CN218626882U

CN218626882U - Gas purifier exhaust treatment device

Info

Publication number: CN218626882U
Application number: CN202222836957.2U
Authority: CN
Inventors: 江晓松
Original assignee: Shanghai Xianpu Gas Technology Co ltd
Current assignee: Shanghai Xianpu Gas Technology Co ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-03-14
Anticipated expiration: 2032-10-27

Abstract

The utility model discloses a gas purifier exhaust treatment device belongs to exhaust-gas treatment technical field. It includes the clarifier, still include with the intake pipe of clarifier intercommunication, with the burning furnace that burns that the intake pipe intercommunication is used for handling waste gas, through blast pipe and burn burning furnace intercommunication and parcel at the preheater in the intake pipe outside, through the desicator that outlet duct and preheater intercommunication are used for dry waste gas. The utility model carries out the harmless treatment of burning most harmful waste gas by the burning furnace and carries out the drying and the adsorption of the burnt waste gas by matching with the dryer to remove the residual harmful waste gas; in addition, the heat of the waste gas after combustion can be absorbed and stored by the preheater and used for preheating the harmful waste gas in the air inlet pipe, the speed of heating the harmful waste gas to a burning point is increased, the waste gas treatment efficiency is improved, and energy is saved.

Description

Gas purifier exhaust treatment device

Technical Field

The utility model relates to a gas purifier exhaust treatment device belongs to exhaust-gas treatment technical field.

Background

In recent years, with the rapid development of global hydrogen energy application technology, the application of hydrogen fuel cells is in an industrialized development situation, and the demand of hydrogen energy is remarkably increased. In any case, by which hydrogen gas is produced, crude hydrogen is produced, which inevitably contains various impurities that may have a great influence on the use of hydrogen gas. For example, the sensitive impurities such as sulfide, ammine, halide, etc. in hydrogen gas can damage the fuel cell system, affect the service life and working efficiency, and hydrogen gas containing excessive impurities can generate a large amount of atmospheric pollutants after chemical reaction with oxygen. The crude hydrogen is purified in the later stage, but the purification process can enrich impurities, a large amount of harmful waste gas is generated, the waste gas is directly discharged to pollute the atmosphere, and therefore the harmful waste gas needs to be properly and harmlessly treated.

Disclosure of Invention

The utility model aims to solve the technical problem that: the utility model provides a gas purifier exhaust treatment device, it has solved the problem that current gas purifier can't handle the harmful waste gas that produces in the purification process.

The utility model discloses the technical problem that will solve takes following technical scheme to realize:

the utility model provides a gas purifier exhaust treatment device, includes the clarifier, still includes the intake pipe with the clarifier intercommunication, with the intake pipe intercommunication be used for handling waste gas burn burning furnace, through blast pipe and burn burning furnace intercommunication and parcel at the preheater in the intake pipe outside, through outlet duct and preheater intercommunication be used for the desicator of dry waste gas.

As a preferred example, the incinerator is a thermal incinerator.

As a preferred example, the incinerator is provided with an auxiliary fuel pipe.

As the preferred example, the preheater is including locating the heat storage chamber in the intake pipe outside, heat storage chamber both ends are equipped with air inlet dish and receipts gas dish respectively, air inlet dish and blast pipe intercommunication, receive the gas dish and pass through outlet duct and desicator intercommunication, evenly be equipped with a plurality of heat pipes in the heat storage chamber, the heat pipe both ends all communicate with air inlet dish and receipts gas dish.

As a preferred example, the heat storage chamber contains heat conducting oil.

As a preferred example, the heat storage chamber is provided with an oil inlet and an oil outlet.

As a preferable example, the dryer comprises a dispersion chamber, a drying layer and a discharge port which are arranged in sequence, wherein the dispersion chamber is communicated with an air outlet pipe.

As a preferable example, a baffle is arranged at the communication part of the dispersion cavity and the air outlet pipe.

As a preferable example, the drying layer comprises an activated carbon layer, wherein filter screens are arranged on two sides of the activated carbon layer, and drying cotton is arranged between the filter screens and the activated carbon layer.

The beneficial effects of the utility model are that: the utility model carries out the harmless treatment of burning most harmful waste gas by the burning furnace and carries out the drying and the adsorption of the burnt waste gas by matching with the dryer to remove the residual harmful waste gas; in addition, the heat of the waste gas after combustion can be absorbed and stored by the preheater and used for preheating the harmful waste gas in the air inlet pipe, the speed of heating the harmful waste gas to a burning point is increased, the waste gas treatment efficiency is improved, and energy is saved.

Drawings

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

FIG. 2 is a schematic structural diagram of a preheater according to the present invention;

fig. 3 is a schematic structural diagram of the dryer of the present invention.

In the figure: the device comprises a purifier 1, an air inlet pipe 2, an incinerator 3, an exhaust pipe 4, a preheater 5, a dryer 6, an air inlet disc 7, a heat conduction pipe 8, a heat storage cavity 9, an air collecting disc 10, an air outlet pipe 11, a dispersing cavity 12, a baffle 13, a filter screen 14, dry cotton 15, an activated carbon layer 16 and a discharge port 17.

Detailed Description

In order to understand the technical means, creation features, achievement purposes and functions of the present invention easily, the present invention will be further explained by combining with the specific drawings.

As shown in fig. 1, a gas purifier exhaust treatment device, including clarifier 1, still include intake pipe 2, burn burning furnace 3, blast pipe 4, pre-heater 5 and desicator 6, intake pipe 2 and clarifier 1 intercommunication, it is used for handling waste gas to burn burning furnace 3 and intake pipe 2 intercommunication, 4 one ends of blast pipe and burning furnace 3 intercommunication, the 4 other ends of blast pipe and pre-heater 5 intercommunication and parcel are in the 2 outsides of intake pipe, 11 one end of outlet duct and pre-heater 5 intercommunication, 11 other ends of outlet duct and desicator 6 intercommunication are used for dry waste gas.

The incinerator 3 is a thermal incinerator.

The incinerator 3 is provided with an auxiliary fuel pipe.

The thermal combustion method is a method of adding fuel to assist combustion of exhaust gas when the concentration thereof is low. In thermal combustion, the cleaned exhaust gas is not used as fuel, but as a secondary gas for providing oxygen; when the oxygen content in the exhaust gas is low, air needs to be added for auxiliary combustion. The temperature required by the thermal combustion is lower than that of direct combustion, about 540-820 ℃, and the method is suitable for high-concentration and small-air-volume waste gas.

The process of thermal combustion can be divided into three steps: 1. auxiliary fuel is combusted to provide heat; 2. mixing the waste gas with high-temperature fuel gas to reach reaction temperature; 3. at the reaction temperature, the waste gas is maintained for enough residence time, so that combustible harmful components in the waste gas are oxidized and decomposed, and the aim of purifying the exhaust gas is fulfilled.

The special device for thermal combustion is called a thermal combustion furnace, and the structure of the special device meets the condition requirements during thermal combustion, namely, the special device can ensure that the temperature is over 760 ℃ and the contact time is about 0.55 s. The main structure of the heat combustion furnace comprises two parts: 1. a burner for burning the auxiliary fuel to generate high-temperature gas; 2. the combustor is used for mixing the high-temperature fuel gas with the bypass exhaust gas in a turbulent flow mode to reach a reaction temperature, and enabling the residence time of the exhaust gas in the combustor to reach requirements.

As shown in fig. 2, the preheater 5 includes a heat storage chamber 9 disposed outside the air inlet pipe 2, an air inlet disc 7 and an air collecting disc 10 are respectively disposed at two ends of the heat storage chamber 9, the air inlet disc 7 is communicated with the exhaust pipe 4, the air collecting disc 10 is communicated with the dryer 6 through an air outlet pipe 11, a plurality of heat pipes 8 are uniformly disposed in the heat storage chamber 9, and two ends of each heat pipe 8 are communicated with the air inlet disc 7 and the air collecting disc 10.

The heat storage cavity 9 contains heat conducting oil.

Waste gas after burning evenly passes through a plurality of heat pipes 8 after getting into air inlet plate 7 from blast pipe 4 to collect through receipts gas dish 10 and then discharge into the desicator from outlet duct 11, the heat of waste gas after burning conducts to heat-retaining chamber 9 through the 8 pipe walls of heat pipe, and is absorbed the storage by the heat conduction liquid (mainly for the conduction oil) in the heat-retaining chamber 9, thereby heats 2 pipe walls of intake pipe, realizes carrying out the preheating treatment to the waste gas in the intake pipe 2.

The heat storage cavity 9 is provided with an oil inlet and an oil outlet; the heat storage cavity 9 realizes the quick replacement of the heat conduction oil by arranging the oil inlet and the oil outlet, and the heat conduction oil can release the pressure which is increased rapidly in the heat storage cavity 9 due to the increased heated volume when the heat storage is carried out, so that the shell of the air inlet pipe 2, the heat conduction pipe 8 and the shell of the preheater 5 are prevented from being damaged.

As shown in fig. 3, the dryer 6 includes a dispersion chamber 12, a drying layer, and a discharge port 17, which are sequentially disposed, and the dispersion chamber 12 is communicated with the gas outlet pipe 11.

A baffle 13 is arranged at the communication part of the dispersion cavity 12 and the air outlet pipe 11. The baffle 13 can scatter the airflow sprayed by the air outlet pipe 11, so that the exhaust airflow uniformly passes through the drying layer, and the problem that the drying layer attached to the shell of the dryer cannot realize the adsorption function because only the middle part of the drying layer realizes the adsorption function to cause rapid adsorption saturation is avoided; and the baffle 13 can prevent the air flow of the air outlet pipe 11 from directly impacting the drying layer, so that the part of the drying layer opposite to the opening of the air outlet pipe 11 is damaged.

The drying layer comprises an activated carbon layer 16, filter screens 14 are arranged on two sides of the activated carbon layer 16, and drying cotton 15 is arranged between the filter screens 14 and the activated carbon layer 16.

The filter screen 14 can realize the support function and prevent that outside foreign matter from getting into activated carbon layer 16, and dry cotton 15 can separation filter screen 14 and activated carbon layer 16, prevents that the activated carbon in the activated carbon layer 16 from blockking up filter screen 14 or getting into outlet duct 11, and activated carbon layer 16 is arranged in the steam and the remaining harmful gas in the waste gas after the adsorption combustion, further promotes harmful gas's treatment accuracy.

The working principle is as follows: when using, gas purification ware 1 carries out the purification back to crude hydrogen, let in burning furnace 3 through intake pipe 2 with harmful waste gas, burn burning furnace 3 and burn most harmful waste gas innocent treatment, waste gas after burning passes through blast pipe 4 and lets in pre-heater 5 after that, the heat absorption storage of waste gas after will burning is used for preheating to the harmful waste gas in intake pipe 2, promote the speed that harmful waste gas heaies up to the ignition point, promote exhaust-gas treatment efficiency and energy saving, then the waste gas after the cooling treatment is let in desicator 6 by outlet duct 11, desicator 6 carries out drying and absorption to the waste gas after burning, get rid of remaining fractional harmful waste gas.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A gas purifier exhaust gas treatment device comprising a purifier (1), characterized in that: still include intake pipe (2) with clarifier (1) intercommunication, with intake pipe (2) intercommunication be used for handling waste gas burn burning furnace (3), through blast pipe (4) and burn burning furnace (3) intercommunication and parcel at intake pipe (2) outside preheater (5), through outlet duct (11) and preheater (5) intercommunication be used for dry waste gas desicator (6).

2. A gas purifier exhaust gas treatment device according to claim 1, wherein: the incinerator (3) is a thermal combustion furnace.

3. A gas purifier exhaust gas treatment device according to claim 1, wherein: the incinerator (3) is provided with an auxiliary fuel pipe.

4. A gas purifier exhaust gas treatment device according to claim 1, wherein: preheater (5) are including locating heat-retaining chamber (9) in intake pipe (2) outside, heat-retaining chamber (9) both ends are equipped with respectively admits air and coil (7) and receive gas dish (10), admit air dish (7) and blast pipe (4) intercommunication, receive gas dish (10) through outlet duct (11) and desicator (6) intercommunication, evenly be equipped with a plurality of heat pipes (8) in heat-retaining chamber (9), heat pipe (8) both ends all with admit air dish (7) and receive gas dish (10) intercommunication.

5. The gas purifier exhaust gas treatment device according to claim 4, wherein: the heat storage cavity (9) contains heat conduction oil.

6. A gas purifier exhaust gas treatment device according to claim 4, wherein: the heat storage cavity (9) is provided with an oil inlet and an oil outlet.

7. A gas purifier exhaust gas treatment device according to claim 1, wherein: the dryer (6) comprises a dispersion cavity (12), a drying layer and a discharge port (17) which are sequentially arranged, wherein the dispersion cavity (12) is communicated with the gas outlet pipe (11).

8. The gas purifier off-gas treatment device of claim 7, wherein: a baffle (13) is arranged at the communication part of the dispersion cavity (12) and the air outlet pipe (11).

9. A gas purifier exhaust gas treatment device according to claim 7, wherein: the dry layer includes activated carbon layer (16), activated carbon layer (16) both sides all are equipped with filter screen (14), be equipped with dry cotton (15) between filter screen (14) and activated carbon layer (16).