Heat exchange water tank for air source heat pump heating system

Abstract

The heat exchange water tank for the air source heat pump heating system comprises a water tank body with the top open, a top cover is connected to the top of the water tank body through a flange, penetrating openings are formed in the bottom of the water tank body and the top of the top cover in a penetrating mode, and a water inlet is formed in the position, close to the bottom end, of the outer wall of the water tank body. A water outlet is formed in the position, close to the top end, of the outer wall of the water tank, a medium input pipe is arranged on the top cover in a penetrating mode through a penetrating opening, and the medium input pipe is connected with the top cover in a sealed mode; according to the utility model, when the heat exchange efficiency is reduced due to the surface structure of the heat exchange tube, the medium input tube, the top plate, the upper mounting plate, the connecting tube, the heat exchange tube, the lower mounting plate, the bottom plate, the medium output tube and the like can be drawn out from the water tank by detaching the top cover, so that the scale adhered to the surface can be conveniently cleaned; and the top plate, the upper mounting plate, the connecting pipe, the heat exchange pipe, the lower mounting plate, the bottom plate and the medium output pipe can be detached from one another so as to be independently cleaned or replaced, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to a relatively large range, specifically a heat exchange water tank for an air source heat pump heating system. Background Technique

[0002] Air source heat pump systems are currently being more and more widely used in heating, cooling, and hot water supply, and can provide heating capacity in winter, cooling capacity in summer, and daily hot water supply for users. The system consists of an air source heat pump heating and cooling unit, a heat pump circulation pump, a buffer water tank, heating and cooling terminals, and pipelines. If users have a demand for domestic hot water at the same time, a heat exchange water tank needs to be added. Most of the heat exchange water tanks are of a closed coil structure, and the heat pump medium flows through the coil to indirectly heat the water in the tank to provide domestic hot water for users.

[0003] Since most of the current heat exchange water tanks are of a closed coil structure, it is not convenient to clean the inside after long-term use of the heat exchange water tank. And the surface of the heat exchange coil is in long-term contact with domestic hot water and is prone to scale formation. The coil structure limits the cleaning operation of its surface, and it is not convenient to remove the scale, which needs to be improved. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a heat exchange water tank for an air source heat pump heating system to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A heat exchange water tank for an air source heat pump heating system includes a water tank with an open top. A top cover is flange-connected to the top of the water tank. Through holes are provided through the bottom of the water tank and the top of the top cover. An inlet is provided on the outer wall of the water tank near the bottom end, and an outlet is provided on the outer wall of the water tank near the top end. A medium input pipe passes through the through hole on the top cover and is hermetically connected to the top cover. A top plate is fixedly sleeved at the bottom end of the medium input pipe. An upper mounting plate is arranged below the top plate. A medium output pipe passes through the through hole at the bottom of the water tank and is hermetically connected to the water tank. A bottom plate is fixedly sleeved at the top end of the medium output pipe. A lower mounting plate is arranged above the bottom plate. Through holes are provided at corresponding positions on the upper mounting plate and the lower mounting plate. A plurality of connecting pipes are fixedly connected to the top of the upper mounting plate and the bottom of the lower mounting plate. A plurality of heat exchange pipes are arranged between the upper mounting plate and the lower mounting plate. Both ends of the heat exchange pipe are communicated with the corresponding connecting pipes through the through holes, and the plurality of heat exchange pipes are sequentially connected in series through the connecting pipes to form a serpentine heat exchange flow path. The medium input pipe and the medium output pipe are respectively communicated with both ends of the serpentine heat exchange flow path.

[0007] As a further solution of the utility model: A number of long bolt screws are commonly passed through the bottom plate, the lower mounting plate, the upper mounting plate and the top plate, and a nut is cooperatively connected after the top end of the long bolt screw passes through the top plate. Through holes adapted to the diameter of the long bolt screws are provided on the bottom plate, the lower mounting plate, the upper mounting plate and the top plate.

[0008] As a further solution of the utility model: Rubber gaskets are provided between the top plate, the bottom plate and the corresponding connecting pipes.

[0009] As a further solution of the utility model: Sleeve pipes are fixedly connected to the corresponding positions at the bottom of the upper mounting plate and the top of the lower mounting plate corresponding to each through hole. Both ends of the heat exchange pipe are located in the corresponding sleeve pipes. Retaining rings are fixedly sleeved on the outer wall of the heat exchange pipe near both ends. A sealing gasket is provided between the retaining ring and the corresponding sleeve pipe. Sealing rings are nested on the outer wall of the heat exchange pipe near both ends. The outer wall of the sealing ring fits with the inner wall of the corresponding sleeve pipe.

[0010] As a further solution of the utility model: Pressing plates are fixedly sleeved on the outer walls of the medium input pipe and the medium output pipe. The pressing plates are all located inside the water tank. Rubber gaskets are provided on the outer walls of the pressing plates, and the bottom surface of the top cover and the inner wall of the bottom of the water tank are in contact with the corresponding rubber gaskets.

[0011] As a further solution of the utility model: A plurality of positioning sleeves are fixedly connected to the inner wall of the bottom of the water tank. Positioning pins are passed through the positioning sleeves. The top ends of the positioning pins are fixedly connected to the bottom of the bottom plate.

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

[0013] In the utility model, when the surface structure of the heat exchange pipe causes the heat exchange efficiency to decrease, the top cover is removed, and then the medium input pipe, the top plate, the upper mounting plate, the connecting pipe, the heat exchange pipe, the lower mounting plate, the bottom plate and the medium output pipe can be pulled out from the water tank, so as to facilitate the cleaning of the scale adhered to their surfaces. Moreover, the top plate, the upper mounting plate, the connecting pipe, the heat exchange pipe, the lower mounting plate, the bottom plate and the medium output pipe can be disassembled from each other to be cleaned or replaced separately, and the use effect is good. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of a heat exchange water tank for an air source heat pump heating system.

[0015] Figure 2 It is a schematic top view of the upper mounting plate of a heat exchange water tank for an air source heat pump heating system.

[0016] Figure 3 It is a schematic bottom view of the lower mounting plate of a heat exchange water tank for an air source heat pump heating system.

[0017] Figure 4 It is a schematic diagram of the connection structure between the heat exchange tube and the casing in the heat exchange water tank for an air source heat pump heating system.

[0018] Among them, water tank 1, top cover 2, through hole 3, water inlet 4, water outlet 5, medium input pipe 6, top plate 7, upper mounting plate 8, through hole 9, connecting pipe 10, casing 11, heat exchange tube 12, retaining ring 13, gasket 14, sealing ring 15, lower mounting plate 16, bottom plate 17, medium output pipe 18, long rod bolt 19, nut 20, perforation 21, positioning sleeve 22, positioning pin 23, pressing plate 24, rubber washer 25. Specific embodiments

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0020] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0021] It should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation in the specification, and therefore cannot be understood as a limitation of the present utility model.

[0022] In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0023] Please refer to Figures 1 to 4, in the embodiment of the present utility model, a heat exchange water tank for an air source heat pump heating system includes a water tank 1 with an open top. A top cover 2 is flange-connected to the top of the water tank 1. Through holes 3 are provided through the bottom of the water tank 1 and the top of the top cover 2. A water inlet 4 is provided on the outer wall of the water tank 1 near the bottom end, and a water outlet 5 is provided on the outer wall of the water tank 1 near the top end. A medium input pipe 6 passes through the through hole 3 on the top cover 2, and the medium input pipe 6 is sealingly connected to the top cover 2. A top plate 7 is fixedly sleeved at the bottom end of the medium input pipe 6. An upper mounting plate 8 is arranged below the top plate 7. A medium output pipe 18 passes through the through hole 3 at the bottom of the water tank 1, and the medium output pipe 18 is sealingly connected to the water tank 1. A bottom plate 17 is fixedly sleeved at the top end of the medium output pipe 18. A lower mounting plate 16 is arranged above the bottom plate 17. Through holes 9 are provided through the corresponding positions on the upper mounting plate 8 and the lower mounting plate 16. A plurality of connecting pipes 10 are fixedly connected to the top of the upper mounting plate 8 and the bottom of the lower mounting plate 16. A plurality of heat exchange pipes 12 are arranged between the upper mounting plate 8 and the lower mounting plate 16. Both ends of the heat exchange pipe 12 are communicated with the corresponding connecting pipes 10 through the through holes 9, and the plurality of heat exchange pipes 12 are sequentially connected in series through the connecting pipes 10 to form a serpentine heat exchange flow path. The medium input pipe 6 and the medium output pipe 18 are respectively communicated with both ends of the serpentine heat exchange flow path.

[0024] By adopting the above scheme, in use, the heat exchange medium of the air source heat pump heating system enters the serpentine heat exchange flow path from the medium input pipe 6 and is discharged from the medium output pipe 18. The domestic water enters the water tank 1 from the water inlet 4 and is discharged from the water outlet 5, so as to contact the serpentine heat exchange flow path composed of a plurality of heat exchange pipes 12 in the water tank 1, thereby realizing the heat exchange between the domestic water and the heat exchange medium to heat the domestic water.

[0025] When the heat exchange water tank needs to be cleaned after long-term use, first remove the various pipelines connected thereto to empty the water and heat exchange medium in the water tank 1, and then remove the top cover 2, so that the medium input pipe 6, the top plate 7, the upper mounting plate 8, the connecting pipes 10, the heat exchange pipes 12, the lower mounting plate 16, the bottom plate 17 and the medium output pipe 18 can be taken out of the water tank 1, thus facilitating the cleaning of the scale adhered to its surface.

[0026] Specifically combined with Figures 1 - 3, in an embodiment of the present utility model, a plurality of long bolt bolts 19 are commonly passed through the bottom plate 17, the lower mounting plate 16, the upper mounting plate 8 and the top plate 7, and a nut 20 is cooperatively connected after the top end of the long bolt bolt 19 passes through the top plate 7. Through holes 21 adapted to the diameter of the long bolt bolt 19 are provided on the bottom plate 17, the lower mounting plate 16, the upper mounting plate 8 and the top plate 7. Rubber gaskets are provided between the top plate 7, the bottom plate 17 and the corresponding connecting pipes 10 to ensure the sealing performance between the top plate 7, the bottom plate 17 and the corresponding connecting pipes 10.

[0027] Through the cooperation of the long bolt bolt 19 and the nut 20, the bottom plate 17, the lower mounting plate 16, the upper mounting plate 8 and the top plate 7 can be mutually tightened, and each heat exchange tube 12 can be fixed between the upper mounting plate 8 and the lower mounting plate 16.

[0028] Specifically combined with Figure 1 and Figure 4 , in an embodiment of the present utility model, sleeves 11 are fixedly connected to the corresponding positions of the bottom of the upper mounting plate 8 and the top of the lower mounting plate 16 with respect to each through hole 9. Both ends of the heat exchange tube 12 are located in the corresponding sleeves 11. Retaining rings 13 are fixedly sleeved on the outer wall of the heat exchange tube 12 near both ends. A sealing gasket 14 is provided between the retaining ring 13 and the corresponding sleeve 11. Sealing rings 15 are nested on the outer wall of the heat exchange tube 12 near both ends. The outer wall of the sealing ring 15 fits with the inner wall of the corresponding sleeve 11.

[0029] Through the cooperation of the sealing ring 15 and the sealing gasket 14 with the sleeve 11, the sealing performance between the end of the heat exchange tube 12 and the sleeve 11 can be ensured, and the structure is simple and easy to install.

[0030] Specifically combined with Figure 1 , in an embodiment of the present utility model, specifically combined with the figure, pressing plates 24 are fixedly sleeved on the outer walls of the medium input pipe 6 and the medium output pipe 18. The pressing plates 24 are all located in the water tank 1. Rubber washers 25 are provided on the outer walls of the pressing plates 24, and the bottom surface of the top cover 2 and the bottom inner wall of the water tank 1 are in contact with the corresponding rubber washers 25.

[0031] Through the arrangement of the pressing plate 24 and the rubber washer 25, the sealed connection between the medium input pipe 6 and the top cover 2 can be realized, and the sealed connection between the medium output pipe 18 and the bottom through hole 3 of the water tank 1 can be realized.

[0032] Specifically combined with Figure 1 , in an embodiment of the present utility model, a plurality of positioning sleeves 22 are fixedly connected to the bottom inner wall of the water tank 1. Positioning pins 23 are passed through the positioning sleeves 22, and the top ends of the positioning pins 23 are fixedly connected to the bottom of the bottom plate 17.

[0033] Through the arrangement of the positioning pin 23 and the positioning sleeve 22, the bottom plate 17 can be positioned and supported inside the water tank 1.

[0034] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A water exchange tank for an air source heat pump heating system, characterized in that: The invention comprises a water tank (1) with an open top, wherein the top flange of the water tank (1) is connected to a top cover (2), the bottom of the water tank (1) and the top of the top cover (2) are both penetrated by a through hole (3), the outer wall of the water tank (1) is provided with a water inlet (4) near the bottom end, and the outer wall of the water tank (1) is provided with a water outlet (5) near the top end, a medium input pipe (6) is penetrated through the through hole (3) on the top cover (2), the medium input pipe (6) is sealedly connected to the top cover (2), the bottom end of the medium input pipe (6) is fixedly sleeved with a top plate (7), an upper mounting plate (8) is provided below the top plate (7), the bottom of the water tank (1) is penetrated by a medium output pipe (18) through the through hole (3), the medium output pipe (18) is sealedly connected to the water tank (1), and the The top end of the medium output pipe (18) is fixedly sleeved with a bottom plate (17), a lower mounting plate (16) is arranged above the bottom plate (17), through holes (9) are arranged at corresponding positions on the upper mounting plate (8) and the lower mounting plate (16), a plurality of connecting pipes (10) are fixedly connected to the top of the upper mounting plate (8) and the bottom of the lower mounting plate (16), a plurality of heat exchange pipes (12) are arranged between the upper mounting plate (8) and the lower mounting plate (16), both ends of the heat exchange pipes (12) are connected to the corresponding connecting pipes (10) through the through holes (9), and the plurality of heat exchange pipes (12) are connected in series in sequence through the connecting pipes (10) to form a serpentine heat exchange flow channel, and the medium input pipe (6) and the medium output pipe (18) are respectively connected to the two ends of the serpentine heat exchange flow channel.

2. A water exchange tank for an air source heat pump heating system according to claim 1, characterized in that: The bottom plate (17), the lower mounting plate (16), the upper mounting plate (8) and the top plate (7) are provided with a plurality of long-rod bolts (19), and the top ends of the long-rod bolts (19) pass through the top plate (7) and are connected with nuts (20). The bottom plate (17), the lower mounting plate (16), the upper mounting plate (8) and the top plate (7) are provided with through holes (21) that are compatible with the diameters of the long-rod bolts (19).

3. A water exchange tank for an air source heat pump heating system according to claim 1, characterized in that: Rubber gaskets are provided between the top plate (7), the bottom plate (17) and the corresponding connecting pipes (10).

4. A water exchange tank for an air source heat pump heating system according to claim 1, characterized in that: The bottom of the upper mounting plate (8) and the top of the lower mounting plate (16) are fixedly connected to the corresponding positions of each through hole (9) with a sleeve (11); the two ends of the heat exchange tube (12) are located in the corresponding sleeve (11); the outer wall of the heat exchange tube (12) is fixedly sleeved with a retaining ring (13) near the two ends; a sealing gasket (14) is provided between the retaining ring (13) and the corresponding sleeve (11); the outer wall of the heat exchange tube (12) is embedded with a sealing ring (15) near the two ends; the outer wall of the sealing ring (15) fits with the inner wall of the corresponding sleeve (11).

5. A water exchange tank for an air source heat pump heating system according to claim 1, characterized in that: A pressure plate (24) is fixedly sleeved on the outer walls of the medium input pipe (6) and the medium output pipe (18), and the pressure plates (24) are both located in the water tank (1). A rubber gasket (25) is provided on the outer wall of the pressure plate (24), and the bottom surface of the top cover (2) and the bottom inner wall of the water tank (1) are in contact with the corresponding rubber gasket (25).

6. A water exchange tank for an air source heat pump heating system according to claim 5, characterized in that: A plurality of positioning sleeves (22) are fixedly connected to the inner wall of the bottom of the water tank (1), and positioning pins (23) are pierced through the positioning sleeves (22), and the top ends of the positioning pins (23) are fixedly connected to the bottom of the bottom plate (17).

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