CN2030299U

CN2030299U - Automatic control electric heating device for cold water

Info

Publication number: CN2030299U
Application number: CN 87209273
Authority: CN
Inventors: 陈石
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-06-17
Filing date: 1987-06-17
Publication date: 1989-01-04

Abstract

The utility model provides an automatic control electric heating device for cold water which has the advantages of safety, energy conservation and convenient drinking. The automatic control electric heating device for cold water is suitable for being used in a collective place. The automatic control electric heating device for cold water is composed of an electric heater, a boiler, a flow regulating valve, a heat exchanger, a low voltage control circuit and a heat insulation container. Under the condition that the water pressure of tap water is normal, a 220V alternating current power supply is switched on, and the automatic control electric heating device for cold water can automatically and continuously provide cold water for people. The temperature of the cold water is provided with a certain regulating range according to different seasons. During the water failure, the power is automatically cut off. The water surfaces of the water is controlled by a time relay. The inlet water flow and the outlet water flow are automatically regulated by the flow regulating valve controlled by steam pressure. When the steam is superpneumatic, a safety valve is automatically opened. If the temperature of the water is not raised by 100DEG C, the water can not flow out. During the dynamic balance of exchange of heat, the electricity with one kilowatt-hour can make 20DEG C tap water which weighs 25-30 kg be transformed into 30DEG C cold water.

Description

Automatic control electric heating device for cold water

This project relates to a kind of improved drinking water boiler, can continuously, directly provide cold boiling water to supply the personnel in collective places such as school, workshop, station, theater to drink.All have the collective unit of running water and 220 volts of alternating currents, all can use.

Existing drinking water boiler is heated to 100 ℃ of boilings with running water (20 ℃), and a boiled kg of water needs 80 kilocalories of heat, and needs special messenger's operation.When people drink, cool off a period of time, both not convenient, waste heat energy again.Place to school student, workshop workman and mobile personnel concentrate is subjected to the restriction of time or work, generally need not drink hot tea, and what need most is the cold boiling water that directly can drink.

The task of this project will provide a kind of automatic control electrical heating cold boiled water apparatus exactly, the cold boiling water that it can be continuously, automatically drink for people's supply, and can save a large amount of electric energy.

The task of this project is achieved in that

Make cool-bag with double-level-metal plate holder insulation material, double-deck spiral pipe of thermal is installed in cool-bag, make heat exchanger, in the spiral coil of heat exchanger, have a support that an electrically heated boiler is supported on the middle and upper part of heat exchanger, the pipe with spiral pipe in the boiler is connected with the upper port of the inside and outside helix tube of heat exchanger respectively by choke valve, in the interior pipe bottom of heat exchanger, water out adapter is housed, and the outer tube bottom communicates with running water pipe.In the middle of the valve body of choke valve a plunger is arranged, have two conical surface breach corresponding on the plunger with four holes of valve body both sides.One end of plunger is connected with upper boiler by steam pipe, and the other end is equipped with compression spring, and the other end of spring is against on the pressure adjustment screw that is installed on the valve body.

Below in conjunction with accompanying drawing this is described in further detail.

Fig. 1 is the fundamental diagram of this project.

Fig. 2 is the circuit theory diagrams of this project.

Fig. 3 is the cutaway view of choke valve.

Fig. 4 is a water out adapter.

Fig. 5 is a return connector.

With reference to Fig. 1, (1) is cool-bag, and the double-level-metal plate is made, and accompanies insulation material.Heat exchanger (17) places within (1).The upward middle part of heat exchanger is boiler (10) and airtight electric heater (11), and places on the support (12).Pipe with spiral pipe (9) in the boiler links to each other with heat exchanger (17) by choke valve (5).The steam pipe of upper boiler links to each other with an end of choke valve (5).Safety valve that communicates with steam pipe (7) and air gauge (8) stretch out on the lid of cool-bag, so that steam discharge and observation pressure condition.The structure of choke valve (5), with reference to shown in Figure 3: there is a plunger centre, and two conical surface breach are arranged on the plunger, plays throttling action.One end of plunger is connected with steam, and the other end has compression spring, and its pressure size is regulated by adjustment screw.There are four holes the both sides of valve body, and are logical with turnover water route structure.

The upper end of heat exchanger (17) is linked to each other with choke valve (5) by return connector (6).Return connector (6) will be told separately through the running water that gives heat, pass through choke valve, enter boiler helix tube (9), through being heated to 100 ℃, come out again again, get back to return connector (6) by choke valve, communicate with the interior pipe of heat exchanger (17), through the heat exchange cooling of (17), from the water out adapter (16) of heat exchanger (17) lower end, flow out at last, store in the bottom of cool-bag (1).Simultaneously, the outer tunnel of water out adapter (16) communicates with running water.On the water out adapter (16), 15 meters of stretched length connect a middle water out adapter (15).Water out adapter and middle water out adapter, structure is similar.The structure of water out adapter (16), as shown in Figure 4: internal channel blocks, and outwards draws, and water outlet place has internal thread, and outer tunnel is unimpeded.The difference of middle water out adapter (15) be in: though internal channel outwards draw, but still unimpeded.The effect of middle water out adapter (15) is because of seasonal variations, and the intensity of the cold boiling water that raises.At this moment, as long as turn on the plug of (15), and block the outlet of (16), heat exchange length and time shorten, and cold boiling water can heat up.

With reference to Fig. 2, the circuit control section of this project is made up of heating main circuit and control circuit two parts.Two relays are arranged in the control circuit: one is the pressure switch of single phase ac, is handled automatically by tap water pressure.Another is the time relay of direct current, and the action in 1 hour of delaying time is handled automatically by the liquid level of cold boiling water.Whole system by the cooperation of tap water pressure, steam pressure, choke valve, control relay circuit, realizes control automatically.

Boiler among Fig. 1 (10), envelope has a certain amount of water, uses for helix tube heat conduction.When water seethes with excitement, produce steam, pressure is 0.3 kilograms per centimeter ², corresponding vapor (steam) temperature is 106 ℃.The bottom of helix tube places 100 ℃ water, and top places 106 ℃ vapour.5 meters of helix tube lengths of run, inner 0.5 kilogram in the water that holds.Inject 2.5 kg of water in the pot.After using a period of time, can use the loss of special-purpose injector supplementing water.Should inject through the boiling water that boils, to reduce or to avoid gyp.

This cold boiled water apparatus, it is more that heat power consumption the first time. After hot and cold water flowed and reaches dynamic equilibrium, every consumption 1 degree electricity can change to the running water of 20 ℃ of 25-30 kilograms 30 ℃ cold boiling water into. Stream time is more long, and break time is more short, and it is more few to be interrupted number of times, and then the utilization rate of electric heating is more high, and the cold boiling water power consumption of generation as much is more few. Just because of this, its optimum collective place provides cold boiling water to use to people continuously.

Claims

1, electrical heating cold boiled water apparatus of forming by cool-bag [1], electric heater [11], boiler [10], heat exchanger [17], choke valve [5], it is characterized in that cool-bag [1] makes with double-level-metal plate holder insulation material, the heat exchanger [17] that interior dress double-deck spiral pipe of thermal is made, electric heater [11] and boiler [10] are equipped with in the middle and upper part of spiral coil, pipe with spiral pipe [9] in the boiler links to each other with the upper port of the inside and outside helix tube of heat exchanger respectively by choke valve [5], interior pipe bottom at heat exchanger, water out adapter is housed, and the outer tube bottom communicates with running water pipe.

2, the cold boiled water apparatus of describing according to claim 1, there is a plunger valve body centre that it is characterized in that choke valve (5), there are two conical surface breach corresponding on the plunger with four holes of valve body both sides, one end of plunger is connected by the top of steam pipe with boiler (10), the other end is equipped with compression spring, and the other end of spring is against on the pressure adjustment screw that is installed on the valve body.