CN201487227U - Direct-acting gas pressure regulator with self safety stop valve - Google Patents

Direct-acting gas pressure regulator with self safety stop valve Download PDF

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Publication number
CN201487227U
CN201487227U CN2009201709664U CN200920170966U CN201487227U CN 201487227 U CN201487227 U CN 201487227U CN 2009201709664 U CN2009201709664 U CN 2009201709664U CN 200920170966 U CN200920170966 U CN 200920170966U CN 201487227 U CN201487227 U CN 201487227U
Authority
CN
China
Prior art keywords
cut
diaphragm
stop valve
valve rod
ball
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.)
Expired - Lifetime
Application number
CN2009201709664U
Other languages
Chinese (zh)
Inventor
孟凡坤
郑奎彬
杨长梁
荣庆雨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HEBEI COMET PRESSURE REGULATOR CO Ltd
Original Assignee
HEBEI COMET PRESSURE REGULATOR CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HEBEI COMET PRESSURE REGULATOR CO Ltd filed Critical HEBEI COMET PRESSURE REGULATOR CO Ltd
Priority to CN2009201709664U priority Critical patent/CN201487227U/en
Application granted granted Critical
Publication of CN201487227U publication Critical patent/CN201487227U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model belongs to the technical field of gas transmission and distribution equipment, and discloses a direct-acting gas pressure regulator with a self safety stop valve. The main technical characteristics of the safety stop valve are as follows: the safety stop valve comprises a shell provided with a gas inlet, a gas outlet and a diaphragm chamber, wherein the diaphragm chamber is internally provide with a diaphragm which divides the diaphragm chamber into an upper chamber and a lower chamber; the upper chamber is internally provided with a tray, a pressure adjusting spring and an adjusting nut; the lower chamber is communicated with the gas outlet with a signal feedback pipe; the shell is internally provided with a stop valve rod, the bottom of which is provided with a stop valve and a stop spring; the stop valve rod perpendicularly penetrates through the diaphragm, the tray, the pressure adjusting spring and the adjusting nut in the diaphragm chamber; the stop valve rod is sleeved with a sleeve with a ball; the stop valve rod is provided with a groove which is matched with the ball; the bottom of the groove is a slant; and the position where the inner wall of the tray and the ball are matched is provided with a boss. The diaphragm upper chamber of the stop valve is directly communicated with atmosphere, thus being not corroded by gas; and the stop valve adopts a steel ball structure, thereby greatly improving the stopping sensitivity thereof.

Description

Direct acting type gas pressure regulator, governor self band safety cut-off valve
Technical field
The utility model belongs to the gas transmission and distribution equipment technical field, relates in particular to a kind of direct acting type gas pressure regulator, governor self band safety cut-off valve.
Background technique
The safety cut-off valve that gas pressure regulator, governor self is subsidiary is the pressure regulation attendant equipment that is specially adapted in the gas transmission and distribution system, is used for the gas transmission and distribution engineering, and its effect is a protection pressure governor upstream device.The safety cut-off valve arrangement of current use comprises the housing that has suction port, air outlet, diaphragm chamber, be provided with diaphragm in the diaphragm chamber and be divided into cavity of resorption and epicoele, be provided with pallet, pressure adjusting spring and adjusting nut in the epicoele, cavity of resorption is connected with the air outlet by the signal feed back pipe, be provided with the bottom in the housing and be the cut-out valve rod of cut-off valve, diaphragm be arranged in parallel with cutting off valve rod, is connected by stop rod between diaphragm and cut-out valve rod.Cut-off valve is when proper functioning, and valve port is opened, and air outlet pressure enters the diaphragm cavity of resorption through the signal feed back pipe, and power that makes progress in the diaphragm cavity of resorption and epicoele internal pressure-regulating spring are set downward power and reached balance, and valve port is in open mode.When the combustion gas voltage adjusting device breaks down, air outlet pressure raises, the signal feed back pipe in time feeds back to the diaphragm cavity of resorption with the outlet pressure signal, when the power that the diaphragm cavity of resorption makes progress is set downward power greater than diaphragm epicoele internal pressure-regulating spring, stop rod moves up and leaves the cut-out valve rod, cut off valve rod and under the effect of cutting off spring, move forward, thereby cut off valve port, reach the effect of cutting off source of the gas.The gas of this cut-off valve air outlet leads to the cut-off valve rod rear end by stop rod, must just can prevent to leak outside with plug sealing, is opening that plug cuts off that valve rod resets or maintain and replace when cutting off valve rod, in case the plug bad sealing will produce the gas phenomenon that leaks outside.
The model utility content
Problem to be solved in the utility model just provide a kind of simple in structure, do not have outer gas leakage phenomenon, cut off direct acting type gas pressure regulator, governor self band safety cut-off valve highly sensitive, that be convenient to keep in repair.
For addressing the above problem, the technical solution adopted in the utility model is: comprise having suction port, the air outlet, the housing of diaphragm chamber, be provided with diaphragm in the diaphragm chamber and be divided into cavity of resorption and epicoele, be provided with pallet in the epicoele, pressure adjusting spring and adjusting nut, cavity of resorption is connected with the air outlet by the signal feed back pipe, be provided with the cut-out valve rod that the bottom has cut-off valve and cuts off spring in the housing, described cut-out valve rod vertically passes the diaphragm in the diaphragm chamber, pallet, pressure adjusting spring and adjusting nut, cut off on the valve rod and be with the sleeve that has ball, cut off on the valve rod and have the groove that is complementary with ball, bottom portion of groove is a domatic, and pallet inwall and ball matching part are provided with boss.
Its additional technical feature is: described ball is three; The top of described cut-out valve rod is connected with the cut-out loam cake.
Direct acting type gas pressure regulator, governor provided by the utility model self band safety cut-off valve cuts off valve rod and vertically passes diaphragm chamber interior diaphragm, pallet, pressure adjusting spring and adjusting nut.Cut-off valve is when proper functioning, valve port is opened, air outlet pressure enters the diaphragm cavity of resorption through the signal feed back pipe, power that makes progress in the diaphragm cavity of resorption and epicoele internal pressure-regulating spring are set downward power and are reached balance, the boss of pallet inwall is in the ball position, cut off in the valve rod upper groove being extruded in the ball, ball plays braking action to cutting off valve rod, and valve port is in open mode.When the combustion gas voltage adjusting device breaks down, air outlet pressure raises, the signal feed back pipe in time feeds back to the diaphragm cavity of resorption with the outlet pressure signal, when the power that the diaphragm cavity of resorption makes progress is set downward power greater than diaphragm epicoele internal pressure-regulating spring, diaphragm drives pallet and moves up, the boss of pallet inwall leaves the ball position, ball no longer is subjected to external compression, cutting off valve rod simultaneously moves up under the effect of cutting off spring, the domatic that cuts off valve rod upper groove bottom squeezes ball outward, cut off valve rod and braked by ball, thereby cut off valve port, reach the effect of cutting off source of the gas.The diaphragm epicoele of this cut-off valve directly communicates with atmosphere, is not subjected to the corrosion of combustion gas, also just can reach the combustion gas phenomenon that do not leak outside without plug sealing.Adopt steel ball structure, improved it greatly and cut off sensitivity, thereby more effectively guaranteed the safe operation of pressure governor, and pulling is flexibly, good seal performance, compact structure, volume are little, in light weight.And the top that cuts off valve rod is connected with the cut-out loam cake, conveniently cuts off resetting of valve rod, and can prevent that pressure adjusting spring and adjusting nut from coming off.
Description of drawings
Accompanying drawing is the structural representation of the utility model direct acting type gas pressure regulator, governor self band safety cut-off valve.
Embodiment
Be described in further details below in conjunction with the structure and the working principle of the drawings and specific embodiments the utility model direct acting type gas pressure regulator, governor self band safety cut-off valve.
As shown in the figure, the utility model direct acting type gas pressure regulator, governor self band safety cut-off valve comprises housing 1, housing 1 has suction port 2, air outlet 3, diaphragm chamber 4, be provided with diaphragm 5 in the diaphragm chamber 4 and be divided into cavity of resorption 6 and epicoele 7, be provided with pallet 8 in the epicoele 7, pressure adjusting spring 9 and adjusting nut 10, cavity of resorption 6 is connected with air outlet 3 by signal feed back pipe 11, be provided with the cut-out valve rod 14 that the bottom has cut-off valve 12 and cuts off spring 13 in the housing 1, cut-out valve rod 14 vertically passes the diaphragm 5 in the diaphragm chamber 4, pallet 8, pressure adjusting spring 9 and adjusting nut 10, cut off on the valve rod 14 and be with the sleeve 16 that has ball 15, cut off on the valve rod 14 and have the groove 17 that is complementary with ball 15, groove 17 bottoms are domatic, pallet 8 inwalls and ball 15 matching parts are provided with boss 18, and the top that cuts off valve rod 14 is connected with and cuts off loam cake 19.
The utility model direct acting type gas pressure regulator, governor self band safety cut-off valve is when proper functioning, valve port is opened, air outlet 3 pressure enter cavity of resorption 6 through signal feed back pipe 11, power that makes progress in the cavity of resorption 6 and epicoele 7 internal pressure-regulating springs 9 are set downward power and are reached balance, the boss 18 of pallet 8 inwalls is in ball 15 positions, cut off in valve rod 14 upper grooves 17 being extruded in the ball 15,15 pairs on ball cuts off valve rod 14 and plays braking action, and valve port is in open mode.When the combustion gas voltage adjusting device breaks down, air outlet 3 pressure raise, signal feed back pipe 11 in time feeds back to cavity of resorption 6 with the outlet pressure signal, when the power that cavity of resorption 6 makes progress is set downward power greater than epicoele 7 internal pressure-regulating springs 9, diaphragm 5 drives pallet 8 and moves up, the boss 18 of pallet 8 inwalls leaves ball 15 positions, ball 15 no longer is subjected to external compression, cutting off valve rod 14 simultaneously moves up under the effect of cutting off spring 13, the domatic that cuts off valve rod 14 upper grooves 17 bottoms squeezes ball 15 outward, cut off valve rod 14 and no longer be subjected to ball 15 brakings, thereby cut off valve port, reach the effect of cutting off source of the gas.And the top that cuts off valve rod 14 is connected with cut-out loam cake 19, conveniently cuts off resetting of valve rod 14, and can prevent that pressure adjusting spring 9 and adjusting nut 10 from coming off.

Claims (3)

1. direct acting type gas pressure regulator, governor self is with safety cut-off valve, comprise and have suction port, the air outlet, the housing of diaphragm chamber, be provided with diaphragm in the diaphragm chamber and be divided into cavity of resorption and epicoele, be provided with pallet in the epicoele, pressure adjusting spring and adjusting nut, cavity of resorption is connected with the air outlet by the signal feed back pipe, be provided with the cut-out valve rod that the bottom has cut-off valve and cuts off spring in the housing, it is characterized in that: described cut-out valve rod vertically passes the diaphragm in the diaphragm chamber, pallet, pressure adjusting spring and adjusting nut, cut off on the valve rod and be with the sleeve that has ball, cut off on the valve rod and have the groove that is complementary with ball, bottom portion of groove is a domatic, and pallet inwall and ball matching part are provided with boss.
2. direct acting type gas pressure regulator, governor according to claim 1 self band safety cut-off valve, it is characterized in that: described ball is three.
3. direct acting type gas pressure regulator, governor according to claim 1 self band safety cut-off valve, it is characterized in that: the top of described cut-out valve rod is connected with the cut-out loam cake.
CN2009201709664U 2009-08-11 2009-08-11 Direct-acting gas pressure regulator with self safety stop valve Expired - Lifetime CN201487227U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201709664U CN201487227U (en) 2009-08-11 2009-08-11 Direct-acting gas pressure regulator with self safety stop valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201709664U CN201487227U (en) 2009-08-11 2009-08-11 Direct-acting gas pressure regulator with self safety stop valve

Publications (1)

Publication Number Publication Date
CN201487227U true CN201487227U (en) 2010-05-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009201709664U Expired - Lifetime CN201487227U (en) 2009-08-11 2009-08-11 Direct-acting gas pressure regulator with self safety stop valve

Country Status (1)

Country Link
CN (1) CN201487227U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103574066A (en) * 2013-10-29 2014-02-12 大丰市燃气设备有限责任公司 Pressure regulator provided with muffler device
CN104633196A (en) * 2015-02-11 2015-05-20 河北安信燃气设备有限公司 Front Voltage regulator of medium pressure indoor table for super-voltage-loss excess flow cut-off protection
CN104930233A (en) * 2015-04-29 2015-09-23 北京市公用事业科学研究所 Self-balancing safety gas shut-off valve
CN108547997A (en) * 2018-06-29 2018-09-18 上海飞奥燃气设备有限公司 A kind of long-range pressure regulation gas pressure regulator, governor and its long-range pressure regulation method
CN110043330A (en) * 2019-05-05 2019-07-23 江苏源生源动力科技有限公司 A kind of steam turbine with safety is into the steam control valve institution of distributing gas

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103574066A (en) * 2013-10-29 2014-02-12 大丰市燃气设备有限责任公司 Pressure regulator provided with muffler device
CN103574066B (en) * 2013-10-29 2016-06-08 大丰市燃气设备有限责任公司 Pressure regulator with silencing apparatus
CN104633196A (en) * 2015-02-11 2015-05-20 河北安信燃气设备有限公司 Front Voltage regulator of medium pressure indoor table for super-voltage-loss excess flow cut-off protection
CN104633196B (en) * 2015-02-11 2017-02-01 河北安信燃气设备有限公司 Front Voltage regulator of medium pressure indoor table for super-voltage-loss excess flow cut-off protection
CN104930233A (en) * 2015-04-29 2015-09-23 北京市公用事业科学研究所 Self-balancing safety gas shut-off valve
CN108547997A (en) * 2018-06-29 2018-09-18 上海飞奥燃气设备有限公司 A kind of long-range pressure regulation gas pressure regulator, governor and its long-range pressure regulation method
CN108547997B (en) * 2018-06-29 2019-10-11 上海飞奥燃气设备有限公司 A kind of long-range pressure regulation gas pressure regulator, governor and its long-range pressure regulation method
CN110043330A (en) * 2019-05-05 2019-07-23 江苏源生源动力科技有限公司 A kind of steam turbine with safety is into the steam control valve institution of distributing gas
CN110043330B (en) * 2019-05-05 2021-08-03 江苏源生源动力科技有限公司 Steam turbine steam inlet regulating valve steam distribution mechanism with safety

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Granted publication date: 20100526