CN2585119Y

CN2585119Y - Device for water heating without scale and with high pressure resistance

Info

Publication number: CN2585119Y
Application number: CN 01213160
Authority: CN
Inventors: 党坤选; 路英梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-04-04
Filing date: 2001-04-04
Publication date: 2003-11-05
Anticipated expiration: 2011-04-04

Abstract

The utility model discloses a device for heating water without scale and with high pressure resistance. The utility model belongs to the technical field of engineering heat transfer, and can be applied to industries, such as a hot water boiler, an electric water heater, etc. The utility model is characterized in that the inner part of a container is provided with a tubular heat exchanger which is wound. A heater is used for heating water in the container, the water in the container causes heat to be transferred to tap water in the tubular heat exchanger through a wall of the tubular heat exchanger, the temperature of the tap water in the tubular heat exchanger is raised to supply to people. Therefore, the purpose of no formation of scales is realized.

Description

A kind of not scaling and the high voltage bearing device that adds hot water

The utility model discloses a kind of not scaling and the high voltage bearing device that adds hot water, belong to engineering heat transfer technology field.Can be applicable to industry categories such as hot-water boiler, electric heater.

The existing device that adds hot water, normally running water injects a bigger container by pipeline, heat energy passes to container water to be heated by the electrothermal tube wall that places container or heat energy is directly passed to container water to be heated by the container wall, and water temperature is increased to flow out behind the suitable temperature and uses for the people.

In fact, in a lot of areas, because hardness of water is higher, the water in the container can be separated out some mineral matters after temperature raises, and these mineral deposits are on the wall of a container face or be deposited on the wall of heating tube and form incrustation scale.Along with the thickening of scale crust, the thermal resistance of chamber wall or heating tube is increasing, finally can cause losing efficacy.

On the other hand, container diameter is bigger, bear higher hydraulic pressure, and wall just must be done thicklyer, normally forms with Metal Material Welding.Manufacturing inspection is comparatively complicated, and cost is higher.

Existing scale-removing method for disposable current, generally is to take technology such as magnetization or high frequency oscillation, makes every effort to lack scaling as far as possible, in use for some time chamber wall is carried out artificial or chemical cleaning again, and is time-consuming, very trouble.

The purpose of this utility model provides a kind of not scaling and the high voltage bearing device that adds hot water.This device will fundamentally overcome the defective of prior art, reach the not incrusted main purpose of long-term use, in addition, under lower production cost condition, can tolerate higher operating pressure.

Describe the implementation of device described in the utility model in detail below with reference to accompanying drawing:

Accompanying drawing 1 is the principle schematic of device described in the utility model.

Accompanying drawing 2 is heat exchanger partial schematic diagrams when making the external finned tube structure of device described in the utility model.

With reference to accompanying drawing 1, among the figure: [1]-chamber wall; [2]-electric heating tube; [3]-the water filling interface; [4]-exhaust port; [5]-heat exchanger tube; [6]-water inlet; [7]-delivery port; [8]-water in the container.Have water filling interface [3] and exhaust port [4] on the chamber wall of making by high-temperature resistance plastice or metal sheet [1], electrothermal tube [2] is loaded on the chamber wall [1], metal heat exchanger tube [5] coils in container, and water inlet [6], delivery port [7] extend external container through chamber wall [1] and link to each other with the water-in and water-out passage: the internal diameter of heat exchanger tube [5] is that the internal diameter of 5～30 millimeters and heat exchanger tube [5] is less than 1/15 of inside diameter of vessel; Before the use, running water is injected in the container earlier, when treating that water is annotated 90% left and right sides to vessel volume, close water filling interface [3] and exhaust port [4] respectively with lid through water filling interface [3]; When being heated to suitable temperature below the boiling point, electric heater [2] will inject container under temperature controller control water [8] closes, after reducing, the water in the container [8] temperature connects electric heater [2] heating again, circulation is so repeatedly kept water [8] in the container in a suitable temperature levels; When using hot water, running water enters heat exchanger tube [5] through water inlet [6], and the water [8] in the wall by heat exchanger tube [5] and the container of high temperature carries out the dividing wall type heat exchange to be made temperature improve the back to flow out and use for the people.

Because the water [8] in the container is prolonged and repeated use, therefore, chamber wall [1] inboard and electrothermal tube [2] outside, heat exchanger tube [5] outside all can not produce incrustation scale; Internal diameter by heat exchanger tube [5] is 10 millimeters, 400 millimeters calculating of container diameter, the inboard scaling rate of heat exchanger tube [5] only is about 1/40 of a common heating method, in addition during water in the heat exchanger tube [5] flow velocity higher, can form existing incrustation scale and force to wash away, one of percentage of chamber wall scaling rate or lower when therefore, the speed of the inboard fouling of heat exchanger tube [5] may only be the heating of usefulness common heating method.By present when heating with the common heating method scale removal cycle of inwall be to calculate in 1 year, then a life cycle conservative estimation of heat exchanger tube [5] can reach more than decades, had satisfied the requirement in service life of general industry product.In other words, can use decades continuously and need not scale removal by the water-heating device of the utility model production, thereby realize not incrusted purpose.

Because the weight that chamber wall [1] only bears water is not born hydraulic pressure, therefore, chamber wall [1] can adopt thin sheet metal manufacturing or adopt high-temperature resistance plastice injection moulding, plastic uptake, welding fabrication, thereby has reduced the container manufacturing cost and can make arbitrary shape; Internal diameter by heat exchanger tube [5] is 10 millimeters, 1 millimeter calculating of wall thickness, and the voltage endurance capability of the heat exchanger tube of copper or aluminium material [5] can reach more than the 10MPa, thereby has realized high voltage bearing purpose.

Produce pressure for avoiding container gas in heating process to expand, covering of exhaust port [4] has aperture, plays with ambient air to be communicated with effect.

In order to reduce the evaporation of the water in the container [8] in the heating process, can upward overlap a balloon-like rubber pocket or the water in container [8] upper surface at exhaust port [4] and drip the material that a small amount of oil or paraffin etc. can be kept afloat and are difficult to volatilize.

In order to improve the exchange capability of heat of heat exchanger tube [5], can make screw-like or in pipe, install disturbing flow device additional at internal face as shown in Figure 2 in its outside installing fin or rolled fin.

For improving heat transfer intensity and heat transfer temperature difference, the water when needing in the container [8] can add suitable salinity and improve boiling point, and in case of necessity, the higher liquid of usable oils or other boiling point replaces water.

Not scaling and the high voltage bearing device that adds hot water made by the utility model, when making electric heater or electric hot water type product, container is the inner bag of product, the thermoplastic of the available metal sheet of chamber wall [1], polyethylene, polypropylene or other ability high temperature more than 80 ℃ is made, water inlet [6], delivery port [7] connect water heater temperature's control valve system, convert the composition and division in a proportion example by change and obtain the suitable water temperature and the water yield.

By not scaling and the high voltage bearing device that adds hot water that the utility model is made, when making outer wall heated type boiler, chamber wall [1] can adopt steel plate welding or metal casting.

Not scaling and the high voltage bearing device that adds hot water made by the utility model, heat exchanger tube [5] can adopt that metal tube light pipes such as copper pipe, aluminum pipe are coiled to form, the installing of the light pipe outside or rolled fin are coiled to form or make as the integral body of the pattern of the condenser of air-conditioner and insert in the water [8] in the container, and running water is walked in the pipe.

Not scaling and the high voltage bearing device that adds hot water made by the utility model, thus can stir and improve heat exchange rate by in container, installing agitator additional.

By not scaling and the high voltage bearing device that adds hot water that the utility model is made, when container adopted the outer wall heating, chamber wall [1] was a metal material, can not adorn electrothermal tube [2] on the chamber wall [1].

Claims

1, a kind of not scaling and the high voltage bearing device that adds hot water, have water filling interface [3] and exhaust port [4] on the chamber wall [1] that it is characterized in that making by high-temperature resistance plastice or metal sheet, electrothermal tube [2] is loaded on the chamber wall [1], metal heat exchanger tube [5] coils in container, and water inlet [6], delivery port [7] extend external container through chamber wall [1] and link to each other with the water-in and water-out passage; The internal diameter of heat exchanger tube [5] be the internal diameter of 5～30 millimeters and heat exchanger tube [5] less than 1/15 of inside diameter of vessel, from water inlet [6] through heat exchanger tube [5] to delivery port [7] for needing the running water passage of heating.

2,, it is characterized in that chamber wall [1] can adopt thin metallic plate manufacturing or the injection moulding of employing high-temperature resistance plastice, plastic uptake, be welded into arbitrary shape by described a kind of not scaling of claim 1 and the high voltage bearing device that adds hot water; Have on the lid of exhaust port [4] that aperture is communicated with atmosphere or go up cover one balloon-like rubber pocket at exhaust port [4], fin or rolled fin can be installed in heat exchanger tube [5] outside.

3,, it is characterized in that heat exchanger tube [5] can adopt that metal tube light pipes such as copper pipe, aluminum pipe are coiled to form, the installing of the light pipe outside or rolled fin be coiled to form or make the integral body as the pattern of the condenser of air-conditioner by described a kind of not scaling of claim 1 and the high voltage bearing device that adds hot water.

4,, it is characterized in that in container, to install additional agitator and stir by described a kind of not scaling of claim 1 and the high voltage bearing device that adds hot water.