CN203532944U - Pressure regulator valve position transmitting device - Google Patents

Pressure regulator valve position transmitting device Download PDF

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Publication number
CN203532944U
CN203532944U CN201320629920.0U CN201320629920U CN203532944U CN 203532944 U CN203532944 U CN 203532944U CN 201320629920 U CN201320629920 U CN 201320629920U CN 203532944 U CN203532944 U CN 203532944U
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CN
China
Prior art keywords
valve position
pressure governor
transmitting device
pressure
pressure regulator
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Expired - Lifetime
Application number
CN201320629920.0U
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Chinese (zh)
Inventor
王耀生
刘华伟
陆鸣伟
庄健
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SHANGHAI AEROSPACE ENERGY CO Ltd
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SHANGHAI AEROSPACE ENERGY CO Ltd
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Priority to CN201320629920.0U priority Critical patent/CN203532944U/en
Application granted granted Critical
Publication of CN203532944U publication Critical patent/CN203532944U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model provides a pressure regulator valve position transmitting device. The pressure regulator valve position transmitting device is characterized in that the pressure regulator valve position transmitting device comprises a pressure regulator, a mechanical unit, a valve position transmission rod, a valve position sensor and a signal transmitter; the mechanical unit is connected with the top of the pressure regulator, the valve position sensor and the signal transmitter are also arranged at the top of the pressure regulator and fixed into the mechanical unit respectively, the valve position sensor is connected with the signal transmitter through an electrical interface, the lower end of the valve position transmission rod is fixed onto a regulation diaphragm of the pressure regulator, and the upper end of the valve position transmission rod is connected with the valve position sensor. The pressure regulator valve position transmitting device meets the requirements for effective pressure regulator working state remote monitoring of an SCADA system, meanwhile, calculation of the instantaneous flow rate is performed indirectly by the utilization of the parameters such as the valve position opening degree of the pressure regulator and inlet/outlet pressure of the pressure regulator, and therefore a measuring device which is simple and convenient to use and practicable is provided.

Description

A kind of pressure governor valve position becomes send device
Technical field
The utility model relates to a kind of pressure governor valve position and becomes and send device, specifically a kind ofly can carry out for gas pressure regulator, governor the supervisory device of valve seat opening measurement.
Background technique
In recent years, along with the extensive use of the continuous quickening, particularly gas of China's natural gas Application and Development process, to gas transmission and distribution, management has proposed more actual demand.Especially the application popularization of SCADA System for City Gas Network (supervisory system), for the ﹑ of the movingization certainly letter breathization ﹑ long-range of gas distribution dispatching provides important guarantee. the outlet pressure of pressure governor and the flow of pressure governor in one of topmost monitor data voltage regulating station in SCADA system. and the valve seat opening of the pressure governor in other words working state of pressure governor is directly determining its outlet pressure and flow. so the valve position of pressure governor is monitored to attention and the favor that is also more and more subject to pipeline network company.
Valve position monitoring to pressure governor has become one of content of combustion gas SCADA.The grassroot project of on the one hand current domestic many gases, in the technical documentation of bid, to realizing the valve position Remote SCADA monitoring of pressure governor, has clear and definite requirement, has become a rigid index.On the other hand by accurately detecting the valve seat opening of pressure governor, and become a kind of new technological means in conjunction with the indirect measurement that the parameters such as inlet and outlet pressure of pressure governor realize flow, and being used to the traffic management of gas ductwork. yet many pressure governors of gas industry only have on-the-spot valve position deixis at present, and can not meet the actual demand of remote monitoring.
Summary of the invention
For the problems referred to above, the utility model provides a kind of pressure governor valve position to become and has sent device, for realizing well the remote monitoring to pressure governor valve position, and meet the demand that flow is indirectly measured, this device takes full advantage of the working principle of pressure governor, innovation ground installs machine assembly, valve position sensor and signal transmitting device additional at pressure governor top, and by the upper and lower displacement mode of valve position drive link, reasonably pressure governor valve seat opening is monitored.Its monitoring result is: when pressure governor valve seat opening is zero, the current signal of its corresponding output is 4mA, be its minimum range, and be aperture size (size) to each valve of pressure governor, the current signal of its corresponding output is that 4mA is to the fixed value between 20mA.And there is linear relationship between valve seat opening and output current.Thereby effectively the valve seat opening of pressure governor has been changed into the 4--20mA standard signal of commercial Application.Realized the demand that pipeline network company and gas company carry out SCADA remote monitoring and flow measuring and controlling.
In order to realize foregoing invention object, the utility model discloses a kind of pressure governor valve position change and send device, it is characterized in that, comprise: pressure governor, machine assembly, valve position drive link, valve position sensor and signal transmitting device, wherein, described machine assembly is connected with described pressure governor top, described valve position sensor and described signal transmitting device are also arranged at the top of described pressure governor and are individually fixed in the inside of described machine assembly, described valve position sensor is connected with described signal transmitting device by an electric interfaces, described valve position drive link lower end is fixed on the adjusting diaphragm of described pressure governor, and its upper end is connected with described valve position sensor.
Reasonable, pressure governor valve position of the present utility model becomes send device, it is characterized in that,
Described pressure governor comprises a pressure regulator body, a pressure governor diaphragm, a spiracle, a preregulator, a pressure regulation pilot valve, a pilot valve adjusting screw rod, a PRESSURE PIPE, a spool and a valve position indicating arm, described pressure regulation pilot valve is connected with described pressure regulator body with described preregulator respectively by described PRESSURE PIPE, described valve position indicating arm is connected with described pressure governor diaphragm, when described pressure governor spool moves up and down, can make described valve position indicating arm synchronize and move up and down with described pressure governor spool.
Reasonable, pressure governor valve position of the present utility model becomes send device, it is characterized in that,
Described machine assembly comprises a base, a fixing bolt, a location volution, a valve position sensor support, a signal transmitting device support, a cylindrical housings, an electric interfaces, an instrument support.
Reasonable, pressure governor valve position of the present utility model becomes send device, it is characterized in that,
Described valve position sensor comprises a valve position sensor body, a Returnning spring, a sensing sliding bar, a signal output interface.
Reasonable, pressure governor valve position of the present utility model becomes send device, it is characterized in that,
Described signal transmitting device comprises a signal transmitting device body, a signal input interface, a signal output interface.
Reasonable, pressure governor valve position of the present utility model becomes send device, it is characterized in that,
Described cylindrical housings further comprises an enclosure body, a circular top cover, an O-ring seals, a fastening screw.
The utility model is on the basis of the local valve position indication of original pressure governor, pressure governor top flange has been carried out to secondary operations, innovation ground installs machine assembly, valve position sensor and signal transmitting device additional at pressure governor top, and by the upper and lower displacement mode of valve position drive link, reasonably pressure governor valve seat opening is monitored.Effectively realized the demand that pipeline network company and gas company carry out SCADA remote monitoring and flow measuring and controlling.This pressure governor valve position becomes send device to have a style of one's own, compact structure, and beautiful shape, easy for installation, safe and reliable, unique in like product.
Accompanying drawing explanation
Below, with reference to accompanying drawing, for those skilled in the art, to detailed description of the present utility model, above-mentioned other objects of the present utility model, feature and advantage will be apparent.
Fig. 1 is functional block diagram of the present utility model;
Fig. 2 is structural principle schematic diagram of the present utility model;
Fig. 3 is voltage regulator operation principle schematic of the present utility model;
Fig. 4 is machine assembly structural representation of the present utility model.
Fig. 5 is valve position sensor of the present utility model and the work of signal transmitting device and connection diagram.
Embodiment
Refer to shown in accompanying drawing 1, pressure governor valve position of the present utility model becomes send device to comprise pressure governor 100, machine assembly 200, valve position drive link 300, valve position sensor 400 and signal transmitting device 500.
Fig. 2 has provided the pressure governor 100 in Fig. 1, machine assembly 200, valve position drive link 300, structural principle and the connection diagram of valve position sensor 400 and signal transmitting device more than 500 parts, wherein, machine assembly 200 is connected with pressure governor 100 top flange by fixing bolt, be positioned at the top of pressure governor 100, valve position sensor 400 and signal transmitting device 500 are individually fixed in the inside of machine assembly 200 by support, valve position sensor 400 is connected with signal transmitting device 500 by electric interfaces, valve position drive link 300 lower ends are fixed on the adjusting diaphragm of pressure governor 100, and its upper end is connected with valve position sensor 400 by location volution.
Fig. 3 has illustrated internal structure, Placement and the working principle of pressure governor 100.Because the lower end of valve position drive link 9 is fixed on the adjusting diaphragm 32 of pressure governor 100, when the adjusting diaphragm 32 of pressure governor 100 moves up and down, when the spool 38 of pressure governor 100 synchronously moves up and down, also can drive valve position drive link 39 synchronously to move up and down.Therefore the displacement amount of valve position drive link 39 has also just represented the displacement amount of spool 38, has represented the aperture of valve position.Pressure regulation pilot valve 35 is connected with pressure governor 31 with preregulator 34 respectively by PRESSURE PIPE 37.Because the lumen of pressure regulation pilot valve 35 is connected with the cavity of resorption of pressure governor 31, therefore can change by screwing pilot valve adjusting screw rod 36 variation of 31 times cavity pressures of pressure governor, thereby promoting pressure governor diaphragm 32 moves up and down, drive pressure governor spool 38 also to move up and down simultaneously, play the aperture that changes pressure governor 31 valve ports, control the effect of pressure governor opening and closing.
Fig. 4 has illustrated the composition structure of machine assembly 200 and the mounting point of each assembly.First pressure governor top flange 41 is the standard mount at pressure governor top, pressure governor valve position becomes send device pedestal 42 to be fixed in top flange 41 by fixing bolt 43, valve position sensor support 44 is fixed on base 42 with 45, signal transmitting device support, cylindrical housings 46 is fixed on base 42 by fastening screw trip bolt 410 and O RunddichtringO 49, dismountable top cover 47 is fixed on the top of cylindrical housings 46 by O RunddichtringO 412, valve position sensor 400 is fixed on support 44 by fixing threaded hole 413, and signal transmitting device 500 is fixed on support 45 by fixing threaded hole 414.On base 42, be also designed with instrument support 411 simultaneously.And the work for valve position drive link has also designed location volution 415 and O RunddichtringO 416.
Fig. 5 has illustrated that valve position sensor 400 is connected with wiring with working principle, the electric interfaces position of signal transmitting device 500.In valve position sensor 400, include Returnning spring 54, sensing sliding bar 55 and signal output interface 56, in signal transmitting device 500, include signal input interface 58 and signal output interface 59.When valve position drive link 300 moves up and down, by valve position sensor 400, resistance signal corresponding to displacement amount convert to, through connecting wire 57 access signal transmitting devices 500,500 the conversion by signal transmitting device becomes corresponding 4-20mA current signal again, through output signal connecting line, is finally delivered to watch-dog or SCADA system.
The utility model takes full advantage of the working principle of pressure governor, on the basis of the local valve position indication of original pressure governor, by pressure governor top flange is carried out to secondary operations, lay equal stress on and newly manufacture valve position drive link, innovation ground installs machine assembly, valve position sensor and signal transmitting device additional at pressure governor top, and by the upper and lower displacement mode of valve position drive link, first valve position signal is converted into resistance signal, again resistance signal is converted into the signal of standard 4--20mA, thereby effectively the valve seat opening of pressure governor has been changed into the 4--20mA standard signal of commercial Application.Realized the demand that pipeline network company and gas company carry out SCADA remote monitoring and flow measuring and controlling. by reality, use, the valve position teletransmission that this device is realized pressure governor for gas transmission and distribution field has good actual effect.
In addition, the utility model adopts demountable structure, easy to maintenance.
In addition, the utility model adopts waterproofing design, and works in intrinsic safety mode, so the utility model has applicability widely to field working conditions.
During use, when pressure governor 100 spools 308 change, can drive valve position drive link 300 to move up and down, drive the sliding bar 505 of valve position sensor 400 synchronously to move up and down simultaneously, at this moment valve position sensor 400 can be resistance signal corresponding to the displacement amount displacement of sliding bar, and by signal output 506 and connecting line 507 and be sent to signal transmitting device 500 through signal input 508, then signal transmitter 500 can be the resistance signal receiving, externally in the situation of 24V power supply, be converted into corresponding current signal, through output interface 509 and output line 510, pass to valve position monitoring equipment or SCADA supervisory system again.Thereby effectively the valve seat opening of pressure governor has been changed into the 4--20mA standard signal of commercial Application.Realized the demand that pipeline network company and gas company carry out SCADA remote monitoring and flow measuring and controlling.
The utility model takes full advantage of the working principle of pressure governor, and innovation ground installs machine assembly, valve position sensor and signal transmitting device additional at pressure governor top, and by the upper and lower displacement mode of valve position drive link, reasonably pressure governor valve seat opening is monitored.Its monitoring result is: when pressure governor valve seat opening is zero, the current signal of its corresponding output is 4mA, be its minimum range, and be aperture size (size) to each valve of pressure governor, the current signal of its corresponding output is that 4mA is to the fixed value between 20mA.And there is linear relationship between valve seat opening and output current.Thereby effectively the valve seat opening of pressure governor has been changed into the 4--20mA standard signal of commercial Application.Especially for gas company, met on the one hand the effective remote monitoring of SCADA system for voltage regulator operation state, simultaneously for utilizing the valve seat opening of pressure governor and in conjunction with the parameters such as inlet and outlet pressure of pressure governor, indirectly carry out the calculating of instantaneous flow, a set of simple and convenient, practicable measuring device is provided.
All embodiments are only for illustration of the utility model above, but not to restriction of the present utility model, person skilled in the relevant technique, in the situation that not departing from the utility model and scope, therefore can also make various conversion or variation, all technological schemes that are equal to also should belong to category of the present utility model and should be limited by each claim.

Claims (6)

1. device is sent in a pressure governor valve position change, it is characterized in that, comprise: pressure governor, machine assembly, valve position drive link, valve position sensor and signal transmitting device, wherein, described machine assembly is connected with described pressure governor top, described valve position sensor and described signal transmitting device are also arranged at the top of described pressure governor and are individually fixed in the inside of described machine assembly, described valve position sensor is connected with described signal transmitting device by an electric interfaces, described valve position drive link lower end is fixed on the adjusting diaphragm of described pressure governor, and its upper end is connected with described valve position sensor.
2. device is sent in pressure governor valve position change according to claim 1, it is characterized in that,
Described pressure governor comprises a pressure regulator body, a pressure governor diaphragm, a spiracle, a preregulator, a pressure regulation pilot valve, a pilot valve adjusting screw rod, a PRESSURE PIPE, a spool and a valve position indicating arm, described pressure regulation pilot valve is connected with described pressure regulator body with described preregulator respectively by described PRESSURE PIPE, described valve position indicating arm is connected with described pressure governor diaphragm, when described pressure governor spool moves up and down, can make described valve position indicating arm synchronize and move up and down with described pressure governor spool.
3. device is sent in pressure governor valve position change according to claim 2, it is characterized in that,
Described machine assembly comprises a base, a fixing bolt, a location volution, a valve position sensor support, a signal transmitting device support, a cylindrical housings, an electric interfaces, an instrument support.
4. device is sent in pressure governor valve position change according to claim 3, it is characterized in that,
Described valve position sensor comprises a valve position sensor body, a Returnning spring, a sensing sliding bar, a signal output interface.
5. device is sent in pressure governor valve position change according to claim 4, it is characterized in that
Described signal transmitting device comprises a signal transmitting device body, a signal input interface, a signal output interface.
6. according to the pressure governor valve position described in claim 3 or 4 or 5, become and send device, it is characterized in that
Described cylindrical housings further comprises an enclosure body, a circular top cover, an O-ring seals, a fastening screw.
CN201320629920.0U 2013-10-12 2013-10-12 Pressure regulator valve position transmitting device Expired - Lifetime CN203532944U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320629920.0U CN203532944U (en) 2013-10-12 2013-10-12 Pressure regulator valve position transmitting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320629920.0U CN203532944U (en) 2013-10-12 2013-10-12 Pressure regulator valve position transmitting device

Publications (1)

Publication Number Publication Date
CN203532944U true CN203532944U (en) 2014-04-09

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Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106678439A (en) * 2016-12-07 2017-05-17 歌思(天津)低温设备有限公司 Novel natural gas pressure regulator
CN109185468A (en) * 2018-11-29 2019-01-11 美钻深海能源科技研发(上海)有限公司 A kind of manual cage set throttle valve with valve position transmitter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106678439A (en) * 2016-12-07 2017-05-17 歌思(天津)低温设备有限公司 Novel natural gas pressure regulator
CN109185468A (en) * 2018-11-29 2019-01-11 美钻深海能源科技研发(上海)有限公司 A kind of manual cage set throttle valve with valve position transmitter

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Granted publication date: 20140409

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