CN109751761A - Electric boiler - Google Patents
Electric boiler Download PDFInfo
- Publication number
- CN109751761A CN109751761A CN201811028656.9A CN201811028656A CN109751761A CN 109751761 A CN109751761 A CN 109751761A CN 201811028656 A CN201811028656 A CN 201811028656A CN 109751761 A CN109751761 A CN 109751761A
- Authority
- CN
- China
- Prior art keywords
- electric heater
- water
- electric
- heating region
- temperature sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The present invention provides a kind of electric boiler for being able to suppress reduced performance.Electric boiler (1) has water pipe (4), configuration in the internal electric heater (71) of water pipe (4) and the temperature sensor (8) for the heating region (FA) configured on electric heater (71) surface.
Description
Technical field
The present invention relates to electric boilers.
Background technique
It has been known that there is electric boilers that is as disclosed in Patent Document 1, being heated using electric heater to water.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2010-169356 bulletin
Because contacting with water and may adhere to scale on the surface of electric heater.Furthermore, it is possible to generate electric heater
The state that surface is not contacted with water.If the surface for letting alone electric heater is attached with the state of scale, there is such as electric heating general ability
Portion's temperature increases or the possibility of corrosion.In addition, if the state that the surface for letting alone electric heater is not contacted with water, there is electric heater
The possibility of overheat.As a result it may result in the reduced performance of electric boiler.
Summary of the invention
Problems to be solved by the invention
The purpose of embodiments of the present invention is that providing a kind of electric boiler for being able to suppress reduced performance.
Solve technological means used by project
Embodiment according to the present invention provides a kind of electric boiler, has: water pipe, configuration are inside above-mentioned water pipe
The temperature sensor of electric heater, the heating region configured on above-mentioned electric heater surface.
Invention effect
Embodiment according to the present invention provides a kind of electric boiler that can manage electric heater temperature.
Detailed description of the invention
Fig. 1 is the front elevation for schematically showing an example of electric boiler involved in present embodiment.
Fig. 2 is the side view for schematically showing an example of electric boiler involved in present embodiment.
Fig. 3 is the side cross-sectional view for indicating an example of heating device involved in present embodiment.
Fig. 4 is the functional block diagram for indicating an example of electric boiler involved in present embodiment.
Fig. 5 is the flow chart for indicating an example of control method of electric boiler involved in present embodiment.
Symbol description
1 ... electric boiler, 2 ... waterworks, 3 ... lower part headers, the inner space 3H ..., 4 ... water pipes, 5 ... tedges,
6 ... top headers, the inner space 6H ..., 7 ... heating devices, 8 ... temperature sensors, 9 ... water-level detecting devices, 10 ... controls
Device, 10A ... arithmetic processing apparatus, 10B ... storage device, 10C ... input/output interface, 11 ... notice devices, 12 ... power supplys,
21 ... feed pipes, 22 ... feed pumps, 23 ... water-supply valves, 24 ... drainpipes, 25 ... drain valves, 26 ... steam pipes, 27 ... steam valves,
71 ... electric heaters, 72 ... flanges, 73 ... connectors, 74 ... core materials, 75 ... heating wires, 76 ... receiving components, 77... powder,
78... electrode wires, 79... seal member, 91... detection container, the inner space 91H..., 92... electrode bar, 92A, 92B,
92C ... electrode bar, 93 ... lower part communicating pipes, 94 ... top communicating pipes, 101 ... temperature data acquisition portions, 102 ... waterlevel datas obtain
Take portion, 103 ... determination units, 104 ... water supply control units, 105 ... notice control units, 106 ... electric heater control units, 107 ... the 1st
Specified value storage unit, 108 ... the 2nd specified value storage units, the boundary EG ..., FA ... heating region, the non-heating region of NA ....
Specific embodiment
Hereinafter, being illustrated referring to attached drawing to embodiment according to the present invention, but the present invention is not limited to this.With
The constituent element of the embodiment of lower explanation can be appropriately combined.In addition, there is also do not use part constituent element.
In the present embodiment, it is specified that three-dimensional orthogonal coordinate system, is closed based on position of the three-dimensional orthogonal coordinate system to each section
System is illustrated.The direction parallel with the X-axis in horizontal plane is defined as X-direction.By in the horizontal plane for being orthogonal to X-axis
The parallel direction of Y-axis is defined as Y direction.The direction parallel with the Z axis for being orthogonal to horizontal plane is defined as Z-direction.
[electric boiler]
Fig. 1 is the front elevation for schematically showing an example of electric boiler 1 involved in present embodiment.Fig. 2 is schematic table
Show the side view of an example of electric boiler 1 involved in present embodiment.Fig. 1 and Fig. 2 indicates one of electric boiler 1 respectively with section
Point.
As depicted in figs. 1 and 2, electric boiler 1 has: waterworks 2, the lower part header 3 being connect with waterworks 2, with
Multiple water pipes 4 that lower part header 3 connects, the multiple tedges 5 being connect respectively with multiple water pipes 4, connect with tedge 5 it is upper
Portion's header 6, the heating device 7 with electric heater 71 of the configuration water pipe 4 inside configure hair on 71 surface of electric heater
The temperature sensor 8 of thermal region FA, detect water pipe 4 water level water-level detecting device 9, control electric boiler 1 control device 10,
The power supply 12 for prompting the notice device 11 of notification information and powering to heating device 7.
Waterworks 2 are via lower part header 3 to 4 water supply of water pipe.Waterworks 2, which have, to be connect with lower part header 3
Feed pipe 21, the feed pump 22 for being configured at feed pipe 21, the water-supply valve 23 for being configured at feed pipe 21.By keeping feed pump 22 dynamic
Make, water is supplied to lower part header 3 via feed pipe 21.Water is supplied by header 3 to the lower part, to supply water to water pipe 4.
Waterworks 2 can adjust the confluent per unit time to lower part header 3.In the present embodiment, control device 10
The confluent per unit time to lower part header 3 is adjusted by adjusting the rotation amount per unit time of feed pump 22.
The confluent per unit time to water pipe 4 is adjusted by adjusting the confluent to lower part header 3.It should be noted that giving
When water valve 23 is functioned as flow rate regulating valve, when can adjust the per unit to lower part header 3 by water-supply valve 23
Between confluent.
Lower part header 3 accommodates the water supplied from waterworks 2.Lower part header 3 is the inner space with receiving water
The container of 3H.Lower part header 3 distributes the water supplied from waterworks 2 respectively to multiple water pipes 4.It is supplied from waterworks 2
Water to lower part header 3 is respectively fed to multiple water pipes 4.In addition, the lower part of lower part header 3 is connect with drainpipe 24.
Drainpipe 24 is configured with drain valve 25.By opening drain valve 25, it is contained in the water of inner space 3H of lower part header 3 extremely
Few a part is discharged via drainpipe 24.
Water pipe 4 keeps the water flow of header 3 from below logical.Water pipe 4 is the cylinder-like part with water flow road.Water pipe 4 is matched
The central axis for being set to water pipe 4 is parallel with Z axis.The lower end of water pipe 4 is connect with the top of lower part header 3.Water pipe 4 is in X-axis side
Interval is configured with multiple upwards.Multiple water pipes 4 respectively with lower part header 3.
Electric heater 71 is configured in the inside of water pipe 4.Electric heater 71 is bar-like member.The surface of electric heater 71 and water
The inner face of pipe 4 is opposite across gap.The water of header 3 is supplied to the inner face and electric heater 71 of water pipe 4 from below
Between surface.The surface of electric heater 71 is contacted with supply to the water inside water pipe 4.It is connect by the surface and water of electric heater 71
Touching, so that water is heated and generates steam.
Temperature sensor 8 configures the heating region FA on 71 surface of electric heater.Temperature sensor 8 detects electric heater 71
Heating region FA temperature.The top for the heating region FA that temperature sensor 8 configured in electric heater 71.
Tedge 5 makes the steam generated in water pipe 4 circulate.Tedge 5 is the cylinder-like part with vapor flow path.Rise
Water pipe 4 is connect by pipe 5 with top header 6.The steam generated in water pipe 4 is supplied to top header 6 via tedge 5.
The lower end of tedge 5 is connect with the top of water pipe 4.The upper end of tedge 5 is connect with the lower part of top header 6.Rise
Pipe 5 is provided with multiple, connect respectively with multiple water pipes 4.Multiple tedges 5 are connect with top header 6 respectively.
As shown in Fig. 2, in the Y-axis direction, the position of lower part header 3 and water pipe 4 is different from 6 position of top header.
A part bending of tedge 5.The lower end of tedge 5 is connect with the side of the side-Y on 4 top of water pipe.The upper end of tedge 5
Portion is connect with the lower part of top header 6.
Top header 6 accommodates the steam supplied from tedge 5.Top header 6 is that the inside with receiving steam is empty
Between 6H container.Top header 6 makes the steam supplied respectively from multiple tedges 5 aggregation.In addition, top header 6 is upper
Portion is connect with steam pipe 26.Steam pipe 26 is configured with steam valve 27.By opening steam valve 27, it is housed in top header 6
At least part of the steam of inner space 6H is discharged via steam pipe 26.
Water-level detecting device 9 detects the water level between the inner face of water pipe 4 and the surface of electric heater 71.Water level refers to Z axis
The position of water surface on direction.Water-level detecting device 9 has detection container 91, configures the multiple electrodes stick in detection container 91
92, the lower part communicating pipe 93 and will test container 91 and top header 6 that container 91 and lower part header 3 connect be will test
The top communicating pipe 94 of connection.
The inner space 91H of detection container 91 is connect via lower part communicating pipe 93 with the inner space 3H of lower part header 3.
The inner space 91H of detection container 91 is connect via top communicating pipe 94 with the inner space 6H of top header 6.Lower part connection
The lower part that pipe 93 will test container 91 is connected with the top of lower part header 3.Top communicating pipe 94 will test the top of container 91
It is connected with the lower part of top header 6.
Detection container 91 contains water.The water level of detection container 91 and the water level of water pipe 4 are substantially equal.Water level detecting dress
9 water levels by detection detection container 91 are set, the water 1 for being able to detect water pipe 4 is vertical.
Multiple electrodes stick 92 is configured at the inner space 91H of detection container 91.In the present embodiment, electrode bar 92 contains
3 electrode bars 92A, 92B, 92C.It should be noted that electrode bar 92 be equipped with it is multiple, such as can be equipped with 4 or more.
Electrode bar 92 is the bar-like member formed by conductive material.The upper end of electrode bar 92 is protected via insulating material
Hold the upper cover in detection container 91.The lower end of electrode bar 92 is far from detection container 91.
Modes electrode bar 92A, 92B, 92C different in the position of Z-direction with the lower end of electrode bar 92A, 92B, 92C
It is maintained at detection container 91.In the present embodiment, in electrode bar 92A, 92B, 92C, the lower end of electrode bar 92A is configured most
High position, the lower end configuration of electrode bar 92B is under the higher position for being lower than the lower end electrode bar 92A, electrode bar 92C
End is configured in minimum position.
Detection container 91 is formed by conductive material.Detection container 91 plays function as the common electrode of multiple electrodes stick 92
Energy.The water for being contained in detection container 91 is contacted with the lower end of electrode bar 92, so that detection container 91 and electrode bar 92 are via water
It is powered.
Water-level detecting device 9 detects water using electrode bar 92.Water-level detecting device 9 is when stream alives in electrode bar 92
It is determined as that electrode bar 92 is contacted with water.
Water-level detecting device 9 is based on the water for detecting detection container 91 whether there is or not current flowing respectively in multiple electrodes stick 92
Position.Such as in whole electrode bar 92A, 92B, 92C when current flowing, control device 10 is determined as the water level of detection container 91
Higher than the lower end of electrode bar 92A.The current flowing in electrode bar 92B, 92C and when electric current does not circulate in electrode bar 92A, control
Device 10 is determined as lower end of the water level higher than electrode bar 92B of detection container 91 and is lower than the lower end of electrode bar 92A.In electricity
Current flowing in the stick 92C of pole and when electric current does not circulate in electrode bar 92A, 92B, control device 10 is determined as the water of detection container 91
Lower end of the position higher than electrode bar 92C and the lower end for being lower than electrode bar 92B.The electricity in whole electrode bar 92A, 92B, 92C
When circulating, control device 10 is determined as that the water level of detection container 91 is lower than the lower end of electrode bar 92C.
In the Z-axis direction, the position of the lower end of electrode bar 92C and the upper end of the heating region FA of electric heater 71
Position is substantially the same.The current flowing in electrode bar 92C, when electrode bar 92C detects water, control device 10 is determined as that electricity adds
Whole heating region FA of hot device 71 are immersed in the water of water pipe 4.On the other hand, electric current does not circulate in electrode bar 92C, electrode bar
When water is not detected in 92C, control device 10 is determined as including the upper end of the heating region FA of electric heater 71 at least
A part is not immersed in the water of water pipe 4.
Testing result of the waterworks 2 based on water-level detecting device 9 is to 4 water supply of water pipe, so that the water level of water pipe 4 maintains
The top of the heating region FA of electric heater 71.In the present embodiment, electrode bar 92B, 92C detects water and electrode bar 92A
When water is not detected, control device 10 makes feed pump 22 act and implement water supply.In addition, whole in electrode bar 92A, 92B, 92C
When detecting water, control device 10 stops the movement of feed pump 22 and stops water supply.The water level of water pipe 4 is maintained at electricity as a result,
Position between the lower end of pole stick 92A and the lower end of electrode bar 92B.By the way that the water level of water pipe 4 is maintained electrode bar 92A
Lower end and electrode bar 92B lower end between, whole heating region FA of electric heater 71 can be made under water.
[electric heater and temperature sensor]
Fig. 3 is the side cross-sectional view for indicating an example of heating device 7 involved in present embodiment.As shown in Figure 1, Figure 2 and Fig. 3 institute
Show, heating device 7 have electric heater 71 of the configuration inside water pipe 4, the upper end for being supported in water pipe 4 flange 72 and
The connector 73 being connect with power supply 12.
Electric heater 71 is bar-like component.In the present embodiment, electric heater 71 is cartridge heater.Electric heater 71
With with the inner face of water pipe 4 across the opposite surface in gap.Electric heater 71 is inserted into water pipe from the opening of the upper end of water pipe 4
4 inside.Flange 72 is fixed on the upper end of water pipe 4.Heating device 7 is removable at water pipe 4.
The surface of electric heater 71 has heating region FA and non-heating region NA.Non- heating region NA configuration is in hot zone
Above the FA of domain.Heating region FA includes the lower end on the surface of the electric heater 71 opposed with the inner face of water pipe 4.Non- heating region
NA includes the upper end on the surface of the electric heater 71 opposed with the inner face of water pipe 4.In the Z-axis direction, the ruler of heating region FA
It is very little bigger than non-heating region NA.In the Z-axis direction, the boundary EG configuration of heating region FA and non-heating region NA with water pipe 4
Opposed 71 surface of electric heater of inner face middle part upside (side+Z).
As shown in figure 3, electric heater 71 has heating wire 75, the receiving core material 74 of core material 74, configuration around core material 74
And heating wire 75 receiving component 76, be filled in receiving component 76 and core material 74 and heating wire 75 between powder 77.
Core material 74 is formed by this insulating material of ceramics.Heating wire 75 is wound in around core material 74 in coiled type.Receiving
Component 76 is cylinder-like part, is formed by this metal of stainless steel.Powder 77 is by this insulating material shape of magnesia (MgO)
At.
Core material 74 is cylinder-like part.A pair of electrodes line 78 is configured in the inside of core material 74.
At least part of electrode wires 78 is configured at the hole that core material 74 is arranged in.The front end of electrode wires 78 and heating wire 75
Connection.The opening for accommodating the upper end of component 76 is clogged by seal member 79.The configuration of flange 72 is in the upper end of receiving component 76.
Electrode wires 78 are connect via connector 73 with power supply 12.Electricity is supplied to heating wire 75 from power supply 12 via electrode wires 78
It flows so that heating wire 75 generates heat.
Heating region FA is suitable with the part of heating wire 75 is equipped with.Non- heating region NA and the part for being not provided with heating wire 75
Quite.
Electric heater 71 configures mode the opening from the upper end of water pipe 4 above heating region FA with non-heating region NA
The inside of mouth insertion water pipe 4.After electric heater 71 is inserted into the inside of water pipe 4, the upper end of flange 72 and water pipe 4 is fixed.
Temperature sensor 8 configures on the top of heating region FA.The top of heating region FA refers to hot zone in Z-direction
The part of the upside (side+Z) of the middle part of domain FA.In the present embodiment, temperature sensor 8 configuration heating region FA with it is non-
Near the boundary EG of heating region NA.
That is, the configuration of temperature sensor 8 is in the upper end of heating region FA.
In the present embodiment, 1 electric heater 71 is equipped with 1 temperature sensor 8.It should be noted that 1 electric heater 71
Multiple temperature sensors 8 can also be equipped with.1 electric heater in multiple electric heaters 71 can be set in temperature sensor 8
71。
It should be noted that 1 electric heater 71 can be configured at water pipe 4, it can also be by the set of multiple electric heaters 71
Body is configured at water pipe 4.When the aggregate of multiple electric heaters 71 is configured at water pipe 4, by adding connector 73 and multiple electricity
Hot device 71 connects, and the electric current supplied from power supply 12 is respectively fed to multiple electric heaters 71.It should be noted that electric heater 71 can
To be sheathing formula electric heater.
[control device]
Fig. 4 is the functional block diagram for indicating an example of electric boiler 1 involved in present embodiment.As shown in figure 4, electric boiler 1
With control device 10.Control device 10 respectively with temperature sensor 8, water-level detecting device 9, waterworks 2, notice device 11
It is connected with power supply 12.As Fig. 1 and Fig. 2 are equipped with 3 electric heaters 71 and 3 temperature sensors 8 in the present embodiment.
Device 11 is notified to prompt notification information to the user of electric boiler 1.As notice device 11, display dress can be illustrated
It sets, is in light emitting device and sounding device at least one kind of.Display device includes liquid crystal display (LCD:Liquid Crystal
) or organic el display (OELD:Organic Electroluminescence Display) this FPD Display
Device.Light emitting device includes light emitting diode (LED:Light Emitting Diode) this light source.Sounding device includes that can send out
The notifying device or sound output device of warning tones out.Notice device 11 uses the display data shown by display device, by shining
It is at least one kind of to the user of electric boiler 1 prompt notice letter in the light of device sending and the sound issued from sounding device
Breath.
Control device 10 includes computer.Control device 10 include including CPU (Central Processing Unit: in
Central Processing Unit) this processor arithmetic processing apparatus 10A；Including RAM (Random Access Memory: arbitrary access
Memory) this volatile memory and ROM (Read Only Memory: read-only memory) this nonvolatile memory
Storage device 10B；Including can receiving and transmitting signal or data imput output circuit input/output interface 10C.
Arithmetic processing apparatus 10A has temperature data acquisition portion 101, waterlevel data acquisition unit 102, determination unit 103, water supply
Control unit 104, notice control unit 105 and electric heater control unit 106.
Storage device 10B has the 1st specified value storage unit 107 and the 2nd specified value storage unit 108.
Temperature data acquisition portion 101 obtains the temperature data for indicating the detected value of temperature sensor 8.Waterlevel data acquisition unit
102 obtain the waterlevel data for indicating the detected value of water-level detecting device 9.
Determination unit 103 determines whether the surface of electric heater 71 is attached with scale based on the detected value of temperature sensor 8.Separately
Outside, determination unit 103 determines whether electric heater 71 overheats based on the detected value of temperature sensor 8.
Scale refers to the precipitate of the hardness components contained in water.The surface of electric heater 71 is contacted with water.Therefore, electricity adds
The surface of hot device 71 may adhere to scale.If the heating region FA of electric heater 71 adheres to scale, heating region FA is hindered
Heat dissipation.As a result the temperature of electric heater 71 is caused to rise.For example, even if the power supply item powered from power supply 12 to electric heater 71
Water Supplies including part is certain and the temperature of the water including supplying to water pipe 4 and confluent per unit time are certain, sending out
Thermal region FA is attached in the state of scale and in the state of unattached scale, and the surface temperature of electric heater 71 is different.
Determination unit 103 can determine whether the surface of electric heater 71 is attached with scale based on the detected value of temperature sensor 8.
In certain and certain to the Water Supplies of water pipe 4 situation of the condition of power supply powered from power supply 12 to electric heater 71
Under, the temperature of the electric heater 71 when the unattached scale of the heating region FA of electric heater 71 and the heating region of electric heater 71
The temperature of electric heater 71 when FA is attached with scale, such as preliminary experiment or draft experiment export can be passed through.That is, electric heater 71
Electric heater 71 of heating region FA when being attached with scale temperature and electric heater 71 the unattached scale of heating region FA
When electric heater 71 temperature be given data.As an example, in the state that heating region FA is totally submerged in water, electricity adds
The temperature of electric heater 71 when the unattached scale of the heating region FA of hot device 71 is 170 [DEG C], the hot zone of electric heater 71
The temperature of electric heater 71 when domain FA is attached with scale is 185 [DEG C].
In the present embodiment, the electric heater 71 when the heating region FA of export electric heater 71 is attached with scale in advance
Temperature, be stored in the 1st specified value storage unit 107 as the 1st specified value.1st specified value is, for example, 185 [DEG C].Determination unit 103
When the detected value of temperature sensor 8 is benchmark temperature 170 [DEG C], it is determined as the unattached scale in the surface of electric heater 71,
When the detected value of temperature sensor 8 reaches the 1st specified value 185 [DEG C], it is determined as that the surface of electric heater 71 is attached with scale.
In addition, may cause the water level of water pipe 4 such as the exception as feed pump 22 lower than boundary EG, electricity occur and add
The state that at least part of the heating region FA of hot device 71 is not contacted with water.In the shape powered from power supply 12 to electric heater 71
Under state, if the state that the heating region FA for letting alone electric heater 71 is not contacted with water, electric heater 71 can overheat.Determination unit
103 can determine whether electric heater 71 overheats based on the detected value of temperature sensor 8, i.e. whether the water level of judgement water pipe 4 is lower than
Boundary EG.
In the case where the condition of power supply powered from power supply 12 to electric heater 71 is certain, the heating region of electric heater 71
The electric heater when temperature of electric heater 71 and the heating region FA of electric heater 71 when FA and water contact are not contacted with water
71 temperature can for example be exported by preliminary experiment or draft experiment.That is, when the heating region FA of electric heater 71 and water contact
The temperature of electric heater 71 when the temperature of electric heater 71, the heating region FA of electric heater 71 are not contacted with water is datum
According to.As an example, the temperature of the electric heater 71 when heating region FA is not contacted with water is 200 [DEG C] or more.
In the present embodiment, the electric heater 71 when the heating region FA of export electric heater 71 is not contacted with water in advance
Temperature, be stored in the 2nd specified value storage unit 108 as the 2nd specified value.2nd specified value is, for example, 200 [DEG C].Determination unit 103
When the detected value of temperature sensor 8 reaches the 2nd specified value 200 [DEG C], it is determined as that electric heater 71 overheats, that is, be determined as water
The water level of pipe 4 is lower than boundary EG, and at least part of heating region FA is not contacted with water.
The control of the feed pump 22 of detected value output control waterworks 2 of the water supply control unit 104 based on water-level detecting device 9
Signal processed, so that the water level of water pipe 4 maintains above the heating region FA of electric heater 71.Water is detected in electrode bar 92C and
When water is not detected in electrode bar 92A, 92B, water supply control unit 104 exports the control signal for acting feed pump 22.Thus by water
The water level of pipe 4 maintains the top of the lower end of electrode bar 92C.By the lower end that the water level of water pipe 4 is maintained to electrode bar 92C
The top in portion can be such that the heating region FA of electric heater 71 is totally submerged in water.
Notify detected value of the control unit 105 based on temperature sensor 8, the control signal of output control notice device 11.?
In present embodiment, control unit 105 is notified to be determined as that the heating region FA of electric heater 71 is attached with scale in determination unit 103
When, output makes the control signal for notifying device 11 to act.When device 11 being notified to contain display device, notice control unit 105 will be used
Display device is shown in the display data that the surface of prompt electric heater 71 may be attached with scale.Display data can be text
Digital data is also possible to graph data.In addition, notifying control unit 105 from light emitting device when notice device 11 contains light emitting device
It issues for prompting the surface of electric heater 71 that may be attached with the light of scale.In addition, when notice device 11 contains sounding device,
Control unit 105 is notified to be generated by sounding device for prompting the surface of electric heater 71 that may be attached with the warning tones of scale.
The control signal of detected value output control power supply 12 of the electric heater control unit 106 based on temperature sensor 8.At this
In embodiment, for electric heater control unit 106 when determination unit 103 is judged as that electric heater 71 overheats, output makes electric heater
The control signal of 71 stoppings movement.That is, electric heater control unit 106 determination unit 103 be determined as electric heater 71 overheat when, to
The output of power supply 12 stops the control signal powered to electric heater 71.
[control method of electric boiler]
Fig. 5 is the flow chart for indicating an example of the control method of electric boiler 1 involved in present embodiment.Water supply control unit
104 act waterworks 2, start 3 water supply (step S1) of header to the lower part.Water supply control unit 104 is filled based on water level detecting
The detected value control waterworks 2 for setting 9, so that the water level of water pipe 4 maintains the top of the heating region FA of electric heater 71.
In addition, electric heater control unit 106 acts power supply 12 and starts to power (step S2) to electric heater 71.Pass through
Act electric heater 71 in the state that heating region FA is totally submerged in water, so that water is heated and generates steam.
The detected value of the monitoring of temperature data acquisition portion 101 temperature sensor 8.The inspection of the judgement temperature sensor 8 of determination unit 103
Whether measured value is the 1st specified value or more (step S3).
When being determined as the detected value of temperature sensor 8 in step S3 less than 1 specified value (step S3:No), determination unit 103
It is determined as that electric heater 71 is normal (step S4), the processing of return step S3.In the present embodiment, electric heater 71 is normally
Refer to, the unattached scale of heating region FA and heating region FA of electric heater 71 are totally submerged in the state in water.
When the detected value for being determined as temperature sensor 8 in step S3 is the 1st specified value or more (step S3:Yes), determination unit
103 determine whether the detected value of temperature sensor 8 is the 2nd specified value or more (step S5).
When being determined as the detected value of temperature sensor 8 in step S5 less than 2 specified value (step S5:No), determination unit 103
It is determined as that the heating region FA of electric heater 71 is attached with scale (step S6).
Notice control unit 105 is exported when the heating region FA for being determined as electric heater 71 is attached with scale to be made to notify device
The control signal (step S7) of 11 movements.
By making that device 11 is notified to act, the user of electric boiler 1 understand that electric heater 71 may be attached with scale.
The maintenance of such as electric heater 71 can be implemented in the user of electric boiler 1.
When the detected value for being determined as temperature sensor 8 in step S5 is the 2nd specified value or more (step S5:Yes), determination unit
103 are determined as that electric heater 71 overheats (step S8).
The output when being determined as that electric heater 71 overheats of notice control unit 105 makes the control signal for notifying device 11 to act.
The output control signal of control unit 105 is notified, so that notice device 11 is in different notice forms in the form of the notice in step S7
Movement.In addition, the output when being determined as that electric heater 71 overheats of electric heater control unit 106 acts 71 stopping of electric heater
It controls signal (step S9).
By making that device 11 is notified to act, the user of electric boiler 1 understand that electric heater 71 overheats.In addition, passing through
Act 71 stopping of electric heater, the excessive temperature rise of electric heater 71 can be inhibited.
[effect]
As described above, according to the present embodiment, temperature sensing is arranged by the heating region FA on 71 surface of electric heater
Device 8 can manage the temperature of electric heater 71.In addition, arithmetic processing apparatus 10A can the detected value based on temperature sensor 8 come
It is without exception to determine that electric heater 71 has.In the present embodiment, electric heater 71 is abnormal refers to, the heating region of electric heater 71
FA is attached with one or both of the state that the state of scale and at least part of heating region FA are not contacted with water.Electricity adds
When hot device 71 is abnormal, electric heater 71 can be taken to safeguard or stop that electric heater 71 acts this inhibition electric heater 71
The measure of reduced performance.
In addition, in the present embodiment, temperature sensor 8 configures on the top of heating region FA.Even if water pipe 4 as a result,
Water level slightly decline from boundary EG, temperature sensor 8 can also quickly detect the overheat of electric heater 71.For example,
Temperature sensor 8 configures in the case where the lower part of heating region FA, when the water level of water pipe 4 slightly declines from boundary EG, by
Under water in temperature sensor 8 and heating region FA configured with temperature sensor 8, it is possible to be difficult to quickly detect
The state that the top of heating region FA is not contacted with water.In the present embodiment, since temperature sensor 8 is configured in heating region
The top of FA, so when the water level of water pipe 4 slightly declines from boundary EG, temperature sensor 8 and configured with temperature sensor 8
Heating region FA becomes the state not contacted with water.Therefore, temperature sensor 8 can quickly detect the top of heating region FA
The state not contacted with water.
In addition, according to the present embodiment, to maintain side of the water level of water pipe 4 above the heating region FA of electric heater 71
Formula is from waterworks 2 to 4 water supply of water pipe.It can inhibit the overheat of electric heater 71 as a result,.
In addition, in the present embodiment, whether temperature sensor 8 is attached with scale as the surface of detection electric heater 71
Scale whether there is or not sensors to function.If the surface for letting alone electric heater 71 is attached with the state of scale, such as is possible to
71 local temperature of electric heater increases or corrosion.According to the present embodiment, can the detected value based on temperature sensor 8 simply sentence
Surely there is Non-scale.When detecting scale, the performance of electric boiler 1 can be inhibited by taking the adequate measures such as maintenance electric heater 71
It reduces.In addition, notice device 11 acts, so that the user of electric boiler 1 can implement rapidly to fit when being judged to being attached with scale
When measure.
In addition, in the present embodiment, whether there is or not biographies as the overheat whether detection electric heater 71 overheats for temperature sensor 8
Sensor functions.If placing the state that electric heater 71 overheats, such as electric heater 71 may break down.According to this reality
Apply mode, can the detected value based on temperature sensor 8 simply determine whether overheat.It, can be by taking when detecting overheat
Stop the adequate measures such as the movement of electric heater 71 to inhibit the reduced performance of electric boiler 1.In addition, when being judged as overheat, electricity
Heater 71 can be forcibly stopped movement, therefore be able to suppress the failure of electric heater 71.
It should be noted that in the above-described embodiment, as referring to illustrated by Fig. 5, when the detected value of temperature sensor 8
When reaching 1 specified value, it is determined as that the surface of electric heater 71 is attached with scale, when the detected value of temperature sensor 8 reaches high
When 2 specified value of the 1st specified value, it is determined as that electric heater 71 overheats.Determination unit 103 can be in the inspection of temperature sensor 8
The climbing of measured value is determined as that the surface of electric heater 71 is attached with scale when being the 3rd specified value or more, in temperature sensor 8
The climbing of detected value is determined as that electric heater 71 overheats when being higher than more than 4th specified value of the 3rd specified value.Temperature sensor
The climbing of 8 detected value refers to, the ascending amount of the detected value of temperature sensor 8 per unit time.When electric heater 71
When surface is attached with scale, scale can hinder the heat dissipation of electric heater 71, therefore the temperature of electric heater 71 can be increased slowly.Separately
On the one hand, when the state that the heating region FA for becoming electric heater 71 is not contacted with water, 71 temperature of electric heater will sharply be risen
It is high.Therefore, determination unit 103 is the 3rd specified value more than or lower than the 4th specified value in the climbing of the detected value of temperature sensor 8
When, that is, when being determined as that electric heater 71 is that temperature just slowly increases, it can be determined that the surface of electric heater 71 is attached with scale.
In addition, when determination unit 103 is more than the 4th specified value that the climbing of the detected value of temperature sensor 8 is higher than the 3rd specified value,
When being determined as that the temperature of electric heater 71 just sharply increases, it can be determined that electric heater 71 overheats.
Claims (8)
1. a kind of electric boiler, has: the electric heater and configuration of water pipe, configuration inside the water pipe add in the electricity
The temperature sensor of the heating region on hot device surface.
2. electric boiler according to claim 1, wherein the temperature sensor configuration is on the top of the heating region.
3. electric boiler according to claim 1 or 2, has waterworks, the waterworks are with by the water of the water pipe
Position maintains the mode above the heating region of the electric heater to the water pipe water supply.
4. electric boiler described in any one of claim 1 to 3, has arithmetic processing apparatus, the arithmetic processing apparatus
Detected value based on the temperature sensor determines whether the surface of the electric heater is attached with scale.
5. electric boiler according to claim 4, wherein detection of the arithmetic processing apparatus based on the temperature sensor
Value determines whether the electric heater overheats.
6. electric boiler according to claim 5, wherein the arithmetic processing apparatus reaches the 1st regulation in the detected value
It is determined as that the surface of the electric heater is attached with the scale when value, reaches in the detected value higher than the 1st specified value
2 specified value when be determined as electric heater overheat.
7. electric boiler according to claim 5, wherein the arithmetic processing apparatus is the in the climbing of the detected value
It is determined as that the surface of the electric heater is attached with the scale when more than 3 specified values, is height in the climbing of the detected value
It is determined as the electric heater overheat when more than the 4th specified value of the 3rd specified value.
8. the electric boiler according to any one of claim 5~7, wherein the arithmetic processing apparatus be determined as it is described
The surface of electric heater makes to notify device action when being attached with the scale, stops institute when being determined as electric heater overheat
State the movement of electric heater.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017214971A JP6958253B2 (en) | 2017-11-07 | 2017-11-07 | Electric boiler |
| JP2017-214971 | 2017-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109751761A true CN109751761A (en) | 2019-05-14 |
Family
ID=66402400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811028656.9A Pending CN109751761A (en) | 2017-11-07 | 2018-09-04 | Electric boiler |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6958253B2 (en) |
| CN (1) | CN109751761A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923563A (en) * | 2019-07-03 | 2021-06-08 | 山东交通学院 | Water heater with annularly distributed centers |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0345801A (en) * | 1989-07-10 | 1991-02-27 | Takuma Sogo Kenkyusho:Kk | Electric once-through boiler |
| CN2591518Y (en) * | 2002-12-14 | 2003-12-10 | 龚卫平 | Metal electric heating pipe scale alarmer |
| CN101101148A (en) * | 2006-07-03 | 2008-01-09 | 郝明君 | Induction heating type electrically-heated boiler for naturally circulated hot water heating system |
| CN201045535Y (en) * | 2007-06-01 | 2008-04-09 | 陈及安 | Bare electric instant heating water heater |
| CN201225701Y (en) * | 2008-06-16 | 2009-04-22 | 张建国 | Self-control constant temperature electric heating apparatus |
| JP2009527716A (en) * | 2006-02-16 | 2009-07-30 | アドバンスド エナジー インダストリーズ， インコーポレイテッド | System and method for delivering steam |
| CN101617915A (en) * | 2008-07-04 | 2010-01-06 | 株式会社东芝 | Steaming tool |
| CN201748399U (en) * | 2010-07-07 | 2011-02-16 | 云南航天工业总公司 | Scale limit value detection device |
| CN104776604A (en) * | 2015-03-31 | 2015-07-15 | 芜湖美的厨卫电器制造有限公司 | Control method for preventing dry burning of electric water heater and electric water heater |
| CN106705415A (en) * | 2016-12-13 | 2017-05-24 | 吉林省紫晶能源科技开发有限公司 | PTC semiconductor electric boiler and heating system |
| US20190120480A1 (en) * | 2017-10-24 | 2019-04-25 | John Edward Vandigriff | Controlled high pressure steam generation system |
-
2017
- 2017-11-07 JP JP2017214971A patent/JP6958253B2/en active Active
-
2018
- 2018-09-04 CN CN201811028656.9A patent/CN109751761A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0345801A (en) * | 1989-07-10 | 1991-02-27 | Takuma Sogo Kenkyusho:Kk | Electric once-through boiler |
| CN2591518Y (en) * | 2002-12-14 | 2003-12-10 | 龚卫平 | Metal electric heating pipe scale alarmer |
| JP2009527716A (en) * | 2006-02-16 | 2009-07-30 | アドバンスド エナジー インダストリーズ， インコーポレイテッド | System and method for delivering steam |
| CN101101148A (en) * | 2006-07-03 | 2008-01-09 | 郝明君 | Induction heating type electrically-heated boiler for naturally circulated hot water heating system |
| CN201045535Y (en) * | 2007-06-01 | 2008-04-09 | 陈及安 | Bare electric instant heating water heater |
| CN201225701Y (en) * | 2008-06-16 | 2009-04-22 | 张建国 | Self-control constant temperature electric heating apparatus |
| CN101617915A (en) * | 2008-07-04 | 2010-01-06 | 株式会社东芝 | Steaming tool |
| CN201748399U (en) * | 2010-07-07 | 2011-02-16 | 云南航天工业总公司 | Scale limit value detection device |
| CN104776604A (en) * | 2015-03-31 | 2015-07-15 | 芜湖美的厨卫电器制造有限公司 | Control method for preventing dry burning of electric water heater and electric water heater |
| CN106705415A (en) * | 2016-12-13 | 2017-05-24 | 吉林省紫晶能源科技开发有限公司 | PTC semiconductor electric boiler and heating system |
| US20190120480A1 (en) * | 2017-10-24 | 2019-04-25 | John Edward Vandigriff | Controlled high pressure steam generation system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923563A (en) * | 2019-07-03 | 2021-06-08 | 山东交通学院 | Water heater with annularly distributed centers |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6958253B2 (en) | 2021-11-02 |
| JP2019086222A (en) | 2019-06-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11698209B2 (en) | Cathodic corrosion and dry fire protection apparatus and methods for electric water heaters | |
| JP5965914B2 (en) | Metal pipe corrosion monitoring device and its application | |
| PH12020551947A1 (en) | Detection of adverse heater conditions in an electrically heated aerosol generating system | |
| JP5822076B2 (en) | Scale detection device and scale detection method | |
| RU2021113220A (en) | IMPLEMENTING DEPOSIT CONTROL | |
| CN105021644B (en) | Detection method and detecting system for steam heater | |
| US11231182B2 (en) | Water heater with hardness detection system | |
| CN207395210U (en) | A kind of control system of electric water heater with temperature sensor fault detection | |
| EP3464703B1 (en) | Systems and methods for monitoring sanitation agents in a laundry system | |
| US9661977B2 (en) | System for determining an operating state of a dishwasher and an according method | |
| JP2019513989A (en) | Level sensor for battery monitoring system | |
| CN109751761A (en) | Electric boiler | |
| JP5369831B2 (en) | Cooling water state measuring device and cooling tower | |
| JP4991321B2 (en) | Liquid detection sensor | |
| CN111526758B (en) | Hot water pad and sterilization module | |
| US7070324B2 (en) | Method and device for system and/or process monitoring | |
| KR200368314Y1 (en) | Heater apparatus for heating a plating tank | |
| EP3406790A1 (en) | Boiler for generating steam and household appliances containing said boiler | |
| JP2002148098A (en) | Water level-water temperature sensor | |
| CN206213046U (en) | A kind of float type liquid level detects heater | |
| KR101247669B1 (en) | Hot water heater and method for preventing overheating of hot water heater | |
| ES2785216T3 (en) | Dispensing device and dosing system for the dosed release of chemicals stored in containers to a dishwasher or washing machine | |
| CN115388546A (en) | Instant electric water heater and control method thereof | |
| JP6274505B2 (en) | Dirt monitoring sensor and dirt monitoring device | |
| CN205426360U (en) | Indirect temperature -detecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190514 |