CN201441871U

CN201441871U - Gas filtering and purifying device of straw gasifier

Info

Publication number: CN201441871U
Application number: CN2009200201749U
Authority: CN
Inventors: 刘德胜; 李福义
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-03
Filing date: 2009-04-03
Publication date: 2010-04-28
Anticipated expiration: 2019-04-03

Abstract

The utility model relates to a gas filtering and purifying device of a straw gasifier, which belongs to the field of separating devices utilizing physical methods. A gas inlet pipe is mounted at the upper end of a water box, the lower end opening of the gas inlet pipe is arranged on the bottom of the water box, a drainage pipe communicated with an inner cavity of the water box is mounted on the bottom of the water box, a drainage valve is mounted on the drainage pipe, the upper end of the lateral wall of the water box is fixed with a gas outlet pipe, the lower end of the lateral wall of the water box is connected with a water pipe, and the end of the water pipe is respectively connected with a water filling box and an overflow pipe via a tee joint. The gas filtering and purifying device is simple in structure and convenient in use, cooled tar and water content in gas of the gasifier are discharged from the drainage pipe, absorbing medium such as straws and the like are removed, and then purposes of cooling gas and filtering dust, tar and steam are achieved by aid of water bath of gas. Besides, residual water is discharged automatically from the overflow pipe, and height of liquid level and gas pressure can be controlled automatically.

Description

Stalk gasifier combustion gas filtering and purifying

Technical field

The utility model relates to the separator field of adopting physical method, and is especially a kind of to the combustion gas that produced in the straw gasifying process and the separating and filtering purifier of tar and moisture.

Background technology

As everyone knows, existing straw gasification stove is in carrying out fuel gas isolation of purified process, no matter be to filter or wet filter with dry type, because of water vapour and tar too much, in case adsorbate reaches capacity during state, need change adsorbates such as straw aperiodically with regard to no longer adsorbing, otherwise cause filtration purifier to stop up or do not have filtered tar, the effect of moisture, influence the normal use of gasification furnace, can not produce stable fuel gas, in addition, in straw gasification stove combustion gas production process, because of the condition and the Pintsch process process that must possess anoxycausis in the gas generator, this has just made a pair of contradiction to gas generator, should burn and obtains high temperature, and sufficient oxygen can not be provided again, thereby caused gaseous-pressure low excessively, the phenomenon of filtration difficulty.

Summary of the invention

In order to overcome the prior art deficiency, the utility model provides a kind of stalk gasifier combustion gas filtering and purifying, discharge from blow-off pipe tar in the fuel gas of gasifying furnace, moisture cooling back, adsorbing mediums such as straw have been removed from, water-bath by combustion gas, thereby the purpose of reach the cooling combustion gas, filtering dust, tar and water vapour, unnecessary water is discharged automatically from overflow pipe, controls liquid level and gaseous-pressure automatically.

The technical scheme in the invention for solving the technical problem is: a kind of stalk gasifier combustion gas filtering and purifying, be provided with the water box, the upper end of water box is equipped with air inlet pipe, the lower port of air inlet pipe is positioned at the bottom of water box, water box bottom is equipped with the blow-off pipe with water box intracavity inter-connection, and blowoff valve is installed on the blow-off pipe, and the upper end of water box sidewall is fixed with escape pipe, the lower end of water box sidewall is connected with water pipe, and the water pipe end is connected with water injection box and overflow pipe respectively through threeway.

The beneficial effects of the utility model are, simple in structure, easy to use, discharge from blow-off pipe tar in the fuel gas of gasifying furnace, moisture cooling back, adsorbing mediums such as straw have been removed from, water-bath by combustion gas, thereby the purpose of reach the cooling combustion gas, filtering dust, tar and water vapour, unnecessary water is discharged automatically from overflow pipe, controls liquid level and gaseous-pressure automatically.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a structural representation of the present utility model.

1. water boxes among the figure, 2. escape pipe, 3. air inlet pipe, 4. water injection box, 5. overflow pipe, 6. blow-off pipe, 7. blowoff valve, 8. filtered water.

The specific embodiment

Shown in Figure 1, the utility model is provided with water box 1, the upper end of water box 1 is equipped with air inlet pipe 3, the lower port of air inlet pipe 3 is positioned at the bottom of water box 1, air inlet pipe 3 upper ends are connected with the fuel gas gas outlet of straw gasification stove, water box 1 bottom is equipped with the blow-off pipe 6 with water box intracavity inter-connection, blowoff valve 7 is installed on the blow-off pipe 6, the upper end of water box 1 sidewall is fixed with escape pipe 2, escape pipe 2 is connected with the top of water box 1 cavity, the lower end of water box 1 sidewall is connected with the water pipe that is connected with water box 1 cavity bottom, and the water pipe other end is connected with water injection box 4 and overflow pipe 5 respectively through threeway.

When the utility model uses, the position of water from water injection box 4 is injected into the inner chamber of water box 1 through water pipe, after in water is injected into water box 1, when liquid level rises to the height of overflow pipe 5, just no longer rise, at this moment can stop to add water, in the filtered water 8 of fuel gas in air inlet pipe 3 enters the water box, it is carried out filtration, purification, enter kitchen range through escape pipe 2 then, when the tar in the combustion gas and moisture focus in the water box 1, unnecessary filtered water 8 is discharged automatically through overflow pipe 5, and it is constant that liquid level is remained, when filtered water 8 is dirty, open blowoff valve 7 and concentrate discharge, unified discharging.

Claims

1. stalk gasifier combustion gas filtering and purifying, be provided with the water box, it is characterized in that: the upper end of water box is equipped with air inlet pipe, the lower port of air inlet pipe is positioned at the bottom of water box, water box bottom is equipped with the blow-off pipe with water box intracavity inter-connection, and blowoff valve is installed on the blow-off pipe, and the upper end of water box sidewall is fixed with escape pipe, the lower end of water box sidewall is connected with water pipe, and the water pipe end is connected with water injection box and overflow pipe respectively through threeway.