CN213453712U

CN213453712U - Air preheater

Info

Publication number: CN213453712U
Application number: CN202022184705.7U
Authority: CN
Inventors: 朱家元
Original assignee: Wuhan Zhonghaixin Energy Technology Development Co ltd
Current assignee: Wuhan Zhonghaixin Energy Technology Development Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-06-15
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses an air heater relates to air heater equipment structure technical field, causes wearing and tearing to air heater's heat exchange tube easily when the flue gas gets into air heater for solving current air heater to influence air heater's life's problem. The flue gas inlet box is installed to one side of preheater box, the flue gas discharge box is installed to the opposite side of preheater box, the fixed mounting case is installed to the top of preheater box, the upper end of fixed mounting case is provided with the cold air inlet port, one side of cold air inlet port is provided with the hot-air discharge port, the internally mounted of preheater box has sealed fixed plate, heat transfer pipeline is installed to one side of sealed fixed plate, the baffling board is installed to inner wall one side of heat transfer chamber, the abrasionproof sleeve pipe is installed to the one end of heat transfer pipeline, the sheathed tube one end of abrasionproof is provided with the mounting groove, the ash blocking net is installed to one side of mounting groove.

Description

Air preheater

Technical Field

The utility model relates to an air heater equipment structure technical field specifically is an air heater.

Background

The air preheater is a heating surface for preheating air before entering the boiler to a certain temperature by smoke in a flue at the tail part of the boiler through internal radiating fins, and is equipment for improving the heat exchange performance of the boiler and reducing energy consumption.

However, the heat exchange tubes of the existing air preheater are easily abraded when flue gas enters the air preheater, so that the service life of the air preheater is influenced, and therefore the air preheater is urgently needed in the market to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air heater to solve the current air heater who proposes in the above-mentioned background art and cause wearing and tearing to air heater's heat exchange tube easily when the flue gas gets into air heater, thereby influence air heater's life's problem.

In order to achieve the above object, the utility model provides a following technical scheme: an air preheater comprises a preheater box body, wherein one end of the preheater box body is provided with a first mounting seat, one side of the first mounting seat is provided with a flue gas inlet box, the other side of the preheater box body is provided with a second mounting seat, one side of the second mounting seat is provided with a flue gas outlet box, a supporting base is arranged below the preheater box body, a fixed mounting box is arranged above the preheater box body, the upper end of the fixed mounting box is provided with a cold air inlet, one side of the cold air inlet is provided with a hot air outlet, a heat exchange chamber is arranged in the preheater box body, sealing fixing plates are arranged on two sides in the heat exchange chamber, a heat exchange pipeline is arranged on one side of each sealing fixing plate, a fixing groove is arranged in one end of the heat exchange pipeline, and a fixing thread is arranged on the inner wall of the, the heat exchanger is characterized in that a baffle plate is installed on one side of the inner wall of the heat exchange chamber, an abrasion-proof sleeve is installed at one end of the heat exchange pipeline, an installation groove is formed in one end of the abrasion-proof sleeve, and an ash blocking net is installed on one side of the installation groove.

Preferably, one end of the flue gas inlet box is provided with a first fixing seat, the first fixing seat is fixedly connected with the first mounting seat through a first fixing screw, one end of the flue gas outlet box is provided with a second fixing seat, the second fixing seat is fixedly connected with the second mounting seat through a second fixing screw, and a flue gas outlet is formed in one side of the flue gas outlet box.

Preferably, the two sides of the fixed installation box are provided with four lifting hooks, the four lifting hooks are symmetrical about the vertical center line of the fixed installation box, and the lifting hooks are connected with the fixed installation box in a welded mode.

Preferably, the heat exchange pipes are provided with a plurality of heat exchange pipes which are uniformly distributed on one side of the sealing fixing plate.

Preferably, one end of the wear-resistant sleeve is provided with an installation end, and the periphery of the outer wall of the installation end is provided with connecting threads corresponding to the fixing threads.

Preferably, both ends of the ash blocking net are provided with fixing feet, and the fixing feet are fixedly connected with the mounting grooves through fixing screws.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this kind of air heater is through installing the abrasionproof sleeve pipe, through threaded connection between abrasionproof sleeve pipe and the heat transfer pipeline, can be very convenient dismantle the change to the abrasionproof sleeve pipe through this kind of setting, the ash blocking net is installed to abrasionproof sheathed tube one side, the ash blocking net through the installation can filter the dust in the flue gas, avoid the dust to cause wearing and tearing to the heat transfer pipeline to make the life of heat transfer pipeline reduce, make this kind of air heater's life shorten.

2. This kind of air heater internally mounted has the baffling board, can make cold air can be more abundant contact with the heat transfer pipeline through the baffling board of installation, can effectual improvement thermal utilization ratio like this, makes preheating effect of air better.

Drawings

FIG. 1 is an overall front view of the present invention;

fig. 2 is an overall sectional view of the present invention;

fig. 3 is a partial sectional view of the installation of the anti-wear sleeve of the present invention.

In the figure: 1. a preheater box body; 101. a heat exchange chamber; 2. a first mounting seat; 3. the flue gas enters the box; 301. a first fixed seat; 4. a first fixing screw; 5. a second mounting seat; 6. a flue gas discharge box; 601. a second fixed seat; 7. a second fixing screw; 8. a flue gas outlet; 9. a support base; 10. fixing the installation box; 11. a cool air inlet port; 12. a hot air discharge port; 13. sealing the fixed plate; 14. a heat exchange conduit; 1401. fixing grooves; 1402. fixing threads; 15. a baffle plate; 16. an anti-wear sleeve; 1601. an installation end; 1602. connecting threads; 1603. mounting grooves; 17. an ash blocking net; 1701. a fixing leg; 18. fixing screws; 19. the hook is lifted.

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.

Referring to fig. 1-3, the present invention provides an embodiment: an air preheater comprises a preheater box body 1, wherein one end of the preheater box body 1 is provided with a first mounting seat 2, one side of the first mounting seat 2 is provided with a flue gas inlet box 3, the other side of the preheater box body 1 is provided with a second mounting seat 5, one side of the second mounting seat 5 is provided with a flue gas outlet box 6, a support base 9 is arranged below the preheater box body 1, a fixed mounting box 10 is arranged above the preheater box body 1, the upper end of the fixed mounting box 10 is provided with a cold air inlet 11, one side of the cold air inlet 11 is provided with a hot air outlet 12, a heat exchange chamber 101 is arranged inside the preheater box body 1, two sides inside the heat exchange chamber 101 are respectively provided with a sealing and fixing plate 13, one side of the sealing and fixing plate 13 is provided with a heat exchange pipeline 14, the inside of one end of the heat exchange pipeline 14 is, a baffle plate 15 is installed on one side of the inner wall of the heat exchange chamber 101, an anti-abrasion sleeve 16 is installed on one end of the heat exchange pipeline 14, an installation groove 1603 is formed in one end of the anti-abrasion sleeve 16, and an ash blocking net 17 is installed on one side of the installation groove 1603.

Further, the one end that the flue gas got into case 3 is provided with fixing base 301, through 4 fixed connection of set screw between fixing base 301 and the mount pad 2, the one end that the flue gas discharged the case 6 is provided with fixing base two 601, through two 7 fixed connection of set screw between fixing base two 601 and the mount pad two 5, one side of flue gas discharged case 6 is provided with exhanst gas outlet 8, can improve the fastness of installation between flue gas got into case 3 and the preheater box 1, can improve the fastness of installation between flue gas discharged case 6 and the preheater box 1.

Further, lifting hooks 19 are installed on two sides of the fixed installation box 10, the lifting hooks 19 are four in number, the four lifting hooks 19 are symmetrical about the vertical center line of the fixed installation box 10, the lifting hooks 19 are connected with the fixed installation box 10 in a welded mode, the air preheater can be very easily lifted, and therefore the air preheater can be conveniently moved.

Further, heat transfer pipeline 14 is provided with a plurality of, and a plurality of heat transfer pipeline 14 can make the flue gas distribute out the heat through the heat transfer pipeline 14 that sets up in one side evenly distributed of seal retainer plate 13, can preheat the air like this to can reduce the energy consumption, avoid causing the wasting of resources.

Further, one end of the wear-resistant sleeve 16 is provided with an installation end 1601, and the periphery of the outer wall of the installation end 1601 is provided with a connection thread 1602 corresponding to the fixing thread 1402, so that the wear-resistant sleeve 16 and the heat exchange pipeline 14 can be conveniently connected and fixed.

Further, both ends of the dust blocking net 17 are provided with fixing feet 1701, the fixing feet 1701 are fixedly connected with the mounting grooves 1603 through fixing screws 18, the dust blocking net 17 and the abrasion-proof sleeve 16 can be conveniently mounted and fixed, dust in flue gas can be filtered through the arranged dust blocking net 17, abrasion of the heat exchange pipeline 14 caused by the dust is avoided, and therefore the service life of the heat exchange pipeline 14 is influenced.

The working principle is as follows: when in use, the smoke generated in the boiler is introduced into the preheater box body 1 from the smoke inlet box 3, the smoke is introduced into the heat exchange pipeline 14 from the anti-wear sleeve 16, then is discharged from the other end of the heat exchange pipeline 14, and finally is discharged from the smoke outlet 8, when the smoke passes through the heat exchange pipeline 14, the heat exchange pipeline 14 is heated to heat the heat exchange chamber 101, then the cold air is introduced into the heat exchange chamber 101 from the cold air inlet 11, the cold air can flow in the heat exchange chamber 101 through the installed baffle plate 15, so that the cold air can be better contacted with the heated heat exchange pipeline 14, the air can be heated through heat transfer, the heated air is discharged for use through the hot air outlet 12, the air can be very conveniently and effectively preheated through the arrangement, thereby the energy consumption can be reduced, the resource waste is avoided, when the air is preheated through the smoke, dust in the flue gas can cause wearing and tearing to heat exchange pipeline 14 to make heat exchange pipeline 14's life reduce, through installing abrasionproof sleeve pipe 16, ash blocking net 17 is installed to abrasionproof sleeve pipe 16's one end, ash blocking net 17 through the installation can effectually filter the dust in the flue gas, can effectually reduce the dust like this and cause the damage to heat exchange pipeline 14, can be very convenient dismantle the change to ash blocking net 17 after using a period, avoid ash blocking net 17 to appear the condition of jam.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An air preheater, includes preheater box (1), its characterized in that: one end of the preheater box body (1) is provided with a first mounting seat (2), one side of the first mounting seat (2) is provided with a flue gas inlet box (3), the other side of the preheater box body (1) is provided with a second mounting seat (5), one side of the second mounting seat (5) is provided with a flue gas outlet box (6), a support base (9) is arranged below the preheater box body (1), a fixed mounting box (10) is arranged above the preheater box body (1), the upper end of the fixed mounting box (10) is provided with a cold air inlet (11), one side of the cold air inlet (11) is provided with a hot air outlet (12), a heat exchange chamber (101) is arranged inside the preheater box body (1), sealing and fixing plates (13) are arranged on two sides inside the heat exchange chamber (101), and a heat exchange pipeline (14) is arranged on one side of the sealing and fixing plates (13), the inside of heat transfer pipeline (14) one end is provided with fixed slot (1401), the inner wall setting of fixed slot (1401) is provided with fixed screw thread (1402), baffling board (15) are installed to inner wall one side of heat transfer room (101), abrasionproof sleeve pipe (16) is installed to the one end of heat transfer pipeline (14), the one end of abrasionproof sleeve pipe (16) is provided with mounting groove (1603), ash blocking net (17) are installed to one side of mounting groove (1603).

2. An air preheater as recited in claim 1, wherein: the one end that the flue gas got into case (3) is provided with fixing base (301), through set screw (4) fixed connection between fixing base (301) and mount pad (2), the one end of flue gas exhaust case (6) is provided with fixing base two (601), through set screw two (7) fixed connection between fixing base two (601) and mount pad two (5), one side of flue gas exhaust case (6) is provided with exhanst gas outlet (8).

3. An air preheater as recited in claim 1, wherein: promotion couple (19) are installed to the both sides of fixed mounting case (10), promotion couple (19) are provided with four, four it is symmetrical about the perpendicular center line of fixed mounting case (10) to promote couple (19), promote couple (19) and fixed mounting case (10) welded connection.

4. An air preheater as recited in claim 1, wherein: the heat exchange pipes (14) are arranged in a plurality of numbers, and the heat exchange pipes (14) are uniformly distributed on one side of the sealing fixing plate (13).

5. An air preheater as recited in claim 1, wherein: one end of the anti-abrasion sleeve (16) is provided with a mounting end (1601), and connecting threads (1602) corresponding to the fixing threads (1402) are arranged on the periphery of the outer wall of the mounting end (1601).

6. An air preheater as recited in claim 1, wherein: both ends of the dust blocking net (17) are provided with fixing feet (1701), and the fixing feet (1701) are fixedly connected with the mounting grooves (1603) through fixing screws (18).