CN2342302Y - Hot water remover for gas water heater - Google Patents

Abstract

The utility model belongs to a hot water removing device for a gas water heater, which is used for eliminating the hot water produced in a heat exchanger of the water heater when a water inlet valve of a smoke gas water heater is midway closed and prevents the hot water from flowing out when the water inlet valve is opened again. The device is mainly composed of a branch water pipe which is connected to an inlet of the heat exchanger, a cold water storage container whose volume can be regulated, a gas outlet valve which is controlled through the water level in the container. The cold water is stored during normal bathing; when the water inlet valve is midway closed, the stored cold water is drained out and is absorbed through the heat exchanger, heat stored on the heat exchanger is carried away, and accordingly, the hot water can not be produced any more; the event that a person is scalded can not occur when the water inlet valve is opened again.

Description

The gas heater hot water remover

The utility model relates to a kind of gas heater hot water remover.

During shower, the water-flowing gas water heater leaving water temperature generally transfers to 40 degree Celsius to 45 degree, often in short-term water intaking valve is closed by (as soap time) midway, and then opens water intaking valve.Make water, gas interstage valve action cut-out source of the gas cause fray-out of flame though water intaking valve is closed, the heat transfer sheet of heat exchanger, copper plumbing have been burnt to such an extent that have very high-temperature, store certain heat energy.Because water intaking valve is closed, water in the heat exchanger copper plumbing stops to flow, heat transfer sheet, copper plumbing store these absorb the heat energy taken away by more flowing water originally and stop this section water that flows in the copper plumbing and make it become very boiling hot water with regard to having passed to, the water that this section is very boiling hot when opening water intaking valve once more just flows out.After measured, the temperature of the boiling hot water of this section of water heater that heating power is less to 60 degree, has made the people feel sick at 55 degree Celsius, and the temperature of the bigger boiling hot water of this section of gas heater of heating power sometimes even reach more than 70 degree Celsius.The volume of the boiling hot water of this section is decided by the internal diameter and the length of heat exchanger position copper plumbing, generally about 100 milliliters to 140 milliliters.

It is investigated still do not have gas heater at present and solved the hot problem of this section water.People adopt the way of dodging usually in the practice, promptly open the water intaking valve forefathers again and leave the water outlet shower head, treat to return under the water outlet shower head after the boiling hot water of this strand flows out.Yet still be to have the people to forget by chance to dodge, at this moment the people will feel sick even take place the scald accident.

The purpose of this utility model is to eliminate the hot water of this strand, makes water intaking valve close one section water water temperature of arrheaing in the heat exchanger copper plumbing of back and still is in the temperature range of suitable bathing, opens once more when this section water flows out behind the water intaking valve not make the people feel hot.

The purpose of this utility model is achieved in that

Open a branch road in addition on the cold water pipes behind heat control valve, before the heat exchanger and lead to the adjustable storage cold water vessels of a volume, when water intaking valve was opened, cold water also filled the storage cold water vessels that into mixes up volume by the branch road water pipe except that flowing to heat exchanger.When water intaking valve is closed, when main burner stops working, the cold water in the storage cold water vessels under deadweight and compressed-air actuated effect the discharge currents heat exchanger with the heat that absorbs heat transfer sheet, copper plumbing and store and continue to flow to shower head.The moisture storage capacity of storage cold water vessels will be adjusted to the temperature that the water water temperature that has stopped flowing in the heat exchanger part copper water pipe can be raised to suitable bathing when the cold water that stores has been arranged, when opening water intaking valve once more, just no longer include one boiling hot water and flow to the person upward.Concerning the water heater of different brands, model, specification, the cool water quantity that should store is different, but concerning the water heater of a certain concrete brand, model, specification, does not have big variation after the cool water quantity that should store mixes up, generally do not need to transfer again, therefore can not cause the trouble in the use.

Concrete structure of the present utility model can be provided by following examples and accompanying drawing:

The lower left quarter of accompanying drawing is the basic principle figure of various water-flowing gas water heaters, and the branch road that begins from threeway (12) partly is a structure chart of the present utility model.

Below in conjunction with details and the working condition of accompanying drawing detailed description according to the concrete device that the utility model proposes.

Three-way connection (12) be connected to heat control valve (10) afterwards, heat exchanger (14) before, (15) one in branch road water pipe is connected to threeway (12), the other end leads in storage cold water vessels standing part (17), and the installation site of storage cold water vessels (17) must be a little more than heat exchanger (14).In the storage cold water vessels standing part (17) float (18) is housed, float (18) can be welded in storage cold water vessels standing part (17) top, slide along vertical in outside threaded swivel nut (20) endoporus, swivel nut (20) hole wall has axial outgassing groove (19), dome fluid sealant lid (22) is equipped with at float (18) top, (21) valve gap of venthole (24) is arranged in being, dome fluid sealant lid (22) forms air valve mouth (23) in venthole (24) end.(26) for regulating the movable part of storage cold water vessels volume.

It is as follows that the utility model is eliminated the operation principle of scalding water:

After water heater gas valve (5) is opened, little fire kept burning day and night (2) is promptly lighted, open cold water valve (8) back cold water one tunnel enters in the aqueous vapor interstage valve, water pressure pushing rubber diaphragm (9) is opened aqueous vapor interstage valve combustion gas valve port (4), combustion gas enters in the main burner (3), big fire burns, another road cold water enter through heat control valve (10), three-way connection (12) and flow out from shower head (1) after heat exchanger copper plumbing (14) absorption heat becomes hot water.When cold water process three-way connection (12), also enter storage cold water vessels (17) from arm (15).Cold water flow into storage cold water vessels (17) for the previous period in water level lower, float (18) is because deadweight decline, exhaust valve port (23) is opened, air (25) in the storage cold water vessels (17) can pass through groove (19), valve port (23) is discharged, and air (25) pressure of cold water (16) top is zero.When the water level of cold water (16) rises to a certain degree, float (18) floats, the valve port (23) of giving vent to anger is promptly closed, air (25) in the storage cold water vessels (17) can not flow out, the water level that continues to flow to the cold water (16) of container (17) also can raise, the air (25) that is enclosed in the container can be compressed, and air pressure can raise.Equal current when heat exchanger (14) flows to the on-way resistance of shower head (1) when air (25) pressure rises to, promptly stop to flow in container (17), air (25) keeps established pressure.

When closing water intaking valve (8) midway, the aqueous vapor interstage valve is closed combustion gas valve port (4) immediately, and main burner (3) big fire is extinguished immediately.Owing to load onto the utility model device, the water that can't cause in the heat exchanger (14) of closing of water intaking valve (8) stops to flow immediately, because the cold water (16) that stores in the storage cold water vessels (17) beginning a period of time flows out with bigger flow under the pressure synergy of deadweight and compressed air (25) and absorbs the more heat that heat exchanger also is in the condition of high temperature through over-heat-exchanger (14), the back segment time is because the cold water outflow, the interior water level of container (17) descends, valve port (23) can be opened, and cold water (16) only flows out the heat that absorbs heat exchanger (14) storage of having lowered the temperature by heat exchanger (14) with less flow under the deadweight effect.This section cold water Variations in Flow Changes and heat exchanger heat radiation process adapt.When the cold water in the container (17) stopped to outflow, the unnecessary heat that heat exchanger stores also had been absorbed.Suitably adjust the capacity of storage cold water vessels (17) and the height of valve gap (21), can make the water water temperature that stops to flow in the heat exchanger (14) be in the temperature of suitable bathing and no longer be the water that scalds the people, when opening water intaking valve once more, just there is not one boiling hot water to flow out yet.

Claims (1)

1, the gas heater hot water remover, this device is made up of storage cold water vessels sub-assembly (17), (26), float (18), dome fluid sealant lid (22), swivel nut (20) and the valve gap (21) of three-way connection (12), branch road water pipe (15), volume adjustable, it is characterized in that:

(1), branch road water pipe (15) is connected to gas heater heat exchanger (14) before by three-way connection (12), and storage cold water vessels (17) installation site that communicates with branch road water pipe (15) is a little more than water heater heat exchanger (14);

(2), the valve port of giving vent to anger (23) that the float (18) of dress, dome fluid sealant lid (22) and valve gap (21) are formed in the storage cold water vessels (17), when water level is low in the storage cold water vessels (17), the valve port (23) of giving vent to anger is in opening, when water level in the storage cold water vessels (17) rises to the requirement height, because the buoyancy of float (18) is closed air outlet valve mouth (23), the cold water that enters again in the storage cold water vessels (17) can make air compression in the container, produces to equal flowing water by the pressure of heat exchanger (14) to water outlet shower head (1) on-way resistance;

(3), after the water intaking valve (8) of gas heater is closed, cold water in the storage cold water vessels (17) is earlier under the synergy of compressed air pressure and deadweight, after only under the deadweight effect, discharge with first big after small flow, flow through heat exchanger (14) and absorb, take away water intaking valve (8) and stored up the into heat of heat exchanger (14) when closing, no longer produce one section boiling hot water;

(4), regulate storage cold water vessels movable part (26) and valve gap (21) and can access suitable storage cool water quantity, so that the water temperature that is stored in the heat exchanger (14) is in suitable bathing temperature.