CN214486255U

CN214486255U - Boiler flue gas waste heat recovery utilizes economizer system

Info

Publication number: CN214486255U
Application number: CN202120349736.5U
Authority: CN
Inventors: 刘乃明; 郝广会
Original assignee: Yili Jieneng Technology Guangrao Co ltd
Current assignee: Yili Jieneng Technology Guangrao Co ltd
Priority date: 2021-02-06
Filing date: 2021-02-06
Publication date: 2021-10-26
Anticipated expiration: 2031-02-06

Abstract

The utility model relates to a boiler flue gas waste heat utilization technical field specifically is a boiler flue gas waste heat recovery utilizes economizer system. The power distribution box comprises a box body, the outlet duct is installed to box top position, the intake pipe is installed to the bottom half position, the intake pipe is located box inner chamber one end and installs the ash blocking cover, the box inner chamber is located ash blocking cover upper portion position and installs filter plate, filter plate upper portion position installs the water tank, water tank internally mounted has the heat exchange tube, the heat exchange tube runs through water tank intercommunication box inner chamber position from top to bottom, the inlet tube is installed to water tank left side bottom position, the overflow pipe is installed to water tank right side upper portion position, inlet tube and overflow pipe all run through the box and extend to the box outside, can filter the dust granule in the flue gas, avoid the heat exchange tube jam, compare traditional flue gas waste heat recovery and utilization equipment simultaneously, waste heat recovery utilization rate is higher.

Description

Boiler flue gas waste heat recovery utilizes economizer system

Technical Field

The utility model relates to a boiler flue gas waste heat utilization technical field specifically is a boiler flue gas waste heat recovery utilizes economizer system.

Background

The waste heat in the flue gas discharged by the industrial kiln can reach hundreds of degrees, the flue gas is directly discharged into the air, a large amount of energy is wasted, and even if the industrial kiln provided with the air preheater is used, the temperature of the flue gas also reaches about 200 degrees, so how to utilize the waste heat of the flue gas is a popular research topic. In recent years, a plurality of methods for utilizing the waste heat of the flue gas have different advantages and disadvantages, and the most common natural gas industrial kilns are exemplified by the following methods: 1. the method is only suitable for the production industries of refractory materials, ceramics and the like. 2. The method is only suitable for winter in northern areas. 3. The waste heat recovery device, such as a recovery vehicle, is used and then transferred to other occasions needing heating to be released, and the method has high equipment cost and complex transfer process.

The existing boiler flue gas waste heat utilization cannot filter dust particles in flue gas, so that a heat exchange tube is blocked, the heat exchange efficiency is reduced, and the waste heat recovery utilization rate is lower.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to solve the above problem of the prior art, the utility model provides a boiler flue gas waste heat recovery utilizes economizer system can filter the dust granule in the flue gas, avoids the heat exchange tube to block up, compares traditional flue gas waste heat recovery equipment simultaneously, and waste heat recovery utilization rate is higher.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a main technical scheme: the water tank comprises a tank body, the outlet duct is installed to box top position, the intake pipe is installed to bottom half position, the intake pipe is located box inner chamber one end and installs the ash blocking cover, box inner chamber is located ash blocking cover upper portion position and installs filter plate, filter plate upper portion position installs the water tank, water tank internally mounted has the heat exchange tube, the heat exchange tube runs through water tank intercommunication box inner chamber position from top to bottom, water tank left side bottom position installs the inlet tube, water tank right side upper portion position installs the overflow pipe, inlet tube and overflow pipe all run through the box and extend to the box outside.

Preferably, the bottom of the box body is in a conical structure.

Preferably, inlet branch pipe is installed to inlet tube bottom position, the inlet branch pipe other end just is located filter plate lower part position intercommunication with the box left side, install the ooff valve on the inlet branch pipe.

Preferably, a light spring is installed at the bottom of the filter screen plate, and a small ball is installed at the bottom of the light spring.

Preferably, a drain pipe is arranged at the bottom of the right side of the box body, and a drain valve is arranged on the drain pipe.

(III) advantageous effects

The utility model provides a boiler flue gas waste heat recovery utilizes economizer system. The method has the following beneficial effects:

(1) the flue gas filters through filtering the otter board, and the dust granule that is rich in the flue gas can be filtered, and the flue gas passes the heat exchange tube and can heat the inside water of water tank, and the hot water that the water tank is inside rises through the heating flows through the overflow pipe, and cold water fills into through the inlet tube of left side lower part position and supplys to the water tank in, and the cold water of injection into can persist in the water tank bottom, and hot water can come-up and flow through the overflow pipe.

(2) When needing to clear up the dust granule of bottom half position, closing equipment, then open the blowoff valve on the blow off pipe, can open the ooff valve on the branch pipe of intaking simultaneously, wash bottom the box inner chamber.

(3) When the flue gas blows through the intake pipe, can blow the bobble, the vibrations of bobble can drive the vibrations of filter plate wire side, can shake off the dust particle of adhesion on the wire side.

Drawings

Fig. 1 is a front sectional view of the present invention.

In the figure: 1. a box body; 2. an air outlet pipe; 3. an air inlet pipe; 4. a dust cover; 5. a filter screen plate; 6. a water tank; 7. a heat exchange pipe; 8. a water inlet pipe; 9. an overflow pipe; 10. a water inlet branch pipe; 11. an on-off valve; 12. a light spring; 13. a pellet; 14. a blow-off pipe; 15. a blowoff valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the boiler flue gas waste heat recovery utilizes economizer system of this embodiment, including box 1, outlet duct 2 is installed to 1 top position of box, intake pipe 3 is installed to 1 bottom position of box, intake pipe 3 is located 1 inner chamber one end of box and installs ash blocking cover 4, 1 inner chamber of box is located 4 upper portions positions of ash blocking cover and installs filter plate 5, filter plate 5 upper portions position is installed and is had

water tank

6, 6 internally mounted of water tank has heat exchange tube 7, heat exchange tube 7 runs through water tank 6 intercommunication box 1 inner chamber upper and lower position, 6 left sides bottom positions of water tank

install inlet tube

8, 6 right sides upper portion positions of water tank install overflow pipe 9, inlet tube 8 and overflow pipe 9 all run through box 1 and extend to the box 1 outside. The flue gas filters through filtering otter board 5, and the dust granule that is rich in the flue gas can be filtered, and the flue gas passes heat exchange tube 7 can heat the water of 6 insides of water tank, and the hot water of 6 insides of water tank through the heating rises through overflow pipe 9 outflow, and cold water fills into through the inlet tube 8 of left side lower part position and supplys to water tank 6 in, and the cold water of injection into can persist in 6 bottoms of water tank, and hot water can come-up and flow through overflow pipe 9.

Furthermore, the bottom of the box body 1 is in a conical structure.

Furthermore, a water inlet branch pipe 10 is installed at the bottom of the water inlet pipe 8, the other end of the water inlet branch pipe 10 is communicated with the left side of the box body 1 and is located at the lower part of the filter screen plate 5, and a switch valve 11 is installed on the water inlet branch pipe 10.

Further, a light spring 12 is arranged at the bottom of the filter screen plate 5, and a small ball 13 is arranged at the bottom of the light spring 12. When the flue gas blows through intake pipe 3, can blow pellet 13, the vibrations of pellet 13 can drive the vibrations of 5 wire side of filter plate, can shake off the dust particle of adhesion on the wire side.

Furthermore, a sewage discharge pipe 14 is arranged at the bottom of the right side of the box body 1, and a sewage discharge valve 15 is arranged on the sewage discharge pipe 14. When needing to clear up the dust particle of box 1 bottom position, closing equipment, then open the blowoff valve 15 on the blow off pipe 14, can open the ooff valve 11 on the branch pipe 10 of intaking simultaneously, wash 1 inner chamber bottom of box.

The working principle is as follows: the flue gas filters through filtering otter board 5, and the dust granule that is rich in the flue gas can be filtered, and the flue gas passes heat exchange tube 7 can heat the water of 6 insides of water tank, and the hot water of 6 insides of water tank through the heating rises through overflow pipe 9 outflow, and cold water fills into through the inlet tube 8 of left side lower part position and supplys to water tank 6 in, and the cold water of injection into can persist in 6 bottoms of water tank, and hot water can come-up and flow through overflow pipe 9. When the flue gas blows through intake pipe 3, can blow pellet 13, the vibrations of pellet 13 can drive the vibrations of 5 wire side of filter plate, can shake off the dust particle of adhesion on the wire side. When needing to clear up the dust particle of box 1 bottom position, closing equipment, then open the blowoff valve 15 on the blow off pipe 14, can open the ooff valve 11 on the branch pipe 10 of intaking simultaneously, wash 1 inner chamber bottom of box.

Claims

1. The utility model provides a boiler flue gas waste heat recovery utilizes economizer system which characterized in that: comprises a box body (1), an air outlet pipe (2) is arranged at the top of the box body (1), an air inlet pipe (3) is arranged at the bottom of the box body (1), a dust blocking cover (4) is arranged at one end of the air inlet pipe (3) positioned in the inner cavity of the box body (1), a filter screen plate (5) is arranged in the inner cavity of the box body (1) and positioned at the upper part of the dust blocking cover (4), a water tank (6) is arranged at the upper part of the filter screen plate (5), a heat exchange pipe (7) is arranged in the water tank (6), the heat exchange tube (7) penetrates through the water tank (6) and is communicated with the upper position and the lower position of the inner cavity of the tank body (1), a water inlet pipe (8) is arranged at the bottom of the left side of the water tank (6), an overflow pipe (9) is arranged at the upper part of the right side of the water tank (6), the water inlet pipe (8) and the overflow pipe (9) penetrate through the box body (1) and extend to the outside of the box body (1).

2. The boiler flue gas waste heat recovery and utilization energy-saving system of claim 1, characterized in that: the bottom of the box body (1) is of a conical structure.

3. The boiler flue gas waste heat recovery and utilization energy-saving system of claim 2, characterized in that: inlet branch pipe (10) are installed to inlet tube (8) bottom position, inlet branch pipe (10) other end and box (1) left side just are located filter screen board (5) lower part position intercommunication, install ooff valve (11) on inlet branch pipe (10).

4. The boiler flue gas waste heat recovery and utilization energy-saving system of claim 1, characterized in that: the bottom of the filter screen plate (5) is provided with a light spring (12), and the bottom of the light spring (12) is provided with a small ball (13).

5. The boiler flue gas waste heat recovery and utilization energy-saving system of claim 3, characterized in that: a sewage discharge pipe (14) is installed at the bottom of the right side of the box body (1), and a sewage discharge valve (15) is installed on the sewage discharge pipe (14).