CN203259300U - Pressure-decreasing type sensor - Google Patents
Pressure-decreasing type sensor Download PDFInfo
- Publication number
- CN203259300U CN203259300U CN 201320290585 CN201320290585U CN203259300U CN 203259300 U CN203259300 U CN 203259300U CN 201320290585 CN201320290585 CN 201320290585 CN 201320290585 U CN201320290585 U CN 201320290585U CN 203259300 U CN203259300 U CN 203259300U
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- Prior art keywords
- pressure
- decreasing
- sensor
- type sensor
- decompression
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Abstract
The utility model relates to a sensor, in particular to a pressure-decreasing type sensor. The pressure-decreasing type sensor is composed of a sensor casing, a connecting nut, a sealing cover, a four-way joint and a pressure-decreasing piston rod; the connecting nut is movably sleeved on the sensor casing; a screw thread at the top of the sensor casing is provided with the sealing cover; a through hole is formed inside the sensor casing; the pressure-decreasing piston rod is movably mounted inside the through hole; the sealing cover is provided with the four-way joint; and the four-way joint is communicated with the through hole. According to the pressure-decreasing type sensor of the utility model, the area of the bottom of the pressure-decreasing piston rod is 1/4 of the area of the top of the pressure-decreasing piston rod, and therefore, in operation, stress on hydraulic oil, which is formed by the pressure-decreasing piston rod, is only 1/4 of the stress born by the pressure-decreasing piston rod, as a result, a serious threat to the life safety of workers posed by a possibility of the blasting of a communicating pipe which is caused by a situation in which the pressure of liquid inside a high-pressure pipe manifold is close to or even exceeds a limit value can be eliminated, and therefore, the pressure-decreasing type sensor has positive popularization significance to the guarantee of smooth production and safety production.
Description
Technical field
The utility model relates to a kind of sensor, is specifically related to a kind of decompression type sensor.
Background technology
At oil drilling and production field, be used on the mud liquid high pressure manifold usually all by sensor and communicating pipe tensimeter being installed, with the fluid pressure of monitoring high pressure pipe joint, purpose is carrying out smoothly and production safety of guaranteeing to produce.The manometric detected value of plain edition is up to the about 105MPa of 15000PSI(at present), and the plain edition sensor is to reach by the barrier film compressive deformation force value is passed to the purpose that tensimeter shows, the transmission ratio of its pressure is 1 ︰ 1, industry regulation according to petroleum institute, when pressure is 6090PSI(42MPa) be low pressure when following, personnel are injured not quite, when pressure is 6090PSI(42MPa) be high pressure when above, personal safety is had certain threat.Therefore, in case the fluid pressure in the high pressure pipe joint reaches 6090PSI(42MPa) more than, or approach even when surpassing the ultimate value of 15000PSI, very likely because communicating pipe is aging or sharp objects scratches the communicating pipe explosion that causes between sensor and the tensimeter, serious threat is to staff's life security.
Summary of the invention
The purpose of this utility model is: provide a kind of simple in structure, can the fluid pressure of high pressure pipe joint be reduced pressure, to prevent the decompression type sensor of communicating pipe explosion.
The technical solution of the utility model is:
A kind of decompression type sensor, it is made of sensor housing, attaching nut, gland bonnet, four-way connection and decompression piston bar, it is characterized in that: be movably installed with the attaching nut on the sensor housing, be provided with the edge of a wing on the sensor housing bottom circumference of attaching nut below, the sensor housing screw top of attaching nut top is equipped with gland bonnet, be provided with step-like through hole in the sensor housing, be movably installed with the decompression piston bar in the through hole, on the described gland bonnet four-way connection is installed, four-way connection is communicated with through hole.
Described decompression piston bar is T word shape, and being up and down on the decompression piston bar, the interval shape is provided with O-ring seal.
The bottom area of described decompression piston bar is 1/4th of topside area.
The both sides of described four-way connection are respectively arranged with pump nozzle and connecting pipe joint, and the top of four-way connection is provided with exhaust nozzle.
The beneficial effects of the utility model are:
This decompression type sensor is because the bottom area of decompression piston bar is 1/4th of topside area, therefore at work, the force value that decompression piston pole pair hydraulic oil forms only has 1/4th of decompression piston bar pressure, thereby avoided the fluid transport pressure in the high pressure pipe joint to reach 6090PSI(42MPa) more than, or approach even when surpassing the ultimate value of 15000PSI, very likely because communicating pipe is aging or sharp objects scratches the communicating pipe explosion that causes between sensor and the tensimeter, serious threat is to the problem of staff's life security.This decompression type sensor construction is simple, modern design, to guarantee to produce carry out smoothly and keep the safety in production have positive dissemination.
Description of drawings
Fig. 1 is sectional structure synoptic diagram of the present utility model.
Among the figure: 1, sensor housing, 2, the attaching nut, 3, gland bonnet, 4, four-way connection, 5, the decompression piston bar, 6, the edge of a wing, 7, hydraulic fluid chamber, 8, O-ring seal, 9, pump nozzle, 10, connecting pipe joint, 11, exhaust nozzle.
Embodiment
This decompression type sensor is made of sensor housing 1, attaching nut 2, gland bonnet 3, four-way connection 4 and decompression piston bar 5.Be movably installed with attaching nut 2 on the sensor housing 1, be provided with the edge of a wing 6 on the sensor housing 1 bottom circumference of attaching nut 2 belows, its objective is to prevent that attaching nut 2 from coming off from sensor housing 1, and being connected of convenient and transmission pipeline.Sensor housing 1 screw top of attaching nut 2 tops is equipped with gland bonnet 3.
Be provided with step-like through hole in the sensor housing 1, four-way connection 4 is installed on the gland bonnet 3, the both sides of four-way connection 4 are respectively arranged with pump nozzle 9 and connecting pipe joint 10, the injection that is respectively applied to hydraulic oil with being connected of tensimeter communicating pipe; The top of four-way connection 4 is provided with exhaust nozzle 11; Four-way connection 4 is communicated with through hole.
Be movably installed with decompression piston bar 5 in the through hole, decompression piston bar 5 tops are provided with because decompression piston bar 5 is installed formed airtight hydraulic fluid chamber 7.Decompression piston bar 5 is T word shape, and being up and down on the decompression piston bar 5, the interval shape is provided with O-ring seal 8.The bottom area of decompression piston bar 5 is 1/4th of topside area.
This decompression type sensor is fixedly mounted on the high pressure pipe joint by attaching nut 2 when work, in the course of work, fluid pressure in the high pressure pipe joint is passed to decompression piston bar 5 by decompression piston bar 5 bottoms, because the bottom area of decompression piston bar 5 is 1/4th of decompression piston bar 5 topside areas, as: decompression piston bar 5 bottoms are subject to 20000PSI pressure, by formula P(pressure)=the F(area)/S(power, piston rod is stressed) can draw decompression piston bar 5 tops and only have 5000PSI pressure, thereby the pressure that the hydraulic oil in 5 pairs of hydraulic fluid chambers of decompression piston bar 7 is produced only has 1/4th of decompression piston bar 5 pressures, has reached the effect of decompression.And then the fluid pressure that has solved in the high pressure pipe joint reaches 6090PSI(42MPa) more than, or approach even when surpassing the ultimate value of 15000PSI, very likely because communicating pipe is aging or sharp objects scratches the communicating pipe explosion that causes between sensor and the tensimeter, serious threat is to the problem of staff's life security.This decompression type sensor construction is simple, modern design, to guarantee to produce carry out smoothly and keep the safety in production have positive dissemination.
Claims (4)
1. decompression type sensor, it is by sensor housing (1), attaching nut (2), gland bonnet (3), four-way connection (4) and decompression piston bar (5) consist of, it is characterized in that: be movably installed with attaching nut (2) on the sensor housing (1), be provided with the edge of a wing (6) on sensor housing (1) the bottom circumference of attaching nut (2) below, sensor housing (1) screw top of attaching nut (2) top is equipped with gland bonnet (3), sensor housing is provided with step-like through hole in (1), be movably installed with decompression piston bar (5) in the through hole, four-way connection (4) is installed on the described gland bonnet (3), and four-way connection (4) is communicated with through hole.
2. a kind of decompression type sensor according to claim 1, it is characterized in that: described decompression piston bar (5) is T word shape, and being up and down on the decompression piston bar (5), the interval shape is provided with O-ring seal (8).
3. a kind of decompression type sensor according to claim 1, it is characterized in that: the bottom area of described decompression piston bar (5) is 1/4th of topside area.
4. a kind of decompression type sensor according to claim 1, it is characterized in that: the both sides of described four-way connection (4) are respectively arranged with pump nozzle (9) and connecting pipe joint (10), and the top of four-way connection (4) is provided with exhaust nozzle (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320290585 CN203259300U (en) | 2013-05-26 | 2013-05-26 | Pressure-decreasing type sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320290585 CN203259300U (en) | 2013-05-26 | 2013-05-26 | Pressure-decreasing type sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203259300U true CN203259300U (en) | 2013-10-30 |
Family
ID=49471853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320290585 Expired - Fee Related CN203259300U (en) | 2013-05-26 | 2013-05-26 | Pressure-decreasing type sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203259300U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557983A (en) * | 2013-11-15 | 2014-02-05 | 安阳市荣诚石油矿山机械有限公司 | Piston type pressure sensor |
| CN105352650A (en) * | 2015-11-27 | 2016-02-24 | 上海立格仪表有限公司 | Piston induction amplifiable type Hart bus measuring instrument |
| CN108489659A (en) * | 2018-04-15 | 2018-09-04 | 无锡盛赛传感科技有限公司 | A kind of extra-high tension pressure sensor |
-
2013
- 2013-05-26 CN CN 201320290585 patent/CN203259300U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557983A (en) * | 2013-11-15 | 2014-02-05 | 安阳市荣诚石油矿山机械有限公司 | Piston type pressure sensor |
| CN105352650A (en) * | 2015-11-27 | 2016-02-24 | 上海立格仪表有限公司 | Piston induction amplifiable type Hart bus measuring instrument |
| CN108489659A (en) * | 2018-04-15 | 2018-09-04 | 无锡盛赛传感科技有限公司 | A kind of extra-high tension pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20160526 |