Automatic drainage device of water tank type cooling-water machine

Abstract

The utility model discloses an automatic drainage device of a water tank type cooling-water machine, which comprises a cooling-water machine water tank, a diversion pipeline and a mounting pipe, a single chip microcomputer is mounted at one end of the top of the cooling-water machine water tank, the diversion pipeline is mounted at the top of one end of the cooling-water machine water tank close to the single chip microcomputer, and the mounting pipe is mounted at one end of the diversion pipeline far away from the cooling-water machine water tank. Due to the fact that the flow guide pipeline, the drainage tank and the drainage pipe are installed, when the device cannot be used normally due to power failure and the like and more condensate water is stored in the water tank of the cooling-water machine, water pressure in the water tank of the cooling-water machine rises, the condensate water submerges the liquid level sensor and enters the flow guide pipeline, and the sealing block moves under the water pressure. The sealing plug block does not shield the drainage pipe any more, the condensate water can enter the drainage box through the drainage pipe, the condensate water can be automatically drained, and manual operation of workers is not needed.

Description

Technical Field

[0001] This utility model relates to the technical field of automatic drainage equipment, specifically an automatic drainage device for a water tank chiller. Background Technology

[0002] In the refrigeration industry, there are two types of chillers: air-cooled chillers and water-cooled chillers. Water tank chillers are equipped with an automatic drainage device. When there is a lot of water stored in the tank, the water inside the tank can be automatically drained to prevent the compressed air from being contaminated due to the failure to drain the condensate in time.

[0003] Utility model patent CN215864116U discloses an automatic drainage device for a water tank chiller. This patent adds an emergency drain pipe, which can be used to drain water when the automatic drainage fails, preventing water accumulation. It also adds a filtration system to effectively filter out impurities in the water and prevent blockage of the outlet pipe. However, in practice, the emergency drain pipe still needs to be manually opened by the operator, and the emergency drainage process cannot be performed automatically. Therefore, there is an urgent need for a new type of automatic drainage device for water tank chillers to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic drainage device for a water tank chiller to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic drainage device for a water tank type chiller, comprising a chiller water tank, a guide pipe, and an installation pipe. A microcontroller is installed at one end of the top of the chiller water tank, and a guide pipe is installed at the top of the chiller water tank near the microcontroller. An installation pipe is installed at the end of the guide pipe away from the chiller water tank. A liquid level sensor is installed at the top of the chiller water tank near the guide pipe, and a drain tank is installed at the bottom of the chiller water tank near the liquid level sensor. A solenoid valve is installed at the bottom of the chiller water tank near the liquid level sensor, and a guide pipe extending into the drain tank is installed at the output end of the solenoid valve. A drain pipe is installed at the bottom of the drain tank away from the chiller water tank. An inlet pipe is installed at the top of the chiller water tank away from the microcontroller. The output end of the liquid level sensor is electrically connected to the input end of the microcontroller via a wire, and the output end of the microcontroller is electrically connected to the input end of the solenoid valve via a wire.

[0006] Preferably, a set of mounting blocks are symmetrically installed inside the water tank of the chiller, and each mounting block has a mounting slot on its outer side, with a filter screen installed inside the mounting slot.

[0007] Preferably, a drain pipe is installed at the bottom of the diversion pipe, and the end of the drain pipe away from the diversion pipe is connected to the drainage tank.

[0008] Preferably, a spring is installed at the end of the installation tube away from the guide pipe, and a connecting rod is installed at the end of the spring near the guide pipe. The connecting rod passes through the guide pipe, and a sealing block is installed at the end of the connecting rod away from the spring.

[0009] Preferably, a set of guide grooves are symmetrically arranged on the inner side of the mounting tube.

[0010] Preferably, a set of guide blocks are symmetrically installed on the outer side of the connecting rod.

[0011] Preferably, a door is installed on one side of the chiller water tank, and a handle is installed on the outside of the door.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The automatic drainage device of this water tank chiller is equipped with a guide pipe, a drain tank, and a diversion pipe. If the device cannot be used normally due to power failure or other reasons, when there is a lot of condensate stored in the chiller's water tank, the water pressure inside the chiller's water tank will increase. The condensate will overflow the liquid level sensor and enter the guide pipe, causing the sealing block to move under water pressure. The sealing block will no longer block the diversion pipe, and the condensate can enter the drain tank through the diversion pipe, thus automatically draining the condensate without the need for manual operation by the staff.

[0014] 2. The automatic drainage device of this water tank chiller is equipped with a microcontroller, a solenoid valve and a liquid level sensor. When in use, when the liquid level is above the liquid level sensor, the liquid level sensor transmits the monitored information to the microcontroller. The microcontroller can control the solenoid valve to open, so that the water inside the chiller tank can be discharged through the guide pipe.

[0015] 3. The automatic drainage device of this tank-type chiller is equipped with a mounting block and a filter screen. When in use, the filter screen can filter impurities in the water. After use, the filter screen can be removed from the mounting slot for cleaning. Attached Figure Description

[0016] Figure 1 This is a schematic front sectional view of the present invention;

[0017] Figure 2 This is a front view schematic diagram of the present invention;

[0018] Figure 3 This is a partial structural schematic diagram of the present invention;

[0019] Figure 4 This is a top view of the mounting block of this utility model.

[0020] In the diagram: 1. Chiller water tank; 2. Mounting block; 3. Filter screen; 4. Mounting slot; 5. Inlet pipe; 6. Microcontroller; 7. Guide pipe; 8. Sealing block; 9. Mounting pipe; 10. Solenoid valve; 11. Guide water pipe; 12. Drain tank; 13. Drain pipe; 14. Liquid level sensor; 15. Drain pipe; 16. Connecting rod; 17. Guide groove; 18. Guide block; 19. Spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides an embodiment of an automatic drainage device for a water tank type chiller, including a chiller water tank 1, a guide pipe 7, and an installation pipe 9. A microcontroller 6 (model HT66F018) is installed at one end of the top of the chiller water tank 1 near the microcontroller 6. The guide pipe 7 is installed at the end of the guide pipe 7 away from the chiller water tank 1. A liquid level sensor 14 (model WMB-FS) is installed at the top of the chiller water tank 1 near the guide pipe 7. A drain tank 12 is installed at the bottom of the chiller water tank 1. A solenoid valve 10 is installed at the bottom of the chiller water tank 1 near the liquid level sensor 14. The solenoid valve 10 can be a HYZF2-15. A guide pipe 11 extending into the drain tank 12 is installed at the output end of the solenoid valve 10. A drain pipe 13 is installed at the bottom of the drain tank 12 away from the chiller water tank 1. A water inlet pipe 5 is installed at the top of the chiller water tank 1 away from the microcontroller 6. The output end of the liquid level sensor 14 is electrically connected to the input end of the microcontroller 6 through a wire. The output end of the microcontroller 6 is electrically connected to the input end of the solenoid valve 10 through a wire.

[0023] like Figure 1-4 As shown, a set of mounting blocks 2 are symmetrically installed inside the water tank 1 of the chiller, and mounting slots 4 are provided on the outer side of each mounting block 2. A filter screen 3 is installed inside the mounting slot 4. A door is installed on one side of the water tank 1 of the chiller, and a handle is installed on the outer side of the door. Impurities in the water can be filtered through the filter screen 3. After use, the operator can open the door and then pull the filter screen 3 out from the mounting slot 4, so that the filter screen 3 can be removed separately from the water tank 1 of the chiller, which makes it easy to clean the filter screen 3.

[0024] like Figure 1-3 As shown, a drain pipe 15 is installed at the bottom of the guide pipe 7, and the end of the drain pipe 15 away from the guide pipe 7 is connected to the drain tank 12. A spring 19 is installed inside the installation pipe 9 at the end away from the guide pipe 7, and a connecting rod 16 is installed at the end of the spring 19 close to the guide pipe 7. The connecting rod 16 passes through the guide pipe 7, and a sealing block 8 is installed at the end of the connecting rod 16 away from the spring 19. When the condensate water overflows the liquid level sensor 14 and enters the interior of the guide pipe 7, the sealing block 8 is moved by the water pressure. The sealing block 8 no longer blocks the drain pipe 15, and the condensate water can enter the interior of the drain tank 12 through the drain pipe 15, thus automatically draining the condensate water.

[0025] like Figure 1-3 As shown, a set of guide grooves 17 are symmetrically arranged on the inner side of the mounting tube 9, and a set of guide blocks 18 are symmetrically installed on the outer side of the connecting rod 16. The connecting rod 16 is guided by the guide grooves 17 and the guide blocks 18, so that the connecting rod 16 can only move in a straight line.

[0026] Working principle:

[0027] When in use, the device is connected to the power supply. The liquid level sensor 14 monitors the water level inside the water tank 1 of the chiller in real time and transmits the monitored information to the microcontroller 6. The microcontroller 6 controls the device.

[0028] Condensate enters the chiller water tank 1 through the inlet pipe 5. Impurities in the water can be filtered through the filter screen 3. When the liquid level inside the chiller water tank 1 exceeds the liquid level sensor 14, the liquid level sensor 14 transmits the information to the microcontroller 6. The microcontroller 6 controls the solenoid valve 10 to open, so that the water inside the chiller water tank 1 enters the drain tank 12 through the guide pipe 11, and is then discharged through the drain pipe 13.

[0029] When the liquid level is lower than the liquid level sensor 14, the liquid level sensor 14 transmits the information to the microcontroller 6. The microcontroller 6 can control the solenoid valve 10 to close, preventing external gases from entering the chiller water tank 1 through the guide water pipe 11.

[0030] When the device cannot drain normally due to power outage or other reasons, the water level inside the chiller water tank 1 continues to rise and the water pressure gradually increases. When water enters the inside of the guide pipe 7, the sealing block 8 is moved by the pressure of the water, so that the sealing block 8 no longer blocks the drain pipe 15. The water inside the guide pipe 7 can flow through the drain pipe 15 to the inside of the drain tank 12, and then be discharged through the drain pipe 13, which can realize the emergency drainage function.

[0031] When the water is discharged and the water level is lower than that of the diversion pipe 7, the sealing block 8 is no longer under the pressure of the water. At this time, the elastic action of the spring 19 pushes the connecting rod 16 to move and reset. The connecting rod 16 drives the sealing block 8 to move and reset, so that the sealing block 8 blocks the diversion pipe 15 again, thus preventing external gas and other substances from entering the interior of the diversion pipe 7 through the diversion pipe 15.

[0032] After use, staff can open the cabinet door and pull the filter screen 3 out from the mounting slot 4. The filter screen 3 can then be removed separately from the water tank 1 of the chiller, making it easier to clean the filter screen 3.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic drainage device for a water tank type chiller, comprising a chiller water tank (1), a guide pipe (7), and an installation pipe (9), characterized in that: A microcontroller (6) is installed at one end of the top of the chiller water tank (1), and a guide pipe (7) is installed at the top of the chiller water tank (1) near the microcontroller (6). An installation pipe (9) is installed at the end of the guide pipe (7) away from the chiller water tank (1). A liquid level sensor (14) is installed at the top of the chiller water tank (1) near the guide pipe (7), and a drain tank (12) is installed at the bottom of the chiller water tank (1) near the liquid level sensor (14). A solenoid valve (10) is installed at the bottom of one end, and a guide pipe (11) extending into the drain tank (12) is installed at the output end of the solenoid valve (10). A drain pipe (13) is installed at the bottom of the drain tank (12) away from the chiller tank (1). A water inlet pipe (5) is installed at the top of the chiller tank (1) away from the microcontroller (6). The output end of the liquid level sensor (14) is electrically connected to the input end of the microcontroller (6) through a wire. The output end of the microcontroller (6) is electrically connected to the input end of the solenoid valve (10) through a wire.

2. The automatic drainage device for a water tank chiller according to claim 1, characterized in that: A set of mounting blocks (2) are symmetrically installed inside the water tank (1) of the chiller, and mounting slots (4) are provided on the outside of the mounting blocks (2), and a filter screen (3) is installed inside the mounting slots (4).

3. The automatic drainage device for a water tank chiller according to claim 1, characterized in that: The bottom of the diversion pipe (7) is equipped with a drainage pipe (15), and the end of the drainage pipe (15) away from the diversion pipe (7) is connected to the drainage tank (12).

4. The automatic drainage device for a water tank chiller according to claim 1, characterized in that: A spring (19) is installed inside the installation tube (9) at the end away from the guide pipe (7), and a connecting rod (16) is installed at the end of the spring (19) close to the guide pipe (7). The connecting rod (16) passes through the guide pipe (7), and a sealing block (8) is installed at the end of the connecting rod (16) away from the spring (19).

5. The automatic drainage device for a water tank chiller according to claim 1, characterized in that: A set of guide grooves (17) are symmetrically arranged on the inner side of the mounting tube (9).

6. The automatic drainage device for a water tank chiller according to claim 4, characterized in that: A set of guide blocks (18) are symmetrically installed on the outer side of the connecting rod (16).

7. The automatic drainage device for a water tank chiller according to claim 1, characterized in that: The chiller water tank (1) has a door installed on one side, and a handle is installed on the outside of the door.

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