CN104455684A - Automatic temperature control mixing valve for water heater - Google Patents
Automatic temperature control mixing valve for water heater Download PDFInfo
- Publication number
- CN104455684A CN104455684A CN201410615114.7A CN201410615114A CN104455684A CN 104455684 A CN104455684 A CN 104455684A CN 201410615114 A CN201410615114 A CN 201410615114A CN 104455684 A CN104455684 A CN 104455684A
- Authority
- CN
- China
- Prior art keywords
- water inlet
- inlet hole
- hot water
- temperature
- spool
- 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.)
- Granted
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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
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- 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
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- 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
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- 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
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention relates to an automatic temperature control mixing valve for a water heater. According to the technical scheme, a square cavity (6) and a cylindrical cavity (17) are formed in a valve body (1), a spherical cavity (2) is formed in the upper portion of the cylindrical cavity (17), a first hot water inlet (15) and a first cold water inlet (14) are formed in the bottom of the cylindrical cavity (17), a temperature sensor (3) is arranged at a mixed water outlet (4) in the top of the spherical cavity (2), a valve element (12) is arranged in the cylindrical cavity (17) of the valve body (1), a driving part is arranged in the square cavity (6), an output shaft of a micro servo motor (18) is provided with a gear (7), and a rack (11) meshed with the gear (7) is connected with the valve element (12) through a connecting rod. A single-chip microcomputer (19) is arranged in a control panel (20) of the valve body (1). Temperature control software is programmed on the single-chip microcomputer (19). A port C and a port D of the single-chip microcomputer (19) are correspondingly connected with a positive interface and a negative interface of the micro servo motor (18). A port E of the single-chip microcomputer (19) is connected with the temperature sensor (3). The automatic temperature control mixing valve has the advantages of being convenient to operate, high in automation degree and accurate in temperature control.
Description
Technical field
The invention belongs to temp. automatic control valve technical field.Be specifically related to a kind of temperature automatic control mixing valve for water heater.
Technical background
At present, the agent technology of water heater is tending towards ripe, is generally used.Mixing valve is the very important temperature control apparatus of water heater, is directly connected to the comfort level that people use hot water.
" a kind of ceramic valve plate assembly and the water mixing valve of this assembly is housed " (ZL200610000129.8) patented technology, this technology comprises valve body, handle, ceramic valve core and is arranged on the hot and cold water mixing chamber below ceramic valve core.This ceramic valve core can be mediated to the flow of hot and cold water and water inlet ratio simultaneously, solves the problem that water flow is adjustable." a kind of handle of water tap of hot and cold water mixing " (ZL201310252909.1) patented technology, the body of this technology comprises operative section and attachment portion, and the two side of described attachment portion is provided with left hole and right hole; The hot water plug also comprising redness blocks up and blocks up with blue cold water plug, and stifled the blocking up with cold water plug of hot water plug removably connects with left hole and right hole respectively.The handle of the water tap that this handle provides a kind of hot and cold water to mix, it can distinguish cold water and hydrothermal area, easy to install and use.
Although above-mentioned various water mixing valve is at adjustment hot and cold water flow and be mixed with certain effect, but the temperature at the mouth of a river must be adjusted by the rotation of handle, in use, often occur the situation that temperature is sometimes hot and sometimes cold, and adjustment process trouble, temperature control precision is low.
Summary of the invention
The present invention is intended to overcome prior art shortcoming, object be to provide a kind of easy to operate, automaticity is high and temperature controls accurately for the temperature automatic control mixing valve of water heater.
For achieving the above object, the technical solution used in the present invention is: described mixing valve comprises valve body, spool, temprature control unit and drive part.The cylindrical cavity of valve body is equipped with spool, seal ring is equipped with respectively in the cylndrical surface at the close two ends place of spool, the mixing water outlet at the spherical hollow space top of valve body is equipped with temperature transducer, drive part is arranged in the square cavity of valve body, spool is connected by connecting rod with drive part, the opening end of end cap and valve body is bolted to connection, and temprature control unit is equipped with on the surface of valve body.
The structure of valve body is: one end of valve body is closed end, and the other end is opening end.Opening end ecto-entad has square cavity and cylindrical cavity successively, the top of cylindrical cavity is provided with spherical hollow space, the top of spherical hollow space is provided with and blends the mouth of a river, the bottom of cylindrical cavity is provided with the first hot water inlet hole and the first cold water inlet hole, first hot water inlet hole and the first cold water inlet hole are positioned at and blend both sides immediately below the mouth of a river, and cylindrical cavity communicates with spherical hollow space and square cavity respectively.The centre of sphere of spherical hollow space is positioned at 1/2 place of cylindrical cavity length, the length of centre of sphere distance cylindrical cavity axis of spherical hollow space and the radius r of cylindrical cavity
0equal, the centre of sphere and the cylindrical cavity axis of spherical hollow space are positioned at same vertical guide, the spherical radius r of spherical hollow space
1for cylindrical cavity radius r
01.1 ~ 1.3 times.
Described drive part is made up of scaffold, tooth bar, gear and micro servo motor.Micro servo motor is fixed in square cavity, the output shaft of micro servo motor is equipped with gear, scaffold is fixed on the bottom of described square cavity, tooth bar is arranged on the upper plane of scaffold actively, rack and pinion engages, tooth bar is connected with spool by connecting rod, and position limit switch is fixed on the right-hand member of scaffold.
Spool is cylindrical body, and cylindrical two ends place is provided with annular seal groove, diametrically has the second hot water inlet hole and the second cold water inlet hole, the pitch-row L of the second hot water inlet hole and the second cold water inlet hole in cylindrical body
4with the first hot water inlet hole of valve body and the pitch-row L of the first cold water inlet hole
2equal, the pitch-row L of the second hot water inlet hole and the second cold water inlet hole
4be the aperture d of the second hot water inlet hole
23.1 ~ 3.2 times.The aperture d of the second hot water inlet hole
2, the second cold water inlet hole aperture d
2, the first hot water inlet hole aperture d
1with the aperture d of the first cold water inlet hole
1equal.
The control panel of temprature control unit is built with single-chip microcomputer, and single-chip microcomputer is with temperature control software design.One-chip machine port A is connected with control panel, and one-chip machine port B is connected with position limit switch, and one-chip machine port C, D are corresponding with the positive and negative interface of micro servo motor to be connected, and one-chip machine port E is connected with temperature transducer.
Described closed end has exhaust port; Described end cap has exhaust port; The voltage rating of described micro servo motor is 6V.
Have effluent trough on the left of the water outlet of described first hot water inlet hole, the width b of effluent trough and the degree of depth h of effluent trough is the first hot water inlet hole aperture d
1, the length L of effluent trough
1be the first hot water inlet hole aperture d
11.5 times; The effluent trough of the first cold water inlet hole and the effluent trough of the first hot water inlet hole are symmetrical arranged.
The length L of the distance between center line spool left side of described second hot water inlet hole
3with the length L of the distance between center line spool right side of the second cold water inlet hole
5equal, described length L
5be the second hot water inlet hole aperture d
23 ~ 3.5 times.
The main flow of described temperature control software design is:
S-1, initialization;
S-2, set temperature scope T
1~ T
2, T
2> T
1;
The observed temperature T of S-3, temperature transducer;
If S-4 is T
1 t
t
2, then S-5 is performed; If T > is T
2, then S-6 is performed; If T < is T
1, then S-7 is performed;
S-5, micro servo motor enter state of dormancy;
S-6, micro servo motor main story, spool moves to right, and blends outlet water temperature and reduces, return S-3 step;
S-7, micro servo motor anti-pass, spool moves to left, and blends outlet water temperature and raises, return S-3 step;
S-8, end.
Working procedure of the present invention is as follows:
Before startup, spool is positioned at low order end, and tooth bar contacting travel switch, cuts off the electricity supply.During use, first input serviceability temperature scope on the control panel, then micro servo motor rotates forward, and by the movement of gear driven tooth bar, spool moves to left, and makes spool be in the position of the first cold water inlet hole and first hot water inlet hole's standard-sized sheet.
When the observed temperature of temperature transducer is lower than setting temperature scope, signal is passed to single-chip microcomputer, Single-chip Controlling micro servo motor, micro servo motor is rotated forward, and moved by gear driven tooth bar, spool moves to left, the water outlet of the first cold water inlet hole is reduced, the water outlet of the first hot water inlet hole is constant, thus mixing outlet temperature is raised, and reaches the temperature range of setting; Temperature transducer again by signal feed back to single-chip microcomputer, Single-chip Controlling motor enters state of dormancy, makes water-exit temperature reach stable.
When the temperature of temperature transducer actual measurement is higher than setting temperature scope, signal is passed to single-chip microcomputer, Single-chip Controlling micro servo motor, micro servo motor is reversed, and moved by gear driven tooth bar, spool moves to right, the water outlet of the first hot water inlet hole is reduced, the water outlet of the first cold water inlet hole is constant, thus mixing outlet temperature is reduced, and reaches the temperature range of setting; Temperature transducer again by signal feed back to single-chip microcomputer, Single-chip Controlling motor enters state of dormancy, makes water-exit temperature reach stable.
At the end of use, ceased and desisted order to single-chip microcomputer input by control panel, Single-chip Controlling micro servo motor reverses, moved by gear driven tooth bar, spool moves to right, and the first hot water inlet hole and the first cold water inlet hole are all closed, the position limit switch of tooth bar contact right-hand member, cuts off the electricity supply.
The present invention compared with prior art, has following remarkable advantage and beneficial effect:
1, the present invention is easy to operate, and control accurately, single-chip microcomputer and temperature transducer can keep water-exit temperature to tend towards stability, and without the need to manual operations, automaticity is high.
2, serviceability temperature sensor of the present invention can carry out temperature feedback accurately, the water-outlet quantity of micro servo motor to the first cold water inlet hole and the first hot water inlet hole is controlled more accurately, and then keeps the temperature blending the mouth of a river relatively stable.
3, the sealing effect of cylindrical spool and valve body that adopts of the present invention well, controls convenient.Be widely used in family, hotel or other public places, be also applicable to liquid or the gas of two kinds of different temperatures mixing.
Therefore, the present invention have easy to operate, automaticity is high and temperature controls 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 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 design of the present invention;
Fig. 8 is the schematic diagram of the present invention when quitting work.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, not to the restriction asking protection domain.
embodiment 1
A kind of temperature automatic control mixing valve for water heater.As illustrated in figures 1 and 8, described mixing valve comprises valve body 1, spool 12, temprature control unit and drive part.The cylindrical cavity 17 of valve body 1 is equipped with spool 12, the cylndrical surface at the close two ends place of spool 12 is equipped with seal ring 5 respectively, temperature transducer 3 is equipped with at the mouth of a river 4 place that blends at spherical hollow space 2 top of valve body 1, drive part is arranged in the square cavity 6 of valve body 1, spool 12 is connected by connecting rod with drive part, end cap 8 is bolted to connection with the opening end of valve body 1, and temprature control unit is equipped with on the surface of valve body 1.
The structure of valve body 1 is as shown in Figure 3 and Figure 4: one end of valve body 1 is closed end, and the other end is opening end.Opening end ecto-entad has square cavity 6 and cylindrical cavity 17 successively, the top of cylindrical cavity 17 is provided with spherical hollow space 2, the top of spherical hollow space 2 is provided with and blends 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 hole 14, first hot water inlet hole 15 and the first cold water inlet hole 14 are positioned at and blend both sides immediately below the mouth of a river 4, and cylindrical cavity 17 communicates 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 1/2 place of cylindrical cavity 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 17
0equal, the centre of sphere and cylindrical cavity 17 axis of spherical hollow space 2 are positioned at same vertical guide, the spherical radius r of spherical hollow space 2
1for cylindrical cavity 17 radius r
01.1 ~ 1.2 times.
As illustrated in figures 1 and 8, described drive part is made up of scaffold 10, tooth bar 11, gear 7 and micro servo motor 18.Micro servo motor 18 is fixed in square cavity 6, the output shaft of micro servo motor 18 is equipped with gear 7, scaffold 10 is fixed on the bottom of described square cavity 6, tooth bar 11 is arranged on the upper plane of scaffold 10 actively, tooth bar 11 engages with gear 7, tooth bar 11 is connected with spool 12 by connecting rod, and position limit switch 9 is fixed on the right-hand member of scaffold 10.
As shown in Figure 5, spool 12 is cylindrical body, and cylindrical two ends place is provided with annular seal groove, diametrically has the pitch-row L of the second hot water inlet hole 16 and the second cold water inlet hole 13, second hot water inlet hole 16 and the second cold water inlet hole 13 in cylindrical body
4with the first hot water inlet hole 15 of valve body 1 and the pitch-row L of the first cold water inlet hole 14
2equal, the pitch-row L of the second hot water inlet hole 16 and the second cold water inlet hole 13
4be the aperture d of the second hot water inlet hole 16
23.1 ~ 3.2 times.The aperture d of the second hot water inlet hole 16
2, the second cold water inlet hole 13 aperture d
2, the first hot water inlet hole 15 aperture d
1with the aperture d of the first cold water inlet hole 14
1equal.
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 design.Single-chip microcomputer 19 port A is connected with control panel 20, and single-chip microcomputer 19 port B is connected with position limit switch 9, and 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 transducer 3.
As illustrated in figures 1 and 8, described closed end has exhaust port; Described end cap 8 has exhaust port.The voltage rating of described micro servo motor 18 is 6V.
As shown in Figure 3 and Figure 4, have effluent trough on the left of the water outlet of described first hot water inlet hole 15, the width b of effluent trough and the degree of depth h of effluent trough is the first hot water inlet hole 15 aperture d
1, the length L of effluent trough
1be the first hot water inlet hole 15 aperture d
11.5 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 shown in Figure 5, the length L of distance between center line spool 12 left side of described second hot water inlet hole 16
3with the length L of distance between center line spool 12 right side of the second cold water inlet hole 13
5equal, described length L
5be the second hot water inlet hole 16 aperture d
23.0 ~ 3.3 times.
The main flow of described temperature control software design is as shown in Figure 7:
S-1, initialization;
S-2, set temperature scope T
1~ T
2, T
2> T
1;
The observed temperature T of S-3, temperature transducer 3;
If S-4 is T
1 t
t
2, then S-5 is performed; If T > is T
2, then S-6 is performed; If T < is T
1, then S-7 is performed;
S-5, micro servo motor 18 enter state of dormancy;
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, return 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, return S-3 step;
S-8, end.
embodiment 2
A kind of temperature automatic control mixing valve for water heater.Except following technical parameter, all the other same embodiments:
The spherical radius r of described spherical hollow space 2
1for cylindrical cavity 17 radius r
01.2 ~ 1.3 times.
The length L of distance between center line spool 12 left side of described second hot water inlet hole 16
3with the length L of distance between center line spool 12 right side of the second cold water inlet hole 13
5equal, described length L
5be the second hot water inlet hole 16 aperture d
23.2 ~ 3.5 times.
The working procedure of this embodiment is:
Before startup as shown in Figure 8, spool 12 is positioned at low order end, and tooth bar 11 contacting travel switch 9, cuts off the electricity supply.During use, first input serviceability temperature scope on control panel 20, then micro servo motor 18 rotates forward, and be with carry-over bar 11 to move by gear 7, spool 12 moves to left.As shown in Figure 1, spool 12 is in the position of the first cold water inlet hole 14 and the first hot water inlet hole 15 standard-sized sheet.
When the observed temperature of temperature transducer 3 is lower than setting temperature scope, signal is passed to single-chip microcomputer 19, single-chip microcomputer 19 controls micro servo motor 18, micro servo motor 18 is rotated forward, and be with carry-over bar 11 to move by gear 7, spool 12 moves to left, the water outlet of the first cold water inlet hole 14 is reduced, the water outlet of the first hot water inlet hole 15 is constant, thus makes to blend the mouth of a river 4 temperature rising, reaches the temperature range of setting; Temperature transducer 3 again by signal feed back to single-chip microcomputer 19, single-chip microcomputer 19 controls motor 18 and enters state of dormancy, makes water-exit temperature reach stable.
When the temperature that temperature transducer 3 is surveyed is higher than setting temperature scope, signal is passed to single-chip microcomputer 19, single-chip microcomputer 19 controls micro servo motor 18, micro servo motor 18 is reversed, and be with carry-over bar 11 to move by gear 7, spool 12 moves to right, the water outlet of the first hot water inlet hole 15 is reduced, the water outlet of the first cold water inlet hole 14 is constant, thus makes to blend the mouth of a river 4 temperature reduction, reaches the temperature range of setting; Temperature transducer 3 again by signal feed back to single-chip microcomputer 19, single-chip microcomputer 19 controls motor 18 and enters state of dormancy, makes water-exit temperature reach stable.
At the end of use, ceased and desisted order to single-chip microcomputer 19 input by control panel 20, single-chip microcomputer 19 controls micro servo motor 18 and reverses, and by the movement of gear 7 with carry-over bar 11, spool 12 moves to right, as shown in Figure 8.First hot water inlet hole 15 and the first cold water inlet hole 14 are all closed, and tooth bar 11 contacts the position limit switch 9 of right-hand member, cuts off the electricity supply.
This embodiment compared with prior art, has following remarkable advantage and beneficial effect:
1, this embodiment is easy to operate, and control accurately, single-chip microcomputer 19 and temperature transducer 3 can keep water-exit temperature to tend towards stability, and without the need to manual operations, automaticity is high.
2, this embodiment serviceability temperature sensor 3 can carry out temperature feedback accurately, the water-outlet quantity of micro servo motor 18 to the first cold water inlet hole 14 and the first hot water inlet hole 15 is controlled more accurately, and then keeps the temperature blending the mouth of a river 4 relatively stable.
3, the cylindrical spool 12 that adopts of this embodiment is good with the sealing effect of valve body 1, controls convenient.Be widely used in family, hotel or other public places, be also applicable to liquid or the gas of two kinds of different temperatures mixing.
Therefore, this embodiment have easy to operate, automaticity is high and temperature controls accurate feature.
Claims (7)
1., for a temperature automatic control mixing valve for water heater, it is characterized in that described mixing valve comprises valve body (1), spool (12), temprature control unit and drive part; The cylindrical cavity (17) of valve body (1) is equipped with spool (12), seal ring (5) is equipped with at the close two ends place of spool (12) respectively, temperature transducer (3) is equipped with at the mouth of a river (4) place that blends at spherical hollow space (2) top of valve body (1), drive part is arranged in the square cavity (6) of valve body (1), spool (12) is connected by connecting rod with drive part, end cap (8) is bolted to connection with the opening end of valve body (1), and temprature control unit is equipped with on the surface of valve body (1);
The structure of valve body (1) is: one end of valve body (1) is closed end, and the other end is opening end, opening end ecto-entad has square cavity (6) and cylindrical cavity (17) successively, the top of cylindrical cavity (17) is provided with spherical hollow space (2), the top of spherical hollow space (2) is provided with and blends 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 hole (14), first hot water inlet hole (15) and the first cold water inlet hole (14) are positioned at and blend both sides immediately below the mouth of a river (4), 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 1/2 place of cylindrical cavity (17) length, the centre of sphere distance length of cylindrical cavity (17) axis of spherical hollow space (2) and the radius r of cylindrical cavity (17)
0equal, the centre of sphere and cylindrical cavity (17) axis of spherical hollow space (2) are positioned at same vertical guide, the spherical radius r of spherical hollow space (2)
1for cylindrical cavity (17) radius r
01.1 ~ 1.3 times,
Described drive part is made up of scaffold (10), tooth bar (11), gear (7) and micro servo motor (18); Micro servo motor (18) is fixed in square cavity (6), the output shaft of micro servo motor (18) is equipped with gear (7), scaffold (10) is fixed on the bottom of described square cavity (6), tooth bar (11) is arranged on the upper plane of scaffold (10) actively, tooth bar (11) engages with gear (7), tooth bar (11) is connected with spool (12) by connecting rod, and position limit switch (9) is fixed on the right-hand member of scaffold (10);
Spool (12) is cylindrical body, cylindrical two ends place is provided with annular seal groove, the second hot water inlet hole (16) and the second cold water inlet hole (13) is diametrically had, the pitch-row L of the second hot water inlet hole (16) and the second cold water inlet hole (13) at cylindrical body
4with first hot water inlet hole (15) of valve body (1) and the pitch-row L of the first cold water inlet hole (14)
2equal, the pitch-row L of the second hot water inlet hole (16) and the second cold water inlet hole (13)
4be the aperture d of the second hot water inlet hole (16)
23.1 ~ 3.2 times; The aperture d of the second hot water inlet hole (16)
2, the second cold water inlet hole (13) aperture d
2, the first hot water inlet hole (15) aperture d
1with the aperture d of the first cold water inlet hole (14)
1equal;
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 design; Single-chip microcomputer (19) port A is connected with control panel (20), single-chip microcomputer (19) port B is connected with position limit 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 transducer (3).
2. the temperature automatic control mixing valve for water heater according to claim 1, is characterized in that described closed end has exhaust port.
3. the temperature automatic control mixing valve for water heater according to claim 1, is characterized in that described end cap (8) has exhaust port.
4. the temperature automatic control mixing valve for water heater according to claim 1, is characterized in that the voltage rating of described micro servo motor (18) is 6V.
5. the temperature automatic control mixing valve for water heater according to claim 1, have effluent trough on the left of the water outlet that it is characterized in that described first hot water inlet hole (15), the width b of effluent trough and the degree of depth h of effluent trough is the first hot water inlet hole (15) aperture d
1, the length L of effluent trough
1be the first hot water inlet hole (15) aperture d
11.5 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.
6. the temperature automatic control mixing valve for water heater according to claim 1, is characterized in that the length L of distance between center line spool (12) left side of described second hot water inlet hole (16)
3with the length L of distance between center line spool (12) right side of the second cold water inlet hole (13)
5equal, described length L
5be the second hot water inlet hole (16) aperture d
23 ~ 3.5 times.
7. the temperature automatic control mixing valve for water heater according to claim 1, is characterized in that the main flow of described temperature control software design is:
S-1, initialization;
S-2, set temperature scope T
1~ T
2, T
2> T
1;
The observed temperature T of S-3, temperature transducer (3);
If S-4 is T
1 t
t
2, then S-5 is performed; If T > is T
2, then S-6 is performed; If T < is T
1, then S-7 is performed;
S-5, micro servo motor (18) enter state of dormancy;
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, return 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, return S-3 step;
S-8, end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410615114.7A CN104455684B (en) | 2014-11-05 | 2014-11-05 | A kind of temperature automatic control mixing valve for water heater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410615114.7A CN104455684B (en) | 2014-11-05 | 2014-11-05 | A kind of temperature automatic control mixing valve for water heater |
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| CN104455684A true CN104455684A (en) | 2015-03-25 |
| CN104455684B CN104455684B (en) | 2016-08-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58166177A (en) * | 1982-03-26 | 1983-10-01 | Ikeda Denki:Kk | Changeover valve apparatus for use in solar-heat-utilizing water heater |
| JPH09273650A (en) * | 1996-04-04 | 1997-10-21 | Matsushita Electric Ind Co Ltd | Valve device and hot water and water mixing 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 |
-
2014
- 2014-11-05 CN CN201410615114.7A patent/CN104455684B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58166177A (en) * | 1982-03-26 | 1983-10-01 | Ikeda Denki:Kk | Changeover valve apparatus for use in solar-heat-utilizing water heater |
| JPH09273650A (en) * | 1996-04-04 | 1997-10-21 | Matsushita Electric Ind Co Ltd | Valve device and hot water and water mixing 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104455684B (en) | 2016-08-24 |
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