frame 203 in a matrix manner, and the heat dissipation fins 205 are used for further increasing the heat dissipation area of the air cooling component and accelerating the hydrogen cooling.

Specifically, the liquid cooling assembly 3 includes a plurality of second collecting pipes 301 symmetrically arranged on the front and rear side walls of the liquid cooling chamber from top to bottom, a branch pipe group composed of a plurality of second heat dissipation branch pipes 302 is connected between two mutually symmetrical second collecting pipes 301, a liquid cooling box 303 is sleeved on the periphery of the branch pipe group, a refrigerant chamber is arranged in the liquid cooling box 303, the second collecting pipe 301 at the bottom of the front side wall of the liquid cooling chamber is communicated with the first collecting pipe 204, the second collecting pipe 301 at the top of the rear side wall is communicated with the gas outlet 102, every two adjacent second collecting pipes 301 in the rest of the second collecting pipes 301 located on the same side wall and up and down form a backflow assembly, the two second collecting pipes 301 of the backflow assembly are communicated through a conduit, and the refrigerant chamber of each liquid cooling box is respectively communicated with the refrigerant inlet 103 and the refrigerant outlet 104 through the refrigerant flow distribution assembly.

Specifically, the refrigerant flow dividing assembly includes two refrigerant collecting pipes 304 disposed in parallel on the right side wall of the liquid cooling compartment, the refrigerant collecting pipes 304 are respectively communicated with the refrigerant cavities of the liquid cooling boxes 303 through connecting branch pipes 305, and the two refrigerant collecting pipes 304 are respectively communicated with the refrigerant inlet 103 and the refrigerant outlet 104.

The second collecting pipe 301 cooperates with the second radiating branch pipes 302 to form a liquid cooling radiating path which is bent up and down and reciprocates, a refrigerant enters one of the refrigerant collecting pipes 304 through the refrigerant inlet 103, then enters each liquid cooling tank 303 to perform heat exchange and temperature reduction on hydrogen passing through the corresponding second radiating branch pipe 302, the refrigerant flows out through the other refrigerant collecting pipe 304 and the refrigerant outlet 104, and the hydrogen flows in from the first collecting pipe 204 and flows out from the air outlet 102.

Preferably, it is equipped with integrated drain pipe 6 to inlay on the installation storehouse 1 rear side wall, gas outlet 102 sets up in integrated drain pipe 6 rear portion terminal surface, and the second collecting pipe 301 at liquid cold chamber rear side wall top and be located the backward flow subassembly of liquid cold chamber rear side wall lower part second collecting pipe 301 and integrated drain pipe 6 are linked together and correspond the embedded temperature sensing probe 306 that is connected with the controller electricity that is equipped with of second collecting pipe 301, the backward flow subassembly is linked together through first solenoid valve with integrated drain pipe 6.

Temperature sensing probe 306 detects the hydrogen temperature of relevant position, if hydrogen has cooled down to preset the temperature, then the solenoid valve in the corresponding backward flow subassembly is opened to the controller, makes hydrogen skip remaining liquid cooling route, directly flows out through integrated drain pipe 6, gas outlet 102, is convenient for reduce heat transfer time, in time discharges hydrogen, improves hydrogen purification flow efficiency.

The second electromagnetic valve is arranged at the joint of the refrigerant collecting pipe 304 and the connecting branch pipe 305, and is used for controlling the inflow and outflow of the refrigerant corresponding to the liquid cooling box 303, so that when the hydrogen is cooled to a preset temperature in advance and flows out of the first electromagnetic valve of the backflow assembly, the refrigerant circulation in the liquid cooling box 303 corresponding to the rest liquid cooling path is closed in time, and the waste of the refrigerant is avoided.

The second collecting pipe 301 of lateral wall bottom is provided with force (forcing) pump 5 with the connecting portion of first collecting pipe 204 before the liquid cooling chamber, force (forcing) pump 5 and controller electrical connection accelerate hydrogen flow under the control of controller, prevent that hydrogen from descending because of the velocity of flow that air-cooled subassembly 2, liquid cooling subassembly 3 divided by the way and the extension of route caused, improve the speed that hydrogen flowed through this application.

The controller can be a single chip microcomputer.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Although the embodiments of the present application have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present application, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive effort by those skilled in the art.

Claims

1. Novel heat exchanger that uses among hydrogen purification process, including installation bin (1), its characterized in that: the air cooling device is characterized in that the front side wall and the rear side wall of the installation bin (1) are respectively provided with an air inlet (101) and an air outlet (102), the inner cavity of the installation bin (1) is divided into an air cooling cavity and a liquid cooling cavity from front to back through a heat insulation plate (4), an air cooling assembly (2) is arranged in the air cooling cavity, a liquid cooling assembly (3) is arranged in the liquid cooling cavity, the air cooling assembly (2) comprises a first shunt pipe (201) and a first collecting pipe (204) which are respectively arranged on the front side inner wall and the rear side inner wall of the air cooling cavity, a plurality of first heat dissipation branch pipes (202) are connected between the first shunt pipe (201) and the first collecting pipe (204), heat dissipation windows are formed in the left side wall, the right side wall and the top wall of the air cooling cavity, the first collecting pipe (204) is connected with the assembly (3), the air outlet (102) is connected with the refrigerant assembly (3), a refrigerant inlet (103) and a liquid cooling outlet (104) which are communicated with a refrigerant storage part of the liquid cooling assembly (3) are formed in the right side wall of the liquid cooling cavity, and a controller which is electrically connected with the air cooling assembly (2) and the liquid cooling assembly (3) is arranged on the outer wall of the installation bin (1).

2. The novel heat exchanger used in the hydrogen purification process according to claim 1, characterized in that:

the air cooling assembly (2) further comprises a heat conduction frame (203) fixedly arranged in the air cooling cavity, the heat conduction frame (203) is of an upper-lower layered structure, the first heat dissipation branch pipes (202) are multi-stage bending pipes, and the first heat dissipation branch pipes penetrate through and are inserted into all layers of side frames of the heat conduction frame (203) in a front-back reciprocating mode.

3. The novel heat exchanger used in the hydrogen purification process according to claim 2, characterized in that:

heat conduction frame (203) include by preceding to the parallel two mounting panels of locating the forced air cooling intracavity that hang down in the back, the relative terminal surface of two mounting panels is connected with multilayer frame group from top to bottom, frame group contains the frame pole the same with first heat dissipation branch pipe (202) quantity, first heat dissipation branch pipe (202) are reciprocal to run through both sides mounting panel and each layer frame pole.

4. The novel heat exchanger used in the hydrogen purification process according to claim 3, characterized in that:

radiating fins (205) are arranged between each layer of frame groups of the heat conducting frame (203) in a matrix mode.

5. The novel heat exchanger used in the hydrogen purification process according to claim 4, characterized in that:

air inlet fans (206) are embedded in the heat dissipation windows of the left side wall and the right side wall of the air cooling cavity, and exhaust fans (207) are embedded in the heat dissipation windows of the top wall of the air cooling cavity.

6. The novel heat exchanger used in the hydrogen purification process according to claim 5, characterized in that:

the liquid cooling assembly (3) comprises a plurality of second collecting pipes (301) symmetrically arranged on the front side wall and the rear side wall of the liquid cooling cavity from top to bottom, a branch pipe group consisting of a plurality of second radiating branch pipes (302) is connected between the two second collecting pipes (301) which are symmetrical to each other, a liquid cooling box (303) is sleeved on the periphery of the branch pipe group, a refrigerant cavity is arranged in the liquid cooling box (303), the second collecting pipes (301) at the bottom of the front side wall of the liquid cooling cavity are communicated with the first collecting pipes (204), the second collecting pipes (301) at the top of the rear side wall are communicated with the gas outlet (102), two adjacent second collecting pipes (301) on the same side wall in the other second collecting pipes (301) form a backflow assembly, the two second collecting pipes (301) of the backflow assembly are communicated through a guide pipe, and the refrigerant cavity of each liquid cooling box (303) is respectively communicated with a refrigerant inlet (103) and a refrigerant outlet (104) through the flow distribution assembly.

7. The novel heat exchanger used in the hydrogen purification process according to claim 6, characterized in that:

the refrigerant flow dividing assembly comprises two refrigerant collecting pipes (304) which are arranged on the right side wall of the liquid cooling bin in parallel, the refrigerant collecting pipes (304) are respectively communicated with the refrigerant cavity of each liquid cooling box (303) through connecting branch pipes (305), and the two refrigerant collecting pipes (304) are respectively communicated with the refrigerant inlet (103) and the refrigerant outlet (104).

8. The novel heat exchanger used in the hydrogen purification process according to claim 7, characterized in that:

inlay on installation storehouse (1) rear side wall and be equipped with integrated drain pipe (6), gas outlet (102) set up in integrated drain pipe (6) rear portion terminal surface, and lower part second collecting pipe (301) are linked together and correspond temperature sensing probe (306) that second collecting pipe (301) are embedded to be equipped with and are connected with the controller electricity in second collecting pipe (301) and the backward flow subassembly that is located liquid cold chamber rear side wall in second collecting pipe (301) at liquid cold chamber rear side wall, backward flow subassembly is linked together through first solenoid valve with integrated drain pipe (6).

9. The novel heat exchanger used in the hydrogen purification process according to claim 7, characterized in that:

and a second electromagnetic valve is arranged at the joint of the refrigerant collecting pipe (304) and the connecting branch pipe (305).

10. The novel heat exchanger used in the hydrogen purification process according to claim 6, characterized in that:

and a pressurizing pump (5) is arranged at the connecting part of the second collecting pipe (301) at the bottom of the front side wall of the liquid cooling cavity and the first collecting pipe (204).