An evaporation rate testing device

Abstract

The utility model provides an evaporation rate testing device, including a test pipeline and a connecting pipe, wherein the test pipeline is detachably connected to a container to be tested through the connecting pipe. The test pipeline includes a temperature return device, a test pressure gauge, a test thermometer and a mass flow meter which are connected in sequence. The inlet of the temperature return device is connected to the container to be tested, and can heat the outflowing medium to accelerate the flow and evaporation rate of the medium. The test pressure gauge and the test thermometer are respectively used to detect the pressure and temperature of the medium in the test pipeline, so that the medium in the test pipeline is within the preset pressure value and temperature for testing. The mass flow meter is used to collect the mass and flow of the medium flowing through the test pipeline per unit time, and calculate the evaporation rate of the container to be tested through the mass and flow. Since the temperature return device can heat the medium, the evaporation efficiency of the medium is improved, and condensation and freezing of the low-temperature medium is avoided, the test efficiency can be increased.

Description

Technical Field

[0001] The utility model relates to the field of low-temperature container detection, in particular to an evaporation rate testing device. Background Art

[0002] With the increasing use of vacuum equipment in the industry in recent years, especially the application of cryogenic storage tanks for liquefied gas, the liquefied gas will evaporate during the storage and transportation of liquefied gas in cryogenic storage tanks, which will lead to waste of liquefied gas, reduce the quality of liquefied gas itself, and even have a certain impact on the safety of production lines and workers. Therefore, the static evaporation rate of cryogenic storage tanks is a very important performance indicator.

[0003] However, the existing evaporation rate detection equipment has a relatively complex structure, is not convenient for disassembly and transportation, and is not convenient for remote detection, which affects the application of the detection equipment. Utility Model Content

[0004] The utility model aims to provide an evaporation rate testing device, which can accelerate the detection speed and is convenient for disassembly and transportation.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] An evaporation rate testing device comprises: a test pipeline for detecting the evaporation rate of a container to be tested; the test pipeline comprises a regenerator, a test pressure gauge, a test thermometer, and a mass flowmeter which are connected in sequence; the inlet of the regenerator is connected to the container to be tested, and is used to heat the medium flowing out of the container to be tested; the test pressure gauge is used to test the pressure in the pipeline; the test thermometer is used to test the temperature of the medium in the pipeline; the mass flowmeter is used to collect the mass and flow rate of the medium flowing through the test pipeline per unit time; and a connecting pipe, one end of which is detachably connected to the container to be tested; the other end of the connecting pipe is connected to the inlet of the regenerator, so that the test pipeline can be detachably connected to the container to be tested through the connecting pipe.

[0007] In one embodiment of the present application, the evaporation rate testing device further includes a purge assembly; the purge assembly is connected between the container to be tested and the connecting pipe to purge and vent the air in the test pipeline.

[0008] In one embodiment of the present application, the evaporation rate testing device further includes a vent valve; the vent valve is connected to the outlet of the test pipeline to vent the medium in the test pipeline when the container to be tested is stationary.

[0009] In one embodiment of the present application, the evaporation rate testing device further includes an atmospheric pressure gauge; the atmospheric pressure gauge is connected to the outside of the test pipeline to detect the ambient air pressure of the test pipeline.

[0010] In one embodiment of the present application, the evaporation rate testing device further includes an ambient thermometer; the ambient thermometer is connected to the outside of the test pipeline to detect the ambient temperature of the test pipeline.

[0011] In one embodiment of the present application, the evaporation rate testing device further includes an environmental humidity meter; the environmental humidity meter is connected to the outside of the test pipeline to detect the environmental humidity of the test pipeline.

[0012] In one embodiment of the present application, the evaporation rate testing device further includes a grounding component; the grounding component is connected between the testing pipeline and the ground to eliminate static electricity or electromagnetic interference generated during the operation of the device.

[0013] In one embodiment of the present application, the evaporation rate testing device further includes a connecting valve; the connecting valve is connected between the container to be tested and the connecting pipe to control the connection or disconnection between the container to be tested and the connecting pipe.

[0014] In one embodiment of the present application, the connecting pipe is a metal hose to connect between the test pipeline and the container to be tested.

[0015] In one embodiment of the present application, the purge assembly includes a needle valve and a purge tube; one end of the purge tube is connected to the container to be inspected and is located between the connecting tube and the container to be inspected; the other end of the purge tube is connected to the needle valve so that the needle valve can control the connection or closing of the purge tube.

[0016] It can be seen from the above technical solution that the utility model has at least the following advantages and positive effects:

[0017] In the utility model, the evaporation rate test device includes a test pipeline and a connecting pipe, and the test pipeline includes a reheater, a test pressure gauge, a test thermometer and a mass flowmeter which are connected in sequence. The inlet of the reheater is connected to the container to be tested so that the outflowing medium can be heated to accelerate the flow and evaporation rate of the medium. The test pressure gauge and the test thermometer are respectively used to detect the medium pressure and medium temperature in the test pipeline, so that the medium in the test pipeline is within the preset pressure value and temperature for detection. The mass flowmeter is used to collect the mass and flow of the medium flowing through the test pipeline per unit time, so as to calculate the evaporation rate of the container to be tested through the mass and flow. Since the reheater can heat the medium, the evaporation efficiency of the medium is improved, and the condensation and freezing of the low-temperature medium is avoided, so that the test efficiency can be increased. And the mass flowmeter can perform remote data acquisition, so that the evaporation rate test device can be remotely tested.

[0018] At the same time, the test pipeline is detachably connected to the container to be tested through the connecting pipe, so that the test pipeline can be quickly connected to the container to be tested, or detached from the container to be tested, thereby facilitating the use and transportation of the test pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of an evaporation rate testing device according to an embodiment of the utility model.

[0020] The following are the descriptions of the reference numerals:

[0021] 1-Container to be tested; 10-Test pipeline; 11-Regenerator; 12-Test pressure gauge; 13-Test thermometer; 14-Mass flow meter; 15-Connecting pipe; 16-Vent valve; 17-Grounding assembly; 20-Purge assembly; 21-Needle valve; 22-Purge pipe; 31-Atmospheric pressure gauge; 32-Environmental thermometer; 33-Environmental hygrometer; 40-Connecting valve. DETAILED DESCRIPTION

[0022] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0023] In the description of the present invention, it should be understood that in the embodiments shown in the drawings, the indications of directions or positional relationships (such as up, down, left, right, front and back, etc.) are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the indications of these directions also change accordingly.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In the process of storing and transporting liquefied gas in cryogenic tanks, liquefied gas will evaporate, which will lead to waste of liquefied gas, reduce the quality of the liquefied gas itself, and even have a certain impact on the safety of production lines and workers. Therefore, the static evaporation rate of cryogenic tanks is a very important performance indicator. However, the existing evaporation rate detection equipment has a relatively complex structure, and is not convenient for disassembly and transportation, nor is it convenient for remote detection, which affects the application of the detection equipment. At the same time, since the cryogenic tank stores low-temperature media, the evaporation rate of the medium is slow due to the influence of low temperature, resulting in a long test cycle. In addition, during the test, the test equipment is easily frozen due to the low temperature, thereby affecting the test efficiency. Therefore, an evaporation rate testing device is proposed to solve the above problems.

[0026] The scheme is further illustrated by the following examples:

[0027] See also Figure 1 The evaporation rate testing device of this embodiment is used to test the evaporation rate of a gas medium container, such as the evaporation rate of a low-temperature gas medium container. Specifically, the evaporation rate testing device includes a test pipeline 10 and a connecting pipe 15, and the test pipeline 10 is detachably connected to the container 1 to be tested through the connecting pipe 15, so as to facilitate the rapid installation and removal of the test pipeline 10, thereby facilitating the disassembly and transportation of the device.

[0028] In this embodiment, the test pipeline 10 is used to detect the evaporation rate of the container to be tested 1. The test pipeline 10 includes a temperature return device 11, a test pressure gauge 12, a test thermometer 13 and a mass flow meter 14 which are connected in sequence.

[0029] The inlet of the temperature return device 11 is connected to the container to be detected 1, and is used to heat the medium flowing out of the container to be detected 1 to increase the temperature of the medium and accelerate the evaporation rate of the medium. At the same time, the medium is heated by the temperature return device 11 to prevent the low-temperature medium from condensing and freezing.

[0030] The test pressure gauge 12 is used to test the pressure in the test pipeline 10 so as to monitor the medium pressure in the test pipeline 10 in real time. The test thermometer 13 is used to test the temperature of the medium in the test pipeline 10 so as to monitor the medium temperature in the test pipeline 10 in real time.

[0031] The mass flow meter 14 is used to collect the mass and flow rate of the medium flowing through the test pipeline 10 per unit time, so as to calculate the evaporation rate of the container 1 to be tested by the mass and flow rate collected by the mass flow meter 14. The mass flow meter 14 can transmit and collect data remotely, so that the test device can be remotely controlled and remotely tested.

[0032] In this embodiment, one end of the connecting tube 15 is detachably connected to the container to be tested 1, and the other end of the connecting tube 15 is connected to the inlet of the reheater 11, so that the test pipeline 10 can be detachably connected to the container to be tested 1 through the connecting tube 15, thereby facilitating the test equipment to be quickly connected to the container to be tested 1, or to be disassembled from the container to be tested 1.

[0033] Specifically, in this embodiment, the connecting pipe 15 is a metal hose and is connected between the test pipeline 10 and the container 1 to be tested, so that the test pipeline 10 can be flexibly connected to the container 1 to be tested through the connecting pipe 15, thereby facilitating the connection between the test pipeline 10 and the container 1 to be tested.

[0034] It should be noted that, in the present embodiment, the test pipeline 10 is integrated and installed on a base to facilitate the overall disassembly and transportation of the test pipeline 10 .

[0035] In addition, the heat exchange area of ​​the regenerator 11 can be set according to actual needs to improve the reaction time of the medium heating, thereby improving the heating effect. At the same time, the medium is heated by the regenerator 11 to change the temperature of the medium, so that the container 1 to be tested can be tested at different medium temperatures to obtain the evaporation rate of the container 1 to be tested at different temperatures. Therefore, by heating the medium by the regenerator 11, different experimental environment temperatures can be quickly simulated, so as to more accurately obtain the evaporation rate of the container 1 to be tested at different temperatures.

[0036] In addition, in the present embodiment, the test pressure gauge 12 is a precision pressure gauge to measure the medium pressure in the test pipeline 10 in real time. At the same time, the test thermometer 13 is a bubble thermometer to measure the temperature of the medium in the test pipeline 10 in real time. It should be noted that the test pressure gauge 12 and the test thermometer 13 are both used to detect the temperature and pressure of the medium in the test pipeline 10 in real time, so that the pressure and temperature of the medium in the test pipeline 10 can be read in real time at different medium temperatures, thereby ensuring that the evaporation rate of the container 1 to be tested at different medium temperatures can be read more accurately.

[0037] In addition, the test device is also provided with a control center, and the control center is connected to the temperature return device 11, the test pressure gauge 12, the test thermometer 13 and the mass flow meter 14 to control the operation of the test pipeline 10. It should be noted that the control center can process the data fed back by the test pressure gauge 12, the test thermometer 13 and the mass flow meter 14 to obtain the evaporation rate of the container 1 to be tested.

[0038] See also Figure 1 The evaporation rate test device further includes a vent valve 16. The vent valve 16 is connected to the outlet of the test pipeline 10 to vent the medium in the test pipeline 10 when the container 1 to be tested is at rest, so as to prevent the residual medium in the test pipeline 10 from affecting the test result.

[0039] In this embodiment, when measuring the evaporation rate, the vent valve 16 needs to be opened to ensure that the medium in the container 1 to be tested flows along the test pipeline 10, and thus the vent valve 16 is discharged to the external environment. It should be noted that the vent valve 16 can be a solenoid valve or a manual valve to control the on-off of the outlet end of the test pipeline 10.

[0040] See also Figure 1 The evaporation rate test device also includes a purge assembly 20. The purge assembly 20 is connected between the container 1 to be tested and the connecting pipe 15 to purge and vent the air in the test pipeline 10. It should be noted that the outlet of the purge assembly 20 is a free end and is located in the external environment, so that the outlet of the purge assembly 20 can be used as an air inlet of the container 1 to be tested to fill the medium into the container 1 to be tested. Of course, the outlet of the purge assembly 20 can also be used as a purge port to purge the medium to the outlet of the purge assembly 20, thereby emptying the air in the test pipeline 10.

[0041] Specifically, in this embodiment, the purge assembly 20 includes a needle valve 21 and a purge pipe 22. One end of the purge pipe 22 is connected to the container 1 to be detected and is located between the connecting pipe 15 and the container 1 to be detected, and the other end of the purge pipe 22 is connected to the needle valve 21, so that the needle valve 21 can control the connection or closing of the purge pipe 22. In some other embodiments, the needle valve 21 can also be replaced by a solenoid valve to control the opening and closing of the purge pipe 22.

[0042] See also Figure 1 The evaporation rate test device further includes a connecting valve 40. The connecting valve 40 is connected between the container to be tested 1 and the connecting pipe 15 to control the connection or disconnection between the container to be tested 1 and the connecting pipe 15.

[0043] It should be noted that, in this embodiment, the purge pipe 22 is connected between the connecting valve 40 and the connecting pipe 15, so that the connection and disconnection of the purge pipe 22 and the container 1 to be detected is controlled by the connecting valve 40. That is, when the connecting valve 40 is opened, the purge pipe 22 can be connected to the container 1 to be detected, and then the container 1 to be detected is filled with a medium. Of course, at this time, the vent valve 16 is closed to prevent the filled medium from flowing out along the test pipeline 10. When the connecting valve 40 is closed, the purge pipe 22 can be connected to the test pipeline 10 to purge the test pipeline 10, and then the air in the test pipeline 10 is emptied.

[0044] See also Figure 1 The evaporation rate test device further includes a grounding component 17. The grounding component 17 is connected between the test pipeline 10 and the ground to eliminate static electricity or electromagnetic interference generated during the operation of the device.

[0045] It should be noted that the test device needs to be tested for dew point each time before use to ensure the measurement accuracy of the test device. At the same time, when the test device is working, the test device needs to be effectively grounded through the grounding component 17 to reduce the impact of the external environment on the device and improve the accuracy and reliability of the test device. In addition, the test device is grounded through the grounding component 17 to protect the operator from the hazard of electric shock.

[0046] See also Figure 1 The evaporation rate test device further includes an atmospheric pressure gauge 31, an ambient temperature gauge 32 and an ambient humidity gauge 33. The atmospheric pressure gauge 31 is connected to the outside of the test pipeline 10 to detect the ambient air pressure of the test pipeline 10. The ambient temperature gauge 32 is connected to the outside of the test pipeline 10 to detect the ambient temperature of the test pipeline 10. The ambient humidity gauge 33 is connected to the outside of the test pipeline 10 to detect the ambient humidity of the test pipeline 10.

[0047] It should be noted that the atmospheric pressure gauge 31, the ambient temperature meter 32 and the ambient humidity meter 33 are used to monitor the external environment of the test device in real time to reduce the impact of external environmental changes on the measurement results of the test device, thereby improving the accuracy of the evaporation rate test.

[0048] In summary, the evaporation rate testing device comprises a test pipeline 10 composed of a temperature return device 11, a test pressure gauge 12, a test thermometer 13 and a mass flow meter 14. The medium is heated by the temperature return device 11 to increase the evaporation rate of the medium, and the mass and flow rate flowing per unit time are collected by the mass flow meter 14, so as to test the evaporation rate of the container 1 to be tested by the flow meter method, thereby improving the test speed and accuracy.

[0049] At the same time, the test pipeline 10 is detachably connected to the container 1 to be tested via the connecting pipe 15 to facilitate the movement and transportation of the test pipeline 10, thereby facilitating the use of the test device.

[0050] It should be noted that, in this embodiment, before the test device is tested, it is necessary to conduct an airtightness test on the test device to ensure that the test device has no abnormal leakage, thereby ensuring the accuracy of the measuring device.

[0051] At the same time, after the test is qualified, the medium is filled into the container 1 to be tested through the purge assembly 20. After the medium filling is completed, the container 1 to be tested needs to be left to stand for at least 48 hours. In addition, during the standing period, the vent valve 16 needs to be opened to eliminate the influence of the pressure and residual gas in the test pipeline 10 on the test structure, so as to ensure that the pressure and gas components in the test pipeline 10 reach a balanced state, thereby improving the accuracy and reliability of the test.

[0052] Although the utility model has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the utility model can be implemented in a variety of forms without departing from the spirit or essence of the utility model, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. An evaporation rate testing device, characterized in that: include: A test pipeline is used to detect the evaporation rate of the container to be tested; the test pipeline includes a reheater, a test pressure gauge, a test thermometer, and a mass flowmeter which are connected in sequence; the inlet of the reheater is connected to the container to be tested, and is used to heat the medium flowing out of the container to be tested; the test pressure gauge is used to test the pressure in the pipeline; the test thermometer is used to test the temperature of the medium in the pipeline; the mass flowmeter is used to collect the mass and flow of the medium flowing through the test pipeline per unit time; A connecting pipe, one end of which is detachably connected to the container to be tested; the other end of the connecting pipe is connected to the inlet of the temperature return device, so that the test pipeline can be detachably connected to the container to be tested through the connecting pipe.

2. The evaporation rate testing device according to claim 1, characterized in that: It also includes a purge assembly; the purge assembly is connected between the container to be tested and the connecting pipe to purge and vent the air in the test pipeline.

3. The evaporation rate testing device according to claim 1, characterized in that: It also includes a vent valve; the vent valve is connected to the outlet of the test pipeline to vent the medium in the test pipeline when the container to be tested is stationary.

4. The evaporation rate testing device according to claim 1, characterized in that: It also includes an atmospheric pressure gauge; the atmospheric pressure gauge is connected to the outside of the test pipeline to detect the ambient air pressure of the test pipeline.

5. The evaporation rate testing device according to claim 1, characterized in that: It also includes an environmental thermometer; the environmental thermometer is connected to the outside of the test pipeline to detect the environmental temperature of the test pipeline.

6. The evaporation rate testing device according to claim 1, characterized in that: It also includes an environmental humidity meter; the environmental humidity meter is connected to the outside of the test pipeline to detect the environmental humidity of the test pipeline.

7. The evaporation rate testing device according to claim 1, characterized in that: It also includes a grounding component; the grounding component is connected between the test pipeline and the ground to eliminate static electricity or electromagnetic interference generated during the operation of the device.

8. The evaporation rate testing device according to claim 1, characterized in that: It also includes a connecting valve; the connecting valve is connected between the container to be detected and the connecting pipe to control the connection or disconnection between the container to be detected and the connecting pipe.

9. The evaporation rate testing device according to claim 1, characterized in that: The connecting pipe is a metal hose, so as to be connected between the test pipeline and the container to be tested.

10. The evaporation rate testing device according to claim 2, characterized in that: The purge assembly includes a needle valve and a purge tube; one end of the purge tube is connected to the container to be tested and is located between the connecting tube and the container to be tested; the other end of the purge tube is connected to the needle valve so that the needle valve can control the connection or closing of the purge tube.

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