CN209130255U - A kind of static state pressure-reduced and-regulated container value - Google Patents

Abstract

The utility model discloses a kind of static pressure-reduced and-regulated container values, including valve body, the valve deck of spool and the spy fire tube for connecting outside, spool is airtight along the vertical direction to be movably set in chamber, spool includes upper valve core and bottom spool interconnected, the area of the upper surface of upper valve core is greater than the area of the lower surface of bottom spool, the container value intake channel being connected with lower chambers is also provided on valve body, the container value exit passageway through the valve deck is provided on valve deck, the aperture of the container value exit passageway is less than the aperture of container value intake channel, spool offers spool hollow channel along short transverse, spool inlet channel is offered on spool in the width direction, the aperture of spool hollow channel is greater than the aperture of container value exit passageway, the aperture of container value exit passageway is greater than the aperture of spool inlet channel, the utility model is suitable for Steel cylinder pressure is greater than the direct spy fire-tube type extinguishing device for visiting fire tube pressure, it is possible to provide more reliable more stable driving kinetic energy.

Description

A kind of static state pressure-reduced and-regulated container value

Technical field

The utility model relates to visit fire-tube type extinguishing device field, more particularly to a kind of static pressure-reduced and-regulated container value.

Background technique

Currently, what the direct spy fire-tube type extinguishing device for filling heptafluoro-propane extinguishing chemical in the market mostly used greatly is straight General formula container value fills much pressure in steel cylinder, visit in fire tube pipeline section with regard to much pressure, so charge pressure is most in steel cylinder Nominal pressure 1.6MPa is selected, to guarantee that the pipeline section pressure for visiting fire tube will not be higher.But fire tube is visited in order to improve extinguishing device Application length and fire extinguishing effectiveness, extinguishing chemical need more reliable more stable driving kinetic energy, and Lai Tigao spurts speed, and more fast diffusion goes out Fiery agent fire extinguishing, and then fire-fighting efficiency is improved, steel cylinder domestic demand fills pressure more higher than spy fire tube to achieve the goals above, at this time Conduction through type container valve is not just applicable to this case.

Utility model content

In view of this, steel cylinder may be implemented the purpose of this utility model is to provide a kind of static pressure-reduced and-regulated container value Pressure, which is greater than, visits fire tube pressure, and furthermore more reliable more stable driving kinetic energy can also be provided in the utility model.

In order to achieve the above objectives, the solution of the utility model is:

A kind of static state pressure-reduced and-regulated container value, it is characterised in that: including valve body, spool and for connecting external spy fire tube Valve deck, the valve deck is covered in the valve body, chamber, the shape of the chamber and the spool phase offered in the valve body Cooperation, the spool is airtight along the vertical direction to be movably set in the chamber, the chamber include the upper chamber that is connected and Lower chambers, the upper chamber are set to the top of the lower chambers, the area of the horizontal cross-section of the upper chamber be greater than it is described under The area of the horizontal cross-section of chamber, the spool include upper valve core and bottom spool interconnected, the upper surface of the upper valve core Area be greater than the bottom spool lower surface area, the upper valve core is located at the top of the bottom spool, on the valve body It is provided with venthole, the venthole is connected to the region outside the chamber and the chamber, is also provided on the valve body and institute The container value intake channel that lower chambers are connected is stated, the container value exit passageway through the valve deck is provided on the valve deck, The aperture of the container value exit passageway be less than the container value intake channel aperture, the container value exit passageway with it is described Upper chamber is connected, and the spool offers spool hollow channel along short transverse, offers in the width direction on the spool Spool inlet channel, the spool inlet channel are connected with the spool hollow channel, the aperture of the spool hollow channel Greater than the aperture of the container value exit passageway, the aperture of the container value exit passageway is greater than the hole of the spool inlet channel Diameter is provided with gasket, gasket setting coaxial with the container value intake channel, institute on the lower surface of the bottom spool The horizontal sectional area for stating gasket is greater than the horizontal sectional area of the container value intake channel.

The first O-ring seal is provided on the side wall of the upper valve core, it is O-shaped to be provided with second on the side wall of the bottom spool Sealing ring.

Third O-ring seal is provided on the upper surface of the upper valve core, when the spool is located at the top of the chamber, The air inlet of the container value exit passageway is located in the third O-ring seal.

Be additionally provided on the valve body safety relief device being connected with the container value intake channel and with the appearance The gas-charging connection that device valve intake channel is connected.

Pressure gauge is provided on the gas-charging connection.

After adopting the above structure, a kind of static pressure-reduced and-regulated container value of the utility model has the advantages that

1. the area of the upper surface of upper valve core is greater than the area of the lower surface of bottom spool, when the upper surface for acting on upper valve core On pressure when being equal to the pressure acted on the lower surface of bottom spool, container value is closed, due to the face of the upper surface of upper valve core The upper air pressure pressure for accumulating the area for being greater than the lower surface of bottom spool, therefore acting on the upper surface of upper valve core, which is greater than, to be acted on down Air pressure pressure on the lower surface of spool, so that effect of easing stress is realized, when the pressure on the upper surface for acting on upper valve core is less than When acting on the pressure on the lower surface of bottom spool, spool rises, and container value is opened, and pressure is supplemented to upper end, when upper end pressure When reaching setting value, down force is greater than upward active force, spool decline, and sealing container valve reaches voltage stabilizing function.

The sectional area of container value intake channel is greater than exit passageway sectional area, and the gas flow for flowing into container value is greater than outflow The gas flow of container value, the gas flowed into from container value intake channel provide a upward thrust for spool, guarantee spool Standard-sized sheet is to provide max-flow flux.

The sectional area of container value intake channel is greater than exit passageway sectional area, the area of section of exit passageway be greater than spool into Mouth channel, when gas from vessel valve intake channel enters spool intake channel, since the sectional area of container value intake channel is greater than The cross-sectional area of spool intake channel, the gas between the lower surface and lower chambers of spool flows into fast outflow slowly, in spool Booster cavity is formed between lower surface and lower chambers, spool is jacked up, and guarantees that container value standard-sized sheet provides max-flow flux, and container value Exit passageway sectional area is greater than spool intake channel sectional area, and the gas between the upper surface and valve deck of spool flows into slug flow and goes out Fastly, it avoids forming booster cavity obstruction container value standard-sized sheet between the upper surface of spool and valve deck；

The sectional area of spool hollow channel is greater than container value exit passageway sectional area, during gas is flow to through spool intake channel Empty channel, gas enter in large space swollen, the speed of quickening gas outflow spool of splashing rapidly from small space, can to extinguishing chemical offer The acceleration driving kinetic energy leaned on；

2. the first O-ring seal and the second O-ring seal can be further ensured that the air-tightness between valve body and chamber.

3. spool upper end is equipped with third O-ring seal, when spool upwardly opens, third O-ring seal contacts valve deck, at this time The spool upper surface that third O-ring seal is surrounded is useful effect power area, and above-mentioned useful effect power area is less than spool The area of upper surface is further ensured that the spool of container value can be with full-gear.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

In figure: 1. valve bodies, 11. container value intake channels, 12. ventholes, 2. spools, 21. upper valve cores, 22. bottom spools, 23. spool hollow channel, 24. spool inlet channels, 3. valve decks, 31. container value exit passageways, 4. chambers, 41. upper chamber, 42. Lower chambers, 5. gaskets, 6. first O-ring seals, 7. second O-ring seals, 8. third O-ring seals.

Specific embodiment

In order to which the technical solution of the utility model is explained further, below by specific embodiment come to the utility model into Row elaborates.

A kind of static pressure-reduced and-regulated container value as shown in Figure 1, including valve body 1, spool 2 and for connecting external spy fire The valve deck 3 of pipe, above-mentioned spy fire tube are the conventional spy fire tube in well-known technique and are not belonging to a kind of above-mentioned static pressure-reduced and-regulated container A part of valve.

3 spiral of valve deck is connected to 1 upper end of valve body, and sealing ring is additionally provided between valve deck 3 and valve body 1, is offered in valve body 1 The shape of chamber 4, chamber 4 is matched with spool 2, and spool 2 is movably set in along the vertical direction in chamber 4, spool 2 and chamber 4 Side wall between be additionally provided with sealing structure.

Chamber 4 includes the upper chamber 41 being connected and lower chambers 42, and upper chamber 41 and lower chambers 42 are columned chamber Room, upper chamber 41 are set to the top of lower chambers 42, and the level that the area of the horizontal cross-section of upper chamber 41 is greater than lower chambers 42 is cut The area in face is provided with venthole 12 on valve body 1, and venthole 12 is arranged on the side wall of valve body 1, and preferable venthole 12 is arranged On the position that valve body corresponds to 41 lower part of upper chamber, region outside 12 connecting chamber 4 of venthole and chamber 4, on valve body 1 It is also provided with the container value intake channel 11 being connected with lower chambers 42.

Spool 2 includes upper valve core 21 interconnected and bottom spool 22, upper valve core 21 and bottom spool 22 be it is cylindric, on The area of the upper surface of spool 21 is greater than the area of the lower surface of bottom spool 22, and upper valve core 21 is located at the top of bottom spool 22.

The container value exit passageway 31 through valve deck 3 is provided on valve deck 3, the aperture of container value exit passageway 31, which is less than, to hold The aperture of device valve intake channel 11, when valve deck 3 is covered in the valve body 1, container value exit passageway 31 is connected with upper chamber 41, Spool 2 offers a spool hollow channel 23 along the vertical direction, and spool hollow channel 23 is provided with the axis line position of spool 2 On, the dew open at one end of spool hollow channel 23 is set to the upper surface of spool 2, offered in the horizontal direction on spool 2 spool into Gas channel 24,2 inlet channel of spool are connected with spool hollow channel 23, and the aperture of spool hollow channel 23 goes out greater than container value The aperture in mouthful channel 31, the aperture of container value exit passageway 31 are greater than the aperture of spool inlet channel 24, under the bottom spool It is provided with gasket 5 on surface, mounting groove, the upper end setting of gasket 5 are offered on the lower surface of the specific bottom spool There is fixture block, the fixture block is fastened in the mounting groove, the setting coaxial with container value intake channel 11 of gasket 5, the sealing The horizontal sectional area of pad 5 is greater than the horizontal sectional area of container value intake channel 11, when spool 2 is located at the extreme lower position in chamber 4, Packing 5 squeezes to block completely to be located on the gas outlet on valve body 1 in container value intake channel 11.

Preferably, being provided with the first O-ring seal 6 on the side wall of upper valve core 21, is provided on the side wall of bottom spool 22 Two O-ring seals 7.

Preferably, being additionally provided with third O-ring seal 8 on the upper surface of upper valve core 21, spool 2 is located at the top of chamber 4 When, the air inlet of container value exit passageway 31 is corresponding with the space that the third O-ring seal 8 is surrounded.

It is additionally provided with the safety relief device being connected with container value intake channel 11 on valve body 1 and leads to container value import The gas-charging connection that road is connected is additionally provided with pressure gauge, above-mentioned safety relief device, gas-charging connection and pressure gauge on gas-charging connection It is well-known technique.

The product form and style of above-described embodiment and attached drawing and non-limiting the utility model, any technical field The appropriate changes or modifications that those of ordinary skill does it all should be regarded as the patent category for not departing from the utility model.

Claims (5)

1. a kind of static state pressure-reduced and-regulated container value, it is characterised in that: including valve body, spool and valve deck, the valve deck is covered in institute Valve body is stated, chamber is offered in the valve body, the shape of the chamber is matched with the spool, and the spool is along the vertical direction It is movably set in the chamber, sealing structure is provided between the spool and the chamber, the chamber includes being connected Upper chamber and lower chambers, the upper chamber be set to the top of the lower chambers, the area of the horizontal cross-section of the upper chamber Greater than the area of the horizontal cross-section of the lower chambers, the spool includes upper valve core and bottom spool interconnected, the upper valve The area of the upper surface of core is greater than the area of the lower surface of the bottom spool, and the upper valve core is located at the top of the bottom spool, It is provided with venthole on the valve body, the venthole is connected to the region outside the upper chamber and the chamber, on the valve body It is also provided with the container value intake channel being connected with the lower chambers, the container through the valve deck is provided on the valve deck Valve outlet channel, the aperture of the container value exit passageway are less than the aperture of the container value intake channel, and the container value goes out Mouthful channel is connected with the upper chamber, and the spool offers spool hollow channel along the vertical direction, along water on the spool Square to spool inlet channel is offered, the spool inlet channel is connected with the spool hollow channel, in the spool The aperture in empty channel is greater than the aperture of the container value exit passageway, and the aperture of the container value exit passageway is greater than the spool The aperture of inlet channel, gasket is provided on the lower surface of the bottom spool, and the gasket and the container value import are logical The coaxial setting in road, the horizontal sectional area of the gasket are greater than the horizontal sectional area of the container value intake channel.

2. a kind of static pressure-reduced and-regulated container value according to claim 1, it is characterised in that: the sealing structure includes setting The second O-ring seal setting the first O-ring seal on the side wall of upper valve core and being arranged on the side wall of the bottom spool.

3. a kind of static pressure-reduced and-regulated container value according to claim 1, it is characterised in that: the upper surface of the upper valve core On be provided with third O-ring seal, when the spool is located at the top of the chamber, the air inlet of the container value exit passageway It is corresponding with the space that the third O-ring seal is surrounded.

4. a kind of static pressure-reduced and-regulated container value according to claim 1, it is characterised in that: be additionally provided on the valve body The safety relief device being connected with the container value intake channel and the inflation being connected with the container value intake channel connect Head.

5. a kind of static pressure-reduced and-regulated container value according to claim 4, it is characterised in that: be arranged on the gas-charging connection There is pressure gauge.