CN215809337U

CN215809337U - Gas low-nitrogen condensing boiler

Info

Publication number: CN215809337U
Application number: CN202121943582.9U
Authority: CN
Inventors: 于祥瑞; 李树志; 李广志
Original assignee: Tangshan Haorui New Energy Co ltd
Current assignee: Tangshan Haorui New Energy Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-02-11
Anticipated expiration: 2031-08-19

Abstract

The utility model relates to the technical field of boilers, in particular to a gas low-nitrogen condensing boiler. Adopt other full premix case and the gas air-inlet machine of being provided with of boiler body, be connected with the full premix agitator on the full premix case, boiler body top is provided with the condenser, a full premix case side is by last air-inlet pipe and gas air-inlet pipe of being provided with side by side under to, air-inlet pipe air inlet end is provided with airstrainer, be provided with airstrainer on the flue gas exhaust pipe that the condenser is connected, the condensation outlet pipe that the condenser is connected and the outside cover of condensation inlet tube are equipped with the structure of pipeline protection pipe. The gas and air are mixed more completely, impurities are reduced by filtering the air, the smoke is discharged after being filtered, and the function of protecting the water inlet and outlet pipelines of the condenser is realized. The problems that the air and the gas are not fully mixed, the gas is not completely combusted due to more impurities in the air, the environment is polluted by smoke, and water inlet and outlet pipelines of a condenser are easy to damage are solved.

Description

Gas low-nitrogen condensing boiler

Technical Field

The utility model relates to the technical field of boilers, in particular to a gas low-nitrogen condensing boiler.

Background

The gas and the air of low nitrogen condensation boiler inspiration mix the burning in proportion, and the proportion that gas burns completely is higher, and the efficiency of boiler just is higher, and low nitrogen condensation boiler utilizes efficient condensation waste heat recovery device to absorb the latent heat that sensible heat and steam condense and release in the high temperature flue gas of boiler exhaust simultaneously to reach the purpose that improves boiler thermal efficiency. The existing low-nitrogen condensing boiler has the defects that the mixing of fuel gas and air is not uniform, the air contains more impurities, the heat efficiency of boiler combustion is affected, the smoke pipeline lacks an effective filtering device to affect the air quality, and the water inlet and outlet pipeline of the condenser is exposed to the outside and is easy to corrode and damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems that: the technical insufficiency who exists to the aforesaid, a low nitrogen condensation boiler of gas is provided, adopt other full premix case and the fan of being provided with of boiler body, be connected with the full premix agitator on the full premix case, boiler body top is provided with the condenser, a full premix case side is by last air-supply line and gas air-supply line of being provided with side by side under to, air-supply line air inlet end is provided with airstrainer, be provided with airstrainer on the flue gas exhaust pipe that the condenser is connected, condensation outlet pipe and the outside cover of condensation inlet tube that the condenser is connected are equipped with the structure of pipeline protection pipe. The gas and air are mixed more completely, impurities are reduced by filtering the air, the smoke is discharged after being filtered, and the function of protecting the water inlet and outlet pipelines of the condenser is realized. The problems that the air and the gas are not fully mixed, the gas is not completely combusted due to more impurities in the air, the environment is polluted by smoke, and water inlet and outlet pipelines of a condenser are easy to damage are solved.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a gas low-nitrogen condensing boiler comprises a boiler body, a full premixing box, a fan, a condenser, an air filtering net, a flue gas filtering net, a full premixing stirrer and a pipeline protection pipe, wherein the full premixing box and the fan are arranged beside the left side wall of the boiler body in parallel, the full premixing stirrer is connected onto the full premixing box, the condenser is arranged at the top of the boiler body, the full premixing box comprises an air inlet pipe, a gas inlet pipe, an air outlet row, a gas outlet row and a box body, the full premixing stirrer is arranged on one side of the box body, away from the fan, and penetrates through the box body, the air inlet pipe and the gas outlet pipe are arranged on one side of the box body, away from the boiler body, from top to bottom in parallel, the air inlet end of the air inlet pipe is provided with the air filtering net, and the air outlet row is vertically and downwards arranged on the air inlet pipe, the utility model discloses a flue gas exhaust pipe, condenser, and condenser, and condenser, and condenser, and condenser, and condenser, and a pipe, respectively.

Further optimize this technical scheme, the full premix agitator includes agitator motor, (mixing) shaft, stirring vane, the agitator motor front end is provided with the (mixing) shaft, be provided with stirring vane on the (mixing) shaft, (mixing) shaft and stirring vane are located inside the case body.

Further optimize this technical scheme, airstrainer is the primary filter.

Further optimize this technical scheme, the flue gas filter screen is high efficiency filter.

Compared with the prior art, the utility model has the beneficial effects that: 1. by arranging the full premixing box and the full premixing stirrer, the gas and the air before entering the boiler are fully mixed, and the combustion heat efficiency is improved; 2. the air filter screen is arranged, so that impurities in air are reduced, and the mixed gas is combusted more completely; 3. the smoke filter screen is arranged to filter the discharged smoke, so that the environment pollution is avoided; 4. the water inlet and outlet pipelines of the condenser are protected by arranging the pipeline protection pipe.

Drawings

Fig. 1 is a schematic structural diagram of a gas-fired low-nitrogen condensing boiler.

FIG. 2 is a schematic diagram of a fully premixed tank of a gas fired low nitrogen condensing boiler.

Fig. 3 is a rear view of a schematic construction of a gas-fired low-nitrogen condensing boiler.

Fig. 4 is a schematic structural view of an air inlet pipe and a gas inlet pipe of a gas low-nitrogen condensing boiler.

FIG. 5 is a schematic diagram of a fully premixed agitator of a gas fired low nitrogen condensing boiler.

In the figure, 1, a boiler body; 2. a full premix tank; 3. a fan; 4. a condenser; 5. an air filter screen; 6. a smoke filter screen; 7. a full premix mixer; 8. a pipeline protection pipe; 201. an air inlet pipe; 202. a gas inlet pipe; 203. Air outlet row; 204. discharging gas out; 205. A tank body; 401. A flue gas outlet pipe; 402. a flue gas exhaust pipe; 403. a condensation water outlet pipe; 404. a condensation water inlet pipe; 701. a stirring motor; 702. a stirring shaft; 703. a stirring blade.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Referring to fig. 1-5, the boiler comprises a boiler body 1, a full premix tank 2, a fan 3, a condenser 4, an air filter 5, a flue gas filter 6, a full premix agitator 7, and a pipeline protection tube 8, wherein the full premix tank 2 and the fan 3 are arranged beside the left side wall of the boiler body 1 in parallel, the full premix tank 2 is connected with the full premix agitator 7, the condenser 4 is arranged on the top of the boiler body 1, the full premix tank 2 comprises an air inlet pipe 201, a gas inlet pipe 202, an air outlet row 203, a gas outlet row 204, and a tank body 205, the full premix agitator 7 is arranged on one side of the tank body 205 away from the fan 3, the full premix agitator 7 penetrates the tank body 205, the air inlet pipe 201 and the gas inlet pipe 202 are arranged on one side of the tank body 205, the air inlet end of the air inlet pipe 201 is provided with the air filter 5, an air outlet row 203 is vertically and downwardly arranged on the air inlet pipe 201, and a gas outlet row 204 is vertically and upwardly arranged on the gas inlet pipe 202. 4 left and right sides of condenser are provided with flue gas play tuber pipe 401 and flue gas exhaust pipe 402 respectively, the flue gas goes out tuber pipe 401 and is connected with boiler body 1, be provided with smoke filter screen 6 on the flue gas exhaust pipe 402, the both ends of condenser 4 are provided with condensation outlet pipe 403 and condensation inlet tube 404 respectively, condensation outlet pipe 403 and condensation inlet tube 404 extend to ground along boiler body 1 back, condensation outlet pipe 403 and the outside cover of condensation inlet tube 404 are equipped with pipeline protection pipe 8. The pipeline protection pipe 8 can be a rubber pipe, one side of which contacts the boiler body 1, so that the condensation water outlet pipe 403 and the condensation water inlet pipe 404 are shaken to be smaller under the action of accidental impact, the joint is not easy to damage, and the impact force can be reduced. The pipe protection pipe 8 may be a hard pipe made of metal and fixed to the boiler body 1, and prevents the condensation water outlet pipe 403 and the condensation water inlet pipe 404 from being impacted and shaken.

Preferably, the fully-premixed stirrer 7 comprises a stirring motor 701, a stirring shaft 702 and stirring blades 703, the stirring shaft 702 is arranged at the front end of the stirring motor 701, the stirring blades 703 are arranged on the stirring shaft 702, and the stirring shaft 702 and the stirring blades 703 are located inside the tank body 205.

Preferably, the airstrainer 5 is a primary filter.

Preferably, the smoke filter screen 6 is a high-efficiency filter.

In use, and as shown in fig. 1-5, air is filtered by the air filter 5 and enters the box body 205 through the air inlet pipe 201, through the air outlet row 203, the gas enters the box body 205 through the gas inlet pipe 202, and is sprayed out through the gas outlet row 204, because the density of the fuel gas is less than that of the air, the gas with lower density rises upwards, the gas with higher density falls downwards, the air inlet duct 201 is disposed above the gas inlet duct 202, so that the gas and the air are primarily mixed, stirring vane 703 stirs gas and air in case body 205 simultaneously, and gas and air mixing are more even, through the stirring of full premix agitator 7, enter into fan 3 after gas and air mixing are abundant, enter into boiler body 1 by fan 3 again in, the gas combustion that makes to get into boiler body 1 above the structure is more abundant, improves boiler thermal efficiency. Flue gas after the burning enters into condenser 4 through flue gas play tuber pipe 401, condenser 4 recycles the high temperature flue gas, improve the whole thermal efficiency of boiler, flue gas after the condensation is discharged through flue gas exhaust pipe 402, flue gas filter screen 6 that sets up on the flue gas exhaust pipe 402 can filter the flue gas, filter the harmful substance in the flue gas, avoid the flue gas pollution environment, condenser 4's condensation outlet pipe 403 and condensation inlet tube 404 set up in boiler body 1's back and extend to ground, consequently, receive the damage easily, condensation outlet pipe 403 and condensation inlet tube 404's outside is located to 8 covers of pipeline protection pipe, protect condensation outlet pipe 403 and condensation inlet tube 404, prolonged service life.

The control mode of the utility model is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of technicians in the field, the utility model belongs to the common knowledge in the field, and the utility model is mainly used for protecting the mechanical arrangement, so the control mode and the circuit connection are not explained in detail in the utility model.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides a low nitrogen condensation boiler of gas which characterized in that: including boiler body (1), premixing case (2), fan (3), condenser (4), air filter (5), flue gas filter (6), premixing agitator (7), pipeline protection pipe (8) entirely, be provided with premixing case (2) and fan (3) entirely by side in the left side wall of boiler body (1), be connected with premixing agitator (7) entirely on premixing case (2) entirely, boiler body (1) top is provided with condenser (4), premixing case (2) include air inlet pipe (201), gas inlet pipe (202), air-out row (203), air-out row (204), case body (205) entirely, one side that fan (3) were kept away from in case body (205) is provided with premixing agitator (7) entirely, premixing agitator (7) entirely runs through inside case body (205), one side that boiler body (1) was kept away from in case body (205) is provided with air inlet pipe (201) by side down from last air inlet pipe (201) in parallel ) And a gas inlet pipe (202), an air filter screen (5) is arranged at the air inlet end of the air inlet pipe (201), an air outlet row (203) is vertically and downwards arranged on the air inlet pipe (201), a gas outlet row (204) is vertically and upwards arranged on the gas inlet pipe (202), the left side and the right side of the condenser (4) are respectively provided with a flue gas outlet pipe (401) and a flue gas exhaust pipe (402), the flue gas outlet pipe (401) is connected with the boiler body (1), a flue gas filter screen (6) is arranged on the flue gas exhaust pipe (402), a condensation water outlet pipe (403) and a condensation water inlet pipe (404) are respectively arranged at two ends of the back of the condenser (4), the condensation water outlet pipe (403) and the condensation water inlet pipe (404) extend to the ground along the boiler body (1), and the pipeline protection pipes (8) are sleeved outside the condensation water outlet pipe (403) and the condensation water inlet pipe (404).

2. The gas fired low nitrogen condensing boiler according to claim 1, characterized by: the full-premixing stirrer (7) comprises a stirring motor (701), a stirring shaft (702) and stirring blades (703), wherein the stirring shaft (702) is arranged at the front end of the stirring motor (701), the stirring blades (703) are arranged on the stirring shaft (702), and the stirring shaft (702) and the stirring blades (703) are positioned inside the box body (205).

3. The gas fired low nitrogen condensing boiler according to claim 1, characterized by: the air filter screen (5) is a primary filter.

4. The gas fired low nitrogen condensing boiler according to claim 1, characterized by: the smoke filter screen (6) is a high-efficiency filter.