CN2265509Y - Vacuum tube solar energy heater fo producing hot water and steam - Google Patents

Abstract

The utility model discloses a vacuum tube solar water heater capable of producing steam, belonging to the technical field of the utilization of solar energy. The vacuum tube solar water heater capable of producing steam is a glass vacuum tube solar heat collector which is coated by a transparent cover and is provided with a selective absorbing coating. The purpose of the utility model is to provide a novel vacuum tube solar water heater capable of producing steam; the utility model mainly comprises a connecting and collecting device, a flow guide tube, an electromagnetic changeover valve; the utility model has substantial innovation. With adoption of an accessory, the remote control of the electromagnetic changeover valve can be realized; the utility model can provide heated water for drinking and steam for cooking and heating; compared with the existing glass vacuum tube solar water heater, the utility model has the advantages that the circulating speed is accelerated; the heat efficiency is improved, the heat absorbing efficiency is improved, the utilization of hot water is improved, one machine can have multiple functions, and the operation is convenient.

Description

The vacuum pipe solar steam heated water heater

The utility model belongs to solar thermal energy and utilizes technical field, is the evacuated solar collector that is surrounded by transparent housing.

Circulation resistance in the existing solar water heater glass-vacuum tube between the hot water or cold water is bigger, and the hot water temperature difference in the heat exchange is subjected to the influence of cold water, directly influences the thermal efficiency; And the hot water in the glass-vacuum tube can't take out, and can only use the hot water in the attemperater.This case applicant once did to improve to attemperater in 95237678.4 baffle plate type solar water tank patent application cases, but failed fundamentally to solve the problem that exists in the above-mentioned background technology.

The purpose of this utility model is to be to provide a kind of vacuum pipe solar steam heated water heater, and design important component accumulator and mozzle and electromagnetic change-over valve have substantial innovation, constitute independently water heater; Being equipped with annex can provide drinking water and steam to cook, warm oneself.

The utility model is finished with following mode: it has support 8, its anterior positive upper end is equipped with attemperater 4 and is connected with the glass-vacuum tube 1 that is equipped with the lower end, feature is that it is to connect by accumulator 2 and mozzle 3 between attemperater 4 and glass-vacuum tube 1, constitutes the unidirectional circulatory system of directed pipeline; In accumulator 2, has cold collector 11, cold type pipe 13 and both are communicated with, cold collector 11 is the following circulation pipe of end connection attemperater 4 in addition, cold type pipe 13 passes seal cover 15 and links to each other with mozzle 3, the lower end that mozzle 3 extend into the bottom hot type pipe 14 in the glass-vacuum tube 1 communicates with the internal orifice of glass-vacuum tube 1, the upper end is connected with hot collector 12, and the port of export by hot collector 12 connects the unidirectional circulatory system of formation by attemperater 4 → cold collector 11 → cold type pipe 13 → mozzle 3 → glass-vacuum tube 1 → hot type pipe 14 → hot collector 12 → attemperater 4 these directed pipelines with the upper circular tube of attemperater 4; It also has the annex steam chest, comprises casing 19 and case lid 20, by shell 21, heat-insulation layer 22, inner casing 23, steam chest 27, admission chew 24, go out that vapour chews 25, cushion rubber 26 and internal frame 28 form; Electromagnetic change-over valve 5 is equipped with in hot collector 12 ports of export and attemperater 4 upper circular tube connection places at accumulator 2; Can be automatically controlled, also can manually control.Also connect on this switching valve 5 constant temperature delivery water valve 6, vapour pressure formula control valve 7 are installed; Steam is chewed 9 and is chewed 24 by the admission of high-pressure hose and annex steam chest bottom and is connected, and case lid 20 tops of steam chest have one to go out vapour and chew 25 by nut wire connection steam discharge flexible pipe, and holding in addition of this steam discharge flexible pipe also is to be connected the upper circular tube back-steam by wire connection to chew on 10; At the outer protective case 17 that is with of accumulator 2, in heat-insulation layer 16 is arranged; Place mat has diffuse reflector 18 below glass-vacuum tube 1.Mozzle 3 in the glass-vacuum tube 1 also can replace with dividing plate.

The utility model and existing solar energy vacuum tube water heater relatively have following advantage:

1. quickening circulation rate improves heat absorption efficiency.

Usually existing vacuum solar water heater is directly to insert vacuum tube in the water tank, the hot and cold water circulation is all carried out in the same space in pipe, the vacuum tube bore is little, the degree of depth is bigger, bore and degree of depth ratio are about 1: 30, when the hot and cold water circulation time, because it is long to form young circulation process, hot and cold water carries out heat exchange in this process, to making temperature approach reduce to make circulation rate to reduce, and when hot water rose, cold water will descend and enter in the pipe, thereby produced the circular flow resistance, suppress circulation rate, thereby heat absorption efficiency is reduced.And the utility model is provided with predetermined pipeline, cold/hot water passage separates separately, in pipe, there is not circulation resistance, there is not heat exchange, can keep the initial temperature of hot and cold water to greatest extent, keep the maximum temperature difference value of hot and cold water in the vacuum tube, thereby guarantee the high specific method of double differences of cold water and hot water, circulation rate is accelerated, helped improving heat absorption efficiency.

2. raising rate of thermal water utilization.

Because the utility model has adopted accumulator and mozzle technology, and closed water tank, form in the vacuum tube by the intended flow unidirectional circulation of bottom toward cocycle, so the cold water that enters in the vacuum tube by mozzle when reality is used can eject hot water in the pipe to water tank, hot water is exhausted, thereby improve rate of thermal water utilization 15%--20%, existing vacuum tube, pot-type boiler can only use up the hot water in the water tank, can't take out the hot water in the vacuum tube.

3. a tractor serves several purposes

Owing to the utlity model has directed circulation line, and the vexed solarization temperature of glass-vacuum tube can reach 250 degree, so between the hot water outlet end of accumulator and heat circulation pipe, be provided with electromagnetic change-over valve, constant temperature delivery water valve, vapour pressure formula control valve, can provide hot water, boiling water, steam according to instructions for use far distance controlled electromagnetic change-over valve.

4. easy to use.

Owing to made the constant temperature delivery water valve, attemperater can be placed on the position that is lower than heat collector, can be placed on and indoorly also can be placed on outdoorly, water tank location can be placed arbitrarily in a word, when attemperater was lower than heat collector, the water supply tank that the top of heat collector is provided with the control of a band ball-cock assembly got final product.If attemperater is placed on indoor, can reduce the convective heat loss, because the distance between attemperater and the shower head shortens, reduced the waste of surplus water in the pipeline simultaneously.Attemperater, boiled water tank, steam chest all can be placed on indoor, extremely easy to use.The utility model has adopted accumulator, mozzle, and iris type water tank, improve rate of thermal water utilization hot water bathing can be provided, also can provide drinking water and steam to cook, the waste heat of steam returns the utilization rate that water tank has improved heat energy greatly again, still have good hot water performance at broken sky vapour, install electrothermal tube and temperature controller in the water tank additional, can guarantee overcast and rainy use.The utlity model has thermal efficiency height, quick heating, the heat utilization efficiency height, practical and convenient, advantage such as energy-conservation can be used as the all-weather solar steam heated water heater.

Now in conjunction with the accompanying drawings the utility model is described in further detail.

Fig. 1 is the utility model structure chart front view;

Fig. 2 is the utility model structure chart right view;

Fig. 3 is the utility model accumulator 2 structural representations;

Fig. 4 is an annexation schematic diagram between the utility model glass-vacuum tube 1, accumulator 2, the attemperater 4;

Fig. 5 is the A enlarged drawing of this Fig. 4;

Fig. 6 is the utility model stereogram;

Fig. 7 is an annex steam chest structural representation;

Fig. 8 is a structural representation between mozzle 3, the glass-vacuum tube 1.

With reference to accompanying drawing 1-8, the utility model adopts the glass-vacuum tube 1 that scribbles coating for selective absorption to make heat absorbing element, be provided with in the glass-vacuum tube 1 from the mouth of pipe to pipe the cold water mozzle 3 and the seal cover 15 at the end, also can be made into from the mouth of pipe to forming cold/hot water passage by dividing plate near the pipe bottom, cold water is flowed in dividing plate lower floor, and hot water is moving at the upper strata surface current.The sealing top has two comb holes, and cold type pipe 13 lower ends connect mozzle 3, and the upper end is communicated with cold collector 11, and hot type pipe 14 lower ends communicate with glass-vacuum tube 1 mouth of pipe, and the upper end is communicated with connecting pipe 2.The following circulation pipe of attemperater 4 and upper circular tube connect with the cold collector 11 and the hot collector 12 of accumulator 2 respectively.Form the circulatory system by attemperater 4 → cold collector 11 → cold type pipe 13 → mozzle 3 → glass-vacuum tube 1 → hot type pipe 14 → hot collector 12 → attemperater 4.The utility model wherein main member accumulator 2 is made up of cold collector 11, hot collector 12, cold type pipe 13, hot type pipe 14, seal cover 15, heat-insulation layer 16, protective case 17.The utility model is by glass-vacuum tube 1, and accumulator 2, mozzle 3, attemperater 4, electromagnetic change-over valve 5, constant temperature delivery water valve 6, Steam Pressure Control of Circulated valve 7, support 8 are formed.During placement, the right side can be high slightly.Cold water in the attemperater 4 passes through circulation pipe, the flow through cold collector 11 of accumulator 2, cold type pipe 13 enters in the glass-vacuum tube 1 via mozzle 3, after the solar radiation of the process of the water in the glass-vacuum tube 1, water temperature raises and makes hot and cold water form difference in specific gravity in the pipe, hot water rises along the vacuum tube inwall, enters water tank by hot type pipe 14 hot collectors 12.During use, constantly replenish cold water by mozzle 3, use up so can the hot water in the vacuum tube all be ejected by cold water to glass-vacuum tube 1 bottom by water tank.The utility model solar vacuum-tube water heater for simplicity, 4 the vacuum tube structure figure that only draw, actual product can be made into the different size solar vacuum-tube water heater more than 10.The utility model can also be supporting with other regular solar water tank except adopting the baffle plate type solar water tank.The effect of electromagnetic change-over valve 5 is that the hot water that control is come out through hot collector 12 is the attemperater 4 that enters above the accumulator 2, still advances accumulator other container below 2 by constant temperature delivery water valve 6 rows, or gives off boiling water, steam by vapour pressure formula control valve 7.If need not chew 10 o'clock by non-return back-steam when the utility model uses, then it is blocked up with the screw thread blanking cover, remove blanking cover during use, the waste heat vapour that steam chest is discharged can be collected attemperater 4, make it waste heat is heated water once more.

Claims (2)

1. a vacuum pipe solar steam heated water heater has support [8], and attemperater [4] is equipped with in its anterior positive upper end and the glass-vacuum tube [1] that is equipped with the lower end is connected, and it is characterized in that:

It is to connect by accumulator [2] and mozzle [3] between attemperater [4] and glass-vacuum tube [1], constitutes the unidirectional circulatory system of directed pipeline;

In accumulator [2], has cold collector [11], cold type pipe [13] and both are communicated with, cold collector [11] is the following circulation pipe of end connection attemperater [4] in addition, cold type pipe [13] passes seal cover [15] and links to each other with mozzle [3], the lower end that mozzle [3] extend into the bottom hot type pipe [14] in the glass-vacuum tube [1] communicates with the internal orifice of glass-vacuum tube [1], the upper end is connected with hot collector [12], and the port of export by hot collector [12] connects the unidirectional circulatory system of formation by attemperater [4] → cold collector [11] → cold type pipe [13] → mozzle [3] → glass-vacuum tube [1] → hot type pipe [14] → hot collector [12] → this directed pipeline of attemperater [4] with the upper circular tube of attemperater [4];

It also has the annex steam chest, comprises casing [19] and case lid [20], is chewed [24], is gone out vapour and chew [25], cushion rubber [26] and internal frame [28] and form by shell [21], heat-insulation layer [22], inner casing [23], steam chest [27], admission;

In hot collector [12] port of export of accumulator [2] and attemperater [4] upper circular tube connection place electromagnetic change-over valve [5] is housed and gets final product electrical control, also can manually control; Also connect on this switching valve [5] constant temperature delivery water valve [6], vapour pressure formula control valve [7] are installed;

Steam is chewed [9] and is chewed [24] by the admission of high-pressure hose and annex steam chest bottom and be connected, the case lid of steam chest [20] top has one to go out vapour and chew [25] by nut wire connection steam discharge flexible pipe, and the end in addition of this steam discharge flexible pipe also is to be connected the non-return back-steam of upper circular tube by wire connection to chew on [10];

At the outer protective case [17] that is with of accumulator [2], in heat-insulation layer [16] is arranged;

Place mat has diffuse reflector [18] below glass-vacuum tube [1].

2. vacuum pipe solar steam heated water heater according to claim 1 is characterized in that the mozzle 3 usefulness dividing plates in the glass-vacuum tube 1 replace.

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