Heat recovery device of water chilling unit

By introducing an automated cleaning system into the heat recovery unit of the chiller, the problem of inconvenient cleaning of the hot water storage tank has been solved, achieving efficient sterilization and cleaning without manual operation, thus improving cleaning efficiency and safety.

CN223512602UActive Publication Date: 2025-11-04GUANGDONG LECHANG REFRIGERATION TECH CO LTD
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Patent Information

Application Number
CN202422809535.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2025-11-04
Estimated Expiration
2034-11-19

AI Technical Summary

Technical Problem

The existing heat recovery unit's hot water storage tank requires manual cleaning, which is inconvenient and difficult to automate.

Method used

An automated cleaning system including a water pump, a stirring rod, a motor, and a conveying assembly was designed. The system achieves automatic mixing and distribution of cleaning agents by controlling the water pump and driving the stirring rod and spray nozzle with the motor. Wastewater is discharged through a wastewater pipe, achieving automatic sterilization and cleaning without manual operation.

Benefits of technology

It achieves efficient and automated sterilization and cleaning of hot water storage tanks, avoiding manual operation, and wastewater is discharged directly, improving cleaning efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223512602U_ABST
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Abstract

The utility model relates to the technical field of heat recovery, and discloses a heat recovery device of a water chilling unit, which comprises a heat storage water tank, a water pump is mounted at the output end of the heat storage water tank, a main pipeline and a waste water pipe are mounted at the output end of the water pump, a plurality of stirring rods are rotatably mounted in the heat storage water tank, and the stirring rods are uniformly arranged. A motor, a rotating rod and a conveying assembly are installed on the rear side of the heat storage water tank, the rotating rod is used for converting output power of the motor into rotating force of a stirring rod, the stirring rod is used for mixing and stirring the cleaning agent, and the conveying assembly is used for conveying the cleaning agent into the heat storage water tank. The heat storage water tank can be efficiently sterilized and cleaned, the whole process is extremely high in automation degree, the heat storage water tank does not need to be opened, any manual operation is not needed, in addition, sterilized and cleaned waste water can be discharged outwards through an independent waste water pipe, and the waste water is effectively prevented from being supplied to a user through a main pipeline.
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Description

TECHNICAL FIELD

[0001] The utility model relates to heat recovery technical field more particularly to a kind of heat recovery device of water chiller unit. BACKGROUND

[0002] In water chiller unit, refrigerant absorbs heat in evaporator, and water temperature is reduced, but also a certain amount of waste heat is generated, in order to make waste heat be effectively recycled, current water chiller unit is generally equipped with heat recovery device, heat recovery device is usually composed of waste heat exchanger, heat conversion device and heat storage water tank, waste heat exchanges with low temperature water or air through waste heat exchanger, and heat is transferred to low temperature medium, heat conversion device converts the heat in low temperature medium into useful heat energy, and finally heat energy enters heat storage water tank to heat water, and heated water can be used by user.

[0003] The heat storage water tank of the heat recovery device of water chiller unit will breed some bacteria and impurities inside after long time use, so the staff needs to clean the heat storage water tank regularly, but currently when cleaning, the staff needs to open the heat storage water tank and clean it by himself, which is relatively inconvenient to operate. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a kind of heat recovery device of water chiller unit to solve the problems in the above-mentioned background art.

[0005] The utility model provides the following technical scheme: a kind of heat recovery device of water chiller unit, including heat storage water tank, water pump is installed at the output end of the heat storage water tank, water pump output end is installed with main pipe and waste water pipe, stirring rod is rotatably installed in the heat storage water tank, the stirring rod is uniformly provided with multiple, motor, rotating rod and conveying assembly are installed at the rear side of the heat storage water tank, the rotating rod is used to convert the output power of motor into stirring rod rotary force, the stirring rod is used to mix and stir cleaning agent, and the conveying assembly is used to convey cleaning agent into heat storage water tank.

[0006] Preferably, the water pump input end is fixedly connected with the heat storage water tank output end, and the water pump output end, main pipe input end and waste water pipe input end are fixedly connected through electric control valve.

[0007] Preferably, one end of the stirring rod extends to the rear side of the heat storage water tank, the rear side of the heat storage water tank is fixedly connected with mounting bracket, the rotating rod is rotatably installed on the mounting bracket, the motor is fixedly installed on the mounting bracket, the motor output end is fixedly connected with the bottom end of the rotating rod, one end of the stirring rod is fixedly connected with second bevel gear, the surface of the rotating rod is fixedly connected with first bevel gear, the first bevel gear is provided with multiple corresponding second bevel gear, and the first bevel gear is meshingly connected with the second bevel gear.

[0008] Preferably, the stirring rod surface is fixedly provided with stirring blades, the stirring blades are uniformly arranged, the topmost stirring rod is a hollow structure with an open end, the topmost stirring rod surface is fixedly provided with spray nozzles, and the spray nozzles are arranged in plurality.

[0009] Preferably, the conveying assembly comprises a compression cylinder, an electric telescopic rod and a storage container, the compression cylinder bottom is fixedly provided with a first flow guide nozzle, the first flow guide nozzle bottom is fixedly provided with a connecting pipe, the connecting pipe surface is fixedly connected with the back side of the heat storage water tank, and the connecting pipe one end is rotationally connected with the topmost stirring rod one end.

[0010] Preferably, the compression cylinder is internally provided with a piston, the piston and the compression cylinder are in sealing sliding guide cooperation, the piston top center is fixedly connected with a movement rod, the movement rod top end penetrates through the compression cylinder top and extends upward, the electric telescopic rod output end and the movement rod top end are fixedly connected through a link bar, the storage container and the first flow guide nozzle are fixedly connected through a second flow guide nozzle, and the first flow guide nozzle and the second flow guide nozzle are internally provided with check valves.

[0011] The technical effects and advantages of the utility model are as follows:

[0012] When the heat storage water tank interior needs to be cleaned, the electric control valve can close the passage between the water pump and the main pipeline, open the passage between the water pump and the waste water pipe, the electric telescopic rod drives the piston to move downward, the cleaning agent in the compression cylinder enters the heat storage water tank interior under the extrusion of the piston, the motor drives the stirring blades to rotate around the stirring rod axis through the rotating rod and the stirring rod, the stirring blades mix and stir the water and the cleaning agent in the heat storage water tank, the cleaning agent is uniformly distributed, the sterilization and cleaning of the heat storage water tank interior are realized, the utility model can efficiently complete the sterilization and cleaning work of the heat storage water tank, the automation degree of the whole process is very high, the heat storage water tank does not need to be opened, and any manual operation is not needed, in addition, the waste water after sterilization and cleaning can be discharged outward through the separate waste water pipe, and the waste water supplied to the user through the main pipeline is effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole structure schematic view of the utility model.

[0014] Figure 2 It is the whole structure section view of the utility model.

[0015] Figure 3 It is the whole structure schematic view of the utility model.

[0016] Figure 4 It is the structure enlarged view of A in the utility model Figure 2 ​

[0017] Figure 5 For the utility model Figure 3 The structure of B in the utility model is enlarged.

[0018] Figure 6 For the utility model of the conveying assembly part structure diagram.

[0019] The figure mark is: 1, the heat storage water tank;11, the mounting frame;2, the water pump;21, the electric control valve;3, the main pipeline;4, the waste water pipe;5, the stirring rod;51, the second bevel gear;52, the stirring blade;53, the injection nozzle;6, the motor;7, the rotating rod;71, the first bevel gear;8, the conveying assembly;81, the compression cylinder;82, the electric telescopic rod;83, the storage container;84, the connecting pipe;85, the first guide nozzle;86, the second guide nozzle;87, the piston;88, the movement rod;89, the link bar. Specific implementation

[0020] The technical scheme in the utility model will be described clearly and completely in combination with the drawings in the utility model, and in addition, the form of each structure recorded in the following implementation is only an example, and the heat recovery device of the water chiller involved in the utility model is not limited to each structure recorded in the following implementation, and all other implementations obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0021] The utility model provides a kind of heat recovery device of water chiller, including heat storage water tank 1, water pump 2 is installed in the output end of heat storage water tank 1, water pump 2 output end is installed with main pipeline 3 and waste water pipe 4, stirring rod 5 is rotatably installed in heat storage water tank 1, stirring rod 5 is evenly provided with multiple, motor 6, rotating rod 7 and conveying assembly 8 are installed in the rear side of heat storage water tank 1, rotating rod 7 is used to convert the output power of motor 6 into the rotation force of stirring rod 5, stirring rod 5 is used to mix and stir processing cleaner, conveying assembly 8 is used to deliver cleaner to heat storage water tank 1.

[0022] Further, water pump 2 input end is fixedly connected with heat storage water tank 1 output end, water pump 2 output end, main pipeline 3 input end and waste water pipe 4 input end are fixedly connected by electric control valve 21.

[0023] Further, one end of the stirring rod 5 extends to the rear side of the heat storage water tank 1, the rear side of the heat storage water tank 1 is fixedly connected with a mounting frame 11, the rotating rod 7 is rotatably installed on the mounting frame 11, the motor 6 is fixedly installed on the mounting frame 11, the output end of the motor 6 is fixedly connected with the bottom end of the rotating rod 7, one end of the stirring rod 5 is fixedly connected with a second bevel gear 51, the surface of the rotating rod 7 is fixedly connected with a first bevel gear 71, the first bevel gear 71 is provided with a plurality of corresponding second bevel gears 51, the first bevel gear 71 is meshingly connected with the second bevel gear 51, the output power of the motor 6 can be converted into the rotating force of the rotating rod 7, and the first bevel gear 71 and the second bevel gear 51 can cooperate to convert the rotating force of the rotating rod 7 into the rotating force of the stirring rod 5.

[0024] Further, the surface of the stirring rod 5 is fixedly installed with stirring blades 52, the stirring blades 52 are uniformly provided with a plurality of stirring blades 52, the stirring blades 52 can rotate around the axis of the stirring rod 5 to achieve the stirring effect, the stirring rod 5 at the top is a hollow structure with an open end, the surface of the stirring rod 5 at the top is fixedly installed with a plurality of injection nozzles 53, the injection nozzles 53 are provided with a plurality of one-way valves, and the cleaning agent in the stirring rod 5 at the top can enter the inside of the heat storage water tank 1 through the injection nozzles 53.

[0025] Further, the conveying assembly 8 comprises a compression cylinder 81, an electric telescopic rod 82 and a storage container 83, the bottom of the compression cylinder 81 is fixedly installed with a first flow guide nozzle 85, the bottom of the first flow guide nozzle 85 is fixedly installed with a connecting pipe 84, the surface of the connecting pipe 84 is fixedly connected with the rear side of the heat storage water tank 1, one end of the connecting pipe 84 is rotatably connected with one end of the stirring rod 5 at the top, the inside of the compression cylinder 81 is provided with a piston 87, the piston 87 is in sealing sliding guide cooperation with the compression cylinder 81, the top center of the piston 87 is fixedly connected with a moving rod 88, the top end of the moving rod 88 penetrates through the top of the compression cylinder 81 and extends upward, the output end of the electric telescopic rod 82 is fixedly connected with the top end of the moving rod 88 through a link bar 89, the storage container 83 is fixedly connected with the first flow guide nozzle 85 through a second flow guide nozzle 86, the first flow guide nozzle 85 and the second flow guide nozzle 86 are both installed with one-way valves, the one-way valve in the first flow guide nozzle 85 can ensure that the cleaning agent in the compression cylinder 81 is unidirectionally conveyed from the compression cylinder 81 to the connecting pipe 84, and the one-way valve in the second flow guide nozzle 86 can ensure that the cleaning agent in the storage container 83 is unidirectionally conveyed from the storage container 83 to the compression cylinder 81.

[0026] The utility model discloses a working principle: actual work time, the water chilling unit runs, and the heat exchange of waste heat exchanger and low temperature water or air carries out heat exchange, and the heat transfer of heat is given to low temperature medium, and the heat energy conversion device converts the heat in low temperature medium into useful heat energy, and finally heat energy enters the heat storage water tank 1 and heats the water, and the electric control valve 21 opens the passage between water pump 2 and main pipeline 3, and closes the passage between water pump 2 and waste water pipe 4, under the action of water pump 2, hot water is extracted from the heat storage water tank 1 and is sent to the user through main pipeline 3.

[0027] When the inside of heat storage water tank 1 needs to be cleaned, the electric control valve 21 closes the passage between water pump 2 and main pipeline 3, opens the passage between water pump 2 and waste water pipe 4, the output end of electric telescopic rod 82 shortens downwards, the moving rod 88 drives the piston 87 to move downwards synchronously, the cleaning agent in compression cylinder 81 passes through first flow guide nozzle 85 and enters the topmost stirring rod 5 through connecting pipe 84 under the extrusion of piston 87, then the cleaning agent is sprayed into the inside of heat storage water tank 1 through injection nozzle 53 (then, the output end of electric telescopic rod 82 extends upwards to the initial position, the piston 87 also moves upwards to the initial position, the inside of compression cylinder 81 is in a negative pressure state, the cleaning agent in storage container 83 enters compression cylinder 81 through second flow guide nozzle 86 under the action of atmospheric pressure, for next use), the motor 6 is started, the motor 6 drives the rotating rod 7 to rotate around its axis, the rotating rod 7 rotates and drives the stirring rod 5 to rotate around its axis synchronously through first bevel gear 71 and second bevel gear 51, the stirring rod 5 rotates and drives the stirring blade 52 to rotate around the axis of stirring rod 5 synchronously, the stirring blade 52 mixes and stirs the water and the cleaning agent in heat storage water tank 1, so that the cleaning agent is evenly distributed, the inside of heat storage water tank 1 is sterilized and cleaned, finally, the waste water after sterilization and cleaning is discharged outward through waste water pipe 4 under the action of water pump 2.

[0028] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0029] Secondly: the utility model discloses the embodiment of the drawings, only relate to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, in the case of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0030] Finally: the above described is only the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A heat recovery device of a water chilling unit comprising a heat storage water tank (1), characterized by, The output end of the heat storage water tank (1) is provided with a water pump (2), the output end of the water pump (2) is provided with a main pipe (3) and a waste water pipe (4), the inside of the heat storage water tank (1) is rotatably provided with stirring rods (5), the stirring rods (5) are uniformly provided with a plurality of stirring rods (5), the rear side of the heat storage water tank (1) is provided with a motor (6), a rotating rod (7) and a conveying assembly (8), the rotating rod (7) is used for converting the output power of the motor (6) into the rotating force of the stirring rod (5), the stirring rod (5) is used for mixing and stirring the cleaning agent, and the conveying assembly (8) is used for conveying the cleaning agent into the heat storage water tank (1).

2. The heat recovery device of a water chiller according to claim 1, wherein The input end of the water pump (2) is fixedly connected with the output end of the heat storage water tank (1), and the output end of the water pump (2), the input end of the main pipe (3) and the input end of the waste water pipe (4) are fixedly connected through the electric control valve (21).

3. The heat recovery device of a water chiller according to claim 2, wherein One end of the stirring rod (5) extends to the rear side of the heat storage water tank (1), the rear side of the heat storage water tank (1) is fixedly connected with a mounting bracket (11), the rotating rod (7) is rotatably mounted on the mounting bracket (11), the motor (6) is fixedly mounted on the mounting bracket (11), the output end of the motor (6) is fixedly connected with the bottom end of the rotating rod (7), one end of the stirring rod (5) is fixedly connected with a second bevel gear (51), the surface of the rotating rod (7) is fixedly connected with a first bevel gear (71), the first bevel gear (71) is provided with a plurality of first bevel gears (71) corresponding to the second bevel gear (51), and the first bevel gear (71) is meshedly connected with the second bevel gear (51).

4. The heat recovery device of a water chiller according to claim 3, wherein The surface of the stirring rod (5) is fixedly provided with stirring blades (52), the stirring blades (52) are uniformly provided with a plurality of stirring blades (52), the stirring rod (5) at the top is a hollow structure with one end being open, the surface of the stirring rod (5) at the top is fixedly provided with a plurality of injection nozzles (53).

5. The heat recovery device of a water chiller according to claim 1, wherein The conveying assembly (8) comprises a compression cylinder (81), an electric telescopic rod (82) and a storage container (83), the bottom of the compression cylinder (81) is fixedly provided with a first flow guide nozzle (85), the bottom of the first flow guide nozzle (85) is fixedly provided with a connecting pipe (84), the surface of the connecting pipe (84) is fixedly connected with the rear side of the heat storage water tank (1), and one end of the connecting pipe (84) is rotatably connected with one end of the stirring rod (5) at the top.

6. The heat recovery device of a water chiller according to claim 5, wherein The inside of the compression cylinder (81) is provided with a piston (87), the piston (87) and the compression cylinder (81) are in sealing sliding guide cooperation, the top center of the piston (87) is fixedly connected with a movement rod (88), the top end of the movement rod (88) penetrates through the top of the compression cylinder (81) and extends upward, the output end of the electric telescopic rod (82) is fixedly connected with the top end of the movement rod (88) through a connecting strip (89), the storage container (83) is fixedly connected with the first flow guide nozzle (85) through a second flow guide nozzle (86), and the first flow guide nozzle (85) and the second flow guide nozzle (86) are both provided with one-way valves.