Automatic dosing device of machine room cooling water system

Abstract

The invention discloses an automatic dosing device for a machine room cooling water system, and relates to the technical field of cooling water treatment.The automatic dosing device comprises a tank body, and a top cover is fixedly installed at the top of the tank body; a rotating rod and a liquid inlet pipe rotationally penetrate through the surface of the top cover, and the liquid inlet pipe fixedly penetrates through the inner wall and the outer wall of the top cover and is used for guiding cooling water into the tank body; a medicine storage tank is fixedly mounted at the top of the top cover, a floating plate is slidably mounted in the tank body, and a quantitative pipe fixedly penetrates through the surface of the top cover; and after the sealing plug moves, the top of the chemical adding pipe is not blocked any more, so that chemicals stored in the quantitative pipe flow into the chemical adding pipe and are guided into the tank body, the chemicals can be automatically added into the tank body after cooling water stored in the device reaches enough scales, manual operation is not needed any more, and labor input is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cooling water treatment, in particular to an automatic dosing device for a cooling water system in a machine room. Background Art

[0002] The automatic dosing device of the computer room cooling water system is mainly used in the computer room cooling system. It adjusts the water quality through automatic control to ensure the normal operation of the system and extend the service life of the equipment.

[0003] The patent with patent announcement number CN206014432U relates to an automatic dosing device for the cooling water system of a machine room, including a mixing drum, a feeding drum is provided at the upper right end of the mixing drum, a feeding funnel is provided at the upper right end of the feeding drum, and a feeding mechanism is provided inside the feeding drum. The feeding mechanism includes a feeding screw and screw blades arranged on the outer wall of the feeding screw. The right end of the feeding screw is connected to the motor, and a pre-crushing mechanism is provided on the right section of the feeding drum. This patent can realize automatic water and agent addition, can fully stir the water and agent, and can effectively crush and refine the agent, effectively improving the stirring effect and efficiency. In addition, the dosing is automatically controlled by the controller, with a high degree of automation, which reduces the difficulty and intensity of the operator's work.

[0004] In the above patent, water and chemicals can be fully stirred, and the chemicals can be effectively crushed and refined, which effectively improves the stirring effect and efficiency. In addition, the adding of chemicals is automatically controlled by the controller, with a high degree of automation, which reduces the difficulty and intensity of the operator's work. However, when adding chemicals to the cooling water, the chemicals must be added to the cooling water when the cooling water has reached a sufficient scale. If the chemicals are not added in time by humans, it will affect the working efficiency of the device and there is a risk. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides an automatic dosing device for a cooling water system in a machine room, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic dosing device for a cooling water system in a machine room, comprising a tank body, a top cover being fixedly mounted on the top of the tank body; A liquid inlet pipe, which is fixedly connected to the inner and outer walls of the top cover and is used to introduce cooling water into the interior of the tank body; A medicine storage tank is fixedly installed on the top of the top cover, a rotating rod is rotatably passed through the surface of the top cover, a servo motor is provided on the top of the tank body, the rotating rod is driven by the servo motor, a floating plate is slidably installed inside the tank body, and a quantitative tube is fixedly passed through the surface of the top cover; A dosing tube, which is fixedly mounted at the bottom of the metering tube and is used to introduce the medicine in the metering tube into the tank body; A sealing cover is fixedly installed inside the metering tube, and a vertical rod is fixedly installed on the top of the floating plate, and the vertical rod slides through the inner and outer walls of the metering tube, and a rounded plate is slidably installed on the inner wall of the metering tube, and the rounded plate is fixedly connected to the end of the vertical rod away from the floating plate, and a sealing plug is fixedly installed on the bottom of the rounded plate. After the sealing plug moves, it no longer blocks the top of the dosing tube, so that the medicine stored in the metering tube flows into the interior of the dosing tube and is introduced into the interior of the tank body. A liquid blocking rod is fixedly installed on the top of the rounded plate, and the movement of the rounded plate drives the liquid blocking rod to move toward the top. After the liquid blocking rod moves, it will contact the sealing cover and seal the bottom of the sealing cover. The interior of the tank body is provided with a limiting device for limiting the floating plate and a protective device for improving the stability of the limiting device during operation.

[0007] According to the above technical solution, the sealing plug is in contact with the drug adding pipe, and a drug inlet hole is provided on the surface of the drug storage tank, through which drugs are added to the interior of the drug storage tank.

[0008] According to the above technical solution, the limit device includes: a kit, a limit block, a rotating plate, a triangular block and an arc block. The kit is fixedly installed on the circumferential surface of the vertical rod, the limit block is fixedly installed on the surface of the kit, the rotating plate is rotatably installed on the surface of the quantitative tube, and the triangular block is fixedly installed on one side of the rotating plate. The rotating plate resets and drives the triangular block to rotate in the opposite direction and blocks the limit block, so that the limit block cannot move to the bottom, so that the device will be limited after the liquid blocking rod seals the cover, and the arc block is fixedly installed on the other side of the rotating plate, and the circumferential surface of the rotating rod is rotatably installed with a lifting rod, and the lifting rod is rotatably installed with a ring at the end away from the rotating rod. The rotating plate rotates and drives the triangular block to rotate. After the triangular block rotates, it no longer limits the limit block, so that the floating plate is reset by gravity.

[0009] According to the above technical solution, a No. 1 torsion spring is provided between the rotating rod and the lifting rod, and the circular ring contacts the arc block. When the rotating rod stops rotating, the No. 1 torsion spring drives the lifting rod to reset.

[0010] According to the above technical solution, a No. 2 torsion spring is provided between the rotating plate and the quantitative tube, and the limit block is in contact with the triangular block. When the arc block is no longer in contact with the circular ring, the No. 2 torsion spring drives the rotating plate to reset.

[0011] According to the above technical solution, the protective device includes: a cylinder, a sliding plate, a transmission column, a transmission rod, a one-way gear rod, a ramp block, a stop block, a U-shaped rod and a sealing baffle, the cylinder is fixedly mounted on the bottom of the top cover, the circumferential surface of the cylinder is provided with an air outlet, the sliding plate is slidably mounted on the inner wall of the cylinder, the transmission column is rotatably mounted on the bottom of the sliding plate, the transmission rod is rotatably mounted on the bottom of the transmission column, the one-way gear rod is fixedly mounted on the bottom of the transmission column, the ramp block is fixedly mounted on the bottom of the cylinder, and the stop block is fixedly mounted on The circumferential surface of the transmission column, the U-shaped rod is fixedly installed on the circumferential surface of the transmission column, the sealing baffle is rotatably installed on the circumferential surface of the cylinder, and the end of the U-shaped rod away from the transmission column is slidably installed on the circumferential surface of the sealing baffle. The speed of the sliding plate when moving toward the bottom is limited, so that the speed of the floating plate when moving toward the bottom is limited, so that the liquid surface has sufficient time to stand still, the rotation of the block drives the transmission column to rotate, the rotation of the transmission column drives the U-shaped rod to rotate, the rotation of the U-shaped rod drives the sealing baffle to rotate, and the sealing baffle no longer blocks the air outlet after rotation.

[0012] According to the above technical solution, a No. 3 torsion spring is arranged between the transmission rotating rod and the transmission column. The transmission rotating rod is in contact with the one-way gear lever. The No. 3 torsion spring drives the transmission rotating rod to reset when the transmission rotating rod is no longer in contact with the ring.

[0013] According to the above technical solution, a spring is provided between the sliding plate and the cylinder, the sealing baffle is in contact with the air outlet, and the spring drives the sliding plate to reset when the transmission rotating rod is no longer in contact with the ring.

[0014] The present invention provides an automatic dosing device for a cooling water system in a machine room. It has the following beneficial effects: (1) This invention, after the sealing plug is moved, no longer blocks the top of the dosing tube, allowing the medicine stored in the metering tube to flow into the inside of the dosing tube and be introduced into the inside of the tank body, so that the device will automatically add medicine to the inside of the tube body after the cooling water stored inside reaches a sufficient scale, and no manual operation is required, which reduces labor input and improves the working efficiency of the device. The liquid blocking rod is driven to move toward the top by the movement of the rounded plate. After the movement, the liquid blocking rod contacts the sealing cover and seals the bottom of the sealing cover, so that the device only adds a fixed amount of medicine each time it adds medicine. By accurately controlling the amount of medicine added, it can effectively prevent corrosion and scaling inside the cooling system and extend the service life of the equipment.

[0015] (2) This invention drives the triangular block to rotate in the opposite direction by resetting the rotating plate and blocks the limit block, so that the limit block cannot move to the bottom. After the liquid blocking rod seals the cover, the device will be limited to prevent the water surface from being no longer stable during stirring, causing the floating plate to move up and down, resulting in excessive flow of medicine inside the medicine storage tank into the tank body, thereby improving the stability and reliability of the device during operation. By rotating the rotating plate, the triangular block is driven to rotate. After the triangular block rotates, it no longer limits the limit block, so that the floating plate is reset by gravity. The device limits the floating plate when stirring and releases the limit when stirring is completed, further improving the reliability of the device.

[0016] (3) This invention limits the speed of the sliding plate when it moves toward the bottom, which in turn limits the speed of the floating plate when it moves toward the bottom. This allows the liquid surface to have sufficient time to settle, preventing the floating plate from shaking when the liquid surface is not in a stationary state, thereby better controlling the treatment effect of the cooling water and preventing scale growth and corrosion. The rotation of the block drives the transmission column to rotate, which in turn drives the U-shaped rod to rotate, which in turn drives the sealing baffle to rotate. After the sealing baffle rotates, it no longer blocks the air outlet, so that the device will not be restricted when it is reset, thereby improving the reset speed and stability of the device and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the tank body of the present invention; Figure 3 This is a schematic diagram of the internal structure of the tank body of the present invention; Figure 4 This is a schematic diagram of the internal structure of the quantitative tube of the present invention; Figure 5 This is a schematic structural diagram of the positional relationship between the ring and the lifting rod of the present invention; Figure 6 This is a schematic structural diagram of the protective device of the present invention; Figure 7 It is a partial structural diagram of the protective device of the present invention; Figure 8 It is a schematic diagram of the internal structure of the cylinder of the present invention.

[0018] In the figure: 1. tank body; 2. liquid inlet pipe; 3. top cover; 5. medicine storage tank; 7. rotating rod; 8. floating plate; 9. dosing pipe; 10. metering tube; 11. sealing cap; 12. vertical rod; 13. fillet plate; 14. sealing plug; 15. liquid blocking rod; 161. kit; 162. limit block; 163. rotating plate; 164. triangular block; 165. arc block; 166. lifting rod; 167. ring; 171. cylinder; 172. sliding plate; 173. transmission column; 174. transmission rotating rod; 175. one-way gear lever; 176. inclined block; 177. stop block; 178. U-shaped rod; 179. sealing baffle. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0020] See also Figures 1-4 , one embodiment of the present invention is: an automatic dosing device for a cooling water system in a machine room, comprising a tank body 1, a top cover 3 being fixedly mounted on the top of the tank body 1; The liquid inlet pipe 2 is fixedly connected to the inner and outer walls of the top cover 3 and is used to introduce cooling water into the interior of the tank body 1; A medicine storage tank 5 is fixedly installed on the top of the top cover 3. A rotating rod 7 is rotatably passed through the surface of the top cover 3. A servo motor is provided on the top of the tank body 1. The rotating rod is driven by the servo motor. A floating plate 8 is slidably installed inside the tank body 1. A quantitative tube 10 is fixedly passed through the surface of the top cover 3. The dosing pipe 9 is fixedly installed at the bottom of the quantitative tube 10 and is used to introduce the medicine inside the quantitative tube 10 into the interior of the tank body 1; A sealing cover 11 is fixedly installed inside the metering tube 10, and a vertical rod 12 is fixedly installed on the top of the floating plate 8. The vertical rod 12 slides through the inner and outer walls of the metering tube 10, and a rounded plate 13 is slidably installed on the inner wall of the metering tube 10. The rounded plate 13 is fixedly connected to the end of the vertical rod 12 away from the floating plate 8. A sealing plug 14 is fixedly installed on the bottom of the rounded plate 13, so that the device will automatically add reagents to the inside of the tube body after the cooling water stored inside reaches a sufficient scale, and manual operation is no longer required, reducing labor input and improving the working efficiency of the device. A liquid blocking rod 15 is fixedly installed on the top of the rounded plate 13, so that the device will only add a fixed amount of reagents each time the reagents are added. By accurately controlling the amount of reagents added, corrosion and scaling inside the cooling system can be effectively prevented, thereby extending the service life of the equipment.

[0021] The sealing plug 14 is in contact with the drug adding pipe 9 , and a drug inlet hole is provided on the surface of the drug storage tank 5 , through which drugs are added to the interior of the drug storage tank 5 .

[0022] When this embodiment is working: cooling water is introduced into the interior of the tank body 1 through the liquid inlet pipe 2. After the interior of the tank body 1 reaches sufficient cooling water, the cooling water drives the floating plate 8 to move toward the top, and the floating plate 8 moves toward the top, driving the vertical rod 12 to move toward the top, and the vertical rod 12 moves and drives the rounded plate 13 to move toward the top, and the rounded plate 13 moves and drives the sealing plug 14 to move toward the top. After the sealing plug 14 moves, it no longer blocks the top of the dosing tube 9, so that the medicine stored in the quantitative tube 10 flows into the inside of the dosing tube 9 and is introduced into the interior of the tank body 1. Then, the servo motor is started, and the output end of the servo motor rotates to drive the rotating rod 7 to rotate. After the rotating rod 7 rotates, the cooling water and the medicine in the tube body are stirred, so that When the cooling water stored in the device reaches a sufficient scale, it will automatically add medicine to the inside of the tube body, and manual operation is no longer required, which reduces labor input and improves the working efficiency of the device. When the sealing plug 14 seals the dosing tube 9, the medicine inside the medicine storage tank 5 flows into the inside of the quantitative tube 10 through the cover 11, and the rounded plate 13 moves to drive the liquid blocking rod 15 to move to the top. After the liquid blocking rod 15 moves, it will contact the cover 11 and seal the bottom of the cover 11, so that the device will only add a fixed amount of medicine each time it adds medicine. By accurately controlling the amount of medicine added, corrosion and scaling inside the cooling system can be effectively prevented, thereby extending the service life of the equipment.

[0023] See also Figures 1-8 On the basis of the above embodiment, in another embodiment of the present invention, a limiting device for limiting the floating plate 8 and a protective device for improving the stability of the limiting device during operation are provided inside the tank body 1, wherein the limiting device includes: a set 161, a limiting block 162, a rotating plate 163, a triangular block 164 and an arc block 165, the set 161 is fixedly mounted on the circumferential surface of the vertical rod 12, the limiting block 162 is fixedly mounted on the surface of the set 161, the rotating plate 163 is rotatably mounted on the surface of the quantitative tube 10, and the triangular block 164 is fixedly mounted on the One side of the rotating plate 163 prevents the water surface from becoming unstable during stirring, causing the floating plate 8 to move up and down, resulting in excessive flow of medicine inside the medicine storage tank 5 into the tank body 1, thereby improving the stability and reliability of the device during operation. The arc block 165 is fixedly installed on the other side of the rotating plate 163, and a lifting rod 166 is rotatably installed on the circumferential surface of the rotating rod 7. A ring 167 is rotatably installed on the end of the lifting rod 166 away from the rotating rod 7, so that the device will limit the floating plate 8 when stirring and release the limit when stirring is completed, further improving the reliability of the device.

[0024] A torsion spring No. 1 is provided between the rotating rod 7 and the lifting rod 166. The circular ring 167 contacts the arc block 165. The torsion spring No. 1 drives the lifting rod 166 to reset when the rotating rod 7 stops rotating.

[0025] A second torsion spring is provided between the rotating plate 163 and the quantitative tube 10 , and the limit block 162 is in contact with the triangular block 164 . The second torsion spring drives the rotating plate 163 to reset when the arc block 165 is no longer in contact with the ring 167 .

[0026] The protective device includes: a cylinder 171, a sliding plate 172, a transmission column 173, a transmission rod 174, a one-way gear rod 175, a ramp block 176, a stop block 177, a U-shaped rod 178 and a sealing baffle 179. The cylinder 171 is fixedly mounted on the bottom of the top cover 3, and an air outlet is provided on the circumferential surface of the cylinder 171. The sliding plate 172 is slidably mounted on the inner wall of the cylinder 171. The transmission column 173 is rotatably mounted on the bottom of the sliding plate 172. The transmission rod 174 is rotatably mounted on the bottom of the transmission column 173. The one-way gear rod 175 is fixedly mounted on the bottom of the transmission column 173. The ramp block 176 It is fixedly installed on the bottom of the cylinder 171, the block 177 is fixedly installed on the circumferential surface of the transmission column 173, the U-shaped rod 178 is fixedly installed on the circumferential surface of the transmission column 173, the sealing baffle 179 is rotatably installed on the circumferential surface of the cylinder 171, and the end of the U-shaped rod 178 away from the transmission column 173 is slidably installed on the circumferential surface of the sealing baffle 179 to prevent the floating plate 8 from shaking when the liquid level is not in a static state, thereby better controlling the treatment effect of the cooling water, preventing scale growth and corrosion, and ensuring that the device will not be restricted when resetting, thereby improving the resetting speed and stability of the device and having strong practicality.

[0027] A No. 3 torsion spring is provided between the transmission rotating rod 174 and the transmission column 173. The transmission rotating rod 174 contacts the one-way gear lever 175. The No. 3 torsion spring drives the transmission rotating rod 174 to reset when the transmission rotating rod 174 is no longer in contact with the ring 167.

[0028] A spring is provided between the sliding plate 172 and the cylinder 171 , and the sealing baffle 179 is in contact with the air outlet. The spring drives the sliding plate 172 to reset when the transmission rotating rod 174 is no longer in contact with the ring 167 .

[0029] When the present embodiment is working, the vertical rod 12 moves toward the top, driving the set 161 to move toward the top. The set 161 moves and drives the limit block 162 to move toward the top. The limit block 162 moves and contacts the triangular block 164. The limit block 162 moves and drives the triangular block 164 to rotate in the direction away from the metering tube 10. The rotation of the triangular block 164 drives the rotating plate 163 to rotate. As the limit block 162 continues to move, after the limit block 162 no longer contacts the triangular block 164, the No. 2 torsion spring resets and drives the rotating plate 163 to reset. The rotating plate 163 resets and drives the triangular block 164 to rotate in the opposite direction and blocks the limit block 162, so that the limit block 162 cannot move to the bottom. After the liquid blocking rod 15 seals the sealing cover 11, the device will be limited to prevent the water surface from being no longer stable when the liquid is stirred, causing the floating plate 8 to move up and down, resulting in excessive flow of the medicine inside the medicine storage tank 5 into the inside of the tank body 1. When the servo motor stops working, the ring 167 is driven to rotate toward the bottom through the No. 1 torsion spring reset, and the ring 167 rotates to the bottom. The rotation of the ring 167 will contact the arc block 165 and drive the arc block 165 to rotate toward the direction of the quantitative tube 10, so that the arc block 165 rotates and drives the rotating plate 163 to rotate. The rotation of the rotating plate 163 drives the triangular block 164 to rotate. After the triangular block 164 rotates, it no longer limits the limit block 162, so that the floating plate 8 is reset by gravity, so that the device will limit the floating plate 8 when stirring and release the limit when stirring is completed, further improving the reliability of the device.

[0030] As the ring 167 moves toward the bottom, it contacts the transmission rotating rod 174. The transmission rotating rod 174 is blocked by the one-way stop rod 175, preventing the transmission rotating rod 174 from rotating toward the bottom. The movement of the ring 167 drives the transmission rotating rod 174 toward the bottom. The movement of the transmission rotating rod 174 drives the transmission column 173 toward the bottom. The movement of the transmission column 173 drives the sliding plate 172 toward the bottom. The movement of the sliding plate 172 draws air into the interior of the cylinder 171 through the air outlet. Since some of the air outlets are blocked by the sealing baffle 179, the speed of the sliding plate 172 when moving toward the bottom is limited, so is the speed of the floating plate 8 when moving toward the bottom, allowing sufficient time for the liquid surface to settle. To prevent the floating plate 8 from shaking when the liquid surface is not in a static state, the treatment effect of the cooling water can be better controlled to prevent scale growth and corrosion. The sliding plate 172 moves toward the bottom, driving the block 177 to move toward the bottom. The block 177 moves and contacts the inclined block 176. Since the block 177 is blocked by the inclined block 176, the block 177 rotates. The rotation of the block 177 drives the transmission column 173 to rotate. The rotation of the transmission column 173 drives the U-shaped rod 178 to rotate. The rotation of the U-shaped rod 178 drives the sealing baffle 179 to rotate. After the sealing baffle 179 rotates, it no longer blocks the air outlet, so that the device will not be restricted when resetting, thereby improving the resetting speed and stability of the device and having strong practicality.

[0031] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automatic dosing device for a cooling water system in a machine room, comprising a tank (1), characterized in that: A top cover (3) is fixedly mounted on the top of the tank body (1); A liquid inlet pipe (2), the liquid inlet pipe (2) is fixedly passed through the inner and outer walls of the top cover (3), and the liquid inlet pipe (2) is used to introduce cooling water into the interior of the tank body (1); A medicine storage tank (5) is fixedly mounted on the top of the top cover (3), a rotating rod (7) is rotatably penetrated through the surface of the top cover (3), a floating plate (8) is slidably mounted inside the tank body (1), and a quantitative tube (10) is fixedly penetrated through the surface of the top cover (3); A dosing tube (9), the dosing tube (9) being fixedly mounted on the bottom of the quantitative tube (10), and the dosing tube (9) being used to introduce the medicine inside the quantitative tube (10) into the interior of the tank body (1); A sealing cover (11) is fixedly installed inside the quantitative tube (10), a vertical rod (12) is fixedly installed on the top of the floating plate (8), the vertical rod (12) slides through the inner and outer walls of the quantitative tube (10), a rounded plate (13) is slidably installed on the inner wall of the quantitative tube (10), the rounded plate (13) is fixedly connected to the end of the vertical rod (12) away from the floating plate (8), a sealing plug (14) is fixedly installed on the bottom of the rounded plate (13), and a liquid blocking rod (15) is fixedly installed on the top of the rounded plate (13).

2. The automatic dosing device for a cooling water system in a machine room according to claim 1, characterized in that: The sealing plug (14) is in contact with the dosing pipe (9), a drug inlet hole is provided on the surface of the drug storage tank (5), and a limiting device for limiting the floating plate (8) and a protective device for improving the stability of the limiting device during operation are provided inside the tank body (1).

3. The automatic dosing device for a cooling water system in a machine room according to claim 2, characterized in that: The limiting device comprises: a kit (161), a limiting block (162), a rotating plate (163), a triangular block (164) and an arc block (165), wherein the kit (161) is fixedly mounted on the circumferential surface of the vertical rod (12), the limiting block (162) is fixedly mounted on the surface of the kit (161), the rotating plate (163) is rotatably mounted on the surface of the quantitative tube (10), the triangular block (164) is fixedly mounted on one side of the rotating plate (163), and the arc block (165) is fixedly mounted on the other side of the rotating plate (163), and a lifting rod (166) is rotatably mounted on the circumferential surface of the rotating rod (7), and a ring (167) is rotatably mounted on the end of the lifting rod (166) away from the rotating rod (7).

4. The automatic dosing device for a cooling water system in a machine room according to claim 3, characterized in that: A torsion spring No. 1 is provided between the rotating rod (7) and the lifting rod (166), and the circular ring (167) is in contact with the arc block (165).

5. The automatic dosing device for a cooling water system in a machine room according to claim 4, characterized in that: A second torsion spring is provided between the rotating plate (163) and the quantitative tube (10), and the limiting block (162) is in contact with the triangular block (164).

6. The automatic dosing device for a cooling water system in a machine room according to claim 5, characterized in that: The protective device comprises: a cylinder (171), a sliding plate (172), a transmission column (173), a transmission rotating rod (174), a one-way gear rod (175), a ramp block (176), a stop block (177), a U-shaped rod (178) and a sealing baffle (179), wherein the cylinder (171) is fixedly mounted on the bottom of the top cover (3), an air outlet is provided on the circumferential surface of the cylinder (171), the sliding plate (172) is slidably mounted on the inner wall of the cylinder (171), the transmission column (173) is rotatably mounted on the bottom of the sliding plate (172), and the transmission rotating rod (174) is fixedly mounted on the bottom of the sliding plate (172). ) is rotatably mounted on the bottom of the transmission column (173), the one-way gear lever (175) is fixedly mounted on the bottom of the transmission column (173), the inclined block (176) is fixedly mounted on the bottom of the cylinder (171), the stop block (177) is fixedly mounted on the circumferential surface of the transmission column (173), the U-shaped rod (178) is fixedly mounted on the circumferential surface of the transmission column (173), the sealing baffle (179) is rotatably mounted on the circumferential surface of the cylinder (171), and one end of the U-shaped rod (178) away from the transmission column (173) is slidably mounted on the circumferential surface of the sealing baffle (179).

7. The automatic dosing device for a cooling water system in a machine room according to claim 6, characterized in that: A third torsion spring is provided between the transmission rotating rod (174) and the transmission column (173), and the transmission rotating rod (174) is in contact with a one-way shift rod (175).

8. The automatic dosing device for a cooling water system in a machine room according to claim 7, characterized in that: A spring is provided between the sliding plate (172) and the cylinder (171), and the sealing baffle (179) is in contact with the air outlet.

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