All-welded heat exchanger convenient to maintain and maintenance method thereof

Abstract

The invention discloses an all-welded heat exchanger convenient to maintain and a maintenance method thereof, and belongs to the technical field of heat exchangers. An all-welded heat exchanger convenient to maintain comprises an installation box used for refrigerant circulation and further comprises a heat exchange pipe fixedly installed in the installation box, a top pipe opening of the heat exchange pipe extends to the position above the installation box, and a bottom pipe opening of the heat exchange pipe extends to the position below the installation box. The two sides of the mounting box are fixedly connected with a liquid inlet pipe and a liquid outlet pipe correspondingly, and the inner diameter of the heat exchange pipe is not smaller than 100 MM; the inner diameter of the heat exchange pipe is set to be not smaller than 100 MM, compared with a traditional heat exchanger pipeline, the diameter of the pipeline is increased, the cleaning and maintaining difficulty is reduced, the increased inner diameter of the pipeline is matched with the conical ring, the pressure of airflow passing through the heat exchange pipe is increased, meanwhile, the contact area of the airflow and the heat exchange pipeline is increased, and the heat exchange efficiency is improved. Therefore, the heat exchange effect of the airflow and the heat exchange medium is improved.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchangers, and in particular to a fully welded heat exchanger which is easy to maintain. Background Art

[0002] A heat exchanger tube group refers to a pipe system used to transfer heat in a heat exchanger. A heat exchanger tube group is usually composed of multiple pipes. The fluid flowing through these pipes can exchange heat in the heat exchanger to achieve the transfer and conversion of thermal energy.

[0003] At present, in order to improve the heat exchange efficiency, the inner diameter of the heat exchange pipe in the heat exchange tube group is generally set to be relatively narrow. When cleaning and maintaining the inside of the heat exchange pipe, the small pipe opening makes the cleaning and maintenance work more difficult, so specific cleaning tools are required for cleaning. After cleaning with specific cleaning tools, due to the small pipe opening, the cleaning staff cannot confirm whether the inside of the pipe is clean. In order to ensure the maintenance effect, a fully welded heat exchanger that is easy to maintain is proposed. Summary of the invention

[0004] The present invention aims to solve the problem in the prior art that the pipeline is narrow and inconvenient to clean and maintain, and proposes a fully welded heat exchanger which is easy to maintain.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A fully welded heat exchanger that is easy to maintain, comprising an installation box for refrigerant circulation, and also comprising: a heat exchange tube fixedly installed inside the installation box, the top pipe opening of the heat exchange tube extending to the top of the installation box, the bottom pipe opening of the heat exchange tube extending to the bottom of the installation box, and the two sides of the installation box are respectively fixedly connected with a liquid inlet pipe and a liquid discharge pipe, wherein the inner diameter of the heat exchange tube is not less than 100MM; the installation tube passes through the center of the heat exchange tube and is coaxial with the heat exchange tube; a conical ring is rotatably installed on the installation tube, wherein the conical ring is composed of a frustum and a truncated cone, and turbine blades are fixedly installed on the frustum and the truncated cone, the outer diameter of the truncated cone is 1MM-3MM away from the inner diameter of the installation tube, and a cavity is opened inside the conical ring; when the external airflow moves upward from the bottom of the heat exchange tube, the airflow passes through the gap between the conical ring and the heat exchange tube, and drives the conical ring to rotate through the turbine blades, and at the same time drives the airflow to diffuse around the installation tube through the frustum and the truncated cone to contact the inner wall of the heat exchange tube.

[0006] As a preferred embodiment of the present invention: the inner diameter of the heat exchange tube is 100MM-200MM, and the outer ring diameter of the installation tube is 20MM-60MM.

[0007] As a preferred embodiment of the present invention: a gas collecting hood is fixedly installed on the top of the installation box by bolts, a mounting cover is provided at the bottom of the installation box, the mounting cover is clamped and sealed with the installation box, a first mounting plate is fixedly installed on the mounting cover, a motor cover is fixedly installed on the bottom of the first mounting plate, and a check plate is fixedly installed on the bottom of the first mounting plate.

[0008] As a preferred embodiment of the present invention: a connecting rod is fixedly installed on the mounting cover, a first water tank is fixedly installed on the connecting rod, the mounting pipe is fixedly installed on the first water tank, and the bottom of the mounting pipe is connected to the first water tank, a drain pipe is fixedly installed on the side wall of the first water tank, one end of the drain pipe extends to the outside of the mounting cover, and the other end of the drain pipe is connected to the first water tank.

[0009] As a preferred embodiment of the present invention: a support rod is fixedly mounted on the top of the installation box, a second water tank is fixedly mounted on the support rod, and the top end of the installation pipe is clamped and sealed with the bottom end of the second water tank.

[0010] As a preferred embodiment of the present invention: a second mounting plate is fixedly installed on the exhaust port of the gas gathering hood, a third mounting plate is fixedly installed in the gas gathering hood, the third mounting plate is arranged below the second mounting plate, the second mounting plate and the third mounting plate are rotatably connected with a mounting shaft, a power turbine is fixedly installed on the mounting shaft, a piston assembly is fixedly installed on the third mounting plate, the driving end of the piston assembly is connected to the mounting shaft, a first insulation tube is fixedly installed on the input end of the piston assembly, a second insulation tube is fixedly installed on the output end of the piston assembly, and the second insulation tube is connected to the top of the second water tank.

[0011] As a preferred embodiment of the present invention: the piston assembly includes a piston cylinder fixedly mounted on a third mounting plate, the output end and input end of the piston cylinder are both provided with a one-way valve, a piston plate is slidably connected in the piston cylinder, a crank is rotatably connected to the piston plate, a crankshaft is fixedly connected to the mounting shaft, and the crankshaft is rotatably connected to the crank.

[0012] As a preferred embodiment of the present invention: it also includes a heat exchange hose, the output end of the heat exchange hose is fixedly connected to the first insulation tube, and the input end of the heat exchange hose is fixedly connected to the drain pipe, wherein the heat exchange hose is spiral and covers the outer wall of the compressor; a brush is fixedly connected to the mounting tube, and the brush is in contact with the inner wall of the heat exchange tube, a scraper is fixedly connected to the top of the conical ring, and the scraper is in contact with the inner wall of the heat exchange tube, a water guide groove is opened on the scraper, and the water guide groove is connected to the cavity, and a drainage hole is opened on the conical surface of the cone, and the drainage hole is connected to the inside of the heat exchange tube.

[0013] As a preferred embodiment of the present invention: a drainage hole is provided on the conical surface of the frustum, the drainage hole is connected to the inside of the heat exchange tube, a water hole connected to the cavity is provided on the mounting tube, and a drainage hole is provided on the conical surface of the frustum.

[0014] A maintenance method for a fully welded heat exchanger that is easy to maintain comprises the following steps: Step 1: Loosen the bolts and remove the gas hood and the second water tank; Step 2: insert a sealing disk whose inner diameter is sealed against the outer wall of the motor cover and whose outer diameter is sealed against the inner diameter of the mounting cover onto the motor cover; Step 3: Drain the cleaning liquid into the installation cover through the pipe at the bottom of the plugging plate; Step 4: Start the motor installed inside the motor cover, and use the motor to drive the fan blades arranged above the motor cover and fixed to the motor output shaft to rotate, so that the cleaning liquid flows; Step 5: The cleaning liquid flowing through the heat exchange tube drives the conical ring to rotate through the turbine blades and cleans the inside of the heat exchange tube; Step 6: Remove the installation box from the installation cover and check whether the inside of the heat exchange tube is clean.

[0015] Compared with the prior art, the present invention provides a fully welded heat exchanger that is easy to maintain and has the following beneficial effects: 1. The fully welded heat exchanger, which is easy to maintain, sets the inner diameter of the heat exchange tube to no less than 100MM. Compared with the traditional heat exchanger pipe, the pipe diameter becomes larger, which reduces the difficulty of cleaning and maintenance. The larger pipe inner diameter cooperates with the tapered ring to increase the pressure of the airflow when passing through the heat exchange tube, and at the same time increase the contact area between the airflow and the heat exchange pipe, thereby improving the heat exchange effect between the airflow and the heat exchange medium; 2. This fully welded heat exchanger, which is easy to maintain, absorbs the heat generated by the air compressor during operation through the heat exchange hose and increases the temperature of the condensed water, preventing the condensed water from freezing on the inner wall of the heat exchange pipe. There is no need to thaw the air conditioning system, thereby improving the stability of continuous heating. At the same time, when the condensed water is thrown out of the cavity, it absorbs the dust in the air flow entering the heat exchange pipe, improving the cleanliness of the heat exchange air flow. At the same time, the brush scrapes the inside of the heat exchange pipe to prevent the lower inner wall of the heat exchange pipe from freezing. 3. The fully welded heat exchanger, which is easy to maintain, connects the first insulation pipe to the condensate drain pipe and closes the valve on the drain pipe. When the condensate accumulates enough, the excess condensate enters the cavity through the drain hole and then falls onto the inner wall of the heat exchange pipe through the drain hole, thereby accelerating the cooling of the heat exchange medium inside the installation box and improving the cooling effect of the overall air-conditioning system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1A schematic diagram of the three-dimensional structure of a fully welded heat exchanger that is easy to maintain proposed by the present invention; Figure 2 A schematic diagram of the structure of the first water tank of a fully welded heat exchanger that is easy to maintain proposed by the present invention; Figure 3 The main cross-section of a fully welded heat exchanger that is easy to maintain proposed by the present invention Figure 1 ; Figure 4 A schematic diagram of the heat exchange tube structure of a fully welded heat exchanger that is easy to maintain proposed by the present invention; Figure 5 A schematic diagram of the structure of a fully welded heat exchanger conical ring that is easy to maintain proposed by the present invention Figure 1 ; Figure 6 A three-dimensional cross-sectional view of a fully welded heat exchanger that is easy to maintain proposed by the present invention; Figure 7 A schematic diagram of a fully welded heat exchanger mounting cover for easy maintenance proposed by the present invention Figure 2 ; Figure 8 The main cross-section of a fully welded heat exchanger that is easy to maintain proposed by the present invention Figure 2 ; Fig. 9 A fully welded heat exchanger that is easy to maintain proposed by the present invention Figure 8 Schematic diagram of the structure of part A; Fig.10 A schematic diagram of the structure of a fully welded heat exchanger conical ring that is easy to maintain proposed by the present invention Figure 2 .

[0017] In the figure: 1. installation box; 2. heat exchange tube; 3. installation tube; 4. conical ring; 5. cavity; 6. turbine blade; 7. drainage hole; 8. scraper; 9. water guide groove; 10. water hole; 11. first water tank; 12. connecting rod; 13. brush; 14. liquid inlet pipe; 15. liquid discharge pipe; 16. drainage pipe; 17. heat exchange hose; 18. installation cover; 19. first installation plate; 20. motor cover; 21. gas collection cover; 22. support rod; 23. second water tank; 24. second installation plate; 25. third installation plate; 26. installation shaft; 27. crankshaft; 28. power turbine; 29. ​​piston cylinder; 30. first insulation tube; 31. second insulation tube; 32. crank; 33. piston plate; 34. check plate. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] Example: Refer to Figure 1-Figure 10 A fully welded heat exchanger that is easy to maintain, including an installation box 1 for circulating refrigerant, and also includes: a heat exchange tube 2 fixedly installed inside the installation box 1, the top pipe opening of the heat exchange tube 2 extends to the top of the installation box 1, and the bottom pipe opening of the heat exchange tube 2 extends to the bottom of the installation box 1, and the two sides of the installation box 1 are respectively fixedly connected with a liquid inlet pipe 14 and a liquid discharge pipe 15, wherein the inner diameter of the heat exchange tube 2 is not less than 100MM; an installation pipe 3, passing through the center of the heat exchange tube 2 and being coaxial with the heat exchange tube 2; a conical ring 4, rotatingly installed It is installed on the mounting tube 3, wherein the conical ring 4 is composed of a frustum and a truncated cone, turbine blades 6 are fixedly mounted on the frustum and the truncated cone, the outer diameter of the truncated cone is 1MM-3MM away from the inner diameter of the mounting tube 3, and a cavity 5 is opened inside the conical ring 4; when the external airflow moves upward from the bottom of the heat exchange tube 2, the airflow passes through the gap between the conical ring 4 and the heat exchange tube 2, and drives the conical ring 4 to rotate through the turbine blades 6, and at the same time drives the airflow to diffuse to the surroundings of the mounting tube 3 through the frustum and the truncated cone to contact the inner wall of the heat exchange tube 2.

[0021] When in use, the medium used for heat exchange with the airflow is discharged into the installation box 1 through the liquid inlet pipe 14, is diverted inside the installation box 1 and fills the installation box 1, and then is discharged through the discharge pipe 15 (in order to facilitate the heat exchange medium to fill the installation box 1, a pressure control valve is provided on the pipe of the discharge pipe 15). In the process of the heat exchange medium flowing in the installation box 1, the air flow is blown into the heat exchange tube 2 through the air supply component in the air-conditioning system. In the process of the air flow passing through the heat exchange tube 2, it diffuses to the outside of the conical ring 4 through the conical ring 4. At the same time, in the process of the air flow passing through the heat exchange tube 2, the turbine blade 6 is driven to rotate, and the turbine blade 6 drives the conical ring 4 to rotate.

[0022] In summary, by setting the inner diameter of the heat exchange tube 2 to be no less than 100MM, compared with the traditional heat exchanger pipe, the pipe diameter becomes larger, which reduces the difficulty of cleaning and maintenance, and the enlarged pipe inner diameter cooperates with the tapered ring 4 to increase the pressure of the airflow when passing through the heat exchange tube 2, while increasing the contact surface area between the airflow and the heat exchange tube 2, thereby improving the heat exchange effect between the airflow and the heat exchange medium.

[0023] Reference Figure 4Among them, the inner diameter of the heat exchange tube 2 is 100MM-200MM, and the outer ring diameter of the mounting tube 3 is 20MM-60MM.

[0024] Reference Figure 6 A gas collecting hood 21 is fixedly installed on the top of the mounting box 1 by bolts, and a mounting hood 18 is provided at the bottom of the mounting box 1. The mounting hood 18 is clamped and sealed with the mounting box 1, and a first mounting plate 19 is fixedly installed on the mounting hood 18. A motor hood 20 is fixedly installed on the bottom of the first mounting plate 19, and a check plate 34 is fixedly installed on the bottom of the first mounting plate 19.

[0025] The driving part (motor) of the delivery and distribution component in the air-conditioning system can be installed in the motor cover 20, and the fan blades are arranged above the first mounting plate 19. During maintenance and cleaning, the bottom of the mounting cover 18 is blocked by using a dividing plate, and the inner ring of the blocking plate is sealed with the outer wall of the motor cover 20, and the outer ring of the blocking plate is sealed with the inner wall of the mounting cover 18, and a pipe connected to the top is arranged at the bottom of the blocking plate. During maintenance and cleaning, cleaning liquid is discharged to the top of the blocking plate through the pipe at the bottom, and then the motor in the motor cover 20 is started to drive the fan blades located at the top of the first mounting plate 19 to rotate. During this process, the fan blades stir the cleaning liquid to make the cleaning liquid flow, thereby improving the cleaning effect.

[0026] Reference Figure 3 , Figure 8 and Fig. 9A connecting rod 12 is fixedly installed on the mounting cover 18, a first water tank 11 is fixedly installed on the connecting rod 12, a mounting pipe 3 is fixedly installed on the first water tank 11, and the bottom of the mounting pipe 3 is communicated with the first water tank 11, a drain pipe 16 is fixedly installed on the side wall of the first water tank 11, one end of the drain pipe 16 extends to the outside of the mounting cover 18, and the other end of the drain pipe 16 is communicated with the first water tank 11, a support rod 22 is fixedly installed on the top of the mounting box 1, a second water tank 23 is fixedly installed on the support rod 22, the top of the mounting pipe 3 is clamped and sealed with the bottom of the second water tank 23, a second mounting plate 24 is fixedly installed on the exhaust port of the gas gathering cover 21, a third mounting plate 25 is fixedly installed in the gas gathering cover 21, and the third mounting plate 25 is arranged below the second mounting plate 24, the third The second mounting plate 24 and the third mounting plate 25 are rotatably connected with a mounting shaft 26, and a power turbine 28 is fixedly mounted on the mounting shaft 26. A piston assembly is fixedly mounted on the third mounting plate 25, and a driving end of the piston assembly is connected to the mounting shaft 26. A first insulation tube 30 is fixedly mounted on the input end of the piston assembly, and a second insulation tube 31 is fixedly mounted on the output end of the piston assembly. The second insulation tube 31 is connected to the top of the second water tank 23. The piston assembly includes a piston cylinder 29 fixedly mounted on the third mounting plate 25, and both the output and input ends of the piston cylinder 29 are provided with a one-way valve. A piston plate 33 is slidably connected in the piston cylinder 29, and a crank 32 is rotatably connected to the piston plate 33. A crankshaft 27 is fixedly connected to the mounting shaft 26, and the crankshaft 27 is rotatably connected to the crank 32.

[0027] When the airflow after heat exchange is discharged from the top of the gas collecting hood 21, the airflow drives the power turbine 28 to rotate, the power turbine 28 drives the installation shaft 26 to rotate, the installation shaft 26 drives the crankshaft 27 to rotate, and the crankshaft 27 makes the piston plate 33 reciprocate in the piston cylinder 29 through the crank 32. Under the action of the two sets of one-way valves, positive pressure and negative pressure are reciprocated inside the piston cylinder 29. The negative pressure absorbs the fluid medium through the first insulation pipe 30, and then discharged into the second water tank 23, and discharged into the first water tank 11 through multiple installation pipes 3.

[0028] When the heat exchanger is used as an evaporator in cold areas, the evaporator also includes a heat exchange hose 17 inside, the output end of the heat exchange hose 17 is fixedly connected to the first insulation tube 30, and the input end of the heat exchange hose 17 is fixedly connected to the drain pipe 16, wherein the heat exchange hose 17 is spiral and covers the outer wall of the compressor, a brush 13 is fixedly connected to the mounting tube 3, the brush 13 is in contact with the inner wall of the heat exchange tube 2, a scraper 8 is fixedly connected to the top of the conical ring 4, the scraper 8 is in contact with the inner wall of the heat exchange tube 2, a water guide groove 9 is opened on the scraper 8, the water guide groove 9 is connected to the cavity 5, a drainage hole 7 is opened on the conical surface of the cone, and the drainage hole 7 is connected to the inside of the heat exchange tube 2.

[0029] During use, the heat exchange hose 17 absorbs the heat generated by the compressor in the air-conditioning system when it is working, and then circulates under the action of the piston assembly, passes through the mounting tube 3, and heats the mounting tube 3 and the tapered ring 4. At the same time, the tapered ring 4 rotates, driving the brush 13 and the scraper 8 to rotate. During this process, the brush 13 located below scrapes the inner wall of the heat exchange tube 2, and the scraper 8 rotates to scrape the upper inner wall of the heat exchange tube 2. When scraping, the condensed water condensed on the inner wall of the heat exchange tube 2 is transferred to the cavity 5 through the water guide groove 9. The condensed water exchanges heat with the medium that absorbs the working heat of the compressor, thereby increasing the temperature of the condensed water and preventing the condensed water from freezing on the inner wall of the heat exchange pipe 2. The heated condensed water is sprayed out through the drain hole 7 and thrown toward the lower inner wall of the heat exchange tube 2. In the process of the condensed water being thrown out, the dust in the airflow entering the heat exchange tube 2 is absorbed, thereby improving the cleanliness of the heat exchange airflow. At the same time, the brush 13 scrapes the inside of the heat exchange tube 2 to prevent the lower inner wall of the heat exchange tube 2 from freezing.

[0030] Reference Figure 1-Figure 3 and Figure 9-10 When the heat exchanger is used as a condenser and is used for cooling for a long time, a drainage hole 7 is opened on the conical surface of the cone, and the drainage hole 7 is connected to the inside of the heat exchange tube 2. A water hole 10 connected to the cavity 5 is opened on the installation tube 3. The drainage hole 7 is opened on the conical surface of the cone, and the first insulation tube 30 is connected to the water pipe of the condensed water, and the valve on the drainage pipe 16 is closed. When the condensed water accumulates enough, the excess condensed water enters the cavity 5 through the drainage hole 7, and then is discharged to the inner wall of the heat exchange tube 2 through the drainage hole 7, thereby accelerating the cooling of the heat exchange medium inside the installation box 1 and improving the refrigeration effect of the overall air-conditioning system.

[0031] A maintenance method for a fully welded heat exchanger that is easy to maintain comprises the following steps: Step 1: Loosen the bolts and remove the gas collecting cover 21 and the second water tank 23; Step 2: Insert a sealing disk whose inner diameter is sealed to the outer wall of the motor cover 20 and whose outer diameter is sealed to the inner diameter of the mounting cover 18 onto the motor cover 20; Step 3: Discharge the cleaning liquid into the installation cover 18 through the pipe at the bottom of the plugging plate; Step 4: Start the motor installed inside the motor cover 20, and use the motor to drive the fan blades arranged above the motor cover 20 and fixed to the motor output shaft to rotate, so that the cleaning liquid flows; Step 5: The cleaning liquid flowing through the heat exchange tube 2 drives the conical ring 4 to rotate through the turbine blades 6 and cleans the inside of the heat exchange tube 2; Step 6: Remove the installation box 1 from the installation cover 18 and check whether the inside of the heat exchange tube 2 is clean. The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fully welded heat exchanger that is easy to maintain, comprising a mounting box (1) for circulating a refrigerant, characterized in that: Also includes: A heat exchange tube (2) is fixedly installed inside the installation box (1), the top pipe opening of the heat exchange tube (2) extends to the top of the installation box (1), and the bottom pipe opening of the heat exchange tube (2) extends to the bottom of the installation box (1), and the two sides of the installation box (1) are respectively fixedly connected with a liquid inlet pipe (14) and a liquid discharge pipe (15), wherein the inner diameter of the heat exchange tube (2) is not less than 100MM; A mounting tube (3) passes through the center of the heat exchange tube (2) and is coaxial with the heat exchange tube (2); A conical ring (4) is rotatably mounted on the mounting tube (3), wherein the conical ring (4) is composed of a frustum and a truncated cone, turbine blades (6) are fixedly mounted on both the frustum and the truncated cone, the distance between the outer diameter of the truncated cone and the inner diameter of the mounting tube (3) is 1 mm to 3 mm, and a cavity (5) is provided inside the conical ring (4); When the external airflow moves upward from the bottom of the heat exchange tube (2), the airflow passes through the gap between the conical ring (4) and the heat exchange tube (2), and drives the conical ring (4) to rotate through the turbine blades (6). At the same time, the airflow is driven to diffuse around the installation tube (3) through the cone and the truncated cone to contact the inner wall of the heat exchange tube (2).

2. The all-welded heat exchanger easy to maintain according to claim 1, characterized in that: The inner diameter of the heat exchange tube (2) is 100MM-200MM, and the outer ring diameter of the mounting tube (3) is 20MM-60MM.

3. The all-welded heat exchanger easy to maintain according to claim 1, characterized in that: A gas collecting hood (21) is fixedly mounted on the top of the mounting box (1) by means of bolts, a mounting hood (18) is arranged on the bottom of the mounting box (1), the mounting hood (18) is snap-fitted and sealed with the mounting box (1), a first mounting plate (19) is fixedly mounted on the mounting hood (18), a motor hood (20) is fixedly mounted on the bottom of the first mounting plate (19), and a check plate (34) is fixedly mounted on the bottom of the first mounting plate (19).

4. The all-welded heat exchanger easy to maintain according to claim 3, characterized in that: A connecting rod (12) is fixedly mounted on the mounting cover (18), a first water tank (11) is fixedly mounted on the connecting rod (12), the mounting pipe (3) is fixedly mounted on the first water tank (11), and the bottom of the mounting pipe (3) is in communication with the first water tank (11), a drain pipe (16) is fixedly mounted on the side wall of the first water tank (11), one end of the drain pipe (16) extends to the outside of the mounting cover (18), and the other end of the drain pipe (16) is in communication with the first water tank (11).

5. The all-welded heat exchanger easy to maintain according to claim 4, characterized in that: A support rod (22) is fixedly mounted on the top of the installation box (1), a second water tank (23) is fixedly mounted on the support rod (22), and the top end of the installation pipe (3) is clamped and sealed with the bottom end of the second water tank (23).

6. The all-welded heat exchanger easy to maintain according to claim 5, characterized in that: A second mounting plate (24) is fixedly mounted on the exhaust port of the gas gathering hood (21); a third mounting plate (25) is fixedly mounted inside the gas gathering hood (21); the third mounting plate (25) is arranged below the second mounting plate (24); a mounting shaft (26) is rotatably connected between the second mounting plate (24) and the third mounting plate (25); a power turbine (28) is fixedly mounted on the mounting shaft (26); a piston assembly is fixedly mounted on the third mounting plate (25); a driving end of the piston assembly is connected to the mounting shaft (26); a first insulation pipe (30) is fixedly mounted on the input end of the piston assembly; a second insulation pipe (31) is fixedly mounted on the output end of the piston assembly; and the second insulation pipe (31) is connected to the top of the second water tank (23).

7. The all-welded heat exchanger easy to maintain according to claim 6, characterized in that: The piston assembly comprises a piston cylinder (29) fixedly mounted on a third mounting plate (25), the output end and the input end of the piston cylinder (29) being both provided with a one-way valve, a piston plate (33) being slidably connected inside the piston cylinder (29), a crank (32) being rotatably connected to the piston plate (33), a crankshaft (27) being fixedly connected to the mounting shaft (26), and the crankshaft (27) being rotatably connected to the crank (32).

8. The all-welded heat exchanger easy to maintain according to claim 6, characterized in that: It also comprises a heat exchange hose (17), the output end of the heat exchange hose (17) being fixedly connected to the first insulation pipe (30), and the input end of the heat exchange hose (17) being fixedly connected to the drain pipe (16), wherein the heat exchange hose (17) is spiral-shaped and covers the outer wall of the compressor; A brush (13) is fixedly connected to the mounting tube (3), and the brush (13) is in contact with the inner wall of the heat exchange tube (2). A scraper (8) is fixedly connected to the top of the conical ring (4), and the scraper (8) is in contact with the inner wall of the heat exchange tube (2). A water guide groove (9) is provided on the scraper (8), and the water guide groove (9) is connected to the cavity (5). A drainage hole (7) is provided on the conical surface of the cone, and the drainage hole (7) is connected to the inside of the heat exchange tube (2).

9. The all-welded heat exchanger easy to maintain according to claim 6, characterized in that: A drainage hole (7) is provided on the conical surface of the cone, the drainage hole (7) is connected to the interior of the heat exchange tube (2), a water hole (10) connected to the cavity (5) is provided on the mounting tube (3), and a drainage hole (7) is provided on the conical surface of the cone.

10. A maintenance method for a fully welded heat exchanger that is easy to maintain, comprising the fully welded heat exchanger that is easy to maintain according to any one of claims 8 or 9, characterized in that: The following steps are involved: Step 1: Loosen the bolts and remove the gas collecting cover (21) and the second water tank (23); Step 2: inserting a sealing disk whose inner diameter is sealed against the outer wall of the motor cover (20) and whose outer diameter is sealed against the inner diameter of the mounting cover (18) onto the motor cover (20); Step 3: Discharge the cleaning liquid into the interior of the mounting cover (18) through the pipe at the bottom of the plugging plate; Step 4: starting the motor installed inside the motor cover (20), and using the motor to drive the fan blades arranged above the motor cover (20) and fixed to the motor output shaft to rotate, so that the cleaning liquid flows; Step 5: The cleaning liquid flowing through the heat exchange tube (2) drives the conical ring (4) to rotate through the turbine blades (6) and cleans the inside of the heat exchange tube (2); Step 6: Remove the installation box (1) from the installation cover (18) and check whether the inside of the heat exchange tube (2) is clean.

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