CN207763242U - A kind of electric heater - Google Patents

Abstract

The application provides a kind of electric heater, the electric heater includes liner, the liner is equipped with the inlet opening of installation water inlet pipe respectively and installs the apopore of outlet pipe, the liner at the bottom is additionally provided with deflector hole, the electric heater further includes the diversion pipe being mounted in the deflector hole, there is opening, lower end to be equipped with dewatering outlet for the upper end of the diversion pipe；It is additionally provided with diaphragm valve at the deflector hole, is equipped in the diaphragm valve and the water in liner is conducted to the flow-guiding channel outside liner, the diaphragm valve control opens and closes the dewatering outlet.The electric heater of the utility model, water level when diversion pipe is used to determine the heating of half courage in liner, the keying of dewatering outlet, can control the water capacity in liner, water level is enable to switch between whole courage and half courage on diversion pipe.

Description

A kind of electric heater

Technical field

The utility model is related to household appliance technical field more particularly to a kind of electric heaters.

Background technology

Existing electric heater realizes the switching of whole courage, half courage heating function by changing heating location.In general, electric heating Hydrophone includes the heating tube and a heating tube in the middle part of liner below a dive to liner, is needing whole courage heating function When, the heating tube of lower section heats simultaneously, and when needing half courage heating function, the heating tube at only middle part is heated.Since water is heat Non-conductor, when the heating tube heating positioned at liner center, the water below heating tube will not be heated, only upper half Part water is hot, in the case where hot water is enough, has not only reduced the time of heating, but also save energy.

But existing electric heater has as a drawback that：

When 1, using half courage heating function, liner needs to fill water, and in insulating process, water temperature can be toward biography below heating tube It passs, causes energy dissipation；

2, heating-pipe structure is complicated, need to there is the heating tube below dive to liner and the heating tube in the middle part of liner simultaneously；

Therefore, existing half courage heating is not the half courage heating of real meaning, but the region under full courage water state adds Hot mode.

Utility model content

Energy when the utility model provides one kind while there is whole courage heating function and half courage heating function and half courage to heat Effect height, the simple electric heater of heating-pipe structure.

In order to solve the above technical problems, the utility model adopts the following technical solution：

The utility model provides a kind of electric heater, and the electric heater includes liner, and the liner is equipped with difference The inlet opening of water inlet pipe is installed and the apopore of outlet pipe is installed, the liner at the bottom is additionally provided with deflector hole, the electric heater Further include the diversion pipe being mounted in the deflector hole, there is opening, lower end to be equipped with dewatering outlet for the upper end of the diversion pipe；It is described It is additionally provided with diaphragm valve at deflector hole, is equipped in the diaphragm valve and the water in liner is conducted to the flow-guiding channel outside liner, it is described Diaphragm valve control opens and closes the dewatering outlet.

Electric heater provided by the present application, water level when diversion pipe is used to determine the heating of half courage in liner, that is, work as electric heating When hydrophone uses half courage heating function, dewatering outlet is closed, and the water in liner enters flow-guiding channel from the opening on diversion pipe top, and It is emitted into outside liner, until the water level in liner is concordant with opening, the water in liner cannot continue to flow out from diversion pipe at this time, so Heating element heats the water in liner afterwards；When electric heater uses whole courage heating function, flow-guiding channel is closed, liner Interior water can not be flowed out from flow-guiding channel, and during half courage becomes whole courage, upper air can be discharged by outlet pipe, heating element Whole courage water in liner is heated；When liner needs to discharge water completely, flow-guiding channel conducting, water from the opening of diversion pipe and Deflector hole enters flow-guiding channel and is emitted into outside liner, until the water in liner is emptied completely.

Existing electric heater usually has dewatering outlet and diaphragm valve, in the water in liner is drained or cleaned Simultaneously the sewage after cleaning is discharged from dewatering outlet and diaphragm valve for courage.In the application, the break-make of dewatering outlet is controlled using diaphragm valve, And the height of water level in control liner, to realize the function of real half courage water heating.Due to being provided with diversion pipe, it is determined that half courage Water level when heating in liner, water when reducing the heating of half courage in liner, reduces energy loss when heat preservation so that electricity The efficiency of water heater is high.

Optionally, the diaphragm valve includes dewatering orifice, catch and hollow flow-guiding channel, and the dewatering orifice is with catch to select One mode coordinates with the dewatering outlet, so that the dewatering orifice is overlapped with dewatering outlet so that the dewatering outlet is connected, or catch is made to hide Dewatering outlet is kept off to close the dewatering outlet.

Diaphragm valve in the application, when diaphragm valve is whole to be rotated relative to liner or is mobile, the dewatering outlet on diversion pipe It can be connected to dewatering orifice, the control of discharge water then can be realized by controlling the break-make of diaphragm valve；When diaphragm valve it is whole relative to When liner rotates or is mobile, the dewatering outlet on diversion pipe can be sealed or opened by diaphragm valve.

Optionally, the electric heater is equipped with magnesium stick, and there is the diaphragm valve top surface, one end of the magnesium stick to stretch into described Diversion pipe is installed on the top surface of the diaphragm valve.

The flow-guiding channel is stretched into one end of magnesium stick, is installed on the top surface of the diaphragm valve, allows magnesium stick and water conservancy diversion Valve takes apart from deflector hole together, and need not dismantle diversion pipe, convenient for the replacement of magnesium stick and the repair of diaphragm valve.

Optionally, it is additionally provided with collar nut on the diaphragm valve, the collar nut is by the diaphragm valve and the liner Connection, and the diaphragm valve is enable to rotate or move relative to the liner, the dewatering orifice is switched on or off.

In the application, diaphragm valve is connect by collar nut with liner, to realize that diaphragm valve is fixedly connected on liner, and Can be relatively movable in liner, meet the function that diaphragm valve opens and closes dewatering outlet.

Optionally, the flow-guiding channel downstream is additionally provided with the ball valve for opening or closing the flow-guiding channel.

Ball valve can open and close flow-guiding channel in the application, be flowed out by the flow-guiding channel with controlling the water in liner, in ball In the case that valve opens flow-guiding channel, when dewatering outlet connection flow-guiding channel, the water in liner can be made to be completely exhausted out, work as diaphragm valve When cut-out dewatering outlet is connected to flow-guiding channel, the water in liner is discharged by opening, and liner water level is held in open height after discharge, To realize half courage water state.

Optionally, there is the diversion pipe top surface, the opening of the diversion pipe to be set to top surface and/or sidewall upper.

The height of the opening control liner discharge water level of diversion pipe in the application, therefore aperture position is higher than dewatering outlet, because This, can be designed as being opened on top surface or be opened in the sidewall upper of diversion pipe, can be opened in top surface simultaneously in side wall On, the extreme lower position of opening is that half courage heats water level restriction position.

Optionally, the electric heater is equipped with magnesium stick, and the magnesium stick is installed on the top surface of the diversion pipe, and the magnesium stick In the diversion pipe, the top surface of the diversion pipe is equipped with magnesium stick mounting hole.

Magnesium stick is installed on the top surface of diversion pipe, and the magnesium stick is located in the diversion pipe, ensures that magnesium stick is always positioned at page Below face, ensure magnesium stick ion isolation effect, and magnesium stick is detached with diaphragm valve, reduce diaphragm valve stress, ensures sealing deflector hole Fit clearance.

Optionally, the diaphragm valve is rotated in an axial direction with dewatering outlet described on and off, and the inner wall of the diversion pipe is set There is the limit rib to diaphragm valve rotary stopper；Or the diaphragm valve is moved up and down in an axial direction to discharge water described on and off Mouthful, the outer wall of the diversion pipe is equipped with the limiting section that limit is moved up and down to diaphragm valve.

Diaphragm valve opens and closes dewatering outlet by way of rotating or moving up and down, and makes the operating range smaller of diaphragm valve, ensures The movable sealing effect of diaphragm valve and dewatering outlet.

Optionally, the liner height that the distance between opening Yu deflector hole of the diversion pipe are 1/4~3/4.

In the application, the opening control liner on diversion pipe discharges water level, therefore the distance of extended distance deflector hole is After discharge, liner residual water level height corresponds to the half courage heating water position status of the application, is the 1/4 of liner height by distance ~3/4 so that the water capacity in liner reduces, and water temperature heats up faster, and thermal loss reduces, the efficiency higher of electric heater.

Optionally, the electric heater is equipped with heating element, and the heating element is installed in liner, the heating element Bringing-up section be not higher than the opening.

The bringing-up section of heating element is not higher than the opening of diversion pipe so that when half courage heat, water level in liner with add The upper end of hot arc is concordant or is higher than bringing-up section, to ensure that heating element is not in dry combustion method phenomenon when half courage heats.

Other features and advantages of the utility model will illustrate in the following description, also, partly from specification In become apparent, or understood by implementing the utility model.The purpose of this utility model and other advantages can pass through Specifically noted structure is realized and is obtained in specification, claims and attached drawing.

Description of the drawings

Attached drawing is used for providing further understanding technical solutions of the utility model, and a part for constitution instruction, With for explaining the technical solution of the utility model, do not constituted to technical solutions of the utility model together with embodiments herein Limitation.

Fig. 1 is the schematic cross-sectional view of the electric heater of the utility model embodiment one；

Fig. 2 is the portions A structure enlargement diagram in Fig. 1, and wherein diaphragm valve is in the open state, and ball valve is closed；

Fig. 3 is the portions A structure enlargement diagram in Fig. 1, and wherein diaphragm valve is in the open state, and ball valve is in the open state；

Fig. 4 is the schematic cross-sectional view of the electric heater of the utility model embodiment one, and wherein diaphragm valve, which is in, closes State；

Fig. 5 is the portions B structure enlargement diagram in Fig. 4, and wherein diaphragm valve is closed, and ball valve is in the open state；

Fig. 6 is the portions B structure enlargement diagram in Fig. 4, and wherein diaphragm valve is closed, and ball valve is closed；

Fig. 7 is C-C sectional views in Fig. 4；

Fig. 8 is the portions D structure enlargement diagram in Fig. 7, and wherein diaphragm valve is closed, and ball valve is in the open state；

Fig. 9 is the structural schematic diagram of diaphragm valve；

Figure 10 is the sectional view of diaphragm valve in Fig. 9

Figure 11 is the structural schematic diagram of heating tube in Fig. 1；

Figure 12 is the schematic cross-sectional view of the electric heater of the embodiment of the present invention two.

Wherein, the relationship between reference numeral and component names is：

1 liner, 2 deflector holes, 3 inlet openings, 4 apopores, 5 diversion pipes, 51 openings, 52 dewatering outlets, 6 heating elements, 61 tiltedly Section, 62 dive sections, 63 temperature tubes, 64 limit temperature pipes, 65 graticules, 7 discharging valves, 71 valve decks, 711 dewatering orifices, 712 magnesium stick mounting holes, 713 catch, 714 flow-guiding channels, 72 valve seats, 73 ball valves, 74 handles, 75 sealing rings, 76 collar nuts, 8 magnesium sticks.

Specific implementation mode

To make the purpose of this utility model, technical solution and advantage be more clearly understood, below in conjunction with attached drawing to this The embodiment of utility model is described in detail.It should be noted that in the absence of conflict, embodiment in the application and Feature in embodiment mutually can be combined arbitrarily.

Embodiment one：

As shown in Figure 1, the embodiments of the present invention provide a kind of electric heater, with whole courage heating function and half Courage heating function, electric heater include liner 1, the heating element 6 in liner 1, inlet opening 3, apopore 4.

Further, electric heater further includes the deflector hole 2 being arranged in 1 bottom of liner, and the electric heater further includes installation The upper end of diversion pipe 5 in the deflector hole 2, the diversion pipe 5 has opening 51；Lower end is equipped with dewatering outlet 52；It is described to lead It is additionally provided with diaphragm valve 7 at discharge orifice 2, the flow-guiding channel being conducted to the water in liner 1 outside liner 1 is equipped in the diaphragm valve 7 714, the control of the diaphragm valve 7 opens and closes the dewatering outlet 52.

Deflector hole 2 is offered on the liner 1 of the utility model, the lower end of diversion pipe 5 is installed in deflector hole 2, diversion pipe 5 Water level when being arranged for determining the heating of half courage in liner 1 of the height of opening 51 of upper end, i.e., when electric heater uses half When courage heating function, dewatering outlet 52 is closed, and the water in liner enters flow-guiding channel 714 from the opening 51 on 5 top of diversion pipe, side by side It puts to outside liner, until the water level in liner is concordant with opening 51, the water in liner cannot continue to flow out from diversion pipe 5 at this time, Then heating element heats the water in liner；When electric heater uses whole courage heating function, flow-guiding channel 714 closes It closes, the water in liner can not be flowed out from flow-guiding channel 714, and heating element heats the water in liner；When liner has needed When discharging water entirely, flow-guiding channel 714 is connected, and water enters flow-guiding channel 714 from the opening 51 of diversion pipe 5 and dewatering outlet 52 and is emitted into Outside liner, until the water in liner is emptied completely.In the present embodiment, the opening 51 is the opening at 5 top of diversion pipe, the present invention Opening 51 be connected to always with the flow-guiding channel 714.

Existing electric heater usually has dewatering outlet 52 and diaphragm valve 7, to drain the water in liner 1 or clearly It washes liner 1 and the sewage after cleaning is discharged from dewatering outlet 52 and diaphragm valve 7.In the present embodiment, using existing diaphragm valve 7 come The height of water level in the break-make of diversion pipe 5, and control liner is controlled, to realize half courage heating function.The electric hot water of the present embodiment Device, due to being provided with diversion pipe 5, it is determined that water level when half courage heats in liner 1, when reducing the heating of half courage in liner 1 Water reduces energy loss when heat preservation so that the efficiency of electric heater is high.

For this purpose, as shown in Figure 3 and Figure 4, deflector hole 2 is opened on the bottom wall of liner 1, under the side wall of diversion pipe 5 Portion offers dewatering outlet 52, and the upper end of diaphragm valve 7 is stretched into after deflector hole 2 in diversion pipe 5.Further, diaphragm valve 7 and liner 1 flexible connection, dewatering outlet 52 is connected to diaphragm valve 7 or diaphragm valve 7 closes dewatering outlet 52.

Specifically, 7 upper end of diaphragm valve is stretched into diversion pipe 5, can be controlled in this way by controlling the break-make of diaphragm valve 7 Water is discharged from diversion pipe 5, to realize function that real double of courage water is heated.In addition, being opened in the lower part of the side wall of diversion pipe 5 If dewatering outlet 52, when being rinsed without carrying out liner 1, the movement in diversion pipe 5 of diaphragm valve 7 can be made（As rotated or moving）, with Dewatering outlet 52 is closed（State as shown in FIG. 6）；When needing to carry out the flushing of liner 1, make the fortune in diversion pipe 5 of diaphragm valve 7 It is dynamic, dewatering outlet 52 is opened（State as shown in Figure 2）, then ball valve 73 opened（State as shown in Figure 3）, can arrange at this time Liner discharges water completely.Diaphragm valve 7 so both realizes the function of discharge water, while also achieving 5 break-make of control diversion pipe in turn The function of water level when controlling the heating of half courage.

As shown in Figure 9, Figure 10, the diaphragm valve 7 includes：Valve deck 71 and collar nut 76.The valve deck 71 is equipped with and puts Water hole 711, catch 713 and hollow flow-guiding channel 714, the dewatering orifice 711 are discharged water in a manner of selecting one with described with catch 713 Mouth 52 coordinates, and so that the dewatering orifice 711 is overlapped with dewatering outlet 52 so that the dewatering outlet 52 is connected, or so that catch 713 is blocked and put The mouth of a river 52 is to close the dewatering outlet 52.

The electric heater is equipped with magnesium stick 8, and the diaphragm valve 7 has top surface, and the water conservancy diversion is stretched into one end of the magnesium stick 8 Pipe 5 is installed on the top surface of the diaphragm valve 7.The top surface of valve deck 71 is equipped with 8 mounting hole 712 of magnesium stick, and the magnesium stick 8 is installed on On 8 mounting hole 712 of magnesium stick.In the present embodiment, the opening that the bottom end of magnesium stick 8 is stretched at the top of diversion pipe 5 is installed on diaphragm valve 7.

Collar nut 76 is additionally provided on the diaphragm valve, the collar nut 76 connects the diaphragm valve 7 and the liner 1 It connects, and enables the diaphragm valve 7 relative to liner rotation or movement, the dewatering orifice 12 is switched on or off.This reality It applies in example, the diaphragm valve 7 is rotated in an axial direction with dewatering outlet 52 described on and off.In the utility model, the diaphragm valve 7 It is additionally provided with valve seat 72, valve deck 71 is integrally formed with valve seat 72, and the flow-guiding channel 714 inside valve deck 71 and valve seat 72 is perforation Formula drives 7 unitary rotation of diaphragm valve will pass through operation valve seat 72.

714 downstream of the flow-guiding channel is additionally provided with the ball valve 73 for opening or closing the flow-guiding channel 714.On ball valve 73 Communicating passage is offered, ball valve 73 is mounted on the lower part of valve deck 71, is located at outside liner, and ball valve is opened and closed convenient for user's operation 73, handle 74 is connect with ball valve 73, and ball valve 73 is driven to rotate, and handle 74 is located at except the body of electric heater, passes through adjusting Handle 74 come make ball valve 73 rotate.

Diaphragm valve 7 in the present embodiment, valve deck 71 are connect by collar nut 76 with liner 1, to realize that diaphragm valve 7 is whole Body is mounted on liner 1；7 lower part of diaphragm valve is equipped with ball valve 73, and ball valve 73 can rotate under the drive of handle 74 to lead to water conservancy diversion Road 714 seals or connection, to control the break-make of diaphragm valve 7；The side wall of diaphragm valve 7 is equipped with dewatering orifice 711 and catch 713, when When 7 entirety of diaphragm valve is rotated relative to liner 1, the dewatering outlet 52 on diversion pipe 5 can be connected to dewatering orifice 711, then can be passed through The break-make for controlling diaphragm valve 7 realizes the control of discharge water；When diaphragm valve 7 is integrally rotated relative to liner 1, catch 713 can incite somebody to action Dewatering outlet 52 on diversion pipe 5 seals, and then can complete discharging water under the heating of half courage by controlling the break-make of flow-guiding channel 714 Journey.

In order to limit the rotational angle of diaphragm valve 7, so as to dewatering outlet 52 is connected to dewatering orifice 711 or catch 713 will Dewatering outlet 52 seals, and limit rib 13 can be equipped on the inner wall of diversion pipe 5, as shown in figure 3, limit rib 13 is for limiting diaphragm valve The final position of diaphragm valve 7 when 7 rotational angle and determining two states.

Further, the height of the liner is H, and the distance h of the opening 51 of the diversion pipe 7 apart from deflector hole 2 is 1/ 4H~3/4H.The utility model devises half courage heating function of electric heater, i.e., the water in liner is not completely filled with liner In the case of heating and use state, for half courage heating liquid level, when liquid level is relatively low, heating speed is fast, thermal energy damage It loses less, but the sustainable usage time of hot water is short, hot water output quantity is reduced；When liquid level is higher, hot water output can guarantee, but The effect that half courage of liquid uses is not notable, in the utility model, devises what 1/4~3/4 liner height was heated as half courage Height of water level, the considerations of having taken into account many factors such as hot water output and heating speed and heat-energy losses.In the present embodiment, institute It is 1/3H to state distance h of the opening 51 apart from deflector hole 2.

Further, the electric heater is equipped with heating element 6, and the heating element 6 is located in liner 1, heating element 6 Bringing-up section not higher than it is described opening 51.The bringing-up section of heating element is not higher than the opening 51 of diversion pipe 5 so that is heated in half courage When, the water level in liner 1 is concordant with the upper end of bringing-up section or is higher than bringing-up section, to ensure that heating element will not when half courage heats There is dry combustion method phenomenon.Due to setting heating element bringing-up section be not higher than diversion pipe 5 so that no matter when whole courage heats or When half courage heats, heating element can heat the water in liner 1, simplify the structure of heating element.

Below in conjunction with the accompanying drawings, the electric heater of the present embodiment is illustrated.

As shown in Figure 1, deflector hole 2, inlet opening 3, apopore 4, heating element 6, diaphragm valve 7 are fixed on liner 1.

The concrete structure of each component is：

（1）Diversion pipe 5：

It is used to discharge water and control when whole courage heating function is switched to half courage heating function the water level of liner 1.Diversion pipe 5 It is equipped with opening 51, dewatering outlet 52 and limit rib 13, opening 51 is for limiting half courage water level；Dewatering outlet 52 is used for 1 dirt of liner Discharge, there are one dewatering outlet 52 is each in 5 both sides of diversion pipe；Opening 51 is connected to the flow-guiding channel 714 of diaphragm valve 7 always；Limit rib 13 for limit 7 rotational angle of diaphragm valve and determine two states when final position.

（2）Diaphragm valve 7：

It includes：Valve deck 71, valve seat 72, ball valve 73, handle 74, sealing ring 75, collar nut 76；

Valve deck 71 includes：Dewatering orifice 711, magnesium stick 8, mounting hole 712, catch 713 and flow-guiding channel 714.

After diaphragm valve 7 is fixed on liner 1, when diaphragm valve 7 needs rotation, the rotation of valve seat 72, water conservancy diversion are held On valve 7 except collar nut 76 and liner 1 fixation do not rotate in addition to, other parts with 72 synchronous rotary of valve seat.

（3）Heating element 6：

Such as Figure 11 comprising heating tube, temperature tube 63 and limit temperature pipe 64.

Heating tube includes oblique section 61 and dive section 62.Oblique 61 direction of section is provided with graticule 65 in oblique section 61, marks towards obliquely downward Line 65 is the interface of heating tube eduction rod and heater strip, and the pipe on 65 right side of graticule is interior without heater strip, the part in 65 left side of graticule Position for the bringing-up section of heating element, graticule 65 will not occur not higher than the height of the opening 51 when half courage heats Heating tube dry combustion method phenomenon；Dive section 62 improves hot water delivery rate close to liner at the bottom, the water of energy fully 1 bottom of heating inner liner；It surveys Warm pipe 63 limits warm pipe 64 for putting temperature limiter temperature-sensing probe, and top is less than graticule 65, ensures for putting temperature controller temperature-sensing probe When half courage heats, the water temperature of liner can be detected.

The operation principle of the electric heater of the present embodiment is as follows.

When using whole courage function, ball valve 73 is in the state for closing flow-guiding channel 714, and whether the catch 713 of diaphragm valve 7 is close The dewatering outlet 52 of envelope diversion pipe 5 does not influence whole courage heating function, but in the present embodiment, can design in whole courage heating function Under, dewatering orifice 711 is overlapped with dewatering outlet 52, state as shown in Figure 1 and Figure 2.

When using half courage function, catch 713 closes dewatering outlet 52 at this time, and the water in liner 1 can only be from 5 top of diversion pipe Outflow；Rotation ball valve 73 makes flow-guiding channel 714 be connected, and water enters from 5 top of diversion pipe, through 5 side wall of diversion pipe and dewatering orifice 711 Between gap, flowed out from flow-guiding channel 714, when water level line is concordant with 5 open top 51 of diversion pipe, liner is automatically stopped Water outlet, the purpose of diversion pipe 5 are discharged water level in order to control；After water in liner 1 is put into opening 51 concordantly, the rotation closing of ball valve 73 is led Circulation road 714, the state as described in Fig. 4-Fig. 8, wherein Fig. 4, Fig. 5, Fig. 7, Fig. 8（Direction shown in arrow is the direction of water flowing） State be whole courage water become half courage water the process that discharges water, Fig. 6 be discharge water after, liner water level is maintained under half courage state, ball The half courage heated condition that valve 73 is closed.

When water heater needs blowdown, diaphragm valve 7 is rotated, so that dewatering orifice 711 is overlapped with dewatering outlet 52, is on shape State；Rotational handle 74 drive ball valve 73 rotate, keep flow-guiding channel 714 in the open state, water from liner 1 through dewatering outlet 52, put Water hole 711 is discharged, as shown in Figure 3（Direction shown in arrow is the direction of water flowing）, when the water level in liner is higher than diaphragm valve 7 Opening 51 when, part water also 51 can enter flow-guiding channel from opening through the gap between 5 side wall of diversion pipe and dewatering orifice 711 714, and be discharged outside liner, when the water level in liner is less than the opening 51 of diaphragm valve 7, the water in liner 1 is only from dewatering outlet 52, dewatering orifice 711 enters flow-guiding channel 714 and is discharged.

Embodiment two：

Present embodiments provide a kind of electric heater, with embodiment one the difference is that：The installation side of magnesium stick 8 Formula.

Such as Figure 12, diversion pipe 5 described in the present embodiment is equipped with top surface, the opening 51 of the diversion pipe be set to top surface and/or Sidewall upper.The electric heater is equipped with magnesium stick 8, and the magnesium stick is installed on the top surface of the diversion pipe, and the magnesium stick 8 is located at In the diversion pipe 5, the top surface of the diversion pipe 5 is equipped with magnesium stick mounting hole, it is contemplated that under half courage water level conditions, magnesium stick also needs It to generate ion isolation effect in liquid, in the present embodiment, the magnesium stick 8 is installed on to the top surface of the diversion pipe 5, and position In in the diversion pipe 5, ensureing that magnesium stick 8 is always positioned at below the page, ensure 8 ion isolation effect of magnesium stick, and magnesium stick 8 and water conservancy diversion Valve 7 detaches, and reduces 7 stress of diaphragm valve, ensures the fit clearance of sealing deflector hole.In the present embodiment, the extended distance water conservancy diversion The distance in hole is set as 1/2 liner height.

Embodiment three：

Present embodiments provide a kind of electric heater, with embodiment one the difference is that：Diaphragm valve is relative to leading The motion mode of flow tube.

The operation principle of the electric heater of the present embodiment is as follows.

In the present embodiment, by making diaphragm valve 7 is whole to be moved up and down relative to diversion pipe 5, to control dewatering outlet 52 and put The break-make in water hole 711.The diaphragm valve 7 is moved up and down in an axial direction with dewatering outlet 52 described on and off, the diversion pipe 5 Outer wall is equipped with the limiting section that limit is moved up and down to diaphragm valve 7.

When using whole courage function, catch 713 closes dewatering outlet 52 at this time, and ball valve 73 is at closed position, flow-guiding channel 714 In closed state.

When using half courage function, catch 713 closes dewatering outlet 52 at this time, and the water in liner 1 can only be from 5 top of diversion pipe Opening 51 enter flow-guiding channel 714；Rotation ball valve 73 make flow-guiding channel 714 be connected, water from 5 open top 51 of diversion pipe into Enter, through the gap between 5 side wall of diversion pipe and dewatering orifice 711, is flowed out from flow-guiding channel 714, it is flat in water level line and opening 51 Stop water outlet when neat, the purpose of the opening 51 of diversion pipe 5 is discharged water level in order to control；When water heater needs blowdown, pull downward on Diaphragm valve 7 makes dewatering orifice 711 be overlapped with dewatering outlet 52, flow-guiding channel 714 is on until 7 portion of being limited of diaphragm valve limits State；Rotational handle 74 drive ball valve 73 rotate, keep diaphragm valve 7 in the open state, water from liner 1 through dewatering outlet 52, discharge water Hole 711 enters flow-guiding channel 714 and is discharged outside liner 1.

Although the embodiment disclosed by the utility model is as above, the content only the utility model for ease of understanding And the embodiment used, it is not limited to the utility model.Technical staff in any the utility model fields, Under the premise of not departing from the spirit and scope disclosed by the utility model, it can be carried out in the form and details of implementation any Modification and variation, but the scope of patent protection of the utility model, the appended claims that must still be subject to are defined.

Claims (10)

1. a kind of electric heater, the electric heater includes liner, and the liner is equipped with the inlet opening for installing water inlet pipe respectively And the apopore of installation outlet pipe, which is characterized in that

The liner at the bottom is additionally provided with deflector hole, and the electric heater further includes the diversion pipe being mounted in the deflector hole, institute There is opening, lower end to be equipped with dewatering outlet for the upper end for stating diversion pipe；

It is additionally provided with diaphragm valve at the deflector hole, is equipped in the diaphragm valve and the water in liner is conducted to the water conservancy diversion outside liner leads to Road, the diaphragm valve control open and close the dewatering outlet.

2. electric heater according to claim 1, which is characterized in that the diaphragm valve includes dewatering orifice, catch and hollow Flow-guiding channel, the dewatering orifice and catch coordinate in a manner of selecting one with the dewatering outlet, make the dewatering orifice with discharge water it is salty It closes so that the dewatering outlet is connected, or so that catch is blocked dewatering outlet to close the dewatering outlet.

3. electric heater according to claim 2, which is characterized in that the electric heater is equipped with magnesium stick, the diaphragm valve With top surface, the diversion pipe is stretched into one end of the magnesium stick, is installed on the top surface of the diaphragm valve.

4. electric heater according to claim 1, which is characterized in that collar nut is additionally provided on the diaphragm valve, it is described The diaphragm valve is connect by collar nut with the liner, and the diaphragm valve is enable to rotate or move relative to the liner, with The dewatering orifice is switched on or off.

5. electric heater according to claim 4, which is characterized in that the flow-guiding channel downstream, which is additionally provided with, plays on or off Close the ball valve of the flow-guiding channel.

6. electric heater according to claim 1, which is characterized in that the diversion pipe is equipped with top surface, the diversion pipe Opening is set to top surface and/or sidewall upper.

7. electric heater according to claim 6, which is characterized in that the electric heater is equipped with magnesium stick, the magnesium stick peace Top surface loaded on the diversion pipe, and the magnesium stick is located in the diversion pipe, the top surface of the diversion pipe is pacified equipped with magnesium stick Fill hole.

8. according to the electric heater described in claim 1-7 any one, which is characterized in that the diaphragm valve rotate in an axial direction with Dewatering outlet described on and off, the inner wall of the diversion pipe are equipped with the limit rib to diaphragm valve rotary stopper；Or it described leads Stream valve is moved up and down in an axial direction with dewatering outlet described on and off, and the outer wall of the diversion pipe, which is equipped with, moves up and down diaphragm valve The limiting section of limit.

9. according to the electric heater described in claim 1-7 any one, which is characterized in that the opening and water conservancy diversion of the diversion pipe The liner height that the distance between hole is 1/4~3/4.

10. electric heater according to claim 9, which is characterized in that the electric heater is equipped with heating element, described to add Thermal element is installed in liner, and the bringing-up section of the heating element is not higher than the opening.