CN114264572A - Static evaporation rate testing device for low-temperature liquid container - Google Patents
Static evaporation rate testing device for low-temperature liquid container Download PDFInfo
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- 230000003068 static effect Effects 0.000 title claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 238000005485 electric heating Methods 0.000 claims abstract description 16
- 238000004880 explosion Methods 0.000 claims abstract description 14
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- 238000005457 optimization Methods 0.000 description 3
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- 238000013500 data storage Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The invention relates to the technical field of low-temperature liquid storage, in particular to a static evaporation rate testing device for a low-temperature liquid container, which comprises a mainframe box, wherein a gas testing pipeline is arranged in the mainframe box; the gas testing pipeline comprises a gas inlet pipe section which is used for connecting a low-temperature liquid container to obtain the evaporated gas, an air temperature heating section and an electric heating section which are used for heating are sequentially connected behind the gas inlet pipe section, and the gas testing pipeline is also connected with a temperature transmitter which is used for detecting the temperature, an air mass flow meter which is used for metering and an exhaust pipe section; an explosion-proof case is also arranged in the main case, a processor assembly is arranged in the explosion-proof case, and the processor assembly is connected with the temperature transmitter and the air mass flow meter; a temperature and humidity detection device and an air pressure detection device are also arranged in the mainframe box and are connected with the processor assembly; and the main case is also provided with a display interaction device. The invention has high integration, can quickly test and maintain the detection precision at any time, ensures the reliable stability of heating, and avoids potential safety hazards such as explosion and the like.
Description
Technical Field
The invention relates to the technical field of low-temperature liquid storage, in particular to a device for testing the static evaporation rate of a low-temperature liquid container.
Background
Cryogenic liquids are easily vaporized at normal temperatures and are generally stored and maintained at low temperature levels in sealed containers in order to maintain the form of the cryogenic liquid and to store and transport it at normal temperatures. The container for containing cryogenic liquid has the difference of cold insulation effect, leads to cryogenic liquid inside to volatilize fast, and then has potential dangers such as leakage, superpressure, explosion, if discover to handle in time, can cause the storage cryogenic liquid a large amount of volatilize extravagantly, can develop serious accident even.
Generally, the testing of the evaporation rate of a storage container for cryogenic liquid requires a high precision sampling and analysis in order to obtain the evaporation of the cryogenic liquid inside the container in a static state. The existing static evaporation rate testing equipment has the problem of poor integration level, does not pay attention to the requirement on explosion prevention, cannot realize the rapid detection of the evaporation condition of the internal low-temperature liquid at any time and any place, and cannot display and store the evaporation data in real time; in addition, the existing static evaporation rate equipment has the condition of low sampling precision, has larger test error, and meanwhile, internal components are directly exposed in the air, so that the explosion-proof safety is not emphasized, and great potential safety hazards exist.
It can be known that, the test of the static evaporation rate of present cryogenic liquids container will be satisfied, not only will realize that equipment highly integrates, portable transportation, quick assembly disassembly, data storage exports, improves its sampling precision and reduces the test error, still needs itself also to possess explosion-proof structure, improves the fail safe nature who uses, so need propose more reasonable technical scheme, solve not enough among the prior art.
Disclosure of Invention
In order to solve the defects of the prior art mentioned in the above, the invention provides a device for testing the static evaporation rate of a low-temperature liquid container, which is communicated with a small sampling pipe of the low-temperature container, so that the evaporation gas of the low-temperature liquid enters the testing device and is accurately measured, and the device is provided with an explosion-proof structure, so that the evaporation gas can be safely discharged after the test is carried out, the safety and reliability of evaporation rate detection are improved, and the reliability of the evaporation rate detection is ensured.
In order to achieve the purpose, the invention specifically adopts the technical scheme that:
a device for testing the static evaporation rate of a low-temperature liquid container comprises a main case, wherein a gas testing pipeline is arranged in the main case; the gas testing pipeline comprises a gas inlet pipe section which is used for connecting a low-temperature liquid container to obtain the evaporated gas, an air temperature heating section and an electric heating section which are used for heating are sequentially connected behind the gas inlet pipe section, and the gas testing pipeline is also connected with a temperature transmitter which is used for detecting the temperature, an air mass flow meter which is used for metering and an exhaust pipe section; an explosion-proof case is also arranged in the main case, a processor assembly is arranged in the explosion-proof case, and the processor assembly is connected with the temperature transmitter and the air mass flow meter; a temperature and humidity detection device and an air pressure detection device are also arranged in the mainframe box and are connected with the processor assembly; the main case is also provided with a display interaction device and a data output device.
The testing device disclosed by the above is communicated with the sampling small pipe of the low-temperature liquid container through the gas testing pipeline, and gas evaporated from the low-temperature liquid in the container enters the gas testing pipeline and flows along with the gas testing pipeline to be measured. The air test pipeline is heated through the air temperature heating section and the electric heating section, so that the flowing of the internal gas can be accelerated, the form of the gas can be maintained, and the air mass flow meter is helped to perform accurate measurement. The inside humiture detection device of host computer and atmospheric pressure detection device can measure the environment in the mainframe box in real time, conveniently detect the environment in the mainframe box, ensure that the inside environment of mainframe box is the safe state.
Further, in the present invention, the structure of the gas inlet pipe for connecting the container and guiding the steam to flow into the gas detection pipeline is not limited, and may be configured as various feasible solutions, where in order to control the connection on/off, the optimal arrangement is performed and one of the feasible options is taken out: the air inlet pipe section comprises a straight pipe, the front end of the straight pipe is an air inlet and is provided with a clamping sleeve type connecting air valve, and the tail end of the straight connecting pipe is communicated with the air temperature heating section.
Further, in the invention, the air temperature heating section is used for heating the air test pipeline to raise the temperature of the air therein, so as to accelerate the flow and keep the gas state; meanwhile, the electric heating section is used as a main heating part, and the air temperature heating section is used as an auxiliary heating part, so that the pressure of the electric heating section can be reduced, and the heating efficiency and reliability can be ensured; the mode of combining the air-temperature heater and the electric heater reduces the power consumption of the electric heater; if the electric heating fails, the air-temperature heater can also heat the low-temperature evaporation gas, so that the rear-section mass flowmeter is protected to a certain extent; the air temperature heating section can adopt various feasible schemes, and is optimized and one feasible option is shown: the air temperature heating section comprises a gas pipeline, and an air temperature heater is arranged on the outer side of the gas pipeline.
Further, in the present invention, the structure of the electric heating section is optimized and one of the following possible options is presented: the electric heating section comprises a pipeline, and an electric heater is arranged on the gas pipeline. When the scheme is adopted, the electric heater is connected with the processor assembly, and the processor assembly controls the heating temperature and the working start and stop of the electric heater.
Further, to facilitate the connection, the exhaust pipeline is arranged, and the arrangement is optimized and one of the feasible options is shown here: the exhaust pipe section is provided with a movable joint, a detachable exhaust pipe is arranged on the movable joint, and the exhaust pipe extends upwards and extends out of the main case. When adopting such scheme, connect the blast pipe through the union and can realize installation and dismantlement fast.
Furthermore, the explosion-proof case in the mainframe box is used for ensuring safety, avoiding possible accidents such as explosion and the like after the internal electrical components are electrified, and realizing safety guarantee; the explosion proof enclosure can be constructed in a variety of possible configurations, optimized here and one of the possible options: the explosion-proof machine case on be provided with a plurality of explosion-proof connectors, be provided with the slide rail that is used for connecting fixed inside treater subassembly in the explosion-proof machine case, still be provided with the explosion-proof clamping head that is used for pressing from both sides tight cable in the explosion-proof machine case.
Furthermore, the inside processor assembly of explosion-proof machine case includes PLC, binding post, relay, safety barrier, switching power supply and air switch. In addition, other electric components can be arranged inside the explosion-proof case to realize explosion-proof safety.
Further, the main cabinet is a load-bearing structure, the composition of which is not limited solely, and which can be constructed in a variety of possible configurations, optimized here and to name one particularly possible option: the main case comprises a case frame, a covering case board is arranged on the case frame, and the covering case board comprises an openable door panel; the display interaction device is arranged on the covering box board and connected with the processor assembly. When the scheme is adopted, the case frame can be square, the main case is a square case, and an inclined surface can be arranged at the position where the display interaction device is arranged.
Still further, in the present invention, the display interaction device includes an explosion-proof display and a memory. The memory is used for storing numerical values obtained by the temperature transmitter, the pressure transmitter, the temperature and humidity detection device, the air pressure detection device and the like.
Further, in order to facilitate movement, the invention is optimized and one feasible choice is shown as follows: and traveling wheels are arranged below the case frame. When the scheme is adopted, the walking wheels can be provided with universal wheels or directional wheels, and the universal wheels or the directional wheels can also be combined with the walking wheels.
Compared with the prior art, the invention has the beneficial effects that:
the evaporation rate testing device provided by the invention realizes high integration, portable transportation, quick assembly and disassembly of equipment and data storage and output; the device is correspondingly matched with the low-temperature liquid container, obtains low-temperature evaporation gas in the device, and conveys and detects the low-temperature evaporation gas through a gas detection pipeline, so that the detection precision can be kept under the condition of keeping the vapor in a gaseous state; the reliable stability of heating can be ensured by combining air temperature heating and electric heating; the explosion-proof case can effectively isolate the internal environment of the electrical components and the mainframe box, and potential safety hazards such as explosion are avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic overall structure and a schematic partial structure enlargement of a testing apparatus.
Fig. 2 is an exploded view of the testing apparatus.
Fig. 3 is a schematic view of a gas testing pipeline structure inside the testing device.
Fig. 4 is a schematic structural diagram of an explosion-proof enclosure.
In the above drawings, the meaning of each symbol is: 1. a main chassis; 101. a chassis frame; 102. covering the boxboard; 2. a display interaction device; 3. a traveling wheel; 4. the signal terminal is quickly connected with the interface; 5. opening a hole; 6. the cutting sleeve type is connected with the air valve; 7. a temperature and humidity detection device; 8. an explosion-proof case; 801. an explosion-proof clamp fitting; 9. a pipe clamp; 10. a support; 11. an air pressure detecting device; 12. a gas test line; 13. a straight pipe; 14. an air temperature heating section; 15. an electrical heating section; 16. a temperature transmitter; 17. a mass flow meter; 18. a movable joint; 19. an exhaust section.
Detailed Description
The invention is further explained below with reference to the drawings and the specific embodiments.
It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
Examples
To the low temperature liquid static evaporation rate integrated level that exists not high among the prior art, transport, loading and unloading are inconvenient, detect the accuracy not high, and check out test set itself has the condition that detects the potential safety hazard, and the problem among the prior art is optimized and solved to this embodiment.
Specifically, as shown in fig. 1 and fig. 2, the present embodiment provides a device for testing static evaporation rate of a cryogenic liquid container, which includes a main cabinet 1, wherein a gas testing pipeline 12 is disposed in the main cabinet 1; the gas test pipeline 12 comprises a gas inlet pipe section for connecting a low-temperature liquid container to obtain the evaporated gas, and the rear part of the gas inlet pipe section is sequentially connected with an air temperature heating section 14 and an electric heating section 15 for heating, and is also connected with a temperature transmitter 16 for detecting temperature, an air mass flow meter 17 for metering and an exhaust pipe section 19; an explosion-proof case 8 is also arranged in the main case 1, a processor assembly is arranged in the explosion-proof case 8, and the processor assembly is connected with a temperature transmitter 16 and an air mass flow meter 17; a temperature and humidity detection device 7 and an air pressure detection device 11 are also arranged in the main case 1 and are connected with the processor assembly; the main case 1 is also provided with a display interaction device 2 and a data output device.
The testing device disclosed above is communicated with the sampling small pipe of the cryogenic liquid container through the gas testing pipeline 12, and the gas evaporated from the cryogenic liquid in the container enters the gas testing pipeline 12 and flows along with the gas testing pipeline 12 to be measured. The air temperature heating section 14 and the electric heating section 15 are used for heating the gas testing pipeline 12, so that the flow of the gas inside can be accelerated, the form of the gas can be maintained, and the air mass flow meter 17 can be accurately measured. The inward temperature and humidity detection device 7 and the air pressure detection device 11 of host computer can measure the environment in the mainframe box 1 in real time, conveniently detect the environment in the mainframe box 1, ensure that the environment inside the mainframe box 1 is safe state.
In the present embodiment, the air inlet pipe is used for connecting the container and guiding the steam to flow into the gas detection pipeline, and the structure is not limited only, and can be constructed into various feasible schemes, and here, in order to control the connection on-off, the air inlet pipe is optimally arranged and adopts one feasible option: as shown in fig. 3, the air inlet pipe section includes a straight pipe 13, the front end of the straight pipe 13 is an air inlet and is provided with a cutting sleeve type connecting air valve 6, and the tail end of the straight connecting pipe is communicated with the air temperature heating section.
Preferably, a ferrule type ball valve is adopted in the embodiment.
In the present embodiment, the air temperature heating section 14 is used for heating the air test pipeline to raise the temperature of the air therein, so as to accelerate the flow and maintain the gaseous state; meanwhile, the electric heating section 15 is used as a main heating part, and the air temperature heating section is used as an auxiliary heating part, so that the pressure of the electric heating section 15 can be reduced, and the heating efficiency and reliability can be ensured; the air-temperature heating section 14 can adopt a plurality of feasible schemes, and is optimized and adopts one feasible option: the air temperature heating section 14 comprises a gas pipeline, and an air temperature heater is arranged outside the gas pipeline.
Preferably, in the present embodiment, the structure of the electrical heating section 15 is optimized and one of the following possible options is adopted: the electric heating section 15 comprises a pipeline, and an electric heater is arranged on the gas pipeline. When the scheme is adopted, the electric heater is connected with the processor assembly, and the processor assembly controls the heating temperature and the working start and stop of the electric heater.
To facilitate the connection of the exhaust line, an optimization is made here and one of the possible options is used: the exhaust pipe section 19 is provided with a movable joint 18, and a detachable exhaust pipe is arranged on the movable joint 18 and extends upwards and extends out of the main case 1. When the scheme is adopted, the exhaust pipe is connected through the movable joint 18, so that the installation and the disassembly can be quickly realized.
Preferably, the explosion-proof case 8 in the main case 1 is used for ensuring safety, so that possible accidents such as explosion and the like after internal electrical components are electrified are avoided, and safety guarantee can be realized; the explosion proof enclosure 8 may be constructed in a number of possible configurations, where optimization is made and one of the possible options is adopted: as shown in fig. 4, the explosion-proof enclosure 8 is provided with a plurality of explosion-proof connectors, a slide rail for connecting and fixing the internal processor assembly is arranged in the explosion-proof enclosure 8, and an explosion-proof clamping joint 801 for clamping a cable is further arranged in the explosion-proof enclosure 8.
Preferably, the inner processor assembly is connected by a sliding rail, so that the position of the processor assembly can be conveniently adjusted, and the sliding rail can be made of plastics.
In this embodiment, the internal processor component of the explosion-proof case 8 includes a PLC, a wiring terminal, a relay, a safety isolation barrier, a switching power supply, and an air switch. In addition, other electric components can be arranged inside the explosion-proof case 8 to realize explosion-proof safety.
In the present embodiment, the main cabinet 1 is used as a load-bearing structure, the composition of which is not limited only, and can be constructed into various feasible structures, and the optimization is performed and one of the following feasible options is adopted: the main case 1 comprises a case frame 101, a covering case board 102 is arranged on the case frame 101, and the covering case board 102 comprises an openable door panel; the display interaction device 2 is disposed on the cover board 102 and connected to the processor assembly. With such a scheme, the case frame 101 may be square, the main case 1 may be a square case, and an inclined surface may be disposed at the position where the display interaction device 2 is disposed.
Preferably, in this embodiment, the chassis frame 101 is provided with a pipe clamp 9 for supporting the gas test pipeline 12, and a bracket 10 for supporting the explosion-proof chassis 8.
Preferably, in the embodiment, an opening 5 is formed in the covering box plate 102 for arranging the inlet end of the gas testing pipeline 12, and the ferrule type connecting gas valve 6 is arranged at the opening 5; and the covering box board 102 is further provided with a plurality of signal terminal quick connection interfaces 4 for connecting external devices to transmit data.
In the present embodiment, the display interaction device 2 includes an explosion-proof display and a memory. The memory is used for storing the values obtained by the temperature transmitter 16, the pressure transmitter, the temperature and humidity detection device 7, the air pressure detection device 11 and the like.
Preferably, in this embodiment, the data transmission device includes a data transmission interface, and the data transmission interface is communicated with the internal explosion-proof enclosure and can be connected to an external data device for data transmission.
To facilitate movement, the present embodiment is optimized and uses one of the following possible options: and the traveling wheels 3 are arranged below the case frame 101. When adopting such scheme, walking wheel 3 can set up universal wheel or directive wheel, also can the two combination setting.
The above embodiments are just exemplified in the present embodiment, but the present embodiment is not limited to the above alternative embodiments, and those skilled in the art can obtain other various embodiments by arbitrarily combining with each other according to the above embodiments, and any other various embodiments can be obtained by anyone in light of the present embodiment. The above detailed description should not be construed as limiting the scope of the present embodiments, which should be defined in the claims, and the description should be used for interpreting the claims.
Claims (10)
1. The utility model provides a static evaporation rate testing arrangement of cryogenic liquids container which characterized in that: comprises a main case (1), wherein a gas test pipeline (12) is arranged in the main case (1); the gas testing pipeline (12) comprises a gas inlet pipe section for connecting a low-temperature liquid container to obtain the evaporated gas, an air temperature heating section (14) and an electric heating section (15) for heating are sequentially connected behind the gas inlet pipe section, and the gas testing pipeline is also connected with a temperature transmitter (16) for detecting the temperature, an air mass flow meter (17) for metering and an exhaust pipe section (19); an explosion-proof case (8) is also arranged in the main case (1), a processor assembly is arranged in the explosion-proof case (8), and the processor assembly is connected with a temperature transmitter (16) and an air mass flowmeter (17); a temperature and humidity detection device (7) and an air pressure detection device (11) are also arranged in the main case (1) and are connected with the processor assembly; the main case (1) is also provided with a display interaction device (2).
2. The apparatus for testing the static evaporation rate of a cryogenic liquid vessel of claim 1, wherein: the air inlet pipe section comprises a straight pipe (13), the front end of the straight pipe (13) is an air inlet and is provided with a clamping sleeve type connecting air valve (6), and the tail end of the straight-through connecting pipe is communicated with the air temperature heating section.
3. The apparatus for testing the static evaporation rate of a cryogenic liquid vessel of claim 1, wherein: the air temperature heating section (14) comprises a gas pipeline, and an air temperature heater is arranged on the outer side of the gas pipeline.
4. The apparatus for testing the static evaporation rate of a cryogenic liquid vessel of claim 1, wherein: the electric heating section (15) comprises a pipeline, and an electric heater is arranged on the gas pipeline.
5. The apparatus for testing the static evaporation rate of a cryogenic liquid vessel of claim 1, wherein: the exhaust pipe section (19) is provided with a movable joint (18), a detachable exhaust pipe is arranged on the movable joint (18), and the exhaust pipe extends upwards and extends out of the main case (1).
6. The apparatus for testing the static evaporation rate of a cryogenic liquid vessel of claim 1, wherein: the anti-explosion cable is characterized in that a plurality of anti-explosion connectors are arranged on the anti-explosion case (8), a sliding rail used for connecting and fixing the internal processor assembly is arranged in the anti-explosion case (8), and an anti-explosion clamping connector (801) used for clamping a cable is further arranged in the anti-explosion case (8).
7. The device for testing the static evaporation rate of a cryogenic liquid container according to claim 1 or 6, wherein: the internal processor assembly of the explosion-proof case (8) comprises a PLC, a wiring terminal, a relay, a safety isolation gate, a switching power supply and an air switch.
8. The apparatus for testing the static evaporation rate of a cryogenic liquid vessel of claim 1, wherein: the main case (1) comprises a case frame (101), a covering case board (102) is arranged on the case frame (101), and the covering case board (102) comprises an openable door panel; the display interaction device (2) is arranged on the covering box board (102) and is connected with the processor assembly.
9. The apparatus for testing the static evaporation rate of a cryogenic liquid vessel according to claim 1 or 8, wherein: the display interaction device (2) comprises an explosion-proof display and a memory.
10. The apparatus for testing the static evaporation rate of a cryogenic liquid vessel of claim 8, wherein: and traveling wheels (3) are arranged below the case frame (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111353758.XA CN114264572A (en) | 2021-11-16 | 2021-11-16 | Static evaporation rate testing device for low-temperature liquid container |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111353758.XA CN114264572A (en) | 2021-11-16 | 2021-11-16 | Static evaporation rate testing device for low-temperature liquid container |
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