Skid-mounted straight pipe type sleeve hydrogen heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, in particular to a skid-mounted straight pipe type sleeve hydrogen heat exchanger which comprises a plurality of heat exchange modules which are arranged side by side and / or in a stacked mode. The heat exchange module comprises a plurality of sleeves and a plurality of positioning assemblies, positioning holes are formed in the positioning assemblies, the sleeves penetrate through the positioning holes, and the positioning assemblies are arranged in the length direction of the sleeves; every two adjacent sleeves communicate with each other, the positioning assembly is provided with a connecting structure, and every two adjacent heat exchange modules are positioned through the connecting structures. According to the skid-mounted straight pipe type double-pipe hydrogen heat exchanger, the heat exchange modules are designed, the specifications of the skid-mounted hydrogen heat exchanger are unified, the skid-mounted layout of the hydrogen heat exchanger with various heat exchange requirements is simple, and the occupied space of the straight pipe type heat exchanger in the skid-mounted layout is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a skid-mounted straight-tube shell-and-tube hydrogen heat exchanger. Background Art

[0002] In skid-mounted hydrogen refueling stations, the hydrogen compressor must maintain a low inlet temperature, and the high-temperature hydrogen after supercharging requires cooling. Straight-tube hydrogen heat exchangers can meet high-pressure requirements, but they take up too much space, making them unsuitable for skid-mounted deployment. For example, the ferrule-type heat exchanger for cooling compressed hydrogen disclosed in CN212720991U, and the high-flow hydrogen heat exchanger disclosed in CN209978669U, require different lengths for the various hydrogen heat exchangers required to meet cooling requirements in skid-mounted hydrogen refueling stations, making skid-mounted deployment difficult. Utility Model Content

[0003] The purpose of the utility model is to propose a skid-mounted straight-tube shell-and-tube hydrogen heat exchanger. By designing a heat exchange module, the specifications of the skid-mounted hydrogen heat exchanger are unified, the skid-mounted layout of hydrogen heat exchangers with various heat exchange requirements is simple, and the space occupied by the straight-tube heat exchanger in the skid-mounted layout is reduced.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A skid-mounted straight tube-in-tube hydrogen heat exchanger comprises a plurality of heat exchange modules, wherein the plurality of heat exchange modules are arranged in a side-by-side manner and / or in a stacked manner;

[0006] The heat exchange module includes a plurality of sleeves and a plurality of positioning components, wherein the positioning components are provided with positioning holes, and the plurality of sleeves all pass through the positioning holes of the same positioning component, and the plurality of positioning components are arranged along the length direction of the sleeves;

[0007] Two adjacent sleeves are connected, and the positioning assembly is provided with a connecting structure, and two adjacent groups of heat exchange modules are positioned by the connecting structure.

[0008] Furthermore, the connection structure is located at the end and / or side of the positioning assembly, and the connection structure is divided into a mother component and a child component;

[0009] The mother component and the child component are respectively arranged at two opposite sides of the positioning component, or the mother component and the child component are respectively arranged at two opposite ends of the positioning component.

[0010] Furthermore, the mother component is provided with a limiting groove, and the end of the child component is inserted into the limiting groove.

[0011] Furthermore, the positioning assembly includes two positioning blocks arranged opposite to each other, the sides of the positioning blocks are provided with positioning grooves, and the positioning grooves of the two positioning blocks are combined to form the positioning hole;

[0012] The two positioning blocks are fixedly connected via a connecting piece.

[0013] Furthermore, several of the sleeves include an outer tube and an inner tube passing through the outer tube. The outer tubes of adjacent sleeves are connected by an H-shaped tube, and the inner tubes of adjacent sleeves are connected by an elbow and a connecting tube after passing through the H-shaped tube.

[0014] Furthermore, the H-shaped tube and the outer tube are an integrated structure.

[0015] Furthermore, the heat exchange module has a medium inlet end, a medium outlet end, a hydrogen inlet end and a hydrogen outlet end;

[0016] In the two adjacent heat exchange modules, the hydrogen outlet end of one heat exchange module is connected to the hydrogen inlet end of the other heat exchange module; the medium outlet end of one heat exchange module is connected to the medium inlet end of the other heat exchange module, or the medium inlet end and medium outlet end of the two heat exchange modules are respectively connected to the medium circulation equipment.

[0017] Furthermore, several of the heat exchange modules are spliced together to form a heat exchange module, and several of the heat exchange modules constitute a skid-mounted heat exchanger group;

[0018] Adjacent heat exchange modules are connected via the positioning assembly.

[0019] The technical solution provided by the utility model may have the following beneficial effects:

[0020] The positioning assembly combines several sleeves into a heat exchange module. The sleeves within the heat exchange module are interconnected, allowing for the circulation of hydrogen and the heat exchange medium within the sleeves. The positioning assembly allows for a regular and compact arrangement of the sleeves within the heat exchange module, reducing the size of the module. When multiple heat exchange modules are required for heat exchange, adjacent modules are connected and positioned via the positioning assembly's connecting structure, facilitating assembly and further compacting the heat exchanger structure. Furthermore, multiple hydrogen heat exchangers within a skid-mounted hydrogen refueling station can be stacked and arranged together, simplifying the skid-mounted layout of the hydrogen heat exchangers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of a heat exchange module according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic structural diagram of a heat exchange module according to another embodiment of the present invention;

[0023] Figure 3 is a radial cross-sectional schematic diagram of the heat exchange module;

[0024] Figure 4It is a structural diagram of the positioning component;

[0025] Figure 5 It is a schematic diagram of the connection between two heat exchange modules;

[0026] Among them, the heat exchange module 1, the sleeve 11, the outer tube 111, the inner tube 112, the positioning assembly 12, the mother part 122a, the sub-part 122b, the positioning block 123, the positioning groove 123a, the connecting part 124, the H-shaped tube 13, the medium inlet end 14, the medium outlet end 15, the hydrogen inlet end 16, and the hydrogen outlet end 17. DETAILED DESCRIPTION

[0027] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more such features, and are used to distinguish between the described features, without distinction of order or importance.

[0029] In the description of the present invention, unless otherwise specified, “a plurality of” means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] The following combination Figures 1 to 5 , describing a skid-mounted straight tube-in-tube hydrogen heat exchanger according to an embodiment of the present utility model.

[0032] A skid-mounted straight tube-in-tube hydrogen heat exchanger comprises a plurality of heat exchange modules 1, wherein the plurality of heat exchange modules 1 are arranged in a side-by-side manner and / or in a stacked manner;

[0033] The heat exchange module 1 includes a plurality of sleeves 11 and a plurality of positioning components 12. The positioning components 12 are provided with positioning holes. The plurality of sleeves 11 all pass through the positioning holes of the same component. The plurality of positioning components 12 are arranged along the length direction of the sleeves 11.

[0034] Two adjacent sleeves 11 are connected, and the positioning assembly 12 is provided with a connecting structure, and two adjacent groups of heat exchange modules 1 are positioned by the connecting structure.

[0035] In this technical solution, the positioning component 12 combines several sleeves 11 into a heat exchange module 1. The sleeves 11 in the heat exchange module 1 are connected to achieve the circulation of hydrogen and heat exchange medium in the sleeves 11. Through the setting of the positioning component 12, the sleeves 11 in the heat exchange module 1 are arranged regularly and compactly, reducing the volume of the ventilation module. When multiple groups of heat exchange modules 1 are needed for heat exchange, two adjacent groups of heat exchange modules 1 are connected and positioned by the connecting structure of the positioning component 12, which is quick to assemble and further makes the heat exchanger structure compact. In addition, multiple hydrogen heat exchangers in the skid-mounted hydrogen refueling station can be stacked and arranged together, making the skid-mounted layout of the hydrogen heat exchanger simple.

[0036] The multiple sleeves 11 in the heat exchange module are arranged side by side and interconnected one by one. It is understood that the number of sleeves 11 in the heat exchange module 1 can be set according to needs, providing great flexibility. The skid-mounted straight-tube-sleeve-11 hydrogen heat exchanger of the present invention not only has a compact structure and a simple skid-mounted layout, but also has the high-pressure resistance characteristics of a straight-tube heat exchanger.

[0037] In one embodiment of the present invention, the connecting structure is located at the end and / or side of the positioning component 12, and the connecting structure is divided into a mother component 122a and a child component 122b; the mother component 122a and the child component 122b are respectively arranged on the opposite sides of the positioning component 12, or the mother component 122a and the child component 122b are respectively arranged at the opposite ends of the positioning component 12.

[0038] When two heat exchange modules 1 are joined side by side, the sub-component 122b on the side of the positioning assembly 12 of one heat exchange module 1 is inserted into the mother component 122a on the side of the positioning assembly 12 of the other heat exchange module, thereby achieving the connection and positioning of the adjacent heat exchange modules 1. When two modules are joined in a stacked manner, the sub-component 122b at the bottom of the positioning assembly 12 of one heat exchanger is inserted into the mother component 122a at the top of the positioning assembly 12 of the other heat exchange module, thereby achieving the connection and positioning of the adjacent heat exchange modules 1. The plug-in positioning method of the sub-component 122b and the mother component 122a simplifies the splicing operation of the two adjacent heat exchange modules and simplifies the structure of the heat exchange modules 1.

[0039] Specifically, the mother component 122a is provided with a limiting groove, and the end of the child component 122b is inserted into the limiting groove. The child component 122b can be limited by inserting it into the mother component 122a. By setting the length of the child component 122b and the mother component 122a, the spacing between the two positioning components 12 can also be limited to adapt to the length of the adjacent switching module connection structure. Preferably, the limiting groove has a raised limiting strip, which is inserted into the groove on the surface of the child component 122b to make the connection between the child and mother components 122a more secure. In other embodiments, the child component 122b and the mother component 122a can also be positioned by screws after splicing.

[0040] In one embodiment of the present invention, the positioning assembly 12 includes two opposing positioning blocks 123. Positioning grooves 123a are provided on the sides of the positioning blocks 123. The positioning grooves 123a of the two positioning blocks 123 are combined to form a positioning hole. The two positioning blocks 123 are fixedly connected by a connector 124. After the sleeves 11 are positioned in the positioning groove 123a of one positioning block 123, they are then combined with the other positioning block 123 to achieve positioning of the sleeves 11, simplifying assembly. Preferably, at least one of the two positioning blocks 123 has a threaded hole, and the two positioning blocks 123 are fixedly connected using a countersunk screw.

[0041] Preferably, the mother component 122a and the positioning block 123 in a positioning component 12 are an integrally formed structure, and the sub-component 122b and the other positioning block 123 in the positioning component 12 are an integrally formed structure, so that the dimensions of large quantities of positioning components 12 are consistent, and the assembly of multiple heat exchange modules 1 is faster.

[0042] Specifically, each of the plurality of sleeves 11 includes an outer tube 111 and an inner tube 112 passing through the outer tube 111. The outer tubes 111 of adjacent sleeves 11 are connected by an H-shaped tube 13. The inner tubes 112 of adjacent sleeves 11 are connected by an elbow and a connecting tube after passing through the H-shaped tube 13, thereby realizing the connection between the two adjacent sleeves 11, realizing the flow of heat exchange medium between the outer tube 111 and the inner tube 112, and the flow of hydrogen in the inner tube 112. More specifically, the elbow is a right-angle elbow, and the right-angle elbows of the two adjacent inner tubes 112 are connected by a connecting tube. It can be understood that a sealing structure is provided between the H-shaped tube 13 and the inner tube 112, and a sealing structure is provided between the connection port of the elbow and the inner tube 112 and the connecting tube.

[0043] Preferably, the H-shaped tube 13 and the outer tube 111 are integrated into a single piece, so that all outer tubes 111 in a heat exchange module are integrated into one workpiece, which has good airtightness and is easy to install, thereby improving the efficiency of modular production.

[0044] In one embodiment of the present invention, a heat exchange module has a medium inlet 14, a medium outlet 15, a hydrogen inlet 16, and a hydrogen outlet 17. Of two adjacent heat exchange modules, the hydrogen outlet 17 of one heat exchange module is connected to the hydrogen inlet 16 of the other heat exchange module; the medium outlet 15 of one heat exchange module is connected to the medium inlet 14 of the other heat exchange module. Alternatively, the medium inlet 14 and medium outlet 15 of the two heat exchange modules are each connected to a medium circulation device. Thus, when multiple heat exchange modules are linked together to form a hydrogen heat exchanger, the hydrogen heat exchanger can have a single heat exchange medium inlet or multiple heat exchange medium inlets depending on the heat exchange requirements, providing greater flexibility.

[0045] In one embodiment of the present invention, several heat exchange modules 1 are spliced to form a heat exchange module, and several heat exchange modules constitute a skid-mounted heat exchanger group; adjacent heat exchange modules are connected by a positioning assembly 12. Preferably, the positioning assemblies 12 of adjacent heat exchange modules are connected by a mother component 122a and a child component 122b, so that multiple hydrogen heat exchangers in the skid-mounted hydrogen refueling station can be stacked and arranged in a concentrated manner, and the skid-mounted layout is simple.

[0046] Other structures and operations of the skid-mounted straight-tube-in-tube hydrogen heat exchanger according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0047] Throughout this specification, references to terms such as "embodiment" and "example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0048] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A skid-mounted straight tube-in-tube hydrogen heat exchanger, characterized in that: The heat exchange module comprises a plurality of heat exchange modules, wherein the plurality of heat exchange modules are arranged in a side-by-side manner and / or a stacked manner; The heat exchange module includes a plurality of sleeves and a plurality of positioning components, wherein the positioning components are provided with positioning holes, and the plurality of sleeves all pass through the positioning holes of the same positioning component, and the plurality of positioning components are arranged along the length direction of the sleeves; Two adjacent sleeves are connected, and the positioning assembly is provided with a connecting structure, and two adjacent groups of heat exchange modules are positioned by the connecting structure.

2. The skid-mounted straight tube-in-tube hydrogen heat exchanger according to claim 1, characterized in that: The connecting structure is located at the end and / or side of the positioning assembly, and the connecting structure is divided into a mother component and a child component; The mother component and the child component are respectively arranged at two opposite sides of the positioning component, or the mother component and the child component are respectively arranged at two opposite ends of the positioning component.

3. The skid-mounted straight tube-in-tube hydrogen heat exchanger according to claim 2, characterized in that: The mother component is provided with a limiting groove, and the end of the child component is inserted into the limiting groove.

4. The skid-mounted straight tube-in-tube hydrogen heat exchanger according to claim 1, 2 or 3, characterized in that: The positioning assembly includes two positioning blocks arranged opposite to each other, the sides of the positioning blocks are provided with positioning grooves, and the positioning grooves of the two positioning blocks are combined to form the positioning hole; The two positioning blocks are fixedly connected via a connecting piece.

5. The skid-mounted straight tube-in-tube hydrogen heat exchanger according to claim 1, characterized in that: Several of the sleeves include an outer tube and an inner tube passing through the outer tube. The outer tubes of adjacent sleeves are connected by an H-shaped tube, and the inner tubes of adjacent sleeves are connected by an elbow and a connecting tube after passing through the H-shaped tube.

6. The skid-mounted straight tube-in-tube hydrogen heat exchanger according to claim 5, characterized in that: The H-shaped tube and the outer tube are an integrated structure.

7. The skid-mounted straight tube-in-tube hydrogen heat exchanger according to claim 5, characterized in that: The heat exchange module has a medium inlet end, a medium outlet end, a hydrogen inlet end and a hydrogen outlet end; In the two adjacent heat exchange modules, the hydrogen outlet end of one heat exchange module is connected to the hydrogen inlet end of the other heat exchange module; the medium outlet end of one heat exchange module is connected to the medium inlet end of the other heat exchange module, or the medium inlet end and medium outlet end of the two heat exchange modules are respectively connected to the medium circulation equipment.

8. The skid-mounted straight tube-in-tube hydrogen heat exchanger according to claim 1, 2, 3 or 7, characterized in that: Several of the heat exchange modules are spliced together to form a heat exchange module, and several of the heat exchange modules constitute a skid-mounted heat exchanger group; Adjacent heat exchange modules are connected via the positioning assembly.

Images