阅读说明：本技术 一种瓶装液化石油气调压器 (Pressure regulator for bottled liquefied petroleum gas ) 是由 李曰兵 张伟涛 高增梁 唐帅 于 2020-04-29 设计创作，主要内容包括：本发明公开了一种瓶装液化石油气调压器,包括阀体、设置在阀体上的阀盖、设置在阀体一侧的进气道及设置在阀体另一侧的出气道,其特征在于,所述的阀盖上设有呼吸孔,所述阀体内部设有橡胶薄膜及隔板,并通过橡胶薄膜及隔板将调压器内部分为上腔室、中腔室及下腔室,所述中腔室与出气道通过压力信号管相连通,从而将出口压力传递至中腔室,以反馈出口压力大小；本发明的有益效果是：通过在调压器腔室内设置橡胶薄膜及隔板,从而将调压器腔室内的空间分成三个腔室,调压器出气道上设有压力信号管将出口压力传递至中腔室,达到反馈出口压力大小的目的,同时压力信号管的开口背离燃气流动方向,能够防止动压进入,以提高调压精度。(The invention discloses a pressure regulator for bottled liquefied petroleum gas, which comprises a valve body, a valve cover arranged on the valve body, an air inlet channel arranged on one side of the valve body and an air outlet channel arranged on the other side of the valve body, and is characterized in that a breathing hole is formed in the valve cover, a rubber film and a partition plate are arranged in the valve body, the interior of the pressure regulator is divided into an upper chamber, a middle chamber and a lower chamber through the rubber film and the partition plate, and the middle chamber is communicated with the air outlet channel through a pressure signal pipe, so that outlet pressure is transmitted to the middle chamber to feed back the outlet pressure; the invention has the beneficial effects that: through set up rubber film and baffle in the voltage regulator cavity to with the space in the voltage regulator cavity divide into three cavity, be equipped with pressure signal pipe on the voltage regulator gas outlet channel and transmit outlet pressure to well cavity, reach the purpose of feedback outlet pressure size, the opening of pressure signal pipe deviates from the gas flow direction simultaneously, can prevent that the dynamic pressure from getting into, in order to improve the pressure regulating precision.)

1. The utility model provides a bottled liquefied petroleum gas pressure regulator, includes valve body (2), sets up valve gap (6) on valve body (2), sets up intake duct (17) and ventiduct (10) of setting at valve body (2) opposite side in valve body (2) one side, its characterized in that, valve gap (6) on be equipped with breathing hole (5), valve body (2) inside is equipped with rubber film (34) and baffle (8) to divide into cavity (4), well cavity (7) and cavity of resorption (11) with the voltage regulator inside through rubber film (34) and baffle (8), well cavity (7) are linked together through pressure signal pipe (9) with ventiduct (10), thereby transmit outlet pressure to well cavity (7) with feedback outlet pressure size.

2. The pressure regulator for the bottled liquefied petroleum gas according to claim 1, further comprising a pressure regulating device and a connecting device, wherein the connecting device is fixedly connected with the pressure regulating device, and the pressure regulating device controls the pressure or flow of the air inlet channel through the connecting device.

3. The bottled liquefied petroleum gas pressure regulator according to claim 2, wherein the pressure regulating device comprises a membrane pressing plate (33), a pressure regulating spring (35), a regulating screw (36) and a spring pressing cover (37), the membrane pressing plate (33) is arranged on the top of the rubber membrane (34), the pressure regulating spring (35) is arranged on the membrane pressing plate (33), the spring pressing cover (37) is arranged on the top of the pressure regulating spring (35), the regulating screw (36) is arranged on the valve cover (6) and is pressed on the spring pressing cover (37).

4. The bottled liquefied petroleum gas pressure regulator according to claim 2, wherein the connecting device comprises a lever (131), a pressure regulating pull rod (132), a locking nut (133), a positioning pin (134) and a positioning seat (135), the pressure regulating nozzle (31) is arranged at the end of the air inlet (17), the pressure regulating pull rod (132) is arranged on the film pressing plate (33), the rubber film (34) and the partition plate (8) in a penetrating manner and fixed on the film pressing plate (33) through the locking nut (133), the lever (131) is movably arranged on the positioning seat (135) through the positioning pin (134), one end of the lever (131) is connected with the bottom of the pressure regulating pull rod (132), and the other end of the lever is provided with a valve gasket (32) and the opening degree of the pressure regulating nozzle (31) is controlled through the valve gasket (32).

5. A pressure regulator for bottled liquefied petroleum gas according to claim 4, wherein a partition sealing ring (12) is provided between the partition (8) and the pressure regulating pull rod (132), and the partition sealing ring (12) is provided in a partition sealing ring groove of the partition (8).

6. A pressure regulator for bottled liquefied petroleum gas according to claim 1, wherein an air inlet screw joint (15) is arranged at the outer side of the air inlet channel (17) in a penetrating way, and the air inlet screw joint (15) is provided with a hand wheel (14).

7. A pressure regulator for bottled liquefied petroleum gas according to claim 1, wherein the inlet port (17) is provided with an inlet joint sealing ring (16) at the outer side and a filter screen (18) at the inner side.

8. A pressure regulator for bottled liquefied petroleum gas according to claim 1, wherein said pressure signal pipe (9) is extended into the inside of said gas outlet passage (10) and the opening direction is deviated from the gas flowing direction.

Technical Field

The invention relates to the technical field of pressure regulators, in particular to a pressure regulator for bottled liquefied petroleum gas.

Background

The traditional energy consumption of petroleum, coal and the like seriously damages the environment, and with the increasing importance of our country on environmental protection and high-efficiency and safe utilization of energy, clean energy such as liquefied petroleum gas, natural gas and the like gradually replaces the traditional energy, thereby promoting the rapid increase of the gas consumption. At present, the gas supply mainly depends on two modes of pipeline transportation and liquefied gas steel cylinder, and a pressure regulator is indispensable as a necessary component equipped for the liquefied gas steel cylinder, and the main function of the pressure regulator is to realize pressure reduction and pressure stabilization and ensure the safe and efficient use of liquefied gas.

Although the technology of the cylinder liquefied petroleum gas pressure regulator is well developed, it still has its disadvantages. The cavity of the pressure regulator of the existing bottled liquefied petroleum gas is divided into an upper cavity and a lower cavity by a rubber film, the fuel gas flowing out of a pressure regulating nozzle flows through the rubber film, the dynamic pressure of the fuel gas is converted into static pressure to act on the rubber film, and along with the change of the flow of the pressure regulator, the force acting on the rubber film also changes along with the change of the flow of the pressure regulator, so that the outlet pressure of the pressure regulator changes, and the set pressure regulating precision cannot be achieved. Therefore, it is necessary to improve the pressure regulator of the bottled liquefied petroleum gas to improve the pressure regulating performance.

Disclosure of Invention

The invention discloses a pressure regulator for bottled liquefied petroleum gas, aiming at solving the problems that the pressure of an outlet is fluctuated due to dynamic pressure effect, the pressure regulating precision cannot be met and the like so as to improve the pressure regulating performance of the pressure regulator.

The technical scheme of the invention is as follows:

the utility model provides a bottled liquefied petroleum gas pressure regulator, includes the valve body, sets up valve gap on the valve body, sets up the intake duct in valve body one side and sets up the ventiduct at the valve body opposite side, its characterized in that, the valve gap on be equipped with the breather hole, inside rubber film and the baffle of being equipped with of valve body to divide into cavity, well cavity and cavity down with the pressure regulator inside through rubber film and baffle, well cavity is linked together through the pressure signal pipe with the ventiduct, thereby transmits outlet pressure to well cavity, with feedback outlet pressure size.

The pressure regulator for the bottled liquefied petroleum gas is characterized by further comprising a pressure regulating device and a connecting device, wherein the connecting device is fixedly connected with the pressure regulating device, and the pressure regulating device controls the pressure or the flow of an air inlet channel through the connecting device.

The utility model provides a bottled liquefied petroleum gas voltage regulator, a serial communication port, the regulator includes film clamp plate, pressure regulating spring, adjusting screw and spring gland, film clamp plate sets up at the rubber film top, the pressure regulating spring sets up on film clamp plate, spring gland sets up at the pressure regulating spring top, adjusting screw sets up on the valve gap to the pressure is established on the spring gland.

The utility model provides a bottled liquefied petroleum gas pressure regulator, a serial communication port, connecting device includes lever, pressure regulating pull rod, lock nut, locating pin and positioning seat, the intake duct end sets up pressure regulating mouth, the pressure regulating pull rod is worn to establish on film clamp plate, rubber film and baffle to fix on film clamp plate through lock nut, the lever passes through the locating pin activity and sets up on the positioning seat, and lever one end links to each other with pressure regulating pull rod bottom, and the other end is equipped with the valve gasket to control the aperture of pressure regulating mouth through the valve gasket.

The pressure regulator for the bottled liquefied petroleum gas is characterized in that a partition sealing ring is arranged between the partition plate and the pressure regulating pull rod, and the partition sealing ring is arranged in a groove of the partition plate sealing ring of the partition plate.

The pressure regulator for the bottled liquefied petroleum gas is characterized in that an air inlet threaded joint is arranged on the outer side of the air inlet channel in a penetrating mode, and the air inlet threaded joint is provided with a hand wheel.

The pressure regulator for bottled liquefied petroleum gas is characterized in that an inlet joint sealing ring is arranged on the outer side of the position of the inlet channel joint, and a filter screen is arranged on the inner side of the inlet channel joint.

The pressure regulator for the bottled liquefied petroleum gas is characterized in that the pressure signal pipe extends into the gas outlet channel, and the opening direction deviates from the flowing direction of the gas.

The invention has the beneficial effects that: through set up rubber film and baffle in the voltage regulator cavity to with the space in the voltage regulator cavity divide into three cavity, be equipped with pressure signal pipe on the voltage regulator gas outlet channel and transmit outlet pressure to well cavity, reach the purpose of feedback outlet pressure size, the opening of pressure signal pipe deviates from the gas flow direction simultaneously, can prevent that the dynamic pressure from getting into, in order to improve the pressure regulating precision.

Drawings

FIG. 1 is a schematic structural diagram of a pressure regulator for bottled liquefied petroleum gas;

in the figure: 1-a filter screen; 2-a valve body; 31-pressure regulating nozzle; 32-a valve pad; 33-a film platen; 34-a rubber film; 35-pressure regulating spring; 36-an adjusting screw; 37-spring gland; 4-an upper chamber; 5-breathing hole; 6-valve cover; 7-a middle chamber; 8-a separator; 9-a pressure signal pipe; 10-an air outlet channel; 11-a lower chamber; 12-a diaphragm seal ring; 131-a lever; 132-a pressure regulating pull rod; 133-a locking nut; 134-locating pins; 135-positioning seat; 14-a hand wheel; 15-air inlet nipple; 16-inlet fitting seal ring; 17-air inlet channel.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1, a pressure regulator for bottled liquefied petroleum gas comprises a valve body 2, a pressure regulating device, a valve cover 6, a partition plate 8, a pressure signal pipe 9, an air outlet channel 10, a connecting device, an air inlet channel 17 and a rubber film 34.

The valve cover 6 and the air inlet channel 17 on the valve body 2 are arranged on one side of the valve body 2, the air outlet channel 10 is arranged on the other side of the valve body 2, the valve cover 6 is provided with a breathing hole 5, the inside of the valve body 2 is provided with a rubber film 34 and a partition plate 8, and the inside of the pressure regulator is divided into an upper chamber 4, a middle chamber 7 and a lower chamber 11 through the rubber film 34 and the partition plate 8, wherein the rubber film 34 is arranged on the valve body 2 and is pressed and fixed through the valve cover 6, and the partition plate 8 and the valve body 2 are fixedly connected in a; the middle chamber 7 is communicated with the air outlet channel through a pressure signal pipe 9, a pressure balancing device is arranged on the rubber film 34, and the pressure or the flow of the air inlet channel is controlled through the pressure balancing device, so that the automatic pressure regulation is realized; the upper chamber 4 is communicated with the outside atmosphere through a breathing hole 5, the middle chamber 7 is communicated with an air outlet channel 10 through a pressure signal pipe 9, and the lower chamber 11 is communicated with an air inlet channel 17 and an air outlet channel 10; the partition plate 8 separates the middle chamber 7 from the lower chamber 11, so that the gas flowing out of the pressure regulating nozzle can not directly act on the rubber film 34, and the influence of outlet pressure fluctuation caused by the fact that dynamic pressure is converted into static pressure to act on the rubber film is avoided.

Pressure balancing unit includes pressure regulating device and connecting device in this embodiment, connecting device and pressure regulating device fixed connection, pressure regulating device pass through connecting device and control the pressure of intake duct. The pressure regulating device comprises a film pressing plate 33, a pressure regulating spring 35, a regulating screw 36 and a spring gland 37, wherein the film pressing plate 33 is arranged at the top of a rubber film 34, the pressure regulating spring 35 is arranged on the film pressing plate 33, the spring gland 37 is arranged at the top of the pressure regulating spring 35, and the regulating screw 36 is arranged on the valve cover 6 and is pressed on the spring gland 37. Connecting device includes lever 131, pressure regulating pull rod 132, lock nut 133, locating pin 134 and positioning seat 135, intake duct 17 end is equipped with pressure regulating mouth 31 (pressure regulating mouth 31 is intake duct 17 end opening), pressure regulating pull rod 132 wears to establish on film clamp plate 33, rubber film 34 and baffle 8, and fix on film clamp plate 33 through lock nut 133, lever 131 passes through the activity of locating pin 134 and sets up on positioning seat 135, and lever 131 one end links to each other with pressure regulating pull rod 132 bottom, the other end is equipped with valve pad 32, and control pressure regulating mouth 31 through valve pad 32.

In the embodiment, the partition plate 8 is circular, the center of the partition plate is provided with a circular hole, and the aperture of the circular hole is larger than the maximum diameter of the pressure regulating pull rod 132, so that the assembly is convenient; a partition sealing ring 12 is arranged between the partition plate 8 and the pressure regulating pull rod 132, and the partition sealing ring 12 is arranged in a partition sealing ring groove of the partition plate 8, so as to prevent the gas from leaking from the lower chamber 11 to the middle chamber 7.

Inside pressure signal pipe 9 stretched into gas outlet channel 10 in this embodiment, and the opening direction deviates from the gas flow direction, was equipped with pressure signal pipe 9 on pressure regulator gas outlet channel 10 and transmits outlet pressure to well cavity 7, reached the purpose of feedback outlet pressure size, and the opening of pressure signal pipe 9 deviates from the gas flow direction simultaneously, can prevent that the dynamic pressure from getting into, can avoid the dynamic pressure to get into and influence the pressure regulating precision.

In this embodiment, an air inlet threaded joint 15 penetrates through the outer side of an air inlet 17, and the air inlet threaded joint 15 is provided with a hand wheel 14; an inlet joint sealing ring 16 is arranged on the outer side of the position of the inlet 17 joint, and a filter screen 18 is arranged on the inner side.

The invention relates to a pressure regulator for bottled liquefied petroleum gas, which realizes the regulation of outlet pressure by using the throttling principle. The main action process is as follows: when the angle valve of the liquefied petroleum gas steel cylinder is opened, gas enters the pressure regulator from the gas inlet channel 17 and flows through the pressure regulating nozzle 31, the valve pad 32 is opened under the action of pressure, the gas flows into the lower cavity 11 of the pressure regulator and flows out of the pressure regulator from the gas outlet channel 10, and a part of the gas flows into the middle cavity 7 below the rubber film 34 of the pressure regulator from the pressure signal tube 9. When the inlet pressure is too large or the flow is too small, the outlet pressure is larger than a set value, the outlet pressure is transmitted to the middle chamber 7 through the pressure signal pipe 9, the rubber film 34 protrudes upwards, the volume of the upper chamber 4 is gradually reduced, when the pressure of the upper chamber 4 is larger than the external atmospheric pressure, air is discharged from the breathing hole 5, the valve cushion 32 moves downwards and is gradually closed under the combined action of the pressure regulating pull rod 132 and the lever 131 while the rubber film 34 protrudes upwards, the outlet pressure is gradually reduced and reaches balance, and the gas pressure is maintained in a set pressure regulating range; when the inlet pressure is too low or the flow is too high, the outlet pressure is smaller than a set value, the outlet pressure is transmitted to the middle chamber 7 through the pressure signal pipe 9, the rubber film 34 is recessed downwards, the volume of the upper chamber 4 is gradually increased, when the pressure of the upper chamber 4 is smaller than the external atmospheric pressure, air enters the upper chamber 4 through the breathing hole 5, the valve cushion 32 moves upwards and is gradually opened under the combined action of the pressure regulating pull rod 132 and the lever 131 while the rubber film 34 is recessed downwards, the outlet pressure is gradually increased to achieve new balance, and the gas pressure is maintained within a set pressure regulating range.