CN108870760A - A kind of Thermostatic water heaters - Google Patents
A kind of Thermostatic water heaters Download PDFInfo
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- CN108870760A CN108870760A CN201810834230.6A CN201810834230A CN108870760A CN 108870760 A CN108870760 A CN 108870760A CN 201810834230 A CN201810834230 A CN 201810834230A CN 108870760 A CN108870760 A CN 108870760A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 573
- 238000010438 heat treatment Methods 0.000 claims abstract description 89
- 238000001514 detection method Methods 0.000 claims abstract description 32
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000007423 decrease Effects 0.000 description 13
- 230000008859 change Effects 0.000 description 9
- 238000004891 communication Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 210000000232 gallbladder Anatomy 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000003287 bathing Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000005338 heat storage Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- 230000009885 systemic effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 210000000476 body water Anatomy 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2021—Storage heaters
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a kind of Thermostatic water heaters, including heating liner, valve body and control system, cold water inlet, cold water outlet pipe, hot water inlet pipe and water outlet pipe are provided on valve body, mixed water cavity is provided on valve body, mixed water cavity is connected to cold water inlet, hot water inlet pipe and water outlet pipe, temperature control valve (TCV) is installed in mixed water cavity, it is characterized in that：Warm water temperature detection device is installed on water outlet pipe, warm water temperature detection device is connected with control system, hot water temperature's detection device is provided in the heating liner, flow detector and flow control valve are provided on valve body, flow control valve is sequentially connected with flow valve driving unit, and hot water temperature's detection device, flow detector and flow valve driving unit are connect with control system.The Thermostatic water heaters automatically can limit water flow in cold water temperature and larger setting leaving water temperature difference, extend the constant-temperature effluent time in the case where guaranteeing user experience.
Description
Technical field
The present invention relates to continuous flowing heat hot water device, in particular to a kind of Thermostatic water heaters.
Background technique
Family life mainly passes through electric heater with warm water and is heated to obtain high-temperature water to municipal water supply at present, then with
The municipal water supply of low temperature carries out being mixed to get the warm water for being suitble to use.It is generally all carried out by water mixing valve when mixing, passes through change
The mixed proportion of high-temperature water and municipal water supply can be adjusted the temperature of warm water.It is most when water mixing valve being adjusted in the past
Using mechanical direct adjusting, automatically controlled mode is mostly used to carry out greatly now.
Such as Chinese patent（The patent No. 201110396052.1）Thermostatic faucet of electric water heater is provided, the electric heater constant temperature
Faucet is connected between the water equipments such as common heat storage water heater and shower, for realizing constant-temperature effluent.The electric heater is permanent
When in use, one, cold water into the faucet body enters in water heater warm faucet, and the hot water in water heater is ejected；Separately
One enters directly into thermostatic valve core, mixes with the hot water being ejected.When the leaving water temperature temperature of winter cold water temperature and setting
When difference difference is larger, the water temperature in water utilizing process in heat storage water heater understands rapid decrease, and when in heat storage water heater
After leaving water temperature reduces, in order to guarantee the effluent temperature constancy of the constant-temperature tap, the piston in thermostatic valve core can intake to cold water
Mouth direction is mobile, to reduce the flow area of cold water inlet, reduces ratio shared by cold water；In piston to cold water inlet
Direction will increase the flow area of water inlet of hot water while mobile, improve ratio shared by hot water.And the heat of water heater outflow
Water is cemented out by the cold water entered in water heater, and the ratio of hot water increases in thermostatic valve core, is entered accordingly
The amount of cold water in water heater also will increase, this can further speed up the water temperature drop in water heater.At this time in thermostatic valve core
Piston needs further to find to move to cold water inlet, is further reduced ratio shared by cold water, improves ratio shared by hot water
Example.And the piston sliding in thermostatic valve core has a limiting value, when piston moves to extreme position to cold water inlet discovery,
The flow area of cold water inlet and water inlet of hot water is no longer changed, at this time thermostatic valve core do not have change automatically it is cold and hot
Water mixed proportion makes leaving water temperature be maintained at the effect of setting value.The leaving water temperature of thermostatic valve core can be same lower than set temperature at this time
When constantly decline.When reflecting that will appear winter in actual use has a bath, after a certain period of time, leaving water temperature is with regard to unexpected for bathing
It continues to decline, and human body is lower for cold the degree of tolerance, water at low temperature leaching can generate user on user's body strong
Pessimal stimulation can seriously affect the usage experience of user.
Summary of the invention
It, can be in cold water temperature in view of the deficiencies of the prior art, the present invention intends to provide a kind of Thermostatic water heaters
When degree and larger setting leaving water temperature difference, water flow is limited automatically, is extended in the case where guaranteeing user experience
The constant-temperature effluent time.
Above-mentioned technical purpose of the invention technical scheme is that：A kind of Thermostatic water heaters, including
Heating liner, valve body and control system are provided with cold water inlet, cold water outlet pipe, hot water inlet pipe, water outlet pipe on valve body
With cold water branch pipe, cold water inlet is connected to cold water outlet pipe, cold water outlet pipe and hot water inlet pipe respectively with heating liner into
The mouth of a river is connected with water outlet；It is provided with mixed water cavity on valve body, temperature control valve (TCV) is installed in mixed water cavity, mixes water cavity and hot water is intake
Pipe and water outlet pipe connection, while mixed water cavity is connected to by cold water branch pipe with cold water inlet, it is characterized in that：Water outlet pipe
On warm water temperature detection device is installed, warm water temperature detection device is connected with control system, is provided with heat in the heating liner
Coolant-temperature gage detection device is provided with flow detector and flow control valve on valve body, and flow control valve is sequentially connected with flow
Valve driving unit, hot water temperature's detection device, flow detector and flow valve driving unit are connect with control system.
Through the above technical solutions, the setting of warm water temperature detection device can examine the water temperature of water outlet pipe
It surveys, then control system is adjusted temperature control valve (TCV) according to the difference of the practical leaving water temperature measured and set temperature, changes
The hot and cold water mixed proportion of temperature regulating valve column, so that the set temperature of actual leaving water temperature and control system be made to keep one
It is fixed.Hot water temperature's detection device is arranged in heating liner, can detect to the hot water temperature in heating liner, to control and be
System can record the temperature in heating liner, obtain the water temperature variable quantity in the heating liner in the unit time.Flow detection
Device can be set on cold water inlet, cold water outlet pipe, hot water inlet pipe or water outlet pipe, thus to the whole of valve body
The disengaging flow of body or the disengaging flow of heating liner are detected.
After the Thermostatic water heaters install, heating liner heats the water stored in it, reaches its temperature and keeps
In the setting value of control system.When starting with water, cold water is entered in heating liner by the water inlet of heating liner, at this time plus
Water temperature in hot gallbladder can change.If the cold water water temperature that the external world flows into heating liner is higher（Or the warm water with user's setting
Leaving water temperature is not much different）Within the scope of the heating efficiency of heating liner（Heating element work in heating liner is able to maintain heating
Water temperature in gallbladder does not decline）, then flow control valve does not limit the flow of water flow.If the water temperature in heating liner occurs more
Apparent decline, then control system is according to the power of heating element, flow detector, hot water temperature's detection device or heating
The power of element, flow detector, hot water temperature's detection device, warm water temperature detection device numerical value to cold water and warm water it
Between temperature difference calculated, and according to control system carry flow control data flow control valve is controlled, reduce
Water flow, the water flow of reduction water outlet pipe in the case where not seriously affecting user's experience.
Flow detector may be mounted at cold water inlet, cold water outlet pipe, hot water inlet pipe or water outlet pipe
On, to detect to the intracorporal water flow mobility status of valve, and know in valve body whether there is water flow flowing and water flow flowing
Size.Flow detector can play switch, water in the valve body that control system is detected according to flow detector
Stream the presence or absence of and open and close.
Simultaneously after control system work, flow detector can be acquired the intracorporal data on flows of valve and will stream
Amount data pass to control system.When flow detection rotary device be arranged in cold water inlet or water outlet pipe, can be right
The flow velocity of cold water inlet or water outlet pipe is detected.Assuming that during normal use warm water, inside heating liner
Water temperature continue to decline, the heating element in heating liner continues working at this time, while the temperature of water outlet pipe is in thermostatic valve core
Under the action of stablize in W.The temperature that hot water temperature's detection device detects when t1 in use is that G1 adds when arriving t2
Water temperature drop in hot gallbladder is to G2.Heating element is constantly in working condition during pond, and constant heating power is P, simultaneously
The volume of heating liner is L, and by the total flow Q in flow detector available this time, the specific heat capacity of water is C, is led to
Cross calculation formula：
(G2-G1)×C×L+P×（t2-t1）=Q×C×ΔT
Available Δ T, the value are the water temperature of water outlet pipe and the difference of cold water inlet water temperature.It is controlled after obtaining the value
System can be adjusted according to the value referring to the control data streams control valve stored inside the control system, make leaving water temperature
Under the premise of keeping constant, warm water water yield is gradually decreased under the premise of not seriously affecting usage experience, until by heating
The flow of gallbladder and the heating efficiency of heating element are adapted, and the water temperature in heating liner is made not continue to reduce.A side is designed in this way
Face can guarantee the constant-temperature effluent of warm water water outlet, avoid cold water stimulating to user, user is caused to generate undesirable usage experience；
On the other hand water yield can be gradually decreased in use, play the purpose for reminding user.
When flow control system is arranged on the water inlet or water outlet of heating liner, also can by formula to Δ T into
Row calculates,
Assuming that the temperature in heating liner is G1, cold water temperature T0 when t1；
When t2, the temperature in heating liner is G2；
Then C × (G1+G2)/2 × Q=C × Q × T0+ (G1-G2) × L × C+P × (t2-t1)
Then according to setting value W, Δ T can be obtained according to W-T0.
In addition, can be intake relative to directly being measured to the temperature of cold water inlet using this method to avoid cold water
The sudden change of water flow caused by the water temperature suddenly change of pipe.It, can be with the water in heating liner after cold water enters heating liner
It is mixed, to eliminate the variation of cold water short time significantly water flow caused by temperature change.
Preferably, the flow valve driving unit includes that flow adjusts motor, is mounted on flow adjusting motor output shaft
Driving gear, the driven gear being mounted on the valve rod of flow control valve, driving gear and driven gear engagement, flow adjust
Motor is stepping or servo motor.
Through the above technical solutions, control system more convenient, reliably can carry out automatically controlling flow control valve,
The water flow of the water heater is set to meet the requirement of control system.Using stepper motor or servo motor and driving gear, from
Moving gear cooperation controls flow control valve, and overall structure is relatively simple compact, while having preferable control precision.
It preferably, further include the temperature adjustment driving unit being sequentially connected with temperature control valve (TCV), temperature adjustment driving unit includes temperature adjustment
Motor, the driving gear being mounted on temperature adjustment motor, the driven gear being mounted on the valve rod of temperature control valve (TCV), temperature adjustment motor with
Control system connection, temperature control motor are stepping or servo motor.
Through the above technical solutions, can be more conveniently automatically controlled to leaving water temperature realization, user can directly control
Leaving water temperature is set in system.After water outlet temperature setting control system can leaving water temperature to temperature control valve (TCV) into
Row is adjusted, and is maintained at leaving water temperature in set temperature.Use stepper motor or servo motor and driving gear, driven gear
Cooperation controls temperature control valve (TCV), and overall structure is relatively simple compact, while having preferable control precision.
Preferably, the temperature control valve (TCV) is thermostatic valve core.
Through the above technical solutions, temperature control valve (TCV) is thermostatic valve core, after setting leaving water temperature in control system,
It only needs to carry out Primary regulation to thermostatic valve core to can ensure that the leaving water temperature of thermostatic valve core.When the temperature or pressure of hot and cold water
Piston when changing inside thermostatic valve core can the water inlet ratio automatically to hot and cold water be adjusted, make leaving water temperature always
It is maintained in setting value.If using common water mixing valve as temperature control valve (TCV), when cold and hot coolant-temperature gage and pressure change,
The valve rod for needing to rotate water mixing valve repeatedly, the mixed proportion of hot and cold water, which is adjusted, can just be such that leaving water temperature keeps constant.Make
The abrasion of temperature adjustment motor in use can be reduced with thermostatic valve core, extends the service life of temperature adjustment motor.
Preferably, the flow detector includes Hall element and magnet rotor, and Hall element is arranged on the outside of valve body,
Magnet rotor is arranged in the runner of cold water inlet or cold water outlet pipe or hot water inlet pipe or water outlet pipe.
The intracorporal water flow mobility status of valve can be detected more conveniently, when there is water flow flowing in valve flowing channel
When, magnet rotor rotates under the action of water flow, when magnet rotor rotates, is in the Hall element on the outside of valve body to magnetism
The revolving speed of rotor is detected, so that it is determined that whether having water flow flowing in runner.The flow detector is in hot-water heating industry
Universal component, it is especially universal in electric water heater, it directly can commercially obtain, therefore details are not described herein.
Preferably, the valve body includes water mixing valve body and cold water valve body, mixes water cavity and is arranged in water mixing valve body, cold water water inlet
Pipe, cold water outlet pipe and cold water branch pipe are on cold water valve body, and mixed water cavity is gone out by cold water branch pipe with cold water inlet and cold water
Water pipe connection.
Through the above technical solutions, the setting of cold water inlet, cold water outlet pipe and cold water branch pipe can form one three
Logical structure makes the thermostatic valve have the function of upper water, after cold water enters cold water valve body from cold water inlet, a-road-through subcooled water branch
Pipe flows to water mixing valve body, and another way is entered in heating liner by cold water water outlet pipe, so that the tap water needed for reducing connects
The mouth of a river facilitates installation.Simultaneously valve body split settings can simplify valve body structure, convenient for inlet and outlet pipes arrangement, facilitate valve body
Production and processing.
Preferably, the valve body further includes hot water valve body, and hot water inlet pipe and water outlet pipe are on hot water valve body, heat
It is additionally provided with hot water outlet pipe and warm water intake pipe on water valve body, hot water inlet pipe is mixed by hot water outlet pipe and water mixing valve body
Water cavity connection, water outlet pipe are connected to by warm water intake pipe with the mixed water cavity of water mixing valve body.
Through the above technical solutions, the setting of hot water valve body can make hot water inlet pipe, water outlet pipe arrangement more
Flexibly, enable cold water inlet and water outlet pipe position phase of the position of hot water inlet pipe and cold water outlet pipe with heating liner
It adapts to, to facilitate installation between the two.
Preferably, the cold water valve body and/or hot water valve body include cavity open at one end, and cold water branch is provided in cavity
Pipe perhaps stretch out from the closed end of cavity for connecting with water mixing valve body by hot water outlet pipe's cold water branch pipe or hot water outlet pipe one end
Logical, at the other end in the cavity, cavity hatch end is provided with plug, and strainer is provided between plug and inner pipe end.
Through the above technical solutions, can be filtered to the water entered in thermostatic valve core, avoid mixing in water consolidates
Body particle, which enters in thermostatic valve core, causes thermostatic valve core to damage.
Compared with prior art, beneficial effects of the present invention are：1, control system can be automatically right according to the temperature of setting
Hot and cold water mixed proportion is adjusted, and keeps constant leaving water temperature.Warm water can be discharged by warm water temperature detection device
The water temperature of pipe is detected, then by being compared with the water temperature of leaving water temperature set by user and water outlet pipe to temperature
The leaving water temperature of regulating valve is modified, and actual leaving water temperature is made to remain identical with leaving water temperature set by user.2,
Inflow temperature and leaving water temperature may be implemented in the increase of hot water temperature's detection device, flow detector and flow control spool
Differential thermal calculation gradually reduces the temperature drop rate in heating liner to be adjusted in real time according to the temperature difference of the two to flow,
Extend the constant-temperature effluent time, thus avoid using bathing process summarize leaving water temperature decline suddenly cause to human body generate by force
Strong stimulation, influences usage experience.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment；
Fig. 2 is the structural schematic diagram of embodiment valve body entirety；
Fig. 3 is the structural schematic diagram removed after temperature adjustment motor and flow adjusting motor in Fig. 2；
Fig. 4 is valve body structure schematic diagram；
Fig. 5 is valve body explosive view；
Fig. 6 is the schematic cross-section of valve body；
Fig. 7 is the structural schematic diagram of water mixing valve body；
Fig. 8 is the structural schematic diagram of hot water valve body；
Fig. 9 is the schematic cross-section of cold water valve body；
Figure 10 is the partial sectional view of heating liner.
Appended drawing reference：1, heating liner；13, heating element；14, hot water temperature's detection device；2, valve body；21, hot water valve body；
211, cavity；212, it is intubated；213, warm water is intubated；214, temperature-measuring port；22, cold water valve body；221, cavity；222, cold water branch pipe；
24, water inlet pipe；25, water mixing valve body；251, cold water casing；252, hot water casing；253, warm water casing；254, water cavity is mixed；255,
Hot water communication port；26, plug；27, strainer；28, flange seat；3, temperature control driving unit；31, temperature adjustment motor；32, driven gear；
33, thermostatic valve core；331, temperature control valve rod；34, driving gear；4, traffic driven unit；41, flow adjusts motor；42, driven tooth
Wheel；43, flow control valve core；431, flow valve rod；44, driving gear；5, flow detector；51, Hall element；52, magnetic
Property rotor；61, cold water inlet；62, water outlet pipe；63, cold water outlet pipe；64, hot water inlet pipe；65, water inlet；66,
Water outlet；7, warm water temperature detection device.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
As depicted in figs. 1 and 2, a kind of Thermostatic water heaters, including heating liner 1, valve body 2 and control system（Do not show in figure
Out）.It is provided with water inlet 65 and water outlet 66 on heating liner 1, heating element 13 and hot water temperature's inspection are both provided in heating liner 1
Device 14 is surveyed, thermocouple can be used in hot water temperature's detection device 14, and water temperature of the heating in 1 is converted to electric signal by thermocouple
Pass to control system.Water inlet 65 and water outlet 64 are provided on heating liner 1, cold water enters heating liner by water inlet 65
In 1, then flowed out after the heating element 13 in heating liner 1 heats from water outlet 66.Hot water temperature sensor 14 and control
System connection, to be detected to the water temperature in liner.When the water temperature in heating liner 1 is not up to control system predetermined temperature
When, the heating element that control system controls in heating liner 1 heats the water in heating liner 1, and the water temperature in heating liner 1 reaches
When control system predetermined temperature, control system controls 13 discontinuous operation of heating element in heating liner 1, by the temperature in heating liner 1
Degree maintains system predetermined temperature.
As shown in Fig. 2 ~ 4, cold water inlet 61, water outlet pipe 62, cold water outlet pipe 63, hot water are provided on valve body 2
The water inlet 65 of water inlet pipe 64, cold water outlet pipe 63 and heating liner 1 connects, the water outlet 66 of hot water inlet pipe 64 and heating liner 1
Connection.Valve body 2 includes water mixing valve body 25, cold water valve body 22 and hot water valve body 21, and cold water valve body 22 and hot water valve body 21 are plugged in
The two sides of water mixing valve body 25.Thermostatic valve core 33 is mounted on water mixing valve body 25, and cold water is divided into two-way after entering valve body 2, all the way
It is entered in heating liner 1 from cold water outlet pipe 63, another way is entered in thermostatic valve core 33 by water mixing valve body 25.Hot water outflow
Entered in thermostatic valve core 33 after heating liner 1 by the hot water inlet pipe 64 of valve body 2, hot water or cold water in thermostatic valve core 3 into
Row mixing, then flows out from the water outlet pipe 62 of valve body 2.
Mixed water cavity 254 is offered on water mixing valve body 25, thermostatic valve core 33 is mounted in mixed water cavity 254, thermostatic valve core 33
Temperature control valve rod 331 is in the outside of mixed water cavity 254 and is sequentially connected with temperature adjustment motor by driven gear 32, driving gear 34
31, stepper motor or servo motor can be used in temperature adjustment motor 31.Temperature adjustment motor 31 is connected with control system, is by control
System can control the rotation direction and rotational angle of temperature adjustment motor 31, so that temperature control valve rod 331 be driven to rotate, change constant temperature
The set temperature of spool 33.
As shown in fig. 7, water mixing valve body 25 includes the mixed water cavity 254 of vertical wall setting, the opening direction of water cavity 254 is mixed
On the outside of metope.Mixed 254 side of water cavity is provided with cold water casing 251 and hot water casing 252, in cold water casing 251 and mixed water cavity 254
Portion is connected to by hot water communication port 255, and hot water casing 252 is connected to inside mixed water cavity 254 by cold water communication port, cold water connection
It is staggered between mouth and hot water communication port 255.Thermostatic valve core 33 is mounted in mixed water cavity 254, the hot water of thermostatic valve core 33 into
The mouth of a river is connected to hot water communication port 255, while being separated with cold water communication port by sealing ring；The cold water of thermostatic valve core 33 into
The mouth of a river is connected to cold water communication port, while being separated by sealing ring with hot water communication port 255.So that from hot water casing
252 hot water entered enter the water inlet of hot water of thermostatic valve core 33, and the cold water entered from cold water casing 251 enters thermostatic valve
The cold water inlet of core 33, hot water or cold water will not be mixed outside thermostatic valve core 33.Hot water or cold water enters thermostatic valve
It is mixed in thermostatic valve core 33 after core 33, is then flowed out from the bottom of thermostatic valve core 33.It is additionally provided on water mixing valve body 25
Warm water casing 253, warm water casing 253 are in 252 lower section of hot water casing and are connected to mixed 254 bottom of water cavity.Mixed warm water
It is entered in warm water casing 253 after the outflow of 33 bottom of thermostatic valve core by mixed 254 bottom of water cavity.Thermostatic valve core 33 is in industry
General accessory can directly buy acquisition.The thermostatic valve core that can be used in documents in actual use also can be used
The perseverance as disclosed in the patent documents such as Patent No. 201380074664.6,201710690445.0 or 201210218398.7
The structure of warm spool.Thermostatic valve core 33 is used as the prior art, and details are not described herein.
Cold water valve body 22 includes a cavity 221, and cavity 221 is cylindrical in shape, and 221 one end of cavity is provided with another end seal of opening
It closes.A cold water branch pipe 222 is provided in cavity 221,222 one end of cold water branch pipe is stretched out from the closed end of cavity 221, cold water branch
222 other end of pipe is in inside cavity 221.One end that cold water branch pipe 222 stretches out cavity 221 is connect with cold water casing 251.Cavity
221 open ends are provided with plug 26, threaded sealing fit between plug 26 and cavity 221.Plug 26 and cold water branch pipe 222 are in
Strainer 27 is provided between one end end in cavity 221.It is connected to inside the cold water inlet of cold water valve body 22 and cavity 221,
It is connected to inside cold water outlet pipe 63 and cold water branch pipe 222.It is advanced after cold water enters cold water valve body 22 from cold water inlet 61
Enter into cavity 221 and is in 222 outside of cold water branch pipe, and backward 221 open end of cavity is flowed, and is then entered through filter screen 27
To inside cold water branch pipe 222.Cold water leads to water mixing valve body 25 after entering 222 inside of cold water branch pipe all the way, and another way is led to cold
Water outlet pipe 63.Cold water inlet 61 and 22 split settings of cold water valve body, the cavity 221 of cold water inlet 61 and cold water valve body 22
Between be attached by flange seat 28.Flow detector 5 is installed, to cold water inlet 61 on cold water inlet 61
Inside whether there is water flow flowing to be detected, flow detector 5 is connect with control system, when flow detector 5 detects
When water flow, control system controls temperature adjustment motor 31, warm water temperature detection device 7 and flow and adjusts the work of motor 41.Warm water temperature
Detection device 7 can be used the temperature-sensing probe made of thermocouple, and water temperature is converted to electric signal input control system when work.
Flow detector 5 can select common Hall flow meter on water heater, Hall flow meter can by directly buying acquisition,
Flow detector 5 includes Hall element 51 and magnet rotor 52, and magnet rotor 52 is arranged in cold water inlet 61, works as cold water
Magnet rotor 52 rotates when having water flow to flow through in water inlet pipe 62, and the Hall element 51 for being in the outside of cold water inlet 61 can be with
The rotation situation of magnet rotor 52 is incuded.Flow rate of water flow in the velocity of rotation and cold water inlet 61 of magnet rotor 52
Linear variation, so as to be detected to the water flow in cold water inlet 61.
As shown in Figure 6 and Figure 8, hot water valve body 21 includes a cavity 211, and cavity 211 is cylindrical in shape, and 211 one end of cavity is set
It is equipped with opening, other end closing.It is provided with a hot water outlet pipe 212 in cavity 211,212 one end of hot water outlet pipe is from cavity
211 closed end is stretched out, and 212 other end of hot water outlet pipe is in inside cavity 211.Hot water outlet pipe 212 stretches out cavity 211
One end is connect with hot water casing 252.211 open end of cavity is provided with plug 26, and thread seal is matched between plug 26 and cavity 211
It closes.Strainer 27 is provided between one end end that plug 26 and hot water outlet pipe 212 are in cavity 211.Hot water valve body 21
It is connected to inside hot water inlet pipe 64 and cavity 211.After hot water enters hot water valve body 21 from hot water inlet pipe 64, it is introduced into
In cavity 211 and it is in 212 outside of hot water outlet pipe, and backward 211 open end of cavity is flowed, and is then entered through filter screen 27
Inside hot water outlet pipe 212.Hot water, which enters behind 212 inside of hot water outlet pipe, is in 211 outside of cavity from hot water outlet pipe 212
One end flow out into water mixing valve body 25.
A warm water intake pipe 213 is additionally provided on hot water valve body 21, warm water intake pipe 213 is plugged in warm water casing 253
It is interior, it is provided with temperature-measuring port 214 on warm water intake pipe 213, is inserted in temperature-measuring port 214 for 213 internal water of warm water intake pipe
The warm water temperature detection device 7 that temperature is detected.Water outlet pipe 62, water outlet pipe are provided with below warm water intake pipe 213
It is attached between 62 and hot water valve body 21 by flange seat 28.Flow control valve core 43 is installed on water outlet pipe 62, is flowed
The flow that the flow valve rod 331 that 43 side of adjustable valve core is provided with driving flow control valve core 43 rotates adjusts motor 41, stream
Amount, which adjusts motor 41, can be used stepper motor or servo motor.Flow adjusts motor 41 and connect with control system.Pass through control
System processed can control the rotation direction and rotational angle that flow adjusts motor 41, to drive the flow of flow control valve core 43
Valve rod 431 rotates, and then changes the through-current capacity of flow control valve core 43, achievees the purpose that control water yield.Flow control valve core
43 can be used the flow spool in documents, can also be by buying acquisition in the market.Flow spool is as wage technology
This is repeated no more again.
Control system includes circuit board and chip, and control system has data acquisition, writing function, calculation function and shows
The function of temperature displaying function and flow can survey warm water temperature that warm water temperature detection device 7 measures, hot water temperature's detection device 14
The flow that the hot water temperature and flow detector 5 obtained measures records, and is carried out according to these data to required Δ T
It calculates.Control system also has the function of storing data simultaneously, the flow control data of Δ T that can be different to multiple groups in advance into
Row storage, after calculating the value of Δ T, control system searches temperature flow control data or function at Δ T, then
Water flow is searched or calculated according to the temperature in heating liner 1 at this time, is then controlled by flow valve driving unit 4
Water flow is adjusted in flow control valve 43, and water flow is made to meet lookup or calculated numerical value.It is real on the whole
Gradually decrease the flow of water outlet pipe 62 as the water temperature in heating liner 1 reduces.Constant temperature is considered in setting in this way
On the other hand the requirement of water outlet also can preferably extend the constant-temperature effluent time, promote the usage experience used.
When installation, the cold water inlet 61 of valve body 2 is connect with water supply pipe, water outlet pipe 62 and one or more
The connection of the water equipments such as shower or tap.After the Thermostatic water heaters connect water route and are powered, control system opens immediately
It is dynamic, the temperature in heating liner 1 is detected, if the water temperature in heating liner 1 does not reach the preset value of control system, is controlled
System control heating element 13 heats the water in heating liner 1, until the water temperature in heating element 13 reaches systemic presupposition
Value, subsequent control system control 13 intermittent work of heating element, the water temperature in heating liner 1 are made to maintain systemic presupposition value.
When not having water flow on cold water inlet 61, flow detector 5 can not detect water flow, at this time at control system
In dormant state；When there is water flow flowing on cold water inlet 61, signal is passed to control system by flow detector 5, control
System starts processed, and the practical leaving water temperature and flow that will test are shown.User can be in control system at this time
Leaving water temperature is set.Then control system can be counted according to the difference of practical leaving water temperature and setting leaving water temperature
It calculates, and makes thermostatic valve core 33 occur quantitatively to rotate by temperature adjustment motor 31, keep leaving water temperature identical as setting leaving water temperature.
Control system starts timing and to water flow, the hot water temperature's detection device measured to flow detector 5 simultaneously
The warm water leaving water temperature that 14 hot water temperatures that measure, warm water temperature detection device 7 measure records, if the water in heating liner 1
Temperature decline then calculates the temperature difference Δ T between inflow temperature and set water temperature.After obtaining Δ T, control system is according to the model of Δ T
It encloses value to be called data pre-stored in system or control function, then according to hot water temperature's value in heating liner 1
A corresponding flow value is obtained, motor 41 is then adjusted by flow, actual flow is adjusted, meet actual flow
Calculated value or calling value.In the process, the leaving water temperature of water outlet pipe 62 will not change, but with heating liner
Water temperature in 1 gradually decreases, and the flow of warm water water outlet 66 is gradually lowered.Setting can comprehensively consider constant-temperature effluent in this way
It is required that the usage experience with user.Since maximum power is determining when electric heating gallbladder 1 works, if cold water temperature goes out with what is set
Coolant-temperature gage temperature difference T is larger, and the heating efficiency that will lead to is not able to satisfy the demand for using water immediately, at this time the water temperature in heating liner 1
It can be gradually reduced, if not limiting water flow, the water temperature in heating liner 1 understands rapid decrease, leads to whole constant temperature
Water discharging time is shorter.If the water temperature in heating liner 1 has just begun to decline the heating efficiency being just restricted to water flow with heating liner 1
Adaptable degree（Warm water flow velocity is equal to 1 power of heating liner multiplied by the specific heat capacity of water multiplied by temperature rise）, then will lead to water flow
It declines to a great extent, although constant-temperature effluent can be kept for a long time at this time, user experience can be seriously affected.And it is discharged warm water
The flow of pipe 62 is gradually decreased with the decline of the water temperature in heating liner 1, on the one hand can slow down the water temperature drop in heating liner 1
On the other hand speed also can make most of user complete bathing under relatively large water flow.
If the higher leaving water temperature with setting of cold water temperature is closer in actual use, and in use
Temperature in heating liner 1 does not reduce, then control system does not limit flow.
After tap is closed, flow detector 5 does not sense water flow, and control system receives after flow is 0, no
It powers again to warm water outlet water temperature detecting device and receives signal, be at off-state.Control system is also no longer controlled simultaneously
Temperature adjustment motor 31 and flow processed adjust motor 41.
The above is only exemplary embodiment of the invention, protection scope and is not intended to limit the present invention, this hair
Bright protection scope is determined by the attached claims.
Claims (8)
1. a kind of Thermostatic water heaters, including heating liner (1), valve body (2) and control system, cold water water inlet is provided on valve body (2)
Pipe（61）, cold water outlet pipe (63), hot water inlet pipe (64), water outlet pipe（62）With cold water branch pipe（222）, cold water inlet
(61) it is connected to cold water outlet pipe (63), cold water outlet pipe (63) and hot water inlet pipe (64) water inlet with heating liner (1) respectively
Mouth (65) and water outlet (66) connection；It is provided with mixed water cavity (254) on valve body (2), temperature adjusting is installed in mixed water cavity (254)
Valve（33）, mix water cavity (254) and hot water inlet pipe (64) and water outlet pipe（62）Connection, while mixed water cavity（254）By cold
Water branch pipe（222）With cold water inlet（61）Connection, it is characterized in that：Water outlet pipe（62）On be equipped with warm water temperature detection dress
It sets（7）, warm water temperature detection device（7）It is connected with control system, is provided with hot water temperature's detection device in the heating liner (1)
（14）, flow detector (5) and flow control valve are provided on valve body (2)（43）, flow control valve（43）It is sequentially connected with
Flow valve driving unit（4）, hot water temperature's detection device（14）, flow detector (5) and flow valve driving unit (4) with
Control system connection.
2. Thermostatic water heaters according to claim 1, it is characterized in that：The flow valve driving unit（4）Including flow tune
Save motor（41）, be mounted on flow adjust motor（41）Driving gear on output shaft（44）, it is mounted on flow control valve (43)
Valve rod (4431) on driven gear (42), driving gear (44) and driven gear (42) engagement, flow adjust motor（41）
For stepping or servo motor.
3. Thermostatic water heaters according to claim 1 or 2, it is characterized in that：Further include and temperature control valve (TCV)（33）Transmission connects
The temperature adjustment driving unit connect（3）, temperature adjustment driving unit（3）Including temperature adjustment motor（31）, be mounted on temperature adjustment motor（31）On master
Moving gear（34）, be mounted on temperature control valve (TCV)（33）Valve rod（331）On driven gear（32）, temperature adjustment motor（31）With control
System connection, temperature adjustment motor（31）For stepping or servo motor.
4. Thermostatic water heaters according to claim 1, it is characterized in that：The temperature control valve (TCV)（33）For thermostatic valve core
（33）.
5. Thermostatic water heaters according to claim 1, it is characterized in that：The flow detector (5) includes Hall element
(51) it is arranged in valve body (2) outside, magnet rotor (52) in cold water inlet with magnet rotor (52), Hall element (51) setting
（61）Or cold water outlet pipe（63）Or hot water inlet pipe（64）Or water outlet pipe（62）Runner in.
6. Thermostatic water heaters according to claim 1, it is characterized in that：The valve body (2) includes water mixing valve body（25）With it is cold
Water valve body（22）, mix water cavity（254）It is arranged in water mixing valve body（25）It is interior, cold water inlet（61）, cold water outlet pipe（63）With it is cold
Water branch pipe（222）It is in cold water valve body（22）On, mix water cavity（254）Pass through cold water branch pipe（222）With cold water inlet（61）And
Cold water outlet pipe（63）Connection.
7. Thermostatic water heaters according to claim 6, it is characterized in that：The valve body（2）It further include hot water valve body（21）, heat
Water water inlet pipe（64）And water outlet pipe（62）It is in hot water valve body（21）On, hot water valve body（21）On be additionally provided with hot water effluent
Pipe（212）And warm water intake pipe（213）, hot water inlet pipe（64）Pass through hot water outlet pipe（212）With water mixing valve body（25）It is mixed
Water cavity（254）Connection, water outlet pipe（62）Pass through warm water intake pipe（2123）With water mixing valve body（25）Mixed water cavity（254）Even
It is logical.
8. Thermostatic water heaters according to claim 7, it is characterized in that：The cold water valve body (22) and/or hot water valve body
(21) include cavity open at one end (221,211), be provided with cold water branch pipe in cavity (221,211)（222）Or hot water goes out
Water pipe（212）, cold water branch pipe（222）Or hot water outlet pipe（212）One end is stretched out from the closed end of cavity (221,211) to be used for
It is connected to water mixing valve body (25), the other end is in cavity (221,211), and cavity (221,211) open end is provided with plug
(26), strainer (27) are provided between plug (26) and inner tube (222,212) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810834230.6A CN108870760A (en) | 2018-07-26 | 2018-07-26 | A kind of Thermostatic water heaters |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810834230.6A CN108870760A (en) | 2018-07-26 | 2018-07-26 | A kind of Thermostatic water heaters |
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Family
ID=64305275
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| CN201810834230.6A Pending CN108870760A (en) | 2018-07-26 | 2018-07-26 | A kind of Thermostatic water heaters |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110779219A (en) * | 2019-11-05 | 2020-02-11 | 宁波方太厨具有限公司 | Water heater and water temperature control method thereof |
| CN110887225A (en) * | 2019-11-28 | 2020-03-17 | 广东万家乐燃气具有限公司 | Vertical double-liner water heater |
| TWI706115B (en) * | 2019-05-22 | 2020-10-01 | 吳承浩 | Electric water heater system with adjustable water temperature and reduced heat loss |
| CN112325472A (en) * | 2020-09-23 | 2021-02-05 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater, control method of electric water heater and storage medium |
| CN112682965A (en) * | 2019-10-17 | 2021-04-20 | 宁波方太厨具有限公司 | Water temperature adjusting device and water heater comprising same |
| CN113154692A (en) * | 2021-05-25 | 2021-07-23 | 华帝股份有限公司 | Constant temperature control method and device |
| CN114294817A (en) * | 2021-12-03 | 2022-04-08 | 华帝股份有限公司 | Electric water heater and control method thereof |
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| CN112325472A (en) * | 2020-09-23 | 2021-02-05 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater, control method of electric water heater and storage medium |
| CN113154692A (en) * | 2021-05-25 | 2021-07-23 | 华帝股份有限公司 | Constant temperature control method and device |
| CN114294817A (en) * | 2021-12-03 | 2022-04-08 | 华帝股份有限公司 | Electric water heater and control method thereof |
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