CN115931236A

CN115931236A - Heat exchanger leak source detection equipment of constant temperature and humidity air conditioner

Info

Publication number: CN115931236A
Application number: CN202310247294.7A
Authority: CN
Inventors: 彭佑钢; 金秋丽
Original assignee: Jiangsu Keli Air Conditioning Co ltd
Current assignee: Jiangsu Keli Air Conditioning Co ltd
Priority date: 2023-03-15
Filing date: 2023-03-15
Publication date: 2023-04-07
Anticipated expiration: 2043-03-15
Also published as: CN115931236B

Abstract

The invention belongs to the technical field of detection equipment, in particular to a leakage point detection equipment for a heat exchanger of a constant temperature and humidity air conditioner, which comprises an underframe; the chassis is rotatably connected with a rotating plate, and the rotating plate is connected with a clamp assembly for fixing the heat exchanger; the underframe is respectively connected with a high-pressure water tank and a gas tank, and the gas tank is connected with the gas inlet end of the heat exchanger; be connected with a pair of sprinkling mechanism on the chassis, sprinkling mechanism is used for spraying high pressure water tank's liquid on the heat exchanger, and sprinkling mechanism includes: the surface of the vertical plate is connected with a transverse plate which moves back and forth, the transverse plate is connected with a lifting frame which moves back and forth up and down, and the lifting frame is provided with a sprinkler head; according to the invention, the spraying components are arranged on the two sides of the heat exchanger, the spraying components spray the viscous liquid in the water tank to be attached to the surface of the heat exchanger, then the gas is introduced into the heat exchanger through the gas pump, and bubbles appear when the gas passes through a leakage point, so that the leakage point position of the heat exchanger is conveniently and quickly detected.

Description

Heat exchanger leak source check out test set of constant temperature and humidity air conditioner

Technical Field

The invention relates to the technical field of detection equipment, in particular to heat exchanger leakage point detection equipment of a constant-temperature and constant-humidity air conditioner.

Background

The constant temperature and humidity air conditioner is to heat and wet the air to be delivered into the room by a power source such as a main machine and steam which is matched with an air conditioning unit with the heat and humidity treatment function, thereby achieving the purpose of indoor air conditioning. The main machine has various cold accumulation modes, wherein a lithium bromide refrigerator realizes refrigeration by absorbing and releasing water vapor by lithium bromide aqueous solution at different temperatures, the circulation realizes refrigeration by using an external heat source, common heat sources are steam, hot water, gas, fuel oil and the like, a plurality of heat exchange tubes are arranged in a heat exchanger of the lithium bromide refrigerator set, the heat exchange tubes in the heat exchanger are often damaged due to the mass of the heat exchange tubes, liquid impact or solution corrosion and the like in actual use, leakage points are caused on tube bodies, the refrigeration effect is reduced, and the lithium bromide solution can be crystallized to block a pump body in serious cases.

The existing maintenance method is characterized in that nitrogen is injected into a machine body, one end of a heat exchange tube is plugged through a plug, soapy water is coated at the other end of the heat exchange tube, a soapy water film is formed, the quality of the heat exchange tube is judged from the expansion state of the soapy water film, the two ends of the damaged heat exchange tube are plugged through plugs, if the damaged heat exchange tube is more in responsibility, the whole heat exchange tube needs to be replaced, the existing maintenance method has the problems that the accuracy of the existing detection method is poor due to the fact that the number of the heat exchange tubes is large, the quality of hundreds of heat exchange tubes needs to be detected generally, manual plug plugging and visual observation are conducted, human errors easily occur, and meanwhile the specific position of a leakage point cannot be judged.

Disclosure of Invention

Aiming at the defects of the prior art, the invention sprays liquid on the surface of the heat exchanger through the spraying mechanism, then the gas is introduced into the heat exchanger through the gas tank, the gas sprays bubbles through the leakage point, and the electric leakage position of the heat exchanger is quickly found out, so that the problems in the background art are solved.

In order to achieve the technical purpose, the specific technical scheme of the invention is that the heat exchanger leakage point detection equipment of the constant temperature and humidity air conditioner comprises an underframe; the chassis is rotatably connected with a rotating plate, and the rotating plate is connected with a clamp assembly for fixing the heat exchanger; the underframe is respectively connected with a high-pressure water tank and a gas tank, and the gas tank is connected with the gas inlet end of the heat exchanger; be connected with a pair of sprinkler mechanism on the chassis, sprinkler mechanism is used for spraying high pressure water tank's liquid on the heat exchanger, sprinkler mechanism includes: the vertical plate, the vertical plate surface is connected with the diaphragm of back and forth movement, be connected with the crane of up-and-down back and forth movement on the diaphragm, install the sprinkler head on the crane.

As a preferred technical scheme of the invention, the vertical plate is provided with limiting wheels which are respectively arranged at the upper side and the lower side of the transverse plate.

As a preferred technical solution of the present invention, a driving motor is installed on the vertical plate, a rotating wheel is connected to the driving motor, a first connecting rod is connected to the rotating wheel, a moving rod is connected to one end of the first connecting rod, a first gear is connected to one end of the moving rod, and a first rack engaged with the first gear is fixedly connected to the transverse plate.

As a preferred technical solution of the present invention, a second rack engaged with the first gear is fixedly connected to the vertical plate, and the first rack and the second rack are respectively disposed on two sides of the first gear.

As a preferable technical scheme of the invention, a sliding hole is formed in the moving rod, and a fixing block which is in sliding connection with the sliding hole is fixedly connected to the vertical plate.

As a preferable technical scheme of the invention, a first rotating disc is fixedly connected to the first gear, a second connecting rod is connected to the first rotating disc, and one end of the second connecting rod is connected with the lifting frame.

As a preferred technical scheme of the present invention, one end of the rotating plate is connected with a second gear, the chassis is connected with a sliding block in a sliding manner, and the sliding block is fixedly connected with a third rack engaged with the second gear; a rotating rod is connected to the underframe, and a second rotating disc is connected to one end of the rotating rod; and a third connecting rod is connected to the second rotating disc, and one end of the third connecting rod is rotatably connected with the sliding block.

According to a preferred technical scheme of the invention, the vertical plate is connected with a roller which is in contact with the rotating wheel, the roller rotating shaft is connected with a first helical gear, one end of the rotating rod is connected with a second helical gear which is meshed with the first helical gear, the rotating wheel is driven to rotate when rotating, the roller is driven to rotate by the meshing of the first helical gear and the second helical gear when rotating, the rotating rod drives the second rotating disc to rotate, and further drives the third rack to move back and forth, and further drives the rotating plate to move left and right, so that the spraying head can spray the downward surface of the heat exchanger.

As a preferred technical scheme of the invention, the clamp assembly comprises a fixing frame and a clamping plate, wherein a rod body is fixedly connected to the clamping plate, a stop block is arranged at the lower end of the rod body, a spring is connected to the rod body, and the spring is arranged between the stop block and the rotating plate.

The beneficial effects of the invention are as follows:

1. according to the invention, the spraying components are arranged on two sides of the heat exchanger, the spraying components spray the viscous liquid in the water tank to be attached to the surface of the heat exchanger, then the gas is introduced into the heat exchanger through the gas pump, and bubbles appear when the gas passes through a leakage point, so that the position of the leakage point of the heat exchanger can be conveniently and rapidly detected.

2. When the spraying mechanism sprays on the heat exchanger, the spraying head is driven to reciprocate up and down and left and right, the heat exchanger shakes left and right on the rotating plate, and the spraying head can spray on the downward surface of the heat exchanger, so that the spraying component can uniformly and comprehensively spray on the heat exchanger, and the missing of a leakage point is avoided.

Drawings

Fig. 1 is a schematic top view of a leak detection device for a heat exchanger of a constant temperature and humidity air conditioner according to the present invention;

FIG. 2 is a schematic structural diagram of a leak detection device for a heat exchanger of a constant temperature and humidity air conditioner according to the present invention;

FIG. 3 is a schematic view of a spraying mechanism according to the present invention;

FIG. 4 is a schematic rear view of a spray assembly according to the present invention;

FIG. 5 is an enlarged view of a portion A of FIG. 3;

FIG. 6 is a schematic view of the construction of the base frame;

fig. 7 is a partial enlarged view of fig. 6 at B.

In the figure: 1. a chassis; 2. a spraying mechanism; 21. a vertical plate; 22. a transverse plate; 23. a lifting frame; 24. a sprinkler head; 25. a limiting wheel; 26. a drive motor; 27. a rotating wheel; 28. a first rack; 29. a first gear; 210. a first rotary disk; 211. a second connecting rod; 212. a travel bar; 213. a slide hole; 214. a fixed block; 215. a second rack; 216. a first connecting rod; 217. a roller; 218. a first helical gear; 3. a rotating plate; 31. a second gear; 32. a spring; 33. a fixed mount; 34. a splint; 35. a rod body; 4. a gas tank; 5. a high pressure water tank; 6. a slider; 7. a third rack; 8. rotating the rod; 9. a second helical gear; 10. a second rotating disk; 11. a third connecting rod; 12. a heat exchanger.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example (b): as shown in fig. 1-7, the invention relates to a heat exchanger leak source detection device of a constant temperature and humidity air conditioner, which comprises an underframe 1; a rotating plate 3 is rotatably connected to the base frame 1, a pair of fixing seats are connected to two ends of the rotating plate 3, the fixing seats are fixed to the base frame 1, and a clamp assembly for fixing the heat exchanger 12 is connected to the rotating plate 3; the chassis 1 is respectively connected with a high-pressure water tank 5 and an air tank 4, the air tank 4 is connected with an air pump, the air tank 4 is connected with an air inlet end of a heat exchanger 12, one end of an outlet of the heat exchanger is closed, liquid with certain viscosity, such as grease liquid and soap foam water, is filled in the high-pressure water tank 5 and can be attached to the surface of the heat exchanger, when air is discharged from a leakage point of the heat exchanger, the form of the liquid at the leakage point position is changed, and if bubbles occur, sounds are produced, and the leakage point position can be obviously observed; the underframe 1 is connected with a pair of spraying mechanisms 2, the spraying mechanisms 2 are used for spraying the viscous liquid of the high-pressure water tank 5 on the heat exchanger 12, and the spraying mechanisms 2 are arranged on two sides of the heat exchanger and respectively spray the two sides of the heat exchanger 12.

As shown in fig. 3-5, the spraying mechanism 2 comprises a vertical plate 21, the vertical plate 21 is installed on the bottom frame 1, the surface of the vertical plate 21 is connected with a transverse plate 22 which moves back and forth left and right, the vertical plate 21 is provided with a limiting wheel 25, the limiting wheels 25 are four, the limiting wheels 25 are respectively arranged on the upper side and the lower side of the transverse plate 22, limit the transverse plate 22 and ensure the stability of the transverse plate 22 when moving, the transverse plate 22 is connected with a lifting frame 23 which moves back and forth up and down, the lifting frame 23 is in a U-shaped structure, the transverse plate 22 is provided with a sliding chute which is in sliding fit with the lifting frame 23, the lifting frame 23 is provided with a spraying head 24, the high-pressure water tank 5 is connected with the spraying head 24 through a water pipe, the plurality of spraying heads 24 are respectively arranged at the two ends of the lifting frame 23, and ensure that the two ends of the heat exchanger are sprayed; and the surface of the heat exchanger can be uniformly sprayed; the back surface of the vertical plate 21 is provided with the driving motor 26, the driving motor 26 is connected with the rotating wheel 27, the rotating wheel 27 is connected with the first connecting rod 216 in a rotating mode, one end of the first connecting rod 216 is connected with the moving rod 212, the moving rod 212 can move linearly left and right, the moving rod 212 is provided with the sliding hole 213, the sliding hole 213 is a rectangular hole, the vertical plate 21 is fixedly connected with a fixed block 214 in sliding connection with the sliding hole 213, the fixed block 214 is a rectangular block, the moving rod 212 is guaranteed to be stable at a certain time, one end of the moving rod 212 is connected with the first gear 29 in a rotating mode, the transverse plate 22 is fixedly connected with a first rack 28 meshed with the first gear 29, the vertical plate 21 is fixedly connected with a second rack 215 meshed with the first gear 29, the first rack 28 and the second rack 215 are respectively arranged on two sides of the first gear 29, when the rotating wheel 27 rotates, the rotating wheel 27 drives the moving rod 212 to move, the first gear 29 is further driven, the transverse plate 22 is driven to move in the moving process, and the range of the spraying head is enlarged.

Preferably, a first rotating disc 210 is fixedly connected to a rotating shaft of the first gear 29, a second connecting rod 211 is connected to the first rotating disc 210, one end of the second connecting rod 211 is connected to the lifting frame 23, the first gear 29 drives the first rotating disc 210 to rotate when rotating, and the lifting frame 23 is driven to move up and down when the first rotating disc 210 rotates, so that the spraying head 24 can spray the heat exchanger 12 in place in the vertical direction.

As shown in fig. 6, one end of the rotating plate 3 is connected with a second gear 31, the second gear 31 drives the rotating plate 3 to rotate when rotating, the chassis 1 is connected with a sliding block 6 in a sliding manner, the chassis 1 is provided with a sliding groove in sliding fit with the sliding block 6, and the sliding block 6 is fixedly connected with a third rack 7 engaged with the second gear 31; a rotating rod 8 is connected to the underframe 1, the rotating rod 8 is connected to the underframe 1 through a shaft seat, and one end of the rotating rod 8 is connected with a second rotating disc 10; the second rotary disk 10 is rotatably connected with a third connecting rod 11, one end of the third connecting rod 11 is rotatably connected with the sliding block 6, a vertical plate 21 is connected with a roller 217 which is in contact with a rotary wheel 27, the rotary wheel 27 drives the roller 217 to rotate when rotating, a first helical gear 218 is connected to a roller 217 rotating shaft, one end of the rotary rod 8 is connected with a second helical gear 9 which is meshed with the first helical gear 218, a driving motor 26 drives the rotary rod 8 to rotate when driving the sprinkler head 24 to do reciprocating motion up and down, the rotary rod 8 drives a third rack 7 to do reciprocating motion when rotating, the third rack 7 is meshed with a second gear 31, so that the rotary plate 3 is driven to swing left and right, the heat exchanger 12 is inclined at a certain angle, the downward surface of the heat exchanger 12 cannot be sprayed by viscous liquid, and the spraying uniformity of the heat exchanger 12 is ensured.

As shown in fig. 7, the fixture assembly includes a fixing frame 33 and a clamping plate 34, the fixing frame 33 is an inverted L-shaped structure, the fixing frame 33 is fixed on the rotating plate 3, the clamping plate 34 is disposed above the fixing frame 33, a rod 35 is fixedly connected to the clamping plate 34, the rod 35 penetrates through the fixing frame 33 and the rotating plate 3, a stopper is disposed at a lower end of the rod 35, a spring 32 is disposed between the stopper and the rotating plate 3, a lower end of the heat exchanger 12 is clamped between the fixing frame 33 and the clamping plate 34, and a sufficient distance is maintained between the lower end of the heat exchanger 12 and the rotating plate 3, so that the sprinkler 24 can spray the lowest surface of the heat exchanger.

The working principle is as follows: when the invention is used, the heat exchanger 12 is arranged on the rotating plate 3, the gas tank 4 is connected with one gas inlet end of the heat exchanger 12, one gas outlet end of the heat exchanger 12 is blocked, the driving motor 26 is started, the driving motor 26 drives the rotating wheel 27 to rotate, the rotating wheel 27 drives the first gear 29 to move, the first gear 29 drives the transverse plate 22 to move when moving, and the first gear 29 rotates to autorotate, the transverse plate 22 is further driven to move when the first gear 29 rotates, the moving stroke of the transverse plate 22 is increased, meanwhile, the first gear 29 drives the first rotating disc 210 to rotate when rotating, the first rotating disc 210 rotates to drive the lifting frame 23 to move up and down, so that the spraying head 24 can reciprocate up and down when reciprocating left and right, the spraying area of the spraying head 24 is increased, the spraying comprehensiveness to the heat exchanger 12 is ensured, meanwhile, the driving motor 26 drives the rotating rod 8 to rotate through the roller 217, the rotating disc 8 drives the third rack 7 to reciprocate when rotating rod 7, the gas outlet end of the rotating plate 3 is driven to rotate, so that the spraying head 24 can spray the viscous liquid on the surface of the heat exchanger 12, the gas can pass through the gas inlet leak point of the gas tank 12, and the gas can be quickly found at a leak at a time point.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat exchanger leak source detection device of a constant temperature and humidity air conditioner is characterized by comprising an underframe (1);

the chassis (1) is rotatably connected with a rotating plate (3), and the rotating plate (3) is connected with a clamp assembly for fixing the heat exchanger (12);

the chassis (1) is respectively connected with a high-pressure water tank (5) and a gas tank (4), and the gas tank (4) is connected with the gas inlet end of the heat exchanger (12);

be connected with a pair of sprinkling mechanism (2) on chassis (1), sprinkling mechanism (2) are used for spraying high pressure water tank (5) liquid on heat exchanger (12), sprinkling mechanism (2) include:

riser (21), riser (21) surface connection has reciprocating motion's diaphragm (22), be connected with up-and-down reciprocating motion's crane (23) on diaphragm (22), install sprinkler head (24) on crane (23).

2. The equipment for detecting the leak point of the heat exchanger of the constant temperature and humidity air conditioner as claimed in claim 1, wherein the vertical plate (21) is provided with a limiting wheel (25), and the limiting wheel (25) is respectively arranged at the upper side and the lower side of the transverse plate (22).

3. The device for detecting the leak source of the heat exchanger of the constant temperature and humidity air conditioner according to claim 2, wherein a driving motor (26) is installed on the vertical plate (21), a rotating wheel (27) is connected to the driving motor (26), a first connecting rod (216) is connected to the rotating wheel (27), a moving rod (212) is connected to one end of the first connecting rod (216), a first gear (29) is connected to one end of the moving rod (212), and a first rack (28) meshed with the first gear (29) is fixedly connected to the transverse plate (22).

4. The device for detecting the leakage point of the heat exchanger of the constant temperature and humidity air conditioner as claimed in claim 3, wherein a second rack (215) engaged with the first gear (29) is fixedly connected to the vertical plate (21), and the first rack (28) and the second rack (215) are respectively arranged at two sides of the first gear (29).

5. The device for detecting the leakage point of the heat exchanger of the constant temperature and humidity air conditioner as claimed in claim 4, wherein a sliding hole (213) is formed in the moving rod (212), and a fixed block (214) slidably connected with the sliding hole (213) is fixedly connected to the vertical plate (21).

6. The equipment for detecting the leak point of the heat exchanger of the constant-temperature and constant-humidity air conditioner as claimed in claim 5, wherein a first rotating disc (210) is fixedly connected to the first gear (29), a second connecting rod (211) is connected to the first rotating disc (210), and one end of the second connecting rod (211) is connected with the lifting frame (23).

7. The heat exchanger leakage point detection device of the constant temperature and humidity air conditioner is characterized in that one end of the rotating plate (3) is connected with a second gear (31), a sliding block (6) is connected on the underframe (1) in a sliding manner, and a third rack (7) meshed with the second gear (31) is fixedly connected on the sliding block (6);

a rotating rod (8) is connected to the bottom frame (1), and a second rotating disc (10) is connected to one end of the rotating rod (8); and a third connecting rod (11) is connected to the second rotating disc (10), and one end of the third connecting rod (11) is rotatably connected with the sliding block (6).

8. The heat exchanger leakage point detection device of the constant temperature and humidity air conditioner according to claim 7, wherein a roller (217) contacting with the rotating wheel (27) is connected to the vertical plate (21), a first helical gear (218) is connected to a rotating shaft of the roller (217), and a second helical gear (9) engaged with the first helical gear (218) is connected to one end of the rotating rod (8).

9. The equipment for detecting the leak point of the heat exchanger of the constant temperature and humidity air conditioner as claimed in claim 1 or 8, wherein the clamp assembly comprises a fixed frame (33) and a clamping plate (34), a rod body (35) is fixedly connected to the clamping plate (34), and a spring (32) is connected to the rod body (35).