The utility model content
The purpose of this utility model provides a kind of water-break overheat protector and the anti-overheated solar water heater of cutting off the water supply, can natural heat dissipation under the overheat condition of cutting off the water supply, improved the security performance of solar water heater greatly.
In order to achieve the above object; the technical solution of the utility model is: a kind of water-break overheat protector, it is characterized in that, and comprise water tank and be arranged on temperature-sensing valve, outlet pass and delivery port on the tank box; described outlet pass is provided with check valve, and restriction water can only flow out outside the case in case.
Another technical scheme of the utility model is that a kind of anti-overheated solar water heater of cutting off the water supply comprises several solar energy heat collection pipes, water inlet pipe, outlet pipe, heat-insulation layer, several phase change heat accumulators and water-break overheat protector;
Each phase change heat accumulator is arranged in each solar energy heat collection pipe;
Described water inlet pipe is enclosed within the outlet pipe;
Described outlet pipe is connected with phase change heat accumulator;
Described water-break overheat protector is connected with water inlet pipe, outlet pipe respectively;
Described heat-insulation layer is wrapped in the connector of outlet pipe, solar energy heat collection pipe and outlet pipe and the outside of solar energy heat collection pipe upper end.
The above-mentioned anti-overheated solar water heater of cutting off the water supply, wherein, described water inlet pipe is connected perforation by water inlet manifold and constitutes with several mozzles; Described outlet pipe is connected perforation by outfall sewer and constitutes with several heat exchanger tubes; Each heat exchanger tube is arranged in each phase change heat accumulator; Described each mozzle places in each heat exchanger tube, and water inlet manifold is arranged in the outfall sewer.
The above-mentioned anti-overheated solar water heater of cutting off the water supply, wherein, described water-break overheat protector comprises water tank and is arranged on temperature-sensing valve, outlet pass and delivery port on the tank box; Described temperature-sensing valve links to each other with outfall sewer; Described outlet pass is provided with check valve, and restriction water can only flow out in case outside the case, and this outlet pass links to each other with water inlet manifold.
The above-mentioned anti-overheated solar water heater of cutting off the water supply, wherein, described water inlet manifold is exposed at the outer end place of heat-insulation layer and is provided with check valve, and restriction water can only flow in the water inlet pipe from the outside; Described outfall sewer is exposed at the outer end place of heat-insulation layer and is provided with voltage-controlled valve.
The above-mentioned anti-overheated solar water heater of cutting off the water supply, wherein, described temperature-sensing valve comprises valve body, spring, spool core body, phase-change material, flexible member, spool end socket, push rod, valve gap and connector;
Described connector is arranged on the central authorities of valve body bottom, and this connector links to each other with outfall sewer;
Described valve gap is arranged on the top of valve body, and this valve gap is fixedlyed connected with valve body;
Described valve gap is provided with a cavity, and the top of described cavity is provided with at least one delivery port, and the bottom of this cavity is provided with a valve port;
Described spool core body is arranged on the endoceliac top of valve, this spool core body one end sealing, other end opening;
Described spring is arranged in the chamber of valve body, and an end of this spring is connected with the bottom of valve body, and its other end is connected with the spool end socket;
Described phase-change material is inserted in the spool core body;
Described flexible member is arranged on the openend of spool core body, and the phase-change material in this flexible member and the spool core body closely contacts; The central authorities of described flexible member are one " U " type groove;
One end of described push rod is inserted in " U " type groove of flexible member, and the valve port that its other end passes the cavity bottom stretches in the cavity, does not contact the top of cavity;
Described spool end socket is arranged on the top of flexible member, around push rod, this spool end socket contacts with the valve port of cavity bottom, forms pressurizing window.
The above-mentioned anti-overheated solar water heater of cutting off the water supply, wherein, described phase change heat accumulator comprises fixedly end cap, body, fastening end cap and phase-change material, described body both ends open, described fixedly end cap is arranged on an end of body, fixedly end cap is corresponding with the blind end of solar energy heat collection pipe for this, and described fastening end cap is arranged on the other end of body, and described phase-change material is inserted in the body.
The above-mentioned anti-overheated solar water heater of cutting off the water supply, wherein, described fixedly end cap is made up of tail end cover and several supports, and described several supports are vertically set on the inwall of body bottom or are vertically set on a side of tail end cover, and described support bracketing heat exchanger tube.
The above-mentioned anti-overheated solar water heater of cutting off the water supply, wherein, described fastening end cap comprises head end lid, elastic seal ring, baffle ring, stop-leak compound and friction top, the inwall that described head end covers an end is provided with convex, the outer wall of its other end is provided with groove, the end that head end is covered with convex is connected with body, described friction top is plugged in the groove on the head end cover outer wall, described elastic seal ring and baffle ring are superimposed upon in separately mode between the convex and friction top of head end lid, and described stop-leak compound is filled in the gap between elastic seal ring, baffle ring and the heat exchanger tube.
The above-mentioned anti-overheated solar water heater of cutting off the water supply wherein, also comprises thermostatic valve and auxiliary heater; Described thermostatic valve is serially connected between water inlet manifold and the outfall sewer; The inlet port of described auxiliary heater is connected with outfall sewer.
The utility model makes it compared with prior art owing to adopt technique scheme, has the following advantages and good effect:
1, the utility model water-break overheat protector and the anti-overheated solar water heater of cutting off the water supply are owing to be provided with water-break overheat protector; can be under the overheat condition of cutting off the water supply natural heat dissipation; prevent that effectively phase change heat accumulator is overheated, improve the security performance of solar water heater greatly.
2, the utility model water-break overheat protector and the anti-overheated solar water heater of cutting off the water supply be owing to be provided with check valve and temperature-sensing valve, can reduce solar water heater and not have thermal loss under the superheat state at normal hydraulic pressure.
3, the utility model water-break overheat protector and the anti-overheated solar water heater of cutting off the water supply are owing to be provided with the compound use of thermostatic valve and auxiliary heater and solar energy heating; make leaving water temperature stability high; solar energy preferentially uses, and solar energy also can guarantee the supply of heat energy when not enough.
The specific embodiment
Below specify better embodiment of the present utility model referring to accompanying drawing:
Referring to Fig. 1, a kind of water-break overheat protector comprises water tank 8 and is arranged on temperature-sensing valve 4, outlet pass 9 and delivery port 11 on water tank 8 casings that described outlet pass 9 is provided with check valve 10, and restriction water can only flow out outside the case in case.
Referring to Fig. 2, a kind of anti-overheated solar water heater of cutting off the water supply comprises several solar energy heat collection pipes 1, several phase change heat accumulators 2, water inlet pipe, outlet pipe, heat-insulation layer 3 and water-break overheat protector;
Each phase change heat accumulator 2 is arranged in each solar energy heat collection pipe 1;
Described water inlet pipe is enclosed within the outlet pipe;
Described outlet pipe is connected with phase change heat accumulator 2;
Described water-break overheat protector is connected with water inlet pipe, outlet pipe respectively;
Described heat-insulation layer 3 is wrapped in the connector of outlet pipe, solar energy heat collection pipe 1 and outlet pipe and the outside of solar energy heat collection pipe 1 upper end.
Described water inlet pipe is connected perforation by water inlet manifold 51 and constitutes with several mozzles 52;
Described outlet pipe is connected perforation by outfall sewer 61 and constitutes with several heat exchanger tubes 62;
Each heat exchanger tube 62 is arranged in each phase change heat accumulator 2; Described each mozzle 52 places in each heat exchanger tube 62, and water inlet manifold 51 is arranged in the outfall sewer 61.
Described water-break overheat protector comprises water tank 8 and is arranged on temperature-sensing valve 4, outlet pass 9 and delivery port 11 on water tank 8 casings;
Described temperature-sensing valve 4 links to each other with outfall sewer 61;
Described outlet pass 9 is provided with check valve 10, and restriction water can only flow out in case outside the case, and this outlet pass 9 links to each other with water inlet manifold 51;
Described water inlet manifold 51 is exposed at heat-insulation layer 3 outer end places and is provided with check valve 13, and restriction water can only flow in the water inlet pipe from the outside;
Described outfall sewer 61 is exposed at heat-insulation layer 3 outer end places and is provided with voltage-controlled valve 12.
Described check valve 13 guarantees that under water inlet pipe is cut off the water supply situation the water in the water tank 8 does not flow out from water inlet manifold 51, and described voltage-controlled valve 12 guarantees that under water inlet pipe is cut off the water supply situation the water in the water tank 8 does not flow out from outfall sewer 61.
Referring to Fig. 3, described temperature-sensing valve 4 comprises valve body 41, spring 42, spool core body 43, phase-change material 44, flexible member 45, spool end socket 46, push rod 47, valve gap 48 and connector 40;
Described connector 40 is arranged on the central authorities of valve body 41 bottoms, and this connector 40 links to each other with outfall sewer 61;
Described valve gap 48 is arranged on the top of valve body 41, and this valve gap 48 is fixedlyed connected with valve body 41;
Described valve gap 48 is provided with a cavity 410, and the top of described cavity 410 is provided with at least one delivery port 49, and the bottom of this cavity 410 is provided with a valve port 411;
Described spool core body 43 is arranged on the top in valve body 41 chambeies, this spool core body 43 1 ends sealing, other end opening;
Described spring 42 is arranged in the chamber of valve body 41, and an end of this spring 42 is connected with the bottom of valve body 41, and its other end is connected with spool end socket 46;
Described phase-change material 44 is inserted in the spool core body 43;
Described flexible member 45 is arranged on the openend of spool core body 43, and the phase-change material 44 in this flexible member 45 and the spool core body 43 closely contacts; The central authorities of described flexible member 45 are one " U " type groove;
One end of described push rod 47 is inserted in " U " type groove of flexible member 45, and the valve port 411 that its other end passes cavity 410 bottoms stretches in the cavity 410, does not contact the top of cavity 410;
Described spool end socket 46 is arranged on the top of flexible member 45, around push rod 47, this spool end socket 46 contacts with the valve port 411 of cavity 410 bottoms, forms pressurizing window.
In the above-mentioned temperature-sensing valve 4, valve body 41 is used to connect outfall sewer 61, and spring 42 is pressed in valve port 411 with spool end socket 46, and spool core body 43 is used to deposit phase-change material 44, and flexible member is used to seal phase-change material 44.
The operation principle of described temperature-sensing valve 4 is: when temperature was not high, phase-change material 44 volumes were less, and push rod 47 does not contact the top of cavity 410, and spool end socket 46 press seal valve ports 411 make temperature-sensing valve 4 be in off-state; At high temperature, phase-change material 44 becomes liquid by solid, volume significantly expands, extruding flexible member 45, flexible member 45 passes to push rod 47 with the pressure that phase-change material 44 expands generation, and push rod 47 moves to the top of cavity 410 under pressure, the top of contact cavity 410 also is subjected to stopping of cavity 410 tops, the anti-flexible member 45 that pushes away causes spool end socket 46 to retreat, and opens the valve port 411 of temperature-sensing valve 4.
Referring to Fig. 4, described solar energy heat collection pipe 1 is made up of outer glass pipe 11, inner glass tube 12, described outer glass pipe 11 and the sealing of inner glass tube 12 homogeneous ends, other end opening, inside and outside glass tube 12 and 11 is nested in the same way, forms a vacuum chamber 14 at inside and outside glass tube 12 of openend and 11 weldings.Described outer glass pipe 11 and inner glass tube 12 all are " U " type.
Referring to Fig. 5, be depicted as an embodiment of phase change heat accumulator 2, described phase change heat accumulator 2 comprises fixedly end cap 21, body 22, fastening end cap 23 and phase-change material 7, described body 22 both ends opens, described fixedly end cap 21 is arranged on an end of body 22, fixedly end cap 21 is corresponding with the blind end of solar energy heat collection pipe 1 for this, and described fastening end cap 23 is arranged on the other end of body 22, and described phase-change material 7 is inserted in the body 22.
Described fixedly end cap 21 is made up of tail end cover 24 and several supports 25, and described several supports 25 are vertically set on the inwall of body 22 bottoms, and described support 25 bracketings heat exchanger tube 62.
Described support 25 can be annulus or forked.
The end that the body 22 of described phase change heat accumulator 2 connects fastening end cap 23 is a contraction mouth, described fastening end cap 23 is stuck in the contraction mouth of body 22, be provided with elastic seal ring 20 between the contraction mouth of described fastening end cap 23 and body 22, form fastening end cap 23 and be connected with the contraction mouth elastic shrinkage of body 22.
Described fastening end cap 23 comprises head end lid 26, elastic seal ring 27, baffle ring 28 and friction top 30, the inwall that described head end covers 26 1 ends is provided with convex, the outer wall of its other end is provided with groove, head end lid 26 ends that are provided with convex are connected with body 22, described friction top 30 is plugged on head end and covers in the groove on 26 outer walls, and described elastic seal ring 27 and baffle ring 28 are superimposed upon between the convex and friction top 30 of head end lid 26 in mode separately.
Can fill stop-leak compound 29 in the gap between elastic seal ring 27, baffle ring 28 and heat exchanger tube 4.
Referring to Fig. 6, be depicted as second embodiment of phase change heat accumulator 2, embodiment two is that with the difference of embodiment one described several supports 25 are vertically set on a side of tail end cover 24; Described fastening end cap 23 is welded on the body 22.
The operation principle of described phase change heat accumulator 2 is: solar energy heat collection pipe 1 absorbs solar energy and conversion of solar energy is become heat energy, heat energy passes to phase-change material 6 through body 22, phase-change material 6 is stored heat energy, cold water flows into each mozzle 52 by water inlet manifold 51, and at this moment, phase-change material 6 discharges the heat energy of storing, the heat energy that discharges passes to the cold water that mozzle 52 imports through heat exchanger tube 62, become hot water after the cold water heat absorption, hot water flows into outfall sewer 61 through heat exchanger tube 62, outwards heat supply water; When solar energy was superfluous, phase-change material 7 can be overheated, causes phase change heat accumulator 2 bodys 22 internal pressures constantly to rise, and the high pressure in phase change heat accumulator 2 bodys 22 can promote heat exchanger tube 62 and outwards move, and discharges high pressure, finishes overheated unloading.
Referring to Fig. 7, described phase change heat accumulator 2 is arranged in the inner glass tube 12 of solar energy heat collection pipe 1, is provided with the gap between the inner surface of described phase change heat accumulator 2 and inner glass tube 12.
Described heat exchanger tube 62 is the straight tube of end sealing, other end opening, the blind end 63 of described heat exchanger tube 62 is inserted in the phase change heat accumulator 2, this blind end 63 is positioned at 25 on several supports, and be provided with the gap with the tail end cover 24 of phase change heat accumulator 2, the outer surface of the openend 64 of described heat exchanger tube 62 is provided with interface 65, and this interface 65 is connected with outfall sewer 61.
Described heat exchanger tube 62 can assemble with outfall sewer 61 fast by its interface 65, therefore, installs, dismantles very convenient.
Described heat exchanger tube 62 is slidingly connected with the elastic seal ring 27 of fastening end cap 23 corresponding positions and fastening end cap 23.
Described mozzle 52 is the straight pipeline of the equal opening in two ends, and this mozzle 52 inserts in heat exchanger tubes 62, and is provided with the gap with the blind end 63 of heat exchanger tube 62.
Mozzle 52 inserts the mountain type runner that has formed water in the heat exchanger tube 62, has increased heat exchange area, makes heat exchange more even.
Described phase-change material 7 places in the body 22 of phase change heat accumulator 2, fills the inner surface of body 22 and the gap between the heat exchanger tube 62.
Phase-change material 7 places in the body 22, has avoided phase-change material 7 to contact the problem that causes material sex change, atmosphere pollution with ambient atmosphere, and can also prevent phase-change material 7 leakages.
Described phase-change material 7 can be hyrate, paraffin or pitch.
The operation principle of the described anti-overheated solar water heater of cutting off the water supply is: under the normal non-superheat state of hydraulic pressure (water inlet pipe normal water supply), check valve 13 on the water inlet manifold 51 is opened, the check valve 10 of water-break overheat protector disconnects, temperature-sensing valve 4 also is in off-state, water in water in water inlet pipe, phase change heat accumulator 2 and the outlet pipe and the water tank 8 is to separating, and heat also seldom passes to water tank 8 in phase change heat accumulator 2 pipes; Under normal hydraulic pressure superheat state, phase change heat accumulator 2 is overheated, temperature-sensing valve 4 is opened, outlet pipe hot water enters water tank 8 under the effect of water inlet pipe hydraulic pressure, cold water enters phase change heat accumulator 2 from water inlet manifold 51 through mozzle 52, finish phase change heat accumulator 2 temperature-fall periods, after water tank 8 filled with, unnecessary water was discharged by discharge outlet 11; Under (the water inlet pipe does not supply water) superheat state of cutting off the water supply; check valve 13 on the water inlet manifold 51 disconnects; the check valve 10 of water-break overheat protector is opened; temperature-sensing valve 4 is opened; because the temperature of the relative water tank 8 interior water of the temperature of water is higher in the outlet pipe; outlet pipe hot water density is less relatively; can be moved upward to water tank 8 at gravity effect lower discharging tube hot water through temperature-sensing valve 4; and water tank 8 inner cold waters can enter phase change heat accumulator 2 through check valve 10, water inlet pipe house steward 51, the mozzle 52 of water-break overheat protector, and phase change heat accumulator 2 is cooled off.
Referring to Fig. 8, the anti-overheated solar water heater of cutting off the water supply also comprises thermostatic valve 14 and auxiliary heater 15;
Described thermostatic valve 14 is serially connected between water inlet manifold 51 and the outfall sewer 61;
The inlet port of described auxiliary heater 15 is connected with outfall sewer 61.
Described thermostatic valve 14 when the hot water temperature surpasses design temperature with water inlet manifold 51 in cold water connect, reduce the hot water temperature with this and become warm water, for use, at this moment, do not work by auxiliary heater 15 through auxiliary heater 15 outflows for warm water; Thermostatic valve 14 when the hot water temperature is lower than design temperature and the cold water in the water inlet manifold 51 cut off, hot water enters auxiliary heater 15, hot water further reaches design temperature for use after the heating through auxiliary heater 15, at this moment, auxiliary heater 15 work.