CN2470731Y

CN2470731Y - Promptly-heated type electrothermal-medium heating device

Info

Publication number: CN2470731Y
Application number: CN 01214899
Authority: CN
Inventors: 张镇强
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-01-09
Filing date: 2001-01-09
Publication date: 2002-01-09
Anticipated expiration: 2011-01-09

Abstract

The utility model discloses an instantaneous electric hot medium heating device, which is composed of a metal tube, a heat conduction insulating layer outside the metal tube, an electro thermal material layer outside the heat conduction insulating layer, as well as an insulation fire protection layer complex outside the electro thermal material layer. The medium flows in the metal tube. Through the efficient heat exchange implemented on the surface of the metal tube wall, the instantaneous electric heating of the medium and the electric insulation are achieved. With simple technique and low cost of the utility model, the large scope of heating power can be realised. The precise temperature monitoring and control and the equipment protection are easy to implement, thereby the application range is extensive.

Description

A kind of instant electric medium heater

The utility model relates to the electric heating field, especially relates to a kind of instant electric medium heater of fluid media (medium) heating.

Traditional fluid (as water, air, chemical mediator etc.) heating means, general employing is exposed heating wire or is heated with the electrothermal tube of materials such as quartz with metal tube and heating wire isolation, its major defect: the heat that exothermic material produced can't fully exchange with medium, thereby there is very high temperature difference in the medium of heater and required heating when causing work, and heater heat capacity greatly discharges, cause that thus component life is short, easy tracking, container is big, the insulation difficulty, utilization rate of electrical is low, the cost height.The storage-type hot water method because thermal inertia is big, is not that the hot water supply is not gone up if be used for the family expenses shower, is exactly sometimes hot and sometimes cold, even also wastes one case hot water after a bath, makes the people in a dilemma.Some Instant heating type or fast water heaters are arranged on the market, and its operation principle is the same with storage-type electric water heater, only water tank is dwindled greatly, still has drawbacks such as the cost height of container heating, easy aging, easy dry combustion method and electric leakage.

The purpose of this utility model is to have proposed a kind of instant electric medium heater that solves the heat exchange problem and the electric insulation problem of heater and medium.

The utility model comprises:

A, the passage of making by heat conduction and insulating materials that allows media flow;

B, electrothermal layer is loaded onto in the above-mentioned passage outside;

C, above-mentioned electrothermal layer external application heat-insulation layer parcel.

Wherein passage is made of the external deposited insulating heat-conductive layer of heat conduction tubulose, or the tubular body of selecting for use insulating heat-conduction material to make constitutes.

The utility model specific embodiments is: at heat conductive metal pipe external application one deck heat-conducting insulation material, at heat-conducting insulation material external application thermo electric material.Thermo electric material is in the metal tube external heat, and medium flows in pipe.Carry out sufficient heat exchange by large-area inside pipe wall surface and medium.Because the very big raising of heat exchanger effectiveness, the temperature difference of the temperature of medium and exothermic material is minimum when therefore working.Heat is in time taken away by working media, thereby finishes the heating of instant electric medium.

The utility model compared with prior art has the following advantages:

(1) greatly improve the heat exchange of heat medium and heater, thereby make the temperature difference of heater and medium minimum, operating temperature is extremely low, and externally radiations heat energy is little, and insulation is easy, the efficient height.

(2) realize Instant heating type medium heating, do not need media Containers, production and maintenance cost are low, because there is not the electric leakage situation in electricity separation.

(3) be used for the electric heater aspect, overcome many drawbacks of storage-type electric water heater, as: casing is big, cost is high, easy-to-rust, the fouling of electrothermal tube tracking, use uncomfortable etc.

(4) simple in structure, with low cost, utilize present technique can make any power, the dielectric heater of arbitrary shape.Be widely used in service industries such as family, food, chemical industry, medicine, medical treatment, scientific research, food and drink, tourism tourism, hotel, aquaculture, cosmetology, Saunas health care.

(5) compare with gas heater, there is not the wall borehole exhaust of forced-ventilated device in simple installation, is a kind of pollution-free, explosion-proof, uses the environmental protection heating means of high mass-energy.

(6) because media security ground is sealed in the metal tube, and it is very easy that the accurate temperature monitoring of medium and the anti-dry detection of equipment are protected, stop the possibility of leaking electricity simultaneously, the safety of equipment is secure.

Fig. 1 is the utility model structural representation.

Fig. 2 is the structure chart of the utility model embodiment.

As shown in Figure 1, the utility model comprises: a, the path 10 of being made by heat conduction and insulating materials that allows media flow; B, electrothermal layer 3 is loaded onto in the above-mentioned path 10 outside; C, wrap up with heat-insulation layer 4 in above-mentioned electrothermal layer 3 outsides.

As shown in Figure 1 and Figure 2, path 10 is made of heat conduction tubular body 1 external application insulating heat-conductive layer 2, or the tubular body 10 of selecting for use insulating heat-conduction material to make constitutes.

As shown in Figure 2, the utility model is made up of metal tube 1, heat conductive insulating layer 2, thermo electric material layer 3, refractory insulating layer 4.Metal tube 1 is used for sealing and carrying heated medium, heat conductive insulating layer 2 is at metal tube 1 skin, be used for efficiently conducting heat and electric insulation, thermo electric material layer 3 is outside heat conductive insulating layer 2, be used to realize the power conversion of electric heating, refractory insulating layer 4 is used to improve the thermal efficiency of medium heating outside thermo electric material layer 3, the electrical safety guarantee is provided simultaneously.The heated metal tube of the medium that flows in the metal tube surrounds, and bigger tube wall surface helps the efficient absorption thermo electric material and passes the power of coming, thereby greatly reduces the load of per surface heat exchange, realizes the exchange of high efficient cryogenic differential thermal amount.Wherein metal tube 1 selects for use copper tube to make, and heat conductive insulating layer 2 selects for use modified micaceous material to make, and thermo electric material layer 3 selects for use heating wire to make, and heat-insulation layer 4 selects for use glass fibre to make.

Claims

1, a kind of instant electric medium heater is characterized in that comprising:

A, the passage of making by heat conduction and insulating materials that allows media flow,

B, electrothermal layer is loaded onto in the above-mentioned passage outside,

2, instant electric medium heater according to claim 1 is characterized in that passage is made of the external deposited insulating heat-conductive layer of heat conduction tubulose.

3, instant electric medium heater according to claim 1 is characterized in that the tubular body that passage selects for use insulating heat-conduction material to make constitutes.

4, instant electric medium heater according to claim 1, it is characterized in that being made up of metal tube, outer outer thermo electric material layer, the outer fireproof thermal-insulation layer of thermo electric material layer of heat conductive insulating layer, heat conductive insulating layer of metal tube, the heat conductive insulating layer is between metal tube and thermo electric material layer.