CN211366966U

CN211366966U - Pressure swing adsorption nitrogen making machine for coal mine

Info

Publication number: CN211366966U
Application number: CN201922256713.5U
Authority: CN
Inventors: 黄宏超; 黄杰; 罗剑锋
Original assignee: Hang Zhou Juke Air Separator Installation Manufacture Co ltd
Current assignee: Hang Zhou Juke Air Separator Installation Manufacture Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-08-28
Anticipated expiration: 2029-12-16

Abstract

The utility model relates to a nitrogen making equipment technical field particularly relates to a pressure swing adsorption nitrogen making machine for coal mine. The utility model relates to a pressure swing adsorption nitrogen generator for coal mine, which comprises a purifying device and a nitrogen generating device, wherein the purifying device comprises an air compressor, an air buffer tank, a filter and a dryer, and the air compressor, the air buffer tank, the filter, the dryer and the nitrogen generating device are connected in sequence through a gas transmission pipeline; the nitrogen making device comprises a pressure swing adsorber and a nitrogen tank, wherein the inlet of the pressure swing adsorber is connected with the outlet of the filter through a gas transmission pipeline, the outlet of the pressure swing adsorber is connected with the nitrogen tank through a gas transmission pipeline, and the pressure swing adsorber is fixedly connected with a carbon molecular sieve adsorption device. The utility model has the advantages of the utility model discloses have higher operating stability, can adapt to abominable operational environment in the pit, the nitrogen making is efficient, can satisfy the advantage of the user demand under the colliery.

Description

Pressure swing adsorption nitrogen making machine for coal mine

Technical Field

The utility model relates to a nitrogen making equipment technical field particularly relates to a pressure swing adsorption nitrogen making machine for coal mine.

Background

Gas explosion easily occurs in coal mine excavation, and the life safety of people is threatened. The coal mine gas explosion is that after the gas concentration in the coal mine reaches the explosion limit (5-16%), the gas and oxygen in the air undergo chemical reaction with intense luminescence and heating in a short time when meeting open fire, thereby causing destructive effect. The reasons for reducing the occurrence of explosion are as follows: preventing open fire, isolating oxygen, and reducing gas and oxygen concentration. The requirements for the former two are very strict and difficult to achieve. Therefore, only starting from the aspect of reducing the gas and oxygen concentration, the treatment method in the prior art is mainly used for preparing nitrogen by using a nitrogen making vehicle underground to dilute the gas concentration.

For example, the CN94244603.8 underground coal mine mobile nitrogen making machine discloses the following technical scheme: the colliery is mobile nitrogen generator in pit is one kind and is applied to the device of colliery preparing nitrogen gas in pit to diaphragm type air separation technique, the utility model is characterized in that: the whole mine anti-explosion membrane separation device is composed of a mine anti-explosion air compressor unit (32), a compressed air pretreatment section (33) and a membrane separation section (4), which are connected in series by pipelines (14), (15), (16) and (18) in sequence, are arranged on a flat-plate mine car and can move in a roadway under a coal mine. However, the technology has the defects that the preparation efficiency is low, a large amount of dust, water vapor and other components exist in underground air, and the membrane separation structure of the nitrogen making machine is easily damaged to cause the fault of the nitrogen making machine. Therefore, a pressure swing adsorption nitrogen making machine for coal mines, which can adapt to the underground severe working environment and has higher production efficiency, is needed at present.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the pressure swing adsorption nitrogen making machine for the coal mine is suitable for the underground severe working environment and has high production efficiency. The utility model adopts the following technical scheme:

a pressure swing adsorption nitrogen making machine for coal mines comprises a purifying device and a nitrogen making device, wherein the purifying device comprises an air compressor, an air buffer tank, a filter and a dryer, and the air compressor, the air buffer tank, the filter, the dryer and the nitrogen making device are sequentially connected through a gas transmission pipeline; the nitrogen making device comprises a pressure swing adsorber and a nitrogen tank, wherein the inlet of the pressure swing adsorber is connected with the outlet of the filter through a gas transmission pipeline, the outlet of the pressure swing adsorber is connected with the nitrogen tank through a gas transmission pipeline, and the pressure swing adsorber is fixedly connected with a carbon molecular sieve adsorption device.

The utility model discloses an above-mentioned device can pass through the air compressor machine, air buffer tank stores the air then through dust and the steam that exists in filter and the desiccator deaerate, has improved absorptive purity, thereby guarantees the utility model discloses a pressure swing adsorption ware has stable operational environment, prevents it from breaking down, in addition the utility model discloses a pressure swing adsorption ware can make to the different speed that comes the adjustment nitrogen gas production of environment the utility model discloses a device has better availability factor, has used the nitrogen gas jar simultaneously, is convenient for can directly use the nitrogen gas that prepares in advance in the normal use process, and has reduced the time that the machine moved in the pit, prevents that it from breaking down.

Preferably, a plurality of carbon molecular sieve layers are arranged in the carbon molecular sieve adsorption device, and the carbon molecular sieve layers are hemispherical and convex towards the air inlet direction.

The molecular sieve layer that adopts at present is mostly the plane, and the utility model discloses a hemispherical design can be strengthened the utility model discloses well area of contact with the air, thereby improve the utility model discloses a treatment effeciency, and through preceding filter, desiccator effect, the utility model discloses need not worry the influence of the solid particle in the air when can have great production efficiency to the meeting that does not need anxious spherical molecular sieve layer takes place to damage under great wind-force.

Preferably, the centers of the carbon molecular sieve layers are located on the same straight line, and the radii of the carbon molecular sieve layers are the same.

The utility model adopts the above structure, strengthened the utility model discloses well nitrogen-making's efficiency guarantees simultaneously that gas passes through the molecular sieve layer uniformly, has guaranteed the stability of giving vent to anger, thereby improves the utility model discloses a stability.

Preferably, the gas transmission pipeline is provided with an electromagnetic valve.

The utility model discloses a solenoid valve controls the utility model discloses a rate of giving vent to anger. And the utility model discloses a gas transmission pipeline all is equipped with the solenoid valve and can controls at will the utility model discloses going on of each process, being convenient for the utility model discloses an use and routine maintenance, and can accurate control air current size and gas pressure.

Preferably, the air compressor further comprises a primary filtering device, wherein the primary filtering device is arranged in front of the air compressor, and the primary filtering device is connected with the air compressor through a gas transmission pipeline.

The utility model discloses still set up prefilter

Preferably, the primary filtering device is internally provided with a spraying device and a sewage discharge device, the spraying device is fixedly connected to the top of the primary filtering device, and the sewage discharge device comprises a sewage discharge outlet connected to the bottom of the primary filtering device.

The utility model discloses a device can reduce debris such as dust and get into the possibility of this device to strengthened the utility model discloses a stability of operation.

The beneficial effects of the utility model reside in that 1. the utility model discloses have higher operating stability, can adapt to abominable operational environment in the pit, 2. the utility model discloses nitrogen making is efficient, can satisfy the user demand under the colliery.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a preliminary filtering apparatus;

FIG. 3 is a schematic diagram of a pressure swing adsorber.

Detailed Description

The present invention will be further explained with reference to the following embodiments.

Examples

A pressure swing adsorption nitrogen making machine for coal mines comprises a purifying device 1, a primary filtering device 2 and a nitrogen making device 3, wherein the purifying device 1 comprises an air compressor 11, an air buffer tank 12, a filter 13 and a dryer 14, the primary filtering device 2 is arranged in front of the air compressor 11, the primary filtering device 2 is connected with the air compressor 11 through a gas transmission pipeline 4, and the air compressor 11, the air buffer tank 12, the filter 13, the dryer 14 and the nitrogen making device 3 are sequentially connected through the gas transmission pipeline 4; the nitrogen making device 3 comprises a pressure swing adsorber 31 and a nitrogen tank 32, the inlet of the pressure swing adsorber 31 is connected with the outlet of the filter 13 through a gas transmission pipeline 4, the outlet of the pressure swing adsorber 31 is connected with the nitrogen tank 32 through the gas transmission pipeline 4, and a carbon molecular sieve adsorption device 311 is fixedly connected in the pressure swing adsorber 31. A plurality of carbon molecular sieve layers 3111 are disposed in the carbon molecular sieve adsorption device 311, and the carbon molecular sieve layers 3111 are hemispherical and convex in the air intake direction. The centers of the carbon molecular sieve layers 3111 are located on the same straight line, and the radii of the carbon molecular sieve layers 3111 are the same. The gas pipeline 4 is provided with an electromagnetic valve. Be equipped with spray set 21 and waste fitting discharging 22 in preliminary filter equipment 2, spray set 21 fixed connection is at preliminary filter equipment 2's top, and waste fitting discharging 22 is including connecting the drain 221 in preliminary filter equipment 2's bottom.

In the device use, the air at first gets into primary filter 2, then gets into air compressor machine 11 through impurity such as dust that spray set 21 got rid of wherein, stores in nitrogen gas jar 32 behind air buffer tank 12, filter 13, desiccator 14, pressure swing adsorber 31 afterwards, can directly discharge from nitrogen gas jar 32 when using, if nitrogen gas is used up in nitrogen gas jar 32 and can make fast to accomplish the use, the utility model discloses it is efficient to have the nitrogen making, moves stable advantage.

Claims

1. The utility model provides a pressure swing adsorption nitrogen generator for coal mine, includes purifier and nitrogen generator, its characterized in that: the purification device comprises an air compressor, an air buffer tank, a filter and a dryer, wherein the air compressor, the air buffer tank, the filter, the dryer and the nitrogen making device are sequentially connected through a gas transmission pipeline; the nitrogen making device comprises a pressure swing adsorber and a nitrogen tank, wherein the inlet of the pressure swing adsorber is connected with the outlet of the filter through a gas transmission pipeline, the outlet of the pressure swing adsorber is connected with the nitrogen tank through a gas transmission pipeline, and the pressure swing adsorber is fixedly connected with a carbon molecular sieve adsorption device.

2. The pressure swing adsorption nitrogen generator for coal mines as set forth in claim 1, wherein: the carbon molecular sieve adsorption device is internally provided with a plurality of carbon molecular sieve layers which are hemispherical and convex towards the air inlet direction.

3. The pressure swing adsorption nitrogen generator for coal mines as set forth in claim 2, wherein: the centers of the carbon molecular sieve layers are positioned on the same straight line, and the radiuses of the carbon molecular sieve layers are the same.

4. The pressure swing adsorption nitrogen generator for coal mines as set forth in claim 1 or 3, wherein: the gas transmission pipeline is provided with an electromagnetic valve.

5. The pressure swing adsorption nitrogen generator for coal mines as set forth in claim 4, wherein: still include prefilter, prefilter set up the air compressor machine before, prefilter with the air compressor machine pass through gas transmission pipeline and connect.

6. The pressure swing adsorption nitrogen generator for coal mines as set forth in claim 5, wherein: preliminary filter equipment in be equipped with spray set and waste fitting discharging, spray set fixed connection be in preliminary filter equipment's top, waste fitting discharging including connecting the drain of preliminary filter equipment's bottom.