CN2636188Y

CN2636188Y - Water heater of air heating device

Info

Publication number: CN2636188Y
Application number: CN 03269385
Authority: CN
Inventors: 武际信
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-08-07
Filing date: 2003-08-07
Publication date: 2004-08-25
Anticipated expiration: 2013-08-07

Abstract

The utility model relates to a central heating water heater, which comprises a sealed shell. Wherein, the inner cavity of the shell is fixedly arranged with a heater exchanger; the upper end of the heater exchanger is communicated with a central heating water inlet tube and the lower end of the heater exchanger is communicated with a central heating return water tube; the bottom of the shell inner cavity is fixedly arranged with a horizontal cooling water inlet tube which goes through the shell and is communicated with a running water tube and the top of the shell inner cavity is fixedly arranged with a horizontal hot water outlet tube which goes through the shell and externally extends; the tube wall of the cooling water inlet tube is densely distributed with small orifices and the tube wall of the hot water outlet tube is densely distributed with small inlet openings; the heater exchanger is a double wall tube structure composed of an outer tube and an inner tube; the gap between the outer tube and the inner tube is a water jacket; the water jacket is sealed with the shell inner cavity and communicated with the central heating water inlet tube and the central heating return water tube; the openings of the upper and the lower ends extends upward near the hot water outlet tube at the shell inner cavity and the upper section of the inner cavity. The central heating water heater has rapid heat exchange speed and provides the users with hot water with the highest temperature.

Description

Water heater in central heating

Technical field

The utility model relates to a kind of water heater, a kind of water heater in central heating of more specifically saying so.

Background technology

Cold heating of house in winter, having is to adopt the heating installation plate heat interchanger greatly.This heating system though can promote indoor temperature, can not use hot water for the user.In order to use hot water for the user with radiator, the inventor is once with regard to " box-type heating heater using water ", applied for patent, the patent No. is 94240624.9, the technical scheme of this patent disclosure comprises and has water inlet pipe mouth and effluent pipe mouth, and the outer casing shell of sealing, is welded with heat exchanger in the outer casing shell inner chamber.The drawback of this technical scheme is: 1, by the cyclic water jacket that the gap constituted between outer casing shell and the heat exchanger, in the season of not heating,, just water in the cyclic water jacket can be bled off owing to reasons such as maintenances of equipment, cyclic water jacket can produce severe oxidation and corrosion, and shortened the service life of water heater; 2, because outer casing shell and Welding of Heat-exchanger together, make trouble inefficiency.

Summary of the invention

The purpose of this utility model provides a kind of long service life, is convenient to make and supplies the user employed is the water heater in central heating of the highest hot water of water temperature.

In order to realize above-mentioned purpose, this water heater in central heating, the housing that comprises sealing, be fixed with heat exchanger in the inner chamber of housing, the upper end of heat exchanger is communicated with heater inlet pipe, the lower end of heat exchanger is communicated with the heating installation return pipe, it is overhanging that heater inlet pipe and heating installation return pipe pass housing respectively, its design feature is that the intracavity bottom at housing is fixed with and passes that housing is communicated with running water pipe and the cold water inlet pipe of level trend, be fixed with the hot water out pipe that passes the overhanging and level trend of housing at the interior top of chamber of housing, be densely covered with ostium excurrens on the tube wall of cold water inlet pipe, be densely covered with into water aperture on the tube wall of hot water out pipe, heat exchanger is the two-layer pipe that is made of outer tube and interior pipe, gap between outer tube and the interior pipe is a water jacket, water jacket and housing bore seal, be communicated with heater inlet pipe and heating installation return pipe, both ends open is in the housing inner chamber about the interior pipe, reach on its epimere hot water out pipe near.

Above-mentioned ostium excurrens is arranged on the diapire of cold water inlet pipe, and the water inlet aperture is arranged on the roof of hot water out pipe.The aperture of ostium excurrens and water inlet aperture respectively is 6-8mm.

Use for convenience, at the position that the cold water inlet pipe is positioned at outside the housing valve is housed, valve is equipped with at the position outside hot water out pipe is positioned at housing.For guaranteeing safety, the valve on the cold water inlet pipe is a two-way valve.

As the improvement to this water heater in central heating, above-mentioned heat exchanger is two groups at least, and the water jacket between each group is communicated with by tube connector.

During installation, heater inlet pipe and heating installation return pipe are connected on respectively in the corresponding pipeline of heating system, the cold water inlet pipe is communicated with running water pipe.During work, the housing inner chamber is filled with housing inner chamber by the cold water inlet pipe through ostium excurrens by the pressure of running water, and hydraulic pressure equates with the pressure of running water, when the heating system heat supply, the heat energy that heating system is supplied with in the heat exchanger carries out heat exchange by the cold water in water jacket and the housing inner chamber, give cold water with thermal energy transfer, cold water temperature is risen, because the middle hypomere of interior pipe is surrounded by water jacket, thereby the cold water temperature that is arranged in pipe rises the fastest, and along interior pipe rising, accumulate in the top of housing inner chamber after flowing out from the upper end of interior pipe, the low cold water of temperature flows to from the lower end of interior pipe, this process moves in circles, cold water in the housing inner chamber is heated into hot water, and the highest hot water of temperature accumulates in the top of housing inner chamber, the water inlet aperture on the hot water out pipe through being positioned at this position enters hot water out pipe, use for the user, the cold water inlet pipe replenishes running water to the housing inner chamber at any time.Temperature rising along with the water in the housing inner chamber, volume increases, the increase also corresponding to the pressure of housing, for guaranteeing safety, valve on the cold water inlet pipe is selected two-way valve for use, when the user did not use hot water to cause the housing chamber pressure excessive, the water in the housing inner chamber can flow backwards to running water pipe by this two-way valve, realized pressure balance.

By above narration as can be known, water heater in central heating described in the utility model, housing bears tap water pressure, heat exchanger bears the heating installation circulating water pressure, and under these two pressure effects, recirculated water can circulate automatically, using under the situation of hot water running water supply automatically.The beneficial effect of this water heater in central heating is: 1, because interior pipe is filled the water jacket encirclement of heating system hot water, thereby rate of heat exchange is fast, and the user can use hot water at short notice; 2, hot water out pipe is arranged on the highest zone of housing inner chamber water temperature, is the highest hot water of water temperature forever for the employed hot water of user, particularly when bathing, has avoided the sometimes hot and sometimes cold phenomenon of water temperature to take place, for the user brings convenience; 3, because the water jacket and the housing bore seal of heat exchanger, in the season of not heating, even if recirculated water is bled off, heat exchanger and shell inner surface can oxidations and corrosion yet, thereby prolonged the service life of water heater in central heating; 4, because housing and heat exchanger are independent separately, thus easy to manufacture.

Description of drawings

Embodiment of the present utility model is illustrated in conjunction with the accompanying drawings, wherein:

Fig. 1 is the structural representation of the described water heater in central heating of embodiment;

Fig. 2 is the A-A cutaway view of Fig. 1.

The specific embodiment

With reference to accompanying drawing, the described water heater in central heating of embodiment, the housing 1 that comprises sealing, be fixed with heat exchanger in the inner chamber of housing 1, the upper end of heat exchanger is communicated with heater inlet pipe 2, the lower end of heat exchanger is communicated with heating installation return pipe 3, it is overhanging that heater inlet pipe 2 and heating installation return pipe 3 pass housing 1 respectively, be fixed with at the intracavity bottom of housing 1 and pass that housing 1 is communicated with running water pipe and the cold water inlet pipe 4 of level trend, valve 11 is equipped with at position outside cold water inlet pipe 4 is positioned at housing 1, valve 11 is two-way valves, be fixed with the hot water out pipe 5 that passes the overhanging and level trend of housing 1 at the interior top of chamber of housing 1, valve 12 is equipped with at position outside hot water out pipe 5 is positioned at housing 1, be densely covered with ostium excurrens 6 on the bottom tube wall of cold water inlet pipe 4, be densely covered with into water aperture 7 on the push pipe wall of hot water out pipe 5, the aperture of ostium excurrens 6 and water inlet aperture 7 respectively is 6-8mm, heat exchanger is the two-layer pipe that is made of outer tube 8 and interior pipe 9, gap between outer tube 8 and the interior pipe 9 is a water jacket 10, water jacket 10 and housing 1 bore seal, be communicated with heater inlet pipe 2 and heating installation return pipe 3, interior pipe about in the of 9 both ends open in housing 1 inner chamber, reach on its epimere hot water out pipe 5 near.

In the present embodiment, the quantity of heat exchanger is two groups, and the water jacket 10 between each group is communicated with by tube connector 13.The outer tube of heat exchanger and interior pipe are selected copper pipe for use.

Claims

1, a kind of water heater in central heating, the housing (1) that comprises sealing, be fixed with heat exchanger in the inner chamber of housing (1), the upper end of heat exchanger is communicated with heater inlet pipe (2), the lower end of heat exchanger is communicated with heating installation return pipe (3), it is overhanging that heater inlet pipe (2) and heating installation return pipe (3) pass housing (1) respectively, it is characterized in that intracavity bottom at housing (1) is fixed with passes that housing (1) is communicated with running water pipe and the cold water inlet pipe (4) of level trend, be fixed with the hot water out pipe (5) that passes the overhanging and level trend of housing (1) at the interior top of chamber of housing (1), be densely covered with ostium excurrens (6) on the tube wall of cold water inlet pipe (4), be densely covered with into water aperture (7) on the tube wall of hot water out pipe (5), heat exchanger is the two-layer pipe that is made of outer tube (8) and interior pipe (9), gap between outer tube (8) and the interior pipe (9) is water jacket (10), water jacket (10) and housing (1) bore seal, be communicated with heater inlet pipe (2) and heating installation return pipe (3), interior pipe (9) up and down both ends open in housing (1) inner chamber, reach on its epimere hot water out pipe (5) near.

2, water heater in central heating according to claim 1 is characterized in that ostium excurrens (6) is arranged on the diapire of cold water inlet pipe (4).

3, water heater in central heating according to claim 1 is characterized in that into water aperture (7) is arranged on the roof of hot water out pipe (5).

4, water heater in central heating according to claim 1 and 2 is characterized in that valve (11) is equipped with at the position outside cold water inlet pipe (4) is positioned at housing (1).

5,, it is characterized in that valve (12) is equipped with at the position outside hot water out pipe (5) is positioned at housing (1) according to claim 1 or 3 described water heater in central heating.

6, water heater in central heating according to claim 4 is characterized in that the valve (11) on the cold water inlet pipe (4) is a two-way valve.

7,, it is characterized in that the aperture of ostium excurrens 6 and water inlet aperture 7 respectively is 6-8mm according to claim 1,2 or 3 described water heater in central heating.

8, water heater in central heating according to claim 1, the quantity that it is characterized in that heat exchanger is two groups at least, the water jacket (10) between each group is communicated with by tube connector (13).