CN202813788U

CN202813788U - Gas water heater

Info

Publication number: CN202813788U
Application number: CN201220425118.5U
Authority: CN
Inventors: 邱朝志; 李键; 郑涛
Original assignee: Haier Group Corp; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd
Current assignee: Haier Group Corp; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd
Priority date: 2012-04-01
Filing date: 2012-08-27
Publication date: 2013-03-20
Anticipated expiration: 2022-08-27

Abstract

The utility model provides a gas water heater. A pressurizing circulating system is composed of a circulating pipeline, a water pump a throttling gear and the like. The temperature of yielded water of the gas water heater is kept to be in a constant state, and the phenomenon that the yielded water is hot and clod caused by movement of water flow is avoided. At the same time, when the gas water heater is used in the beginning, or in the condition that water is not supplied in short time in using process, the water flow inside the gas water heater forms a set of closed self-circulating system, the fact that the water temperature is constant is kept by intelligent controlling of the system, so that the temperature of hot water outputting from the gas water heater can reach to the temperature which a user needs. Therefore, comfortable experience of the hot water which is output at the moment the hot water is boiled is achieved, and the problem that the gas water heater is not constant in temperature is solved, and meanwhile waste of water resources is avoided.

Description

Gas heater

Technical field

The utility model belongs to household appliance technical field, relates to specifically the improvement of gas heater internal structure.

Background technology

Existing gas heater is running into when changing into water discharge, the unsettled phenomenon of output water temperature can appear, main cause is when the flow of inlet water instantaneous variation, the heat transfer components and parts of gas heater inside can't be made a response synchronously, cause leaving water temperature at short notice to change, be our usually said not constant temperature phenomenon, this situation can be brought very large discomfort sensation to the user.At present the constant temperature technology mentioned of on the market gas heater is to realize under the constant prerequisite of discharge, when running into the current fluctuation, will inevitably cause the unstable of output water temperature, after tested, if discharge changes 5L to 7L, then the output water temperature variation can reach 5 ℃ to 10 ℃, and existing solution is as follows: 1, come auxiliary heating to keep the constant of water temperature at the outside cover electric heating tube that increases of water heater; 2, at the outside connecting pipeline of gas heater, the method that circulates with water pump heats maintenance constant temperature.

The weak point of such scheme is: 1, the design of electric heating tube is comparatively complicated, need to do insulation and anti-electric insulation processing when being installed on the water heater, bulky, the combining structure of forceful electric power and combustion gas can be brought the hidden danger of secure context, and the increase of cost also makes it be difficult to transform toward the production aspect; 2, external water pump endless form, its exterior line is complicated, and energy loss is larger.

In addition, existing water heater is aspect freezing proof technique, what generally adopt is resistance wire local heat mode, has not only additionally increased cost, also causes excess Temperature because of local heat, there is hidden danger at secure context, moreover the exhaust outlet place of water heater is near outdoor temperature, and the water inlet pipe and water outlet pipe position is near indoor temperature, both temperature difference are very large, will certainly heat temperature and cause waste on the energy because of same.

The utility model content

For solving the problem of the not constant temperature that has gas heater now, a kind of low cost, safe gas heater are proposed, for addressing the above problem, the utility model is realized by the following technical solutions:

A kind of gas heater, comprise housing, and the water inlet pipe, outlet pipe and the connection that are positioned at housing be connected the connecting line of inlet tube and outlet tube, it is characterized in that: also comprise circulation line, this circulation line is connected between the described connecting line, which is provided with check valve; Water pump, this water pump is arranged on the water inlet pipe place; Threeway, described water inlet pipe connect the upstream side of described check valve and water pump via described threeway; Throttling arrangement, this throttling arrangement is arranged on the connecting line in described water pump downstream.

Further, the utility model also has following technical characterictic: described connecting line is provided with storage tank, and this storage tank is fixed on the described housing.

Further, the utility model also has following technical characterictic: described storage tank is arranged on the described n shape connecting line by rising pipe side.

Further, the utility model also has following technical characterictic: described throttling arrangement is choke valve.

Compared with prior art, advantage of the present utility model and good effect are as follows:

The utility model forms the supercharging circulatory system by circulation line, water pump and throttling arrangement etc., can make the leaving water temperature of gas heater remain steady state, avoids occurring the sometimes hot and sometimes cold phenomenon of water outlet that causes because of the current fluctuation; Simultaneously, in the use of water heater initial stage or situation about in use not supplying water in short-term, the current of water heater inside form the self-circulation system of a cover sealing, Based Intelligent Control by system is to keep the constant of water temperature, so that water heater hot water out can reach the temperature that the user needs, the comfortable experience that instant-heating and outlet hot is namely opened in real realization has thoroughly solved the not problem of constant temperature of gas heater, has also avoided the waste of water resource simultaneously.

After reading by reference to the accompanying drawings the specific embodiment of the present utility model, other characteristics of the present utility model and advantage will become clearer.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or the description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is embodiment one structural representation;

Fig. 2 is embodiment two structural representations;

Among each figure:

1, water inlet pipe; 2, threeway; 3, water pump; 4, choke valve; 5, check valve; 6, burner; 7, heat exchanger; 8, connecting line; 9, blower fan; 10, threeway; 11, temperature sensor; 12, outlet pipe; 13, stop valve; 14, housing; 15, storage tank; 16, circulation line.

The specific embodiment

Embodiment one, and with reference to figure 1, this enforcement proposes the antifreeze pressurized water-saving type of a kind of constant temperature gas heater, comprises housing 14, and the combustion heating unit, pipe-line cell, control system and the supercharging circulatory system that are positioned at housing.

Described pipe-line cell comprises water inlet pipe 1, outlet pipe 12, and the n shape connecting line 8 between the connection inlet tube and outlet tube, the combustion heating unit is run through at the middle part of this connecting line 8, connects circulation line 16 between the two ends of this connecting line 8, is positioned at the outer outlet pipe 12 of housing and is provided with stop valve 13.The form of present embodiment connecting line 8 is not limited to above-mentioned n shape for example, also can be S shape etc.

The described supercharging circulatory system comprises the check valve 5 that is arranged on circulation line, is arranged on water pump 3, threeway 2 and the throttling arrangement at water inlet pipe place, and described water inlet pipe 1 connects the upstream side of described check valve 5 and water pump 3 via described threeway 2; Described throttling arrangement is arranged on the connecting line 8 in described water pump 3 downstreams.The present embodiment throttling arrangement is from cost and be easy to install equal angles and consider adopt choke valve 4, certainly also can adopt other forms, as realizing the automatic control of the size of valve opening by magnetic valve and controller etc., thereby realizes throttling.

Described combustion heating unit adopts enclosed construction, and inner and upper is provided with heat exchanger 7, and the below is provided with burner 6, and burner 6 belows are provided with blower fan 9, and when burner 6 work, the water of flowing through in the heat exchanger 7 by 7 pairs on heat exchanger heats.Described control system comprises controller and sets out temperature sensor 11 on the water pipe.

The specific works process is as follows:

When water outlet stop valve 13 was closed, it was excessively low to detect water temperature by temperature sensor 11, started the combustion heating unit; effect by water pump; hot water is circulated in enclosure interior, and components and parts are not damaged by frost in the protection housing, stopped heating when the temperature of the safety that reaches setting; thereby; can realize the batch (-type) heating by the control to the enclosure interior water temperature, not only safe and effective; also can reduce cost, energy savings.

When water outlet stop valve 13 is opened, cold water is driven by water pump 3 by threeway 2 through water inlet pipe 1 and enters in the housing 14 after choke valve 4 throttlings, it is invariable to adjust flow of inlet water according to the temperature of default by choke valve, water heater comes pressure and the quantity delivered of control combustion device by temperature sensor and control system, adjust simultaneously the air output of blower fan 9, in burner 6 interior abundant burnings, after being heated, the water of heat exchanger 7 inside flowed out the hot water of constant temperature by outlet pipe 12, because discharge is constant, the thermic load of water heater also is constant, and the water of outflow can reach the constant temperature effect naturally.

Because check valve 5 is just can open under certain pressure, therefore, when the water outlet stop valve is opened, check valve 5 outlet pressures are greater than inlet pressure, water flows out through outlet pipe by threeway 10, guarantees that water heater when normal the use, can not form the self-loopa of internal hot-water.

When running into the situation of the low or with no pressure of hydraulic pressure, pressurization by water pump 3 and choke valve are to flow-control, thereby the utility model is under various pressure conditions, can bring the comfortable experience of large flow spray to the user, and can pass through to change throttle valve control discharge by user's requirement, thereby reach the purpose of saving water and energy.

The utility model is by containing the supercharging circulatory system at the inner cover that increases of water heater, and its volume is exquisite, simple installation, and cost is low, energy-conserving and environment-protective, the constant temperature effect is remarkable.In addition, aspect antifreeze, reduced the electrical heating components and parts, when having reduced cost, also made gas heater safer more energy-conservation.

Embodiment two, with reference to figure 2, present embodiment proposes the antifreeze pressurized water-saving type of a kind of storage-type constant temperature gas heater, be with the difference of embodiment one: present embodiment arranges a storage tank 15 at tube connector 8, described storage tank 15 can be arranged on connecting line 8 also can be arranged on connecting line by rising pipe side by the water inlet pipe side, preferably be arranged on by rising pipe side, described storage tank can store a certain amount of constant-temperature hot water, the water temperature that can avoid the current fluctuation to cause changes, and guarantees that water temperature is constant, lasting.

Above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to previous embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.

Claims

1. a gas heater comprises housing, and the water inlet pipe, outlet pipe and the connection that are positioned at housing be connected the connecting line of inlet tube and outlet tube, it is characterized in that: also comprise

Circulation line, this circulation line is connected between the described connecting line, which is provided with check valve;

Water pump, this water pump is arranged on the water inlet pipe place;

Threeway, described water inlet pipe connect the upstream side of described check valve and water pump via described threeway;

Throttling arrangement, this throttling arrangement is arranged on the connecting line in described water pump downstream.

2. gas heater according to claim 1, it is characterized in that: described connecting line is provided with storage tank, and this storage tank is fixed on the described housing.

3. gas heater according to claim 2 is characterized in that: described storage tank is arranged on the described connecting line by rising pipe side.

4. gas heater according to claim 3, it is characterized in that: described throttling arrangement is choke valve.