Heat exchange device for heat supply system

Abstract

The utility model relates to the technical field of heat supply, and provides a heat exchange device for a heat supply system. The heat exchange tube group is arranged in the shell; the turbulent flow assembly is rotationally arranged in the shell and located on the outer side of the heat exchange tube set; and the scraping plate is arranged on the heat exchange tube set in a sliding mode, the scraping plate is in transmission connection with the turbulent flow assembly, and when the turbulent flow assembly rotates along the inner wall of the shell, the scraping plate moves along the outer wall of the heat exchange tube set. By means of the technical scheme, the problems that in the prior art, in order to guarantee normal work of a heat exchange device, the heat exchange device needs to be completely disassembled, impurities and scale in a pipeline of the heat exchange device need to be cleaned up, the cleaning steps are tedious, and manpower and material resources are consumed are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating, and in particular to a heat exchange device for a heating system. Background Art

[0002] At present, the central heating systems of high-rise buildings all adopt vertical partitioning to reduce the working pressure on the heat dissipation equipment components. There are generally two ways to provide zoned heating. One is to set up a heat exchange unit in each zone, which includes a circulating water pump, a heat exchange device, a water supply device, etc., to form an independent indirect heat exchange system.

[0003] In an existing heat exchange device, water flows in the pipes of the heat exchange device. After a period of time, a large amount of impurities and scale will be deposited in the pipes of the heat exchange device, affecting the heat exchange. To ensure the normal operation of the heat exchange device, the heat exchange device needs to be completely disassembled to clean the impurities and scale in the pipes of the heat exchange device. The cleaning steps are cumbersome and consume manpower and material resources.

[0004] Therefore, the art needs a new heat exchange device for a heating system to solve the above problems. Utility Model Content

[0005] The utility model proposes a heat exchange device for a heating system, which solves the problem in the related art that in order to ensure the normal operation of the heat exchange device, the heat exchange device needs to be completely disassembled to clean the impurities and scale in the pipes of the heat exchange device, and the cleaning steps are cumbersome and wasteful of manpower and material resources.

[0006] The technical solution of the utility model is as follows:

[0007] A heat exchange device for a heating system, comprising:

[0008] case;

[0009] A heat exchange tube group is arranged in the shell;

[0010] A spoiler assembly is rotatably disposed in the shell and located outside the heat exchange tube group;

[0011] A scraper is slidably arranged on the heat exchange tube group. The scraper is transmission-connected to the spoiler assembly. When the spoiler assembly rotates along the inner wall of the shell, the scraper moves along the outer wall of the heat exchange tube group.

[0012] Preferably, the spoiler assembly comprises:

[0013] A transmission shaft is rotatably disposed in the housing, and two ends of the transmission shaft respectively penetrate two ends of the housing;

[0014] A bent plate, wherein the side of the bent plate close to the shell contacts the inner wall of the shell, and a gap exists between the side of the bent plate close to the heat exchange tube group and the outer contour of the heat exchange tube group.

[0015] Preferably, the transmission shaft is a screw rod, and the bent plate is a threaded plate.

[0016] Preferably, the housing comprises:

[0017] Cylinder;

[0018] There are two tube sheets, which are respectively fixedly arranged at the two ends of the cylinder; the heat exchange tube group is plugged into the tube sheets;

[0019] There are two rotating plates, which are respectively arranged at the two ends of the cylinder, the tube plate and the rotating plate located on the same side of the cylinder are located in the same plane, the outer ring side wall of the rotating plate is slidably connected to the cylinder, and the inner ring side wall of the rotating plate is slidably connected to the tube plate.

[0020] Preferably, the heat exchange tube group includes a plurality of heat exchange tubes, and both ends of each of the heat exchange tubes penetrate the tube sheet. The scraper is slidably disposed on the tube bodies of the plurality of heat exchange tubes, and the scraper includes:

[0021] The plate body is circular, and the circumferential side wall of the plate body is in contact with the side edge of the curved plate close to the heat exchange tube group;

[0022] There are multiple mounting holes, and the multiple mounting holes correspond one-to-one to the heat exchange tubes of the heat exchange tube group. The diameter of the mounting hole is larger than the diameter of the heat exchange tube, and the mounting hole is concentrically arranged with the heat exchange tube.

[0023] Preferably, the scraper further comprises:

[0024] A cleaning ring is installed in the installation hole, and a side wall of the cleaning ring away from the installation hole abuts against the outer wall of the heat exchange tube.

[0025] Preferably, the cleaning circle comprises:

[0026] A fixing ring, the fixing ring is fixedly connected to the mounting hole;

[0027] A rubber ring is fixedly arranged in the fixing ring, and one end of the rubber ring away from the fixing ring contacts the outer wall of the heat exchange tube group, and the rubber ring is used to clean the outer wall of the heat exchange tube.

[0028] Preferably, sealing rings are provided at the connection between the rotating plate and the tube plate and at the connection between the rotating plate and the cylinder.

[0029] Preferably, a handle is provided on one side of the rotating plate located outside the cylinder.

[0030] Preferably, the housing further comprises:

[0031] The cover body has two covers, which are respectively fixedly arranged at the two ends of the cylinder, and the cover body is connected with the end of the cylinder to form a cavity, and the heat exchange tube group is connected with the cavity.

[0032] The beneficial effects of the utility model are:

[0033] 1. The utility model sets a rotatable spoiler component in the shell. When the heat exchange is performed, the spoiler component guides the flow of the liquid in the shell, increases the path of the liquid flow, and while the liquid is flowing, the liquid flow direction in the gap between the heat exchange tube groups is a straight line direction, and the liquid flow direction under the guidance of the spoiler component is a spiral direction. The two different flow directions of the liquid will also have the effect of mutual impact, which can not only increase the heat exchange effect, but also flush and clean the heat exchange tube group and the inner wall of the shell.

[0034] 2. The utility model rotates the spoiler component, and the scraper inside the spoiler component can also rotate synchronously to scrape the outer wall of the heat exchange tube group, thereby cleaning the outer wall of the heat exchange tube group. The spoiler component rotates to clean the inside of the shell, and the two cooperate with each other to improve the cleaning effect of the inner wall of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0036] Figure 1 This is a schematic diagram of the structure of the heat exchange device of the utility model;

[0037] Figure 2 This is a schematic diagram of the structure of the heat exchange tube group of the utility model;

[0038] Figure 3 This is a schematic diagram of the positional relationship among the spoiler assembly, the scraper and the heat exchange tube group of the utility model;

[0039] Figure 4 This is a schematic diagram of the structure of the spoiler assembly of the utility model;

[0040] Figure 5 This is a side view of the housing of the utility model;

[0041] Figure 6 This is a schematic diagram of the scraper structure of the utility model;

[0042] Figure 7 It is a schematic diagram of the cleaning circle structure of the utility model.

[0043] In the figure, 1, shell; 2, cover; 3, heat exchange tube group; 4, bending plate; 5, transmission shaft; 6, scraper; 7, tube sheet; 8, sealing ring; 9, handle; 10, connecting rod; 11, rotating plate; 12, mounting hole; 13, cleaning ring; 14, rubber ring; 15, fixing ring. DETAILED DESCRIPTION

[0044] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] like Figures 1 to 7 As shown, this embodiment provides a heat exchange device for a heating system, comprising:

[0046] Shell 1;

[0047] The heat exchange tube group 3 is arranged in the shell 1;

[0048] The spoiler assembly is rotatably disposed in the shell 1 and located outside the heat exchange tube group 3;

[0049] The scraper 6 is slidably disposed on the heat exchange tube group 3 , and is transmission-connected to the spoiler assembly. When the spoiler assembly rotates along the inner wall of the shell 1 , the scraper 6 moves along the outer wall of the heat exchange tube group 3 .

[0050] In the above scheme, the heat exchange tube group 3 is composed of multiple heat exchange tube groups 3, the heat exchange tubes in the heat exchange tube group 3 are horizontally arranged in the middle of the inner wall of the shell 1, the spoiler component is arranged between the inner wall of the shell 1 and the heat exchange tube group 3, and the scraper 6 is sleeved on the heat exchange tube group 3. The scraper 6 scrapes the outer wall of the heat exchange tube group 3 to clean the outer wall of the heat exchange tube group 3 to prevent the outer wall of the heat exchange tube group 3 from being covered by impurities such as scale and affecting the heat exchange effect.

[0051] It is also noted that when heat exchange is performed, the liquid flow direction in the gap between the heat exchange tube groups 3 is in a linear direction, and the liquid flow direction under the guidance of the spoiler component is in a spiral direction. The two different flow directions of the above liquids will also have the effect of impacting each other, which can not only increase the heat exchange effect, but also flush and clean the heat exchange tube group 3 and the inner wall of the shell 1.

[0052] Furthermore, the spoiler component includes:

[0053] The transmission shaft 5 is rotatably disposed in the housing 1, and both ends of the transmission shaft 5 penetrate through the two ends of the housing 1 respectively;

[0054] The side of the bent plate 4 close to the shell 1 is in contact with the inner wall of the shell 1, and there is a gap between the side of the bent plate 4 close to the heat exchange tube group 3 and the outer contour of the heat exchange tube group 3. The transmission shaft 5 is a screw rod, and the bent plate 4 is a threaded plate. The transmission shaft 5 adopts a screw rod, which can realize the synchronous movement of the scraper 6 and the bent plate 4. It should be noted that the part of the transmission shaft 5 located outside the shell 1 is connected to the outer wall of the rotating plate 11 through the connecting rod 10, and the transmission shaft 5 is rotatably connected to the middle of the heat exchange tube group 3. In normal use, the synchronous rotation of the transmission shaft 5 and the bent plate 4 can be realized by rotating the rotating plate 11. In addition, the scraper 6 of the device is in contact with the inner contour of the bent plate 4. When cleaning, by moving the scraper 6 and making the scraper 6 located at different positions of the bent plate 4, the water flow can be changed in different directions, and an effective disturbance effect can be achieved, so that the liquid circulating inside the shell 1 will have a torrent at the position of the scraper 6 and the bent plate 4, so as to achieve flushing and cleaning of the inner wall of the shell 1 and the outer wall of the heat exchange tube group 3. The curved plate 4 can also play a role in transportation. When impurities fall into the interior of the shell 1, the impurities can be transported to the position of the liquid outlet of the shell 1 through the curved plate 4 to achieve impurity cleaning.

[0055] Furthermore, the housing 1 comprises:

[0056] Cylinder;

[0057] There are two tube sheets 7, which are fixedly arranged at the two ends of the cylinder respectively; the heat exchange tube group 3 is plugged into the tube sheets 7;

[0058] There are two rotating plates 11, which are respectively arranged at the two ends of the cylinder. The tube sheet 7 and the rotating plate 11 located on the same side of the cylinder are located in the same plane. The outer ring side wall of the rotating plate 11 is slidably connected to the cylinder, and the inner ring side wall of the rotating plate 11 is slidably connected to the tube sheet 7.

[0059] In the above scheme, the tube sheet 7 is in a pancake shape, and a through hole for installing the heat exchange tube is provided at the position of the tube sheet 7 corresponding to the heat exchange tube group 3. It should be noted that the tube sheet 7 is arranged in the middle position of the end of the cylinder, the rotating plate 11 is a circular ring plate, the rotating plate 11 is arranged on the circumferential side wall of the tube sheet 7, and the outer wall of the rotating plate 11 is connected to the end of the cylinder. In addition, in order to improve the connection strength of the cylinder, the rotating plate 11 and the tube sheet 7, a groove is provided on the inner contour of the cylinder, and a groove is also provided on the outer contour of the tube sheet 7. The inner contour of the rotating plate 11 and the outer contour of the rotating plate 11 are both provided with convex edges, and the convex edges cooperate with the grooves to limit the rotating plate 11. A sealing ring 8 is provided at the gap between the convex edges and the grooves. When the heat exchanger needs to be cleaned, the sealing ring 8 can be removed, and then the rotating plate 11 can be rotated.

[0060] Secondly, in order to enhance the connection strength of the tube sheet 7, the tube sheet 7 and the cylinder can be fixed by adding reinforcing ribs. The reinforcing ribs can be selected to be C-shaped to avoid rotation and not affect the rotation of the rotating plate 11.

[0061] The two ends of the bending plate 4 are connected to the opposite side walls of the rotating plate 11 . The bending plate 4 is driven by the rotating plate 11 to rotate along the inner wall of the cylinder, thereby cleaning the inner wall of the shell 1 .

[0062] Further, the heat exchange tube group 3 includes a plurality of heat exchange tubes, both ends of each heat exchange tube penetrate the tube sheet 7, and the scraper 6 is slidably arranged on the tube bodies of the plurality of heat exchange tubes, and the scraper 6 includes:

[0063] The plate body is circular, and the circumferential side wall of the plate body is in contact with the side edge of the curved plate 4 close to the heat exchange tube group 3;

[0064] There are multiple mounting holes 12, and the multiple mounting holes 12 correspond to the heat exchange tubes of the heat exchange tube group 3 one by one. The diameter of the mounting hole 12 is larger than the diameter of the heat exchange tube, and the mounting hole 12 is concentrically arranged with the heat exchange tube.

[0065] In the above scheme, the structure of the scraper 6 is similar to that of the tube sheet 7. The scraper 6 is arranged vertically to the heat exchange tube group 3. When the scraper 6 is driven by the transmission shaft 5 to reciprocate along the cylinder axis, it can disturb the spiral flow of water generated by the bending plate 4 and the direct flow of liquid between the heat exchange tube group 3, thereby increasing the heat exchange effect and the cleaning effect.

[0066] Furthermore, the scraper 6 also includes:

[0067] The cleaning ring 13 is installed in the mounting hole 12, and a side wall of the cleaning ring 13 away from the mounting hole 12 abuts against the outer wall of the heat exchange tube. The cleaning ring 13 is easy to disassemble, so during the cleaning process, due to the different rotation directions of the transmission shaft 5, the forces on the inner wall of each mounting hole 12 of the scraper 6 are also different. The detachable cleaning ring 13 is used, and it is easy to replace when the cleaning ring 13 is worn.

[0068] Further, the cleaning circle 13 includes:

[0069] A fixing ring, the fixing ring is fixedly connected to the mounting hole 12;

[0070] The rubber ring 14 is fixedly arranged in the fixing ring, and one end of the rubber ring 14 away from the fixing ring contacts the outer wall of the heat exchange tube group 3, and the rubber ring 14 is used to clean the outer wall of the heat exchange tube. The fixing ring is used to connect the rubber ring 14 to the mounting hole 12. It should be noted that the fixing ring and the rubber ring 14 used in the device adopt an integrated structure, and the fixing ring can be a hard plastic ring or a wooden ring.

[0071] Further, the connection between the rotating plate 11 and the tube sheet 7 and the connection between the rotating plate 11 and the cylinder are both provided with a sealing ring 8. The sealing ring 8 is a water retaining strip, which is installed between the rotating plate 11 and the tube sheet 7 and between the rotating plate 11 and the cylinder when no cleaning work is performed. When cleaning work is performed, the water retaining strip can be removed.

[0072] Furthermore, a handle 9 is provided on one side of the rotating plate 11 outside the cylinder to facilitate rotating the rotating plate 11.

[0073] Furthermore, the housing 1 further comprises:

[0074] The cover body 2 has two, and the two cover bodies 2 are fixedly arranged at the two ends of the cylinder respectively, and the cover body 2 is connected with the end of the cylinder to form a cavity, and the heat exchange tube group 3 is connected with the cavity. When cleaning, the cover body 2 needs to be removed before cleaning, because the rotating plate 11 is located in the cavity.

[0075] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat exchange device for a heating system, characterized in that: include: Housing (1); A heat exchange tube group (3) is arranged in the shell (1); A spoiler assembly is rotatably disposed in the shell (1) and is located outside the heat exchange tube group (3); A scraper (6) is slidably arranged on the heat exchange tube group (3), and the scraper (6) is transmission-connected to the spoiler assembly. When the spoiler assembly rotates along the inner wall of the shell (1), the scraper (6) moves along the outer wall of the heat exchange tube group (3).

2. The heat exchange device for a heating system according to claim 1, characterized in that: The spoiler kit includes: A transmission shaft (5) is rotatably disposed in the housing (1), and two ends of the transmission shaft (5) respectively penetrate two ends of the housing (1); A bent plate (4), wherein the side edge of the bent plate (4) close to the shell (1) contacts the inner wall of the shell (1), and a gap exists between the side edge of the bent plate (4) close to the heat exchange tube group (3) and the outer contour of the heat exchange tube group (3).

3. The heat exchange device for a heating system according to claim 2, characterized in that: The transmission shaft (5) is a screw rod, and the bent plate (4) is a threaded plate.

4. The heat exchange device for a heating system according to claim 3, characterized in that: The housing (1) comprises: Cylinder; There are two tube sheets (7), and the two tube sheets (7) are respectively fixedly arranged at the two ends of the cylinder; the heat exchange tube group (3) is plugged into the tube sheets (7); There are two rotating plates (11), which are respectively arranged at the two ends of the cylinder, and the tube plate (7) and the rotating plate (11) located on the same side of the cylinder are located in the same plane, the outer ring side wall of the rotating plate (11) is slidably connected to the cylinder, and the inner ring side wall of the rotating plate (11) is slidably connected to the tube plate (7).

5. The heat exchange device for a heating system according to claim 4, characterized in that: The heat exchange tube group (3) comprises a plurality of heat exchange tubes, and both ends of each of the heat exchange tubes penetrate the tube sheet (7). The scraper (6) is slidably arranged on the tube bodies of the plurality of heat exchange tubes, and the scraper (6) comprises: The plate body is circular, and the circumferential side wall of the plate body is in contact with the side edge of the curved plate (4) close to the heat exchange tube group (3); A plurality of mounting holes (12) are provided, and the plurality of mounting holes (12) correspond one-to-one to the heat exchange tubes of the heat exchange tube group (3); the diameter of the mounting hole (12) is larger than the diameter of the heat exchange tube, and the mounting hole (12) is arranged concentrically with the heat exchange tube.

6. The heat exchange device for a heating system according to claim 5, characterized in that: The scraper (6) further comprises: A cleaning ring (13) is installed in the installation hole (12), and a side wall of the cleaning ring (13) away from the installation hole (12) abuts against the outer wall of the heat exchange tube.

7. The heat exchange device for a heating system according to claim 6, characterized in that: The cleaning circle (13) comprises: A fixing ring, the fixing ring being fixedly connected to the mounting hole (12); A rubber ring (14) is fixedly arranged in the fixing ring, and one end of the rubber ring (14) away from the fixing ring contacts the outer wall of the heat exchange tube group (3). The rubber ring (14) is used to clean the outer wall of the heat exchange tube.

8. The heat exchange device for a heating system according to claim 4, characterized in that: Sealing rings (8) are provided at the connection between the rotating plate (11) and the tube plate (7) and at the connection between the rotating plate (11) and the cylinder.

9. The heat exchange device for a heating system according to claim 4, characterized in that: The rotating plate (11) is provided with a handle (9) on one side located outside the cylinder.

10. The heat exchange device for a heating system according to claim 4, characterized in that: The housing (1) further comprises: The cover bodies (2) are provided with two, and the two cover bodies (2) are respectively fixedly arranged at the two ends of the cylinder, and the cover bodies (2) are connected to the ends of the cylinder to form a cavity, and the heat exchange tube group (3) is connected to the cavity.

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