CN209165581U - A kind of dual-purpose furnace system - Google Patents

Abstract

The utility model relates to a kind of dual-purpose furnace systems, including heating pipeline, domestic water pipeline and expansion tank, the expansion tank has heating water cavity, domestic water chamber and air cavity, the heating water cavity is connected by the first pipeline with heating pipeline, the domestic water chamber is connected by the second pipeline with domestic water pipeline, the third pipeline for draining is also connected on the expansion tank, three pipeline respectively with heating water cavity, domestic water chamber is connected, first switch valve is provided on first pipeline, second switch valve is provided on second pipeline, third switch valve is provided on third pipeline.Dual-purpose furnace system and control method in the utility model be effectively ensured on the basis of water stability, it is ensured that expansion tank using safe.

Description

A kind of dual-purpose furnace system

Technical field

The utility model relates to a kind of dual-purpose furnace systems.

Background technique

In high-rise house, often there is the situation unstable with water pressure, hydraulic pressure is unstable directly to cause water flow Fluctuation.So when using gas heater, since the temperature persistance of gas heater is limited, can because the fluctuation of water flow and There is the sometimes hot and sometimes cold phenomenon of water temperature, seriously affects the comfort that hot water uses.In the prior art by being arranged in water heater Expansion tank alleviates the fluctuation of water flow, the principle of expansion tank buffered water flowed fluctuation are as follows: swollen when descaling line pressure is excessive Swollen water tank can effectively absorb water flow, shunt to the water for entering water heater, the water yield of water heater is in certain time It is inside able to maintain and is basically unchanged.When descaling line pressure is too small, expansion tank is then in hull-borne, thus and enter water heater Water form interflow so that the water yield of water heater can be also basically unchanged within a certain period of time.But use expansion tank meeting Cause the volume of water heater excessive.

Application publication number is the Chinese invention patent application " one of CN108061375A (application No. is 201710624991.4) Kind of dual-purpose stove work system ", disclosed in dual-purpose stove work system, the expansion tank setting of use there are three cavity, In cavity connection balance gas source, other two cavity is separately connected domestic water line, heating pipe.The dual-purpose type it is swollen Swollen water tank meets heating with the smallest volume and domestic water is dual-purpose.In use, the hydraulic pressure of domestic water is general Range is 0-0.3bar, but maximum pressure is likely to be breached 15bar, and excessive hydraulic pressure also will cause to damage to expansion tank, heating The pressure limit of water is usually 0.5bar-3.5bar, will be damaged to heating loop greater than 3.5bar or more.So how to pacify Entirely using dual-purpose expansion tank is an important problem.

Utility model content

Technical problem to be solved in the utility model be for the above-mentioned prior art provide one kind can make full use of it is swollen The harmomegathus amount of swollen water tank, while can guarantee that pressure is in the dual-purpose stove system in safe range always in expansion tank use process System.

Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of dual-purpose furnace system, feature exist In: including heating pipeline, domestic water pipeline and expansion tank, the expansion tank has heating water cavity, domestic water chamber And air cavity, the heating water cavity are connected by the first pipeline with heating pipeline, the domestic water chamber passes through the second pipeline It is connected with domestic water pipeline, the third pipeline for draining, the three pipelines difference is also connected on the expansion tank It is connected with heating water cavity, domestic water chamber, first switch valve is provided on first pipeline, is provided on the second pipeline Two switch valves are provided with third switch valve on third pipeline.

Preferably, on first pipeline relative to first switch valve far from being provided with the first pressure on the position of expansion tank Force snesor is provided with second pressure sensing on second pipeline relative to second switch valve on the position of expansion tank Device.

Judge whether to enable domestic water for convenience, the water service pipe road is provided with water sensor.

In order to facilitate the draining of expansion tank, the heating pipe road is connected with discharge pipe line, the third pipeline and row Water lines are connected.

Compared with the prior art, the advantages of the utility model are: the control method of the dual-purpose stove in the utility model, In the state of enabling domestic water, the pressure in domestic water pipeline is detected, and by the safe pressure of the pressure and expansion tank It is compared, and then judges whether to need to carry out the interior draining of expansion tank, and then lay down the pressure in expansion tank, guarantee Expansion tank using safe.Dual-purpose furnace system in the utility model is connected to third pipeline on expansion tank to be used for Draining uses, while being respectively provided with switch valve on the first pipeline, the second pipeline, third pipeline, by each switch valve On-off realizes the protection to expansion tank and pipeline in the biggish situation of pressure, can so guarantee the peace of expansion tank It entirely uses, solves heating pipeline in use process, domestic water pipeline internal pressure power difference uses expansion tank and pipeline The problem of safety impacts.

Detailed description of the invention

Fig. 1 is the schematic diagram of dual-purpose furnace system in the utility model embodiment.

Fig. 2 is the side view of expansion tank in the utility model embodiment.

Fig. 3 is the flow chart of the control method of dual-purpose stove in the utility model embodiment.

Specific embodiment

The utility model is described in further detail below in conjunction with figure embodiment.

As depicted in figs. 1 and 2, the dual-purpose furnace system in the present embodiment, including combustion heat-exchange device 6, heat exchanger 7, combustion gas Pipeline 8, heating pipeline 1, domestic water pipeline 2, discharge pipe line 5 and expansion tank 3.

Wherein combustion heat-exchange device 6 includes heat exchange structure, combustion chamber etc., and the import of fuel gas pipeline 8 is connected with fuel gas source, Burn the change trains combustion chamber of device of outlet and burning of pipeline is connected.

Heating pipeline 1 is a circulation line, and a part of the heating pipeline 1 passes through the heat exchange structure of combustion heat-exchange device 6, And then realize heat exchange, the water in heating pipeline 1 is heated.

The import of domestic water pipeline 2 is connected with cold water source, domestic water pipeline 2 by heat exchanger 7 heat exchange after from The outlet of domestic water pipeline 2 exports hot water.The both ends of heat exchanger 7 then pass through the water exit end that triple valve is connected to heating pipeline 1 Between inlet segment.

Expansion tank 3 in the present embodiment includes heating water cavity 31, domestic water chamber 32 and the air cavity 33 being arranged successively, Wherein the connection of air cavity 33 balance originates from, using nitrogen as Balance Air in the present embodiment.Heating water cavity 31 by the first pipeline 311 with Heating pipeline 1 is connected, i.e., the water in heating water route is entered in heating water cavity 31 by the first pipeline 311, also can be by adopting Warm water cavity 31 is flowed into heating water route, and such heating water cavity 31, which is then provided according to the hydraulic pressure in heating water route for heating water route, to rise Contracting amount guarantees the stabilization of water supply in heating water route.Domestic water chamber 32 passes through the second pipeline 321 and 2 phase of domestic water pipeline Connection, same to aforementioned principles, domestic water chamber 32 is made a living according to the hydraulic pressure in domestic water pipeline 2 applies flexibly the offer harmomegathus of water lines 2 Amount guarantees the stabilization of water supply in domestic water pipeline 2.The third pipeline 34 for draining is also connected on expansion tank 3, the One end of three pipelines 34 is connected with heating water cavity 31, domestic water chamber 32 respectively, the other end of third pipeline 34 then with draining Pipeline 5 is connected.First switch valve 312 is provided on first pipeline 311 to control heating water in heating water route and expansion tank 3 The on-off of chamber 31, it is raw in domestic water pipeline 2 and expansion tank 3 to control to be provided with second switch valve 322 on the second pipeline 321 The on-off of water cavity 32 is applied flexibly, third switch valve 341 is provided on third pipeline 34 to control the drainage works of expansion tank 3.

In addition, relative to being provided with first on position of the first switch valve 312 far from expansion tank 3 on the first pipeline 311 Pressure sensor 313, the water pressure data which can be exported with real-time detection heating pipeline 1, the second pipeline Second pressure sensor 323 is provided on the position of expansion tank 3 relative to second switch valve 322 on 321, this second Pressure sensor 323 can effectively detect the water pressure data at 32 connector of domestic water chamber.Water is provided on domestic water pipeline 2 Quantity sensor 4, the water sensor 4 can effectively detect whether the case where opening using domestic water.

First switch valve 312, second switch valve 322, third switch valve 341, water sensor 4, first pressure sensor 313, second pressure sensor 323 is attached with the control circuit board in dual-purpose stove, under the control of control circuit board into Row work.

In use, the general range of the hydraulic pressure of domestic water is 0-0.3bar, but maximum pressure is likely to be breached 15bar, excessive hydraulic pressure also will cause to damage to expansion tank 3, also can be to heating if do not protected to heating pipeline 1 Pipeline 1 damages.The pressure limit of heating water is usually 0.5bar-3.5bar, and being greater than 3.5bar or more will be to heating pipeline 1 damages.

As shown in figure 3, the control method of the dual-purpose furnace system, comprising the following steps:

S1, real-time domestic water state is detected using water sensor 4；If water sensor 4 detects water flow Signal then judges that domestic water is opened and uses, if water flow signal is not detected in water sensor 4, judges domestic water Use is not opened；

S2, when water sensor 4 detects water flow signal, judge at this time domestic water open, then using first pressure Force snesor 313 detects the pressure P1 in domestic water pipeline 2；

S3, the pressure P1 in domestic water pipeline 2 is compared with the safe pressure P01 of expansion tank 3, while will given birth to The pressure P1 applied flexibly in water lines 2 is compared with the safe pressure P02 of heating pipeline 1, wherein P02 < P01；In the present embodiment 12bar can be set by P01, set 3.5bar for P02.

If S4, P1 < P02, i.e. hydraulic pressure in domestic water pipeline 2 both within the scope of the safe pressure of heating pipeline 1, Also within the scope of the safe pressure of expansion tank 3, then control conducting first switch valve 312, second switch valve 322 is controlled, is closed Third switch valve 341, so that expansion tank 3 is connected to domestic water pipeline 2 and heating pipeline 1 case respectively, it is swollen in the course of work Swollen water tank 3 normally plays its harmomegathus function, and then supports the family with the water flow in water lines 2, stable in heating pipeline 1；

If P02≤P1≤P01, i.e., the hydraulic pressure in domestic water pipeline 2 has exceeded the safe pressure P02 of heating pipeline 1 Range, but still within the scope of the safe pressure of expansion tank 3, the first switch valve 312 of control conducting at this time is closed second and is opened Valve 322 is closed, third switch valve 341 is closed, and then be connected to expansion tank 3 and domestic water pipeline 2, simultaneously switches off expansion tank 3 With being connected to for heating pipeline 1, excessive pressure, which will not then remake, in such expansion tank 3 is used on heating pipeline 1, has cut off life Influence of the hydraulic pressure to heating pipeline 1 in water lines 2 is applied flexibly, while domestic water is stablized by the swell and shrink action of expansion tank 3 Water flow in pipeline 2；

If P1 > P01, i.e. the model that had both had exceeded the safe pressure P02 of heating pipeline 1 of hydraulic pressure in domestic water pipeline 2 It encloses, also has exceeded the safe pressure range of expansion tank 3, excessively high pressure can threaten the safe handling of expansion tank 3, at this time Emphasis is the safeguard protection to expansion tank 3, and the warm stream of expansion tank 3 acts on being on the hazard using safe for expansion tank 3 When can temporarily abandon, then control at this time close first switch valve 312, close second switch valve 322, open simultaneously third switch Valve 341, so that disconnecting the connection of expansion tank 3 and domestic water pipeline 2, disconnection expansion tank 3 is connected to heating pipeline 1, It controls expansion tank 3 simultaneously to be drained, the pressure in effective removal expansion tank 3 first ensures that the safety of expansion tank 3；

If S5, domestic water are not switched on, i.e., when water flow signal is not detected in water sensor 4, then close second Switch valve 322, control expansion tank 3 are in an off state with domestic water pipeline 2, control expansion tank 3 and 1 case of heating pipeline Connection, so can effectively avoid influence of the hydraulic pressure to expansion tank 3 and heating pipeline 1 in domestic water pipeline 2, simultaneously It is played using expansion tank 3 and the warm stream of heating pipeline 1 is acted on,

Simultaneously using second pressure sensor 323 detect the second pipeline 321 in hydraulic pressure, i.e., detection expansion tank 3 in The intracorporal pressure P2 of the chamber that heating pipeline 1 is connected；

If S5, P2 >=P02, i.e., the pressure of heating water cavity 31 is more than the safe pressure of heating pipeline 1 in expansion tank 3 When, then conducting third switch valve 341 is controlled, and then drain to expansion tank 3, in this way, the high pressure in heating water cavity 31 is made Under, the water in domestic water chamber 32 can be squeezed into third pipeline 34, and then be discharged, rising in such expansion tank 3 The water balance that contracting amount is capable of all heating pipelines 1 carry out using, increase the expansion to the corresponding harmomegathus amount of heating pipeline 1, So that the water stablizing effect of heating pipeline 1 is more preferable.

The control method of dual-purpose stove in the utility model, on the basis for the water stability being effectively ensured in use process On, it is ensured that expansion tank 3 using safe, moreover it is possible to guarantee heating water route using safe.

Claims (4)

1. a kind of dual-purpose furnace system, it is characterised in that: including heating pipeline (1), domestic water pipeline (2) and expansion tank (3), the expansion tank (3) has heating water cavity (31), domestic water chamber (32) and air cavity (33), the heating water cavity (31) it is connected by the first pipeline (311) with heating pipeline (1), the domestic water chamber (32) passes through the second pipeline (321) It is connected with domestic water pipeline (2), the third pipeline (34) for draining is also connected on the expansion tank (3), it is described Three pipelines are connected with heating water cavity (31), domestic water chamber (32) respectively, are provided with first on first pipeline (311) and open It closes valve (312), is provided with second switch valve (322) on the second pipeline (321), third pipeline is provided with third switch valve on (34) (341)。

2. dual-purpose furnace system according to claim 1, it is characterised in that: relative to first on first pipeline (311) It is provided with first pressure sensor (313) on the position of switch valve (312) separate expansion tank (3), second pipeline (321) On relative to second switch valve (322) close to expansion tank (3) position on be provided with second pressure sensor (323).

3. dual-purpose furnace system according to claim 1, it is characterised in that: be provided with water on the domestic water pipeline (2) Quantity sensor (4).

4. according to claim 1 to dual-purpose furnace system described in 3 any claims, it is characterised in that: the heating pipeline (1) On be connected with discharge pipe line (5), the third pipeline (34) is connected with discharge pipe line (5).