Horizontal energy storage tank provided with temperature balancing device

Abstract

The utility model discloses a horizontal energy storage tank provided with a temperature balancing device, which comprises two cold and hot water inlets and outlets, two flow equalizing plates, a temperature and pressure balancing plate, a checking and cleaning hole, an energy storage tank body and a protective layer positioned on the energy storage tank body, the two cold and hot water inlets and outlets are located in the two ends of the energy storage tank body, and the flow equalizing plate and the energy storage tank body are welded into a whole. The liquid storage tank is simple in structure, convenient to manufacture, capable of saving installation space and convenient to carry and install, aerosol and heat preservation materials are adopted for heat insulation and heat preservation, the influence of external heat on liquid in the tank is effectively reduced, the temperature in the tank is kept stable, the static pressure section and the flow equalizing plate are arranged at the end of the tank body, and it is effectively guaranteed that water flow in the tank body is uniform and the section water temperature is stable; a temperature and pressure balancing device is arranged in the tank body, so that high-temperature water and low-temperature water in the tank body can be layered along the water flow direction and cannot be mixed due to temperature difference and pressure change.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage equipment, in particular to a horizontal energy storage tank provided with a temperature balancing device. Background Art

[0002] In the refrigeration, heating and heat pump systems of HVAC, energy storage tanks are used to store cold or heat for subsequent use. Generally speaking, cold storage tanks can be vertical or horizontal. Vertical cold storage tanks have a higher storage capacity per unit volume, and are generally built at a higher height, requiring a larger installation space. Although horizontal cold storage tanks have a slightly lower storage capacity, they can save space, are easy to install and maintain, and can be used in some small projects. However, the existing horizontal cold storage tanks cannot achieve uniform horizontal stratification like vertical tanks in terms of temperature balance, and there is still room for improvement in achieving temperature balance in the horizontal flow of water. Utility Model Content

[0003] The utility model aims to solve the above technical problems and proposes a horizontal energy storage tank with a temperature equalizing device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A horizontal energy storage tank provided with a temperature equalizing device comprises a cold and hot water inlet and outlet, a flow equalizing plate, a temperature and pressure equalizing plate, an inspection and cleaning hole, an energy storage tank body, and a protective layer located on the energy storage tank body. The cold and hot water inlet and outlet and the flow equalizing plate are both two in number, and the two cold and hot water inlet and outlet are located at both ends of the energy storage tank body. The flow equalizing plate is welded to the energy storage tank body as a whole. A static pressure section is provided between the end of the energy storage tank body and the flow equalizing plates on both sides to maintain uniform distribution of water flow and temperature. The temperature and pressure equalizing plate is connected to the energy storage tank body through a track, and pressure equalizing holes are evenly distributed on the temperature and pressure equalizing plate.

[0006] Preferably, the flow equalizing plates are uniformly arranged with a diameter The equalizing holes ensure that the cold and hot water are evenly distributed horizontally through the equalizing holes after entering the static pressure section, keeping the water temperature in the horizontal direction of the energy storage tank uniform and relatively stable.

[0007] Preferably, a stainless steel corrosion-resistant rolling bearing is provided at the connection between the temperature and pressure equalizing plate and the track.

[0008] Preferably, the energy storage tank is made of corrosion-resistant steel plate, has a circular shape, and is installed horizontally. The length and diameter of the tank are designed according to the energy storage capacity and installation space requirements to facilitate transportation and installation.

[0009] Preferably, the protective layer includes an outer protective layer, a thermal insulation layer, a heat insulating layer and an energy storage tank body wall panel, the heat insulating layer is arranged outside the energy storage tank body wall panel, the thermal insulation layer is arranged outside the heat insulating layer, and the outer protective layer is arranged outside the heat insulating layer.

[0010] Preferably, the outer protective layer is a SUS304 stainless steel plate, the heat insulating layer is a 10 mm thick aerosol, and the thermal insulation layer is a 25 mm thick rubber-plastic or 50 mm thick rock wool insulation layer.

[0011] Preferably, the energy storage tank body is provided with an inspection and cleaning hole, through which the interior of the energy storage tank body can be cleaned.

[0012] Preferably, a drain valve is installed at the bottom of the energy storage tank body, and the drain valve is arranged opposite to the static pressure section, which can remove impurities entering the tank body. By reducing the flow rate, the static pressure section can filter impurities in the system. A DN100 drain valve is arranged at the bottom, and the drain valve port is arranged at the bottom of the flow equalizing plate, which is separated by a partition in the middle, so that liquid and impurities on both sides of the flow equalizing plate can be removed at the same time.

[0013] Preferably, the static pressure section is provided with a temperature sensor, which can be used to monitor the temperature of the liquid at both ends of the tank body. The type and position of the temperature sensor are designed according to specific needs to facilitate control and adjustment of the liquid temperature.

[0014] Preferably, the drain valve is arranged at the bottom of the flow equalizing plate and is separated in the middle by a partition plate, so that liquid and impurities on both sides of the flow equalizing plate can be discharged simultaneously.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model has a simple structure, is easy to manufacture, saves installation space, is easy to carry and install, adopts aerosol + thermal insulation materials for heat insulation, effectively reduces the influence of external heat on the liquid in the tank, and maintains the stability of the temperature in the tank. A static pressure section and a flow equalizing plate are arranged at the end of the tank body, which effectively ensures that the water flow in the tank body is uniform and the cross-sectional water temperature is stable. A temperature and pressure equalizing device is arranged inside the tank body, which can maintain the high and low temperature water layers in the tank body along the water flow direction, and will not be mixed due to temperature differences and pressure changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an external side view of the energy storage tank.

[0018] Figure 2 It is a side cross-sectional view of the energy storage tank.

[0019] Figure 3 It is a schematic diagram of the flow equalizing plate inside the energy storage tank.

[0020] Figure 4It is a temperature and pressure equalizing device that can move horizontally inside the energy storage tank.

[0021] Figure 5 It is the structure of the external thermal insulation layer of the energy storage tank.

[0022] In the figure: 1 hot and cold water inlet and outlet, 2 energy storage tank body, 201 outer protective layer, 202 thermal insulation layer, 203 thermal insulation layer, 204 energy storage tank body wall plate, 3 static pressure section, 4 flow equalizing plate, 401 flow equalizing hole, 5 temperature and pressure equalizing plate, 501 pressure equalizing hole, 502 rolling bearing, 503 track, 6 drain valve, 7 inspection and cleaning hole, 8 temperature sensor. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-Figure 5 A horizontal energy storage tank with a temperature balancing device includes a hot and cold water inlet and outlet 1, a flow equalizing plate 4, a temperature and pressure balancing plate 5, an inspection and cleaning hole 7, an energy storage tank body 2, and a protective layer located on the energy storage tank body 2. The protective layer includes an outer protective layer 201, a thermal insulation layer 202, a heat insulating layer 203, and an energy storage tank body wall plate 204. The heat insulating layer 203 is arranged outside the energy storage tank body wall plate 204, the heat insulating layer 202 is arranged outside the heat insulating layer 203, and the outer protective layer 201 is arranged outside the heat insulating layer 202. The outer protective layer 201 is SUS304 Stainless steel plate, the insulation layer 203 is 10mm thick aerosol, the insulation layer 202 is 25mm thick rubber plastic or 50mm thick rock wool insulation layer, the aerosol has good thermal insulation performance, and the combined use can reduce the insulation thickness and effectively reduce energy loss; first, do anti-corrosion treatment on the outside of the tank body, and bond a certain insulation layer 202 to fix the fixing frame, and evenly cover the aerosol on the outer surface of the energy storage tank body 2, and then cover the outside with flame-retardant B1 grade rubber plastic insulation board or A grade glass wool insulation layer, and use 0.4mm thick SUS304 stainless steel plate to set a protective layer outside the insulation layer;

[0025] Among them, the energy storage tank body 2 is provided with an inspection and cleaning hole 7, through which the inside of the energy storage tank body 2 can be cleaned; wherein, a drain valve 6 is installed at the bottom of the energy storage tank body 2, and the drain valve 6 is arranged opposite to the static pressure section 3, so as to exclude impurities entering the tank body. By reducing the flow rate, the static pressure section can filter the impurities in the system. A DN100 drain valve is arranged at the bottom, and the drain valve port is arranged at the bottom of the flow equalizing plate, and a partition is used to separate the middle, so that the liquid and impurities on both sides of the flow equalizing plate can be excluded at the same time; a temperature sensor is arranged at the static pressure section 3, which can be used to monitor the temperature of the liquid at both ends of the tank body. The type and position of the temperature sensor are designed according to specific needs to facilitate the control and adjustment of the liquid temperature. The drain valve 6 is arranged at the bottom of the flow equalizing plate 4, and a partition is used to separate the middle, so that the liquid and impurities on both sides of the flow equalizing plate can be excluded at the same time;

[0026] There are two hot and cold water inlets and outlets 1 and two flow equalizing plates 4. The two hot and cold water inlets and outlets 1 are located at both ends of the energy storage tank body 2. Water or other liquids can be introduced into the static pressure section of the cold storage tank body through the hot and cold water inlets and outlets 1. The energy storage tank body 2 is made of corrosion-resistant steel plate. The energy storage tank body 2 is circular in shape and installed horizontally. The length and diameter of the energy storage tank body 2 are designed according to the storage capacity and installation space requirements for easy transportation and installation. The energy storage tank body 2 must meet the design pressure requirements and is made of cold-rolled steel plate, with anti-corrosion paint sprayed inside;

[0027] The flow plate 4 is welded to the energy storage tank 2, and the flow plate 4 is evenly set with a diameter The equalizing holes 401 are used to keep the cold and hot water evenly distributed horizontally through the equalizing holes 401 after entering the static pressure section 3, so as to keep the water temperature of the energy storage tank 2 uniform in the horizontal direction. The number of the equalizing holes 401 is designed according to the system design flow rate, and the flow velocity of the equalizing holes is kept no more than 0.1m / s. The equalizing plate 4 is welded and connected to the energy storage tank 2. A certain distance must be maintained between the equalizing plate 4 and the end cover of the energy storage tank 2, which serves as the static pressure section 3 of the energy storage liquid.

[0028] The static pressure section 3 is between the end of the energy storage tank 2 and the equalizing plates 4 on both sides to maintain the uniform distribution of water flow and temperature; wherein, the hot and cold water inlet and outlet 1 and the temperature and pressure equalizing plate 5 can operate in both directions, and when the system releases energy, it can realize the switching between low temperature 4-9℃ or 5-10℃ cooling and high temperature 9-14℃ or 10-15℃ cooling, which can maximize the energy storage of the tank and improve the operating efficiency of the refrigerator;

[0029] The temperature and pressure equalizing plate 5 is connected to the energy storage tank body 2 through the track 503, and a stainless steel corrosion-resistant rolling bearing 502 is provided at the connection between the temperature and pressure equalizing plate 5 and the track 503; pressure equalizing holes 501 are evenly distributed on the temperature and pressure equalizing plate 5, and the number of the pressure equalizing holes 501 is designed according to the water hammer pressure that may be generated by the system, so as to keep the water backflow to a minimum while maintaining the pressure stable, and keep the temperature on both sides of the temperature and pressure equalizing device relatively hot; when the temperature equalizing plate 5 is storing energy, it moves slowly with the water flow, and keeps the temperature on both sides of the equalizing plate 5 vertically and evenly layered. The pressure equalizing holes 501 can equalize the pressure on both sides. When the system stops running, the pressure on both sides can be balanced to prevent the water of different temperatures in the front and back of the energy storage tank body 2 from mixing, thereby keeping the water temperature on both sides relatively uniform and stable.

[0030] The utility model uses the following embodiments:

[0031] Embodiment 1: This energy storage tank can be used to store cold energy in a refrigeration system. It utilizes the low electricity price at night for refrigeration and stores a minimum temperature of 4°C. It can release cold energy with different temperature differences as needed. At the same time, through the combination of multiple energy storage tank bodies 2, low-temperature cold water and high-temperature cold water can be supplied separately to meet the needs of different terminals. By increasing the temperature difference of the cooling supply, the storage capacity of the energy storage tank body 2 is increased to achieve the purpose of reducing investment and saving operating costs.

[0032] Example 2: This energy storage tank can be used to store heat in the heat pump system, and use the low-peak electricity at night for heating. Since the heat pump has a high efficiency, the COP is generally around 2.5. By using the low-peak electricity price, the operating costs can be effectively reduced, saving users the winter heating operating costs. At the same time, due to the use of the energy storage system, distributed heating is realized, and the system operation is more flexible and convenient.

[0033] Example 3: This energy storage tank can be used as an electric boiler to store heat. By using low-peak electricity at night for heating, it can effectively reduce operating costs and save users winter heating operating costs. At the same time, due to the use of an energy storage system, distributed heating is achieved, and the system operation is more flexible and convenient.

[0034] Example 4 This energy storage tank can be used to store cold energy in process cooling systems of industrial projects that require year-round cooling. The cold energy stored by using off-peak electricity prices can not only save operating costs, but can also be used as a backup cold source for process cooling. When the system is out of power, it can be used as a backup cold source to reduce the use and investment of backup generators, etc., and ensure that the system is safer and more reliable.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A horizontal energy storage tank equipped with a temperature equalization device, characterized in that: The invention comprises a hot and cold water inlet and outlet (1), a flow equalizing plate (4), a temperature and pressure equalizing plate (5), an inspection and cleaning hole (7), an energy storage tank body (2), and a protective layer located on the energy storage tank body (2). The hot and cold water inlet and outlet (1) and the flow equalizing plate (4) are both two in number. The two hot and cold water inlet and outlet (1) are located at both ends of the energy storage tank body (2). The flow equalizing plate (4) and the energy storage tank body (2) are welded together. A static pressure section (3) is provided between the end of the energy storage tank body (2) and the flow equalizing plates (4) on both sides to maintain uniform distribution of water flow and temperature. The temperature and pressure equalizing plate (5) is connected to the energy storage tank body (2) via a track (503). The temperature and pressure equalizing plate (5) is evenly distributed with pressure equalizing holes (501).

2. A horizontal energy storage tank equipped with a temperature equalization device according to claim 1, characterized in that: The flow equalizing plates (4) are evenly arranged with a diameter The flow balancing holes (401) ensure that the cold and hot water are evenly distributed horizontally through the flow balancing holes (401) after entering the static pressure section (3), thereby maintaining the water temperature of the energy storage tank body (2) uniform in the horizontal direction.

3. A horizontal energy storage tank provided with a temperature equalization device according to claim 1, characterized in that: A stainless steel corrosion-resistant rolling bearing (502) is provided at the connection between the temperature and pressure equalizing plate (5) and the track (503).

4. A horizontal energy storage tank equipped with a temperature equalization device according to claim 1, characterized in that: The energy storage tank body (2) is made of corrosion-resistant steel plate, is circular in shape, and is installed horizontally.

5. The horizontal energy storage tank provided with a temperature equalization device according to claim 1, characterized in that: The protective layer comprises an outer protective layer (201), a thermal insulation layer (202), a heat insulating layer (203), and an energy storage tank body wall plate (204); the heat insulating layer (203) is arranged outside the energy storage tank body wall plate (204); the thermal insulation layer (202) is arranged outside the heat insulating layer (203); and the outer protective layer (201) is arranged outside the heat insulating layer (202).

6. A horizontal energy storage tank provided with a temperature equalization device according to claim 5, characterized in that: The outer protective layer (201) is a SUS304 stainless steel plate, the heat insulating layer (203) is a 10 mm thick aerosol, and the thermal insulation layer (202) is a 25 mm thick rubber-plastic or 50 mm thick rock wool thermal insulation layer.

7. The horizontal energy storage tank provided with a temperature equalization device according to claim 1, characterized in that: The energy storage tank body (2) is provided with an inspection and cleaning hole (7), through which the interior of the energy storage tank body (2) can be cleaned.

8. The horizontal energy storage tank provided with a temperature equalization device according to claim 1, characterized in that: A drain valve (6) is installed at the bottom of the energy storage tank body (2); the drain valve (6) is arranged opposite to the static pressure section (3) and can remove impurities that enter the energy storage tank body (2).

9. The horizontal energy storage tank provided with a temperature equalization device according to claim 1, characterized in that: The static pressure section (3) is provided with a temperature sensor (8) which can be used to monitor the temperature of the liquid at both ends of the tank body.

10. The horizontal energy storage tank provided with a temperature equalization device according to claim 8, characterized in that: The drain valve (6) is arranged at the bottom of the flow balancing plate (4) and is separated in the middle by a partition plate, so that liquid and impurities on both sides of the flow balancing plate (4) can be discharged simultaneously.

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