CN214173041U

CN214173041U - Waste heat recovery heat exchanger

Info

Publication number: CN214173041U
Application number: CN202120013911.3U
Authority: CN
Inventors: 韩金荣; 钟林浩; 付宝龙
Original assignee: Hangzhou Xinlan Energy Engineering Co ltd
Current assignee: Hangzhou Xinlan Energy Engineering Co ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-09-10
Anticipated expiration: 2031-01-05

Abstract

The utility model relates to the technical field of heat exchangers, in particular to a waste heat recovery heat exchanger, which comprises a shell, a heat exchange module arranged in the shell, and an air inlet and an air outlet which are arranged on the shell; the interior of the shell is divided into an upper heat exchange chamber and a lower air inlet chamber by a horizontally arranged partition plate, and the air inlet is arranged on the air inlet chamber; a vertically arranged filter screen cylinder with an open upper end is arranged in the air inlet cavity; a spray pipe is arranged in the air inlet cavity, wherein a plurality of spray heads are arranged on the spray pipe; the shell is also provided with a driving mechanism for driving the filter screen cylinder to rotate. The filter screen cylinder can be driven to rotate by the driving mechanism, and the spray head which sprays water towards the filter screen cylinder is arranged in the air inlet cavity, so that the side wall of the filter screen cylinder can be washed by the spray head when the filter screen cylinder needs to be cleaned in the later period, and meanwhile, the drive mechanism drives the filter screen cylinder to rotate, so that the whole side wall of the filter screen cylinder can be washed.

Description

Waste heat recovery heat exchanger

Technical Field

The utility model relates to a heat exchanger technical field especially relates to a waste heat recovery heat exchanger.

Background

Contain a large amount of fibrous materials in the exhaust waste gas in present textile mill and the production of chemical fiber factory, these fibrous materials accumulate for a long time and cause the jam problem easily at equipment in the deposit, lead to the unable operation of flue gas system, consequently can set up the filter in the inside of heat exchanger usually, with the debris in filtering waste gas, however the filter is after long-term the use, its surperficial more filth that can adhere to, can influence its filter effect, consequently, need pull down the filter and wash, can increase the amount of labour undoubtedly like this.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a waste heat recovery heat exchanger.

In order to solve the technical problem, the technical scheme of the utility model is that:

a waste heat recovery heat exchanger comprises a shell, a heat exchange module arranged in the shell, and an air inlet and an air outlet which are arranged on the shell; the interior of the shell is divided into an upper heat exchange chamber and a lower air inlet chamber by a horizontally arranged partition plate, and the air inlet is arranged on the air inlet chamber; a vertically arranged filter screen cylinder with an open upper end is arranged in the air inlet cavity, wherein the filter screen cylinder is in a conical shape with a wide upper part and a narrow lower part; the open end of the filter screen cylinder is rotatably connected to the partition plate and communicated with the heat exchange chamber; a spray pipe is arranged in the air inlet chamber, wherein a plurality of spray heads facing the side wall of the filter screen cylinder are arranged on the spray pipe; the shell is also provided with a driving mechanism for driving the filter screen cylinder to rotate.

Furthermore, the driving mechanism comprises a lantern ring fixedly connected to the outer wall of the open end of the filter screen cylinder and coaxially arranged with the filter screen cylinder, a toothed ring fixedly connected to the outer wall of the lantern ring and coaxially arranged with the lantern ring, and a motor fixedly connected to the outer wall of the shell; the lantern ring is rotatably connected to the partition plate; and a main shaft of the motor extends into the shell and is fixedly connected with a bevel gear, wherein the bevel gear is meshed with the gear ring.

Further, the lower end of the shell is fixedly connected with a drain pipe, wherein a valve is arranged on the drain pipe.

Further, a brush is further arranged in the air inlet chamber, the end part of a brush handle of the brush is fixedly connected to the partition plate, and bristles of the brush are abutted to the side wall of the filter screen cylinder.

Further, the heat exchange module comprises a water inlet main pipe, a water outlet main pipe and a plurality of coiled pipes which are fixedly connected in the heat exchange cavity side by side, wherein the upper ends of the coiled pipes are connected to the water inlet main pipe, and the lower ends of the coiled pipes are connected to the water outlet main pipe.

Compare prior art, the utility model has the advantages that:

the utility model discloses a set up coniform filter screen section of thick bamboo, so alright carry out filtration treatment to waste gas, coniform filter screen section of thick bamboo is bigger than flat-plate-shaped filter moreover, its filter area.

The utility model discloses in, the filter screen section of thick bamboo can be rotatory by the actuating mechanism drive to be equipped with the shower nozzle towards the water spray of filter screen section of thick bamboo in the chamber of admitting air, so later stage when needs clearance filter screen section of thick bamboo, can wash the lateral wall of filter screen section of thick bamboo by the shower nozzle water spray, rotate by actuating mechanism drive filter screen section of thick bamboo simultaneously, so alright wash the whole lateral wall of filter screen section of thick bamboo.

Drawings

Fig. 1 is a schematic structural view of the present invention;

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

fig. 3 is a cross-sectional view of the present invention.

Reference numerals: 1. a housing; 11. a partition plate; 12. an air intake chamber; 121. an air inlet; 13. a heat exchange chamber; 131. an air outlet; 2. a heat exchange module; 21. a main water inlet pipe; 22. a main water outlet pipe; 23. a serpentine tube; 3. a filter screen cylinder; 4. a shower pipe; 41. a spray head; 42. a water pump; 5. a brush; 51. a brush handle; 52. brushing; 6. a drive mechanism; 61. a collar; 62. a toothed ring; 63. a bevel gear; 64. a motor; 7. a blow-off pipe; 71. and (4) a valve.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

Example (b):

referring to fig. 1, the embodiment provides a waste heat recovery heat exchanger, which includes a housing 1, a heat exchange module 2 disposed in the housing 1, and an air inlet 121 and an air outlet 131 disposed on the housing 1;

wherein the air inlet 121 is used for the entry of waste gas, and the air outlet 131 is used for the discharge of waste gas, in this embodiment, the air outlet 131 is arranged at the upper end of the housing 1.

Referring to fig. 2, the inside of the housing 1 is divided into an upper heat exchange chamber 13 and a lower air inlet chamber 12 by a horizontal partition plate 11, and the heat exchange module 2 is disposed in the heat exchange chamber 13 and used for exchanging heat with the exhaust gas and recovering the waste heat in the exhaust gas.

As shown in fig. 1, the heat exchange module 2 includes a main water inlet pipe 21, a main water outlet pipe 22, and a plurality of serpentine pipes 23 fixedly connected in parallel in the heat exchange chamber 13; in this embodiment, the serpentine pipes 23 are all vertically arranged, the upper ends of the serpentine pipes 23 are all connected to the water inlet main pipe 21, and the lower ends of the serpentine pipes 23 are all connected to the water outlet main pipe 42. In this way, only cold water is introduced into the main water inlet pipe 21, so that the cold water flows in the coiled pipe 23 and is finally discharged out of the main water outlet pipe 22, and in the process, the high-temperature exhaust gas exchanges heat with the coiled pipe 23 when passing through the coiled pipe 23, so that heat is transferred to the cold water in the coiled pipe 23, and waste heat is recovered.

As shown in fig. 3, the gas inlet 121 is disposed on the gas inlet chamber 12; a vertically arranged filter screen cylinder 3 with an open upper end is arranged in the air inlet chamber 12.

Wherein the filter screen cylinder 3 is in a cone shape with a wide upper part and a narrow lower part; the peripheral wall of the filter screen cylinder 3 is provided with filter holes for filtering the exhaust gas, and the conical filter screen cylinder 3 has a larger filter area than the flat-plate-shaped filter plate.

The open end of the filter screen cylinder 3 is rotatably connected to the clapboard 11 and is communicated with the heat exchange chamber 13; a spray pipe 4 is arranged in the air inlet cavity 12, wherein a plurality of spray heads 41 facing the side wall of the filter screen cylinder 3 are arranged on the spray pipe 4; the shell 1 is also provided with a driving mechanism 6 for driving the filter screen cylinder 3 to rotate.

Through the above arrangement, when the filter screen cylinder 3 needs to be cleaned, the driving mechanism 6 can be opened to drive the filter screen cylinder 3 to rotate, and meanwhile, the water pump 42 is utilized to pump cleaning water into the spray pipe 4, so that the cleaning water is finally sprayed to the outer wall of the filter screen cylinder 3 through the spray head 41 to wash away dirt attached to the outer wall of the filter screen cylinder 3. Since the screen cylinder 3 is continuously rotated, the nozzle 41 can flush the entire side wall of the screen cylinder 3.

In this embodiment, the driving mechanism 6 includes a collar 61 fixedly connected to the outer wall of the open end of the filter screen cylinder 3 and coaxially arranged with the filter screen cylinder 3, a gear ring 62 fixedly connected to the outer wall of the collar 61 and coaxially arranged with the collar 61, and a motor 64 fixedly connected to the outer wall of the housing 1; the lantern ring 61 is rotatably connected to the partition plate 11; the main shaft of the motor 64 extends into the housing 1 and is fixedly connected with a bevel gear 63, wherein the bevel gear 63 is engaged with the toothed ring 62.

It should be noted that the gear ring 62 is a bevel gear ring adapted to the bevel gear 63 to ensure that the two can be engaged normally. The collar 61 is made of a rigid material and is mainly used for fixing the filter screen cylinder 3 and the mounting toothed ring 62. During operation, the motor 64 drives the bevel gear 63 to rotate, and further drives the gear ring 62 to rotate, so as to drive the lantern ring 61 and the filter screen cylinder 3 to integrally rotate together.

In order to facilitate the discharge of sewage generated during the cleaning of the filter screen cylinder 3, in this embodiment, a drain pipe 7 is fixedly connected to the lower end of the housing 1, wherein a valve 71 is disposed on the drain pipe 7. When discharging sewage, only the valve 71 is needed to be opened.

In order to achieve a better cleaning effect on the filter screen cylinder 3, in this embodiment, a brush 5 is further disposed in the air inlet chamber 12, wherein the brush 5 is composed of a brush holder 51 and a brush 5 disposed on the brush holder 51.

The end part of a brush handle 51 of the brush 5 is fixedly connected to the partition plate 11, and the bristles 52 of the brush 5 are abutted against the side wall of the filter screen cylinder 3. When the filter screen cylinder 3 is rotated to wash, the brush hair 52 of the brush 5 can clean the outer wall of the filter screen cylinder 3, so that the cleaning effect can be improved.

The implementation principle is as follows:

when the waste heat is recovered, high-temperature waste gas is introduced into the air inlet chamber 12 from the air inlet 121, the waste gas is filtered by the filter screen cylinder 3 in the air inlet chamber 12 and then enters the heat exchange chamber 13, the waste gas and the coiled pipe 23 in the heat exchange chamber 13 realize heat exchange, the waste heat is recovered, and finally the waste gas is discharged from the air outlet 131.

When the filter screen cylinder 3 needs to be cleaned, the motor 64 can drive the filter screen cylinder 3 to rotate, meanwhile, the water pump 42 is utilized to supply water to the spraying pipe 4, so that the spray head 41 on the spraying pipe 4 can wash the peripheral wall of the filter screen cylinder 3, the filter screen cylinder 3 continuously rotates, so that the spray head 41 can wash the whole peripheral wall of the filter screen cylinder 3, and when the filter screen cylinder 3 rotates, the outer wall of the filter screen cylinder continuously rubs with the bristles 52 of the brush 5, so that dirt on the outer wall of the filter screen cylinder is further cleaned through the brush 5.

Above only the typical example of the utility model discloses, in addition, the utility model discloses can also have other multiple concrete implementation manners, all adopt the technical scheme that equivalent replacement or equivalent transform formed, all fall in the utility model discloses the scope of claiming.

Claims

1. A waste heat recovery heat exchanger comprises a shell, a heat exchange module arranged in the shell, and an air inlet and an air outlet which are arranged on the shell; the method is characterized in that: the interior of the shell is divided into an upper heat exchange chamber and a lower air inlet chamber by a horizontally arranged partition plate, and the air inlet is arranged on the air inlet chamber; a vertically arranged filter screen cylinder with an open upper end is arranged in the air inlet cavity, wherein the filter screen cylinder is in a conical shape with a wide upper part and a narrow lower part; the open end of the filter screen cylinder is rotatably connected to the partition plate and communicated with the heat exchange chamber; a spray pipe is arranged in the air inlet chamber, wherein a plurality of spray heads facing the side wall of the filter screen cylinder are arranged on the spray pipe; the shell is also provided with a driving mechanism for driving the filter screen cylinder to rotate.

2. A heat recovery heat exchanger as recited in claim 1 wherein: the driving mechanism comprises a lantern ring which is fixedly connected to the outer wall of the open end of the filter screen cylinder and is coaxially arranged with the filter screen cylinder, a toothed ring which is fixedly connected to the outer wall of the lantern ring and is coaxially arranged with the lantern ring, and a motor which is fixedly connected to the outer wall of the shell; the lantern ring is rotatably connected to the partition plate; and a main shaft of the motor extends into the shell and is fixedly connected with a bevel gear, wherein the bevel gear is meshed with the gear ring.

3. A heat recovery heat exchanger as recited in claim 2 wherein: the lower end of the shell is fixedly connected with a drain pipe, wherein a valve is arranged on the drain pipe.

4. A heat recovery heat exchanger as recited in claim 1 wherein: the air inlet chamber is also internally provided with a brush, the end part of a brush handle of the brush is fixedly connected to the partition plate, and the bristles of the brush are abutted against the side wall of the filter screen cylinder.

5. A heat recovery heat exchanger according to any one of claims 1 to 4, characterized in that: the heat exchange module comprises a water inlet main pipe, a water outlet main pipe and a plurality of side-by-side serpentine pipes fixedly connected in the heat exchange cavity, wherein the upper ends of the serpentine pipes are connected to the water inlet main pipe, and the lower ends of the serpentine pipes are connected to the water outlet main pipe.