CN114198639A - Automatic invariable system of ultra-low temperature liquid basin pressure - Google Patents
Automatic invariable system of ultra-low temperature liquid basin pressure Download PDFInfo
- Publication number
- CN114198639A CN114198639A CN202111419040.6A CN202111419040A CN114198639A CN 114198639 A CN114198639 A CN 114198639A CN 202111419040 A CN202111419040 A CN 202111419040A CN 114198639 A CN114198639 A CN 114198639A
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- China
- Prior art keywords
- pressure
- liquid
- ultra
- low temperature
- water bath
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 43
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000006200 vaporizer Substances 0.000 claims abstract description 20
- 238000005485 electric heating Methods 0.000 claims abstract description 19
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 17
- 239000010935 stainless steel Substances 0.000 claims abstract description 17
- 238000004321 preservation Methods 0.000 claims abstract description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000001301 oxygen Substances 0.000 claims abstract description 12
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 6
- 238000001802 infusion Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000004913 activation Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 abstract description 8
- 230000000087 stabilizing effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
- F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/043—Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/06—Controlling or regulating of parameters as output values
- F17C2250/0605—Parameters
- F17C2250/0626—Pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses an automatic pressure constant system for an ultralow-temperature liquid storage tank, which comprises an electric heating type water bath vaporizer and a liquid oxygen tank, wherein the oxygen outlet end of the liquid oxygen tank is connected with the electric heating type water bath vaporizer through a liquid oxygen supply pipe; the electric heating type water bath vaporizer comprises a stainless steel heat preservation box body, an electric heating pipe is installed in the inner cavity of the stainless steel heat preservation box body, a temperature sensor and a liquid level sensor are installed in the inner cavity of the stainless steel heat preservation box body respectively, the electric heating type water bath vaporizer further comprises a liquid supplementing pipe, one end of the liquid supplementing pipe extends into the inner cavity of the stainless steel heat preservation box body, and a liquid level supplementing electromagnetic valve is installed on the liquid supplementing pipe.
Description
Technical Field
The invention relates to the technical field of pressure constant systems, in particular to an automatic pressure constant system for an ultralow-temperature liquid storage tank.
Background
The pressure used by the existing gas depends on a system consisting of a gasifier arranged on a low-temperature liquid storage tank and a mechanical spring type pressure reducing valve, so that the gas pressure fluctuation is large, the pressure is unbalanced, and certain potential safety hazards exist, therefore, improvement is needed.
Disclosure of Invention
The present invention is directed to a system for automatically stabilizing the pressure of an ultra-low temperature liquid storage tank, which solves the above-mentioned problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automatic invariable system of ultra-low temperature liquid basin pressure, includes electric heat formula water bath vaporizer and liquid oxygen jar, liquid oxygen jar goes out the oxygen end and is connected with electric heat formula water bath vaporizer through liquid oxygen feed pipe, electric heat formula water bath vaporizer still advances the oxygen end through oxygen muffler and liquid oxygen jar and is connected, still includes the electric cabinet, the electric cabinet is installed in electric heat formula water bath vaporizer outsidely.
Preferably, the present application provides an automatic pressure stabilizing system for an ultra-low temperature liquid storage tank, wherein a liquid oxygen supply solenoid valve and a pneumatic flow control valve are respectively installed on the liquid oxygen supply pipe.
Preferably, the application provides a pair of automatic invariable system of ultra-low temperature liquid storage tank pressure, wherein, electric heat formula water bath vaporizer includes stainless steel heat preservation box, stainless steel heat preservation box inner chamber installation electric heating pipe, temperature sensor and level sensor are installed respectively to stainless steel heat preservation box inner chamber.
Preferably, the application provides a pair of automatic invariable system of ultra-low temperature liquid storage tank pressure, wherein, still include the fluid infusion pipe, stainless steel insulation box inner chamber is stretched into to fluid infusion pipe one end, the last installation liquid level of fluid infusion pipe supplements the solenoid valve.
Preferably, the application provides an automatic constant system for pressure of an ultra-low temperature liquid storage tank, wherein a pressure alarm and a remote pressure alarm transmission system are installed on the electric cabinet.
Preferably, the present application provides an automatic pressure stabilizing system for an ultra-low temperature liquid storage tank, wherein a pressure sensor is further installed on the liquid oxygen tank.
Preferably, the present application provides an automatic pressure equalization system for an ultra-low temperature liquid storage tank, wherein the use method thereof comprises the following steps:
A. the pressure sensor collects the internal pressure of the liquid oxygen tank and transmits the internal pressure to the pressure control processor, and the pressure controller generates a current signal and transmits the current signal to the flow control valve;
B. the flow control valve controls the opening degree of the valve body according to the magnitude of the current signal, so that the flow rate of liquid oxygen flowing into the gasifier is controlled, gas with corresponding amount is generated through energy activation, and corresponding quantized pressure is generated;
C. when the pressure in the storage tank is too low, the pressure controller generates a larger signal current, so that the opening degree of the flow valve is increased, the flow rate of the liquid is increased, the pressure is increased, when the pressure is close to the set value pressure, the signal current is reduced, the opening degree of the flow valve is reduced, a dynamic balance value is reached, and the pressure is balanced on the set value.
Compared with the prior art, the invention has the beneficial effects that: the invention has novel structural design, utilizes electronic analog control to eliminate peaks and valleys of the pressure of the gas, and the pressure is stable within a required set value range.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
In the figure: the device comprises a liquid oxygen tank 1, a liquid oxygen supply pipe 2, an oxygen return pipe 3, an electric cabinet 4, a liquid oxygen supply electromagnetic valve 5, a pneumatic flow control valve 6, a stainless steel heat preservation box body 7, an electric heating pipe 8, a temperature sensor 9, a liquid level sensor 10, a liquid supplementing pipe 11, a liquid level supplementing electromagnetic valve 12, a pressure alarm 13, a remote pressure alarm transmitting system 14 and a pressure sensor 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the present invention provides a technical solution: an automatic pressure constant system for an ultralow-temperature liquid storage tank comprises an electric heating type water bath vaporizer and a liquid oxygen tank 1, wherein the oxygen outlet end of the liquid oxygen tank 1 is connected with the electric heating type water bath vaporizer through a liquid oxygen supply pipe 2, the electric heating type water bath vaporizer is also connected with the oxygen inlet end of the liquid oxygen tank 1 through an oxygen return pipe 3, the electric heating type water bath vaporizer also comprises an electric cabinet 4, and the electric cabinet 4 is arranged outside the electric heating type water bath vaporizer; the liquid oxygen supply pipe 2 is respectively provided with a liquid oxygen supply electromagnetic valve 5 and a pneumatic flow control valve 6.
The electric heating type water bath vaporizer comprises a stainless steel heat preservation box body 7, an electric heating pipe 8 is installed in the inner cavity of the stainless steel heat preservation box body 7, a temperature sensor 9 and a liquid level sensor 10 are installed in the inner cavity of the stainless steel heat preservation box body 7 respectively, the temperature sensor checks and controls water temperature, when the water temperature is too low, the electric heating pipe is started, when the water temperature is too high, the electric heating pipe is closed, the liquid level sensor detects the water level in a water bath box, when the water level is too low, a liquid supplementing valve is started, and when the water level is too high, the liquid supplementing valve is closed; still include liquid supply pipe 11, liquid supply pipe 11 one end stretches into the stainless steel insulation box 7 inner chamber, install liquid level on the liquid supply pipe 11 and supply solenoid valve 12.
In the invention, the electric cabinet 4 is provided with a pressure alarm 13 and a remote pressure alarm transmission system 14, wherein the remote pressure alarm transmission system transmits dynamic pressure parameters to a mobile phone terminal of a supervisor to control the dynamic change of pressure in real time.
In the invention, the liquid oxygen tank 1 is also provided with a pressure sensor 15. The pressure sensor is used for monitoring the oxygen pressure in the liquid oxygen tank in real time.
The working principle is as follows: the using method of the invention comprises the following steps:
A. the pressure sensor collects the internal pressure of the liquid oxygen tank and transmits the internal pressure to the pressure control processor, and the pressure controller generates a current signal and transmits the current signal to the flow control valve;
B. the flow control valve controls the opening degree of the valve body according to the magnitude of the current signal, so that the flow rate of liquid oxygen flowing into the gasifier is controlled, gas with corresponding amount is generated through energy activation, and corresponding quantized pressure is generated;
C. when the pressure in the storage tank is too low, the pressure controller generates a larger signal current, so that the opening degree of the flow valve is increased, the flow rate of the liquid is increased, the pressure is increased, when the pressure is close to the set value pressure, the signal current is reduced, the opening degree of the flow valve is reduced, a dynamic balance value is reached, and the pressure is balanced on the set value.
In conclusion, the invention has novel structural design, utilizes electronic analog control to eliminate the peak and the valley of the pressure of the gas, and the pressure is stable in the range of the required set value.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides an automatic invariable system of ultra-low temperature liquid basin pressure, includes electric heating type water bath vaporizer and liquid oxygen jar (1), its characterized in that: the liquid oxygen tank (1) goes out the oxygen end and is connected with electric heat formula water bath vaporizer through liquid oxygen feed pipe (2), electric heat formula water bath vaporizer still advances the oxygen end through oxygen muffler (3) and liquid oxygen tank (1) and is connected, still includes electric cabinet (4), electric cabinet (4) are installed in electric heat formula water bath vaporizer outside.
2. An ultra-low temperature liquid storage tank pressure autostatic system as recited in claim 1, wherein: and the liquid oxygen supply pipe (2) is respectively provided with a liquid oxygen supply electromagnetic valve (5) and a pneumatic flow control valve (6).
3. An ultra-low temperature liquid storage tank pressure autostatic system as recited in claim 1, wherein: the electric heating type water bath vaporizer comprises a stainless steel heat preservation box body (7), an electric heating pipe (8) is installed in the inner cavity of the stainless steel heat preservation box body (7), and a temperature sensor (9) and a liquid level sensor (10) are installed in the inner cavity of the stainless steel heat preservation box body (7) respectively.
4. An ultra-low temperature liquid storage tank pressure autostatic system as set forth in claim 2, wherein: still include fluid infusion pipe (11), fluid infusion pipe (11) one end stretches into stainless steel insulation box (7) inner chamber, install liquid level on fluid infusion pipe (11) and supply solenoid valve (12).
5. An ultra-low temperature liquid storage tank pressure autostatic system as recited in claim 1, wherein: and a pressure alarm (13) and a remote pressure alarm transmission system (14) are arranged on the electric cabinet (4).
6. An ultra-low temperature liquid storage tank pressure autostatic system as recited in claim 1, wherein: and the liquid oxygen tank (1) is also provided with a pressure sensor (15).
7. Use of an automatic pressure constancy system for ultra-low temperature liquid storage tanks, embodying the features of claim 1, wherein: the using method comprises the following steps:
A. the pressure sensor collects the internal pressure of the liquid oxygen tank and transmits the internal pressure to the pressure control processor, and the pressure controller generates a current signal and transmits the current signal to the flow control valve;
B. the flow control valve controls the opening degree of the valve body according to the magnitude of the current signal, so that the flow rate of liquid oxygen flowing into the gasifier is controlled, gas with corresponding amount is generated through energy activation, and corresponding quantized pressure is generated;
C. when the pressure in the storage tank is too low, the pressure controller generates a larger signal current, so that the opening degree of the flow valve is increased, the flow rate of the liquid is increased, the pressure is increased, when the pressure is close to the set value pressure, the signal current is reduced, the opening degree of the flow valve is reduced, a dynamic balance value is reached, and the pressure is balanced on the set value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111419040.6A CN114198639A (en) | 2021-11-26 | 2021-11-26 | Automatic invariable system of ultra-low temperature liquid basin pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111419040.6A CN114198639A (en) | 2021-11-26 | 2021-11-26 | Automatic invariable system of ultra-low temperature liquid basin pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114198639A true CN114198639A (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111419040.6A Pending CN114198639A (en) | 2021-11-26 | 2021-11-26 | Automatic invariable system of ultra-low temperature liquid basin pressure |
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| CN (1) | CN114198639A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116518292A (en) * | 2023-02-21 | 2023-08-01 | 杭州中泰氢能科技有限公司 | Skid-mounted oxygen supply system |
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| CN111750266A (en) * | 2020-07-29 | 2020-10-09 | 西安医学院第二附属医院 | Oxygen supply system adopting liquid oxygen tank and control method |
| CN112762346A (en) * | 2019-11-06 | 2021-05-07 | 张家港中集圣达因低温装备有限公司 | LNG vehicle bottle and self-pressurization system and method thereof |
| CN113390005A (en) * | 2021-06-08 | 2021-09-14 | 中国科学院理化技术研究所 | Storage tank supercharging device and working method thereof |
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2021
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| CN202660239U (en) * | 2012-05-29 | 2013-01-09 | 杭州杭氧环保成套设备有限公司 | Constant-pressure liquid feed device of cooling system |
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| CN116518292B (en) * | 2023-02-21 | 2024-06-04 | 杭州中泰氢能科技有限公司 | Skid-mounted oxygen supply system |
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Application publication date: 20220318 |