Structure of built-in bag type filter of water tank
By incorporating a bag filter structure within the water tank, the energy loss and flow rate reduction issues caused by traditional external filters are resolved, enabling efficient operation and low-cost maintenance of the cooling system.
Patent Information
- Application Number
- CN202520470549.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-18
AI Technical Summary
Traditional external filters cause energy loss and flow rate reduction, especially when filtering in high-pressure areas, which increases system energy consumption and equipment costs.
The filter is installed inside the water tank at the water pump inlet. The filtration process takes place before the water pump through the built-in bag filter structure, which reduces water flow resistance and helps overcome the resistance of the filter media. The design is visible and the quick clamps make it easy to replace the filter bag.
It reduces system pressure loss and flow attenuation, improves cooling efficiency and equipment operational stability, reduces energy consumption and equipment costs, and simplifies maintenance procedures.
Smart Images

Figure CN223901363U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of circulating water filtration, and particularly relates to a structure of a water tank built-in bag type filter. BACKGROUND
[0002] In an industrial cooling system, a water tank is a core unit for storing and circulating a cooling medium, and the cleanliness of water quality in the water tank directly affects the working efficiency and service life of a water pump and downstream heat exchange equipment.
[0003] A traditional filtration system usually adopts an external design, installs a filter at a water outlet of a water pump, and realizes purification by intercepting particulate matters in water flow. Although this layout can complete a basic filtration function, the following significant technical bottlenecks exist:
[0004] 1. Energy consumption contradiction
[0005] When the filter is placed in a high-pressure area of the water pump outlet, the water flow needs to overcome the resistance of filter material, resulting in significant pressure loss of the system. To compensate for such loss, the water pump needs to additionally increase driving power, causing long-term operation energy consumption to increase, which seriously restricts the energy efficiency performance of the system.
[0006] 2. Flow attenuation effect
[0007] High-pressure side filtration leads to a decrease in effective output flow, and especially in the filter core clogging stage, the flow attenuation phenomenon is intensified, which forces the system to be configured with an oversized water pump or to additionally add a pressure stabilizing device, significantly increasing equipment cost. INVENTION CONTENTS
[0008] The utility model provides a structure of a water tank built-in bag type filter, which can avoid cooling system pressure and flow loss and improve cooling efficiency.
[0009] The utility model can be implemented through the following technical solutions:
[0010] A structure of a water tank built-in bag type filter, comprising:
[0011] A water tank having a water tank water inlet and a water tank water outlet, and an installation cavity being further provided in the water tank, the installation cavity being communicated with the water tank water inlet and the water tank water outlet;
[0012] A water pump being arranged at the water tank water outlet and forming a water storage space with the installation cavity, and a water inlet end of the water pump being communicated with the water storage space;
[0013] A filter being arranged in the installation cavity, a water inlet end of the filter being directed to the water tank water inlet, and a water outlet end of the filter being communicated with the water storage space, cooling water entering the water tank water inlet flowing into the water storage space after being filtered by the filter, and being outputted outward by the water pump.
[0014] As a further improvement of the utility model, the water inlet of the water tank is located at the side of the water tank and is close to the inlet of the filter.
[0015] As a further improvement of the utility model, the side of the water tank is further provided with a cleaning port, and the cleaning port is close to the inlet of the filter.
[0016] As a further improvement of the utility model, a cover plate is arranged on the cleaning port, and the cleaning port is opened or closed through the cover plate.
[0017] As a further improvement of the utility model, the filter comprises a filter basket and a filter bag, the filter basket is arranged in the mounting cavity, and the filter bag is replaceably arranged in the filter basket.
[0018] As a further improvement of the utility model, a plurality of water passing holes are formed in the circumferential wall of the filter basket, and the inner cavity of the filter basket is communicated with the water storage space through the water passing holes.
[0019] As a further improvement of the utility model, the filter further comprises a water inlet top cover, which is arranged in the mounting cavity and is located at the top of the filter basket, and the filter bag is pressed on the filter basket through the water inlet top cover.
[0020] As a further improvement of the utility model, a top cover water inlet is arranged on the water inlet top cover, and the water inlet of the water tank is communicated with the inner cavity of the filter basket through the top cover water inlet.
[0021] As a further improvement of the utility model, a quick clamp is further arranged on the inner wall of the mounting cavity, and the water inlet top cover is connected with the pressing arm of the quick clamp.
[0022] As a further improvement of the utility model, the water inlet top cover has a first position and a second position, and the water inlet top cover is switched between the first position and the second position through the quick clamp, wherein,
[0023] When the water inlet top cover is in the first position, the water inlet top cover abuts against the filter basket and presses the filter bag;
[0024] When the water inlet top cover is moved to the second position, the water inlet top cover is separated from the filter basket and a distance is left between the water inlet top cover and the filter basket to take out the filter bag.
[0025] Compared with the prior art, the utility model has the following beneficial effects:
[0026] 1. Reduce pressure loss: The filter is arranged at the water inlet end of the water pump instead of the high pressure area at the water outlet end, reducing the resistance that the water flow needs to overcome, thereby significantly reducing the pressure loss of the system, which not only improves the cooling efficiency of the entire cooling system, but also avoids the additional energy consumption to compensate for the pressure loss;
[0027] 2. Reduce flow attenuation: Since the filtration process occurs before the water pump, the flow attenuation problem caused by high pressure side filtration is effectively prevented, even in the case of filter bag blockage, a relatively stable output flow can be maintained, without the need to configure an oversized water pump or additional pressure stabilizing device, reducing equipment cost;
[0028] 3. Optimize water quality management: By directly purifying the circulating cooling water in the water tank, the working efficiency and service life of the downstream heat exchange equipment are guaranteed, and the operation stability and economy of the entire industrial cooling system are indirectly improved;
[0029] 4. Visibility of filter: The top cover inlet of the water inlet top cover also serves as an observation window, through which the operator can observe the amount of impurities accumulated inside the filter bag. When the amount of impurities reaches a certain level, the filter can be replaced in time, rather than relying on a fixed schedule or empirical estimate, which helps to avoid waste caused by premature replacement of the filter bag, and also prevents system performance degradation due to delayed replacement;
[0030] 5. Easy to replace filter bag: With the design of quick clamps, the operator can quickly and easily switch the water inlet top cover from the first position to the second position, greatly simplifying the replacement process of the filter bag, which reduces downtime and improves maintenance efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0031] Fig. 1 is a schematic view of the installation position of the filter in the water tank of the utility model;
[0032] Fig. 2 is a schematic view of the position of the filter and the cleaning port of the utility model;
[0033] Fig. 3 is a sectional view of the filter of the utility model.
[0034] In the figure, 100, water tank; 110, water tank inlet; 120, water tank outlet; 130, installation cavity; 131, water storage space; 140, cleaning port; 141, cover plate;
[0035] 200, water pump;
[0036] 300, filter; 310, filter basket; 311, water passage hole; 320, water inlet top cover; 321, top cover inlet; 330, quick clamp. DETAILED DESCRIPTION
[0037] The following is a specific embodiment of the utility model and further describes the technical method of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.
[0038] As Figs. 1-3 shown, the utility model provides a structure of water tank built-in bag type filter, including:
[0039] Water tank 100 has water tank water inlet 110 and water tank water outlet 120, and the water tank 100 is further provided with installation cavity 130, and the installation cavity 130 is communicated with the water tank water inlet 110 and the water tank water outlet 120, and realizes the path control to cooling water;
[0040] Water pump 200 is arranged at the water tank water outlet 120 and makes installation cavity 130 form water storage space 131, and the water inlet end of water pump 200 is communicated with water storage space 131;
[0041] Filter 300 is arranged in installation cavity 130, and the water inlet end of filter 300 is towards water tank water inlet 110, and its water outlet end is communicated with water storage space 131, and the cooling water that enters water tank water inlet 110 flows into water storage space 131 after being filtered by filter 300, and is outputted outward by water pump 200.
[0042] It is worth mentioning that, in the embodiment, filter 300 is arranged at the water inlet end of water pump 200, and the cooling water needs to be filtered by filter 300 first and then is outputted outward by water pump 200, and such arrangement can effectively reduce the pressure loss and flow loss caused by filtering and pipeline configuration, thereby improving the cooling efficiency of the whole cooling system.
[0043] The embodiment provides such arrangement, and at least has the following advantages:
[0044] 1, reduce pressure loss: filter 300 is arranged at the water inlet end of water pump 200 instead of the high-pressure area of the water outlet end, reduces the filter material resistance that water flow needs to overcome, thereby significantly reduces the pressure loss of the system, which not only improves the cooling efficiency of the whole cooling system, but also avoids the additional energy consumption for compensating the pressure loss;
[0045] 2, reduce flow attenuation: since the filtering process occurs before water pump 200, effectively prevents the flow attenuation problem caused by high-pressure side filtering, even in the case of filter bag blockage, can maintain relatively stable output flow, without configuring oversized water pump 200 or additional pressure stabilizing device, reduces the equipment cost;
[0046] 3. Optimized water quality management: By directly purifying the circulating cooling water within the water tank 100, the working efficiency and service life of the downstream heat exchange equipment are ensured, indirectly improving the operational stability and economy of the entire industrial cooling system.
[0047] Preferably, the water tank inlet 110 is located on the side of the water tank 100 and close to the inlet of the filter 300. This design arrangement ensures that the fresh cooling water flowing into the water tank 100 can directly and efficiently enter the filter 300 for treatment, reducing local turbulence or stagnant zones caused by complex water flow paths, ensuring smoother and more uniform water flow through the filter medium, and further improving the filtration effect.
[0048] Preferably, the side of the water tank 100 is also provided with a cleaning port 140, which is close to the inlet of the filter 300. The cleaning port 140 is provided with a cover plate 141, which can be easily opened or closed by operating the cover plate 141. Potential problems such as removing accumulated impurities or blockages in the filter 300 can be quickly addressed without disassembling the entire system or moving large components, greatly improving the convenience and efficiency of maintenance work and reducing downtime.
[0049] Preferably, the filter 300 includes a filter basket 310 and a filter bag (not shown in the figure). The filter basket 310 is arranged in the mounting cavity 130, and the filter bag is replaceably arranged in the filter basket 310. The filter bag physically traps solid particles in the circulating cooling water through its microporous structure. When the cooling water containing impurities flows through the filter bag, the particulate matter is blocked on the surface or inside the filter bag, thereby achieving water purification.
[0050] According to specific filtration requirements (such as water quality standards to be achieved, types and sizes of pollutants to be treated, etc.), filter bags with different micropore sizes can be selected. For example, in application scenarios involving large particulate matter, filter bags with larger pore sizes can be selected; while in applications requiring fine filtration to remove fine particles, filter bags with smaller pore sizes are used.
[0051] This flexibility allows the system to adapt to filtration needs under various working conditions, whether it is preliminary large particulate matter filtration or subsequent fine filtration stages, and suitable solutions can be found.
[0052] Since the filter bag is replaceable, when the filter bag's filtration efficiency is reduced due to excessive accumulation of impurities, the system can be restored to normal operation by simply removing the old filter bag and replacing it with a new one. This not only simplifies the maintenance process, but also reduces downtime and improves overall efficiency.
[0053] Preferably, a plurality of water passing holes 311 are formed on the circumferential wall of the filter basket 310, ensuring that the cooling water purified by the filter bag can flow out from all directions, and the inner cavity of the filter basket 310 is in communication with the water storage space 131 through the water passing holes 311 and is further output by the water pump 200.
[0054] Preferably, the filter 300 further comprises a water inlet top cover 320 arranged in the installation cavity 130 and located at the top of the filter basket 310. The filter bag is pressed against the filter basket 310 through the water inlet top cover 320. The main function of the water inlet top cover 320 is to fix the filter bag on the filter basket 310 through the pressing action, to ensure that the water flow can only pass through the filter bag for filtration, but not bypass or leak, and to ensure the close contact between the filter bag and the filter basket 310, thereby reducing the risk of leakage due to looseness or improper installation and improving the reliability of the entire filtration system.
[0055] The water inlet top cover 320 is provided with a top cover water inlet 321, and the water tank water inlet 110 is in communication with the inner cavity of the filter basket 310 through the top cover water inlet 321. In actual application, the water inlet top cover 320 always presses the filter bag against the filter basket 310, and the cooling water enters the filter bag through the top cover water inlet 321 for filtration.
[0056] In addition, the top cover water inlet 321 is also used as an observation window. The operator can observe the amount of impurities accumulated in the filter bag through the observation window, and replace the filter bag in time when the amount of impurities reaches a certain amount, instead of relying on a fixed schedule or experience estimation. This helps to avoid waste caused by premature replacement of the filter bag, and also prevents performance degradation caused by delayed replacement.
[0057] In addition, when replacing the filter bag, only the water inlet top cover 320 needs to be opened, and the filter bag can be smoothly taken out and placed in the cleaning port 140, and then a new filter bag can be replaced. Specifically, to further improve the convenience of replacing the filter bag, a quick clamp 330 is arranged on the water inlet top cover 320.
[0058] The quick clamp 330 is installed on the inner wall of the installation cavity 130, and the water inlet top cover 320 is connected with the pressing arm of the quick clamp 330, so that the water inlet top cover 320 has a first position and a second position. The water inlet top cover 320 is switched between the first position and the second position by the quick clamp 330. Wherein,
[0059] When the water inlet top cover 320 is in the first position, it abuts against the filter basket 310 and presses the filter bag, ensuring that the water flow can only be effectively filtered by the filter bag;
[0060] When the filter bag needs to be replaced, the water inlet top cover 320 is moved upward to the second position by operating the quick clamp 330, at this time the water inlet top cover 320 is separated from the filter basket 310, and there is enough space between the two to facilitate the removal of the old filter bag and the placement of the new filter bag.
[0061] With the design of the quick clamp 330, the operator can quickly and easily switch the water inlet top cover 320 from the first position to the second position, greatly simplifying the replacement process of the filter bag, which reduces downtime and improves maintenance efficiency.
[0062] The technical means disclosed in the technical scheme of the utility model is not limited to the technical means disclosed in the above technical means, and also includes technical solutions composed of any combination of the above technical features. The above is the specific implementation of the utility model, and it should be pointed out that for ordinary technical personnel in the art, without departing from the principle of the utility model, some improvements and refinements can be made, which are also considered as the protection scope of the utility model.
[0063] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), if the specific posture changes, the directional indications will also change accordingly.
[0064] In addition, in the utility model, the description of "first", "second", "one" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited. The terms "connection", "fixation" and the like should be understood broadly, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.
[0065] The technical solutions of each embodiment of the utility model can be combined with each other, but it must be based on the realization of ordinary skilled persons in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the protection scope required by the utility model.
[0066] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.
Claims
1. A structure of a water tank built-in bag filter, characterized by, The utility model relates to a water cooling device, comprising: a water tank with a water tank inlet and a water tank outlet, and a mounting cavity in the water tank communicating with the water tank inlet and the water tank outlet; a water pump arranged at the water tank outlet and forming a water storage space with the mounting cavity, the water pump having a water inlet end communicating with the water storage space; a filter arranged in the mounting cavity, the filter having a water inlet end facing the water tank inlet and a water outlet end communicating with the water storage space, the cooling water entering the water tank inlet flowing into the water storage space after being filtered by the filter and being outputted outward by the water pump.
2. The structure of a water tank built-in bag filter according to claim 1, wherein The water tank inlet is located at the side of the water tank and close to the inlet of the filter.
3. The structure of a water tank built-in bag filter according to claim 1, wherein The side of the water tank is further provided with a cleaning port close to the inlet of the filter.
4. The structure of a water tank built-in bag filter according to claim 3, wherein A cover plate is arranged on the cleaning port to open or close the cleaning port.
5. The structure of a water tank built-in bag filter according to claim 1, wherein The filter comprises a filter basket and a filter bag, the filter basket is arranged in the mounting cavity, and the filter bag is replaceably arranged in the filter basket.
6. The structure of a water tank built-in bag filter according to claim 5, wherein A plurality of water passing holes are formed in the circumferential wall of the filter basket, and the inner cavity of the filter basket communicates with the water storage space through the water passing holes.
7. The structure of a water tank built-in bag filter according to claim 5, wherein The filter further comprises a water inlet top cover arranged in the mounting cavity and located at the top of the filter basket, and the filter bag is pressed on the filter basket through the water inlet top cover.
8. The structure of a water tank built-in bag filter according to claim 7, wherein The water inlet top cover is provided with a top cover water inlet, and the water tank inlet communicates with the inner cavity of the filter basket through the top cover water inlet.
9. The structure of a water tank built-in bag filter according to claim 7, wherein A quick clamp is further arranged on the inner wall of the mounting cavity, and the water inlet top cover is connected with the pressing arm of the quick clamp.
10. The structure of a water tank built-in bag type filter according to claim 9, wherein The water inlet top cover has a first position and a second position, and the quick clamp drives the water inlet top cover to switch between the first position and the second position, wherein, when the water inlet top cover is in the first position, it abuts against the filter basket and presses the filter bag; when the water inlet top cover moves upward to the second position, it is separated from the filter basket and a distance is left between them for taking out the filter bag.