Heat storage water tank with heat storage and release functions

Abstract

The utility model discloses a heat storage water tank with heat storage and release functions, and belongs to the field of heat storage water tanks. The heat storage water tank with the heat storage and release functions comprises an inner container, the upper end of the interior of the inner container extends towards one side of the exterior of the inner container to be provided with a water inlet pipe, a storage frame with a storage cavity is arranged outside the inner container in a surrounding mode, and a reserved cavity is reserved in the side, facing the water inlet pipe, of the exterior of the storage frame. The layered heat storage water tank solves the problems that when an existing layered heat storage water tank is used and stores hot water, high-temperature liquid can make contact with low-temperature liquid, originally located at the lower end, in an inner container, heat of the high-temperature liquid can be absorbed by the low-temperature liquid, and heat loss is caused. The stored liquid is continuously and directly discharged into the upper end of the interior of the inner container through the water inlet pipe, so that the warm liquid can be continuously located at the uppermost end of the interior of the inner container and can be continuously extracted by the first water outlet pipe, and the contact frequency between low-temperature liquid and high-temperature liquid is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of power grid peak shaving heat storage water tank, concretely to a heat storage water tank with heat storage and release function. BACKGROUND

[0002] The heat storage water tank with heat storage and release function is a kind of high-efficiency energy utilization equipment, which can store heat energy, store water in the tank by heating, accumulate heat energy, release the heat stored previously when the power grid needs heat energy during peak shaving period, meet the user's demand, which not only helps to balance energy supply and demand and improve energy utilization efficiency, but also reduces energy waste by storing excess heat energy, plays an important role in energy saving and emission reduction and improves energy use flexibility, and is an indispensable part of modern energy system;

[0003] The Chinese patent with publication number CN206905308U discloses a layered heat storage water tank, which comprises an inner container and a baffle assembly, the top of the inner container is provided with an opening, the baffle assembly comprises a baffle, a connecting rod and an upper end cover, the connecting rod and the baffle are arranged in the inner container, the baffle is fixedly connected with the upper end cover arranged outside the inner container through the connecting rod, and the upper end cover is detachably covered on the opening of the inner container, which can effectively improve the cold-hot water layering effect in the inner container, and the inner container and the baffle can be separated for processing such as enamel processing, thereby reducing the manufacturing cost.

[0004] The above-mentioned layered heat storage water tank sends hot water from the water inlet pipe position at the lower end position of the inner container when storing hot water, and when the inner container is layered for heat storage, the high-temperature liquid will stay upwards and the low-temperature liquid will stay downwards, the high-temperature liquid will contact the low-temperature liquid originally located at the lower end in the inner container, and the heat of the high-temperature liquid will be absorbed by the low-temperature liquid, resulting in heat loss and poor effect of layered heat storage water. UTILITY MODEL CONTENTS

[0005] The utility model discloses a heat storage water tank with heat storage and release function, which continuously discharges the stored liquid directly into the upper end of the inner container through the water inlet pipe, continuously extracts the low-temperature liquid previously stored in the inner container at the same time, stores the low-temperature liquid in the storage cavity, extracts the temporarily stored low-temperature liquid from the storage cavity when discharging the high-temperature liquid from the upper end of the inner container, supplements the low-temperature liquid to the lower end of the inner container, continuously locates the warm liquid at the uppermost end of the inner container, continuously extracts the warm liquid by the first water outlet pipe, reduces the contact frequency between the low-temperature liquid and the high-temperature liquid, and solves the problems in the above-mentioned background technology.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: A heat storage water tank with heat storage and release function, including inner bag, the inside upper end of inner bag extends to the side of outer part of inner bag and is provided with water inlet pipe, the storage frame with storage cavity is provided around the outer part of inner bag, the side of outer part of storage frame towards water inlet pipe is reserved with reservation cavity, the storage cavity extends fourth reflux pipe towards reservation cavity, the side of lower end of inner bag towards fourth reflux pipe is provided with first reflux pipe, and second pump is arranged between first reflux pipe and fourth reflux pipe, one side between second pump and fourth reflux pipe is provided with third reflux pipe, one end of third reflux pipe is provided with first pump, and second reflux pipe is arranged between one end of first pump and lower end of inner bag.

[0007] Preferably, the first reflux pipe is sealingly connected between the second pump, the second reflux pipe, the first pump and the third reflux pipe are sequentially sealingly connected.

[0008] Preferably, the fourth reflux pipe, the second pump and the third reflux pipe are sealingly connected through a three-way valve.

[0009] Preferably, the lower end of the water inlet pipe is provided with a first water outlet pipe.

[0010] Preferably, the lower end of the water inlet pipe is provided with a first water outlet pipe.

[0011] Preferably, the inner bag and the storage frame are provided with three support frames around, and the support frames are sequentially welded and fixed with the inner bag and the storage frame.

[0012] Preferably, the lower end of the storage frame is provided with three gaskets around, and the gaskets are fixedly connected with the storage frame through bolts.

[0013] Preferably, the upper end of the outer part of the inner bag is provided with an exhaust port.

[0014] Compared with the prior art, the utility model has the beneficial effects as follows:

[0015] In this utility model's power grid peak-shaving system, when the hotter liquid is stored inside the inner tank, the inner tank can be pre-filled with a large amount of cryogenic liquid. The hotter liquid can be sent into the upper part of the inner tank through the inlet pipe, while the cryogenic liquid can be discharged through the second outlet pipe or transferred through the first return pipe and drawn by the second pump. This allows the cryogenic liquid to be temporarily stored in the storage cavity inside the storage frame. Subsequently, the hotter liquid in the upper part of the inner tank can be discharged through the first outlet pipe at the upper position, while the liquid inside the storage cavity can be returned through the second return pipe. Inside the inner liner, the second outlet pipe, first return pipe, and second return pipe for extracting low-temperature liquids are located at the lower end of the inner liner, while the inlet pipe and first outlet pipe for extracting high-temperature liquids are located at the upper end of the inner liner. Direct extraction of high-temperature and low-temperature liquids based on their distribution locations can assist in stratified storage, preventing the discharge of high-temperature liquids from low-temperature locations and vice versa. On the other hand, the liquid temporarily stored in the storage chamber outside the inner liner can encapsulate the heat inside the inner liner, preventing heat loss and improving heat storage efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the liquid transport trajectory of this utility model;

[0018] Figure 3 This is a cross-sectional view of the internal structure of the storage cavity of this utility model.

[0019] In the diagram: 1. Inner liner; 2. Reserved cavity; 3. Inlet pipe; 4. First outlet pipe; 5. Vent; 6. Second outlet pipe; 7. First return pipe; 8. Second return pipe; 9. Third return pipe; 10. Fourth return pipe; 11. First pump; 12. Second pump; 13. Storage frame; 14. Storage cavity; 15. Support frame; 16. Gasket; 17. Three-way valve. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments.

[0021] like Figure 1 As shown, a hot water storage tank with heat storage and release function in this embodiment includes an inner tank 1. An inlet pipe 3 is provided on the upper part of the inner tank 1 extending to the outside of the inner tank 1. Hot water to be stored outside can be sent into the inner tank 1 through the inlet pipe 3. A first outlet pipe 4 is provided at the lower part of the outside of the inlet pipe 3. The first outlet pipe 4 can directly extract the stored heat from the upper part of the inner tank 1. The liquid stored inside the inner tank 1 can be extracted through the first outlet pipe 4.

[0022] Wherein, in order to fill the lower end of the inner container 1 with low temperature liquid, the high temperature liquid filled in the upper end of the inner container 1 is lifted by the low temperature liquid, so that the high temperature liquid can be continuously suspended and retained in the uppermost end of the inner container 1, so that the low temperature liquid can be directly extracted by the first water outlet pipe 4, and the water inlet pipe 3 can also store the high temperature liquid outside the inner container 1 in the uppermost end of the inner container 1, so that the high temperature liquid can be continuously retained in the uppermost end of the inner container 1, so that the liquid in the hot area can be continuously extracted when the grid needs heat during the peak shaving period, and the liquid in the low temperature position can be avoided to be extracted to cause insufficient heat;

[0023] In order to facilitate the adjustment of the storage amount of the low temperature liquid in the lowermost end of the inner container 1, the lower end of the inner container 1 extends to one side of the outer side of the inner container 1 and is provided with a second water outlet pipe 6, and when the hot liquid is sent into the inner container 1, the low temperature liquid in the inner container 1 can be directly discharged from the position of the second water outlet pipe 6;

[0024] In order to avoid the waste of resources caused by the surface low temperature liquid discharged from the second water outlet pipe 6, the outer side of the inner container 1 is provided with a storage frame 13, and the outer side of the storage frame 13 is provided with a reserved cavity 2 facing the water inlet pipe 3, so that the transmission of the water inlet pipe 3, the first water outlet pipe 4, the second water outlet pipe 6, the first return pipe 7, the second return pipe 8 and the third return pipe 9 is not affected, as shown in Figure 3 The inner side of the storage frame 13 is provided with a storage cavity 14 for storing liquid, the storage cavity 14 extends towards the reserved cavity 2 and is provided with a fourth return pipe 10, one side of the lower end of the inner container 1 extends towards the fourth return pipe 10 and is provided with a first return pipe 7, and the first return pipe 7 and the fourth return pipe 10 are provided with a second pump 12, so that the liquid reserved in the lower end of the inner container 1 can be actively extracted by the second pump 12, and the extracted liquid can be sent into the inner side of the storage cavity 14 from the fourth return pipe 10, and the liquid retained in the inner side of the storage cavity 14 can be wrapped around the inner container 1 to avoid heat loss and improve the heat preservation effect;

[0025] The first return pipe 7 and the second pump 12 are sealingly connected;

[0026] It is worth mentioning that in order to facilitate the return of the liquid stored in the inner side of the storage cavity 14 to the inner side of the inner container 1, one side between the second pump 12 and the fourth return pipe 10 is provided with a third return pipe 9, one end of the third return pipe 9 is provided with a first pump 11, and one end of the first pump 11 and the lower end of the inner side of the inner container 1 are provided with a second return pipe 8, so that the liquid stored in the inner side of the storage cavity 14 can be sequentially transmitted from the third return pipe 9 and the second return pipe 8 and then returned to the inner side of the inner container 1 through the connection of the first pump 11 and the third return pipe 9;

[0027] The second return pipe 8, the first pump 11 and the third return pipe 9 are sequentially sealingly connected;

[0028] In addition, in order to facilitate the adjustment of the liquid flow trajectory inside the fourth return pipe 10 and to adapt to the start and extraction of the first pump 11 and the second pump 12, as shown in the drawings, the fourth return pipe 10, the second pump 12 and the third return pipe 9 are sealedly connected through the three-way valve 17. The adjustment of the three-way valve 17 can facilitate the extraction of the second pump 12 and the first pump 11, and also facilitate the adjustment of the liquid transmission trajectory. It can make the liquid at the lower end inside the inner container 1 enter the storage cavity 14 from the first return pipe 7 and the fourth return pipe 10, and also make the liquid inside the storage cavity 14 return to the inner container 1 from the fourth return pipe 10, the third return pipe 9 and the second return pipe 8. Figure 2

[0029] In order to support the storage frame 13 and the inner container 1, three support frames 15 are arranged around the inner container 1 and the storage frame 13, and the support frames 15 are sequentially welded and fixed with the inner container 1 and the storage frame 13. The support of the support frame 15 can improve the support capacity of the equipment for a large amount of liquid.

[0030] Among them, in order to improve the anti-skid effect between the storage frame 13 and the placement position, three gaskets 16 are arranged around the lower end of the outer part of the storage frame 13, and the gaskets 16 are fixedly connected with the storage frame 13 through bolts. The gasket 16 can support the storage frame 13 and reduce the contact area between the equipment placement position and the storage frame 13.

[0031] In order to avoid the pressure inside the inner container 1 being too large when the liquid inside the inner container 1 is extracted and filled, an exhaust port 5 is arranged at the upper end of the outer part of the inner container 1. The pressure inside the inner container 1 during the adjustment of the liquid can be adjusted through the exhaust port 5.

[0032] ​Working principle: the inner container 1 is filled with low-temperature liquid in advance, when the device is used and the hot water is stored in layers, the high-temperature liquid is sent into the inner container 1 through the water inlet pipe 3, and the low-temperature liquid stored in the inner container 1 needs to be discharged, the low-temperature liquid can be rotated to be discharged outside the device through the second water outlet pipe 6, or the low-temperature liquid can be sent into the storage cavity 14 through the second pump 12 and the adjustment of the three-way valve 17, the low-temperature liquid is sent into the storage cavity 14 through the first return pipe 7, the three-way valve 17 and the fourth return pipe 10 in turn, the extraction amount of the low-temperature liquid is the same as the storage amount of the high-temperature liquid, so that the heat is accumulated at the upper end of the inner container 1, and the low-temperature liquid is accumulated at the lower end of the inner container 1, when the relatively hot liquid at the upper end of the inner container 1 is extracted for use, the relatively hot liquid stored at the upper end of the inner container 1 is directly extracted through the first water outlet pipe 4, and at the same time, the three-way valve 17 is adjusted, so that the first pump 11 can extract the low-temperature liquid in the storage cavity 14, and the low-temperature liquid is returned to the inner container 1 through the fourth return pipe 10, the three-way valve 17, the third return pipe 9 and the second return pipe 8 in turn, and the extraction and return transmission of the low-temperature liquid at the lower end of the inner container 1 to the inner container 1 can continuously make the high-temperature liquid located at the uppermost end of the inner container 1.

[0033] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0034] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application.

Claims

1. A hot water storage tank with heat storage and release functions, comprising an inner liner (1), characterized in that, An inlet pipe (3) is provided on the upper part of the inner liner (1) extending to the outside of the inner liner (1). A storage frame (13) with a storage cavity (14) is arranged around the outside of the inner liner (1). A reserved cavity (2) is reserved on the side of the storage frame (13) facing the inlet pipe (3). A fourth return pipe (10) extends from the storage cavity (14) toward the reserved cavity (2). A first return pipe (7) is provided on the side of the lower end of the inner liner (1) toward the fourth return pipe (10). A second pump (12) is provided between the first return pipe (7) and the fourth return pipe (10). A third return pipe (9) is provided on the side between the second pump (12) and the fourth return pipe (10). A first pump (11) is provided at one end of the third return pipe (9). A second return pipe (8) is provided between one end of the first pump (11) and the lower end of the inner liner (1).

2. A hot water storage tank with heat storage and release function according to claim 1, characterized in that, The first return pipe (7) is sealed to the second pump (12), and the second return pipe (8), the first pump (11) and the third return pipe (9) are sealed to each other in sequence.

3. A hot water storage tank with heat storage and release function according to claim 1, characterized in that, The fourth return pipe (10), the second pump (12) and the third return pipe (9) are sealed together by a three-way valve (17).

4. A hot water storage tank with heat storage and release function according to claim 1, characterized in that, The lower end of the inlet pipe (3) is provided with a first outlet pipe (4).

5. A hot water storage tank with heat storage and release function according to claim 1, characterized in that, A second water outlet pipe (6) is provided on the lower end of the inner liner (1) extending to the outside of the inner liner (1).

6. A hot water storage tank with heat storage and release function according to claim 5, characterized in that, Three support frames (15) are arranged around the inner liner (1) and the storage frame (13), and the support frames (15) are welded and fixed to the inner liner (1) and the storage frame (13) in sequence.

7. A hot water storage tank with heat storage and release function according to claim 6, characterized in that, Three gaskets (16) are arranged around the lower end of the outside of the storage frame (13), and the gaskets (16) are fixedly connected to the storage frame (13) by bolts.

8. A hot water storage tank with heat storage and release function according to claim 1, characterized in that, An exhaust port (5) is provided at the upper part of the outer side of the inner liner (1).

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