Air conditioner cooling water filtering structure

Abstract

The utility model relates to air conditioning technical field proposes an air conditioning cooling water filter structure, including cooling water main pipe, both ends of cooling water main pipe all are provided with three -way valve spare, two three -way valve spare two export end and import end are linked with first filter pipe and second filter pipe respectively, all are provided with water filter subassembly on first filter pipe and second filter pipe, water filter subassembly includes the three -way pipe fixed on corresponding first filter pipe, second filter pipe, the bottom export of three -way pipe is screwed with outer thread pipe, the bottom fixed connection of outer thread pipe has rotary cap, the inboard fixed connection of outer thread pipe has the filter screen of separating, the top of filter screen is provided with two for the barrier filter screen spare of three -way pipe inside cooling water carries out the barrier, two barrier filter screen spare and filter screen constitute Y type structure. The utility model passes through the integration double filter pipe, Y type filter screen and intelligent valve spare, has comprehensively promoted the filter performance, maintenance convenience and operating efficiency of air conditioning cooling water system.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, specifically to an air conditioning cooling water filtration structure. Background Technology

[0002] Air conditioning cooling water filtration is a key technology for maintaining system cleanliness. Existing technologies commonly employ filtration methods including single-pipe filters and simple filter structures, which are typically integrated into the main cooling water pipes to remove impurities through physical interception. However, as air conditioning systems become larger and operate continuously, higher demands are placed on the efficiency, ease of maintenance, and reliability of the filtration structure.

[0003] A search revealed that Chinese Patent (Publication No.: CN209885345U) discloses "a central air conditioning circulating cooling water treatment device, comprising a treatment tank, a filter, a cover plate, an inlet pipe, a locking block, a fixing block, a slot, an outlet pipe, a drain groove, threaded holes, fastening bolts, through holes, a filter screen, a fixing ring, positioning holes, and a fixing device. A filter is fitted onto the center of the top plate of the treatment tank. Fixing blocks are fixedly installed on both sides of the filter on the top plate of the treatment tank. Slots are provided on the top of each fixing block. Locking blocks are fixedly installed on both sides of the filter, and the locking blocks cooperate with the slots." Each of the fixed blocks has through holes on its outer side, and fastening bolts are installed inside each of the two through holes. Threaded holes are also provided on the outer side of each of the two locking blocks corresponding to the through holes, and these threaded holes are connected to the fastening bolts. A cover plate is fixedly installed on the top of the filter, and a water inlet pipe is fitted into the center of the top surface of the cover plate. Water leakage grooves are provided around the bottom of the filter. A filter screen is installed inside the filter, and a fixing ring is fixedly installed around the top of the filter screen. Positioning holes are provided on both sides of the fixing ring. Fixing devices are provided on the inner walls of both sides of the top of the filter. A water outlet pipe is fitted into the center of the bottom of the treatment box.

[0004] However, in the process of implementing the relevant technology, this patent has certain technical defects: First, the filters in this patent generally use a single-layer filter screen or a simple filtration method, which has a limited filtration area and is prone to impurity residue. When cooling water flows through the filter screen, if the filtration is not thorough, fine impurities will accumulate in the pipes or heat exchangers, reducing heat transfer efficiency and even causing equipment failure. Secondly, the filter of this patent often requires shutdown when cleaning or replacing the filter screen, which affects the continuous operation of the air conditioning system. For example, in a single-pipe design, water flow must be interrupted to maintain the filter screen, which will cause energy waste and production interruption in commercial or industrial air conditioning applications.

[0005] In view of this, the present invention proposes an air conditioning cooling water filtration structure. Utility Model Content

[0006] This invention proposes an air conditioning cooling water filtration structure, which solves the problem of insufficient filtration effect caused by the single-layer filter screen filtration method in the prior art.

[0007] The technical solution of this utility model is as follows: An air conditioning cooling water filtration structure includes a cooling water main pipe, both ends of which are provided with three-way valves. The two outlet ends and the inlet ends of the two three-way valves are respectively connected to a first filter pipe and a second filter pipe. Each of the first filter pipe and the second filter pipe is provided with a water filtration assembly. The water filtration assembly includes a three-way pipe fixed on the corresponding first filter pipe and second filter pipe. The bottom outlet of the three-way pipe is threaded with an external threaded pipe. A rotating cap is fixedly connected to the bottom of the external threaded pipe. A separator filter screen is fixedly connected to the inner side of the external threaded pipe. Two barrier filter screens for blocking the cooling water inside the three-way pipe are provided on the top of the separator filter screen. The two barrier filter screens and the separator filter screen form a Y-shaped structure.

[0008] Preferably, the barrier filter includes a frame plate fixedly connected to the top of the separator filter, the barrier filter is slidably fitted on the inner side of the frame plate, and a plurality of spring pieces are fixedly connected to the inner side of the barrier filter, with the ends of the spring pieces away from the barrier filter being fixedly connected to the frame plate.

[0009] Preferably, the three-way valve includes a valve seat, with an inlet pipe fixedly connected to the inlet end of the valve seat, and a first outlet pipe and a second outlet pipe fixedly connected to the two outlet ends of the valve seat, respectively. The first outlet pipe and the second outlet pipe are respectively connected to the first filter pipe and the second filter pipe.

[0010] Preferably, a spherical valve core is rotatably fitted on the inner side of the valve seat, a T-shaped cavity is opened on the inner side of the spherical valve core, and an operating element for driving the spherical valve core to rotate is provided on the top of the valve seat.

[0011] Preferably, the operating component includes a mounting box fixedly connected to the top of the valve seat, and a valve stem rotatably connected to the inner side of the mounting box, penetrating the top wall of the valve seat, the bottom of the valve stem being fixedly connected to a ball valve core.

[0012] Preferably, the operating component further includes a worm gear fixedly connected to the top of the valve stem, a worm is rotatably connected to the inner side of the mounting box, the worm meshes with the worm gear, and a handwheel is fixedly connected to the end of the worm.

[0013] Preferably, the valve seat has an inner groove, a sealing plate is slidably connected to the bottom of the groove, the sealing plate is fixedly connected to the valve stem, and a pressure spring is sleeved on the inner side of the groove, with the two ends of the pressure spring abutting against the sealing plate and the inner wall of the groove, respectively.

[0014] The working principle and beneficial effects of this utility model are as follows: 1. The water filtration assembly adopts a Y-shaped structure with two barrier filter screens and a separator filter screen, which significantly increases the filtration area and reduces water flow resistance. Compared with the existing single-layer filter screen, this design can more effectively intercept fine impurities and avoid the decrease in heat conduction efficiency and equipment failure caused by impurity residue.

[0015] 2. Three-way valves are installed at both ends of the cooling water main pipe, which can be connected to the first filter pipe and the second filter pipe respectively. By operating the three-way valves, the water flow can be quickly switched between the two filter pipes. When one filter pipe needs cleaning or maintenance, it can be switched to the other side to ensure continuous operation of the air conditioning system and avoid energy waste and production interruption.

[0016] 3. The valve stem of the three-way valve is equipped with a pressure spring and a sealing plate to form an elastic seal and prevent cooling water leakage. This design can accommodate small displacements of the valve stem, ensuring reliable sealing during long-term operation. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of an air conditioning cooling water filtration structure according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of an air conditioning cooling water filtration structure according to the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the water filtration assembly of this utility model; Figure 4 This is a schematic diagram of the barrier filter element of this utility model; Figure 5 This is a schematic diagram of the structure of the three-way valve of this utility model; Figure 6 This is a schematic diagram of the structure of the operating component of this utility model; Figure 7 for Figure 6 A magnified structural diagram of point A in the diagram.

[0019] In the diagram: 1. Cooling water main pipe; 2. Three-way valve; 21. Valve seat; 22. Inlet pipe; 23. First outlet pipe; 24. Second outlet pipe; 25. Ball valve core; 26. T-shaped cavity; 27. Operating component; 271. Mounting box; 272. Valve stem; 273. Worm gear; 274. Worm; 275. Handwheel; 276. Mounting groove; 277. Sealing plate; 278. Pressure spring; 3. First filter pipe; 4. Water filter assembly; 41. Three-way pipe; 42. External threaded pipe; 43. Rotary cap; 44. Barrier filter screen; 441. Frame plate; 442. Barrier filter screen; 443. Spring; 45. Separator filter screen; 5. Second filter pipe. Detailed Implementation

[0020] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0021] like Figures 1 to 7 As shown, this embodiment proposes an air conditioning cooling water filtration structure, including a cooling water main pipe 1. Both ends of the cooling water main pipe 1 are provided with three-way valves 2. The two outlet ends and the inlet ends of the two three-way valves 2 are respectively connected to a first filter pipe 3 and a second filter pipe 5. Both the first filter pipe 3 and the second filter pipe 5 are provided with water filtration components 4. The water filtration components 4 include a three-way pipe 41 fixed on the corresponding first filter pipe 3 and second filter pipe 5. The bottom outlet of the three-way pipe 41 is threaded with an external threaded pipe 42. The bottom of the external threaded pipe 42 is fixedly connected with a rotating cap 43. The inner side of the external threaded pipe 42 is fixedly connected with a separator filter screen 45. The top of the separator filter screen 45 is provided with two barrier filter screens 44 for blocking the cooling water inside the three-way pipe 41. The two barrier filter screens 44 and the separator filter screen 45 form a Y-shaped structure.

[0022] In this embodiment, cooling water flows from the cooling water main pipe 1 into the inlet end of the three-way valve 2. By operating the three-way valve 2, the water flow can be guided to either the first filter pipe 3 or the second filter pipe 5. Each filter pipe is equipped with a water filter assembly 4, which includes a three-way pipe 41, an external threaded pipe 42, a rotating cap 43, a separator filter screen 45, and two barrier filter screens 44. After the water flows into the three-way pipe 41, it is first initially filtered by the two barrier filter screens 44, and impurities are blocked on the surface of the filter screens. Then, the water flows through the separator filter screen 45 for further filtration, and finally, clean water flows out from the outlet. The barrier filter element 44 and the separator filter element 45 form a Y-shaped structure. The Y-shaped filter structure increases the filtration area and reduces water flow resistance. At the same time, the multi-layer filtration improves the impurity removal rate. When the first filter tube 3 or the second filter tube 5 needs to be cleaned, it can be switched to another filter tube through the three-way valve element 2 to achieve uninterrupted operation. During cleaning, the external threaded tube 42 can be disassembled by rotating the rotating cap 43 to remove impurities from the separator filter element 45 and the two barrier filter elements 44. The entire structure, through the dual filter tube design, allows cleaning or maintenance without stopping the system, improving the reliability and efficiency of the air conditioning system.

[0023] In a further preferred embodiment of the present invention, the barrier filter element 44 includes a frame plate 441 fixedly connected to the top of the separator filter 45, a barrier filter 442 slidably fitted on the inner side of the frame plate 441, and a plurality of spring pieces 443 fixedly connected to the inner side of the barrier filter 442, with the ends of the plurality of spring pieces 443 away from the barrier filter 442 all fixedly connected to the frame plate 441.

[0024] In this embodiment, the filter element 44 filters the cooling water, and the specific implementation process is as follows: When cooling water flows through the tee pipe 41, impurities impact the filter screen 442. The spring plate 443 provides a buffering effect, allowing the filter screen 442 to move slightly to disperse the pressure and prevent the filter screen 442 from clogging due to impurity accumulation. The elasticity of the spring plate 443 can also maintain the stability of the filter screen 442 when the water flow fluctuates, ensuring consistent filtration effect. If there are too many impurities, the filter screen 442 can slide along the frame plate 441, which can be automatically adjusted in position by the restoring force of the spring plate 443. The buffering design of the spring plate 443 reduces the direct impact of impurities on the filter screen and extends the filter screen's life.

[0025] In a further preferred embodiment of this utility model, the three-way valve 2 includes a valve seat 21. The inlet end of the valve seat 21 is fixedly connected to a water inlet pipe 22. The two outlet ends of the valve seat 21 are respectively fixedly connected to a first water outlet pipe 23 and a second water outlet pipe 24. The first water outlet pipe 23 and the second water outlet pipe 24 are respectively connected to a first filter pipe 3 and a second filter pipe 5. A ball valve core 25 is rotatably fitted on the inner side of the valve seat 21. A T-shaped cavity 26 is opened on the inner side of the ball valve core 25. An operating element 27 for driving the ball valve core 25 to rotate is provided on the top of the valve seat 21.

[0026] In this embodiment, by rotating the ball valve core 25 through the operating component 27, the direction of the T-shaped cavity 26 can be changed, thereby controlling the water flow from the inlet pipe 22 to the first outlet pipe 23 or the second outlet pipe 24. When the T-shaped cavity 26 is aligned with the first outlet pipe 23 or the second outlet pipe 24, the water flows through the pipe into the corresponding first filter pipe 3 or second filter pipe 5; the other outlet pipe is then closed. This design enables rapid switching and ensures precise water flow distribution. The design of the ball valve core 25 and the T-shaped cavity 26 enables rapid water flow switching and reduces system downtime.

[0027] In a further preferred embodiment of this utility model, the operating component 27 includes a mounting box 271 fixedly connected to the top of the valve seat 21. A valve stem 272 penetrating the top wall of the valve seat 21 is rotatably connected to the inner side of the mounting box 271. The bottom of the valve stem 272 is fixedly connected to the ball valve core 25. A worm gear 273 is fixedly connected to the top of the valve stem 272. A worm 274 is rotatably connected to the inner side of the mounting box 271. The worm 274 meshes with the worm gear 273. A handwheel 275 is fixedly connected to the end of the worm 274.

[0028] In this embodiment, the worm gear 274 is driven by rotating the handwheel 275 to rotate the worm wheel 273, which in turn rotates the ball valve core 25 via the valve stem 272. The worm wheel and worm gear mechanism reduces the operating torque, making switching easy and suitable for frequent use.

[0029] In a further preferred embodiment of the present invention, an installation groove 276 is provided on the inner side of the valve seat 21, and a sealing plate 277 is slidably connected to the bottom end of the installation groove 276. The sealing plate 277 is fixedly connected to the valve stem 272, and a pressure spring 278 is sleeved on the inner side of the installation groove 276. The two ends of the pressure spring 278 abut against the inner wall of the sealing plate 277 and the installation groove 276, respectively.

[0030] In this embodiment, a pressure spring 278 is sleeved within the mounting groove 276, with its two ends abutting against the sealing plate 277 and the groove wall, respectively. Continuous pressure is applied to ensure the sealing plate 277 tightly presses against the valve stem 272, forming an elastic seal. When the valve stem 272 rotates, the sealing plate 277 moves accordingly, but the pressure spring 278 ensures that the sealing plate 277 always maintains contact with the sealing surface, adapting to the slight displacement of the valve stem 272 and preventing cooling water leakage from the gap in the valve stem 272. This dynamic seal ensures long-term operational reliability.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An air conditioning cooling water filtration structure, comprising a cooling water main pipe (1), characterized in that, Both ends of the cooling water main pipe (1) are provided with three-way valves (2). The two outlet ends and the inlet ends of the two three-way valves (2) are respectively connected to the first filter pipe (3) and the second filter pipe (5). The first filter pipe (3) and the second filter pipe (5) are each provided with a water filter assembly (4). The water filter assembly (4) includes a three-way pipe (41) fixed on the corresponding first filter pipe (3) and second filter pipe (5). The bottom outlet of the three-way pipe (41) is threaded with an external thread pipe (42). The bottom of the external thread pipe (42) is fixedly connected with a rotating cap (43). The inner side of the external thread pipe (42) is fixedly connected with a separator filter screen (45). The top of the separator filter screen (45) is provided with two barrier filter screens (44) for blocking the cooling water inside the three-way pipe (41). The two barrier filter screens (44) and the separator filter screen (45) form a Y-shaped structure.

2. The air conditioning cooling water filtration structure according to claim 1, characterized in that, The barrier filter element (44) includes a frame plate (441) fixedly connected to the top of the separator filter (45). The inner side of the frame plate (441) is slidably fitted with a barrier filter (442). The inner side of the barrier filter (442) is fixedly connected with a plurality of spring pieces (443). The ends of the plurality of spring pieces (443) away from the barrier filter (442) are all fixedly connected to the frame plate (441).

3. The air conditioning cooling water filtration structure according to claim 1, characterized in that, The three-way valve (2) includes a valve seat (21), with an inlet pipe (22) fixedly connected to the inlet end of the valve seat (21), and a first outlet pipe (23) and a second outlet pipe (24) fixedly connected to the two outlet ends of the valve seat (21), respectively. The first outlet pipe (23) and the second outlet pipe (24) are connected to the first filter pipe (3) and the second filter pipe (5) respectively.

4. The air conditioning cooling water filtration structure according to claim 3, characterized in that, The inner side of the valve seat (21) is rotatably fitted with a ball valve core (25), and the inner side of the ball valve core (25) is provided with a T-shaped cavity (26). The top of the valve seat (21) is provided with an operating element (27) for driving the ball valve core (25) to rotate.

5. The air conditioning cooling water filtration structure according to claim 4, characterized in that, The operating component (27) includes a mounting box (271) fixedly connected to the top of the valve seat (21). The inner side of the mounting box (271) is rotatably connected to a valve stem (272) that penetrates the top wall of the valve seat (21). The bottom of the valve stem (272) is fixedly connected to a ball valve core (25).

6. The air conditioning cooling water filtration structure according to claim 5, characterized in that, The operating component (27) also includes a worm gear (273) fixedly connected to the top of the valve stem (272), a worm (274) rotatably connected to the inner side of the mounting box (271), the worm (274) meshing with the worm gear (273), and a handwheel (275) fixedly connected to the end of the worm (274).

7. The air conditioning cooling water filtration structure according to claim 6, characterized in that, The valve seat (21) has an installation groove (276) on its inner side. A sealing plate (277) is slidably connected to the bottom end of the installation groove (276). The sealing plate (277) is fixedly connected to the valve stem (272). A pressure spring (278) is sleeved on the inner side of the installation groove (276). The two ends of the pressure spring (278) abut against the inner wall of the sealing plate (277) and the installation groove (276), respectively.

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