CN201819258U - Pipeline system of water heater - Google Patents

Abstract

The utility model discloses a pipeline system of a water heater, which relates to a household furnace for solid fuel and comprises a water tank, a water inlet pipe and a water outlet pipe, wherein the water inlet pipe is connected with the water tank through a first check valve; part of pressure relief pipe is soaked into the upper layer and the lower layer of the water tank; one end of the pressure relief pipe is communicated with the top of the inner chamber of the water tank, and the other end of the pressure relief pipe passes through the water tank; the pressure relief pipe is connected with the water inlet pipe through the pressure relief check valve; and the pressure relief is also provided with a temperature pressure safety valve. The pipeline system of the water heater has a simple pipeline, is convenient to use, high safety and high efficiency and is suitable for applying to various stoves with water heating functions.

Description

The pipe-line system of water heater

Technical field

The utility model relates to a kind of solid-fuelled domestic burners, particularly relates to a kind of stove and accessory with hot water function.

Background technology

The water heater of present buring solid fuel such as biomass fuel, moulded coal mostly is airtight water tank and connects water inlet pipe and outlet pipe, by high temperature combustion chamber or high-temperature flue conduction and radiant heat water is heated, and hot water is provided easily.This class water heater, in continuous heating process, water tank upper can form vapor film and constantly strengthen, and common way is the effect that the setting pressure safety valve plays safeguard protection on the top of water tank or outlet pipe, but, reduced stove and accessory efficient because steam directly discharges the waste that causes the energy; Also there is the relief tube of employing to connect check-valves and is connected to water inlet pipe, make the steam on upper strata be back to water inlet pipe again along relief tube condensation cooling, long and water can make the water temperature that is back to water inlet pipe constantly raise seldom the time when burning time, damages the pipeline pipe fitting even causes the scald accident.

Summary of the invention

It is simple, easy to use that the purpose of this utility model provides a kind of pipeline, keeps tank pressure, continues to provide the hot water and the pipe-line system of water heater safely and efficiently.

The utility model is to realize by following technical scheme.

A kind of pipe-line system of water heater, comprise water tank, water inlet pipe and outlet pipe, water inlet pipe connects water tank by first check-valves, relief tube partly is soaked in the upper and lower of water tank and the top of an end joining water box inner chamber, the other end passes from water tank, relief tube connects water inlet pipe by the release check-valves, and the temperature, pressure safety valve also is housed on the relief tube.

The utility model can also further be realized by following technical measures.

The pipe-line system of aforesaid water heater is equipped with mixed water valve on the outlet pipe, be equipped with on the cold water inlet of mixed water valve to mix Water Check Valve and connect water inlet pipe; Mixed water valve perhaps is housed on the outlet pipe, and the cold water inlet that mixes water valve connects first check-valves, and second check-valves is housed between first check-valves and the water tank.

Its pipeline of the pipe-line system of the water heater that the utility model provides is simple, in water tank, draw relief tube connection water inlet pipe, when the water tank internal pressure raises and is higher than intake pressure, thereby upper strata steam can enter the water inlet pipe automatically unloading along relief tube, release check-valves, can be with the water emptying in the water tank, safe and reliable; In stress-relief process, the high-temperature-hot-water on water tank upper strata or steam when the relief tube with the water at low temperature heat exchange of water tank lower floor, make steam condense liquefaction, temperature reduction, both prevented the direct discharging of steam, strengthened the heat exchange of water tank inside yet, raised the efficiency, the water temperature of backflow can be too not high yet; The temperature, pressure safety valve is installed on relief tube, can be prevented that high-temperature water is back to water inlet pipe from relief tube, protection water inlet system pipeline pipe fitting, when the pressure accident of whole pipe-line system raises, also can the automatically unloading protection.The utility model is installed on outlet pipe and is mixed water valve, can be safe, stable provide more temperature suitable hot water for the user.The utility model is safe and efficient, is applicable to various water heaters, is particularly suitable for being applied to the water feeding and draining device of cooking water heater.

Description of drawings

Fig. 1 is the pipeline schematic diagram of the pipe-line system of water heater;

Fig. 2 is the pipeline schematic diagram of the utility model embodiment 2;

Fig. 3 is the pipeline schematic diagram of the utility model embodiment 3.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail:

Embodiment 1, the pipe-line system of water heater as shown in Figure 1, comprises airtight water tank 1, there is thermal source at water tank 1 middle part, this example is a combustion chamber 8, and water inlet pipe 2 is by the bottom of first check-valves, 4 connection water tanks 1, and outlet pipe 3 connects the top of water tanks 1, the interior top of chamber of the water inlet end joining water box 1 of relief tube 5, pass by release check-valves 6 connection water inlet pipes 2 from the bottom of water tank 1, relief tube 5 parts are soaked in the upper and lower of water tank 1, on the relief tube 5 outside the water tank 1 temperature, pressure safety valve 9 are housed also.During use, open stop valve 7 earlier, cold water enters water tank from water inlet pipe 2 along first check-valves 4, and this moment, cold water can not flow through from release check-valves 6, can be along outlet pipe 3 from stop valve when water tank 1 is filled it up with 7 overflows, and closes stop valve 7.Combustion chamber 8 fuel combustion, heating water tank 1, the water on boiler 1 upper strata begins to heat up, because water conduction heat is slower, the upper strata of water tank, lower floor can produce the temperature difference, the water temperature on upper strata can be higher than the water temperature of lower floor, when sustained combustion a period of time, water temperature in the water tank 1 constantly raises, the volume of water increases, until produce steam at the top, when water tank 1 internal pressure was higher than intake pressure, release check-valves 6 will be realized automatically unloading, and this moment, first check-valves 4 cut out, the water at low temperature of water tank 1 bottom can not be extruded into water inlet pipe 2, the steam at water tank 1 top or high-temperature-hot-water can push in the relief tube 5 particularly its terminal cold water and enter water inlet pipe along release check-valves 6 and realize pressure balance, and the steam at top or high-temperature-hot-water enter relief tube 5 can carry out a large amount of heat exchange through the cryosphere of water tanks 1, thereby condenses liquefaction and cooling, so what discharge can not be steam and very boiling hot hot water, safety is energy-conservation again.Use hot water if desired, opening stop valve 7 can obtain, and cold water also can add to water tank 1 through first check-valves 4 from water inlet pipe 2 simultaneously.Simultaneously, the hot water in the relief tube 5 makes also that in the cryosphere heat exchange levels water temperature in the water tank 1 more tends to balance, thereby can provide more temperature suitable hot water, reaches safety, convenient, energy-efficient purpose.

Temperature, pressure safety valve 9 is housed on the relief tube 5, but the pipe-line system of duplicate protection water heater:

1, the pipeline pipe fitting of protection water inlet system.Long and water is seldom the time when burning time, can make that the water temperature that is back to water inlet pipe 2 constantly raises, when being higher than the set temperature value of temperature, pressure safety valve 9, temperature, pressure safety valve 9 will be opened automatically, outwards in line, prevent that high-temperature-hot-water from damaging the pipeline pipe fitting.

2, safety anti-explosive.In use, possible maloperation makes the cold water stop valve that is installed on the water inlet pipe 2 and the stop valve 7 on the outlet pipe 3 all be in closed condition, the temperature and pressure of water tank 1 and pipeline is constantly raise, when its force value is higher than the set temperature value of temperature, pressure safety valve 9, temperature, pressure safety valve 9 will be opened automatically, outwards release prevents the generation of accidents such as explosion, blast.

Embodiment 2, as shown in Figure 2, in order to provide more temperature suitable hot water in use, safe ready and farthest raising the efficiency, on the outlet pipe 3 of the pipe-line system of water heater, be equipped with and mix water valve 10, mixing to be equipped with on the cold water inlet 11 of water valve 10 and mix Water Check Valve 12 and connect water inlet pipe 2, is to regulate the warm water of temperature but not high-temperature-hot-water from what mix that water valve 10 flows out.Mix Water Check Valve 12 can prevent high-temperature-hot-water from water tank 1 along outlet pipe 3, mix water valve 10 and be back to water inlet pipe 2, the pipeline pipe fitting of protection water inlet system.The relief tube 5 that is soaked in the water tank 1 adopts the spiral tube structure, relief tube 5 spirals from top to bottom along the periphery of combustion chamber 8, increased heat transfer pipe, increased that pipeline conducts heat up and down and stress-relief process in the heat exchange effect, make the temperature in the water tank more balanced, the water temperature that release is back to water inlet pipe is lower, and whole structure is better.

Embodiment 3, as shown in Figure 3, are with the difference of embodiment 2 that the cold water inlet 11 that mixes water valve 10 directly connects first check-valves 4, thereby saved mixed Water Check Valve, simplified system pipeline, reached same effect.In order to prevent when mixing water, what enter cold water inlet 11 is the hot water that comes out from water tank 1 lower floor rather than the cold water of water inlet pipe 2, so the pipeline between first check-valves 4 and water tank 1 is equipped with second check-valves 13, stop water tank 1 lower floor's hot water to flow to cold water inlet 11.

Claims (4)

1. the pipe-line system of a water heater, comprise water tank (1), water inlet pipe (2) and outlet pipe (3), water inlet pipe (2) connects water tank (1) by first check-valves (4), relief tube (5) part is soaked in the upper and lower of water tank (1) and the top of end joining water box (a 1) inner chamber, the other end passes from water tank (1), relief tube (5) connects water inlet pipe (2) by release check-valves (6), it is characterized in that also being equipped with on the relief tube (5) temperature, pressure safety valve (9).

2. the pipe-line system of water heater according to claim 1 is characterized in that being equipped with on the outlet pipe (3) mixed water valve (10), mixed Water Check Valve (12) is housed and connects water inlet pipe (2) on the cold water inlet (11) of mixed water valve (10).

3. the pipe-line system of water heater according to claim 1 is characterized in that being equipped with on the outlet pipe (3) mixed water valve (10), and the cold water inlet (11) that mixes water valve (10) connects first check-valves (4).

4. the pipe-line system of water heater according to claim 3 is characterized in that between first check-valves (4) and the water tank (1) second check-valves (13) being housed.

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