Shell-and-tube hydrogen heat exchanger

Abstract

The utility model discloses a shell-and-tube structure for heat exchange of hydrogen, which is favorable for improving heat exchange efficiency and safety performance, the structure is named as a shell-and-tube hydrogen heat exchanger, hydrogen is input through a gas inlet in the shell-and-tube hydrogen heat exchanger, cooling liquid is input through a liquid inlet at the same time, and the heat exchange efficiency is improved. Cooling liquid enters the multiple heat exchange pipelines through the first heat exchange cavity, enters the first heat exchange cavity and the second heat exchange cavity through the multiple heat exchange pipelines and then flows into the second heat exchange cavity through the multiple heat exchange pipelines, meanwhile, the flow direction of hydrogen can be blocked by the multiple baffle plates, and the flow direction of the hydrogen can be blocked by the baffle plates. And hydrogen can be steered for multiple times in the two sets of heat exchange shells, and is in full contact with the heat exchange pipelines for heat exchange.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen heat exchange, in particular to a shell and tube type hydrogen heat exchanger. Background Art

[0002] In a hydrogen refueling station, the temperature of the hydrogen in the hydrogen source will increase after being pressurized by a compressor. If the high-temperature hydrogen is directly sent to the hydrogen refueling machine to refuel a fuel cell vehicle, there will be a safety hazard. Therefore, the pressurized hydrogen needs to be cooled through a heat exchanger before being sent to the hydrogen refueling machine. However, in actual use, the existing heat exchangers have a low thermal conductivity utilization rate and high energy consumption. After a certain period of heat exchange, due to the small amount of impurities in the heat exchange medium, they will adhere to the inner wall of the heat exchanger. After long-term use, multiple heat exchanges will be required to achieve the required heat exchange indicators, which is inefficient. When there is a lot of hydrogen in the heat exchange tube, it is easy to cause hydrogen accumulation, causing safety hazards. Utility Model Content

[0003] In order to achieve the above-mentioned purpose, the embodiment of the present invention provides a shell and tube type hydrogen heat exchanger, comprising

[0004] A supporting component, wherein the supporting component is fixedly arranged at the lower end of the heat exchanger body;

[0005] a heat exchange component, the heat exchange component being fixedly disposed on the upper end of the support component;

[0006] A filter component is fixedly arranged at the upper left end of the heat exchange component, wherein:

[0007] The support component can provide a fixing and installation space for the heat exchanger body and the heat exchange component, and the interior of the heat exchange component can be filtered by the filter component, while the hydrogen can be quickly cooled by the heat exchange component.

[0008] Furthermore, the supporting component includes:

[0009] Main body frames, with two sets of main body frames mirror-imaged and fixedly disposed at both ends of the heat exchanger body;

[0010] Docking plates, a plurality of the docking plates being fixedly arranged on both sides of the two sets of main frames in a mirror-image manner;

[0011] Placement holes, a plurality of the placement holes are opened inside the two groups of main body frames.

[0012] Furthermore, the heat exchange component includes:

[0013] Heat exchange shells, two groups of heat exchange shells are fixedly mounted on the upper ends of the two groups of main frames through the plurality of placement holes in a mirror image manner;

[0014] Heat exchange tube box 1, the heat exchange tube box 1 is fixedly arranged on the left side of the upper end of the heat exchange shell;

[0015] A second heat exchange tube box, the second heat exchange tube box being fixedly arranged on the left side of the lower end of the heat exchange shell;

[0016] A partition component, the partition component is fixedly arranged inside the two groups of heat exchange shells;

[0017] A fixing component, wherein the fixing component is fixedly disposed inside the two groups of heat exchange shells;

[0018] Heat exchange pipes, wherein a plurality of the heat exchange pipes are fixedly arranged inside the two groups of heat exchange shells;

[0019] A liquid inlet, the liquid inlet being fixedly arranged at an upper end of the heat exchange tube box;

[0020] A liquid outlet, the liquid outlet being fixedly arranged at the second lower end of the heat exchange tube box;

[0021] An air inlet, the air inlet being fixedly arranged at the upper right end of the heat exchange shell;

[0022] An air outlet, the air outlet being fixedly arranged at the lower end of the right side of the heat exchange shell;

[0023] A connecting pipe is fixedly arranged on the left sides of the two groups of heat exchange shells and is communicated with the two groups of heat exchange shells.

[0024] Furthermore, the partition member includes:

[0025] Partition plates, two groups of the partition plates are horizontally fixedly arranged inside the left sides of the first heat exchange tube box and the second heat exchange tube box;

[0026] The heat exchange chamber is separated by the partition plate and arranged at the upper end of the heat exchange tube box;

[0027] A lower heat exchange chamber, the lower heat exchange chamber is separated by the partition plate and arranged at a lower end of the heat exchange tube box;

[0028] The second upper heat exchange chamber is separated by the partition plate and arranged at the upper end of the second heat exchange tube box;

[0029] The second lower heat exchange chamber is separated by the partition plate and arranged at the lower end of the second heat exchange tube box;

[0030] Sealing plates, two groups of the sealing plates are fixedly arranged at the right ends of the two groups of the partition plates and the two groups of the sealing plates separate the left sides of the two groups of the heat exchange shells from the heat exchange tube box 1 and the heat exchange tube box 2.

[0031] Furthermore, the fixing component includes:

[0032] A fastening plate, wherein a plurality of the fastening plates are fixedly disposed in a mirror-image manner between the two groups of the heat exchange shells and a plurality of the heat exchange tube boxes 1 and 2;

[0033] Baffles, a plurality of the baffles passing through a plurality of the heat exchange pipes and fixedly arranged inside the two groups of the heat exchange shells;

[0034] A plurality of baffles are fixedly arranged alternately in upper and lower semi-arc shapes inside the two groups of heat exchange shells.

[0035] Furthermore, the filtering component includes:

[0036] a mounting ring movably disposed on an upper end of the liquid inlet;

[0037] A filter element mesh, the filter element mesh being fixedly disposed inside the mounting ring;

[0038] A flow guide pipe, the flow guide pipe is fixedly arranged at the lower end of the connecting pipe;

[0039] The lower end of the guide tube is arranged in an inverted bowl shape.

[0040] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0041] When the shell and tube hydrogen heat exchanger is in use, a worker inputs hydrogen through the air inlet and inputs coolant through the liquid inlet at the same time. The coolant enters the interior of the plurality of heat exchange pipes through the upper heat exchange chamber, enters the lower heat exchange chamber and the upper second heat exchange chamber through the plurality of heat exchange pipes, and then flows into the lower second heat exchange chamber through the plurality of heat exchange pipes. At the same time, the plurality of baffles can block the flow direction of the hydrogen, so that the hydrogen can turn multiple times inside the two groups of the heat exchange shells and fully contact with the plurality of the heat exchange pipes for heat exchange. The two groups of the heat exchange shells can effectively improve the working efficiency, and the filter element mesh movably provided inside the liquid inlet can effectively filter impurities in the coolant, thereby improving the heat exchange efficiency. A guide pipe is fixedly provided inside the connecting pipe to drain the internal hydrogen and prevent the accumulation of hydrogen from causing safety hazards. The arrangement of multiple groups of heat exchange pipes can fully exchange heat with the hydrogen, and the hydrogen after heat exchange can be discharged through the outlet pipe, thereby improving the heat exchange efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0043] Figure 1 Shows an axonometric view of the present invention;

[0044] Figure 2Shows an axial side expansion view of the utility model;

[0045] Figure 3 Shows a front view of the utility model;

[0046] Figure 4 Shown is a left side view of the present invention.

[0047] In the picture:

[0048] 1. Heat exchanger body;

[0049] 2. Support components; 21. Main frame; 22. Docking plate; 23. Placement hole;

[0050] 3. Heat exchange components; 31. Heat exchange shell; 32. Heat exchange tube box 1; 33. Heat exchange tube box 2;

[0051] 34. Heat exchange pipe; 35. Liquid inlet; 36. Liquid outlet; 37. Air inlet; 38. Air outlet;

[0052] 39. Connecting pipe;

[0053] 4. Filter component; 41. Mounting ring; 42. Filter element screen; 43. Flow guide tube;

[0054] 5. Partition component; 51. Partition plate; 52. Upper heat exchange chamber; 53. Lower heat exchange chamber;

[0055] 54. Upper heat exchange chamber (2); 55. Lower heat exchange chamber (2); 56. Sealing plate;

[0056] 6. Fixed parts; 61. Fastening plate; 62. Baffle. DETAILED DESCRIPTION

[0057] Now the utility model is further described in detail with reference to the accompanying drawings. Figure 1 , Figure 1 Shows an axonometric view of the present invention; see Figure 2 , Figure 2 Shows the axial side expansion diagram of the utility model; please refer to Figure 3 , Figure 3 Shows a front view of the present invention; see Figure 4 , Figure 4 Shows a left view of the utility model; Figure 1-4 As shown, a shell and tube type hydrogen heat exchanger includes

[0058] A support component 2, wherein the support component 2 is fixedly arranged at the lower end of the heat exchanger body 1;

[0059] a heat exchange component 3, wherein the heat exchange component 3 is fixedly disposed on the upper end of the support component 2;

[0060] The filter component 4 is fixedly arranged at the upper left end of the heat exchange component 3. The support component 2 can provide space for fixing and installing the heat exchanger body 1 and the heat exchange component 3. The inside of the heat exchange component 3 is filtered through the filter component 4, and the hydrogen is quickly cooled through the heat exchange component 3.

[0061] Optionally, the supporting component 2 includes:

[0062] Main frame 21, two sets of main frame 21 are fixedly arranged at both ends of the heat exchanger body 1 in a mirror-image manner;

[0063] Docking plates 22, wherein a plurality of the docking plates 22 are fixedly disposed on both sides of the two sets of the main frames 21 in a mirror-image manner;

[0064] Placement holes 23, a plurality of the placement holes 23 are opened inside the two groups of the main frames 21, and the main frames 21 can provide space for fixing and installing the heat exchange component 3, and the heat exchange component 3 is fixed and installed through the plurality of the placement holes 23 and the plurality of the docking plates 22 to prevent it from falling off;

[0065] When the shell and tube type hydrogen heat exchanger is in use, the staff inputs hydrogen through the air inlet 37 and inputs coolant through the liquid inlet 35. The coolant enters the interior of the plurality of heat exchange pipes 34 through the upper heat exchange cavity 52, enters the lower heat exchange cavity 53 and the upper second heat exchange cavity 54 through the plurality of heat exchange pipes 34, and then flows into the lower second heat exchange cavity 55 through the plurality of heat exchange pipes 34. At the same time, the plurality of baffles 62 can block the flow direction of hydrogen, so that the hydrogen can turn multiple times inside the two groups of heat exchange shells 31 and interact with the plurality of The heat exchange pipes 34 are in full contact for heat exchange. The arrangement of the two groups of heat exchange shells 31 can effectively improve work efficiency, and the filter element net 42 movably arranged inside the liquid inlet 35 can effectively filter impurities in the coolant and improve heat exchange efficiency. A guide pipe 43 is fixedly arranged inside the connecting pipe 39 to drain the internal hydrogen and prevent hydrogen accumulation from causing safety hazards. The arrangement of multiple groups of heat exchange pipes 34 can fully exchange heat with hydrogen, and the hydrogen after heat exchange can be discharged through the outlet 38, thereby improving heat exchange efficiency and safety.

[0066] Optionally, the heat exchange component 3 includes:

[0067] Heat exchange housings 31, two groups of heat exchange housings 31 pass through the plurality of placement holes 23 and are fixedly mounted on the upper ends of the two groups of main frames 21 in a mirror-image manner;

[0068] Heat exchange tube box 1 32, the heat exchange tube box 1 32 is fixedly arranged on the left side of the upper end of the heat exchange shell 31;

[0069] The second heat exchange tube box 33 is fixedly arranged on the left side of the lower end of the heat exchange shell 31;

[0070] A partition member 5, the partition member 5 is fixedly disposed inside the two groups of heat exchange shells 31;

[0071] A fixing component 6, wherein the fixing component 6 is fixedly disposed inside the two sets of heat exchange shells 31;

[0072] Heat exchange pipes 34, wherein a plurality of heat exchange pipes 34 are fixedly disposed inside the two groups of heat exchange shells 31;

[0073] A liquid inlet 35, the liquid inlet 35 is fixedly arranged at the upper end of the heat exchange tube box 1 32;

[0074] A liquid outlet 36, the liquid outlet 36 is fixedly arranged at the lower end of the second heat exchange tube box 33;

[0075] An air inlet 37, the air inlet 37 being fixedly disposed at the upper right end of the heat exchange shell 31;

[0076] An air outlet 38 is fixedly provided at the lower right end of the heat exchange shell 31;

[0077] The connecting pipe 39 is fixedly arranged on the left side of the two groups of heat exchange shells 31 and is connected to the two groups of heat exchange shells 31. The two groups of heat exchange shells 31 can provide a sealed space for hydrogen, and heat exchange is performed through the circulation of coolant inside the heat exchange pipes 34. The coolant enters the heat exchange tube box 1 32 through the liquid inlet 35, passes through the heat exchange pipe 34 and the connecting pipe 39, and enters the heat exchange tube box 2 33, thereby fully exchanging heat for the hydrogen inside the two groups of heat exchange shells 31.

[0078] Optionally, the partition member 5 includes:

[0079] Partition plates 51, two groups of the partition plates 51 are horizontally fixedly disposed inside the left sides of the heat exchange tube box 1 32 and the heat exchange tube box 2 33;

[0080] The heat exchange chamber upper 52 is separated by the partition plate 51 and arranged at the upper end of the heat exchange tube box 32;

[0081] A heat exchange chamber 53 is provided below the heat exchange chamber, and the heat exchange chamber 53 is separated by the partition plate 51 and arranged at the lower end of the heat exchange tube box 32;

[0082] The second upper heat exchange chamber 54 is separated by the partition plate 51 and is disposed at the upper end of the second heat exchange tube box 33;

[0083] The second lower heat exchange chamber 55 is separated by the partition plate 51 and is disposed at the lower end of the second heat exchange tube box 33;

[0084] The sealing plates 56 are fixedly arranged at the right ends of the two groups of partition plates 51, and the two groups of sealing plates 56 separate the left sides of the two groups of heat exchange shells 31 from the heat exchange tube box 1 32 and the heat exchange tube box 2 33. The two groups of sealing plates 56 form a sealed space between the hydrogen inside the two groups of heat exchange shells 31 and the heat exchange tube box 1 32 and the heat exchange tube box 2 33, and no direct contact is generated.

[0085] Optionally, the fixing component 6 includes:

[0086] Fastening plates 61, wherein a plurality of the fastening plates 61 are fixedly disposed in a mirrored manner between the two groups of the heat exchange shells 31 and a plurality of the heat exchange tube boxes 1 32 and the heat exchange tube boxes 2 33;

[0087] Baffles 62, a plurality of the baffles 62 pass through a plurality of the heat exchange pipes 34 and are fixedly disposed inside the two groups of the heat exchange shells 31;

[0088] Several of the baffles 62 are fixedly arranged alternately in upper and lower semi-arc shapes inside the two groups of heat exchange shells 31. Several of the baffles 62 can block the flow of hydrogen, so that the hydrogen can turn multiple times inside the two groups of heat exchange shells 31 and fully contact with the several heat exchange pipes 34 for heat exchange.

[0089] Optionally, the filtering component 4 includes:

[0090] A mounting ring 41 movably disposed on the upper end of the liquid inlet 35 ;

[0091] A filter element mesh 42 , the filter element mesh 42 being fixedly disposed inside the mounting ring 41 ;

[0092] A flow guide pipe 43, the flow guide pipe 43 is fixedly arranged at the lower end of the connecting pipe 39;

[0093] The lower end of the guide tube 43 is in an inverted bowl shape, and the mounting ring 41 can provide a space for fixing and installing the filter element 42, and can filter impurities in the coolant. At the same time, the guide tube 43 can drain the internal hydrogen to prevent hydrogen accumulation from causing safety hazards.

[0094] Working principle: When using the shell and tube hydrogen heat exchanger, in the first step, the staff can assemble the two sets of the main frames 21 and the plurality of docking plates 22, so that the two sets of the heat exchange shells 31 pass through the plurality of placement holes 23 for fixed assembly. In the second step, the mounting ring 41 and the filter element net 42 are placed inside the liquid inlet 35, and hydrogen is input through the air inlet 37. At the same time, coolant is input through the liquid inlet 35. The coolant enters the plurality of heat exchange pipes 34 through the heat exchange cavity 52, and enters the heat exchange through the plurality of heat exchange pipes 34. The hydrogen flows into the lower chamber 53 and the upper second heat exchange chamber 54, and then flows into the lower second heat exchange chamber 55 through the plurality of heat exchange pipes 34. In the third step, the plurality of baffles 62 arranged inside the two groups of heat exchange shells 31 can block the flow direction of the hydrogen, so that the hydrogen can turn multiple times inside the two groups of heat exchange shells 31 and fully contact with the plurality of heat exchange pipes 34 for heat exchange. A guide pipe 43 is fixedly provided inside the connecting pipe 39 to drain the internal hydrogen. In the fourth step, the hydrogen after heat exchange can be discharged through the outlet 38, thereby improving the heat exchange efficiency and safety.

Claims

1. A shell and tube hydrogen heat exchanger, characterized in that: include A support component (2), the support component (2) being fixedly arranged at the lower end of the heat exchanger body (1); A heat exchange component (3), the heat exchange component (3) being fixedly arranged on the upper end of the support component (2); A filter component (4) is fixedly arranged on the upper left side of the heat exchange component (3), wherein: The support component (2) can provide a space for fixing and installing the heat exchanger body (1) and the heat exchange component (3), and the interior of the heat exchange component (3) is filtered through the filter component (4), while the hydrogen is quickly cooled through the heat exchange component (3).

2. The shell and tube hydrogen heat exchanger according to claim 1, characterized in that: The supporting component (2) comprises: Main body frames (21), two sets of the main body frames (21) are fixedly arranged at both ends of the heat exchanger body (1) in a mirror-image manner; Docking plates (22), wherein a plurality of the docking plates (22) are fixedly arranged in a mirror image on both sides of the two sets of main frames (21); Placement holes (23), a plurality of the placement holes (23) are opened inside the two groups of the main frames (21).

3. The shell and tube hydrogen heat exchanger according to claim 2, characterized in that: The heat exchange component (3) comprises: Heat exchange shells (31), two groups of heat exchange shells (31) pass through the plurality of placement holes (23) and are fixedly mounted on the upper ends of the two groups of main frames (21) in a mirror-image manner; Heat exchange tube box one (32), the heat exchange tube box one (32) is fixedly arranged on the left side of the upper end of the heat exchange shell (31); Heat exchange tube box 2 (33), the heat exchange tube box 2 (33) is fixedly arranged on the left side of the lower end of the heat exchange shell (31); A partition component (5), the partition component (5) being fixedly disposed inside the two groups of heat exchange shells (31); A fixing component (6), the fixing component (6) being fixedly arranged inside the two groups of heat exchange shells (31); Heat exchange pipes (34), wherein a plurality of the heat exchange pipes (34) are fixedly arranged inside the two groups of heat exchange shells (31); A liquid inlet (35), the liquid inlet (35) being fixedly arranged at the upper end of the heat exchange tube box (32); A liquid outlet (36), the liquid outlet (36) being fixedly arranged at the lower end of the second heat exchange tube box (33); an air inlet (37), the air inlet (37) being fixedly arranged at the upper right end of the heat exchange shell (31); An air outlet (38), the air outlet (38) being fixedly arranged at the lower end of the right side of the heat exchange shell (31); A connecting pipe (39), wherein the connecting pipe (39) is fixedly arranged on the left side of the two groups of heat exchange shells (31) and the connecting pipe (39) is connected to the two groups of heat exchange shells (31).

4. The shell and tube hydrogen heat exchanger according to claim 3, characterized in that: The partition component (5) comprises: Partition plates (51), two groups of the partition plates (51) are horizontally fixedly arranged inside the left sides of the heat exchange tube box 1 (32) and the heat exchange tube box 2 (33); A heat exchange chamber upper (52), the heat exchange chamber upper (52) is separated by the partition plate (51) and arranged at the upper end of the heat exchange tube box (32); A lower heat exchange chamber (53), the lower heat exchange chamber (53) is separated by the partition plate (51) and arranged at the lower end of the heat exchange tube box (32); The second upper heat exchange chamber (54), the second upper heat exchange chamber (54) is separated by the partition plate (51) and arranged at the upper end of the second heat exchange tube box (33); The second lower heat exchange chamber (55), the second lower heat exchange chamber (55) is separated by the partition plate (51) and arranged at the lower end of the second heat exchange tube box (33); Sealing plates (56), two groups of the sealing plates (56) are fixedly arranged at the right ends of the two groups of the partition plates (51) and the two groups of the sealing plates (56) separate the left sides of the two groups of the heat exchange shells (31) from the heat exchange tube box 1 (32) and the heat exchange tube box 2 (33).

5. The shell and tube type hydrogen heat exchanger according to claim 4, characterized in that: The fixing component (6) comprises: A fastening plate (61), wherein a plurality of the fastening plates (61) are fixedly disposed in a mirror-image manner between two groups of the heat exchange shells (31) and a plurality of the heat exchange tube boxes 1 (32) and the heat exchange tube boxes 2 (33); Baffles (62), a plurality of the baffles (62) passing through a plurality of the heat exchange pipes (34) and fixedly arranged inside the two groups of heat exchange shells (31); A plurality of the baffles (62) are alternately fixedly arranged in upper and lower semi-arc shapes inside the two groups of heat exchange shells (31).

6. The shell and tube type hydrogen heat exchanger according to claim 5, characterized in that: The filtering component (4) comprises: A mounting ring (41), the mounting ring (41) being movably disposed on the upper end of the liquid inlet (35); A filter element mesh (42), the filter element mesh (42) being fixedly arranged inside the mounting ring (41); A flow guide pipe (43), the flow guide pipe (43) is fixedly arranged at the lower end of the connecting pipe (39); The lower end of the flow guide tube (43) is arranged in an inverted bowl shape.

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