CN112978837A - Gas field water tank work system - Google Patents
Gas field water tank work system Download PDFInfo
- Publication number
- CN112978837A CN112978837A CN201911294863.3A CN201911294863A CN112978837A CN 112978837 A CN112978837 A CN 112978837A CN 201911294863 A CN201911294863 A CN 201911294863A CN 112978837 A CN112978837 A CN 112978837A
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- Prior art keywords
- pressure
- gas
- water tank
- field water
- valve
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- 239000003672 gas field water Substances 0.000 title claims abstract description 147
- 239000007789 gas Substances 0.000 claims abstract description 85
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910001882 dioxygen Inorganic materials 0.000 claims abstract description 40
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000003345 natural gas Substances 0.000 claims abstract description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 20
- 238000004891 communication Methods 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- 230000001502 supplementing effect Effects 0.000 abstract description 22
- 230000008859 change Effects 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides a gas field water pitcher operating system belongs to oil gas field ground engineering field. In the gas field water tank working system, a non-oxygen gas source is communicated with a gas inlet of a first pressure reducing valve, a gas outlet of the first pressure reducing valve is communicated with a gas inlet of a second pressure reducing valve, and a gas outlet of the second pressure reducing valve is communicated with the gas field water tank. The pressure supplementing gas provided by the non-oxygen gas source sequentially flows through the first pressure reducing valve and the second pressure reducing valve until the gas field water tank is subjected to pressure supplementing, and the non-oxygen gas source does not contain oxygen, so that the pressure supplementing gas cannot react with the gas field water and natural gas, and the use safety of the gas field water tank is improved. The output pressure of the second pressure reducing valve is lower than that of the first pressure reducing valve, the pressure of the pressure supplementing gas is sequentially reduced to the output pressure of the first pressure reducing valve and the output pressure of the second pressure reducing valve, the pressure supplementing gas is input into the gas field water tank at stable pressure, the situation of sudden pressure change in the gas field water tank is avoided, and the impact of the gas field water tank is reduced.
Description
Technical Field
The disclosure relates to the field of oil and gas field ground engineering, in particular to a gas field water tank working system.
Background
The gas field water tank is used for receiving gas field water obtained after gas-liquid separation of natural gas, and the gas field water in the gas field water tank is stored too much and then is discharged to a reinjection station or a treatment station. In the process of receiving and discharging gas field water from the gas field water tank, pressure fluctuation is generated in the gas field water tank.
When the gas field water tank discharges the gas field water, the pressure in the gas field water tank is suddenly reduced, the gas field water tank becomes a negative pressure space, and the gas field water tank sucks air along with the negative pressure space to keep the pressure in the gas field water tank. However, the gas field water actually contains flammable natural gas, the gas field water tank is exposed to explosion risk due to the air, and the safety of the gas field water tank during operation is low.
Disclosure of Invention
The embodiment of the disclosure provides a gas field water tank working system, which can improve the safety of a gas field water tank in working. The technical scheme is as follows:
the embodiment of the disclosure provides a gas field water tank working system, which comprises a non-oxygen gas source, a first pressure reducing valve, a second pressure reducing valve and a gas field water tank, wherein the non-oxygen gas source is communicated with a gas inlet of the first pressure reducing valve, a control port of the first pressure reducing valve is communicated with a gas outlet of the first pressure reducing valve, a gas outlet of the first pressure reducing valve is communicated with a gas inlet of the second pressure reducing valve, a control port of the second pressure reducing valve is communicated with a gas outlet of the second pressure reducing valve, and a gas outlet of the second pressure reducing valve is communicated with the gas field water tank,
the output pressure of the second pressure reducing valve is lower than the output pressure of the first pressure reducing valve.
Optionally, the non-oxygen gas source is for providing at least one of natural gas and nitrogen.
Optionally, the difference between the pressure of the air inlet of the first reducing valve and the pressure of the air outlet of the second reducing valve is 0.4-15 MPa.
Optionally, the gas field water tank work system further comprises a needle valve, an air inlet of the needle valve is communicated with the non-oxygen gas source, and an air outlet of the needle valve is communicated with an air inlet of the first pressure reducing valve.
Optionally, the gas field water tank work system further comprises a check valve, wherein an air inlet of the check valve is communicated with an air outlet of the second pressure reducing valve, and an air outlet of the check valve is communicated with the gas field water tank.
Optionally, the gas field water tank work system further comprises a first stop valve, an air inlet of the first stop valve is communicated with an air outlet of the check valve, and an air outlet of the first stop valve is communicated with the gas field water tank.
Optionally, the gas field water tank work system further comprises a second stop valve, an air inlet of the second stop valve is communicated with the non-oxygen gas source, and an air outlet of the second stop valve is communicated with the needle valve.
Optionally, the gas field water tank work system further comprises a pressure gauge, and the pressure gauge is arranged between the second stop valve and the gas field water tank.
Optionally, the gas field water tank working system further includes a pressure release valve and a safety valve, a control opening of the pressure release valve is communicated with an air inlet of the pressure release valve, an air inlet of the pressure release valve is communicated with the gas field water tank, a control opening of the safety valve is communicated with an air inlet of the safety valve, an air inlet of the safety valve is communicated with the gas field water tank, and an output pressure of the safety valve is higher than an output pressure of the pressure release valve.
Optionally, the gas field water tank working system further comprises an alarm for sending an alarm signal when the pressure in the gas field water tank exceeds the output pressure of the safety valve.
The technical scheme provided by the embodiment of the disclosure has the following beneficial effects: in the gas field water tank working system, a non-oxygen gas source is communicated with a gas inlet of a first reducing valve, a control port of the first reducing valve is communicated with a gas outlet of the first reducing valve, a gas outlet of the first reducing valve is communicated with a gas inlet of a second reducing valve, a control port of the second reducing valve is communicated with a gas outlet of the second reducing valve, and a gas outlet of the second reducing valve is communicated with the gas field water tank. The pressure supplementing gas provided by the non-oxygen gas source sequentially flows through the first pressure reducing valve and the second pressure reducing valve until the gas field water tank is subjected to pressure supplementing, and the non-oxygen gas source does not contain oxygen, so that the pressure supplementing gas cannot react with the gas field water and natural gas, and the use safety of the gas field water tank is improved. And because the pressure supplementing gas sequentially passes through the first pressure reducing valve and the second pressure reducing valve, the output pressure of the second pressure reducing valve is lower than the output pressure of the first pressure reducing valve, the pressure of the pressure supplementing gas is sequentially reduced to the output pressure of the first pressure reducing valve and the output pressure of the second pressure reducing valve, and the pressure supplementing gas can be input into the gas field water tank at relatively stable pressure, so that the condition of sudden pressure change in the gas field water tank is avoided, the impact of the gas field water tank is reduced, and the safety of the gas field water tank during working is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings used in the description of the embodiments will be briefly introduced,
fig. 1 is a schematic diagram of a gas field water tank working system provided in an embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a gas field water tank working system provided in an embodiment of the present disclosure, and as shown in fig. 1, the gas field water tank working system includes a non-oxygen gas source 101, a first pressure reducing valve 102, a second pressure reducing valve 103, and a gas field water tank 104, where the non-oxygen gas source 101 is communicated with a gas inlet of the first pressure reducing valve 102, a control port of the first pressure reducing valve 102 is communicated with a gas outlet of the first pressure reducing valve 102, a gas outlet of the first pressure reducing valve 102 is communicated with a gas inlet of the second pressure reducing valve 103, a control port of the second pressure reducing valve 103 is communicated with a gas outlet of the second pressure reducing valve 103, and a gas outlet of the second pressure reducing valve 103 is.
The output pressure of the second pressure reducing valve 103 is lower than the output pressure of the first pressure reducing valve 102.
The output pressure of the pressure reducing valve refers to the pressure at the outlet of the pressure reducing valve when the pressure reducing valve is in operation. The pressure relief valve may stabilize the outlet pressure at the output pressure when a higher pressure is input at the inlet. The output pressure is typically lower than the pressure at the inlet of the pressure relief valve. For a variable relief valve, the output pressure is typically adjustable.
In the gas field water tank working system, a non-oxygen gas source 101 is communicated with a gas inlet of a first pressure reducing valve 102, a control port of the first pressure reducing valve 102 is communicated with a gas outlet of the first pressure reducing valve 102, a gas outlet of the first pressure reducing valve 102 is communicated with a gas inlet of a second pressure reducing valve 103, a control port of the second pressure reducing valve 103 is communicated with a gas outlet of the second pressure reducing valve 103, and a gas outlet of the second pressure reducing valve 103 is communicated with a gas field water tank 104. The pressure supplementing gas provided by the non-oxygen gas source 101 sequentially flows through the first pressure reducing valve 102 and the second pressure reducing valve 103 until the gas field water tank 104 is subjected to pressure supplementing, and the non-oxygen gas source 101 does not contain oxygen, so that the pressure supplementing gas cannot react with the gas field water and natural gas, and the use safety of the gas field water tank 104 is improved. And because the pressure supplementing gas passes through the first pressure reducing valve 102 and the second pressure reducing valve 103 in sequence, the output pressure of the second pressure reducing valve 103 is lower than the output pressure of the first pressure reducing valve 102, the pressure of the pressure supplementing gas is reduced to the output pressure of the first pressure reducing valve 102 and the output pressure of the second pressure reducing valve 103 in sequence, and the pressure supplementing gas can be input into the gas field water tank 104 at a relatively stable pressure, so that the situation of sudden pressure change in the gas field water tank 104 is avoided, the impact of the gas field water tank 104 is reduced, and the safety of the gas field water tank 104 during working is improved.
It should be noted that, the gas field water tank 104 actually operates under normal pressure, and therefore, the arrangement of the first pressure reducing valve 102 and the second pressure reducing valve 103 can also avoid the situation that the gas supplementing pressure from the non-oxygen gas source 101 is too high to cause overpressure in the gas field water tank 104, and the like.
Optionally, a non-oxygen gas source 101 is used to provide a gas comprising at least one of natural gas and nitrogen.
The non-oxygen gas source 101 is configured to provide at least one of natural gas and nitrogen, wherein natural gas is readily available in the operating environment of the gas field tank 104, and wherein nitrogen reduces the proportion of hazardous gas in the non-oxygen gas source 101 and reduces the likelihood of explosion or combustion of the gas in the event of a leak in the gas field tank 104. This arrangement is convenient and the make-up gas will not react with the gas in the gas field water tank 104.
Illustratively, in one implementation provided by the present disclosure, the non-oxygen gas source 101 may also provide only natural gas or only nitrogen.
When the non-oxygen gas source 101 only comprises natural gas or only comprises nitrogen, the purity of the pressure compensation gas is high, and the pressure is easy to control when pressure compensation is carried out.
In other implementations provided by the present disclosure, the non-oxygen gas source 101 may also be argon or other difficult-to-react gas, and the present disclosure is not limited thereto.
Illustratively, the non-oxygen gas source 101 may be a gas cylinder or a gas storage device. The present disclosure is not limited thereto.
Alternatively, the output pressure of the second pressure reducing valve 103 may be 0.01 to 0.05 MPa.
When the output pressure of the second pressure reducing valve 103 is within this range, the pressure entering the gas field water tank 104 can be controlled to be relatively stable, and the gas field water tank 104 can work under a relatively stable pressure condition.
In other implementations provided by the present disclosure, the output pressure of the second pressure reducing valve 103 may also be set to other ranges, and the pressure of the pressure-supplementing gas entering the gas field water tank 104 may be kept stable.
It should be noted that, when the first pressure reducing valve 102 is in an operating state, the pressure at the air outlet of the first pressure reducing valve 102 is always equal to the output pressure. As well as a second pressure reducing valve 103.
For example, the difference between the inlet pressure of the first pressure reducing valve 102 and the output pressure of the second pressure reducing valve 103 may be 4 to 13 MPa.
When the difference between the pressure of the inlet of the first pressure reducing valve 102 and the output pressure of the second pressure reducing valve 103 is within the above range, the pressure-supplementing gas flows from the first pressure reducing valve 102 to the second pressure reducing valve 103, and the pressure of the pressure-supplementing gas does not change excessively, so that the stability of the pressure-supplementing gas is ensured. Particularly, when the gas is natural gas, the throttling expansion of the natural gas can be avoided, and the stable work of the first pressure reducing valve 102 and the second pressure reducing valve 103 is ensured.
In other implementations provided by the present disclosure, the difference between the inlet pressure of the first pressure reducing valve 102 and the output pressure of the second pressure reducing valve 103 may be outside this range, and compared to the conventional method, the present disclosure still has the effect of keeping the pressure compensation gas stably entering the gas field water tank 104.
As shown in fig. 1, the gas field water tank working system 1 may further include a needle valve 105, wherein an air inlet of the needle valve 105 is communicated with the non-oxygen gas source 101, and an air outlet of the needle valve 105 is communicated with an air inlet of the first pressure reducing valve 102.
The needle valve 105 connected between the non-oxygen gas source 101 and the first pressure reducing valve 102 can control the flow of the pressure supplementing gas flowing out of the non-oxygen gas source 101, reduce the impact of the pressure supplementing gas on the first pressure reducing valve 102, and prolong the service life of the gas field water tank working system 1.
Optionally, the gas field water tank working system 1 may further comprise a check valve 106, an air inlet of the check valve 106 being in communication with an air outlet of the second pressure reducing valve 103, and an air outlet of the check valve 106 being in communication with the gas field water tank 104.
The check valve 106 between the second pressure reducing valve 103 and the gas field water tank 104 can prevent the gas in the gas field water tank 104 from flowing into the non-oxygen gas source 101, and maintain the purity and pressure of the gas in the non-oxygen gas source 101 stable.
As shown in fig. 1, the gas field water tank working system 1 may further include a first shut-off valve 107, an air inlet of the first shut-off valve 107 being in communication with an air outlet of the check valve 106, and an air outlet of the first shut-off valve 107 being in communication with the gas field water tank 104.
The first shut-off valve 107 may control the on/off of the line between the check valve 106 and the gas field water tank 104, and closing the first shut-off valve 107 may indicate commissioning of the gas field water tank work system 1 or the gas field water tank 104.
Optionally, the gas field water tank working system 1 may further comprise a second stop valve 108, wherein an air inlet of the second stop valve 108 is communicated with the non-oxygen gas source 101, and an air outlet of the second stop valve 108 is communicated with the needle valve 105.
The second stop valve 108 is located between the needle valve 105 and the non-oxygen gas source 101, and the second stop valve 108 is used for controlling the on-off of the route between the non-oxygen gas source 101 and the needle valve 105, so as to realize the debugging and the adjustment of the working state of the non-oxygen gas source 101.
As shown in fig. 1, the gas field water tank working system may further include a pressure gauge 109, and the pressure gauge 109 is disposed between the second shut-off valve 108 and the gas field water tank 104.
The pressure gauge 109 arranged between the second stop valve 108 and the gas field water tank 104 can monitor the pressure of the pressure supplementing gas entering the gas field water tank 104 in real time, so that the pressure of the pressure supplementing gas entering the gas field water tank 104 is kept stable, and the gas field water tank working system 1 is in a normal working state.
As shown in fig. 1, the gas field water tank working system further includes a pressure relief valve 110 and a safety valve 111, a control port of the pressure relief valve 110 is communicated with a gas inlet of the pressure relief valve 110, a gas inlet of the pressure relief valve 110 is communicated with the gas field water tank 104, a control port of the safety valve 111 is communicated with a gas inlet of the safety valve 111, a gas inlet of the safety valve 111 is communicated with the gas field water tank 104, and a threshold pressure of the safety valve 111 is higher than a threshold pressure of the pressure relief valve 110.
The pressure release valve 110 in the gas field water tank work system can release part of gas when the pressure in the gas field water tank 104 exceeds the threshold pressure of the pressure release valve 110, so as to ensure that the pressure in the gas field water tank 104 is kept within a normal range, and the pressure release valve 111 can further release the pressure in the gas field water tank 104 when the pressure in the gas field water tank 104 is too high and the speed of the gas released by the pressure release valve 110 cannot keep up with the rising speed of the pressure in the gas field water tank 104. The gas field water tank 104 is prevented from being damaged by overpressure during operation, and the safety of the gas field water tank during operation can be ensured.
The threshold pressure of the relief valve 110 and the relief valve 111 is a pressure at the air inlet at the moment when the relief valve 110 and the relief valve 111 are opened.
As shown in fig. 1, the gas field water tank work system may further include a rupture disk safety device 112, the rupture disk safety device 112 being mounted on the gas field water tank 104. The rupture disk safety device 112 may be configured to release the pressure in the gas field water tank 104 when the pressure in the gas field water tank 104 reaches the limit of the safety pressure of the gas field water tank 104, thereby preventing damage to the gas field water tank 104.
Optionally, the gas field water tank operation system may further comprise an alarm 113, the alarm 113 being adapted to issue an alarm signal when the pressure in the gas field water tank 104 exceeds a threshold pressure of the safety valve 111.
The alarm 113 can notify the operator in time when the pressure in the gas field water tank 104 exceeds the standard, so as to control and process the working condition of the gas field water tank 104.
As shown in fig. 1, the gas field water tank working system may further include a controller 114, and the controller 114 is configured to control the working states of the first stop valve 107, the second stop valve 108 and the alarm 113 in the gas field water tank working system 1. The controller 114 may increase the degree of automation of the gas field water tank work system.
To facilitate understanding of the present disclosure, an implementation of the present disclosure may be described herein, in which the pressure compensating gas is nitrogen, the pressure of the nitrogen in the non-oxygen gas source 101 is 6MPa, the nitrogen passes through the first cut-off valve 107, is reduced to 0.2MPa by the first reducing valve, and passes through the second reducing valve 103, and the pressure is further reduced to 50 kPa. The pressure-compensated gas with the pressure of 50kPa enters the gas field water tank 104 from the check valve 106 and the second stop valve 108. When the pressure in the gas field water tank rises to 80kPa due to the reception of the gas field water, the pressure relief valve 110 automatically opens, and the pressure in the gas field water tank 104 falls and stabilizes below 80 kPa. If the pressure in the gas field water tank 104 rises to 120kPa due to failure of the pressure relief valve 110, the pressure relief valve 111 automatically opens to ensure that the gas field water tank is not over-pressurized.
In another implementation provided by the present disclosure, the gas field water tank may be repressurized using natural gas as the repressurization gas.
As shown in FIG. 1, the natural gas pressure in the non-oxygen gas source 101 is 9MPa, and after passing through the first stop valve 107, the natural gas pressure is reduced to 0.3MPa by the first pressure reducing valve, and then further reduced to 80kPa by the second pressure reducing valve 103. The pressure-compensated gas with the pressure of 80kPa enters the gas field water tank 104 from the check valve 106 and the second stop valve 108. When the pressure in the gas field water tank rises to 120kPa due to the reception of the gas field water, the pressure relief valve 110 automatically opens, and the pressure in the gas field water tank 104 falls and stabilizes below 120 kPa. If the pressure in the gas field water tank 104 rises to 160kPa due to failure of the pressure relief valve 110, the pressure relief valve 111 automatically opens to ensure that the gas field water tank is not over-pressurized.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (10)
1. The gas field water tank working system is characterized by comprising a non-oxygen gas source (101), a first pressure reducing valve (102), a second pressure reducing valve (103) and a gas field water tank (104), wherein the non-oxygen gas source (101) is communicated with a gas inlet of the first pressure reducing valve (102), a control port of the first pressure reducing valve (102) is communicated with a gas outlet of the first pressure reducing valve (102), a gas outlet of the first pressure reducing valve (102) is communicated with a gas inlet of the second pressure reducing valve (103), a control port of the second pressure reducing valve (103) is communicated with a gas outlet of the second pressure reducing valve (103), a gas outlet of the second pressure reducing valve (103) is communicated with the gas field water tank (104),
the output pressure of the second pressure reducing valve (103) is lower than the output pressure of the first pressure reducing valve (102).
2. The gas field pitcher operating system of claim 1, wherein the non-oxygen gas source (101) is for providing at least one of natural gas and nitrogen.
3. The gas field water tank working system according to claim 1, wherein the difference between the inlet pressure of the first pressure reducing valve (102) and the output pressure of the second pressure reducing valve (103) is 0.4-15 MPa.
4. The gas field water tank working system according to any one of claims 1 to 3, further comprising a needle valve (105), wherein an air inlet of the needle valve (105) is communicated with the non-oxygen gas source (101), and an air outlet of the needle valve (105) is communicated with an air inlet of the first pressure reducing valve (102).
5. The gas field water tank working system according to claim 4, further comprising a check valve (106), an air inlet of the check valve (106) being in communication with an air outlet of the second pressure reducing valve (103), an air outlet of the check valve (106) being in communication with the gas field water tank (104).
6. The gas field water tank working system according to claim 5, further comprising a first shut-off valve (107), an inlet of the first shut-off valve (107) being in communication with an outlet of the check valve (106), an outlet of the first shut-off valve (107) being in communication with the gas field water tank (104).
7. The gas field water tank working system according to claim 6, further comprising a second stop valve (108), wherein an air inlet of the second stop valve (108) is in communication with the non-oxygen gas source (101), and an air outlet of the second stop valve (108) is in communication with the needle valve (105).
8. The gas field water tank working system according to claim 7, further comprising a pressure gauge (109), the pressure gauge (109) being arranged between the second shut-off valve (108) and the gas field water tank (104).
9. The gas field water tank working system according to any one of claims 1 to 3, further comprising a pressure relief valve (110) and a safety valve (111), wherein a control port of the pressure relief valve (110) is communicated with an air inlet of the pressure relief valve (110), an air inlet of the pressure relief valve (110) is communicated with the gas field water tank (104), a control port of the safety valve (111) is communicated with an air inlet of the safety valve (111), an air inlet of the safety valve (111) is communicated with the gas field water tank (104), and an output pressure of the safety valve (111) is higher than an output pressure of the pressure relief valve (110).
10. The gas field water tank working system according to claim 9, further comprising an alarm (113), said alarm (113) being adapted to issue an alarm signal when the pressure inside the gas field water tank (104) exceeds the output pressure of the safety valve (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911294863.3A CN112978837A (en) | 2019-12-16 | 2019-12-16 | Gas field water tank work system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911294863.3A CN112978837A (en) | 2019-12-16 | 2019-12-16 | Gas field water tank work system |
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| CN112978837A true CN112978837A (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911294863.3A Pending CN112978837A (en) | 2019-12-16 | 2019-12-16 | Gas field water tank work system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005336224A (en) * | 2004-05-24 | 2005-12-08 | Toyo Eng Corp | Opening and closing device and opening and closing method for hot gas piping |
| CN202302714U (en) * | 2011-10-26 | 2012-07-04 | 中国石油化工股份有限公司 | Automatic pressure relief device of low pressure tank |
| CN206361413U (en) * | 2017-03-17 | 2017-07-28 | 泸溪县金源粉体材料有限责任公司 | A kind of air pressure balance tank automatic air replenishing system |
| CN106989274A (en) * | 2017-03-17 | 2017-07-28 | 泸溪县金源粉体材料有限责任公司 | A kind of air pressure balance tank automatic air replenishing system |
| CN207018716U (en) * | 2016-08-06 | 2018-02-16 | 虔东稀土集团股份有限公司 | A kind of decompressor |
-
2019
- 2019-12-16 CN CN201911294863.3A patent/CN112978837A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005336224A (en) * | 2004-05-24 | 2005-12-08 | Toyo Eng Corp | Opening and closing device and opening and closing method for hot gas piping |
| CN202302714U (en) * | 2011-10-26 | 2012-07-04 | 中国石油化工股份有限公司 | Automatic pressure relief device of low pressure tank |
| CN207018716U (en) * | 2016-08-06 | 2018-02-16 | 虔东稀土集团股份有限公司 | A kind of decompressor |
| CN206361413U (en) * | 2017-03-17 | 2017-07-28 | 泸溪县金源粉体材料有限责任公司 | A kind of air pressure balance tank automatic air replenishing system |
| CN106989274A (en) * | 2017-03-17 | 2017-07-28 | 泸溪县金源粉体材料有限责任公司 | A kind of air pressure balance tank automatic air replenishing system |
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Application publication date: 20210618 |