CN203515401U - Piston type stand pipe pressure transmitter - Google Patents
Piston type stand pipe pressure transmitter Download PDFInfo
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- CN203515401U CN203515401U CN201320620894.5U CN201320620894U CN203515401U CN 203515401 U CN203515401 U CN 203515401U CN 201320620894 U CN201320620894 U CN 201320620894U CN 203515401 U CN203515401 U CN 203515401U
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- pressure transmitter
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Abstract
The utility model relates to a piston type stand pipe pressure transmitter which comprises a cylinder body and a piston. At least two oil holes are formed in the position, adjacent to the upper end, of the side wall of the cylinder body, adapters which are used for being connected with a pressure detecting element outside the cylinder body are mounted in the oil holes, and the piston is connected in an inner cavity in the cylinder body in a sealed and vertical-sliding mode. A hydraulic oil chamber filled with hydraulic oil is formed in the portion, above the piston, of the inner cavity of the cylinder body, and a mud chamber communicated with a peripheral mud stand pipe is formed in the portion, below the piston, of the inner cavity of the cylinder body. According to the piston type stand pipe pressure transmitter, the piston is adopted to replace a rubber cup in the prior art, the piston slides in the cylinder body of the transmitter to transmit the changes of the pressure values of mud, and due to the fact that the piston is more resistant to corrosion than the rubber cup, the transmitter can adapt to worse environment, and is more durable in use, therefore, the daily maintenance frequency and the cost of the equipment can be effectively lowered, and the running cost of the equipment is reduced.
Description
Technical field
The utility model relates to a kind of pressure sensor, relates in particular to a kind of piston type standpipe pressure transmitter.
Background technology
In drilling well field, standpipe pressure is an important parameter in drilling process, standpipe pressure be drilling fluid while flowing in drill string the pressure drop when bit nozzle of loss pressure drop, drilling liquid flow and drilling fluid in the pressure consumption sum of annular space when shaft bottom is returned.As can be seen here, standpipe pressure is relevant with density, viscosity, the shear force of drilling fluid, and these three parameters are larger, and standpipe pressure is higher.
At present, widely used standpipe pressure transmitter is plastic cup-type pressure transmitter; Known plastic cup-type pressure transmitter is mainly comprised of glue cup, hydraulic cylinder and oil circuit joint etc., wherein, in the hydraulic cylinder outside glue cup, be full of hydraulic oil, in glue cup, be connected with the hydraulic cement slurry in standpipe, the pressure of mud expands glue cup, thereby squeezed fluid force feed is with transmission of pressure.Yet, because hydraulic cement slurry has corrosion and pulsation, therefore, be easy to make glue cup to damage, and then cause standpipe pressure transmitter malfunctioning, therefore, need often to safeguard and change glue cup, therefore not only caused the inconvenience of using, but also need to expend a large amount of manpower financial capacities.
In view of the foregoing, need to improve this type of standpipe pressure transmitter at present, to address the above problem.
Utility model content
The problem existing in order to solve above-mentioned prior art, the utility model aims to provide a kind of piston type standpipe pressure transmitter that is suitable for, can be applicable to adverse circumstances simple in structure, under the prerequisite of effect that reaches pressure inverting, overcome existing plastic cup-type transmitter glue cup and easily damage, need often to safeguard the shortcoming of changing.
A kind of piston type standpipe pressure transmitter described in the utility model, it comprises:
One cylinder body, on its sidewall, the position of contiguous upper end is provided with at least two oilholes, and the adapter being connected for the pressure detecting element with described cylinder body outside is installed in this oilhole; And
One hermetically and can slide up and down to be connected to the piston in the inner chamber of described cylinder body;
Wherein, the part that is positioned at described piston top of described inner chamber of cylinder block forms the hydraulic fluid chamber that is filled with hydraulic oil, and the part that is positioned at described piston below of described inner chamber of cylinder block forms the mud chamber being communicated with peripheral mud standpipe.
In above-mentioned piston type standpipe pressure transmitter, between the outer rim of described piston and the inwall of described cylinder body, be provided with a plurality of sealing rings.
In above-mentioned piston type standpipe pressure transmitter, between the outer rim of described piston and the inwall of described cylinder body, the position of contiguous described hydraulic fluid chamber is provided with a described sealing ring, and between the outer rim of described piston and the inwall of described cylinder body, the position in contiguous described mud chamber is provided with two described sealing rings.
In above-mentioned piston type standpipe pressure transmitter, the quantity of described oilhole is two, and described two oilholes are symmetricly set on the sidewall of described cylinder body.
In above-mentioned piston type standpipe pressure transmitter, described pressure detecting element is pressure sensor and standpipe pressure table, a described oilhole is connected with described pressure sensor by a described adapter, and described in another, oilhole is connected with described standpipe pressure table by adapter described in another.
In above-mentioned piston type standpipe pressure transmitter, described pressure sensor is also connected with a display unit.
In above-mentioned piston type standpipe pressure transmitter, described transmitter also comprises in the inner chamber that is arranged on described cylinder body and is positioned at the baffle ring of its lower end.
In above-mentioned piston type standpipe pressure transmitter, described piston is stainless steel piston.
Owing to having adopted above-mentioned technical solution, the utility model is by adopting piston to replace the rubber glue cup of prior art, and change by making piston slide to transmit mud pressure value at the cylinder body of transmitter, because piston is more corrosion-resistant than rubber glue cup, therefore can adapt to worse environment, and more durable, thus regular maintenance number of times and the cost of equipment can effectively be reduced, reduce the running cost of equipment.
Accompanying drawing explanation
Fig. 1 is the internal construction sectional view of cylinder body in a kind of piston type standpipe pressure of the utility model transmitter;
Fig. 2 is the connection diagram of a kind of piston type standpipe pressure of the utility model transmitter.
The specific embodiment
Below in conjunction with accompanying drawing, provide preferred embodiment of the present utility model, and be described in detail.
As shown in Figure 1, 2, the utility model, i.e. a kind of piston type standpipe pressure transmitter, comprising:
One cylinder body 1, on its sidewall, the position of contiguous upper end is provided with at least two oilhole (not shown), and the adapter 2 being connected for the pressure detecting element with cylinder body 1 outside is installed in this oilhole; And
One hermetically and can slide up and down to be connected to the piston 3 in the inner chamber of cylinder body 1, in this present embodiment, and the piston that piston 3 is made for stainless steel;
Wherein, the part that is positioned at piston 3 tops of cylinder body 1 inner chamber forms the hydraulic fluid chamber that is filled with hydraulic oil, form the hydraulic oil side of piston 3, the part that is positioned at piston 3 belows of cylinder body 1 inner chamber forms the mud chamber being communicated with peripheral mud standpipe 14, forms the mud side of piston 3; Between the inwall of the outer rim of piston 3 and cylinder body 1, be provided with a plurality of lattice Lay sealing rings 5, specifically, between the inwall of the outer rim of piston 3 and cylinder body 1, the position of contiguous hydraulic fluid chamber is provided with a lattice Lay sealing ring 5, between the inwall of the outer rim of piston 3 and cylinder body 1, the position in contiguous mud chamber is provided with two lattice Lay sealing rings 5, thereby effectively prevents that mud from entering the gap between piston 3 and cylinder body 1 inwall when assurance is lubricated.
In the present embodiment, the quantity of oilhole is two, and two oilholes are symmetricly set on the sidewall of cylinder body 1, two adapters 2 of an adapter 2(shown in Fig. 1,2 are installed in each oilhole to be separately positioned on the left and right sides wall of cylinder body 1), pressure detecting element is pressure sensor 9 and standpipe pressure table 12, an oilhole is connected with pressure sensor 9 by an adapter 2, this pressure sensor 9 is also connected with display unit 10 by data wire 11, and another oilhole is connected with standpipe pressure table 12 by another adapter 2 and hydraulic line 13.
In the present embodiment, transmitter also comprises in the inner chamber that is arranged on cylinder body 1 and is positioned at the baffle ring 6 of its lower end, to prevent that piston 3 landings from leaving cylinder body 1 inner chamber.
Transmitter of the present utility model is by being provided with union sealing mat 7 in union 5(union end opening 8) be arranged on mud standpipe 14, and its mud chamber is communicated with mud standpipe 14, thereby the mud in standpipe 14 is acted directly on piston 3, the pressure of mud moves up piston 3, and then the hydraulic oil in the hydraulic fluid chamber of extruding cylinder body 1, the wherein pressure of hydraulic oil is changed, thereby by adapter 2, the mud pressure in standpipe 14 is passed to pressure sensor 9, then pressure sensor 9 is transformed into the signal of telecommunication by pressure signal, by data wire 11, pass to display unit 10 and show digital pressure value, by hydraulic line 13, pressure signal transmission is passed through to its pointer indicated pressure value to standpipe pressure table 12 simultaneously.
Above-described, be only preferred embodiment of the present utility model, not in order to limit scope of the present utility model, above-described embodiment of the present utility model can also make a variety of changes.Be that simple, the equivalence that every claims according to the utility model application and description are done changes and modify, all fall into the claim protection domain of the utility model patent.The utility model not detailed description be routine techniques content.
Claims (8)
1. a piston type standpipe pressure transmitter, is characterized in that, described transmitter comprises:
One cylinder body, on its sidewall, the position of contiguous upper end is provided with at least two oilholes, and the adapter being connected for the pressure detecting element with described cylinder body outside is installed in this oilhole; And
One hermetically and can slide up and down to be connected to the piston in the inner chamber of described cylinder body;
Wherein, the part that is positioned at described piston top of described inner chamber of cylinder block forms the hydraulic fluid chamber that is filled with hydraulic oil, and the part that is positioned at described piston below of described inner chamber of cylinder block forms the mud chamber being communicated with peripheral mud standpipe.
2. piston type standpipe pressure transmitter according to claim 1, is characterized in that, between the outer rim of described piston and the inwall of described cylinder body, is provided with a plurality of sealing rings.
3. piston type standpipe pressure transmitter according to claim 2, it is characterized in that, between the outer rim of described piston and the inwall of described cylinder body, the position of contiguous described hydraulic fluid chamber is provided with a described sealing ring, and between the outer rim of described piston and the inwall of described cylinder body, the position in contiguous described mud chamber is provided with two described sealing rings.
4. according to the piston type standpipe pressure transmitter described in claim 1,2 or 3, it is characterized in that, the quantity of described oilhole is two, and described two oilholes are symmetricly set on the sidewall of described cylinder body.
5. piston type standpipe pressure transmitter according to claim 4, it is characterized in that, described pressure detecting element is pressure sensor and standpipe pressure table, a described oilhole is connected with described pressure sensor by a described adapter, and described in another, oilhole is connected with described standpipe pressure table by adapter described in another.
6. piston type standpipe pressure transmitter according to claim 5, is characterized in that, described pressure sensor is also connected with a display unit.
7. according to the piston type standpipe pressure transmitter described in any one in claim 1-3,5,6, it is characterized in that, described transmitter also comprises in the inner chamber that is arranged on described cylinder body and is positioned at the baffle ring of its lower end.
8. according to the piston type standpipe pressure transmitter described in any one in claim 1-3,5,6, it is characterized in that, described piston is stainless steel piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620894.5U CN203515401U (en) | 2013-10-09 | 2013-10-09 | Piston type stand pipe pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620894.5U CN203515401U (en) | 2013-10-09 | 2013-10-09 | Piston type stand pipe pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203515401U true CN203515401U (en) | 2014-04-02 |
Family
ID=50374348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320620894.5U Expired - Fee Related CN203515401U (en) | 2013-10-09 | 2013-10-09 | Piston type stand pipe pressure transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203515401U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527052A (en) * | 2016-01-14 | 2016-04-27 | 湖北江汉石油仪器仪表股份有限公司 | Rubber cup protection structure of rubber-cup-type stand pipe pressure sensor |
| CN106895940A (en) * | 2017-03-08 | 2017-06-27 | 中国石油天然气股份有限公司 | Compacting force snesor, gravel fill the measurement apparatus and method of compaction |
| CN107269240A (en) * | 2017-08-07 | 2017-10-20 | 徐州徐工基础工程机械有限公司 | Horizontal directional drilling machine diaphragm type mud pressure transfer device |
| CN117232726A (en) * | 2023-11-14 | 2023-12-15 | 常州市华伟医疗用品有限公司 | A leakproofness batch detection system for syringe piston |
-
2013
- 2013-10-09 CN CN201320620894.5U patent/CN203515401U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527052A (en) * | 2016-01-14 | 2016-04-27 | 湖北江汉石油仪器仪表股份有限公司 | Rubber cup protection structure of rubber-cup-type stand pipe pressure sensor |
| CN106895940A (en) * | 2017-03-08 | 2017-06-27 | 中国石油天然气股份有限公司 | Compacting force snesor, gravel fill the measurement apparatus and method of compaction |
| CN106895940B (en) * | 2017-03-08 | 2019-04-12 | 中国石油天然气股份有限公司 | It is compacted the measuring device and method of force snesor, gravel filling compaction |
| CN107269240A (en) * | 2017-08-07 | 2017-10-20 | 徐州徐工基础工程机械有限公司 | Horizontal directional drilling machine diaphragm type mud pressure transfer device |
| CN117232726A (en) * | 2023-11-14 | 2023-12-15 | 常州市华伟医疗用品有限公司 | A leakproofness batch detection system for syringe piston |
| CN117232726B (en) * | 2023-11-14 | 2024-02-13 | 常州市华伟医疗用品有限公司 | A leakproofness batch detection system for syringe piston |
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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: 20140402 Termination date: 20151009 |
|
| EXPY | Termination of patent right or utility model |