阅读说明：本技术 一种气爆式减压模块 (Gas explosion type pressure reducing module ) 是由 王天舒 吕梦璐 王禹涧 张智远 于 2021-08-20 设计创作，主要内容包括：本发明提供一种气爆式减压模块,包括一级减压器、二级减压器、高压进气组件和低压出气组件,所述一级减压器安装于二级减压器上部,高压进气组件安装于一级减压器侧部,低压出气组件安装于二级减压器侧部,所述高压进气组件位于低压出气组件上部,高压进气组件和低压出气组件通过法兰连接,所述高压进气组件和低压出气组件内部为贯通腔体,所述贯通腔体内安装有气爆组件。本发明采用的密封帽密封形式,能够实现非工作状态下的零泄漏,可靠性高；与传统气路减压器及单向阀装置相比,单向阀及减压器集成于一体；巧妙利用高压气源的高压气体作动力、可实现传统反向截止阀无法实现的零泄漏功能。(The invention provides a gas explosion type pressure reducing module which comprises a primary pressure reducer, a secondary pressure reducer, a high-pressure gas inlet assembly and a low-pressure gas outlet assembly, wherein the primary pressure reducer is arranged at the upper part of the secondary pressure reducer, the high-pressure gas inlet assembly is arranged at the side part of the primary pressure reducer, the low-pressure gas outlet assembly is arranged at the side part of the secondary pressure reducer, the high-pressure gas inlet assembly is positioned at the upper part of the low-pressure gas outlet assembly, the high-pressure gas inlet assembly and the low-pressure gas outlet assembly are connected through a flange, a through cavity is arranged inside the high-pressure gas inlet assembly and the low-pressure gas outlet assembly, and the gas explosion assembly is arranged in the through cavity. The sealing cap adopted by the invention can realize zero leakage in a non-working state, and has high reliability; compared with the traditional gas circuit pressure reducer and one-way valve device, the one-way valve and the pressure reducer are integrated into a whole; the high-pressure gas of the high-pressure gas source is skillfully utilized as power, and the zero leakage function which cannot be realized by the traditional reverse stop valve can be realized.)

1. The utility model provides a gas explosion formula decompression module which characterized in that: including one-level pressure reducer, second grade pressure reducer, high pressure subassembly and the low pressure subassembly of giving vent to anger of admitting air, one-level pressure reducer installs on second grade pressure reducer upper portion, and the high pressure subassembly of admitting air is installed in one-level pressure reducer lateral part, and the low pressure subassembly of giving vent to anger is installed in second grade pressure reducer lateral part, the high pressure subassembly of admitting air is located low pressure subassembly upper portion of giving vent to anger, and the high pressure subassembly of admitting air and the low pressure subassembly of giving vent to anger pass through flange joint, the high pressure subassembly of admitting air and the low pressure subassembly of giving vent to anger are inside for lining up the cavity, it explodes the subassembly to install the gas in the cavity to link up.

2. A gas explosion pressure relief module as defined in claim 1, wherein: the gas explosion assembly is composed of a cutter and a sealing cap, one end of the sealing cap is arranged in a groove body at the lower end of the cutter, and the cutter and the sealing cap are arranged in a through cavity formed in the high-pressure gas inlet assembly and the low-pressure gas outlet assembly.

3. A gas explosion pressure relief module as defined in claim 2, wherein: the cutter is the columnar structure, and the upper end is cylinder and high pressure air inlet assembly's cavity clearance fit, processing has two rings of ring channels from top to bottom on the cylinder, installs the sealing washer in the ring channel, the cutter lower extreme is for processing the stripping and slicing that has the cell body, and the cylinder passes through the connecting rod with the stripping and slicing and is connected.

4. A gas explosion pressure relief module as defined in claim 2, wherein: the high-pressure air inlet component is characterized in that a shell of the high-pressure air inlet component is of an up-and-down through cavity structure with a cavity, the top of the cavity is sealed through a blocking cap, a high-pressure air outlet is processed on one side of the shell, the cavity is communicated with a first-stage pressure reducer through the high-pressure air outlet, a high-pressure air inlet is processed on the other side of the shell, an air inlet pipe nozzle is installed outside the high-pressure air inlet, and a cutter is installed in the cavity.

5. A gas explosion pressure relief module as defined in claim 2, wherein: the casing of low pressure subassembly of giving vent to anger is the cell body structure, and the top surface of cell body and the cavity butt joint of high pressure subassembly of admitting air form and link up the cavity, and casing one side processing has the low pressure air inlet, the low pressure air inlet makes cavity and second grade pressure reducer intercommunication, and the opposite side processing of casing has the low pressure gas outlet, the gas outlet mouthpiece is installed outward to the low pressure gas outlet, install sealed cap between gas outlet mouthpiece and the casing, sealed cap has open-ended one end dress to press from both sides between gas outlet mouthpiece and casing, and sealed cap has sealed lug one end dress card in the cell body of cutter.

6. A gas explosion pressure relief module according to claim 5, wherein: the joint of the sealing convex block of the sealing cap and the rest part of the sealing cap is processed into a thin-wall structure.

7. A gas explosion pressure relief module according to claim 5, wherein: the sealing cap is made of brittle aluminum alloy.

8. A gas explosion type pressure reduction module according to any one of claims 1 to 7, characterized in that: the shell of the first-stage pressure reducer and the shell of the high-pressure air inlet assembly are processed into a whole to be called a first-stage shell, the shell of the second-stage pressure reducer and the shell of the low-pressure air outlet assembly are processed into a whole to be called a second-stage shell, and the first-stage shell and the second-stage shell are fixedly connected through a flange.

Technical Field

The invention belongs to the technical field of pressure reducing valves, and particularly relates to a gas explosion type pressure reducing module.

Background

The pressure reducer, the check valve, the relief valve is in various pneumatic system wide application, because stable decompression behind the assurance system output high pressure, the sealed and bypass pressure release protection behind the overpressure of assurance backward low pressure again, this is bigger just resulting in the whole installation space of system, and because elastomer space and required weight are retrencied more and more, for saving system space, reduce weight, improve the rate of utilization of air supply, the decompression module that the design function integrates is for must tendency, has wide market prospect. Patent application number is CN 201920578950.0's utility model relates to a gas circuit system decompression module, this decompression module can realize collecting pressure reducer, check valve, relief valve in an organic whole, guarantees promptly that the stable decompression in the high pressure back of air supply input, will guarantee again that reverse tank liquid does not flow back to decompression module inside, has the superpressure protect function simultaneously. The pressure reducing module is used in the gas circuit system to reduce the pressure of the high-pressure gas in the high-pressure gas source to a specified pressure, so that the requirement of the pressurization liquid circuit system is met. When the medium in the pressurization system is corrosive or volatile liquid, a check valve is often required to be additionally arranged at the outlet of the pressure reduction module to meet the requirement of reverse cut-off. The reverse sealing function of the prior art is achieved by the cooperation of the sealing flap with the spring. The pressure reducing module of the gas circuit system in the prior art has the following defects: the reverse stop valve is a rubber ring sealing form, needs certain sealing specific pressure, and has poor environmental adaptability and poor sealing effect. The universal pressure reducer of the present industry has the defects that the reverse liquid way flows back and zero leakage cannot be realized when a reverse stop valve is additionally arranged.

Disclosure of Invention

The invention aims to solve the technical problem that a pressure reducing module with a gas explosion type check valve as a reverse stop valve is provided, and the pressure reducing module solves the problems that a certain sealing specific pressure is required in the sealing form of a rubber ring, the environmental adaptability is poor, the sealing effect is poor, and zero leakage cannot be realized when the pressure reducing module is applied to the reverse stop valve when a medium in a pressurizing system is corrosive or volatile liquid.

The technical scheme adopted by the invention is as follows: the utility model provides a gas explosion formula decompression module, includes one-level pressure reducer, second grade pressure reducer, high pressure subassembly and the low pressure subassembly of giving vent to anger, one-level pressure reducer installs in second grade pressure reducer upper portion, and the high pressure subassembly of admitting air is installed in one-level pressure reducer lateral part, and the low pressure subassembly of giving vent to anger is installed in second grade pressure reducer lateral part, the high pressure subassembly of admitting air is located low pressure subassembly upper portion of giving vent to anger, and the high pressure subassembly of admitting air and the low pressure subassembly of giving vent to anger pass through flange joint, the high pressure subassembly of admitting air and the low pressure subassembly of giving vent to anger are inside for lining up the cavity, it explodes the subassembly to link up to install the gas in the cavity.

Preferably, the gas explosion assembly is a cutter and a sealing cap with one end installed in a groove body at the lower end of the cutter, and the cutter and the sealing cap are both installed in a through cavity formed in the high-pressure gas inlet assembly and the low-pressure gas outlet assembly.

Preferably, the cutter is the columnar structure, and the upper end is cylinder and high pressure air inlet assembly's cavity clearance fit, processing has two rings of ring channels from top to bottom on the cylinder, installs the sealing washer in the ring channel, the cutter lower extreme is for processing the stripping and slicing that has the cell body, and the cylinder passes through the connecting rod with the stripping and slicing and is connected.

Preferably, the shell of the high-pressure air inlet assembly is of an up-and-down through cavity structure with a cavity, the top of the cavity is sealed through a blocking cap, a high-pressure air outlet is formed in one side of the shell, the cavity is communicated with the first-stage pressure reducer through the high-pressure air outlet, a high-pressure air inlet is formed in the other side of the shell, an air inlet nozzle is installed outside the high-pressure air inlet, and a cutter is installed in the cavity.

Preferably, the casing of low pressure subassembly of giving vent to anger is the cell body structure, and the top surface of cell body forms the cavity that link up with high pressure subassembly of admitting air's cavity butt joint, and casing one side processing has the low pressure air inlet, the low pressure air inlet makes cavity and second grade pressure reducer intercommunication, and the opposite side processing of casing has the low pressure gas outlet, the gas outlet mouthpiece is installed outward to the low pressure gas outlet, install sealed cap between gas outlet mouthpiece and the casing, sealed cap has open-ended one end dress to press from both sides between gas outlet mouthpiece and casing, and sealed cap has sealed lug one end dress card in the cell body of cutter.

Preferably, the joint of the sealing convex block of the sealing cap and the rest part of the sealing cap is processed into a thin-wall structure, and a stress weak point is formed, so that the cutting of the cutter is facilitated.

Preferably, the material of the sealing cap is brittle aluminum alloy, and the material is corrosion-resistant and suitable for cutting the sealing cap by a cutter under the impact of 5-10MPa gas.

Preferably, the shell of the first-stage pressure reducer and the shell of the high-pressure air inlet assembly are processed into a whole to be called a first-stage shell, the shell of the second-stage pressure reducer and the shell of the low-pressure air outlet assembly are processed into a whole to be called a second-stage shell, and the first-stage shell and the second-stage shell are fixedly connected through a flange.

The invention has the beneficial effects that:

1. the sealing cap adopted by the invention can realize zero leakage in a non-working state, and has high reliability;

2. compared with the traditional gas circuit pressure reducer and one-way valve device, the one-way valve and the pressure reducer are integrated into a whole;

3. the invention skillfully utilizes the high-pressure gas of the high-pressure gas source as power and can realize the zero leakage function which cannot be realized by the traditional reverse stop valve.

Drawings

FIG. 1 is a schematic structural diagram of a gas explosion type pressure reducing module;

FIG. 2 is a schematic structural diagram of a gas explosion type pressure reducing module after a sealing cap is cut off;

FIG. 3 is a schematic view of a high pressure intake assembly;

FIG. 4 is a schematic view of a low pressure venting assembly;

FIG. 5 is a schematic structural view of a first-stage pressure reducer;

fig. 6 is a schematic structural diagram of the two-stage pressure reducer.

Reference numerals: 1-air inlet nozzle, 2-blocking cap, 3-high pressure air outlet, 4-sealing ring, 5-cutting knife, 6-air outlet nozzle, 7-sealing cap, 8-low pressure air inlet, 9-secondary shell, 10-primary shell, 11-upper flange, 12-lower flange, 13-primary throttling seam, 14-valve rod, 15-first valve, 16-double nut, 17-adjusting screw sleeve, 18-spring, 19-clapboard, 20-adjusting spring, 21-sleeve, 22-adjusting screw, 23-valve seat, 24-secondary throttling seam, 25-second valve, 71-sealing lug and 72-thin wall.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Working principle of the pressure reducer: the pressure in the high-pressure gas cylinder is reduced to a specified value so as to squeeze the propellant in the rear-end tank of the pressure reducer. When high-pressure gas passes through a narrow passage formed between the valve and the valve seat, the gas is throttled and decompressed. During the throttling process, collision, friction and vortex are generated between gas molecules and between the gas molecules and a channel wall, the gas is in an unbalanced state and is an irreversible process, and the degree of pressure reduction after throttling is determined by the balance force given by a spring.

As shown in fig. 1, a gas explosion formula decompression module, including the one-level pressure reducer, the second grade pressure reducer, the high pressure subassembly and the low pressure subassembly of giving vent to anger of admitting air, the one-level pressure reducer is installed on second grade pressure reducer upper portion, the high pressure subassembly of admitting air is installed in one-level pressure reducer lateral part, the low pressure subassembly of giving vent to anger is installed in second grade pressure reducer lateral part, the casing of one-level pressure reducer is called one-level casing 10 with the casing processing of the high pressure subassembly as an organic whole, the casing of second grade pressure reducer is called second grade casing 9 with the casing processing of the low pressure subassembly of giving vent to anger as an organic whole, one-level casing 10 passes through upper flange 11 and lower flange 12 fixed connection with second grade casing 9. The high pressure subassembly that admits air is located the low pressure subassembly upper portion of giving vent to anger, and the high pressure subassembly that admits air and the low pressure subassembly of giving vent to anger passes through upper flange 11 and lower flange 12 fixed connection, and the high pressure subassembly that admits air and the low pressure subassembly of giving vent to anger is inside for lining up the cavity, and the intracavity that link up is installed the gas explosion subassembly, and the gas explosion subassembly is cutter 5 and one end installs sealing cap 7 in the cutter 5 lower extreme cell body. Cutter 5 is the columnar structure, and the upper end is cylinder and high pressure air inlet assembly's cavity clearance fit, and processing has two rings of ring channels from top to bottom on the cylinder, installs sealing washer 4 in the ring channel, and 5 lower extremes of cutter are for processing the stripping and slicing that have the cell body, and the cylinder passes through the connecting rod with the stripping and slicing to be connected. As shown in fig. 1 and 2, the length of the cutting knife 5 is smaller than the height of the whole through cavity, when the cutting knife 5 does not cut off the sealing cap 7, the cylinder of the cutting knife 5 just blocks the high-pressure air outlet 3, the distance between the cutting block and the bottom of the cavity is larger than the diameter of the sealing cap 7, when the cutting knife 5 moves downwards under the impact of 5-10MPa gas, and the sealing cap 7 is cut off by the cutting knife 5, the thin wall 72 weak link of the sealing cap 7 is cut off, and the sealing bump 71 moves downwards along with the cutting knife 5 to form airflow conduction.

As shown in fig. 3, a primary shell 10 of the high-pressure air inlet component part is a vertically through cavity structure with a cavity, the top of the cavity is sealed by a blocking cap 2, a high-pressure air outlet 3 is processed at one side of the primary shell 10, the cavity is communicated with a primary pressure reducer through the high-pressure air outlet 3, a high-pressure air inlet is processed at the other side of the primary shell 10, an air inlet pipe nozzle 1 is installed outside the high-pressure air inlet, and a cutter 5 is installed in the cavity.

As shown in fig. 4, the secondary housing 9 of the low-pressure air outlet assembly is of a groove structure, the top surface of the groove is in butt joint with the cavity of the high-pressure air inlet assembly to form a through cavity, a low-pressure air inlet 8 is formed in one side of the secondary housing 9, the cavity is communicated with the secondary pressure reducer through the low-pressure air inlet 8, a low-pressure air outlet is formed in the other side of the secondary housing 9, an air outlet nozzle 6 is installed outside the low-pressure air outlet, a sealing cap 7 is installed between the air outlet nozzle 6 and the secondary housing 9, one end of the sealing cap 7 with an opening is clamped between the air outlet nozzle 6 and the secondary housing 9, and one end of the sealing cap 7 with a sealing bump 71 is clamped in the groove of the cutter 5. The joint of the sealing convex block 71 of the sealing cap 7 and the rest part of the sealing cap 7 is processed into a thin-wall 72 structure, and a stress weak point is formed to facilitate the shearing of the cutter. The sealing cap 7 is made of brittle aluminum alloy, and the material is corrosion-resistant and suitable for the cutting knife 5 capable of cutting off the sealing cap 7 under the impact of 5-10MPa gas.

As shown in fig. 5, an adjusting screw sleeve 17, a spring 8 and a valve assembly are sequentially arranged in the primary shell 10 from top to bottom, the upper end of the spring 18 is connected with the adjusting screw sleeve 17 for adjusting the elastic force value of the spring 18, the lower end of the spring 18 is connected with a valve rod 14, the lower part of the valve rod 14 is connected with a first valve 15, a double nut 16 is arranged at the lower end of the first valve 15, the spring 8 pushes the first valve 15 to form a primary throttling seam 13 with the primary shell 10, and the primary throttling seam has the functions of throttling and depressurizing to reduce the high-pressure air to 3-2 MPa. The primary shell 10, the first valve 15 and the spring 18 form a positive unloading type primary pressure reducing structure.

As shown in fig. 6, a secondary decompression sub-spring, a second valve 25, a valve seat 23, and an adjusting spring 20 are sequentially disposed in the secondary housing 9 from top to bottom, a bottom end of the secondary decompression sub-spring is connected to a top end of the second valve 25, the second valve 25 is sleeved in the sleeve 21, a bottom end of the second valve 25 abuts against the valve seat 23, a secondary throttling slit 24 is formed between the second valve 25 and the valve seat 23, and is used for reducing the secondary throttling pressure of the gas to 0.1MPa-0.3MPa, a partition plate 19 is connected below the valve seat 23, the adjusting spring 20 is mounted on a lower portion of the partition plate 19, and an adjusting screw 22 is connected to the other end of the adjusting spring 20. The secondary decompression auxiliary spring, the second valve 25, the valve seat 23 and the adjusting spring 20 form a reverse non-unloading secondary decompression structure.

The pressure reducing module of the invention is characterized in that the first-stage pressure reducer and the second-stage pressure reducer are connected up and down, and simultaneously, the pressure reducing module integrates the pressure reducing function, the safety protection function and the reverse stopping function, thereby greatly reducing the dead weight and reducing the connection sealing links.

When the inlet pressure is given, the spring 18 at the lower part of the adjusting screw sleeve 17 is compressed by adjusting the adjusting screw sleeve 17, the force of the spring 18 acts on the first valve 15 and interacts with the inlet pressure to open the first valve 15 to a certain height to form a first-stage throttling seam 13 and reach a dynamic force balance state, the first-stage outlet pressure throttled by the first-stage throttling seam 13 flows into the second-stage shell 9 and is subjected to reverse non-unloading type second-stage pressure reduction, the stable outlet pressure is output by adjusting the adjusting screw 22, one path of the outlet pressure flows through the one-way valve and the other path of the outlet pressure flows through the safety valve in the inner cavity of the second-stage shell, because the one-way valve has smaller forward flow resistance, the stable output pressure is provided for the system through the air outlet, when the outlet pressure is abnormally increased due to abnormal work of the pressure reduction module, the cutter 5 cuts off the sealing cap 7 to form a path, and the pressure reduction protection effect is achieved. The gas explosion type pressure reducing module keeps the sealing cap 7 at the low-pressure outlet sealed and prevents liquid outside the outlet from flowing back as shown in figure 1 in a non-working state; after the device starts to work, as shown in figure 2, under the pressure action of high-pressure gas entering from the gas inlet pipe nozzle 1, the inlet pressure range is 60MPa-6MPa, the inlet pressure pushes the cutter 5, and the cutter 5 cuts off the sealing cap 7 under the action of the one-way inlet high pressure, so that the low-pressure gas outlet is communicated; the gas of the pressure reducing module flows through the first-stage pressure reducer for pressure reduction, then flows into the second-stage pressure reducer for pressure stabilization to be below 0.5MPa, and then flows out of the gas outlet pipe nozzle 6; meanwhile, in order to ensure the tightness of the inlet high-pressure gas to the outlet pipeline, two sealing rings 4 and check rings are arranged at the cutter 5, so that the isolation of the inlet and outlet pressure cavities is ensured.

The product is deflated once during operation, so that the use function can be ensured. In the test process before the product is delivered for use, after the sealing cap 7 is cut off by the cutter 5 after each air explosion, the sealing cap 7 can be replaced for repeated use by disassembling the flange connection part.

The above description is the specific embodiment of the present invention and the technical principle applied, and any modification and equivalent transformation based on the technical solution of the present invention should be included in the protection scope of the present invention.