CN220102862U - Helium online recovery device - Google Patents
Helium online recovery device Download PDFInfo
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- CN220102862U CN220102862U CN202321152856.1U CN202321152856U CN220102862U CN 220102862 U CN220102862 U CN 220102862U CN 202321152856 U CN202321152856 U CN 202321152856U CN 220102862 U CN220102862 U CN 220102862U
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- 238000011084 recovery Methods 0.000 title claims abstract description 165
- 239000001307 helium Substances 0.000 title claims abstract description 140
- 229910052734 helium Inorganic materials 0.000 title claims abstract description 140
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 title claims abstract description 140
- 239000007789 gas Substances 0.000 claims abstract description 80
- 230000008859 change Effects 0.000 claims abstract description 42
- 230000005540 biological transmission Effects 0.000 claims description 30
- 238000005481 NMR spectroscopy Methods 0.000 claims description 14
- 239000010935 stainless steel Substances 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 238000005057 refrigeration Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a helium online recovery device, wherein a height travel controller or a photoelectric sensor in the helium online recovery device intelligently controls the start and stop of a compressor and the start and stop of an emptying electromagnetic valve by monitoring the height change or the volume change of a recovery air bag; the compressor pressure sensor monitors the change of the helium pressure in the recovery balloon, and when the helium pressure in the recovery balloon is lower than the lower limit of the set pressure of the recovery balloon, the compressor automatically stops compressing; the busbar pressure sensor monitors the change of the helium pressure in the high-pressure gas cylinder, and when the helium pressure in the high-pressure gas cylinder is higher than the set pressure upper limit of the high-pressure gas cylinder, the compressor automatically stops compressing; helium evaporated by small liquid helium consuming equipment can be recovered on line in real time, and the recovery rate can reach 70%; the recovery air bag is convenient to match with the supporting frame, and the directional inflation and expansion of the recovery air bag can be realized; the compressor can compress intermittently, so that the energy consumption of the device is saved; the device is miniaturized as a whole, has a simple structure and is convenient to install.
Description
Technical Field
The utility model relates to a helium online recovery device, in particular to a helium online recovery device for a nuclear magnetic resonance spectrometer, which is suitable for small helium equipment.
Background
Helium is a refrigeration medium necessary in low-temperature engineering projects such as superconducting, low-temperature medicine, material low-temperature physical property characterization and the like at present because of low boiling point and strong refrigeration capacity of helium and belongs to inert substances. With the rapid development of related low temperature technology and industry, domestic helium demand is increasing year by year. However, since the helium resources in our country are very scarce, more than 95% of the helium usage per year needs to be imported from abroad, and the price cost is high and the supply risk exists. Therefore, for some instruments and equipment for realizing superconductivity by liquid helium refrigeration, saving, high efficiency and recycling helium are an effective way for relieving the contradiction between supply and demand.
At present, some equipment with large superconducting magnets, such as mass spectrometers, CT images and the like, are provided with expensive helium recovery and liquefaction circulation devices, so that the consumption of liquid helium is reduced as much as possible. For some equipment with low liquid helium consumption, such as a nuclear magnetic resonance spectrometer, most of helium evaporated by the superconducting magnet in the cooling process is not recycled and is directly discharged into the atmosphere, so that unnecessary waste is caused.
It has been found that the annual evacuation of more than one hundred cubic meters of helium during operation of a single nuclear magnetic resonance spectrometer is also quite surprising if multiple devices are operated simultaneously and directly evacuating helium. At present, no recovery device for establishing the helium evaporated by the small helium equipment such as a nuclear magnetic resonance spectrometer is reported at home and abroad. Therefore, development of helium on-line recovery devices suitable for small helium equipment such as nuclear magnetic resonance spectrometers and the like is urgent, and cost of helium is reduced, and helium resources are saved.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides the helium online recovery device which has the characteristics of automation, miniaturization, low cost, high recovery rate and real-time online recovery.
The technical scheme of the utility model is as follows:
the helium online recovery device comprises a recovery airbag, a compressor, a high-pressure gas cylinder group, a recovery airbag measurement system and an automatic control system;
the gas inlet of the recovery gas bag is connected with a helium gas outlet of helium equipment, the gas outlet of the recovery gas bag is connected with a gas inlet of a compressor, and the gas outlet of the compressor is connected with a high-pressure gas cylinder group; the recovery air bag is connected with a helium gas outlet of the helium device and is used for receiving helium gas discharged by the helium device; the compressor is used for compressing helium; the high-pressure gas cylinder group is used for storing high-pressure helium; the recovery air bag measuring system is used for measuring the height, the height change, the volume or the volume change of the recovery air bag;
the automatic control system is electrically connected with the recovery air bag, the compressor, the high-pressure gas cylinder group and the recovery air bag measuring system through transmission lines respectively and is used for controlling the start and stop of the compressor and the start and stop of the valve in the helium online recovery device.
According to embodiments of the utility model, the helium-using apparatus is, for example, a nuclear magnetic resonance spectrometer, a mass spectrometer, and other small helium-using apparatuses.
According to an embodiment of the utility model, the recovery airbag measurement system comprises a height travel controller and/or a photoelectric sensor.
According to an embodiment of the utility model, the gas inlet of the recovery balloon is connected to the helium gas outlet of the helium-using device by means of a metal hose.
According to the embodiment of the utility model, the exhaust port of the recovery air bag is connected with the air inlet of the compressor through a stainless steel high-pressure pipe.
According to the embodiment of the utility model, the exhaust port of the compressor is connected with the high-pressure gas cylinder group through a stainless steel high-pressure pipe.
According to an embodiment of the present utility model, the helium gas on-line recovery apparatus further includes a support frame, and the recovery airbag is installed in the support frame.
According to an embodiment of the present utility model, the recovery airbag is a square or cylindrical airbag.
According to an embodiment of the utility model, the support frame is a square or cylindrical support frame.
According to the embodiment of the utility model, the supporting frame is made of aluminum alloy or stainless steel.
According to an embodiment of the utility model, the support frame comprises a frame arranged in parallel perpendicular to the ground direction and a frame arranged in parallel to the ground direction.
According to an embodiment of the utility model, the guide rail is provided on a frame arranged perpendicularly to the ground.
According to an embodiment of the present utility model, a counterweight for fixing the recovery airbag is provided at an upper portion of the recovery airbag.
According to an embodiment of the present utility model, the counterweight and the height stroke controller are connected by a height measurement line for measuring the height or the change in height of the recovery airbag.
According to the embodiment of the utility model, the counterweight can freely slide along the guide rail in the supporting frame and the mass can be automatically adjusted along with the volume change of the recovery air bag; i.e. the position of the counterweight is changed simultaneously with the height of the recovery air bag. The length of the height measuring line can stretch and retract along with the movement of the counterweight at the upper part of the recovery air bag.
According to an embodiment of the utility model, the height stroke controller is arranged at the top end of the support frame.
According to an embodiment of the utility model, the photo sensor is arranged at a side of the support frame.
According to an embodiment of the present utility model, the photo-sensor includes a first photo-sensor, a second photo-sensor, and a third photo-sensor.
According to an embodiment of the present utility model, the first photoelectric sensor is fixed to a side lower portion of the support frame for measuring a lower limit of an inflated volume of the recovery airbag.
According to an embodiment of the present utility model, the second photoelectric sensor may be moved simultaneously along a guide rail on the support frame and with the counterweight for measuring the volume of the recovery airbag in real time.
According to an embodiment of the present utility model, the third photoelectric sensor is fixed to an upper side portion of the support frame for measuring an upper limit of the inflation volume of the recovery airbag.
According to an embodiment of the present utility model, the height stroke controller is used to measure the height or the change in height of the recovery airbag; the photoelectric sensor is used for measuring the volume or the volume change of the recovery air bag.
According to the embodiment of the utility model, the height travel controller is electrically connected with the automatic control system through a transmission line, and feeds back the height or height change electric signal of the recovery air bag to the automatic control system, and the automatic control system can automatically control the start and stop of the compressor and the start and stop of the emptying electromagnetic valve according to the height or height change electric signal of the recovery air bag fed back by the height travel controller through the transmission line.
According to the embodiment of the utility model, the photoelectric sensor is electrically connected with the automatic control system through the transmission line, the volume or volume change electric signal of the recovery air bag is fed back to the automatic control system, and the automatic control system can automatically control the start and stop of the compressor and the start and stop of the emptying electromagnetic valve according to the volume or volume change electric signal of the recovery air bag fed back by the photoelectric sensor through the transmission line.
According to the embodiment of the utility model, the height travel controller and the photoelectric sensor are backup components for recovering the volume or height change of the air bag.
According to the embodiment of the utility model, when the height travel controller and the photoelectric sensor are used simultaneously, the automatic control system preferentially receives the air bag height or height change electric signal fed back by the height travel controller; when the electric signal transmitted by the height travel controller is abnormal, the automatic control system can automatically receive the electric signal of the volume or volume change of the air bag fed back by the photoelectric sensor.
According to the embodiment of the utility model, the vent solenoid valve and the mechanical safety valve are arranged at the position close to the vent of the recovery air bag, the vent solenoid valve is electrically connected with the automatic control system through a transmission line, and the opening and closing of the vent solenoid valve are controlled through the automatic control system.
According to the embodiment of the utility model, the emptying electromagnetic valve and the mechanical safety valve are mutually helium emptying backup components.
According to an embodiment of the utility model, the vent solenoid valve and the mechanical safety valve are used to vent helium from the recovery bladder. Illustratively, the helium in the recovery balloon is automatically or manually vented to its upper safety height limit.
According to an embodiment of the present utility model, the compressor has oil-gas separation and water filtration functions.
According to the embodiment of the utility model, the compressor is connected with an automatic control system through a transmission line, and the starting and stopping of the compressor are controlled through the automatic control system.
According to the embodiment of the utility model, the compressor pressure sensor is arranged near the air inlet of the compressor and is electrically connected with the automatic control system through the transmission line, the electric signal of the helium pressure in the recovery air bag is fed back to the automatic control system, and the automatic control system can automatically control the stop of the compressor according to the electric signal of the helium pressure in the recovery air bag fed back by the compressor pressure sensor through the transmission line. Specifically, when the pressure of helium gas in the recovery balloon is less than the lower limit of the pressure set point, the compressor is shut down.
According to an embodiment of the utility model, a high pressure valve is arranged close to the air outlet of the compressor.
According to an embodiment of the present utility model, the high pressure gas cylinder group includes a plurality of high pressure gas cylinders, helium gas buses, bus pressure sensors, bus pressure gauges, and bus safety valves; the high-pressure gas cylinders are communicated with the helium busbar, and the busbar pressure sensor, the busbar pressure gauge and the busbar safety valve are arranged on the helium busbar.
According to the embodiment of the utility model, the helium busbar is a stainless steel pipe with one end closed and the side surface of the helium busbar can be connected with a plurality of high-pressure gas cylinders. The helium busbar is used for simultaneously introducing compressed helium into a plurality of high-pressure gas cylinders.
According to the embodiment of the utility model, the busbar pressure sensor is connected with the automatic control system through a transmission line, an electric signal of the helium pressure in the high-pressure gas cylinder is fed back to the automatic control system, and the automatic control system can automatically control the stop of the compressor according to the electric signal of the helium pressure in the high-pressure gas cylinder fed back by the busbar pressure sensor through the transmission line. Specifically, when the pressure of helium in the high-pressure gas cylinder is higher than the set upper pressure limit of the high-pressure gas cylinder, the compressor is stopped.
According to an embodiment of the utility model, the plurality of high pressure gas cylinders are configured to hold recovered high pressure helium gas. The busbar pressure sensor or the busbar pressure gauge is used for measuring the pressure of the high-pressure gas cylinder group; the busbar safety valve is used for safely emptying helium in the high-pressure gas cylinder group which exceeds the set pressure.
According to an embodiment of the utility model, a low pressure valve is provided near the air inlet of the recovery air bag; ensures that helium generated by evaporation of helium equipment can be led into the recovery gasbag.
According to an embodiment of the present utility model, a vent valve and a safety valve are provided on a metal hose connecting an air inlet of the recovery balloon and a helium gas outlet of the helium-using device.
The beneficial effects are that:
1. the recovery air bag measuring system (particularly a height travel controller and/or a photoelectric sensor) intelligently controls the start and stop of the compressor and the start and stop of the emptying electromagnetic valve by monitoring the height or the height change, the volume or the volume change of the recovery air bag;
2. the compressor pressure sensor monitors the change of the helium pressure in the recovery balloon, and when the helium pressure in the recovery balloon is lower than the lower limit of the set pressure of the recovery balloon, the compressor automatically stops compressing; the busbar pressure sensor monitors the change of the helium pressure in the high-pressure gas cylinder, and when the helium pressure in the high-pressure gas cylinder is higher than the set pressure upper limit of the high-pressure gas cylinder, the compressor automatically stops compressing;
3. helium evaporated by small liquid helium consuming equipment can be recovered on line in real time, and the recovery rate can reach 70%;
4. the recovery air bag is convenient to match with the supporting frame, and the directional inflation and expansion of the recovery air bag can be realized; the compressor can compress intermittently, so that the energy consumption of the device is saved;
5. the device is miniaturized as a whole, has a simple structure and is convenient to install.
Drawings
FIG. 1 is a schematic flow diagram of an on-line helium recovery unit according to the present utility model.
Reference numerals: 1. recovering the air bag; 10. a metal hose; 11. a support frame; 12. an air inlet of the recovery air bag; 13. an air outlet of the recovery air bag; 14. a height travel controller; 15. a photoelectric sensor; 16. a counterweight; 17. venting the electromagnetic valve; 18. a mechanical safety valve; 19. stainless steel high pressure pipe; 2. a compressor; 20. a compressor pressure sensor; 21. a high pressure valve; 3. a high pressure gas cylinder group; 30. a helium busbar; 31. a busbar pressure sensor; 32. a busbar pressure gauge; 33. a bus bar safety valve; 4. an automatic control system; 41. a transmission line; 5. nuclear magnetic resonance spectrometer; 50. a one-way valve; 51. a blow-off valve; 52. a safety valve; 53. a low pressure valve.
Detailed Description
The present utility model will be described in further detail with reference to specific examples. It is to be understood that the following examples are illustrative only and are not to be construed as limiting the scope of the utility model. All techniques implemented based on the above description of the utility model are intended to be included within the scope of the utility model.
FIG. 1 is a schematic flow diagram of an on-line helium recovery unit according to the present utility model.
Specifically, the embodiment provides an online helium recovery device, in particular to an online helium recovery device for a nuclear magnetic resonance spectrometer, which comprises a recovery balloon 1 for recovering helium, a compressor 2 for compressing the recovered helium in the balloon, a high-pressure gas cylinder group 3 for storing the helium compressed by the compressor, a recovery balloon measurement system for measuring the height or the height change, the volume or the volume change of the recovery balloon, an automatic control system 4 and a support frame 11 for placing the recovery balloon 1; the recovery airbag measurement system includes a height travel controller and a photoelectric sensor.
As shown in fig. 1, the square or cylindrical recovery airbag 1 is placed in a supporting frame 11 which is square or cylindrical, the lower end of the recovery airbag 1 is fixed at the bottom of the supporting frame 11, the supporting frame 11 comprises a frame which is arranged in parallel and is perpendicular to the ground direction, and a frame which is arranged in parallel and is parallel to the ground direction, wherein a guide rail is arranged on the frame which is arranged in perpendicular to the ground direction, the top end of the supporting frame 11 is provided with a height travel controller 14 for measuring the height or the change of the height of the recovery airbag 1, and the height travel controller 14 is connected with the automatic control system 4 through a transmission line 41. Three photoelectric sensors 15 for measuring the volume or the change in volume of the recovery airbag 1 are provided on the side of the support frame 11, and the photoelectric sensors 15 are connected to the automatic control system 4 through a transmission line 41. The upper part of the recovery airbag 1 is provided with a counterweight 16, the counterweight 16 can move up and down along a guide rail on the support frame 11 along with the change of the height of the recovery airbag 1, the counterweight 16 is connected with the height travel controller 14 through a height measuring line, and the height measuring line can move along with the counterweight 16 at the upper part of the recovery airbag 1 at the same time. The lower part of the recovery air bag 1 is symmetrically provided with an air inlet 12 of the recovery air bag and an air outlet 13 of the recovery air bag respectively, the air inlet 12 of the recovery air bag is connected with the air outlet end of the nuclear magnetic resonance spectrometer 5 through a metal hose 10 with a low-pressure valve 53, and the air outlet 13 of the recovery air bag is connected with the air inlet end of the compressor through a stainless steel high-pressure pipe 19. A vent solenoid valve 17 and a mechanical safety valve 18 for venting the recovery airbag 1 are provided near the vent port 13 of the recovery airbag.
The weight device 16 is used for fixing the recovery airbag 1, the mass of the weight device can be synchronously matched and changed along with the volume change of the recovery airbag 1, and the position of the weight device can be synchronously changed along with the position change of the upper end of the recovery airbag 1.
The height journey device 14 for measuring the height or the height change of the recovery air bag 1 or the photoelectric sensor 15 for measuring the volume or the volume change of the recovery air bag 1 can automatically control the start and stop of the compressor 2 according to the upper limit or the lower limit of the height set by the recovery air bag 1; the height journey ware 14 and photoelectric sensor 15 each other are the backup subassembly of retrieving the automatic measurement of height or volume of gasbag 1.
The emptying electromagnetic valve 17 and the mechanical safety valve 18 can automatically or manually empty helium in the recovery airbag 1 to the upper safety height limit according to the height limit set by the recovery airbag 1; the emptying solenoid valve 17 and the mechanical safety valve 18 are mutually emptying backup components of the recovery air bag 1.
A compressor pressure sensor 20 is arranged on the stainless steel pipeline close to the air inlet of the compressor; the exhaust port of the compressor is connected with a helium busbar 30 on the high-pressure gas cylinder group 3 through a stainless steel high-pressure pipe 19 provided with a high-pressure valve 21; the compressor 2 has the functions of oil-gas separation and water filtration; the power control of the compressor 2 and the compressor pressure sensor 20 are respectively connected with the automatic control system 4 through a transmission line 41, and if the pressure of the helium gas in the recovery balloon 1 is lower than the set pressure lower limit, the compressor 2 automatically stops compressing the helium gas.
The high-pressure gas cylinder group 3 includes a plurality of high-pressure gas cylinders, a busbar pressure sensor 31, a busbar pressure gauge 32, and a busbar relief valve 33. The helium busbar 30 is a high pressure resistant stainless steel tube; a busbar pressure sensor 31 or a busbar pressure gauge 32 arranged on the helium busbar 30 is used for measuring the pressure of the high-pressure gas cylinder group 3; the busbar safety valve 33 arranged on the helium busbar 30 is used for safely emptying the helium in the high-pressure gas cylinder group 3 exceeding the set pressure.
The automatic control system 4 is respectively connected with the height stroke controller 14, the photoelectric sensor 15 and the emptying electromagnetic valve 17 on the recovery air bag 1 through transmission lines 41, and the compressor pressure sensor 20 of the compressor 2, the compressor 2 and the busbar pressure sensor 31. The automatic control system 4 automatically controls the start and stop of the compressor 2 through the height or height change electric signal of the recovery air bag 1 fed back by the height travel controller 14 through the transmission line 41 (or the volume or volume change electric signal of the recovery air bag 1 fed back by the photoelectric sensor 15 through the transmission line 41).
The height of the recovery air bag 1 is higher than the set upper limit of the height, and the automatic control system 4 automatically starts the compressor 2 to compress helium; the automatic control system 4 automatically controls the stop of the compressor 2 according to the helium pressure electric signal in the high-pressure gas cylinder fed back by the busbar pressure sensor 31 on the helium busbar 30; the height of the recovery balloon 1 is lower than the lower limit of the set height, and the automatic control system 4 automatically stops the compressor 2 from compressing helium; the height of the recovery airbag 1 exceeds the height setting limit, the automatic control system 4 automatically opens the emptying electromagnetic valve 17 to empty helium gas, and automatically closes the emptying electromagnetic valve 17 after the height of the recovery airbag 1 returns to the height setting upper limit.
The helium on-line recovery process of the nuclear magnetic resonance spectrometer is described in detail below:
helium evaporated in the nuclear magnetic resonance spectrometer 5 is discharged into the metal hose 10 in real time through the check valve 50 provided with the metal hose 10, the metal hose 10 is connected with the recovery balloon air inlet 12 of the recovery balloon 1 through the low-pressure valve 53, and the helium enters the recovery balloon 1 through the metal hose 10. A blow-off valve 51 and a relief valve 52 are also provided on the metal hose 10 connecting the check valve 50 and the low pressure valve 53.
As the amount of recovered helium increases, the volume of the recovered airbag 1 increases, and the weight 16 at the upper end thereof automatically adjusts the self-mass to match with the volume change of the recovered airbag 1 through the guide rail on the supporting frame 11 and fixes the bottom of the recovered airbag 1 without separating from the supporting frame 11. The height travel controller 14 arranged at the top of the supporting frame 11 or the photoelectric sensor 15 arranged on the side wall of the supporting frame 11 detects that the height or volume of the recovery air bag 1 reaches the upper limit of the height or volume set by the automatic control system 4, and the automatic control system 4 automatically starts the compressor 2 to compress helium in the recovery air bag 1; when the height travel controller 14 or the photoelectric sensor 15 detects that the height or volume of the recovery balloon 1 reaches the lower limit of the height or volume set by the automatic control system 4, the automatic control system 4 automatically turns off the compressor 2 and the helium gas compression stops. The high-pressure helium is discharged into a stainless steel high-pressure pipe 19 through an exhaust port of the compressor 2, flows through a high-pressure valve 21 and is stored in the high-pressure gas cylinder group 3 through a helium busbar 30; when the pressure of helium gas stored in the high-pressure gas cylinder group 3 exceeds a set safety limit, the bus safety valve 33 automatically exhausts to below the safety limit; the high pressure cylinder set 3 is periodically manually replaced by a prompt indicated by a bus pressure gauge 32 on the helium bus 30. The on-line helium recovery is over 70% and the recovered helium is used to continue liquefaction for reuse by nmr spectrometer 5.
The utility model adopts a safety design at a plurality of key parts, and ensures the operation safety of the device. A vent valve 51 and a safety valve 52 are arranged at the exhaust port of the one-way valve 50 of the nuclear magnetic resonance spectrometer 5; when the recovery equipment is out of service or fails, the vent valve 51 can be opened or the safety valve 52 can be automatically opened, so that the nuclear magnetic resonance spectrometer 5 can be safely used. When the recovery airbag 1 reaches the height setting limit or the recovery airbag 1 reaches the height setting limit during power failure, the electric signal controlled emptying solenoid valve 17 or the mechanical safety valve 18 automatically empties to the safety upper limit set by the height of the recovery airbag 1. When the busbar pressure sensor 31 on the helium busbar 30 reaches the safety pressure limit set by the high-pressure gas cylinder group 3, the automatic control system 4 automatically stops the operation of the compressor 2.
The helium online recovery device comprises the following specific operation steps:
(1) Installing the recovery air bag in the supporting frame according to the requirement; installing a weight device on the upper part of the recovery air bag according to the requirement; installing a height travel controller and a photoelectric sensor according to requirements;
(2) The helium on-line recovery device is correctly connected with the air inlet and outlet pipelines and the high-pressure gas cylinder group pipelines according to requirements, and the automatic control system is correctly connected with the compressor and the electric control element components through transmission lines;
(3) Installing pressure sensors and safety valves according to requirements; installing a high-pressure gas cylinder group;
(4) Checking that the low pressure valve and the high pressure valve are in a fully opened state;
(5) Starting an automatic control system, collecting helium gas on line in real time by a recovery air bag, and automatically controlling the start and stop of a compressor by the control system;
(6) And (5) timely replacing the high-pressure gas cylinder according to the indication of the pressure representation number on the helium busbar to complete helium recovery.
The embodiments of the present utility model have been described above. However, the present utility model is not limited to the above embodiment. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The helium online recovery device is characterized by comprising a recovery airbag, a compressor, a high-pressure gas cylinder group, a recovery airbag measurement system and an automatic control system;
the gas inlet of the recovery gas bag is connected with a helium gas outlet of helium equipment, the gas outlet of the recovery gas bag is connected with a gas inlet of a compressor, and the gas outlet of the compressor is connected with a high-pressure gas cylinder group; the recovery air bag is connected with a helium gas outlet of the helium device and is used for receiving helium gas discharged by the helium device; the compressor is used for compressing helium; the high-pressure gas cylinder group is used for storing high-pressure helium; the recovery air bag measuring system is used for measuring the height or the height change, the volume or the volume change of the recovery air bag;
the automatic control system is electrically connected with the recovery air bag, the compressor, the high-pressure gas cylinder group and the recovery air bag measuring system through transmission lines respectively and is used for controlling the start and stop of the compressor and the start and stop of the valve in the helium online recovery device.
2. The helium on-line recovery unit of claim 1, wherein the helium-using device is a nuclear magnetic resonance spectrometer or a mass spectrometer.
3. The helium on-line recovery unit of claim 1, further comprising a support frame, said recovery balloon being mounted within the support frame;
the support frame comprises a frame which is arranged in parallel and is perpendicular to the ground direction, and a frame which is arranged in parallel and is parallel to the ground direction; the guide rail is provided on a frame arranged perpendicular to the ground.
4. A helium on-line recovery unit according to claim 3, wherein said recovery balloon measurement system comprises a height travel controller and/or a photoelectric sensor; the height travel controller is arranged at the top end of the supporting frame; the photoelectric sensor is arranged on the side face of the supporting frame;
the height travel controller is used for measuring the height or the height change of the recovery air bag; the photoelectric sensor is used for measuring the volume or the volume change of the recovery air bag.
5. The helium on-line recovery unit of claim 4, wherein the photo-sensor comprises a first photo-sensor, a second photo-sensor, and a third photo-sensor; the first photoelectric sensor is fixed at the lower part of the side surface of the supporting frame and is used for measuring the lower limit of the inflation volume of the recovery air bag; the second photoelectric sensor can move along a guide rail on the supporting frame and simultaneously along with the counterweight device and is used for measuring the volume of the recovery air bag in real time; the third photoelectric sensor is fixed at the upper part of the side face of the supporting frame and is used for measuring the upper limit of the inflating volume of the recovery air bag.
6. The helium gas on-line recovery apparatus according to claim 4, wherein a counterweight is provided at an upper portion of the recovery airbag, the counterweight is used for fixing the recovery airbag, and the counterweight and the height stroke controller are connected through a height measuring line for measuring a height or a height change of the recovery airbag.
7. The helium on-line recovery unit according to claim 4, wherein the height travel controller is electrically connected with the automatic control system through a transmission line, and feeds back an electric signal of the height or the change of the height of the recovery air bag to the automatic control system, and the automatic control system can automatically control the start and stop of the compressor and the start and stop of the vent solenoid valve according to the electric signal of the height or the change of the height of the recovery air bag fed back by the height travel controller through the transmission line;
and/or the photoelectric sensor is electrically connected with the automatic control system through a transmission line, the volume or volume change electric signal of the recovery air bag is fed back to the automatic control system, and the automatic control system can automatically control the start and stop of the compressor and the start and stop of the emptying electromagnetic valve according to the volume or volume change electric signal of the recovery air bag fed back by the photoelectric sensor through the transmission line.
8. The helium on-line recovery unit according to claim 1, wherein a vent solenoid valve and a mechanical safety valve are arranged near the vent of the recovery air bag, the vent solenoid valve is electrically connected with an automatic control system through a transmission line, and the opening and closing of the vent solenoid valve are controlled by the automatic control system;
and/or the compressor is connected with an automatic control system through a transmission line, and the starting and stopping of the compressor are controlled through the automatic control system;
and/or a compressor pressure sensor is arranged at the position close to the air inlet of the compressor, the compressor pressure sensor is electrically connected with an automatic control system through a transmission line, an electric signal of the helium pressure in the recovery air bag is fed back to the automatic control system, and the automatic control system can automatically control the stop of the compressor according to the electric signal of the helium pressure in the recovery air bag fed back by the compressor pressure sensor through the transmission line;
and/or a high-pressure valve is arranged near the air outlet of the compressor.
9. The helium on-line recovery unit of claim 1, wherein said high pressure cylinder group comprises a plurality of high pressure cylinders, a helium manifold, a manifold pressure sensor, a manifold pressure gauge and a manifold relief valve; the high-pressure gas cylinders are communicated with the helium busbar, and the busbar pressure sensor, the busbar pressure gauge and the busbar safety valve are arranged on the helium busbar.
10. The helium on-line recovery unit according to claim 9, wherein the helium busbar is a stainless steel tube with one end closed and the side surface connected with a plurality of high-pressure gas cylinders; the helium busbar is used for simultaneously introducing compressed helium into a plurality of high-pressure gas cylinders;
and/or the busbar pressure sensor is connected with the automatic control system through a transmission line, and feeds back an electric signal of the helium pressure in the high-pressure gas cylinder to the automatic control system, and the automatic control system can automatically control the stop of the compressor according to the electric signal of the helium pressure in the high-pressure gas cylinder fed back by the busbar pressure sensor through the transmission line.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202321152856.1U CN220102862U (en) | 2023-05-12 | 2023-05-12 | Helium online recovery device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321152856.1U CN220102862U (en) | 2023-05-12 | 2023-05-12 | Helium online recovery device |
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| CN220102862U true CN220102862U (en) | 2023-11-28 |
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