Drainage filtering assembly of water-cooled water chiller
By employing a circular filter box and a limiting head design with a compaction mechanism in the water-cooled chiller, the problem of insufficient filter screen filtration accuracy is solved, effectively intercepting fine particulate impurities and ensuring the stable operation of the chiller.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-04-03
AI Technical Summary
The existing water-cooled chiller's filter screen has limited filtration precision, making it difficult to effectively intercept fine particulate impurities, leading to frequent scaling.
It adopts a circular filter box and sealing plate structure, with multiple filter strips inside. The filter strips are pressed and positioned by the limiting head of the compaction mechanism to enhance the filtration accuracy. Combined with the opening and closing design of the sealing plate, it is convenient for the regular replacement and cleaning of the filter strips.
It improves filtration accuracy, effectively intercepts fine particulate impurities, ensures long-term stable operation of water-cooled chillers, and reduces scaling.
Smart Images

Figure CN224080461U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chiller technology, and in particular to a drainage filter component for a water-cooled chiller. Background Technology
[0002] To ensure the stability and operating efficiency of the chiller unit, effective management and maintenance of the chiller unit are required, especially the filtration and discharge of the cooling water inside the chiller unit, in order to avoid corrosion inside the chiller unit. Existing chillers often use a filtration device installed between the chiller's water supply pipe and drain pipe for filtration. The cooling water is filtered and collected by the filter screen inside the filtration device to remove impurities.
[0003] For example, Chinese patent application number CN202220352028.1 discloses an improved magnetic levitation variable frequency chiller unit, which has a filtration device installed above the water supply pipe. The filtration device includes a filter box, connecting pipe, filter screen, connecting ring, and inlet pipe. The filter box is located above the water supply pipe. By installing the filtration device, the chiller unit can filter and collect impurities that may be present in the water, thereby reducing the possibility of the chiller unit's operation being affected by impurities in the water, and thus improving the practicality of the chiller unit. However, the filtration accuracy of the filter screen method is limited, and its interception effect on finer particulate impurities is poor, resulting in frequent scaling in the water-cooled chiller. Utility Model Content
[0004] In view of this, the purpose of this utility model is to propose a drainage filtration component for a water-cooled chiller, so as to solve the technical problem that the existing technology uses a filter screen filtration method, which has limited filtration accuracy and poor interception effect for fine particulate impurities, resulting in frequent scaling in water-cooled chillers.
[0005] To achieve the above objectives, this utility model provides a drainage filtration assembly for a water-cooled chiller, including a water supply pipe and a drain pipe installed on the water-cooled chiller. A filter box is provided between the water supply pipe and the drain pipe via a connecting pipe. The filter box has a circular hollow structure, and an opening is provided at the upper end of the filter box. The drainage filtration assembly further includes:
[0006] A sealing plate, which is openable and closable at the opening;
[0007] The filter strips, at least two of them, are disposed inside the cavity of the filter box;
[0008] A compaction mechanism for pressing and loosening the filter strips.
[0009] Furthermore, one end of the sealing plate is hinged to one side of the opening, and the other end of the sealing plate is engaged with the other end of the opening.
[0010] Furthermore, the compaction mechanism includes;
[0011] A rotating shaft is rotatably mounted on one side of the opening, and one end of the sealing plate is fixedly connected to the rotating shaft;
[0012] A limiting head is provided on the rotating shaft.
[0013] Furthermore, when the sealing plate is in the state of closing the opening, the limiting head is embedded in the filter strip at the upper position.
[0014] Furthermore, when the sealing plate is in the open state, the limiting head disengages from the cavity structure of the filter box.
[0015] Furthermore, there are several connecting pipes, which are evenly distributed circumferentially in the lower part of the filter box and correspond to the filter strips located at the lower position inside the filter box.
[0016] Furthermore, both the water supply pipe and the drain pipe are mounted on the water-cooled chiller via a fixing plate, with the water inlet of the water supply pipe facing upwards and the water outlet of the drain pipe facing downwards.
[0017] Furthermore, the filter strips abut against each other within the cavity of the filter box.
[0018] The beneficial effects of this utility model are as follows: In the water-cooled chiller drainage filter assembly of this utility model, cooling water enters through the inlet of the water supply pipe, then flows sequentially through the connecting pipe, the filter strips inside the filter box, and finally the drain pipe. The cooling water is filtered by the filter strips within the cavity of the filter box along this discharge path. Furthermore, the limiting head in the compaction mechanism can press and position the filter strips within the filter box, ensuring the cooling water flows through the entire filter strip. Compared to existing filter screen filtration methods, this provides higher filtration accuracy and effectively intercepts even finer particulate impurities, guaranteeing the long-term stable operation of the water-cooled chiller. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a schematic diagram showing the opening in the present invention when it is in the open state;
[0022] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle;
[0023] Figure 4 This is a schematic diagram of the internal structure of the filter box in this utility model.
[0024] The diagram is marked as follows:
[0025] 1. Water supply pipe; 2. Drainage pipe; 3. Connecting pipe; 4. Filter box; 5. Opening; 6. Sealing plate; 7. Filter strip; 8. Rotating shaft; 9. Limiting head; 10. Fixing plate. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.
[0027] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0028] An embodiment of this utility model proposes a drainage filtration assembly for a water-cooled chiller, such as... Figure 1-4 As shown, the system includes a water supply pipe 1 and a drain pipe 2 installed on a water-cooled chiller. A filter box 4 is provided between the water supply pipe 1 and the drain pipe 2 via a connecting pipe 3. The filter box 4 has a circular hollow structure and an opening 5 at its upper end. The drain filter assembly also includes:
[0029] Sealing plate 6, which can be opened and closed, is located at opening 5;
[0030] Filter strip 7, there are at least two filter strips 7, and the filter strips 7 are disposed inside the cavity of filter box 4;
[0031] A compaction mechanism used to tighten and loosen the filter strip 7.
[0032] In this embodiment, one end of the sealing plate 6 is hinged to one side of the opening 5, and the other end of the sealing plate 6 is engaged with the other end of the opening 5.
[0033] In this embodiment, the compaction mechanism includes:
[0034] A rotating shaft 8 is rotatably mounted on one side of the opening 5, and one end of the sealing plate 6 is fixedly connected to the rotating shaft 8;
[0035] Limit head 9 is located on the rotating shaft 8.
[0036] In this embodiment, when the sealing plate 6 is in the state of closing the opening 5, the limiting head 9 is embedded in the filter strip 7 at the upper position.
[0037] In this embodiment, when the sealing plate 6 is in the open state of the opening 5, the limiting head 9 disengages from the cavity structure of the filter box 4.
[0038] Working process and principle: In this embodiment, during use, cooling water enters through the inlet of the water supply pipe 1, and then passes through the connecting pipe 3, the filter strip 7 in the filter box 4, and the drain pipe 2 in sequence. Under this discharge path, the cooling water is filtered by the filter strip 7 inside the cavity of the filter box 4. During use, the limiting head 9 in the compaction mechanism can press and position the filter strip 7 in the filter box 4. The cooling water needs to pass through the entire filter strip 7. Compared with the existing filter screen filtration method, it has higher filtration accuracy.
[0039] As for the regular cleaning and replacement of filter strip 7, when the sealing plate 6 is flipped to open the opening 5, the limiting head 9 on the rotating shaft 8 will lift the filter strip 7 located in the upper position inside the opening 5, so that the filter strip 7 located in the upper position can automatically extend out of the opening 5. At the same time, when replacing the filter strip 7, the filter strip 7 located in the lower position can be pushed out of the opening 5, which is convenient and quick.
[0040] In this embodiment, as Figure 1 As shown, there are several connecting pipes 3, which are evenly distributed in a circumferential direction at the bottom of the filter box 4 and correspond to the filter strips 7 located at the bottom inside the filter box 4, thereby increasing the effective filtration area of the cooling water.
[0041] In this embodiment, as Figure 1 As shown, both the water supply pipe 1 and the drain pipe 2 are installed on the water-cooled chiller via the fixing plate 10. The inlet of the water supply pipe 1 faces upward, and the outlet of the drain pipe 2 faces downward.
[0042] In this embodiment, as Figure 4As shown, the filter strips 7 abut against each other inside the cavity of the filter box 4 to prevent loosening due to the impact of the cooling water flow and to ensure the filtration effect.
[0043] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0044] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A water-cooled chiller drainage filter assembly comprising a water supply pipe (1) and a drainage pipe (2) installed on a water-cooled chiller, a filter box (4) being provided between the water supply pipe (1) and the drainage pipe (2) through a connecting pipe (3), characterized in that, The filter box (4) is a circular cavity structure, and an opening (5) is formed at the upper end of the filter box (4); the drainage filter assembly further comprises: a sealing plate (6) which is arranged at the opening (5) and can be opened and closed; a plurality of filter strips (7) which are arranged in the cavity of the filter box (4); a compaction mechanism for compacting and loosening the filter strips (7).
2. The drain filter assembly of claim 1, wherein, One end of the sealing plate (6) is hingedly connected to one side of the opening (5), and the other end of the sealing plate (6) is clamped to the other end of the opening (5).
3. The drain filter assembly of claim 1, wherein, The compaction mechanism comprises: a rotating shaft (8) which is rotatably arranged at one side of the opening (5), and one end of the sealing plate (6) is fixedly connected to the rotating shaft (8); a limiting head (9) which is arranged on the rotating shaft (8).
4. The drain filter assembly of claim 3, wherein, When the sealing plate (6) closes the opening (5), the limiting head (9) is embedded in the filter strip (7) at the upper position.
5. The drain filter assembly of claim 3, wherein, When the sealing plate (6) opens the opening (5), the limiting head (9) is separated from the cavity structure of the filter box (4).
6. The drain filter assembly of claim 1, wherein, A plurality of connecting pipes (3) are evenly distributed around the lower part of the filter box (4) and correspond to the filter strips (7) at the lower position in the filter box (4).
7. The drain filter assembly of claim 1, wherein, The water supply pipe (1) and the drainage pipe (2) are both installed on the water-cooled water cooler through a fixing plate (10), the water inlet of the water supply pipe (1) faces upward, and the water outlet of the drainage pipe (2) faces downward.
8. The drain filter assembly of claim 1, wherein, The filter strips (7) abut against each other in the cavity of the filter box (4).
Citation Information
Patent Citations
Improved magnetic suspension frequency conversion water chilling unit
CN217209910U