Combined water energy storage tank device

Abstract

The utility model relates to a combined type water energy storage tank device which comprises a plurality of tank bodies, an upper circulating pipe and a lower circulating pipe, the upper circulating pipe and the lower circulating pipe are arranged outside the tank bodies, an upper flange connector and a lower flange connector are arranged on the side walls of the tank bodies at different heights respectively, and the tank bodies are arranged in series. The lower flange interface of the tank body is connected with the upper flange interface of the next tank body through an inter-tank connecting pipe so as to form a series connection structure, and the tank body serving as the starting end of the series connection structure is connected with the upper circulating pipe through the upper flange interface of the tank body; and the other tank body serving as the tail end of the serial connection structure is connected with the lower circulating pipe through a lower flange interface of the tank body. According to the combined water energy storage tank device, the small closed water tanks are adopted, the size of the energy storage device is optimized in a series combination mode, the design and arrangement difficulty of the energy storage water tanks is lowered, the space utilization rate is increased, and the overall occupied area of the device is relatively small.

Description

TECHNICAL FIELD

[0001] The utility model relates to water storage technology field especially relates to a combined water storage tank device. BACKGROUND

[0002] With the progress of society and the improvement of living standards, the power consumption of air conditioners has increased significantly. During the day, the demand for electricity for production in enterprises is large, while the electricity load of residents at night is relatively small, which leads to the continuous expansion of the peak and valley difference of urban electricity consumption. As a result, cities face a situation of tight power supply during the peak electricity consumption period, while there is a phenomenon of power surplus during the off-peak period.

[0003] Compared with traditional air conditioning systems, water storage air conditioning exhibits significant social benefits in terms of relieving peak and valley differences, optimizing resource allocation, reducing power station investment, and protecting the ecological environment. In addition, owners who use water storage air conditioning can also obtain multiple economic benefits, including reducing power generation costs, reducing the installed capacity of refrigeration hosts, reducing related power distribution equipment investment, and saving a large amount of operating costs. In addition, in the case of power failure, water storage air conditioning can still provide cooling as an emergency cooling source.

[0004] Water storage air conditioning systems face several major challenges in practical applications. The system usually uses a closed energy storage water tank. However, existing vertical or horizontal water tanks have a large volume. Since energy rooms are often located in underground spaces and are limited by room area and height, combined with the fact that water storage devices usually have a large volume, it becomes difficult to install and operate large devices in limited underground space. This limitation significantly affects the promotion effect of water storage air conditioning systems. In addition, energy storage air conditioning systems generally use open energy storage tanks. To achieve independent circulation with the end air conditioning system, a corresponding heat exchange device and circulating water pump need to be configured between the energy storage tank and the end air conditioning system, which further increases the initial investment cost. Therefore, water storage air conditioning systems need to solve the problem of capacity and space adaptability in practical applications to maximize their potential economic benefits and technical advantages.

[0005] CN217900087U discloses a water storage air conditioning system that can adjust the flow of the pipe network circulating water pump and the system water supply temperature using the control system provided, so that the total cooling capacity and total heating capacity of the water storage system can be adjusted. However, this water storage air conditioning system includes multiple components such as energy supply equipment, water tanks, pipe network circulating water pumps, etc., and the overall floor area is relatively large, which is not suitable for small energy rooms with limited space. In addition, this system contains multiple parallel or series pipe network circulating water pumps, multiple valves, and a complex control system, which results in a relatively complex device operation process that requires professional personnel to operate and maintain.

[0006] In addition, on the one hand, due to the difference in understanding of the skilled in the art; on the other hand, because the applicant studied a large number of literatures and patents when making the utility model, but limited by the size and did not list all the details and contents in detail, but this is by no means that the utility model does not have the characteristics of these prior arts, on the contrary, the utility model has all the characteristics of the prior art, and the applicant reserves the right to add related prior art in the background art. Content of the utility model

[0007] In view of the deficiencies of the prior art, the application provides a combined water storage tank device, which comprises a plurality of tank bodies and upper and lower circulating pipes arranged outside the tank bodies. The tank bodies are respectively provided with upper and lower flange interfaces at different heights of the side walls. The tank bodies are arranged in series. The lower flange interface of a tank body is connected to the upper flange interface of the next tank body through an inter-tank connecting pipe, thereby forming a series structure. The tank body at the starting end of the series structure is connected to the upper circulating pipe through the upper circulating branch pipe connected to the upper flange interface. The other tank body at the end of the series structure is connected to the lower circulating pipe through the lower circulating branch pipe connected to the lower flange interface.

[0008] The combined water storage tank device can optimize the size of the energy storage device through series combination, reduce the design and arrangement difficulty of the energy storage water tank, improve the space utilization, and make the overall land occupation area relatively small. The series combination of the water storage tank can flexibly adjust the total capacity of the energy storage tank by simply increasing or decreasing the number of tank bodies according to actual needs. Water can enter the next water tank from the bottom or upper interface of the water tank and the connecting water pipe, and the water temperature in the tank body is vertically stratified by utilizing the density difference of water, so as to finally realize the energy storage and release of all tank bodies.

[0009] According to a preferred embodiment, the two ends of the lower circulating pipe and the two ends of the upper circulating pipe are connected to form a circulating water pipe network, and interfaces connected to the user end, heat source end or cold source end are extended at the two connection positions. The lower circulating pipe and the upper circulating pipe are connected end to end to form a closed circulating water pipe network, which ensures the continuous circulation of water flow in the system and avoids the water loss and pollution problems that may occur in an open system. In addition, such a design facilitates switching of the device to the cold source end in summer to provide refrigeration services for users, and switching to the heat source end in winter to provide heating services for users.

[0010] According to a preferred embodiment, different heights inside the tank body are configured with an upper circulating water assembly and a lower circulating water assembly, wherein the height of the upper circulating water assembly is higher than that of the lower circulating water assembly, the upper circulating water assembly comprises an upper connecting pipe capable of penetrating the side wall of the tank body, an upper flange interface is arranged at the port of the upper connecting pipe outside the tank body, and an upper water distributor with a water distribution port directed to the top of the tank body is connected to the port of the upper connecting pipe inside the tank body; the lower circulating water assembly comprises a lower connecting pipe capable of penetrating the side wall of the tank body, a lower flange interface is arranged at the port of the lower connecting pipe outside the tank body, and a lower water distributor with a water distribution port directed to the bottom of the tank body is connected to the port of the lower connecting pipe inside the tank body. The design of the upper and lower water distributors can effectively reduce the dead water area in the tank body, ensuring that all parts of the water can participate in circulation. This not only improves the utilization rate of water, but also reduces the possibility of scale and microbial breeding, prolonging the service life of the tank body. In addition, such a design can also achieve vertical stratification of water in the tank body by means of the density difference of different water temperatures, ensuring full energy storage and release of the tank body.

[0011] According to a preferred embodiment, the first valve of the lower circulating pipe is located between the connection point of the lower circulating branch pipe and the lower circulating pipe and the lower connection point of the lower circulating pipe and the upper circulating pipe; the second valve of the upper circulating pipe is located between the lower connection point of the upper circulating pipe and the lower circulating pipe and the connection point of the upper circulating branch pipe and the upper circulating pipe; the third valve of the upper circulating pipe is located between the connection point of the upper circulating branch pipe and the upper circulating pipe and the upper connection point of the upper circulating pipe and the lower circulating pipe; and the fourth valve of the lower circulating pipe is located between the upper connection point of the upper circulating pipe and the lower circulating pipe and the connection point of the lower circulating branch pipe and the lower circulating pipe. By configuring valves at key positions, the direction and flow of water flow can be accurately controlled, so that the device can be flexibly adjusted according to actual needs. Such a design not only allows isolation of specific pipe sections by closing certain valves for local maintenance or repair, but also prevents water flow from flowing in reverse, ensuring that water flows in the predetermined direction.

[0012] According to a preferred embodiment, when the two interfaces of the lower circulating pipe and the upper circulating pipe forming the circulating water pipe network are connected with the cold source circulating water inlet and the cold source circulating water outlet respectively, and the first valve and the third valve are opened and the second valve and the fourth valve are closed, the device switches to a state of executing the summer cold storage process.

[0013] When the two interfaces of the lower circulating pipe and the upper circulating pipe forming the circulating water pipe network are connected with the user circulating water inlet and the user circulating water outlet respectively, and the first valve and the third valve are opened and the second valve and the fourth valve are closed, the device switches to a state of executing the summer cold release process.

[0014] The two interfaces of the circulating water network formed by the lower circulation pipe and the upper circulation pipe are respectively connected to the heat source circulating water inlet and the heat source circulating water outlet, and when the second valve and the fourth valve are opened and the first valve and the third valve are closed, the device switches to the state of executing the winter heat storage process.

[0015] The two interfaces of the circulating water network formed by the lower circulation pipe and the upper circulation pipe are respectively connected to the user's circulating water inlet and the user's circulating water outlet, and when the second valve and the fourth valve are opened and the first valve and the third valve are closed, the device switches to the state of executing the winter heat release process.

[0016] This utility model utilizes closed, pressurized, series-connected combined water storage tanks as a carrier to optimize and improve the energy storage device of a water-storage air conditioning system. By adjusting the opening and closing of pipeline valves and the interface connection objects, the water flow direction of different small-sized energy storage tanks is adjusted. Four states can be achieved: cold storage, cold release, heat storage, and heat release, meeting the energy storage and release needs of different seasons.

[0017] According to a preferred embodiment, a plurality of supporting legs in contact with the floor of the machine room are arranged at the bottom of the tank body, a safety valve port and an exhaust port are arranged at the top of the tank body, a pressure gauge port and a mechanical thermometer port are arranged on the side wall of the tank body near the top end, a manhole is arranged on the side wall of the tank body near the bottom end, a sewage outlet is arranged at the bottom of the tank body, which can extend outwardly to form a sewage pipe connected to the drainage facility, and a plurality of remote thermometers are arranged at different heights on the inner wall of the tank body.

[0018] According to a preferred embodiment, the arrangement of the tanks can be set according to the actual plane size and / or layout space of the energy room, and the arrangement forms include straight, L-shaped, triangular, square and circular. The utility model uses closed pressure-bearing series combined water storage tanks as carriers, and its layout and installation method is flexible. According to the installation size and space of the existing energy station, the straight, L-shaped, triangular, square and circular arrangements can be selected, which reduces the difficulty of designing and installing the energy storage tanks and expands the application range of water storage air conditioning systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the tank body using a circular water distributor in the utility model;

[0020] Figure 2 This is a front view of the circular water distributor of the utility model;

[0021] Figure 3 This is a bottom view of the circular water distributor of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the tank body using a tubular water distributor in the present invention;

[0023] Figure 5 is a front view of the pipe water distributor of the utility model;

[0024] Figure 6 is a plan view of the pipe water distributor of the utility model;

[0025] Figure 7 is a summer cold storage flow process schematic diagram of the combined water storage tank device of the utility model;

[0026] Figure 8 is a summer cold release flow process schematic diagram of the combined water storage tank device of the utility model;

[0027] Figure 9 is a winter heat storage flow process schematic diagram of the combined water storage tank device of the utility model;

[0028] Figure 10 is a winter heat release flow process schematic diagram of the combined water storage tank device of the utility model;

[0029] Figure 11 is a one-dimensional arrangement schematic diagram of the combined water storage tank device of the utility model;

[0030] Figure 12 is an L-shaped arrangement schematic diagram of the combined water storage tank device of the utility model;

[0031] Figure 13 is a triangular arrangement schematic diagram of the combined water storage tank device of the utility model;

[0032] Figure 14 is a square arrangement schematic diagram of the combined water storage tank device of the utility model;

[0033] Figure 15 is a ring arrangement schematic diagram of the combined water storage tank device of the utility model.

[0034] List of reference signs

[0035] 100: Tank body; 110: Support legs; 120: Manhole; 130: Safety valve port; 140: Exhaust port; 150: Mechanical thermometer port; 151: Pressure gauge port; 152: Sewage outlet; 160: Upper circulating water assembly; 161: Upper flange interface; 162: Upper connecting pipe; 163: Upper water distributor; 170: Lower circulating water assembly; 171: Lower flange interface; 172: Lower connecting pipe; 173: Lower water distributor; 180: Remote thermometer; 190: Inter-tank connecting pipe; 200: Distributor Water inlet; 210: first valve; 220: second valve; 230: third valve; 240: fourth valve; 310: cold source circulating water inlet; 320: cold source circulating water outlet; 410: user circulating water outlet; 420: user circulating water inlet; 510: heat source circulating water inlet; 520: heat source circulating water outlet; 610: upper circulating pipe; 611: upper circulating branch pipe; 620: lower circulating pipe; 621: lower circulating branch pipe; 630: upper connection point; 640: lower connection point. DETAILED DESCRIPTION

[0036] The present invention will be described in detail below with reference to the accompanying drawings.

[0037] Example 1

[0038] This embodiment relates to a combined water storage tank device, such as Figure 7 As shown, the device includes multiple tanks 100 for storing cold source water or hot source water. The device also includes inter-tank connecting pipes 190, upper circulation pipes 610, and lower circulation pipes 620. The inter-tank connecting pipes 190 are used to form a connecting channel between different tanks 100, while the upper circulation pipes 610 and lower circulation pipes 620 form a circulating water pipe network outside the tanks 100, thereby establishing a passage between the tanks 100 and the user end (or the heat source end or the cold source end).

[0039] Preferably, combined Figure 1The upper circulating water assembly 160 is arranged at a higher level than the lower circulating water assembly 170 inside the tank body 100. The upper circulating water assembly 160 includes an upper connecting pipe 162 which can pass through the sidewall of the tank body 100. The upper connecting pipe 162 is provided with an upper flange interface 161 at its port outside the tank body 100, so as to be connected with other pipelines. Inside the tank body 100, the port of the upper connecting pipe 162 is welded with an upwardly bent elbow, and the opening of the elbow is connected with an upper water distributor 163 in an upward direction, so that the water distribution port 200 of the upper water distributor 163 is directed towards the top of the tank body 100. The lower circulating water assembly 170 includes a lower connecting pipe 172 which can pass through the sidewall of the tank body 100. The lower connecting pipe 172 is arranged opposite to the upper connecting pipe 162 along the circumferential direction of the tank body 100, and they are respectively located on the two sides of the tank body 100 in the radial direction, so that their projections on the horizontal center line of the tank body 100 are approximately 180 degrees apart. The lower connecting pipe 172 is provided with a lower flange interface 171 at its port outside the tank body 100, so as to be connected with other pipelines. Inside the tank body 100, the port of the lower connecting pipe 172 is welded with a downwardly bent elbow, and the opening of the elbow is connected with a lower water distributor 173 in a downward direction, so that the water distribution port 200 of the lower water distributor 173 is directed towards the bottom of the tank body 100.

[0040] Preferably, as shown in Figure 7 , a plurality of tank bodies 100 can be arranged in sequence to form a series structure. In a series structure composed of three tank bodies 100, the lower flange interface 171 of the starting tank body 100 (such as the leftmost tank body 100 in Figure 7 ) is connected with the upper flange interface 161 of the next tank body 100 (such as the middle tank body 100 in Figure 7 ) through an inter-tank connecting pipe 190. In combination Figure 1 , the lower flange interface 171 of the middle tank body 100 is connected with the upper flange interface 161 of the tank body 100 at the end of the series structure (such as the rightmost tank body 100 in Figure 7 ) through another inter-tank connecting pipe 190. In this way, the water storage in the starting tank body 100 can flow smoothly to the tank body 100 at the end, and vice versa. It should be noted that, according to this series structure, the number of tank bodies 100 forming the series structure can exceed three, as long as the design requirements of the number of energy storage tanks for the energy room are met.

[0041] Preferably, as shown in Figure 1 , Figure 7As shown, the tank body 100 is externally provided with an upper circulation pipe 610 and a lower circulation pipe 620, and the two pipes form a ring-shaped circulation water pipe network in a head-to-tail manner. At the two head-to-tail connection points of the ring-shaped pipe network, interfaces connected with user ends (or heat source ends, cold source ends) are respectively extended. The upper flange interface 161 of the starting tank body 100 is connected to the upper circulation pipe 610 through the upper circulation branch pipe 611, and the lower flange interface 171 of the terminal tank body 100 is connected to the lower circulation pipe 620 through the lower circulation branch pipe 621. Near the two connection points of the upper circulation pipe 610 and the lower circulation pipe 620, a valve for controlling the opening and closing of the pipe is arranged on each circulation pipe. Specifically, the first valve 210 arranged on the lower circulation pipe 620 is located between the connection point of the lower circulation branch pipe 621 and the lower circulation pipe 620 and the lower connection point 640 of the lower circulation pipe 620 and the upper circulation pipe 610; the second valve 220 arranged on the upper circulation pipe 610 is located between the lower connection point 640 of the upper circulation pipe 610 and the lower circulation pipe 620 and the connection point of the upper circulation branch pipe 611 and the upper circulation pipe 610; the third valve 230 arranged on the upper circulation pipe 610 is located between the connection point of the upper circulation branch pipe 611 and the upper circulation pipe 610 and the upper connection point 630 of the upper circulation pipe 610 and the lower circulation pipe 620; and the fourth valve 240 arranged on the lower circulation pipe 620 is located between the upper connection point 630 of the upper circulation pipe 610 and the lower circulation pipe 620 and the connection point of the lower circulation branch pipe 621 and the lower circulation pipe 620.

[0042] Embodiment 2

[0043] This embodiment is a further supplement to the foregoing embodiments, and the repeated contents will not be described again.

[0044] Preferably, the combined water storage tank device of the utility model can store or supply cold source (for example, low-temperature cold water) or heat source (high-temperature hot water) for users in summer and winter, which is realized by changing the objects (i.e. cold source end, heat source end or user end) connected through the interface and opening the position of the valve. In the water storage system, the user end can refer to a place or equipment that needs cold source or heat source, such as air conditioner, floor heating, etc.; the cold source end refers to a place that provides cold source, i.e. equipment or system that generates low-temperature cold water, such as refrigeration unit, etc.; and the heat source end refers to a place that provides heat source, i.e. equipment or system that generates high-temperature hot water, such as electric boiler, heat pump unit, etc.

[0045] Specifically, Figure 7 As shown is a flowchart of the combined water storage tank device of the utility model applied to cold storage in summer, and the arrow in the figure indicates the flow direction of water in the circulation pipe. Combined with the above description of the combined water storage tank device of the utility model, the working principle of the combined water storage tank device of the utility model applied to cold storage in summer is as follows. Figure 1 At this time, the upper circulation pipe 610 and the lower connection pipe 172 can store cold water in the starting tank body 100 Figure 7The water inlet 310 of the cold source cycle water is extended from a connection point of the leftmost tank 100 and is connected to the cold source end. The water outlet 320 of the cold source cycle water is extended from a connection point of the rightmost tank 100 and is also connected to the cold source end. Figure 7 The water outlet 320 of the cold source cycle water is extended from a connection point of the rightmost tank 100 and is also connected to the cold source end. In this working mode, the first valve 210 of the lower cycle pipe 620 is opened and the fourth valve 240 is closed; the second valve 220 of the upper cycle pipe 610 is closed and the third valve 230 is opened.

[0046] In combination with the above-mentioned Figure 1 and Figure 7 , the low-temperature cold water of the cold source end flows through the water outlet 320 of the cold source cycle water to enter the annular cycle water pipe network formed by the upper cycle pipe 610 and the lower cycle pipe 620. Under the blocking effect of the closed second valve 220 and fourth valve 240 and the guiding effect of the opened first valve 210, the low-temperature cold water flows through the first valve 210 and then enters the lower cycle branch pipe 621. Under the guidance of the lower connection pipe 172 of the end tank 100 connected to the lower cycle branch pipe 621, the low-temperature cold water flows through the elbow at the end of the lower connection pipe 172, flows out from the water distribution port 200 of the lower water distributor 173 in the form of maintaining the downward flow direction, and completes the update of the original warm water (i.e. the water with a higher temperature than the low-temperature cold water) at the bottom of the end tank 100. At the same time, due to the stratification effect caused by the temperature difference, the original warm water in the end tank 100 will flow into the water distribution port 200 of the upper water distributor 163, flow through the upper connection pipe 162 connected to the elbow, and then enter the lower connection pipe 172 of the intermediate tank 100 through the inter-tank connection pipe 190. Similarly, similar liquid flow processes exist between the intermediate tank 100 and the starting tank 100. As the low-temperature cold water is continuously injected, the combined water storage tank device of the present application will complete the filling of the low-temperature cold water in the end tank 100, the intermediate tank 100 and the starting tank 100, and continuously drive the original warm water to enter the upper cycle branch pipe 611 through the upper connection pipe 162 of the starting tank 100. Under the blocking effect of the closed second valve 220 and fourth valve 240 and the guiding effect of the opened third valve 230, the original warm water enters the annular cycle water pipe network formed by the upper cycle pipe 610 and the lower cycle pipe 620, and finally returns to the cold source end through the water inlet 310 of the cold source cycle water. In this way, all the water storage tanks complete the storage of the low-temperature cold water of the cold source end, and finally realize the summer cold storage process.

[0047] Embodiment 3

[0048] This embodiment is a further supplement to the foregoing embodiments, and the repeated contents will not be described again.

[0049] After completing the summer cold storage process, the combined water energy storage tank device of the present invention can be switched to a state of executing the summer cooling process by changing the object connected to the interface to the user end.

[0050] Specifically, Figure 8 The figure shows a schematic diagram of the process of applying the combined water storage tank device of the present invention to cooling in summer. The arrows in the figure indicate the flow direction of water in the circulation pipe. Figure 1 At this time, the upper circulation pipe 610 and the lower connecting pipe 172 can be close to the starting tank 100 ( Figure 8 A user circulating water outlet 410 connected to the user end is extended from a connection point of the leftmost tank 100) and is connected to the user end near the end tank 100 ( Figure 8 A user circulating water inlet 420, also connected to the user end, extends from a connection point on the rightmost tank 100. In this operating mode, the first valve 210 of the lower circulation pipe 620 is open and the fourth valve 240 is closed; the second valve 220 of the upper circulation pipe 610 is closed and the third valve 230 is open.

[0051] Combine Figure 1 and Figure 8 The warm water at the user end flows through the user circulating water outlet 410 and enters the annular circulating water network formed by the upper circulating pipe 610 and the lower circulating pipe 620. Under the blocking effect of the closed second valve 220 and the fourth valve 240 and the guiding effect of the open third valve 230, the warm water flows through the third valve 230 and enters the upper circulating branch pipe 611. The warm water is in the starting tank 100 ( Figure 8 Under the guidance of the upper connecting pipe 162 of the leftmost tank body 100), the water flows through the elbow at the end of the upper connecting pipe 162 and flows out from the water distribution port 200 of the upper water distributor 163 in the form of maintaining an upward flow direction. At the same time, due to the stratification effect caused by the water temperature difference, the original low-temperature cold water in the starting tank body 100 will flow into the water distribution port 200 of the lower water distributor 173, and flow through the lower connecting pipe 172 with an elbow at the end connected to it, and then enter the middle tank body 100 ( Figure 8 The upper connecting pipe 162 of the middle tank body 100) is connected to the middle tank body 100. Similarly, the middle tank body 100 and the end tank body 100 ( Figure 8A similar liquid flow process also exists between the tank bodies 100 on the far right of the tank body 100). As the warm water from the user end is continuously injected, the combined water energy storage tank device of the utility model will continue to drive the original low-temperature cold water in the tank into the lower circulation branch pipe 621 through the lower connecting pipe 172 of the terminal tank body 100. Under the blocking effect of the closed second valve 220 and the fourth valve 240 and the guiding effect of the opened first valve 210, the original low-temperature cold water enters the annular circulating water network formed by the upper circulation pipe 610 and the lower circulation pipe 620, and finally flows back to the user end through the user circulating water inlet 420. In this way, all the low-temperature cold water stored in the energy storage tank is transferred to the user end, and the summer cooling process is finally realized.

[0052] Example 4

[0053] This embodiment is a further supplement to the above embodiments, and repeated contents will not be repeated here.

[0054] In winter, the combined water energy storage tank device of the present invention can be switched to a state of executing a winter heat storage process by changing the object connected to the interface to a heat source end and switching the opening and closing states of the valve.

[0055] Specifically, Figure 9 The figure shows a schematic diagram of the process of applying the combined water storage tank device of the present invention to heat storage in winter. The arrows in the figure indicate the flow direction of water in the circulation pipe. Figure 1 At this time, the upper circulation pipe 610 and the lower connecting pipe 172 can be close to the starting tank 100 ( Figure 9 A heat source circulating water inlet 510 connected to the heat source end is extended from a connection point of the leftmost tank 100) and is connected to the heat source end. Figure 9 A heat source circulating water outlet 520, also connected to the heat source, extends from a connection point on the rightmost tank 100. In this operating mode, the first valve 210 of the lower circulation pipe 620 is closed and the fourth valve 240 is open; the second valve 220 of the upper circulation pipe 610 is open and the third valve 230 is closed.

[0056] Combine Figure 1 and Figure 9 The high-temperature hot water at the heat source end flows through the heat source circulating water outlet 520 and enters the annular circulating water network formed by the upper circulating pipe 610 and the lower circulating pipe 620. Under the blocking effect of the closed first valve 210 and the third valve 230 and the guiding effect of the opened second valve 220, the high-temperature hot water flows through the second valve 220 and enters the upper circulating branch pipe 611. The high-temperature hot water is stored in the starting tank 100 ( Figure 9Under the guidance of the upper connecting pipe 162 of the middle left tank 100, the water flows out from the water distribution port 200 of the upper water distributor 163 in the form of maintaining the upward flow direction after the elbow at the end of the upper connecting pipe 162. At the same time, due to the stratification effect caused by the temperature difference, the original warm water in the starting tank 100 will flow into the water distribution port 200 of the lower water distributor 173, and then flow through the lower connecting pipe 172 connected with the elbow at the end, and then enter the middle tank 100 through the inter-tank connecting pipe 190. Figure 9 The upper connecting pipe 162 of the middle tank 100. In the same way, the middle tank 100 and the end tank 100 Figure 9 The upper connecting pipe 162 of the middle tank 100. In the same way, the middle tank 100 and the end tank 100 With the continuous injection of high-temperature hot water at the heat source end, the combined water storage tank device of the utility model will continuously drive the original warm water in the tank to enter the lower circulating branch pipe 621 through the lower connecting pipe 172 of the end tank 100. Under the blocking action of the closed first valve 210 and the third valve 230 and the guiding action of the open fourth valve 240, the original warm water enters the annular circulating water pipe network formed by the upper circulating pipe 610 and the lower circulating pipe 620, and finally returns to the heat source end through the heat source circulating water inlet 510. In this way, all the storage water completes the storage of high-temperature hot water at the heat source end, and finally realizes the winter heat storage process.

[0057] Example 5

[0058] This embodiment is a further supplement to the foregoing embodiments, and the repeated contents will not be described again.

[0059] After completing the winter heat storage process, the combined water storage tank device of the utility model can be switched to the state of performing the winter heat release process by changing the object connected by the interface to the user end.

[0060] Specifically, Figure 10 The flowchart shows the application of the combined water storage tank device of the utility model in the winter heat release process, and the arrows in the figure indicate the flow direction of the water in the circulating pipe. In combination with Figure 1 At this time, the upper circulating pipe 610 and the lower connecting pipe 172 can extend the user circulating water outlet 410 connected with the user end at a connection point close to the starting tank 100 Figure 10 The upper circulating pipe 610 and the lower connecting pipe 172 can extend the user circulating water outlet 410 connected with the user end at a connection point close to the starting tank 100 Figure 10 The upper circulating pipe 610 and the lower connecting pipe 172 can extend the user circulating water outlet 410 connected with the user end at a connection point close to the starting tank 100

[0061] In combination withFigure 1 and Figure 8 The warm water at the user end flows through the user circulating water outlet 410 and enters the annular circulating water network formed by the upper circulating pipe 610 and the lower circulating pipe 620. Under the blocking effect of the closed first valve 210 and the third valve 230 and the guiding effect of the open fourth valve 240, the warm water flows through the fourth valve 240 and enters the lower circulating branch pipe 621. The warm water is stored in the terminal tank 100 ( Figure 10 Under the guidance of the lower connecting pipe 172 of the rightmost tank body 100), the hot water flows through the elbow at the end of the lower connecting pipe 172 and flows out from the water distribution port 200 of the lower water distributor 173 in the form of maintaining a downward flow direction. At the same time, due to the stratification effect caused by the water temperature difference, the original hot water in the end tank body 100 will flow into the water distribution port 200 of the upper water distributor 163, and flow through the upper connecting pipe 162 with an elbow at the end connected to it, and then enter the middle tank body 100 ( Figure 10 The lower connecting pipe 172 of the middle tank body 100) is connected to the middle tank body 100. Similarly, the middle tank body 100 and the starting tank body 100 ( Figure 10 A similar liquid flow process also exists between the tank bodies 100 on the far left in the figure. As warm water is continuously injected from the user end, the combined water energy storage tank device of the utility model will continue to drive the original hot water in the tank through the upper connecting pipe 162 of the starting tank body 100 into the upper circulation branch pipe 611. Under the blocking effect of the closed first valve 210 and the third valve 230 and the guiding effect of the opened second valve 220, the original hot water enters the annular circulating water network formed by the upper circulation pipe 610 and the lower circulation pipe 620, and finally flows back to the user end through the user circulating water inlet 420. In this way, all the hot water stored in the energy storage tank is transferred to the user end, and the winter heat release process is finally realized.

[0062] Example 6

[0063] This embodiment is a further supplement to the above embodiments, and repeated contents will not be repeated here.

[0064] Preferably, if Figure 1As shown, the design of the tank body 100 in this embodiment is a closed pressure-bearing cylindrical vertical small tank, made of high-quality stainless steel or other corrosion-resistant materials to ensure its safety and durability under high temperature and high pressure conditions. The top and bottom ends of the small tank are provided with round arc plugs, which helps to evenly distribute internal and external pressure, reduce stress concentration, and improve the pressure-bearing capacity of the tank body 100. The volume of the tank body 100 can be personalized according to the plan size and height of the machine room, usually ranging from 500 liters to 5000 liters, and the specific volume should be considered according to the process requirements and space limitations, while ensuring compliance with relevant industry standards and specifications such as GB / T 150 to ensure safety and reliability.

[0065] Preferably, in order to provide stable support, the tank body 100 is preferably configured with three support legs 110, which are evenly distributed on the bottom of the tank body 100 and form an angle of 120° with each other, aiming to effectively disperse the load, enhance the overall stability, and ensure stable contact between the tank body 100 and the ground of the machine room. The side wall of the tank body 100 near the bottom end is configured with a manhole 120, which can be set at the bottom area of the side wall of the tank body 100, and is set according to the standard specification, with a diameter that meets (such as DN500) to facilitate the cleaning, maintenance and maintenance of the operating personnel, and the manhole 120 is equipped with sealing devices to prevent leakage.

[0066] Preferably, as shown, Figure 1 The round arc plug at the top of the tank body 100 is configured with a safety valve port 130 and an exhaust port 140, the safety valve port 130 is set on the side of the top of the tank body 100, which is convenient for the installation and maintenance of the safety valve, and can automatically release gas in case of overpressure; the exhaust port 140 is set adjacent to the safety valve port 130 to facilitate gas discharge during the start-up and maintenance of the tank body 100, ensuring safe operation. In addition, a pressure gauge port 151 and a mechanical thermometer port 150 are provided on the side wall of the tank body 100, the pressure gauge port 151 is set in the upper middle part of the side wall of the tank body 100, which is convenient for the operator to observe the pressure; the mechanical thermometer port 150 is set below the pressure gauge port 151 to facilitate continuous monitoring of the temperature inside the tank body 100, helping the operator to adjust the process parameters in time.

[0067] Preferably, as shown, Figure 1As shown, in order to prevent and control the water accumulation in the tank body 100, the arc surface at the bottom of the tank body 100 is provided with a sewage outlet 152, which is preferably provided at the center of the bottom of the tank body 100 to ensure that the impurities or sediments accumulated inside the tank body 100 can be discharged in time. The sewage outlet 152 extends outwardly to form a sewage pipe and is connected to a drainage ditch or drainage well to avoid affecting the normal operation of the system due to water accumulation. The inner wall of the tank body 100 is provided with a plurality of remote thermometers 180 with remote transmission function, which are preferably provided at different heights in the tank body 100 (such as the bottom, middle and top) to monitor the temperature of the water at different heights in real time. This design helps to fully obtain the temperature distribution of the water.

[0068] Preferably, if Figures 1-3 As shown, the water distributor configured within the tank body 100 can be a circular water distributor. In this design, the water distributor is trumpet-shaped, with evenly distributed small cylindrical water distribution ports 200 on its disc surface. The upper portion of the water distributor is connected to the inlet and outlet water connection pipes via an elbow. The circular water distributor's water distribution ports 200 can reduce the outlet water flow rate, facilitating the natural stratification of the water in the tank due to density differences caused by different temperatures.

[0069] Preferably, if Figures 4-6 As shown, the water distributor configured in the tank body 100 can be a tubular water distributor. The tubular water distributor has a long cylindrical shape, with evenly distributed small cylindrical water distribution ports 200 on the side of the distributor. One side of the distributor is connected to the water inlet and outlet pipes. The uniform distribution of the water distribution ports 200 along a straight line can also reduce the outlet water flow rate, which facilitates the natural stratification of the water in the tank due to density differences caused by different temperatures.

[0070] Example 7

[0071] This embodiment is a further supplement to the above embodiments, and repeated contents will not be repeated here.

[0072] On the premise of meeting the pipe spacing and foundation positioning, the arrangement form of the tank body 100 can also be set according to the actual plane size and / or layout space of the energy room.

[0073] like Figure 11 As shown, when the layout space of the energy storage tank equipment in the existing energy station is rectangular, the tank body 100 can be arranged in a straight line according to the size of the station and the position of the drainage ditch.

[0074] like Figure 12 As shown, when the layout space of the energy storage tank equipment in the existing energy machine room is L-shaped, the tank body 100 can be arranged in an L-shaped edge-to-edge manner according to the station building size and the position of the drainage ditch.

[0075] like Figure 13As shown in the drawings, when the energy room energy storage tank equipment arrangement space is triangular, the tank body 100 can be arranged according to the station room size and the drain position.

[0076] As shown in the drawings, when the energy room energy storage tank equipment arrangement space is triangular, the tank body 100 can be arranged according to the station room size and the drain position. Figure 14

[0077] As shown in the drawings, when the energy room energy storage tank equipment arrangement space is triangular, the tank body 100 can be arranged according to the station room size and the drain position. Figure 15

[0078] In summary, the edge arrangement can maximize the use of the room space, and the rationality and flexibility of the tank body 100 installation arrangement are embodied.

[0079] It should be noted that the above specific embodiments are exemplary, and those skilled in the art can come up with various solutions under the inspiration of the disclosure of the present application, and these solutions also belong to the disclosed range of the present application and fall within the protection scope of the present application. Those skilled in the art should understand that the present application specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of the present application is defined by the claims and their equivalents. In the full text, the features guided by "preferably" are only optional ways, and should not be understood as necessarily set, therefore the applicant reserves the right to abandon or delete the relevant preferred features at any time.​​

Claims

1. A combined water storage tank device, comprising a plurality of tank bodies (100) and an upper circulation pipe (610) and a lower circulation pipe (620) arranged outside the tank bodies (100), characterized in that: The tank body (100) is respectively provided with an upper flange interface (161) and a lower flange interface (171) at different heights on its side wall. A plurality of the tank bodies (100) are arranged in series, and the lower flange interface (171) of the tank body (100) is connected to the upper flange interface (161) of the next tank body (100) through an inter-tank connecting pipe (190), thereby forming a series structure. The tank body (100) serving as the starting point of the series structure is connected to the upper circulation pipe (610) via an upper circulation branch pipe (611) connected to its upper flange interface (161); the other tank body (100) serving as the end of the series structure is connected to the lower circulation pipe (620) via a lower circulation branch pipe (621) connected to its lower flange interface (171).

2. The device according to claim 1, characterized in that The two ends of the lower circulation pipe (620) and the two ends of the upper circulation pipe (610) are respectively connected to form a circulating water network, and interfaces connected to the user end, the heat source end or the cold source end are extended from the two connections.

3. The device according to claim 2, characterized in that An upper circulating water assembly (160) and a lower circulating water assembly (170) are arranged at different heights inside the tank body (100), wherein the upper circulating water assembly (160) is higher than the lower circulating water assembly (170). The upper circulating water assembly (160) includes an upper connecting pipe (162) capable of passing through the side wall of the tank body (100), the upper flange interface (161) is configured at a port of the upper connecting pipe (162) outside the tank body (100), and the port of the upper connecting pipe (162) inside the tank body (100) is connected to an upper water distributor (163) with a water distribution port (200) facing the top of the tank body (100); The lower circulating water assembly (170) includes a lower connecting pipe (172) capable of passing through the side wall of the tank body (100), the lower flange interface (171) is configured at the port of the lower connecting pipe (172) outside the tank body (100), and the port of the lower connecting pipe (172) inside the tank body (100) is connected to a lower water distributor (173) with a water distribution port (200) facing the bottom of the tank body (100).

4. The device according to claim 3, characterized in that The first valve (210) configured for the lower circulation pipe (620) is located between the connection point between the lower circulation branch pipe (621) and the lower circulation pipe (620) and the lower connection point (640) between the lower circulation pipe (620) and the upper circulation pipe (610); The second valve (220) configured for the upper circulation pipe (610) is located between the lower connection point (640) of the upper circulation pipe (610) and the lower circulation pipe (620) and the connection point of the upper circulation branch pipe (611) and the upper circulation pipe (610); The third valve (230) configured for the upper circulation pipe (610) is located between the connection point between the upper circulation branch pipe (611) and the upper circulation pipe (610) and the upper connection point (630) between the upper circulation pipe (610) and the lower circulation pipe (620); The fourth valve (240) configured for the lower circulation pipe (620) is located between the upper connection point (630) of the upper circulation pipe (610) and the lower circulation pipe (620) and the connection point of the lower circulation branch pipe (621) and the lower circulation pipe (620).

5. The device according to claim 4, characterized in that Two interfaces of the circulating water network formed by the lower circulating pipe (620) and the upper circulating pipe (610) are respectively connected to the cold source circulating water inlet (310) and the cold source circulating water outlet (320), and when the first valve (210) and the third valve (230) are opened and the second valve (220) and the fourth valve (240) are closed, the device switches to a state of executing a summer cold storage process.

6. The device according to claim 4, characterized in that The two interfaces of the circulating water network formed by the lower circulating pipe (620) and the upper circulating pipe (610) are respectively connected to the user circulating water inlet (420) and the user circulating water outlet (410), and when the first valve (210) and the third valve (230) are opened and the second valve (220) and the fourth valve (240) are closed, the device switches to a state of executing a summer cooling process.

7. The device according to claim 4, characterized in that Two interfaces of the circulating water network formed by the lower circulating pipe (620) and the upper circulating pipe (610) are respectively connected to the heat source circulating water inlet (510) and the heat source circulating water outlet (520), and when the second valve (220) and the fourth valve (240) are opened and the first valve (210) and the third valve (230) are closed, the device switches to a state of executing a winter heat storage process.

8. The device according to claim 4, characterized in that The two interfaces of the circulating water network formed by the lower circulating pipe (620) and the upper circulating pipe (610) are respectively connected to the user circulating water inlet (420) and the user circulating water outlet (410), and when the second valve (220) and the fourth valve (240) are opened and the first valve (210) and the third valve (230) are closed, the device switches to a state of executing a winter heat release process.

9. The device according to claim 1, characterized in that The bottom of the tank body (100) is provided with a plurality of supporting legs (110) in contact with the floor of the machine room. The top of the tank body (100) is provided with a safety valve port (130) and an exhaust port (140). The side wall of the tank body (100) near the top is provided with a pressure gauge port (151) and a mechanical thermometer port (150). The side wall of the tank body (100) near the bottom is provided with a manhole (120). The bottom of the tank body (100) is provided with a sewage outlet (152) which can extend outward to form a sewage pipe connected to a drainage facility. The inner side wall of the tank body (100) is provided with a plurality of remote thermometers (180) at different heights.

10. The device according to claim 1, characterized in that The arrangement form of the tank body (100) can be set according to the actual plane size and / or layout space of the energy room, and the arrangement form includes a straight line, an L shape, a triangle, a square and a ring.

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