CN201885308U - Water-saving supply device of double-controlled domestic hot water - Google Patents

Abstract

The utility model discloses a water-saving supply device of double-controlled domestic hot water, which comprises an existing double-controlled domestic hot water supply system and a control circuit, and is characterized in that for the double-controlled domestic hot water supply system, a circulating water pump and a solenoid valve are connected between a hot water pipe and a tap water pipe at a water port at the far end of a gas water heater in sequence, the inlet of the water pump is connected with the hot water pipe, the outlet of the water pump is connected with the inlet end of the solenoid valve, and the outlet end of the solenoid valve is connected with the tap water pipe; and the control circuit comprises a contactor, a time relay, a start switch button and a stop swtich button; the contactor, the time relay, the solenoid valve and the water pump are connected in parallel; and the control circuit is connected with a 220V/50Hz power supply of each family. The water-saving supply device has a simple structure, is easy to realize and convenient and reliable to use, and does not break the original domestic water supply system; and hot water is drained in a short time after a hot water faucet at the far end is opened, thus greatly saving tap water wasted before use in the original system, and effectively saving water resources.

Description

The two control domestic hot-waters feedway of economizing on water

Technical field

The utility model relates to a kind of home-use two control domestic hot-waters feedway of economizing on water.

Background technology

Present most of family adopts the direct cooling water of city tap-water, and an other running water enters gas heater heating back heat supply water, promptly so-called two control life hot and cold water water systems.The advantage of this system is that pipe-line system is simple, and installation cost is low, is generally used by China most of dwelling house family.But when the shortcoming of this two control water system maximums is that each water nozzle is brought into use hot water, just there is hot water to flow out after all needing the running water in from gas heater to pipeline the water nozzle all put, continuous increase along with the home dwelling room area, the distance at gas heater distance water nozzle place farthest is also more and more far away, the running water of waste is also more and more, is 30 meters as gas heater apart from the length of the pipe laying at water nozzle place, the hot-water line water path tube is DN20, so each use hot water need be wasted about 10Kg running water, one day with three hot water, each family will on average waste the 30Kg running water every day, to waste the water of 10950Kg in 1 year, for the medium-sized city of one 1,000,000 family family, the waste of water resource is very surprising.Constantly in short supply along with the water globe resource provisioning presses for household water saving device.

Summary of the invention

The utility model discloses a kind of two control domestic hot-waters feedway of economizing on water, its purpose is to solve existing most of dwelling house family and generally uses two control hot and cold water water systems to need the problem that running water in the pipeline is bled off before bringing into use hot water, on the basis of not destroying original two control water systems, employing connects a water circulating pump and a magnetic valve at the distance gas heater between the water nozzle place of far-end is with hot-water line and running water pipe, and designed correspondent control circuits, having saved greatly needs the running water wasted before the former use hot water.

The two control domestic hot-waters feedway of economizing on water comprises existing two control domestic hot-water water system and control circuits, it is characterized in that:

A) described two control domestic hot-water water systems: between the water nozzle place of far-end is with hot-water line and running water pipe, connect a water circulating pump and a magnetic valve successively at the distance gas heater, the water pump import is connected with hot-water line, exit of pump is connected with the magnetic valve entrance point, and the electromagnetic valve outlet end is connected with running water pipe;

B) described control circuit: comprise contactor, the time relay, starting switch button and shutdown switch button, contactor, the time relay, magnetic valve and water pump are connected in parallel; This circuit is connected with the 220V/50Hz power supply of each household family.

In the control circuit of design, the time relay time can manually be set within the specific limits, and the length of setting-up time and gas heater are to the water nozzle distance dependent of distal-most end, and the distance time far away more, that set is just long more.After family installs the utility model device, being set at each faucet outlet and all can guaranteeing to open the shortest running time that hot water just can be arranged of time.

Two control domestic hot-waters of the utility model design simple in structure being easy to of feedway of economizing on water realized, easy to use and reliable, do not destroy original domestic water supply system, promptly flow out hot water in short time after opening the far-end hot water tap, saved greatly and needed the running water wasted before the former use hot water, effectively save water resource, can be widely used in having used at present the family of two control life hot and cold water water systems.

Description of drawings

Fig. 1 installs principle schematic for system of the present invention;

The control circuit schematic diagram that Fig. 2 designs for the present invention.

1, running water pipe, 2, hot-water line, 3, water circulating pump, 4, magnetic valve, 5, stop valve.

KM among Fig. 2: contactor, TR: the time relay, SB1: starting switch button, SB2: shutdown switch button, SV: magnetic valve, PM: water circulating pump.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is described in detail; but present embodiment is not limited to the utility model; the protection domain of the utility model claims is all listed in every employing principle of similitude structure of the present utility model and similar variation thereof in.

Principle schematic is installed as shown in Figure 1 by the two control domestic hot-waters feedway system that economizes on water, and mainly comprises a water circulating pump 3, a water solenoid valve 4 and a corresponding connecting line.In original home dwelling two control hot and cold water water systems, after the water nozzle place hot water and running water outlet shutoff valve 5 of distance gas heater at far-end, a water circulating pump 3 and a magnetic valve 4 will be connected between hot-water line 2 and the running water pipe 1 successively, water circulating pump 3 imports are connected with hot-water line 2, water circulating pump 3 outlets are connected with magnetic valve 4 entrance points, magnetic valve 4 ports of export are connected with running water pipe 1, and the caliber of connecting line can be identical with the caliber of former supply channel.

Two control domestic hot-waters economize on water feedway the control circuit schematic diagram as shown in Figure 2, mainly contain contactor KM, time relay TR, starting switch button SB1 and shutdown switch button SB2 and form, contactor KM, time relay TR, magnetic valve SV and water circulating pump PM are connected in parallel.This circuit is connected with the 220V/50Hz power supply of family.

Before bringing into use hot water, will press starting switch button SB1, contactor KM energising, the normally opened contact closure of its three parallel connections, a normally opened contact closure by contactor KM makes starting switch button SB1 decontrol the back self-locking, make time relay TR energising work after the normally opened contact closure, make magnetic valve SV and water pump P M energising operation after the normally opened contact closure, hot water begins circulation.After the time that runs to setting, when hot water has all arrived near each delivery port, the normally-closed contact of time relay TR disconnects, contactor KM outage, the normally opened contact reduction of its three parallel connections disconnects, starting switch button SB1 self-locking disconnects, time relay TR outage quits work, magnetic valve 4 cuts out with water circulating pump 3 out of service, if before the normally-closed contact of time relay TR disconnects, want to close water circulating pump 3, press shutdown switch button SB2, contactor KM also cuts off the power supply, and the normally opened contact reduction of its three parallel connections disconnects, and starting switch button SB1 self-locking disconnects, time relay TR outage quits work, magnetic valve 4 cuts out with water circulating pump 3 out of service.

Claims (1)

1. the two control domestic hot-waters feedway of economizing on water comprises existing two control domestic hot-water water system and control circuits, it is characterized in that:

A) described two control domestic hot-water water systems: between the water nozzle place of far-end is with hot-water line and running water pipe, connect a water circulating pump and a magnetic valve successively at the distance gas heater, the water pump import is connected with hot-water line, exit of pump is connected with the magnetic valve entrance point, and the electromagnetic valve outlet end is connected with running water pipe;

B) described control circuit: comprise contactor, the time relay, starting switch button and shutdown switch button, contactor, the time relay, magnetic valve and water pump are connected in parallel; This circuit is connected with the 220V/50Hz power supply of each household family.