CN204062067U - A kind of leading type pressure regulator valve - Google Patents
A kind of leading type pressure regulator valve Download PDFInfo
- Publication number
- CN204062067U CN204062067U CN201420316571.1U CN201420316571U CN204062067U CN 204062067 U CN204062067 U CN 204062067U CN 201420316571 U CN201420316571 U CN 201420316571U CN 204062067 U CN204062067 U CN 204062067U
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- valve body
- balance
- spool
- air outlet
- pressure
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/365—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a diaphragm
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The utility model provides a kind of leading type pressure regulator valve, belongs to field of mechanical technique.It solve the problem that existing pressure regulator valve degree of regulation is not high.This leading type pressure regulator valve comprises the balance valve body that two ends are respectively suction port and air outlet, spool one is provided with between suction port and air outlet, spool one upper, lower two ends are connected to diaphragm one and balance spring, diaphragm one forms counter balance pocket with the upper end of balance valve body, balance valve body is connected with pressure regulation valve body, pressure regulation valve body is provided with the inlet hole be connected with suction port and the air outlet hole be connected with counter balance pocket, the spool two that both can be communicated or cut off is provided with between inlet hole with air outlet hole, spool two is connected with pressure adjusting spring one near one end of inlet hole, spool two is connected with diaphragm two and pressure adjusting spring two near one end of air outlet hole, when the elastic force effect of pressure adjusting spring two be greater than pressure adjusting spring for the moment inlet hole be connected with air outlet hole.It is high that this leading type pressure regulator valve has degree of regulation, the advantages such as compact structure.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of pressure regulator valve, particularly relates to a kind of leading type pressure regulator valve.
Background technique
Piloted reducer is the elastic force replacing traditional pressure adjusting spring with the active force of pressurized gas itself, to control, a kind of reduction valve of stabilization of export hydrodynamic pressure.The advantage of piloted reducer is to avoid the weakness that in traditional pressure regulator valve, pressure adjusting spring self character and controlled plant have nothing to do, the pressure difference utilizing controlled plant self to flow through the front and back ends of reduction valve realizes the self-control of controlled plant, therefore feed back sensitive, the precision of voltage regulation is high, simultaneously the adaptability of flow, pressure change is all higher.
A kind of pressure regulator valve structure [application number: 201220275820.8 that such as Chinese patent literature data openly proposes; Notification number: CN202746696U], comprise valve body, be connected to the protecgulum of valve body front end, after to be rotatably connected covering in valve rear end, form suction port in described valve body, air outlet and valve port, described suction port is communicated with by valve port with air outlet, described valve port place is provided with spool, is provided with spring between described spool and bonnet; Diaphragm is provided with between described valve body and protecgulum, diaphragm is fixed by diaphragm seat, diaphragm seat is connected with spool by valve rod, valve pocket is formed between described diaphragm and protecgulum, control valve device is provided with outside described protecgulum, described air outlet is communicated with valve pocket by control valve device, described control valve device comprises regulation valve body and regulating wheel, adjustment valve pocket is formed in regulation valve body, regulate and removablely in valve pocket be provided with piston, be provided with Regulation spring between described regulating wheel and piston, described air outlet is communicated with adjustment valve pocket, and described adjustment valve pocket is communicated with valve pocket.This pressure regulator valve structure is when only in air outlet, gas pressure is greater than the active force of Regulation spring, and gas just can via through holes one, and through hole two and through hole four enter adjustment valve pocket.But because this reduction valve directly enters into pressure regulation valve pocket by through hole four, and only have when the pressure in through hole four is greater than Regulation spring, gas just can enter into and regulate in valve pocket, this just makes this pressure regulator valve structure cannot make correct judgement to the change of some tiny pressure reduction, causes degree of regulation not high.
Summary of the invention
The purpose of this utility model is the problems referred to above existed for prior art, proposes a kind of degree of regulation high, the leading type pressure regulator valve of compact structure.
The purpose of this utility model realizes by following technical proposal: a kind of leading type pressure regulator valve, comprise the balance valve body that two ends are respectively suction port and air outlet, spool one is provided with between described suction port and air outlet, described spool one upper, lower two ends are connected to diaphragm one and balance spring, described diaphragm one forms counter balance pocket with the upper end of balance valve body, it is characterized in that, described balance valve body is connected with pressure regulation valve body, described pressure regulation valve body is provided with the inlet hole be connected with suction port and the air outlet hole be connected with counter balance pocket, described inlet hole be provided with the spool two that both can be communicated or cut off between air outlet hole, described spool two is connected with pressure adjusting spring one near one end of inlet hole, described spool two is connected with diaphragm two and pressure adjusting spring two near one end of air outlet hole, when the elastic force effect of pressure adjusting spring two is greater than the elastic force effect of pressure adjusting spring one, inlet hole is connected with air outlet hole.
This leading type pressure regulator valve is when original state, and spool one and spool two are all in closed state; When the elastic force effect of pressure adjusting spring two is greater than the elastic force effect of pressure adjusting spring one, spool two is moved to the left, inlet hole communicates with air outlet hole, now, because pressure in counter balance pocket is less than inlet hole pressure, gas is flowed into from inlet hole, through air outlet hole, flow in counter balance pocket, make the air pressure in counter balance pocket become large, diaphragm one is under pressure and spool one is moved down, and makes to be communicated with between suction port and air outlet.Now, balance spring, pressure adjusting spring one are all in compressive state and pressure regulation valve inner and balance valve inner are all in state of equilibrium.
During work, gas flows into from suction port, when the elastic force sum of gas pressure and pressure adjusting spring one is greater than the elastic force of pressure adjusting spring two, portion gas can flow into inlet hole, flow in counter balance pocket through air outlet hole, cause the gas pressure intensity in counter balance pocket to become large, and now, spool two moves right, and pressure adjusting spring two compresses to the right.Remaining gas flows out from air outlet through spool one, when residual gas, to the buoyancy of spool one and balance spring, the elastic force sum to spool one is less than balance chamber air to the pressure of diaphragm one, then spool one moves, the aperture of the passage of connection air outlet and suction port is reduced; Otherwise when to the buoyancy of spool one and balance spring, the elastic force sum to spool one is less than the balance pressure of chamber air to diaphragm one to residual gas, then spool one moves down, and makes the aperture of the passage of connection air outlet and suction port increase.
When the elastic force sum of gas pressure and pressure adjusting spring a pair spool two is less than or equal to the elastic force of pressure adjusting spring two pairs of spools two, the gas entered from suction port is then without inlet hole, but directly flow out from air outlet, due to gas, to the buoyancy of spool one and balance spring, the elastic force sum to spool one is less than the pressure in counter balance pocket, spool one moves down, and the aperture of the passage of connection air outlet and suction port is increased.
When this leading type pressure regulator valve works, spool two has the trend towards the position movement of spool two when air outlet hole communicates for the first time with inlet hole all the time under the effect of pressure adjusting spring two, and when gas enters into pressure regulation valve body by inlet hole, spool two moves right, pressure adjusting spring two compresses to the right, and the passage aperture connecting inlet hole and air outlet reduces; Otherwise spool is moved to the left under the effect of pressure adjusting spring.
In above-mentioned leading type pressure regulator valve, described inlet hole be provided with pressure modulating opening between air outlet hole and both are connected by pressure modulating opening, described pressure modulating opening place is provided with the valve rod two be connected with spool two, described diaphragm two and pressure adjusting spring two are all connected to the end of valve rod two, and the surface of described spool two has the sealing gasket that can be sealed when spool two leans with pressure modulating opening.
When pressure regulator valve is in original state, spool two is resisted against on pressure modulating opening and is sealed by pressure modulating opening, and when the elastic force of the pressure adjusting spring two being connected to valve rod two end is greater than the elastic force effect of pressure adjusting spring one, valve rod two is moved to the left, be with movable valve plug two to be moved to the left simultaneously, pressure modulating opening is opened.When there being gas to contribute to pressure regulation valve body by inlet hole, spool two moves right, and impels valve rod two to move right, and pressure adjusting spring two is compressed to the right, thus the aperture between spool and pressure modulating opening is reduced; Otherwise valve rod two takes spool two to and is moved to the left under the elastic force effect of Compress Spring two, increase the aperture between spool and pressure modulating opening, and sealing gasket is set on the surface of spool two, make to be connected between spool with pressure modulating opening more to seal.
In above-mentioned leading type pressure regulator valve, the valve body three be connected about described pressure regulation valve body comprises and valve body four, described inlet hole and air outlet hole are all arranged at the bottom of valve body three, the edge of described diaphragm two is clamped between valve body three and valve body four, is equipped with O RunddichtringO between the edge of described diaphragm two and valve body three and valve body four.Pressure adjusting spring two is positioned at valve body four, O RunddichtringO is equipped with between the edge of diaphragm two and valve body three and valve body four, prevent from entering in valve body four from the inlet hole gas flow in valve body three, affect the normal work of pressure adjusting spring, and then affect the regulation precision of this leading type pressure regulator valve.
In above-mentioned leading type pressure regulator valve, described valve body three is connected to the top of balance valve body, described inlet hole and air outlet hole are all arranged at the bottom of valve body three, the inlet of described balance valve body is provided with the pressure guide hole be connected with inlet hole, the top of described balance valve body is provided with attachment hole, described air outlet hole is connected by attachment hole with the counter balance pocket of balance valve body, and the joint between described valve body three and balance valve body is provided with pad.
During the work of this leading type pressure regulator valve, when gas pressure and pressure adjusting spring one elastic force sum are greater than the elastic force of pressure adjusting spring two, portion gas flow in valve body three by pressure guide hole, inlet hole, pass through pressure modulating opening again, then through air outlet hole and attachment hole, finally flow in counter balance pocket, control moving up and down of spool one by diaphragm one.And the joint between valve body three and balance valve body is provided with pad, is used for preventing gas from leaking in flow process, affects the regulation precision of this pressure regulator valve.
In above-mentioned leading type pressure regulator valve, described valve body four is provided with the through hole just right with diaphragm two, described through hole is connected with thread spindle, and the inner of described thread spindle is positioned at valve body four and within it end is socketed with axle sleeve, and the outer end of described thread spindle has been threaded connection adjustment screw.
Pressure adjusting spring two one end is connected to the end of valve rod two, the other end is socketed on thread spindle, and by being rotatably connected on the adjustment screw of thread spindle outer end, thread spindle is rotated to left movement, make pressure adjusting spring two pressurized and be resisted against on valve rod two, valve rod two is subject to the elastic force of spring and to left movement, pressure modulating opening is opened.Carry out the aperture size between regulating valve stem two and pressure modulating opening by rotation adjustment screw, set the size of the adjustment pressure of this pressure regulator valve, there is structure simple, advantage easy to use.
In above-mentioned leading type pressure regulator valve, described balance valve body comprises the valve body one and valve body two that are connected up and down, the edge of described diaphragm one is clamped between valve body one and the valve body two and edge of diaphragm one and valve body one and valve body two and is equipped with O RunddichtringO, and described diaphragm one forms above-mentioned counter balance pocket with valve body two.Valve body one is positioned at valve body two below and pressure regulation valve body is connected to valve body two top, suction port and air outlet are all positioned on valve body one, O RunddichtringO is equipped with between the edge of diaphragm one and valve body one and valve body two, prevent the gas in counter balance pocket from flowing in valve body one, affect the normal work of balance spring, and then affect the regulation precision of this leading type pressure regulator valve.
In above-mentioned leading type pressure regulator valve, balance port is provided with between the suction port of described balance valve body and air outlet, described balance port place is provided with the valve rod one be connected with spool one, the end of valve rod one is fixed at the center of described diaphragm one, and the surface of described spool one has the sealing gasket sealed when spool one leans with balance port.
This leading type pressure regulator valve is when original state, and spool one and balance port lean and balance port to be sealed, and suction port and air outlet do not communicate.Rotate adjusting screw, thread spindle is rotated left, and stressed being resisted against on valve rod two of pressure adjusting spring two makes valve rod two be moved to the left, and pressure modulating opening is opened, gas enters from from inlet hole, enter in counter balance pocket from air outlet hole, make the gas pressure in counter balance pocket become large, diaphragm one is stressed to be made valve rod one move down thus spool one is moved down, balance port is opened, suction port and air outlet communicate, and by rotating adjusting screw, set the force value that this pressure regulator valve is initial; When this pressure regulator valve works, when equilibrium valve internal pressure changes, control the aperture size between spool one and balance port by diaphragm one, finally control the size of air outlet internal pressure.
In above-mentioned leading type pressure regulator valve, described equilibrium valve Ligation in vitro has the pressure gauge communicated with the air outlet of balance valve body.By there being the pressure gauge communicated with the air outlet of balance valve body at equilibrium valve Ligation in vitro, enable operator more intuitively this pressure regulator valve whether normally work, and by observing pressure gauge, operator can set the initial pressure value of this pressure regulator valve more exactly by turning adjusting screw.
In above-mentioned leading type pressure regulator valve, described diaphragm one is wavy metal diaphragm with diaphragm two.
Compared with prior art, this leading type pressure regulator valve by being provided with the pressure modulating opening making inlet hole and air outlet hole communicate between inlet hole with air outlet hole, spool two is connected with pressure adjusting spring one near one end of inlet hole, and the other end is connected with valve rod two, the end of valve rod two is connected with diaphragm two and pressure adjusting spring two, the elastic force of pressure adjusting spring two pairs of valve rods two whether is greater than by the elastic force sum of the pressure and pressure adjusting spring a pair spool two that judge suction port, whether the gas controlling to flow into from suction port can flow in counter balance pocket by pressure guide hole, thus control the movement of valve rod one, the pressure of final control air outlet gas.Adopt such design, pressure regulator valve body can be very sensitive the pressure change feeling suction port, thus make corresponding actions to control the pressure of air outlet gas, considerably increase the degree of regulation of this leading type pressure regulator valve, and this leading type pressure regulator valve also has the advantage of compact structure.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of this leading type pressure regulator valve.
Fig. 2 is the left TV structure schematic diagram of this leading type pressure regulator valve.
In figure, 1, balance valve body; 1a, valve body one; 1a1, suction port; 1a2, air outlet; 1b, valve body two; 1c, pressure guide hole; 1d, attachment hole; 2, bottom; 3, plug bolt; 4, balance port; 5, spool one; 6, balance spring; 7, valve rod one; 8, diaphragm one; 9, nut; 10,0 RunddichtringO; 11, counter balance pocket; 12, pressure regulation valve body; 12a, valve body three; 12a1, inlet hole; 12a2, air outlet hole; 12b, valve body four; 12b1, through hole; 13, pad; 14, bottom one; 15, pressure modulating opening; 16, spool two; 17, pressure adjusting spring one; 18, valve rod two; 19, diaphragm two; 20, thread spindle; 21, screw is adjusted; 22, axle sleeve; 23, pressure adjusting spring two; 24, sealing gasket; 25, pressure gauge.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment one
As shown in Figure 1, this leading type pressure regulator valve comprises the balance valve body 1 that two ends are respectively suction port 1a1 and air outlet 1a2, balance valve body 1 is made up of valve body one 1a be connected up and down and valve body two 1b again and valve body one 1a is positioned at below valve body two 1b, in the present embodiment, valve body one 1a and valve body two 1b is bolted.Wherein, have the through hole one communicated with valve body one 1a inside bottom valve body one 1a, through hole one place is provided with the bottom 2 be tightly connected with valve body one 1a, and bottom 2 is also fixed with plug bolt 3, facilitate the dismounting of bottom 2, balance valve body 1 inner body is changed and becomes easier.
In this leading type pressure regulator valve, suction port 1a1 and air outlet 1a2 is all positioned on valve body one 1a, is also provided with balance port 4 between air outlet 1a2 and suction port 1a1, and suction port 1a1 is connected by balance port 4 with air outlet 1a2.Spool 1 is also provided with between suction port 1a1 and air outlet 1a2, when this leading type pressure regulator valve does not work, the outer end of spool 1 and balance port 4 lean and this outer end face has the sealing gasket 24 sealed when spool 1 leans with balance port 4, the inner of spool 1 is connected with balance spring 6, and the other end of balance spring 6 is resisted against on bottom 2.Be provided with sealing gasket 24 at spool 1 and balance port 4 place of leaning, prevent suction port 1a1 and air outlet 1b1 from communicating when spool 1 and balance port 4 lean, affect the setting of this pressure regulator valve initial pressure value.Spool 1 is connected with valve rod 1, and valve rod 1 is straight up through balance port 4.Valve rod 1 is fixed with diaphragm 1 away from one end of spool 1 and the center of diaphragm 1 is fixed on valve rod 1, and in the present embodiment, valve rod 1 to be also threaded nut 9 away from one end of spool 1, and diaphragm 1 is between nut 9 and valve rod 1.The edge of diaphragm 1 to be clamped between valve body one 1a and valve body two 1b and to be equipped with O RunddichtringO 10 between diaphragm 1 and valve body one 1a and valve body two 1b, and forms counter balance pocket 11 between diaphragm 1 and valve body two 1b.Between the edge of diaphragm 1 and valve body one 1a and valve body two 1b, be equipped with O RunddichtringO 10, prevent the gas in counter balance pocket 11 from flowing in valve body one 1a, affect the normal work of balance spring 6, and then affect the regulation precision of this leading type pressure regulator valve.
Valve body two 1b top is connected with pressure regulation valve body 12, and wherein, valve body three 12a that pressure regulation valve body 12 is connected by left and right again and valve body four 12b forms.In the present embodiment, valve body three 12a is connected to the top of valve body two 1b, and the joint between valve body three 12a and valve body two 1b is also provided with pad 13, be used for preventing from leaking in the process of gas flowing between balance valve body 1 and pressure regulation valve body 12, affect the regulation precision of this leading type pressure regulator valve.The bottom of valve body three 12a is also provided with the inlet hole 12a1 be connected with the suction port 1a1 on valve body one 1a and the air outlet hole 12a2 be connected with counter balance pocket 11, the inlet of balance valve body 1 is also provided with the pressure guide hole 1c be connected with inlet hole 12a1, and inlet hole 12a1 to be communicated with suction port 1a1 by pressure guide hole 1c and pressure guide hole 1c is connected with inlet hole 12a1 through valve body one 1a with valve body two 1b.The top of valve body two 1b is also provided with attachment hole 1d and air outlet hole 12a2 is connected by attachment hole 1d with the counter balance pocket 11 of balance valve body 1.
There is bottom valve body three 12a the through hole two communicated with valve body three 12a inside, through hole two place is provided with the bottom 1 be tightly connected with valve body three 12a, bottom 1 is also fixed with plug bolt, facilitates the dismounting of bottom, pressure regulation valve body inner body is changed and becomes easier.Be provided with pressure modulating opening 15 between inlet hole 12a1 on bottom valve body three 12a and air outlet hole 12a2 and be connected by pressure modulating opening 15 between inlet hole 12a1 and air outlet hole 12a2.Spool 2 16 is also provided with between inlet hole 12a1 and air outlet hole 12a2, when this leading type pressure regulator valve does not work, the outer end of spool 2 16 and pressure modulating opening 15 lean and this outer end face has the sealing gasket sealed when spool 2 16 leans with pressure modulating opening 15, the inner of spool 2 16 is connected with pressure adjusting spring 1, and the other end of pressure adjusting spring 1 is resisted against on bottom 14.Spool 2 16 is connected with valve rod 2 18, and valve rod 2 18 is vertically to the right through pressure modulating opening 15.Valve rod 2 18 is fixed with diaphragm 2 19 away from one end of spool 2 16 and the center of diaphragm 2 19 is fixed on valve rod 2 18, in the present embodiment, valve rod 2 18 to be also threaded nut 9 away from one end of spool 2 16, and diaphragm 2 19 is between nut 9 and valve rod 2 18.The edge of diaphragm 2 19 to be clamped between valve body three 12a and valve body four 12b and to be equipped with O RunddichtringO between diaphragm 2 19 and valve body three 12a and valve body four 12b.
Valve body four 12b is provided with the through hole 12b1 just right with diaphragm 2 19, through hole 12b1 place is connected with thread spindle 20, the inner of thread spindle 20 is positioned at valve body four 12b, and valve body four 12b is stretched out and the adjustment screw 21 that has been threaded in outer end, and the inner of thread spindle 20 is also socketed with axle sleeve 22.Valve rod 2 18 is also connected with pressure adjusting spring 2 23 away from one end of spool 2 16, and the other end of pressure adjusting spring 2 23 is socketed on thread spindle 20.
As shown in Figure 2,1 equilibrium valve Ligation in vitro of this leading type pressure regulator valve has the pressure gauge 25 communicated with the air outlet 1a2 of balance valve body 1.By being externally connected with at balance valve body 1 pressure gauge 25 communicated with the air outlet 1a1 balancing valve body 1, enable operator more intuitively this pressure regulator valve whether normally work, and by observing pressure gauge 25, operator can set the initial pressure value of this pressure regulator valve more exactly by turning adjusting screw 21.In the present embodiment, diaphragm 1 and diaphragm 2 19 are wavy metal diaphragm.
During this leading type pressure regulator valve original state, spool 1 and balance port 4 lean and balance port 4 to be sealed, block suction port 1a1 to communicate with air outlet 1a2, spool 2 16 and pressure modulating opening 15 lean and to be sealed by pressure modulating opening 15, and blocking-up inlet hole 12a1 communicates with air outlet hole 12a2.
When setting the initial pressure value of pressure regulator valve, by rotating adjustment screw 21, thread spindle 20 rotates to left movement, and pressure adjusting spring 2 23 pressurized makes valve rod 2 18 be moved to the left, and pressure modulating opening 15 is opened, and air outlet hole 12a2 communicates with inlet hole 12a1.Now, because in counter balance pocket 11, pressure is less than the pressure in pressure regulation valve body 12, gas is entered from pressure guide hole 1c, through inlet hole 12a1, air outlet hole 12a2, attachment hole 1d, finally flow in counter balance pocket 11, make the air pressure in counter balance pocket 11 become large, diaphragm 1 is under pressure and spool 1 is moved down, and makes to be communicated with between suction port 1a1 and air outlet 1a2.Now, balance spring 6 and pressure adjusting spring 1 are all in compressive state and pressure regulation valve body 12 is inner and balance valve body 1 inside is all in state of equilibrium.
During work, gas flows into from suction port 1a1, when the elastic force sum of gas pressure and pressure adjusting spring one 17 pairs of spools 2 16 is less than or equal to the elastic force of pressure adjusting spring 2 23 pairs of spools 2 16, the gas entered from suction port 1a1 does not directly flow through inlet hole 1a1 from air outlet 1a2 outflow, due to now, the buoyancy of gas and the elastic force of balance spring 6 pairs of spools 1 are less than the pressure of diaphragm one 8 pairs of valve rods 1, valve rod 1 moves down and causes spool 1 to move down, aperture between spool 1 and balance port 4 strengthens, and makes to become large from air outlet 1a2 effluent air pressure.
When the pressure of gas that suction port 1a1 flows into and the elastic force sum of pressure adjusting spring one 17 pairs of spools 2 16 are greater than the elastic force of pressure adjusting spring 2 23 pairs of spools 2 16, fraction can flow into pressure guide hole 1c, flow in valve body three 12a, now, because the elastic force of pressure adjusting spring one 17 pairs of spools 2 16 and the pressure sum of gas are greater than the elastic force of pressure adjusting spring 2 23, spool 2 16 can be moved to the left, and pressure adjusting spring 2 23 can compress to the right, and the aperture between spool 2 16 and pressure modulating opening 15 reduces.Gas in valve body three 12a can be entered in counter balance pocket 11 by air outlet hole 12a2, attachment hole 1d, causes the gas pressure intensity in counter balance pocket 11 to become large.Remaining gas flows out from air outlet 1a2 through balance port 4.When the buoyancy to valve rod 1 of residual gas and the elastic force sum of balance spring 6 pairs of spools 1 to be greater than in counter balance pocket 11 gas to the pressure of diaphragm 1, then valve rod 1 moves upward, aperture between spool 1 and balance port 4 reduces, and the pressure of outflow air outlet 1a2 is reduced; When the buoyancy to valve rod 1 of residual gas and the elastic force sum of balance spring 6 pairs of spools 1 to be less than in counter balance pocket 11 gas to the pressure of diaphragm 1, then valve rod 1 moves downward, aperture between spool 1 and balance port 4 increases, and the gas pressure intensity flowing out air outlet 1a2 increases.
When this leading type pressure regulator valve works, spool 2 16 has the trend towards the position movement of spool 2 16 when air outlet hole 12a2 communicates for the first time with inlet hole 12a1 all the time under the effect of pressure adjusting spring 2 23, and when gas enters into pressure regulation valve body 12 by inlet hole 12a1, spool 2 16 moves right, pressure adjusting spring 2 23 compresses to the right, and the aperture between spool 2 16 and pressure modulating opening 15 reduces; Otherwise spool 2 16 is moved to the left under the effect of pressure adjusting spring 2 23.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (9)
1. a leading type pressure regulator valve, comprise the balance valve body (1) that two ends are respectively suction port (1a1) and air outlet (1a2), spool one (5) is provided with between described suction port (1a1) and air outlet (1a2), described spool one (5) upper, lower two ends are connected to diaphragm one (8) and balance spring (6), described diaphragm one (8) forms counter balance pocket (11) with the upper end of balance valve body (1), it is characterized in that, described balance valve body (1) is connected with pressure regulation valve body (12), described pressure regulation valve body (12) is provided with the inlet hole (12a1) be connected with suction port (1a1) and the air outlet hole (12a2) be connected with counter balance pocket (11), the spool two (16) that both can be communicated or cut off is provided with between described inlet hole (12a1) with air outlet hole (12a2), described spool two (16) is connected with pressure adjusting spring one (17) near one end of inlet hole (12a1), described spool two (16) is connected with diaphragm two (19) and pressure adjusting spring two (23) near one end of air outlet hole (12a2), when the elastic force effect of pressure adjusting spring two (23) is greater than the elastic force effect of pressure adjusting spring one (17), inlet hole (12a1) is connected with air outlet hole (12a2).
2. leading type pressure regulator valve according to claim 1, it is characterized in that, described inlet hole (12a1) be provided with pressure modulating opening (15) between air outlet hole (12a2) and both are connected by pressure modulating opening (15), described pressure modulating opening (15) place is provided with the valve rod two (18) be connected with spool two (16), described diaphragm two (19) and pressure adjusting spring two (23) are all connected to the end of valve rod two (18), the surface of described spool two (16) has the sealing gasket (24) that can be sealed when spool two (16) leans with pressure modulating opening (15).
3. leading type pressure regulator valve according to claim 2, it is characterized in that, the valve body three (12a) be connected about described pressure regulation valve body (12) comprises and valve body four (12b), described inlet hole (12a1) and air outlet hole (12a2) are all arranged at the bottom of valve body three (12a), the edge of described diaphragm two (19) is clamped between valve body three (12a) and valve body four (12b), is equipped with O RunddichtringO (10) between the edge of described diaphragm two (19) and valve body three (12a) and valve body four (12b).
4. leading type pressure regulator valve according to claim 3, it is characterized in that, described valve body three (12a) is connected to the top of balance valve body (1), described inlet hole (12a1) and air outlet hole (12a2) are all arranged at the bottom of valve body three (12a), the inlet of described balance valve body (1) is provided with the pressure guide hole (1c) be connected with inlet hole (12a1), the top of described balance valve body (1) is provided with attachment hole (1d), described air outlet hole (12a2) is connected by attachment hole (1d) with the counter balance pocket (11) of balance valve body (1), joint between described valve body three (12a) and balance valve body (1) is provided with pad (13).
5. leading type pressure regulator valve according to claim 3, it is characterized in that, described valve body four (12b) is provided with the through hole (12b1) just right with diaphragm two (19), described through hole (12b1) place is connected with thread spindle (20), the inner of described thread spindle (20) is positioned at valve body four (12b) and within it end is socketed with axle sleeve (22), and the outer end of described thread spindle (20) has been threaded connection adjustment screw (21).
6. the leading type pressure regulator valve according to claim 1 or 2 or 3 or 4 or 5, it is characterized in that, described balance valve body (1) comprises the valve body one (1a) and valve body two (1b) that are connected up and down, the edge of described diaphragm one (8) is clamped between valve body one (1a) and valve body two (1b) and the edge of diaphragm one (8) and valve body one (1a) and valve body two (1b) and is equipped with O RunddichtringO (10), and described diaphragm one (8) forms above-mentioned counter balance pocket (11) with valve body two (1b).
7. the leading type pressure regulator valve according to claim 1 or 2 or 3 or 4 or 5, it is characterized in that, balance port (4) is provided with between the suction port (1a1) of described balance valve body (1) and air outlet (1a2), described balance port (4) place is provided with the valve rod one (7) be connected with spool one (5), the end of valve rod one (7) is fixed at the center of described diaphragm one (8), and the surface of described spool one (5) has the sealing gasket (24) sealed when spool one (5) leans with balance port (4).
8. the leading type pressure regulator valve according to claim 1 or 2 or 3 or 4 or 5, it is characterized in that, described balance valve body (1) is externally connected with the pressure gauge (25) communicated with the air outlet balancing valve body (1) (1a2).
9. the leading type pressure regulator valve according to claim 1 or 2 or 3 or 4 or 5, is characterized in that, described diaphragm one (8) is wavy metal diaphragm with diaphragm two (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420316571.1U CN204062067U (en) | 2013-12-27 | 2014-06-13 | A kind of leading type pressure regulator valve |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310737185.X | 2013-12-27 | ||
| CN201310737185.XA CN103697207A (en) | 2013-12-27 | 2013-12-27 | Pilot-operated pressure regulating valve |
| CN201420316571.1U CN204062067U (en) | 2013-12-27 | 2014-06-13 | A kind of leading type pressure regulator valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204062067U true CN204062067U (en) | 2014-12-31 |
Family
ID=50358835
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310737185.XA Pending CN103697207A (en) | 2013-12-27 | 2013-12-27 | Pilot-operated pressure regulating valve |
| CN201410264484.0A Active CN104048085B (en) | 2013-12-27 | 2014-06-13 | A kind of pilot-operated type pressure regulator valve |
| CN201420316571.1U Withdrawn - After Issue CN204062067U (en) | 2013-12-27 | 2014-06-13 | A kind of leading type pressure regulator valve |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310737185.XA Pending CN103697207A (en) | 2013-12-27 | 2013-12-27 | Pilot-operated pressure regulating valve |
| CN201410264484.0A Active CN104048085B (en) | 2013-12-27 | 2014-06-13 | A kind of pilot-operated type pressure regulator valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN103697207A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048085A (en) * | 2013-12-27 | 2014-09-17 | 李潘宝 | Pilot-operated type pressure regulation valve |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763831B (en) * | 2015-04-24 | 2017-02-01 | 眉山中车制动科技股份有限公司 | Safety valve |
| CN105757278A (en) * | 2016-04-01 | 2016-07-13 | 成都科盛石油科技有限公司 | Pressure releasing main valve with convenience in controlling gas outlet pressures of fuel gas |
| CN105673898A (en) * | 2016-04-01 | 2016-06-15 | 成都科盛石油科技有限公司 | Pressure-dropping main valve capable of improving outlet gas pressure regulating precision |
| CN107143679A (en) * | 2017-05-15 | 2017-09-08 | 永嘉县信诚科技服务有限公司 | Diaphragm-type safety valve |
| CN107816568A (en) * | 2017-11-10 | 2018-03-20 | 宁波新佳行自动化工业有限公司 | A kind of pressure-reducing valve |
| CN112377297B (en) * | 2020-11-16 | 2022-05-27 | 四川莱克斯流体控制设备有限公司 | Multifunctional universal adjustable exhaust valve |
| CN112797176B (en) * | 2021-01-29 | 2021-12-17 | 青岛精锐机械制造有限公司 | Pilot-operated type angle seat valve capable of preventing sealing part from being subjected to large load force |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2168504B (en) * | 1984-12-14 | 1988-09-07 | Tlv Co Ltd | Pressure reducing valve |
| CN88200110U (en) * | 1988-01-15 | 1988-10-19 | 航天工业部第十一研究所 | Pilot bellows type relief valve |
| CN1189586A (en) * | 1997-01-31 | 1998-08-05 | 顾天骠 | Diaphragm driving steady flow control valve |
| CN200979003Y (en) * | 2006-12-13 | 2007-11-21 | 马景岗 | Self-operated adjustable differential pressure valve |
| KR101110344B1 (en) * | 2009-05-19 | 2012-02-15 | 주식회사 코밸 | Pressure reducing valve |
| CN103430118B (en) * | 2011-05-17 | 2016-01-13 | 株式会社小金井 | Piloted reducer |
| CN202746696U (en) * | 2012-06-09 | 2013-02-20 | 奉化市全盛自动化工程有限公司 | Pressure regulating valve structure |
| CN103697207A (en) * | 2013-12-27 | 2014-04-02 | 李潘宝 | Pilot-operated pressure regulating valve |
-
2013
- 2013-12-27 CN CN201310737185.XA patent/CN103697207A/en active Pending
-
2014
- 2014-06-13 CN CN201410264484.0A patent/CN104048085B/en active Active
- 2014-06-13 CN CN201420316571.1U patent/CN204062067U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048085A (en) * | 2013-12-27 | 2014-09-17 | 李潘宝 | Pilot-operated type pressure regulation valve |
| CN104048085B (en) * | 2013-12-27 | 2016-08-03 | 李潘宝 | A kind of pilot-operated type pressure regulator valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104048085B (en) | 2016-08-03 |
| CN104048085A (en) | 2014-09-17 |
| CN103697207A (en) | 2014-04-02 |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20141231 Effective date of abandoning: 20160803 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |