CN2132949Y

CN2132949Y - Heat supply unit of solar electrothermal water heater

Info

Publication number: CN2132949Y
Application number: CN92221311U
Authority: CN
Inventors: 程志华
Original assignee: GUANG AN APPLIED ENGINEERING T
Current assignee: GUANG AN APPLIED ENGINEERING T
Priority date: 1992-09-15
Filing date: 1992-09-15
Publication date: 1993-05-12
Anticipated expiration: 2002-09-15

Abstract

The utility model relates to an assembly device for a solar-energy heat-collecting and heat-supplying device and the heat-supplying device of an electric-heating water storage heater. The assembly device is provided with a small circulation loop which only uses the heat quantity of the solar energy and a big circulation loop which uses the solar energy and also uses an electric heater, and the assembly device is realized by that the circulation loop of the heating water is controlled and is changed by an electromagnetic valve group according to the temperature and the water level. The utility model has the advantages that the assembly device has the energy-saving function of the solar-energy heat-supplying device, also has the function of the electric heater which is free from the outer environmental influence, such as the weather, and has the heat-supplying function with constant temperature. The utility model is suitable for various situations with heating and supplying the hot water.

Description

Heat supply unit of solar electrothermal water heater

The utility model relates to the composite set of solar heat collector to supply heat device and electric heating water-storage heater heating plant.

Chinese patent 88213514.7 " wind-heated all-weather solar heat collector " and 92215304.3 " electrothermal heaters " disclose solar energy vacuum tube heat collector heating plant and electrothermal heater's hot-water supply respectively.But they all have limitation separately, the solar-heating device at night, cloudy day, rain, blow when situation such as snowing, the time that shines upon is few, the heat that is provided has influenced its normal heat supply with regard to corresponding minimizing; The electrothermal heater must need consume electric power unexpectedly, seem uneconomical, if both are combined, under the situation of solar-heating deficiency, come additional heat with electric heating, so just can satisfy the heat supply needs of various operating modes, simultaneously relative electrothermal heater, bottom line can be saved 1/3 power consumption.

The purpose of this utility model is a kind of solar energy vacuum tube heat collector heating plant heat that makes full use of of design, with the electrical heating water heater adjust, the efficient combined-type hot-water supply of complementary heating amount.

The purpose of this utility model is that the design following technical proposals realizes.

This programme is made up of solar energy vacuum tube heat collector, cyclic water tank and electric heat water tank, be provided with the magnetic valve group in cyclic water tank and the pipeline that electric heat water tank is connected, also be provided with the magnetic valve group in the cyclic water tank import water pipe, cyclic water tank and the electric heat water tank magnetic valve group that is respectively equipped with interlocking on the pipeline of solar energy vacuum tube heat collector of leading in parallel, make under the normal heat supply situation of solar energy vacuum tube heat collector, connect the systemic circulation loop of electric heat water tank to solar energy vacuum tube heat collector; Under the situation of solar energy vacuum tube heat collector heat supply deficiency, only connect the partial circulating loop of cyclic water tank, and replenish and adjust with electrical heating to solar energy vacuum tube heat collector, make output hot water reach design temperature; Both are that the switching by temperature control magnetic valve valve group realizes.

Accompanying drawing 1 is a structural representation of the present utility model, and 1 is solar energy vacuum tube heat collector among the figure, and 2 is cyclic water tank, and 3 is electric heat water tank, 4 is five electrode sensors, and 5 is temperature controller, and 6 is No. 1 valve group, and 7 is No. 2 valve groups, 8 is No. 3 valve groups, and 9 is No. 4 valve groups, and 10 is water pump, and 11 is electric heater.

Provide embodiment of the present utility model in conjunction with the accompanying drawings.

Solar energy vacuum tube heat collector 1 is made up of 132 groups of vacuum tubes, the capacity of cyclic water tank 2 is 2.7 tons, be provided with the temperature controller 5 of the band bound that temperature control uses, on, following two water inlets and two delivery ports, control by check valve, also have sewage draining exit and safety valve, the capacity of electric heat water tank 3 is 8 tons, be provided with five electrode sensors 4 of water level control usefulness, the pondage of the control water level of five utmost points is respectively the S1=2.5 ton, the S2=3 ton, the S3=4.5 ton, the S4=6 ton, the S5=7.5 ton, electric heater 11 is equipped with in the lower end, having water level and temperature to control it opens, close, valve group 6 is located at cyclic water tank to the pipeline of electrocaloric effect, is controlled by the water temperature of cyclic water tank and the water level of electric heat water tank, and valve group 7 is located at electric heat water tank to the pipeline of water pump 10, control by the cyclic water tank temperature, valve group 8 is located at the water inlet of cyclic water tank, and it and valve group 6 link (except that valve group 6 is opened when the cyclic water tank water temperature is higher than ceiling temperature), and valve group 9 is located at cyclic water tank to the pipeline of water pump, it and 7 interlockings of valve group, water pump 10 is located at the place ahead of solar energy vacuum tube heat collector 1, a cover job, and a cover is standby.Valve

group

6,7,8,9 is made up of check valve and magnetic valve respectively, is the maintenance of convenient electromagnetic valve, and the folding dress is respectively loaded onto a gate valve at two ends, is more convenient for using.No. 1 valve group 6 and No. 3 valve groups 8 are when the cyclic water tank temperature is lower than lower limit temperature, and when the electric heat water tank water level was lower than S2, magnetic valve was opened, when being higher than S3, and closed electromagnetic valve; When the cyclic water tank temperature was higher than lower limit temperature, when the electric heat water tank water level was lower than S4, magnetic valve was opened, closed electromagnetic valve when being higher than S5; When the cyclic water tank temperature was higher than ceiling temperature, No. 1 valve group 6 was opened, and No. 3 valve group 8 is failure to actuate.No. 2 valve groups 7 and No. 4

valve groups

9,7 open when the cyclic water tank temperature is higher than ceiling temperature, and 9 close, under the rest working conditions, 7 close, and 9 open, electric heater 11 automatic disconnection when water level is reduced to S1 is connected when the electric heat water tank temperature is lower than setting value, disconnects when being higher than set temperature value.The work operating mode of present embodiment is as follows:

1, when the solar energy vacuum tube heat collector operate as normal, heat supply is abundant, the temperature of cyclic water tank surpasses under the situation of ceiling temperature value,

valve group

6,7,8 is left at this moment, 9 close, and cold water enters cyclic water tank by water inlet pipe through valve group 8, because valve sets 9 is being closed, cold water just exports from the top, by valve group 6, enter electric heat water tank 3, by valve group 7, squeeze into solar energy vacuum tube heat collector 1 by water pump, heat, hot water is got back to cyclic water tank 2 through check valve, gate valve, again along former road, by the systemic circulation circuit cycle, has only the solar energy vacuum tube heat collector heat supply this moment.

2, when solar energy vacuum tube heat collector heat supply deficiency, the cyclic water tank temperature is lower than ceiling temperature, when being higher than lower limit temperature, at this moment, water level in the electric heat water tank should be lower than the position of S5, this moment, the

valve group

6,8,9 open, 7 close, cold water enters cyclic water tank by water inlet pipe through valve group 8, through valve group 9, squeeze into solar energy vacuum tube heat collector 1 again, heat by water pump, hot water is through check valve, gate valve is got back to cyclic water tank 2, and, enter electric heat water tank 3 by valve group 6 from top outlet, export after being heated to design temperature by electric heater 11, have only this moment the water in the cyclic water tank to enter the water-flow circuit of solar energy vacuum tube heat collector heating, a part of water in the electric heat water tank 3 is replenished by electrical heating.

3, when solar energy vacuum tube heat collector heat supply wretched insufficiency, when the cyclic water tank temperature is lower than lower limit temperature, could work when the water level of electric heat water tank only is lower than S3 at this moment, its working cycles is identical during with operating mode 2, because heating is based on electrical heating, need the suitably control water yield, could be controlled in the design temperature scope at the hot water of following supply of specified power.

The utility model had both had the saving energy of solar-heating device, and what have the electrothermal heater again is not subjected to external environment influence such as weather, can supply the advantage of the function of steady temperature hot water, and the energy consumption bottom line can save 1/3.Can satisfy the heating of buildings such as building, hotel, hospital, heat supply needs.

Claims

1, solar-electricity acting water heater heating plant, it is by solar energy vacuum tube heat collector, cyclic water tank, and electric heat water tank and corresponding pipeline are formed, and it is characterized in that being provided with magnetic valve group 6 in cyclic water tank and the pipeline that electric heat water tank is connected; Be provided with magnetic valve group 8 in the cyclic water tank water inlet pipeline; Cyclic water tank and the electric heat water tank magnetic valve group 9 and 7 that is respectively equipped with interlocking on the pipeline of solar energy vacuum tube heat collector of leading in parallel forms two closed circuits; Both switchings by temperature control valve group 9 and 7 realize.

2, according to the said solar-electricity water heating apparatus of claim 1, it is characterized in that being provided with in the cyclic water tank temperature controller of temperature control with the band bound, be provided with five electrode sensors of water level control usefulness in the electric heat water tank.

3, according to claim 1 or 2 said solar-electricity acting water heater heating plants, it is characterized in that said valve group 6 and 8 is to be controlled by the temperature of cyclic water tank and the water level of electric heat water tank, valve group 7 and 9 is controlled by the cyclic water tank temperature.

4,, it is characterized in that set valve group is made up of check valve and magnetic valve according to claim 1 or 3 said solar-electricity water heating apparatus; Or form by gate valve, check valve, magnetic valve, gate valve.