Air-cooled screw-type water chilling unit with cooling water capable of being filtered in split-flow mode

Abstract

The utility model relates to the technical field of water chilling units, and discloses an air-cooled screw type water chilling unit capable of shunting and filtering cooling water, which comprises a water chilling unit main body and a processing box, the water chilling unit main body is communicated with the processing box through a plurality of groups of shunting pipes, and a filtering assembly is arranged in each shunting pipe. And the filtering assembly comprises a filtering net, the filtering net is fixedly connected to the inner wall close to the end of the flow dividing pipe, a penetrating through hole is formed in the side wall of the filtering net, a driving shaft is rotationally connected into the through hole, an impeller is fixedly connected to the end of the driving shaft, a cavity is formed in the driving shaft, and a circular plate is slidably connected into the cavity. Impurities are intercepted and filtered through the filter screen, the purity of cooling water is ensured, water flow in the flow dividing pipe drives the impeller to rotate, the driving shaft rotates to drive the connecting rod and the cleaning brush to move to clean the surface of the filter screen, and therefore the filtering efficiency of the filter screen is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of water chillers, in particular to an air-cooled screw water chiller with shunt filtration of cooling water. Background Technique

[0002] An air-cooled screw water chiller is a device widely used in industrial and commercial cooling. It uses air as a cooling medium through a fan to reduce the temperature of cooling water. To improve its efficiency and reliability, the shunt filtration function of cooling water is introduced. This design can optimize the operation of the water chiller and extend its service life.

[0003] After retrieval, Chinese Patent Publication No.: CN112254364A discloses an air-cooled screw low-temperature water chiller. A filter is provided between the condenser and the evaporator of this water chiller. While multiple filter plates are arranged inside the filter for filtration, a filter screen is also provided for secondary filtration to increase the filtration effect during gas transmission. A locking nut is provided on the filter screen inside the filter for fixed connection, which is convenient for replacement during future maintenance, thus facilitating the maintenance of the present invention. A throttle valve is provided at one end of the filter to connect to the evaporator. A spherical valve is provided inside the throttle valve, and the spherical valve is rotationally connected through a rotating plate at the outer end of the throttle valve to facilitate flow control. A water pipe joint is provided at one end of the condenser, and a locking valve is provided on the water pipe joint to control the water flow, which is convenient for controlling the water flow transmission inside the condenser.

[0004] During the use of the above water chiller, although the filtration effect during gas transmission is solved, the filtration of the cooling water entering the condenser is lacking. Solid impurities, suspended particles, and minerals in the cooling water are deposited in the condenser, resulting in a reduction in heat exchange efficiency. Therefore, an air-cooled screw water chiller with shunt filtration of cooling water is proposed to solve the above problems. Summary of the Invention

[0005] In order to make up for the above deficiencies, the utility model provides an air-cooled screw water chiller with shunt filtration of cooling water, aiming to improve the problem that in the prior art, the filtration of the cooling water entering the condenser is lacking, and solid impurities, suspended particles, and minerals in the cooling water are deposited in the condenser, resulting in a reduction in heat exchange efficiency.

[0006] To achieve the above object, the present utility model adopts the following technical solution: An air-cooled screw chiller with shunt filtration of cooling water, comprising a chiller main body and a treatment tank. The chiller main body and the treatment tank are interconnected through multiple shunt pipes. A filtration assembly is provided inside the shunt pipe. The filtration assembly includes a filter screen, which is fixedly connected to the inner wall near the end of the shunt pipe. Through holes are formed in the side wall of the filter screen, and a drive shaft is rotatably connected in the through holes. An impeller is fixedly connected to the end of the drive shaft. A cavity is formed inside the drive shaft, and a circular plate is slidably connected inside the cavity. Multiple groups of through grooves are formed in an array on the outer wall of the drive shaft, and a connecting rod is slidably connected inside the through grooves.

[0007] As a further description of the above technical solution:

[0008] A plugging assembly is provided inside the treatment tank. The plugging assembly includes a support seat, which is fixedly connected to the inner wall of the treatment tank. The support seats are symmetrically arranged in two groups. A fixed seat is hinged inside the two support seats, and a semi-circular baffle is fixedly connected to the surface of the fixed seat.

[0009] As a further description of the above technical solution:

[0010] A hinge seat is fixedly connected to the bottom surface of the semi-circular baffle. A traction plate is hinged to the bottom surface of the hinge seat. The bottom ends of the two traction plates are hinged to a moving seat.

[0011] As a further description of the above technical solution:

[0012] A through hole is formed in the surface of the moving seat, and a threaded rod is threadedly connected in the through hole. The threaded rod penetrates and is rotatably connected to the bottom surface of the treatment tank.

[0013] As a further description of the above technical solution:

[0014] The circular plate is elastically connected to the inner wall of the cavity through a return spring.

[0015] As a further description of the above technical solution:

[0016] The connecting rod is fixedly connected to the side wall of the circular plate, and a cleaning brush is fixedly connected to the end of the connecting rod.

[0017] As a further description of the above technical solution:

[0018] A brake wheel is fixedly connected to the bottom end of the threaded rod.

[0019] As a further description of the above technical solution:

[0020] A connecting pipe is fixedly connected to the surface of the treatment box, and a sewage discharge pipe is fixedly connected to the side wall of the treatment box.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, impurities are intercepted and filtered by the filter screen to ensure the purity of the cooling water. The water flow in the shunt pipe drives the impeller to rotate. Under the action of the return spring, the cleaning brush always keeps close contact with the filter screen. The rotation of the drive shaft drives the connecting rod and the cleaning brush to move to clean the surface of the filter screen, so as to maintain the filtering efficiency of the filter screen.

[0023] 2. In the utility model, by operating the brake wheel to drive the threaded rod to rotate, the moving seat moves up and down accordingly, and the traction plate drives the semi-circular baffle to open or close, so as to divide the treatment box into two isolated spaces. One space can be used for impurity cleaning, and the other space can still continue to filter the cooling water, ensuring the continuous and stable operation of the water chiller. Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the overall structure of an air-cooled screw water chiller with shunt filtration of cooling water proposed by the utility model;

[0025] Figure 2 It is a schematic diagram of the sectional structure of the treatment box of an air-cooled screw water chiller with shunt filtration of cooling water proposed by the utility model;

[0026] Figure 3 It is a schematic diagram of the sectional structure of the filtration component of an air-cooled screw water chiller with shunt filtration of cooling water proposed by the utility model;

[0027] Figure 4 It is a schematic diagram of the enlarged structure at A of an air-cooled screw water chiller with shunt filtration of cooling water proposed by the utility model;

[0028] Figure 5 It is a schematic diagram of the structure of the plugging component of an air-cooled screw water chiller with shunt filtration of cooling water proposed by the utility model.

[0029] Legend:

[0030] 1. Water chiller main body; 2. Treatment box; 21. Connecting pipe; 22. Sewage discharge pipe; 3. Shunt pipe; 4. Filtration component; 41. Filter screen; 42. Drive shaft; 43. Impeller; 44. Cavity; 45. Circular plate; 46. Return spring; 47. Through groove; 48. Connecting rod; 49. Cleaning brush; 5. Plugging component; 51. Support seat; 52. Fixed seat; 53. Semi-circular baffle; 54. Hinge seat; 55. Traction plate; 56. Moving seat; 57. Threaded rod; 58. Brake wheel. Detailed implementation manners

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0032] Refer to Figure 1 - Figure 3 , an embodiment provided by the present utility model: an air-cooled screw chiller with shunt filtration of cooling water, including a chiller main body 1 and a treatment tank 2. A connecting pipe 21 is fixedly connected to the surface of the treatment tank 2, and a sewage discharge pipe 22 is fixedly connected to the side wall of the treatment tank 2. A valve is arranged on the surface of the sewage discharge pipe 22 for discharging impurities accumulated inside the treatment tank 2. The chiller main body 1 and the treatment tank 2 are interconnected through a multi-group shunt pipe 3. An external water source is connected through the connecting pipe 21 to inject cooling water into the treatment tank 2, and the cooling water is shunted through the shunt pipe 3 and input into the condenser in the chiller main body 1.

[0033] Refer to Figure 2 - Figure 3 , a filtering component 4 is arranged inside the shunt pipe 3. The filtering component 4 is used to filter impurities entering the shunt pipe 3 to prevent the heat exchange efficiency of the condenser from decreasing. The filtering component 4 includes a filter screen 41, and the filter screen 41 is fixedly connected to the inner wall near the end of the shunt pipe 3. The filter screen 41 is used to intercept and filter impurities to prevent them from entering the interior of the condenser. Through holes are formed through the side wall of the filter screen 41, and a driving shaft 42 is rotatably connected in the through holes. An impeller 43 is fixedly connected to the end of the driving shaft 42. The impeller 43 is driven to rotate by the water flow flowing through the shunt pipe 3, thereby driving the driving shaft 42 to rotate.

[0034] Refer to Figure 4, a cavity 44 is formed inside the drive shaft 42. A circular plate 45 is slidably connected inside the cavity 44. The circular plate 45 is elastically connected to the inner wall of the cavity 44 through a return spring 46. The cavity 44 is used to provide a space and track for the installation and movement of the circular plate 45, and the return spring 46 is used to provide a stable elastic support for the circular plate 45, so as to drive the circular plate 45 to move towards the filter screen 41. A plurality of groups of through grooves 47 distributed in an array are formed on the outer wall of the drive shaft 42. A connecting rod 48 is slidably connected inside the through groove 47. The connecting rod 48 is fixedly connected to the side wall of the circular plate 45. A cleaning brush 49 is fixedly connected to the end of the connecting rod 48. The through groove 47 is used to communicate the inside and outside of the drive shaft 42, provide a moving track for the connecting rod 48, and drive the connecting rod 48 and the cleaning brush 49 to closely fit with the filter screen 41 through the circular plate 45, so as to drive the cleaning brush 49 to clean the surface of the filter screen 41 through the drive shaft 42, so that the filter screen 41 can continuously provide a filtering function.

[0035] Refer to Figure 2 , Figure 5 , a plugging assembly 5 is arranged inside the processing box 2. The plugging assembly 5 is used to divide the processing box 2 into two upper and lower isolated spaces, so that while the processing box 2 removes impurities, the filtering effect on the cooling water is maintained. The plugging assembly 5 includes a support seat 51, which is fixedly connected to the inner wall of the processing box 2. There are two groups of support seats 51 arranged symmetrically. A fixed seat 52 is hinged inside the two groups of support seats 51. A semi-circular baffle 53 is fixedly connected to the surface of the fixed seat 52. The support seat 51 is used to position the fixed seat 52 and the semi-circular baffle 53, and enable the semi-circular baffle 53 to rotate around the hinge point between the fixed seat 52 and the support seat 51. A complete circle is formed by the two semi-circular baffles 53 and is closely attached to the inner wall of the processing box 2 to play a role in dividing the space. An articulated seat 54 is fixedly connected to the bottom surface of the semi-circular baffle 53. A traction plate 55 is hinged to the bottom surface of the articulated seat 54. The bottoms of the two traction plates 55 are hinged to a moving seat 56. The traction plate 55 is used to connect the moving seat 56 and the semi-circular baffle 53 together. By moving the moving seat 56 up and down, the opening and closing of the semi-circular baffle 53 are realized. A through hole is formed on the surface of the moving seat 56, and a threaded rod 57 is threadedly connected in the through hole. The threaded rod 57 passes through and is rotatably connected to the bottom surface of the processing box 2. A brake wheel 58 is fixedly connected to the bottom end of the threaded rod 57. The brake wheel 58 is used to drive the threaded rod 57 to rotate, so as to realize the movement of the moving seat 56.

[0036] Working principle: When the chiller starts to operate, the connecting pipe 21 introduces external water source into the treatment tank 2, and the cooling water flows into the condenser of the chiller main body 1 through the shunt pipe 3. Inside the shunt pipe 3, the filtering assembly 4 starts to work. The filter screen 41 intercepts and filters out impurities to ensure the purity of the cooling water. At the same time, the water flow in the shunt pipe 3 drives the impeller 43 to rotate. Under the action of the return spring 46, the cleaning brush 49 always keeps close contact with the filter screen 41. The rotation of the drive shaft 42 drives the connecting rod 48 and the cleaning brush 49 to move, and the cleaning brush 49 cleans the surface of the filter screen 41, so as to maintain the filtering efficiency of the filter screen 41.

[0037] Meanwhile, the blocking assembly 5 plays a role inside the treatment tank 2. The support seat 51 and the fixed seat 52 ensure the stability and positioning of the semi-circular baffle 53. When it is necessary to clean the impurities in the treatment tank 2, the brake wheel 58 is operated to drive the threaded rod 57 to rotate, and the moving seat 56 moves up and down accordingly. The traction plate 55 drives the semi-circular baffle 53 to open or close, so as to divide the treatment tank 2 into two isolated spaces. In this way, one space can be used for impurity cleaning, while the other space can still continue to filter the cooling water to ensure the continuous and stable operation of the chiller.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air-cooled screw chiller with shunt filtration of cooling water, comprising a chiller main body (1) and a treatment tank (2), characterized in that: The main body (1) of the chiller is interconnected with the processing tank (2) through a multi-component flow pipe (3). A filtering component (4) is arranged inside the flow pipe (3). The filtering component (4) includes a filter screen (41). The filter screen (41) is fixedly connected to the inner wall near the end of the flow pipe (3). Through holes are formed in the side wall of the filter screen (41), and a driving shaft (42) is rotatably connected in the through holes. An impeller (43) is fixedly connected to the end of the driving shaft (42). A cavity (44) is formed inside the driving shaft (42). A circular plate (45) is slidably connected inside the cavity (44). A plurality of groups of through grooves (47) distributed in an array are formed on the outer wall of the driving shaft (42). A connecting rod (48) is slidably connected inside the through grooves (47).

2. The air-cooled screw chiller with shunt filtration of cooling water according to claim 1, wherein: A blocking component (5) is arranged inside the processing tank (2). The blocking component (5) includes a support seat (51). The support seat (51) is fixedly connected to the inner wall of the processing tank (2). Two groups of the support seats (51) are symmetrically arranged. A fixing seat (52) is hinged inside the two groups of support seats (51). A semi-circular baffle (53) is fixedly connected to the surface of the fixing seat (52).

3. The air-cooled screw chiller with shunt filtration of cooling water according to claim 2, characterized in that: A hinge seat (54) is fixedly connected to the bottom surface of the semi-circular baffle (53). A traction plate (55) is hinged to the bottom surface of the hinge seat (54). The bottoms of the two groups of traction plates (55) are hinged to a moving seat (56).

4. An air-cooled screw chiller with shunt filtration of cooling water according to claim 3, characterized in that: A through hole is formed in the surface of the moving seat (56), and a threaded rod (57) is threadedly connected in the through hole. The threaded rod (57) penetrates and is rotatably connected to the bottom surface of the processing tank (2).

5. A water-cooled screw chiller with shunt filtration of cooling water, characterized in that: The circular plate (45) is elastically connected to the inner wall of the cavity (44) through a return spring (46).

6. A water-cooled screw chiller with shunt filtration of cooling water according to claim 1, characterized in that: The connecting rod (48) is fixedly connected to the side wall of the circular plate (45). A cleaning brush (49) is fixedly connected to the end of the connecting rod (48).

7. A water-cooled screw chiller with shunt filtration of cooling water, characterized in that: A brake wheel (58) is fixedly connected to the bottom end of the threaded rod (57).

8. A water-cooled screw chiller with shunt filtration of cooling water, characterized in that: A connecting pipe (21) is fixedly connected to the surface of the processing tank (2). A sewage discharge pipe (22) is fixedly connected to the side wall of the processing tank (2).

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