CN107401829A - A kind of low nitrogen wall-hung condensing gas furnace of sectional type water cooled - Google Patents

A kind of low nitrogen wall-hung condensing gas furnace of sectional type water cooled Download PDF

Info

Publication number
CN107401829A
CN107401829A CN201710746636.4A CN201710746636A CN107401829A CN 107401829 A CN107401829 A CN 107401829A CN 201710746636 A CN201710746636 A CN 201710746636A CN 107401829 A CN107401829 A CN 107401829A
Authority
CN
China
Prior art keywords
heat exchanger
water
gas
low nitrogen
condensing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710746636.4A
Other languages
Chinese (zh)
Inventor
李军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yinchuan Industrial Science And Technology Development Ltd By Share Ltd
Original Assignee
Yinchuan Industrial Science And Technology Development Ltd By Share Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yinchuan Industrial Science And Technology Development Ltd By Share Ltd filed Critical Yinchuan Industrial Science And Technology Development Ltd By Share Ltd
Priority to CN201710746636.4A priority Critical patent/CN107401829A/en
Publication of CN107401829A publication Critical patent/CN107401829A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/107Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using fluid fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details
    • F24H9/0005Details for water heaters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details
    • F24H9/18Arrangement or mounting of grates or heating means
    • F24H9/1809Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1832Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1836Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel

Abstract

The invention belongs to wall-hung boiler equipment technical field, the low nitrogen wall-hung condensing gas furnace of more particularly to a kind of sectional type water cooled;Including automatic paragraphing control device, bottom plate, the low nitrogen fire row of water cooling, combustion chamber, main heat exchanger, condensing heat exchanger, plate type heat exchanger;The beneficial effects of the present invention are:The technology of the present invention is advanced, effect protrudes, and sets automatic paragraphing formula controller for gas to substitute former general gas valve to reduce energy consumption, and efficiency high, employs automatic paragraphing combustion technology;Protoatmosphere formula burner is changed to sectioned water cooling low NO, using water cooling combustion technology, reaches the effect of energy-saving and emission-reduction, while reduce use and maintenance cost.

Description

A kind of low nitrogen wall-hung condensing gas furnace of sectional type water cooled
Technical field
The invention belongs to wall-hung boiler equipment technical field, the low nitrogen wall-hung condensing gas furnace of more particularly to a kind of sectional type water cooled.
Background technology
In recent years, gas consumption constantly increases, and is also constantly expanded with gas field and scope, and natural gas can not be again Natural disposition, determine that we will give full play to its use value in the application, improve efficiency, economize on gas.Meanwhile how to reduce Caused waste gas after fuel gas buring, reduce the rugged environment Factors on Human classes such as haze weather, water resource pollution, greenhouse effects and be good for The threat of health, also as the basic concept of gas utensil product design and exploitation.Therefore, Beijing's house and committee of municipal and rural construction New regulation is put into effect, i.e., from 1 day October in 2015, Energy Labeling two level and following burnt gas wall hanging furnace are included in forbid first The equipment used.And Beijing environment protection office will promulgate《Emission standard of air pollutants for boilers》In point out:From mark From standard is implemented, the discharged nitrous oxides upper limit is 100mg/kWh in newly-built gas-heating water heater disposal of pollutants limit value.
Based on the consideration in terms of above energy-saving and emission-reduction, the heating thermal efficiency of full pre-mix condensing wall-hung boiler, the hot water thermal efficiency, Discharged nitrous oxides etc. can all meet the requirement of national policy, be high energy-conservation low emission products recognized within the industry.But due to it Production cost is high, installation and debugging are complicated, maintaining is costly and to product running environment, the adaptability of system water quality compared with Difference, therefore, the full pre-mix condensing wall-hung boiler of Chinese market is still in the immature stage at present, technology and application aspect also need into One step Expansion development.So the secondary heat exchange wall-hung condensing gas furnace of one-level efficiency can be reached by as the main flow in market.This heating Stove uses atmospheric burner, and integral combustion is simple in construction, and cost is low, and consumer is acceptant, but relative fully pre-mixing gas combustion is adopted Warm water heater, the content of CO and nitrogen oxides is all higher in caused waste gas after fuel gas buring for the product of this type.In order to Solve the above problems, the applicant's invention devises a kind of low nitrogen wall-hung condensing gas furnace of sectional type water cooled, and former general gas valve is changed For automatic paragraphing formula gas control system, automatic paragraphing combustion technology is employed;It is low that protoatmosphere formula burner is changed to sectioned water cooling Nitrogen burner, using water cooling combustion technology, so as in the case where meeting technological requirement and cost limitation, reach energy-saving and emission-reduction Effect.
The content of the invention
The invention aims to solve, waste gas content caused by burning existing for wall-hung boiler in the prior art is high, produces A kind of the problems such as cost is high, cooling effect difference, there is provided the low nitrogen wall-hung condensing gas furnace of sectional type water cooled.
In order to achieve the above object, the invention provides following technical scheme:
A kind of low nitrogen wall-hung condensing gas furnace of sectional type water cooled, including the low nitrogen fire row of automatic paragraphing control device, bottom plate, water cooling, Combustion chamber, main heat exchanger, condensing heat exchanger, plate type heat exchanger, wherein:The automatic paragraphing control device is arranged under bottom plate End, and automatic paragraphing control device divides two-way nitrogen fire row low with the water cooling uprightly placed to be connected, positioned at the low nitrogen fire row upper end of water cooling The combustion chamber of sheet metal structural is installed, the main heat exchanger with combustion chamber UNICOM, main heat exchanger are installed positioned at the upper end of combustion chamber On be provided with fume hood device, condensing heat exchanger is installed positioned at the upper right side of main heat exchanger, positioned at condensing heat exchanger side install There is blower fan, blower fan with condensing heat exchanger and petticoat pipe UNICOM, high-temperature flue gas is delivered in condensing heat exchanger from petticoat pipe, plate respectively Formula heat exchanger is located at automatic paragraphing control device lower end, the low nitrogen fire row of the water cooling by ventilating joint, segmented gas distributing chamber, separate Plate, gas nozzle, premix chamber, water-cooled copper, orifice are formed, and ventilating joint is arranged on the low nitrogen fire row bottom of water cooling, orifice Installed in the low nitrogen fire row upper end of water cooling, segmented gas distributing chamber is installed positioned at ventilating joint upper end, is segmented by demarcation strip, with Gas distributing chamber upper end is connected with the small-bore gas nozzle of equidistantly distributed, is premix chamber between orifice and gas nozzle, U-shaped water-cooled copper is installed on premix chamber to be connected with water route.
Preferably, water injection valve is installed positioned at plate type heat exchanger water inlet end, positioned at water injection valve side water circulating pump, recirculated water Pump and water cooling Di Dan fire rows UNICOM, averager is installed positioned at water circulating pump upper end, averager passes through pipeline with condensing heat exchanger UNICOM.
Preferably, three-way solenoid valve is installed positioned at automatic paragraphing control device side, three-way solenoid valve passes through pipeline point Not with main heat exchanger and plate type heat exchanger UNICOM.
Preferably, automatic paragraphing control device includes gas ratio valve and the gas distributor with stop valve, combustion gas ratio Example valve is connected with stop valve and gas distributor by nut.
The beneficial effects of the present invention are:The technology of the present invention is advanced, effect protrudes, and sets automatic paragraphing formula combustion gas control dress Put the former general gas valve of substitution and reduce energy consumption, and efficiency high, employ automatic paragraphing combustion technology;Protoatmosphere formula burner is changed For sectioned water cooling low NO, using water cooling combustion technology, reach the effect of energy-saving and emission-reduction, at the same reduce use and maintenance into This.
Brief description of the drawings
Fig. 1 is a kind of low nitrogen wall-hung condensing gas furnace overall structure figure of sectional type water cooled of the present invention;
Fig. 2 is a kind of low nitrogen wall-hung condensing gas furnace automatic paragraphing control device structure chart of sectional type water cooled of the present invention;
Fig. 3 is a kind of low nitrogen fire row structure chart of the low nitrogen wall-hung condensing gas furnace water cooling of sectional type water cooled of the present invention;
Wherein:The low nitrogen fire row 3 of bottom plate 1, automatic paragraphing control device 2, water cooling, combustion chamber 4, main heat exchanger 5, condensing heat-exchange Device 6, plate type heat exchanger 7, blower fan 8, water injection valve 9, water circulating pump 10, averager 11, three-way solenoid valve 12, gas ratio valve 21, Stop valve 22, gas distributor 23, ventilating joint 31, segmented gas distributing chamber 32, demarcation strip 33, gas nozzle 34, premix chamber 35, Water-cooled copper 36, orifice 37, petticoat pipe 51.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with drawings and Examples to the present invention It is described in detail, described embodiment is only the part of the embodiment of the present invention, rather than whole embodiments;It is any Be familiar with the technical staff of technology neighborhood the invention discloses technical scope in, change or replacement can be readily occurred in, should all be covered Within protection scope of the present invention, therefore, protection scope of the present invention should be based on the protection scope of the described claims.
As illustrated, a kind of low nitrogen wall-hung condensing gas furnace of sectional type water cooled of the present invention, including automatic paragraphing control device 2, bottom The low nitrogen fire row 3 of plate 1, water cooling, combustion chamber 4, main heat exchanger 5, condensing heat exchanger 6, plate type heat exchanger 7, wherein:The automatic paragraphing Control device 2 is arranged on the lower end of bottom plate 1, and automatic paragraphing control device 2 divides two-way nitrogen fire row 3 low with the water cooling uprightly placed Connection, the combustion chamber 4 of sheet metal structural is provided with positioned at the low upper end of nitrogen fire row 3 of water cooling, is provided with and fires positioned at the upper end of combustion chamber 4 The main heat exchanger 5 of the UNICOMs of Shao Shi 4, fume hood device 51 is provided with main heat exchanger 5, is provided with positioned at the upper right side of main heat exchanger 5 Condensing heat exchanger 6, blower fan 8 is installed positioned at the side of condensing heat exchanger 6, blower fan 8 respectively with condensing heat exchanger 6 and petticoat pipe 51 It is logical, high-temperature flue gas is delivered in condensing heat exchanger 6 from petticoat pipe 51, plate type heat exchanger 7 is located under automatic paragraphing control device 2 End, the low nitrogen fire row 3 of the water cooling by ventilating joint 31, segmented gas distributing chamber 32, demarcation strip 33, gas nozzle 34, premix chamber 35, Water-cooled copper 36, orifice 37 are formed, and ventilating joint 31 is arranged on the low bottom of nitrogen fire row 3 of water cooling, and orifice 37 is arranged on water cooling The low upper end of nitrogen fire row 3, segmented gas distributing chamber 32 is installed positioned at the upper end of ventilating joint 31, is segmented by demarcation strip 33, with The upper end of air chamber 32 is connected with the small-bore gas nozzle 34 of equidistantly distributed, is pre- between orifice 37 and gas nozzle 34 Mixed chamber 34, U-shaped water-cooled copper 35 is provided with premix chamber 34 and is connected with water route.
It is described that water injection valve 9 is installed positioned at the water inlet end of plate type heat exchanger 7, positioned at the side water circulating pump 10 of water injection valve 9, circulation The UNICOM of nitrogen fire row 3 low with water cooling of water pump 10, averager 11 is installed positioned at the upper end of water circulating pump 10, averager 11 changes with condenser Hot device 6 passes through pipeline UNICOM.
Described to be provided with three-way solenoid valve 12 positioned at the side of automatic paragraphing control device 2, three-way solenoid valve 12 passes through pipeline Respectively with main heat exchanger 5 and the UNICOM of plate type heat exchanger 7.
The automatic paragraphing control device 2 includes gas ratio valve 21 and the gas distributor 23 with stop valve 22, combustion Gas proportioning valve 21 is connected with stop valve 22 and gas distributor 23 by nut.
Embodiment 1:
A kind of low nitrogen wall-hung condensing gas furnace of sectional type water cooled of the present invention, during work, combustion gas passes through the combustion gas of automatic paragraphing formula and controlled System 2 divides two-way to be sent into the low nitrogen fire row 3 of water cooling, after igniting combustion gas burnt in combustion chamber 4, high-temperature flue gas is in master caused by burning Heating in heat exchanger 5, subsequent flue gas is discharged in condensing heat exchanger 6 by blower fan 8 from petticoat pipe 51, by secondary heat exchange heel row Go out.Heating backwater is sent into the low nitrogen fire row 3 of water cooling by water circulating pump 10 during machine run, and heating backwater is low in water cooling Nitrogen fire row 3 is preheated simultaneously, is heated again into condensing heat exchanger 6 by copper pipe afterwards, is added subsequently into main heat exchanger 5 Heat, enter eventually through copper pipe in three-way solenoid valve 12, heating hot water as needed enters in cooling system or entered board-like change In hot device 7.In domestic water pattern, three-way solenoid valve 12 imports heating hot water in plate type heat exchanger 7, at the same time originally Water enters plate type heat exchanger 7 by water injection valve 9, and heating water enters water circulating pump 10 after both heat-shifts, and domestic hot-water passes through Delivery port is flowed into domestic water line.
Embodiment 2:
A kind of low nitrogen wall-hung condensing gas furnace of sectional type water cooled of the present invention, using the low nitrogen fire row 3 of water cooling, by ventilating joint 31, divide Segmentation gas distributing chamber 32, demarcation strip 33, gas nozzle 34, premix chamber 35, water-cooled copper 36, orifice 37 are formed, the low nitrogen of this water cooling The aperture of gas nozzle 34 of fire row 3 is small, premix chamber 35 is highly long, the area of orifice 37 is big, fire row 3 is uprightly placed, flow resistance Air capacity increase that is small, allowing jet-flow volume to inhale, primary air coefficient of discharge reaches 1.6-1.8, so as to reach full premix combustion shape State, only internal flame are burnt, and flame height only has the 50% of ordinary burner, more than 1000 DEG C of high-temperature region shorten 70% with On.Therefore, the low nitrogen fire row 3 of water cooling reduces ignition temperature by increasing primary air amount, reduces stop of the flue gas in high-temperature region Time, so as to effectively suppress the generation of oxynitrides.In addition, the low nitrogen fire row of water cooling uniquely devises cooling copper tube 36, Fire row is cooled down using low-temperature return water, fire row surface temperature is dropped to less than 100 DEG C, is effectively prevented tempering phenomenon, Keep the stability of burning.
Embodiment 3:
A kind of low nitrogen wall-hung condensing gas furnace of sectional type water cooled of the present invention, increases condensation heat exchange system, and the system is changed comprising condensation Hot device 6 and averager 11.Condensing heat exchanger 6 reclaims the heat that flue gas is taken away later that once exchanges heat, to reach the mesh of efficient energy-saving , acid water caused by the recovery condensation of averager 11, discharged after being neutralized with alkaline matter.The thermal efficiency of complete machine can be by common wall hanging 85%-90% of stove or so lifted to 97% or so, or even under condensing state the thermal efficiency more than 100%.
Embodiment 4:
A kind of low nitrogen wall-hung condensing gas furnace of sectional type water cooled of the present invention, using automatic paragraphing control device 2, the device includes bag Gas ratio valve 21 and the gas distributor 23 with stop valve 22 are included, both are connected by nut, automatic paragraphing control dress 2 are put by water outlet temperature setting and disengaging water temperature difference size to control the folding of stop valve 22, it is ensured that constant with coolant-temperature gage While energy consumption is small and efficiency high.

Claims (4)

1. a kind of low nitrogen wall-hung condensing gas furnace of sectional type water cooled, including the low nitrogen fire row of automatic paragraphing control device, bottom plate, water cooling, combustion Burn room, main heat exchanger, condensing heat exchanger, plate type heat exchanger, it is characterised in that:The automatic paragraphing control device is arranged on bottom plate Lower end, and automatic paragraphing control device divides two-way nitrogen fire row low with the water cooling uprightly placed to be connected, positioned at the low nitrogen fire row of water cooling Upper end is provided with the combustion chamber of sheet metal structural, is provided with the main heat exchanger with combustion chamber UNICOM positioned at the upper end of combustion chamber, master changes Fume hood device is provided with hot device, condensing heat exchanger is installed positioned at the upper right side of main heat exchanger, positioned at condensing heat exchanger side Blower fan is installed, high-temperature flue gas with condensing heat exchanger and petticoat pipe UNICOM, is delivered to condensing heat exchanger by blower fan from petticoat pipe respectively In, plate type heat exchanger is located at automatic paragraphing control device lower end, and the low nitrogen fire row of the water cooling is by ventilating joint, segmented distribution Room, demarcation strip, gas nozzle, premix chamber, water-cooled copper, orifice are formed, and ventilating joint is arranged on the low nitrogen fire row bottom of water cooling, Orifice is arranged on the low nitrogen fire row upper end of water cooling, is provided with segmented gas distributing chamber positioned at ventilating joint upper end, is carried out by demarcation strip Segmentation, the small-bore gas nozzle of equidistantly distributed is connected with gas distributing chamber upper end, is between orifice and gas nozzle Premix chamber, U-shaped water-cooled copper is installed on premix chamber and is connected with water route.
A kind of 2. low nitrogen wall-hung condensing gas furnace of sectional type water cooled according to claim 1, it is characterised in that:It is described to be changed positioned at board-like Hot device water inlet end is provided with water injection valve, positioned at water injection valve side water circulating pump, water circulating pump and water cooling Di Dan fire rows UNICOM, is located at Water circulating pump upper end is provided with averager, and averager passes through pipeline UNICOM with condensing heat exchanger.
A kind of 3. low nitrogen wall-hung condensing gas furnace of sectional type water cooled according to claim 1, it is characterised in that:It is described to divide positioned at intelligence Section control device side is provided with three-way solenoid valve, and three-way solenoid valve is joined with main heat exchanger and plate type heat exchanger respectively by pipeline It is logical.
A kind of 4. low nitrogen wall-hung condensing gas furnace of sectional type water cooled according to claim 1, it is characterised in that:The automatic paragraphing control Device processed includes gas ratio valve and the gas distributor with stop valve, gas ratio valve lead to stop valve and gas distributor Cross nut connection.
CN201710746636.4A 2017-08-27 2017-08-27 A kind of low nitrogen wall-hung condensing gas furnace of sectional type water cooled Pending CN107401829A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710746636.4A CN107401829A (en) 2017-08-27 2017-08-27 A kind of low nitrogen wall-hung condensing gas furnace of sectional type water cooled

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710746636.4A CN107401829A (en) 2017-08-27 2017-08-27 A kind of low nitrogen wall-hung condensing gas furnace of sectional type water cooled

Publications (1)

Publication Number Publication Date
CN107401829A true CN107401829A (en) 2017-11-28

Family

ID=60397286

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710746636.4A Pending CN107401829A (en) 2017-08-27 2017-08-27 A kind of low nitrogen wall-hung condensing gas furnace of sectional type water cooled

Country Status (1)

Country Link
CN (1) CN107401829A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110793192A (en) * 2019-11-02 2020-02-14 河北三环太阳能有限公司 Energy-saving environment-friendly low-nitrogen gas wall-mounted furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110793192A (en) * 2019-11-02 2020-02-14 河北三环太阳能有限公司 Energy-saving environment-friendly low-nitrogen gas wall-mounted furnace

Similar Documents

Publication Publication Date Title
CN103090541A (en) Inverted full-premix condensing gas water heater
CN109186092A (en) Energy saving and environment friendly condensing gas wall hanging stove
CN207422353U (en) A kind of HVAC burnt gas wall hanging furnace branch thermostat
CN110793192A (en) Energy-saving environment-friendly low-nitrogen gas wall-mounted furnace
CN205174787U (en) Gas heating water heater of formula of burning by stage
CN107401829A (en) A kind of low nitrogen wall-hung condensing gas furnace of sectional type water cooled
CN207831665U (en) A kind of energy-saving gas hot-blast stove
CN206145956U (en) Second grade heat transfer condensing gas heating water heater of piggyback control
CN207094991U (en) A kind of low nitrogen wall-hung condensing gas furnace of sectional type water cooled
CN212274265U (en) Low-nitrogen condensation wall-mounted furnace
CN209147422U (en) Wall-mounted gas heating stove
CN203704329U (en) Energy-saving and environment-friendly household heating boiler
CN206145958U (en) Low nitrogen emission second grade heat transfer condensing gas heating water heater of piggyback control
CN207279705U (en) A kind of energy-saving and environment-friendly coal-fired hot-air heating stove
CN110207181A (en) Condensing waste heat recycles hot water Chinese meal stove
CN104676656A (en) Energy-saving environment-friendly domestic heating boiler
CN205579720U (en) Energy saving and emission reduction's gas hanging stove
CN205448274U (en) Full premix hangs down nitrogen fine copper boiler with oxygen sensor
CN105387507B (en) Energy saving and environment friendly combustion gas condensation module heating unit
CN205119504U (en) Warm dual -purpose stove of bathing of condensing gas
CN108758678A (en) Nitrogen oxides minimum discharge system, discharge energy saver and flue gas waste heat recoverer
CN204880061U (en) Horizontal gas boiler
CN204006682U (en) A kind of condensation-type gas-fired heating water heater
CN201724387U (en) Heat exchange hot blast system for fuel gas
CN214307605U (en) Improved instant heating type gas wall-mounted furnace

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination