Filtering device for heat supply pipe network system

Abstract

The utility model relates to the field of heat supply pipe network systems, in particular to a filtering device for a heat supply pipe network system. The utility model provides a filter device for a heat supply pipe network system, which comprises a fixing ring and connecting plates, the connecting plates are symmetrically arranged on the inner side of the fixing ring, the filter device further comprises a filter screen, the filter screen is clamped between the two connecting plates, and the filter screen adopts a double-layer structural design. The filter screen adopts a double-layer structural design, and when water is introduced for filtering, the first layer can intercept larger scale, and the second layer can intercept finer scale, so that a double-filtering effect can be achieved, and the filtering efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of heating pipe network systems, in particular to a filtering device used in heating pipe network systems. Background Art

[0002] In northern cities of my country, the central heating system is a ubiquitous facility that relies mainly on boiler rooms or thermal power plants to deliver heat to users. In the user's home, this heat is usually delivered through pipes laid under the floor. Currently, the most commonly used heating medium is hot water. In autumn and winter, due to the drop in temperature, northern cities need long-term and continuous heating. However, in the warm summer, this heating process will be suspended for a period of time.

[0003] During the one-year use of the heating system, a considerable amount of scale will accumulate in its internal pipes due to the circulation of water. At the same time, the hot water supplied may also contain a variety of impurities, which will eventually be deposited inside the pipes.

[0004] When the heating system supplies water and flushes down the scale and impurities inside the pipes, if the scale and impurities are not collected and processed in time, the scale and impurities will continue to remain in the pipes and reattach to the inside of the pipes, that is, the scale cleaning effect on the inner wall of the pipes is poor, which can easily affect the heating effect of the overall heating system.

[0005] Therefore, it is necessary to design a filtering device for a heating pipe network system. Utility Model Content

[0006] In order to overcome the disadvantage of inconvenient filtering, the utility model provides a filtering device for a heating pipe network system.

[0007] A filtering device for a heating pipe network system comprises a fixing ring and a connecting plate. The connecting plate is symmetrically arranged inside the fixing ring. The filtering device also comprises a filtering screen. The filtering screen is clamped between two connecting plates. The filtering screen adopts a double-layer structure design.

[0008] Furthermore, it also includes a clamping block and a connecting spring. Clamping grooves are provided on both sides of the filter screen. The clamping connection between the filter screen and the connecting plate is fixed by the clamping block. The clamping blocks are symmetrically connected to the top of the adjacent connecting plate with connecting springs.

[0009] Furthermore, it also includes a fixed rod, a sliding ring and a reset spring. A fixed rod is provided on the rear side of the connecting plate, a sliding ring is slidably provided between the two fixed rods, and a reset spring is symmetrically connected between the sliding ring and the ends of the two fixed rods.

[0010] Furthermore, it also includes a support plate and a support spring. The outer side of the fixing ring is evenly and elastically provided with a support plate through the support spring along the circumferential direction, and the front end of the support plate is provided with an inclined surface.

[0011] Furthermore, it also includes a scraper and bolts, and the front side of the fixing ring is symmetrically mounted with the scraper through the bolts.

[0012] Furthermore, a protruding structure is provided on the side of the sliding ring facing the filter screen.

[0013] Furthermore, the front side of the scraper is designed to be sharp.

[0014] Furthermore, the number of the supporting plates is not less than ten.

[0015] The beneficial effects and significant improvements of the utility model are:

[0016] The filter screen of the utility model adopts a double-layer structure design. When filtering water, the first layer can intercept larger scale and the second layer can intercept finer scale, thus achieving a double filtering effect and improving the filtering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the scraper and bolts of the utility model.

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the components such as the connecting plate, the clamping block and the fixing rod of the utility model.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the filter screen and the card slot of the utility model.

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the components such as the fixing rod, the sliding ring and the return spring of the utility model.

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the support plate and the support spring of the utility model.

[0023] In the above figures: 1: fixing ring, 2: connecting plate, 3: filter screen, 31: slot, 4: block, 5: connecting spring, 6: fixing rod, 7: sliding ring, 8: return spring, 9: support plate, 10: support spring, 11: scraper, 12: bolt. DETAILED DESCRIPTION

[0024] Reference to an embodiment herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] Example: A filtering device for a heating pipe network system, please see Figures 1 to 6 , including a fixing ring 1, a connecting plate 2, a filter 3, a block 4, a connecting spring 5, a fixing rod 6, a sliding ring 7, a reset spring 8, a support plate 9, a support spring 10, a scraper 11 and a bolt 12. The fixing ring 1 is annular, and the inner side of the fixing ring 1 is connected to the connecting plate 2 by welding in a left-right symmetrical manner. The filter 3 is clamped between the two connecting plates 2. The filter 3 adopts a double-layer structure design, and the first layer of the filter can intercept larger scale and impurities, and the second layer of the filter can intercept finer scale and impurities. The filter 3 has the same shape as the fixing ring 1, and the filter 3 is located on the fixing ring 1. In the filter screen 3, there are card slots 31 on the left and right sides, and the card connection between the filter screen 3 and the connecting plate 2 is fixed by a card block 4. The card block 4 extends into the card slot 31 of the filter screen 3 to fix the filter screen 3. The card blocks 4 are connected to the top of the adjacent connecting plate 2 in a left-right symmetrical manner with connecting springs 5. The connecting springs 5 ​​are used to reset the card blocks 4. The rear side of the connecting plate 2 is connected with a fixing rod 6. A sliding ring 7 is slidably connected between the two fixing rods 6. The sliding ring 7 is located on the rear side of the filter screen 3, and a protruding structure is provided on the side of the sliding ring 7 facing the filter screen 3. When the sliding ring 7 is reset, it can beat the filter screen 3. The sliding ring 7 and the ends of the two fixed rods 6 are connected with reset springs 8 in a left-right symmetrical manner. The reset springs 8 are all sleeved on the adjacent fixed rods 6. The outer side of the fixed ring 1 is evenly and elastically connected with ten support plates 9 through support springs 10 along the circumferential direction to increase the support area. The support plate 9 is retractable to fit the inside of different pipes. The front end of the support plate 9 extending into the pipe is set as an inclined surface. When the filter device is placed in the pipe, the front end inclined surface of the support plate 9 will first contact the inner wall of the pipe, thereby being squeezed for easy installation. The support spring 10 is compressed. When the filter device leads to the specified position inside the pipe, the support spring 10 will release the pressure to drive the support plate 9 to bounce open, so that the support plate 9 is close to the inner wall of the pipe. Five scrapers 11 are installed on the front side of the fixed ring 1 in an up and down symmetrical manner through bolts 12, so that the scraper 11 can be disassembled. The five scrapers 11 are designed to be evenly spaced. The front side of the scraper 11 is sharp, which is conducive to scraping off larger scale. Under the action of water flow, when the water contains larger scale passing in front of the filter screen 3, the scraper 11 arranged on the fixed ring 1 can scrape off the scale.

[0026] When the filter device is needed, first put the filter device into the heating pipe. Through the ingenious design of the support plate 9 and the support spring 10, when the device enters the pipe, the support plate 9 will be squeezed by the inner wall of the pipe and move inward because the edge of the support plate 9 is a slope, so that the support spring 10 is compressed. When the device reaches the specified position of the pipe, the support spring 10 releases its elastic force, pushing the support plate 9 close to the inner wall of the pipe, thereby stabilizing the position of the device.

[0027] Next, the water flow operation begins. As the water flows, the water will pass through the filter device. At this time, the scraper 11 can effectively cut off larger scale or impurities in the water to prevent these large pieces of matter from clogging the filter screen 3. The filter screen 3 adopts a double-layer structure, the first layer is used to intercept larger particles, and the second layer is responsible for filtering smaller impurities to ensure the purity of the water quality. The filtered water continues to flow along the pipeline.

[0028] Under the continuous action of water flow, the sliding ring 7 will be affected by the water pressure and slide backward along the fixed rod 6, causing the reset spring 8 to be compressed. However, when the filtering work needs to be suspended or the water flow needs to be stopped, the sliding ring 7 is no longer subjected to the thrust of the water pressure. The sliding ring 7 will move forward along the fixed rod 6 under the action of the reset spring 8 and return to the initial position. In this process, since the side of the sliding ring 7 facing the filter screen 3 is designed with a protruding structure, during the reset, the sliding ring 7 can slap the filter screen 3, causing it to vibrate, which helps to clear the blockage on the screen. When the filtering device is not needed, it only needs to be safely removed from the heating pipe. If the filter screen 3 needs to be replaced, the operation is also very simple. First, lift the block 4 upward, and the connecting spring 5 will be compressed. When the block 4 is completely out of the slot 31 on the filter screen 3, the filter screen 3 is no longer fixed. At this time, the old filter screen 3 can be removed and replaced with a new filter screen 3. After the replacement is completed, the block 4 is released, and it is allowed to re-enter the slot 31 on the filter screen 3 under the elastic force of the connecting spring 5, thereby firmly fixing the new filter screen 3. Such a design ensures the efficient operation of the filter device in the heating pipeline, and simplifies the process of maintaining and replacing the filter screen 3.

[0029] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A filtering device for a heating pipe network system, comprising a fixing ring (1) and a connecting plate (2), wherein the connecting plate (2) is symmetrically arranged on the inner side of the fixing ring (1), characterized in that: It also comprises a filter screen (3), the filter screen (3) is clamped between the two connecting plates (2), and the filter screen (3) adopts a double-layer structure design.

2. A filtering device for a heating pipe network system according to claim 1, characterized in that: It also includes a clamping block (4) and a connecting spring (5), and clamping grooves (31) are provided on both sides of the filter screen (3). The clamping connection between the filter screen (3) and the connecting plate (2) is clamped and fixed by the clamping block (4), and the clamping block (4) is symmetrically connected to the top of the adjacent connecting plate (2) with a connecting spring (5).

3. A filtering device for a heating pipe network system according to claim 2, characterized in that: The invention also comprises a fixed rod (6), a sliding ring (7) and a return spring (8). The fixed rod (6) is arranged on the rear side of the connecting plate (2). The sliding ring (7) is slidably arranged between the two fixed rods (6). The return spring (8) is symmetrically connected between the sliding ring (7) and the ends of the two fixed rods (6).

4. A filtering device for a heating pipe network system according to claim 3, characterized in that: It also includes a support plate (9) and a support spring (10). The outer side of the fixing ring (1) is elastically provided with a support plate (9) uniformly along the circumferential direction through the support spring (10), and the front end of the support plate (9) is provided with an inclined surface.

5. A filtering device for a heating pipe network system according to claim 4, characterized in that: It also includes a scraper (11) and a bolt (12), and the scraper (11) is mounted on the front side of the fixing ring (1) in an up-and-down symmetrical manner via the bolt (12).

6. A filtering device for a heating pipe network system according to claim 3, characterized in that: A protruding structure is provided on the side of the sliding ring (7) facing the filter screen (3).

7. A filtering device for a heating pipe network system according to claim 5, characterized in that: The front side of the scraper (11) is designed to be sharp.

8. A filtering device for a heating pipe network system according to claim 4, characterized in that: The number of the supporting plates (9) is not less than ten.

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