Heat pipe type low-temperature economizer heat exchange equipment

Abstract

The utility model discloses a heat pipe type low-temperature economizer heat exchange device, which belongs to the technical field of low-temperature economizers and comprises a base plate, a plurality of heat pipes, a plurality of heat pipes and a plurality of heat pipes. The water tank is installed on the upper side face of the base plate, and a water inlet pipe and a water outlet pipe are arranged on the water tank; the multiple heat pipes are fixedly installed on the base plate, the heat dissipation ends of the heat pipes penetrate through the base plate and the side wall of the water tank and extend into the water tank, and the heat absorption ends of the heat pipes penetrate through the base plate and extend into the flue; wherein a first cleaning assembly used for cleaning scale on the outer side of the heat dissipation end of the heat pipe is arranged in the water tank, and a second cleaning assembly used for cleaning accumulated dust on the outer side of the heat absorption end of the heat pipe is installed below the base plate. Influence of heat efficiency conduction of the heat pipe by incrustation scale and accumulated dust is avoided, and continuous use of equipment is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of low-temperature economizers, in particular to a heat pipe type low-temperature economizer heat exchange device. Background Art

[0002] A heat pipe low-temperature economizer is a highly efficient heat recovery device widely used in power plants, heating boilers, and other industrial fields. It utilizes heat pipe technology to recover waste heat from flue gas. It utilizes the phase change of the working fluid within the heat pipe to transfer heat from the flue gas to water or other working medium, thereby achieving efficient heat recovery and utilization. During operation, the accumulation of dust and scale on the outside of the heat pipe is a significant factor affecting heat exchange efficiency. Over extended use, this accumulation can significantly reduce heat exchange efficiency.

[0003] Existing heat pipe-type low-temperature economizer heat exchangers require regular maintenance and cleaning. However, traditional cleaning methods often require disassembling or shutting down the equipment, which not only increases maintenance costs but also affects the continuous use of the equipment. To address these issues, the present utility model provides a heat pipe-type low-temperature economizer heat exchanger. Utility Model Content

[0004] In response to the above-mentioned technical deficiencies, the purpose of the present utility model is to provide a heat pipe type low-temperature economizer heat exchanger device, which can clean the scale and ash deposits attached to the heat pipe without affecting the operation of the equipment, thereby preventing the scale and ash deposits from affecting the heat efficiency conduction of the heat pipe and not affecting the continuous use of the equipment.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a heat pipe type low temperature economizer heat exchange device, comprising:

[0006] a base plate, the base plate being mounted above the flue through a plurality of mounting holes formed thereon;

[0007] A water tank is mounted on the upper side of the base plate and is provided with a water inlet pipe and a water outlet pipe;

[0008] a plurality of heat pipes, wherein the plurality of heat pipes are fixedly mounted on the base plate, and the heat dissipation ends of the heat pipes extend through the base plate and the side wall of the water tank to the interior of the water tank, and the heat absorption ends of the heat pipes extend through the base plate to the interior of the flue;

[0009] Among them, the inside of the water tank is provided with a first cleaning component for cleaning scale on the outside of the heat dissipation end of the heat pipe, and the bottom of the base plate is installed with a second cleaning component for cleaning dust on the outside of the heat absorption end of the heat pipe.

[0010] Preferably, the first cleaning component comprises:

[0011] A cleaning plate is slidably mounted inside the water tank and simultaneously sleeved on the outsides of the plurality of heat pipes;

[0012] A plurality of first scraping rings are sleeved on the outer side of each heat pipe. The first scraping ring is fixedly connected to the upper side of the cleaning plate, and the inner ring surface of the first scraping ring is in close contact with the heat pipe.

[0013] Preferably, a plurality of water leakage holes are provided on the cleaning plate.

[0014] Preferably, the second cleaning component comprises:

[0015] A cleaning frame, the cleaning frame is located below the substrate and is simultaneously sleeved on the outsides of the plurality of heat pipes;

[0016] A plurality of second scraping rings, each heat pipe is sleeved with a second scraping ring on its outer side, the second scraping ring is fixedly connected to the lower side of the cleaning frame, and the inner annular surface of the second scraping ring is in close contact with the heat pipe;

[0017] Two screw rods are fixedly mounted on both ends of the cleaning frame, and both ends of the screw rods pass through the base plate and extend to the top of the base plate. The screw rods are threadedly connected to a driven gear rotatably mounted on the base plate, and the driven gear is driven by a motor.

[0018] Preferably, the cleaning frame and the screw are both hollow structures, the screw is connected to the cleaning frame, and the upper end of the screw is connected to an external negative pressure suction device;

[0019] A plurality of suction holes are provided on the outer periphery of the second scraper ring and on the lower side of the cleaning frame.

[0020] Preferably, the water inlet pipe is installed at the lower corner of one side of the water tank, the water outlet pipe is installed at the upper corner of the other side of the water tank, and the connecting line between the water inlet pipe and the water outlet pipe coincides with the center point of the water tank.

[0021] Preferably, the plurality of heat pipes are distributed in multiple rows, and the plurality of heat pipes in two adjacent rows are staggered.

[0022] The beneficial effects of the present invention are:

[0023] The utility model realizes that the first scraper ring can clean the scale on the heat pipe by pulling the cleaning plate upwards through the arrangement of the cleaning plate and the first scraper ring. The leakage holes arranged on the cleaning plate ensure that the water inside the water tank will not be disturbed during the cleaning process, thereby ensuring that the equipment can still be used normally during the scale cleaning process.

[0024] The utility model realizes that the second scraper ring can effectively remove the dust accumulated on the heat pipe by moving the cleaning frame downward through the arrangement of the cleaning frame and the second scraper ring, and the suction hole is provided on the cleaning frame, so that the dust can be sucked away during the dust cleaning process, which effectively prevents the dust from clogging the flue and ensures the continuous operation of the equipment during the cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a structural schematic diagram of a heat pipe type low-temperature economizer heat exchange equipment provided in an embodiment of the utility model.

[0027] Figure 2 This is a schematic diagram of the internal structure of the water tank of the utility model.

[0028] Figure 3 This is an exploded view of the cleaning plate and water tank of the utility model.

[0029] Figure 4 This is a schematic diagram of the connection between the cleaning frame and the second scraper ring of the utility model.

[0030] Figure 5 It is a cross-sectional view of the present utility model.

[0031] Figure 6 For this utility model Figure 5 Enlarged view of point A.

[0032] Description of reference numerals:

[0033] 1. Base plate, 2. Water tank, 3. Water inlet pipe, 4. Water outlet pipe, 5. Heat pipe, 6. Cleaning plate, 7. First scraper ring, 8. Cleaning frame, 9. Second scraper ring, 10. Screw, 11. Driven gear, 12. Motor. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] The utility model provides a heat pipe type low temperature economizer heat exchange equipment, such as Figures 1 to 6 shown.

[0036] Example 1:

[0037] A heat pipe type low-temperature economizer heat exchanger includes a base plate 1. The four corners of the base plate 1 are provided with mounting holes. The base plate 1 can be installed above the flue through the mounting holes. A water tank 2 is also installed on the upper side of the base plate 1. A plurality of heat pipes 5 are also fixedly connected to the base plate 1. The heat dissipation end of the heat pipe 5 passes through the base plate 1 and the water tank 2 and extends to the interior of the water tank 2. The heat absorption end of the heat pipe 5 passes through the base plate 1 and extends to the interior of the flue. When exhausting smoke inside the flue, the heat of the flue gas will be absorbed by the heat absorption end of the heat pipe 5, and the absorbed heat will be dissipated to the water tank 2 by the heat dissipation end of the heat pipe 5. The specific structure and working principle of the heat pipe 5 are existing technologies and are now widely used, so they will not be elaborated in this utility model.

[0038] A water inlet pipe 3 is provided at the lower corner of one side of the water tank 2, and a water outlet pipe 4 is provided at the upper corner of the other side, and the connecting line between the water inlet pipe 3 and the water outlet pipe 4 coincides with the center point of the water tank 2, so that the water entering the water tank 2 through the water inlet pipe 3 can flow through the multiple heat pipes 5 more fully and then be discharged through the water outlet pipe 4. The multiple heat pipes 5 are distributed in multiple rows, and the multiple heat pipes 5 in two adjacent rows are staggered, so that the heat pipes 5 can better contact with the water inside the water tank 2, which is beneficial to heat transfer.

[0039] Example 2:

[0040] On the basis of Example 1, in order to clean the scale attached to the outer side of one end of the heat pipe 5 located inside the water tank 2 to prevent the scale from reducing the efficiency of heat transfer, a first cleaning component is provided inside the water tank 2. The first cleaning component includes:

[0041] The cleaning plate 6 is slidably installed inside the water tank 2 and is simultaneously sleeved on the outside of multiple heat pipes 5. A first scraper ring 7 is sleeved on the outside of each heat pipe 5. The inner ring surface of the first scraper ring 7 is close to the heat pipe 5, and the upper end of the outer ring surface is tilted toward the axial direction of the corresponding heat pipe 5. The first scraper ring 7 is fixedly connected to the upper side surface of the cleaning plate 6. During the upward sliding process of the cleaning plate 6, the first scraper ring 7 can scrape off the scale attached to the heat pipe 5. Handles are provided at both ends of the upper side surface of the cleaning plate 6, and the staff can pull the cleaning plate 6 by the handles.

[0042] The cleaning plate 6 is also provided with a plurality of leakage holes. When the cleaning plate 6 moves upward, the scale scraped off by the first scraper ring 7 can be driven to move upward, but it will not affect the water inside the water tank 2. The scale can still be cleaned during use. The upper side wall of the water tank 2 is designed to be detachable. When the scale needs to be cleaned, the upper side wall of the water tank 2 can be removed and the cleaning plate 6 can be pulled by the handle.

[0043] Example 3:

[0044] On the basis of Example 1, in order to clean the dust deposited on the outer side of the end of the heat pipe 5 located below the substrate 1 to prevent the dust from reducing the efficiency of heat transfer, a second cleaning component is provided inside the substrate 1. The second cleaning component includes:

[0045] The cleaning frame 8 is located below the substrate 1 and is simultaneously sleeved on the outer sides of multiple heat pipes 5. A second scraper ring 9 is sleeved on the outer side of each heat pipe 5. The second scraper ring 9 is fixedly connected to the lower side of the cleaning frame 8. The inner ring surface of the second scraper ring 9 is close to the heat pipe 5, and the lower end of the outer ring surface of the second scraper ring 9 is tilted toward the axial direction of the corresponding heat pipe 5. During the downward movement of the cleaning frame 8, the second scraper ring 9 can clean the accumulated dust attached to the outer surface of the heat pipe 5.

[0046] Both ends of the upper side of the cleaning frame 8 are fixedly connected with a screw 10. The upper end of the screw 10 passes through the base plate 1 and extends to the top of the base plate 1. The screw 10 is threadedly connected to a driven gear 11 rotatably mounted on the upper side of the base plate 1. The driven gear 11 is meshed with a driving gear mounted on a motor shaft of a motor 12. The motor 12 is mounted on the side wall of the water tank 2. The rotation of the motor shaft of the motor 12 can drive the driven gear 11 to rotate through the driving gear, so that the lifting and lowering of the cleaning frame 8 can be controlled by the screw 10.

[0047] Furthermore, in order to prevent the scraped ash from falling inside the flue, causing the flue to be blocked and affecting the discharge of flue gas, the cleaning frame 8 and the screw 10 are set to a hollow structure, and the cleaning frame 8 and the screw 10 are connected, and the screw 10 is connected to the external negative pressure suction equipment. A plurality of suction holes are provided on the outer periphery of the second scraper ring 9 and on the lower side of the cleaning frame 8. When cleaning the ash, the external negative pressure suction equipment is started, and the cleaned ash can be drawn out through the suction holes, the cleaning frame 8 and the screw 10, so as to prevent the ash from falling inside the flue and affecting the exhaust of smoke. The ash can still be cleaned during use without affecting the use.

[0048] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A heat pipe type low temperature economizer heat exchange equipment, characterized in that: include: A base plate (1), the base plate (1) being mounted above the flue via a plurality of mounting holes formed thereon; A water tank (2), the water tank (2) being mounted on the upper side of the base plate (1), and the water tank (2) being provided with a water inlet pipe (3) and a water outlet pipe (4); A plurality of heat pipes (5), wherein the plurality of heat pipes (5) are fixedly mounted on the base plate (1), and the heat dissipation ends of the heat pipes (5) penetrate the base plate (1) and the side wall of the water tank (2) to extend to the interior of the water tank (2), and the heat absorption ends of the heat pipes (5) penetrate the base plate (1) to extend to the interior of the flue; A first cleaning component for cleaning scale on the outside of the heat dissipation end of the heat pipe (5) is provided inside the water tank (2), and a second cleaning component for cleaning dust on the outside of the heat absorption end of the heat pipe (5) is installed below the base plate (1).

2. The heat pipe type low temperature economizer heat exchange equipment according to claim 1, characterized in that: The first cleaning component includes: A cleaning plate (6), the cleaning plate (6) being slidably mounted inside the water tank (2) and simultaneously sleeved on the outsides of the plurality of heat pipes (5); A plurality of first scraping rings (7) are provided, and a first scraping ring (7) is sleeved on the outer side of each heat pipe (5). The first scraping ring (7) is fixedly connected to the upper side of the cleaning plate (6), and the inner annular surface of the first scraping ring (7) is in close contact with the heat pipe (5).

3. The heat pipe type low temperature economizer heat exchange equipment according to claim 2, characterized in that: The cleaning plate (6) is provided with a plurality of water leakage holes.

4. The heat pipe type low temperature economizer heat exchange equipment according to claim 1, characterized in that: The second cleaning component includes: A cleaning frame (8), the cleaning frame (8) being located below the substrate (1) and simultaneously sleeved on the outside of the plurality of heat pipes (5); A plurality of second scraping rings (9), each heat pipe (5) being sleeved with a second scraping ring (9), the second scraping ring (9) being fixedly connected to the lower side of the cleaning frame (8), and the inner annular surface of the second scraping ring (9) being in close contact with the heat pipe (5); Two screw rods (10) are fixedly mounted at both ends of the cleaning frame (8), and both ends of the screw rods (10) pass through the base plate (1) and extend to the top of the base plate (1), and the screw rods (10) are threadedly connected to a driven gear (11) rotatably mounted on the base plate (1), and the driven gear (11) is driven by a motor (12).

5. The heat pipe type low temperature economizer heat exchange equipment according to claim 4, characterized in that: The cleaning frame (8) and the screw (10) are both hollow structures, and the screw (10) is in communication with the cleaning frame (8), and the upper end of the screw (10) is connected to an external negative pressure suction device; A plurality of suction holes are provided on the outer periphery of the second scraper ring (9) and on the lower side of the cleaning frame (8).

6. The heat pipe type low temperature economizer heat exchange equipment according to claim 1, characterized in that: The water inlet pipe (3) is installed at the lower corner of one side of the water tank (2), and the water outlet pipe (4) is installed at the upper corner of the other side of the water tank (2), and the connecting line between the water inlet pipe (3) and the water outlet pipe (4) coincides with the center point of the water tank (2).

7. The heat pipe type low temperature economizer heat exchange equipment according to claim 1, characterized in that: The plurality of heat pipes (5) are distributed in multiple rows, and the plurality of heat pipes (5) in two adjacent rows are staggered.

Images