CN107449134A - Central hot water gas heater and its application system and control method - Google Patents

Central hot water gas heater and its application system and control method Download PDF

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Publication number
CN107449134A
CN107449134A CN201710881437.4A CN201710881437A CN107449134A CN 107449134 A CN107449134 A CN 107449134A CN 201710881437 A CN201710881437 A CN 201710881437A CN 107449134 A CN107449134 A CN 107449134A
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CN
China
Prior art keywords
water
flow
hot water
heater
real
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CN201710881437.4A
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Chinese (zh)
Inventor
艾穗江
赵立新
刘兵
陈国�
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广东万家乐燃气具有限公司
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Application filed by 广东万家乐燃气具有限公司 filed Critical 广东万家乐燃气具有限公司
Priority to CN201710881437.4A priority Critical patent/CN107449134A/en
Publication of CN107449134A publication Critical patent/CN107449134A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H1/00Water heaters having heat generating means, e.g. boiler, flow- heater, water-storage heater
    • F24H1/10Continuous-flow heaters, i.e. in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12Continuous-flow heaters, i.e. in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14Continuous-flow heaters, i.e. in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/145Continuous-flow heaters, i.e. in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using fluid fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H9/00Details
    • F24H9/18Arrangement or mounting of grates, burners, or heating elements
    • F24H9/1809Arrangement or mounting of grates, burners, or heating elements for water heaters
    • F24H9/1836Arrangement or mounting of grates, burners, or heating elements for water heaters fluid combustible heating means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H9/00Details
    • F24H9/20Arrangement or mounting of control or safety devices or methods
    • F24H9/2007Arrangement or mounting of control or safety devices or methods for water heaters
    • F24H9/2035Arrangement or mounting of control or safety devices or methods for water heaters for heaters using fluid combustibles

Abstract

The invention provides a kind of central hot water gas heater and its application system, it is related to gas heater field.The central hot water gas heater includes water heater body, cold water inlet pipe, hot water out pipe, heater, water flow sensor, booster pump and controller.Cold water inlet pipe, heater, hot water out pipe are used to form circulation line with hot-water line and cold water pipe.Water flow sensor is used for the real-time traffic for detecting cold water inlet pipe reclaimed water;Controller is used for according to the startup flow of real-time traffic and booster pump control supercharging pump startup, and controller is additionally operable to close according to the circular flow of real-time traffic and circulation line control booster pump.Central hot water gas heater provided by the invention and its application system can be utilized with the difference of hot water flow before and after water spot open and close to control the start and stop of booster pump; the flame-out shutdown of water heater after water is closed in realization; Automatic-boosting hot water flow is realized, lifts user's bathing experience.

Description

Central hot water gas heater and its application system and control method

Technical field

The present invention relates to gas heater field, in particular to a kind of central hot water gas heater and its application System and control method.

Background technology

In without water return pipeline central hot-water system, booster pump has two kinds of installation sites, one is installed in gate of registering one's residence Near, it can so increase the flow of hot water or cold water;The second is installed in water heater entering at cold water, it is served only for increasing hot water flow. Second way installation is simple, easily operated, and application is more universal.

Without influence, second can not use central hot water function for use of the first mounting means on central hot water.This It is due to that unidirectional valve opening pressure is relatively low, can turns on check valve after being pressurized pump startup.When closing water spot, hot water is in hot water Circulation loop can be still formed between pipe, check valve, cold water pipe, water heater, water heater is not shut down for a long time, and hot water is added always Heat, cause the serious consequences such as high temperature scald, water heater damage.

To sum up, existing no water return pipeline central hot-water system there is no relevant art can independent pressurized hot water flow.

The content of the invention

An object of the present invention is to provide a kind of central hot water gas heater, and it can use water spot open and close The difference of front and rear hot water flow realizes the flame-out shutdown for closing water heater after water, realizes Automatic-boosting to control the start and stop of booster pump Hot water flow, lift user's bathing experience.

Another object of the present invention is to provide a kind of application system of central hot water gas heater, it can utilize and use The difference of hot water flow to be to control the start and stop of booster pump before and after water spot open and close, realizes the flame-out shutdown for closing water heater after water, realizes Automatic-boosting hot water flow, lift user's bathing experience.

A further object of the present invention is to provide a kind of control method of central hot water gas heater, and it can utilize and use The difference of hot water flow to be to control the start and stop of booster pump before and after water spot open and close, realizes the flame-out shutdown for closing water heater after water, realizes Automatic-boosting hot water flow, lift user's bathing experience.

What embodiments of the invention were realized in:

A kind of central hot water gas heater, applied to the application system of central hot water gas heater, the center heat The application system of water gas heater include water inlet manifold, hot-water line, cold water pipe and it is multiple use water spot, the hot-water line with it is described Cold water pipe connects, multiple described to be parallel to the hot-water line and the cold water pipe with water spot.The central hot water gas heater Including water heater body, cold water inlet pipe, hot water out pipe, heater, water flow sensor, booster pump and controller.The heating Device is arranged in the water heater body, one end of the cold water inlet pipe stretch into the water heater body and with the heater Connection, the other end are used to be connected with the water inlet manifold and the cold water pipe respectively, described in one end of the hot water out pipe is stretched into Be connected in water heater body and with the heater, the other end is used to be connected with the hot-water line, the cold water inlet pipe, described adds Hot device, the hot water out pipe are used to form circulation line with the hot-water line and the cold water pipe.The water flow sensor and The booster pump may be contained within the cold water inlet pipe, and is connected with the controller, and the water flow sensor is used to detect The real-time traffic of the cold water inlet pipe reclaimed water.The controller is used for the startup stream according to the real-time traffic and the booster pump Amount controls the supercharging pump startup, wherein, the flow that starts is the hot water flow after the booster pump is opened;The controller It is additionally operable to control the booster pump to close according to the circular flow of the real-time traffic and the circulation line, wherein, it is described to follow Circulation is the normal flow of the circulation line.

A kind of application system of central hot water gas heater, the application system of the central hot water gas heater include Water inlet manifold, hot-water line, cold water pipe, multiple water spot and central hot water gas heaters, the hot-water line and the cold water pipe Connection, it is multiple described to be parallel to the hot-water line and the cold water pipe with water spot.The central hot water gas heater includes heat Hydrophone body, cold water inlet pipe, hot water out pipe, heater, water flow sensor, booster pump and controller.The heater is set In in the water heater body, one end of the cold water inlet pipe is stretched into the water heater body and is connected with the heater, The other end is connected with the water inlet manifold and the cold water pipe respectively, and the water heater body is stretched into one end of the hot water out pipe Interior and be connected with the heater, the other end is connected with the hot-water line, the cold water inlet pipe, the heater, the hot water Outlet pipe forms circulation line with the hot-water line and the cold water pipe.The water flow sensor and the booster pump may be contained within The cold water inlet pipe, and be connected with the controller, the water flow sensor is used to detect the cold water inlet pipe reclaimed water Real-time traffic.The controller is used to control the booster pump to open according to the startup flow of the real-time traffic and the booster pump It is dynamic, wherein, the flow that starts is the hot water flow after the booster pump is opened;The controller is additionally operable to according to described real-time The circular flow of flow and the circulation line controls the booster pump to close, wherein, the circular flow is the circulation pipe The normal flow on road.

A kind of control method of central hot water gas heater, for controlling central hot water gas heater, the center Hot water gas heater is applied to the application system of central hot water gas heater, the application of the central hot water gas heater System include water inlet manifold, hot-water line, cold water pipe and it is multiple use water spot, the hot-water line is connected with the cold water pipe, Duo Gesuo State and be parallel to the hot-water line and the cold water pipe with water spot.The central hot water gas heater includes water heater body, cold Water inlet pipe, hot water out pipe, heater, water flow sensor, booster pump and controller.The heater is arranged at the water heater In body, one end of the cold water inlet pipe is stretched into the water heater body and is connected with the heater, and the other end is used to divide Be not connected with the water inlet manifold and the cold water pipe, one end of the hot water out pipe stretch into the water heater body and with institute Heater connection is stated, the other end is used to be connected with the hot-water line, the cold water inlet pipe, the heater, the hot water out pipe For forming circulation line with the hot-water line and the cold water pipe.The water flow sensor and the booster pump may be contained within The cold water inlet pipe, and be connected with the controller, the water flow sensor is used to detect the cold water inlet pipe reclaimed water Real-time traffic.The controller is used to control the booster pump to open according to the startup flow of the real-time traffic and the booster pump It is dynamic, wherein, the flow that starts is the hot water flow after the booster pump is opened;The controller is additionally operable to according to described real-time The circular flow of flow and the circulation line controls the booster pump to close, wherein, the circular flow is the circulation pipe The normal flow on road.

The control method includes:The booster pump is controlled according to the startup flow of the real-time traffic and the booster pump Start, wherein, the flow that starts is the hot water flow after the booster pump is opened.According to the real-time traffic and the circulation The circular flow of pipeline controls the booster pump to close, wherein, the circular flow is the normal flow of the circulation line.

Central hot water gas heater provided in an embodiment of the present invention and its beneficial effect of application system and control method It is:

By controller, according to the startup flow of real-time traffic and booster pump control supercharging pump startup, also, according to real-time The circular flow of flow and circulation line control booster pump is closed, so as to utilize with hot water flow before and after water spot open and close Difference realizes the flame-out shutdown for closing water heater after water, realizes Automatic-boosting hot water flow, improve to control the start and stop of booster pump User's bathing experience.

Brief description of the drawings

In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this A little accompanying drawings obtain other related accompanying drawings.

Fig. 1 is the structural representation of the application system for the central hot water gas heater that first embodiment of the invention provides;

Fig. 2 be first embodiment of the invention provide central hot water gas heater water flow sensor and booster pump with The structured flowchart of controller;

Fig. 3 is the FB(flow block) of the control method for the central hot water gas heater that present pre-ferred embodiments provide;

Fig. 4 is the FB(flow block) of the control method for the central hot water gas heater that second embodiment of the invention provides.

Icon:The application system of 10- central hot water gas heaters;101- water inlet manifolds;The total water intaking valves of 102-;103- heat Water pipe;104- cold water pipes;105- check valves;106- water spots;107- hot water connecting tubes;108- cold water connecting tubes;200- centers Hot water gas heater;201- water heater bodies;202- cold water inlet pipes;203- cold valves;204- hot water out pipe;205- hot water Valve;206- heaters;207- water flow sensors;208- booster pumps;209- controllers.

Embodiment

To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is Part of the embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings The component of example can be configured to arrange and design with a variety of.

Therefore, below the detailed description of the embodiments of the invention to providing in the accompanying drawings be not intended to limit it is claimed The scope of the present invention, but be merely representative of the present invention selected embodiment.It is common based on the embodiment in the present invention, this area The every other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the model that the present invention protects Enclose.

It should be noted that:Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.

In the description of the invention, it is to be understood that the orientation or position of the instruction such as term " on ", " under ", " interior ", " outer " Put relation be based on orientation shown in the drawings or position relationship, or the invention product using when the orientation or position usually put Put relation, or the orientation that usually understands of those skilled in the art or position relationship, be for only for ease of the description present invention and Simplify description, rather than the equipment or element of instruction or hint meaning there must be specific orientation, with specific azimuth configuration And operation, therefore be not considered as limiting the invention.

In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that instruction or hint Relative importance.

In the description of the invention, it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ", " installation ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly be connected Connect;Can be mechanical connection or electrical connection;Can be joined directly together, can also be indirectly connected by intermediary, can To be the connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition Concrete meaning in the present invention.

First embodiment

Referring to Fig. 1, present embodiments providing a kind of central hot water gas heater 200, it fires applied to central hot water The application system 10 of gas water heater, the application system 10 of the central hot water gas heater include water inlet manifold 101, total water intaking valve 102nd, hot-water line 103, cold water pipe 104, check valve 105, it is multiple with water spot 106, hot water connecting tube 107, cold water connecting tube 108 and Central hot water gas heater 200.

Wherein, water inlet manifold 101 is connected with central hot water gas heater 200, for central hot water gas heater 200 water inlets.Total water intaking valve 102 is arranged on water inlet manifold 101, for controlling water inlet manifold 101 to intake or not intaking.Hot water One end of pipe 103 is connected with central hot water gas heater 200, and the other end is connected by check valve 105 with cold water pipe 104, single It is used to make the water in hot-water line 103 unidirectionally flow into cold water pipe 104 to valve 105, and reversely then ends.Cold water pipe 104 is remote One end of check valve 105 is connected with central hot water gas heater 200, for water to be back into central hot water gas heater 200。

It is multiple to be parallel to hot-water line 103 and cold water pipe 104 with water spot 106.It is it should be appreciated that each equal with water spot 106 It is provided with a hot water connecting tube 107 and a cold water connecting tube 108.Wherein, one end of hot water connecting tube 107 is with using water spot 106 connections, the other end are connected with hot-water line 103, and hot water connecting tube 107 is used for the hot water guiding water spot in hot-water line 103 106;One end of cold water connecting tube 108 is connected with water spot 106, and the other end is connected with cold water pipe 104, and cold water connecting tube 108 is used In by the cold water guiding water spot 106 in cold water pipe 104.

Fig. 1 and Fig. 2 are please referred to, central hot water gas heater 200 includes water heater body 201, cold water inlet pipe 202nd, cold valves 203, hot water out pipe 204, hot water valve 205, heater 206, water flow sensor 207, booster pump 208 and control Device 209.

Wherein, heater 206 is arranged in water heater body 201.Water heater body is stretched into one end of cold water inlet pipe 202 It is connected in 201 and with heater 206, the other end is used to be connected with water inlet manifold 101 and cold water pipe 104 respectively, hot water out pipe 204 One end stretch into water heater body 201 and be connected with heater 206, the other end is used to be connected with hot-water line 103.Hot water valve 205 are arranged on hot water out pipe 204, for controlling whether hot water out pipe 204 exports hot water;Cold valves 203 are arranged at cold water and entered On pipe 202, for controlling whether cold water inlet pipe 202 is directed into the cold water of water inlet manifold 101 in water heater body 201.Cold water Inlet pipe 202, heater 206, hot water out pipe 204, hot-water line 103, cold water pipe 104 are sequentially connected from head to tail to form circulation line, ginseng The arrow seen in Fig. 1, it represents the water (flow) direction of circulation line.

Water flow sensor 207 and booster pump 208 may be contained within cold water inlet pipe 202, and are connected with controller 209, water Flow sensor 207 is used for the real-time traffic for detecting the reclaimed water of cold water inlet pipe 202.It should be noted that the He of water flow sensor 207 Booster pump 208 can be arranged in water heater body 201 simultaneously, can also be arranged at simultaneously outside water heater body 201.In addition, The setting order of water flow sensor 207 and booster pump 208 is simultaneously not especially limited, and can be that water flow sensor 207 more leans on Nearly total water intaking valve 102 is set, and booster pump 208 is set closer to heater 206, i.e., cold water first passes through water flow sensor 207, then Flow through booster pump 208;Can also be that booster pump 208 is set closer to total water intaking valve 102, water flow sensor 207 is closer to adding Hot device 206 is set, i.e., cold water first passes through booster pump 208, passes through water flow sensor 207.In the present embodiment, water-carrying capacity sensing Device 207 and booster pump 208 be may be contained within water heater body 201, and booster pump 208 is set closer to total water intaking valve 102, current Quantity sensor 207 is set closer to heater 206.

In the state of total water intaking valve 102, cold valves 203, hot water valve 205 are opened, water inlet manifold 101 enters cold water, cold Water enters in water heater body 201 through cold water inlet pipe 202, and booster pump 208 is used to be pressurized water inlet, water flow sensor 207 are used for the flow of the reclaimed water of detection cold water inlet pipe 202 in real time, obtain real-time traffic.Cold water in cold water inlet pipe 202 is by supercharging After pump 208 and water flow sensor 207, into heater 206 in heated, the hot water after heating passes through hot water out pipe 204 Flow into hot-water line 103, used for being opened with water spot 106.Untapped hot water flows to cold water pipe 104 by check valve 105 In, the cold-water reflux in cold water pipe 104 is again introduced into water heater body 201 and heated into cold water inlet pipe 202, is formed Circulation.

Controller 209 is used to start according to the startup flow control booster pump 208 of real-time traffic and booster pump 208, wherein, It is the hot water flow after booster pump 208 is opened to start flow;Controller 209 is additionally operable to following according to real-time traffic and circulation line Circulation control booster pump 208 is closed, wherein, circular flow is the normal flow of circulation line.So as to the central hot water combustion gas Water heater 200 can be utilized with the difference of hot water flow before and after the open and close of water spot 106 to control the start and stop of booster pump 208, realized and closed The flame-out shutdown of water heater, realizes Automatic-boosting hot water flow after water.

It should be noted that circular flow is the normal flow of circulation line, for a structure and the certain (example of annexation Such as duct length, pipe diameter size are certain) circulation line for, the normal flow of the circulation line be substantially it is certain, can With by testing and calculating is obtained ahead of time.

Further, central hot water gas heater 200 at least has water-use model and i.e. two kinds of working conditions of heat pattern. It is divided to two mode of operations below, central hot water gas heater 200 is specifically described respectively:

1. water-use model

Controller 209 is additionally operable to be in water-use model and at least one water spot 106 in central hot water gas heater 200 In the state of opening, and real-time traffic meets to control booster pump 208 to start during relationship below with starting flow:

Q≦Q1,

Wherein, Q is real-time traffic, Q1To start flow.

That is, when user is opened with 106 hot water of water spot, when real-time traffic is less than or equal to opening for booster pump 208 Dynamic flow, then controller 209 controls booster pump 208 to start, so as to be pressurized to hot water flow.

Controller 209 is additionally operable to be in water-use model in central hot water gas heater 200 and be in water spot 106 to close In the state of, and real-time traffic meets to control booster pump 208 to close during relationship below with circular flow:

Q2-Δ≦Q≦Q2+ Δ,

Wherein, Q is real-time traffic, Q2For circular flow, Δ is circular flow regulated value.

Obtained it should be noted that circular flow regulated value is pre-trial or calculate, its according to the difference of circulation line, Accordingly it is adjusted.In addition, after booster pump 208 is closed, there is no water flow signal, central hot water combustion gas heat in Q=0, i.e. pipeline Hydrophone 200 is flame-out to shut down, and supercharging terminates.

Controller 209 is additionally operable to after closed mode is switched to by opening with water spot 106, controls central hot water combustion gas Water heater 200 switches to i.e. heat pattern by water-use model.It should be appreciated that terminated with water spot 106 in Guan Shuihou, water-use model, in Centre hot water gas heater 200 is again introduced into i.e. heat pattern.

2. i.e. heat pattern

I.e. heat pattern is a kind of running status of central hot water gas heater 200, and in such a mode, user opens any Hot water can be used with water spot 106.

Controller 209 is additionally operable to start according to i.e. hot service condition, control booster pump 208.

That is, when central hot water gas heater 200 reaches i.e. hot service condition, controller 209 controls booster pump 208 start.Wherein, i.e., hot service condition is default service condition, and it can be the water temperature relative set according to hot water, certainly Can also be other specification or other set-up modes.

Controller 209 is additionally operable to be in i.e. heat pattern in central hot water gas heater 200 and be in water spot 106 to close In the state of, and real-time traffic meets that the water in relationship below and circulation line reaches i.e. hot stop condition with circular flow When control booster pump 208 close:

Q2-Δ≦Q≦Q2+ Δ,

Wherein, Q is real-time traffic, and Q2 is circular flow, and Δ is circular flow regulated value.

It should be noted that real-time traffic meets Q with circular flow2-Δ≦Q≦Q2+ Δ, central hot water gas heater 200 run heat pattern in sight, and when the water in circulation line reaches i.e. hot stop condition, controller 209 controls booster pump 208 Close.In addition, i.e. hot stop condition is default stop condition, it can be the water temperature relative set according to hot water, certainly Can be other specification or other set-up modes.After booster pump 208 is closed, central hot water gas heater 200 is flame-out to shut down.

Controller 209 is additionally operable to be in i.e. heat pattern in central hot water gas heater 200 and be in water spot 106 to open In the state of, and real-time traffic meets relationship below time control after supercharging with booster pump 208 with the hot water flow of water spot 106 Central hot water gas heater 200 processed is by being that heat pattern switches to water-use model:

Q3-δ≦Q≦Q3+ δ,

Wherein, Q is real-time traffic, Q3To use the hot water flow of water spot 106 after supercharging, δ is hot water flow regulated value.

Obtained it should be noted that hot water flow regulated value is pre-trial or calculate, its according to the difference of circulation line, Accordingly it is adjusted.In addition, unlatching is changed with real-time traffic Q during water spot 106 i.e. under heat pattern, work as Q3-δ≦Q≦Q3+δ When, controller 209 controls central hot water gas heater 200 by being that heat pattern switches to water-use model.

In summary, the central hot water gas heater 200 and its application system that the present embodiment provides can use water The difference of hot water flow to be to control the start and stop of booster pump 208 before and after 106 open and close of point, realizes the flame-out shutdown for closing water heater after water, Automatic-boosting hot water flow is realized, improves user's bathing experience.

Second embodiment

Referring to Fig. 3, present pre-ferred embodiments provide a kind of control method of central hot water gas heater 200, For the central hot water gas heater 200 for controlling first embodiment to provide, the control method includes:

Step S110, the startup flow control booster pump 208 according to real-time traffic and booster pump 208 start, wherein, start Flow is the hot water flow after booster pump 208 is opened.Step S110 is performed by controller 209.

Step S120, closed according to the circular flow of real-time traffic and circulation line control booster pump 208, wherein, circulation Flow is the normal flow of circulation line.Step S120 is performed by controller 209.

Referring to Fig. 4, further, the control method is additionally may included in before step S110, step S100 is carried out.

Step S100, judge that central hot water gas heater 200 is in water-use model or i.e. heat pattern.Work as central hot water Gas heater 200 is in water-use model, performs step S110.Step S100 is performed by controller 209.

Further, in the present embodiment, step S110 includes:

Step S111, it is in water-use model in central hot water gas heater 200 and at least one be in water spot 106 is beaten In the state of opening, and real-time traffic meets to control booster pump 208 to start during relationship below with starting flow:

Q≦Q1,

Wherein, Q is real-time traffic, Q1To start flow.

Step S111 is performed by controller 209.

Further, in the present embodiment, step S120 can include step S121.Step can be performed after step S111 Rapid S121.

Step S121, it is in water-use model in central hot water gas heater 200 and the state closed is in water spot 106 Under, and real-time traffic meets to control booster pump 208 to close during relationship below with circular flow:

Q2-Δ≦Q≦Q2+ Δ,

Wherein, Q is real-time traffic, Q2For circular flow, Δ is circular flow regulated value.

Step S121 is performed by controller 209.

Step 130, after closed mode is switched to by opening with water spot 106, central hot water gas heater is controlled 200 switch to i.e. heat pattern by water-use model.Step S130 is performed by controller 209.

In the step s 100, when judging that central hot water gas heater 200 is in i.e. heat pattern, step S140 is performed.

Step S140, foundation are hot service condition, and control booster pump 208 starts.Step S140 is held by controller 209 OK.

Further, in the present embodiment, step S120 can also include step S122.It can perform after step s 140 Step S122.

Step S122, it is in i.e. heat pattern in central hot water gas heater 200 and the state closed is in water spot 106 Under, and control when the real-time traffic water that meets with circular flow in relationship below and circulation line reaches i.e. hot stop condition Booster pump 208 is closed:

Q2-Δ≦Q≦Q2+ Δ,

Wherein, Q is real-time traffic, and Q2 is circular flow, and Δ is circular flow regulated value.

Step S122 is performed by controller 209.

Further, step S150, it is in i.e. heat pattern in central hot water gas heater 200 and is in water spot 106 In the state of unlatching, and real-time traffic meets relationship below after supercharging with booster pump 208 with the hot water flow of water spot 106 When control central hot water gas heater 200 to switch to water-use model by heat pattern:

Q3-δ≦Q≦Q3+ δ,

Wherein, Q is real-time traffic, Q3To use the hot water flow of water spot 106 after supercharging, δ is hot water flow regulated value.

Step S150 is performed by controller 209.

In summary, the control method for the central hot water gas heater that the present embodiment provides can use water spot 106 The difference of hot water flow to be to control the start and stop of booster pump 208 before and after open and close, realizes the flame-out shutdown for closing water heater after water, realizes Automatic-boosting hot water flow, improve user's bathing experience.

The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (10)

1. a kind of central hot water gas heater, applied to the application system of central hot water gas heater, the central hot water The application system of gas heater include water inlet manifold, hot-water line, cold water pipe and it is multiple use water spot, the hot-water line with it is described cold Water pipe connects, multiple described to be parallel to the hot-water line and the cold water pipe with water spot, it is characterised in that the central hot water combustion Gas water heater includes water heater body, cold water inlet pipe, hot water out pipe, heater, water flow sensor, booster pump and controller;
The heater is arranged in the water heater body, and one end of the cold water inlet pipe is stretched into the water heater body simultaneously It is connected with the heater, the other end is used to be connected with the water inlet manifold and the cold water pipe respectively, the hot water out pipe One end is stretched into the water heater body and is connected with the heater, and the other end is used to be connected with the hot-water line, described cold Water inlet pipe, the heater, the hot water out pipe are used to form circulation line with the hot-water line and the cold water pipe;
The water flow sensor and the booster pump may be contained within the cold water inlet pipe, and are connected with the controller, institute State the real-time traffic that water flow sensor is used to detect the cold water inlet pipe reclaimed water;
The controller is used to control the supercharging pump startup according to the startup flow of the real-time traffic and the booster pump, its In, the flow that starts is the hot water flow after the booster pump is opened;The controller is additionally operable to according to the real-time traffic The booster pump is controlled to close with the circular flow of the circulation line, wherein, the circular flow is the circulation line Normal flow.
2. central hot water gas heater according to claim 1, it is characterised in that the controller is additionally operable to described Central hot water gas heater be in water-use model and it is at least one it is described be in water spot open in the state of, and the reality Shi Liuliang meets to control the supercharging pump startup during relationship below with the startup flow:
Q≦Q1,
Wherein, Q is the real-time traffic, Q1For the startup flow.
3. central hot water gas heater according to claim 2, it is characterised in that the controller is additionally operable to described Central hot water gas heater be in water-use model and it is described with water spot be in close in the state of, and the real-time traffic with The circular flow meets to control the booster pump to close during relationship below:
Q2-Δ≦Q≦Q2+ Δ,
Wherein, Q is the real-time traffic, Q2For the circular flow, Δ is circular flow regulated value.
4. central hot water gas heater according to claim 3, it is characterised in that the controller is additionally operable to described Central hot water gas heater be in i.e. heat pattern and it is described with water spot be in open in the state of, and the real-time traffic with The booster pump is described after supercharging to be met to control the central hot water combustion gas heat during relationship below with the hot water flow of water spot Hydrophone switches to the water-use model by the i.e. heat pattern:
Q3-δ≦Q≦Q3+ δ,
Wherein, Q is the real-time traffic, Q3For the hot water flow with water spot after supercharging, δ is hot water flow regulated value.
5. central hot water gas heater according to claim 1, it is characterised in that the controller is additionally operable to described Central hot water gas heater be in i.e. heat pattern and it is described with water spot be in close in the state of, and the real-time traffic with The circular flow meets to control the supercharging when water in relationship below and the circulation line reaches i.e. hot stop condition Pump is closed:
Q2-Δ≦Q≦Q2+ Δ,
Wherein, Q is the real-time traffic, and Q2 is the circular flow, and Δ is circular flow regulated value.
6. a kind of application system of central hot water gas heater, it is characterised in that the central hot water gas heater is answered With system include water inlet manifold, hot-water line, cold water pipe, it is multiple use water spot and central hot water gas heater, the hot-water line with Cold water pipe connection, it is multiple described to be parallel to the hot-water line and the cold water pipe with water spot;
The central hot water gas heater includes water heater body, cold water inlet pipe, hot water out pipe, heater, water-carrying capacity sensing Device, booster pump and controller;
The heater is arranged in the water heater body, and one end of the cold water inlet pipe is stretched into the water heater body simultaneously It is connected with the heater, the other end is connected with the water inlet manifold and the cold water pipe respectively, one end of the hot water out pipe Stretch into the water heater body and be connected with the heater, the other end is connected with the hot-water line, the cold water inlet pipe, institute State heater, the hot water out pipe and the hot-water line and the cold water pipe and form circulation line;
The water flow sensor and the booster pump may be contained within the cold water inlet pipe, and are connected with the controller, institute State the real-time traffic that water flow sensor is used to detect the cold water inlet pipe reclaimed water;
The controller is used to control the supercharging pump startup according to the startup flow of the real-time traffic and the booster pump, its In, the flow that starts is the hot water flow after the booster pump is opened;The controller is additionally operable to according to the real-time traffic The booster pump is controlled to close with the circular flow of the circulation line, wherein, the circular flow is the circulation line Normal flow.
A kind of 7. control method of central hot water gas heater, for controlling the center as described in claim any one of 1-5 Hot water gas heater, it is characterised in that the control method includes:
The supercharging pump startup is controlled according to the startup flow of the real-time traffic and the booster pump, wherein, it is described to start stream Measure the hot water flow after being opened for the booster pump;
The booster pump is controlled to close according to the circular flow of the real-time traffic and the circulation line, wherein, the circulation Flow is the normal flow of the circulation line.
8. the control method of central hot water gas heater according to claim 1, it is characterised in that described in the foundation The step of startup flow of real-time traffic and the booster pump controls the supercharging pump startup includes:
The central hot water gas heater be in water-use model and it is at least one it is described with water spot be in open in the state of, And the real-time traffic meets to control the supercharging pump startup during relationship below with the startup flow:
Q≦Q1,
Wherein, Q is the real-time traffic, Q1For the startup flow;
The step of circular flow according to the real-time traffic and the circulation line controls the booster pump to close includes: The central hot water gas heater be in water-use model and it is described with water spot be in close in the state of, and it is described in real time Flow meets to control the booster pump to close during relationship below with the circular flow:
Q2-Δ≦Q≦Q2+ Δ,
Wherein, Q is the real-time traffic, Q2For the circular flow, Δ is circular flow regulated value.
9. the control method of central hot water gas heater according to claim 8, it is characterised in that the control method Including:
The central hot water gas heater be in i.e. heat pattern and it is described be in water spot open in the state of, it is and described Real-time traffic with the booster pump is described after supercharging is met to control the center during relationship below with the hot water flow of water spot Hot water gas heater switches to the water-use model by the i.e. heat pattern:
Q3-δ≦Q≦Q3+ δ,
Wherein, Q is the real-time traffic, Q3For the hot water flow with water spot after supercharging, δ is hot water flow regulated value.
10. the control method of central hot water gas heater according to claim 8, it is characterised in that described according to institute Stating the step of the circular flow of real-time traffic and the circulation line controls the booster pump to close also includes:
The central hot water gas heater be in i.e. heat pattern and it is described be in water spot close in the state of, it is and described Real-time traffic meets that the water in relationship below and the circulation line reaches i.e. hot stop condition time control with the circular flow The booster pump is made to close:
Q2-Δ≦Q≦Q2+ Δ,
Wherein, Q is the real-time traffic, and Q2 is the circular flow, and Δ is circular flow regulated value.
CN201710881437.4A 2017-09-26 2017-09-26 Central hot water gas heater and its application system and control method CN107449134A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108489107A (en) * 2018-03-22 2018-09-04 广东万家乐燃气具有限公司 Central heater, system and control method
CN109357393A (en) * 2018-11-01 2019-02-19 华帝股份有限公司 A kind of gas heater shuts down control method
CN109737610A (en) * 2019-01-08 2019-05-10 广东万家乐燃气具有限公司 Water heater control method and water heater
CN110207389A (en) * 2018-10-26 2019-09-06 华帝股份有限公司 A kind of control method of the function of increasing pressure of gas heater
CN110906563A (en) * 2019-12-06 2020-03-24 华帝股份有限公司 Intelligent pressurization control method for gas water heater

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108489107A (en) * 2018-03-22 2018-09-04 广东万家乐燃气具有限公司 Central heater, system and control method
CN110207389A (en) * 2018-10-26 2019-09-06 华帝股份有限公司 A kind of control method of the function of increasing pressure of gas heater
CN109357393A (en) * 2018-11-01 2019-02-19 华帝股份有限公司 A kind of gas heater shuts down control method
CN109737610A (en) * 2019-01-08 2019-05-10 广东万家乐燃气具有限公司 Water heater control method and water heater
CN110906563A (en) * 2019-12-06 2020-03-24 华帝股份有限公司 Intelligent pressurization control method for gas water heater

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