CN212456804U

CN212456804U - Boiler heat pipe type economizer

Info

Publication number: CN212456804U
Application number: CN202020975059.3U
Authority: CN
Inventors: 梅华斌; 王海波; 程颖
Original assignee: Wuxi Institute of Technology
Current assignee: Wuxi Institute of Technology
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2021-02-02
Anticipated expiration: 2030-06-01

Abstract

A boiler heat pipe type economizer solves the problems that impurity dust and the like exist in boiler flue gas passing through a flue gas channel of the existing economizer when the existing economizer is used, the flue gas channel can be blocked, the filter screen is easy to block after part of the economizer filter screen provided with the filter screen is used for a period of time, and the air permeability of the filter screen is influenced, and comprises an economizer body, one side of the economizer body is provided with a water inlet pipe, the other side of the economizer body is provided with a water outlet pipe, one end of the economizer body is provided with an air inlet, the other end of the economizer body is provided with an air outlet, one end of the water inlet pipe is connected with a shunt pipe, one side of the shunt pipe is uniformly provided with a plurality of heat exchange pipes, one end of each heat exchange pipe is connected with a confluence pipe, and two sides of the economizer body close to one end are both provided with side shell bodies, the, meanwhile, the filter screen can be cleaned, so that the air permeability of the filter screen is ensured, and the blockage of a flue gas channel is avoided.

Description

Boiler heat pipe type economizer

Technical Field

The utility model relates to an economizer specifically is a boiler heat pipe formula economizer.

Background

The Economizer (Economizer) is a device which is arranged at the lower part of a flue at the tail part of a boiler and is used for recovering the waste heat of exhausted smoke, water fed by the boiler is heated into a heating surface of saturated water under the pressure of a steam drum, and the Economizer is called as the Economizer because the Economizer absorbs the heat of high-temperature smoke, reduces the exhaust temperature of the smoke, saves energy and improves the efficiency.

When the economizer is used, impurity dust and the like exist in boiler flue gas passing through a flue gas channel of the economizer and can block the flue gas channel, and after a part of economizer filter screens provided with the filter screens are used for a period of time, the filter screens are easy to block, so that the air permeability of the filter screens is influenced.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a boiler heat pipe formula economizer, the effectual present economizer of having solved exists impurity dust etc. in the boiler flue gas of its flue gas passageway, can block up the flue gas passageway, and the economizer filter screen of filter screen is installed to the part is after using a period, and the filter screen easily blocks up, influences the problem of filter screen air permeability.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model comprises an economizer body, a water inlet pipe, a water discharge pipe, an air inlet, an air outlet, a shunt pipe, a heat exchange fin, a confluence pipe, a side shell, a fixing bolt, a sealing cover, a first bolt hole, a second bolt hole, a sealing groove, sealing rubber, a filter screen, a slide block and a chute, one side of economizer body is provided with the inlet tube, the opposite side of economizer body is provided with the drain pipe, the one end of economizer body is provided with the air inlet, the other end of economizer body is provided with the gas vent, the one end of inlet tube is connected with the shunt tubes, one side of shunt tubes evenly is provided with a plurality of heat exchange tube, the one end of heat exchange tube is connected with the confluence pipe, the both sides that the economizer body is close to one end all are provided with the side casing, the sealed lid is installed through fixing bolt in the top of side casing, the internally mounted that the economizer body is close to one end has the filter screen, the both ends of filter.

Preferably, one side of the confluence pipe is connected with a drain pipe.

Preferably, the sealing cover is provided with a first bolt hole corresponding to the position of the fixing bolt, and the sealing cover is provided with a second bolt hole corresponding to the position of the fixing bolt.

Preferably, the top end of the side shell is provided with a sealing groove, and sealing rubber is filled in the sealing groove.

Preferably, the side shell is provided with a sliding groove at a position corresponding to the sliding block.

Preferably, the surface of the heat exchange tube is uniformly provided with a plurality of heat exchange fins.

Has the advantages that: when the utility model is used, the boiler flue gas is connected with the air inlet, the flue gas can enter the economizer body through the air inlet, the flue gas can be filtered by the filter screen arranged in the economizer body, the filter screen can filter dust impurities in the boiler flue gas, the filtered flue gas can pass through the heat exchange tube and the heat exchange fins, the heat exchange tube and the heat exchange fins absorb heat in the flue gas and transmit the heat to liquid in the heat exchange tube, thereby absorbing and using the heat in the boiler flue gas, the utility model is energy-saving and environment-friendly, after being used for a period of time, when more dust impurities are accumulated on the filter screen, the fixing bolt is unscrewed, the sealing cover is taken down, the sliding blocks at the two ends of the filter screen are pulled out from the chute, and then the filter screen is taken out, the interface cleans or changes the filter screen at the moment, the air permeability of the filter screen is ensured, the blockage of a flue gas channel is avoided, will seal the lid again and cover, screw first bolt hole, can accomplish the washing of filter screen, the utility model discloses novel structure thinks about ingeniously, can filter the flue gas through the boiler, can wash the filter screen simultaneously, guarantees the air permeability of filter screen, avoids the flue gas passageway to block up.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a schematic three-dimensional structure diagram of the sealing cover of the present invention;

FIG. 4 is a schematic diagram of the structure of A in FIG. 2 according to the present invention;

reference numbers in the figures: 1. an economizer body; 2. a water inlet pipe; 3. a drain pipe; 4. an air inlet; 5. an exhaust port; 6. a shunt tube; 7. a heat exchange pipe; 8. heat exchange fins; 9. a confluence pipe; 10. a side housing; 11. fixing the bolt; 12. a sealing cover; 13. a first bolt hole; 14. a second bolt hole; 15. a sealing groove; 16. sealing rubber; 17. filtering with a screen; 18. a slider; 19. a chute.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying fig. 1-4.

In the first embodiment, as shown in fig. 1-4, the utility model provides a boiler heat pipe type economizer, which comprises an economizer body 1, a water inlet pipe 2, a water outlet pipe 3, an air inlet 4, an air outlet 5, a shunt pipe 6, a heat exchange pipe 7, a heat exchange fin 8, a flow combining pipe 9, a side shell 10, a fixing bolt 11, a sealing cover 12, a first bolt hole 13, a second bolt hole 14, a sealing groove 15, sealing rubber 16, a filter screen 17, a slider 18 and a chute 19, wherein one side of the economizer body 1 is provided with the water inlet pipe 2, the other side of the economizer body 1 is provided with the water outlet pipe 3, one end of the economizer body 1 is provided with the air inlet 4, the other end of the economizer body 1 is provided with the air outlet 5, one end of the water inlet pipe 2 is connected with the shunt pipe 6, one side of the shunt pipe 6 is uniformly provided with a plurality of heat exchange pipes 7, one end of the heat exchange pipes, a sealing cover 12 is installed at the top end of the side shell 10 through a fixing bolt 11, a filter screen 17 is installed inside the coal economizer body 1 close to one end, and sliding blocks 18 are arranged at two ends of the filter screen 17.

One side of the confluence pipe 9 is connected with the drain pipe 3, which is convenient for water transmission.

The sealing cover 12 is provided with a first bolt hole 13 corresponding to the position of the fixing bolt 11, and the sealing cover 12 is provided with a second bolt hole 14 corresponding to the position of the fixing bolt 11, so that the sealing cover is convenient to be installed and fixed in a matched manner.

The top end of the side shell 10 is provided with a sealing groove 15, and sealing rubber 16 is filled in the sealing groove 15, so that the connecting part has good sealing performance.

The side shell 10 is provided with a sliding groove 19 at a position corresponding to the sliding block 18, so that the sliding block 18 and the sliding groove 19 can be conveniently matched for use.

The surface of the heat exchange tube 7 is uniformly provided with a plurality of heat exchange fins 8, so that the heat exchange area is increased.

The working principle is as follows: when the utility model is used, the boiler flue gas is connected with the air inlet 4, the flue gas can enter the economizer body 1 through the air inlet 4, the flue gas can be filtered by the filter screen 17 arranged inside the economizer body 1, the filter screen 17 can filter dust impurities in the boiler flue gas, the filtered flue gas can pass through the heat exchange tube 7 and the heat exchange fin 8, the heat exchange tube 7 and the heat exchange fin 8 absorb heat in the flue gas and transmit the heat to liquid in the heat exchange tube 7, thereby absorbing and using the heat in the boiler flue gas, energy conservation and environmental protection are realized, after a period of use, when more dust impurities are accumulated on the filter screen 17, the fixing bolt 11 is unscrewed, the sealing cover 12 is taken down, the sliding blocks 18 at two ends of the filter screen 17 are pulled out from the sliding grooves 19, the filter screen 17 is taken out, the filter screen 17 is cleaned or replaced by the interface at the moment, the air permeability of the filter screen 17 is ensured, the blockage of a flue gas channel, the sliding blocks 18 at the two ends of the filter screen 17 are inserted into the sliding grooves 19, the sealing cover 12 is covered, and the first bolt holes 13 are screwed, so that the filter screen 17 can be cleaned.

Has the advantages that: the utility model discloses novel structure thinks about ingeniously, can filter the flue gas through the boiler, can wash the filter screen simultaneously, guarantees the air permeability of filter screen, avoids the flue gas passageway to block up.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a boiler heat pipe formula economizer, includes economizer body (1), inlet tube (2), drain pipe (3), air inlet (4), gas vent (5), shunt tubes (6), heat exchange tube (7), heat exchange fin (8), confluence pipe (9), side casing (10), fixing bolt (11), sealed lid (12), first bolt hole (13), second bolt hole (14), seal groove (15), sealing rubber (16), filter screen (17), slider (18) and spout (19), its characterized in that: the coal economizer is characterized in that a water inlet pipe (2) is arranged on one side of the coal economizer body (1), a water drain pipe (3) is arranged on the other side of the coal economizer body (1), an air inlet (4) is arranged at one end of the coal economizer body (1), an air outlet (5) is arranged at the other end of the coal economizer body (1), a shunt pipe (6) is connected to one end of the water inlet pipe (2), a plurality of heat exchange pipes (7) are uniformly arranged on one side of the shunt pipe (6), a confluence pipe (9) is connected to one end of each heat exchange pipe (7), side shells (10) are arranged on two sides, close to one end, of the coal economizer body (1), sealing covers (12) are mounted on the top ends of the side shells (10) through fixing bolts (11), a filter screen (17) is mounted inside the coal economizer body (.

2. The boiler heat pipe type economizer according to claim 1, wherein one side of the confluence pipe (9) is connected with the drain pipe (3).

3. The boiler heat pipe type economizer according to claim 1, wherein the sealing cover (12) is provided with a first bolt hole (13) corresponding to the fixing bolt (11), and the sealing cover (12) is provided with a second bolt hole (14) corresponding to the fixing bolt (11).

4. The boiler heat pipe type economizer according to claim 1, wherein the top end of the side casing (10) is provided with a sealing groove (15), and the sealing groove (15) is filled with sealing rubber (16).

5. The boiler heat pipe type economizer of claim 1, wherein the side housing (10) is provided with a sliding groove (19) at a position corresponding to the sliding block (18).

6. The boiler heat pipe type economizer according to claim 1, wherein the surface of the heat exchange pipe (7) is uniformly provided with a plurality of heat exchange fins (8).