A descaling structure for ground source heat pump pipeline
By designing a ground source heat pump pipeline descaling structure including scraping components and universal joints, the problem of difficulty in removing scale at the elbow is solved, and an efficient and safe descaling effect is achieved.
Patent Information
- Application Number
- CN202421403035.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-19
AI Technical Summary
After long-term use of ground source heat pump pipes, especially at elbows, it is easy to accumulate stubborn scale, and traditional water-flushing and descaling methods are difficult to effectively remove.
A descaling structure of ground source heat pump pipe is designed, including the front housing, the rear housing and the universal joint. The front housing is equipped with scraping components, including a turntable, a disc wire, a fixing block, a scraper, etc. Through the cooperation of the universal joint and an electric telescopic rod, effective scraping of scale at the elbow is achieved.
The descaling structure can move forward freely at the elbow, efficiently scrape off scale, improve descaling efficiency, and assist in cleaning through nozzles to prevent equipment damage and protect the inner wall of the pipe.
Smart Images
Figure CN222703545U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline cleaning, in particular to a descaling structure for a ground source heat pump pipeline. Background Art
[0002] The ground source heat pump system is mainly composed of underground circulation pipes, underground reservoirs or wells, indoor and outdoor units, etc. It uses the fact that underground temperature is more stable than air temperature to heat or cool the refrigerant in the indoor and outdoor units in the underground heat exchanger through the circulation pipes, thereby achieving heating or cooling.
[0003] After long-term use, a lot of scale will accumulate on the inner wall of the ground source heat pump pipeline, which not only affects the internal water circulation, but also greatly reduces the heat transfer effect. The traditional descaling method is to pour detergent into the pipeline to decompose the scale and then flush the pipeline with high-pressure water. However, the ground source heat pump pipeline is a serpentine pipe, so more scale will accumulate at the elbow due to precipitation, and the elbow will slow down the water flow rate. Therefore, ordinary water flushing cannot easily remove the stubborn scale accumulated at the elbow. Utility Model Content
[0004] The utility model aims to provide a descaling structure for a ground source heat pump pipeline to solve the problems raised in the above-mentioned background technology.
[0005] In order to solve the above technical problems, the utility model provides a descaling structure for a ground source heat pump pipeline, comprising a front shell and a rear shell behind the front shell, a universal joint is installed between the front shell and the rear shell, a scraping assembly is arranged inside the front shell, the scraping assembly comprises a turntable rotatably connected to the inner arc wall of the front shell, a coil wire is arranged on a side wall of the turntable away from the rear shell, three fixed blocks distributed in a circular array are arranged on a side wall of the turntable away from the rear shell, a slide groove 1 that fits with the coil wire is opened on one side wall of the three fixed blocks close to the turntable, a channel 1 that penetrates the side wall of the front shell is opened at the positions of the three fixed blocks on the outer arc wall of the front shell, a fixing rod is fixedly connected to a side wall of the three fixed blocks away from the center of the turntable, the fixing rod penetrates the channel 1, and a scraper 2 is installed on one end of the fixing rod away from the fixed block.
[0006] Furthermore, the universal joint includes a universal yoke fork 1 fixedly connected to the center of a side wall of the turntable close to the rear shell, a universal yoke fork 2 is rotatably connected to the center of a side wall of the rear shell close to the front shell, and a cross shaft is rotatably connected between the universal yoke fork 1 and the universal yoke fork 2.
[0007] Furthermore, the universal joint fork 1 is rotatably connected to a side wall of the front shell body close to the rear shell body, and three slide grooves 2 distributed in a circular array are opened on the outer arc wall of the universal joint fork 1 at one end close to the turntable, and three electric telescopic rods distributed in a circular array are fixedly connected to the inner arc wall of the front shell body, and the telescopic ends of the three electric telescopic rods are all arranged toward the universal joint fork 1, and the three electric telescopic rods correspond one by one to the three slide grooves 2.
[0008] Furthermore, an annular water trough is provided on the outer arc wall of the end of the universal joint fork away from the turntable, and the annular water trough is a double-layer structure, the inner layer and the outer layer of the annular water trough are rotatably connected to each other, the inner layer of the annular water trough is fixedly connected to the outer arc wall of the universal joint fork, and the inner layer of the annular water trough is a hollow structure. The turntable and the universal joint fork are both provided with horizontal channels 2 inside and are interconnected, and four channels 3 distributed in a circular array are provided on the outer arc wall of the universal joint fork, and the four channels 3 are connected with the channel 2 inside the universal joint fork and the inner layer of the annular water trough, and a hose is installed at the bottom of the outer layer of the annular water trough.
[0009] Furthermore, a nozzle is installed at the center of a side wall of the front shell away from the rear shell, and the nozzle is connected to channel 2 inside the turntable and channel 2 inside the universal joint fork 1. Three scrapers 1 distributed in a circular array are installed outside the side wall of the front shell away from the rear shell, and the three scrapers 1 are all located outside the nozzle.
[0010] Furthermore, the hose is L-shaped, and the other end of the hose away from the annular water tank passes through the rear shell, and a water inlet pipe is installed at the bottom end of a side wall of the rear shell away from the front shell, and the hose and the water inlet pipe are connected to each other.
[0011] Furthermore, the annular water tank is located outside the front shell, a sealing ring is provided at the connection between the annular water tank and the universal joint fork, and the outer layer of the annular water tank is rotatably connected to a side wall of the front shell close to the rear shell.
[0012] Furthermore, a movable component is installed on the outer arc wall of the front shell body, and the movable component includes three compression spring telescopic rods fixedly connected to the outer arc wall of the front shell body and distributed in a circular array, and the three compression spring telescopic rods are fixedly connected to a C-shaped rod at one end away from the outer arc wall of the front shell body, and the C-shaped rod is rotatably connected to a roller at one end away from the compression spring telescopic rod, and the outer arc wall of the rear shell body is installed with the same number of movable components with the same structure as those on the outer arc wall of the front shell body, wherein the three rollers located on the outer arc wall of the front shell body are deflected at a certain angle toward the nozzle direction.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. Through the scraping assembly and universal joint, the machine can move forward freely even when facing a bend, so as to scrape off the scale accumulated at the bend. At the same time, the nozzle on the front side wall of the front shell can spray out detergent to assist in cleaning, further improving the descaling efficiency. When facing thick scale, the length of the three scrapers can be adjusted to scrape off the thick scale layer by layer to prevent damage to the equipment;
[0015] 2. The roller on the front shell allows the blade to rotate and move forward during the scraping process. Since the roller on the front shell is deflected at a certain angle toward the nozzle, the blade will not hit the inner wall of the pipe when cleaning the curve, that is, the cross section of the movement trajectory of the scraper 2 is always parallel to the cross section of the pipe, which improves the removal effect of scale in the curve and better protects the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of a descaling structure for a ground source heat pump pipeline;
[0017] Figure 2 for Figure 1 Schematic diagram of the internal structure at A in the middle;
[0018] Figure 3 for Figure 2 Schematic diagram of the structure at B in the middle;
[0019] Figure 4 It is a structural schematic diagram of a scraping component in a descaling structure for a ground source heat pump pipeline;
[0020] Figure 5 A cross-sectional view of the internal structure of a front shell in a descaling structure for a ground source heat pump pipeline;
[0021] Figure 6 The present invention is a schematic structural diagram of a descaling structure for a ground source heat pump pipeline from a rear perspective.
[0022] In the figure:
[0023] 10. Front housing; 11. Rear housing; 12. Roller; 13. C-shaped rod; 14. Compression spring telescopic rod; 15. Nozzle; 16. Scraper 1;
[0024] 20. Scraping assembly; 21. Fixed rod; 22. Scraper 2; 23. Fixed block; 24. Coil wire; 25. Turntable;
[0025] 30. Electric telescopic rod; 31. Annular water tank; 32. Water inlet pipe; 33. Hose;
[0026] 40. Universal joint; 41. Universal joint fork 1; 42. Universal joint fork 2; 43. Cross shaft. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in 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 in 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.
[0028] See also Figure 1-6 , the utility model provides a technical solution:
[0029] See also Figure 1 and Figure 4 As shown, a descaling structure for a ground source heat pump pipeline includes a front shell 10 and a rear shell 11 behind the front shell 10, a universal joint 40 is installed between the front shell 10 and the rear shell 11, a scraping assembly 20 is arranged inside the front shell 10, and the scraping assembly 20 includes a turntable 25 rotatably connected to the inner arc wall of the front shell 10, a coil wire 24 is arranged on a side wall of the turntable 25 away from the rear shell 11, and three fixing blocks 23 distributed in a ring array are arranged on a side wall of the turntable 25 away from the rear shell 11, and the three fixing blocks 23 are close to each other. One side wall of the turntable 25 is provided with a slide groove that fits with the coil wire 24, and a channel that penetrates the side wall of the front shell 10 is provided at the position corresponding to the three fixed blocks 23 on the outer arc wall of the front shell 10. A fixing rod 21 is fixedly connected to one side wall away from the center of the turntable 25 of the three fixed blocks 23, and the fixing rod 21 penetrates the channel 1. A scraper 22 is installed at one end of the fixing rod 21 away from the fixing block 23, and a side wall of the three fixed blocks 23 away from the turntable 25 abuts against the inner side wall of one end of the front shell 10 away from the rear shell 11.
[0030] See also Figure 1 , Figure 2 and Figure 3 As shown, a descaling structure for a ground source heat pump pipeline, the universal joint 40 includes a universal yoke 41 fixedly connected to the center of a side wall of a turntable 25 close to a rear shell 11, a universal yoke 42 is rotatably connected to the center of a side wall of the rear shell 11 close to a front shell 10, a cross shaft 43 is rotatably connected between the universal yoke 41 and the universal yoke 42, and a driving source for driving the universal joint 40 to rotate is located inside the rear shell 11.
[0031] See also Figure 2 and Figure 3As shown, a descaling structure for a ground source heat pump pipeline, the universal joint fork 41 is rotatably connected to a side wall of the front shell body 10 close to the rear shell body 11, and three slide grooves 2 distributed in a circular array are opened on the outer arc wall of one end of the universal joint fork 41 close to the turntable 25, and three electric telescopic rods 30 distributed in a circular array are fixedly connected to the inner arc wall of the front shell body 10, and the telescopic ends of the three electric telescopic rods 30 are all arranged toward the universal joint fork 41, and the three electric telescopic rods 30 correspond to the three slide grooves 2 one by one. When the three electric telescopic rods 30 are extended, they can be inserted into the corresponding slide grooves 2, and at this time the universal joint 40 can drive the front shell body 10 to rotate as a whole.
[0032] See also Figure 2 and Figure 5 As shown, a descaling structure for a ground source heat pump pipeline is provided, an annular water trough 31 is provided on the outer arc wall of the end of the universal joint fork 41 away from the turntable 25, the annular water trough 31 is a double-layer structure, the inner layer and the outer layer of the annular water trough 31 are rotatably connected to each other, the inner layer of the annular water trough 31 is fixedly connected to the outer arc wall of the universal joint fork 41, the inner layer of the annular water trough 31 is a hollow structure, the turntable 25 and the universal joint fork 41 are both provided with horizontal channels 2 and are interconnected, four channels 3 distributed in a circular array are provided on the outer arc wall of the universal joint fork 41, the four channels 3 are connected with the channel 2 inside the universal joint fork 41 and are connected with the inner layer of the annular water trough 31, a hose 33 is installed at the bottom of the outer layer of the annular water trough 31, the outer layer of the annular water trough 31 is not in contact with the front shell 10, the inner layer of the annular water trough 31 is a hollow structure, and when the hose 33 supplies water, the rotation of the inner layer of the annular water trough 31 will not affect the water flow entering.
[0033] See also Figure 1 As shown, a descaling structure for a ground source heat pump pipeline is provided, wherein a nozzle 15 is installed at the center of a side wall of the front shell 10 away from the rear shell 11, the nozzle 15 is connected to a channel 2 inside a turntable 25 and a channel 2 inside a universal joint fork 41, and three scrapers 16 distributed in a circular array are installed outside a side wall of the front shell 10 away from the rear shell 11, the three scrapers 16 are all located outside the nozzle 15, and the three scrapers 16 can help break up thicker scale inside the pipeline to prevent the scale from hindering the advancement of the device.
[0034] See also Figure 6 As shown, a descaling structure for a ground source heat pump pipeline is provided, wherein the hose 33 is L-shaped, and the other end of the hose 33 away from the annular water tank 31 passes through the rear shell 11, and a water inlet pipe 32 is installed at the bottom end of a side wall of the rear shell 11 away from the front shell 10, and the hose 33 and the water inlet pipe 32 are interconnected, and the hose 33 is communicated with the water inlet pipe 32, and the water inlet pipe 32 passes through the rear shell 11.
[0035] See also Figure 2 and Figure 3As shown, a descaling structure for a ground source heat pump pipeline, the annular water tank 31 is located outside the front shell 10, a sealing ring is provided at the connection between the annular water tank 31 and the universal joint fork 41, the outer layer of the annular water tank 31 is rotatably connected to a side wall of the front shell 10 close to the rear shell 11, and the sealing ring prevents water from flowing out.
[0036] See also Figure 1 As shown, a descaling structure for a ground source heat pump pipeline is provided, wherein a moving component is installed on the outer arc wall of the front shell body 10, and the moving component includes three compression spring telescopic rods 14 fixedly connected to the outer arc wall of the front shell body 10 and distributed in a circular array, and one end of the three compression spring telescopic rods 14 away from the outer arc wall of the front shell body 10 is fixedly connected to a C-shaped rod 13, and one end of the C-shaped rod 13 away from the compression spring telescopic rod 14 is rotatably connected to a roller 12, and the outer arc wall of the rear shell body 11 is provided with the same number of moving components with the same structure as those on the outer arc wall of the front shell body 10, wherein the three rollers 12 located on the outer arc wall of the front shell body 10 are all deflected at a certain angle toward the direction of the nozzle 15, and the moving component on the outer arc wall of the front shell body 10 enables the device to rotate and move forward at the same time during descaling, can adapt to descaling in curves, and prevent the scraper 22 from hitting the pipe wall and causing unnecessary losses.
[0037] Working principle:
[0038] Step 1: First, drain the sewage in the pipe, and then place the device at the pipe mouth. Due to the compression spring telescopic rod 14 in the moving component, it can enter the pipes of different diameters for descaling. After the device enters the pipe, the three electric telescopic rods 30 shrink. At this time, the motor inside the rear shell 11 controls the universal joint 40 to rotate to drive the turntable 25 to rotate. The rotation of the turntable 25 drives the wire 24 to rotate. When the wire 24 rotates, the three fixed blocks 23 can adjust the spacing to control the extension length of the fixed rod 21, that is, the movement trajectory of the scraper 22 when it rotates is controlled and it fits with the inner wall of the pipe.
[0039] Step 2: After the distance adjustment is completed, the three electric telescopic rods 30 are extended. When the universal joint 40 rotates, the telescopic ends of the three electric telescopic rods 30 are inserted into the corresponding slide grooves 2. At this time, the universal joint 40 drives the front shell 10 and the scraping assembly 20 to rotate as a whole. Due to the synchronous rotation of the turntable 25 and the front shell 10, the front shell 10 drives the three fixed blocks 23 to rotate, offsetting the influence of the rotation of the turntable 25 and the wire 24. Therefore, the extended length of the fixed rod 21 will not change, and the cleaning operation can be started at this time.
[0040] Step three: Since the roller 12 of the three movable components on the outer arc wall of the front shell 10 is deflected toward the nozzle 15 by a certain distance, when the front shell 10 rotates, the device is driven forward as a whole under the action of the movable components. The three scrapers 16 on the surface of the front shell 10 can break the obstacles in front to prevent the accumulated dirt from blocking the forward route. When turning a bend, due to the three movable components on the outer arc wall of the front shell 10, the scraper 2 22 will not directly collide with the inner wall of the pipe when moving forward at the bend, thereby avoiding damage to the pipe and equipment. During descaling, water or detergent can be injected into the annular water tank 31 through the water inlet pipe 32 and the hose 33. After the water or detergent flows into the annular water tank 31, it will flow from channel three into channel two and then flow to the nozzle 15. The nozzle 15 will spray the delivered water or detergent to assist the descaling operation.
[0041] Step 4: After descaling is completed, the device is drilled out from the outlet of the pipe, the water pipe is removed from the water inlet pipe 32 and then the water pipe is taken out, and then the inner wall of the pipe is flushed with clean water, and the dirt at the bend can be easily flushed out.
Claims
1. A descaling structure for a ground source heat pump pipeline, comprising a front shell (10) and a rear shell (11) behind the front shell (10), a universal joint (40) being installed between the front shell (10) and the rear shell (11), a scraping assembly (20) being provided inside the front shell (10), characterized in that: The scraping assembly (20) comprises a rotating disk (25) rotatably connected to the inner arc wall of the front shell (10); a coil wire (24) is provided on a side wall of the rotating disk (25) away from the rear shell (11); three fixed blocks (23) distributed in a ring array are provided on a side wall of the rotating disk (25) away from the rear shell (11); a sliding groove (1) is provided on a side wall of the three fixed blocks (23) close to the rotating disk (25) and matches with the coil wire (24); a channel (1) is provided on the outer arc wall of the front shell (10) at positions corresponding to the three fixed blocks (23) and penetrating the side wall of the front shell (10); a fixed rod (21) is fixedly connected to a side wall of the three fixed blocks (23) away from the center of the rotating disk (25); the fixed rod (21) penetrates the channel (1); and a scraper (22) is installed on one end of the fixed rod (21) away from the fixed block (23).
2. A descaling structure for a ground source heat pump pipeline according to claim 1, characterized in that: The universal joint (40) comprises a universal yoke 1 (41) fixedly connected to the center of a side wall of the turntable (25) close to the rear housing (11); a universal yoke 2 (42) is rotatably connected to the center of a side wall of the rear housing (11) close to the front housing (10); and a cross shaft (43) is rotatably connected between the universal yoke 1 (41) and the universal yoke 2 (42).
3. A descaling structure for a ground source heat pump pipeline as claimed in claim 2, characterized in that: The universal joint fork 1 (41) is rotatably connected to a side wall of the front housing (10) close to the rear housing (11); three slide grooves 2 distributed in a ring array are opened on the outer arc wall of one end of the universal joint fork 1 (41) close to the turntable (25); three electric telescopic rods (30) distributed in a ring array are fixedly connected to the inner arc wall of the front housing (10); the telescopic ends of the three electric telescopic rods (30) are all arranged toward the universal joint fork 1 (41); and the three electric telescopic rods (30) correspond to the three slide grooves 2 one by one.
4. The descaling structure for a ground source heat pump pipeline according to claim 2, characterized in that: An annular water trough (31) is provided on the outer arc wall of the end of the universal joint fork (41) away from the turntable (25). The annular water trough (31) is a double-layer structure. The inner layer and the outer layer of the annular water trough (31) are rotatably connected to each other. The inner layer of the annular water trough (31) is fixedly connected to the outer arc wall of the universal joint fork (41). The inner layer of the annular water trough (31) is a hollow structure. The turntable (25) and the universal joint fork (41) are both provided with horizontal channels 2 inside and are interconnected. The outer arc wall of the universal joint fork (41) is provided with four channels 3 distributed in a circular array. The four channels 3 are connected with the channel 2 inside the universal joint fork (41) and are connected with the inner layer of the annular water trough (31). A hose (33) is installed at the bottom of the outer layer of the annular water trough (31).
5. The descaling structure for a ground source heat pump pipeline according to claim 4, characterized in that: A nozzle (15) is installed at the center of a side wall of the front shell (10) away from the rear shell (11), and the nozzle (15) is connected to a second channel inside the turntable (25) and a second channel inside the universal joint fork (41). Three scrapers (16) distributed in a ring array are installed outside the side wall of the front shell (10) away from the rear shell (11), and the three scrapers (16) are all located outside the nozzle (15).
6. A descaling structure for a ground source heat pump pipeline as claimed in claim 4, characterized in that: The hose (33) is L-shaped, and the other end of the hose (33) away from the annular water tank (31) passes through the rear shell (11). A water inlet pipe (32) is installed at the bottom end of a side wall of the rear shell (11) away from the front shell (10), and the hose (33) and the water inlet pipe (32) are connected to each other.
7. The descaling structure for a ground source heat pump pipeline according to claim 4, characterized in that: The annular water groove (31) is located outside the front housing (10), and a sealing ring is provided at the connection between the annular water groove (31) and the universal joint fork (41). The outer layer of the annular water groove (31) is rotatably connected to a side wall of the front housing (10) close to the rear housing (11).
8. The descaling structure for a ground source heat pump pipeline according to claim 1, characterized in that: A moving assembly is installed on the outer arc wall of the front shell (10), and the moving assembly comprises three compression spring telescopic rods (14) fixedly connected to the outer arc wall of the front shell (10) and distributed in a ring array, one end of the three compression spring telescopic rods (14) away from the outer arc wall of the front shell (10) is fixedly connected to a C-shaped rod (13), and one end of the C-shaped rod (13) away from the compression spring telescopic rod (14) is rotatably connected to a roller (12), and the outer arc wall of the rear shell (11) is installed with the same number of moving assemblies with the same structure as those on the outer arc wall of the front shell (10), wherein the three rollers (12) located on the outer arc wall of the front shell (10) are all deflected by a certain angle toward the direction of the nozzle (15).