CN219829605U - A large water energy storage device - Google Patents

Abstract

The utility model relates to a large-scale water energy storage device. A large-scale water energy storage device designed by this utility model includes a tank bottom, a tank body and a filling top. The temperature range of the water storage is used to divide the inside of the tank into high temperature zone, medium temperature zone and low temperature zone from top to bottom. There are three water distributors inside the tank: high-temperature water distributor, medium-temperature water distributor and low-temperature water distributor, and there are corresponding water distributor entrances and exits. Two heat-insulating orifice plates are installed inside the tank. Located at the junction area of temperature stratification, water distributors and heat-insulating orifice plates are used to divide the water storage area inside the tank, so that water of three different temperatures can be stored inside the tank. At the same time, due to the use of heat-insulating orifice plates The thickness of the inclined temperature layer between different temperature layers of water storage is reduced, which improves the thermal insulation performance of the water storage device. It effectively realizes the functions of heat storage and cold storage, balances the energy load, and achieves the effect of energy saving.

Description

A large water energy storage device

Technical field

The utility model relates to the technical field of functional equipment, in particular to a large-scale water energy storage device.

Background technique

Energy storage technology refers to turning on the heat pump host to store part of the energy, and then releasing the stored energy during peak electricity price periods during the day to reduce system operating costs, or releasing the stored energy during peak load periods to reduce the installed capacity of the unit.

With the development of modern industry and the improvement of people's living standards. The application of central air conditioners is becoming more and more widespread, and its power consumption is also increasing. In some large and medium-sized cities, the power consumption of central air conditioners has accounted for more than 20% of their peak power consumption, which has increased the peak and valley load difference of the power system. The load factor of the power grid has dropped, and the power grid has to implement power cuts, which seriously restricts industrial and agricultural production and has a lot of impact on people's normal life. One of the effective ways to solve this problem is to apply energy storage technology to shift air-conditioning power consumption from the peak period during the day to the trough period at night, balancing the load of the urban power grid, and achieving the purpose of peak shifting and valley filling.

Considering the economy, the water energy storage system has great advantages not only in terms of energy saving but also in saving initial investment. It has a short payback period and can achieve energy storage and heat storage. The air conditioning system can use the pool to store energy/heat at night, and only needs to run the water pump during the day to transport the cold/heat to areas that need cooling/heating, thus saving electricity.

The types of cold storage include temperature stratification type, multi-pool type, diaphragm type or labyrinth and multi-pool baffle type. Practice has proved that compared with other types, the temperature stratification type (vertical flow type) is the simplest and most effective. Temperature stratified water energy storage takes advantage of the physical properties of water having different densities at different temperatures. It relies on the density difference to keep warm water and cold water separated and avoid the loss of cooling capacity caused by the mixing of cold water and warm water. The density of water is maximum when it is around 4°C. As the water temperature increases, the density gradually decreases. This physical property of water is used to store water with low temperature in the lower part of the pool, and water with high temperature in the upper part of the pool. . At present, the traditional temperature-stratified energy storage water tank has excessive temperature loss during the heat exchange process due to the large thickness of the heat value exchange layer. In view of this, a large water energy storage device was invented.

Utility model content

To this end, the technical problem to be solved by the present utility model is to overcome the problem of large temperature loss during the heat exchange process in the temperature-stratified energy storage water tank in the prior art due to the large thickness of the heat value exchange layer, as well as the existing temperature There is the problem of less water temperature that can be stored in stratified storage tanks.

In order to solve the above technical problems, the utility model provides a large-scale water energy storage device, including:

The main body of the water storage tank includes the tank bottom, tank body and roof. The temperature range of the water storage is used to divide the inside of the tank into high temperature zone, medium temperature zone and low temperature zone from top to bottom;

Water distributor, including:

The high-temperature water distributor is located parallel to the bottom of the tank and located in the upper part of the high-temperature zone inside the water storage tank;

The medium-temperature water distributor is located parallel to the bottom of the tank and located above the medium-temperature zone inside the water storage tank;

The low-temperature water distributor is located parallel to the bottom of the tank and located in the upper part of the low-temperature zone inside the water storage tank;

The entrance and exit of the high-temperature water distributor is located at the bottom of the tank, through the high-temperature insulated water pipe and the high-temperature cloth

Water connection;

The entrance and exit of the medium-temperature water distributor is located at the bottom of the tank and is connected to the high-temperature water distributor through a medium-temperature insulated water pipe;

The entrance and exit of the low-temperature water distributor is located at the bottom of the tank and is connected to the high-temperature water distributor through a low-temperature insulated water pipe;

Insulated orifice plates, including:

The upper thermal insulation orifice plate is located at the separation position between the high temperature zone and the medium temperature zone inside the tank, in the middle of the orifice plate

Distribute cavities with uniform pore sizes;

The lower insulating orifice plate is located at the position separating the medium temperature zone and the low temperature zone inside the tank, with holes of the same size distributed in the middle of the orifice plate;

The temperature sensor is arranged in a stepped manner from the bottom to the top of the tank.

Furthermore, it also includes a thermal insulation bracket, which is vertically installed on the outer wall of the tank.

Further, the tank body is cylindrical, the roof is arched, and the tank body and the roof are welded and connected through edge-wrapped angle steel.

Further, the tank also includes an overflow port, which is located at the bottom of the tank and is located on the same plane as the inlet and outlet of the water distributor.

Further, the tank also includes a material inlet and a material outlet. The material outlet is located near the bottom of the tank. The material inlet is located above the material outlet of the tank and close to the material outlet.

Further, the tank also includes a liquid level gauge port, which is divided into two, one is located at the lower part of the tank and the other is located at the upper part of the tank.

Further, the initiation also includes an air outlet, which is provided above the initiation.

Furthermore, the filling cap also includes an ultrasonic remote transmission liquid level gauge port, which is located above the filling cap.

Further, it includes a manhole, and there are two manholes, one of which is located near the bottom of the tank, and the other is located near the edge of the initiation head.

Further, the outer wall of the tank, the roof surface and the bottom of the tank are provided with an insulation layer. The insulation layer on the outer wall of the tank is supported by an insulation bracket and is attached to the outer wall of the tank.

The above technical solution of the present invention has the following advantages compared with the existing technology:

A large-scale water energy storage device described in the utility model adopts the structure of three water distributors inside the water energy storage tank body, which can selectively store water of three different temperatures, and is arranged in a stepped manner on the tank body. With a temperature sensor, the temperature distribution in the tank can be observed in real time. Two heat-insulating orifice plates are installed inside the tank to isolate water of different temperatures, reduce the thickness of the inclined temperature layer, and improve the overall thermal insulation performance of the water energy storage device. It effectively realizes the functions of heat storage and cold storage, balances the energy load, and achieves the effect of energy saving.

Description of the drawings

In order to make the content of the present utility model easier to understand clearly, the utility model will be further described in detail below based on specific embodiments of the utility model and in conjunction with the accompanying drawings, wherein

Figure 1 is a schematic diagram of the tank structure of the utility model;

Figure 2 is a schematic diagram of the water distributor inside the tank of the present invention;

Figure 3 is a schematic diagram of the vault structure of the present utility model;

Figure 4 is a schematic diagram of the thermal insulation bracket of the present utility model;

Figure 5 is a schematic diagram of the heat-insulating orifice plate of the present invention;

Description of the reference symbols in the manual: 1. Tank bottom; 2. Tank body; 3. Ladder, platform; 4. Wrapping angle; 5. Top filling; 6. Water distributor bracket; 7. Windproof ring; 8. Insulation bracket; 9 , material inlet; 10, material outlet; 11, spare hole; 12, air outlet; 13-1~2, liquid level gauge port; 14-1~92, temperature sensor port; 15, drain port; 16, overflow port ; 17. Ultrasonic remote transmission liquid level gauge port; 18-1~2, manhole; 19-1, low-temperature water inlet and outlet; 19-2, medium-temperature water inlet and outlet; 19-3, high-temperature water inlet and outlet; 20-1, high-temperature cloth Water dispenser; 20-2, medium temperature water distributor; 20-3, low temperature water distributor; 21, thermal insulation orifice plate; 22-1, high temperature insulation water pipe; 22-2, medium temperature insulation water pipe; 22-3, low temperature insulation water pipe.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and implement it, but the embodiments are not intended to limit the present utility model.

Referring to Figure 1, a large-scale water energy storage device of the present invention includes:

The main body of the device consists of the tank bottom 1, the tank body 2 and the top 5;

The tank body 2 is cylindrical, and is connected with the arched roof 5 by welding through the edge angle steel 4. The inside of the tank body is divided into a high temperature zone, a medium temperature zone and a low temperature zone according to the temperature range of the water storage.

As shown in Figure 2, there are three water distributors inside the tank, namely:

The high-temperature water distributor 20-1 is arranged at the upper part of the high-temperature zone inside the tank and is parallel to the tank bottom 1. The high-temperature water distributor 20-1 is connected to the high-temperature water inlet and outlet 19 through the high-temperature insulated water pipe 22-1. -3 connection, high-temperature water enters and exits from the high-temperature water inlet and outlet 19-3, enters the high-temperature water distributor 20-1 above the high-temperature zone in the tank through the high-temperature insulated water pipe 22-1, and is then sent by the water distribution port distributed below the water distributor into a can;

The medium temperature water distributor 20-2 is arranged at the upper part of the medium temperature zone inside the tank and is arranged parallel to the tank bottom 1. The medium temperature water distributor 20-2 is connected to the medium temperature water inlet and outlet 19 through the medium temperature insulated water pipe 22-2. -2 connection, the medium-temperature water enters and exits the medium-temperature water inlet and outlet 19-2, enters the medium-temperature water distributor 20-2 above the medium temperature zone in the tank through the medium-temperature insulated water pipe 22-2, and then is sent in through the water distribution ports distributed below the water distributor. inside the tank;

The low-temperature water distributor 20-3 is arranged at the upper part of the low-temperature zone inside the tank and is parallel to the tank bottom 1. The low-temperature water distributor 20-3 is connected to the low-temperature water inlet and outlet 19 through the low-temperature insulated water pipe 22-3. -1 connection, low-temperature water enters and exits from the low-temperature water inlet and outlet 19-1, enters the low-temperature water distributor 20-3 above the low-temperature zone in the tank through the low-temperature insulated water pipe 22-3, and is then sent by the water distribution ports distributed below the water distributor into the can.

The tank is also equipped with:

The overflow port 16 is placed on the same plane as the inlet and outlet of the water distributor, and the overflow water is discharged from the overflow port 16 through the overflow pipe in the tank;

Material inlet 9 and material outlet 10, the material outlet 10 is located near the bottom of the tank, and the material inlet 9 is located above the material outlet of the tank close to the material outlet 10;

Drainage port 15 is provided at the bottom of the tank and is used to drain the water inside the tank out of the tank;

There are two manholes 18-1~2. One manhole is provided near the bottom of the tank 2, and the other manhole is provided near the edge of the roof 5 and is used for repairing the water storage device, etc. In case of emergency, maintenance personnel can enter the tank through the manhole;

Liquid level gauge ports 13-1~2. The liquid level gauge ports are divided into two. One is located at the upper part of the tank bottom and the other is located at the lower part of the tank body. The liquid level gauge port can be used to install the liquid level gauge. When installing the liquid level gauge, Observe the water level in the tank in real time to facilitate maintenance personnel's inspection;

The windproof ring 7 is located around the outside of the tank to prevent the tank from deforming due to wind pressure;

Temperature sensors 14-1 to 92. A total of 92 temperature sensors 14-1 to 92 are arranged on the tank in a ladder shape to monitor the temperature of each layer in the tank in real time, making it easier for maintenance personnel to adjust the energy storage state and reduce heat and mass exchange. layer thickness;

As shown in Figure 5, the heat-insulating orifice plate 21 is divided into an upper heat-insulating orifice plate and a lower heat-insulating orifice plate, both of which are made of heat-insulating materials. There are holes with the same aperture size distributed in the middle of the orifice plate, which is convenient for high-temperature and medium-temperature zones. , for the circulation of water in low-temperature areas, the insulation orifice plates are set in the corresponding temperature range inside the tank according to customer needs. The use of heat-insulating orifice plates reduces the thickness of the inclined temperature layer, ensures the stable temperature of each temperature layer, and enhances the thermal insulation effect. It also increases the temperature range of the water storage device and improves the utilization rate of the equipment.

As shown in Figure 3, the initiation settings include:

The air outlet 12 is located above the roof 5 and is used for gas exchange between the inside of the tank and the outside of the tank. The thermal expansion and contraction of the gas inside the tank will cause damage to the tank structure;

The ultrasonic remote transmission liquid level gauge port 17 is located on the upper part of the roof and is used to install the ultrasonic liquid level gauge.

As shown in Figure 4, the insulation bracket 8 is vertically installed on the outer wall of the tank. The outer wall of the tank is provided with an insulation layer, which is made of high-efficiency foamed polyurethane insulation material. The insulation bracket 8 is used as a support and is installed on the outer wall of the tank. The roof 5 is also provided. There is an insulation layer, which is attached to the upper wall of the roof and is made of high-efficiency foamed polyurethane insulation material. The bottom 1 of the tank is made of foam glass insulation material. The insulation layer can effectively isolate the temperature environment inside the tank and outside the tank, so that the water stored inside the tank can achieve better insulation effects.

The working status of water energy storage device can be divided into the following types:

Cold storage state: When the water storage device is in the cold storage state, the tank is always filled with water. At this time, low-temperature water enters the device from the low-temperature water inlet and outlet 19-1, enters the water distributor below the tank through the insulated water pipe, and is then distributed The water distribution port under the water distributor is sent into the tank. Due to its own characteristics, cold water starts from the bottom of the device and gradually fills it up. The hot water inside the device is extracted from the device through the medium temperature water inlet and outlet 19-2. The temperature sensors 14-1 to 92 continuously monitor the internal conditions of the device during the cold storage process. After the internal temperature of the tank becomes constant, the cold storage process stops.

Cooling release state: When the water energy storage device is in the cooling state, low-temperature water is pumped out of the device from the low-temperature water inlet and outlet 19-1, and high-temperature water enters the water energy storage device through the medium-temperature water inlet and outlet 19-2, and enters the cloth above the tank through the insulated water pipe. In the water distributor, the water is sent into the tank through the water distribution port distributed under the water distributor. At this time, the hot water gathers above the insulating orifice plate 21 and enters the cold water area through the water flow channel of the insulating orifice plate 21. Due to the use of the insulating orifice plate, the thickness of the inclined temperature layer of the entire water energy storage device is reduced, increasing the Cold water utilization efficiency.

Heat storage state: When the water energy storage device is in the cooling state, low-temperature water is pumped out of the device from the low-temperature water inlet and outlet 19-1, and high-temperature water enters the water energy storage device through the medium-temperature water inlet and outlet 19-2, and enters the cloth above the tank through the insulated water pipe. In the water distributor, the water is sent into the tank through the water distribution port distributed under the water distributor. At this time, the hot water gathers above the insulating orifice plate 21 and enters the cold water area through the water flow channel of the insulating orifice plate. Due to the use of the insulating orifice plate 21, the thickness of the inclined temperature layer of the entire water energy storage device is reduced, increasing the Cold water utilization efficiency.

Heat release state: When the water energy storage device is in the heat release state, high-temperature water is pumped out of the device from the medium-temperature water inlet and outlet 19-2, and low-temperature water enters the water energy storage device from the low-temperature water inlet and outlet 19-1, and enters the cloth below the tank through the insulated water pipe. In the water distributor, the water is sent into the tank through the water distribution port distributed under the water distributor. At this time, the cold water gathers under the heat insulation orifice plate 21 and enters the medium temperature water zone through the water flow channel of the heat insulation orifice plate. The water in the medium temperature water zone further enters the high temperature water zone from the heat insulation orifice plate 21 above. In addition, when the medium temperature water When the zone water temperature reaches the applicable temperature, the device is pumped out from the high temperature water inlet and outlet 19-3. Due to the use of insulating orifice plates, the thickness of the inclined temperature layer of the entire water energy storage device is reduced, while the hot water utilization interval is optimized and the utilization efficiency of hot water is increased.

Obviously, the above-mentioned embodiments are only examples for clear explanation and are not intended to limit the implementation. For those of ordinary skill in the art, other changes or modifications may be made based on the above description. An exhaustive list of all implementations is neither necessary nor possible. The obvious changes or changes derived therefrom are still within the protection scope of the invention.

Claims (10)

1. A large-scale water energy storage device, characterized by: including: The main body of the water storage tank includes the tank bottom, tank body and roof. The temperature range of the water storage is used to divide the inside of the tank into high temperature zone, medium temperature zone and low temperature zone from top to bottom; Water distributor, including: The high-temperature water distributor is located parallel to the bottom of the tank and located in the upper part of the high-temperature zone inside the water storage tank; The medium-temperature water distributor is located parallel to the bottom of the tank and located above the medium-temperature zone inside the water storage tank; The low-temperature water distributor is located parallel to the bottom of the tank and located in the upper part of the low-temperature zone inside the water storage tank; The entrance and exit of the high-temperature water distributor is located at the bottom of the tank and is connected to the high-temperature water distributor through a high-temperature insulated water pipe; The entrance and exit of the medium-temperature water distributor is located at the bottom of the tank and is connected to the high-temperature water distributor through a medium-temperature insulated water pipe; The entrance and exit of the low-temperature water distributor is located at the bottom of the tank and is connected to the high-temperature water distributor through a low-temperature insulated water pipe; Insulated orifice plates, including: The upper heat-insulating orifice plate is located at the position separating the high-temperature zone and the medium-temperature zone inside the tank, with holes of the same size distributed in the middle of the orifice plate; The lower insulating orifice plate is located at the position separating the medium temperature zone and the low temperature zone inside the tank, with holes of the same size distributed in the middle of the orifice plate; The temperature sensor is arranged in a stepped manner from the bottom to the top of the tank. 2. A large-scale water energy storage device according to claim 1, characterized in that it also includes a heat preservation bracket, which is vertically installed on the outer wall of the tank. 3. A large-scale water energy storage device according to claim 1, characterized in that: the tank body is cylindrical, the roof is arched, and the tank body and the roof are welded and connected through edge-wrapped angle steel. 4. A large-scale water energy storage device according to claim 1, characterized in that: the tank further includes an overflow port, which is located at the bottom of the tank and is located on the same plane as the inlet and outlet of the water distributor. 5. A large-scale water energy storage device according to claim 1, characterized in that: the tank further includes a material inlet and a material outlet, the material outlet is located near the bottom of the tank, and the material inlet is located at the tank. Above the material outlet and close to the material outlet. 6. A large-scale water energy storage device according to claim 1, characterized in that: the tank further includes a liquid level gauge port, and the liquid level gauge port is divided into two, one is located at the lower part of the tank, and the other is Located on the upper part of the tank. 7. A large-scale water energy storage device according to claim 1, characterized in that: the filling cap further includes an air outlet, which is provided above the filling cap. 8. A large-scale water energy storage device according to claim 1, characterized in that: the filling roof further includes an ultrasonic remote transmission liquid level gauge port, which is located above the filling roof. 9. A large-scale water energy storage device according to claim 1, characterized in that it includes a manhole, and there are two manholes, one of which is located near the bottom of the tank, and the other is located near the edge of the top. Location. 10. A large-scale water energy storage device according to claim 1, characterized in that: the outer wall of the tank, the filling surface and the bottom of the tank are provided with an insulation layer, and the insulation layer on the outer wall of the tank is supported by an insulation bracket. Located on the outer wall of the tank.