CN216344164U - Pilot piston type pressure reducing valve - Google Patents
Pilot piston type pressure reducing valve Download PDFInfo
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- CN216344164U CN216344164U CN202122651091.3U CN202122651091U CN216344164U CN 216344164 U CN216344164 U CN 216344164U CN 202122651091 U CN202122651091 U CN 202122651091U CN 216344164 U CN216344164 U CN 216344164U
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Abstract
The utility model discloses a pilot piston type pressure reducing valve, which comprises a main valve and a pilot valve, wherein the main valve comprises a valve body, an upper cover and a lower cover which are respectively positioned at the top and the bottom of the valve body, a flow passage which is communicated from left to right is arranged in the valve body, the main valve seat divides the flow passage into a flow inlet cavity and a flow outlet cavity, a flange cover and an adjusting screw are fixedly arranged above the upper cover, an inlet pressure sensor and an outlet pressure sensor are respectively and fixedly arranged on an inlet pilot passage and an outlet pilot passage, an electric actuating mechanism for controlling the adjusting screw to rotate forwards and backwards is fixedly arranged above the flange cover, and a wireless remote monitoring module for collecting pressure data and setting outlet pressure is fixedly arranged on the side wall of the flange cover. The utility model can realize remote data acquisition and outlet pressure setting through the Internet of things, can realize real-time sampling and big data comparison and analysis, and has high working efficiency.
Description
Technical Field
The utility model relates to a pressure reducing valve, in particular to a pilot piston type pressure reducing valve.
Background
The piston type pressure reducing valve adopts the opening degree of an opening and closing piece (piston) in a control valve body to adjust the flow rate of a medium, reduces the pressure of the medium, adjusts the opening degree of the opening and closing piece by the action of the pressure behind the valve, keeps the pressure behind the valve in a certain range, and keeps the outlet pressure in a set range under the condition that the inlet pressure is continuously changed. The prior art has the following disadvantages: the parameters of the fluid medium in the flow channel are determined, the fluid medium needs to be sampled, and the pressure reducing valve or the joint of the pressure reducing valve and the pipeline needs to be disassembled, so that the sampling operation is very troublesome and inconvenient, a large amount of samples cannot be taken and big data comparison is carried out, and the existing pressure reducing valve needs to be manually operated and adjusted on site when the outlet pressure is set, so that the response speed is low, and the working efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems in the prior art, and provides a pilot piston type pressure reducing valve which is convenient for the Internet of things to carry out remote data acquisition and outlet pressure setting, can carry out real-time sampling and big data comparison analysis and has high working efficiency.
The utility model adopts the technical scheme for solving the technical problems that: a pilot piston type pressure reducing valve comprises a main valve and a pilot valve, wherein the main valve comprises a valve body, an upper cover and a lower cover which are respectively positioned at the top and the bottom of the valve body, a flow passage which is communicated from left to right is arranged in the valve body, a main valve seat is arranged in the middle of the flow passage and divides the flow passage into a flow inlet cavity and a flow outlet cavity, a cylinder body is arranged above the main valve seat, a piston and a valve rod are arranged on the cylinder body, a main valve flap which is matched with the main valve seat to realize sealing is fixedly connected onto the valve rod, a main valve spring is arranged between the main valve flap and the lower cover, the pilot valve is arranged in the upper cover and comprises a pilot valve seat, a pilot valve flap which is matched with the pilot valve seat to realize sealing, and a pilot valve spring positioned below the pilot valve flap, a flange cover is fixedly arranged above the upper cover, an adjusting spring is arranged in the flange cover, and a pressing plate for pressing the pilot valve flap to open and close is arranged at the lower end of the adjusting spring, flange cover top threaded connection has and is used for adjusting spring pressure is with the adjusting screw who sets for outlet pressure, be provided with import guide passageway and export guide passageway that is connected to on the pilot valve respectively on influent chamber and the play flow chamber, fixed inlet pressure sensor and the export pressure sensor of being provided with respectively on import guide passageway and the export guide passageway, flange cover top fixed mounting has the electric actuator who is used for controlling adjusting screw just reverse, fixed mounting has the wireless remote monitoring module who is used for gathering pressure data and sets for outlet pressure on the lateral wall of flange cover, inlet pressure sensor, export pressure sensor and electric actuator all with wireless remote monitoring module electric connection.
In order to further perfect, electric actuator includes fixed sleeve and sets up spanner sleeve, driving motor and the speed reduction drive mechanism in it, fixed sleeve with flange cover fixed connection, driving motor fixed mounting be in fixed sleeve upper portion, spanner sleeve rotates to be installed fixed sleeve lower part and cover are established on adjusting screw, pass through between driving motor's the output and the telescopic up end of spanner speed reduction drive mechanism carries out fixed connection.
Further perfect, speed reduction drive mechanism is including fixed outer ring gear that sets up on fixed sleeve inner wall, the fixed sun gear that sets up at the driving motor output and a plurality of circumference distribute the planetary gear at spanner sleeve up end, mesh through planetary gear between outer ring gear and the sun gear.
Further perfection, wireless remote monitoring module includes single chip module and electric connection in single chip module's pressure data acquisition module, wireless transceiver module, motor control module and solar energy power module, import pressure sensor and export pressure sensor all are connected with pressure data acquisition module, motor control module is connected with driving motor.
Further perfecting, the flange cover is provided with air holes communicating the inside and the outside, a sealing gasket is arranged between the flange cover and the upper cover, a diaphragm is fixedly arranged on the sealing gasket, and the diaphragm is positioned between the pressure plate and the pilot valve; and a flange bolt connecting structure is arranged between the flange cover and the upper cover.
The utility model has the beneficial effects that: the inlet pressure sensor and the outlet pressure sensor are respectively arranged on the inlet pilot channel and the outlet pilot channel, so that the medium pressure at the inlet and the outlet can be sampled and detected, the medium pressure can be sampled and sent to the monitoring center for big data comparison and analysis through the wireless remote monitoring module, the working efficiency is high, the monitoring center can remotely control the adjusting screw on the reducing valve to rotate forwards and backwards through the wireless remote monitoring module and the electric actuating mechanism, and the outlet pressure behind the valve can be adjusted and set in time.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged view of a portion of the structure of fig. 1.
Description of reference numerals: 1. the valve comprises a valve body, 2, an upper cover, 3, a lower cover, 4, a main valve seat, 5, a cylinder body, 6, a piston, 7, a valve rod, 8, a main valve flap, 9, a main valve spring, 10, a guide valve seat, 11, a guide valve flap, 12, a guide valve spring, 13, a flange cover, 14, an adjusting spring, 15, a pressing plate, 16, an adjusting screw, 17, an air hole, 18, a sealing gasket, 19, a diaphragm, 20, an inlet guide channel, 21, an outlet guide channel, 22, a flow inlet cavity, 23, a flow outlet cavity, 24, an inlet pressure sensor, 25, an outlet pressure sensor, 26, an electric actuator, 27, a wireless remote monitoring module, 28, a fixed sleeve, 29, a wrench sleeve, 30, a driving motor, 31 and a speed reduction transmission mechanism.
Detailed Description
The utility model will be further described with reference to the accompanying drawings in which:
referring to figures 1-2: the pilot piston type pressure reducing valve in the embodiment comprises a main valve and a pilot valve, wherein the main valve comprises a valve body 1, an upper cover 2 and a lower cover 3 which are respectively positioned at the top and the bottom of the valve body 1, a flow passage which is communicated from left to right is arranged in the valve body 1, a main valve seat 4 is arranged in the middle of the flow passage, the flow passage is divided into a flow inlet cavity 22 and a flow outlet cavity 23 by the main valve seat 4, a cylinder body 5 is arranged above the main valve seat 4, a piston 6 and a valve rod 7 are arranged on the cylinder body 5, a main valve flap 8 which is matched with the main valve seat 4 to realize sealing is fixedly connected to the valve rod 7, a main valve spring 9 is arranged between the main valve flap 8 and the lower cover 3, the pilot valve is arranged in the upper cover 2, the pilot valve comprises a pilot valve seat 10, a pilot valve flap 11 which is matched with the pilot valve seat 10 to realize sealing, and a pilot valve spring 12 positioned below the pilot valve flap 11, and a flange cover 13 is fixedly arranged above the upper cover 2, an adjusting spring 14 is arranged in the flange cover 13, a pressure plate 15 for pressing the pilot valve flap 11 to open and close is arranged at the lower end of the adjusting spring 14, an adjusting screw 16 for adjusting the pressure of the adjusting spring 14 to set the outlet pressure is connected with the top of the flange cover 13 through a thread, the inlet cavity 22 and the outlet cavity 23 are respectively provided with an inlet pilot channel 20 and an outlet pilot channel 21 which are connected with pilot valves, the inlet pilot channel 20 and the outlet pilot channel 21 are respectively fixedly provided with an inlet pressure sensor 24 and an outlet pressure sensor 25, an electric actuating mechanism 26 for controlling the forward and reverse rotation of the adjusting screw 16 is fixedly arranged above the flange cover 13, a wireless remote monitoring module 27 for collecting pressure data and setting outlet pressure is fixedly arranged on the side wall of the flange cover 13, the inlet pressure sensor 24, the outlet pressure sensor 25 and the electric actuator 26 are all electrically connected with the wireless remote monitoring module 27.
When the regulating spring 14 is in the free state, the main valve and the pilot valve are closed, and the pressure reducing valve is in the non-operating state. Screwing the adjusting screw 16 to compress the adjusting spring 14, so that the pressure of the adjusting spring drives the pressing plate 15 to push the pilot valve flap 11 to open against the pressure of the pilot valve spring 12 and the pressure of the inlet medium, and simultaneously, the medium flows through the pilot valve from an inlet pilot channel 24 on the inlet chamber to be decompressed and enters the cylinder 5; because the effective acting area of the piston 6 is much larger than the pressure acting area of the main valve flap 8, the piston 6 pushes the main valve flap 8 to overcome the force of the main valve spring 9 and the pressure of the valve inlet medium through the valve rod 7 under the action of the internal and external pressure difference, so that a large amount of working medium flows to the outflow cavity 30 after being decompressed through the opening gap between the main valve flap 8 and the main valve seat 4, then the outlet pilot channel 25 enters the lower inner cavity of the pressure plate 15, the outlet pressure gradually rises to a required value, and the force of the sensitive motion system of the decompression valve is in a balanced state. If the outlet pressure is increased, the original balance state is destroyed, the medium pressure below the pressure plate 15 is larger than the pressure of the adjusting spring 14, so the pressure plate 15 moves upwards, the pilot valve moves towards the closing direction, the medium flowing into the cylinder 5 is reduced, the main valve flap 8 moves towards the closing direction, the opening degree is reduced, the medium flowing through the main valve is reduced, the outlet pressure is reduced along with the reduction of the outlet pressure, so that the new balance is achieved, and the outlet pressure can be automatically kept within a certain range. The inlet pilot channel 20 and the outlet pilot channel 21 are respectively provided with the inlet pressure sensor 24 and the outlet pressure sensor 25, the medium pressure at the inlet and the outlet can be sampled and detected, the medium pressure can be sampled and sent to the monitoring center for big data comparison and analysis through the wireless remote monitoring module 27, the working efficiency is high, the monitoring center can remotely control the adjusting screw 16 on the reducing valve to rotate forwards and backwards through the wireless remote monitoring module 27 and the electric actuating mechanism 26, and the outlet pressure after the valve can be adjusted and set in time.
Wireless remote monitoring module 27 includes single chip module and electric connection in single chip module's pressure data acquisition module, wireless transceiver module, motor control module and solar energy power module, import pressure sensor 24 and export pressure sensor 25 all are connected with pressure data acquisition module, motor control module is connected with driving motor 30. Solar power module can supply power for above-mentioned component, energy-concerving and environment-protective, easy to assemble, the data that import pressure sensor 24 and export pressure sensor 25 gathered are exported for the singlechip module after pressure data acquisition module storage, the singlechip module can upload the data to network data monitoring center through wireless transceiver module, carry out big data comparative analysis, high working efficiency, control signal is issued to the monitoring center, long-range driving motor who controls on the relief pressure valve through motor control module rotates just backwards, twist adjusting screw, in time adjust the settlement to outlet pressure behind the valve.
The flange cover 13 is provided with an air hole 17 for communicating the inside and the outside, a sealing gasket 18 is arranged between the flange cover 13 and the upper cover 2, a membrane 19 is fixedly arranged on the sealing gasket 18, and the membrane 19 is positioned between the pressure plate 15 and the guide valve flap 11; and a flange bolt connecting structure is arranged between the flange cover 13 and the upper cover 2. The diaphragm 19 and the sealing gasket 18 can improve the sealing performance of the flange cover 13, isolate a medium below the diaphragm 19, prolong the service life of the spring, avoid leakage when the adjusting screw 16 rotates and protect the electric actuator 26.
While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.
Claims (5)
1. The utility model provides a pilot piston formula relief pressure valve, includes main valve and pilot valve, the main valve includes valve body (1) and upper cover (2) and lower cover (3) that are located valve body (1) top and bottom respectively, be equipped with the runner that link up about in valve body (1), the runner middle part is equipped with main valve seat (4), and this main valve seat (4) divide into the runner and advance flow chamber (22) and two parts of chamber (23) of effluenting, main valve seat (4) top is equipped with cylinder body (5), installs piston (6) and valve rod (7) on cylinder body (5), and fixedly connected with cooperation main valve seat (4) realizes sealed main valve lamella (8) on valve rod (7), install main valve spring (9) between lamella (8) and lower cover (3), install in upper cover (2) the pilot valve, the pilot valve includes pilot valve seat (10), cooperation pilot valve seat (10) realizes sealed lamella (11) and is located spring (12) of the below of pilot valve lamella (11) ) The utility model discloses a pressure regulating valve, upper cover (2) top fixed mounting has flange cover (13), is equipped with adjusting spring (14) in flange cover (13), and the lower extreme of adjusting spring (14) is equipped with and is used for pressing pressure plate (15) that lead valve clack (11) opened and close in order to realize, and flange cover (13) top threaded connection has and is used for adjusting spring (14) pressure is with adjusting screw (16) of setting for outlet pressure, its characterized in that: the inlet chamber (22) and the outlet chamber (23) are respectively provided with an inlet pilot channel (20) and an outlet pilot channel (21) which are connected to the pilot valve, the inlet pilot channel (20) and the outlet pilot channel (21) are respectively fixedly provided with an inlet pressure sensor (24) and an outlet pressure sensor (25), an electric actuating mechanism (26) which is used for controlling the forward and reverse rotation of the adjusting screw (16) is fixedly arranged above the flange cover (13), a wireless remote monitoring module (27) which is used for acquiring pressure data and setting outlet pressure is fixedly arranged on the side wall of the flange cover (13), and the inlet pressure sensor (24), the outlet pressure sensor (25) and the electric actuating mechanism (26) are electrically connected with the wireless remote monitoring module (27).
2. A pilot piston pressure reducing valve according to claim 1, wherein: electric actuator (26) are including fixed sleeve (28) and spanner sleeve (29), driving motor (30) and speed reduction drive mechanism (31) of setting in it, fixed sleeve (28) with flange cover (13) fixed connection, driving motor (30) fixed mounting be in fixed sleeve (28) upper portion, spanner sleeve (29) rotate to be installed fixed sleeve (28) lower part and cover are established on adjusting screw (16), pass through between the output of driving motor (30) and the up end of spanner sleeve (29) speed reduction drive mechanism (31) carry out fixed connection.
3. A pilot piston pressure reducing valve according to claim 2, wherein: the speed reduction transmission mechanism (31) comprises an outer gear ring fixedly arranged on the inner wall of the fixed sleeve (28), a sun gear fixedly arranged at the output end of the driving motor (30) and a plurality of planetary gears circumferentially distributed on the upper end face of the wrench sleeve (29), and the outer gear ring is meshed with the sun gear through the planetary gears.
4. A pilot piston pressure reducing valve according to claim 2, wherein: the wireless remote monitoring module (27) comprises a single-chip microcomputer module and a pressure data acquisition module, a wireless transceiving module, a motor control module and a solar power module which are electrically connected with the single-chip microcomputer module, the inlet pressure sensor (24) and the outlet pressure sensor (25) are connected with the pressure data acquisition module, and the motor control module is connected with the driving motor (30).
5. A pilot piston pressure reducing valve according to any one of claims 1-4, wherein: the flange cover (13) is provided with air holes (17) for communicating the inside and the outside, a sealing gasket (18) is arranged between the flange cover (13) and the upper cover (2), a membrane (19) is fixedly arranged on the sealing gasket (18), and the membrane (19) is positioned between the pressure plate (15) and the guide valve flap (11); and a flange bolt connecting structure is arranged between the flange cover (13) and the upper cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122651091.3U CN216344164U (en) | 2021-10-30 | 2021-10-30 | Pilot piston type pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122651091.3U CN216344164U (en) | 2021-10-30 | 2021-10-30 | Pilot piston type pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216344164U true CN216344164U (en) | 2022-04-19 |
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ID=81132043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122651091.3U Active CN216344164U (en) | 2021-10-30 | 2021-10-30 | Pilot piston type pressure reducing valve |
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| Country | Link |
|---|---|
| CN (1) | CN216344164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116181940A (en) * | 2023-04-26 | 2023-05-30 | 青岛开元阀门有限公司 | Air pressure reducing valve for ship |
-
2021
- 2021-10-30 CN CN202122651091.3U patent/CN216344164U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116181940A (en) * | 2023-04-26 | 2023-05-30 | 青岛开元阀门有限公司 | Air pressure reducing valve for ship |
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