Background technology
Solar water heater is made up of complete glass vacuum sun thermal-collecting tube (or claiming vacuum tube, vacuum heat collection pipe), attemperater, bearing support three big parts, and its core set thermal element is an all-glass vacuum thermal-collecting tube.Plate multilayer gradual change aluminium-nitrogen aluminized coating or stainless steel aluminium nitride through magnetron sputtering technology at the outer wall of inner tube of thermal-collecting tube, this coating can stand 400 ℃ high temperature to the selective absorption of sunshine, its absorptance 〉=0.92, and emission is than≤0.09 (80 ℃).Vacuum heat collection pipe selectivity absorption sunshine is converted into heat energy with luminous energy constantly heats the water in the vacuum tube.Because " thermal siphon " effect, promptly the proportion of cold water is bigger, and the proportion of hot water is less, thereby the hot water in the vacuum tube enters water tank naturally constantly toward come-up.Water in water tank constantly sinks naturally, enters vacuum heat collection pipe.Go round and begin again, the water in solar water heater's attemperater also just has been heated.
Direct insertion all-glass vacuum thermal-collecting tube solar water heater, be high-absorbility and the low-launch-rate that utilizes vacuum heat collection pipe to have, convert the solar radiation that absorbs to heat energy, utilize cold water than great, the characteristics that hot water proportion is little form cold water from top to bottom, hot water Natural Circulation from bottom to top in vacuum tube, the temperature of whole water is progressively raise, reach uniform temperature.But the pipe inner storing water amount of existing vacuum heat collection pipe is excessive, and heat conduction toggle speed is slow, easily causes heat waste.Water capacity is 3L in the general diameter 58mm, the pipe of the vacuum heat collection pipe of long 1.8m, and the solar water heater water tank capacity of one 30 arm is 250L, and then the water in the vacuum heat collection pipe will reach 90L, account for 26% of Total Water.Because of the defective of existing structure, store this part water in vacuum heat collection pipe and entrained heat thereof after the intensification, not only can not be used effectively, play the effect of heat radiation on the contrary.
The defective that existing direct insertion all-glass vacuum thermal-collecting tube solar water heater roughly exists is as follows:
(1) water yield in the vacuum heat collection pipe is excessive, and toggle speed is slow.With diameter 58mm, the vacuum heat collection pipe of long 1.5m is an example, and the water yield accounts for about 1/3 of water volume that can be utilized in the pipe, and the water in the necessary first heating tube of the heat of the sun of conversion is so cause toggle speed slow;
(2) heat waste is big, and available heat is low.Water in the vacuum heat collection pipe pipe not only can not use, and cause heat waste, make the water that resides in the vacuum heat collection pipe play the reaction of heat radiation, especially the water in the pipe is through night or cloudy day cooling, and when solar temperature rising once more, heating earlier is with the water of temperature.This problem especially severe in northerly winter, especially when ice and snow covered, the water freezing in the pipe caused breaking of vacuum tube, causes the thing of systemic breakdown to occur repeatedly;
(3) breaking of single vacuum tube promptly caused the whole system paralysis, special circumstances, and as balcony wall-hanging, peril is easily brewageed in breaking of single vacuum tube;
(4) because of the requirement of manufacturing process and installation, ligament is big, and the photo-thermal conversion ratio of unit are is low.With the vacuum tube of diameter 58mm, long 1.8m, ligament is generally 80mm, and its photo-thermal conversion ratio generally is lower than 55%;
(5) vacuum heat-collecting in-tube fouling and precipitation have a strong impact on exchange heat, even make the vacuum heat-collecting tube failure.
Summary of the invention
The purpose of this utility model provides a kind of automatic desludging type solar water heater, this automatic desludging type solar water heater has solved existing direct insertion vacuum heat-collecting cast solar-energy water heater vacuum thermal-collecting tube can not solid matter, heat waste is excessive, improvement by structure, realize mode, the reduction heat waste of new quick exchange heat, improve day available heat that gets; Simultaneously, in use remove incrustation scale automatically, solved precipitation of scales and influence heat conducting problem.
The utility model is a kind of automatic desludging type solar water heater, it is characterized in that: include water tank (11), shunt catheter (12), a plurality of thermal-arrest heat-conducting unit that is arranged in parallel, a plurality of sealing ring, water level controller (13), inlet valve (15), flowing water Valve (17); The thermal-arrest heat-conducting unit is installed on the water tank (11) by sealing ring;
Described a plurality of thermal-arrest heat-conducting unit that is arranged in parallel is meant the identical A thermal-arrest heat-conducting unit (5) of structure, B thermal-arrest heat-conducting unit (6), C thermal-arrest heat-conducting unit (7), N thermal-arrest heat-conducting unit (8), the distribution that is parallel to each other of A thermal-arrest heat-conducting unit (5), B thermal-arrest heat-conducting unit (6), C thermal-arrest heat-conducting unit (7), N thermal-arrest heat-conducting unit (8);
Described a plurality of sealing ring is meant the identical A sealing ring 51 of structure, B sealing ring 61, C sealing ring 71, N sealing ring 81;
Be provided with A through hole (11a), E through hole, D through hole, C through hole, N through hole, B through hole (11b) on the water tank (11) from right to left; Water level controller (13) is installed on one madial wall of water tank (11); Be placed with shunt catheter (12) in the water tank (11);
Be provided with A diffluence pass, E diffluence pass, D diffluence pass, C diffluence pass, N diffluence pass on the shunt catheter (12) from right to left;
The center of A sealing ring (51) has through hole (501), and the outside of A sealing ring (51) is spill ring (502);
A thermal-arrest heat-conducting unit (5) is by the tube-in-tube structure that outside to inside is vacuum heat collection pipe (1), heat pipe (2), water inlet isocon (3) in turn, and heat pipe (2) is installed in the through hole (10) of vacuum heat collection pipe (1) by location thermal resistance plug (4).
Automatic desludging type solar water appliance of the present utility model has following advantage:
(1) Rapid Thermal conduction: can reach the high temperature more than 300 ℃ during owing to vacuum heat collection pipe 1 vexed the solarization, utilize the sealing of heat pipe 2 one ends, and the relative thinner pipe of internal diameter, accelerated the speed of the water convection current in the heat pipe 2, improve transmission heat speed, made heat transmit fast, reached thermal balance;
(2) reduce heat waste:, greatly reduce the heat leak that causes inadequately owing to vacuum heat collection pipe 1 vacuum owing between heat pipe 2 and vacuum heat collection pipe 1 inwall air and wire 23 are arranged;
(3) improve day available a heat: though the water in the conventional vacuum heat collection pipe is the part that heats at first, can not with and can only be deposited in the vacuum tube, cause the loss of heat, by the improvement to heat-conducting mode, available heat improves greatly;
(4) because water inlet isocon 3 is the roots that insert in the heat pipe 2, in last water process, the incrustation scale of precipitation can be gone out heat pipe 2, solved water heater precipitation of scales problem;
(5) the pipe-in-pipe structure of employing water inlet isocon, heat pipe, vacuum heat collection pipe can be because of the bombing that contacts of water and vacuum heat-collecting tube wall, even single vacuum heat collection pipe cracking can not make whole water heater paralysis yet;
(6) owing to adopt the vacuum heat-collecting inside pipe wall to be positioned the outer wall of heat pipe 2, relocate the technological improvement on water tank, can realize the solid matter between the vacuum heat collection pipe, the gap between the tube and tube, narrow down to 1mm by present general 22mm, improved the photo-thermal conversion ratio of unit are greatly.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Referring to shown in Figure 1, automatic desludging type solar water heater of the present utility model includes a water tank 11, shunt catheter 12, the thermal-arrest heat-conducting unit of a plurality of parallel arranged, a plurality of sealing ring, water level controller 13, inlet valve 15, a flowing water Valve 17; The thermal-arrest heat-conducting unit of described a plurality of parallel arranged be meant the identical A thermal-arrest heat-conducting unit 5 of structure, B thermal-arrest heat-conducting unit 6, C thermal-arrest heat-conducting unit 7 ..., N thermal-arrest heat-conducting unit 8; A thermal-arrest heat-conducting unit 5, B thermal-arrest heat-conducting unit 6, C thermal-arrest heat-conducting unit 7 ..., N thermal-arrest heat-conducting unit 8 distribution that is parallel to each other; A plurality of sealing rings are meant the identical A sealing ring 51 of structure, B sealing ring 61, C sealing ring 71, N sealing ring 81.In the utility model, the arrangement number of thermal-arrest heat-conducting unit can be mated assembling according to the hot water amount that the user uses.As a water heater that uses the hot water amount as 350L, can be assemblied on the water tank 11 by parallel arranged 30~35 support thermal conductance hot cells.
In the utility model, for the structure of thermal-arrest heat-conducting unit shown in Fig. 3, Fig. 3 A, A thermal-arrest heat-conducting unit 5 is by the tube-in-tube structure that outside to inside is vacuum heat collection pipe 1, heat pipe 2, water inlet isocon 3 in turn, and heat pipe 2 is installed in the through hole 10 of vacuum heat collection pipe 1 by location thermal resistance plug 4; The described tube-in-tube structure isocon 3 of promptly intaking is enclosed within the heat pipe 2, and heat pipe 2 is enclosed within the vacuum heat collection pipe 1.
Location thermal resistance plug 4 part that is formed in one, the center of location thermal resistance plug 4 has central through hole 41, and the cock body of location thermal resistance plug 4 is provided with outer shroud 43, stick harness 42; Location thermal resistance plug 4 adopts the good materials processing of water-stop, as silica gel, rubber etc.The openend 21 that the central through hole 41 of location thermal resistance plug 4 is used for heat pipe 2 passes.The stick harness 42 of location thermal resistance plug 4 and the through hole 10 inwall fluid-tight engagement of vacuum heat collection pipe 1, the heat in reaching vacuum heat collection pipe 1 does not lose.Outer shroud 43 is used to support heat pipe 2.In the utility model, (bore dia 0.3~2mm), micro hole are used for the air with space between vacuum heat collection pipe 1 and the heat pipe 2, and the pressure that produces when high temperature is discharged also can to have micro hole on the location thermal resistance plug 4.
Vacuum heat collection pipe 1 one ends are blind end, and the other end has through hole 10, and the end that through hole 10 is used for heat pipe 2 passes and by location thermal resistance plug 4 heat pipe 2 and vacuum heat collection pipe 1 is installed together.In the utility model, vacuum heat collection pipe 1 is selected double-deck complete glass vacuum sun thermal-collecting tube material common on the market for use.Vacuum heat collection pipe 1 length H
1=1.15~3.0m, the outer diameter D of vacuum heat collection pipe 1
1=40~80mm, the inside diameter D of vacuum heat collection pipe 1
10=30~70mm.
Be wound with wire 23 (be generally on the outer wall that inserts that section heat pipe 2 in the vacuum heat collection pipe 1 and be wound with wire 23) on the outer wall of heat pipe 2, the cross-sectional area of wire 23 is 0.05~2mm
2, wire 23 is used to accelerate the conversion of heat.One end of heat pipe 2 is a blind end 22, and the other end is an openend 21, and blind end 22 inserts in the vacuum heat collection pipes 1, and the through hole that has on openend 21 and the water tank 11 is connected (connection can be to be threaded or to peg graft or weld) herein.Heat pipe 2 is realized location with vacuum heat collection pipe 1 by location thermal resistance plug 4, promptly heat pipe 2 insert in the vacuum heat collection pipes 1 length and with being connected of vacuum heat collection pipe 1.The length H of heat pipe 2
2=0.5~3.0m, the outer diameter D of heat pipe 2
2=15~65mm, the inside diameter D of heat pipe 2
20=10~64mm.
The two ends of water inlet isocon 3 are opening (A openend 31, B openend 32), the A openend 31 of water inlet isocon 3 is connected (connect can be to be threaded or to peg graft or weld) herein with UNICOM's mouth of shunt catheter 12, the B openend 32 of the isocon 3 of intaking passes behind the through hole on the water tank 11 in the insertion heat pipe 2; The length H of water inlet isocon 3
3=0.5~3.0m, the outer diameter D of water inlet isocon 3
3=4~30mm, the inside diameter D of water inlet isocon 3
30=1~29mm.
In the utility model, be provided with A through hole 11a, E through hole, D through hole, C through hole, N through hole, B through hole 11b on the water tank 11 from right to left; On one madial wall of water tank 11 water level controller 13 is installed; Be placed with shunt catheter 12 in the water tank 11;
A through hole 11a is used for A conduit 14 and passes, and A conduit 14 is provided with inlet valve 15, and an end of A conduit 14 is connected on the shunt catheter 12, and the other end of A conduit 14 is connected with the water inlet pipe of outside, realizes that feed-tank 11 supplies water;
B through hole 11b is used to connect an end of B conduit 16 (B conduit 16 place water tank 11 outer), and the other end of B conduit 16 is provided with flowing water Valve 17, and B conduit 16 is used for hot water drawn for the user and uses;
A sealing ring 51 is installed, the openend 22 of the heat-transfer pipe 2 of socket A thermal-arrest heat-conducting unit 5 in the through hole 501 of A sealing ring 51 in the E through hole; In the utility model, the heat pipe 2 in the A thermal-arrest heat-conducting unit 5 by with the tight fit effect of A sealing ring 51, can make A thermal-arrest heat-conducting unit 5 be installed in water tank 11; B sealing ring 61, C sealing ring 71, N sealing ring 81 are identical with the function of A sealing ring 51.
B sealing ring 61 is installed, the openend of the heat-transfer pipe of socket B thermal-arrest heat-conducting unit 6 in the through hole of B sealing ring 61 in the D through hole;
C sealing ring 71 is installed, the openend of the heat-transfer pipe of socket C thermal-arrest heat-conducting unit 7 in the through hole of C sealing ring 71 in the C through hole;
N sealing ring 81 is installed, the openend of the heat-transfer pipe of socket N thermal-arrest heat-conducting unit 8 in the through hole of N sealing ring 81 in the N through hole; The internal diameter of water tank 11 is 200~600mm.
In the utility model, a plurality of sealing rings are meant the identical A sealing ring 51 of structure, B sealing ring 61, C sealing ring 71, N sealing ring 81, and A sealing ring 51, B sealing ring 61, C sealing ring 71, N sealing ring 81 are socketed in respectively in the E through hole, D through hole, C through hole, N through hole of water tank 11;
The closely cooperate E through hole of spill ring 502 and water tank 11 of (vacuum heat collection pipe 1 passes through hole 501), A sealing ring 51 of vacuum heat collection pipe 1 outer wall of A thermal-arrest heat-conducting unit 5 and the through hole 501 of A sealing ring 51 closely cooperates and realizes that the heat pipe 2 with A thermal-arrest heat-conducting unit 5 is installed on the water tank 11;
The closely cooperate D through hole of the spill ring of (through hole that vacuum heat collection pipe passes B sealing ring 61), B sealing ring 61 and water tank 11 of the vacuum heat collection pipe outer wall of B thermal-arrest heat-conducting unit 6 and the through hole of B sealing ring 61 closely cooperates and realizes that the heat pipe with B thermal-arrest heat-conducting unit 6 is installed on the water tank 11;
The closely cooperate C through hole of the spill ring of (through hole that vacuum heat collection pipe passes B sealing ring 71), C sealing ring 71 and water tank 11 of the vacuum heat collection pipe outer wall of C thermal-arrest heat-conducting unit 7 and the through hole of C sealing ring 71 closely cooperates and realizes that the heat pipe with C thermal-arrest heat-conducting unit 7 is installed on the water tank 11;
The closely cooperate N through hole of the spill ring of (through hole that vacuum heat collection pipe passes N sealing ring 81), N sealing ring 81 and water tank 11 of the vacuum heat collection pipe outer wall of B thermal-arrest heat-conducting unit 8 and the through hole of N sealing ring 81 closely cooperates and realizes that the heat pipe with N thermal-arrest heat-conducting unit 8 is installed on the water tank 11;
The center of A sealing ring 51 has through hole 501, and the outside of A sealing ring 51 is a spill ring 502; When assembling, the spill ring 502 of A sealing ring 51 is fastened in the through hole of water tank 11, and A thermal-arrest heat-conducting unit 5 is installed in the through hole 501 of A sealing ring 51.
In the utility model, be provided with a plurality of diffluence pass (A diffluence pass, E diffluence pass, D diffluence pass, C diffluence pass, N diffluence pass) on the shunt catheter 12 from right to left, the A diffluence pass is used for being connected with A conduit 14, and E diffluence pass, D diffluence pass, C diffluence pass, N diffluence pass are connected with an end of the water inlet isocon of A thermal-arrest heat-conducting unit 5, B thermal-arrest heat-conducting unit 6, C thermal-arrest heat-conducting unit 7, N thermal-arrest heat-conducting unit 8 respectively.Shunt catheter 12 is positioned in the water tank 11.The internal diameter of shunt catheter 12 is 15~50mm.The placement location of shunt catheter 12 in water tank 11 be to insert on the water tanks length in 1 by A conduit 14, and the water inlet isocon of each thermal-arrest heat-conducting unit inserts, and 1 interior length is set on the water tank.In other words, shunt catheter 12 is that water inlet isocon by A conduit 14 and each thermal-arrest heat-conducting unit supports.Shunt catheter 12 can be metal tube or plastic tube.
In the utility model, water level controller 13 is installed on the sidewall in the water tank 11, water level controller 13 and inlet valve 15 UNICOMs, be used to control through inlet valve 15 enters water tank 11 in water level how much.Water level controller 13 is selected Xizi, a famous beauty in the late Spring and Autumn Period TMC-2 water-temperature water-level instrument for use.
Referring to shown in Figure 1, a plurality of thermal-arrest heat-conducting units of installing on the water tank 11 in the utility model adopt the layout that is arranged in parallel, as parallel placement between A thermal-arrest heat-conducting unit 5, B thermal-arrest heat-conducting unit 6, C thermal-arrest heat-conducting unit 7, the N thermal-arrest heat-conducting unit 8, and the clearance D of each thermal-arrest heat-conducting unit=1~15mm (is clearance D=1~15mm between A thermal-arrest heat-conducting unit 5 and the B thermal-arrest heat-conducting unit 6, clearance D=1~15mm between B thermal-arrest heat-conducting unit 6 and the C thermal-arrest heat-conducting unit 7, clearance D=1~15mm) between C thermal-arrest heat-conducting unit 7 and the N thermal-arrest heat-conducting unit 8.
The workflow of automatic desludging type solar water heater of the present utility model is:
(1) open inlet valve 15, cold water enters in the shunt catheter 12 through the A of water inlet conduit 14; And then inject water tank 11, when water level arrived predetermined water level, water level controller 13 control inlet valves 15 were closed into water;
(2) when solar radiation is to many vacuum heat collection pipes, the plated film in the vacuum heat collection pipe inner layer glass outside is a heat energy with the transform light energy more than 90%, owing to vacuumize between the vacuum heat collection pipe double glazing, top has location thermal resistance plug to stop heat to distribute again, causes the heat of vacuum heat collection pipe inside to be dispersed in the atmosphere and goes;
(3) heat that accumulates between vacuum heat collection pipe 1 interior pipe and the heat pipe 2 passes through the inner air convection current, and forms such as wire 23 heat conduction heat the water in the heat pipe 2;
(4) because of heat pipe 2 is communicated with water tank 11, the hot water in the heat pipe 2 from bottom to top, the cold water in the water tank 11 from top to bottom automatically thermal cycles make the water in the water tank 11 be recycled heating;
(5) hot water in the water tank 11 flows out and can use through flowing water Valve 17;
(6) when the water temperature in the water tank 11 reaches between 40~60 ℃, the crystallization of water mineral generates incrustation scale, and the part precipitation of scales is in heat pipe 2, and during water, last water pressure is gone out heat pipe 2 with incrustation scale on opening inlet valve 15 once more.Like this, incrustation scale can not deposit, and can not influence the heat conduction.