A heat exchange device

Abstract

The utility model relates to the heat exchange technical field of automobile air conditioning component detection, especially a kind of heat exchange device, comprising: mounting bracket and the medium storage container, heating unit and circulating unit installed on the mounting bracket;Liquid medium is loaded in medium storage container, heating unit receives liquid medium heating and exports, circulating unit is communicated medium storage container and heating unit, the circulating unit exports the liquid medium after heating unit heating, and liquid medium after completing heat exchange is circulated and sent back heating unit, on the basis of existing heat exchange system, the circulation of liquid medium is realized by circulating unit, and the circulation of liquid medium is utilized, and then the recurrence of stable heat exchange scene is realized, and the stability and accuracy of test are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the heat exchange technical field of automobile air conditioning component detection, especially relates to a heat exchange device. BACKGROUND

[0002] In air conditioning component detection, the core purpose of using the heat supply system for heat exchange heat supply is to simulate the heat exchange working condition in the actual operation of the air conditioner, so as to accurately verify the performance, reliability and system compatibility of the component. The air conditioner is essentially a device that realizes "heat transport" through refrigerant circulation, and its refrigeration and heating functions depend on stable heat exchange process, and the detection needs to reproduce this core scene, so the heat exchange heat supply system becomes a key test condition.

[0003] For example, the Chinese patent with patent application number CN202110261646.5 specifically discloses a general heat pump air conditioning system performance detection device and its detection method. The device includes a power system, a temperature and pressure detection system, and a heat exchange system. The power system is used to compress refrigerant and discharge high-temperature and high-pressure refrigerant gas. The temperature and pressure detection system is used to receive pipeline flow signals, temperature signals and pressure signals to determine the performance of the compressor and the heat exchanger under heating or cooling conditions. The heat exchange system is used for the phase change of the coolant and exchanges heat with the outside world, including an expansion valve, a heat exchanger one, a heat exchanger two, a PTC heater, etc.

[0004] Although the above technical solution gives a specific detection method, it does not give the specific structure of the heat exchange system, and the heat supply capacity of the existing heat exchange system is single, cannot be adjusted for different detection environments, and the liquid medium cannot be circulated. UTILITY MODEL CONTENTS

[0005] To solve the above problems, the utility model provides a heat exchange device, which realizes the circulation of liquid medium on the basis of the existing heat exchange system, utilizes the circulation of liquid medium, and further realizes the reproduction of stable heat exchange scene, improves the stability and accuracy of test, and adopts the double heating unit switchable structure of heating unit, utilizes the switching and synchronous starting of heating unit, and further adjusts the heating efficiency of liquid medium, improves the temperature rising speed of liquid medium, so that it can be suitable for the detection of different models and powers of air conditioner components.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A heat exchange device comprises:

[0008] A mounting bracket, a medium storage container, a heating unit and a circulation unit mounted on the mounting bracket;

[0009] The medium storage container is loaded with liquid medium, the heating unit receives the output of the liquid medium after heating, the heating unit is arranged in parallel with two groups, the circulating unit is communicated with the medium storage container and the heating unit, the circulating unit outputs the liquid medium after heating of the heating unit, and the liquid medium after completing heat exchange is circulated and sent back to the heating unit;

[0010] The circulating unit is communicated with the heating unit and the medium storage container of the two groups through the shunt pipe in the input pipe group, and the shunt pipe is provided with a shunt valve.

[0011] As an improvement, the heating unit is an electric heating unit.

[0012] As an improvement, the heating unit comprises a heating pipe and an electric heating element.

[0013] The heating pipe is internally provided with a heating cavity, and the axial ends of the heating pipe are respectively provided with a liquid inlet and a liquid outlet.

[0014] The electric heating element is inserted into the heating pipe.

[0015] As an improvement, the heating unit further comprises a plurality of partitions, the partitions are arranged in a fan shape, and the partitions are arranged in a spiral along the axial direction of the heating pipe in the heating cavity.

[0016] As an improvement, the circulating unit comprises a pump, an input pipe group, an output pipe group and a return pipe group.

[0017] The pump pumps to drive the flow of liquid medium.

[0018] The input pipe group is sequentially communicated with the medium storage container, the pump and the heating unit.

[0019] The output pipe group is communicated with the heating unit and an external heat supply device, and outputs the liquid medium after heating of the heating unit.

[0020] The return pipe group is communicated with the external heat supply device and the input pipe group, and circulates the liquid medium after heat exchange to the input pipe group.

[0021] As an improvement, the input pipe group further comprises an input pipe.

[0022] The input pipe is communicated with the outlet of the medium storage container and the inlet of the pump.

[0023] The shunt pipe is communicated with the liquid outlet of the pump and the liquid inlet of the heating pipe, and the shunt valve is arranged at the communication position of the pump and the shunt pipe.

[0024] As an improvement, the input pipe group further comprises an overflow pipe, the overflow pipe is communicated with the input pipe and the shunt pipe, and the overflow pipe is provided with an on-off valve.

[0025] As an improvement, the output pipe group comprises a confluence pipe and an output pipe;

[0026] The confluence pipe is communicated with the liquid outlet on the heating pipe of the two groups;

[0027] The output pipe is communicated with the liquid outlet of any heating pipe, and the output pipe is provided with an electric regulating valve.

[0028] As an improvement, the output pipe is provided with an auxiliary pipe which bypasses the electric regulating valve and is communicated with the output pipe, and the auxiliary pipe is provided with a control valve.

[0029] As an improvement, the return pipe group comprises a return pipe and a flow meter;

[0030] The return pipe is communicated with the input pipe and an external heat supply device, and the return pipe is provided with a liquid discharge pipe which is provided with a liquid discharge valve;

[0031] The flow meter is arranged on the return pipe, and the flow meter monitors the flow rate of the liquid flowing in the return pipe.

[0032] The utility model discloses a heat exchange system and a heat exchange test method thereof.

[0033] (1) the utility model discloses on the basis of the existing heat exchange system, realizes the circulation of liquid medium through the circulation unit, utilizes the circulation of liquid medium, maintains the stability of heat exchange, and then realizes the recurrence of stable heat exchange scene, improves the stability and accuracy of test.

[0034] (2) in the utility model, through setting two groups of heating units, the heating efficiency of liquid medium is adjusted by switching and synchronous starting of the heating unit, and the heating speed of liquid medium is improved, so that the detection of air conditioning parts of different models and powers can be realized, and the application range is wider.

[0035] (3) in the utility model, the connecting structure of the medium storage container and the return unit is improved, so that the returned liquid medium can always be supplemented by the liquid medium in the medium storage container, and the heat exchange fluctuation of the liquid medium due to the loss in the heat exchange process can be avoided.

[0036] In summary, the utility model has the advantages of improving the authenticity and reliability of test results, improving the stability of heat exchange scene recurrence, and is especially suitable for the field of automobile air conditioning part test technology. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0038] Figure 2The utility model discloses a circulating unit three-dimensional structure schematic diagram Figure One ;

[0039] Figure 3 The utility model discloses a circulating unit three-dimensional structure schematic diagram Figure Two ;

[0040] Figure 4 The utility model discloses a circulating unit three-dimensional structure schematic diagram Figure Three ;

[0041] Figure 5 The utility model discloses an electric heating element three-dimensional structure schematic drawing.

[0042] Figure 6 The utility model discloses a partition three-dimensional structure schematic drawing.

[0043] Figure mark: mounting frame 1,

[0044] Medium storage container 2, outlet 21,

[0045] Heating unit 3, heating pipe 31, heating cavity 311, liquid inlet 312, liquid outlet 313, electric heating element 32, partition 33,

[0046] Circulating unit 4, pump 41, inlet 411, liquid discharge port 412, input pipe group 42, input pipe 421, shunt pipe 422, shunt valve 423, overflow pipe 424, switch valve 425, output pipe group 43, confluence pipe 431, output pipe 432, electric regulating valve 433, auxiliary pipe 434, control valve 435, backflow pipe group 44, backflow pipe 441, flowmeter 442, liquid discharge pipe 443, liquid discharge valve 444. Specific implementation

[0047] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the utility model.

[0048] In the description of this utility model, it should 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", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0050] Example 1:

[0051] like Figures 1-4 As shown, a heat exchange device includes:

[0052] Mounting frame 1 and media storage container 2, heating unit 3 and circulation unit 4 mounted on mounting frame 1;

[0053] The medium storage container 2 is filled with liquid medium. The heating unit 3 receives the liquid medium, heats it, and outputs it. The circulation unit 4 connects the medium storage container 2 and the heating unit 3. The circulation unit 4 outputs the liquid medium heated by the heating unit 3 and circulates the liquid medium after heat exchange back to the heating unit 3.

[0054] The heating unit 3 is an electric heating unit. Two sets of heating units 3 are arranged side by side in parallel. The heating units 3 can be started synchronously or individually, thereby realizing the adjustment of the heating efficiency of the liquid medium.

[0055] The heating unit 3 specifically includes a heating tube 31 and an electric heating element 32;

[0056] The heating tube 31 is provided with a heating chamber 311 inside, which is used to load liquid medium for heating. The heating tube 31 is provided with an inlet 312 and an outlet 313 at both ends of its axial direction. The liquid medium enters the heating chamber 311 through the inlet 312 and the heated liquid medium is output through the outlet 313.

[0057] The electric heating element 32 is inserted into the heating pipe 31, extends into the heating cavity 311, and converts electric energy into heat energy by electric heating to heat the liquid medium in the heating cavity 311.

[0058] In addition, the circulating unit 4 for driving the liquid medium to circulate includes a pump 41, an input pipe group 42, an output pipe group 43, and a return pipe group 44.

[0059] The pump 41 pumps the liquid medium to flow. When the pump 41 operates, the liquid medium output from the medium storage container 2 and the liquid medium returned by the return pipe group 44 are pumped by the pump 41 and delivered to the heating pipe 31.

[0060] The input pipe group 42 is in communication with the medium storage container 2, the pump 41, and the heating unit 3 in sequence, and includes an input pipe 421 and a shunt pipe 422. The input pipe 421 is in communication with the outlet 21 of the medium storage container 2 and the inlet 411 of the pump 41, and is used to deliver the liquid medium from the medium storage container 2 to the pump 41. The shunt pipe 422 is in communication with the liquid outlet 412 of the pump 41 and the liquid inlet 312 of the heating pipe 31. The pump 41 delivers the input liquid medium to the two groups of heating pipes 31 through the shunt pipe 422, and a shunt valve 423 is arranged at the communication position of the pump 41 and the shunt pipe 422. The shunt valve 423 is used to control the communication between the shunt pipe 422 and the heating pipe 31, so that the two groups of heating pipes 31 can be used alternately or synchronously.

[0061] The output pipe group 43 is in communication with the heating unit 3 and an external heat supply device, and outputs the liquid medium heated by the heating unit 3. The output pipe group 43 includes a confluence pipe 431 and an output pipe 432. The confluence pipe 431 is in communication with the liquid outlets 313 of the two groups of heating pipes 31, and the liquid medium heated by the two groups of heating pipes 31 is merged through the confluence pipe 431. The output pipe 432 is in communication with the liquid outlet 313 of any one of the heating pipes 31. The merged liquid medium is delivered to the external heat supply device through the output pipe 432 for heat exchange. An electric regulating valve 433 is arranged on the output pipe 432, and is used to control the output flow of the liquid medium in the output pipe 432.

[0062] The return pipe group 44 is connected with the external heat supply device and the input pipe group 42, and circulates the liquid medium after heat exchange to the input pipe group 42, and the return pipe group 44 comprises a return pipe 441 and a flow meter 442; the return pipe 441 is connected with the input pipe 421 and the external heat supply device, and a liquid discharge pipe 443 is arranged on the return pipe 441, and a liquid discharge valve 444 is arranged on the liquid discharge pipe 443; the liquid medium after heat exchange of the heat supply device is returned to the input pipe 421 through the return pipe 441, and the liquid discharge valve 444 is used for discharging the liquid medium during maintenance, and the flow meter 442 is arranged on the return pipe 441, and the flow meter 442 monitors the flow rate of the liquid flowing in the return pipe 441.

[0063] Embodiment 2:

[0064] Embodiment 2 of the utility model is different from embodiment 1 in that:

[0065] As shown in Figures 5-6 The heating unit 3 further comprises a plurality of partitions 33, the partitions 33 are arranged in a fan shape, and the partitions 33 are arranged in the heating cavity 311 along the axial direction of the heating pipe 31 in a spiral manner.

[0066] The internal space of the heating pipe 31 is divided by the partitions 33, so that the internal space of the heating pipe 31 is folded, thereby prolonging the path of the liquid medium in the heating pipe 31, improving the contact time of the liquid medium with the electric heating element 32, and improving the uniformity of the temperature rise of the liquid medium.

[0067] Embodiment 3:

[0068] Embodiment 3 of the utility model is different from embodiment 1 in that:

[0069] As shown in Figure 2 The input pipe group 42 further comprises an overflow pipe 424, the overflow pipe 424 is connected with the input pipe 421 and the shunt pipe 422, and a switch valve 425 is arranged on the overflow pipe 424.

[0070] The overflow pipe 424 can provide another adjustment mode in addition to single-group starting and synchronous starting of the two groups of heating units 3, form a starting mode between single-group starting and two-group starting, and enrich the heating mode of the heating unit 3.

[0071] Embodiment 4:

[0072] Embodiment 4 of the utility model is different from embodiment 1 in that:

[0073] As shown in Figures 3-4As shown, the output pipe 432 is provided with an auxiliary pipe 434, which bypasses the electric regulating valve 433 and communicates with the output pipe 432, and the auxiliary pipe 434 is provided with a control valve 435.

[0074] The auxiliary pipe 434 is provided so that when the electric regulating valve 433 fails, the liquid medium can be discharged through the auxiliary pipe 434 for maintenance, and the device can still operate in a failure state of the electric regulating valve 433 until the detection work is completed and maintenance is performed.

[0075] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A heat exchange device, characterized by, The heat exchange device comprises a mounting rack (1), a medium storage container (2) mounted on the mounting rack (1), a heating unit (3) and a circulating unit (4). The medium storage container (2) is loaded with liquid medium, the heating unit (3) receives the liquid medium after heating and outputs, the heating unit (3) is provided in parallel with two groups, the circulating unit (4) is connected with the medium storage container (2) and the heating unit (3), the circulating unit (4) outputs the liquid medium heated by the heating unit (3), and the liquid medium after heat exchange is circulated and sent back to the heating unit (3). The circulating unit (4) is connected with the two groups of heating units (3) and the medium storage container (2) through the shunt pipe (422) in the input pipe group (42), and the shunt pipe (422) is provided with a shunt valve (423).

2. The heat exchange device according to claim 1, wherein the heating unit (3) is an electric heating unit.

3. The heat exchange device according to claim 2, wherein the heating unit (3) comprises a heating pipe (31) and an electric heating element (32).

4. The heat exchange device according to claim 3, wherein the heating unit (3) further comprises a plurality of baffles (33), the baffles (33) are arranged in a fan shape, and the baffles (33) are arranged in the heating cavity (311) along the axial direction of the heating pipe (31).

5. The heat exchange device according to claim 3, wherein the circulating unit (4) comprises a pump (41), an input pipe group (42), an output pipe group (43) and a return pipe group (44).

6. The heat exchange device according to claim 5, wherein the input pipe group (42) further comprises an input pipe (421).

7. The heat exchange device according to claim 6, wherein the input pipe (421) is connected with the outlet (21) of the medium storage container (2) and the inlet (411) of the pump (41), the shunt pipe (422) is connected with the liquid outlet (412) of the pump (41) and the liquid inlet (312) of the heating pipe (31), and the shunt valve (423) is arranged at the connection position of the pump (41) and the shunt pipe (422). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The input pipe group (42) further comprises an overflow pipe (424) which is connected with the input pipe (421) and the distribution pipe (422), and a switch valve (425) is arranged on the overflow pipe (424).

8. The heat exchange device of claim 5, wherein: The output pipe group (43) comprises a combination pipe (431) and an output pipe (432); The combination pipe (431) is connected with the liquid outlet (313) of the heating pipe (31); The output pipe (432) is connected with the liquid outlet (313) of any heating pipe (31), and an electric regulating valve (433) is arranged on the output pipe (432).

9. The heat exchange device of claim 8, wherein: An auxiliary pipe (434) is arranged on the output pipe (432), the auxiliary pipe (434) bypasses the electric regulating valve (433) and is connected with the output pipe (432), and a control valve (435) is arranged on the auxiliary pipe (434).

10. The heat exchange device of claim 6, wherein: The return pipe group (44) comprises a return pipe (441) and a flow meter (442); The return pipe (441) is connected with the input pipe (421) and an external heat supply device, and a liquid discharge pipe (443) is arranged on the return pipe (441), and a liquid discharge valve (444) is arranged on the liquid discharge pipe (443); The flow meter (442) is arranged on the return pipe (441), and the flow meter (442) monitors the flow rate of the liquid flowing in the return pipe (441).

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