CN2191622Y - Domestic water-heater for shower - Google Patents

Abstract

The utility model relates to a domestic water-heater for a shower, which is composed of a heater internally provided with a bore pipe, a heat exchanger internally provided with a rank-typed U-shaped heat-transfer pipe, heat transfer cycle water supply pipes connected to the water outlet of the heater and a water inlet of the rank-typed U-shaped heat-transfer pipe of the heat exchanger, heat transfer cycle return pipes connected to the water inlet of the heater and the water outlet of the rank-typed U-shaped heat-transfer pipe of the heat exchanger, etc. The utility model has the characteristics of no scaling, high thermal efficiency, simple structure, utilization of various household thermal sources, etc.

Description

Domestic water-heater for shower

The utility model relates to a kind of family expenses bath hot water device, particularly can use the bath hot water device of various family expenses thermals source.

Along with the raising of people's living standard, people are increasing to the demand of family expenses Bathing apparatus.At present commercially available pot-type boiler mainly contains electrothermal heater, gas heater and solar water heater, and the above two energy consumptions are more, unsafe again, gas heater particularly, accident rate is more, use to have a lingering fear, and solar water heater has its limitation.Disclosing a kind of " multi-energy source water heater " this water heater in the Chinese patent 90216297.7 is made up of preheater and reciprocating type heating plate, heating plate is converted into the bottom that is welded on preheater toward complex form, its water in-out port is gone into delivery port with preheater respectively and is linked to each other, what utilize this water heater use is the hot water of thermal source one-time heating, therefore easily fouling in the preheater, influence the thermal efficiency and the service life of water heater, and this water heater thermal efficiency is lower.

The purpose of this utility model is to provide a kind of safe and reliable at the weak point of prior art existence, all can use throughout the year, and non-scaling, do not expend electric power, can utilize the hot water apparatus of the various thermals source of family.

The purpose of this utility model is achieved in that by heater, heat exchanger, the heat transfer cycle feed pipe, the heat transfer cycle return pipe, water filling bucket and air bleeding valve are formed the utility model water heater, wherein heater is made up of the airtight metal-back that inside is equipped with several through-chamber tubes, inside is full of the water as heat transfer medium, heat exchanger is made up of the hard closed shell that inside is equipped with row's formula heat transfer U type pipe, water inlet and the delivery port of wherein arranging formula U type pipe stretch out outside the heat exchanger shell, heat transfer cycle feed pipe one end is installed in the delivery port of heater, the other end is connected on the water inlet of heat exchanger internal discharging type U type heat-transfer pipe after a threeway is installed, the other end of this threeway is installed an air bleeding valve, one of heat transfer cycle return pipe terminates on the water inlet of heater, the other end is connected on the delivery port of heat exchanger internal discharging type U type heat-transfer pipe after a threeway is installed, and the other end of this threeway is installed a water filling bucket on the position that is higher than the heat transfer cycle feed pipe.

The utility model compared with prior art has the following advantages: 1. non-scaling is that the recirculated water of sealing is made heat transfer medium because the utility model adopts, with this bath water in heat exchanger is heated up, so heat exchanger and the inner non flouling behaviour of heater; 2. the utility model can place heater on the various thermals source of family expenses and absorb heat, as coal stove, liquefied gas stove, gas appliance, even on the heating installation; 3. simple in structure, easy for installation.

Below in conjunction with accompanying drawing, the utility model is described in detail in detail with most preferred embodiment of the present utility model.

Fig. 1 is the utility model Unit Installation structural representation;

Fig. 2 is the sectional front view of the utility model heater;

Fig. 3 is the schematic top plan view of the utility model heater internal structure;

Fig. 4 is the sectional front view of the utility model heat exchanger;

Fig. 5 looks schematic diagram for the internal structure left side of the utility model heat exchanger.

As Fig. 2, shown in Figure 3, make the shell of heater 2 with metallic plate, several through-chamber tubes 18 are placed this enclosure and be welded on the bottom of this shell, again that loam cake and shell is welded together.

As Fig. 4, shown in Figure 5, make the shell of heat exchanger 11 with metallic plate, will arrange formula U type heat- transfer pipe 21,22 and place in this shell, and the recirculated water water inlet 15 of this heat-transfer pipe and delivery port 16 are stretched out outside this housing.

As shown in Figure 1, after in heat transfer cycle feed pipe 4, a threeway 5 being installed, be connected on row's formula U type heat-transfer pipe 21 of heat exchanger 11, on 22 the recirculated water water inlet 15 and the recirculated water delivery port 17 of heater 2, the other end of threeway 5 is installed an air bleeding valve 6, after in heat transfer cycle return pipe 7, a threeway 8 being installed, be connected on row's formula heat transfer U type pipe 21 in the heat exchanger 11, on 22 the delivery port 16 and the water inlet 19 of heater 2, the other end of threeway 8 is installed a water filling bucket 9 on the position that is higher than circulation heat transfer feed pipe 4, the outlet pipe 10 of heat exchanger 11 is installed on the delivery port 20 of heat exchanger, this delivery port 20 and heat exchanger internal discharging type U type heat- transfer pipe 21,22 water in-out port homonymy, another termination shower 14 of outlet pipe 10, the middle shower control valve 13 of installing, the cold water water inlet 12 of heat exchanger 11 is located at its underpart, and 1 is any family expenses thermal source among the figure.In order to increase the thermal efficiency, can around heater 2, thermal insulation board or thermal insulation layer be set, on circulation heat transfer feed pipe 4 and circulation heat transfer return pipe 7, add a thermal insulation casing.

The utility model is work like this: after heater 2 is full of water, place on any family expenses thermal source, owing to be welded with several through-chamber tubes 18 in the heater 2, has very strong heat absorption capacity, therefore inner water is heated very soon, because the water filling bucket 9 that is higher than circulation heat transfer feed pipe 4 is water-filling in heater 2 at any time, therefore because heat conducting cause hot water passes through the delivery port 17 of heater 2, row's formula U type pipe 21 of periodical feeding pipe 4 and heat exchanger 11,22 water inlet 15 row of entering formula U type pipes 21, in 22, heat is passed to water in the heat exchanger 11, and then through row's formula U type pipe 21,22 recirculated water delivery port 16, the water inlet 19 of recirculated water return pipe 7 and heater 2 is got back to heater, circulation and so forth, just the water in the heat exchanger can be heated to the temperature that needs, but at this moment open just shower or use the bathtub bathing of valve 13, when producing bubble in the heater, can drain by air bleeding valve 6, to guarantee row's formula U type pipe 21, no bubble in 22.

Claims (3)

1, a kind of family expenses bath hot water device, it can use various family expenses thermals source, one the terminating on the delivery port (17) of heater (2) of heat transfer cycle feed pipe (4) that it is characterized in that this water heater, the other end is connected on the interior row's formula U type heat-transfer pipe (21 of heat exchanger (11) after one threeway (5) is installed, 22) on the water inlet (15), one of heat transfer cycle return pipe (7) terminates on the water inlet (19) of heater (2), after the other end is installed a threeway (8), be connected on the row's formula U type heat-transfer pipe (21 in the heat exchanger (11), 22) on the delivery port (16), the other end of this threeway (8) connects a water filling bucket (9) on the position that is higher than heat transfer cycle feed pipe (14), the other end of threeway (5) is installed an air bleeding valve (6).

2, water heater according to claim 1 is characterized in that the heater of this water heater is made up of the airtight metal-back that inside is equipped with several through-chamber tubes (18).

3, water heater according to claim 1, the heat exchanger (11) that it is characterized in that this water heater is made up of the airtight hard shell that inside is equipped with row's formula heat transfer U type pipe (21,22), and wherein the water in-out port (16,15) of row's formula heat transfer U type pipe (21,22) stretches out outside the housing respectively.

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