Evaporation and condensation type heat pump cold and hot water unit
By designing a cleaning device in the evaporative condensing heat pump hot and cold water unit, and using a drive sprocket and a cleaning nozzle to remove scale in the water tank, the scale problem is solved, the heat exchange efficiency is improved, and the maintenance cost is reduced.
Patent Information
- Application Number
- CN202422324704.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-09-24
AI Technical Summary
During the long-term operation of evaporative condensing heat pump hot and cold water units, scale problems in the water tank affect heat exchange efficiency, reduce performance and increase maintenance costs.
A cleaning device is designed, which drives the transmission sprocket and screw through the driving motor, moves the cleaning brush along the inner wall of the water tank, and sprays clean water in combination with the cleaning nozzle to remove scale and discharge it through the drain pipe.
Effectively remove scale from the inner wall of the water tank, restore heat exchange efficiency, reduce maintenance costs and extend equipment life.
Smart Images
Figure CN223382217U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of temperature control equipment, in particular to an evaporative condensing heat pump hot and cold water unit. Background Art
[0002] An evaporative-condensing heat pump chiller / heater unit typically refers to a heat pump unit that integrates the functions of an evaporator and condenser and operates on the principle of a vapor-compression cycle. In cooling and heating modes, this unit uses different circulation processes to regulate hot and cold water to meet the heating and cooling needs of buildings or industrial areas. The following is a detailed explanation of evaporative-condensing heat pump chillers and their main functions:
[0003] Refrigeration: In cooling mode, the unit absorbs heat from the room (via the evaporator), then transfers the heat to the external environment (such as water or air) through the condenser, producing chilled water. This process is achieved through the evaporation and condensation of the refrigerant. The refrigerant in the evaporator absorbs the room's heat and evaporates into a gas. This gas is then compressed by the compressor into a high-temperature, high-pressure gas. The gas then passes through the condenser, releasing the heat to the external environment while condensing back into a liquid, completing the refrigeration cycle. Heating: In heating mode, the unit's operation is the reverse of cooling mode. It absorbs heat from the external environment (such as water or air), transfers the heat to the refrigerant through the evaporator, causing it to evaporate into a gas. This gas is then compressed by the compressor into a high-temperature, high-pressure gas. This gas then passes through the condenser, releasing the heat to the indoor environment (such as water or air), while condensing back into a liquid, producing hot water or warm air, achieving the heating function. Energy saving and environmental protection: Evaporative condensing heat pump chillers have a high energy efficiency ratio (COP), meaning they can produce a high amount of heat or cooling per unit of electrical energy input, resulting in significant energy savings. At the same time, since it mainly uses heat in the environment for energy conversion, it reduces fossil fuel consumption and carbon emissions, which is beneficial to environmental protection.
[0004] However, in actual use, evaporative condensing heat pump chillers and hot water units have been widely used in modern architecture and industry due to their high efficiency and energy-saving characteristics. However, during long-term operation, scale buildup within the unit's water tank gradually becomes a problem. This scale not only affects heat exchange efficiency and reduces unit performance, but can also damage the equipment and increase maintenance costs. Utility Model Content
[0005] The present utility model aims to provide an evaporative condensing heat pump chiller / hot water unit to address the aforementioned background art problem. Evaporative condensing heat pump chillers / hot water units are widely used in modern architecture and industry due to their high efficiency and energy-saving properties. However, during long-term operation, scale buildup within the unit's water tank gradually develops. This scale buildup not only affects heat exchange efficiency and reduces unit performance, but can also damage the equipment and increase maintenance costs.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: it includes a mounting frame, wherein the mounting frame is fixedly installed with an organic unit body, and a cold water tank and a hot water tank are fixedly installed in the middle of the organic unit body respectively, the front side support of the upper end of the mounting frame is fixedly installed with a driving motor, the inner transmission shaft part of the driving motor is fixedly installed with a first transmission sprocket, the outer end of the first transmission sprocket is connected to the second transmission sprocket through a chain transmission, the middle part of the second transmission sprocket is fixedly installed with a middle transmission screw, the middle outer curved surface of the transmission screw is threadedly connected with a screw nut, and the outer curved surface of the screw nut is fixedly installed with a movable limited position straight sliding rod, the two side ends of the movable frame are penetrated by a fitting movably connected limit position straight sliding rod, the bottom support of the movable frame is fixedly installed with a support rod, and the bottom of the support rod is fixedly installed with a cleaning brush, and the outer sides of the lower ends of the cold water tank and the hot water tank are respectively penetrated and fixedly installed with a sewage pipe;
[0007] An extension frame is fixedly installed on the lower side end of the movable frame, and a cleaning pipe is rotatably connected to the outer end of the extension frame through a rotating shaft. A cleaning nozzle is fixedly installed on the bottom of the cleaning pipe. An adjusting rod is rotatably connected to the upper end of the movable frame through a rotating shaft, and a third transmission sprocket is fixedly installed on the outer curved surface of the upper end of the adjusting rod. The outer end of the third transmission sprocket is connected to the fourth sprocket through chain transmission, and the fourth sprocket is fixedly installed on the outer curved surface of the upper end of the cleaning pipe.
[0008] Preferably, the transmission screw is rotatably connected to the middle part of the upper end of the mounting frame through a rotating shaft, and there are two limiting straight sliding rods, which are symmetrically distributed on both sides of the movable frame, and the two side ends of the limiting straight sliding rods are fixedly installed on both sides of the upper end of the mounting frame.
[0009] Preferably, there are four support rods, and every two support rods form a group, and the two groups of support rods are symmetrically distributed on both sides of the bottom of the movable frame.
[0010] Preferably, the outer brush head portion of the cleaning brush is respectively fitted with the inner wall of the cold water tank and the hot water tank for movably connection, and a switch valve is fixedly installed at the outer opening of the sewage pipe.
[0011] Preferably, there are four extension racks, two of which form a group, and the two groups of extension racks are symmetrically distributed at the lower side ends of the movable rack.
[0012] Preferably, the upper end of the cleaning pipe is connected to the external water supply pipe through a rotating joint and a connecting hose, and the opening of the lower end of the cleaning nozzle faces the inner wall of the cold water tank and the hot water tank respectively.
[0013] Preferably, the outer curved surface at the lower end of the adjusting rod is threadedly connected to a nut for locking and fastening the adjusting rod.
[0014] Compared with the prior art, the beneficial effects of the present invention are:
[0015] When the driving motor is turned on, the first transmission sprocket is driven to rotate. When the first transmission sprocket rotates, the second transmission sprocket is driven to rotate through the chain transmission. When the second transmission sprocket rotates, the transmission screw is driven to rotate. When the transmission screw rotates, the force generated by the threaded connection between the outer curved surface of the transmission screw and the screw nut drives the movable frame to move left and right along the outer curved surface of the limiting straight sliding rod. When the movable frame moves left and right, it drives the support rod to move left and right. When the support rod moves left and right, it drives the cleaning brush to move left and right along the inner wall of the cold water tank and the hot water tank to clean and brush, so that the scale attached to the inner wall of the cold water tank and the hot water tank is cleaned and falls off, thereby facilitating the cleaning of the scale attached to the inner wall of the cold water tank and the hot water tank.
[0016] The utility model also can discharge clean water into the cleaning pipe through the connecting hose and the rotating joint when the external water supply pipe is opened. When the clean water is discharged into the cleaning pipe, the clean water is sprayed onto the inner walls of the cold water tank and the hot water tank through the cleaning nozzle, so that the scale that has been cleaned and fallen off the inner walls of the cold water tank and the hot water tank follows the water flow to the bottom of the cold water tank and the hot water tank, and is discharged to the outside through the drain pipe, thereby achieving the purpose of cleaning the scale attached to the inner walls of the cold water tank and the hot water tank and facilitating the discharge of the cleaned and fallen scale to the outside. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model evaporative condensing heat pump hot and cold water unit;
[0018] Figure 2 This is a partial structural diagram of the utility model evaporative condensing heat pump hot and cold water unit;
[0019] Figure 3 This is a schematic cross-sectional view of the overall structure of the evaporative condensing heat pump hot and cold water unit of the present invention.
[0020] In the figure: 1. Mounting frame; 2. Cold water tank; 3. Hot water tank; 4. Drive motor; 5. First transmission sprocket; 6. Second transmission sprocket; 7. Transmission screw; 8. Screw nut; 9. Moving frame; 10. Limiting straight sliding rod; 11. Support rod; 12. Cleaning brush; 13. Drain pipe; 14. Extension frame; 15. Cleaning pipe; 16. Cleaning nozzle; 17. Adjustment rod; 18. Third transmission sprocket; 19. Fourth sprocket; 20. Unit body. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.
[0022] See also Figure 1-3 The utility model provides a technical solution for an evaporative condensing heat pump hot and cold water unit: it includes a mounting frame 1, a unit body 20 is fixedly installed inside the mounting frame 1, a cold water tank 2 and a hot water tank 3 are fixedly installed in the middle of the unit body 20, a driving motor 4 is fixedly installed on the front support of the upper end of the mounting frame 1, a first transmission sprocket 5 is fixedly installed on the inner transmission shaft part of the driving motor 4, the outer end of the first transmission sprocket 5 is connected to the second transmission sprocket 6 through a chain transmission, a middle transmission screw rod 7 is fixedly installed in the middle of the second transmission sprocket 6, and the transmission screw rod 7 is rotatably connected to the middle of the upper end of the mounting frame 1 through a rotating shaft, a screw nut 8 is threaded on the outer curved surface of the middle of the transmission screw rod 7, a movable frame 9 is fixedly installed on the outer curved surface of the screw nut 8, and the two side ends of the movable frame 9 are penetrated and fitted with a limited position straight sliding connection. Rod 10, and the number of limiting straight sliding rods 10 is two, and they are symmetrically distributed on both sides of the mobile frame 9. The two side ends of the limiting straight sliding rod 10 are fixedly installed on both sides of the upper end of the mounting frame 1, and the bottom support of the mobile frame 9 is fixedly installed with a support rod 11, and the number of support rods 11 is four, and every two support rods 11 form a group, and the two groups of support rods 11 are symmetrically distributed on both sides of the bottom of the mobile frame 9. A cleaning brush 12 is fixedly installed at the bottom of the support rod 11, and the outer brush head part of the cleaning brush 12 is respectively fitted with the inner wall of the cold water tank 2 and the hot water tank 3 for movably connecting, so that the scale on the inner wall of the cold water tank 2 and the hot water tank 3 is cleaned by the cleaning brush 12, and the outer side of the lower end of the cold water tank 2 and the hot water tank 3 is respectively fixedly installed with a sewage pipe 13, and a switch valve is fixedly installed at the outer opening of the sewage pipe 13;
[0023] An extension frame 14 is fixedly installed on the lower side end of the mobile frame 9, and there are four extension frames 14, each two extension frames 14 form a group, and the two groups of extension frames 14 are symmetrically distributed on the lower side end of the mobile frame 9. The outer end of the extension frame 14 is rotatably connected to a cleaning pipe 15 through a rotating shaft, and the upper end of the cleaning pipe 15 is connected to the external water supply pipe through a rotating joint and a connecting hose. The bottom of the cleaning pipe 15 is connected and fixedly installed with a cleaning nozzle 16, and the lower end opening of the cleaning nozzle 16 faces the inner wall of the cold water tank 2 and the hot water tank 3 respectively. The upper end of the mobile frame 9 is rotatably connected to an adjusting rod 17 through a rotating shaft, and the outer curved surface of the lower end of the adjusting rod 17 is threadedly connected to a nut for locking and tightening the adjusting rod 17. The outer curved surface of the upper end of the adjusting rod 17 is fixedly mounted with a third transmission sprocket 18. The outer end of the third transmission sprocket 18 is connected to a fourth sprocket 19 through chain transmission, and the fourth sprocket 19 is fixedly mounted on the outer curved surface of the upper end of the cleaning pipe 15.
[0024] When the second transmission sprocket 6 is turned on, the second transmission sprocket 6 is driven by the chain transmission, and the second transmission sprocket 6 is driven by the chain transmission, so that the transmission screw 7 is driven to rotate. When the transmission screw 7 rotates, the force generated by the threaded connection between the outer curved surface of the transmission screw 7 and the screw nut 8 drives the movable frame 9 to move left and right along the outer curved surface of the limiting straight sliding rod 10. When the movable frame 9 moves left and right, it drives the support rod 11 to move left and right. When the support rod 11 moves left and right, it drives the cleaning brush 12 to move left and right along the inner wall of the cold water tank 2 and the hot water tank 3 to clean.
[0025] When the cleaning brush 12 moves linearly left and right along the inner wall of the cold water tank 2 and the hot water tank 3 to clean, by controlling to open the external water supply pipe, when the external water supply pipe is opened, the cleaning water will be discharged into the cleaning pipe 15 through the connecting hose and the rotating joint. When the clean water is discharged into the cleaning pipe 15, the cleaning water will be sprayed onto the inner wall of the cold water tank 2 and the hot water tank 3 through the cleaning nozzle 16, so that the scale that has been cleaned and fallen off the inner wall of the cold water tank 2 and the hot water tank 3 will follow the water flow to the bottom of the cold water tank 2 and the hot water tank 3 and be discharged outwards through the drain pipe 13, thereby cleaning the scale attached to the inner wall of the cold water tank 2 and the hot water tank 3 and facilitating the discharge of the cleaned and fallen scale outwards;
[0026] At the same time, by rotating the adjusting rod 17, when the adjusting rod 17 rotates, it will drive the third transmission sprocket 18 to rotate. When the third transmission sprocket 18 rotates, it will drive the fourth sprocket 19 to rotate through the sprocket. When the fourth sprocket 19 rotates, it will drive the cleaning tube 15 to rotate. When the cleaning tube 15 rotates, it will drive the cleaning nozzle 16 to rotate and adjust, thereby making it easy to adjust the spray angle of the cleaning nozzle 16.
[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0028] Although the embodiments of the present invention have been shown and described, it will be understood 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 present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. Evaporative condensing heat pump hot and cold water unit, characterized by: The invention comprises a mounting frame (1), wherein a unit body (20) is fixedly mounted inside the mounting frame (1), a cold water tank (2) and a hot water tank (3) are fixedly mounted in the middle of the unit body (20), a driving motor (4) is fixedly mounted on the front support of the upper end of the mounting frame (1), a first driving sprocket (5) is fixedly mounted on the inner transmission shaft portion of the driving motor (4), an outer end of the first driving sprocket (5) is connected to a second driving sprocket (6) through a chain drive, and a middle portion of the second driving sprocket (6) is fixedly mounted. A transmission screw (7) is provided, wherein the outer curved surface of the middle portion of the transmission screw (7) is threadedly connected to a screw nut (8), and a movable frame (9) is fixedly installed on the outer curved surface of the screw nut (8), and both sides of the movable frame (9) are penetrated by a fitting movable connection limited position straight sliding rod (10), and the bottom support of the movable frame (9) is fixedly installed with a support rod (11), and a cleaning brush (12) is fixedly installed at the bottom of the support rod (11), and a sewage pipe (13) is respectively penetrated and fixedly installed on the outer side of the lower end of the cold water tank (2) and the hot water tank (3); An extension frame (14) is fixedly mounted on the lower side end of the movable frame (9), and a cleaning pipe (15) is rotatably connected to the outer end of the extension frame (14) through a rotating shaft. A cleaning nozzle (16) is fixedly mounted on the bottom of the cleaning pipe (15). An adjusting rod (17) is rotatably connected to the upper end of the movable frame (9) through a rotating shaft. A third transmission sprocket (18) is fixedly mounted on the outer curved surface of the upper end of the adjusting rod (17). The outer end of the third transmission sprocket (18) is connected to a fourth sprocket (19) through a chain drive. The fourth sprocket (19) is fixedly mounted on the outer curved surface of the upper end of the cleaning pipe (15).
2. The evaporative condensing heat pump hot and cold water unit according to claim 1, characterized in that: The transmission screw (7) is rotatably connected to the middle of the upper end of the mounting frame (1) through a rotating shaft. There are two limiting straight sliding rods (10), which are symmetrically distributed on both side ends of the moving frame (9). The two side ends of the limiting straight sliding rods (10) are fixedly mounted on both sides of the upper end of the mounting frame (1).
3. The evaporative condensing heat pump hot and cold water unit according to claim 2, characterized in that: There are four support rods (11), with two support rods (11) forming a group, and the two groups of support rods (11) are symmetrically distributed on both sides of the bottom of the movable frame (9).
4. The evaporative condensing heat pump hot and cold water unit according to claim 3, characterized in that: The outer brush head portion of the cleaning brush (12) is respectively fitted with the inner side walls of the cold water tank (2) and the hot water tank (3) for active connection, and a switch valve is fixedly installed at the outer opening of the sewage pipe (13).
5. The evaporative condensing heat pump hot and cold water unit according to claim 4, characterized in that: There are four extension frames (14), with two extension frames (14) forming a group. The two groups of extension frames (14) are symmetrically distributed at the lower side ends of the movable frame (9).
6. The evaporative condensing heat pump hot and cold water unit according to claim 5, characterized in that: The upper end of the cleaning pipe (15) is connected to the external water supply pipe through a rotating joint and a connecting hose, and the lower end opening of the cleaning nozzle (16) faces the inner wall of the cold water tank (2) and the hot water tank (3).
7. The evaporative condensing heat pump hot and cold water unit according to claim 6, characterized in that: The outer curved surface at the lower end of the adjusting rod (17) is threadedly connected to a nut for locking and fastening the adjusting rod (17).