Waste heat recovery heat exchange anti-scaling device

Abstract

The utility model discloses a waste heat recovery heat exchange anti-scaling device which comprises a heat exchanger body, a water inlet pipe and a feeding pipe are arranged on the upper end face of the heat exchanger body in a penetrating mode, a water outlet pipe and a discharging pipe are arranged on the lower end face of the heat exchanger body in a penetrating mode, supporting legs are symmetrically arranged at the bottom end of the heat exchanger body, and bottom plates are arranged at the bottom ends of the two supporting legs. A filter seat is arranged on the feeding pipe, a baffle is arranged in the filter seat, material guide plates are rotationally arranged on the upper side and the lower side in the filter seat, filter screens are detachably arranged at the left end and the right end in the filter seat and correspond to the baffle, and fixing seats are arranged on the inner walls of the left end and the right end of the filter seat and correspond to the multiple material guide plates; a scraping plate is slidably arranged in the heat exchanger body, a driving mechanism corresponding to the scraping plate is arranged on the heat exchanger body, impurities are prevented from entering the heat exchanger body through the design of the filter seat, and anti-scaling protection in feeding is achieved.

Description

Technical Field

[0001] This utility model relates to the field of waste heat recovery and scale prevention technology, and more specifically, it relates to a waste heat recovery heat exchange and scale prevention device. Background Technology

[0002] In industrial production processes, heat exchangers are generally used to recover waste heat. A heat exchanger is a device that transfers some of the heat from a hot fluid to a cold fluid, bringing the fluid temperature to the specified parameters of the process flow. It is also called a heat exchanger. However, existing heat exchangers often have a large amount of impurities remaining inside the liquid entering them. The feed end lacks a suitable filtration mechanism, and the replacement of the filtration mechanism requires shutdown for maintenance. There is a lack of suitable non-stop maintenance mechanisms. In addition, the heat exchanger lacks a suitable anti-scaling mechanism. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the problems existing in the prior art, this utility model provides a waste heat recovery heat exchange anti-scaling device to solve the technical problem mentioned in the background art that when the liquid entering the heat exchanger is used, a large number of impurities remain inside the heat exchanger and the feed end lacks a suitable filtration mechanism.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waste heat recovery heat exchange anti-scaling device, comprising a heat exchanger body, an inlet pipe and a feed pipe penetrating through the upper end face of the heat exchanger body, an outlet pipe and a discharge pipe penetrating through the lower end face of the heat exchanger body, symmetrically arranged support legs at the bottom end of the heat exchanger body, a base plate at the bottom end of the two support legs, a filter seat on the feed pipe, a baffle inside the filter seat, guide plates rotatably arranged on both the upper and lower sides inside the filter seat, filter screens detachably arranged at both the left and right ends of the filter seat corresponding to the baffles, fixing seats on the inner walls of both the left and right ends of the filter seat corresponding to the multiple guide plates, a scraper slidably arranged inside the heat exchanger body, and a driving mechanism on the heat exchanger body corresponding to the scraper.

[0007] The present invention is further provided with mounting plates at the outer ends of both filter screens, and mounting grooves are provided at both ends of the filter seat corresponding to the mounting plates, so as to facilitate the installation and removal of the filter screens.

[0008] The present invention is further configured such that first mounting holes are symmetrically provided on both mounting plates, and second mounting holes are provided on the inner walls of both mounting grooves corresponding to the first mounting holes. The first mounting holes and the second mounting holes are connected by bolts to lock the filter screen in place.

[0009] The present invention is further configured such that a support plate is provided inside the filter seat for each of the two filter screens, thereby strengthening the support for the filter screens.

[0010] The present invention is further configured such that each of the two guide plates is provided with a rotating shaft, both of the rotating shafts are rotatably arranged relative to the filter seat, both of the rotating shafts extend forward and penetrate the filter seat, an adjustment motor is connected to the front end of the upper rotating shaft, and a transmission mechanism is provided between the two rotating shafts to facilitate the rotation adjustment of the guide plates.

[0011] The present invention is further configured such that the transmission mechanism includes a first gear and a second gear, the first gear is mounted on the upper rotating shaft, and the second gear is mounted on the lower rotating shaft, the first gear and the second gear being meshed to achieve stable transmission.

[0012] The present invention is further configured such that the driving mechanism includes a driving shaft and a driving motor, the driving shaft is rotatably installed inside the heat exchanger body, the driving shaft and the scraper are threadedly connected, and the driving motor is connected to the outer end of the driving shaft to drive the scraper.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a waste heat recovery heat exchange anti-scaling device, which has the following beneficial effects:

[0015] 1. Through the design of the filter seat, the filter seat is set at the feed pipe position. The filter screen inside the filter seat filters the liquid used for heat energy recovery entering the heat exchanger body, preventing impurities from entering and achieving anti-scaling protection for the feed.

[0016] 2. Through the design of the guide seat, the guide seat is rotated relative to the filter seat. The motor drives the rotating shaft, and the rotating shaft is connected by a transmission mechanism, which facilitates the rotation and adjustment of the guide seat, the use and adjustment of the filter screens on both sides, and the maintenance without stopping the operation.

[0017] 3. Through the design of the scraper, the scraper is slidably set relative to the inner wall of the heat exchanger body and the heat exchange tube. The drive motor drives the drive shaft, which rotates in both directions. The drive shaft and the scraper are threaded together, which facilitates the scraper to move back and forth to clean the inside and achieve anti-scaling protection inside the heat exchanger body. Attached Figure Description

[0018] Figure 1 A schematic diagram of the preferred overall structure of a waste heat recovery heat exchange and anti-scaling device;

[0019] Figure 2 A cross-sectional view of the internal structure of a preferred heat exchanger body for a waste heat recovery heat exchange and anti-scaling device.

[0020] Figure 3 A schematic diagram of the overall structure of a preferred filter base for a waste heat recovery heat exchange and anti-scaling device;

[0021] Figure 4 A cross-sectional view of the internal structure of a preferred filter seat for a waste heat recovery heat exchange and anti-scaling device;

[0022] Figure 5 A schematic diagram of the preferred structure of a filter screen and mounting plate for a waste heat recovery heat exchange and anti-scaling device.

[0023] In the diagram: 1. Heat exchanger body; 2. Inlet pipe; 3. Feed pipe; 4. Outlet pipe; 5. Discharge pipe; 6. Support leg; 7. Base plate; 8. Filter seat; 9. Baffle; 10. Guide plate; 11. Filter screen; 12. Fixed seat; 13. Scraper; 14. Mounting plate; 15. Mounting groove; 16. First mounting hole; 17. Second mounting hole; 18. Support plate; 19. Rotating shaft; 20. Adjusting motor; 21. First gear; 22. Second gear; 23. Drive shaft; 24. Drive motor. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0026] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0027] Please see Figures 1-5A waste heat recovery heat exchange and anti-scaling device includes a heat exchanger body 1. A water inlet pipe 2 and a feed pipe 3 are provided through the upper end face of the heat exchanger body 1. A water outlet pipe 4 and a feed outlet pipe 5 are provided through the lower end face of the heat exchanger body 1. Support legs 6 are symmetrically provided at the bottom end of the heat exchanger body 1. A base plate 7 is provided at the bottom end of the two support legs 6. A filter seat 8 is provided on the feed pipe 3. A baffle 9 is provided inside the filter seat 8. Guide plates 10 are rotatably provided on both the upper and lower sides inside the filter seat 8. Filter screens 11 are detachably provided on both the left and right ends of the filter seat 8 corresponding to the baffle 9. Fixing seats 12 are provided on the inner walls of both the left and right ends of the filter seat 8 corresponding to multiple guide plates 10. A scraper 13 is slidably provided inside the heat exchanger body 1. A driving mechanism is provided on the heat exchanger body 1 corresponding to the scraper 13.

[0028] In this embodiment, the guide plate 10 is rotated relative to the filter seat 8 for adjustment. The two guide plates 10 are rotated to the corresponding side. The guide plate 10 and the baffle 9 cooperate to separate the filter seat 8 and filter the liquid entering through the feed pipe 3.

[0029] More specifically, the drive mechanism drives the reciprocating motion of the scraper 13 to clean the inner wall and heat exchange tubes.

[0030] Please see Figure 1 , Figure 3 , Figure 4 and Figure 5 As one embodiment of the filter screen 11: each of the two filter screens 11 has a mounting plate 14 on its outer side, and the left and right ends of the filter base 8 have mounting grooves 15 corresponding to the mounting plates 14. Each of the two mounting plates 14 has a first mounting hole 16 symmetrically opened, and the inner walls of the two mounting grooves 15 have a second mounting hole 17 corresponding to the first mounting hole 16. The first mounting hole 16 and the second mounting hole 17 are connected by bolts, and the filter base 8 has a support plate 18 corresponding to each of the two filter screens 11 inside.

[0031] Specifically, the unused filter screen 11 is disassembled and replaced. The bolts between the first mounting hole 16 and the second mounting hole 17 are removed. The filter screen 11 with the mounting plate 14 is disassembled. The new filter screen 11 is installed in the mounting groove 15. The first mounting clip hole and the second mounting hole 17 are aligned. The bolts are passed through and tightened to fix it.

[0032] Please see Figure 3 and Figure 4As one embodiment of the guide plate 10: both guide plates 10 are provided with rotating shafts 19, both rotating shafts 19 are rotatably arranged relative to the filter seat 8, both rotating shafts 19 extend forward and penetrate through the filter seat 8, the front end of the upper rotating shaft 19 is connected to an adjusting motor 20, and a transmission mechanism is provided between the two rotating shafts 19. The transmission mechanism includes a first gear 21 and a second gear 22. The first gear 21 is installed on the upper rotating shaft 19, and the second gear 22 is installed on the lower rotating shaft 19. The first gear 21 and the second gear 22 are meshed.

[0033] Specifically, the adjusting motor 20 drives the upper rotating shaft 19 to rotate. The rotating shafts 19 are meshed by the first gear 21 and the second gear 22. The rotating shafts 19 rotate synchronously in opposite directions to adjust the position of the two guide plates 10 and adjust the separation of the filter seat 8.

[0034] Please see Figure 1 and Figure 2 As one embodiment of the drive mechanism: the drive mechanism includes a drive shaft 23 and a drive motor 24. The drive shaft 23 is rotatably installed inside the heat exchanger body 1. The drive shaft 23 is threadedly connected to the scraper 13. The drive motor 24 is connected to the outer end of the drive shaft 23.

[0035] Specifically, the drive motor 24 drives the drive shaft 23 to rotate, and the forward and reverse rotation can be adjusted. The drive shaft 23 and the scraper 13 are threaded together to achieve reciprocating sliding, which scrapes and cleans the inside to prevent scaling.

[0036] In summary, the overall equipment is in use:

[0037] When in the feeding state, the guide plate 10 and the baffle 9 work together to separate the interior of the filter seat 8. The liquid to be recovered for waste heat enters through the feed pipe 3, and the water enters through the water inlet pipe 2. The liquid and water exchange heat. The filter screen 11 inside the filter seat 8 filters the incoming liquid to prevent impurities from entering the heat exchanger.

[0038] When changing to a maintenance state, after prolonged use, if one side of the filter screen 11 is damaged and needs maintenance, start the adjustment motor 20. The adjustment motor 20 drives the rotating shaft 19 to rotate. The rotating shaft 19 is connected by the first gear 21 and the second gear 22 to achieve synchronous rotation adjustment of the guide plate 10. The guide plate 10, the fixed seat 12 and the baffle 9 cooperate to separate the interior of the filter seat 8, and the other side of the filter screen 11 is put into use. The unused side of the filter screen 11 is disassembled and maintained. The bolts between the first mounting hole 16 and the second mounting hole 17 are removed to disassemble and maintain the filter screen 11.

[0039] When in internal cleaning mode, the control device has its own control system, which starts the drive motor 24. The drive motor 24 drives the drive shaft 23 to rotate in both directions. The drive shaft 23 and the scraper 13 are threaded together, so that the scraper 13 slides back and forth inside the heat exchanger to clean the interior and achieve internal anti-scaling protection.

[0040] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A waste heat recovery heat exchange anti-scaling device, comprising a heat exchanger body (1), wherein an inlet pipe (2) and a feed pipe (3) are provided through the upper end face of the heat exchanger body (1), an outlet pipe (4) and a discharge pipe (5) are provided through the lower end face of the heat exchanger body (1), and symmetrical support legs (6) are provided at the bottom end of the heat exchanger body (1), and a base plate (7) is provided at the bottom end of the two support legs (6), characterized in that: The feed pipe (3) is provided with a filter seat (8), the filter seat (8) is provided with a baffle (9) inside, the filter seat (8) is provided with a guide plate (10) on both the upper and lower sides inside, the filter seat (8) is provided with a filter screen (11) detachably on both the left and right ends inside, corresponding to the baffle (9), the filter seat (8) is provided with a fixing seat (12) on both the left and right inner walls corresponding to the multiple guide plates (10), the heat exchanger body (1) is provided with a scraper (13) sliding inside, and the heat exchanger body (1) is provided with a driving mechanism corresponding to the scraper (13).

2. The waste heat recovery heat exchange and anti-scaling device according to claim 1, characterized in that: The outer ends of the two filter screens (11) are provided with mounting plates (14), and the left and right ends of the filter seat (8) are provided with mounting grooves (15) corresponding to the mounting plates (14).

3. The waste heat recovery heat exchange and anti-scaling device according to claim 2, characterized in that: The two mounting plates (14) are symmetrically provided with first mounting holes (16), and the inner walls of the two mounting grooves (15) are provided with second mounting holes (17) corresponding to the first mounting holes (16). The first mounting holes (16) and the second mounting holes (17) are connected by bolts.

4. The waste heat recovery heat exchange and anti-scaling device according to claim 2, characterized in that: The filter base (8) is provided with a support plate (18) corresponding to the two filter screens (11) inside.

5. The waste heat recovery heat exchange and anti-scaling device according to claim 1, characterized in that: Both guide plates (10) are provided with rotating shafts (19), both rotating shafts (19) are rotatably arranged relative to the filter seat (8), both rotating shafts (19) extend forward through the filter seat (8), the front end of the upper rotating shaft (19) is connected to an adjusting motor (20), and a transmission mechanism is provided between the two rotating shafts (19).

6. The waste heat recovery heat exchange and anti-scaling device according to claim 5, characterized in that: The transmission mechanism includes a first gear (21) and a second gear (22). The first gear (21) is mounted on the upper rotating shaft (19), and the second gear (22) is mounted on the lower rotating shaft (19). The first gear (21) and the second gear (22) are meshed together.

7. The waste heat recovery heat exchange and anti-scaling device according to claim 1, characterized in that: The drive mechanism includes a drive shaft (23) and a drive motor (24). The drive shaft (23) is rotatably mounted inside the heat exchanger body (1). The drive shaft (23) and the scraper (13) are threadedly connected. The drive motor (24) is connected to the outer end of the drive shaft (23).

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