Water bath vaporizer test device

Abstract

The present application relates to the technical field of vehicle-mounted air supply system test tooling, and specifically to a water bath type vaporizer test device, wherein the vaporizer to be tested includes a first coolant channel and a first gas channel, and the test device includes: a coolant supply return assembly, which is circulated and connected with the first coolant channel, and is used to circulate coolant to the vaporizer to be tested, wherein a first temperature sensor is provided on the passage connecting the coolant supply return assembly with the liquid inlet end of the first coolant channel, and a liquid flow meter is provided on the passage connecting the coolant supply return assembly with the first coolant channel; a liquid gas supply assembly, which is connected with the liquid inlet end of the first gas channel; a gas exhaust assembly, which is connected with the gas outlet end of the first gas channel, and a second temperature sensor, a gas flow meter, and a gas path stop valve are provided on the connecting passage. The present application has the effect of quickly verifying the performance of a water bath type vaporizer under low temperature conditions.

Description

Technical Field

[0001] The present application relates to the field of vehicle-mounted air supply system testing equipment, and in particular to a water bath type vaporizer testing device. Background Art

[0002] A water bath vaporizer is a device that vaporizes cryogenic liquid gas into gaseous gas by exchanging heat between liquid heating medium and cryogenic liquid gas, so that the gas supply is sufficient and the pressure is stable. Cryogenic liquid gas can be liquid oxygen, liquid nitrogen, liquid argon, liquid carbon dioxide, liquefied petroleum gas, liquid hydrogen, etc. For example, in the automotive field, a water bath vaporizer is a key component of the automotive liquid hydrogen storage and supply system. In traditional technology, the performance of a water bath vaporizer needs to be determined by the actual use of the vehicle, and it is impossible to quickly verify whether the performance of the water bath vaporizer meets the requirements.

[0003] In the related art, in order to solve the above problems and to quickly verify the performance of a water bath evaporator, a test device is provided which uses a circulating water heating supply system to provide circulating hot water as a liquid heating medium.

[0004] With regard to the above-mentioned related technologies, there is a defect that the performance of the water bath vaporizer under low temperature conditions cannot be quickly verified. Summary of the invention

[0005] In order to quickly verify the performance of a water bath vaporizer under low temperature conditions, the purpose of the present application is to provide a water bath vaporizer testing device.

[0006] The water bath vaporizer testing device provided in this application adopts the following technical solution:

[0007] A water bath type vaporizer testing device, the vaporizer to be tested comprises a first coolant channel and a first gas channel, and the testing device comprises:

[0008] A coolant supply return assembly, which is in circulation communication with the first coolant channel and is used to circulate coolant to the vaporizer to be tested, wherein a first temperature sensor is provided on a passage communicating with the liquid inlet end of the first coolant channel, and a liquid flow meter is provided on a passage communicating with the first coolant channel;

[0009] a liquid gas supply assembly connected to a liquid inlet end of the first gas channel;

[0010] The gas exhaust component is connected to the gas outlet end of the first gas channel, and a second temperature sensor, a gas flow meter, and a gas path stop valve are arranged on the connecting passage.

[0011] By adopting the above technical solution, the coolant supply return component continuously provides coolant of a predetermined temperature to the vaporizer to be tested, and the coolant of the predetermined temperature passes through the first coolant channel and is discharged through the liquid outlet end of the first coolant channel. The liquid gas supply component is used to introduce liquid gas to be gasified into the liquid inlet end of the first gas channel, so as to meet the working requirements of the vaporizer to be tested in a low temperature environment. Furthermore, during the test process, by setting the preset temperature T1, flow rate Q1, flow rate Q2, and cooperating with the test exhaust gas temperature T2, a comprehensive and rapid judgment of the performance of the vaporizer to be tested under the corresponding preset temperature T1 condition is achieved.

[0012] Optional coolant return assembly includes:

[0013] A coolant container, in which a cooling pipe is arranged;

[0014] A coolant supply pipeline, comprising a first pipeline having one end connected to the lower end of the coolant container, a water pump connected to the liquid outlet of the first pipeline, and a second pipeline connected to the liquid outlet of the water pump, wherein the other end of the second pipeline is connected to the liquid inlet end of the first coolant channel, wherein a first temperature sensor and a liquid flow meter are arranged on the second pipeline;

[0015] The coolant return pipeline includes a third pipeline whose one end is connected to the liquid outlet of the first coolant channel, wherein the other end of the third pipeline is connected to the high end of the coolant container, or the other end of the third pipeline is connected to a recovery container.

[0016] By adopting the above technical scheme, the coolant is supplied to the vaporizer to be tested through the coolant container and the coolant supply pipeline. While supplying the coolant, the corresponding parameters are obtained through the first temperature sensor and the liquid flow meter. The parameters provide a reference for the cooling effect of the coolant in the coolant container and the coolant extraction flow rate. Furthermore, the coolant is recovered through the coolant circuit, and the coolant discharged through the coolant outlet can directly flow back to the coolant container, reducing the setting of the recovery container.

[0017] Optionally, the liquid inlet end of the cooling tube is connected to a liquid nitrogen container, and a plurality of through holes are provided at intervals on the cooling tube.

[0018] By adopting the above technical solution, a liquid nitrogen container is used as a cooling source to meet the cooling demand for low-temperature measurement of the vaporizer, and after the liquid nitrogen provides the cooling temperature, it can be directly discharged to reduce the recovery pressure. Furthermore, in order to solve the problem that the heat exchange effect is poor although the traditional cooling tube is increased by setting it into multiple groups and / or extending the coiling length, the liquid nitrogen is directly discharged into the coolant by opening a through hole, and the coolant is directly cooled. At this time, there is no need to set a coil to achieve a better cooling effect.

[0019] Optionally, the coolant container is in a rectangular shape, the cooling pipe includes a horizontal portion located in the middle of the coolant container, the horizontal pipe is extended along the width direction of the coolant container, and the multiple through holes are evenly distributed on both sides of the horizontal pipe.

[0020] By adopting the above technical solution, the cooling pipe is arranged in the middle of the coolant container and is evenly arranged along the width direction of the coolant container, thereby improving cooling uniformity.

[0021] Optionally, the through hole has a diameter of 8-12 mm.

[0022] By adopting the above technical solution and limiting the aperture, the probability of the coolant freezing due to direct discharge of liquid nitrogen into the coolant is reduced.

[0023] Optionally, a heating pipe is provided in the coolant container.

[0024] By adopting the above technical solution, the cooling liquid can be heated, and in combination with the cooling pipe, the detection of the vaporizer to be tested within the full temperature range can be achieved.

[0025] Optionally, the gas exhaust component includes a fourth pipe, a heat conduction pipe, and a fifth pipe which are connected in sequence, wherein the free end of the fourth pipe is connected to the gas outlet end of the first gas channel, the second temperature sensor is arranged on the fourth pipe, the length of the heat conduction pipe is 2-4m, and the gas flow meter is arranged on the fifth pipe.

[0026] By adopting the above technical solution and setting the heat-conducting pipe, the exhaust gas is heated before passing through the gas flow meter, thereby improving the detection accuracy of the gas flow.

[0027] Optionally, it further includes a heating vaporizer, the heating vaporizer includes a second coolant channel and a second gas channel;

[0028] The other end of the third pipeline is connected to the liquid inlet end of the second coolant channel, and the liquid outlet end of the second coolant channel is connected to the sixth pipeline, wherein the other end of the sixth pipeline is connected to the high end of the coolant container, or the other end of the sixth pipeline is connected to a recovery container;

[0029] Gas exhaust components include:

[0030] a seventh pipeline, two ends of which are respectively connected to the gas outlet end of the first gas channel and the liquid inlet end of the second gas channel, and the second temperature sensor is arranged on the seventh pipeline;

[0031] One end of the eighth pipeline is connected to the gas outlet end of the second gas channel, and a gas flow meter and a gas path stop valve are arranged on the eighth pipeline.

[0032] By adopting the above technical solution, by setting a heating vaporizer, cooperating with the setting of the gas exhaust component and the third pipeline, the coolant discharged from the third pipeline can be used as a liquid heating medium to further heat the gas discharged from the vaporizer to be tested, and the waste heat can be used to increase the temperature of the gas passing through the gas flow meter without affecting the flow rate, thereby improving the measurement accuracy of the gas flow meter.

[0033] Optionally, a buffer tank is provided on the eighth pipeline between the gas circuit stop valve and the gas flow meter.

[0034] By adopting the above technical solution and setting a buffer tank, the airflow stability of the exhaust gas can be controlled and the accuracy of the detection data can be improved.

[0035] Optionally, pressure sensors are provided on the second pipeline and the third pipeline.

[0036] By adopting the above technical solution, the pressure sensors on the second pipe and the third pipe are arranged to assist in judging the obstruction of the vaporizer to the coolant, and further judge the influence of the vaporizer to be tested on the entire water bath vaporizer test device.

[0037] In summary, the present application includes at least one of the following beneficial technical effects:

[0038] 1. A cooling tube is set in the coolant supply return assembly to meet the working requirements of the vaporizer to be tested in a low temperature environment, and the performance of the water bath vaporizer under low temperature conditions is quickly verified. Furthermore, a heating tube is set to quickly verify the performance of the water bath vaporizer in the full temperature range;

[0039] 2. Through the opening of the through hole, the liquid nitrogen is directly discharged into the coolant to cool the coolant directly. At this time, there is no need to coil the cooling pipe or set up multiple groups to achieve a better cooling effect;

[0040] 3. By setting up a heat-conducting pipe, the exhaust gas is heated before passing through the gas flow meter, or by setting up a heating vaporizer, cooperating with the setting of the gas exhaust component and the third pipe, the coolant discharged from the third pipe is used as a liquid heating medium to further heat the gas discharged from the vaporizer to be tested, thereby improving the detection accuracy of the gas flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a process flow chart of the water bath vaporizer testing device of Example 1 of the present application;

[0042] Figure 2 is a schematic structural diagram of a water bath vaporizer testing device in Example 2 of the present application;

[0043] Figure 3It is a schematic diagram of the explosion structure of the water bath vaporizer testing device in Example 2 of the present application;

[0044] Figure 4 is a schematic diagram of the structure of the coolant container and the cooling pipe in Example 3 of the present application;

[0045] Figure 5 is a process flow chart of a water bath vaporizer testing device according to Example 4 of the present application;

[0046] Figure 6 It is a structural schematic diagram of the water bath vaporizer testing device in Example 4 of the present application.

[0047] Description of reference numerals:

[0048] 1. Carburetor to be tested; 10. First coolant channel; 11. First gas channel;

[0049] 2. Coolant return assembly;

[0050] 20. Coolant container; 200. Cover; 201. Heating tube; 202. Third temperature sensor;

[0051] 21. cooling pipe; 210. horizontal portion; 211. through hole;

[0052] 22. Adjust the pipeline; 220. Adjust the stop valve;

[0053] 23, first pipeline; 230, water pump; 231, second pipeline; 232, first temperature sensor; 233, pressure sensor; 234, third pipeline; 235, liquid flow meter; 236, liquid circuit stop valve;

[0054] 24. Support rod;

[0055] 3. Liquid gas supply components;

[0056] 4. Gas exhaust assembly; 40. Fourth pipeline; 41. Heat transfer pipeline; 42. Fifth pipeline; 43. Exhaust pipeline; 44. Second temperature sensor; 45. Gas flow meter; 46. Gas circuit stop valve;

[0057] 5. Heating vaporizer; 50. Second coolant channel; 51. Second gas channel; 52. Sixth pipeline; 53. Seventh pipeline; 54. Eighth pipeline; 55. Buffer tank. DETAILED DESCRIPTION

[0058] The following is combined with Figure 1 -Attached Figure 6 , further details of this application are given.

[0059] The water bath vaporizer to be tested, hereinafter referred to as the vaporizer to be tested, comprises a first coolant channel and a first gas channel. The first coolant channel is used to pass liquid heating medium, and the first gas channel is used to pass low-temperature liquid gas. The liquid heating medium exchanges heat with the low-temperature liquid gas, so that the low-temperature liquid gas absorbs heat and vaporizes into gaseous gas, which is discharged through the gas outlet end of the first gas channel for use.

[0060] Embodiment 1:

[0061] Embodiment 1 of the present application discloses a water bath carburetor testing device, which is used to quickly verify the performance of the water bath carburetor under various temperature conditions without relying on the actual use of the vehicle, wherein each temperature condition includes the operating temperature range of the water bath carburetor, which may specifically include -30°C, -20°C, -10°C, 0°C, 20°C, 40°C, 60°C, and 80°C. The above temperature range is included in the temperature control range that the coolant supply return component 2 can reach, refer to Figure 1 and Figure 2The water bath vaporizer test device includes a coolant supply return component 2 which is cyclically connected to the first coolant channel 10, a liquid gas supply component 3 which is connected to the liquid inlet end of the first gas channel 11, and a gas exhaust component 4 which is connected to the gas outlet end of the first gas channel 11. The coolant supply return component 2 is used to continuously provide coolant of a predetermined temperature to the vaporizer 1 to be tested through the liquid inlet end of the first coolant channel 10 during the test process. The coolant of the predetermined temperature passes through the first coolant channel 10 and is discharged through the liquid outlet end of the first coolant channel 10, and then is received and processed by the coolant supply return component 2 to form a circulating liquid supply passage between the coolant supply return component 2 and the vaporizer 1 to be tested; a first temperature sensor 232 is provided on the passage connecting the coolant supply return component 2 with the liquid inlet end of the first coolant channel 10, which is used to detect the temperature T1 of the coolant on the passage; a liquid flow meter 235 is provided on the passage connecting the coolant supply return component 2 with the first coolant channel 10 in a circulation manner, which is used to obtain the flow rate Q1 on the passage, that is, the position where the liquid flow meter 235 is set can be before the first coolant channel 10 or after the first coolant channel 10; optionally, a matching A liquid circuit stop valve 236 is provided to control the flow rate of the coolant; the liquid gas supply component 3 is used to introduce the liquid gas to be gasified into the liquid inlet end of the first gas channel 11, which can be a liquid nitrogen container. The liquid nitrogen container is connected to the liquid inlet end of the first gas channel 11 through a pipeline, and the liquid nitrogen container itself carries a pressure measuring device for measuring the pressure in the liquid nitrogen container; the gas exhaust component 4 is used to discharge the gas discharged through the gas outlet end of the first gas channel 11, and the gas exhaust component 4 is equipped with a second temperature sensor 44, a gas flow meter 45, and a gas circuit stop valve 46. The gas circuit stop valve 46 is used to regulate the gas flow rate of the exhaust gas, the second temperature sensor 44 is used to detect the temperature T2 of the exhaust gas, and the gas flow meter 45 is used to obtain the flow rate Q2 of the exhaust gas. In this embodiment, the gas exhaust component 4 is set as an exhaust pipeline 43 connected to the first gas channel 11, and the second temperature sensor 44, the gas flow meter 45, and the gas circuit stop valve 46 are equipped on the exhaust pipeline 43;

[0062] Reference Figure 2 and Figure 3 , the coolant supply return assembly 2 comprises:

[0063] i. A coolant container 20, in which a coolant for circulation is stored. At least one third temperature sensor 202 is provided in the coolant container 20 for detecting the temperature of the coolant. A cooling tube 21 is provided in the coolant container 20, and the coolant stored in the coolant container 20 is cooled by the cooling tube 21. The cooling method of the cooling tube 21 can be to connect the liquid nitrogen container through the liquid inlet end of the cooling tube 21, and the liquid nitrogen container introduces liquid nitrogen into the cooling tube 21, and the liquid nitrogen cools the coolant in the coolant container 20 through the cooling tube 21; the cooling tube 21 can be one or more groups, and each group of cooling tubes 21 can be set in the coolant container 20 in a U-shaped, S-shaped, etc. mode, all subject to the cooling demand; the top of the coolant container 20 is open, and a detachable cover 200 can be installed in matching, and the cover 200 can be not provided, but when the cooling method selected at the cooling stage is provided by liquid nitrogen, the top of the coolant container 20 is temporarily covered by the cover 200 to reduce the volatilization of liquid nitrogen;

[0064] In order to quickly verify the performance of the water bath vaporizer under various temperature conditions, in another embodiment / mode, a heating tube 201 is further provided in the coolant container 20. The number of the heating tubes 201 can be one or two, depending on the heating requirement. The heat source of the heating tube 201 can be to heat the coolant by electric heating.

[0065] ii. A coolant supply pipeline, which includes a first pipeline 23 connected to the lower end of the coolant container 20 at one end, a water pump 230 connected to the liquid outlet end of the first pipeline 23, and a second pipeline 231 connected to the liquid outlet end of the water pump 230. The other end of the second pipeline 231 is connected to the liquid inlet end of the first coolant channel 10. The coolant supply pipeline forms a communication passage between the coolant container 20 and the liquefier to be tested, wherein the lower end of the coolant container 20 can be specifically the bottom end of the coolant container 20 (at this time, the coolant container 20 is hoisted or separated from the ground support setting), or it can be a position near the bottom of the side wall of the coolant container 20, the purpose is to facilitate the cooling of the coolant; the water pump 230 is used to provide power to extract the coolant from the coolant container 20, which can be a variable frequency water pump 230 or a non-variable frequency water pump 230, refer to Figure 1 When it is a non-variable frequency water pump 230, a regulating pipeline 22 is provided in communication with the second pipeline, a regulating stop valve 220 is provided on the regulating pipeline 22, and a free end of the regulating pipeline 22 is in communication with the coolant container 20, so as to regulate the flow rate Q1 of the liquid in the second pipeline through the second pipeline in cooperation with the regulating stop valve 220;

[0066] Of course, in order to assist in judging the operation of the water bath type vaporizer test device, in another embodiment / mode, the second pipe 231 and the third pipe 234 are both provided with pressure sensors 233. The pressure sensor 233 on the second pipe 231 is used to detect the pressure P1 at the liquid inlet end of the first coolant channel 10 of the vaporizer 1 to be tested, and the pressure sensor 233 on the third pipe 234 is used to detect the pressure P2 at the liquid outlet end of the first coolant channel 10 of the vaporizer 1 to be tested. During the application process, the obstruction of the vaporizer to the coolant can be assisted in judging according to the difference between the pressures P1 and P2; it can also be judged according to the difference between the pressures P1 and P2 whether the coolant inside the vaporizer is frozen, that is, whether it flows smoothly, and then judge the severity of the vaporizer 1 to be tested not meeting the requirements;

[0067] iii. a coolant return pipeline, comprising a third pipeline 234 whose one end is connected to the liquid outlet of the first coolant channel 10, wherein the first temperature sensor 232 and the liquid flow meter 235 can be specifically arranged on the second pipeline 231, and optionally, the liquid flow meter 235 can also be arranged on the third pipeline 234, and the other end of the third pipeline 234 is connected to a recovery container for recovering the returned coolant;

[0068] Since the change in the coolant temperature by the vaporizer 1 to be tested is small during the test, the coolant discharged through the vaporizer 1 to be tested can directly flow back into the coolant container 20 without affecting the use of the entire device. Therefore, in another embodiment / method, there is no need to additionally set up a recovery container. The other end of the third pipe 234 is connected to the high end of the coolant container 20, and the returned coolant can be directly discharged into the coolant container 20. The high end of the coolant container 20 can specifically be the top end of the coolant container 20, or it can be the position where the side wall of the coolant container 20 is located above the coolant inside it, with the purpose of receiving the returned coolant while reducing the impact on the discharge of liquid through the first pipe 23.

[0069] The implementation principle of Example 1 of the present application is as follows: for a vehicle of a certain model, its coolant flow rate Q1 is determined, and different temperatures T1 are set (because the ambient temperature changes, different temperature requirements need to be met during the test of the water bath vaporizer), and the gas circuit also has a range value of flow requirement and a range value of temperature requirement; therefore, during the test, the preset test conditions are determined, including the preset temperature T1, flow rate Q1, and flow rate Q2; the coolant is made to reach the required temperature through the cooling pipe 21 and the heater, the coolant supply flow rate Q1 is adjusted, and the gas required flow rate Q2 is adjusted; simulation operation is performed, and the exhaust gas temperature T2 is used to determine whether the performance of the vaporizer 1 to be tested meets the usage requirements at the corresponding preset temperature T1.

[0070] Embodiment 2:

[0071] Embodiment 2 of the present application discloses a water bath vaporizer testing device. Since the water bath vaporizer testing device disclosed in the present application includes detecting the performance of the water bath vaporizer under low temperature environment, and the gas flow meter 45 has a low detection accuracy under low temperature conditions, in order to improve the measurement accuracy of the gas flow meter 45 when detecting the performance of the water bath vaporizer under low temperature environment, the difference between this embodiment and embodiment 1 is that, with reference to Figure 2 and Figure 3 The gas exhaust component 4 is configured as follows: it includes a fourth pipeline 40, a heat-conducting pipeline 41, and a fifth pipeline 42 which are connected in sequence, wherein the free end of the fourth pipeline 40 is connected to the gas outlet end of the first gas channel 11, and the second temperature sensor 44 and the gas circuit stop valve 46 are arranged on the fourth pipeline 40. Optionally, the gas circuit stop valve 46 can also be arranged on the fifth pipeline 42; the heat-conducting pipeline 41 is made of a heat-conducting material, specifically copper material, and is used to increase the gas temperature in the heat-conducting pipeline 41 through the air temperature. The length of the heat-conducting pipeline 41 is set to 2-4m, which can be 2m, 3m, or 4m, as long as the set length can achieve the effect of increasing the gas temperature in the heat-conducting pipeline 41. In the embodiment of the present application, it is set to 3m; the gas flowmeter 45 is arranged on the fifth pipeline 42.

[0072] The implementation principle of Example 2 of the present application is: the gas discharged through the liquefied gas to be tested passes through the fourth pipeline 40, the heat conduction pipeline 41, and the fifth pipeline 42 in sequence. When the gas passes through the heat conduction pipeline 41, it is heated up and then passes through the gas flow meter 45 of the fifth pipeline 42, thereby improving the measurement accuracy of the gas flow meter 45.

[0073] Embodiment 3:

[0074] Embodiment 3 of the present application discloses a water bath type vaporizer testing device, which uses a liquid nitrogen container as a cold source for the cooling tube 21. The difference between this embodiment and embodiment 1 is that, with reference to Figure 4 , a plurality of through holes 211 are provided at intervals on the cooling tube 21, and the plurality of through holes 211 are used to discharge liquid nitrogen directly into the cooling liquid container 20, so as to improve the cooling effect on the cooling liquid in the cooling liquid container 20. At this time, the cooling tube 21 does not need to be set as multiple groups, nor does it need to be set as a complex winding structure, so as to achieve a better cooling effect on the cooling liquid. The number of the plurality of through holes 211 can be 4, 5, or 6, as long as the set number can achieve the direct introduction of liquid nitrogen into the cooling liquid in the cooling liquid container 20 and achieve the set temperature requirement at the same time. In order to reduce the probability of freezing while introducing liquid nitrogen through the through hole 211, the aperture of the through hole 211 is set to 8-12 mm, which can be 8 mm, 10 mm, or 12 mm. In the present embodiment, the number of the through holes 211 is set to 6, and the aperture is set to 10 mm;

[0075] In order to further improve the cooling effect, the coolant container 20 is set to a rectangular parallelepiped shape, and the cooling pipe 21 is set to include a horizontal portion 210 located in the middle of the extension direction of the coolant container 20. The horizontal pipe is extended along the width direction of the coolant container 20, and a plurality of through holes 211 are as evenly distributed as possible on both sides of the horizontal pipe. In this embodiment, three through holes 211 are set on each side of the horizontal pipe, and the three through holes 211 divide the horizontal portion 210 equally along the length direction of the horizontal portion 210;

[0076] In order to improve the support for the cooling pipe 21 in the coolant container 20 , a supporting rod 24 may be provided for the matching cooling pipe 21 . The supporting rod 24 is installed in the coolant container 20 and provides support for the cooling pipe 21 .

[0077] The implementation principle of Example 3 of the present application is as follows: a liquid nitrogen container serving as a cold source provides liquid nitrogen to the cooling tube 21, and a portion of the liquid nitrogen is directly discharged into the coolant through the through hole 211 on the cooling tube 21, and the liquid nitrogen dissolves in the coolant to regulate the temperature of the coolant; another portion of the liquid nitrogen passes through the cooling tube 21 and is discharged from the gas outlet end of the cooling tube 21, and in the process of passing through the cooling tube 21, the temperature of the coolant is regulated.

[0078] Embodiment 4:

[0079] Example 4 of the present application discloses a water bath vaporizer testing device. In order to improve the measurement accuracy of the gas flow meter 45 when testing the performance of the water bath vaporizer in a low temperature environment, as in Example 2, Figure 5 and Figure 6 The difference between this embodiment and embodiment 1 is that:

[0080] The water bath type vaporizer test device further comprises a heating vaporizer 5, and the heating vaporizer 5 comprises a second coolant channel 50 and a second gas channel 51 which can be arranged for heat exchange;

[0081] The other end (liquid outlet end) of the third pipe 234 is connected to the liquid inlet end of the second coolant channel 50, and the second coolant channel 50 is used to receive the coolant discharged through the third pipe 234. Further, the liquid outlet end of the second coolant channel 50 is connected to the sixth pipe 52, and the other end of the sixth pipe 52 is connected to a recovery container for recovering the returned coolant. In the test process, since the temperature change of the coolant by the vaporizer 1 to be tested is small, the coolant discharged by the vaporizer 1 to be tested can be directly returned to the coolant container 20 without affecting the use of the entire device. Therefore, in another embodiment / mode, there is no need to set up an additional recovery container, and the other end of the sixth pipe 52 is connected to the high end of the coolant container 20, and the returned coolant can be directly discharged into the coolant container 20.

[0082] The gas outlet end of the first gas channel 11 and the liquid inlet end of the second gas channel 51 are connected through a seventh pipeline 53, and the second temperature sensor 44 is arranged on the seventh pipeline 53; the gas outlet end of the second gas channel 51 is connected to an eighth pipeline 54, and a gas flow meter 45 and a gas circuit stop valve 46 are arranged on the eighth pipeline 54;

[0083] In combination with the above mechanisms, the coolant discharged from the third pipe 234 is transmitted to the second liquid channel, and the gas discharged from the vaporizer 1 to be tested is discharged to the second gas channel 51 through the seventh pipe 53, so that the coolant discharged from the third pipe 234 is used as a liquid heating medium to further heat the gas discharged from the vaporizer 1 to be tested, and the gas temperature passing through the gas flow meter 45 is increased without affecting the flow rate, thereby improving the measurement accuracy of the gas flow meter 45;

[0084] In order to further improve the stability of gas discharge, a buffer tank 55 is provided between the gas circuit stop valve 46 of the eighth pipeline 54 and the pressure sensor 233 support.

[0085] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water bath type vaporizer testing device, wherein the vaporizer to be tested (1) comprises a first coolant channel (10) and a first gas channel (11), characterized in that: The test setup includes: A coolant supply return component (2) which is in circulation communication with the first coolant channel (10) and is used to circulate coolant to the vaporizer (1) to be tested, wherein a first temperature sensor (232) is provided on a passage communicating with the liquid inlet end of the coolant supply return component (2) and a liquid flow meter (235) is provided on a passage communicating with the first coolant channel (10); A liquid gas supply assembly (3) connected to the liquid inlet end of the first gas channel (11); a gas exhaust component (4), which is connected to the gas outlet end of the first gas channel (11), and a second temperature sensor (44), a gas flow meter (45), and a gas path stop valve (46) are provided on the connecting passage; The cooling liquid supply return assembly (2) comprises: A cooling liquid container (20) having a cooling pipe (21) disposed therein; The liquid inlet end of the cooling tube (21) is connected to a liquid nitrogen container, and a plurality of through holes (211) are provided at intervals on the cooling tube (21); The cooling pipe (21) comprises a horizontal portion (210) located in the middle of the cooling liquid container (20), and a plurality of through holes (211) are evenly distributed on both sides of the horizontal pipe; The diameter of the through hole (211) is 8-12 mm; A heating pipe (201) is provided in the cooling liquid container (20); It also includes a heating vaporizer (5) for further heating the gas discharged from the vaporizer to be tested, wherein the heating vaporizer (5) includes a second coolant channel and a second gas channel (51); A third pipe (234) is connected between the liquid inlet end of the second coolant channel and the liquid outlet end of the first coolant channel (10), and the liquid outlet end of the second coolant channel is connected to a sixth pipe (52), wherein the other end of the sixth pipe (52) is connected to the high end of the coolant container (20), or the other end of the sixth pipe (52) is connected to a recovery container; The gas exhaust component (4) arranged in cooperation with the heating vaporizer (5) further comprises: a seventh pipeline (53), two ends of which are respectively connected to the gas outlet end of the first gas channel (11) and the liquid inlet end of the second gas channel (51), and the second temperature sensor (44) is arranged on the seventh pipeline (53); An eighth pipeline (54) has one end connected to the gas outlet end of the second gas channel (51), and the gas flow meter (45) and the gas path stop valve (46) are arranged on the eighth pipeline (54); this arrangement utilizes the residual heat of the coolant to further heat the gas discharged from the vaporizer to be measured, thereby improving the measurement accuracy of the gas flow meter; Alternatively, the gas exhaust component (4) is provided separately, comprising a fourth pipe (40), a heat-conducting pipe (41), and a fifth pipe (42) which are connected in sequence, wherein the free end of the fourth pipe (40) is connected to the gas outlet end of the first gas channel (11), the second temperature sensor (44) is provided on the fourth pipe (40), the length of the heat-conducting pipe (41) is 2-4 m, and the gas flow meter (45) is provided on the fifth pipe (42); by providing the heat-conducting pipe (41), the discharged gas is heated by the heat in the environment before passing through the gas flow meter, thereby improving the detection accuracy of the gas flow meter.

2. The water bath vaporizer testing device according to claim 1, characterized in that: The cooling liquid supply return assembly (2) comprises: A cooling liquid supply pipeline, comprising a first pipeline (23) having one end connected to the lower end of the cooling liquid container (20), a water pump (230) connected to the liquid outlet end of the first pipeline (23), and a second pipeline (231) connected to the liquid outlet end of the water pump (230), wherein the other end of the second pipeline (231) is connected to the liquid inlet end of the first cooling liquid channel (10), wherein the first temperature sensor (232) and the liquid flow meter (235) are arranged on the second pipeline (231); A coolant return pipeline, comprising a third pipe (234) having one end connected to the liquid outlet of the first coolant channel (10), wherein the other end of the third pipe (234) has two connection modes, one of which is connected to the high end of the coolant container (20), or the other end of the third pipe (234) is connected to a recovery container, and the other is connected to the liquid inlet of the second coolant channel, the liquid outlet of the second coolant channel is connected to a sixth pipe (52), the other end of the sixth pipe (52) is connected to the high end of the coolant container (20), or the other end of the sixth pipe (52) is connected to a recovery container.

3. The water bath vaporizer testing device according to claim 1, characterized in that: The coolant container (20) is in a rectangular shape, and the horizontal tube is extended along the width direction of the coolant container (20).

4. The water bath vaporizer testing device according to claim 1, characterized in that: A buffer tank (55) is provided on the eighth pipeline (54) between the gas circuit stop valve (46) and the gas flow meter (45).

5. The water bath vaporizer testing device according to claim 2, characterized in that: The second pipeline (231) and the third pipeline (234) are both provided with pressure sensors (233).

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