CN218764788U - Heat exchanger - Google Patents

Abstract

The utility model discloses a heat exchanger, include: the shell is internally provided with a first gas flow channel, a second gas flow channel, a gas heat exchange medium flow channel and a liquid heat exchange medium flow channel, wherein the first gas flow channel and the second gas flow channel are distributed in parallel at intervals and have opposite gas flow directions, and the gas heat exchange medium flow channel and the liquid heat exchange medium flow channel are suitable for sequentially exchanging heat with the first gas flow channel and the second gas flow channel respectively. The utility model discloses a heat exchanger, this heat exchanger are provided with first gas runner, the gaseous runner of second, gaseous heat transfer medium runner and liquid heat transfer medium runner, integrate this four kinds of structures and set up, arrange and can not only satisfy the function to gaseous heating, heat transfer, have reduced the volume of heat exchanger system simultaneously, have alleviateed total weight, have improved in use and have caused the big problem of system load because of the radiating efficiency is low to purchasing cost has also been reduced.

Description

Heat exchanger

Technical Field

The utility model belongs to the technical field of the heat transfer technique and specifically relates to a heat exchanger is related to.

Background

With the increasingly wide application of heat exchangers, in a traditional mode fuel cell system, air and hydrogen need to be added, but an intercooler and a heat exchanger need to be used for cooling the air and heating the hydrogen respectively when the air and the hydrogen are added, the heat exchanger in the mode is large in size, heavy in weight and low in heat dissipation efficiency, so that the integration space of the system is increased, the mass power density is reduced, the system load and the cost are increased, certain potential safety hazards can be generated, waste gas in the fuel cell system cannot be reasonably and effectively reused, energy waste is caused, and an improved space exists.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide a heat exchanger, which can realize the integration of the internal space of the heat exchanger, reduce the weight of the heat exchanger, and improve the heat exchange rate of the system, thereby reducing the potential safety hazard generated by the large volume during the use, and simultaneously facilitating the recycling of the exhaust gas.

According to the utility model discloses heat exchanger includes: the shell is internally provided with a first gas flow channel, a second gas flow channel, a gas heat exchange medium flow channel and a liquid heat exchange medium flow channel, wherein the first gas flow channel and the second gas flow channel are distributed in parallel at intervals, and the gas heat exchange medium flow channel and the liquid heat exchange medium flow channel are suitable for sequentially exchanging heat with the first gas flow channel and the second gas flow channel respectively.

According to the utility model discloses heat exchanger, this heat exchanger can be integrated with first gas runner, the gaseous runner of second, gaseous heat transfer medium runner and liquid heat transfer medium runner, and the second gas runner of flowing through after the gaseous medium, liquid medium pass through first gas runner heat transfer can heat, the heat transfer the second is gaseous, and can realize waste gas and recycle, from this, integrate and set up the volume size that can reduce heat exchanger, weight reduction is favorable to promoting safety and the economic nature that heat exchanger used.

According to the utility model discloses heat exchanger in some embodiments in the casing, the gaseous flow direction in the first gas runner the gaseous flow direction in the second gas runner all with the gaseous medium flow direction cross distribution of gaseous heat transfer medium runner, just gaseous flow direction in the first gas runner gaseous flow direction in the second gas runner all with the liquid medium flow direction cross distribution of liquid heat transfer medium runner.

According to the utility model discloses heat exchanger, gaseous heat transfer medium runner has gaseous medium entry and gaseous medium export, liquid heat transfer medium runner is equipped with liquid medium entry and liquid medium export, gaseous medium entry with the liquid medium entry is located same one side of casing, gaseous medium export with the liquid medium export is located same one side of casing.

According to the utility model discloses some embodiments's heat exchanger, the liquid heat transfer medium runner includes first class section and second class section and intermediate flow section, first class section with the second class section passes through the intermediate flow section intercommunication, first class section centers on first gas runner distributes, the second class section centers on the second gas runner distributes, the intermediate flow section is located first gas runner with between the second gas runner, first class section with the second class section is formed with respectively the liquid medium entry with the liquid medium export.

According to some embodiments of the present invention, the first flow path and the second flow path are formed with a plurality of sub-flow paths, and the flow direction of the sub-flow paths is the same and is perpendicular to the flow direction of the first gas flow path and the second gas flow path.

According to some embodiments of the present invention, the heat exchanger includes a first main plate, a second main plate, and a side wall, wherein the first main plate and the second main plate are distributed opposite to each other and define an inner space, the side wall is connected between the first main plate and the second main plate and is used for circumferentially sealing the inner space, and the liquid medium inlet and the liquid medium outlet are both located on the first main plate or the second main plate; the gas medium inlet and the gas medium outlet are respectively positioned on two sides of the side enclosing plate along the first direction.

According to the utility model discloses heat exchanger of some embodiments, liquid heat transfer medium runner with first gas runner or the regional area of heat transfer of second gas runner is greater than gas heat transfer medium runner with first gas runner or the regional area of heat transfer of second gas runner.

According to some embodiments of the heat exchanger of the present invention, the first gas flow channel is provided with a first gas inlet and a first gas outlet, and the second gas flow channel is provided with a second gas inlet and a second gas outlet; wherein a gas flow direction from the first gas inlet to the first gas outlet is parallel and opposite to a gas flow direction from the second gas inlet to the second gas outlet.

According to some embodiments of the present invention, the heat exchanger includes a first main plate, a second main plate, and a side wall plate, wherein the first main plate and the second main plate are distributed opposite to each other and define an inner space, and the side wall plate is connected between the first main plate and the second main plate and is used for circumferentially sealing the inner space; wherein the first gas inlet and the second gas outlet are located at one side edge of the side enclosing plate along the second direction, and the first gas outlet and the second gas inlet are located at the other side edge of the side enclosing plate along the second direction.

According to the utility model discloses some embodiments's heat exchanger, heat exchanger is equipped with a plurality of installation stabilizer blade, a plurality of the installation stabilizer blade is in spaced apart distribution on heat exchanger.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a heat exchanger according to an embodiment of the present invention;

fig. 2 is an operational schematic diagram of a heat exchanger according to an embodiment of the present invention.

Reference numerals:

the heat exchanger 100 is provided with a heat exchanger,

the housing (1) is provided with a plurality of grooves,

a first gas flow channel 11, a first gas inlet 111, a first gas outlet 112,

a second gas flow channel 12, a second gas inlet 121, a second gas outlet 122,

gas heat exchange medium flow channels 131, gas medium inlet 1311, gas medium outlet 1312, liquid heat exchange medium flow channels 132, first flow section 1321, second flow section 1322, intermediate flow section 1323, liquid medium inlet 1324, liquid medium outlet 1325,

mounting feet 14, mounting holes 141, a first main plate 15, a second main plate 16 and a side wall plate 17.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

The heat exchanger 100 according to the embodiment of the present invention is described below with reference to fig. 1-2, the heat exchanger 100 is provided with a housing 1, a first gas flow passage 11, a second gas flow passage 12, a gas heat exchange medium flow passage 131 and a liquid heat exchange medium flow passage 132, and the five structures are integrated and arranged to satisfy the functions of heating and heat exchange of gas, and reduce the volume of the heat exchanger 100 system, reduce the total weight, and improve the problem of large system load caused by low heat dissipation efficiency in use, thereby reducing the procurement cost.

As shown in fig. 1 to 2, a heat exchanger 100 according to an embodiment of the present invention includes: the shell comprises a shell 1, wherein a first gas flow channel 11, a second gas flow channel 12, a gas heat exchange medium flow channel 131 and a liquid heat exchange medium flow channel 132 are formed in the shell 1, the first gas flow channel 11 and the second gas flow channel 12 are distributed in parallel at intervals, and the gas heat exchange medium flow channel 131 and the liquid heat exchange medium flow channel 132 are suitable for respectively exchanging heat with the first gas flow channel 11 and the second gas flow channel 12 in sequence. It should be noted that the first gas channel 11 and the second gas channel 12 can respectively circulate two different types of gases, such as air and hydrogen as one of the two gases, or other types of gases.

Specifically, as shown in fig. 2, the first gas flow channel 11 may be used as an air flow channel, the second gas flow channel 12 may be used as a hydrogen flow channel, the gas heat exchange medium flow channel 131 and the liquid heat exchange medium flow channel 132 are respectively distributed in a staggered manner with the first gas flow channel 11 and the second gas flow channel 12, the gas heat exchange medium in the gas heat exchange medium flow channel 131 flows from the area where the first gas flow channel 11 is located to the area where the second gas flow channel 12 is located, and simultaneously, the liquid medium in the liquid heat exchange medium flow channel 132 may flow from the area where the first gas flow channel 11 is located to the area where the second gas flow channel 12 is located. In practical use, gas may be introduced into the gas heat exchange medium channel 131, and liquid may be introduced into the liquid heat exchange medium channel 132, so that the introduced gas and liquid can respectively perform heat exchange on the gas in the first gas channel 11 and/or the second gas channel 12 to heat or cool the gas.

Therefore, when the first gas flow channel 11 is opened and high-temperature air is introduced, the gas and liquid in the gas heat exchange medium flow channel 131 and the liquid heat exchange medium flow channel 132 can pass through the region where the first gas flow channel 11 is located, so that the heat of the air in the first gas flow channel 11 is absorbed, after the temperature of the gas and liquid rises, the gas and liquid can further flow through the region where the second gas flow channel 12 is located, and the hydrogen in the second gas flow channel 12 is heated by the heat carried in the gas and liquid, so that the temperature of the hydrogen in the second gas flow channel 12 rises. In other words, with first gas runner 11, the parallel spaced apart setting of second gas runner 12, carry the heat of air respectively through gas and liquid in gas heat transfer medium runner 131 and the liquid heat transfer medium runner 132 and heat hydrogen, can make air and hydrogen carry out heat exchange, this setting need not set up two heat transfer structures respectively to air and hydrogen, realizes the design of integrating, and reducible system heat gathering, reduces the load of system promptly, improves radiating efficiency and security.

And, it should be noted that, during actual operation, the gas medium may also be separately introduced into the two gas flow channels, so that the gas heat exchange medium flow channel 131 and the liquid heat exchange medium flow channel 132 separately heat or cool the gas medium, and the practicability is better. The gas heat exchange medium flow channel 131 can be communicated with tail exhaust in the fuel cell system, so that high-temperature gas at the tail exhaust can enter the gas heat exchange medium flow channel 131, and then the gas in the two gas flow channels is heated through the gas heat exchange medium flow channel 131, thereby realizing waste gas recycling and improving the energy utilization rate.

According to the utility model discloses heat exchanger 100, this heat exchanger 100 can be integrated with first gas flow channel 11, second gas flow channel 12, gaseous heat transfer medium runner 131 and liquid heat transfer medium runner 132, when gaseous medium, liquid medium flows through second gas flow channel 12 after the heat transfer of first gas flow channel 11, through gaseous medium, liquid medium realizes the heat exchange of two kinds of different gases, and simultaneously, gaseous heat transfer medium runner 131 can communicate with fuel cell system's tail exhaust, realizes that waste gas energy recycles. Therefore, the integrated arrangement can reduce the volume and weight of the heat exchanger 100, and is beneficial to improving the use safety and economy of the heat exchanger 100.

In some embodiments, in the housing 1, the gas flow direction in the first gas flow channel 11 and the gas flow direction in the second gas flow channel 12 are distributed to intersect with the gas medium flow direction of the gas heat exchange medium flow channel 131, and the gas flow direction in the first gas flow channel 11 and the gas flow direction in the second gas flow channel 12 are distributed to intersect with the liquid medium flow direction of the liquid heat exchange medium flow channel 132.

Specifically, as shown in fig. 2, the gas flow direction in the first gas flow channel 11 and the gas flow direction in the second gas flow channel 12 are respectively set to be distributed in a manner of intersecting with the gas medium flow direction of the gas heat exchange medium flow channel 131, and are respectively set to be distributed in a manner of intersecting with the liquid medium flow direction of the liquid heat exchange medium flow channel 132, so that the gas medium and the liquid medium can absorb heat of the gas in the first gas flow channel 11 when flowing around the first gas flow channel 11, and the gas medium and the liquid medium can release their own heat to the gas in the second gas flow channel 12 when flowing around the second gas flow channel 12, thereby respectively realizing the heat exchange function of the gas medium and the liquid medium.

In some embodiments, the gas heat exchange medium flow channel 131 has a gas medium inlet 1311 and a gas medium outlet 1312, the liquid heat exchange medium flow channel 132 is provided with a liquid medium inlet 1324 and a liquid medium outlet 1325, the gas medium inlet 1311 and the liquid medium inlet 1324 are located on the same side of the shell 1, and the gas medium outlet 1312 and the liquid medium outlet 1325 are located on the same side of the shell 1.

As shown in fig. 2, the gas heat exchange medium channel 131 may be an exhaust gas channel, a gas medium inlet 1311 may be disposed above the gas heat exchange medium channel 131, and a gas medium outlet 1312 may be disposed below the gas heat exchange medium channel 131, wherein the gas heat exchange medium channel 131, the first gas channel 11, and the second gas channel 12 are distributed in a staggered manner. When the gas medium inlet 1311 is filled with the exhaust gas, the exhaust gas may sequentially flow through the first gas flow passage 11 and the second gas flow passage 12 to exchange heat with the gas in the first gas flow passage 11 and the second gas flow passage 12, respectively. The liquid heat exchange medium flow channel 132 is used for flowing a liquid medium, the liquid medium may be water, a liquid medium inlet 1324 may be disposed above the liquid heat exchange medium flow channel 132, and a liquid medium outlet 1325 may be disposed below the liquid heat exchange medium flow channel 132, wherein the liquid heat exchange medium flow channel 132 is also distributed in a staggered manner with the first gas flow channel 11 and the second gas flow channel 12, when the liquid medium inlet 1324 is filled with water, the water may sequentially flow through the first gas flow channel 11 and the second gas flow channel 12, and heat exchange may be performed on the gas in the first gas flow channel 11 and the gas in the second gas flow channel 12, respectively. Wherein, waste gas has embodied waste gas and has recycled as heat transfer medium. The structure is simple and clear, and the heat exchange function between the gas medium and the liquid medium is realized.

The gas medium inlet 1311 and the liquid medium inlet 1324 are located above the casing 1, the gas medium outlet 1312 and the liquid medium outlet 1325 are located below the casing 1, and as indicated by arrows in fig. 2, the gas heat exchange medium flow passage 131 and the liquid heat exchange medium flow passage 132 are both in the top-to-bottom direction. And liquid medium inlet 1324 and liquid medium outlet 1325 set up on the right side of casing 1, set up and make things convenient for later stage operating personnel to work in the equidirectional in the homonymy, save the beat, improve work efficiency, and also convenient maintenance. Meanwhile, the liquid heat exchange medium flow channel 132 and the gas heat exchange medium flow channel 131 are distributed at intervals, so that the heat accumulation of the system can be reduced, namely, the load of the system is reduced, and the heat dissipation efficiency and the safety are improved.

In some embodiments, liquid heat exchange medium flow passages 132 include first and second flow segments 1321, 1322 and intermediate flow segments 1323, first and second flow segments 1321, 1322 being in communication through intermediate flow segment 1323, first flow segment 1321 being distributed around first gas flow passage 11, second flow segment 1322 being distributed around second gas flow passage 12, intermediate flow segment 1323 being located between first and second gas flow passages 11, 12, first and second flow segments 1321, 1322 being formed with a liquid medium inlet 1324 and a liquid medium outlet 1325, respectively.

Thus, as shown in fig. 2, the first flow segment 1321 of the liquid heat exchange medium flow passage 132 is disposed at the upper portion, the second flow segment 1322 is disposed at the lower portion, i.e., in the direction from top to bottom, and the intermediate flow segment 1323 may be disposed at the left side as a liquid medium flow path. The first flow segments 1321 are distributed around the first gas flow channels 11 and the second flow segments 1322 are distributed around the second gas flow channels 12, which are communicated through the intermediate flow segments 1323 to form one complete flow channel 132 for the liquid heat exchange medium. In practical use, when liquid flows into and fills the first flow section 1321 from the upper liquid medium inlet 1324, and absorbs heat of air in the first gas flow channel 11, the liquid flows to the second flow section 1322 through the channel on the left side of the intermediate flow section 1323, the absorbed heat is transferred to hydrogen in the second gas flow channel 12, and after heat exchange is completed, the liquid flows out of the liquid medium outlet 1325.

In addition, a sealing structure or a stop valve can be arranged at the position where the first flow section 1321 is connected with the intermediate flow section 1323, so that liquid can not flow out in the heat absorption process of the first flow section 1321, the liquid medium can fully absorb heat, and after the heat absorption is finished, the sealing structure or the valve is opened; similarly, a sealing or a stop valve may be provided at the intermediate flow section 1323 connecting the second flow section 1322 to facilitate heat release of the liquid medium at the second flow section 1322 by sealing or closing the valve after the liquid medium enters the second flow section 1322 and fills. The arrangement is vertically arranged, so that the structure is simple, economic and reliable.

In some embodiments, the first flow segment 1321 and the second flow segment 1322 are symmetrically distributed on both sides of the intermediate flow segment 1323, as shown in fig. 2, that is, the first flow segment 1321 and the second flow segment 1322 are symmetrically distributed with respect to the intermediate flow segment 1323, and the first flow segment 1321 and the second flow segment 1322 are symmetrically distributed with respect to the first gas flow channel 11 and the second gas flow channel 12, respectively, so that the symmetrical design is simple and clear, the service function can be satisfied, the post-construction and maintenance are convenient, and the overall appearance is relatively regular.

In some embodiments, a plurality of sub-flow paths are formed in the first flow segment 1321 and the second flow segment 1322, and the flow directions of the plurality of sub-flow paths are the same and are perpendicular to the flow directions of the first gas flow channel 11 and the second gas flow channel 12.

Specifically, as shown in fig. 2, a plurality of sub-flow paths are formed in the first flow segment 1321, and the directions of the plurality of sub-flow paths are uniform from top to bottom, and a plurality of sub-flow paths are also formed in the second flow segment 1322, and the directions of the plurality of sub-flow paths are uniform from top to bottom, so that the flow rate of the liquid medium can be increased, and the extending direction of the first gas flow path 11 and the extending direction of the second gas flow path 12 are both left and right directions, so that the flow directions of the first flow segment 1321 and the second flow segment 1322 are both perpendicular to the flow directions of the first gas flow path 11 and the second gas flow path 12, and the liquid medium can rapidly enter the second flow segment 1322 after absorbing heat in the first flow segment 1321, thereby completing the heat exchange between the first gas flow path 11 and the second gas flow path 12.

In some embodiments, the casing 1 includes a first main plate 15, a second main plate 16 and a side wall 17, the first main plate 15 and the second main plate 16 are distributed oppositely to define an inner space, the side wall 17 is connected between the first main plate 15 and the second main plate 16 and is used for circumferentially sealing the inner space, that is, the first main plate 15 and the second main plate 16 can be distributed oppositely along the front-back direction of the casing, that is, can be located on the front side or the back side of the casing, and the first main plate 15 and the second main plate 16 jointly define the inner space, the side wall 17 is connected between the first main plate 15 and the second main plate 16, and the side wall 17 is located on the outermost side and can circumferentially seal the inner space, so that the first gas flow channel 11, the second gas flow channel 12, the gas heat exchange medium flow channel 131 and the liquid heat exchange medium flow channel 132 can be integrally disposed in the inner space of the casing 1, thereby facilitating heat exchange between gases. Liquid medium inlet 1324 and liquid medium outlet 1325 are both located on first motherboard 15 or second motherboard 16; wherein the gas medium inlet 1311 and the gas medium outlet 1312 are respectively located on both sides of the side enclosing plate 17 in the first direction.

Specifically, as shown in fig. 1, the first main board 15 may be located on the front side of the housing, the second main board 16 may be located on the rear side of the housing, the first main board 15 and the second main board 16 jointly define an internal space, the side wall 17 is located on the outermost side, the internal space may be circumferentially enclosed, the side wall 17 is supported and connected between the first main board 15 and the second main board 16, the side wall 17 is arranged in a left-right symmetrical manner with respect to the center line of the first main board 15, and the arrangement enables the overall structure of the housing 1 to be symmetrical. The liquid medium inlet 1324 and the liquid medium outlet 1325 as shown in fig. 1 are located on the first main plate 15, that is, the liquid medium flows in and out on the front side of the housing 1, and are arranged on the same side of the housing 1, so that the operation and maintenance are convenient; the gas medium inlet 1311 and the gas medium outlet 1312 are provided outside the side gusset 17, and the gas medium inlet 1311 and the gas medium outlet 1312 are respectively located at the upper and lower portions of the side gusset 17 in the up-down direction. So set up, simple structure, clear, convenient maintenance.

In some embodiments, the area of the heat exchange area of the liquid heat exchange medium flow channel 132 and the first gas flow channel 11 or the second gas flow channel 12 is larger than the area of the heat exchange area of the gas heat exchange medium flow channel 131 and the first gas flow channel 11 or the second gas flow channel 12.

Specifically, as shown in fig. 2, the liquid heat exchange medium channels 132 are distributed at the outermost sides, wrap the first gas channels 11 and the second gas channels 12, and are symmetrically distributed with respect to the first gas channels 11 and the second gas channels 12, and the gas heat exchange medium channels 131 are distributed at the center, and are distributed to intersect with the first gas channels 11 and the second gas channels 12. The heat transfer of the liquid medium is greater than that of the gas medium, the liquid heat exchange medium flow channel 132 is provided with a large-area heat exchange area, and the gas heat exchange medium flow channel 131 is provided with a small-area heat exchange area, wherein the overall structure of the first gas flow channel 11 and the second gas flow channel 12 is also the same, that is, when gas is introduced into the gas flow channels with the same volume and structure, the area of the liquid heat exchange medium flow channel 132 is greater than that of the gas heat exchange medium flow channel 131, so that the heat exchange efficiency can be improved.

Therefore, the arrangement structure is compact and reasonable in distribution, and the heat exchange efficiency of the system can be improved.

In some embodiments, as shown in fig. 2, the gas heat exchange medium flow channel 131 is located in the middle region of the heat exchanger in the extending direction of the first gas flow channel 11.

Specifically, as shown in fig. 2, the extending direction of the gas heat exchange medium flow channel 131 passes through the extending direction of the first gas flow channel 11 and the extending direction of the second gas flow channel 12, that is, in the extending direction of the first gas flow channel 11 and the second gas flow channel 12, the gas heat exchange medium flow channel 131 is located in the middle region of the heat exchanger, so that the gas heat exchange medium flow channel 131 is surrounded by the first gas flow channel 11 and the second gas flow channel 12, which is favorable for the gas in the gas heat exchange medium flow channel 131 to absorb the heat of the first gas flow channel 11 and release the heat to the second gas flow channel 12. Therefore, the heat exchange function of the gas heat exchange medium channel 131 can be realized quickly.

In some embodiments, the extending direction of the gas heat exchange medium flow passage 131 is perpendicular to the extending direction of the first gas flow passage 11 and the second gas flow passage 12, that is, the exhaust gas of the gas heat exchange medium flow passage 131 can rapidly absorb heat in the first gas flow passage 11; similarly, the extending direction of the gas heat exchange medium flow channel 131 is perpendicular to the extending direction of the second gas flow channel 12, that is, after the exhaust gas of the gas heat exchange medium flow channel 131 absorbs heat rapidly in the first gas flow channel 11, heat can be transferred rapidly and released in the second gas flow channel 12. Thus, the heat exchange efficiency between air and hydrogen can also be improved.

Specifically, as shown in fig. 2, the first gas flow channel 11 is disposed at the upper portion, the second gas flow channel 12 is disposed at the lower portion, and the gas medium inlet 1311 of the gas heat exchange medium flow channel 131 is disposed at the upper portion. That is, the upper first gas flow channel 11 is used for releasing heat, and the lower second gas flow channel 12 is used for absorbing heat, i.e., gas with high temperature is introduced into the upper portion, and gas with low temperature is introduced into the lower portion. Therefore, the arrangement of system power can be reduced by utilizing a heat transfer mode from top to bottom.

In some embodiments, the first gas channel 11 is provided with a first gas inlet 111 and a first gas outlet 112, the second gas channel 12 is provided with a second gas inlet 121 and a second gas outlet 122; wherein the gas flow direction from the first gas inlet 111 to the first gas outlet 112 is parallel and opposite to the gas flow direction from the second gas inlet 121 to the second gas outlet 122.

The first gas inlet 111 and the first gas outlet 112 may be disposed on the left or right side of the first gas flow path 11, and the second gas inlet 121 and the second gas outlet 122 may be disposed on the left or right side of the second gas flow path 12. Specifically, as shown in fig. 2, the direction indicated by the arrow is the gas flow direction, the first gas inlet 111 is disposed on the left side, the first gas outlet 112 is disposed on the right side, the second gas inlet 121 is disposed on the right side, and the second gas outlet 122 is disposed on the left side, which are parallel and opposite; from the general view, the temperature of the liquid and the gas flowing out from the right side is low, and the temperature of the gas is high, so that the subsequent treatment is convenient. From the overall structure, the internal structure of the heat exchanger 100 is completely symmetrical, and the structure of one rotation is the same, so that the design mode is simple, and the service life of the heat exchanger 100 is prolonged.

In some embodiments, the housing includes a first main plate 15, a second main plate 16 and a side wall plate 17, the first main plate 15 and the second main plate 16 are distributed opposite to each other and define an internal space, and the side wall plate 17 is connected between the first main plate 15 and the second main plate 16 and used for circumferentially closing the internal space; wherein the first gas inlet 111 and the second gas outlet 122 are located on one side of the side enclosing plate 17 in the second direction, and the first gas outlet 112 and the second gas inlet 121 are located on the other side of the side enclosing plate 17 in the second direction.

Specifically, as shown in fig. 1, the first gas inlet 111 and the second gas outlet 122 are located on the side wall 17 and close to the left position along the up-down direction, and the first gas outlet 112 and the second gas inlet 121 are located on the side wall 17 and close to the right position along the up-down direction, wherein the first gas inlet 111, the first gas outlet 112, the second gas inlet 121 and the second gas outlet 122 are all located on the outer side of the housing 1, that is, the first gas and the second gas flow into and out of the left side and the right side of the side wall 17, the arrangement is convenient to operate and maintain outside the housing 1, and the outer diameters of the pipes of the first gas inlet 111 and the first gas outlet 112 are larger than those of the pipes of the second gas inlet 121 and the second gas outlet 122, so as to identify the introduction of different types of gas during the operation, thereby avoiding errors, and the structure arrangement is simple and clear.

In some embodiments, the housing 1 is provided with a plurality of mounting feet 14, a plurality of mounting feet 14 are spaced apart on the housing 1.

Specifically, as shown in fig. 1, four corners of the housing 1 are provided with mounting legs 14, and the four mounting legs 14 are provided with mounting holes 141, the heat exchanger 100 and the fuel cell system can be assembled together by the four mounting legs 14 in a bolt fastening manner, and the four mounting legs 14 are arranged at four corners, so that the heat exchanger 100 is stressed uniformly during assembly and use, and is convenient to mount and easy to maintain.

Therefore, the utility model discloses a heat exchanger 100 integrates the setting through with first gas runner 11, second gas runner 12, gaseous heat transfer medium runner 131 and liquid heat transfer medium runner 132, can improve heat exchanger 100's among the traditional mode shortcoming bulky, that weight is big, and the inside structure that sets up the symmetry of heat exchanger 100, can improve the heat exchange rate of system, alleviates the load of system, has reduced purchasing cost simultaneously.

1. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

2. In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

3. In the description of the present invention, "a plurality" means two or more.

4. In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

5. In the description of the invention, "on", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the first feature is higher in level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A heat exchanger, comprising:

the shell is internally provided with a first gas flow channel, a second gas flow channel, a gas heat exchange medium flow channel and a liquid heat exchange medium flow channel, wherein the first gas flow channel and the second gas flow channel are distributed in parallel at intervals, and the gas heat exchange medium flow channel and the liquid heat exchange medium flow channel are suitable for sequentially exchanging heat with the first gas flow channel and the second gas flow channel respectively.

2. The heat exchanger of claim 1, wherein the gas flow direction in the first gas flow channel and the gas flow direction in the second gas flow channel are distributed across the gas medium flow direction in the gas heat exchange medium flow channel, and the gas flow direction in the first gas flow channel and the gas flow direction in the second gas flow channel are distributed across the liquid medium flow direction in the liquid heat exchange medium flow channel in the housing.

3. The heat exchanger of claim 1, wherein the gaseous heat exchange medium flow path has a gaseous medium inlet and a gaseous medium outlet, and the liquid heat exchange medium flow path has a liquid medium inlet and a liquid medium outlet, the gaseous medium inlet and the liquid medium inlet being located on a same side of the housing, and the gaseous medium outlet and the liquid medium outlet being located on a same side of the housing.

4. A heat exchanger according to claim 3, wherein the liquid heat exchange medium flow passage comprises a first flow section, a second flow section and an intermediate flow section, the first and second flow sections communicating through the intermediate flow section, the first flow section being distributed around the first gas flow passage, the second flow section being distributed around the second gas flow passage, the intermediate flow section being located between the first and second gas flow passages, the first and second flow sections being formed with the liquid medium inlet and the liquid medium outlet respectively.

5. The heat exchanger of claim 4, wherein a plurality of sub-flow paths are formed in the first and second flow sections, and wherein the flow directions of the plurality of sub-flow paths are the same and are perpendicular to the flow directions of the first and second gas flow paths.

6. A heat exchanger according to claim 3, wherein the housing includes a first main plate, a second main plate, and a side enclosure, the first main plate and the second main plate being disposed opposite to each other and defining an internal space, the side enclosure being connected between the first main plate and the second main plate and being configured to circumferentially enclose the internal space, the liquid medium inlet and the liquid medium outlet being located in either the first main plate or the second main plate;

the gas medium inlet and the gas medium outlet are respectively positioned on two sides of the side enclosing plate along the first direction.

7. The heat exchanger of claim 1, wherein the area of the heat exchange area of the liquid heat exchange medium flow passage and the first gas flow passage or the second gas flow passage is larger than the area of the heat exchange area of the gas heat exchange medium flow passage and the first gas flow passage or the second gas flow passage.

8. The heat exchanger of claim 1, wherein the first gas flow passage is provided with a first gas inlet and a first gas outlet, and the second gas flow passage is provided with a second gas inlet and a second gas outlet;

wherein a gas flow direction from the first gas inlet to the first gas outlet is parallel and opposite to a gas flow direction from the second gas inlet to the second gas outlet.

9. The heat exchanger of claim 8, wherein the housing includes a first main plate, a second main plate, and a side enclosure, the first main plate and the second main plate being distributed opposite each other and defining an interior space, the side enclosure being connected between the first main plate and the second main plate and circumferentially enclosing the interior space;

wherein the first gas inlet and the second gas outlet are located on one side of the side enclosing plate along the second direction, and the first gas outlet and the second gas inlet are located on the other side of the side enclosing plate along the second direction.

10. The heat exchanger of claim 1, wherein the housing is provided with a plurality of mounting feet spaced apart on the housing.

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