Air preheater structure driven by waste heat

Abstract

The utility model discloses an air preheater structure driven by waste heat, which relates to the field of air preheaters and comprises a shell, a heat exchange component is fixedly mounted in the shell, an air inlet pipe and an air outlet pipe are simultaneously inserted into the shell, a mounting plate is fixedly mounted at one end of the shell, and a sealing component is movably mounted on the mounting plate. The sealing assembly is composed of a handle rod, square rods, bottom plates, top plates and springs, the two square rods are fixedly installed at the two ends of the handle rod respectively, the two square rods are fixedly sleeved with the two bottom plates respectively, and the two top plates are fixedly installed at the upper ends of the square rods respectively. According to the air preheater, the filter assembly can filter air entering the air preheater, so that dust in the air is effectively intercepted, the dust accumulation speed on the heat exchange assembly is reduced, and finally it is guaranteed that the air preheater can keep good heat exchange efficiency, so that the air entering the air compressor can be effectively preheated, and meanwhile the air quality is improved. And the cleaning frequency of the air preheater can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of air preheater, especially a waste heat driven air preheater structure. BACKGROUND

[0002] The high-temperature compressed air generated by the operation of the air compressor is used to preheat the intake air, which can significantly improve the system energy efficiency and reliability. Through waste heat recovery technology, the waste heat of high-temperature compressed air is transferred to the intake end, reducing the energy consumption when compressing cold air, and avoiding the generation of condensed water caused by low temperature, preventing water and lubricating oil from mixing and emulsifying, and protecting the cylinder and pipeline from corrosion and wear. The preheated intake air not only alleviates the difficulty of starting the equipment in extremely cold environments, but also balances the air density and compression efficiency, avoiding mechanical overload. In addition, this technology reduces the dependence on auxiliary heating equipment, reduces carbon emissions, prolongs the service life of the core components of the air compressor, and comprehensively realizes energy saving, stable operation and cost saving, which is a key measure for optimizing energy utilization in the industrial field.

[0003] However, when using high-temperature compressed air generated by the operation of the air compressor and air preheater to preheat the intake air of the air compressor, the air entering the air preheater often contains a certain amount of dust, which will adhere to the heat exchange components in the air preheater, affecting the heat exchange efficiency and increasing the cleaning and maintenance cost of the air preheater. Therefore, the present application proposes a waste heat driven air preheater structure to solve the above problems. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a waste heat driven air preheater structure, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0006] A waste heat driven air preheater structure, comprising a shell, a heat exchange component fixedly installed in the shell, an air inlet pipe and an air outlet pipe simultaneously inserted into the shell, an installation plate fixedly installed at one end of the shell, a sealing component movably installed on the installation plate, the sealing component composed of a handle rod, two square rods, a bottom plate, a top plate and a spring, the two square rods fixedly installed at both ends of the handle rod, the bottom plate fixedly sleeved on the two square rods, the top plate fixedly installed at the upper end of the square rod, the spring sleeved on the two square rods, a filter component fixedly installed at the lower end of the two square rods, the filter component simultaneously installed in the air inlet pipe, the filter component composed of an arc-shaped plate, a coarse filter plate, a secondary filter plate and a fine filter plate, the coarse filter plate, the secondary filter plate and the fine filter plate fixedly installed on the inner wall of the arc-shaped plate.

[0007] Preferably, the shell is composed of a base shell, a front sealing plate and a rear sealing plate, both the front sealing plate and the rear sealing plate are fixedly installed on the inner wall of the base shell.

[0008] Preferably, the heat exchange assembly is composed of heat exchange pipes and heat exchange fins, the heat exchange fins are a plurality of and are all fixedly sleeved on the heat exchange pipes, the heat exchange fins are located in the base shell, and both ends of the heat exchange pipes all pass through the shell outward.

[0009] Preferably, the air inlet pipe is fixedly inserted on the front sealing plate, and a slot is formed in the air inlet pipe, the slot penetrates the wall of the air inlet pipe, and the air outlet pipe is fixedly inserted on the rear sealing plate.

[0010] Preferably, the mounting plate is fixedly installed on the outer end of the front sealing plate, and two square holes are symmetrically formed in the mounting plate.

[0011] Preferably, the square rods of the sealing assembly are slidably installed in the square holes of the mounting plate, the top plate is located above the mounting plate, the handle rod is located below the mounting plate, the bottom plate is located between the mounting plate and the handle rod, and the spring is located between the bottom plate and the mounting plate.

[0012] Preferably, the arc-shaped plate of the filtering assembly is fixedly installed on the lower ends of the two square rods and is simultaneously inserted in the slot, the coarse filter plate, the secondary filter plate and the fine filter plate are all located in the air inlet pipe, the coarse filter plate is located outside the fine filter plate, and the secondary filter plate is located between the coarse filter plate and the fine filter plate.

[0013] Compared with the prior art, the air preheater has the following beneficial effects:

[0014] By arranging the filtering assembly in the air inlet pipe, the filtering assembly can filter the air entering the air preheater, thereby effectively intercepting dust in the air, reducing the speed of dust accumulation on the heat exchange assembly, and finally ensuring that the air preheater can maintain good heat exchange efficiency, so that the air entering the air compressor can be effectively preheated, and the cleaning frequency of the air preheater can be reduced, thereby reducing the cleaning and maintenance cost of the air preheater; by arranging the sealing assembly and installing the filtering assembly on the sealing assembly, the filtering assembly can be conveniently disassembled and replaced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the air preheater;

[0016] Figure 2 It is a structure schematic view of the shell after being disassembled;

[0017] Figure 3 It is a structure schematic view of the sealing assembly and the filtering assembly of the air preheater;

[0018] Figure 4 The exploded view of the filter assembly of the utility model.

[0019] In the figure: 1, the shell; 2, heat exchange component; 3, air inlet pipe; 4, air outlet pipe; 5, mounting plate; 6, sealing assembly; 7, filter assembly; 8, base shell; 9, front sealing plate; 10, rear sealing plate; 11, heat exchange pipe; 12, heat exchange fin; 13, slot; 14, handle bar; 15, square bar; 16, bottom plate; 17, top plate; 18, spring; 19, arc plate; 20, coarse filter plate; 21, secondary filter plate; 22, fine filter plate. DETAILED DESCRIPTION

[0020] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0021] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a waste heat-driven air preheater structure includes a shell 1, a heat exchange assembly 2 fixedly installed inside the shell 1, an inlet pipe 3 and an outlet pipe 4 inserted into the shell 1, a mounting plate 5 fixedly installed at one end of the shell 1, and a sealing assembly 6 movably installed on the mounting plate 5. The sealing assembly 6 consists of a handle 14, square rods 15, a base plate 16, a top plate 17, and springs 18. There are two square rods 15, which are respectively fixedly installed at both ends of the handle 14. There are two base plates 16, which are respectively fixedly sleeved on the two square rods 15. The top plate 17 has... Two springs 18 are fixedly installed on the upper ends of the square rods 15 respectively. Two springs 18 are respectively sleeved on the two square rods 15. A filter assembly 7 is fixedly installed on the lower ends of the two square rods 15. The filter assembly 7 is also installed inside the intake pipe 3. The filter assembly 7 consists of an arc-shaped plate 19, a coarse filter plate 20, a secondary filter plate 21, and a fine filter plate 22. The coarse filter plate 20, the secondary filter plate 21, and the fine filter plate 22 are all fixedly installed on the inner wall of the arc-shaped plate 19. The housing 1 consists of a base shell 8, a front sealing plate 9, and a rear sealing plate 10. The front sealing plate 9... Both the rear sealing plate 10 and the heat exchange assembly 2 are fixedly installed on the inner wall of the base shell 8. The heat exchange assembly 2 consists of heat exchange tubes 11 and heat exchange fins 12. There are several heat exchange fins 12, all of which are fixedly sleeved on the heat exchange tubes 11. The heat exchange fins 12 are located inside the base shell 8. Both ends of the heat exchange tubes 11 extend outward through the shell 1. In use, both ends of the heat exchange tubes 11 of the heat exchange assembly 2 can be connected to the air outlet of the air compressor and the subsequent compressed air treatment system, respectively. At the same time, the air outlet pipe 4 is connected to the air inlet of the air compressor. During operation, the high-temperature and high-pressure gas generated by the air compressor enters the air outlet. The heat exchange tube 11 is filled with air, while external air enters the housing 1 through the inlet pipe 3. The air then exchanges heat with the high-temperature and high-pressure gas in the heat exchange tube 11. The high-temperature and high-pressure gas that has completed the heat exchange then enters the subsequent compressed air treatment system. The preheated air enters the air compressor through the outlet pipe 4. When external air enters the housing 1 through the inlet pipe 3, the filter assembly 7 filters the air, effectively intercepting dust in the air. When the filter assembly 7 needs to be replaced or maintained, it can be disassembled and reassembled through the sealing assembly 6.

[0022] Finally, by installing a filter assembly 7 inside the intake pipe 3, the filter assembly 7 can filter the air entering the air preheater, thereby effectively intercepting dust in the air and reducing the rate of dust accumulation on the heat exchange assembly 2. This ensures that the air preheater can maintain good heat exchange efficiency, so that the air entering the air compressor can be effectively preheated, while also reducing the frequency of air preheater cleaning, thereby reducing the cleaning and maintenance costs of the air preheater. By setting a sealing assembly 6 and installing the filter assembly 7 on the sealing assembly 6, it is easy to disassemble and replace the filter assembly 7.

[0023] Specifically, the air inlet pipe 3 is fixedly inserted on the front sealing plate 9, and the air inlet pipe 3 is provided with an insertion slot 13 penetrating the wall of the air inlet pipe 3, the air outlet pipe 4 is fixedly inserted on the rear sealing plate 10, the mounting plate 5 is fixedly mounted on the outer end of the front sealing plate 9, two square holes are symmetrically provided on the mounting plate 5, the square rods 15 on the sealing assembly 6 are slidingly mounted in the square holes of the mounting plate 5, the top plate 17 is located above the mounting plate 5, the handle rod 14 is located below the mounting plate 5, the bottom plate 16 is located between the mounting plate 5 and the handle rod 14, the spring 18 is located between the bottom plate 16 and the mounting plate 5, the arc-shaped plate 19 on the filtering assembly 7 is fixedly mounted on the lower ends of the two square rods 15, and the arc-shaped plate 19 is simultaneously inserted in the insertion slot 13, the coarse filtering plate 20, the secondary filtering plate 21 and the fine filtering plate 22 are located in the air inlet pipe 3, the coarse filtering plate 20 is located outside the fine filtering plate 22, the secondary filtering plate 21 is located between the coarse filtering plate 20 and the fine filtering plate 22, the coarse filtering plate 20 is made of metal wire mesh and synthetic fiber, the secondary filtering plate 21 is made of glass fiber and electrostatic cotton, and the fine filtering plate 22 is made of high-efficiency particle air filter paper, during work, the coarse filtering plate 20, the secondary filtering plate 21 and the fine filtering plate 22 can sequentially filter air, when the filtering assembly 7 needs to be disassembled from the air inlet pipe 3 for replacement or maintenance, the square rods 15, the bottom plate 16 and the top plate 17 can be pushed upward by the handle rod 14, at this time, the square rods 15 can move upward with the filtering assembly 7, and the spring 18 can be compressed by the bottom plate 16 and the mounting plate 5, when the filtering assembly 7 is completely removed from the air inlet pipe 3, the coarse filtering plate 20, the secondary filtering plate 21 and the fine filtering plate 22 on the filtering assembly 7 can be replaced or maintained, when the maintenance or replacement of the coarse filtering plate 20, the secondary filtering plate 21 and the fine filtering plate 22 is completed, the handle rod 14 is loosened, at this time, under the elastic force of the spring 18, the filtering assembly 7 can move downward and be inserted into the air inlet pipe 3.

[0024] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. The protection scope of the present application is defined by the appended claims and equivalents thereof.

Claims

1. A waste heat driven air preheater structure, comprising a shell (1), wherein a heat exchange assembly (2) is fixedly installed inside the shell (1), and an air inlet pipe (3) and an air outlet pipe (4) are simultaneously inserted into the shell (1), characterized in that: A mounting plate (5) is fixedly installed at one end of the housing (1). A sealing assembly (6) is movably installed on the mounting plate (5). The sealing assembly (6) consists of a handle (14), a square rod (15), a base plate (16), a top plate (17), and a spring (18). There are two square rods (15) and they are fixedly installed at both ends of the handle (14). There are two base plates (16) and they are fixedly sleeved on the two square rods (15). There are two top plates (17) and they are fixedly installed on the square rods (15). At the upper end, there are two springs (18) respectively sleeved on two square rods (15). A filter assembly (7) is fixedly installed at the lower end of the two square rods (15). The filter assembly (7) is installed in the air intake pipe (3). The filter assembly (7) is composed of an arc plate (19), a coarse filter plate (20), a secondary filter plate (21), and a fine filter plate (22). The coarse filter plate (20), the secondary filter plate (21), and the fine filter plate (22) are all fixedly installed on the inner wall of the arc plate (19).

2. The waste heat driven air preheater structure according to claim 1, characterized in that: The housing (1) is composed of a base shell (8), a front sealing plate (9) and a rear sealing plate (10), and the front sealing plate (9) and the rear sealing plate (10) are both fixedly installed on the inner wall of the base shell (8).

3. The waste heat driven air preheater structure according to claim 2, characterized in that: The heat exchange assembly (2) consists of a heat exchange tube (11) and heat exchange fins (12). There are several heat exchange fins (12), all of which are fixedly sleeved on the heat exchange tube (11). The heat exchange fins (12) are located inside the base shell (8). Both ends of the heat exchange tube (11) pass outward through the shell (1).

4. The waste heat driven air preheater structure according to claim 3, characterized in that: The air intake pipe (3) is fixedly inserted into the front sealing plate (9), and a slot (13) is provided on the air intake pipe (3). The slot (13) penetrates the inner and outer walls of the air intake pipe (3), and the air outlet pipe (4) is fixedly inserted into the rear sealing plate (10).

5. The waste heat driven air preheater structure according to claim 4, characterized in that: The mounting plate (5) is fixedly installed on the outer end of the front sealing plate (9), and two square holes are symmetrically opened on the mounting plate (5).

6. The waste heat driven air preheater structure according to claim 5, characterized in that: The square rod (15) on the sealing assembly (6) is slidably installed in the square hole opened on the mounting plate (5). The top plate (17) is located above the mounting plate (5), the handle rod (14) is located below the mounting plate (5), the bottom plate (16) is located between the mounting plate (5) and the handle rod (14), and the spring (18) is located between the bottom plate (16) and the mounting plate (5).

7. The waste heat driven air preheater structure according to claim 6, characterized in that: The arc plate (19) on the filter assembly (7) is fixedly installed at the lower end of the two square rods (15), and the arc plate (19) is inserted into the slot (13). The coarse filter plate (20), the secondary filter plate (21) and the fine filter plate (22) are all located inside the air intake pipe (3). The coarse filter plate (20) is located outside the fine filter plate (22), and the secondary filter plate (21) is located between the coarse filter plate (20) and the fine filter plate (22).

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