CN2217172Y

CN2217172Y - Mini steam boiler with safety monitering device

Info

Publication number: CN2217172Y
Application number: CN 94238938
Authority: CN
Inventors: 顾炯明
Original assignee: Shao Peihua; Shen Haifei
Current assignee: Shao Peihua; Shen Haifei
Priority date: 1994-06-22
Filing date: 1994-06-22
Publication date: 1996-01-10
Anticipated expiration: 2004-06-22

Abstract

The utility model provides an improved miniature steam boiler with a safety monitoring device. The monitoring device is composed of a temperature controller and an indication lamp device. The temperature controller is connected in series with an electric heating pipe. The temperature controller and the high-end part of the electric heating pipe can carry out the proximity installation; when the water level is reduced below the high-part, the utility model can cut off the path of the power supply; then, the electricity supplying way of the electric heating pipe can be converted into the low current electricity supplying way; the indication lamp lights up; thereby, the utility model realize the automatic monitor, the water level reducing operation, and alarm displaying operation for the working state of the electric heating pipe. The utility model is especially suitable for connecting with the steam iron to carry out the ironing clothes. The utility model has simple structure, safe and reliability, practicability, and low producing cost.

Description

The small steam producer of band safety monitoring device

The utility model relates to the boiling device, the specifically a kind of and supporting small steam producer of steam iron.

Use always, with the supporting small steam producer of vapour iron, be thermal source with the electrothermal tube, make water boiling vaporization, be used for clothes ironing then.Dry combustion method take place and damage in the water level back that descends for fear of electrothermal tube, available technology adopting connected vessels type peripheral hardware glass tube fluid level indicator or with the fluid level controller of relay.The former passes into silence easily, and the latter then can be insulated by incrustation scale and influences functional reliability because of electrode.

The purpose of this utility model is to provide a kind of small steam producer with safety monitoring device, and it can prevent that electrothermal tube from damaging because of dry combustion method; Has low water level display alarm effect in addition.

The small steam producer of this band safety monitoring device, comprise water tank, case lid, filler, steam (vapor) outlet, safety valve, electrothermal tube, the heat transfer sleeve pipe that it is characterized in that electrothermal tube directly is connected on the fixed head, high-end and the opposite side fixed head point of attachment of heat transfer sleeve pipe is provided with the temperature controller of a control power path, also is parallel with a display circuit device at temperature controller circuit two ends.

Said display circuit device is in series by current-limiting resistance R and neon bulb indicator lamp C.

High temperature conduction when the utility model advantage is that it has utilized electrothermal tube to work more than the water surface makes temperature controller work, cut off its path, conducting demonstration simultaneously or warning circuit show automatically, report to the police thereby reach the stove low water level, prevent the purpose that electrothermal tube damages because of dry combustion method.It is simple in structure, safe, reliable, practical, and production cost is very low.

Be described further below in conjunction with embodiment and accompanying drawing thereof:

Fig. 1 is the structural representation of embodiment.

Fig. 2 is the circuit theory diagrams of embodiment.

Referring to Fig. 1, dress water in the water tank 1, close with case lid 2 envelopes, case lid is provided with steam (vapor) outlet 3, safety valve 5, water inlet 6, steam (vapor) outlet 3 gas receiving tubes 4 lead to vapour iron, or other uses the occasion (as moise-heat sterilization) of steam.Water inlet 6 also can be located on the side of water tank, and water inlet 6 is guided the bottom of water tank into by water pipe 7.In the heat transfer sleeve pipe of electrothermal tube 8 is heating wire, and electrothermal tube 8 curves the form toward top perk, is fixedly connected (welding) on fixed head 9, and its high-end position directly connects with fixed head 9, fits the temperature controller 10 of a bimetal structure is installed in the outside at this position.Fixed head 9 usefulness metal materials are made, and sealing is installed in outside the downside of water tank.

Fig. 2 has provided circuit theory.Power supply connects from utility network, and temperature controller W connects with electrothermal tube RL, is parallel with a low water level display lamp device of being made up of current-limiting resistance R and neon bulb L at the two ends of temperature controller circuit.

When connecting with the mains, the water yield in the water tank expired electrothermal tube 8 and upwarped the position, and temperature controller W connects, and electrothermal tube 8 heatings make water boiling vaporization, produce steam and draw from steam (vapor) outlet 3.Safety valve 5 is opened and is made decompression in the water tank during overvoltage.The voltage difference of neon bulb L two ends is zero, not conducting of circuit.If water level reduces in the water tank, be lower than electrothermal tube 8 warping part timesharing, this portion temperature obviously raises, in case exceed threshold value, pressing close to be installed in the temperature controller at this position starts working, its path is disconnected, and electrothermal tube 8 is just contacted with indicator light circuit, changes because pressure drop distributes, electric current reduces on the heating wire in the electrothermal tube 8, caloric value subtracts suddenly, has avoided the major accident of dry combustion method, and neon bulb L lights simultaneously, the quantity of water in water tank deficiency of announcement, Deng the additional water temperature controller W recovery afterwards conducting state that goes up, the neon bulb indicator lamp extinguishes, the main living steam of continuation in the water tank.

In clothes ironing work, use this device need not take care the problem that causes the electrothermal tube dry combustion method to damage because of water shortage, and can realize the monitoring of duty automatically.If deenergization, then electrothermal tube 8 no longer generates heat, and no longer produces steam in the water tank 1.

Claims

1, a kind of small steam producer with safety monitoring device, comprise water tank (1), case lid (2), filler (6), steam (vapor) outlet (3), safety valve (5), electrothermal tube (8), it is characterized in that the heat transfer sleeve pipe of electrothermal tube (8) directly is connected on the fixed head (9), the opposite side of high-end and fixed head (9) point of attachment of heat transfer sleeve pipe is provided with the temperature controller (W) of a control power path, display circuit device in parallel at temperature controller circuit two ends.

2, small steam producer as claimed in claim 1 is characterized in that said display circuit device is in series by current-limiting resistance (R) and neon bulb (L).