CN1837703A - Water-storing type water heater - Google Patents

Abstract

The invention relates to a mixed non-static pressure water heater, with long service life and central water supply function. It comprises a water bank, a heating element, a hot water tube, an overflow valve, a tap water tube and a water feeding tube. It is characterized in that: the inlet of outlet valve is connected to a connecting tube; a control valve for avoiding the water of connecting tube flowing into hot water tube is arranged between the connecting tube and the hot water tube; a water control expansion device is between the connecting tube and the tap water tube, whose inner chamber and the water feeding tube have a closed water feeding valve; the water bank and the overflow tube have a open overflow valve between them; the channel between the tap water tube and the water control expansion device has a inlet valve whose cut can be switched into open or micro-open states; the water feeding valve, overflow valve and the inlet valve are controlled by the expansion wall.

Description

The storage water heater

Technical field

The present invention relates to a kind of water heater, particularly a kind of storage water heater.

Background technology

In the closed storage water heater water system that existing family or hotel guest-room are used, comprise water tank, the water supply cold water pipe, safety valve, water outlet hot-water line and outlet valve, the cold water pipe that wherein supplies water connects water tank and running water pipe, the water outlet hot-water line connects water tank and outlet valve, fill hot water in the water tank, this hot water by the pyrogenicity element (as electrothermal tube, electromagnetic field eddy-current heating body---utilize the principle of electromagnetic stove, microwave generator---utilize the principle of micro-wave oven that water is heated, the reverse work of heat-pump-type heating---refrigeration system absorbs heat energy from air, solar thermal collector) heat temperature raising and getting; During normality, running water pipe, water tank, water outlet hot-water line, outlet valve (or mixed water valve) constitute an obturator, and the water outlet hot-water line can join to realize central water control with a plurality of outlet valves (or mixed water valve); Open outlet valve (or mixed water valve) during use, under the hydraulic pressure effect of the hot water in the water tank in running water pipe water is extruded through outlet valve; The rated operating pressure of national Specification closed electrical water heater water tank is 0.6MPa (for the high hydrostatic pressure of China's running water), the operating pressure of security settings is generally 0.7MPa, but when water heater heats, because of causing to press in the water tank to increase, the rising of water temperature opens pressure release up to safety valve, so, closed water heater's water tank in fact long-term work under the high pressure of 0.7MPa; Therefore, though this closed water heater can realize remote central water control, but, because water tank bears high temperature, high pressure for a long time, water tank is thicker with material, the cost height, metal water tank under the HTHP effect very easily by corrosion, thereby shortened its life-span, so the shortcoming of existing this water heater is that the water tank life-span is short.And existing open-type water heater cost is low, the life-span is long, but can not realize that central authorities supply water.The problems referred to above in view of existing water heater existence, in the Chinese patent bulletin CN2428724Y of bulletin on May 2 calendar year 2001, a kind of " the low pressure sealing courage body electric heater of valve controlled type " disclosed, on the courage body diapire of this electric heater the water inlet interface is set respectively, water outlet interface and blowdown interface, at water inlet interface polyphone a magnetic valve and a pressure switch are set, at check valve of water outlet interface peripheral hardware and magnetic valve, establish an overflow pipe in the courage body, the blowdown interface is provided with a magnetic valve, on off state by the control magnetic valve, guarantee that the courage body can be communicated with atmosphere all the time, thereby realization courage body is worked under low-pressure state, is actually a kind of open-type water heater of electromagnetism valve controlled type; This electric heater has used a plurality of electromagnetic switching valves to realize switching (its switching power is electromagnet) between courage bodies and entery and delivery port, the atmosphere, its shortcoming is: complex structure, reliability be low, can not use hot water when having a power failure, and in the moment of closing water intaking valve, water tank bears the pressure of running water equally, and the cost height.

Summary of the invention

The objective of the invention is for solve exist in the problem that cost height, life-span are short, reliability is low that exists in the existing closed storage water heater or the existing open-type water heater can not realize the problem that central authorities supply water, and provide a kind of simple in structure, easy to use, storage water heater that the life-span is long.

Technical scheme:

The objective of the invention is this realization: a kind of storage water heater, comprise water tank, the pyrogenicity element, hot-water line, outlet valve, running water pipe and feed pipe, wherein feed pipe is supplied cold water to water tank, hot-water line is drawn hot water in water tank, the pyrogenicity element can be an electrothermal tube, electromagnetic field eddy-current heating body, microwave generator, the heat-pump-type heating, solar thermal collector, the water inlet that it is characterized in that outlet valve is connected to connecting leg, be connected to the by-pass valve control that prevents the current direction hot-water line in the connecting leg between connecting leg and the hot-water line outlet, be connected to the water control expansion gear between connecting leg and the running water pipe, be connected to normally closed water supply valve between the inner chamber of water control expansion gear and the feed pipe, if when not having the controllable valve that is arranged on the passage of water control expansion gear inner chamber between connecting leg cited below herein, then because connecting leg communicates with the water control expansion gear, so normally closed water supply valve also can be arranged between connecting leg and the feed pipe; Be connected to the spilling water valve of often opening between water tank and the overflow pipe, the peak of the spilling water passage that spilling water valve and overflow pipe constitute is close to or higher than the peak of water tank (for the ease of installing, the spilling water valve can be connected between feed pipe and the overflow pipe, and at this moment the peak of the spilling water passage that constitutes between feed pipe, spilling water valve, the overflow pipe is close to or higher than the peak of water tank); Running water pipe is provided with inlet valve to the passage of water control expansion gear, and the opening of this inlet valve is divided into open mode section and crack state section; Described water supply valve, spilling water valve and inlet valve are controlled by the expansion wall of described water control expansion gear, and switch moment in the action of water supply valve and spilling water valve, and inlet valve is in crack state section.During normality, inlet valve is in crack state section or closed condition, if inlet valve is in crack state section during normality, then the withstand voltage of water control expansion gear must be greater than the maximum pressure value of running water, inlet valve is in the flow of inlet water of open mode section greater than crack state section, and, the reset force of expansion wall can be thought steady state value, when the pressure in the water control expansion gear increases, the opening of expansion wall control inlet valve reduces, on the contrary the opening increase of control inlet valve, so, when inlet valve enters the open mode section, the hydraulic pressure in the water control expansion gear by constant in a certain pressure limit.Water control expansion gear herein can be a prior art, also discloses a kind of " bellows-type expander " in October 4 nineteen ninety-five among the disclosed Chinese patent bulletin CN2209380Y, is actually an expansion gear; Expansion wall wherein of the present invention is meant a wherein wall of water control expansion gear, during this wall motion the volume of water control expansion gear is changed.Certainly, because connecting leg communicates with the water control expansion gear, so water supply valve also can be connected between the inner chamber of feed pipe and water control expansion gear.Water supply valve herein also can be arranged between running water pipe and the feed pipe (water tank), and just its water tank hydraulic pressure effect of being depressurized constant voltage is relatively poor, is a kind of bad technical scheme that becomes.

Described storage water heater, it is characterized in that described inlet valve is made of valve seat, stator and moving plate, through hole one side of stator is provided with pervious seam, be described crack state section after the through hole that intake chamber on the moving plate is crossed stator strides into pervious seam, the cross section of this pervious seam is much smaller than the cross section of stator through hole.

Described storage water heater is characterized in that described water supply valve and spilling water valve are integrated in the same transfer valve.Certainly, inlet valve, by-pass valve control also can be integrated in this transfer valve.

Described storage water heater is characterized in that described by-pass valve control is a check valve.The action of check valve is controlled by hydraulic pressure.

Described storage water heater is characterized in that described by-pass valve control is a normally closed stop valve, and this stop valve is controlled by the expansion wall of described water control expansion gear, and switches moment in the action of stop valve, and inlet valve is in crack state section.Certainly this shutoff valve also can be integrated in the above-mentioned transfer valve.

Described storage water heater is characterized in that described water control expansion gear inner chamber is provided with controllable valve to the passage between the connecting leg, and this controllable valve is controlled by described expansion wall.At this moment, normally closed water supply valve must be arranged between water control expansion gear inner chamber and the feed pipe and can not be arranged between connecting leg and the feed pipe.

Described storage water heater is characterized in that described water control expansion gear connects connecting leg by apopore, and this apopore and the slide block that is positioned at water control expansion gear inner chamber or centering block or the block that links to each other with the expansion wall of water control expansion gear constitute described controllable valve.Be that described controllable valve can be made of this apopore and the slide block that is positioned at water control expansion gear inner chamber, also can constitute, also can constitute by the block that this apopore links to each other with expansion wall with the water control expansion gear by this apopore and the centering block that is positioned at water control expansion gear inner chamber.

Described storage water heater is characterized in that described outlet valve is a mixed water valve, and described connecting leg connects the cooling water inlet that mixes water valve, and the outlet of described hot-water line connects the hot water inlet that mixes water valve, and the hot-water valve that mixes in the water valve is described by-pass valve control.In fact, existing mixed water valve integrates by-pass valve control and outlet valve, and the control lever that the action of hot-water valve is subjected to mix water valve is controlled.When mixed water valve adopts this connection, also should not be in water control expansion gear inner chamber and to the passage between the connecting leg, controllable valve is set.

Described storage water heater is characterized in that described water tank is provided with pressure switch, and described heating device is electric heating device, and this pressure switch is controlled the power supply of electric heating device and is the power supply that the operating state of pressure switch cuts off electric heating device.The effect of pressure switch is that water tank is blasted when preventing that abnormal conditions from appearring in water heater, return that the spilling water valve of often opening in the process of holding state can not reset or during the spilling water channel jam as water heater, in case electric heating device heats the water in the water tank, then the expansion because of water makes the pressure switch action to cut off the power supply of electric heating device; Under the abnormal conditions that temperature controller can not disconnect, the effect of pressure switch is more remarkable, because in case temperature controller can not disconnect the power supply of electric heating device when the spilling water channel jam, then water temperature may surpass 100, if this moment, explosion appearred in water tank, then the water tank possibility of blasting improves greatly.

Described storage water heater, the operating pressure scope that it is characterized in that described pressure switch at 0.0001MPa between the 0.3MPa.0.0001MPa0.0002MPa0.0003MPa0.0004MPa0.0005MPa0.0006MPa0.0007MPa0.0008MPa0.0009MPa0.001MPa0.002MPa0.003MPa0.004MPa0.005MPa0.006MPa0.007MPa0.008MPa0.009MPa0.01MPa0.02MPa0.03MPa0.04MPa0.05MPa0.06MPa0.07MPa0.08MPa0.09MPa0.1MPa0.11MP0.12MPa0.13MPa0.14MPa0.15MPa0.16MPa0.17MPa0.18MPa0.19MPa0.2MPa0.21MP0.22MPa0.23MPa0.24MPa0.25MPa0.26MPa0.27MPa0.28MPa0.29MPa0.3MPa。

Described storage water heater is characterized in that described water supply valve, spilling water valve return normality by back-moving spring.The expansion wall of water control expansion gear and back-moving spring are realized control to water supply valve, spilling water valve jointly.

Described storage water heater is characterized in that described water control expansion gear is made of valve body and piston, is provided with compression spring between piston and the valve body and makes piston be subjected to inside pressure, is provided with sealing ring between piston and the body cavity, and this piston is described expansion wall.The cross section of sealing ring is " U " shape, and opening is to body cavity.

Described storage water heater is characterized in that being provided with on the described water control expansion gear limited block that limits its expansion wall outermost displacement.Be in crack state section during the inlet valve normality, the effect of limited block is to make the water control expansion gear have enough withstand voltages (greater than the maximum hydraulic pressure of running water).

Described storage water heater, it is characterized in that placing in the described water control expansion gear piece that blocks water, the water inlet of piece and water control expansion gear of blocking water constitutes described inlet valve, when the piece that blocks water moved to the water inlet that shelters from the water control expansion gear, the gap between the water inlet of block water piece and water control expansion gear constituted the crack state section of described inlet valve.

When using hot water, open outlet valve, pressure in the water control expansion gear descends, the water control expansion gear shrinks, expansion wall moves inward under the reset force effect, when expansion wall control inlet valve also is in crack state section, the mobile spilling water valve that makes of expansion wall, the water supply valve action, it is the spilling water valve closing, water supply valve is opened (if when by-pass valve control is stop valve, then open stop valve simultaneously), then, inlet valve enters the hydraulic pressure of open mode with balance water control expansion gear and water-heater water tank, water heater enters user mode, and the water in the running water pipe is through the water control expansion gear, connecting leg, water supply valve, feed pipe enters water tank, makes the interior flow of hot water of water tank through hot-water line, join after outlet valve flows out behind the by-pass valve control with from the cold water of connecting leg; When using hot water, close outlet valve, hydraulic pressure in the water control expansion gear rises its expansion wall is outwards moved, inlet valve enters crack state from open mode, water supply valve, spilling water valve (by-pass valve control) resets, be that water supply valve is closed, spilling water valve open (by-pass valve control is closed), then, if inlet valve is a stop valve, then inlet valve enters closed condition from crack state, if inlet valve is not a stop valve, then expansion wall is subjected to limited block spacing, and inlet valve maintains crack state, at this moment, the interior hydraulic pressure of hydraulic pressure in the water control expansion gear and running water pipe is identical, but the water in the water control expansion gear can not communicate with water tank, but is subjected to the effect of water control expansion gear reset force and maintains certain interior pressure, and water heater enters holding state---normality, space in the water tank communicates with overflow pipe by the spilling water valve, water tank is communicated with atmosphere and is in the open type state.Wherein the crack state section of inlet valve is mainly used in and guarantees that expansion wall has the action of enough displacement control spilling water valve, feed water valve and control valve.

When realizing that central authorities supply water,, then only need on connecting leg, to connect several taps and get final product if outlet valve is a tap, if outlet valve is for mixing water valve, then can many outer water valves that mix directly in parallel.

Described storage water heater is characterized in that also being connected on the described connecting leg normally closed emptying valve, and this emptying valve is controlled by the expansion wall of described water control expansion gear.If water heater enters the process of holding state from user mode; because of being blocked by impurity, water supply valve etc. can not open the spilling water valve; then press in the water control expansion gear and continue to increase, expansion wall control emptying valve is opened outside sluicing with the protection water tank, is a supplementary structure.

Described storage water heater is characterized in that described emptying valve is one and opens the time-delay closing valve soon.Enter the process of holding state from user mode as water heater, water supply valve and can not open the spilling water valve, then press in the water control expansion gear and continue to increase, expansion wall control emptying valve is opened a period of time, make water heater enter in short-term user mode automatically, water supply valve and inlet valve reopen and impurity are washed away.

Beneficial effect:

Owing to adopted technical solutions according to the invention, described storage water heater is when outlet valve is closed, water tank communicates with atmosphere and is obstructed with running water pipe, only when its water outlet, water tank just communicates with running water pipe, water tank only bears the dynamic water-pressure much smaller than 0.7Mpa, and this dynamic water-pressure can also be depressurized constant voltage, even the hydraulic pressure of running water pipe can be delivered in the water tank in the moment of closing outlet valve yet, so water tank becomes pressure-bearing duty in short-term by original long-term pressure-bearing duty, and this pressure-bearing value is low, can reduce the withstand voltage standard of water tank, thereby reduce the water tank wall thickness and save cost and resource, water tank, is difficult for by corrosion at high pressure conditions without long-term work, prolong the service life of water tank, improve its security performance; Though this storage water heater is the open type state when not water outlet, can realize that equally central authorities supply water, so, long, safety of life-span not only, and easy to use, simple in structure.

Description of drawings

The invention will be further described below in conjunction with drawings and Examples.

Fig. 1 is the syndeton and the control principle schematic diagram of one embodiment of the invention.

Fig. 2 is the internal structure enlarged diagram of water control expansion gear among Fig. 1 embodiment.

Fig. 3 is the view of water control expansion gear when water heater is in user mode among Fig. 2.

Fig. 4 is the outward appearance enlarged drawing of transfer valve 4 interior stators among Fig. 2.

Fig. 5 is the outward appearance enlarged drawing of transfer valve 4 interior moving plates among Fig. 2.

Fig. 6 is the syndeton and the control principle schematic diagram of another embodiment of the present invention.

Fig. 7 is the syndeton and the control principle schematic diagram of further embodiment of this invention.

Fig. 8 is the syndeton and the control principle schematic diagram of further embodiment of this invention.

The internal structure enlarged diagram of water control expansion gear among Fig. 9 Fig. 8 embodiment.

Figure 10 is the outward appearance enlarged drawing of the stator of transfer valve 04 among Fig. 9.

Figure 11 is the outward appearance enlarged drawing of the moving plate of transfer valve 04 among Fig. 9.

Figure 12 is the syndeton and the control principle schematic diagram of further embodiment of this invention.

Figure 13 is the internal structure enlarged diagram with the water control expansion gear of Figure 12.

Figure 14 is the outward appearance enlarged drawing of a structure of the interior stator of transfer valve among Figure 13.

To be the dotted line 400,500 of representing intake chamber, supply flume among Figure 14 rotate schematic diagram after the angle with moving plate to Figure 15.

Figure 16 is syndeton and the control principle schematic diagram of another embodiment of the present invention

Figure 17 is the internal structure enlarged drawing of water control expansion gear among Figure 16.

The internal structure enlarged drawing of pressure switch among Figure 18 Figure 16.

Description of symbols among the figure: 91,091,0091, water tank, 911,0911,00911, hot-water line, 921,0921,00921, outlet pipe, 92,092,0092, mix water valve, 901,0901,00901, connecting leg, 84,0084, emptying valve, 811,00811, running water pipe, 81, water intaking valve, 90, water control expansion gear, 83,083,0083, the spilling water valve, 831,0831,00831, overflow pipe, 821,0821,00821, feed pipe, 82,082,0082, water supply valve; 701, one-way damper valve, 7, the damping seat, 72, power spring, 71, damper rod, 711, breach, 63, spring base, 62, spring, 33, push rod, 2,02, support, 34,034, compression spring, 3,03, piston, 1,01, valve body, 32,032, the front portion, 10,010, expansion chamber, 11,011, apopore, 13,013, interface, 12,012, the inlet opening, 5,05, piece blocks water, 51,051, back-moving spring, 14,014, the guide and limit piece, 41,041, changer lever, 4,04, transfer valve, 311,0311, pressure head, 65, arm, 312,0312, planing surface, 31,031, control lever, 61, switch lever, 64, tapping pipe; 48, stator, 482,481,483,484,485, through hole; 49, moving plate, 491, supply flume, 492, intake chamber; 910, check valve, 920, outlet valve, 9011, the junction, 9100, stop valve, 99, hot-water line, 099, pipe, 009, the junction; 4850, through hole, 4851, pervious seam; 80, water control expansion gear, 800, running water pipe, 020, limited block, 400,500, dotted line, 4810,4820,4830,4840, through hole; 148, stator, 1481,1482,1483, through hole, 149, moving plate, 1491 supply flumes, 990, the water control expansion gear, 881, inlet valve; 071, water tank, 074, pressure switch, 0711, hot-water line, 075, check valve, 077, flow pipe, 070, mix water valve, 0700, outlet pipe, 0701, arm, 0702, connecting leg, 07, running water pipe, 076, water control expansion gear, 072, water supply valve, 0721, feed pipe, 073, spilling water valve, 0730, overflow pipe; 061, valve body, 062, change gear, 064, outlet, 063, the piece that blocks water, 065, interface, 068, apopore, 0672, shifting block, 0673, slide block, 0671, control lever, 067, piston; 0061, valve body, 0062, piston, 0063, spring, 0064, travel switch, 0065, push rod, 0066, spilled water hole, 0067, interface.

The specific embodiment:

Embodiment one, see Fig. 1, described storage water heater, comprise water tank 91, pyrogenicity element (not drawing among the figure), hot-water line 911, mix water valve 92, overflow pipe 831, running water pipe 811 and feed pipe 821, the hot water inlet that mixes water valve 92 connects hot-water line 911, cooling water inlet and manages 901 in succession, with mixing the hot-water valve that is arranged in the water valve 92 between hot-water line 911 and the outlet pipe 921 as by-pass valve control, water receiving control expansion gear 90 and water intaking valve 81 between connecting leg 901 and the running water pipe 811 connect normally closed water supply valve 82 between connecting leg 901 and the feed pipe 821; Connect the spilling water valve of often opening 83 between feed pipe 821 and the overflow pipe 831; Chain-dotted line between water control expansion gear 90 and spilling water valve 83, water supply valve 82, emptying valve 84, the water intaking valve 81 is used to represent that the switch lever of spilling water valve 83, water supply valve 82, emptying valve 84, water intaking valve 81 and the expansion wall of water control expansion gear link (following each embodiment too); In fact spilling water valve 83, water supply valve 82 and water intaking valve 81 are (the seeing Fig. 2, Fig. 4 and Fig. 5 and the following description) that are integrated in the transfer valve, and Fig. 1 just independently represents the three for the ease of understanding, is a schematic diagram; The cut-away view of water control expansion gear 90 as shown in Figure 2, constitute by valve body 1, compression spring 34 with as the piston 3 of expansion wall, constitute expansion chamber 10 between body cavity and the piston, the apopore 11 of valve body manages 901 in succession, normally closed water intaking valve 81 be connected on 13 and running water pipe 811 (Fig. 1) between, expansion chamber 10 is connected to emptying valve 84 by arm 65, and the switch lever 61 of emptying valve stretches in the breach 711 of damper rod 71 of damping unit; The inlet valve that piece 5, inlet opening 12 and back-moving spring 51 constitute (below be defined as " inlet valve A ") that blocks water is arranged on water intaking valve 81 (be among Fig. 1 water intaking valve 81 be serially connected between running water pipe 811 and the inlet valve A) to the passage of water control expansion gear 91.

Water supply valve 82 among Fig. 1, spilling water valve 83 and water intaking valve 81 are integrated in the transfer valve 4 among Fig. 2, and transfer valve 4 is provided with back-moving spring (not drawing among the figure) makes it return normality shown in Figure 2; Feed pipe 821 in through hole 481 map interlinkings 1 in the stator 48 of transfer valve shown in Figure 4, the overflow pipe 831 in through hole 482 map interlinkings 1, the connecting leg 901 in through hole 483 map interlinkings 1, through hole 484 by the interface in the map interlinking 2 13 after inlet opening 12 communicates with expansion chamber 10, the running water pipe 811 in through hole 485 map interlinkings 1; The moving plate 49 of the transfer valve among Fig. 5 is provided with intake chamber 492 and supply flume 491 towards stator 48 1 sides, the through hole 481 in intake chamber 492 in the moving plate and the through hole 484 in the stator and the water intaking valve 81 in 485 pie graphs 1, supply flume 491 and the stator and through hole 481 in the spilling water valve 83 in 482 pie graphs 1, supply flume 491 and the stator and the water supply valve 82 in through hole 483 pie graphs 1; In the present embodiment, 81 of water intaking valves among the intake chamber 492 of moving plate and the through hole 484 in the stator and 485 Fig. 1 that constitute have open mode section and closed condition, do not have crack state section.

When using hot water, open the mixed water valve 92 among Fig. 1, water among Fig. 2 in the expansion chamber 10 under the effect of compression spring 34 and piston 3 through apopore 11, connecting leg 901 among Fig. 1, mix the cooling water inlet of water valve 92, outlet pipe 921 flows out, simultaneously, the control lever 31 (Fig. 2) that links to each other with piston moves down, pressure head 311 overcomes the power of the back-moving spring on the changer lever 41 of transfer valve 4 and transfer valve is switched to another duty (during in conjunction with Fig. 4 and Fig. 5, clockwise rotate with respect to the moving plate among Fig. 5 49 and to make intake chamber 492 earlier across between through hole 484 and 485---be that water intaking valve 81 is opened, make supply flume 491 across between through hole 481 and 483 again---be that spilling water valve 83 is closed and water supply valve 82 is opened), the roller of changer lever 41 ends is pressed on the planing surface 312 of control lever (shown in Figure 3), at this moment, piece 5 is positioned at 12 places, inlet opening because of blocking water, through running water pipe 811, the water that water intaking valve 81 enters in the inlet opening 12 can only enter in the expansion chamber 10 by the minim gap through blocking water between piece 5 and the inlet opening 12, its flow is very little (less than mixing the water valve water yield of 92 this moments, be to use the relation that blocks water between piece 5 and the inlet opening 12 to realize the crack state of inlet valve in the present embodiment), inlet valve A is (promptly by the piece 5 that blocks water, the inlet valve that inlet opening 12 and back-moving spring 51 constitutes) enters and also be in crack state section, the water control expansion gear continues to shrink, piston 3 continues to move down the piece 5 that will block water up to control lever front portion 32 and pushes to down under compression spring 34 effect, the opening that blocks water between piece 5 and the inlet opening 12 increases, inlet valve A is (promptly by the piece 5 that blocks water, the inlet valve that inlet opening 12 and back-moving spring 51 constitute) enters open mode, the water control expansion gear enters the decompression pressure constant state, as shown in Figure 3, water heater enters user mode, running water in the running water pipe 811 is through the water intaking valve 81 (through hole 485 in Fig. 4 stator, intake chamber 492 in Fig. 5 moving plate, through hole 484 in Fig. 4 stator), interface 13, inlet opening 12, expansion chamber 10, after apopore 11 enters connecting leg 901, be divided into two branch roads, one tunnel cooling water inlet for the mixed water valve 92 of warp enters the cold water branch road that mixes in the water valve, another Lu Weijing water supply valve 82 (through hole 483 of stator among Fig. 4, the supply flume 491 of moving plate among Fig. 5, the through hole 481 of stator among Fig. 4), feed pipe 821, water tank 91, hot-water line 911, the hot water inlet that mixes water valve 92 enters the hot water branch road that mixes in the water valve 92, and is cold, the mixing in mixing water valve of hot water branch road becomes warm water after outlet pipe 921 flows out; When using hot water, close and mix water valve 92, hydraulic pressure in the expansion chamber 10 rises piston 3 is moved up, separate with the piece 5 that blocks water the front portion 32 of control lever, the piece 5 that blocks water blocks inlet opening 12 under the effect of back-moving spring 51 again, the minim gap of water in the inlet opening through blocking water between piece and the inlet opening supplies water in expansion chamber 10, inlet valve A returns crack state section, make piston 3 be continued to move up, on the planing surface 312 of the roller of changer lever 41 front ends from the control lever landing and under its action of reset spring normality reset to state shown in Figure 2, in conjunction with Fig. 4 and Fig. 5, have only supply flume 491 on the moving plate across making feed pipe 821 be communicated with (being that spilling water valve 83 is opened) with overflow pipe 831 between through hole 481 and 482 this moment, through hole 483 and through hole 481 obstructed (water supply valve 82 is closed), through hole 484 and through hole 485 obstructed (water intaking valve 81 is closed), certainly, it is to close water supply valve 82 in proper order, open spilling water valve 83 and close water intaking valve 81 again; But in transfer valve 4 reseting procedures, when having impurity to be stuck between the supply flume 491 of the through hole 483 of stator and moving plate, changer lever 41 can not reset, also do not communicate between overflow pipe and the feed pipe, intake chamber 492 is also across (being that water intaking valve 81 also is in open mode) between through hole 484 and 485, hydraulic pressure in the expansion chamber 10 continues to increase, piston 3 continues to move up on Fig. 2 basis, up to the push rod 33 that links to each other with piston 3 damper rod 71 is upwards pushed up the stable critical line that switch lever 61 is crossed switch lever 61 and stabilizing spring 62 formations, after stabilizing spring pushes to make switch lever 61 to state that emptying valve 84 opens, water in the expansion chamber is through emptying valve 84, tapping pipe 64 flows out, piston 3 moves down, though the multiple effect of the dynamic spring 72 of damper rod this moment, but, effect because of the one-way damper valve on the damping seat 7 701, damper rod 71 can only slowly move down and can not switch lever 61 be resetted at once, also be that emptying valve 84 can be delayed time and just is closed after a period of time, in this section delay time, piston is controlled transfer valve again and is entered duty, and the impurity that is stuck between through hole 483 and the supply flume 491 is washed away.In the present embodiment, block water piece 5 when Fig. 3 state returns Fig. 2 state, also can not influence the function of water control expansion gear between the piece 5 if having impurity to be stuck in inlet opening 12 and block water, so this structure also has the effect of anti-impurity.With hot water or cold water's interface of a plurality of mixed water valves manage 901 respectively in succession, hot-water line 911 can realize that central authorities supply water.In the present embodiment, omitted emptying valve 84 and water intaking valve 81 (be not omit inlet valve), can realize purpose of the present invention equally, just at this moment, water control expansion gear 90 must have enough withstand voltage.

Among the embodiment one,, and on the passage of hot-water line 911, add the check valve that flows to electronic mixed water valve direction, also can on outlet pipe 921, connect a plurality of outlet valves, realize that central authorities supply water if change common mixed water valve into electronic mixed water valve.

Embodiment two, Fig. 6 is the syndeton and the control principle schematic diagram of present embodiment, the difference of embodiment two and embodiment one only is the mixed water valve among the embodiment one is changed into the outlet valve 920 of faucet mounted, between outlet valve 920 and hot-water line 99, use check valve 910 instead as by-pass valve control, and the junction between connecting leg and the outlet valve 9011 is used less caliber instead, all the other are identical with Fig. 1's, and adopt the water control expansion gear of structure shown in Figure 2, the structure that stator in the transfer valve and moving plate structure also adopt Fig. 4 and Fig. 5 respectively, junction 9011 adopts the reason of less caliber to be herein, after preventing that outlet valve 920 from opening, water in the connecting leg all flows away and the hot water in the water tank can not be ejected through outlet valve, and its operation principle and embodiment's one is similar.Certainly, if 9011 add the leaving water temperature that electronic temperature-sensitive mixes water valve control tap with pipe 099 place in the junction, then the pipe of big caliber can be adopted in junction 9011.Tap can realize that central authorities supply water outside how pipe 099 place connects.

Embodiment three, see Fig. 7, embodiment three only is to change the check valve of Fig. 6 into stop valve normally closed among Fig. 7 9100 as by-pass valve control with the difference of embodiment two, stop valve 9100 is controlled by the expansion wall in the water control expansion gear, in like manner, stop valve 9100 also can be integrated in the transfer valve with spilling water valve, water supply valve etc.Its operation principle and the foregoing description are similar, do not do to state at this more.

Embodiment four, see the syndeton of Fig. 8 and the water control expansion gear figure of control principle schematic diagram and Fig. 9, and present embodiment is to change from the embodiment of Fig. 1 to form, and has omitted the time-delay damping mechanism among the water intaking valve 81 among Fig. 1, emptying valve 84 and Fig. 2.In the water control expansion gear, limited block is set, the position of limited block is seen shown in Figure 9, on the support 02 on valve body 01 top, stretch out the extreme higher position of limited block 020 qualification piston 03, inlet opening 012 among Fig. 9 in the valve body 01, the piece 05 that blocks water together constitute inlet valve (being defined as " inlet valve B ") with back-moving spring 051, and the state of this inlet valve B is divided into open mode section and crack state section.

Water control expansion gear among Fig. 9 is in holding state, running water pipe 800 in interface 013 map interlinking 8, spilling water valve 083 among Fig. 8 and water supply valve 082 are integrated in the transfer valve 04 of Fig. 9, the stator 148 of transfer valve 04 (is actually through hole among Fig. 4 484 and 485 deletions is got final product) as shown in figure 10, moving plate 149 (is actually 492 deletions of the intake chamber among Fig. 5 is got final product) as shown in figure 11, feed pipe 0821 in through hole 1481 map interlinkings 8 in the stator 148 of transfer valve 04, overflow pipe 0831 in through hole 1482 map interlinkings 8, connecting leg 0901 in through hole 1483 map interlinkings 8, the moving plate 149 of transfer valve is provided with supply flume 1491 towards stator 148 1 sides, and supply flume 1491 and the through hole 1481 in the stator and 1482 in the moving plate constitute the spilling water valves, through hole 1481 in supply flume 1491 and the stator and through hole 1483 constitute water supply valves.

Operation principle: in conjunction with Fig. 8, Fig. 9, Figure 10 and Figure 11, open and mix water valve 092, water in the expansion chamber 010 is through apopore 011, connecting leg 0901, mixing water valve 092 flows out, hydraulic pressure in the expansion chamber 010 descends, piston 03 moves down under the effect of compression spring 034, the pressure head 0311 of control lever 031 is depressed the changer lever 041 of transfer valve 04, transfer valve 04 change action, moving plate 149 clockwise rotates with respect to stator 148, (open by spilling water valve 083 from the state that is communicated with through hole 1481 and 1482 for supply flume 1491, water supply valve 082 is closed) (spilling water valve 083 is closed to switch to the state that is communicated with through hole 1481 and 1483, water supply valve 082 is opened), also keep off in the inlet opening 012 outlet this moment because of the piece 05 that blocks water, running water can only enter in the expansion chamber 010 in the gap through blocking water between piece 05 and the inlet opening 012, promptly by the piece 05 that blocks water, the inlet valve (inlet valve B) that back-moving spring 051 and inlet opening 012 constitute also is in crack state, so piston 03 can continue to move down, the piece 05 that will block water up to control lever front portion 032 pushes away downwards the piece 05 that blocks water is separated with inlet opening 012, by the piece 05 that blocks water, the inlet valve that back-moving spring 051 and inlet opening 012 constitute enters open mode and the hydraulic pressure in the expansion chamber 010 is played the balance and stability effect, water heater enters user mode, 012 enters expansion chamber 010 through the inlet opening, water one tunnel in the connecting leg 0901 directly enters the cooling water inlet that mixes water valve 092, and another road (is the through hole 1483 on the stator 148 through water supply valve 082, supply flume 1491 on the moving plate 149, through hole 1481 on the stator), feed pipe 0821 enters water tank 091 and the hot water in the water tank 091 is pressed into the hot water inlet that mixes water valve 092 through hot-water line 0911 and flows out through outlet pipe 0921 from becoming warm water after the cold water mix of mixing the water valve cooling water inlet; After using hot water, close and mix water valve 092, press liter in the expansion chamber 010, piston 03 moves under the hydraulic pressure effect, separate with the piece 05 that blocks water the front portion 032 of control lever, the piece 05 that blocks water shelters from inlet opening 012 fully, the gap that running water continues through blocking water between piece 05 and the inlet opening 012 enters in the expansion chamber 010, just the flow of this moment is less, promptly by the piece 05 that blocks water, the inlet valve that back-moving spring 051 and inlet opening 012 constitute enters crack state, piston 03 can continue to move up under the hydraulic pressure effect, changer lever 041 resets under back-moving spring (not drawing among the figure) effect, water supply valve 082 is closed, spilling water valve 083 is opened (be among Figure 11 supply flume 1491 across between through hole 1481 and 1482), piston 03 move on to always limited 020 spacing till (state shown in Figure 9), water heater reenters holding state, at this moment, gapped between piece 05 and the inlet opening 012 though block water, but because of 03 limited 020 in piston spacing, so, water in the expansion chamber 010 can not increase yet, and water heater enters holding state.With hot water or cold water's import of a plurality of mixed water valves manage 0901 respectively in succession, hot-water line 0911 can realize that central authorities supply water.In the present embodiment, in order to prevent that the supply flume 1491 among Figure 11 from switching to block the process that is communicated with through hole 1481 and 1483 impurity is arranged from being communicated with through hole 1481 and 1482 between through hole 1482 and supply flume 1491, can change through hole 1481,1482, relative position between 1483, make the handoff procedure of supply flume 1491 increase changeover portion, this changeover portion is: partly stride through hole 1482, stride through hole 1481 entirely, partly stride through hole 1483, if free from admixture blocks, then moving plate supply flume 1491 under piston action can slide between through hole 1481 and 1483 from through hole 1481 and 1482 fast, and wherein sub-fraction water flows out through overflow pipe; If there is impurity to block through hole 1482 and supply flume 1491, the water that then block water in Fig. 9 piece 05 and inlet opening 012 enter can flow out through spilling water valve, overflow pipe, thereby guarantees that water tank is not subjected to the influence of hydraulic pressure from the beginning.

Embodiment five, Figure 12 is the syndeton and the control principle figure of present embodiment, (see Figure 13 with block water piece 5 and back-moving spring 51 that the difference of embodiment one has been to remove in Fig. 2 water control expansion gear, identical among its figure among mark and Fig. 2), simultaneously, the stator of transfer valve adopts structure shown in Figure 14 in the water control expansion gear, and the moving plate structure is identical with Fig. 5's.Also that promptly relevant with embodiment five is Figure 12, Figure 13, Figure 14 and Fig. 5.

Inlet valve 881 among Figure 12, spilling water valve 83, water supply valve 82 are integrated in the transfer valve 4 among Figure 13.

Shown in Figure 14, feed pipe 821 in through hole 4810 map interlinkings 12 in the stator of transfer valve, the overflow pipe 831 in through hole 4820 map interlinkings 12, the connecting leg 901 in through hole 4830 map interlinkings 12, through hole 4840 by the interface in the map interlinking 13 13 communicate with expansion chamber 10,811, two groups of dotted lines of running water pipe 400,500 in through hole 4850 map interlinkings 12 represent respectively water heater when the holding state intake chamber 492 on the moving plate shown in Figure 5 and supply flume 491 with respect to stator on the position of each through hole; Supply flume 491 in supply flume 491 in Fig. 5 moving plate and the through hole 4810 in Figure 14 stator and 4820 formation spilling water valves 83, Fig. 5 moving plate and the through hole 4810 in Figure 14 stator and through hole 4830 constitute intake chamber 492 and through hole 4840 in Figure 14 stator and the 4850 formation inlet valves 881 in water supply valves 82, Fig. 5 moving plate; Through hole 4850 left sides in Figure 14 stator are provided with pervious seam 4851, thereby make the intake chamber 492 in Fig. 5 moving plate have open mode section, crack state section and three kinds of states of closed condition with through hole 4840 and 4850 inlet valves 881 that constitute in Figure 14 stator.

The relative position schematic diagram of the stator of transfer valve 4 and moving plate among Figure 13 when Figure 14 shows that holding state, the dotted line 400 of representative graph 5 intake chambers 492 is just crossed pervious seam 4851 among Figure 14, through hole 4840 does not communicate with 4850, inlet valve 881 is closed fully, and the dotted line 500 of representative graph 5 supply flumes 491 is across between through hole 4810 and 4820, spilling water valve 83 is opened, water supply valve 82 is closed, this moment is as opening the mixed water valve 92 among Figure 12, piston 3 among Figure 13 drives the transfer valve action, intake chamber on the moving plate and supply flume clockwise rotate state shown in Figure 15, the through hole 4850 interior water that connect running water pipe can only enter intake chamber (dotted line 400 among Figure 15) through narrower pervious seam 4851, and supply flume (dotted line 500 among Figure 15) is across between through hole 4810 and 4830, being equivalent to spilling water valve 83 closes, water supply valve 82 is opened, the action switching moment inlet valve that is spilling water valve and water supply valve is in crack state section, press in the expansion chamber 10 among Figure 13 and continue to descend, the moving plate that piston 3 continues drive state shown in Figure 15 clockwise rotates, then represent the dotted line 400 of intake chamber will be across between through hole 4850 and 4840, be that water intaking valve enters open mode, the dotted line 500 of representing supply flume is still across between through hole 4810 and 4830, water heater enters user mode, and its water route and the various embodiments described above are similar.When using hot water, close and mix water valve 92, course of action is opposite, moving plate turns back to state shown in Figure 15 counterclockwise in the transfer valve, make inlet valve 881 return crack state section again, because of the dotted line 400 of representing intake chamber among Figure 15 bounces back also only across between through hole 4840 and the pervious seam 4851 from through hole 4850, inlet valve also is in crack state section, moving plate continues to rotate counterclockwise, withdraw from pervious seam 4851 (inlet valve is closed) fully before at the dotted line 400 of representing intake chamber, the dotted line 500 of representing supply flume is from across through hole 4810, (water supply valve is opened between 4830, the spilling water valve closing) switches to across through hole 4810, (water supply valve is closed between 4820, the spilling water valve open), promptly return state shown in Figure 14, water heater returns holding state.

More small-bore pipeline must be used in the junction 9011 that connects outlet valve among Fig. 6, because if the bore of this junction 9011 is excessive, then may cause through the water route of water supply valve inflow water tank and be connected place's 9011 short circuits, make the interior water of running water pipe directly through the water control expansion gear, connecting leg, junction 9011 and outlet valve flow out and without water tank, if but the bore of junction 9011 is too small, then may because the flow of inlet valve when crack state section piston can not move inward greater than the flow of junction 9011, the transfer valve akinesia, water heater can not enter user mode, and junction 9011 is too little is also stopped up by impurity easily.Embodiment shown in Figure 16 designs in order to address this is that.

Embodiment six, see Figure 16, the outer shell joint that stretches out water heater after the outlet of connecting leg 0702 and check valve 075 converges mixes the hot water inlet of water valve 070, the cooling water inlet that mixes water valve connects running water pipe by arm 0701, water supply valve 072 is located between feed pipe 0721 and the water control expansion gear 076, and the difference of it and Fig. 6 also is to have reduced emptying valve and has increased pressure switch 074 on water tank; The cut-away view of water control expansion gear 074 is seen Figure 17, is provided with the change gear 062 of piston 067 and control water supply valve 072, spilling water valve 073 in the valve body 061, and the running water pipe 07 of interface 065 map interlinking 16 exports the flow pipe 077 of 064 map interlinking 16; As can be seen from Fig. 17, when piston 067 is positioned at outermost position, shifting block 0672 on the piston control lever 0671 pushes slide block 0673 and goes up the place most and make slide block away from apopore 068 (connecting leg 0702 in apopore 068 map interlinking 16), behind the mixed water valve 070 of opening Figure 16, the water of valve body 061 inner chamber can flow into connecting leg 0702 fast through apopore 068 and flow through mixed water valve 070 more at last from outlet pipe 0700 outflow, piston 067 descends, rack drives change gear 062 on the control lever 0671 rotate and make water supply valve 072 integrated with spilling water valve 073 in interior transfer valve action (its operating state is identical with the foregoing description), then, slide block 0673 slides to apopore 068 and blocks apopore under the self gravitation effect, this moment is through exporting 064, water supply valve, water tank, hot-water line, the passage of check valve is connected, so the water that flows in the valve body 061 through the gap of the interface 065 and the piece 063 that blocks water can flow out to guarantee that piston 067 continues to move down through above-mentioned passage, up to pushing the piece 063 that blocks water open, water heater enters user mode, hot and cold water flow proportional on the mixed water valve of adjusting can adjust the temperature of the water of water pipe 0700 outflow, close when mixing water valve, the hydraulic pressure of body cavity rises among Figure 17, piston 067 moves up, the piece 063 that blocks water moves under spring action and resets, control lever drives change gear also resets transfer valve, and last slide block 067 is also shifted onto position away from apopore 068 by shifting block 0672.Slide block 0673 constitutes the controllable valve with open mode and crack state with apopore 068.

Heating device among Figure 16 embodiment is electric heating device; on water tank, be connected with pressure switch 074; its internal structure is seen Figure 18; pressure switch is by valve body 0061; piston 0062; spring 0063 and travel switch 0064 constitute; interface 0067 is connected with the gas thread that water tank stretches out; when water tank is pressed when too high; piston 0062 is moved to the left; disconnect the power supply of electric heating device up to the switch lever of the push rod 0065 depression stroke switch 0064 that links to each other with piston; also continue to rise if press in the water tank; when then piston 0062 continued to be moved to the left to spilled water hole 0066 place, the water in the water tank flowed out through this spilled water hole, further protects water tank.Because the coefficient of expansion of water is approximately 2 * 10 ^-4K ^-1Then be the water tank of 40L for volume, as long as water temperature rising 10K, then the volume of its water can increase 100mL, so if the spilling water channel jam, the operating pressure of then the volume of water increases is enough to make the pressure switch action. pressure switch 074 can be set at 0.0001MPa or 0.0002MPa or 0.0003MPa or 0.0004MPa or 0.0005MPa or 0.0006MPa or 0.0007MPa or 0.0008MPa or 0.0009MPa or 0.001MPa or 0.002MPa or 0.003MPa or 0.004MPa or 0.005MPa or 0.006MPa or 0.007MPa or 0.008MPa or 0.009MPa or 0.01MPa or 0.02MPa or 0.03MPa or 0.04MPa or 0.05MPa or 0.06MPa or 0.07MPa or 0.08MPa or 0.09MPa or 0.1MPa or 0.11MP or 0.12MPa or 0.13MPa or 0.14MPa or 0.15MPa or 0.16MPa or 0.17MPa or 0.18MPa or 0.19MPa or 0.2MPa or 0.21MP or 0.22MPa or 0.23MPa or 0.24MPa or 0.25MPa or 0.26MPa or 0.27MPa or 0.28MPa or 0.29MPa or 0.3MPa.

Claims (10)

1, a kind of storage water heater, comprise water tank, pyrogenicity element, hot-water line, outlet valve, running water pipe and feed pipe, wherein feed pipe to water tank supply cold water, hot-water line is drawn hot water in water tank, the water inlet that it is characterized in that outlet valve is connected to connecting leg, be connected to the by-pass valve control that prevents the current direction hot-water line in the connecting leg between connecting leg and the hot-water line outlet, be connected to the water control expansion gear between connecting leg and the running water pipe, be connected to normally closed water supply valve between the inner chamber of water control expansion gear and the feed pipe; Be connected to the spilling water valve of often opening between water tank and the overflow pipe, the peak of the spilling water passage that spilling water valve and overflow pipe constitute is close to or higher than the peak of water tank; Running water pipe is provided with inlet valve to the passage of water control expansion gear, and the opening of this inlet valve is divided into open mode section and crack state section; Described water supply valve, spilling water valve and inlet valve are controlled by the expansion wall of described water control expansion gear.

2, according to the described storage water heater of claim 1, it is characterized in that described inlet valve is made of valve seat, stator and moving plate, through hole one side of stator is provided with pervious seam, is described crack state section after the through hole that the intake chamber on the moving plate is crossed stator strides into pervious seam.

3,, it is characterized in that described by-pass valve control is a check valve or a normally closed stop valve that is subjected to the expansion wall control of described water control expansion gear according to the described storage water heater of claim 1.

4, according to the described storage water heater of claim 1, it is characterized in that described outlet valve is a mixed water valve, described connecting leg connects the cooling water inlet that mixes water valve, and the outlet of described hot-water line connects the hot water inlet that mixes water valve, and the hot-water valve that mixes in the water valve is described by-pass valve control.

5, according to the described storage water heater of claim 1, it is characterized in that described water control expansion gear inner chamber is provided with controllable valve to the passage between the connecting leg, this controllable valve is controlled by described expansion wall.

6, according to the described storage water heater of claim 5, it is characterized in that described water control expansion gear connects connecting leg by apopore, this apopore and the slide block that is positioned at water control expansion gear inner chamber or centering block or the block that links to each other with the expansion wall of water control expansion gear constitute described controllable valve.

7, according to the described storage water heater of claim 1, it is characterized in that described water tank is provided with pressure switch, described heating device is electric heating device, and this pressure switch is controlled the power supply of electric heating device and is the power supply that the operating state of pressure switch cuts off electric heating device.

8, according to the described storage water heater of claim 7, the operating pressure scope that it is characterized in that described pressure switch at 0.0001MPa between the 0.3MPa.

9, according to the described storage water heater of claim 1, it is characterized in that described water control expansion gear is made of valve body and piston, be provided with compression spring between piston and the valve body and make piston be subjected to inside pressure, be provided with sealing ring between piston and the body cavity, this piston is described expansion wall.

10, according to the described storage water heater of claim 1, it is characterized in that placing in the described water control expansion gear piece that blocks water, the water inlet of piece and water control expansion gear of blocking water constitutes described inlet valve, and the limited block that limits its expansion wall outermost displacement is set on the described water control expansion gear.

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