CN210978964U - Oil product replacement system for blocking under pressure - Google Patents
Oil product replacement system for blocking under pressure Download PDFInfo
- Publication number
- CN210978964U CN210978964U CN201921964018.8U CN201921964018U CN210978964U CN 210978964 U CN210978964 U CN 210978964U CN 201921964018 U CN201921964018 U CN 201921964018U CN 210978964 U CN210978964 U CN 210978964U
- Authority
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- China
- Prior art keywords
- needle valve
- pipeline
- header
- trompil
- valve
- 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.)
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 42
- 229910052757 nitrogen Inorganic materials 0.000 claims description 17
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 7
- 238000010079 rubber tapping Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 10
- 238000011084 recovery Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- Pipeline Systems (AREA)
Abstract
The utility model provides a pressure shutoff oil replacement system, including the trompil header, the trompil header passes through nitrogen gas balance pipeline and connects the nitrogen cylinder, installs first needle valve, second needle valve, check valve, third needle valve on nitrogen gas balance pipeline in proper order, be provided with first digital display manometer on the pipeline between check valve and the third needle valve, install trompil header oil pressure detection pipeline between first needle valve and the second needle valve, trompil header oil pressure detection pipeline includes fourth needle valve and fifth needle valve, the digital display manometer of second is connected to the fourth needle valve, trompil header oil pressure detection pipeline is inserted to fifth needle valve one end, and the other end and air intercommunication. The utility model discloses an oil replacement system application can be with the original medium "zero leakage" of pipeline in the construction, zero pollution "," retrieve entirely "in order to realize environmental protection, safe, convenient target in the area shutoff construction operation.
Description
Technical Field
The utility model relates to an oil pipeline presses shutoff field, specifically is a pressure shutoff oil article replacement system.
Background
At present, the pressure balance materials of the header at home and abroad are pipeline running media. The method has the disadvantages that after the plugging construction is finished, the inside of the plugging header and the inside of the plugging construction pipeline are both provided with the original medium for pipeline operation, so that the problems of difficult recovery of the original medium, environmental pollution and the like are caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pressure shutoff oil article replacement system makes the inside original medium of pipeline through nitrogen gas replacement to construction pipeline low reaches back, implements the shutoff construction to pipeline low reaches again through the pressure differential of pressing in the nitrogen gas steel bottle and the construction pipeline.
The technical scheme of the utility model:
the utility model provides a pressure shutoff oil replacement system, includes the trompil header, and the trompil header passes through nitrogen gas balance piping connection nitrogen cylinder, installs first needle valve, second needle valve, check valve, third needle valve on nitrogen gas balance piping in proper order, be provided with first digital display manometer on the pipeline between check valve and the third needle valve, install trompil header oil pressure between first needle valve and the second needle valve and detect the pipeline, trompil header oil pressure detects the pipeline and includes fourth needle valve and fifth needle valve, the digital display manometer of second is connected to the fourth needle valve, trompil header oil pressure detection pipeline is inserted to fifth needle valve one end, and the other end communicates with the air.
The oil pressure detection pipeline of the tapping header adopts a three-way pipeline, one port of the three-way pipeline is connected to a nitrogen balance pipeline between the first needle valve and the second needle valve, and the other two ports are respectively connected with the fourth needle valve and the fifth needle valve.
And the second digital display pressure gauge is arranged at the closed end of the oil pressure detection pipeline of the open pore header.
The first needle valve, the second needle valve, the third needle valve, the fourth needle valve and the fifth needle valve adopt ZG1/2 type needle valves.
Compared with the prior art, the beneficial effects of the utility model are that: the oil product replacement system is applied to the construction operation of blocking under pressure, after the upstream of the pipeline is blocked, the original medium in the pipeline is replaced to the downstream of the construction pipeline through nitrogen by the pressure difference between the internal pressure of the nitrogen steel cylinder and the internal pressure of the construction pipeline, and then the downstream of the pipeline is blocked. The system can realize the purposes of environmental protection, safety and convenience by 'zero leakage', 'zero pollution' and 'full recovery' of the original medium of the pipeline in construction.
Drawings
Fig. 1 is an overall schematic view of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
the utility model provides a pressure shutoff oil replacement system, includes trompil header 1, and trompil header 1 connects nitrogen cylinder 6 through nitrogen gas balance piping, installs first needle valve 2, second needle valve 3, check valve 4, third needle valve 10 on nitrogen gas balance piping in proper order, be provided with first digital display manometer 5 on the pipeline between check valve 4 and the third needle valve 10, install trompil header oil pressure between first needle valve 2 and the second needle valve 3 and detect the pipeline, trompil header oil pressure detects the pipeline and includes fourth needle valve 8 and fifth needle valve 9, second digital display manometer 7 is connected to fourth needle valve 8, trompil header oil pressure detects the pipeline is inserted to fifth needle valve 9 one end, the other end and air intercommunication.
The oil pressure detection pipeline of the tapping header adopts a three-way pipeline, one port of the three-way pipeline is connected to a nitrogen balance pipeline between the first needle valve 2 and the second needle valve 3, and the other two ports are respectively connected with the fourth needle valve 8 and the fifth needle valve 9.
And the second digital display pressure gauge 7 is arranged at the closed end of the oil pressure detection pipeline of the open pore header.
The first needle valve 2, the second needle valve 3, the third needle valve 10, the fourth needle valve 8 and the fifth needle valve 9 adopt ZG1/2 type needle valves.
When oil product replacement is carried out, in order to reach a pressure balance state, the operation is carried out according to the following process steps:
1. connecting the pipe fittings according to a schematic diagram of material oil product replacement;
2. and detecting the oil pressure in the perforated header. All valves on the nitrogen balance system pipeline are closed firstly, then the first needle valve 2 and the fourth needle valve 8 are opened in sequence, and the pressure value displayed by the second digital display pressure gauge 7 is the oil pressure value in the tapping header. Closing the first needle valve 2 and the fourth needle valve 8 after recording the oil pressure;
3. and opening the pressure regulating gauge at the outlet of the nitrogen cylinder 6 and the third needle valve 10, and keeping other valves in a closed state. Adjusting a pressure adjusting valve of the nitrogen cylinder, observing the numerical value of a first digital display pressure gauge 5, keeping the output pressure of the nitrogen cylinder when the displayed pressure is 0.2MPa higher than the previously measured oil pressure, and sequentially opening a check valve 4, a second needle valve 3 and a first needle valve 2;
4. after nitrogen in the nitrogen cylinder enters the opening header, the pressure value of the first digital display pressure gauge 5 is observed, and the third needle valve 10 and the check valve 4 are closed after the displayed pressure value is the same as the previously measured pressure of the header medium.
5. And observing a pressure display value of the first digital display pressure gauge 5, and closing the third needle valve 10 and the first needle valve 2 in sequence until the pressure display value on the pressure gauge is the same as the pressure in the pipeline. At the moment, the pressure of the nitrogen in the tapping header and the pressure of the medium in the pipeline are balanced, and the gate valve is closed;
6. opening a fourth needle valve 8 and a fifth needle valve 9, exhausting nitrogen in the connecting pipeline, observing the numerical value of the digital display pressure gauge 7, and when the numerical value is zero, exhausting the medium in the pipeline;
7. and opening the needle valve 2, evacuating the nitrogen in the perforated header, observing the value of the second digital pressure gauge 7, and evacuating the medium in the perforated header when the value is zero.
Characteristic of pressurized plugging oil replacement system
1) External power equipment is not needed, and energy is saved;
2) the original medium in the construction pipeline is safely and reliably replaced, and the characteristics of zero leakage, zero pollution, full recovery and the like are realized so as to achieve the aims of environmental protection, safety and convenience;
3) the safety and stability are high, the service life is long, and no pollution is caused;
4) the installation is simple, can improve the work efficiency.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a blocking oil product replacement system is pressed in area, its characterized in that, including trompil header (1), nitrogen cylinder (6) is connected through nitrogen gas balance pipeline in trompil header (1), installs first needle valve (2), second needle valve (3), check valve (4), third needle valve (10) on nitrogen gas balance pipeline in proper order, be provided with first digital display manometer (5) on the pipeline between check valve (4) and third needle valve (10), install trompil header oil pressure between first needle valve (2) and second needle valve (3) and detect the pipeline, trompil header oil pressure detects the pipeline and includes fourth needle valve (8) and fifth needle valve (9), second digital display manometer (7) are connected in fourth needle valve (8), trompil header oil pressure detects the pipeline is inserted to fifth needle valve (9) one end, the other end and air intercommunication.
2. The system according to claim 1, wherein the tapping header oil pressure detection pipeline is a tee pipeline, one port of the tee pipeline is connected to a nitrogen balance pipeline between the first needle valve (2) and the second needle valve (3), and the other two ports are respectively connected with the fourth needle valve (8) and the fifth needle valve (9).
3. The system according to claim 1, wherein the second digital pressure gauge (7) is installed at the closed end of the oil pressure detection line of the open-hole header.
4. The pressurized block oil replacement system according to claim 1, wherein the first needle valve (2), the second needle valve (3), the third needle valve (10), the fourth needle valve (8) and the fifth needle valve (9) are ZG1/2 type needle valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921964018.8U CN210978964U (en) | 2019-11-13 | 2019-11-13 | Oil product replacement system for blocking under pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921964018.8U CN210978964U (en) | 2019-11-13 | 2019-11-13 | Oil product replacement system for blocking under pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210978964U true CN210978964U (en) | 2020-07-10 |
Family
ID=71459827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921964018.8U Active CN210978964U (en) | 2019-11-13 | 2019-11-13 | Oil product replacement system for blocking under pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210978964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117383098A (en) * | 2023-09-27 | 2024-01-12 | 广西电网有限责任公司南宁供电局 | Transformer oil drum nitrogen injection and pressure maintaining monitoring device |
-
2019
- 2019-11-13 CN CN201921964018.8U patent/CN210978964U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117383098A (en) * | 2023-09-27 | 2024-01-12 | 广西电网有限责任公司南宁供电局 | Transformer oil drum nitrogen injection and pressure maintaining monitoring device |
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