CN201165514Y - Negative pressure energy-saving and environment-friendly gas generator and gas purification device - Google Patents

Abstract

The utility model provides a negative-pressure energy-saving and environment-friendly gas generator and a gas purification device, comprising a furnace body, an air channel arranged below the furnace body, a furnace bar and a furnace chamber above it, and a furnace cover arranged above the furnace body. It is characterized in that a refractory layer is provided in the furnace, and a gas and flue gas suction pipe is arranged on the furnace, and the other end of the gas and flue gas suction pipe passes through the furnace wall and is connected with the exhaust pipe connected to the exhaust fan outside the furnace. Between the gas and flue gas suction pipe and the exhaust fan, a heat exchanger with a gas inlet and outlet, a water inlet and an outlet, and a heat exchange water jacket is arranged on it, and a gas inlet and outlet are arranged on it, and a gas inlet and outlet are arranged on it. Gas cleaner for water sprinkler. It changes the traditional blow-in combustion to suction-type combustion, which not only increases the combustion temperature of the furnace, reduces heat loss, prolongs its service life, but also effectively utilizes the heat energy of gas and flue gas to heat water and then provides steam and boiling water to users, saving energy and reducing consumption. Obviously, and provide users with clean gas with high fuel value, high firepower and no pollution.

Description

Negative pressure energy-saving and environment-friendly gas generator and gas purification device

technical field

The utility model relates to a gas generator, in particular to an energy-saving and environment-friendly gas generator.

Background technique

The gas generators currently in use are all of the positive pressure type of air blast, that is, air is blasted from the bottom of the furnace body to burn the fuel coal in the furnace. This type of coal gasifier has the following disadvantages: (1) complex structure, difficult processing, time-consuming and material-consuming, and in order to improve safety performance, it is necessary to increase the thickness of the steel plate, thereby increasing production costs, which is difficult for users to bear; (2) combustion Only the water-cooled furnace can be used in the chamber, so the service life is short and the operation cost is high; (3) Although the water-cooled jacket can provide fuel gas and hot water at the same time, there are major safety hazards such as increased pressure; (4) The ventilation pipe is easy to It is blocked by coal tar, ash and water in the gas, which affects the smoothness of the gas and makes it difficult to increase the firepower. Therefore, it is absolutely necessary to improve the prior art.

Contents of the invention

In order to overcome the above-mentioned many deficiencies in the prior art, the utility model provides a negative-pressure energy-saving and environment-friendly gas generator.

The utility model also provides a gas purification device with a negative pressure energy-saving and environment-friendly gas generator.

The utility model is completed through the following technical proposals: a negative pressure energy-saving and environment-friendly gas generator, including a furnace body, an air duct arranged below the furnace body, a furnace bar and a furnace chamber above it, and a furnace cover arranged above the furnace body, It is characterized in that there is a refractory layer in the furnace, and a gas and flue gas suction pipe is arranged on the furnace. The machine generates negative pressure in the furnace to burn the fuel in the furnace, and at the same time extracts the gas and flue gas produced by the combustion.

The refractory layer is arranged for a circle along the inner wall of the furnace, and is thinner at the top and thicker at the bottom, so as to protect the shell of the furnace body from heat, increase the temperature in the furnace, and reduce heat loss.

One end of the gas and flue gas suction pipe placed on the furnace is provided with a bell mouth to increase the suction volume, increase the gas flow rate, and improve the combustion efficiency.

Another object of the utility model is achieved through the following technical solutions: a gas purification device with a negative pressure type energy-saving and environment-friendly gas generator, including a furnace body with a refractory hearth inside, one end of which is arranged on the hearth, and the other end is placed on the hearth The gas and flue gas suction pipe outside the furnace is characterized in that a heat exchanger with a gas inlet and outlet and a water inlet and outlet and a heat exchange water jacket is installed between the gas and flue gas suction pipe and the exhaust fan , and a gas purifier with a gas inlet and outlet and a water shower inside.

The gas inlet pipe on the heat exchanger shell is connected with the gas flue gas suction pipe of the negative pressure energy-saving and environment-friendly gas generator, and the gas outlet pipe is connected with the gas inlet pipe at the lower part of the gas purifier shell, so as to come from negative pressure. The gas from the energy-saving and environment-friendly gas generator enters the heat exchanger through the gas flue gas suction pipe, so that the temperature of the gas can be lowered while the heat energy of the gas is used to heat the water.

The heat exchange water jacket is provided with vertical gas pipes at intervals, the lower end of the gas pipe communicates with the gas inlet pipe, and the upper end communicates with the gas outlet pipe, thereby forming a gas channel in the heat exchanger; the heat exchange water jacket is provided with There are water inlet pipes, water outlet pipes and steam discharge pipes, among which, the water inlet pipes are connected to the water supply pipes connected to the water tank, the water outlet pipes are connected to the user hot water pipes, and the steam discharge pipes are connected to the user steam pipes, thus forming a water channel in the heat exchanger , in order to use the thermal energy of gas flue gas to heat water and provide steam and boiled water to users, while reducing the temperature of gas flue gas.

The gas outlet pipe on the upper part of the gas purifier housing is connected to the exhaust fan, and the water sprinkler in the housing is composed of a water supply pipe and a spray head connected to the upper end of the water supply pipe, wherein the spray head is placed in the upper part of the housing, and the lower end of the water supply pipe It passes through the shell wall and connects with the water pump, so that after the gas enters the shell, the dust, coal tar, ash and other impurities in the gas enter the sewage pool at the lower part with the atomized water through the atomized water sprayed from the upper part, and the The purified gas is supplied to users through the gas outlet pipe.

Compared with the prior art, the utility model has the following advantages and effects: adopting the above-mentioned scheme, the traditional blow-in type combustion can be changed into draft type combustion, and the combustion temperature in the furnace can be increased through the setting of the refractory layer in the furnace. Ensure high combustion efficiency, reduce heat loss, protect the shell of the furnace body from heat, effectively prolong its service life, and through the setting of the heat exchanger, it can effectively use the heat energy of gas and flue gas to heat water and provide steam and boiling water to users , make comprehensive use of coal resources, realize energy saving and consumption reduction, and at the same time reduce the temperature of gas flue gas. Finally, through the gas purifier, provide users with high fuel value, high firepower, and clean gas without pollution. At the same time, it is convenient to recover coal tar and reduce its impact on the environment. pollution caused.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings, but the content of the utility model is not limited thereto.

As shown in Figure 1, the negative pressure type energy-saving and environment-friendly gas generator provided by the utility model includes a body of furnace 1, an air duct 13 located below the body of furnace 1 and an air inlet 12 and an air inlet 12 arranged on the furnace wall communicated with the air duct 13 14, wherein the air inlet 12 is connected with the blower 39, so that the blower 39 is used to blow air during ignition, and the blast is stopped after the combustion is normal, and the air is supplied by the air inlet 14. In addition, the blower can be turned on during the combustion process to forcibly supplement oxygen to support combustion , above the air duct 13 is the grate 15, above the grate 15 is the furnace 3, the furnace 3 is provided with a circle of refractory layer 2 with a thin top and a thick bottom, and a gas and flue gas suction pipe with a bell mouth 4 is provided in the middle of the furnace 3 5. The other end of the gas and flue gas suction pipe 5 passes through the furnace wall and is connected with the exhaust pipe 6 connected to the exhaust fan outside the furnace body, and the furnace 3 is formed into a negative pressure area through the exhaust fan to burn the fuel in it, and at the same time, the The coal gas and flue gas produced by combustion are extracted through the suction pipe 5 and the air pipe 6. The top of the furnace body 1 is a convex top furnace mouth 10, and the furnace mouth 10 is provided with a water seal 9, and the furnace cover 11 is placed in the water seal 9. To improve its sealing performance.

The inner wall of the shell 16 of the heat exchanger is provided with an insulating layer 17, and the gas inlet 26 on the shell 16 communicates with the gas flue gas suction pipe 5 of the negative pressure energy-saving and environment-friendly gas generator through the exhaust pipe 6, so as to The gas is introduced into the heat exchanger shell 16, and the heat exchange water jacket 18 is arranged in the heat exchanger shell 16, and a plurality of longitudinal gas pipes 19 are arranged at intervals in the water jacket 18, and the lower end of the gas pipe 19 is connected with the gas pipe. The air inlet 26 is connected, the upper end of the gas pipe 19 is connected with the gas outlet 21 to form a gas channel, and the water inlet pipe 25 on the heat exchange water jacket 18 is connected with the water supply tank 8 with a float valve through the pipe 7 to provide cooling. Water, the water outlet pipe 23 on the heat exchange water jacket 18 provides boiled water to the user through the valve and the water delivery pipe, the steam discharge pipe 20 on the heat exchange water jacket 18 provides steam to the user through the cold door and the steam delivery pipe, and the heat exchanger shell 16 The lower part is a dust and coal tar collection bin 24, which is discharged outwards through the outlet 27, and the gas outlet 21 on the top of the heat exchanger housing 16 is connected with the gas purifier through a pipeline 22.

The gas inlet 29 at the bottom of the gas purifier housing 28 communicates with the gas outlet 21 on the heat exchanger 16 through the gas pipe 22, so that the gas after cooling is sent into the purifier 28, and the gas purifier housing 28 The upper part of the interior is provided with a spray head 30 connected to the upper end of the water supply pipe 31, and the lower end of the water supply pipe 30 passes through the shell wall and is connected with the external circulating water pump 33 placed in the caisson 32 to provide spray water to the gas inside. Thereby purifying gas, water supply pipe 31 and spray nozzle 30 constitute sprinkler, the gas outlet 34 of gas purifier housing 28 tops is connected with blower fan 36 by gas pipeline 35, makes the gas after the purification through gas outlet 34, gas pipeline 35 provides to the user, the lower part of the gas purifier housing 28 is a sewage pool 37, which is regularly discharged through the sewage outlet 38, and the upper part of the housing 28 is provided with a water seal 9 and a cover 11, so that the water seal 9 and the cover 11 on the upper part of the purifier are in the negative Maintain good sealing performance under pressure.

Claims (7)

1. A negative-pressure energy-saving and environment-friendly coal gas generator, comprising a furnace body, an air duct below the furnace body, a furnace bar and a furnace above it, and a furnace cover above the furnace body. It is characterized in that the furnace is equipped with The refractory layer is provided with a gas and flue gas suction pipe on the furnace, and the other end of the gas and flue gas suction pipe passes through the furnace wall and is connected with the exhaust pipe connected to the exhaust fan outside the furnace. 2. The negative-pressure energy-saving and environment-friendly coal gasifier according to claim 1, characterized in that the refractory layer is arranged for a circle along the inner wall of the furnace, and is thinner at the top and thicker at the bottom. 3. The negative-pressure energy-saving and environment-friendly gas generator according to claim 1, characterized in that the end of the gas and flue gas suction pipe placed on the furnace is provided with a bell mouth. 4. A gas purification device with a negative pressure type energy-saving and environment-friendly gas generator, including a furnace body with a refractory hearth inside, one end of which is arranged on the furnace, and the other end is placed outside the furnace. A gas and flue gas suction pipe, It is characterized in that a heat exchanger with a gas inlet and outlet and a water inlet and outlet, a heat exchange water jacket is arranged inside it, and a gas inlet and outlet are arranged on it between the gas flue gas suction pipe and the exhaust fan. A gas purifier with a water sprinkler inside. 5. The gas purification device with a negative pressure energy-saving and environment-friendly gasifier according to claim 4, characterized in that the gas inlet pipe on the heat exchanger shell and the gas smoke of the negative-pressure energy-saving and environment-friendly gasifier The gas suction pipe is connected, and the gas outlet pipe is connected with the gas inlet pipe at the lower part of the gas purifier housing. 6. The gas purification device with a negative pressure energy-saving and environment-friendly gas generator according to claim 4, characterized in that the heat exchange water jacket is provided with vertical gas pipes at intervals, and the lower end of the gas pipe is connected to the gas inlet. The air pipe is connected, and the upper end is connected with the gas outlet pipe. The heat exchange water jacket is equipped with a water inlet pipe, a water outlet pipe and a steam discharge pipe. The pipe is connected to the user steam pipe. 7. The gas purification device with a negative pressure energy-saving and environment-friendly gas generator according to claim 4, characterized in that the gas outlet pipe on the upper part of the gas purifier shell is connected to the exhaust fan, and the water sprinkler in the shell It consists of a water supply pipe and a spray head connected to the upper end of the water supply pipe. The spray head is placed in the upper part of the casing, and the lower end of the water supply pipe passes through the casing wall and is connected with the water pump.

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