CN104455684B - A kind of temperature automatic control mixing valve for water heater - Google Patents

A kind of temperature automatic control mixing valve for water heater Download PDF

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Publication number
CN104455684B
CN104455684B CN201410615114.7A CN201410615114A CN104455684B CN 104455684 B CN104455684 B CN 104455684B CN 201410615114 A CN201410615114 A CN 201410615114A CN 104455684 B CN104455684 B CN 104455684B
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CN
China
Prior art keywords
water inlet
inlet hole
temperature
hot water
spool
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Expired - Fee Related
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CN201410615114.7A
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Chinese (zh)
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CN104455684A (en
Inventor
梅长云
汪朝晖
高全杰
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Wuhan University of Science and Engineering WUSE
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Wuhan University of Science and Engineering WUSE
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Priority to CN201410615114.7A priority Critical patent/CN104455684B/en
Publication of CN104455684A publication Critical patent/CN104455684A/en
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Publication of CN104455684B publication Critical patent/CN104455684B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • F16K11/0712—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides comprising particular spool-valve sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)

Abstract

The present invention relates to a kind of temperature automatic control mixing valve for water heater.Its technical scheme is: be provided with square cavity (6) and cylindrical cavity (17) in valve body (1), the top of cylindrical cavity (17) is provided with spherical hollow space (2), and bottom is provided with the first hot water inlet hole (15) and the first cold water inlet hole (14).Spherical hollow space (2) top blend the mouth of a river (4) place equipped with temperature sensor (3), the cylindrical cavity (17) of valve body (1) is equipped with spool (12), drive part is arranged in described square cavity (6), the output shaft of micro servo motor (18) is connected with spool (12) by connecting rod equipped with gear (7), the tooth bar (11) engaged with gear (7).The control panel (20) of valve body (1) controls software built with single-chip microcomputer (19), single-chip microcomputer (19) with temperature；Single-chip microcomputer (19) port C, D are corresponding with the positive and negative interface of micro servo motor (18) to be connected, and single-chip microcomputer (19) port E is connected with temperature sensor (3).The present invention have easy to operate, automaticity is high and temperature control accurate feature.

Description

A kind of temperature automatic control mixing valve for water heater
Technical field
The invention belongs to temp. automatic control valve technical field.It is specifically related to a kind of temperature automatic control for water heater Mixing valve.
Technical background
At present, the agent technology of water heater tends to ripe, is commonly used.Mixing valve is that water heater is highly important Temperature control equipment, is directly connected to people and uses the comfort level of hot water.
" a kind of ceramic valve plate assembly and the water mixing valve equipped with this assembly " (ZL200610000129.8) patent skill Art, this technology includes valve body, handle, ceramic cartridge and is arranged on the hot and cold water hybrid chamber below ceramic cartridge.This ceramic cartridge Flow and water inlet ratio to hot and cold water can mediate simultaneously, solve the adjustable problem of discharge." a kind of hot and cold water mixes The handle of the tap closed " (ZL201310252909.1) patented technology, the body of this technology includes operation part and connecting portion Point, the two side of described coupling part is provided with left hole and right hole；Also include the hot water slug of redness and blue cold water slug, Hot water slug and cold water slug removably connect with left hole and right hole respectively.This handle provides the tap of a kind of hot and cold water mixing Handle, it can distinguish cold water and hydrothermal area, easy to install and use.
Although above-mentioned various water mixing valve is at regulation hot and cold water flow and is mixed with certain effect, but must pass through hand The rotation of handle adjusts the temperature at the mouth of a river, in use, the situation that temperature is sometimes hot and sometimes cold, and regulation process often occurs Trouble, temperature control precision is low.
Summary of the invention
It is contemplated that overcome prior art shortcoming, it is therefore an objective to offer one is easy to operate, automaticity is high and temperature Control the accurate temperature automatic control mixing valve for water heater.
For achieving the above object, the technical solution used in the present invention is: described mixing valve includes valve body, spool, temperature control System part and drive part.The cylindrical cavity of valve body, equipped with spool, the face of cylinder at the close two ends of spool is respectively provided with Sealing ring, the mixing water outlet at the spherical hollow space top of valve body is equipped with temperature sensor, and drive part is arranged on the side of valve body In shape cavity, spool is connected by connecting rod with drive part, and end cap is bolted to connection with the openend of valve body, valve body Surface equipped with temprature control unit.
The structure of valve body is: one end of valve body is blind end, and the other end is openend.Openend ecto-entad has successively Square cavity and cylindrical cavity, the top of cylindrical cavity is provided with spherical hollow space, and the top of spherical hollow space is provided with mixing water outlet Mouthful, the bottom of cylindrical cavity is provided with the first hot water inlet hole and the first cold water inlet hole, the first hot water inlet hole and first cold Water inlet opening is positioned at the both sides, underface blending the mouth of a river, and cylindrical cavity communicates with spherical hollow space and square cavity respectively.Ball The centre of sphere of shape cavity is positioned at the 1/2 of cylindrical empty cavity length, the length of the centre of sphere distance cylindrical empty cavity axis of spherical hollow space Radius r with cylindrical cavity0Equal, the centre of sphere of spherical hollow space and cylindrical empty cavity axis are positioned at same vertical guide, spherical sky Spherical radius r in chamber1For cylindrical cavity radius r01.1 ~ 1.3 times.
Described drive part is made up of installing rack, tooth bar, gear and micro servo motor.The micro servo motor side of being fixed on In shape cavity, the output shaft of micro servo motor is equipped with gear, and installing rack is fixed on the bottom of described square cavity, and tooth bar is movable Be arranged on the upper plane of installing rack, rack and pinion engages, and tooth bar is connected with spool by connecting rod, and travel switch is fixed on The right-hand member of installing rack.
Spool is cylinder, is provided with annular seal groove at cylindrical two ends, diametrically has in cylinder Two hot water inlet holes and the second cold water inlet hole, the second hot water inlet hole and pitch-row L of the second cold water inlet hole4With valve body One hot water inlet hole and pitch-row L of the first cold water inlet hole2Equal, the second hot water inlet hole and the pitch-row of the second cold water inlet hole L4It is the aperture d of the second hot water inlet hole23.1 ~ 3.2 times.The aperture d of the second hot water inlet hole2, second cold water inlet hole Aperture d2, the aperture d of the first hot water inlet hole1Aperture d with the first cold water inlet hole1Equal.
The control panel of temprature control unit controls software built with single-chip microcomputer, single-chip microcomputer with temperature.One-chip machine port A Being connected with control panel, one-chip machine port B is connected with travel switch, and one-chip machine port C, D connect with the positive and negative of micro servo motor Mouth is corresponding to be connected, and one-chip machine port E is connected with temperature sensor.
Described blind end has steam vent；Described end cap has steam vent；The rated voltage of described micro servo motor is 6V。
Effluent trough is had, the width b of effluent trough and degree of depth h of effluent trough on the left of the delivery port of described first hot water inlet hole It is the first hot water inlet hole aperture d1, length L of effluent trough1It is the first hot water inlet hole aperture d11.5 times；First cold water The effluent trough of inlet opening and the effluent trough of the first hot water inlet hole are symmetrical arranged.
Length L of the distance between center line spool left side of described second hot water inlet hole3With in the second cold water inlet hole Length L of heart linear distance spool right side5Equal, described length L5It is the second hot water inlet hole aperture d23 ~ 3.5 times.
Described temperature controls the main flow of software:
S-1, initialization；
S-2, temperature range T is set1~T2, T2＞ T1；
S-3, the observed temperature T of temperature sensor；
If S-4 is T1 TT2, then S-5 is performed；If T is ＞ T2, then S-6 is performed；If T is ＜ T1, then S-7 is performed；
S-5, micro servo motor enter resting state；
S-6, micro servo motor main story, spool moves to right, and blends outlet water temperature and reduces, returns S-3 step；
S-7, micro servo motor anti-pass, spool moves to left, and blends outlet water temperature and raises, returns S-3 step；
S-8, end.
The course of work of the present invention is as follows:
Before startup, spool is positioned at low order end, and tooth bar contacting travel switchs, and cuts off the electricity supply.During use, the most on the control panel Input uses temperature range, then micro servo motor rotates forward, and by the movement of gear driven tooth bar, spool moves to left, and makes at spool In the first cold water inlet hole and the position of first hot water inlet hole's standard-sized sheet.
When the observed temperature of temperature sensor is less than design temperature scope, signal is passed to single-chip microcomputer, Single-chip Controlling Micro servo motor, makes micro servo motor rotate forward, and is moved by gear driven tooth bar, and spool moves to left, and makes the first cold water water inlet The delivery port in hole reduces, and the delivery port of the first hot water inlet hole is constant, so that mixing outlet temperature raises, reaches setting Temperature range；Signal is fed back to single-chip microcomputer by temperature sensor again, and Single-chip Controlling motor enters resting state, uses water temperature Degree reaches stable.
When the temperature of temperature sensor actual measurement is higher than design temperature scope, signal is passed to single-chip microcomputer, Single-chip Controlling Micro servo motor, makes micro servo motor invert, and is moved by gear driven tooth bar, and spool moves to right, and makes the first hot water water inlet The delivery port in hole reduces, and the delivery port of the first cold water inlet hole is constant, so that mixing outlet temperature reduces, reaches setting Temperature range；Signal is fed back to single-chip microcomputer by temperature sensor again, and Single-chip Controlling motor enters resting state, uses water temperature Degree reaches stable.
At the end of using, ceased and desisted order to single-chip microcomputer input by control panel, Single-chip Controlling micro servo motor Reversion, is moved by gear driven tooth bar, and spool moves to right, and makes the first hot water inlet hole and the first cold water inlet hole be turned off, tooth The travel switch of bar contact right-hand member, cuts off the electricity supply.
The present invention compared with prior art, has following remarkable advantage and a beneficial effect:
1, the present invention is easy to operate, controls accurately, and single-chip microcomputer and temperature sensor can keep leaving water temperature to tend towards stability, Without manual operations, automaticity is high.
2, the present invention uses temperature sensor can carry out temperature feedback accurately, makes micro servo motor enter the first cold water It is more accurate that water hole and the water yield of the first hot water inlet hole control, and then keeps the temperature blending the mouth of a river the most stable.
3, the cylindrical spool that the present invention uses is good with the sealing effectiveness of valve body, controls convenient.It is widely used in house Front yard, hotel or other public places, be also applied for liquid or the gas of two kinds of different temperatures mixing.
Therefore, the present invention have easy to operate, automaticity is high and temperature control accurate feature.
Accompanying drawing explanation
Fig. 1 is a kind of structure cross-sectional schematic of the present invention；
Fig. 2 is the A-A section enlarged diagram of Fig. 1；
Fig. 3 is the generalized section of valve body 1 in Fig. 1；
Fig. 4 is that the B-B in Fig. 3 is to generalized section；
Fig. 5 is the generalized section of spool 12 in Fig. 1；
Fig. 6 is that a kind of temperature of the present invention controls schematic diagram；
Fig. 7 is the main flow chart of a kind of temperature control software of the present invention；
Fig. 8 is present invention schematic diagram when quitting work.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described, not to the limit seeking protection domain System.
Embodiment 1
A kind of temperature automatic control mixing valve for water heater.As illustrated in figures 1 and 8, described mixing valve includes valve body 1, spool 12, temprature control unit and drive part.The cylindrical cavity 17 of valve body 1 is equipped with spool 12, close the two of spool 12 Sealing ring 5 it is respectively provided with, blending at the mouth of a river 4 equipped with TEMP of spherical hollow space 2 top of valve body 1 on the face of cylinder at end Device 3, drive part is arranged in the square cavity 6 of valve body 1, and spool 12 is connected by connecting rod with drive part, end cap 8 and valve The openend of body 1 is bolted to connection, and the surface of valve body 1 is equipped with temprature control unit.
The structure of valve body 1 is as shown in Figure 3 and Figure 4: one end of valve body 1 is blind end, and the other end is openend.Openend by Having square cavity 6 and cylindrical cavity 17 the most successively, the top of cylindrical cavity 17 is provided with spherical hollow space 2, spherical sky The top in chamber 2 is provided with and blends the mouth of a river 4, and the bottom of cylindrical cavity 17 is provided with the first hot water inlet hole 15 and the water inlet of the first cold water Hole 14, the first hot water inlet hole 15 and the first cold water inlet hole 14 are positioned at the both sides, underface blending the mouth of a river 4, cylindrical cavity 17 communicate with spherical hollow space 2 and square cavity 6 respectively.As depicted in figs. 1 and 2, the centre of sphere of spherical hollow space 2 is positioned at cylindrical cavity At the 1/2 of 17 length, the length of centre of sphere distance cylindrical cavity 17 axis of spherical hollow space 2 and the radius r of cylindrical cavity 170 Equal, the centre of sphere of spherical hollow space 2 and cylindrical cavity 17 axis are positioned at same vertical guide, spherical radius r of spherical hollow space 21For Cylindrical cavity 17 radius r01.1 ~ 1.2 times.
As illustrated in figures 1 and 8, described drive part is by installing rack 10, tooth bar 11, gear 7 and micro servo motor 18 structure Become.Micro servo motor 18 is fixed in square cavity 6, and the output shaft of micro servo motor 18 is equipped with gear 7, and installing rack 10 is solid Being scheduled on the bottom of described square cavity 6, tooth bar 11 is movably arranged as the upper plane of installing rack 10, and tooth bar 11 engages with gear 7, Tooth bar 11 is connected with spool 12 by connecting rod, and travel switch 9 is fixed on the right-hand member of installing rack 10.
As it is shown in figure 5, spool 12 is cylinder, at cylindrical two ends, it is provided with annular seal groove, along straight in cylinder Direction, footpath has the second hot water inlet hole 16 and the second cold water inlet hole 13, the second hot water inlet hole 16 and the second cold water inlet hole Pitch-row L of 134The first hot water inlet hole 15 and pitch-row L of the first cold water inlet hole 14 with valve body 12Equal, the second hot water water inlet Hole 16 and pitch-row L of the second cold water inlet hole 134It is the aperture d of the second hot water inlet hole 1623.1 ~ 3.2 times.Second hot water enters The aperture d in water hole 162, the aperture d of the second cold water inlet hole 132, the aperture d of the first hot water inlet hole 151With the first cold water water inlet The aperture d in hole 141Equal.
As shown in Figure 6, the control panel 20 of temprature control unit is built with single-chip microcomputer 19, and single-chip microcomputer 19 is with temperature control Software.Single-chip microcomputer 19 port A is connected with control panel 20, and single-chip microcomputer 19 port B is connected with travel switch 9, single-chip microcomputer 19 port C, D are corresponding with the positive and negative interface of micro servo motor 18 to be connected, and single-chip microcomputer 19 port E is connected with temperature sensor 3.
As illustrated in figures 1 and 8, described blind end has steam vent；Described end cap 8 has steam vent.Described miniature servo The rated voltage of motor 18 is 6V.
As shown in Figure 3 and Figure 4, effluent trough is had on the left of the delivery port of described first hot water inlet hole 15, the width of effluent trough Degree of depth h of degree b and effluent trough is the first hot water inlet hole 15 aperture d1, length L of effluent trough1It is the first hot water inlet hole 15 Aperture d11.5 times；The effluent trough of the first cold water inlet hole 14 and the effluent trough of the first hot water inlet hole 15 are symmetrical arranged.
As it is shown in figure 5, length L of distance between center line spool 12 left side of described second hot water inlet hole 163With second Length L of distance between center line spool 12 right side of cold water inlet hole 135Equal, described length L5It is the second hot water inlet hole 16 Aperture d23.0 ~ 3.3 times.
Described temperature controls the main flow of software as shown in Figure 7:
S-1, initialization；
S-2, temperature range T is set1~T2, T2＞ T1；
S-3, the observed temperature T of temperature sensor 3；
If S-4 is T1 TT2, then S-5 is performed；If T is ＞ T2, then S-6 is performed；If T is ＜ T1, then S-7 is performed；
S-5, micro servo motor 18 enter resting state；
S-6, micro servo motor 18 main story, spool 12 moves to right, and blends the mouth of a river 4 water temperature and reduces, returns S-3 step；
S-7, micro servo motor 18 anti-pass, spool 12 moves to left, and blends the mouth of a river 4 water temperature and raises, returns S-3 step；
S-8, end.
Embodiment 2
A kind of temperature automatic control mixing valve for water heater.In addition to following technical parameter, remaining same embodiment:
Spherical radius r of described spherical hollow space 21For cylindrical cavity 17 radius r01.2 ~ 1.3 times.
Length L of distance between center line spool 12 left side of described second hot water inlet hole 163With the second cold water inlet hole Length L of distance between center line spool 12 right side of 135Equal, described length L5It is the second hot water inlet hole 16 aperture d23.2 ~ 3.5 times.
The course of work of this detailed description of the invention is:
Before startup as shown in Figure 8, spool 12 is positioned at low order end, tooth bar 11 contacting travel switch 9, cuts off the electricity supply.During use, Input uses temperature range the most on control panel 20, then micro servo motor 18 rotates forward, and is moved by gear 7 band carry-over bar 11 Dynamic, spool 12 moves to left.As it is shown in figure 1, spool 12 is in the first cold water inlet hole 14 and position of the first hot water inlet hole 15 standard-sized sheet Put.
When the observed temperature of temperature sensor 3 is less than design temperature scope, signal is passed to single-chip microcomputer 19, single-chip microcomputer 19 Controlling micro servo motor 18, make micro servo motor 18 rotate forward, moved by gear 7 band carry-over bar 11, spool 12 moves to left, and makes The delivery port of the first cold water inlet hole 14 reduces, and the delivery port of the first hot water inlet hole 15 is constant, so that blending the mouth of a river 4 temperature Degree raises, and reaches the temperature range set；Signal is fed back to single-chip microcomputer 19 by temperature sensor 3 again, and single-chip microcomputer 19 controls electronic Machine 18 enters resting state, makes leaving water temperature reach stable.
When the temperature of temperature sensor 3 actual measurement is higher than design temperature scope, signal is passed to single-chip microcomputer 19, single-chip microcomputer 19 Controlling micro servo motor 18, make micro servo motor 18 invert, moved by gear 7 band carry-over bar 11, spool 12 moves to right, and makes The delivery port of the first hot water inlet hole 15 reduces, and the delivery port of the first cold water inlet hole 14 is constant, so that blending the mouth of a river 4 temperature Degree reduces, and reaches the temperature range set；Signal is fed back to single-chip microcomputer 19 by temperature sensor 3 again, and single-chip microcomputer 19 controls electronic Machine 18 enters resting state, makes leaving water temperature reach stable.
At the end of using, being ceased and desisted order to single-chip microcomputer 19 input by control panel 20, single-chip microcomputer 19 controls miniature watching Taking motor 18 to invert, by the movement of gear 7 band carry-over bar 11, spool 12 moves to right, as shown in Figure 8.First hot water inlet hole 15 Being turned off with the first cold water inlet hole 14, tooth bar 11 contacts the travel switch 9 of right-hand member, cuts off the electricity supply.
This detailed description of the invention compared with prior art, has following remarkable advantage and a beneficial effect:
1, this detailed description of the invention is easy to operate, controls accurately, and single-chip microcomputer 19 and temperature sensor 3 can keep water temperature Degree tends towards stability, it is not necessary to manual operations, and automaticity is high.
2, this detailed description of the invention uses temperature sensor 3 can carry out temperature feedback accurately, makes micro servo motor 18 The water yield of the first cold water inlet hole 14 and the first hot water inlet hole 15 is controlled more accurately, and then keeps blending the mouth of a river 4 Temperature the most stable.
3, the cylindrical spool 12 that this detailed description of the invention uses is good with the sealing effectiveness of valve body 1, controls convenient.Extensively General it is applicable to family, hotel or other public places, is also applied for liquid or the gas of two kinds of different temperatures mixing.
Therefore, this detailed description of the invention have easy to operate, automaticity is high and temperature control accurate feature.

Claims (7)

1. the temperature automatic control mixing valve for water heater, it is characterised in that described mixing valve includes valve body (1), spool (12), temprature control unit and drive part；The cylindrical cavity (17) of valve body (1) is equipped with spool (12), leaning on of spool (12) Being respectively provided with sealing ring (5) at two close end, the mouth of a river (4) place that blends at spherical hollow space (2) top of valve body (1) passes equipped with temperature Sensor (3), drive part is arranged in the square cavity (6) of valve body (1), and spool (12) is with drive part by connecting rod even Connecing, end cap (8) is bolted to connection with the openend of valve body (1), and the surface of valve body (1) is equipped with temprature control unit；
The structure of valve body (1) is: one end of valve body (1) is blind end, and the other end is openend；Openend ecto-entad is opened successively Having square cavity (6) and cylindrical cavity (17), the top of cylindrical cavity (17) is provided with spherical hollow space (2), spherical hollow space (2) Top be provided with and blend the mouth of a river (4), the bottom of cylindrical cavity (17) is provided with the first hot water inlet hole (15) and the first cold water Inlet opening (14), the first hot water inlet hole (15) and the first cold water inlet hole (14) are positioned at the underface two blending the mouth of a river (4) Side, cylindrical cavity (17) communicates with spherical hollow space (2) and square cavity (6) respectively；The centre of sphere of spherical hollow space (2) is positioned at cylinder At the 1/2 of shape cavity (17) length, the length of centre of sphere distance cylindrical cavity (17) axis of spherical hollow space (2) and cylindrical empty The radius r in chamber (17)0Equal, the centre of sphere of spherical hollow space (2) and cylindrical cavity (17) axis are positioned at same vertical guide, spherical sky Spherical radius r in chamber (2)1For cylindrical cavity (17) radius r01.1～1.3 times；
Described drive part is made up of installing rack (10), tooth bar (11), gear (7) and micro servo motor (18)；Miniature servo Motor (18) is fixed in square cavity (6), and the output shaft of micro servo motor (18) is equipped with gear (7), and installing rack (10) is solid Being scheduled on the bottom of described square cavity (6), tooth bar (11) is movably arranged as the upper plane of installing rack (10), tooth bar (11) and tooth Wheel (7) engagement, tooth bar (11) is connected with spool (12) by connecting rod, and travel switch (9) is fixed on the right-hand member of installing rack (10)；
Spool (12) is cylinder, is provided with annular seal groove at cylindrical two ends, diametrically has second at cylinder Hot water inlet hole (16) and the second cold water inlet hole (13), the second hot water inlet hole (16) and the hole of the second cold water inlet hole (13) Away from L4The first hot water inlet hole (15) and pitch-row L of the first cold water inlet hole (14) with valve body (1)2Equal, the second hot water water inlet Hole (16) and pitch-row L of the second cold water inlet hole (13)4It is the aperture d of the second hot water inlet hole (16)23.1～3.2 times；The The aperture d of two hot water inlet holes (16)2, the aperture d of the second cold water inlet hole (13)2, the aperture d of the first hot water inlet hole (15)1 Aperture d with the first cold water inlet hole (14)1Equal；
The control panel (20) of temprature control unit controls software built with single-chip microcomputer (19), single-chip microcomputer (19) with temperature；Single Sheet machine (19) port A is connected with control panel (20), and single-chip microcomputer (19) port B is connected with travel switch (9), and single-chip microcomputer (19) is held Mouth C, D is corresponding with the positive and negative interface of micro servo motor (18) to be connected, and single-chip microcomputer (19) port E is with temperature sensor (3) even Connect.
Temperature automatic control mixing valve for water heater the most according to claim 1, it is characterised in that described blind end Have steam vent.
Temperature automatic control mixing valve for water heater the most according to claim 1, it is characterised in that described end cap (8) Have steam vent.
Temperature automatic control mixing valve for water heater the most according to claim 1, it is characterised in that described miniature watch The rated voltage taking motor (18) is 6V.
Temperature automatic control mixing valve for water heater the most according to claim 1, it is characterised in that described first heat Having effluent trough on the left of the delivery port of water inlet opening (15), the width b of effluent trough and degree of depth h of effluent trough are the first hot water and enter Water hole (15) aperture d1, length L of effluent trough1It is the first hot water inlet hole (15) aperture d11.5 times；First cold water inlet hole (14) effluent trough and the effluent trough of the first hot water inlet hole (15) are symmetrical arranged.
Temperature automatic control mixing valve for water heater the most according to claim 1, it is characterised in that described second heat Length L of distance between center line spool (12) left side of water inlet opening (16)3With the center line of the second cold water inlet hole (13) away from Length L from spool (12) right side5Equal, described length L5It is the second hot water inlet hole (16) aperture d23～3.5 times.
Temperature automatic control mixing valve for water heater the most according to claim 1, it is characterised in that described temperature control The main flow of software processed is:
S-1, initialization；
S-2, temperature range T is set1～T2, T2＞ T1；
S-3, the observed temperature T of temperature sensor (3)；
If S-4 is T1≤T≤T2, then S-5 is performed；If T is ＞ T2, then S-6 is performed；If T is ＜ T1, then S-7 is performed；
S-5, micro servo motor (18) enter resting state, then perform S-8 step；
S-6, micro servo motor (18) main story, spool (12) moves to right, and blends the mouth of a river (4) water temperature and reduces, returns S-3 step；
S-7, micro servo motor (18) anti-pass, spool (12) moves to left, and blends the mouth of a river (4) water temperature and raises, returns S-3 step；
S-8, end.
CN201410615114.7A 2014-11-05 2014-11-05 A kind of temperature automatic control mixing valve for water heater Expired - Fee Related CN104455684B (en)

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CN110594445A (en) * 2019-09-23 2019-12-20 安徽信息工程学院 Cold and hot water temperature control faucet
CN112963583A (en) * 2021-03-31 2021-06-15 江苏科技大学 Accurate control by temperature change tap based on real-time self feedback adjusts

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JPS58166177A (en) * 1982-03-26 1983-10-01 Ikeda Denki:Kk Changeover valve apparatus for use in solar-heat-utilizing water heater
JP3750185B2 (en) * 1996-04-04 2006-03-01 松下電器産業株式会社 Valve device
CN2536857Y (en) * 2001-11-19 2003-02-19 王冬雷 Digital thermostatic mixing valve
CN200949683Y (en) * 2006-08-29 2007-09-19 崔井河 Self-thermoregulation water saver

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