JP2011257125A - Single medium pressure-bearing circulated layered heat-storage split solar water heater with glass heat collection pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that thermal efficiency of a present split wall-hung solar water heater is lower than that of a conventional compact water heater.SOLUTION: This single medium pressure-bearing circulated layered heat storage split solar water heater with a glass heat collection pipe is designed with a layered heat-storage tank, a water-injection type pressure-bearing circulated full-glass vacuum pipe heat collecting module, and a magnetic-control array contact explosion-proof pressure meter. The layered heat-storage tank is designed on the basis of multi-node model concept, and includes at least two pressure-bearing containers connected through a communication pipe, and having outer surfaces covered with heat insulating layers. Further by applying single water medium temperature difference type forced circulation, and combining multi-chamber layered heat storage pressure-bearing tank and the water injection type pressure-bearing circulated full-glass vacuum heat collection module, an intelligence control center achieves temperature difference-type heat collecting circulation, and hot water can be supplied to a user by pressing out the hot water by using pressure of a tap water pipeline.

Description

  TECHNICAL FIELD The present invention relates to a solar heat utilization technical field, and more specifically, to a glass heat collecting tube single medium pressure-receiving / circulating layer heat storage divided solar water heater.

  Most conventional solar water heaters are compact. The structural form is that the all-glass vacuum heat collection tube is directly inserted into the heat storage tank, and the cold water is from top to bottom and the hot water is A natural microcirculation from the top to the bottom is formed, and the temperature of the whole water is gradually raised to a predetermined temperature. Since the heat storage tank is of a single chamber (non-layered heat storage), the temperature difference at the inlet / outlet of the tank is small and the heat collection efficiency of the heat collection tube is lowered. On the other hand, most of the split wall-hanging solar water heaters employ U-type pipes or superconducting tube vacuum glass tube heat collectors. Its purpose is only to overcome the disadvantage that the vacuum glass tube heat collector cannot receive pressure and frost damage cannot be prevented. Since the heat transfer medium in the heat collection tube is air, the heat collection efficiency of the heat collector is reduced, and the U-shaped pipe or superheat conduction tube has a heat exchange efficiency due to the lack of heat exchange area in the connected collector tube. Since it is greatly reduced, the thermal efficiency of the current split wall-mounted solar water heater is 13% lower than the conventional compact water heater.

  The object of the present invention is to connect to a tap water pipe having a constant pressure, control the heat circulation by temperature difference, and bring the hot water in the high-efficiency layered heat storage tank to a high temperature by the water injection type pressure-reception circulation all-glass vacuum tube heat collection module. It is to provide a glass heat collecting tube single-medium pressure-receiving / circulating-layer heat storage / divided solar water heater that circulates and provides hot water to the user.

In order to achieve the above object, the present invention adopts the following technical solutions. A glass heat collecting tube single medium pressure-receiving / circulating layered heat storage solar heating water heater including a water supply check valve, a temperature sensor, a drainage check valve, and a solar heat collector, wherein the glass heat collecting tube single medium pressure-receiving / circulating layer heat storage component The solar water heater has a separate heat storage tank, explosion-proof pressure gauge, and circulation pump. The tap water pipe is connected to the cross connection pipe through the water supply check valve, and one end of the cross connection pipe is connected to the separate heat storage tank through the pipe. One end is connected to an explosion-proof pressure gauge, one end is connected to a solar heat collection module cold water medium inlet through a pipe through a solenoid valve and a heat circulation pump, and the solar heat collection module hot water medium outlet is a temperature sensor A ₁ , drainage Connected to another T-type connecting pipe via a check valve, one end of the T-type connecting pipe connected to the water supply end via a flow sensor, and one end connected to a separate heat storage tank via a pipe , Min thermal storage tank is fitted with a temperature sensor A ₂ in the connection end of the T-shaped connecting pipe.

  The solar heat collector is a water injection type pressure-receiving circulation glass vacuum tube heat collection module, and a heater band in the water injection type pressure reception circulation all glass vacuum tube heat collection module is connected to a cold water medium inlet of the water injection type circulation all glass vacuum tube heat collection module The heater band in the water injection type all-glass vacuum tube heat collecting module is extended by a pipe connected to the hot water medium outlet of the water injection type all-glass vacuum tube heat collecting module. Is done.

  The glass heat collecting tube single medium pressure-receiving circulation layer storage heat storage solar heating water heater includes an intelligent control center, and an explosion-proof pressure gauge, a solenoid valve, a circulation pump, a heater band and a flow sensor are connected to the intelligence control center by a circuit. The

  The explosion-proof pressure gauge is a magnetically controlled array contact explosion-proof pressure gauge.

  The divided heat storage tank includes at least two pressure receiving containers, and the pressure receiving containers are connected by a communication pipe and the outer surface is enclosed in a heat insulating layer.

  The working mechanism of the divided heat storage tank described in the present invention is as follows (concept of tank temperature dividing multi-node model).

  The basic idea of the multi-node model is to make the original heat storage tank into a number of heat storage tanks, one heat storage tank becomes one layer and one node, and after each node is completely mixed, it corresponds to one temperature However, the temperature of different nodes does not have to be the same. The higher the temperature, the lower the density, so the hot water is on the higher layer surface. In order to increase the heat collection efficiency of the solar heat collection system, the water supply temperature of the collector is made as low as possible, so it is set to the lowest point of the tank. Since the temperature of the hot water used is usually as high as possible, the hot water adoption point, that is, the connection point of the collector outlet is provided at the top of the tank. Tanks that employ the concept of split-layer heat storage can significantly improve the efficiency of the heat collector and increase the amount of heat collected by the heat collector, thereby reducing the consumption of auxiliary energy. The present invention is based on the concept of a split layer heat storage node and devised a split layer combination, and can be easily assembled even in buildings with complicated structures by constructing two types of assembly modes, vertical and horizontal. , Have the same heat storage effect.

  The operation system of the glass heat collecting tube single medium pressure-receiving / circulating layer heat storage / divided solar water heater according to the present invention is as follows.

1. When temperature sensor A ₁ ≧ temperature sensor A ₂ ≧ 5 ° C., the solenoid valve opens and the circulation pump is started, and then the circulation pump is turned off after about 3.5 minutes. Depending on the water storage capacity of the heat collection module). When the user uses hot water, the flow sensor emits a signal, the solenoid valve closes and the circulation pump is turned off, and the cold water is transported to the user's end of use through the water-injection pressure-reception circulating all-glass vacuum tube heat collection module To prevent that.

  2. When the water supply is stopped, the water supply check valve shuts off the reverse flow and prevents the tank water from being sucked out by the negative pressure.

  3. If the vacuum collector tube in the water-injection-type pressure-reception circulating all-glass vacuum tube collector module is ruptured due to special factors, the system pressure will drop to “0” and the magnetically controlled array contact explosion-proof pressure gauge will output a signal. At the same time as closing the valve and turning off the circulation pump, the drainage check valve blocks backflow and prevents water leakage.

4. When temperature sensor A ₁ ≦ 2 ° C., the heater band is energized and heated.

5. When temperature sensor A ₁ ≧ 6 ° C., energization to the heater band is stopped.

  Effects of the glass heat collecting tube single medium pressure-receiving / circulating layer heat storage / divided solar water heater according to the present invention are as follows.

  1. The split layer heat storage tank and the water injection type pressure-receiving circulation all-glass vacuum tube heat collection module collect heat and circulate at a forced temperature difference and connect to a tap water pressure pipe.

  2. The tap water pipe is connected to the water-injection pressure receiving circulation all-glass vacuum tube heat collection module through the water supply check valve, and at the same time to the magnetic control array contact explosion-proof pressure gauge. Prevent leakage of cold and hot water from the water heater.

  3. The glass heat collection tube single-medium pressure-receiving / circulation-layer heat storage / divided solar water heater according to the present invention is a single water medium temperature difference type forced circulation.

  4. Since the glass heat collecting tube single medium pressure receiving and circulating divided heat storage solar heat water heater according to the present invention uses a multi-chamber divided heat storage pressure receiving tank, it can be effectively divided by different water temperature densities. , Clarify the temperature difference between both ends of the water supply and drainage, thereby improving the heat collection efficiency of the heat collection module.

  5. Intelligent Control Center has realized temperature difference type heat collection circulation, collects signal variables of each sensor, and controls and reproduces the operation state of solar water heater in real time, making it safe and reliable for users. Provide high hot water.

It is explanatory drawing which shows the structure of the glass heat collecting tube single medium pressure receiving circulation division | segmentation thermal storage separated solar water heater which concerns on this invention. It is explanatory drawing which shows the structure of the water injection type | mold circulating all glass vacuum tube heat collection module in the glass heat collection tube single medium pressure receiving circulation division | segmentation thermal storage separated solar water heater which concerns on this invention. It is explanatory drawing which shows the structure of a magnetic control array contact explosion-proof pressure gauge.

As shown in FIG. 1, in a glass heat collecting tube single medium pressure-receiving / circulating layered heat storage divided solar water heater including a water supply check valve 26, a temperature sensor, a drainage check valve 210, and a solar heat collector 22, the glass heat collecting tube unit The single-medium pressure-receiving / circulating layered heat storage split solar water heater has a layered heat storage tank 21, an explosion-proof pressure gauge 27, and a circulation pump 29. The tap water pipe 218 is connected to the cross connection pipe through the water supply check valve 26. One end of the cross-connecting pipe is connected to the divided heat storage tank 21 through a pipe, one end is connected to an explosion-proof pressure gauge 27, and one end is connected to the solar heat collecting module cold water medium inlet through the pipe through the solenoid valve 25 and the heat circulation pump 24. Connect with. The solar heat collecting module hot water medium outlet is connected to another T-type connecting pipe through the temperature sensor A ₁ 211 and the drainage check valve 210. One end of the T-type connecting pipe is connected to the water supply end 214 via a flow sensor, and one end is connected to the separated-layer heat storage tank 21 via a pipe. A temperature sensor A ₂ 28 is attached to the divided heat storage tank at the connection end with the T-type connection pipe.

  The solar heat collector is a water injection type pressure-receiving circulation glass vacuum tube heat collection module 22, and as shown in FIG. 2, the water injection type pressure reception circulation all glass vacuum tube heat collection module includes a glass vacuum heat collection tube, a continuous collection tube, Including a heat collecting tube heat insulation shell, a heat collecting tube tailstock, a heat collecting module connection groove and the like. The glass vacuum heat collecting tube is connected to the continuous collecting tube. The water injection type pressure-receiving circulation all-glass vacuum tube heat collecting module has a water injection pipe and a water injection circulation channel, one end of the water injection tube is connected to the water injection circulation channel, and the other end directly communicates with the bottom of the glass vacuum tube. The water injection type pressure-receiving circulation all glass vacuum tube heat collection module has one water injection tube in which at least one vacuum heat collection tube injects a cold water medium into the bottom of the vacuum tube. The water injection circulation channel is installed in the continuous collection pipe, and a flow blind flange is installed at the water injection end of the water injection circulation channel. One end of the water injection circulation channel is a cold water medium inlet, and the other end is a hot water medium. It is an exit. The water injection pipe is mounted between the cold water medium inlet and the channel blind flange, and the water injection circulation channel has a notch as a hot water medium collection port between the blind flange and the outlet of the hot water medium, It is connected to the collecting pipe. The injection-type pressure-reception circulation all-glass vacuum tube heat collection module adopts a design in which the cold water medium and the hot water medium are separated, so that the short-circuit flow between the water inlet and the drain outlet of the currently disclosed all-glass vacuum tube solar collector The problem was improved.

  The heater band 6 in the water injection type pressure-receiving circulation all glass vacuum tube heat collection module is extended by a pipe connected to the water injection port of the water injection type pressure reception circulation all glass vacuum tube heat collection module.

  The heater band in the water injection type pressure-receiving circulation all glass vacuum tube heat collection module is extended by a pipe connected to the drain port of the water injection type circulation all glass vacuum tube heat collection module.

The glass heat collecting tube single-medium pressure-receiving / circulating layer storage thermal storage solar heating water heater includes an intelligent control center 23, an explosion-proof pressure gauge 27, a solenoid valve 25, a circulation pump 24, a heater band 6, a temperature sensor A ₁ 211, and a temperature sensor. A ₂ 28 and the flow sensor 29 are connected to the intelligent control center 23 by a circuit.

  FIG. 3 is an explanatory diagram showing the configuration of the magnetically controlled array contact explosion-proof pressure gauge. As shown in FIG. 3, the explosion-proof pressure gauge 27 is a magnetically controlled array contact explosion-proof pressure gauge. The magnetically controlled array contact explosion-proof pressure gauge is composed of a reed switch 31, a circuit printed circuit board 32, and the like, and the numerical values shown are accurate and have explosion-proof performance. The circuit printed board 32 can be connected as necessary, and the reed switch 31 is combined with different application arrays.

  The divided heat storage tank includes three pressure receiving containers 216, and is formed by welding three Φ400 × 300MM containers at intervals of 30MM using 304 # stainless steel. The pressure receiving containers are connected by a communication pipe 217 and have a heat insulating layer 215. The three pressure receiving containers 216 are arranged in a line, and one end of the communication pipe 217 between the pressure receiving containers 216 is connected to the bottom of the pressure receiving container, and the other end is connected to the tip of another pressure receiving container. The outer surface of the pressure receiving container is wrapped in a heat insulating layer. This heat insulating layer is made of a material that is weak in heat conduction and is manufactured by PU foaming. Although the divided-layer heat storage tanks shown in the figure are arranged in a horizontal row, the equivalent-layer heat storage tanks can be used by being arranged vertically.

  The specific operation method of the glass heat collecting tube single medium pressure-receiving / circulating layered heat storage / divided solar water heater according to the present embodiment is as follows.

1. In the case of temperature sensor A ₁ 211 ≧ temperature sensor A ₂ 28 ≧ 5 ° C., the solenoid valve 25 is opened and the circulation pump 24 is started. After about 3.5 minutes, the circulation pump is turned off (water injection type) (Depending on the amount of water stored in the circulating all-glass vacuum tube heat collecting module 12). When the user uses hot water, the flow sensor 29 outputs a signal, the solenoid valve 25 is closed, the circulation pump 24 is turned off, and the cold water is supplied to the user's use end through the water-injection pressure receiving circulation all-glass vacuum tube heat collecting module. Prevent it from being transported.

  2. When the water supply is stopped, the water supply check valve 26 blocks the reverse flow and prevents the tank water from being sucked out by the negative pressure.

  3. If the vacuum collector tube in the water injection type pressure-reception circulating all glass vacuum tube collector module is ruptured due to special factors, the system pressure will drop to “0” and the magnetic control array contact explosion-proof pressure gauge 27 will output a signal, At the same time as the solenoid valve 25 is closed and the circulation pump 24 is turned off, the drainage check valve 210 blocks the backflow and prevents water leakage.

4. When the temperature sensor A ₁ 211 ≦ 2 ° C., the heater band is energized and heated.

5. When temperature sensor A ₁ 211 ≧ 6 ° C., energization to the heater band is stopped.

  The embodiment described above is a better specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any person who is familiar with any technical field within the technical scope disclosed by the present invention and who has made equivalent replacements or modifications based on the technical plan and concept of the present invention is also within the protection scope of the present invention. include.

DESCRIPTION OF SYMBOLS 1 Water injection circulation flow path 2 Condensation pipe heat insulation outer shell 3 Continuous collection pipe 4 Hot water medium collection port 6 Heater band 7 Hot water medium outlet 8 Flow path blind flange 9 Heat collection module connection groove 10 Triangular stabilizer 11 Heat collection tube tailstock 12 Cold water medium inlet 14 Water injection pipe 16 Thermal insulation layer 18 Glass vacuum heat collection tube 21 Separation layer heat storage tank 22 Water injection type all-glass vacuum tube heat collection module 23 Intelligent control center 24 Circulation pump 25 Solenoid valve 26 Water supply check valve 27 Explosion-proof pressure gauge 28 Temperature Sensor A ₂
29 Flow sensor 210 Drainage check valve 211 Temperature sensor A ₁
213 Pipe 214 User water end 215 Thermal insulation layer 216 Pressure receiving vessel 217 Connection pipe 218 Tap water pipe

Claims (5)

A glass heat collecting tube single-medium pressure-receiving / circulating-layer heat storage / divided solar water heater including a water supply check valve, a temperature sensor, a drainage check valve, and a solar heat collector,
It has a separate heat storage tank, explosion-proof pressure gauge, and circulation pump. A tap water pipe is connected to the cross connection pipe through a water supply check valve, and one end of the cross connection pipe is connected to the separate heat storage tank through the pipe. Connected to the explosion-proof pressure gauge, one end is connected to a solar heat collector cold water medium inlet through a pipe through a solenoid valve and a heat circulation pump, and the solar heat collector hot water medium outlet is connected to a temperature sensor A ₁ and a drainage check valve. And connected to another T-type connecting pipe, one end of the T-type connecting pipe is connected to the water end via the flow sensor, and one end is connected to the divided heat storage tank via a pipe. glass heat collecting tube single medium pressure circulation amount thermal storage chromatid solar water heater characterized in that it is fitted with a temperature sensor a ₂ in the connection end of the mold connecting pipe. The solar heat collector is a water injection type all-glass vacuum tube heat collection module,
The heater band in the water injection type circulating all glass vacuum tube heat collecting module is extended and arranged by a pipe connected to the cold water medium inlet of the water injection type circulating all glass vacuum tube heat collecting module, and the water injection type circulating all glass vacuum tube The single glass heat collecting tube according to claim 1, wherein the heater band in the heat collecting module is extended and arranged by a pipe connected to a hot water medium outlet of the water injection type all-glass vacuum tube heat collecting module. Medium pressure circulation circulation heat storage split solar water heater.   The glass heat collecting tube single-medium pressure-receiving circulation layer storage heat-splitting solar water heater includes an intelligent control center, and the explosion-proof pressure gauge, the solenoid valve, the circulation pump, the heater band, and the flow sensor are connected to the intelligence by a circuit. The glass heat collecting tube single-medium pressure-receiving / circulating layered heat storage / divided solar water heater according to claim 1, connected to a control center.   4. The glass heat collecting tube single-medium pressure-receiving / circulating-layer heat storage / divided solar water heater according to claim 1, wherein the explosion-proof pressure gauge is a magnetically controlled array contact explosion-proof pressure gauge. 5. vessel.   2. The glass heat collecting tube single medium according to claim 1, wherein the divided heat storage tank includes at least two pressure receiving containers, and the pressure receiving containers are connected to each other by a communication pipe, and an outer surface is wrapped in a heat insulating layer. Receiving pressure circulation layer heat storage split solar water heater.

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