CN209762358U - Pressure balancer for gas pressure regulator - Google Patents
Pressure balancer for gas pressure regulator Download PDFInfo
- Publication number
- CN209762358U CN209762358U CN201920689773.3U CN201920689773U CN209762358U CN 209762358 U CN209762358 U CN 209762358U CN 201920689773 U CN201920689773 U CN 201920689773U CN 209762358 U CN209762358 U CN 209762358U
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- valve
- pressure
- gas
- balancer
- guide body
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Abstract
The utility model belongs to the technical field of gas transmission and distribution equipment, a pressure balancer for gas pressure regulator is disclosed. The main technical characteristics are as follows: the balance valve comprises a valve port and an adjusting diaphragm, wherein the adjusting diaphragm is connected with a valve rod, the valve rod is provided with a movable valve, the outer sides of the valve rod and the movable valve are provided with a balancer shell with a built-in boss, a balance film, a pressure plate and a conductor are arranged in the balancer shell, the inner side of the balance film is arranged between the pressure plate and the movable valve, the outer side of the balance film is arranged between the conductor and the boss, a balance cavity is formed among the balance film, the pressure plate and the conductor, a flow guide body is arranged at the bottom of the movable valve, a gap is formed between the movable valve and the flow guide body, the flow guide body is provided with a first channel, a second channel is arranged between the flow guide body and the valve. The pressure balancer for the gas pressure regulator can eliminate the influence of gas pressure of the gas inlet on the pressure regulating performance and improve the pressure regulating capacity.
Description
Technical Field
The utility model belongs to the technical field of gas transmission and distribution equipment, especially, relate to a pressure balancer for gas pressure regulator.
Background
The gas pressure regulator is specially suitable for gas transmission and distribution system as gas pressure regulating equipment for regulating pressure and stabilizing pressure, and is widely applied to gas transmission and distribution engineering. The pressure regulating device has the function of automatically regulating the pressure of the gas outlet, so that the gas outlet is stabilized in a certain pressure range, the pressure value required by a user is met, and the use requirement is met. The gas pressure regulator used at present structurally comprises a valve body with an air inlet and an air outlet, a valve port and an adjusting diaphragm are arranged in the valve body, a tray, an adjusting spring and an adjusting nut are arranged on the upper portion of the adjusting diaphragm, the lower portion of the adjusting diaphragm is connected with a valve rod through a lever connecting mechanism, and a movable valve matched with the valve port is arranged at the bottom end of the valve rod. When the gas valve is used, the elasticity of the adjusting spring is set by screwing the adjusting nut according to the set gas flow, so that a certain gap is formed between the valve port and the movable valve. When the pressure regulator works normally, fuel gas enters the valve body from the gas inlet and flows out from the gas outlet after a gap exists between the valve port and the movable valve. At the moment, the force of the pressure of the air outlet acting on the bottom surface of the regulating diaphragm and the force of the regulating spring acting on the top surface of the regulating diaphragm reach balance, the valve rod is static, and a gap exists between the valve port and the movable valve and the valve is in a normal opening state. When the pressure of the air outlet rises, the force of the pressure of the air outlet on the bottom surface of the adjusting diaphragm is larger than the force of the adjusting spring on the top surface of the adjusting diaphragm, the adjusting diaphragm drives the tray to move upwards to compress the adjusting spring, the tray moves upwards to drive the valve rod to move downwards through the lever connecting mechanism, the valve rod drives the valve to move downwards, the gap between the valve and the valve port is reduced, the gas flow through the gap between the valve port and the valve is reduced, the pressure of the air outlet is reduced and the pressure of the air outlet is restored to a normal value, and therefore normal air supply is maintained. When the pressure of the air outlet is reduced, the force of the pressure of the air outlet acting on the bottom surface of the adjusting diaphragm is smaller than the force of the adjusting spring acting on the top surface of the adjusting diaphragm, the adjusting spring extends to push the adjusting diaphragm to drive the tray to move downwards, the tray moves downwards to drive the valve rod to move upwards through the lever connecting mechanism, the valve rod drives the valve to move upwards, the gap between the valve and the valve port is increased, the gas flow through the gap between the valve port and the valve is increased, the pressure of the air outlet is increased and recovered to a normal value, and therefore normal air supply is maintained. According to the gas pressure regulator, the pressure of the gas inlet has certain acting force on the movable valve, and the pressure regulating performance is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that a pressure balancer for gas pressure regulator can eliminate the acting force of air inlet pressure on the movable valve and improve the pressure regulating effect.
In order to solve the above problem, the utility model adopts the technical scheme that: the valve comprises a valve port and an adjusting diaphragm, wherein the adjusting diaphragm is connected with a valve rod through a lever connecting structure, a movable valve matched with the valve port is arranged at the bottom end of the valve rod, a balancer shell with a built-in boss is arranged outside the valve rod and the movable valve, a balance membrane, a pressure plate and a conductor are arranged in the balancer shell, the inner side of the balance membrane is arranged between the pressure plate and the movable valve, the outer side of the balance membrane is arranged between the conductor and the boss, a balance cavity is formed between the balance membrane, the pressure plate and the conductor, a flow guide body is arranged at the bottom of the movable valve, a gap is formed between the movable valve and the flow guide body, a first channel is arranged on the flow guide body, a second channel is arranged between the flow guide body and the valve rod, a third channel is arranged on the valve rod, a fourth channel is arranged on the pressure plate, and a third sealing ring is arranged between the valve rod and the conductor.
The additional technical characteristics are as follows: the diameter of the balance cavity is matched with that of the valve port.
The utility model provides a when pressure balancer for gas regulator uses, the gas of air inlet reachs baffle department by the valve port, by clearance between loose valve and the baffle, reachs balanced chamber through the fourth passageway of second passageway, the third passageway of valve rod, pressure disk between first passageway on the baffle, baffle and the valve rod. At the moment, the gas of the gas inlet exerts upward force on the movable valve through the valve port, the gas in the balance cavity exerts downward force on the movable valve through the balance membrane, and the gas and the movable valve are offset, so that the influence of the gas pressure of the gas inlet on the pressure regulating performance is eliminated, the stability of the gas pressure of the gas outlet is improved, and the flow capacity of the pressure regulator is enlarged. The diameter of the balance cavity is matched with that of the valve port, upward force is applied to the movable valve by the valve port by gas of the gas inlet, downward force is applied to the movable valve by the gas in the balance cavity through the balance film, the upward force is equal to that of the gas in the balance cavity, acting force of gas pressure of the gas inlet on the movable valve is zero, and the effect is optimal.
Drawings
Fig. 1 is a schematic structural view of the pressure balancer for a gas pressure regulator of the present invention.
Detailed Description
The structure and the operation principle of the pressure balancer for the gas pressure regulator according to the present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, the pressure balancer for the gas pressure regulator of the utility model comprises a valve port 1 and a regulating diaphragm 2, the regulating diaphragm 2 is connected with a valve rod 4 through a lever connecting structure 3, a valve 5 matched with the valve port 1 is arranged at the bottom end of the valve rod 4, a balancer housing 7 with a boss 6 arranged inside is arranged outside the valve rod 4 and the valve 5, a balancing membrane 8, a pressure plate 9 and a conductor 10 are arranged in the balancer housing 7, the inner side of the balancing membrane 8 is arranged between the pressure plate 9 and the valve 5, the outer side of the balancing membrane 8 is arranged between the conductor 10 and the boss 6, a balancing cavity 11 is formed among the balancing membrane 8, the pressure plate 9 and the conductor 10, a flow guide body 12 is arranged at the bottom of the valve 5, a gap 13 is arranged between the valve 5 and the flow guide body 12, the flow guide body 12 is provided with a first channel 14, a second channel 15 is arranged between the flow, the pressure plate 9 is provided with a fourth channel 17, the top of the valve rod 4 is provided with a spring 18 and a pressing nut 19, a first sealing ring 20 is arranged between the balancer housing 7 and the movable valve 5, a second sealing ring 21 is arranged between the balancer housing 7 and the conductor 10, a third sealing ring 22 is arranged between the valve rod 4 and the conductor 10, and the diameter of the balance cavity 11 is matched with that of the valve port 1.
The utility model provides a when pressure balancer for gas regulator uses, the gas of air inlet reachs guide body 12 department by valve port 1, by clearance 13 between loose valve 5 and the guide body 12, second passageway 15, valve rod 4's third passageway 16, 9 fourth passageways 17 of pressure disk between first passageway 14 on guide body 12, guide body 12 and the valve rod 4 reachs balanced chamber 11. At this moment, the gas of air inlet exerts ascending power to the movable valve 5 by valve port 1, and the gas in the balanced chamber 11 passes through balanced membrane 8 and exerts decurrent power to the movable valve 5, and both counterbalance to eliminate the influence of air inlet gas pressure to the pressure regulating performance, improve the stability of gas pressure of gas outlet, enlarge the flow capacity of voltage regulator. The diameter of the balance cavity 11 is matched with that of the valve port 1, upward force is applied to the movable valve 5 by the valve port 1 by gas in the gas inlet, the downward force is applied to the movable valve 5 by the gas in the balance cavity 11 through the balance film 8, the acting force of gas pressure of the gas inlet on the movable valve 5 is zero, and the effect is optimal.
The utility model provides a pressure balancer for gas regulator is not only limited to above-mentioned structure, as long as adopted the utility model discloses various improvements that the method design and technical scheme go on, or not improve will the utility model discloses a design and technical scheme directly are applied to other occasions, all are in the utility model discloses a within range.
Claims (2)
1. The utility model provides a pressure balancer for gas regulator, includes valve port, regulation diaphragm, and the regulation diaphragm is connected with the valve rod through lever connection structure, and the valve rod bottom is provided with and valve port assorted loose valve, its characterized in that: the valve rod and the movable valve are provided with a balancer shell with a built-in boss at the outer side, a balancing film, a pressure plate and a conductor are arranged in the balancer shell, the inner side of the balancing film is arranged between the pressure plate and the movable valve, the outer side of the balancing film is arranged between the conductor and the boss, a balancing cavity is formed between the balancing film, the pressure plate and the conductor, a flow guide body is arranged at the bottom of the movable valve, a gap exists between the movable valve and the flow guide body, the flow guide body is provided with a first channel, a second channel is arranged between the flow guide body and the valve rod, the valve rod is provided with a third channel, the pressure plate is provided with a fourth channel, a spring and a pressing nut are arranged at the top of the valve rod, a first sealing ring is arranged between the balancer.
2. The pressure balancer as claimed in claim 1, wherein the pressure balancer further comprises: the diameter of the balance cavity is matched with that of the valve port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920689773.3U CN209762358U (en) | 2019-05-11 | 2019-05-11 | Pressure balancer for gas pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920689773.3U CN209762358U (en) | 2019-05-11 | 2019-05-11 | Pressure balancer for gas pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209762358U true CN209762358U (en) | 2019-12-10 |
Family
ID=68761401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920689773.3U Active CN209762358U (en) | 2019-05-11 | 2019-05-11 | Pressure balancer for gas pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209762358U (en) |
-
2019
- 2019-05-11 CN CN201920689773.3U patent/CN209762358U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 053100 north side of Zhonghua East Street, Zaoqiang County, Hengshui City, Hebei Province Patentee after: Hebei rising gas equipment Limited by Share Ltd Address before: 053100 north side of Industrial Street, Zaoqiang County, Hebei, Hengshui Patentee before: Hebei rising gas equipment Limited by Share Ltd |