CN218565136U - Safe conveying device for high-pressure combustible explosive experimental gas - Google Patents

Abstract

The utility model discloses a safe conveyor of combustible explosive nature experimental gas of high pressure belongs to dangerous gas transport technical field, include a plurality of air supply systems, sweep evacuating device, first parallel pipeline and second parallel pipeline, every air supply system all includes gas supply device and the gas supply mouth that is linked together through the gas supply line, sweep evacuating device including sweeping device and evacuating device, it passes through to sweep the device first parallel pipeline with being close to of gas supply line gas supply device one end is connected, evacuating device passes through second parallel pipeline with being close to of gas supply line gas supply mouth one end is connected, evacuating device is including setting up last tail outlet on the gas supply line, when sweeping the gas supply line, other gas supply line also can last the gas supply with not being influenced.

Description

Safe conveying device for high-pressure combustible explosive experimental gas

Technical Field

The utility model relates to a hazardous gas carries technical field, especially a gaseous safe conveyor of combustible explosive experiment of high pressure.

Background

With the support of social demands and national policies, the development of new energy, materials, microelectronics, photovoltaics, biomedical and other related hot spot industries is directly promoted, and various scientific research institutions and university laboratories use gas utilization equipment to different degrees, such as: i CP (In Du Ctiv E Coupl E D Plasma Emission Sp E Ctrom Et Er, inductively coupled Plasma spectrometer), pe CV D (Plasma Enhan C E D Ch Emi Cal Vapor deposition D Eposition), coater, burner, gas chromatograph, etc. Since the equipment for using the gas is relatively special, the requirements for the gas used will also be relatively special. The extra-gas supply system is the most dangerous one, and any loss may cause serious loss of personnel, factory buildings and equipment, especially some gases such as SiH ₄ The spontaneous combustibility of (1) can react with oxygen in the air violently to start combustion as soon as leakage occurs; also comprises AsH ₃ The need for safety in the design of the system is particularly high because of the obvious danger that any minor leakage may pose a hazard to human life. Often times, the serious danger event is one in which the person neglects the danger or is unaware of its natureOr even due to carelessness in human operation and maintenance.

Many gases have also been used in a large number in all kinds of scientific research institute and college's laboratory, gaseous kind is no longer some inert gas, also contained inflammable and explosive or poisonous rotten gas, increased very big degree of difficulty to experimental safety, because all kinds of scientific research institutes and college's laboratory have very big uncertainty in the direction of research again, the gas kind of experiment usefulness is various, the quantity is few, after the air feed is accomplished, often need clean the gas in the pipeline, and the supply of multiple type of gas just needs a plurality of independent pipelines, all need set up to sweep and pressurize module to every pipeline, the valve part cost promotes by a wide margin.

Patent CN110307468A discloses a safe conveying device for flammable and explosive gases, which comprises a cabinet body, wherein an operation control panel for conveying gases is arranged inside the cabinet body, two symmetrically arranged steel bottle placing grooves are arranged at the bottom end of the cabinet body, steel bottles are placed on the steel bottle placing grooves, and the steel bottles are respectively connected with the operation control panel through pipelines; an air supply module, a blowing module, an exhaust module, a pressure maintaining module and a safety interlocking module are arranged in the operation control panel; the top of the cabinet body is equipped with and is used for control the controller of operation control panel operation work utilizes the design of the interior double bottle supply of operation control panel, has guaranteed that the air feed is incessant, however, only is applicable to the incessant supply of the same gas in this patent, can't be applied to multiple type of gaseous independent supply to independently sweep and pressurize the pipeline.

Disclosure of Invention

The utility model aims at solving the technical problem, providing a gaseous safe conveyor of flammable explosive experiment of high pressure, all be connected a plurality of gas supply devices through the parallel connection pipeline with the evacuating device that sweeps, realized sweeping a module of the pipeline sharing of multiple different gases and each other not influencing.

In order to achieve the above purpose, the utility model provides a following scheme: the utility model provides a gaseous safe conveyor of combustible explosive nature experiment of high pressure, include a plurality of gas supply systems, sweep evacuating device, first parallel connection pipeline and second parallel connection pipeline, every the gas supply system all includes gas supply device and the gas supply mouth that is linked together through the gas supply line, sweep evacuating device including sweeping device and evacuating device, sweep the device and pass through first parallel connection pipeline with being close to of gas supply line gas supply device one end is connected, evacuating device passes through second parallel connection pipeline with being close to of gas supply line gas supply mouth one end is connected, evacuating device is including setting up last tail row mouth of gas supply line.

Preferably, the first parallel pipeline and the second parallel pipeline are provided with gas supply reservation modules.

Preferably, the gas supply device comprises a steel cylinder, and the gas supply pipeline comprises a gas inlet steel cylinder interface breaker, a pressure sensor, a gasket filter, a pipeline pressure reducing valve, a self-operated control pressure regulating valve and a pressure gauge, a pneumatic isolating valve, a pressure sensor, an overcurrent protection switch, a filter, a pneumatic isolating valve, a manual isolating valve and a steel cylinder breaker which are sequentially arranged from the steel cylinder to the gas supply port according to a gas flow sequence.

Preferably, the purging and vacuumizing device comprises a low-pressure nitrogen inlet pipeline butt joint shutoff device, a pneumatic micro-leakage valve, a one-way valve, a pneumatic isolation valve and a pressure sensor which are sequentially arranged from the purging device to the first parallel pipeline according to a gas flow sequence.

Preferably, the purging device purges the gas supply pipeline to the tail discharge port and comprises a check valve, a pneumatic isolation valve, a pressure sensor, a gasket filter, a pipeline pressure reducing valve, a self-operated control pressure regulating valve, a pressure gauge, a pneumatic isolation valve, a check valve, a pressure sensor, a vacuum generator and a port shutoff device which are sequentially arranged according to a gas flow sequence.

Preferably, the evacuating device further comprises an air inlet prevention pipeline connected with the vacuum generator, the air inlet prevention pipeline comprises a low-pressure nitrogen inlet, and the low-pressure nitrogen inlet reaches the vacuum generator, and the low-pressure nitrogen inlet comprises an interface shutoff device, a pneumatic micro-leakage valve and a one-way valve which are sequentially arranged according to a gas flow sequence.

Preferably, still include high-pressure pressurize leak hunting device, high-pressure pressurize lateral leak hunting device through first parallel connection pipeline with being close to of gas supply line gas supply device one end is connected, high-pressure pressurize leak hunting device include by high-pressure pressurize leak hunting device extremely first parallel connection pipeline links to each other in proper order according to the gas flow order high-pressure nitrogen gas entry pipeline to interface shutoff ware, pneumatic isolating valve and pressure sensor.

Preferably, the pressure maintaining pipeline of the gas supply pipeline for maintaining pressure by the high-pressure maintaining and leakage detecting device comprises a one-way valve, a pneumatic isolating valve, a pressure sensor and an air inlet steel cylinder interface shutoff device which are sequentially arranged according to a gas flowing sequence.

Preferably, still include the safety guarantee module, the safety guarantee module is including setting up flame detector, gas detector in the safety transport device, the convulsions is reported to the police, the exhaust pipeline, high temperature switch, the fire control sprays, the alarm is felt to the cigarette, the exhaust pipeline will safety transport device and external environment intercommunication.

Preferably, the safety conveying device comprises a single chip microcomputer which is electrically connected with all electric control devices in the safety conveying device.

The utility model discloses for prior art gain following technological effect:

1. the utility model discloses in, all be connected a plurality of gas supply device through parallel connection pipeline and purging evacuating device and high-pressure pressurize leak hunting device, realized purging and the gaseous pipeline sharing module of the multiple different of pressurize, and can independently purge respectively each air supply line, when purging one of them air supply line, other air supply line and the valve between the first parallel connection pipeline turn-offs, can make each air supply line when purging or pressurize, other air supply lines also can last the air feed unaffected.

2. In the utility model, the gas detector in the safety guarantee module constantly monitors the gas leakage condition in the conveying device, and constantly keeps the pressure difference between the inside of the device and the external environment stable through the exhaust pipe; whether flame and smog are produced in the flame detector and the smoke detector detection device, and the device can be extinguished through fire sprinkler.

3. The utility model discloses in, to the gaseous kind in all kinds of scientific research institute and the university laboratory various, and the general condition less with tolerance, adopt the supply mode of multiple gaseous parallel connection, the valve member quantity that has significantly reduced has better solved the high problem of equipment fund under the prerequisite of guaranteeing safety.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a gas supply system of a safe transportation device for high-pressure combustible explosive experimental gas;

FIG. 2 is a schematic structural diagram of a purging and vacuum-pumping system of a safe transportation device for high-pressure combustible explosive experimental gas;

FIG. 3 is a schematic structural diagram of a pressure maintaining system of a safe transportation device for high-pressure combustible explosive experimental gas;

FIG. 4 is a schematic diagram of a safety control system of a safety transportation device for high-pressure combustible explosive experimental gas;

description of the reference numerals: a1, an air inlet steel cylinder interface shutoff device; a2, a pressure sensor; a3, a gasket filter; a4, a pipeline pressure reducing valve; a5, a self-operated control pressure regulating valve and a pressure gauge; a6, a pneumatic isolating valve; a7, a pressure sensor; a8, an overcurrent protection switch; a9, a filter; a10, a pneumatic isolating valve; a11, a manual isolation valve; a12, a steel cylinder shutoff device; b1, an air inlet steel cylinder interface shutoff device; b2, a pressure sensor; b3, a gasket filter; b4, a pipeline pressure reducing valve; b5, self-operated control pressure regulating valve and pressure gauge; b6, a pneumatic isolating valve; b7, a pressure sensor; b8, an overcurrent protection switch; b9, a filter; b10, a pneumatic isolating valve; b11, a manual isolation valve; b12, a steel cylinder shutoff device; c1, a low-pressure nitrogen inlet pipeline is connected with a port shutoff device; c2, a pneumatic micro-leakage valve; c3, a one-way valve; c4, a pneumatic isolating valve; c5, a pressure sensor; c6, a pressure sensor, C7 and a vacuum generator; c8, an interface shutoff device; c9, a one-way valve; c10, a pneumatic micro-leakage valve; c11, an interface shutoff device; C1A, a one-way valve; C2A, a pneumatic isolation valve; d1, connecting a high-pressure nitrogen inlet pipeline to a port shutoff device; d2, a pneumatic isolating valve; e1, a flame detector; e2, a gas detector; e3, air draft alarm; e4, an exhaust pipeline; e5, high-temperature switching; e6, fire-fighting spraying; e7, a smoke alarm.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The embodiment provides a safe conveyor of flammable explosive nature experimental gas of high pressure, as shown in fig. 1, including two gas supply systems, sweep evacuating device, first parallelly connected pipeline 1 and second parallelly connected pipeline 2, two gas supply systems all include gas supply device 4 and the gas supply mouth that is linked together through gas supply line 3, sweep evacuating device is including sweeping device and evacuating device, sweep the device and be connected through the gas supply device 4 one end that is close to of first parallelly connected pipeline 1 and gas supply line 3, evacuating device passes through second parallelly connected pipeline 2 is connected with gas supply mouth one end that is close to of gas supply line 3, evacuating device is including setting up the tail gate on gas supply line 3, sweeps the device and blows in low pressure nitrogen gas to the gas supply line in, low pressure nitrogen gas can let in two independent gas supply lines respectively through first parallelly connected pipeline, when sweeping one of them gas supply line, the valve between other gas supply line and the first parallelly connected pipeline is shut off, can make each gas supply line sweep or when maintaining pressure, other gas supply lines also can last not influenced.

Preferably, as shown in fig. 4, the first parallel connection pipeline 1 and the second parallel connection pipeline 2 are provided with a gas supply reservation module, the gas supply reservation module includes a reserved interface plug E8, a reserved interface plug E9 and a reserved interface plug E10, and the gas supply reservation module can expand the device to increase other gas supply devices 4 and gas supply pipelines 3, so that the use of various gases is more flexible, and the expansion of various gases is realized.

Further, the reserved interface plug E8, the reserved interface plug E9, and the reserved interface plug E10 in this embodiment can be connected in parallel with a plurality of gas interfaces, thereby realizing more kinds of gas expansion.

Preferably, as shown in fig. 1, the flow of the gas supply system supplying gas is as follows: the gas cylinder passes through gas cylinder interface shutoff device A1 and gets into the pipeline with gas conveying, through pressure sensor A2, detect out the gas pressure of steel cylinder, get rid of the impurity in the gas through gasket filter A3, reduce gas pressure through pipeline relief pressure valve A4 one-level decompression, through the second grade decompression of self-operated control air-vent valve and manometer A5 to pipeline pressure, the outlet pressure can be accurately controlled to the self-operated control air-vent valve, after through pneumatic isolating valve A6, outlet gas pressure can be detected out to pressure sensor A7, gas passes through overcurrent protection switch A8, filter A9, pneumatic isolating valve A10, manual isolating valve A11, steel cylinder shutoff device A12, direct supply is to experimental facilities. The pneumatic isolation valve A6 and the pneumatic isolation valve A10 can realize remote control gas supply and shutoff through a single chip microcomputer, the overcurrent protection switch A8 detects the flow of gas when the gas passes through, and the gas supply can be shut off emergently when the rear end leakage gas flow is too large. Similarly, the gas flow paths of the second experimental gas supply device 4 and the gas supply device 4 expanded by the reserved interface plug E8 are the same as those of the first experimental gas supply device 4.

In this embodiment, as shown in fig. 1 and fig. 2, in the purging and vacuumizing system of the safety transportation device for high-pressure combustible explosive test gas, the flow of purging and vacuumizing is as follows: in the purging device, low-pressure nitrogen gas is connected to a port shutoff valve C1, a pneumatic micro-leakage valve C2 and a check valve C3 through a low-pressure nitrogen gas inlet pipeline, the check valve C3 prevents process gas from flowing back to a purging nitrogen gas pipeline, then the process gas is detected by the pneumatic isolation valve C4, the pressure sensor C5 and the pressure sensor C5, the process gas is divided into a left purging pipeline and a right purging pipeline through a first parallel pipeline 1, the left purging pipeline and the right purging pipeline are respectively a first experiment gas purging pipeline and a second experiment gas purging pipeline, the low-pressure nitrogen gas in the first experiment gas purging pipeline sequentially passes through the check valve C1A, the pneumatic isolation valve C2A, the pressure sensor A2, a gasket filter A3, a pipeline pressure reducing valve A4, a self-operated control pressure regulating valve and a pressure gauge A5, the pneumatic isolation valve A6, the pneumatic isolation valve C3A, the check valve C4A, the pressure sensor C6, a vacuum generator C7 and the port shutoff valve C8, the pneumatic isolation valve C4A can be opened and closed through the control of the pneumatic isolation valve to control of a gas source, when the pneumatic isolation valve C4A 4 and the pneumatic isolation valve C2A are opened, the cylinder is evacuated, the pneumatic isolation valve enters the pneumatic isolation valve, the pneumatic isolation valve C2A, the pneumatic isolation valve is evacuated, and the pneumatic isolation valve C2A is repeatedly opened, and the pneumatic isolation valve C3A, and the pneumatic isolation valve is evacuated, and the pneumatic isolation valve is repeatedly purged in the purging pipeline, and the port of the isolation valve C2A 50 times. In the vacuum pumping device, a low-pressure nitrogen inlet passes through a pipeline and an interface shutoff device C11, a pneumatic micro-leakage valve C10, a check valve C9, a vacuum generator C7 and an interface shutoff device C8, after low-pressure nitrogen passes through the vacuum generator C7, the vacuum generator C7 can generate pressure difference, the pipeline gas is pumped out by utilizing the suction force of the pressure difference, the pneumatic micro-leakage valve C10 keeps airflow in the pipeline constantly, and the air at a tail discharge port is prevented from entering the pipeline.

In this embodiment, as shown in fig. 1, fig. 2, and fig. 3, in the purging and vacuum-pumping system of the safety transportation device for high-pressure combustible explosive test gas, the flow of high-pressure maintaining and leak detection is as follows: high-pressure nitrogen gas passes through interface shutoff device D1, pneumatic isolating valve D2, pressure sensor C5 reachs and connects the pipeline, back share left and right sides pipeline carries out the pressurize to first experimental gas and second experimental gas bottleneck pressure respectively, then high-pressure nitrogen gas passes through check valve C1A, pneumatic isolating valve C2A, pressure sensor A2, the steel bottle interface shutoff device A1 that admits air, high-pressure nitrogen gas passes through pneumatic isolating valve D2, pressure sensor C5, check valve C1A, pneumatic isolating valve C2A, pressure sensor A2, be full of high-pressure nitrogen gas at steel bottle connection entrance, back pneumatic isolating valve closes, monitor gas pressure through pressure sensor A2 and pressure sensor C5 and change, thereby detect the leakage condition of pipeline.

In this embodiment, as shown in fig. 4, in the safety assurance module, a gas detector E2 determines whether gas leaks by detecting the content of gas in the gas holder, and the valve is turned off in an emergency when gas leaks; the air draft alarm E3 is matched with the exhaust pipe E4 for use, so that the pressure difference between the inside and the outside of the special gas cabinet is constantly ensured to be stable, and the exhaust pipe E4 can quickly draw out gas in the cabinet when a valve leaks; when the high-temperature switch E5 is turned on and the flame detector E1 detects that the fire is on, the fire is extinguished through the fire sprinkler E6, and the smoke detector alarm E7 gives an alarm when detecting smoke.

In this embodiment, all pneumatic isolation valves are all controlled by the singlechip, can realize the automatic operation of functions such as air feed, sweep, pressurize through simple program logic, reduce the operation degree of difficulty, reduce the risk of artificial maloperation.

The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims (10)

1. The utility model provides a gaseous safe conveyor of flammable explosive nature experiment of high pressure, its characterized in that includes a plurality of gas supply systems, sweeps evacuating device, first parallel pipeline (1) and second parallel pipeline (2), every gas supply system all includes gas supply (4) and gas supply mouth that are linked together through gas supply line (3), sweep evacuating device including sweeping device and evacuating device, it passes through to sweep the device first parallel pipeline (1) with being close to of gas supply line (3) gas supply (4) one end is connected, evacuating device passes through second parallel pipeline (2) with being close to of gas supply line (3) gas supply mouth one end is connected, evacuating device is including setting up tail row mouth on gas supply line (3).

2. The safe transportation device for the high-pressure combustible explosive experimental gas as claimed in claim 1, wherein gas supply reservation modules are arranged on the first parallel pipeline (1) and the second parallel pipeline (2).

3. The safe transportation device for the high-pressure combustible explosive experimental gas according to claim 1, characterized in that the gas supply device (4) comprises a steel cylinder, and the gas supply pipeline (3) comprises a gas inlet steel cylinder interface shutoff device (A1), a pressure sensor (A2), a gasket filter (A3), a pipeline pressure reducing valve (A4), a self-operated control pressure regulating valve and pressure gauge (A5), a pneumatic isolation valve (A6), a pressure sensor (A7), an overcurrent protection switch (A8), a filter (A9), a pneumatic isolation valve (A10), a manual isolation valve (A11) and a steel cylinder shutoff device (A12) which are sequentially arranged from the steel cylinder to the gas supply port according to a gas flow sequence.

4. The safe transportation device for the high-pressure combustible explosive experimental gas as claimed in claim 1, wherein the purging and vacuumizing device comprises a low-pressure nitrogen inlet pipeline butt joint closing device (C1), a pneumatic micro-leakage valve (C2), a one-way valve (C3), a pneumatic isolation valve (C4) and a pressure sensor (C5) which are sequentially arranged from the purging device to the first parallel pipeline (1) according to a gas flow sequence.

5. The safe transportation device for the high-pressure combustible explosive experimental gas according to claim 4, wherein the purging device purges the gas supply pipeline (3) to the tail discharge port and comprises a check valve (C1A), a pneumatic isolation valve (C2A), a pressure sensor (A2), a gasket filter (A3), a pipeline pressure reducing valve (A4), a self-operated control pressure regulating valve and pressure gauge (A5), a pneumatic isolation valve (A6), a pneumatic isolation valve (C3A), a check valve (C4A), a pressure sensor (C6), a vacuum generator (C7) and an interface shutoff device (C8) which are sequentially arranged according to a gas flow sequence.

6. The safe transportation device for the high-pressure combustible explosive experimental gas as claimed in claim 5, wherein the vacuumizing device further comprises an air-inlet-preventing pipeline connected with the vacuum generator (C7), the air-inlet-preventing pipeline comprises a low-pressure nitrogen inlet, and the low-pressure nitrogen inlet and the vacuum generator (C7) comprise an interface shutoff device (C11), a pneumatic micro-leakage valve (C10) and a one-way valve (C9) which are sequentially arranged according to a gas flow sequence.

7. The safe transportation device for the high-pressure combustible explosive experimental gas according to claim 1, further comprising a high-pressure-maintaining leakage detection device, wherein the high-pressure-maintaining leakage detection device is connected with one end, close to the gas supply device (4), of the gas supply pipeline (3) through a first parallel connection pipeline (1), and comprises a high-pressure nitrogen inlet pipeline, a joint shutoff device (D1), a pneumatic isolation valve (D2) and a pressure sensor (C5), which are sequentially connected from the high-pressure-maintaining leakage detection device to the first parallel connection pipeline (1) according to a gas flow sequence.

8. The device for safely transporting high-pressure combustible explosive experimental gas according to claim 7, wherein the pressure maintaining pipeline of the high-pressure maintaining and leakage detecting device for maintaining pressure of the gas supply pipeline (3) comprises a one-way valve (C1A), a pneumatic isolating valve (C2A), a pressure sensor (A2) and an inlet cylinder interface shutoff device (A1) which are sequentially arranged according to a gas flowing order.

9. The safe transportation device of the high-pressure combustible explosive experimental gas as claimed in claim 1, further comprising a safety guarantee module, wherein the safety guarantee module comprises a flame detector (E1), a gas detector (E2), an air draft alarm (E3), an air draft pipeline (E4), a high-temperature switch (E5), a fire sprinkler (E6) and a smoke alarm (E7), and the air draft pipeline (E4) is used for communicating the safe transportation device with the external environment.

10. The safe transportation device for the high-pressure combustible explosive experimental gas as claimed in any one of claims 1 to 9, which is characterized by comprising a single chip microcomputer electrically connected with all electric control devices in the safe transportation device.

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