CN208859879U

CN208859879U - A kind of gas-fired condensing boiler unit

Info

Publication number: CN208859879U
Application number: CN201821205966.9U
Authority: CN
Inventors: 代少东; 王耀; 李永忠
Original assignee: Suzhou Tlep Climate Technology Co Ltd
Current assignee: Suzhou Tlep Climate Technology Co Ltd
Priority date: 2018-07-27
Filing date: 2018-07-27
Publication date: 2019-05-14
Anticipated expiration: 2028-07-27

Abstract

The utility model discloses a kind of gas-fired condensing boiler units, including gas-fired condensing boiler combination sideboard, fuel gas transmission device, fume extractor and N platform gas-fired condensing boiler single machine, the gas-fired condensing boiler single machine is placed in gas-fired condensing boiler combination sideboard, including controller, air supply device, pre-mixing apparatus, wind-collecting cover, blower, burner and heat exchanger, wherein, controller includes signal detection component, Signal Processing Element and control element, and the signal collecting element and Signal Processing Element are connected with the control element respectively；Fuel gas transmission device includes that gas header pipe, combustion gas master control valve, N number of combustion gas are in charge of and N number of single machine gas control valve；Fume extractor includes dividing flue, N number of single machine flue and N number of motorized non-return valve.Gas-fired condensing boiler unit provided by the utility model, serious forgiveness is high, and power regulating range is big, thermal efficiency height and disassembly easy to install.

Description

A kind of gas-fired condensing boiler unit

Technical field

The utility model relates to thermal power plant unit, in particular to a kind of gas-fired condensing boiler unit.

Background technique

The main heat loss of natural gas boiler is heat loss due to exhaust gas, and traditional on-condensing gas utilization equipment is discharged fume warm Degree has lost whole latent heat, also has lost part sensible heat, cause energy waste and environmental pollution usually at 100 DEG C or more.Combustion Gas condensing boiler is primarily referred to as the sensible heat by the vapor in heat exchanger in condensing boiler flue gas, contained by recovered flue gas, The latent heat of vaporization in flue gas contained by vapor is also absorbed simultaneously, is reduced exhaust gas temperature, is reduced heat loss due to exhaust gas, improves boiler hot A kind of heat-exchange apparatus of efficiency.On combustion system, gas-fired condensing boiler is being entered inside heat exchanger using combustion gas and air Technology just fully premixed according to proper proportion 100%, can guarantee combustion gas full combustion before burning, significant while energy saving The content of polluted gas in the flue gas that it is discharged is reduced, condensation technology is the natural gas thermal energy conversion of current most energy-saving and environmental protection Mode.

Gas-fired condensing boiler is widely used in the fields such as resident's heating and hot water supply, but separate unit due to the above advantage The thermal energy of generation described in gas-fired condensing boiler is limited, and it is impossible to meet demand large area heating or supplied water, the prior art is used It heats, takes up a large area, installation maintenance is at high cost in the mode that equipment room floor places more set boiler plants.Meanwhile integrated When boiler, need common flue to save space, but in the case where equipment component operation equipment component is standby (failure or Without heat demand), the flue gas in common flue can be back in the heat exchanger of not running.Due to being contaminated with acid in condensed flue gas Property substance, long-term smoke backflow can damage boiler element, such as burner, fan blade or air filter etc., therefore significantly Reduce boiler life, improve maintenance cost.In addition, gas-fired condensing boiler must have stringent boot sequence control system System, before ignition, needs to carry out careful purging to burner hearth and flue, excludes the fuel gas that may accumulate in furnace in advance. Especially in the case where more boilers work at the same time, the occurrence probability of above-mentioned accident is greatly improved, repair time increased costs, people Member's maintenance maintenance cost is very high, therefore needs to install flue gas check device in flue.

Furthermore the mixability of air fuel gas is an important factor for influencing gas-fired condensing boiler efficiency of combustion, to mix Journey are as follows: blower work makes air enter wind-collecting cover from the air outlet of wind-collecting cover, and then enters blower, and gas supply pipe passes through rainbow It inhales effect and combustion gas is sucked into blower, blower mixes air and combustion gas, is then sent into combustion chamber by outlet.Wind-collecting cover Airstrainer is housed, to stop entrained solid particulate matter in air to enter, prevention of solid particle object causes at air inlet Burner blocking is adsorbed by the lubricating oil between mechanical part, reduces blowing out failure rate.Existing gas gathering mask generallys use note Moulding material is made, easy to damage, not easy to install and leakproofness is poor, while the air inlet of the wind-collecting cover is small, and that there are noises is big, windage is big The disadvantages of, narrow air inlet also limits the filter area of filter device, filtering Netease blocking, it cannot be guaranteed that effective filtering Solid particulate matter in air needs frequent clean and replacement filter device, increases subsequent maintenance and maintenance cost.

Utility model content

In order to solve the above-mentioned technical problem, the specific technical solution of the utility model is as follows:

The utility model provides a kind of gas-fired condensing boiler unit, including gas-fired condensing boiler combination sideboard, fuel gas transmission dress It sets, fume extractor and N platform gas-fired condensing boiler single machine, N is the natural number more than or equal to 2, and the gas-fired condensing boiler single machine is set In in gas-fired condensing boiler combination sideboard, the gas-fired condensing boiler single machine include controller, air supply device, pre-mixing apparatus, Wind-collecting cover, blower, burner and heat exchanger, the controller include signal detection component, Signal Processing Element and control element, The signal collecting element and Signal Processing Element the fuel gas transmission device that is connected respectively with the control element include combustion gas General pipeline, combustion gas master control valve, N number of combustion gas are in charge of with N number of single machine gas control valve, one end and the combustion gas that the combustion gas is in charge of The connection of general pipeline removable seal, the other end are connected with the pre-mixing apparatus, and the fume extractor includes dividing flue, N number of single machine cigarette Road and N number of motorized non-return valve, the both ends of the single machine flue respectively with gas-fired condensing boiler single machine and flue is divided to be connected.

Specifically, the signal detection component is connected with the blower, the control switch of the blower, motorized non-return valve Control switch and the control switch of single machine gas control valve are connected with the control element respectively, and the signal detection component is wind Press signal detection component or current signal detecting element.

Further, the single machine flue includes smoke-intake pipe and smoke exhaust pipe, one end of the smoke-intake pipe and it is described it is electronic only The inlet end removable seal connection of valve is returned, the other end connects the flue gas output end of gas-fired condensing boiler single machine, the smoke exhaust pipe One end connect with the exhaust end removable seal of the motorized non-return valve, it is described divide flue include removable seal combination point Pipe and threeway, the branch pipe of the threeway are connect with the smoke exhaust pipe removable seal.

Preferably, bend connecting fitting is additionally provided in the single machine flue, the bend connecting fitting both ends are stopped with electronic respectively The exhaust end for returning valve is connected with the air inlet removable seal of smoke exhaust pipe, described that flue bottom end is divided to be additionally provided with detachable plug.

Further, the wind-collecting cover includes gas mixed box and at least one inlet box, the inlet box and gas mixed box it is interior Chamber connection, the pre-mixing apparatus are mounted on inside gas mixed box, and the inlet box is equipped with wind-collecting cover air inlet, it is preferable that the collection The tight loop of the protruding wind-collecting cover inlet box is equipped at fan housing air inlet, the air supply device includes air filtration Mechanism and air hose, the both ends of the air hose are affixed with the tight loop and air filtration mechanism respectively.

Specifically, the gas mixed box be equipped with gas mixed box end cap, gas mixed box port and mixed gas outlet, the gas mixed box port with Mixed gas outlet port is opposite, and the gas mixed box end cap is detachably connected with the gas mixed box port, on the gas mixed box end cap also Equipped with fuel gas hole, the combustion gas is in charge of after fuel gas hole to be tightly connected with the input terminal of the pre-mixing apparatus, described pre- to load in mixture The output end set is passed through and is tightly connected after mixed gas exports with the input terminal of blower.

Further, the pre-mixing apparatus includes that venturi premixed device, the first venturi fixed plate and the second venturi are solid Fixed board, it is preferable that it is spirally connected between the venturi premixed device, the first venturi fixed plate and the second venturi fixed plate, it is described First venturi fixed plate is detachably connected with the mixed gas outlet, the second venturi fixed plate and the gas mixed box end cap It is detachably connected.

Further, the gas-fired condensing boiler combination sideboard includes frame, hanging ring, pedestal and is removably mounted at described Shell outside frame, the pedestal are fixed on the bottom surface moulding of the frame, it is preferable that the frame includes at least one Each side of cuboid metal frame, the cuboid metal frame is detachably connected, and the hanging ring is set to the cuboid metal Support frame, the cuboid metal frame are additionally provided on the top of frame, the middle part of the cuboid metal frame and the cross section of bottom It is arranged in parallel in the horizontal direction, and the mutual contact surface of the cuboid metal frame is overlapped.

Specifically, the shell is composed of dismountable cabinet door and sheet metal component, the front panel and side plate of the shell Be equipped with cabinet door, the front panel is equipped with general control panel area, and the backboard of the shell includes upper backboard and lower backboard, it is described on Backboard and lower back difference single machine floss hole, intake pore and water outlet pore, are additionally provided with combustion gas pore in the lower backboard.

Preferably, the controller further includes fault detection element, display element and timing element；The fault detection member Part, timing element and display element are connected with the control element respectively, N number of controller of the gas-fired condensing boiler unit it Between signal transmission carried out by wired or wireless device, the combustion gas condensation single machine further respectively has gas filter, high temperature Warning device, flue gas protective device, flue gas purification device, low gas pressure are tried hard to keep protection unit and water flow protective device.

By adopting the above technical scheme, described in the utility model to have the following beneficial effects:

1. gas-fired condensing boiler unit described in the utility model divides flue and gas header pipe point using parallel gas passes connection The design that combustion gas is in charge of is picked out, occupied area is small, is easily installed and safeguards, saves installation cost；

2. gas-fired condensing boiler unit described in the utility model utilizes the CRANK PULSES of signal detection component detection blower fan, The switch of motorized non-return valve is automatically controlled by control element, opens blower and check-valves before ignition, burner hearth and outside are connected It is logical, the mixed gas of the combustion gas or flue gas and air that may accumulate in burner hearth is purged, and balance air pressure in burner hearth；In gas fired-boiler After single machine stops working, depositing cigarette and closing check-valves in control blower purging burner hearth, anti-non-return cigarette；

3. single machine gas control valve is equipped in gas-fired condensing boiler unit described in the utility model, when Some gases condense When boiler single machine closes or is flame-out, control element closes single machine gas control valve immediately, blocks fuel gas transmission, prevents combustion gas from accumulating In furnace or it is emitted into atmosphere；

4. gas-fired condensing boiler unit described in the utility model, gas stove combination cabinet shell is detachably to connect with frame It connects, frame is detachably connected by cuboid metal frame, can accommodate more gas-fired condensing boiler single machines, and facilitate fission Transport and dismounting, support frame can be according to the size adjusting installation sites of gas-fired condensing boiler single machine, and strong applicability, multi-panel is opened Formula design is put, the care and maintenance of gas-fired condensing boiler single machine is facilitated；

5. the wind-collecting cover in gas-fired condensing boiler unit described in the utility model uses integrated over body case, integrated cover end The split-type design of lid and tight loop simplifies installation and maintenance process so that the premixing system is easily assembled to dismantle.Wind-collecting cover is adopted It is made of metal, it is durable, avoid it damaged due to poor rigidity in dismounting, wind-collecting cover is simple and reliable for structure, easy to produce The automated production of line, and structure can be customized according to demand；Wind-collecting cover increases the area of air inlet, and it is defeated to reduce air The windage sent reduces the noise in operational process.The inlet box of more than one wind-collecting cover can be arranged in combustion gas condensing furnace single machine, increase Add the quantity of connected air supply device, and then increase air filtration area, reduces replacement air filter accessory Number, reduce maintenance cost；

6. gas-fired condensing boiler unit described in the utility model uses the fume extractor automatically controlled, greatly reduce The construction volume of chimney, while heat exchanger is protected, burner reduces maintenance, increases service life, gas-fired condensing boiler single machine Between can improve serious forgiveness each other as guest machine, increase power regulating range, improve the whole thermal efficiency.

Detailed description of the invention

It, below will be to institute in embodiment or description of the prior art in order to illustrate more clearly of the technical solution of the utility model Attached drawing to be used is needed to be briefly described.It should be evident that the accompanying drawings in the following description is only some of the utility model Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these Figure obtains other attached drawings.

The structural schematic diagram for the gas-fired condensing boiler unit that Fig. 1 embodiment 1 provides；

Fig. 2 is fume extractor schematic diagram in embodiment 1；

The structural schematic diagram of Fig. 3 wind-collecting cover into Fig. 5 embodiment 1；

The structural schematic diagram of the pre-mixing apparatus of Fig. 6 embodiment 1, air supply device and fuel gas transmission device；

The structural schematic diagram of the cuboid metal frame of Fig. 7 embodiment 1；

The gas-fired condensing boiler single machine of Fig. 8 embodiment 1 and the structural schematic diagram of gas stove combination cabinet；

The control schematic diagram of the gas-fired condensing boiler single machine of Fig. 9 embodiment 1；

The structural schematic diagram for the gas-fired condensing boiler unit that Figure 10 embodiment 2 provides；

Figure 11 to Figure 12 embodiment 2 wind-collecting cover structural schematic diagram；

The structural schematic diagram of the pre-mixing apparatus of Figure 13 embodiment 2, air supply device and fuel gas transmission device；

The gas-fired condensing boiler single machine of Figure 14 embodiment 2 and the structural schematic diagram of gas stove combination cabinet；

The control schematic diagram of the gas-fired condensing boiler single machine of Figure 15 embodiment 2

1- gas-fired condensing boiler combination sideboard, 3- fume extractor, 4- gas-fired condensing boiler single machine, 41- air supply device, 11- cuboid metal frame, 13- hanging ring, 14- pedestal, 21- combustion gas are in charge of, and 22- single machine gas control valve, 31- divides flue, and 32- is mono- Machine flue, 33- motorized non-return valve, 41- air supply device, 42- pre-mixing apparatus, 43- wind-collecting cover, 44- blower, before 121- Plate, 122- side plate, 123- general control panel area, 124a- upper backboard 124a, 124b- lower backboard 124b, 151- crossbeam, 152 first sides Beam, the second curb girder of 153-, 311- are in charge of, 312- threeway, 321- smoke-intake pipe, 322- smoke exhaust pipe, 323- bend connecting fitting, and 411- is empty Gas filter mechanism, 412- air hose, 431- inlet box, 432- gas mixed box, 431a- wind-collecting cover air inlet, 431b- tight loop, 432a- Gas mixed box end cap, 432b- gas mixed box port, 432c- mix gas outlet, 432d- fuel gas hole, 421- venturi premixed device, 422- the One venturi fixed plate, 423- the second venturi fixed plate.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are in the premise for not making creative work Under every other embodiment obtained, fall within the protection scope of the utility model.

It should be noted that the specification and claims of the utility model and term " first " in above-mentioned attached drawing, " second " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that in this way The data used are interchangeable under appropriate circumstances, so that the embodiments of the present invention described herein can be in addition at this In illustrate or description those of other than sequence implement.In addition, term " includes " and " having " and their any deformation, meaning Figure be to cover it is non-exclusive include, for example, containing the process, method of a series of steps or units, device, product or equipment Those of be not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for these processes, The intrinsic other step or units of method, product or equipment.

Embodiment 1

In conjunction with Fig. 1 to Fig. 9, the present embodiment provides a kind of gas-fired condensing boiler units, including gas-fired condensing boiler combination sideboard 1, fuel gas transmission device, fume extractor 3 and two gas-fired condensing boiler single machines 4, the gas-fired condensing boiler single machine 4 are placed in combustion gas In condensing boiler combination sideboard 1, the gas-fired condensing boiler single machine 4 include controller, air supply device 41, pre-mixing apparatus 42, Wind-collecting cover 43, burner, heat exchanger and blower 44, the controller include signal detection component, Signal Processing Element and control Element, the signal collecting element and Signal Processing Element are connected with the control element respectively, the fuel gas transmission device packet Include gas header pipe, 21 and two single machine gas control valves 23 are in charge of in combustion gas master control valve, two combustion gas, the combustion gas is in charge of 21 One end is connect with the gas header pipe removable seal, and the other end is connected with the pre-mixing apparatus 42, and the fume extractor 3 includes It is divided to 31, two single machine flues 32 of flue and two motorized non-return valves 33, the both ends of the single machine flue 32 are condensed with combustion gas respectively Boiler single machine 4 with divide flue 31 and be connected.

Specifically, the signal detection component is connected with the blower 44, the control switch of the blower 44, electronic non-return The control switch of valve 33 and the control switch of single machine gas control valve 22 are connected with the control element respectively.

Preferably, the single machine gas control valve is solenoid valve, and the signal detection component is wind pressure signal detecting element, The operating wind pressure value of the signal detection component detection blower fan, in gas-fired condensing boiler single machine start-up course, control element is opened It opens motorized non-return valve 33 and starts the operating of blower 44, signal detection component detects that fan pressure is greater than 0, keeps motorized non-return valve 33 in open state, and after blower completes furnace purge, control element opens single machine gas control valve 23, and combustion gas enters to be loaded in mixture in advance It sets 42 and mixes with air；When gas-fired condensing boiler single machine 4 (closing or occur flame-out failure) out of service, control element is closed Closing single machine gas control valve 23, blower 44 remains in operation the flue gas and residual fuel gas purged in burner hearth, after purging, control Element processed closes blower 44, but blower 44 will continue to rotate due to inertia, when signal detection component detects that wind pressure value is 0, i.e., When blower stops operating, control element closes motorized non-return valve 33, realizes flue gas non-return.

The single machine flue 32 include smoke-intake pipe 321 and smoke exhaust pipe 322, one end of the smoke-intake pipe 321 with it is described electronic The inlet end removable seal of check-valves 33 connects, and the other end connects the flue gas output end of gas-fired condensing boiler single machine 4, the row One end of smoke pipe 321 is connect with the exhaust end removable seal of the motorized non-return valve 33, described that flue 31 is divided to include detachable Seal combination is in charge of 311 and two threeways 312, and the branch pipe of the threeway 312 and 322 removable seal of smoke exhaust pipe connect It connects, it is described that 31 bottom end of flue is divided to be additionally provided with detachable plug 315.

The threeway 312 includes a straight tee (ST.TEE) and a skew T, the single machine flue connecting with the skew T branch pipe Be additionally provided with bend connecting fitting 323 in 32,323 both ends of bend connecting fitting respectively with the exhaust end of motorized non-return valve 33 and smoke evacuation The air inlet removable seal of pipe 322 connects, described that 31 bottom end of flue is divided to be additionally provided with detachable plug 315.

The wind-collecting cover 43 includes an inlet box 431 and a gas mixed box 432, the inlet box 431 and gas mixed box 432 Inner cavity connection, the pre-mixing apparatus 42 is mounted on inside gas mixed box 432, and the inlet box 431 is equipped with wind-collecting cover air inlet The tight loop 431b of the protruding wind-collecting cover inlet box, the air are equipped at 431a, the wind-collecting cover air inlet 431a Feeding mechanism 41 include air filtration mechanism 411 and air hose 412, the both ends of the air hose 412 respectively with tight loop 431b and sky Gas filter mechanism 411 is affixed, it is preferable that the affixed connector be flange, and 412 both ends of air hose respectively with air filtration The air-out and tight loop 431b of mechanism 411 are tightly connected.

Preferably, the wind-collecting cover 43 is formed using stamped metal, and wherein gas mixed box 432 and 431 part of inlet box are one Body formed, interface is connected using welding procedure, and the tight loop 431b is separately fabricated and is welded on the wind-collecting cover air inlet At mouth 431a.Inlet box 431 and gas mixed box 432 are rectangular parallelepiped structure, and gas mixed box 432 is vertically arranged, and 431 level of inlet box is set The bottom of integrated cover 43 is set and is located at, 43 surfaces externally and internally of wind-collecting cover is coated with protective paint, prevents wind-collecting cover 43 sudden and violent for a long time Reveal corrosion damage in wet condition.

The gas mixed box 432 is equipped with gas mixed box end cap 432a and the opposite gas mixed box port 432b in position and mixed gas exports 432c, the gas mixed box end cap 432a are detachably connected with the gas mixed box port 432b, are additionally provided on the gas mixed box end cap Fuel gas hole 432d, the combustion gas are in charge of 21 and are tightly connected after fuel gas hole 432d with the input terminal of the pre-mixing apparatus 42, institute The output end for stating pre-mixing apparatus 42 is tightly connected after mixed gas outlet 432c with the input terminal of blower 44.

The pre-mixing apparatus 42 includes that venturi premixed device 421, the first venturi fixed plate 422 and the second venturi are fixed Plate 423 is spirally connected between the venturi premixed device 421, the first venturi fixed plate 422 and the second venturi fixed plate 423, institute It states the first venturi fixed plate 422 to be detachably connected with the mixed gas outlet 432c, the second venturi fixed plate 423 and institute Gas mixed box end cap 432a is stated to be detachably connected.Preferably, bolt sleeve, the gas mixed box end are equipped in venturi mixer 421 Lid 432a, the second venturi fixed plate 423 and venturi premixed device 421 are tightened in the company of fastening in the bolt sleeve by stay bolt It connects.

The gas-fired condensing boiler combination sideboard 1 includes frame, the shell being removably mounted at outside the frame, hanging ring 13 With pedestal 14, for placing gas-fired condensing boiler single machine 4, the hanging ring 13 is set to the top of the frame, the pedestal 14 It is set to the bottom surface of the frame.Preferably, the frame includes cuboid metal frame 11 disposed in parallel in the horizontal direction, institute The contact surface coincidence between cuboid metal frame 11 is stated, the cuboid metal frame 11 is each other by being mounted on contact Fastener on face is detachably connected.Support frame as described above be horizontally placed on cuboid metal framework 11 middle part and bottom it is transversal On face, it is preferable that support frame as described above includes crossbeam 151, the first curb girder 152 and the second curb girder 153,152 He of the first curb girder Second curb girder, 153 relative level is arranged on 11 liang of heel posts of the cuboid metal framework, and the both ends of the crossbeam 151 are equipped with Through-hole, first curb girder 152 and the second curb girder 153 are equipped with the curb girder mounting hole to match with the through-hole, the crossbeam 151 Both ends are detachably connected with the first curb girder 152 and the second curb girder 153 by the through-hole and curb girder mounting hole respectively.

The shell is composed of cabinet door and sheet metal component, and the shell is equipped with front panel 121, side plate 122, top plate 123 And backboard, location hole is provided on the sheet metal component, and the housing mounting holes to match with the location hole are provided on the frame, Connector is equipped in the location hole and housing mounting holes, the connector is any one in auxiliary connection, the front Plate 121 and side plate 122 are equipped with cabinet door, are additionally provided with general control panel area 123, the backboard packet of the shell on plate 121 in front It includes and distinguishes single machine floss hole, water inlet pore on upper backboard 124a and lower backboard 124b, the upper backboard 124a and lower backboard 124b With water outlet pore, combustion gas pore is additionally provided on the lower backboard 124b.

The middle part and bottom of the gas-fired condensing boiler combination sideboard 1 are provided with support frame, two gas-fired condensing boiler lists About 4 machine is placed on support frame as described above, and the width design of gas-fired condensing boiler combination sideboard 1 is that gas-fired condensing boiler single machine 4 is wide 1.2-1.4 times of degree often connect use when gas fired-boiler is run with water pump, and when water pump operation can generate vibration, support frame width Design can prevent that gas furnace single machine from generating shaking because of vibration or side is fallen.

The cabinet door and the frame of the frame are hinged, and self-locking knocker is mounted in cabinet door.Above and below the side plate 122 There are four cabinet door, the height of front cabinet door is higher than the air for being placed on the gas-fired condensing boiler single machine 4 of top for setting on left and right directions Filter mechanism 411, is convenient for changing air filter screen.The outer casing bottom is without sheet metal component, using open by design, the front panel 121, heat release hole is equipped on side plate 122 and backboard.The cuboid metal frame 11 is by metal rolled welding fabrication, the frame With protective layer is coated on shell.

The controller further includes fault detection element and display element；The fault detection element and display element difference Be connected with the control element, between N number of controller of the gas-fired condensing boiler unit by wired or wireless device into The transmission of row signal, the combustion gas condensation single machine further respectively have gas filter, high-temperature alarming device, flue gas protective device, cigarette Air purifying apparatus, low gas pressure are tried hard to keep protection unit and water flow protective device.

Embodiment 2

In conjunction with Figure 10 to Figure 15, the present embodiment provides a kind of gas-fired condensing boiler units, including gas-fired condensing boiler to combine Cabinet 1, fuel gas transmission device, fume extractor 3 and four gas-fired condensing boiler single machines 4, the gas-fired condensing boiler single machine 4 are placed in combustion It is gas-cooled in solidifying boiler combination cabinet 1, the gas-fired condensing boiler single machine 4 includes controller, air supply device 41, pre-mixing apparatus 42, wind-collecting cover 43, burner, heat exchanger and blower 44, the controller include signal detection component, Signal Processing Element and control Element processed, the signal collecting element and Signal Processing Element are connected with the control element respectively, the fuel gas transmission device It is in charge of 21 and four single machine gas control valves 23 including gas header pipe, combustion gas master control valve, four combustion gas, the combustion gas is in charge of 21 One end connect with the gas header pipe removable seal, the other end is connected with the pre-mixing apparatus 42, and the fume extractor 3 wraps It includes 31, four single machine flues 32 of point flue and four motorized non-return valves 33, the both ends of the single machine flue 32 is cold with combustion gas respectively Solidifying boiler single machine 4 with divide flue 31 to be connected.

Preferably, the single machine gas control valve is solenoid valve, and the signal detection component is current signal detecting element.

The single machine flue 32 include smoke-intake pipe 321 and smoke exhaust pipe 322, one end of the smoke-intake pipe 321 with it is described electronic The inlet end removable seal of check-valves 33 connects, and the other end connects the flue gas output end of gas-fired condensing boiler single machine 4, the row One end of smoke pipe 321 is connect with the exhaust end removable seal of the motorized non-return valve 33, described that flue 31 is divided to include detachable Seal combination is in charge of 311 and four threeways 312, and the branch pipe of the threeway 312 and 322 removable seal of smoke exhaust pipe connect It connects, it is described that 31 bottom end of flue is divided to be additionally provided with detachable plug 315.

The threeway 312 includes a straight tee (ST.TEE) and three skew Ts, the single machine flue 32 of the skew T branch pipe connection In be additionally provided with bend connecting fitting 323,323 both ends of bend connecting fitting respectively with the exhaust end and smoke exhaust pipe of motorized non-return valve 33 322 air inlet removable seal connection.

The wind-collecting cover 43 includes two inlet boxs 431 and a gas mixed box 432, the inlet box 431 and gas mixed box 432 Inner cavity connection, the pre-mixing apparatus 42 is mounted on inside gas mixed box 432, and the inlet box 431 is equipped with wind-collecting cover air inlet The tight loop 431b of the protruding wind-collecting cover inlet box, the air are equipped at 431a, the wind-collecting cover air inlet 431a Feeding mechanism 41 include air filtration mechanism 411 and air hose 412, the both ends of the air hose 412 respectively with the tight loop 431b It is affixed with air filtration mechanism 411, it is preferable that the affixed connector be flange, and 412 both ends of air hose respectively with air The air-out and tight loop 431b of filter mechanism 411 are tightly connected, and wind-collecting cover 43 is connected with two sets of air supply devices 42, Gas mixed box 432 and two inlet boxs 431 are rectangular parallelepiped structure, and gas mixed box 432 is vertically arranged, and two 431 levels of inlet box are set Set and be located at the top and bottom of integrated cover 43.

The gas mixed box 432 is equipped with gas mixed box end cap 432a, gas mixed box port 432b and mixed gas exports 432c, the mixed gas Case port 432b is opposite with the mixed gas outlet position 432c, and the gas mixed box end cap 432a and the gas mixed box port 432b are detachable Connection, is additionally provided with fuel gas hole 432d on the gas mixed box end cap, the combustion gas be in charge of 21 pass through after fuel gas hole 432d with it is described pre- The input terminal of mixing device 42 is tightly connected, and the output end of the pre-mixing apparatus 42 is defeated with blower 44 after mixed gas outlet 432c Enter end to be tightly connected.

The gas-fired condensing boiler combination sideboard 1 includes frame, hanging ring 13, pedestal 14 and is removably mounted at outside the frame The shell in portion, for placing gas-fired condensing boiler single machine 4, the hanging ring 13 is set to the top of the frame, the pedestal 14 It is set to the bottom surface of the frame.Preferably, the frame includes cuboid metal frame 11 disposed in parallel in the horizontal direction, tool Body, four cuboid metal frames 11 are arranged in parallel, and the contact surface between cuboid metal frame 11 is overlapped, the cuboid Metal frame 11 is detachably connected by the fastener of installation on the contact surface each other.

Preferably, support frame as described above is horizontally placed on the middle part of the cuboid metal framework 11 and the cross section of bottom On, support frame as described above includes crossbeam 151, the first curb girder 152 and the second curb girder 153, first curb girder 152 and the second curb girder 153 relative levels are arranged on two heel posts of the cuboid metal framework 11, and the both ends of the crossbeam 151 are equipped with through-hole, First curb girder 152 and the second curb girder 153 are equipped with the curb girder mounting hole to match with the through-hole, the both ends of the crossbeam 151 It is detachably connected respectively with the first curb girder 152 and the second curb girder 153 by the through-hole and curb girder mounting hole.It is provided in frame Four support frames.

The shell is composed of cabinet door and sheet metal component, and the shell is equipped with front panel 121, side plate 122, top plate 123 And backboard, location hole is provided on the sheet metal component, and the housing mounting holes to match with the location hole are provided on the frame, Connector is equipped in the location hole and housing mounting holes, the connector is bolt or night bolt, the front panel 121 It is equipped with cabinet door with side plate 122, is additionally provided with general control panel area 123 on plate 121 in front, the backboard of the shell includes upper back Plate 124a and lower backboard 124b, the upper backboard 124a and lower backboard 124b are respectively equipped with single machine floss hole, water inlet pore and go out Water pipe hole is additionally provided with combustion gas pore on the lower backboard 124b.

Specifically, four 4 upper and lower, left and right of gas-fired condensing boiler single machine combinations are placed on support frame as described above, and combustion gas is cold The width design of solidifying boiler combination cabinet 1 is 2.4-2.8 times of 4 width of gas-fired condensing boiler single machine, when gas fired-boiler operation, often with Water pump connection uses, and when water pump operation can generate vibration, and the design of support frame width can prevent gas furnace single machine due to vibration It generates shaking or side is fallen.

The controller further includes fault detection element, display element and timing element；The fault detection element, timing Element and display element are connected with the control element respectively, pass through between N number of controller of the gas-fired condensing boiler unit Wired or wireless device carries out signal transmission, and the combustion gas condensation single machine further respectively has gas filter, high temperature alarm dress It sets, flue gas protective device, flue gas purification device, low gas pressure are tried hard to keep protection unit and water flow protective device.

In gas-fired condensing boiler single machine start-up course, control element opens motorized non-return valve 33 and starts the fortune of blower 44 Turning, signal detection component detects current value that blower 44 operates not equal to 0, keep motorized non-return valve 33 in open state, when After blower completes furnace purge, control element opens single machine gas control valve 23, and combustion gas enters pre-mixing apparatus 42 and mixes with air It closes；When gas-fired condensing boiler single machine 4 (closing or occur flame-out failure) out of service, control element closes single machine combustion gas control Valve 23, the blower 44 start to be purged, while the timing element starts timing, when timing element can be arranged one Between, time which closes as motorized non-return valve, it is preferable that be set as 1min in the present embodiment, 30s is (silent after blowing out The thorax after-blow flyback time recognized) purging terminates, and control element closes blower 44, and the fan blade of blower 44 will continue to rotation one due to inertia The section time, when reaching the time of timing element setting, the fan blade of blower 44 has stopped operating at this time, and control element closes electricity Dynamic check-valves 32, realizes flue gas non-return.

The above is only the preferred embodiment of the present invention for embodiment, is not intended to limit the utility model, it is all Within the spirit and principles of the utility model, it is practical new to should be included in this for any modification, equivalent replacement, improvement and so on Within the protection scope of type.

Claims

1. a kind of gas-fired condensing boiler unit, which is characterized in that including gas-fired condensing boiler combination sideboard (1), fuel gas transmission device, Fume extractor (3) and N platform gas-fired condensing boiler single machine (4), N are the natural number more than or equal to 2, the gas-fired condensing boiler single machine (4) it is placed in gas-fired condensing boiler combination sideboard (1), the gas-fired condensing boiler single machine (4) includes controller, air supply device (41), pre-mixing apparatus (42), wind-collecting cover (43), blower (44), burner and heat exchanger；

The controller includes signal detection component, Signal Processing Element and control element, the signal collecting element and signal Processing element is connected with the control element respectively；

The fuel gas transmission device includes that (21) and N number of single machine combustion gas control are in charge of in gas header pipe, combustion gas master control valve, N number of combustion gas Valve (22) processed, one end that (21) are in charge of in the combustion gas are connect with the gas header pipe removable seal, the other end and the premix Device (42) is connected；

The fume extractor (3) includes dividing flue (31), N number of single machine flue (32) and N number of motorized non-return valve (33), the single machine The both ends of flue (32) respectively with gas-fired condensing boiler single machine (4) and flue (31) is divided to be connected.

2. gas-fired condensing boiler unit according to claim 1, which is characterized in that the signal detection component and the wind Machine (44) is connected, control switch, the control switch and single machine gas control valve of motorized non-return valve (33) of the blower (44) (22) control switch is connected with the control element respectively, and the signal detection component is wind pressure signal detecting element or electric current Signal detection component.

3. gas-fired condensing boiler unit according to claim 1 or 2, which is characterized in that the single machine flue (32) includes Smoke-intake pipe (321) and smoke exhaust pipe (322), one end of the smoke-intake pipe (321) and the inlet end of the motorized non-return valve (33) can Disassembly is tightly connected, and the other end connects the flue gas output end of gas-fired condensing boiler single machine (4), one end of the smoke exhaust pipe (322) It is connect with the exhaust end removable seal of the motorized non-return valve (33), it is described that flue (31) is divided to include what removable seal combined It is in charge of (311) and threeway (312), the branch pipe of the threeway (312) is connect with the smoke exhaust pipe (322) removable seal.

4. gas-fired condensing boiler unit according to claim 3, which is characterized in that be additionally provided in the single machine flue (32) Bend connecting fitting (323), bend connecting fitting (323) both ends exhaust end and smoke exhaust pipe with motorized non-return valve (33) respectively (322) air inlet removable seal connection, it is described that flue (31) bottom end is divided to be additionally provided with detachable plug (313).

5. gas-fired condensing boiler unit according to claim 1,2 or 4, which is characterized in that the wind-collecting cover (43) includes Gas mixed box (432) and at least one inlet box (431), the inlet box (431) is connected to the inner cavity of gas mixed box (432), described Pre-mixing apparatus (42) is mounted on gas mixed box (432) inside, and the inlet box (431) is equipped with wind-collecting cover air inlet (431a), described The tight loop (431b) of the protruding wind-collecting cover inlet box, the air supply dress are equipped at wind-collecting cover air inlet (431a) Setting (41) includes air filtration mechanism (411) and air hose (412), the both ends of the air hose (412) respectively with the tight loop (431b) and air filtration mechanism (411) are affixed.

6. gas-fired condensing boiler unit according to claim 5, which is characterized in that the gas mixed box (432) is equipped with mixed gas Case end cap (432a), gas mixed box port (432b) and mixed gas outlet (432c), the gas mixed box port (432b) and mixed gas export The position (432c) is opposite, and the gas mixed box end cap (432a) is detachably connected with the gas mixed box port (432b), the mixed gas Be additionally provided on case end cap (432a) fuel gas hole (432d), the combustion gas be in charge of (21) across fuel gas hole (432d) afterwards with the premix The input terminal of device (42) is tightly connected, and the output end of the pre-mixing apparatus (42) passes through mixed gas outlet (432c) afterwards and blower (44) input terminal is tightly connected.

7. gas-fired condensing boiler unit according to claim 6, which is characterized in that the pre-mixing apparatus (42) includes literary mound In premixed device (421), the first venturi fixed plate (422) and the second venturi fixed plate (423), the venturi premixed device (421), it is spirally connected between the first venturi fixed plate (422) and the second venturi fixed plate (423), first venturi is fixed Plate (422) is detachably connected with the mixed gas outlet (432c), the second venturi fixed plate (423) and the gas mixed box end Lid (432a) is detachably connected.

8. according to claim 1, gas-fired condensing boiler unit described in 2,4,6 or 7, which is characterized in that the combustion gas condenses pot The shell that furnace combination sideboard (1) includes frame, hanging ring (13), pedestal (14) and be removably mounted at outside the frame, the bottom Seat (14) is fixed on the bottom surface moulding of the frame, and the frame includes at least one cuboid metal frame (11), the length Each side of cube metal frame (11) is detachably connected, and the hanging ring (13) is set to the top of the cuboid metal frame (11) It holds, is additionally provided with support frame, the cuboid metal frame on the middle part of the cuboid metal frame (11) and the cross section of bottom (11) it is arranged in parallel in the horizontal direction, and the mutual contact surface of the cuboid metal frame (11) is overlapped.

9. gas-fired condensing boiler unit according to claim 8, which is characterized in that the shell by dismountable cabinet door and Sheet metal component is composed, and the front panel (121) and side plate (122) of the shell are equipped with cabinet door, is set on the front panel (121) Have general control panel area (123), the backboard of the shell includes upper backboard (124a) and lower backboard (124b), the upper backboard Single machine floss hole, water inlet pore and water outlet pore, the lower backboard (124b) are respectively equipped in (124a) and lower backboard (124b) On be additionally provided with combustion gas pore.

10. according to claim 1, gas-fired condensing boiler unit described in 2,4,6,7 or 9, which is characterized in that the controller is also Including fault detection element, display element and timing element；The fault detection element, timing element and display element respectively with The control element is connected, and is carried out between N number of controller of the gas-fired condensing boiler unit by wired or wireless device Signal transmission, the combustion gas condensation single machine further respectively have gas filter, high-temperature alarming device, flue gas protective device, combustion gas Purification device, low gas pressure are tried hard to keep protection unit and water flow protective device.