Water supply device of cooling tower

Abstract

The utility model discloses a water supply device of a cooling tower, which relates to the technical field of cooling towers and comprises a filter component connected into a water supply pipeline, the filter component comprises a filter box and a filter screen arranged in the filter box, and the filter screen is obliquely arranged and divides the inside of the filter box into a water inlet chamber and a water outlet chamber. A plunger and an elastic piece are arranged in the water injection pipe, so that the plunger and the elastic piece are matched to form a one-way valve structure, the plunger is arranged to be in a barrel shape with an open end and a closed end, the open end is arranged at the end, away from the water outlet cavity, of the water injection pipe, and a water spraying hole communicated with an inner cavity of the plunger is formed in the side portion of the plunger. Due to the arrangement of the plunger and the elastic piece, in the initial state, the plunger is arranged in the water injection pipe, after a high-pressure water pipe is connected to the water injection pipe, high-pressure water flow can push the plunger to move into and out of the water cavity, the elastic piece is stretched, the plunger can open the water injection pipe, the high-pressure water flow can be sprayed to the filter screen from the water injection pipe, and cleaning is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to a water supply device for a cooling tower. Background Art

[0002] The cooling tower's water supply system is a crucial component. Its function is to pump water from the water tank and deliver it to the upper portion of the cooling tower. The water is then evenly distributed across the cooling tower's packing through a water distributor, forming a film or droplets. This allows air to pass through the cooling tower and exchange heat with the water, thereby lowering the water temperature. After the water distributor evenly distributes the water across the packing, a small amount evaporates, while the remaining water flows down into the sump. It then flows through the circulation pipeline and refrigeration equipment, then is recycled back into the water tank for reuse. However, because the packing may clog with dust and scale, a filtration mechanism is required to filter the water supply line between the water tank and the water distributor to prevent clogging of the distributor with foreign matter.

[0003] The existing technology generally adds a filter to the water supply pipeline to filter the water. However, after a period of use, this filtering method will cause dirt to adhere to the filter and / or foreign objects to get stuck in the mesh, which will reduce the filtering effect of the filter. The corresponding solution is to regularly shut down the machine and disassemble and clean the filter. In summary, the filtering method of the existing technology has poor filtering effect, short subsequent maintenance cycle, and cumbersome operation.

[0004] In response to the complex cleaning operation under the above-mentioned filtering method, some technicians have made the following improvements: a through-hole that can be opened or blocked is opened on the filter box with a filter screen inside. When cleaning the filter screen, a high-pressure water pipe is inserted into the opened through-hole, and the filter screen inside the filter box is flushed with the high-pressure water flow sprayed by the high-pressure water pipe, thereby achieving disassembly-free cleaning. However, although this cleaning method achieves disassembly-free cleaning, it is still necessary to manually open or block the through-hole repeatedly during the cleaning process. If the sealing requirements of the through-hole are high, it is also necessary to use tools to block the through-hole. The operation is also cumbersome, and the amplitude of the movement generated by each manual operation will be different, which will cause damage to the seal. If this continues for a long time, the sealing of the through-hole will deteriorate, which is not conducive to the normal operation of the filter box.

[0005] Therefore, it is necessary to provide a water supply device for a cooling tower to solve the above technical problems. Utility Model Content

[0006] The purpose of the utility model is to solve the problems in the prior art and to propose a water supply device for a cooling tower, in which a filter assembly is used to filter the water in the water supply pipeline. Due to the structure of the filter assembly itself, not only can the filter be cleaned without disassembly, but the entire cleaning process can also be ensured to be quick and simple.

[0007] In order to solve the above problems, the present invention provides the following technical solutions:

[0008] A water supply device for a cooling tower includes a filter assembly connected to a water supply pipeline, the filter assembly includes a filter box and a filter screen arranged inside the filter box, the filter screen is arranged at an angle and divides the interior of the filter box into a water inlet chamber and a water outlet chamber, and a water injection pipe is provided on the water outlet chamber, a plunger and an elastic member are provided in the water injection pipe, so that the two cooperate to form a one-way valve structure, the plunger is configured to be cylindrical with an open end and a closed end, and the open end is provided on the water injection pipe at an end away from the water outlet chamber, and a water spray hole connected to its inner cavity is provided on the side of the plunger, so that when the water spray hole is driven into and out of the water chamber by water at a preset pressure along with the plunger, the water spray hole is used to spray water onto the filter screen.

[0009] As a further solution of the present invention: a baffle is fixedly provided at the bottom of the plunger. When the plunger is in the water injection pipe, the baffle opens the outlet end of the water outlet chamber. When the plunger is driven into and out of the water chamber by the water flow at a preset pressure, the baffle moves to the outlet end of the water outlet chamber and seals it.

[0010] As a further solution of the present invention: the water spray holes are provided in plurality and are evenly distributed on the plunger.

[0011] As a further solution of the present invention: the ejection angles of the plurality of water spray holes are different.

[0012] As a further solution of the present invention: the filter screen is arranged along the diagonal direction of the filter box.

[0013] As a further solution of the present invention: the bottom of the water inlet chamber is connected to a temporary storage box, and a sewage outlet is provided at the bottom of the temporary storage box.

[0014] As a further solution of the present invention: the temporary storage box is provided with a solenoid valve for opening and closing the sewage outlet.

[0015] As a further solution of the present invention: the elastic member is a return spring, and the two ends of the return spring are respectively connected to the open end of the plunger and the inner wall of the water injection pipe.

[0016] As a further solution of the present invention: the water supply pipeline is composed of a water tank and a water distributor, and the water outlet end of the water tank is connected to the water inlet end of the water inlet chamber, and the water inlet end of the water distributor is connected to the water outlet end of the water outlet chamber.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Through the arrangement of the plunger and the elastic member, in the initial state, the plunger is in the water injection pipe. When the high-pressure water pipe is connected to the water injection pipe, the high-pressure water flow will push the plunger to move in and out of the water chamber. The elastic member is stretched, and the plunger will open the water injection pipe, so that the high-pressure water flow can be sprayed from the water injection pipe to the filter screen to achieve cleaning. After cleaning, it is only necessary to remove the high-pressure water pipe. Under the reset action of the elastic member, the plunger can automatically move into the water injection pipe to achieve blocking. Compared with the cleaning method in the prior art, the cleaning method of the utility model is simple to operate and has a high degree of automation.

[0019] 2. By setting the plunger into a cylindrical shape with an open end and a closed end, and providing multiple water spray holes on the plunger, high-pressure water can be sprayed from the water spray holes in a planar shape toward the filter. This spraying effect is stronger than the spraying effect of the plunger opening the water injection pipe, and thus this spraying effect can further improve the cleaning effect of the filter;

[0020] 3. Through the setting of the baffle, when the water injection pipe is connected to the high-pressure water pipe, the plunger is driven into the water outlet chamber by the high-pressure water flow. At this time, the baffle will move to the outlet end of the water outlet chamber and block it, preventing foreign matter from flowing into the water distributor;

[0021] 4. Through the setting of the temporary storage box, the temporary storage box is connected to the water inlet chamber, so that the temporary storage box can not only collect foreign matter that is blocked by the filter in the water supply pipeline, but also collect and temporarily store foreign matter generated during the cleaning process of the filter, and then open the sewage outlet for centralized cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model connected to the water supply pipeline;

[0024] Figure 2 It is a schematic cross-sectional structural diagram of the present utility model;

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model in a three-dimensional state. Figure 1 ;

[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model in a three-dimensional state. Figure 2 ;

[0027] Figure 5 It is a schematic cross-sectional structural diagram of the plunger in the present invention in a three-dimensional state.

[0028] In the figure: 1. Filter assembly; 101. Filter box; 102. Filter screen; 2. Water inlet chamber; 201. Temporary storage box; 202. Solenoid valve; 3. Water outlet chamber; 4. Water injection pipe; 5. Plunger; 501. Water spray hole; 502. Baffle; 6. Elastic part; a. Water tank; b. Water distributor. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] like Figure 1-Figure 5 As shown, a water supply device for a cooling tower includes a water supply pipeline consisting of a water tank a and a water distributor b, and a filter assembly 1 connected to the water supply pipeline. Under normal use, the water supply pipeline is used to supply water to the cooling tower, and the filter assembly 1 can filter the water during the transportation process. This connection diagram can be seen from Figure 1 To represent, a driving source (such as a water pump) can be added to the water supply pipeline to drive the water to flow. At the same time, in order to improve the spraying effect of the water distributor b, the structure of the water distributor b can also be set, such as Figure 1 As shown, the water distributor b includes a main pipe connected to the filter assembly 1, and a plurality of branch pipes are connected to the main pipe, and the plurality of branch pipes are arranged in a circumferential array, and each branch pipe is connected to a plurality of nozzles along its length direction.

[0031] Regarding the configuration of the filter assembly 1 described above, the filter assembly 1 includes a filter box 101 and a filter screen 102 disposed therein (the filter screen 102 may be installed in a variety of locations within the filter box 101, Figure 2 The inclined installation shown in the figure is a preferred one), the filter screen 102 divides the interior of the filter box 101 into an inlet chamber 2 and an outlet chamber 3, and the water tank a and the water distributor b are respectively connected to the inlet chamber 2 and the outlet chamber 3 through connecting pipes, so that the water tank a, the inlet chamber 2, the outlet chamber 3 and the water distributor b constitute a conveying pipeline arranged in series. Under normal circumstances, the water on the water tank a first enters the water inlet chamber 2, is filtered through the water inlet chamber 2, and then enters the water outlet chamber 3, and is then transported to the water distributor b for spraying. The filtered foreign matter will be blocked in the water inlet chamber 2 and temporarily stored.

[0032] like Figure 2-Figure 4 As shown, after the filter screen 102 has been used for a long time, dirt will adhere to the surface of the filter screen 102 or foreign objects will be stuck on the mesh. In order to achieve disassembly-free cleaning of the filter screen 102, the utility model is connected to the water outlet chamber 3 with a water injection pipe 4, and the inside of the water injection pipe 4 is provided with a plunger 5 that is movable along its length direction for sealing the water injection pipe 4, and an elastic member 6 is connected between the plunger 5 and the water injection pipe 4. The setting of the plunger 5 and the elastic member 6 constitutes a one-way valve structure. When the filter 102 needs to be cleaned, the high-pressure water pipe can be connected to the water injection pipe 4, and then the high-pressure water flow in the high-pressure water pipe will enter the water injection pipe 4, and the plunger 5 can be driven by the high-pressure water flow into the water outlet chamber 3. At this time, the elastic member 6 will be stretched, the water injection pipe 4 will be opened, and the water flow can enter the water outlet chamber 3 and spray toward the filter 102. This spraying action can clean the filter 102, and by increasing the water pressure in the high-pressure water pipe, the opening degree of the plunger 5 to open the water injection pipe 4 can be increased, thereby changing the amount of water sprayed toward the filter 102, thereby improving the cleaning effect. After the spraying is completed, the high-pressure water pipe and the water injection pipe 4 are undocking, and under the elastic reset action of the elastic member 6, the plunger 5 is reinserted into the water injection pipe 4 to achieve the blocking of the water injection pipe 4 and ensure the sealing of the water outlet chamber 3.

[0033] Through the cooperation of the elastic member 6 and the plunger 5, when the high-pressure water pipe is connected, the plunger 5 can adjust the opening of the water injection pipe 4 according to the pressure of the high-pressure water flow, so that the corresponding amount of water flow can be sprayed toward the filter 102; when the high-pressure water pipe is removed, the elastic reset effect of the elastic member 6 can drive the plunger 5 to be reinserted into the water injection pipe 4 to block the water injection pipe 4. The cleaning operation of the filter 102 of the utility model is simple and uncomplicated. It only needs to connect the high-pressure water pipe to realize the spray cleaning of the filter 102. The water injection pipe 4 can be automatically blocked by removing the high-pressure water pipe to ensure the sealing of the water outlet chamber 3. It should be noted that there is a movable seal between the plunger 5 and the water injection pipe 4. The movable seal only plays a sealing role and does not affect the relative movement between the two.

[0034] Preferably, the elastic member 6 can be a rubber strip or a return spring. When configured as a return spring, both ends of the return spring are connected to the open end of the plunger 5 and the inner wall of the water injection pipe 4 respectively.

[0035] like Figure 3-Figure 5 As shown, in order to improve the cleaning effect of the water jet toward the filter 102, the plunger 5 is set to a cylindrical shape with an open end and a closed end, and the open end is set on the water injection pipe 4 at the end away from the water outlet chamber 3, that is, Figure 2At the top of the middle water injection pipe 4, the side of the plunger 5 is provided with a water spray hole 501 connected to its inner cavity. The water spray holes 501 are preferably provided in a plurality and evenly distributed on the plunger 5. At the same time, the injection angles of the plurality of water spray holes 501 are different. When a high-pressure water pipe is connected to the water injection pipe 4, the high-pressure water flow can push the plunger 5 downward until it reaches the plurality of water spray holes 501 and then exits the water chamber 3. At this time, a portion of the high-pressure water flow will overcome the elastic potential energy of the elastic member 6, and the other portion will be ejected from the water spray holes 501 toward the filter 102, achieving jet cleaning of the filter 102. In this embodiment, by configuring the plunger 5 to be cylindrical and adding a plurality of water spray holes 501, the high-pressure water flow can be ejected from the water spray holes 501 toward the filter 102. This ejection effect is stronger than the ejection effect caused by the plunger 5 opening the water injection pipe 4, and thus this ejection effect can further improve the cleaning effect of the filter 102.

[0036] like Figure 3-Figure 4 As shown, in the process of using high-pressure water flow to clean the filter screen 102, foreign matter on the filter screen 102 will be washed down into the water inlet chamber 2 for temporary storage. In order to prevent some foreign matter from falling into the water outlet chamber 3 and entering the water distributor b, this embodiment is fixedly provided with a baffle 502 at the bottom of the plunger 5. When the water injection pipe 4 is not connected to the high-pressure water pipe, the plunger 5 is in the water injection pipe 4. At this time, the baffle 502 opens the outlet end of the water outlet chamber 3, and the water inlet chamber 2 and the water outlet chamber 3 can perform normal transportation work; when the water injection pipe 4 is connected to the high-pressure water pipe, the plunger 5 is driven into and out of the water chamber 3 by the high-pressure water flow. At this time, the baffle 502 will move to the outlet end of the water outlet chamber 3 and seal it, thereby preventing foreign matter from flowing into the water distributor b.

[0037] like Figure 2-Figure 3 As shown, after the filter 102 has been cleaned multiple times, in order to facilitate the unified treatment of foreign matter temporarily stored in the water inlet chamber 2, a temporary storage box 201 can be provided at the bottom of the water inlet chamber 2. Foreign matter after each cleaning will be collected in the temporary storage box 201. A sewage outlet is provided at the bottom of the temporary storage box 201. A solenoid valve 202 for opening and closing the sewage outlet is provided on the temporary storage box 201. After a certain amount of foreign matter has been collected inside the temporary storage box 201, the solenoid valve 202 can be used to open the sewage outlet to discharge the foreign matter. It should be noted that Figure 2 Although the bottom wall of the water inlet chamber 2 is shown as a flat structure, it can also be set to an inclined layout structure during actual use, so that foreign matter can be better guided into the temporary storage box 201 to avoid foreign matter accumulation on the bottom wall of the water inlet chamber 2.

[0038] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A water supply device for a cooling tower, characterized in that: The invention comprises a filter assembly (1) connected to a water supply pipeline, wherein the filter assembly (1) comprises a filter box (101) and a filter screen (102) arranged inside the filter box (101), wherein the filter screen (102) is arranged obliquely and divides the inside of the filter box (101) into a water inlet chamber (2) and a water outlet chamber (3), and a water injection pipe (4) is provided on the water outlet chamber (3), wherein a plunger (5) and an elastic member (6) are provided in the water injection pipe (4) so ​​that the two chambers are connected. The two cooperate to form a one-way valve structure, the plunger (5) is configured to be cylindrical with an open end and a closed end, and the open end is provided on the water injection pipe (4) at an end away from the water outlet chamber (3), and the side of the plunger (5) is provided with a water spray hole (501) connected to its inner cavity, so that when the water spray hole (501) is driven into the water outlet chamber (3) by water flow of a preset pressure along with the plunger (5), the water spray hole (501) is used to spray water toward the filter (102).

2. A water supply device for a cooling tower according to claim 1, characterized in that: A baffle (502) is fixedly provided at the bottom of the plunger (5); when the plunger (5) is in the water injection pipe (4), the baffle (502) opens the outlet end of the water outlet chamber (3); when the plunger (5) is driven into and out of the water outlet chamber (3) by water flow of a preset pressure, the baffle (502) moves to the outlet end of the water outlet chamber (3) and blocks it.

3. A water supply device for a cooling tower according to claim 1 or 2, characterized in that: The water spray holes (501) are provided in plurality and are evenly distributed on the plunger (5).

4. A water supply device for a cooling tower according to claim 3, characterized in that: The ejection angles of the plurality of water spray holes (501) are all different.

5. A water supply device for a cooling tower according to claim 1 or 2, characterized in that: The filter screen (102) is arranged along the diagonal direction of the filter box (101).

6. A water supply device for a cooling tower according to claim 1 or 2, characterized in that: The bottom of the water inlet chamber (2) is connected to a temporary storage box (201), and a sewage outlet is provided at the bottom of the temporary storage box (201).

7. The water supply device for a cooling tower according to claim 6, characterized in that: The temporary storage box (201) is provided with a solenoid valve (202) for opening and closing the sewage outlet.

8. A water supply device for a cooling tower according to claim 1 or 2, characterized in that: The elastic member (6) is a return spring, and the two ends of the return spring are respectively connected to the open end of the plunger (5) and the inner wall of the water injection pipe (4).

9. A water supply device for a cooling tower according to claim 1 or 2, characterized in that: The water supply pipeline is composed of a water tank (a) and a water distributor (b) connected to each other, and the water outlet end of the water tank (a) is connected to the water inlet end of the water inlet chamber (2), and the water inlet end of the water distributor (b) is connected to the water outlet end of the water outlet chamber (3).

Images