Fuel cell waste heat recovery heat exchanger

Abstract

The utility model is applicable to the technical field of new energy automobile fuel cells, and provides a fuel cell waste heat recovery heat exchanger, which comprises a heat exchanger main body, a plurality of heat exchange modules, a plurality of heat exchange modules, a plurality of heat exchange tubes, a plurality of heat exchange tubes and a plurality of heat exchange tubes, wherein the bottom of the heat exchanger main body is fixedly connected with a water outlet tube; a water outlet control structure is arranged in the heat absorption water pipe and comprises a plugging assembly used for sealing the water outlet, a limiting assembly used for limiting the plugging assembly and a limiting plate. And the abutting structure comprises two abutting plates which are symmetrically arranged, a rotating assembly used for driving the two abutting plates which are symmetrically arranged to move and a guiding assembly used for guiding the movement of the two abutting plates. By means of modular design and flexible water outlet control, efficient waste heat recovery and flexible operation are achieved. A water outlet control structure allows a user to easily control water flow according to requirements, meanwhile, the modules are convenient to clean, maintain and use due to the detachability, and the overall efficiency and reliability of the equipment are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to new energy automobile fuel cell technical field especially relates to a fuel cell waste heat recovery heat exchanger. BACKGROUND

[0002] Fuel cell (Fuel Cell) is a kind of chemical energy that exists in fuel and oxidant is directly converted into electric energy generating device, in the field of new energy vehicles, especially in fuel cell electric vehicle (FCEV) play a vital role.Fuel cell generates a large amount of heat when working, in order to improve energy utilization efficiency and ensure the stable operation of system, usually need to use fuel cell waste heat recovery heat exchanger to recover this part of heat.

[0003] The existing fuel cell waste heat recovery heat exchanger generally exists the problem of not enough flexible water outlet control, inconvenient maintenance and cleaning, lead to obvious deficiency in meeting the diversified operation demand and realizing convenient maintenance, limit the optimization of the overall performance of equipment.Therefore, a kind of fuel cell waste heat recovery heat exchanger is proposed. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of fuel cell waste heat recovery heat exchanger, to solve the problems presented in the above background technique.

[0005] The utility model embodiment is realized as follows, a kind of fuel cell waste heat recovery heat exchanger, including heat exchanger main body, the bottom of the heat exchanger main body is fixedly connected with water outlet pipe, further including:

[0006] Several heat exchange modules, the heat exchange module is detachably connected with heat exchanger main body, the heat exchange module is fixedly connected with handle, the heat exchange module is fixedly connected with heat absorption water pipe, the water outlet of the heat absorption water pipe is matched with water outlet pipe, the water inlet of the heat absorption water pipe is equipped with the cover body that is adapted;Water outlet control structure is equipped in the heat absorption water pipe, the water outlet control structure includes the plugging assembly for sealing outlet and the limiting assembly and limiting plate for limiting plugging assembly, the limiting plate is equipped with the several evenly distributed through holes;

[0007] Resisting structure is arranged on heat exchanger main body, for the position of several heat exchange modules is fixed, the resisting structure includes two symmetrically arranged resisting plates, the rotating assembly for driving two symmetrically arranged resisting plates to move and the guide assembly for guiding the movement of two resisting plates.

[0008] Further, the plugging assembly includes:

[0009] The blocking plate is provided in the heat absorbing water pipe, and the two sides of the blocking plate are provided with symmetrically arranged inclined walls;

[0010] The push-pull rod is fixedly arranged at the bottom of the blocking plate, and the tail end of the push-pull rod extends to the outside of the water outlet pipe.

[0011] Further, the limiting assembly comprises:

[0012] Two symmetrically arranged limiting rods are respectively fixed on the inner walls of the two sides of the heat absorbing water pipe.

[0013] The limiting seat is slidably connected to the limiting rod, and the upper and lower sides of the limiting seat are provided with inclined walls; when the bottom surface of the blocking plate abuts against the bottom wall of the heat absorbing water pipe, the lower inclined wall of the limiting seat abuts against the upper inclined wall of the blocking plate; when the top surface of the blocking plate abuts against the bottom wall of the limiting plate, the upper inclined wall of the limiting seat abuts against the lower inclined wall of the blocking plate; the sliding groove is arranged in the limiting seat and is matched with the limiting rod.

[0014] The spring is sleeved on the outer side of the limiting rod and is arranged between the limiting seat and the inner wall of the heat absorbing water pipe.

[0015] Further, the guiding assembly comprises:

[0016] Two symmetrically arranged fixed plates are fixedly arranged on the heat exchanger body.

[0017] The sliding rod is fixedly arranged between the two fixed plates, and the two abutting plates are slidably connected with the sliding rod.

[0018] Further, the rotating assembly comprises:

[0019] Two symmetrically arranged fixed plates are fixedly arranged on the heat exchanger body.

[0020] The bidirectional screw rod is rotatably arranged between the two fixed plates, and the bidirectional screw rod is provided with threads with opposite rotation directions; the two abutting plates are movably connected with the bidirectional screw rod through the threads with opposite rotation directions.

[0021] The knob is fixedly arranged at the tail end of the bidirectional screw rod.

[0022] Compared with the prior art, the beneficial effects of the present application are:

[0023] The fuel cell waste heat recovery heat exchanger realizes efficient waste heat recovery and flexible operation through modular design and flexible water outlet control. The water outlet control structure allows users to easily control the water flow according to the requirements, and the detachability of the module facilitates cleaning, maintenance and use, thereby improving the overall efficiency and reliability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic view of a fuel cell waste heat recovery heat exchanger.

[0025] Figure 2 It is a sectional structural schematic view of a heat exchange module in a fuel cell waste heat recovery heat exchanger.

[0026] Figure 3 It is a fuel cell waste heat recovery heat exchanger Figure 2 It is an enlarged structural schematic view of an A area in the fuel cell waste heat recovery heat exchanger.

[0027] Figure 4 It is a sectional structural schematic view of a limiting seat in a fuel cell waste heat recovery heat exchanger.

[0028] In the figure: heat exchanger body 11, sliding rod 12, fixed plate one 13, heat exchange module 14, handle 15, cover 16, fixed plate two 17, knob 18, bidirectional screw rod 19, pressing plate 21, heat absorption water pipe 22, water outlet pipe 23, push-pull rod 24, blocking plate 25, limiting seat 26, spring 27, limiting plate 28, through hole 29, limiting rod 31. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail by combining with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0030] The specific implementation of the utility model will be described in detail in combination with specific examples.

[0031] As Figures 1-4 shown, a fuel cell waste heat recovery heat exchanger provided by one embodiment of the utility model, including heat exchanger body 11, the bottom of heat exchanger body 11 is fixedly connected with water outlet pipe 23, still including:

[0032] A plurality of heat exchange modules 14, the heat exchange module 14 is detachably connected with heat exchanger body 11, the heat exchange module 14 is fixedly connected with handle 15, the heat exchange module 14 is fixedly connected with heat absorption water pipe 22 in, the water outlet of heat absorption water pipe 22 is matched with water outlet pipe 23, the water inlet of heat absorption water pipe 22 is equipped with the cover 16 that is adapted, the heat absorption water pipe 22 is equipped with water outlet control structure in, the water outlet control structure includes the blocking assembly for sealing water outlet and the limiting assembly and limiting plate 28 for limiting blocking assembly, the limiting plate 28 is opened in a plurality of evenly distributed through holes 29;

[0033] The pressing structure is arranged on the heat exchanger body 11 and is used for fixing positions of the heat exchange modules 14, and the pressing structure comprises two symmetrically arranged pressing plates 21, a rotating assembly used for driving the two symmetrically arranged pressing plates 21 to move and a guiding assembly used for guiding movement of the two pressing plates 21.

[0034] In the embodiment of the present application, the structure of the heat exchanger body 11 is similar to that of the waste heat recovery heat exchanger in the prior art, and will not be described in detail here.

[0035] As shown in Figure 2 and Figure 3 , as a preferred embodiment of the present application, the plugging assembly comprises:

[0036] The plugging plate 25 is arranged in the heat-absorbing water pipe 22, and the two sides of the plugging plate 25 are provided with symmetrically arranged inclined walls; the diameter of the bottom surface of the plugging plate 25 is greater than the diameter of the water outlet of the heat-absorbing water pipe 22;

[0037] The push-pull rod 24 is fixedly arranged at the bottom of the plugging plate 25, and the distal end of the push-pull rod 24 extends to the outside of the water outlet pipe 23.

[0038] In the embodiment of the present application, the maximum diameter of the cross section of the plugging plate 25 is smaller than the inner diameter of the heat-absorbing water pipe 22, so that the water flow is facilitated. The plugging plate 25 can be a counterweight plate with a certain weight.

[0039] As shown in Figure 3 and Figure 4 , as a preferred embodiment of the present application, the limiting assembly comprises:

[0040] Two symmetrically arranged limiting rods 31 are fixedly arranged on the inner walls on the two sides of the heat-absorbing water pipe 22;

[0041] The limiting seat 26 is slidably connected to each of the limiting rods 31, and the upper and lower sides of the limiting seat 26 are provided with inclined walls; when the bottom surface of the plugging plate 25 abuts against the bottom wall of the heat-absorbing water pipe 22, the lower inclined wall of the limiting seat 26 abuts against the upper inclined wall of the plugging plate 25; when the top surface of the plugging plate 25 abuts against the bottom wall of the limiting plate 28, the upper inclined wall of the limiting seat 26 abuts against the lower inclined wall of the plugging plate 25; a sliding groove is formed in the limiting seat 26, and the sliding groove is matched with the limiting rod 31;

[0042] The spring 27 is sleeved on the outer side of the limiting rod 31 and is arranged between the limiting seat 26 and the inner wall of the heat-absorbing water pipe 22.

[0043] In the embodiment of the utility model, when the bottom surface of the plugging plate 25 abuts against the bottom wall of the heat absorbing water pipe 22, water flow cannot flow out of the heat absorbing water pipe 22 at this time. When water needs to be discharged, the push-pull rod 24 is pushed upward, the push-pull rod 24 drives the plugging plate 25 to move upward, because the lower inclined wall of the limiting seat 26 abuts against the upper inclined wall of the plugging plate 25, the plugging plate 25 extrudes the limiting seat 26 on both sides, so that the two limiting seats 26 are away from each other, then the plugging plate 25 passes the limiting seat 26 until the top surface of the plugging plate 25 abuts against the bottom wall of the limiting plate 28, the plugging plate 25 does not move any more, at this time, under the elastic force of the spring 27, the two limiting seats 26 are close to each other until the upper inclined wall of the limiting seat 26 abuts against the lower inclined wall of the plugging plate 25, the limiting seat 26 does not move any more, at this time, the outlet of the heat absorbing water pipe 22 is opened, water flow flows out of the heat absorbing water pipe 22. When water discharge is stopped, the push-pull rod 24 is pulled downward, because the upper inclined wall of the limiting seat 26 abuts against the lower inclined wall of the plugging plate 25, the plugging plate 25 extrudes the limiting seat 26 on both sides, so that the two limiting seats 26 are away from each other, then the plugging plate 25 passes the limiting seat 26 until the bottom surface of the plugging plate 25 abuts against the bottom wall of the heat absorbing water pipe 22, the plugging plate 25 does not move any more, at this time, under the elastic force of the spring 27, the two limiting seats 26 are close to each other until the lower inclined wall of the limiting seat 26 abuts against the upper inclined wall of the plugging plate 25, the limiting seat 26 does not move any more, at this time, the outlet of the heat absorbing water pipe 22 is closed, water flow cannot flow out of the heat absorbing water pipe 22. Users can choose whether to take out the heat exchange module 14 for use according to requirements, and realize the control of water flow.

[0044] As shown in Figure 1 , as a preferred embodiment of the utility model, the guide assembly comprises:

[0045] Two symmetrical fixed plates one 13 are fixedly arranged on the heat exchanger body 11;

[0046] The slide rod 12 is fixedly arranged between the two fixed plates one 13, and the two pressing plates 21 are slidably connected with the slide rod 12.

[0047] In the embodiment of the utility model, through the above setting, the pressing plate 21 can be close to or away from each other.

[0048] As shown in Figure 1 , as a preferred embodiment of the utility model, the rotating assembly comprises:

[0049] Two symmetrical fixed plates two 17 are fixedly arranged on the heat exchanger body 11;

[0050] The bidirectional screw rod 19 is rotatably arranged between the two fixed plates two 17, the bidirectional screw rod 19 is provided with threads of opposite rotation, and the two pressing plates 21 are movably connected with the bidirectional screw rod 19 through the threads of opposite rotation;

[0051] A knob 18 is fixedly arranged at the end of the bidirectional screw rod 19.

[0052] In the embodiment of the utility model, when the heat exchange module 14 needs to be drawn out, the knob 18 is rotated, and the knob 18 drives the bidirectional screw rod 19 to rotate, since the two pressing plates 21 can only move relative to the slide rod 12, under the action of the opposite threads on the bidirectional screw rod 19, the two pressing plates 21 move away from each other, and then the pressing plate 21 is separated from the top surface of the heat exchange module 14, so that the heat exchange module 14 can be drawn out for cleaning, water adding and water draining operations; when the heat exchange module 14 needs to be inserted into the heat exchanger main body 11, the knob 18 is rotated in the opposite direction, so that the two pressing plates 21 move close to each other, and then the pressing plate 21 is pressed against the top surface of the heat exchange module 14, so that the heat exchange module 14 is fixed, and the stability of the waste heat recovery process is ensured.

[0053] The working principle of the utility model is:

[0054] When the heat exchange module 14 needs to be drawn out, the knob 18 is rotated, so that the bidirectional screw rod 19 rotates, and then the two pressing plates 21 move away from each other and are separated from the top surface of the heat exchange module 14, so that the heat exchange module 14 can be drawn out; when the heat exchange module 14 needs to be inserted into the heat exchanger main body 11, the knob 18 is rotated in the opposite direction, so that the heat exchange module 14 is fixed. When water needs to be drained, the push-pull rod 24 is pushed upward, the blocking plate 25 is moved upward, the blocking plate 25 presses the two limiting seats 26 on its two sides, so that the two limiting seats 26 move away from each other, and then the blocking plate 25 passes over the limiting seat 26 until the top surface of the blocking plate 25 abuts against the bottom wall of the limiting plate 28, and the blocking plate 25 no longer moves, at this time, under the elastic force of the spring 27, the two limiting seats 26 move close to each other until the upper inclined wall of the limiting seat 26 abuts against the lower inclined wall of the blocking plate 25, and the limiting seat 26 no longer moves, at this time, the outlet of the heat absorption water pipe 22 is opened, and water flows out of the heat absorption water pipe 22. When water draining is stopped, the push-pull rod 24 is pulled downward, so that the outlet of the heat absorption water pipe 22 is blocked by the blocking plate 25, and water cannot flow out of the heat absorption water pipe 22.

[0055] The above is only the preferred embodiment of the utility model, and it should be pointed out that for those skilled in the art, without departing from the concept of the utility model, some modifications and improvements can be made, which should also be regarded as the protection range of the utility model, and these will not affect the effect and practicality of the utility model.

Claims

1. A fuel cell waste heat recovery heat exchanger comprising a heat exchanger main body, a water outlet pipe being fixedly connected to the bottom of the heat exchanger main body, characterized in that, Also include: A plurality of heat exchange modules, the heat exchange module is detachable with heat exchanger main body, the heat exchange module is fixedly connected with the handle, the heat exchange module is fixedly connected with the heat absorption water pipe, the water outlet of the heat absorption water pipe is matched with the water outlet pipe, the water inlet of the heat absorption water pipe is equipped with the cover body; The heat absorption water pipe is provided with a water outlet control structure, the water outlet control structure includes a plugging assembly for sealing the water outlet, a limiting assembly and a limiting plate for limiting the plugging assembly, a plurality of evenly distributed through holes are formed in the limiting plate; The pressing structure is arranged on the heat exchanger main body, which is used for fixing the position of the plurality of heat exchange modules, the pressing structure includes two symmetrically arranged pressing plates, a rotating assembly for driving the two symmetrically arranged pressing plates to move and a guide assembly for guiding the movement of the two pressing plates.

2. The fuel cell waste heat recovery heat exchanger according to claim 1, characterized by, The plugging assembly includes: The plugging plate is arranged in the heat absorption water pipe, the both sides of the plugging plate are provided with symmetrically arranged inclined walls; The diameter of the bottom surface of the plugging plate is greater than the diameter of the water outlet of the heat absorption water pipe; The push-pull rod is fixedly arranged at the bottom of the plugging plate, and the end of the push-pull rod extends to the outside of the water outlet pipe.

3. The fuel cell waste heat recovery heat exchanger of claim 2, wherein The limiting assembly includes: Two symmetrically arranged limiting rods, two limiting rods are respectively fixed on the inner walls of the both sides of the heat absorption water pipe; The limiting seat is slidably connected to the limiting seat on each of the limiting rods, the both sides of the limiting seat are provided with inclined walls; When the bottom surface of the plugging plate abuts against the bottom wall of the heat absorption water pipe, the lower inclined wall of the limiting seat abuts against the upper inclined wall of the plugging plate; When the top surface of the plugging plate abuts against the bottom wall of the limiting plate, the upper inclined wall of the limiting seat abuts against the lower inclined wall of the plugging plate; The limiting seat is provided with a sliding groove, and the sliding groove is matched with the limiting rod; The spring is sleeved on the outer side of the limiting rod and arranged between the limiting seat and the inner wall of the heat absorption water pipe.

4. The fuel cell waste heat recovery heat exchanger according to claim 1, characterized by, The guide assembly includes: Two symmetrically arranged fixed plates, fixedly arranged on the heat exchanger main body; The sliding rod is fixedly arranged between the two fixed plates, and the two pressing plates are slidably connected with the sliding rod.

5. The fuel cell waste heat recovery heat exchanger of claim 1, wherein The rotating assembly includes: Two symmetrically arranged fixed plates, fixedly arranged on the heat exchanger main body; The bidirectional screw rod is rotatably arranged between the two fixed plates, and the bidirectional screw rod is provided with threads with opposite rotation directions, and the two pressing plates are movably connected with the bidirectional screw rod through the threads with opposite rotation directions; The knob is fixedly arranged at the end of the bidirectional screw rod.

Images