Heat pipe heat exchanger convenient to use

Abstract

The utility model discloses a heat pipe exchanger convenient to use, which comprises a smoke passing groove, a plurality of heat pipes and a plurality of ash scraping mechanisms, a plurality of tightly arranged heat exchange water tanks are arranged at the upper end of the smoke passing groove, the heat pipes are arranged on the heat exchange water tanks, the heat release ends of the heat pipes are arranged in the heat exchange water tanks, the heat absorption ends of the heat pipes are arranged in the smoke passing groove, and the ash scraping mechanisms are arranged on the smoke passing groove. Ash scraping mechanisms are arranged at the bottoms of the smoke passing grooves, the ash scraping mechanisms are arranged at the heat absorption ends of the corresponding heat pipes in a sleeving mode, each ash scraping mechanism comprises a rotating shaft I, a rotating head and an elastic ash scraping assembly, the elastic ash scraping assembly is arranged at the inner end of the rotating shaft I, the rotating head is arranged at the outer end of the rotating shaft I, and each elastic ash scraping assembly comprises a plurality of scraping pieces. Compared with the prior art, the heat exchanger has the advantages that the heat exchange effect can be ensured, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pipe heat exchangers, in particular to a heat pipe heat exchanger that is easy to use. Background Art

[0002] In recent years, water-jacketed heat pipe heat exchangers have begun to be used in low-temperature economizers. Because the heat pipe itself is divided into a hot end and a cold end, the hot end of the heat pipe low-temperature economizer is arranged inside the flue, and the cold end is arranged outside the flue. A water jacket is installed at the cold end of each heat pipe, and then the water jackets are connected in series with small-diameter pipes to achieve the circulation of cooling water, thereby greatly avoiding the leakage problem of traditional low-temperature economizers and allowing the heat pipe low-temperature economizer to operate continuously for a long time.

[0003] The heat absorbing end of the existing heat pipe heat exchanger is located in the flue, absorbing the waste heat flowing through the flue gas for recycling. Since the heat absorbing end of the heat pipe heat exchanger is directly exposed to the flue gas, dust and other substances in the flue gas can easily adhere to the heat absorbing end of the heat pipe heat exchanger, ultimately affecting the heat exchange effect. Summary of the invention

[0004] The purpose of the utility model is to solve the problems in the prior art and to provide a heat pipe heat exchanger which is easy to use and can ensure the heat exchange effect and is easy to use.

[0005] To achieve the above-mentioned purpose, the utility model proposes a heat pipe heat exchanger that is easy to use, including a smoke trough, a plurality of heat pipes and a plurality of scraping mechanisms, wherein a plurality of closely arranged water exchange tanks are provided at the upper end of the smoke trough, and the water exchange tanks are provided with heat pipes, the heat release ends of the heat pipes are arranged in the water exchange tanks, and the heat absorption ends of the heat pipes are located in the smoke trough, and a scraping mechanism is provided at the bottom of the smoke trough, and the scraping mechanism is sleeved on the heat absorption ends of the corresponding heat pipes, and the scraping mechanism includes a rotating shaft I, a rotating head, and an elastic scraping assembly, the inner end of the rotating shaft I is provided with an elastic scraping assembly, and the outer end of the rotating shaft I is provided with a rotating head, and the elastic scraping assembly includes a plurality of scrapers, and the working ends of the scrapers are in contact with the circumferential surface of the heat absorption end of the heat pipe.

[0006] Preferably, the elastic scraper assembly also includes a sleeve with a closed rear end, two rotating shafts II, an annular body, two connecting arms and a tension spring, a rotating shaft II is rotatably provided between the sleeve and the annular body, a scraper is provided on the rotating shaft II, a connecting arm is provided at the front end of the rotating shaft II, and a tension spring is provided between the free ends of the two connecting arms.

[0007] Preferably, the rotating shaft I is rotatably mounted on a mounting seat, and the mounting seat is fixedly connected to the smoke passage slot via a plurality of screws.

[0008] Preferably, the heat exchange water tank comprises an upper water tank, a lower water tank and a plurality of casings, the upper water tank and the lower water tank are connected and communicated by casings, and drainage baffles are provided in the upper water tank and the lower water tank so that the water flows from the rearmost casing to the frontmost casing alternately downward and upward, and a water inlet and a water outlet are respectively provided at the front and rear ends of the upper water tank.

[0009] Preferably, the heat release end of the heat pipe is located in the corresponding sleeve, and the upper drainage baffles and the lower drainage baffles are arranged alternately.

[0010] Preferably, an insulating layer is provided at the lower end of the lower water tank, and a sealing pressure plate sleeved on the heat pipe is provided at the lower end of the insulating layer, and the insulating layer has at least the functions of heat insulation, corrosion prevention and leakage prevention.

[0011] Preferably, the lower water box, the sealing pressure plate and the frame on the smoke trough cooperate to form a casting space for the isolation layer.

[0012] Preferably, the heat pipes are all fixedly sleeved with a connecting sleeve, the connecting sleeve passes through the lower box wall, the insulating layer and the sealing pressure plate of the corresponding lower water box, and the connecting sleeve is fully welded to the lower box wall and the sealing pressure plate of the lower water box.

[0013] Preferably, the lower end of each heat pipe is provided with a conical guide head.

[0014] The beneficial effects of the utility model are as follows: the utility model provides a scraping mechanism at the bottom of the smoke trough, the scraping mechanism is sleeved on the heat absorbing end of the corresponding heat pipe, the scraping mechanism includes a rotating shaft, a rotating head, and an elastic scraping assembly. The inner end of the rotating shaft is provided with an elastic scraping assembly, the outer end of the rotating shaft is provided with a rotating head, the elastic scraping assembly includes a plurality of scrapers, the working ends of the scrapers are in contact with the circumferential surface of the heat absorbing end of the heat pipe, the rotating shaft is driven to rotate by rotating the rotating head, and the rotating shaft drives the elastic scraping assembly to rotate to scrape off the attachments on the circumferential surface of the heat absorbing end of the heat pipe. Compared with the prior art, the heat exchange effect can be guaranteed and it is easy to use.

[0015] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a heat pipe heat exchanger that is easy to use in the utility model;

[0017] Figure 2 yes Figure 1 Partial cross-sectional view of AA;

[0018] Figure 3 It is a structural diagram of the scraping mechanism.

[0019] In the figure: 1-smoke trough, 2-heat pipe, 3-scraping mechanism, 4-heat exchange water tank, 5-isolation layer, 6-sealing pressure plate, 7-frame, 8-casting space, 9-connecting sleeve, 10-conical guide head, 31-rotating shaft I, 32-rotating head, 33-elastic scraping assembly, 41-upper water tank, 42-lower water tank, 43-sleeve, 44-drainage baffle, 45-water inlet, 46-water outlet, 331-scraper, 332-sleeve, 333-rotating shaft, 334-ring body, 335-connecting arm, 336-tension spring. DETAILED DESCRIPTION

[0020] See also Figure 1 The utility model discloses a heat pipe heat exchanger which is convenient to use, comprising a smoke trough 1, a plurality of heat pipes 2 and a plurality of scraping mechanisms 3. The upper end of the smoke trough 1 is provided with a plurality of closely arranged water exchange tanks 4, and the water exchange tanks 4 are provided with heat pipes 2. The heat release end of the heat pipe 2 is arranged in the water exchange tank 4, and the heat absorption end of the heat pipe 2 is located in the smoke trough 1. A scraping mechanism 3 is provided at the bottom of the smoke trough 1, and the scraping mechanism 3 is sleeved on the heat absorption end of the corresponding heat pipe 2. The scraping mechanism 3 comprises a rotating shaft 131, a rotating head 32, and an elastic scraping assembly 33. The inner end of the rotating shaft 131 is provided with an elastic scraping assembly 33, and the outer end of the rotating shaft 131 is provided with a rotating head 32. The elastic scraping assembly 33 comprises a plurality of scrapers 331, and the working end of the scraper 331 contacts the circumferential surface of the heat absorption end of the heat pipe 2.

[0021] See also Figure 3 The elastic scraper assembly 33 also includes a sleeve 332 with a closed rear end, two rotating shafts II333, an annular body 334, two connecting arms 335 and a tension spring 336. A rotating shaft II333 is rotatably provided between the sleeve 332 and the annular body 334. A scraper 331 is provided on the rotating shaft II333. A connecting arm 335 is provided at the front end of the rotating shaft II333. A tension spring 336 is provided between the free ends of the two connecting arms 335.

[0022] See also Figure 3 The rotating shaft I31 is rotatably arranged on the mounting seat 34, and the mounting seat 34 is fixedly connected to the smoke passage 1 through a plurality of screws.

[0023] See also Figure 1 The water exchange water tank 4 includes an upper water tank 41, a lower water tank 42 and a plurality of sleeves 43. The upper water tank 41 and the lower water tank 42 are connected and communicated through the sleeves 43. A drainage baffle 44 is provided in each of the upper water tank 41 and the lower water tank 42, so that the water flows from the rearmost sleeve 43 to the frontmost sleeve 43 alternately downward and upward. A water inlet 45 and a water outlet 46 are respectively provided at the front and rear ends of the upper water tank 41.

[0024] See also Figure 1The heat release end of the heat pipe 2 is located in the corresponding sleeve 43, and the upper drainage baffle 44 and the lower drainage baffle 44 are arranged alternately.

[0025] See also Figure 1 , 2 The lower end of the lower water tank 42 is provided with an isolation layer 5, and the lower end of the isolation layer 5 is provided with a sealing pressing plate 6 sleeved on the heat pipe 2. The isolation layer 5 has at least the functions of heat insulation, corrosion prevention and leakage prevention.

[0026] See also Figure 1 , 2 The lower water box 42 , the sealing pressing plate 6 and the frame 7 on the smoke trough 1 cooperate to form a casting space 8 for the isolation layer 5 .

[0027] See also Figure 1 , 2 The heat pipes 2 are all fixedly sleeved with connecting sleeves 9, and the connecting sleeves 9 pass through the lower box wall, the isolation layer 5 and the sealing pressure plate 6 of the corresponding lower water box 42. The connecting sleeves 9 are fully welded to the lower box wall of the lower water box 42 and the sealing pressure plate 6.

[0028] The isolation layer 5 includes the following components and the weight proportions of each component are: organic silicon polymer: 25 parts, hydroxy silicone oil: 8 parts, catalyst: 4 parts, coupling agent: 4 parts, aminosilane: 10 parts, dibutyltin diosilicate: 3 parts, calcium carbonate: 15 parts, meteorological silica: 12 parts, methyl silane: 6 parts, organic methyl silicone: 6 parts and organic hydroxy silicone: 7 parts. The above formula is used in the present application to achieve good heat insulation, anti-corrosion and anti-leakage effects.

[0029] See also Figure 1 The lower end of each heat pipe 2 is provided with a conical guide head 10.

[0030] Working process of this utility model:

[0031] During the operation of the heat pipe heat exchanger of the utility model, water enters the heat exchange water tank 4 from the water inlet 45 , exchanges heat with the heat release end of the heat pipe 2 when flowing through the heat exchange water tank 4 , and is finally discharged from the water outlet 46 .

[0032] When the heat absorbing end of the heat pipe 2 needs to be cleaned, the rotating head 32 is rotated to drive the rotating shaft 131 to rotate, and the rotating shaft 131 drives the elastic scraping assembly 33 to rotate to scrape off the attachments on the peripheral surface of the heat absorbing end of the heat pipe 2.

[0033] The water tank is also a support for the heat exchange tubes, which can reduce material loss; at the same time, this structural method improves the efficiency of tube row processing and improves the efficiency of the heat exchanger through serpentine water flow.

[0034] By improving the design by adding an isolation layer between the water tank and the sealing pressure plate, the contact between the flue gas and the water tank is cut off, which can greatly reduce the low-temperature corrosion of the water tank; at the same time, it also reduces the corrosion of the weld between the water tank and the heat pipe; and can also prevent the leakage of flue gas.

[0035] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A heat pipe heat exchanger that is easy to use, characterized in that: The invention comprises a smoke trough (1), a plurality of heat pipes (2) and a plurality of scraping mechanisms (3). The upper end of the smoke trough (1) is provided with a plurality of closely arranged heat exchange tanks (4). The heat exchange tanks (4) are each provided with a heat pipe (2). The heat release end of the heat pipe (2) is arranged in the heat exchange tank (4). The heat absorption end of the heat pipe (2) is located in the smoke trough (1). The bottom of the smoke trough (1) is provided with a scraping mechanism (3). The scraping mechanism (3) is sleeved on the heat absorption end of the corresponding heat pipe (2). The scraping mechanism (3) comprises a rotating shaft I (31), a rotating head (32) and an elastic scraping assembly (33). The inner end of the rotating shaft I (31) is provided with an elastic scraping assembly (33). The outer end of the rotating shaft I (31) is provided with a rotating head (32). The elastic scraping assembly (33) comprises a plurality of scraping blades (331). The working ends of the scraping blades (331) are in contact with the circumferential surface of the heat absorption end of the heat pipe (2).

2. The heat pipe heat exchanger convenient to use according to claim 1, characterized in that: The elastic scraper assembly (33) further comprises a sleeve (332) with a closed rear end, two rotating shafts II (333), an annular body (334), two connecting arms (335) and a tension spring (336); a rotating shaft II (333) is rotatably arranged between the sleeve (332) and the annular body (334); a scraper blade (331) is arranged on each of the rotating shafts II (333); a connecting arm (335) is arranged at the front end of each of the rotating shafts II (333); and a tension spring (336) is arranged between the free ends of the two connecting arms (335).

3. The heat pipe heat exchanger convenient to use according to claim 1, characterized in that: The rotating shaft I (31) is rotatably mounted on a mounting seat (34), and the mounting seat (34) is fixedly connected to the smoke passage slot (1) via a plurality of screws.

4. The heat pipe heat exchanger convenient to use as claimed in claim 1, characterized in that: The heat exchange water tank (4) comprises an upper water tank (41), a lower water tank (42) and a plurality of sleeves (43); the upper water tank (41) and the lower water tank (42) are connected and communicated via the sleeves (43); a drainage baffle (44) is provided in each of the upper water tank (41) and the lower water tank (42) so that the water flows from the rearmost sleeve (43) to the frontmost sleeve (43) alternately downward and upward; and a water inlet (45) and a water outlet (46) are provided at the front and rear ends of the upper water tank (41), respectively.

5. The heat pipe heat exchanger convenient to use as claimed in claim 4, characterized in that: The heat release end of the heat pipe (2) is located in the corresponding sleeve (43), and the upper drainage baffle (44) and the lower drainage baffle (44) are arranged alternately.

6. The heat pipe heat exchanger convenient to use as claimed in claim 4, characterized in that: An isolation layer (5) is provided at the lower end of the lower water tank (42), and a sealing pressing plate (6) sleeved on the heat pipe (2) is provided at the lower end of the isolation layer (5). The isolation layer (5) has at least the functions of heat insulation, corrosion prevention and leakage prevention.

7. The heat pipe heat exchanger convenient to use as claimed in claim 6, characterized in that: The lower water box (42), the sealing pressure plate (6) and the frame (7) on the smoke trough (1) cooperate to form a casting space (8) for the isolation layer (5).

8. The heat pipe heat exchanger convenient to use as claimed in claim 6, characterized in that: The heat pipes (2) are all fixedly sleeved with connection sleeves (9), the connection sleeves (9) passing through the lower box wall, the isolation layer (5) and the sealing pressure plate (6) of the corresponding lower water box (42), and the connection sleeves (9) are fully welded to the lower box wall and the sealing pressure plate (6) of the lower water box (42).

9. A heat pipe heat exchanger that is easy to use according to any one of claims 1 to 8, characterized in that: The lower end of each heat pipe (2) is provided with a conical guide head (10).

Images