CN201680426U

CN201680426U - Water supply and drainage device of water heater

Info

Publication number: CN201680426U
Application number: CN2010201940134U
Authority: CN
Inventors: 伍斌强; 伍奕
Original assignee: Xunda Technology Group Co Ltd
Current assignee: Xunda Technology Group Co Ltd
Priority date: 2010-05-18
Filing date: 2010-05-18
Publication date: 2010-12-22
Anticipated expiration: 2020-05-18

Abstract

The utility model relates to a water supply and drainage device of a water heater, relating to a household furnace using solid fuel. The water supply and drainage device 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 water inlet check valve, the water outlet pipe part is immersed in the upper layer and the lower layer of the water tank, one end of the water outlet pipe is communicated with the top of the inner cavity of the water tank, the other end of the water outlet pipe penetrates out from the lower part or the upper part of the water tank, and a pressure relief check valve is further arranged between the water outlet pipe and the water inlet pipe. The utility model has simple pipeline, safety and high efficiency, can prevent steam from straightly discharging, keep the pressure of the water tank, provide more hot water with appropriate temperature, and is very suitable to be applied to a cooking water heater.

Description

The water feeding and draining device 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, because of the heat source near water tank upper, make that the Lower Half of water tank is a cryosphere, the first half is the elevated temperature heat water layer, in continuous heating process, water tank upper also can form vapor film, its water feeding and draining device normally cold water inlet is the bottom that is connected water tank, the hot water outlet pipe directly is connected the top of water tank, there is following shortcoming in the use: when the water tank internal pressure constantly raises, its depressurized system is just got into cold water inlet with the water at low temperature of lower floor, still has a large amount of even more high-temperature steam in the water tank, has potential safety hazard; What the hot water outlet pipe was connected directly that the top of water tank causes its discharge is high-temperature-hot-water, boiling water even steam, the one, and people need not use the hot water of high temperature like this, secondly scald easily, moreover also are a kind of wastes of the energy.

Summary of the invention

It is simple, easy to use that the purpose of this utility model provides a kind of pipeline, can prevent that steam is in line, keeps tank pressure, continue to provide the hot water and the water feeding and draining device of water heater safely and efficiently.

The utility model is to realize by following technical scheme.

A kind of water feeding and draining device of water heater, comprise water tank, water inlet pipe and outlet pipe, water inlet pipe connects water tank by the water inlet check-valves, its outlet pipe 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 the bottom or the top of water tank, and the release check-valves also is housed between outlet pipe and the water inlet pipe; The aforementioned outlet pipe that is dipped in water tank inside is spiral structure and/or bellows.

The water feeding and draining device of the water heater that the utility model provides compared with prior art has the following advantages:

1. the top of outlet pipe one end joining water box inner chamber, other has the release check-valves that outlet pipe and water inlet pipe are communicated with, 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 outlet pipe, release check-valves, can be with the water emptying in the water tank, safe and reliable.

2. outlet pipe is immersed in the upper and lower of water tank, and water pipe self conducts heat, and strengthens the heat exchange of the inner levels of water tank, reduces the temperature difference of levels water temperature; In release with discharge condense liquefaction, hot water temperature of steam is reduced, steam directly can not discharged, the hot water temperature of discharge suits and also can be not too high; The outlet pipe that is dipped in water tank inside adopts spiral structure or bellows, and suitable growth heat exchange pipeline or increase heat exchange area can be strengthened heat exchange, and effect is better.

Since in stress-relief process be with outlet pipe ponding in advance just water at low temperature extrude along the release check-valves, the hot water of being discharged by outlet pipe also is the hot water after the heat exchange of water tank cryosphere, its heat is all absorbed a part by the water tank cryosphere, so its heat scatters and disappears few, effectively utilize heat many, reach energy-efficient purpose.

4. pipeline is simple, just outlet pipe partly is dipped in water tank, increases a check-valves between outlet pipe and water inlet pipe.

The utility model pipeline is simple, safe and efficient, can provide more temperature suitable hot water, is suitable for doing the water feeding and draining device of various water heaters, is particularly suitable for the water feeding and draining device of cooking water heater.

Description of drawings

Fig. 1 is the pipeline schematic diagram of the water feeding and draining device 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;

Fig. 4 is the pipeline schematic diagram of the utility model embodiment 4.

The specific embodiment

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

Embodiment 1, the water feeding and draining device of water heater, as shown in Figure 1, comprise airtight water tank 1, there is thermal source at water tank 1 middle part, this example is got combustion chamber 8, water inlet pipe 2 connects the bottom of water tanks 1 by water inlet check-valves 3, and the interior top of chamber of the water inlet end joining water box 1 of outlet pipe 4 passes from the bottom of water tank 1 and to be connected to stop valve 6, outlet pipe 4 parts are soaked in the upper and lower of water tank, are connected with release check-valves 5 between outlet pipe 4 and the water inlet pipe 2.During use, open stop valve 6 earlier, cold water enters water tank from water inlet pipe 2 along water inlet check-valves 3, and this moment, cold water can not flow through from release check-valves 5, can be along outlet pipe 4 from stop valve when water tank 1 is filled it up with 6 overflows, and closes stop valve 6.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, and the water temperature on upper strata can be higher than the water temperature of lower floor, at this moment, the outlet pipe 4 that is soaked in the metal material in the water tank 1 can add the heat-flash conduction, and the levels water temperature is more tended to balance.When sustained combustion a period of time, water temperature in the water tank 1 constantly raises, the volume of water increases, even at top generation steam, when water tank 1 internal pressure is higher than intake pressure, release check-valves 5 will be realized automatically unloading, the check-valves 3 of intaking this moment cuts out, the steam at top or high-temperature-hot-water can squeeze out in the water pipe 4 particularly its terminal cold water and enter water inlet pipe along release check-valves 5 and realize pressure balance, the cryosphere that the steam at top or high-temperature-hot-water enter outlet pipe 4 process water tanks 1 also can carry out a large amount of heat exchange, thereby condenses liquefaction and cooling.Use hot water if desired, opening stop valve 6 can obtain, and cold water also can add to water tank 1 from water inlet pipe 2 simultaneously.Because hot water all need be discharged through the cryosphere of water tank 1 again, can produce a large amount of heat exchange at cryosphere, so discharge can not be steam and very boiling hot hot water, safety is energy-conservation again.Simultaneously, the hot water in the outlet pipe 4 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.

In order to prevent in heating process, because maloperation makes the cold water stop valve that is installed on the water inlet pipe 2 and the stop valve 6 on the outlet pipe 4 all be in closed condition, make continuous rising of temperature and pressure of water tank 1 and pipeline cause the generation of accidents such as explosion, blast, on water tank 1 or outlet pipe 4 safety valve 7 is installed, present embodiment is installed on the water tank 1.

Embodiment 2, as shown in Figure 2, be with the difference of embodiment 1, the outlet pipe 4 that is soaked in the water tank 1 adopts the spiral tube structure, and outlet pipe 4 spirals from top to bottom along the periphery of combustion chamber 8, has increased heat transfer pipe, increased the heat exchange effect in the processes such as pipeline heat transfer and release up and down, discharging hot water, make the temperature in the water tank more balanced, the hot water temperature of discharging is preferably, and whole structure is better.

Embodiment 3, as shown in Figure 3, be with the difference of embodiment 1, the outlet pipe 4 that is soaked in the water tank 1 adopts bellows structure, increased heat exchange area, increased the heat exchange effect in the processes such as pipeline heat transfer and release up and down, discharging hot water, made the temperature in the water tank more balanced, the hot water temperature of discharging is preferably; To intake check-valves 3 and release check-valves 5 all is contained in the water tank, makes the exterior line of water tank 1 simpler, more attractive in appearance.

Embodiment 4, as shown in Figure 4, the outlet pipe 4 that is soaked in the water tank 1 adopts coil arrangement, outlet pipe 4 is guided to the bottom earlier and is spiraled from bottom to up along the periphery of combustion chamber 8 then and to pass from the top of water tank 1 from the top of water tank 1, increased heat transfer pipe, has increased pipeline and has conducted heat up and down and discharge heat exchange effect in the process such as hot water, make the temperature in the water tank more balanced, the hot water temperature of discharging is preferably, but can squeeze out a small amount of hot water in automatically unloading, and the sub-fraction heat scatters and disappears; Safety valve 7 is installed on water tank 1 outlet pipe 4 outward.

Claims

1. the water feeding and draining device of a water heater, comprise water tank (1), water inlet pipe (2) and outlet pipe (4), water inlet pipe (2) connects water tank (1) by water inlet check-valves (3), it is characterized in that outlet pipe (4) 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), between outlet pipe (4) and the water inlet pipe (2) release check-valves (5) is housed also.

2. the water feeding and draining device of water heater according to claim 1 is characterized in that described outlet pipe (4) passes from the bottom of water tank (1).

3. the water feeding and draining device of water heater according to claim 1 is characterized in that described outlet pipe (4) passes from the top of water tank (1).

4. according to the water feeding and draining device of claim 1,2 or 3 described water heaters, it is characterized in that being dipped in the inner outlet pipe (4) of water tank (1) is spiral structure and/or bellows.