An industrial chiller

Abstract

The present invention belongs to the technical field of chillers, and specifically relates to an industrial chiller, comprising a purification device, a water inlet, a water outlet and a gas-liquid separator, wherein the water inlet is located at the lower left end of the purification device, and the water outlet is located at the top center of the purification device. The purification device comprises a shell, a filter element device and a top column, a retaining ring is arranged inside the shell, the retaining ring is located at the lower half of the shell, the filter element device is installed above the retaining ring, the filter element device comprises an upper cover plate, a lower cover plate and a filter screen, the upper cover plate is fixedly connected to the filter screen, the filter screen is fixedly connected to the lower cover plate, the top column is vertically installed inside the filter screen, the top column comprises a top plate and a top rod, the top plate and the inner side of the filter screen are slidably connected, an air pump is connected below the top column, and a cleaning brush is installed on the top rod. The present invention directly adopts the air pump as the power source, the structure is relatively simple, and the cost of later maintenance is reduced. The design of the top column realizes secondary filtration and improves the filtration effect.

Description

Technical Field

[0001] The invention belongs to the technical field of water chillers, and in particular relates to an industrial water chiller. Background Art

[0002] The working principle of industrial chillers is vapor compression refrigeration, that is, the liquid refrigerant absorbs heat when it vaporizes and releases heat when the steam condenses. Industrial chillers can provide chilled water with constant temperature, constant flow and constant pressure. During the operation of the UV laser chiller, a certain amount of water can be injected into the internal water tank of the machine, and the water can be cooled by the chiller refrigeration system. Then, the low-temperature frozen water is injected into the equipment that needs to be cooled by the water pump. The chilled water takes away the heat inside the machine and returns the high-temperature hot water to the water tank for cooling. In this way, the cooling cycle is exchanged to achieve the effect of cooling the equipment.

[0003] The existing air-cooled chiller utilizes a shell and tube evaporator to exchange heat between water and refrigerant. After the refrigerant system absorbs the heat load in the water and cools the water to produce chilled water, the heat is brought to the finned condenser through the action of the refrigeration compressor, and then dissipated into the outside air by the heat dissipation fan. Before operation, water is injected into the water tank. The injected water is not filtered, and impurities and dust may be mixed in the water. At the same time, during the process of circulating heating and cooling the water flow, impurities such as rust and scale in the water quality gradually increase, which leads to excessive impurities in the water quality. However, the existing air-cooled chiller does not have a filtering device. Usually, unfiltered water enters the chiller, which may cause blockage of the cooling water circulation loop. At the same time, impurities entering the chiller will cause wear of various parts and pipes in the water circulation system, reduce service life, and increase maintenance costs.

[0004] In view of this, the present invention is proposed to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide an industrial chiller. The specific problem to be solved by the present invention is that the existing air-cooled chillers do not have a filtering device. Usually, unfiltered water enters the chiller, which may cause blockage of the cooling water circulation loop. At the same time, impurities entering the chiller will cause wear of various parts and pipes in the water circulation system, reduce service life, and increase maintenance costs.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An industrial chiller, comprising a purification device, a water inlet, a water outlet and a gas-liquid separator, wherein the water inlet is located at the lower left end of the purification device, the water outlet is located at the top center of the purification device, the purification device comprises a shell, a filter element device and a top column, a retaining ring is arranged inside the shell, and the retaining ring is located at the lower half of the shell;

[0008] The filter element device is installed above the retaining ring, and the filter element device includes an upper cover plate, a lower cover plate and a filter screen, the upper cover plate is fixedly connected to the filter screen, and the filter screen is fixedly connected to the lower cover plate;

[0009] The top column is vertically installed inside the filter screen. The top column includes a top plate and a top rod. The top plate is slidably connected to the inner side of the filter screen. An air pump is connected below the top column. A cleaning brush is installed on the top rod.

[0010] Preferably, a raised sleeve is provided below the outer shell, the inner wall of the sleeve is slidingly and sealingly connected to the outer wall of the push rod, the retaining ring and the bottom of the outer shell form a raw liquid chamber, and the outer side of the filter screen and the inner wall of the outer shell form a filtrate chamber.

[0011] Preferably, the top plate is provided with a chamfer, and the upper cover plate is detachably mounted on the top of the housing by bolts.

[0012] Preferably, two groups of air vents are provided on the side wall at the upper end of the top column, and the two groups of air vents are distributed in a circular shape with equal intervals. A cleaning head is installed on one side of the air vent away from the center of the top column. The cleaning head is a horizontally placed cylinder, and a horizontal through hole is provided on the cleaning head along the axis of the cylinder. A fixing plate is fixed in the through hole, and a plurality of bristles are fixed to the surface of the fixing plate on one side away from the center of the top column, with gaps left between the bristles, and the bristles are in contact with the inner wall of the filter.

[0013] Preferably, a blade fixing frame is installed in the top column, the blade fixing frame is fixedly connected to the inner wall of the top column, the blade fixing frame is composed of a plurality of connecting rods equidistantly arranged in a ring, and a blade is fixedly connected below the blade fixing frame;

[0014] The blade fixing frame and the blades are matched in a plurality of groups and are distributed vertically and equidistantly.

[0015] Preferably, the water outlet is connected to the gas-liquid separator through a pipeline.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. A raised sleeve is provided under the outer shell, and the top column reciprocates up and down along the sleeve, which increases the contact area between the top column and the sleeve, improves the guiding effect and ensures the sealing effect. The inner wall of the sleeve and the outer wall of the top rod are slidingly sealed and connected. Unfiltered water enters the raw liquid chamber through the water inlet, and then enters the area between the outer shell and the filter in the lower part of the filter along the area between the filter and the top column. Then the water flows through the upper part of the filter and flows into the top of the inner top plate of the filter. After secondary filtration, it is finally discharged through the water outlet.

[0018] 2. Two sets of air vents are provided on the side wall at the upper end of the top column, and the air flows into the interior of the cleaning head through the air vents. At the same time, the air pressure provided by the air pump presses the water pressure near the cleaning head toward the filter, which has a certain pressure relief effect. At the same time, the air pressure in the top column can be adjusted by adjusting the ventilation flow of the air pump, thereby adjusting the pressure difference between the upper and lower parts of the top plate to achieve the up and down reciprocating motion of the top column. The movement of the top column can also be changed with the air flow by controlling the periodic changes of the air pump ventilation. The air vents are distributed in a circular shape with equal intervals, so that the air flow can flow into the air vents evenly and spray evenly on the inner wall of the filter. The cleaning head is placed horizontally and has through holes. In addition to the cleaning of the inner wall of the filter by the bristles, the sprayed air flow can also enhance the cleaning effect.

[0019] 3. A blade fixing frame is installed in the top column and is fixedly connected to the inner wall of the top column. The blade fixing frame is composed of a number of connecting rods equidistantly arranged in a ring. The airflow flows through the gaps left between the fixing frames and passes through the blades to drive the blades to rotate. Since the blades are fixed to the top column through the blade fixing frame, the top column is driven to rotate by the blades, and the cleaning brush is also driven to rotate, thereby increasing the cleaning effect. The blade fixing frame and the blades are coordinated in several groups with vertical and equidistant distribution, thereby enhancing the utilization efficiency of the airflow, thereby increasing the rotation force. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 A magnified view of point I;

[0022] Figure 3 is a schematic diagram of a blade fixing frame and a blade of the present invention;

[0023] Figure 4 For the present invention Figure 2 The enlarged view of II;

[0024] In the figure: purification device 1, shell 11, retaining ring 111, filter element device 12, upper cover plate 121, bolts 1211, lower cover plate 122, filter screen 123, top column 13, top plate 131, top rod 132, vent 1321, cleaning brush 133, cleaning head 1331, fixing plate 1332, bristles 1333, blade fixing frame 134, blade 1341, sleeve 14, raw liquid chamber 15, filtrate chamber 16, water inlet 2, water outlet 3, gas-liquid separator 4, air pump 5. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] See also Figures 1 to 4 In an embodiment of the present invention, an industrial chiller comprises a purification device 1, a water inlet 2, a water outlet 3 and a gas-liquid separator 4, wherein the water inlet 2 is located at the lower left end of the purification device 1, the water outlet 3 is located at the top center of the purification device 1, the purification device 1 comprises a housing 11, a filter element device 12 and a top column 13, a retaining ring 111 is arranged inside the housing 11, and the retaining ring 111 is located at the lower half of the housing 11;

[0027] The filter element device 12 is installed above the retaining ring 111, and the filter element device 12 includes an upper cover plate 121, a lower cover plate 122 and a filter screen 123, wherein the upper cover plate 121 is fixedly connected to the filter screen 123, and the filter screen 123 is fixedly connected to the lower cover plate 122;

[0028] The top column 13 is vertically installed inside the filter 123. The top column 13 includes a top plate 131 and a top rod 132. The top plate 131 is slidably connected to the inner side of the filter 123. An air pump 5 is connected below the top column 13. A cleaning brush 133 is installed on the top rod 132.

[0029] When water enters the water inlet 2 and the air pump 5 provides air pressure, the airflow enters the top column 13, and the water flows upward through the retaining ring 111 inside the outer shell 11. The airflow passes through the inside of the top rod 132, providing power to the top column 13, realizing the up and down reciprocating motion of the top column 13, driving the cleaning brush 133 to reciprocate up and down, so as to achieve the cleaning effect of the filter 123.

[0030] As an embodiment of the present invention, there is a raised sleeve 14 under the outer shell 11, the inner wall of the sleeve 14 is slidingly and sealingly connected to the outer wall of the top rod 132, the retaining ring 111 and the bottom of the outer shell 11 form a raw liquid chamber 15, and the outer side of the filter screen 123 and the inner wall of the outer shell 11 form a filtrate chamber 16.

[0031] A raised sleeve 14 is provided under the outer shell 11, and the top column 13 reciprocates up and down along the sleeve 14, which increases the contact area between the top column 13 and the sleeve 14, improves the guiding effect and ensures the sealing effect. The inner wall of the sleeve 14 is slidably and sealedly connected with the outer wall of the top rod 132. Unfiltered water enters the raw liquid chamber 15 through the water inlet 2, and then enters the lower half of the filter screen 123 and the area between the outer shell 11 and the filter screen 123 along the area between the filter screen 123 and the top column 13. Then the water flows through the upper half of the filter screen 123 and flows into the top of the inner top plate 131 of the filter screen 123. After secondary filtration, it is finally discharged through the water outlet 3.

[0032] As an embodiment of the present invention, the top plate 131 is provided with a chamfer, and the upper cover plate 121 is detachably mounted on the top of the housing 11 by bolts 1211 .

[0033] The top plate 131 is installed on the inner side of the filter 123 and is chamfered to reduce the contact area between the side wall of the top plate 131 and the filter 123, thereby reducing the friction between the outer wall of the top plate 131 and the inner side of the filter 123. The upper cover plate 121 is configured as a detachable structure to facilitate the replacement of the filter 123 and the installation of the top column 13 as well as the maintenance and repair of the top column 13.

[0034] As an embodiment of the present invention, two groups of air vents 1321 are provided on the side wall at the upper end of the top column 13, and the two groups of air vents 1321 are distributed in a circular shape with equal intervals. A cleaning head 1331 is installed on one side of the air vent 1321 away from the center of the top column 13. The cleaning head 1331 is a horizontally placed cylinder, and a horizontal through hole is provided on the cleaning head 1331 along the axis of the cylinder. A fixing plate 1332 is fixed in the through hole, and a plurality of bristles 1333 are fixed on the surface of the fixing plate 1332 away from the center of the top column 13, with gaps left between the bristles 1333, and the bristles 1333 are in contact with the inner wall of the filter 123.

[0035] Two groups of air vents 1321 are provided on the side wall at the upper end of the top column 13, and air flows into the interior of the cleaning head 1331 through the air vents 1321. At the same time, the air pressure provided by the air pump 5 presses the water pressure near the cleaning head 1331 toward the filter 123, which has a certain pressure relief effect. At the same time, the air pressure in the top column 13 can be adjusted by adjusting the ventilation flow of the air pump 5, so as to adjust the pressure difference between the upper and lower sides of the top plate 131 to achieve the up and down reciprocating motion of the top column 13. The movement of the top column 13 can also be changed with the change of the air flow by controlling the periodic change of the ventilation of the air pump 5. The air vents 1321 are distributed in a ring shape with equal intervals, so that the air flow can flow into the air vents 1321 evenly and be sprayed evenly on the inner wall of the filter 123. The cleaning head 1331 is placed horizontally and has through holes. In addition to the cleaning of the inner wall of the filter 123 by the bristles 1333, the sprayed air flow can also enhance the cleaning effect.

[0036] As an embodiment of the present invention, a blade fixing frame 134 is installed in the top column 13, and the blade fixing frame 134 is fixedly connected to the inner wall of the top column 13. The blade fixing frame 134 is composed of a plurality of connecting rods arranged in an equidistant ring, and a blade 1341 is fixedly connected below the blade fixing frame 134;

[0037] The blade fixing frame 134 and the blades 1341 are matched in a plurality of groups and are distributed vertically and equidistantly.

[0038] A blade fixing frame 134 is installed in the top column 13 and is fixedly connected to the inner wall of the top column 13. The blade fixing frame 134 is composed of a plurality of connecting rods arranged in an equidistant ring. When the air supply of the air pump 5 increases, the air flow flows through the gaps left between the blade fixing frames 134 and passes through the blades 1341. The air pressure inside the top column 13 rises, driving the top column 13 to move upward. At this time, the gas pressure is high and the air flow pressure is large, driving the blades 1341 to rotate. Since the blades 1341 are fixed to the top column 13 through the blade fixing frame 134, the top column 13 is driven by the blades 1341. The top column 13 rotates dynamically, and the cleaning brush 133 is also driven to rotate, thereby increasing the cleaning effect. When the air supply of the air pump 5 decreases, the air pressure in the top column 13 decreases. Under the action of the water pressure outside the top column 13, the top column 13 moves downward. The reduced airflow is not enough to drive the top column 13 to rotate as a whole, but due to inertia, the top column 13 will still rotate for a period of time, thereby cleaning the inner wall of the filter screen 123. The blade fixing frame 134 and the blade 1341 are matched in a number of groups with equal vertical spacing, thereby enhancing the utilization efficiency of the airflow, thereby increasing the rotation force.

[0039] As an embodiment of the present invention, the water outlet 3 is connected to the gas-liquid separator 4 through a pipeline.

[0040] The function of the gas-liquid separator 4 is to separate gas from water, separate the gas sprayed into the water by the top column 13, ensure the pressure stability in the system, and ensure the purity of the water after filtration.

[0041] Working principle: Water enters from the water inlet 2. When the air supply of the air pump 5 increases, the air flow flows through the gap between the blade fixing frame 134 and passes through the blade 1341. The air pressure inside the top column 13 rises, driving the top column 13 to move upward. At this time, the gas pressure is high and the air flow pressure is large, driving the blade 1341 to rotate. Because the blade 1341 is fixed on the top through the blade fixing frame 134, the top column 13 is driven to rotate by the blade 1341, and the cleaning brush 133 is also driven to rotate, which increases the cleaning effect. When the air supply of the air pump 5 decreases, the air pressure inside the top column 13 decreases. Under the action of the water pressure outside the top column 13, the top column 13 moves downward. The air flow reduction is not enough to drive the top column 13 to rotate as a whole, but due to inertia The top column 13 will continue to rotate for a period of time to clean the inner wall of the filter 123. At this time, the top column 13 drives the cleaning brush 133 to rotate and move up and down, and the cleaning effect of the filter 123 is improved. The unfiltered water enters the raw liquid chamber 15 through the water inlet, and then enters the lower part of the filter 123 and the area between the outer shell 11 and the filter 123 along the area between the filter 123 and the top column 13. Then the water flows through the upper part of the filter 123 and flows into the top of the inner top plate of the filter 123. After the secondary filtration, it is finally discharged through the water outlet 3, and then passes through the gas-liquid separator 4 to separate the gas and liquid in the water after the secondary filtration, so as to finally ensure the purity of the filtered water.

[0042] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not exist, the above embodiments only express several implementation methods of the present invention. The description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present invention, several variations and improvements can be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. An industrial chiller, comprising a purification device (1), a water inlet (2), a water outlet (3) and a gas-liquid separator (4), wherein the water inlet (2) is located at the lower left end of the purification device (1), and the water outlet (3) is located at the top center of the purification device (1), characterized in that: The purification device (1) comprises a housing (11), a filter element device (12) and a top column (13); a retaining ring (111) is arranged inside the housing (11); the retaining ring (111) is located at the lower half of the housing (11); the filter element device (12) is installed above the retaining ring (111); the filter element device (12) comprises an upper cover plate (121), a lower cover plate (122) and a filter screen (123); the upper cover plate (121) and the filter screen (123) are connected to each other. The filter screen (123) is fixedly connected to the filter screen (123), and the filter screen (123) is fixedly connected to the lower cover plate (122); the top column (13) is vertically installed inside the filter screen (123), the top column (13) comprises a top plate (131) and a top rod (132), the top plate (131) and the inner side of the filter screen (123) are slidably connected, an air pump (5) is connected below the top column (13), and a cleaning brush (133) is installed on the top rod (132); A protruding sleeve (14) is provided below the outer shell (11); the inner wall of the sleeve (14) is slidably sealedly connected to the outer wall of the push rod (132); the retaining ring (111) and the bottom of the outer shell (11) form a raw liquid chamber (15); and the outer side of the filter screen (123) and the inner wall of the outer shell (11) form a filtrate chamber (16); The upper side wall of the top column (13) is provided with two groups of vents (1321), and the two groups of vents (1321) are distributed in a circular shape with equal spacing. A cleaning head (1331) is installed on one side of the vents (1321) away from the center of the top column (13). The cleaning head (1331) is a horizontally placed cylinder. The cleaning head (1331) is provided with a horizontal through hole along the axis of the cylinder. A fixing plate (1332) is fixedly connected in the through hole. A plurality of bristles (1333) are fixedly connected to the surface of one side of the fixing plate (1332) away from the center of the top column (13). Gaps are left between the bristles (1333), and the bristles (1333) are in contact with the inner wall of the filter screen (123). A blade fixing frame (134) is installed in the top column (13), and the blade fixing frame (134) is fixedly connected to the inner wall of the top column (13), and the blade fixing frame (134) is composed of a plurality of connecting rods arranged in an equidistant ring, and a blade (1341) is fixedly connected below the blade fixing frame (134); the blade fixing frame (134) and the blade (1341) are matched to form a plurality of groups distributed vertically and equidistantly; The water outlet (3) is connected to the gas-liquid separator (4) via a pipeline; The top plate (131) is provided with a chamfer, and the upper cover plate (121) is detachably mounted on the top of the housing (11) by means of bolts (1211); Water enters from the water inlet (2). When the air supply of the air pump (5) increases, the air flow flows through the gap between the blade fixing frame (134) and passes through the blade (1341). The air pressure inside the top column (13) rises, driving the top column (13) to move upward. At this time, the gas pressure is relatively high, and the air flow pressure is relatively large, driving the blade (1341) to rotate. Since the blade (1341) is fixed to the top column (13) through the blade fixing frame (134), it is driven to rotate by the blade (1341). At the same time, the cleaning brush (133) is also driven to rotate. Two sets of vents (1321) are provided on the upper side wall of the top column (13). The air flow passes through the vents. (1321) flows into the interior of the cleaning head (1331), and at the same time, the air pressure provided by the air pump (5) presses the water pressure near the cleaning head (1331) toward the filter (123), which has a certain pressure relief effect. At the same time, the air pressure in the top column (13) can be adjusted by adjusting the ventilation flow of the air pump (5), so as to adjust the pressure difference between the top plate (131) and the top column (131) to achieve the up and down reciprocating movement of the top column (13). The movement of the top column (13) can also be changed with the change of the air flow by controlling the periodic change of the ventilation of the air pump (5). The air vents (1321) are distributed in a circular shape with equal spacing, so that the air flow can flow into the ventilation evenly. The cleaning head (1331) is placed horizontally and has a through hole. In addition to the cleaning of the inner wall of the filter (123) by the bristles (1333), the ejected airflow can also enhance the cleaning effect. When the air supply of the air pump (5) decreases, the air pressure in the top column (13) decreases. Under the action of the external water pressure of the top column (13), the top column (13) moves downward. The reduced airflow is not enough to drive the top column (13) to rotate as a whole. However, due to the inertia, the top column (13) will still rotate for a period of time to clean the inner wall of the filter (123). At this time, the top column (13) is The dynamic cleaning brush (133) rotates and moves up and down, thereby improving the cleaning effect of the filter (123). Unfiltered water enters the raw liquid chamber (15) through the water inlet, and then enters the lower half of the filter (123) and the area between the outer shell (11) and the filter (123) along the area between the filter (123) and the top column (13). Then, the water flows through the upper half of the filter (123) and flows above the inner top plate of the filter (123). After secondary filtration, the water is finally discharged through the water outlet (3), and then passes through the gas-liquid separator (4) to separate the gas and liquid in the water after the secondary filtration.

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