CN219977201U - Flue gas heat exchanger with filtering capability - Google Patents

Abstract

The utility model relates to the technical field of heat exchangers, in particular to a flue gas heat exchanger with a filtering function, which comprises a heat exchanger main body, wherein an air inlet pipe is fixed on one side of the heat exchanger main body, a connecting sleeve is penetrated into the air inlet pipe, and a supporting rod is fixed on one side of the inner part of the connecting sleeve. The connecting sleeve is connected with the air inlet pipe through the bolts, the first filter screen embedded through the connecting sleeve is convenient for filtering impurity dust particles and the like in smoke, meanwhile, the connecting sleeve supports and stabilizes the rotating blades through the supporting rods, the rotating blades are blown to rotate through the air pressure of the smoke circulation, the rotating blades penetrate through the first filter screen and are fixed with the connecting plate on the joint surface of the first filter screen, the cleaning brush is installed through the connecting plate, the cleaning brush is driven to brush the first filter screen when the rotating blades rotate, the first filter screen is prevented from being blocked, the circulation is prevented from being influenced, the connecting sleeve is screwed and disassembled through the threaded connection in a straight line mode when the cleaning is needed, and the inside is flushed.

Description

Flue gas heat exchanger with filtering capability

Technical Field

The utility model relates to the technical field of heat exchangers, in particular to a flue gas heat exchanger with a filtering function.

Background

A heat exchanger is a device that transfers a portion of the heat of a hot fluid to a cold fluid, also known as a heat exchanger. The heat exchanger plays an important role in chemical industry, petroleum, power, food and other industrial production, and can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in the chemical industry, so that the heat exchanger has wide application range. For example, a polytetrafluoroethylene heat exchanger for low temperature of a power plant is novel device equipment for recovering waste heat for reducing the temperature of discharged smoke of the power plant. The fluoroplastic heat exchanger can prevent acid corrosion and reduce the temperature of the flue gas to be within 100 ℃.

The efficient heat exchanger with the flue gas purifying and filtering functions comprises a tubular heat exchanger, wherein the tubular heat exchanger is composed of a plurality of heat exchange tube bundles, small balls are filled among the plurality of heat exchange tube bundles, two ends of the plurality of heat exchange tube bundles are respectively inserted into a bottom water tank and a top boiler barrel, an inlet of heat exchange medium water is connected to the bottom water tank, and an outlet of hot water after heat exchange is connected to the top boiler barrel. The device has the advantages of high-efficiency heat exchange, self-filtration, energy conservation, compact structure, easy cleaning and easy maintenance; the method comprises the following steps: CN203364651U takes gas filter's heat exchanger, including support (1), lower part exchange tube (3), upper portion exchange tube (8), flue gas entry (4), flue gas export (5), air inlet (6), hot air export (7) and dust remover (12), its characterized in that: the flue gas inlet (4) and the hot air outlet (7) are located the homonymy of support (1), air inlet (6) and flue gas outlet (5) be located the opposite side of support (1), upper portion exchange tube (8) be located the first half of support (1), lower part exchange tube (3) be located the second half of support (1), air inlet (6) be connected with equipartition plenum (10), dust remover (12) be connected with ash discharge port (14). The dust removing device is arranged in the tropical zone, so that the ash blocking phenomenon is not easy to occur.

In summary, the following technical problems exist in the prior art: when the existing heat exchanger works, smoke cannot be well filtered, and the condition that a long pipeline can accumulate a large amount of ash for a long time causes influence on smoothness and use of the heat exchanger.

Disclosure of Invention

The utility model aims to provide a flue gas heat exchanger with a filtering function, so as to solve the problems in the background technology.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a flue gas heat exchanger with filtering capability, includes the heat exchanger main part, one side of heat exchanger main part is fixed with the intake pipe, and the inside of intake pipe penetrates there is the connecting sleeve, connecting sleeve's inside one side is fixed with the bracing piece, and the inner wall of bracing piece wears out there is rotor blade, connecting sleeve's inside opposite side inlays and is equipped with first filter screen, rotor blade's one end is fixed with the connecting plate, and the cleaning brush is installed to the outer wall of connecting plate.

Preferably, the air inlet pipe is in threaded connection with the connecting sleeve, and the connecting sleeve is fixedly connected with the supporting rod.

Preferably, the connecting plate is detachably connected with the cleaning brush, and the cleaning brush is tightly attached to the first filter screen.

Preferably, the outer wall one side of intake pipe is provided with the apron, and the outer wall of apron is fixed with solid fixed ring, one side of gu fixed ring is connected with sealed pad, and the opposite side of sealed pad is provided with the lantern ring, the bottom mounting of apron has places the piece, and places the inside of piece and inlay and be equipped with high temperature resistant filter cotton, the axial inner wall of placing the piece inlays and is equipped with the second filter screen, and one side of second filter screen is provided with the baffle, the inside of heat exchanger main part is settled there is the filter chamber, and wears out to bear the shell in the inside of filter chamber, the inner wall one side of bearing the shell is fixed with the connecting rod, and the outside cover of connecting rod is equipped with the filter, outer wall one side of filter is fixed with the connecting block, and the axial connection of connecting block has the dwang, the outer wall of dwang is provided with the telescopic link, and the outside cover of telescopic link is equipped with the spring.

Preferably, the lantern ring is in threaded connection with the air inlet pipe, and the lantern ring is closely attached to the sealing gasket.

Preferably, the filter plate forms a rotating structure with the telescopic rod through the connecting block and the rotating rod, and forms an elastic structure with the bearing shell through the spring.

Preferably, the filter plate forms a rotating structure with the bearing shell through the connecting rod, and forms a sliding structure with the heat exchanger main body.

The above description shows that the technical problems to be solved by the present utility model can be solved by the above technical solutions of the present utility model.

Meanwhile, through the technical scheme, the utility model has at least the following beneficial effects:

the connecting sleeve is connected with the air inlet pipe through the bolts, the first filter screen embedded through the connecting sleeve is convenient for filtering impurity dust particles and the like in smoke, meanwhile, the connecting sleeve supports and stabilizes the rotating blades through the supporting rods, the rotating blades are blown to rotate through the air pressure of the smoke circulation, the rotating blades penetrate through the first filter screen and are fixed with the connecting plate on the joint surface of the first filter screen, the cleaning brush is installed through the connecting plate, the cleaning brush is driven to brush the first filter screen when the rotating blades rotate, the first filter screen is prevented from being blocked, the circulation is prevented from being influenced, the connecting sleeve is screwed and disassembled through the threaded connection in a straight line mode when the cleaning is needed, and the inside is flushed.

The cover plate penetrates and is attached to the air inlet pipe, the placing block is conveniently driven to enter the air inlet pipe, the placing block is conveniently and further filtered to improve the purity of smoke, dust and the like are prevented from being accumulated in the main body of the heat exchanger to affect use, the placing block passes through the fixed baffle plate to form a storage space with the second filter screen, the falling dust and impurity particles and the like are conveniently filtered and fall into the storage space, the cover plate is conveniently and uniformly detached and cleaned in the later stage, the high-temperature-resistant filter cotton embedded on one side of the placing block is further improved, the filtering effect and the purity of the smoke are further improved, when the cover plate is attached to the air inlet pipe, the screwing sleeve ring covers the attachment position of the cover plate and the air inlet pipe to achieve the effect of fixed connection, meanwhile, the cover plate and the air inlet pipe are respectively welded with the fixed ring to form a circular ring, the screwing sleeve ring is conveniently limited, the screwing is prevented from excessively staggering gaps, and meanwhile the fixed ring is adhered to the sealing gasket to achieve a certain sealing performance.

When the flue gas enters the filter cavity of the heat exchanger main body through the air inlet pipe, the flue gas enters the next heat exchange process of the heat exchanger main body after being filtered again through the filter plate, the filter plate forms a rotating structure through the connecting rod penetrating out of the filter plate and the bearing shell, when the filter plate needs to be cleaned, the drawing bearing shell is separated from the heat exchanger main body, the filter plate is stressed when sliding and rotates through the connecting rod, meanwhile, the filter plate slides with the telescopic rod through the connecting block and the rotating rod, the telescopic rod contracts and compresses the spring, so that the filter plate is parallel to the bearing shell, the filter plate conveniently penetrates out of the heat exchanger main body to be cleaned along with the bearing shell, when the filter plate returns to the heat exchanger main body along with the bearing shell, the filter plate is conveniently reset through the elasticity of the spring, and meanwhile, the spring is prevented from bending or deforming through the support of the telescopic rod.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic view of the structure of the present utility model shown in FIG. 2 at a partially enlarged scale;

FIG. 4 is a schematic view of a partially enlarged structure of the present utility model at B in FIG. 2;

FIG. 5 is a schematic view of a placement block according to the present utility model;

fig. 6 is a schematic view of the structure of the filter plate of the present utility model.

In the figure: 1. a heat exchanger body; 2. an air inlet pipe; 3. a connecting sleeve; 4. rotating the blade; 5. a support rod; 6. a connecting plate; 7. a cleaning brush; 8. a first filter screen; 9. a cover plate; 10. placing a block; 11. high temperature resistant filter cotton; 12. a baffle; 13. a second filter screen; 14. a collar; 15. a fixing ring; 16. a sealing gasket; 17. a filter chamber; 18. a filter plate; 19. a connecting block; 20. a spring; 21. a telescopic rod; 22. a rotating lever; 23. a connecting rod; 24. and a carrying shell.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Description of the preferred embodiments

As shown in fig. 1, 2 and 3, the present utility model provides a technical solution: the utility model provides a flue gas heat exchanger with filtering capability, including heat exchanger main part 1, one side of heat exchanger main part 1 is fixed with intake pipe 2, the inside of intake pipe 2 penetrates there is connecting sleeve 3, connecting sleeve 3's inside one side is fixed with bracing piece 5, rotating vane 4 is worn out to the inner wall of bracing piece 5, connecting sleeve 3's inside opposite side inlays and is equipped with first filter screen 8, rotating vane 4's one end is fixed with connecting plate 6, cleaning brush 7 is installed to connecting plate 6's outer wall, intake pipe 2 and connecting sleeve 3 threaded connection, connecting sleeve 3 and bracing piece 5 fixed connection, connecting plate 6 can dismantle with cleaning brush 7 and be connected, cleaning brush 7 closely laminates with first filter screen 8, connecting sleeve 3 is convenient for dismouting through bolted connection with intake pipe 2, impurity dust particle etc. in the filter flue gas is convenient for to first filter screen 8 that connecting sleeve 3 inlays dress, connecting sleeve 3 supports and stabilizes rotating vane 4 through bracing piece 5 simultaneously, through the atmospheric pressure of flue gas circulation, rotating vane 4 rotates, and with first filter screen 8 is worn through rotating vane 4, and with first 8's fixed connecting plate 6, cleaning brush 7 is installed to the outer wall of connecting plate 6, drive cleaning brush 7 when rotating vane 4 rotates, it is to drive cleaning brush 7 to first filter screen 8 through the first filter screen 8 to drive the threaded connection when the first filter screen is washed through the threaded connection, the first filter screen is washed out, the inside is required to be cleaned through the connection to the first filter screen of the connection, and is washed.

Example two

The scheme in the first embodiment is further described below in conjunction with a specific working manner, and the details are described below:

as shown in fig. 1, fig. 2, fig. 4 and fig. 5, as the preferred embodiment, on the basis of the above-mentioned mode, further, outer wall one side of intake pipe 2 is provided with apron 9, the outer wall of apron 9 is fixed with solid fixed ring 15, one side of solid fixed ring 15 is connected with sealed pad 16, the opposite side of sealed pad 16 is provided with lantern ring 14, the bottom mounting of apron 9 has place the piece 10, the inside of placing the piece 10 is inlayed and is equipped with high temperature resistant filter cotton 11, the axial inner wall of placing the piece 10 is inlayed and is equipped with second filter screen 13, one side of second filter screen 13 is provided with baffle 12, lantern ring 14 and intake pipe 2 threaded connection, lantern ring 14 and gu seal 16 closely laminate, apron 9 penetrates and laminate intake pipe 2, be convenient for drive place the piece 10 get into intake pipe 2, place the second filter screen 13 that the piece 10 inlays, be convenient for further carry out the filtration improves flue gas purity, thereby avoid dust etc. to deposit dust in heat exchanger main part 1 to influence the use, place the piece 10 through fixed baffle 12, form the reserve space with second filter between, the cotton impurity particle etc. that slides when being convenient for filter, the time, slide down to reserve space, be convenient for later stage apron 9 carries out the piece 10 and carry out the second filter screen 13, one side of the piece 10 is inlayed and is equipped with second filter screen 13, one side is equipped with baffle 12, seal ring 15 is screwed down and is formed at the same time, seal ring 15 is convenient for the realization, seal ring is screwed up with the end is convenient for 2, seal ring is convenient for, and is further to have the lid is screwed down, and is convenient for carry out, and is put down in the piece 2, and is put and has been put down in the heat 2, and is put through the heat-seal 9, and is further filter piece, is further in the equipment through the fixed.

As shown in fig. 2 and 6, as a preferred embodiment, further, on the basis of the above manner, the filter chamber 17 is arranged in the heat exchanger main body 1, the bearing shell 24 is penetrated out of the interior of the filter chamber 17, a connecting rod 23 is fixed on one side of the inner wall of the bearing shell 24, a filter plate 18 is sleeved outside the connecting rod 23, a connecting block 19 is fixed on one side of the outer wall of the filter plate 18, a rotating rod 22 is connected with the axial direction of the connecting block 19, a telescopic rod 21 is arranged on the outer wall of the rotating rod 22, a spring 20 is sleeved outside the telescopic rod 21, the filter plate 18 forms a rotating structure with the telescopic rod 21 through the connecting rod 19 and the rotating rod 22, the filter plate 18 forms an elastic structure with the bearing shell 24 through the spring 20, the filter plate 18 forms a rotating structure with the bearing shell 24 through the spring 20, a sliding structure is formed between the filter plate 18 and the bearing shell 24, when flue gas enters the filter chamber 17 of the heat exchanger main body 1 through the air inlet pipe 2 and enters a lower heat exchange procedure of the heat exchanger main body 1 after being filtered again, the filter plate 18 forms a rotating structure through the connecting rod 23 penetrating inside the bearing shell 24, when the filter plate 18 needs to be cleaned, the filter plate 24 is separated from the heat exchanger main body 18, the filter plate is separated from the bearing shell 18 through the spring 18 and the bearing shell 18 and the filter plate 20 and the bearing shell 20 is compressed through the sliding rod 24, simultaneously, the filter plate is compressed and the bearing shell 20 is compressed through the bearing shell 24 and the bearing shell 24 through the spring 1 and the bearing shell 24 simultaneously, and the filter plate 1 is compressed and the bearing shell 20 is convenient, while the spring 20 is prevented from being bent or deformed by the support of the telescopic rod 21.

From the above, it can be seen that:

the utility model aims at the technical problems that: when the existing heat exchanger works, smoke cannot be well filtered, and a long pipeline can accumulate a large amount of ash, so that smoothness and use of the heat exchanger are affected; the technical scheme of each embodiment is adopted. Meanwhile, the implementation process of the technical scheme is as follows:

the heat exchanger main body 1 is convenient for introducing smoke through the air inlet pipe 2, the connecting sleeve 3 penetrates the air inlet pipe 2 and is in threaded connection for convenient disassembly and assembly, the supporting rod 5 fixed inside the connecting sleeve 3 internally penetrates out the rotating blade 4, meanwhile, the connecting plate 6 fixed at one end of the rotating blade 4 is attached to the first filter screen 8 embedded by the connecting sleeve 3, the cleaning brush 7 is installed at the attachment position of the connecting plate 6 and the first filter screen 8, smoke flowing through the first filter screen 8 is filtered to avoid entering of impurity dust, thus causing blockage and the like of the heat exchanger, the rotating blade 4 is impacted to rotate under the pressure of smoke flowing, the supporting rod 5 supports the rotating blade 4 to drive the connecting plate 6 to rotate, thereby enabling the cleaning brush 7 to attach to the first filter screen 8 to rotate, facilitating cleaning of adsorbed dust impurities and avoiding blockage caused by excessive accumulation, when cleaning is needed, the cover plate 9 drives the placing block 10 to penetrate into the air inlet pipe 2 through the dismounting connecting sleeve 3, the placing block 10 filters through the embedded second filter screen 13, meanwhile, the baffle 12 fixed by the placing block 10 is placed to form a semi-closed space, filtered impurities and dust which slide off from the second filter screen 13 are convenient to remain, meanwhile, the high-temperature resistant filter cotton 11 is embedded in the placing block 10, the filtering efficiency is further improved, the lantern ring 14 is in threaded connection with the air inlet pipe 2, when the cover plate 9 is attached to the air inlet pipe 2, the lantern ring 14 is rotated to cover the joint of the placing block 10 and the air inlet pipe 2, the later dismounting is convenient to fix, meanwhile, the cover plate 9 and the air inlet pipe 2 are distributed with the welding fixing rings 15 and are adhered with the sealing gasket 16, the limiting lantern ring 14 is convenient to avoid excessive screwing, meanwhile, the sealing effect is achieved through the sealing gasket 16, and smoke enters the filter cavity 17 of the main body 1 of the heat exchanger after being filtered, the filter plate 18 is filtered again and then subjected to the next heat exchange process, impurities in the flue gas are greatly removed, the situation of dust collection blockage is avoided, a connecting rod 23 penetrating out of one end of the filter plate 18 is fixed on the inner wall of a bearing shell 24, meanwhile, a connecting block 19 is fixed at the other end of the filter plate 18, a rotating rod 22 is fixed on the connecting block 19, the rotating rod 22 penetrates through a telescopic rod 21, when the drawing bearing shell 24 is separated from the heat exchanger main body 1, the filter plate 18 is pressed by the heat exchanger main body 1, the connecting rod 23 rotates, meanwhile, the filter plate 18 stretches out and draws back and rotates through the telescopic rod 21, and is parallel to the bearing shell 24, the bearing shell 24 is conveniently separated from the heat exchanger main body 1 for cleaning or replacement, a spring 20 is sleeved outside the telescopic rod 21, and the telescopic return of the filter plate 18 is facilitated through the elasticity of the spring 20.

Through the arrangement, the utility model can solve the technical problems, and simultaneously realize the following technical effects:

the cover plate 9 penetrates and is attached to the air inlet pipe 2, the placing block 10 is conveniently driven to enter the air inlet pipe 2, the second filter screen 13 embedded in the placing block 10 is conveniently and further filtered to improve the purity of smoke, dust and the like are prevented from being deposited in the heat exchanger main body 1 to affect use, the placing block 10 forms a retaining space with the second filter screen 13 through the fixed baffle plate 12, dust impurity particles and the like which fall off during filtering are convenient to fall into the retaining space, the cover plate 9 is conveniently and uniformly detached and cleaned in the later stage, the high-temperature resistant filter cotton 11 embedded on one side of the placing block 10 is further improved in filtering effect and the purity of smoke, when the cover plate 9 is attached to the air inlet pipe 2, the cover plate 9 and the air inlet pipe 2 are screwed to be covered at the attaching position of the cover plate 9 and the air inlet pipe 2, the cover plate 9 and the air inlet pipe 2 are respectively welded with the fixed ring 15, the fixed ring 15 forms a circular ring, the limit of the screwed cover plate 14 is convenient to avoid excessively staggered gaps due to screwing, and the fixed ring 15 is adhered with the sealing gasket 16 to play a certain sealing performance;

when flue gas enters the filter cavity 17 of the heat exchanger main body 1 through the air inlet pipe 2, is filtered again through the filter plate 18 and then enters the next heat exchange process of the heat exchanger main body 1, the filter plate 18 and the bearing shell 24 form a rotating structure through the connecting rod 23 penetrating out of the inside, when the filter plate 18 needs to be cleaned, the bearing shell 24 is pulled to be separated from the heat exchanger main body 1, the filter plate 18 is stressed when sliding and rotates through the connecting rod 23, meanwhile, the filter plate 18 slides with the telescopic rod 21 through the connecting block 19 and the rotating rod 22, and is contracted through the telescopic rod 21, and simultaneously compresses the spring 20, so that the filter plate 18 is parallel to the bearing shell 24, and is convenient to penetrate out of the heat exchanger main body 1 along with the bearing shell 24 for cleaning, when the filter plate 18 returns to the heat exchanger main body 1 along with the bearing shell 24, the elasticity of the spring 20 is convenient to reset, and meanwhile, the spring 20 is prevented from bending or deforming through the support of the telescopic rod 21.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a flue gas heat exchanger with filtering capability, its characterized in that, including heat exchanger main part (1), one side of heat exchanger main part (1) is fixed with intake pipe (2), and the inside of intake pipe (2) penetrates there is connecting sleeve (3), inside one side of connecting sleeve (3) is fixed with bracing piece (5), and the inner wall of bracing piece (5) wears out has rotor blade (4), the inside opposite side of connecting sleeve (3) is inlayed and is equipped with first filter screen (8), the one end of rotor blade (4) is fixed with connecting plate (6), and cleaning brush (7) are installed to the outer wall of connecting plate (6).

2. A flue gas heat exchanger with filtering function according to claim 1, wherein the air inlet pipe (2) is in threaded connection with the connecting sleeve (3), and the connecting sleeve (3) is fixedly connected with the supporting rod (5).

3. A flue gas heat exchanger with filtering capability according to claim 1, characterized in that the connection plate (6) is detachably connected with the cleaning brush (7), and the cleaning brush (7) is tightly attached to the first filter screen (8).

4. The flue gas heat exchanger with filtering capability according to claim 1, characterized in that, outer wall one side of intake pipe (2) is provided with apron (9), and the outer wall of apron (9) is fixed with solid fixed ring (15), one side of gu fixed ring (15) is connected with sealed pad (16), and the opposite side of sealed pad (16) is provided with lantern ring (14), the bottom mounting of apron (9) has places piece (10), and places the inside of piece (10) and inlay and be equipped with high temperature resistant filter cotton (11), the axial inner wall of placing piece (10) is inlayed and is equipped with second filter screen (13), and one side of second filter screen (13) is provided with baffle (12), the inside of heat exchanger main part (1) is settled and is had filter chamber (17), and the inside of filter chamber (17) is worn out and is had carrier shell (24), inner wall one side of carrier shell (24) is fixed with connecting rod (23), and the outside cover of connecting rod (23) is equipped with filter plate (18), outer wall one side of filter plate (18) is fixed with connecting block (19), and the axial connection of placing piece (10) is equipped with high temperature resistant filter cotton (11), and the outside of connecting rod (21), and outer wall (21) of connecting rod (21) are equipped with telescopic link (21).

5. A flue gas heat exchanger with filtering function according to claim 4, wherein the collar (14) is screwed with the inlet pipe (2), and the collar (14) is tightly fitted with the gasket (16).

6. A flue gas heat exchanger with filtering function according to claim 4, wherein the filter plate (18) forms a rotating structure between the rotating rod (22) and the telescopic rod (21) through the connecting block (19), and the filter plate (18) forms an elastic structure between the spring (20) and the bearing shell (24).

7. A flue gas heat exchanger with filtering function according to claim 4, wherein the filter plate (18) forms a rotating structure between the connecting rod (23) and the carrying shell (24), and a sliding structure between the carrying shell (24) and the heat exchanger body (1).