CN214407702U - Ultralow-temperature liquid static mass method calibrating device - Google Patents
Ultralow-temperature liquid static mass method calibrating device Download PDFInfo
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- CN214407702U CN214407702U CN202120370088.1U CN202120370088U CN214407702U CN 214407702 U CN214407702 U CN 214407702U CN 202120370088 U CN202120370088 U CN 202120370088U CN 214407702 U CN214407702 U CN 214407702U
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- 239000007788 liquid Substances 0.000 title claims abstract description 112
- 238000000034 method Methods 0.000 title claims abstract description 41
- 230000003068 static effect Effects 0.000 title claims abstract description 41
- 238000005303 weighing Methods 0.000 claims abstract description 102
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims description 39
- 238000001816 cooling Methods 0.000 claims description 12
- 238000004949 mass spectrometry Methods 0.000 claims description 9
- 238000012795 verification Methods 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 12
- 239000003345 natural gas Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000003556 assay Methods 0.000 description 3
- 230000001186 cumulative effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003949 liquefied natural gas Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an ultra-low temperature liquid static mass method calibrating installation, ultra-low temperature liquid static mass method calibrating installation includes first valve, second valve, third valve, fourth valve, fifth valve, is examined table, low temperature protection jar, the jar of weighing, cryogenic tank, cryogenic storage tank, power supply, switching-over valves, title, hoist mechanism. The utility model provides a static mass method calibrating installation of ultra-low temperature liquid can avoid weighing jar mouth and attached pipe fitting frosting, also can avoid cryogenic liquids to gasify in weighing pipe, can also avoid weighing the isoparametric sensor and holding vessel direct contact to guarantee measured stability and the degree of accuracy.
Description
Technical Field
The utility model relates to a flow measurement technical field especially relates to an ultra-low temperature static mass method calibrating installation of liquid.
Background
The natural gas is clean energy, the realization of diversification, cleanness, high efficiency and low carbonization of the energy is the national policy of the energy, and the development of the natural gas vehicle and ship industry is one of the concrete embodiments. In thirteen five periods, natural gas will be developed into the main power energy of the vehicles in China, and the natural gas for automobiles and ships has the most potential growth. Natural gas also has the most potential growth in civil energy, so trade measurement exists, which is called as the first choice, and then the flowmeter is used, but the measurement in the automobile filling process and the like can only select the flowmeter, so that how to ensure the metering error of the flowmeter is important, and besides the stability and accuracy of the flowmeter, the real-flow calibration close to the medium state is very important. The critical temperature of the liquefied natural gas under the normal pressure state is-162 ℃, the method is generally used for verifying by using liquid nitrogen with higher safety factor considering the flammability and explosiveness of the natural gas, and the critical temperature of the liquid nitrogen under the normal pressure state is-196 ℃, which is enough to meet the verification requirement. The current detection method is mainly a comparison method, namely an emerson flowmeter is used as a standard table for comparison.
The dynamic mass method used by the national institute of standards and technology, with a system expansion uncertainty of 0.17%, k 2. Static mass methods can provide a level of uncertainty for an assay system. The existing low-temperature calibrating device has the following difficulties: the weighing tank mouth and the attached pipe fitting are frosted (water molecule precooling in the air), the low-temperature liquid is gasified in the weighing pipe (the volume of the low-temperature liquid is about 1 to several hundreds of the volume of the same amount of gas), and the weighing (metering) tank and the weighing sensors cannot be directly contacted with the storage tank.
SUMMERY OF THE UTILITY MODEL
In order to solve the limitations and defects of the prior art, the utility model provides an ultra-low temperature liquid static mass method calibrating device, which comprises a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a to-be-detected meter, a low temperature protection tank, a weighing tank, a deep cooling tank, a low temperature storage tank, a power source, a reversing valve group, a scale and a lifting mechanism;
the bottom of the low-temperature protection tank is connected with the power source through the third valve, the low-temperature protection tank is made of a vacuum tank, the weighing tank is arranged at the upper part in the low-temperature protection tank, and the low-temperature protection tank is used for storing low-temperature media used for verification and performing low-temperature protection on the weighing tank to prevent the weighing tank from frosting;
the liquid weighing device comprises a weighing tank, a scale, a reversing valve group, a lifting mechanism, a weighing sensor, a scale and a lifting mechanism, wherein a liquid to be measured is loaded in the weighing tank, the top end of the weighing tank is connected with the scale, the bottom end of the weighing tank is connected with the reversing valve group, the reversing valve group and the lifting mechanism form a reversing system, the scale is used for weighing the weight of the liquid, the upper part of the scale is connected with the lower end of the lifting mechanism, the lower part of the scale is connected with the weighing tank through 3 connecting rods so as to avoid transmitting the low temperature to the weighing sensor, and the top end of the lifting mechanism is fixed on an immovable object;
the weighing tank passes through first valve with the one end of quilt inspection table is connected, the other end of quilt inspection table passes through the second valve with the cryrogenic jar is connected, the cryrogenic jar is used for cooling down to retrieving liquid, the one end of cryrogenic jar is passed through the fifth valve is connected with the low temperature storage tank, the other end of cryrogenic jar with the power supply is connected, the low temperature storage tank passes through the fourth valve with the power supply is connected, the low temperature storage tank is used for providing the used cryogenic liquids of examination.
Optionally, the power source is a cryogenic pump or a compressor.
Optionally, the reversing valve group comprises a sealing block, a link mechanism, a liquid diversion hole, a sealing joint surface, a weighing tank and a thimble;
the sealing block is connected with the liquid diversion hole through the connecting rod mechanism, the weighing tank is arranged below the sealing block and fixedly connected with the liquid diversion hole, the sealing joint surface is arranged between the sealing block and the weighing tank, the ejector pin is arranged below the weighing tank, the ejector pin is opposite to the sealing block, and the ejector pin and the connecting rod mechanism are located on the same axis.
Optionally, the outer shell of the cryogenic tank is made using vacuum.
The utility model discloses following beneficial effect has:
the utility model provides a static mass method calibrating installation of ultra-low temperature liquid, including first valve, second valve, third valve, fourth valve, fifth valve, examined table, low temperature protection jar, weighing jar, deep cooling jar, low temperature storage tank, power supply, switching-over valves, title, hoist mechanism. The utility model provides a static mass method calibrating installation of ultra-low temperature liquid can avoid weighing jar mouth and attached pipe fitting frosting, also can avoid cryogenic liquids to gasify in weighing pipe, can also avoid weighing the isoparametric sensor and holding vessel direct contact to guarantee measured stability and the degree of accuracy.
Drawings
Fig. 1 is a schematic structural diagram of an ultra-low temperature liquid static mass method calibration apparatus provided by the embodiment of the present invention.
Fig. 2 is a schematic view of a first state of the ultralow temperature liquid static mass spectrometry calibration apparatus according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a second state of the ultralow temperature liquid static mass spectrometry calibration apparatus according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a third state of the ultralow temperature liquid static mass spectrometry calibration apparatus according to the embodiment of the present invention.
Fig. 5 is a schematic diagram of a fourth state of the ultralow temperature liquid static mass spectrometry calibration apparatus according to the embodiment of the present invention.
Fig. 6 is a block diagram of an ultra-low temperature liquid static mass method calibration apparatus according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a reversing valve group according to an embodiment of the present invention.
Wherein the reference numerals are: the device comprises a first valve-11, a second valve-12, a third valve-13, a fourth valve-14, a fifth valve-15, a detected meter-20, a low-temperature protection tank-21, a weighing tank-22, a deep cooling tank-23, a low-temperature storage tank-24, a power source-30, a reversing valve group-31, a scale-32, a lifting mechanism-33, a sealing block-1, a link mechanism-2, a liquid diversion hole-3, a sealing joint surface-4 and a thimble-6.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the ultra-low temperature liquid static mass method calibration apparatus provided by the present invention in detail with reference to the attached drawings.
Example one
Fig. 1 is a schematic structural diagram of an ultra-low temperature liquid static mass method calibration apparatus provided by the embodiment of the present invention. Fig. 2 is a schematic view of a first state of the ultralow temperature liquid static mass spectrometry calibration apparatus according to an embodiment of the present invention. Fig. 3 is a schematic diagram of a second state of the ultralow temperature liquid static mass spectrometry calibration apparatus according to an embodiment of the present invention. Fig. 4 is a schematic diagram of a third state of the ultralow temperature liquid static mass spectrometry calibration apparatus according to the embodiment of the present invention. Fig. 5 is a schematic diagram of a fourth state of the ultralow temperature liquid static mass spectrometry calibration apparatus according to the embodiment of the present invention. As shown in fig. 1 to 5, the present embodiment provides an ultralow temperature liquid static mass method calibration apparatus, which includes a first valve 11, a second valve 12, a third valve 13, a fourth valve 14, a fifth valve 15, a meter to be tested 20, a cryogenic protection tank 21, a weighing tank 22, a cryogenic tank 23, a cryogenic storage tank 24, a power source 30, a reversing valve group 31, a scale 32, and a lifting mechanism 33. The ultra-low temperature liquid static mass method calibrating installation that this embodiment provided can avoid weighing jar mouth and attached pipe fitting frosting, also can avoid low temperature liquid to gasify in weighing pipe, can also avoid weighing the equal sensor and holding vessel direct contact to guarantee measured stability and degree of accuracy.
In this embodiment, the bottom of the cryogenic protection tank 21 is connected to the power source 30 through the third valve 13, the cryogenic protection tank 21 is made of a vacuum tank, the weighing tank 22 is disposed at the upper portion inside the cryogenic protection tank 21, and the cryogenic protection tank 21 is used for storing a cryogenic medium used for verification, and performing cryogenic protection on the weighing tank 22 to prevent the weighing tank 22 from frosting.
Fig. 6 is a block diagram of an ultra-low temperature liquid static mass method calibration apparatus according to an embodiment of the present invention. As shown in fig. 1 to 5, the liquid to be measured is loaded inside the weighing tank 22, the top end of the weighing tank 22 is connected to the scale 32, the bottom end of the weighing tank 22 is connected to the reversing valve group 31, the reversing valve group 31 and the lifting mechanism 33 form a reversing system, the scale 32 is used for weighing the weight of the liquid, the upper portion of the scale 32 is connected to the lower end of the lifting mechanism 33, the lower portion of the scale 32 is connected to the weighing tank 22 through 3 connecting rods so as to avoid transmitting the low temperature to the weighing sensor, and the top end of the lifting mechanism 33 is fixed to an immovable object.
In this embodiment, the weighing tank 22 is connected to one end of the meter 20 to be detected through the first valve 11, the other end of the meter 20 to be detected is connected to the cryogenic tank 23 through the second valve 12, the cryogenic tank 23 is used for cooling the recovered liquid, one end of the cryogenic tank 23 is connected to the low-temperature storage tank 24 through the fifth valve, the other end of the cryogenic tank 23 is connected to the power source 30, the low-temperature storage tank 24 is connected to the power source 30 through the fourth valve 14, and the low-temperature storage tank 24 is used for providing the low-temperature liquid for verification.
Fig. 7 is a schematic structural diagram of a reversing valve group according to an embodiment of the present invention. As shown in fig. 7, the power source 30 is a cryopump or a compressor, and the reversing valve assembly 31 includes a sealing block 1, a link mechanism 2, a liquid guiding hole 3, a sealing joint surface 4, a weighing tank 22, and a thimble 6; the sealing block 1 is connected with the liquid diversion hole 3 through the link mechanism 2, the weighing tank 22 is arranged below the sealing block 1, the weighing tank 22 is fixedly connected with the liquid diversion hole 3, the sealing combination surface 4 is arranged between the sealing block 1 and the weighing tank 22, the thimble 6 is arranged below the weighing tank 22, the thimble 6 is arranged opposite to the sealing block 1, the thimble 6 and the link mechanism 2 are positioned on the same axis, and the shell of the cryogenic tank 23 is manufactured by vacuum.
Referring to fig. 1-5, 5 valves are used to control the on-off of the pipeline, and the flow direction of the medium in the pipeline is changed according to the requirement, and the power source can be a cryogenic pump or a compressor. The low-temperature protection tank is made of a vacuum tank and used for storing low-temperature media for verification, and the weighing tank is subjected to low-temperature protection to prevent frosting. The weighing tank, also called metering tank, provided by the embodiment is connected with the scale and used for loading the liquid to be measured. The shell of the deep cooling tank is made in vacuum and is used for cooling the recovered liquid. The low-temperature storage tank is used for providing low-temperature liquid required by verification, and the reversing valve group and the hoisting machine form a reversing system. The scale is used for weighing the liquid weight, upwards links to each other with hoist mechanism, and is linked to each other with weighing tank through 3 connecting rods downwards, avoids low temperature to transmit for weighing sensor. The lifting mechanism is fixedly arranged on the immovable object, and the prompting mechanism is connected with the scale.
The ultralow-temperature liquid static mass method calibrating device provided by the embodiment comprises a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a to-be-detected meter, a low-temperature protection tank, a weighing tank, a deep cooling tank, a low-temperature storage tank, a power source, a reversing valve group, a scale and a lifting mechanism. The ultra-low temperature liquid static mass method calibrating installation that this embodiment provided can avoid weighing jar mouth and attached pipe fitting frosting, also can avoid low temperature liquid to gasify in weighing pipe, can also avoid weighing the equal sensor and holding vessel direct contact to guarantee measured stability and degree of accuracy.
Example two
The present embodiment provides a method for verifying an ultra-low-temperature liquid static mass method, where the apparatus for verifying an ultra-low-temperature liquid static mass method provided in the first embodiment is used in the method for verifying an ultra-low-temperature liquid static mass method, and specific contents refer to the description of the first embodiment, and are not described herein again.
Referring to fig. 2, the method for calibrating the ultralow temperature liquid static mass method provided in this embodiment includes: the third valve 13 and the fifth valve 15 are closed, the first valve 11, the second valve 12 and the fourth valve 14 are opened, the power source 30 is started, liquid enters the cryogenic tank 23 to cool the liquid, the liquid after entering the cryogenic tank 23 enters the to-be-detected meter 20 to ensure the low-temperature state of the liquid and prevent the liquid from heating and gasifying, the lifting mechanism 33 in the reversing system falls down, the reversing valve group 31 is opened, the liquid entering the weighing tank 22 flows into the low-temperature protection tank 21, and when the liquid reaches a preset liquid level, the precooling of the to-be-detected meter 20 is completed.
Referring to fig. 3, the first valve 11 is closed, the fifth valve 15 is opened, the reversing system is closed, the scale 32 is lifted, and the tare weight Q0 of the weighing tank 22 is read after the reading of the scale 32 is stabilizedij. The ultralow temperature liquid static mass method calibrating device provided by the embodiment can avoid frosting of the weighing tank opening and the accessory pipe fittings thereof and can also avoid the low temperature liquid in the weighing pipeIn the gasification, the sensors such as weighing can be prevented from being in direct contact with the storage tank, so that the stability and accuracy of measurement are ensured.
Referring to fig. 4, the fifth valve 15 is closed, the first valve 11 is opened, the reversing system is opened, after the flow rate is stabilized, the reversing system is closed, the low-temperature liquid exists in the weighing tank 22, and the control system starts counting to count the number of pulses output by the meter under test 20. When the pulse number reaches a preset value, the first valve 11 is closed, the fifth valve 15 is opened, and meanwhile, the control system finishes counting NijAfter the reading of the scale 32 is stabilized, the Q1 is readij. Opening the reversing system, emptying the liquid in the weighing tank 22, if the liquid in the low-temperature protection tank 21 is higher than a preset liquid level, closing the fourth valve 14, opening the third valve 13, and when the liquid in the low-temperature protection tank 21 is reduced to the preset liquid level, closing the third valve 13, opening the fourth valve 14, and continuing to extract the liquid from the low-temperature storage tank 24.
Referring to fig. 5, the fourth valve 14 and the second valve 12 are closed, the third valve 13 and the fifth valve 15 are opened, and the liquid flows from the cryogenic protection tank 21 into the cryogenic tank 23, and returns to the cryogenic storage tank 24 after being cooled by the cryogenic tank 23.
In this embodiment, the cumulative mass measured by the ultralow temperature liquid static mass method calibration apparatus is: qsij＝Q1ij-Q0ijThe cumulative pulse number of the table 20 to be checked is: qij＝NijK, error calculation formula for single assay as follows:
wherein Q isijIs the cumulative number of pulses, Qs, of the table 20 under testijThe accumulated mass measured by the ultralow temperature liquid static mass method calibrating device.
Referring to fig. 7, the method for calibrating the ultralow temperature liquid static mass method provided in this embodiment further includes: when the lifting mechanism 33 lifts the scale 32, the scale 32 drives the weighing tank 22 to lift, the sealing block 1 is separated from the thimble 6, the sealing block 1 moves downwards under the action of the spring of the link mechanism 2, and the sealing block 1 is combined with the sealing combination surface 4 to play a role of sealing. When the lifting mechanism 33 is put down, the weighing tank 22 moves downwards under the action of gravity, the thimble 6 pushes the sealing block 1 to move upwards, a gap is formed between the sealing combination surface 4 and the sealing block 1, and liquid flows out through the gap.
The steps of the inlet liquid of the low-temperature protection tank and the precooling of the detected table provided by the embodiment are as follows: closing the third valve 13 and the fifth valve 15, opening the first valve 11, the second valve 12 and the fourth valve 14, starting the power source, in order to ensure the temperature of the liquid and prevent the liquid from being heated and gasified, the liquid enters the cryogenic tank 23 before entering the tested meter to cool the liquid, a lifting mechanism 33 in the reversing system falls down, a reversing valve group is opened, the liquid entering the weighing tank flows into the low-temperature protection tank 21, when the liquid reaches the liquid level enough for protection, the pre-cooling of the tested meter is completed, and the process is finished.
The weighing tank provided by this embodiment has the following steps: after precooling is finished, the first valve 11 is closed, the fifth valve 15 is opened, the reversing system is closed, the scale 32 is lifted, and the tare weight Q0 of the weighing tank is read after stabilizationij。
After the step of weighing the weighing tank, the fifth valve 15 is closed, the first valve 11 is opened, the reversing system is opened, after the flow is stable, the reversing system is closed, the low-temperature liquid exists in the weighing tank, and meanwhile, the control system starts counting (counting the output pulse number of the meter to be detected).
When the predetermined value is reached, the first valve 11 is closed and the fifth valve 15 is opened, and the control system ends counting NijRead Q1 after the nominal reading number has stabilizedij. And (3) opening the weighing ending reversing system, emptying the liquid in the weighing tank 22, closing the fourth valve 14 if the liquid level of the low-temperature protection tank 21 is high, opening the third valve 13, closing the third valve 13 when the liquid level is lowered to a reasonable position, opening the fourth valve 14, and continuously taking the liquid from the storage tank.
The liquid recovery procedure provided in this example was as follows: in the liquid recovery process, the fourth valve 14 and the second valve 12 are closed, the third valve 13 and the fifth valve 15 are opened, and the liquid returns to the low-temperature storage tank 24 after being cooled by the cryogenic tank 23 from the low-temperature protection tank 21.
In this embodiment, the device measures the accumulated mass as Qsij＝Q1ij-Q0ij；
The table under test accumulates to Qij＝Nij/K；
The error for a single assay is as follows:
referring to fig. 6 and 7, in the reversing valve set provided by this embodiment, since the weighing tank is in the low-temperature gas protection state, the actuator can not work at low temperature no matter whether a pneumatic valve or an electric valve is adopted, and the working principle is as follows:
when the scale is lifted by the lifting mechanism and is connected with the weighing tank, the weighing tank is lifted, the sealing block is separated from the thimble, and meanwhile, the sealing block is pushed downwards under the action of a spring of the connecting rod mechanism, so that the sealing block is combined with the sealing surface to play a sealing role;
on the contrary, when the lifting mechanism is put down, the weighing tank is downward due to gravity, the thimble pushes the sealing block upward, a gap is formed between the sealing surface and the sealing block, and liquid flows out.
The calibration device for the ultralow-temperature liquid static mass method provided by the embodiment comprises a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a to-be-inspected meter, a low-temperature protection tank, a weighing tank, a deep cooling tank, a low-temperature storage tank, a power source, a reversing valve group, a scale and a lifting mechanism. The ultra-low temperature liquid static mass method calibrating installation that this embodiment provided can avoid weighing jar mouth and attached pipe fitting frosting, also can avoid low temperature liquid to gasify in weighing pipe, can also avoid weighing the equal sensor and holding vessel direct contact to guarantee measured stability and degree of accuracy.
It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (4)
1. An ultralow-temperature liquid static mass method calibration device is characterized by comprising a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a to-be-detected meter, a low-temperature protection tank, a weighing tank, a deep cooling tank, a low-temperature storage tank, a power source, a reversing valve group, a scale and a lifting mechanism;
the bottom of the low-temperature protection tank is connected with the power source through the third valve, the low-temperature protection tank is made of a vacuum tank, the weighing tank is arranged at the upper part in the low-temperature protection tank, and the low-temperature protection tank is used for storing low-temperature media used for verification and performing low-temperature protection on the weighing tank to prevent the weighing tank from frosting;
the liquid weighing device comprises a weighing tank, a scale, a reversing valve group, a lifting mechanism, a weighing sensor, a scale and a lifting mechanism, wherein a liquid to be measured is loaded in the weighing tank, the top end of the weighing tank is connected with the scale, the bottom end of the weighing tank is connected with the reversing valve group, the reversing valve group and the lifting mechanism form a reversing system, the scale is used for weighing the weight of the liquid, the upper part of the scale is connected with the lower end of the lifting mechanism, the lower part of the scale is connected with the weighing tank through 3 connecting rods so as to avoid transmitting the low temperature to the weighing sensor, and the top end of the lifting mechanism is fixed on an immovable object;
the weighing tank passes through first valve with the one end of quilt inspection table is connected, the other end of quilt inspection table passes through the second valve with the cryrogenic jar is connected, the cryrogenic jar is used for cooling down to retrieving liquid, the one end of cryrogenic jar is passed through the fifth valve is connected with the low temperature storage tank, the other end of cryrogenic jar with the power supply is connected, the low temperature storage tank passes through the fourth valve with the power supply is connected, the low temperature storage tank is used for providing the used cryogenic liquids of examination.
2. The ultra-low temperature liquid static mass method calibration device as claimed in claim 1, wherein the power source is a cryopump or a compressor.
3. The ultralow-temperature liquid static mass method calibration device according to claim 1, wherein the reversing valve group comprises a sealing block, a link mechanism, a liquid guide hole, a sealing joint surface, a weighing tank and a thimble;
the sealing block is connected with the liquid diversion hole through the connecting rod mechanism, the weighing tank is arranged below the sealing block and fixedly connected with the liquid diversion hole, the sealing joint surface is arranged between the sealing block and the weighing tank, the ejector pin is arranged below the weighing tank, the ejector pin is opposite to the sealing block, and the ejector pin and the connecting rod mechanism are located on the same axis.
4. The ultra-low temperature liquid static mass spectrometry apparatus of claim 1, wherein the housing of the cryogenic tank is fabricated using vacuum.
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| CN202120370088.1U CN214407702U (en) | 2021-02-11 | 2021-02-11 | Ultralow-temperature liquid static mass method calibrating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113252144A (en) * | 2021-02-11 | 2021-08-13 | 烟台中隆仪表有限公司 | Ultralow-temperature liquid static mass method calibration device and method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252144A (en) * | 2021-02-11 | 2021-08-13 | 烟台中隆仪表有限公司 | Ultralow-temperature liquid static mass method calibration device and method thereof |
| CN113252144B (en) * | 2021-02-11 | 2025-02-07 | 烟台中隆仪表有限公司 | A static mass method calibration device and method for ultra-low temperature liquid |
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Effective date of registration: 20240129 Address after: No. 191 Wangbai Road, Xiangfu District, Kaifeng City, Henan Province, 475000 Patentee after: Zhonglong Feitian Instrument (Kaifeng) Co.,Ltd. Country or region after: China Address before: 265500 Songxia Road 189, Fushan District, Yantai City, Shandong Province Patentee before: YANTAI ZHONGLONG INSTRUMENT Co.,Ltd. Country or region before: China |
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Effective date of registration: 20240311 Address after: 265500 Songxia Road 189, Fushan District, Yantai City, Shandong Province Patentee after: YANTAI ZHONGLONG INSTRUMENT Co.,Ltd. Country or region after: China Address before: No. 191 Wangbai Road, Xiangfu District, Kaifeng City, Henan Province, 475000 Patentee before: Zhonglong Feitian Instrument (Kaifeng) Co.,Ltd. Country or region before: China |