Cold and heat source supply device with interactive phase change energy storage function

Abstract

The cold and heat source supply device with the interactive phase change energy storage function comprises a box body, a water return pipe and a water supply pipe, a control box is installed at one end in the box body, and an access door is arranged at the end, close to the control box, of the box body. According to the cold and heat source supply device with the interactive phase change energy storage function, by arranging the cold storage unit, the heat storage unit and the control pipeline of the cold storage unit and the heat storage unit, cold storage or heat storage can be conducted on the cold storage unit and the heat storage unit through the air-cooled heat pump unit in the valley electricity time period, and the cold storage unit and the heat storage unit are preferentially used for cooling or heating in the flat peak time period and the peak time period; when cold supply or heat supply is insufficient, cold supply or heat supply is supplemented through the air-cooled heat pump unit, so that energy in the valley electricity time period can be effectively utilized, energy in the flat peak time period and the peak time period is effectively saved, and meanwhile the cold supply or heat supply cost of the unit is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to phase change energy storage technical field, concretely is a cold, heat source supply device with interactive phase change energy storage function. BACKGROUND

[0002] In summer or winter, need to use the cold, heat source supply device to carry out cooling or heating, make the indoor reach the suitable temperature, and the existing large -scale cold, heat source supply device mainly carries out cooling or heating by air -cooled heat pump unit.

[0003] Although the existing cold, heat source supply device can realize cooling or heating, but in use, it is found that, because in the valley electricity time period of night, electricity is cheap, and flat peak and peak time period, electricity is expensive, and the cold, heat source supply device is generally used in daytime, lead to the use cost of cold, heat source supply device is higher, cannot utilize the cheap valley electricity of night, inconvenient to use, therefore we propose a cold, heat source supply device with interactive phase change energy storage function to solve the problem raised in the above. UTILITY MODEL CONTENT

[0004] 1. The technical problem to be solved by the utility model is:

[0005] The utility model aims at providing a cold, heat source supply device with interactive phase change energy storage function to solve the problems in the above background.

[0006] 2. Technical scheme:

[0007] To achieve the above object, the utility model provides the following technical scheme: a cold, heat source supply device with interactive phase change energy storage function, including box, backwater pipe and water supply pipe, the inside one end of box is installed with control box, the one end close to control box of box is provided with access door, wherein,

[0008] The inside close to the middle of box is symmetrically installed with primary pump and secondary pump, the inside close to primary pump of box is installed with softened water tank, the inside close to softened water tank of box is installed with water softener, the one end outside of box is provided with air -cooled heat pump unit, cold storage unit and heat storage unit, the one end of backwater pipe is linked with cold storage unit and heat storage unit respectively, the one end of water supply pipe is linked with secondary pump, the opening end of backwater pipe and water supply pipe is connected through connecting pipe, the connecting pipe is provided with electric differential pressure bypass valve, the one end of secondary pump is connected with cold storage unit and heat storage unit respectively through first communication pipe, and the one end of primary pump is connected with backwater pipe through second communication pipe.

[0009] The air-cooled heat pump unit is connected with the return water pipe through a third communicating pipe, the third communicating pipe is connected with the first communicating pipe through a fourth communicating pipe, the second communicating pipe is connected with the softened water tank through a fifth communicating pipe, the primary pump is connected with the third communicating pipe through a sixth communicating pipe, the BV-1 electric on-off valve is installed on the fourth communicating pipe, the BV-2 electric on-off valve is installed on the side of the first communicating pipe close to the secondary pump, the BV-4 electric on-off valve is installed on the connecting section of the return water pipe and the cold storage unit, the BV-5 electric on-off valve is installed on the connecting section of the return water pipe and the heat storage unit, the BV-6 electric on-off valve is installed on the second communicating pipe, and the BV-7 electric on-off valve is installed on the third communicating pipe.

[0010] Preferably, the primary pump (4) and the secondary pump (5) are each provided with at least two pumps.

[0011] Preferably, the air-cooled heat pump unit (8) can be provided with one or more groups.

[0012] Preferably, the opening ends of the return water pipe (11) and the water supply pipe (12) are connected through a connecting pipe (13), and the electric differential pressure bypass valve (14) is arranged on the connecting pipe (13).

[0013] Preferably, the phase change temperature of the cold storage unit is greater than or equal to 7.5 DEG C.

[0014] Preferably, the phase change temperature of the heat storage unit is greater than or equal to 58 DEG C.

[0015] 3. Beneficial effects:

[0016] Compared with the prior art, the cold and heat source supply device with interactive phase change energy storage function has the following specific contents:

[0017] (1) Through the cold storage unit, the heat storage unit and the control pipeline, the air-cooled heat pump unit can be used for cold storage or heat storage of the cold storage unit and the heat storage unit during the valley electricity time period, the cold storage unit and the heat storage unit are preferentially used for cold supply or heat supply during the flat peak period and the peak period, and the air-cooled heat pump unit is used for supplementary cold supply or heat supply when the cold supply or heat supply is insufficient, so that the energy of the valley electricity time period can be effectively utilized, the energy of the flat peak period and the peak period is effectively saved, and the cold supply or heat supply cost of the unit is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a top view structure schematic view of the utility model;

[0019] Figure 2 It is a system principle structure schematic view of the utility model;

[0020] Figure 3The refrigeration mode control logic structure schematic diagram of the utility model;

[0021] Figure 4 The heating mode control logic structure schematic diagram of the utility model;

[0022] Figure 5 The utility model discloses Figure 2 The structure schematic diagram of the legend.

[0023] In the drawing: 1, box body;2, control box;3, access door;4, primary pump;5, secondary pump;6, softened water tank;7, water softener;8, air-cooled heat pump unit;9, cold storage unit;10, heat storage unit;11, return water pipe;12, water supply pipe;13, connecting pipe;14, electric differential pressure bypass valve;15, first communication pipe;16, second communication pipe;17, third communication pipe;18, fourth communication pipe;19, fifth communication pipe;20, sixth communication pipe;21, BV-1 electric switch valve;22, BV-2 electric switch valve;23, BV-4 electric switch valve;24, BV-5 electric switch valve;25, BV-6 electric switch valve;26, BV-7 electric switch valve. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the utility model, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0025] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0026] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0027] In the utility model, unless another explicit provision and limitation, the terms "mount", "connect", "fix", "have" and other terms should be broad understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can indirectly connect through the intermediate medium, can be the communication of two elements inside. For ordinary skilled in the art, can understand the concrete meaning of the above terms in the utility model according to specific circumstances. Embodiment

[0028] Please refer to Figures 1 to 5 A cold, heat source supply device with interactive phase change energy storage function, including box 1, the inside one end of box 1 is installed with control box 2, the one end of box 1 close to control box 2 is provided with access door 3, wherein,

[0029] The inside of the close to the middle of box 1 is symmetrically installed with primary pump 4 and secondary pump 5, the inside of box 1 close to primary pump 4 is installed with softened water tank 6, the inside of box 1 close to softened water tank 6 is installed with softener 7, the one end of box 1 is provided with air-cooled heat pump unit 8, cold storage unit 9 and heat storage unit 10 outside, the one end of return water pipe 11 is respectively communicated with cold storage unit 9, heat storage unit 10, the one end of water supply pipe 12 is communicated with secondary pump 5, the opening end of return water pipe 11 and water supply pipe 12 is connected through connecting pipe 13, electric differential bypass valve 14 is arranged on connecting pipe 13, the one end of secondary pump 5 away from water supply pipe 12 is respectively communicated with cold storage unit 9, heat storage unit 10 through first communication pipe 15, and the one end of primary pump 4 is communicated with return water pipe 11 through second communication pipe 16;

[0030] Air-cooled heat pump unit 8 is communicated with return water pipe 11 through third communication pipe 17, third communication pipe 17 is communicated with first communication pipe 15 through fourth communication pipe 18, second communication pipe 16 is communicated with softened water tank 6 through fifth communication pipe 19, primary pump 4 is communicated with third communication pipe 17 through sixth communication pipe 20, BV-1 electric switch valve 21 is installed on fourth communication pipe 18, BV-2 electric switch valve 22 is installed on the side of first communication pipe 15 close to secondary pump 5, BV-4 electric switch valve 23 is installed on the connecting section of return water pipe 11 and cold storage unit 9, BV-5 electric switch valve 24 is installed on the connecting section of return water pipe 11 and heat storage unit 10, BV-6 electric switch valve 25 is installed on second communication pipe 16, and BV-7 electric switch valve 26 is installed on third communication pipe 17.

[0031] In summer refrigeration mode, open BV-1 electric switch valve 21, BV-2 electric switch valve 22, BV-7 electric switch valve 26, close BV-4 electric switch valve 23, BV-5 electric switch valve 24, BV-6 electric switch valve 25, close primary pump 4, open secondary pump 5, delay 37-300S, open main machine, open BV-6 electric switch valve 25 at night 0-8 o'clock when using valley electricity, delay 38-60S, open primary pump 4, delay 39-20S, close secondary pump 5, BV-2 electric switch valve 22, BV-7 electric switch valve 26, when the temperature difference of the energy storage device is less than 1℃, delay 40-300S, close main machine, delay 41-300S, close primary pump 4, close BV-6 electric switch valve 25, BV-1 electric switch valve 21 and BV-4 electric switch valve 23, during valley electricity period, cold storage is carried out through cold storage unit 9, after 8 o'clock, cold release mode is enabled, BV-1 electric switch valve 21, BV-5 electric switch valve 24, BV-6 electric switch valve 25, BV-7 electric switch valve 26 and primary pump 4 are closed, BV-4 electric switch valve 23, BV-2 electric switch valve 22 and secondary pump 5 are opened, when the outlet water temperature is lower than the set temperature, switch to direct supply cold mode, open BV-1 electric switch valve 21, BV-2 electric switch valve 22, BV-7 electric switch valve 26, close BV-4 electric switch valve 23, BV-5 electric switch valve 24, BV-6 electric switch valve 25, open secondary pump 5, delay 42-300S, open main machine, when the time is in the cold storage time period, open BV-6 electric switch valve 25, BV-4 electric switch valve 23, delay 38-60S, open primary pump 4, delay 39-20S, close secondary pump 5, BV-2 electric switch valve 22, BV-7 electric switch valve 26 and BV-5 electric switch valve 24;

[0032] In winter heating mode, open BV-1 electric switch valve 21, BV-2 electric switch valve 22, BV-7 electric switch valve 26, close BV-4 electric switch valve 23, BV-5 electric switch valve 24, BV-6 electric switch valve 25, close primary pump 4, open secondary pump 5, delay 47-300S, open main machine, open BV-6 electric switch valve 25 at night 0-8 point using valley electricity, delay 48-60S, open primary pump 4, delay 49-20S, close secondary pump 5 and BV-2 electric switch valve 22, BV-7 electric switch valve 26, when the temperature difference of the energy storage device is less than 1℃, delay 50-300S, close main machine, delay 51-300S, close primary pump 4, close BV-6 electric switch valve 25, BV-1 electric switch valve 21 and BV-4 electric switch valve 23, during valley electricity, through the heat storage unit 10, heat storage, after 8 o'clock, enable heat release mode, close BV-1 electric switch valve 21, BV-4 electric switch valve 23, BV-6 electric switch valve 25, BV-7 electric switch valve 26 and primary pump 4, open BV-5 electric switch valve 24, BV-2 electric switch valve 22 and secondary pump 5, when the outlet water temperature is lower than the set temperature, switch to direct heating mode, open BV-1 electric switch valve 21, BV-2 electric switch valve 22, BV-7 electric switch valve 26, close BV-4 electric switch valve 23, BV-5 electric switch valve 24, BV-6 electric switch valve 25, open secondary pump 5, delay 52-300S, open main machine, when the time is in the heat storage period, open BV-6 electric switch valve 25, BV-5 electric switch valve 24, delay 58-60S, open primary pump 4, delay 59-20S, close secondary pump 5, BV-2 electric switch valve 22, BV-7 electric switch valve 26 and BV-4 electric switch valve 23;

[0033] Through the setting of the cold storage unit 9, the heat storage unit 10 and the control pipeline thereof, the cold storage or heat storage can be performed on the cold storage unit 9 and the heat storage unit 10 by the air-cooled heat pump unit 8 during the valley electricity period, the cold or heat supply can be preferentially performed by the cold storage unit 9 and the heat storage unit 10 during the flat peak period and the peak period, and the cold or heat supply can be supplemented by the air-cooled heat pump unit 8 when the cold or heat supply is insufficient, thereby effectively utilizing the energy during the valley electricity period, effectively saving the energy during the flat peak and peak periods, and reducing the cold or heat supply cost of the unit.

[0034] Please refer to Figures 1 to 5 The primary pump 4 and the secondary pump 5 are each provided with at least two, the air-cooled heat pump unit 8 is provided with one group or multiple groups, the opening ends of the return water pipe 11 and the water supply pipe 12 are connected through the connecting pipe 13, and the electric differential pressure bypass valve 14 is arranged on the connecting pipe 13.

[0035] Please refer to Figures 1 to 5The phase change temperature of the cold storage unit 9 is ≥7.5℃, and the phase change temperature of the heat storage unit 10 is ≥58℃.

[0036] Working principle: When using this cold and heat source supply device with interactive phase change energy storage function, such as Figures 1 to 5 As shown, in summer cooling mode, open BV-1 electric valve 21, BV-2 electric valve 22, and BV-7 electric valve 26; close BV-4 electric valve 23, BV-5 electric valve 24, and BV-6 electric valve 25; shut down primary pump 4; start secondary pump 5; delay for 37-300 seconds; and start the main unit. When using off-peak electricity between 0:00 and 8:00 AM, open BV-6 electric valve 25; delay for 38-60 seconds; and start the main unit. Secondary pump 4, after a delay of 39-20 seconds, shuts off secondary pump 5 and electric switch valves 22 (BV-2) and 26 (BV-7). When the temperature difference between the inlet and outlet water of the energy storage device is less than 1℃, after a delay of 40-300 seconds, shuts off the main unit. After a delay of 41-300 seconds, primary pump 4 is shut down, and electric switch valves 25 (BV-6), 21 (BV-1), and 23 (BV-4) are closed. During off-peak electricity hours, cold storage is carried out through the cold storage unit 9. After 8:00 AM, cold storage is activated. In the initial cooling mode, close electric valves BV-1 21, BV-5 24, BV-6 25, BV-7 26, and primary pump 4; open electric valves BV-4 23, BV-2 22, and secondary pump 5. When the outlet water temperature is lower than the set temperature, switch to direct cooling mode, opening electric valves BV-1 21, BV-2 22, and BV-7 26, and closing electric valves BV-4 23, BV-2 22, and secondary pump 5. Switch valve 23, BV-5 electric switch valve 24, and BV-6 electric switch valve 25, start secondary pump 5, delay 42-300S, start the main unit. When the time is in the cold storage period, open BV-6 electric switch valve 25 and BV-4 electric switch valve 23, delay 38-60S, start primary pump 4, delay 39-20S, and close secondary pump 5, BV-2 electric switch valve 22, BV-7 electric switch valve 26, and BV-5 electric switch valve 24.

[0037] In winter heating mode, open BV-1 electric switch valve 21, BV-2 electric switch valve 22, BV-7 electric switch valve 26, close BV-4 electric switch valve 23, BV-5 electric switch valve 24, BV-6 electric switch valve 25, close primary pump 4, open secondary pump 5, delay 47-300S, open main machine, open BV-6 electric switch valve 25 at night 0-8 o'clock using valley electricity, delay 48-60S, open primary pump 4, delay 49-20S, close secondary pump 5 and BV-2 electric switch valve 22, BV-7 electric switch valve 26, when the temperature difference of the energy storage device is less than 1℃, delay 50-300S, close main machine, delay 51-300S, close primary pump 4, close BV-6 electric switch valve 25, BV-1 electric switch valve 21 and BV-4 electric switch valve 23, during the valley electricity period, heat storage is carried out through the heat storage unit 10, after 8 o'clock, heat release mode is used, BV-1 electric switch valve 21, BV-4 electric switch valve 23, BV-6 electric switch valve 25, BV-7 electric switch valve 26 and primary pump 4 are closed, BV-5 electric switch valve 24, BV-2 electric switch valve 22 and secondary pump 5 are opened, when the outlet water temperature is lower than the set temperature, switch to direct heating mode, open BV-1 electric switch valve 21, BV-2 electric switch valve 22, BV-7 electric switch valve 26, close BV-4 electric switch valve 23, BV-5 electric switch valve 24, BV-6 electric switch valve 25, open secondary pump 5, delay 52-300S, open main machine, when the time is in the heat storage period, open BV-6 electric switch valve 25, BV-5 electric switch valve 24, delay 58-60S, open primary pump 4, delay 59-20S, close secondary pump 5, BV-2 electric switch valve 22, BV-7 electric switch valve 26 and BV-4 electric switch valve 23, through the set cold storage unit 9, heat storage unit 10 and its control pipeline, during the valley electricity period, cold storage or heat storage is carried out for the cold storage unit 9, heat storage unit 10 through the air-cooled heat pump unit 8, during the flat peak period and peak period, the cold storage unit 9, heat storage unit 10 are preferentially used for cooling or heating, when the cooling or heating is insufficient, the air-cooled heat pump unit 8 is used for supplementing cooling or heating, thereby effectively utilizing the energy during the valley electricity period, not only effectively saving the energy during the flat peak and peak periods, but also reducing the cooling or heating cost of the unit.

[0038] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0039] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cold and heat source supply device with interactive phase change energy storage function, characterized in that, Including box (1), backwater pipe (11) and water supply pipe (12), the inside one end of the box (1) is installed with control box (2), the one end of the box (1) is provided with access door (3) close to control box (2), wherein, The inside of the box (1) close to the middle is symmetrically installed with primary pump (4) and secondary pump (5), the inside of the box (1) close to softening water tank (6) is installed with softener (7), the one end of the box (1) is provided with air-cooled heat pump unit (8), cold storage unit (9) and heat storage unit (10) outside, the one end of backwater pipe (11) is communicated with cold storage unit (9) and heat storage unit (10) respectively, the one end of water supply pipe (12) is communicated with secondary pump (5), the one end of secondary pump (5) is communicated with cold storage unit (9) and heat storage unit (10) through first communication pipe (15) away from water supply pipe (12), the one end of primary pump (4) is communicated with backwater pipe (11) through second communication pipe (16); The air-cooled heat pump unit (8) is communicated with backwater pipe (11) through third communication pipe (17), the third communication pipe (17) is communicated with first communication pipe (15) through fourth communication pipe (18), the second communication pipe (16) is communicated with softening water tank (6) through fifth communication pipe (19), the primary pump (4) is communicated with third communication pipe (17) through sixth communication pipe (20), the fourth communication pipe (18) is installed with BV-1 electric switch valve (21), the side of first communication pipe (15) close to secondary pump (5) is installed with BV-2 electric switch valve (22), the connection section of backwater pipe (11) and cold storage unit (9) is installed with BV-4 electric switch valve (23), the connection section of backwater pipe (11) and heat storage unit (10) is installed with BV-5 electric switch valve (24), the second communication pipe (16) is installed with BV-6 electric switch valve (25), the third communication pipe (17) is installed with BV-7 electric switch valve (26).

2. A cold and heat source supply device with interactive phase change energy storage function according to claim 1, characterized in that: The primary pump (4) and secondary pump (5) are provided with at least two.

3. The cold and heat source supply device with interactive phase change energy storage function according to claim 1, characterized in that: The air-cooled heat pump unit (8) can be provided with one group or multiple groups.

4. The cold and heat source supply device with interactive phase change energy storage function according to claim 1, characterized in that: The opening end of backwater pipe (11) and water supply pipe (12) is connected through connecting pipe (13), the connecting pipe (13) is provided with electric differential bypass valve (14).

5. The cold and heat source supply device with interactive phase change energy storage function according to claim 1, characterized in that: The phase change temperature of cold storage unit (9) is ≥7.5 ℃.

6. The cold and heat source supply device with interactive phase change energy storage function according to claim 1, characterized in that: The phase change temperature of heat storage unit (10) is ≥58 ℃.

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