JP7251840B2 - Cold storage heat storage type room air conditioner - Google Patents

Description

TECHNICAL FIELD The present invention relates to the technical fields of heating, air conditioning, and energy storage equipment, and more particularly to a cold storage heat storage type room air conditioner.

China is currently actively promoting "clean heating" technology, and with the management of the environment, the demand for fog removal is increasing, and non-renewable resources such as coal-fired, gas-fired, and oil-fired are used. Reduce or prohibit the adoption of heating methods or heating methods that pollute the environment, and the current and future heating policy is to adopt clean heating measures, where the Chinese government, as a technical measure, replaces coal-fired heating with The adoption of electric heating is being actively promoted. According to the current implementation of electric heating, it is not easy to implement effective and sustainable electric heating, and the main problems are as follows.

1. The total construction period of centralized electric heating system planning, design and construction is long, the investment per heating area is large, the investment recovery period is long, and the system operation and management cost is high.

2. The surface temperature of the existing distributed electric heat storage products is high, the cost is high, and the installation is not easy.

3. The existing decentralized direct power supply products use peak and flat time power, which results in high operating costs and cannot be used for grid load regulation.

None of the above three types of electric heating methods have a cooling function in summer.

4. At present, the use of air source heat pumps has become the main clean heating method. Such heating equipment can achieve clean heating in winter and cool in summer, but the operation cost is high and the power grid There is a problem that there is no ability to balance the

In summer, especially in some cities in southern China, the power consumption of air conditioning accounts for 30%-50% of the total power consumption of the whole society, which is the main load on the power grid and has a clear temporality. have.

In addition to the air conditioning load, other power loads also have a peak power load period during the daytime and a bottom power load period during the nighttime. It brings great difficulty to the balancing operation of the power grid and wastes social resources (need to build larger power plants or power grid load control equipment). In order to ease the balance problem of the power grid, the Chinese government has encouraged the use of electricity during off-peak hours and has set up electricity tariff policies for peak hours and trough hours.

In recent years, China's clean energy (wind power, solar power, hydro power, nuclear power, etc.) has continued to develop rapidly, which has exacerbated the problem of load balancing in China's power grid. A phenomenon occurs in which clean energy cannot enter the power grid and is discarded, so the consumption and acceptance of clean energy has become an important business in the energy industry.

The object of the present invention is to provide a cold storage heat storage type room air conditioner, which can solve the problem of clean heating in winter in cold regions, and has the ability to cool in summer. It also has the ability to store cold and heat when the electricity price is low, and cools and releases heat during peak power consumption. and can serve to reduce operating costs and, ultimately, to reduce clean energy waste.

The above technical objects of the present invention are achieved by the following technical solutions. A cold storage room air conditioner, comprising an energy storage air conditioner, a cold heat source device, and an air passage, the energy storage air conditioner comprising a container containing an energy storage medium, a container mounted in the container, and an energy storage medium. A coil heat exchanger exposed to a storage medium and an electric heating tube, both ends of the coil heat exchanger are connected to a cold heat source device, and an air passage is installed in the container and flows through the air passage. The air can exchange heat with the energy storage medium within the container.

By adopting the above technical solutions, the cold storage heat storage type air conditioner of the present application can enable the user to turn on the heating function of the cold heat source device in winter, and the coil heat of the indoor energy storage air conditioner can be The heat is transferred to the vessel using an exchanger to raise the temperature of the water in the vessel to a relatively high level (e.g., about 65°C, determined by the capacity of the cold heat source device) to store the heat while the energy storage medium The heat is transferred to the wall plate of the air channel, actively dissipating heat from the air channel into the room, the whole device operates during the period of low power consumption, so the heating operation cost can be significantly reduced, and the whole device When the is operated in extremely cold seasons, more heat must be stored in the container to meet the heat needs of the day, at which time the cold heat source device heats the container to a relatively high temperature. After that, the electric heating tube is turned on to further raise the water temperature to a higher temperature (eg about 95°C). In the summer, during times when electricity prices are low, the user turns on the cooling function of the cold source device and heats the coil heat exchange to the cooling working fluid until the energy storage medium in the vessel cools to zero or even freezes to ice. The temperature of the energy storage medium is lowered by passing through the vessel, and cold heat is actively released into the room from the air passage during cold storage. In such a way, the energy storage medium in the vessel can store more cold energy, which greatly reduces the operating time of the cooling system during peak daytime electricity consumption hours to balance the grid load. , saving considerable power costs for cooling operations. In addition, the use of water as an energy storage medium not only satisfies the requirements of sustainable development, but also does not cause performance degradation (longer service life) than other energy storage media, and has good heat transfer performance. , the temperature of the cold storage heat storage is appropriate (the temperature is close to the heating temperature, air conditioning temperature), and has a series of advantages such as low cost.

In one preferred example of the present invention, it may be further installed as follows. The container includes an inner housing, an outer housing, and a duct installed inside the inner housing and passing through the inner housing and the outer housing, one end of the duct being connected to the bottom of the container, and the other end of the container. Connected to the top, the inside of the duct forms an air passage for air to flow, and the energy storage medium and the coil heat exchanger are both installed inside the inner housing.

By adopting the above technical solution, during operation, the cooling or heating function of the cold source device is turned on, and the coil heat exchanger is used to transfer cold or heat to the container for heat exchange with the energy storage medium; After the cold or heat is transferred by the energy storage medium to the duct wall plate, it is pumped into the room from the top of the airway to either provide cold or provide heat.

In one preferred example of the present invention, it may be further installed as follows. A plurality of ducts passing through the inner housing and the outer housing are included.

By adopting the above technical solutions, the transportation efficiency of the heat source or cold source is improved.

In one preferred example of the present invention, it may be further installed as follows. The inner housing and the outer housing are fixedly connected at a position intersecting the duct to form an air heat insulating layer between the inner housing and the outer housing.

By adopting the above technical solutions, it is used to isolate the heat or cold inside the inner housing, avoiding the autonomous release of excessive heat or cold, and because of the air insulation layer, To avoid the danger of being easily burned due to the low temperature of the surface of the outer shell during heating and the high temperature of the outer shell of the current ``solid heat storage type electric heater''.

In one preferred example of the present invention, it may be further installed as follows. The container includes an inner housing, an outer housing, and a plurality of support rods fixedly connected therebetween, and an air passage for air flow is formed between the inner housing and the outer housing, Both the top and bottom of the outer housing are vent openings, and the energy storage medium and the coil heat exchanger are both installed inside the inner housing.

By adopting the above technical solution, during operation, the user or operator can start the fan through the integrated control panel to draw the air into the air passage, and the air entering the air passage will be discharged from the inner housing. After exchanging heat with the outer wall, it is sent into the room from the top end of the air passage for heating or cooling. Compared with the structure of the container of Example 1, the structure of the container of this example achieves the release of heat or cold by the air passage formed between the inner housing and the outer housing, and the duct inside the inner housing. , the overall structure is simplified, the production cost is reduced, and the container can be kept warm when the fan is turned off while the person is out of the room. Reduce heat dissipation.

In one preferred example of the present invention, it may be further installed as follows. A fan is attached below the air passage.

By adopting the above technical solution, a fan is installed to improve the flow velocity of airflow, thereby improving the efficiency of heating and cooling.

In one preferred example of the present invention, it may be further installed as follows. The air outlet of the fan is offset from the air inlet of the air passage.

By adopting the above technical solutions, it is possible to prevent the condensed water flowing down from the inside of the air passage from being blown away by the wind and being difficult to smoothly drop into the drain pan.

In one preferred example of the present invention, it may be further installed as follows. A drain pan is provided at a position above the fan at the bottom of the air passage, the drain pan is fixed to the container, the fan is fixed to the side of the drain pan opposite to the water filling side, and the bottom of the drain pan is a trap communicates with

By adopting the above technical solution, the condensed water that can be produced is collected and led to the outside through a trap to be discharged to avoid the condensed water falling on the ground or into the fan.

In one preferred example of the present invention, it may be further installed as follows. The outer wall of the outer housing is mounted with an integrated control panel, the inner wall of the inner housing is mounted with two water level sensors for high water level and low water level, and the water level sensors are electrically connected to the integrated control panel. be done.

By adopting the above technical solution, the water level in the container can be monitored in real time for water refilling.

In one preferred example of the present invention, it may be further installed as follows. A blast cap is provided on the top of the container, and ventilation holes are formed on four peripheral surfaces of the blast cap.

By adopting the above technical solutions, it is mainly used for airflow distribution.

In one preferred example of the present invention, it may be further installed as follows. The cold heat source device is an outdoor unit of an air conditioner.

In one preferred example of the present invention, it may be further installed as follows. A water pipe communicating with the inside is provided on one side of the container and at a position close to the bottom, and a ball valve is attached to the water pipe.

By adopting the above technical solution, the user or operator can drain or refill the container with water through the water pipe.

In one preferred example of the present invention, it may be further installed as follows. A water inlet is opened at the top of the container for replenishing the energy storage medium inside the container, and a cover plate is attached to the water inlet.

By adopting the above technical solution, users and workers can refill water through the water inlet, and by installing a cover plate to avoid foreign matter such as dust from entering the container from the water inlet , avoid polluting the water.

In one preferred example of the present invention, it may be further installed as follows. A pressure equalizing hole is formed in the cover plate.

By adopting the above technical solutions, a pressure equalizing hole is installed for communication with the outside to ensure the normal pressure state inside the inner housing, and after the energy storage medium is heated, the inner housing To avoid damage to the inner housing due to increase in internal pressure, and to avoid damage to the inner housing due to decrease in pressure inside the inner housing after the temperature of the energy storage medium drops.

In summary, the beneficial technical effects of the present invention are as follows.

1. The cold storage heat storage type air conditioner of the present application utilizes the coil heat exchanger with the heating and cooling function of the cold heat source device so that the energy storage medium transfers heat or cold to the wall plate of the air passage. and actively heats or cools the room from the air path, the whole device operates during the bottom period of power consumption, and utilizes the energy storage medium in the container to store more heat or cold. can be stored, thereby significantly reducing the amount of time the heating or cooling system operates during peak daytime electricity consumption hours to balance the grid load and provide substantial savings in electricity bills due to heating or cooling operation. . In addition, the use of water as an energy storage medium not only satisfies the requirements of social sustainable development, but also does not cause performance degradation (i.e., has a long service life) compared to other energy storage media. ), the heat transfer performance is good, the cold storage temperature is appropriate (the temperature is close to the heating temperature and air conditioning temperature, and the thermal energy utilization efficiency is high), and the cost is low.

2. The efficiency of heating and cooling is improved by installing fans to improve the speed of airflow.

3. The installation of the self-gravity valve can prevent the air from flowing in the air passage, reducing the convective heat transfer, thereby reducing the heat release of the wall plate of the container, so that the external temperature of the housing is high. It is advantageous to avoid the risk of burns due to overheating.

4. Install a drain pan to collect the condensate water produced during cooling to avoid falling directly into the ground or into the fan.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic structural diagram of the entire cold storage heat storage type air conditioner in Embodiment 1 of the present invention; 4 is a partial cross-sectional view embodying the internal structure of the container; FIG. FIG. 4 is a schematic diagram embodying the position and structure of the top water inlet of the container, the cover plate, and the pressure equalizing hole; 1 is a front view of an energy storage air conditioner; FIG. FIG. 4 is a schematic structural diagram embodying the position of the self-gravity valve; 1 is a schematic diagram of the structure of a self-gravity valve; FIG. FIG. 2 is a schematic structural diagram of an entire cold storage heat storage type air conditioner according to a second embodiment of the present invention; FIG. 4 is a schematic structural diagram embodying the connection relationship between the inner housing, the outer housing, and the support rod;

The present invention will be described in more detail below with reference to the drawings.

(Example 1)
Referring to FIG. 1, the cold storage heat storage type room air conditioner disclosed in the present invention includes an energy storage air conditioner 1, a cold heat source device 2, and an air passage 33, wherein the energy storage air conditioner 1 and cold heat It communicates with the source device 2 through an inflow pipe 21 of the cooling/heating pipe and an outflow pipe 22 of the cooling/heating pipe. A valve 23 is attached.

The energy storage air conditioner 1 includes a vessel 3 containing an energy storage medium and a coil heat exchanger 31 mounted within the vessel 3 and exposed to the energy storage medium, wherein air flowing in an air path 33 is directed to the vessel. below the coil heat exchanger 31 so as to be able to exchange heat with the energy storage medium in 3 and raise the temperature of the energy storage medium to the highest achievable heat storage temperature (e.g. about 95° C.) under normal pressure conditions. is provided with an electric heating tube 32 for further heating the energy storage medium, which may be water, which has the advantage of being cheap and easy to obtain.

The container 3 can be manufactured in a variety of different shapes to meet the demands of different mounting methods, and according to the overall air flow direction, the container 3 can be divided into two basic types: "vertical" and "horizontal". There can be a typical structural form. Vertical structure means that the air flow direction inside the container 3 is from bottom to top (it may be designed from top to bottom depending on some installation needs). . A horizontal structure means that the direction of air flow inside the container 3 is generally horizontal (from left to right or vice versa). In the present device it is recommended to adopt the configuration of the "vertical" container 3, ie the general flow direction of the air is from bottom to top.

When the heating function is activated, the cold heat source device 2 transports the medium with high temperature to the energy storage air conditioner 1 through the cooling heating line, and the medium heats the energy storage medium through the coil heat exchanger 31. , when the cooling function is activated, it conveys medium with low temperature to the energy storage air conditioner 1 via the cooling heating line, which medium cools the energy storage medium in the coil heat exchanger 31 . Since the container 3 of this device is vertical, that is, the air passage 33 is installed vertically, the "chimney effect" naturally generates air flow in the air passage 33, realizing passive heat or cold heat release. be done.

Referring to FIG. 2, more specifically, the container 3 adopts a two-layer structure design, with an inner housing 34, an outer housing 35, and an inner housing 34 and an outer housing 35, which are installed inside the inner housing 34 and the outer housing 34. a duct 36 passing through the housing 35, the inner housing 34 and the outer housing 35 being fixedly connected at intersections with the duct 36, the energy storage medium, the coil heat exchanger 31 and the electric heating tube 32 all It is installed inside the inner housing 34 . The ducts 36 can be square, circular, oval, flower-shaped or other irregular structures and are mainly used for discharging cold or heat of the energy storage medium. One end of the duct 36 is airtightly connected to the bottom of the container 3, the other end is airtightly connected to the top of the container 3, both ends of the duct 36 are flush with the surface of the container 3, and the inside of the duct 36 is forms an air passage 33 for air flow, and one or more ducts 36 may be installed according to needs. Alternatively, the cross-sectional area is determined by heat transfer performance calculations, and the design goal is to evenly distribute the duct 36 to the energy storage medium.

When the air flows through the airway 33, the airflow exchanges heat with the energy storage medium outside the airway 33 (inside the inner housing 34). The air flowing through the air passage 33 absorbs the heat of the energy storage medium and rises in temperature when the heating function is activated by absorbing the cold heat of the medium.

An air heat retaining layer 37 is filled between the inner housing 34 and the outer housing 35 for heat insulation, and the temperature of the outer surface of the container 3 can be adjusted by changing the thickness of the air heat retaining layer 37 during design. and while satisfying the requirements for the external burn prevention function during heat storage operation (the water temperature in the container 3 can reach a maximum of about 95 ° C), during cold storage operation (the lowest temperature in the box is about 0 ° C ) also meets the requirement for external condensation prevention.

1 and 3, the top of the container 3 (the top of the inner housing 34 and the outer housing 35) is provided with a water inlet for replenishing the energy storage medium inside the inner housing 34 to remove dust and the like. To avoid foreign matter from entering the inner housing 34 through the water inlet and contaminating the energy storage medium, a matching cover plate 38 is installed on the water inlet. The cover plate 38 has a pressure equalizing hole 381 for communication with the outside to ensure that the inside of the inner housing 34 is in a normal pressure state, and after the energy storage medium is heated, the inner housing 34 is opened. To avoid damage to the container 3 due to excessive internal pressure, and to avoid damage to the inner housing due to a decrease in internal pressure of the inner housing after the temperature of the energy storage medium drops. Since the container 3 operates under normal pressure, the strength required for the structure of the container 3 is low, and the material consumption is small, which is advantageous for cost reduction. A water pipe 39 communicating with the inside of the inner housing 34 is provided on one side of the container 3 and at a position near the bottom. Alternatively, if water is replenished by connecting to an external water source, and the distance from the water source of the container 3 is too far to connect the pipe, the user or operator may refill water through the water inlet, and each time through the water inlet. Inject water to the lowest water level.

An integrated control panel 40 is attached to the outer wall of one side of the outer housing 35, and the maintenance valve 23, the electric heating pipe 32, and the cold heat source device 2 are all connected to the integrated control panel 40, provided that the maintenance valve 23 Install a solenoid valve as Inside the inner housing 34, two water level sensors 41 for high water level and low water level are mounted, wired through the air insulation layer 37 and connected to the integrated control panel 40, for water replenishment. monitor the water level in real time.

Referring to FIG. 2, below the air passage 33, a fan 42 connected to the integrated control panel 40 is installed to increase the airflow velocity, thereby improving the efficiency of heating and cooling. As the fan 42, a type such as a cross-flow fan, a centrifugal fan, etc. can be selected, and air is introduced from the fan 42, absorbs heat or cold heat while passing through the air passage 33, and is then sent to the top of the air conditioner. Since condensed water is generated in the air passage 33 when the appliance is operated for cooling in the summer, a drain pan 43 for collecting the condensed water that can be generated is located at the bottom of the air passage 33 and above the fan 42 . to be installed. The drain pan 43 is fixed to the outer bottom wall of the outer housing 35, and a trap 44 connected to the drain pipe 39 is connected to the lower surface of the drain pan 43 to guide the condensed water to the outside for easy discharge. .

The fan 42 is attached to the side of the drain pan 43 facing away from the water filling side, and the air outlet of the fan 42 is displaced from the air inlet of the air passage 33. To prevent the condensed water flowing down from the inside of the air passage 33 being deviated from the dropping path and being blown away by the wind to be difficult to smoothly fall into the drain pan 43, and to prevent the water of the drain pan 43 from flowing out from the air blowing port of the fan 42. - 特許庁In order to prevent this, the height of the surrounding area blown by the fan 42 must be higher than the bottom surface of the drain pan 43 .

Referring to Figure 4, the top of the container 3 is provided with a blast cap 5 whose main function is distribution of the airflow. A plurality of ventilation holes are formed in the side plate around the blast cap 5, and they may be arranged according to the requirements of the blowing direction and aesthetics. By attaching the blast cap 5 to the top, the air outlet of the duct 36 positioned at the top of the duct 36 can be hidden to improve the appearance. The top of the blast cap 5 is generally planar, but it may of course be of other shapes. If it is manufactured in a flat shape, it is easy for users to place household items on the top, such as placing a water dish on the top. , to achieve indoor-level constant temperature and humidity function, save the cost of purchasing a humidifier, and can also plant aquatic plants in a water dish. In that sense, the space utilization rate of the air conditioner can be improved.

5 and 6, the outlet of the blast cap 5 is installed in a self-gravitational valve 6 that automatically opens and closes under wind action. The self-gravity valve 6 includes a pair of vertical plates 61 installed in parallel and perpendicular to each other, a plurality of fixed shafts 62 fixedly connected between the two vertical plates 61 at regular intervals, and each fixed shaft 62 and a wind direction adjusting plate 63 installed in the same length as the fixed shaft 62, the wind direction adjusting plate 63 is spliced in order from top to bottom, the wind direction adjusting plate 63 has an arch shape, The self-gravitational valve 6, which protrudes outward from the blast cap 5, is normally in a naturally suspended state and closes the outlet.

4 and 5, during operation, the airflow direction adjusting plates 63 open outward under the action of wind force, and the airflow enters the room through the gaps between the adjacent airflow direction adjusting plates 63 to realize heating or cooling. , the wind direction adjusting plate 63 is installed in an arch shape, which is advantageous for opening in a situation where the wind force is small. When the fan 42 stops working, the wind direction adjusting plate 63 automatically hangs down under the action of its own gravity to close the outlet, block the flow of air in the air passage 33, reduce convective heat transfer, That is, it reduces the heat or cold heat release of the container 3 to avoid the phenomenon that the container 3 excessively dissipates heat into the room and cools down, which may occur, which is advantageous for the energy-saving operation of the device.

Referring to FIG. 1, the above cold source device 2 may be different types of cold source device 2, the medium for transporting heat or cold may be the "refrigerant" of a compression cooling system, air source It may be water (cold water or hot water) provided by a cold/hot water unit of a heat pump, or may be other cold/heat source equipment. In the technical solution of the present application, it is recommended to adopt the outdoor unit of the room air conditioner as the cold heat source device 2, at this time, the inflow pipe 21 of the cooling and heating pipe is the corresponding refrigerant gas pipe, and the cooling and heating The outflow pipe of the conduit is the corresponding refrigerant liquid pipe. When the cold heat source device 2 employs an outdoor unit of a room air conditioner, the cold heat source device 2, the inflow pipe 21 of the cooling/heating pipeline, the outflow pipe of the cooling/heating pipeline, and the coil heat exchanger 31 are Compressive cooling (heating) system”. The following description assumes that the cold heat source device 2 is an outdoor unit of a room air conditioner.

Both ends of the coil heat exchanger 31 are communicated with the cold heat source device 2 via the inflow pipe 21 of the cooling/heating pipeline and the outflow pipe 22 of the cooling/heating pipeline, respectively, whereby the coil heat exchanger 31 and the cold heat source device 2 are connected. together form a system of "compressive cooling or heating" and when operating in cooling mode the heat exchanger is the evaporator of the cooling system and when operating in the heating mode the heat exchanger is the condensing of the cooling system as a vessel. After operating in cooling mode, when the water temperature drops to 0° C. and subsequently operating in cooling mode, the energy storage medium becomes ice. Since ice can store a large amount of "phase change latent heat", a small volume of energy storage medium can be used to store a large amount of cold heat, thereby effectively reducing the volume of cold storage heat storage air conditioners. can be done.

When operating in heating mode, the coil heat exchanger 31 is used as the "condenser" of the system, releasing heat from the refrigerant in the condenser to the energy storage medium, raising the temperature of the energy storage medium. If there is a policy of electricity tariff between peak time and bottom time, use the time when the electricity price is low to heat, and raise the water temperature as much as possible in the time when the electricity price is low, generally speaking, about 50-65 ℃ or higher, and during peak electricity tariff hours, the heating mode is deactivated and the thermal energy stored in the energy storage medium is used to supply heat, thus reducing the electricity bill for heating. Save effectively.

When operating in cooling mode, the coil heat exchanger 31 is used as the "evaporator" of the system, and the internal temperature of the evaporator is maintained until the energy storage medium is all ice or the end of the low electricity price period. The low coolant absorbs heat from the energy storage medium, reducing the temperature of the energy storage medium.

During periods of low electricity consumption or low electricity tariffs, the cooling system further reduces the temperature of the energy storage medium until the energy storage medium condenses into ice. In this way, the energy storage medium of vessel 3 can store more cold, which greatly reduces the amount of time that the compression cooling system operates during peak electricity consumption hours during the day, and balances the grid load. , saving considerable electricity costs for cooling operation.

The type of coil heat exchanger 31 of the present application is a "copper tube aluminum fin type" heat exchanger, and its structure is the same as the type of evaporator and condenser widely used in current air conditioning equipment. , the structure is also similar, the inside of the tube of the coil heat exchanger 31 is a passage through which the refrigerant operates, and the outside of the tube is water. In the specific implementation, it is mainly necessary to place the heat exchanger in the water properly and uniformly, and the main goal is to ensure that the energy storage medium in the container 3 becomes mostly ice within a predetermined time. It is to be.

Working principle: In winter, the user turns on the cold heat source device 2, the heating function of the heat pump is activated, and the coil heat exchanger 31 of the indoor energy storage air conditioner 1 is used to transfer heat to the container 3 , raises the temperature of the water in vessel 3 to a relatively high level (eg, about 65° C., determined by the capacity of cold heat source device 2). When the heat pump works, the whole device has a relatively high energy efficiency ratio, so a good energy saving effect can be achieved, and the whole device works during the period of low power consumption, which significantly reduces the heating operation cost. . When the whole system operates in the extreme cold season, more heat needs to be stored in the container 3 to meet the heat needs during the day, when the heat pump raises the temperature of the container 3 to a relatively high temperature, and then the electricity is supplied. The heating tube 32 is turned on to further raise the water temperature to a higher temperature (eg, about 95°C). In the summer, when electricity is cheap, the user turns on the outdoor unit of the heat pump air conditioner, the cooling function is activated, and the temperature of the water in the container 3 drops to zero, or even freezes into ice. The working fluid cools the water through the coil heat exchanger 31 of the indoor unit. In this way, the water in the vessel 3 is made to store relatively more cold energy, which greatly reduces the amount of time the refrigeration system operates during peak electricity consumption periods during the daytime, thus balancing the grid load. and save considerably on the electricity bill of cooling operation. When the temperature of the room is lowered, the user starts the fan 42 of the integrated control panel 40 to draw in the air in the room from the base and send it into the air passage 33 , and the air entering the air passage 33 flows through the outer wall of the container 3 . The temperature is lowered by heat exchange, and then the air is sent into the room from the outlet on the blast cap 5 to lower the temperature of the air in the room.

(Example 2)
7 and 8, the cold storage heat storage type room air conditioner disclosed by the present invention differs from the first embodiment in the structural design of the container 3. Specifically, the container 3 is an inner housing. 34, an outer housing 35, and a plurality of support rods 45 fixedly connected therebetween, forming an air passage 33 for air flow between the inner housing 34 and the outer housing 35, Both the top and bottom of the outer housing 35 are openings for ventilation, and the outer housing 35 can have a double wall structure similar to the air insulation layer 37 formed in the first embodiment. A fan 42 fixed to the support leg of the air conditioner is provided below the air passage 33, and the fan 42 is wired through the air passage 33 and connected to the integrated control panel 40 to extract air. It is used to exchange heat with the energy storage medium that is sent into the air passage 33 to heat or cool the room, thereby realizing indoor heating or cooling.

A room temperature sensor, connected to the integrated control panel 40 and used to detect the temperature in the room, is mounted at the intake position near the fan 42, and if the temperature in the room is lower or higher than the set temperature, the fan 42 is turned off. is activated and begins to blow air to enhance heat dissipation (when heating in winter) or cooling (when cooling in summer). If the fan 42 is used to enhance the heat dissipation and cooling function, the user's "behavioral energy saving" function can be easily realized, that is, in winter, when the user leaves the room, the fan 42 is turned off and the container is closed. 3 heat dissipation is greatly reduced, when people return to the room, the fan 42 is turned on, can quickly heat up, can quickly meet the temperature comfort requirements, in summer, in winter Similarly, when a person exits the room, the fan 42 is turned off to reduce cold release, and when the person returns to the room, the fan 42 is turned on to quickly cool the room.

A bowl-shaped drain pan 43 is provided above the fan 42. The edge of the drain pan 43 extends obliquely upward, completely surrounds the bottom of the inner housing 34, and drains condensed water on the outer wall of the air passage 33 during cooling. Used to collect and avoid falling directly to the ground. A vertical screw 46 is integrally connected within the drain pan 43, and the drain pan 43 is threadedly connected to the bottom of the inner housing 34 via the screw 46, and can be attached or detached by an operator as required, and the fan 42 is It is attached to the side of the drain pan 43 away from the screw 46 and can be removed together with the drain pan 43 for easy cleaning or maintenance. A trap 44 is connected to the lower surface of the drain pan 43 and may be connected to a drain pipe line to lead out and discharge condensed water to the outside.

In operation, a user or operator activates the fan 42 via the integrated control panel 40 to draw air into the air passage 33, which exchanges heat with the outer wall of the housing, and so on. It is sent into the room from the outlet of the blast cap 5 to heat or cool the room.

The cold storage heat storage type air conditioner of this embodiment realizes the release of heat or cold heat through the air passage 33 formed between the inner housing 34 and the outer housing 35, and does not require additional ducts 36. The overall structure is simplified, the production cost is reduced, and the container 3 can also be kept warm when the fan 42 is turned off while the person is out of the room, reducing the autonomous heat dissipation of the container 3.

The examples of this specific embodiment are all preferred embodiments of the present invention, but do not limit the protection scope of the present invention, for example, a "micro-passage" heat exchanger as said coil heat exchanger (instead of the copper tube aluminum fin heat exchangers employed in conventional air conditioners) is also a preferred embodiment. In addition, if the energy storage air conditioner is not connected to a cold heat source device and has no coil heat exchanger installed therein, it can form a "water storage electric heater" device, which is also suitable for cold regions. Suitable for good room level heating system. Therefore, any equivalent change made according to the structure, shape and principle of the present invention shall fall within the protection scope of the present invention.

1... Energy storage air conditioner, 2... Cold heat source device, 21... Inflow pipe of cooling/heating pipeline, 22... Outflow pipe of cooling/heating pipeline, 23... Maintenance valve, 3. .. container, 31... coil heat exchanger, 32... electric heating tube, 33... air passage, 34... inner housing, 35... outer housing, 36... duct, 37. ..Air insulation layer, 38...Lid plate, 381...Pressure equalizing hole, 39...Water pipe, 391...Ball valve, 40...Integrated control panel, 41...Water level sensor , 42... fan, 43... drain pan, 44... trap, 45... support rod, 46... screw, 5... blast cap, 6... self-gravity valve, 61. .. Upright plate, 62... fixed shaft, 63... wind direction adjusting plate.

Claims (4)

The energy storage air conditioner (1) comprises an energy storage air conditioner (1), a cold source device (2) and an air passage (33), the energy storage air conditioner (1) comprising a container (3) containing an energy storage medium and a container (3 ) and an electric heating tube (32) mounted in the energy storage medium, both ends of the coil heat exchanger (31) being connected to the cold heat source device ( 2), an air passage (33) is installed in said container (3), the air flowing in the air passage (33) can exchange heat with the energy storage medium in the container,
The container (3) comprises an inner housing (34), an outer housing (35), and a plurality of ducts ( 36), one end of the duct (36) is connected to the bottom of the container (3), the other end is connected to the top of the container (3), and the inside of the duct (36) is an air passage for air to flow. forming (33), the energy storage medium and the coil heat exchanger (31) are both installed inside the inner housing (34);
The inner housing (34) and the outer housing (35) intersect the duct (36) to form an air insulation layer (37) between the inner housing (34) and the outer housing (35). Fixed connection in position,
A fan (42) is attached below the air passage (33),
The blower port of the fan (42) is displaced from the air intake port of the air passage (33),
A drain pan (43) is provided at the bottom of the air passage (33) at a position above the fan (42), the drain pan (43) is fixed to the container (3), and the fan (42) is connected to the drain pan ( 43), the bottom of the drain pan (43) communicates with the trap (44), and the height of the air outlet of the fan (42) is the height of the drain pan (43). higher than the bottom
A water pipe (39) communicating with the inside is provided on one side of the container (3) at a position near the bottom, and a ball valve (391) is attached to the water pipe (39),
The top of the container (3) is provided with a water inlet for replenishing the energy storage medium inside the container (3), and the water inlet is fitted with a cover plate (38),
A cold storage heat storage type room air conditioner, wherein the cover plate (38) is provided with a pressure equalizing hole (381). The outer wall of the outer housing (35) is mounted with an integrated control panel (40), the inner wall of the inner housing (34) is mounted with two water level sensors (41) for high water level and low water level, and The room air-conditioning apparatus of cold storage heat storage type according to claim 1, characterized in that the water level sensor (41) is electrically connected to the integrated control panel (40). The cold storage heat storage type according to claim 1, characterized in that a blast cap (5) is provided at the top of the container (3), and ventilation holes are opened on four peripheral surfaces of the blast cap (5). room air conditioner. 2. The cold heat storage type room air conditioner according to claim 1 , wherein the cold heat source device (2) is an outdoor unit of an air conditioner.

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