CN1971164A

CN1971164A - Mixing type water-storage heater

Info

Publication number: CN1971164A
Application number: CN 200510101897
Authority: CN
Inventors: 麦广海
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-25
Filing date: 2005-11-25
Publication date: 2007-05-30

Abstract

The invention relates to a mixed water storage heater with safety and prolonged service life, comprising water tank, induced thermal part, heat water pipe, water outlet valve, running water pipe and water supply pipe, characterized in that the water outlet of water outlet valve is connected with the water inlet, control valve is connected between connection pipe and heat water pipe, water control expansion equipment is set between connection pipe and running water pipe, water supply valve is set between connection pipe and water supply pipe; overflow valve is set between water tank and overflow pipe; the water inlet of water control expansion equipment is connected with running water pipe, water resistance block is set at the outside of water inlet, return spring is set at the outside of water resistance block, gear is set in the water control expansion equipment, the mandril at the top of gear is opposite to the inside of water resistance block, the lower of gear is connected with the screw thread in the water control expansion equipment, the rack on the control bar fixed on the expansion wall of water control expansion is mated with the gear, water supply valve and overflow valve are controlled by said control bar.

Description

Mixed storage water heater

Technical field

The present invention relates to a kind of water heater, particularly a kind of mixed 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 the problem that cost height, life-span are short, reliability is low that exists in the existing closed storage water heater in order to solve, and provide a kind of easy to use, the life-span long, water outlet mixed storage water heater stably.

Technical scheme:

The objective of the invention is this realization: a kind of mixed 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, connect by-pass valve control between connecting leg and the hot-water line outlet, the effect of this by-pass valve control is to prevent to close the current direction hot-water line in the connecting leg behind the outlet valve, 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 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); The inlet opening of water control expansion gear connects running water pipe, be provided with the slide block that blocks water in the outside, inlet opening, the block water slide block outside is provided with back-moving spring, be provided with gear in the water control expansion gear, the push rod of gear top is over against the slide block inboard that blocks water, and the threaded engagement in the screw rod of gear bottom and the water control expansion gear is fixed with control lever on the expansion wall of water control expansion gear, rack and pinion on the control lever is meshing, and described water supply valve and spilling water valve are controlled by described control lever.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, and when the gravity that utilizes the slide block that blocks water is done to reset, the slide block outside back-moving spring that blocks water can be saved, and this is that those skilled in the art are all attainable on basis of the present invention.

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

Described mixed 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 mixed 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 control lever of described water control expansion gear.Certainly this shutoff valve also can be integrated in the above-mentioned transfer valve.

Described mixed 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.

Described mixed 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 mixed storage water heater, 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.The cross section of sealing ring is " U " shape, and opening is to body cavity.

Described mixed 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.

When using hot water, open outlet valve, pressure in the water control expansion gear descends, at this moment, the slide block that blocks water is close to the inlet opening, running water can only enter through the minim gap of block water slide block and inlet opening in the water control expansion gear, so, the water control expansion gear shrinks, expansion wall moves inward under the reset force effect, the control lever motion makes the spilling water valve, 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, control lever continues motion and rotates to the top push rod slide block that will block water up to gear and back down, the hydraulic pressure in enough big and balance water control expansion gear and the water-heater water tank is opened in the inlet opening of water management expansion gear, 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, gear separates with the slide block that blocks water, the slide block that blocks water is close to the inlet opening but its gap between the two can also make the water in the running water pipe sluice in the water management expansion gear, expansion wall continues outwards to move, to drive 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), be subjected to limited block spacing up to expansion wall, water heater such as returns at the machine state, at this moment, hydraulic pressure in the water control expansion gear is identical with hydraulic pressure in the running water pipe, but the interior water of water control expansion gear can not communicate with water tank.

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 tap or electronic mixed water valve, if outlet valve is for mixing water valve, then can a plurality of mixed water valves directly in parallel.

Beneficial effect:

Owing to adopted technical solutions according to the invention, described mixed 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 mixed 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; The mode of using wheel and rack to cooperate is controlled the slide block that blocks water, can make the water outlet of water heater steady, particularly when expansion wall is piston, its effect is more obvious, because there is certain frictional force between piston and the body cavity, when piston balance hydraulic pressure its to move to be stepless fully, when the variation in water pressure in the water control expansion gear is enough to cause that piston moves, being reflected at slide block and the inlet opening last variation of distance that blocks water can also be that the amount of exercise of piston is delivered to when blocking water slide block reduced much smaller than the amount of movement of piston.

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.

The outward appearance enlarged drawing of stator in the transfer valve 04 among Fig. 3 Fig. 2.

Fig. 4 is the outward appearance enlarged drawing of transfer valve 04 interior moving plate among Fig. 2.

Description of symbols among the figure: 091, water tank, 0911, hot-water line, 0921, outlet pipe, 092, mix water valve, 0901, connecting leg, 80, the water control expansion gear, 800, running water pipe, 083, the spilling water valve, 0831, overflow pipe, 0821, feed pipe, 082, water supply valve; 020, limited block, 034, compression spring, 02, support, 03, piston, 031, control lever, 0312, planing surface, 0311, pressure head, 04, transfer valve, 041, changer lever, 4, tooth bar, 51, nut, 5, gear, 014, guide pad, 012, the inlet opening, 05, slide block blocks water, 051, back-moving spring, 013, interface, 601, through hole, 011, apopore, 010, expansion chamber, 01, valve body; 148, stator, 1481,1482,1483, through hole, 149, moving plate, 1491 supply flumes.

The specific embodiment:

See Fig. 1, described mixed storage water heater, comprise water tank 09, heating is (in water tank, do not draw among the figure), hot-water line 0911, mix water valve 092, running water pipe 800 and feed pipe 0821, the cold water inlet that mixes water valve 092 is connected to connecting leg 0901, connect the water inlet of hot water that mixes water valve 092 between the outlet of hot-water line 0911, valve between the water inlet of hot water of hot-water line 0911 and mixed water valve is by-pass valve control, do not communicate between the connecting leg 0901 and hot-water line 0911 when closing when mixing water valve 092, prevent that the cold water in the connecting leg from flowing to hot-water line, be connected to water control expansion gear 80 between connecting leg and the running water pipe, be connected to normally closed water supply valve 082 between connecting leg and the feed pipe 0821; Be connected to the spilling water valve of often opening 083 between water tank 091 and the overflow pipe 0831.Dot-dash among Fig. 1 represents that water supply valve and excessive valve are subjected to water-control device 80 controls.

See the internal structure schematic diagram of water control expansion gear shown in Figure 2, comprise valve body 01, support 02, compression spring 034, piston 03, constitute expansion chamber 010 between valve body and the piston, connecting leg 0901 in apopore 011 map interlinking 1, running water pipe in interface 013 map interlinking 1, inlet opening 012 can be communicated with running water pipe, 012 outside is provided with the slide block 05 that blocks water in the inlet opening, the block water slide block outside is provided with back-moving spring 051, the screw thread that expansion chamber 010 is fixed with nut 51 and gear 5 bottoms matches, the push rod of gear 5 tops is over against slide block 05 inboard that blocks water, being fixed on control lever 031 on the piston 03, to be provided with tooth bar 4 meshing with gear 5, and water supply valve 082 among Fig. 1 and spilling water valve 083 are integrated in the transfer valve 04 of Fig. 2.

The stator 148 of transfer valve 04 as shown in Figure 3, moving plate 149 as shown in Figure 4, feed pipe 0821 in through hole 1481 map interlinkings 1 in the stator 148 of transfer valve 04, the overflow pipe 0831 in through hole 1482 map interlinkings 1, the connecting leg 0901 in through hole 1483 map interlinkings 1, the moving plate 149 of transfer valve is provided with supply flume 1491 towards stator 148 1 sides, and through hole 1481 and through hole 1483 that supply flume 1491 in the moving plate and the through hole 1481 in the stator and 1482 constitute in spilling water valves, supply flume 1491 and the stator constitute water supply valves.

Operation principle: in conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4, 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 right 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 import department this moment because of the slide block 05 that blocks water, running water can only enter in the expansion chamber 010 in the gap through blocking water between slide block 05 and the inlet opening 012, piston 03 can continue to move to right, to block water slide block 05 of push rod up to gear 5 tops upwards makes the slide block 05 that blocks water separate with inlet opening 012 in the top, the through hole 601 of running water on the slide block 05 that blocks water, inlet opening 012 enters in the expansion chamber 010, at this moment, moving of piston 03 plays the balance and stability effect to the hydraulic pressure in the expansion chamber 010, 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 to left under the hydraulic pressure effect, push rod on the rack drives gear 5 on the control lever separates with the slide block 05 that blocks water, the slide block 05 that blocks water shelters from inlet opening 012 fully, the gap that running water continues through blocking water between slide block 05 and the inlet opening 012 enters in the expansion chamber 010, just the flow of this moment is less, piston 03 can continue to be moved to the left 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 left to always limited 020 spacing till (state shown in Figure 2), water heater reenters holding state, at this moment, gapped between slide block 05 and the inlet opening 012 though block water, 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.

Dotted line among Fig. 4 is represented supply flume 1491 back side on moving plate 149.

Claims

1, a kind of mixed 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, connect by-pass valve control 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 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; The inlet opening of water control expansion gear connects running water pipe, be provided with the slide block that blocks water in the outside, inlet opening, the block water slide block outside is provided with back-moving spring, be provided with gear in the water control expansion gear, the push rod of gear top is over against the slide block inboard that blocks water, and the threaded engagement in the screw rod of gear bottom and the water control expansion gear is fixed with control lever on the expansion wall of water control expansion gear, rack and pinion on the control lever is meshing, and water supply valve and spilling water valve are controlled by described control lever.

2,, it is characterized in that described water supply valve and spilling water valve are integrated in the same transfer valve according to the described mixed storage water heater of claim 1.

3,, it is characterized in that described by-pass valve control is a check valve according to the described mixed storage water heater of claim 1.

4, according to the described mixed storage water heater of claim 1, it is characterized in that described by-pass valve control is a normally closed stop valve, this stop valve is controlled by the control lever of described water control expansion gear.

5, according to the described mixed 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.

6,, it is characterized in that described water supply valve, spilling water valve return normality by back-moving spring according to the described mixed storage water heater of claim 1.

7, according to the described mixed 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.

8,, it is characterized in that being provided with on the described water control expansion gear limited block that limits its expansion wall outermost displacement according to the described mixed storage water heater of claim 1.