CN102147022A

CN102147022A - Intelligent thermostatic valve

Info

Publication number: CN102147022A
Application number: CN2010105855050A
Authority: CN
Inventors: 陈旭敏; 郭江
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-02
Filing date: 2010-12-02
Publication date: 2011-08-10

Abstract

The invention discloses an intelligent thermostatic valve which comprises a hot-water chamber, a cold-water chamber and a water outflow chamber which are connected by a rotary valve plug inner water channel; the rotary hot-water chamber and the cold-water chamber are provided with regulating valve motors; the regulating valve motors are connected with the output end of a single chip microcomputer; the output end of the single chip microcomputer is also connected with a switch valve motor; the switch valve motor is installed on the water outflow chamber; and the outlets of the hot-water chamber, the cold-water chamber and the water outflow chamber are respectively provided with a temperature sensor T1, a temperature sensor T2 and a temperature sensor T3 which are connected with the single chip microcomputer. Compared with the prior art, the intelligent thermostatic valve provided by the invention has the advantages that the water outflow temperature can be controlled, the working is reliable, and the like.

Description

Intelligent thermostatic valve

Background technique

The invention belongs to a kind of water mixing device.

Technical field

At present, existing hot and cold water control valve is directly to be connected on the hot and cold water cavity by water chamber, this valve when certain fault occurring, as cold water interrupt, hot water interrupts or when mixing situations such as water control valve is out of control, can cause water-exit temperature to increase suddenly or reduce.

Summary of the invention

Purpose of the present invention just provides that a kind of mixed water is effective, the intelligent thermostatic valve of reliable operation.

For achieving the above object, technological scheme provided by the present invention is: a kind of intelligent thermostatic valve, it comprises hot water cavity, cold water cavity and water chamber, hot water cavity, cold water cavity is connected with the spool inner lead of water chamber by a rotation, on hot water cavity that rotates and the cold water cavity modulating valve motor is housed, the modulating valve motor is connected with the output terminal of single-chip microcomputer, the output terminal of single-chip microcomputer also is connected with the switch valve motor, described switch valve motor is contained on the water chamber, described hot water cavity, the outlet port of cold water cavity and water chamber is provided with temperature transducer T1 respectively, T2, T3, temperature transducer T1, T2, T3 is connected with the input end of single-chip microcomputer.

Compared with prior art, the present invention has water-exit temperature and can control, and advantage such as reliable operation.

Description of drawings

Accompanying drawing is this intelligent thermostatic valve structural representation block diagram.

Embodiment

Intelligent thermostatic valve shown in the drawings, after the user starts, single-chip microcomputer 5 at first detects the temperature of hot water cavity 2 water intake T1, when if this temperature is lower than the water-exit temperature of prior setting, system opens escape cock 8, cold water in the hot-water line is discharged, when the temperature of ordering as hot water cavity 2 outlet T1 reached and sets out coolant-temperature gage, escape cock 8 cut out, system drive switch valve motor 6, to mix water valve 3 opens, simultaneity factor is according to hot water cavity 2 import T1, the temperature that cold water cavity import T2 and water outlet temperature T 3 are measured, through and the comparison of the value of setting, the output control signal corresponding drives the modulating valve motor, change the aperture of hot water cavity 2 and cold water cavity 1, reach the purpose of constant-temperature effluent.

Intelligent thermostatic valve is regulated motor, switch valve motor and switch valve mechanism etc. and is formed by valve body, mixed water valve, water-exit temperature, control circuit board is located at the back side of valve body, be provided with three water channels in the valve body, connect hot water cavity 2, cold water cavity 1 and water chamber 3 and the corresponding outlet that mixes water valve respectively, and be provided with three temperature transducer T1, T2, T3 at hot water inlet, cooling water inlet and water outlet place, in order to measure the temperature variation at three places, provide the control foundation of control circuit.

Be when hot and cold water mixes, to mix the residing position of water valve, hot water links to each other with water chamber by the spool inner lead with cold water, its water-exit temperature depends on the aperture of hot water and cold water cavity 2,1, this aperture is controlled the rotation of D1 (water-exit temperature adjusting motor) by control circuit, the driven gear dish, the angle of mixing water valve is changed, thereby change the ratio of cold water and hot water.As can be seen, when gear disk forwarded the leftmost side to, hot water cavity was blocked fully, had only cold water cavity 1 to link to each other with water chamber 3, and this moment, water-exit temperature was identical with the cold water entering water temp.When gear disk forwarded the rightmost side to, cold water cavity 3 was blocked, and had only hot water cavity 2 to link to each other with water chamber 3, and water-exit temperature is identical with the hot water entering water temp.

What represent is when the water outlet closing state, and when control circuit sent the pass valve signal, D2 (switch valve motor) got electric rotation.Drive the switch valve cam rotation, switch valve mechanism is driven mix the water valve valve rod, valve rod is stirred spool, makes spool produce displacement, blocks hot water and cold water valve pocket, reaches the purpose of closing valve.

Valve body is respectively equipped with five ports, wherein hot water inlet connects the hot water source, as electric water heater, solar water heater, gas water-heater etc., it is two that cooling water inlet is sent out, one of them connects water supply pipe, another designs for electric water heater, can connect the cooling water inlet of electric water heater, and the water supply of electric water heater is provided.Discharging/hot water outlet has two purposes, when the adapted electric water heater, this mouth is a hot water outlet, can provide other with the used hot water of hot water facility, when adapted solar energy and gas water-heater, because its pipeline is long, have a large amount of cold water in the pipe, this moment, this mouth was a floss hole, and an escape cock 8 is installed herein, be connected to an electromagnetic system 4 on the escape cock 8, the input end of electromagnetic system 4 connects the output terminal of single-chip microcomputer 5.This valve is controlled by control circuit, control circuit is according to the measured temperature of T1 (hot water temperature's sensor), the water-exit temperature that is provided with the user compares, when T1 when temperature is set, this solenoid valve gets electric opening, cold water in the pipeline is discharged from, and after T1 equaled temperature is set, this solenoid valve dead electricity was closed.Water outlet is the port that connects water appliance, as the bathing gondola water faucet etc.

Control circuit is to be the intelligence control circuit of core with the single-chip microcomputer, and it is made up of single-chip microcomputer, button input circlult, temperature transducer input circlult, LCD display driver circuit, D1, D2 drive circuit, warning circuit etc.Basic principle is: a water-exit temperature Ts is set; detect T1 and Ts compares by single-chip microcomputer, as T1 during less than Ts; single-chip microcomputer powers on escape cock (plug-in solenoid valve); defective water is discharged, and when T1 equaled Ts, electricity was closed under the escape cock; while Micro Controller Unit (MCU) driving D2; to mix water valve and open, D2 is in the position of Fig. 3 during owing to each the shutdown, so the water-exit temperature of this moment also should be the temperature of T1; rising along with the T1 temperature; Micro Controller Unit (MCU) driving D1 makes gear disk to anticlockwise, opens cold water cavity gradually; single-chip microcomputer detects the variation of T3 simultaneously; according to T3 and Ts difference, determine sense of rotation and the amplitude of D1, make T3=Ts.T2 is the cold water temperature sensor, if when cold water temperature changes, single-chip microcomputer is in time adjusted the angle of swing of D1 according to its variable quantity, to guarantee the stable of water-exit temperature.

In circuit, also be provided with video terminal.Being used for the state and the information of display circuit, helping the user that whole device is understood, is that operation comes into plain view.

Claims

1. intelligent thermostatic valve, it comprises hot water cavity (2), cold water cavity (1) and water chamber (3), hot water cavity (2), cold water cavity (1) is connected with the spool inner lead of water chamber (3) by a rotation, it is characterized in that on described hot water cavity (2) and the cold water cavity (1) modulating valve motor (7) being housed, modulating valve motor (7) is connected with the output terminal of single-chip microcomputer (5), the output terminal of single-chip microcomputer (5) also is connected with switch valve motor (6), described switch valve motor (6) is contained on the water chamber (3), described hot water cavity (2), the outlet port of cold water cavity (1) and water chamber (3) is provided with temperature transducer (T1 respectively, T2, T3), temperature transducer (T1, T2, T3) input end with single-chip microcomputer (5) is connected.

2. intelligent thermostatic valve according to claim 1, the outlet port that it is characterized in that described hot water cavity (2), cold water cavity (1) also is connected to an escape cock (8), be connected to an electromagnetic system (4) on the escape cock (8), the input end of electromagnetic system (4) connects the output terminal of single-chip microcomputer (5).