CN208833428U - Pressure acquisition system - Google Patents
Pressure acquisition system Download PDFInfo
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- CN208833428U CN208833428U CN201821440116.7U CN201821440116U CN208833428U CN 208833428 U CN208833428 U CN 208833428U CN 201821440116 U CN201821440116 U CN 201821440116U CN 208833428 U CN208833428 U CN 208833428U
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- pressure
- grease chamber
- valve
- piston
- spool
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Abstract
The utility model provides a kind of pressure acquisition system, belongs to pressure acquisition field.Pressure acquisition device and transmission medium are kept apart by oil body and piston in pressure acquisition system provided by the utility model, pressure acquisition device is without directly contacting transmission medium, but pressure is acquired by way of indirect impulse, guarantee pressure controllable, avoids the high pressure injury that transmission medium during pressure acquisition can cause.Also, once pressure discharges suddenly, and piston can move upwards, and moment blocks the impulse mouth of pressure acquisition device, the leakage of transmission medium be avoided, the problems such as so as to avoid security risk, environmental pollution and energy waste.And, since oil body freezing point is low, it is also not easy to solidify in winter, it can be avoided the hidden danger for causing frozen block at pressure tappings due to oil gas solidification, also the phenomenon of pressure data acquisition mistake caused by avoiding due to frozen block, the accuracy for improving the pressure data of acquisition, maintains easily, and has saved the freezing expense needed replacing of instrument.
Description
Technical field
The utility model relates to pressure acquisition field, in particular to a kind of pressure acquisition system.
Background technique
In the exploitation of oil gas field, pressure is a kind of especially important manufacturing parameter, needs to acquire oil gas in transfer line
Pressure, so as to according to the pressure of acquisition carry out exploration and development, scientific research test etc. work.
Currently, an aperture can be opened up on transfer line, a steel pipe is welded in the aperture, which adopts with pressure
The pressure tappings of acquisition means are connected to.During acquiring pressure, the oil gas in transfer line can pass through the aperture on transfer line
Steel pipe is flowed into, then pressure tappings are flowed by steel pipe, so that pressure tappings touch oil gas, so that pressure acquisition device be enabled to collect oil
The pressure of gas.
There are the uncontrollable hidden danger of pressure for this pressure acquisition mode, once during pressure acquisition, pressure discharges suddenly,
Oil gas will be leaked by the pressure tappings on steel pipe, and the leakage of oil gas can cause security risk, and cause environmental pollution.
Summary of the invention
The utility model embodiment provides a kind of pressure acquisition system, is able to solve pressure acquisition process in the related technology
In the technical problems such as security risk, oil and gas leakage and frozen block, the system comprises pressure acquisition device, grease chamber pressure cap, sockets
In in the grease chamber pressure cap grease chamber, the transfer line that is fixedly connected with the grease chamber and from the lower section of the transfer line it is deep
Enter to the valve mechanism in the transfer line；
The grease chamber pressure cap offers through-hole, and the lower end of the pressure acquisition device is provided with pressure tappings, the through-hole and
The shape and size of the pressure tappings match, the socket pressure tappings in the through-hole；
The lower end setting of the grease chamber is fluted, and piston is housed in the groove, the lower surface of the grease chamber pressure cap, described
The upper surface of piston, the grease chamber inner wall form confined space, for filling with oil body, the piston is used for the confined space
Variation based on pressure moves up and down in the grease chamber；
The valve mechanism includes spool, valve body, valve rod, valve rod pressure cap, the shape and size of the spool and the biography
The shape and size of the valve opening opened up on defeated pipeline match, the power that the spool can apply according to the valve rod, described
It is moved in and out in transfer line；The valve rod is arranged on the valve body, and the valve rod is socketed in the valve rod pressure cap.
In a kind of possible realization, the oil body include hydraulic oil, in silicone oil at least one of.
In a kind of possible realization, the top diameter of the piston is equal with the inner diameter of the grease chamber.
In a kind of possible realization, the through-hole and the valve opening are passed through in the central axes of the piston.
In a kind of possible realization, the piston is used in the pressure reduction, the groove is left, by upward
After movement, the pressure tappings are blocked.
In a kind of possible realization, the spool is taper valve core.
In a kind of possible realization, the valve opening is and the matched taper valve opening of the spool.
In a kind of possible realization, the pressure tappings are provided with external screw thread, and the through-hole on the grease chamber pressure cap is provided with
Internal screw thread, the external screw thread match with the internal screw thread.
It is described when the spool moves into the transfer line and contacts with the valve opening in a kind of possible realization
Valve opening is closed, when the spool is removed from the transfer line, the valve opening conducting.
Technical solution bring beneficial effect provided by the embodiment of the utility model at least may include:
This application provides a kind of pressure acquisition system of pressure of acquisition indirectly, which fills in pressure acquisition
Set and transfer line in transmission medium between, provided with the grease chamber for accommodating oil body and piston, during pressure acquisition,
Oil body and piston can be realized the function of impulse, can by the pressure tappings of the pressure conduction of transmission medium to pressure acquisition device,
Therefore pressure acquisition device can accurately collect the pressure of transmission medium.Also, pressure acquisition device and transmission medium are logical
It crosses oil body and piston is kept apart, pressure acquisition device is not necessarily to directly contact transmission medium, but by way of indirect impulse
Pressure is acquired, guarantees pressure controllable, avoids the high pressure injury that transmission medium during pressure acquisition can cause.Also, pass through
Piston moving up and down is packed into grease chamber, once pressure discharges suddenly, piston can be moved upwards, and moment blocks pressure and adopts
The impulse mouth of acquisition means, avoids transmission medium by pressure tappings and leaks to external environment, since transmission medium usually has easily
The property for firing explosive also avoids security risk, environmental pollution and energy waste by guaranteeing that transmission medium will not leak
The problems such as.Also, because the pressure tappings of pressure acquisition device are not necessarily to directly contact oil gas, but oil body is contacted, since oil body is solidifying
Solid point is low, and in winter or whens other microthermal climates is also not easy to solidify, and can be avoided and causes at pressure tappings since oil gas solidifies
The hidden danger of frozen block, the phenomenon of pressure data acquisition mistake, improves the pressure of acquisition caused by also avoiding due to frozen block
The accuracy of data, maintains easily, and has saved gauge valve and the freezing expense needed replacing of instrument.Also, the pressure is adopted
The structure simple possible of collecting system, is easily installed and operates.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of pressure acquisition system provided by the embodiment of the utility model.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
Fig. 1 is a kind of structural schematic diagram of pressure acquisition system provided by the embodiments of the present application, which includes that pressure is adopted
Acquisition means 1, grease chamber pressure cap 2, grease chamber 3, piston 4, spool 5, valve body 6, valve rod 7, valve rod pressure cap 8, transfer line 9.
(1) pressure acquisition device 1.
Pressure acquisition device 1 can be pressure gauge or pressure sensor for acquiring pressure.Pressure acquisition device 11 can
With with pressure tappings, pressure tappings are also referred to as impulse head, pressure tappings are used to acquire the pressure of transmission medium in transfer line 9.
The oil body and piston 4 passed through in grease chamber 3 in the utility model embodiment, between pressure tappings and transmission medium is isolated,
Oil body and piston 4 can provide the function of impulse for pressure tappings, when flowing transmission medium on transfer line 9, transmission medium
Pressure can be conducted by oil body and piston 4 to the pressure tappings of pressure acquisition device 1, therefore the pressure tappings of pressure acquisition device 1
The pressure of transmission medium can be accurately collected, meanwhile, pressure tappings are not necessarily to without directly contacting transmission medium, but between passing through
The mode for connecing impulse acquires pressure, guarantees pressure controllable, and the height that avoiding transmission medium during pressure acquisition can cause weighs wounded
Evil.
(2) grease chamber pressure cap 2.
Grease chamber pressure cap 2 prevents the oil body in grease chamber 3 from leaking for blocking grease chamber 3.Grease chamber pressure cap 2 can offer through-hole,
The through-hole of grease chamber pressure cap 2 can be by pressure conduction to the pressure tappings of pressure acquisition device 1.
Grease chamber pressure cap 2 can be connected through a screw thread mode with pressure acquisition device 1 and connect, and specifically, grease chamber pressure cap 2 is opened
Equipped with through-hole, the through-hole on grease chamber pressure cap 2 can be set internal screw thread, and pressure tappings can be set external screw thread, external screw thread with it is interior
Screw thread matches, and the pressure tappings are socketed in through-hole.Wherein, the through-hole of grease chamber pressure cap 2 can be with the pressure of pressure acquisition device 1
With one heart, the through-hole diameter of grease chamber pressure cap 2 can be equal with the diameter of the pressure tappings of pressure acquisition device 1, in grease chamber pressure cap 2 for mouth
Axis can be overlapped with the central axes of the pressure tappings of pressure acquisition device 1.Wherein, the through-hole of grease chamber pressure cap 2 can be opened in oil
The center of chamber pressure cap 2.
Grease chamber 3 can be socketed in the grease chamber pressure cap 2, and the internal diameter of grease chamber pressure cap 2 can be equal with the outer diameter of grease chamber 3.Oil
Chamber pressure cap 2 can be connected through a screw thread mode with grease chamber 3 and connect, for example, internal screw thread, grease chamber can be set on grease chamber pressure cap 2
3 can be set external screw thread, and the external screw thread of the internal screw thread and grease chamber 3 of grease chamber pressure cap 2 matches, after grease chamber pressure cap 2 is screwed,
Grease chamber 3 can be blocked.
(3) grease chamber 3.
For grease chamber 3 for accommodating oil body and piston 4, the lower end setting of grease chamber 3 is fluted, and piston 4 is housed in groove.Grease chamber 3
It can be tubular, the top of grease chamber 3 is closed by grease chamber pressure cap 2, and the top of grease chamber 3 is closed by piston 4.Grease chamber 3, which can be located at, to be passed
On defeated pipeline 9.The lower surface of grease chamber pressure cap 2, the upper surface of the piston 4, the grease chamber 3 inner wall formed confined space, this is closed
Space avoids oil body from leaking from grease chamber 3 for filling with oil body.
The oil body of grease chamber 3 is used for conducting pressure, which can have incompressible performance, and the freezing point of the oil body can
With lower.
Optionally, the oil body may include hydraulic oil, in silicone oil at least one of, the price of hydraulic oil and silicone oil is lower,
The cost that pressure acquisition system can be saved guarantees that the practicability of pressure acquisition system is good, and hydraulic oil and silicone oil conduction
The property of pressure is preferable, therefore can be avoided loss of the pressure in conductive process, at the same the freezing point of hydraulic oil and silicone oil compared with
Low, in winter or whens other microthermal climates, is also not easy to solidify, and can be avoided the frozen block hidden danger at pressure tappings.
Optionally, grease chamber 3 can be also equipped with pressure sensitive film, and pressure sensitive film can be set on the lower surface of piston 4, pressure-sensitive
The diameter of diaphragm can be equal with pistion recess inner diameter.By being equipped with pressure sensitive film in grease chamber 3, since pressure sensitive film passes
Pilot power it is well-behaved, can guarantee that pressure is conducted without loss to pressure tappings, guarantee the accuracy of pressure acquisition data.
(4) piston 4.
Piston 4 can move up and down in grease chamber 3, and the top diameter of piston 4 can be much larger than pressure tappings, in piston 4
Axis can pass through the valve opening opened up on the through-hole and transfer line 9 opened up on grease chamber pressure cap 2.
Piston 4 is used in pressure reduction, is left groove, after moving upwards, is blocked pressure tappings, so as to avoid
Transmission medium leaks to external environment by pressure tappings, since transmission medium usually has inflammable and explosive fried property, passes through guarantor
Card transmission medium will not leak, and since transmission medium is usually inflammable and explosive fried, once leakage can cause security risk, and cause
Environmental pollution, while energy waste can be led to the problem of, by avoiding the leakage of transmission medium, also avoid security risk,
The problems such as environmental pollution and energy waste.
Optionally, the top of piston 4 can be cylinder, and the top diameter of piston 4 can be with the inner diameter phase of grease chamber 3
Deng.By using the piston 4 of this shape and size, guarantee that the top of piston 4 can coincide with the inner wall of grease chamber 3, once work as
When 1 unexpected pressure release of pressure acquisition device, after piston 4 can be along inner wall upward sliding, moment blocks impulse mouth, without moving
To other positions, transmission medium is avoided to leak by impulse mouth.
Optionally, the bottom of piston 4 can be cylinder, and the base diameter of piston 4 can be with the groove diameter phase of grease chamber 3
Deng.By using the piston 4 of this shape and size, the bottom of piston 4 can coincide with groove, guarantee the position of piston 4 not
Become, piston 4 is avoided to slide in a groove.
(5) valve mechanism.
The medium that valve mechanism is used to control in transfer line 9 flows into being turned on and off for valve opening, and valve mechanism can wrap
Spool 5, valve body 6, valve rod 7, valve rod pressure cap 8 are included, valve mechanism can go deep into from the lower section of transfer line 9 to transfer line 9.
(5.1) spool 5.
Spool 5 is used for the power applied according to valve rod 7, moves in and out in transfer line 9, to control the pass of transfer line 9
It closes or is connected, and then control the flowing of transmission medium in transfer line 9.
Wherein, when spool 5 moves into transfer line 9 and contacts with valve opening, valve opening is closed, when spool 5 is from transfer line
When 9 removal, valve opening conducting, transmission medium can flow into valve opening.
The shape and size of the valve opening opened up in the shape and size and transfer line 9 of spool 5 match, for example, spool 5
For taper valve core 5, valve opening can be and the matched taper valve opening of spool 5.
Optionally, spool 5 can be concentric with valve opening, and spool 5 can be directed at valve opening.For example, if spool 5 is taper valve core
5, the tip of spool 5 can be directed at the center of valve opening.
(5.2) valve rod 7.
Valve rod 7 is used for 5 applied force of spool, so that spool 5 moves up and down, so that moving up and down by spool 5, closes
Or open valve opening.It can have tappet in valve rod 7, valve rod 7 can move down on band movable valve plug 5 by the propulsion up and down of tappet
It is dynamic.
(5.3) valve rod pressure cap 8.
Valve rod pressure cap 8 is socketed with valve rod 7 in the valve rod pressure cap 8, for example, valve for locking valve rod 7 and playing sealing function
Internal screw thread has can be set in bar pressure cap 8, and external screw thread has can be set in valve rod 7, and the internal screw thread of valve rod pressure cap 8 can be with valve rod 7
External screw thread matches.
(5.4) valve body 6.
Valve body 6 is used to be isolated the connection of pressure-inducting device and transfer line 9, and valve body 6 is connect with transfer line 9, for example, valve body
6 can be used welding with transfer line 9 or thread connecting mode is connect, and the size of valve body 6 can be DN50 or DN80, valve rod 7
It can be set on valve body 6.
(6) transfer line 9.
For transfer line 9 for transmitting to transmission medium, which can be oil gas, natural gas or crude oil.
This application provides a kind of pressure acquisition system of pressure of acquisition indirectly, which fills in pressure acquisition
Set and transfer line in transmission medium between, provided with the grease chamber for accommodating oil body and piston, during pressure acquisition,
Oil body and piston can be realized the function of impulse, can by the pressure tappings of the pressure conduction of transmission medium to pressure acquisition device,
Therefore pressure acquisition device can accurately collect the pressure of transmission medium.Also, pressure acquisition device and transmission medium are logical
It crosses oil body and piston is kept apart, pressure acquisition device is not necessarily to directly contact transmission medium, but by way of indirect impulse
Pressure is acquired, guarantees pressure controllable, avoids the high pressure injury that transmission medium during pressure acquisition can cause.Also, pass through
Piston moving up and down is packed into grease chamber, once pressure discharges suddenly, piston can be moved upwards, and moment blocks pressure and adopts
The impulse mouth of acquisition means, avoids transmission medium by pressure tappings and leaks to external environment, since transmission medium usually has easily
The property for firing explosive also avoids security risk, environmental pollution and energy waste by guaranteeing that transmission medium will not leak
The problems such as.Also, because the pressure tappings of pressure acquisition device are not necessarily to directly contact oil gas, but oil body is contacted, since oil body is solidifying
Solid point is low, and in winter or whens other microthermal climates is also not easy to solidify, and can be avoided and causes at pressure tappings since oil gas solidifies
The hidden danger of frozen block, the phenomenon of pressure data acquisition mistake, improves the pressure of acquisition caused by also avoiding due to frozen block
The accuracy of data, maintains easily, and has saved gauge valve and the freezing expense needed replacing of instrument.Also, the pressure is adopted
The structure simple possible of collecting system, is easily installed and operates.
Exemplary description is carried out to the installation process of pressure acquisition system provided by the present application below:
The two sides that valve body 6 is welded or is threadedly connected to transfer line 9, after being connected on transfer line 9, by valve
8 sets of bar pressure cap on valve rod 7, screw valve rod pressure cap 8, open grease chamber pressure cap 2, and piston 4 is packed into 3 bottom of grease chamber, screws grease chamber
Spool 5 is boosted by valve rod 7 and blocks valve opening by pressure cap 2, prevents transmission medium by flowing into grease chamber in transfer line 9
3, hydraulic oil is filled to grease chamber 3, installs pressure acquisition device 1, it is by valve rod 7 that spool 5 is downward when needing to acquire pressure
Mobile, valve opening is opened, and transmission medium flows into valve opening, pressure is just passed to pressure acquisition device 1 by hydraulic oil, when pressure is adopted
When acquisition means 1 break unexpected pressure release by other things, hydraulic oil is released ejection first, and the pressure of grease chamber 3 discharges suddenly, living
Plug 4 moves upwards, and has blocked the pressure tappings of pressure acquisition device 1, has effectively prevented the leakage of the transmission mediums such as oil gas, due to
Hydraulic oil freezing point is low, when also eliminating winter, the hidden danger of 1 frozen block of pressure acquisition device.
All the above alternatives can form the alternative embodiment of the disclosure, herein no longer using any combination
It repeats one by one.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (9)
1. a kind of pressure acquisition system, which is characterized in that the system comprises pressure acquisition device (1), grease chamber pressure cap (2), sets
The grease chamber (3) that is connected in the grease chamber pressure cap (2), the transfer line (9) being fixedly connected with the grease chamber and from the transmission
The lower section of pipeline (9) is deeply to the valve mechanism in the transfer line (9)；
The grease chamber pressure cap (2) offers through-hole, and the lower end of the pressure acquisition device (1) is provided with pressure tappings, the through-hole
Match with the shape and size of the pressure tappings, the socket pressure tappings in the through-hole；
The lower end setting of the grease chamber (3) is fluted, piston (4) is housed in the groove, the following table of the grease chamber pressure cap (2)
Face, the upper surface of the piston (4), the grease chamber (3) inner wall form confined space, the confined space is for filling with oil
Body, the piston (4) are used for the variation based on pressure, move up and down in the grease chamber (3)；
The valve mechanism includes spool (5), valve body (6), valve rod (7), valve rod pressure cap (8), the shape and ruler of the spool (5)
The shape and size of the valve opening opened up on the very little and described transfer line (9) match, and the spool (5) can be according to the valve rod
(7) power applied, moves in and out in the transfer line (9)；The valve rod (7) is arranged on the valve body (6), the valve
Bar (7) is socketed in the valve rod pressure cap (8).
2. system according to claim 1, which is characterized in that the oil body include hydraulic oil, in silicone oil at least one of.
3. system according to claim 1, which is characterized in that the top diameter of the piston (4) and the grease chamber (3)
Inner diameter is equal.
4. system according to claim 1, which is characterized in that the central axes of the piston (4) by the through-hole and
The valve opening.
5. system according to claim 1, which is characterized in that the piston (4) is used in the pressure reduction, leaves
The groove blocks the pressure tappings after moving upwards.
6. system according to claim 1, which is characterized in that the spool (5) is taper valve core.
7. system according to claim 6, which is characterized in that the valve opening be and the spool (5) matched cone valve
Hole.
8. system according to claim 1, which is characterized in that the pressure tappings are provided with external screw thread, the grease chamber pressure cap
(2) through-hole on is provided with internal screw thread, and the external screw thread matches with the internal screw thread.
9. system according to claim 1, which is characterized in that the spool (5) move into the transfer line (9) and with
When the valve opening contacts, valve opening corresponding with spool (5) is closed, when the spool (5) removes from the transfer line (9), institute
State valve opening conducting corresponding with spool (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821440116.7U CN208833428U (en) | 2018-09-03 | 2018-09-03 | Pressure acquisition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821440116.7U CN208833428U (en) | 2018-09-03 | 2018-09-03 | Pressure acquisition system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208833428U true CN208833428U (en) | 2019-05-07 |
Family
ID=66311896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821440116.7U Active CN208833428U (en) | 2018-09-03 | 2018-09-03 | Pressure acquisition system |
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| Country | Link |
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| CN (1) | CN208833428U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956001A (en) * | 2018-09-03 | 2018-12-07 | 中国石油天然气股份有限公司 | Pressure acquisition system |
-
2018
- 2018-09-03 CN CN201821440116.7U patent/CN208833428U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956001A (en) * | 2018-09-03 | 2018-12-07 | 中国石油天然气股份有限公司 | Pressure acquisition system |
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