Heat pump type water heater
A heat pump water heater and hot water technology, which is applied to fluid heaters, lighting and heating equipment, etc., can solve the problems of large installation space, increased usage costs, and increased electric energy, and achieve reduced installation space, improved utilization, and reduced heat dissipation Effect
Inactive Publication Date: 2009-09-16
谢勇
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Problems solved by technology
[0007] 1. The hot water utilization rate of the pressurized water tank is low: after the water temperature of the pressurized water tank reaches the set temperature, the heat pump water heater is in the shutdown state. When the hot water starts to be used, the hot water is output from the hot water supply pipe, and the cold water enters from the cold water supply pipe at the same time The pressurized water tank is mixed with hot water to make the water temperature of the pressurized water tank drop gradually. When the water temperature drops below the temperature required for use, it cannot continue to be used, but at this time the water temperature in the pressurized water tank is still higher than that of the cold water supply pipe. The temperature of the cold water is very high, and there is still a lot of heat, so that the hot water stored in the pressurized water tank cannot be fully utilized, and the utilization rate of the hot water is very low.
[0008] 2. The larger the pressurized water tank, the more heat dissipation, and the higher the cost of use: because the utilization rate of hot water in the pressurized water tank is low, in order to meet the use of hot water, the volume of the pressurized water tank is larger
When the hot water is not in use and is in storage, although the pressurized water tank has an insulation layer, heat loss is still inevitable, and the larger the area of the pressurized water tank in contact with the air, the more heat loss per unit time. The longer the heat preservation time is, the more power will be consumed, which will increase the cost of use
[0009] 3. The installation of the machine takes up a lot of space: the larger the volume of the pressurized water tank, the larger the installation space occupied, which is not conducive to the popularization of household use
Method used
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[0017] From figure 1 It can be seen that the present invention still includes a pressurized water tank 1, a water supply circuit main pipe 5, a heat exchanger 8, a hot water circuit main pipe 10, a hot water supply pipe 12, a cold water supply pipe 13, and also includes a water supply circuit branch pipe 3 and a regulating valve 7 , water supply circuit temperature sensor 2, hot water circuit temperature sensor 9, controller 11, wherein there are at least two branch pipes 3 of the water supply circuit. -1, middle water supply circuit branch pipe 3-2, upper water supply circuit branch pipe 3-3, these three water supply circuit branch pipes are respectively arranged in three different positions of the pressurized water tank 1 along the direction from the cold water supply end to the hot water supply end, And each branch pipe 3 of the water supply circuit is equipped with a valve 4 respectively, and the regulating valve 7 is installed on the main pipe 5 of the water supply circu...
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The invention discloses a heat pump type water heater, comprising a bearing water tank, a feed-water loop main pipe, a heat exchanger, a hot water loop main pipe and a hot water feed pipe; the upper edge of the bearing water tank is provided with the feed-water loop branch pipe toward at least two different positions along a cold water supplementing end to the direction of a hot water feed end; and each feed-water loop branch pipe is connected with the feed-water loop main pipe by a valve. When the warm water in the bearing water tank is lower than the required temperature for use, different feed-water loop branch pipe can be controlled to open; the warm water reaches the required temperature for use directly after being heated secondarily by the heat exchanger and can be used continuously. Therefore, the heat pump type water heater improves the utilization ratio of hot water, can supplement effective hot water in time when in use, thus being capable of reducing the volume of the bearing water tank, reducing heat dissipation when the hot water is stored, saving using cost, reducing the installation space of the heat pump type water heater and being more beneficial to popularization for household use.
Description
technical field [0001] The invention relates to a heat pump water heater which adopts a pressurized water tank to store hot water. Background technique [0002] Heat pump water heaters are designed using the working principle of heat pump technology. The schematic diagram of the existing heat pump water heaters is shown in image 3 As shown, including compressor, heat exchanger, throttling device, evaporator, pressurized water tank, water pump, main pipe of water supply circuit, main pipe of hot water circuit, cold water supply pipe, hot water supply pipe, and the work of heating water by the water heater before use The principle is as follows: [0003] The working principle of the heat pump system: the refrigerant is in image 3 circulated in a closed heat pump system shown at right. The high-temperature and high-pressure gas discharged from the compressor enters the heat exchanger to dissipate heat (exchange heat with water to heat up the water) and condenses into a mediu...
Claims
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Inventor 谢勇
Owner 谢勇