阅读说明：本技术 一种倒置式燃烧全预混冷凝换热器 (A kind of full premixed condensed heat exchanger of inversion type burning ) 是由 赵华 李志伟 黄根武 王长财 于 2019-09-25 设计创作，主要内容包括：本发明公开了一种倒置式燃烧全预混冷凝换热器,跟据热烟气从上到下的流动方向依次包括便于燃料燃烧的燃烧单元、便于介质吸收能量的换热单元和用于收集冷凝水的冷凝单元。本发明的各项性能指标满足GB25034-2010《燃气采暖热水炉》标准,换热效率按高热值计算达107%,烟气流道优化,难以产生堵塞,冷凝水排放流畅,避免了腐蚀换热器机体,多通道大流量走水,难以在水管内壁结垢,氮氧化物(低于30mg/M<Sup>3</Sup>)和CO排放量低于300ppm。(The invention discloses a kind of full premixed condensed heat exchangers of inversion type burning, with successively including fuel element, the condensing unit convenient for the heat exchange unit of Absorption of Medium energy and for collecting condensed water convenient for fuel combustion according to the flow direction of hot fume from top to bottom.Performance indexes of the invention meets GB25034-2010 " gas-heating water heater " standard, heat exchange efficiency is calculated by high heating value up to 107%, flue gas flow channel optimization, it is difficult to generate blocking, condensed water elimination is smooth, avoids corrosion heat exchanger body, and multichannel big flow is leaked water, it is difficult in pipe inner wall fouling, nitrogen oxides (is lower than 30mg/M 3 ) and CO discharge amount be lower than 300ppm.)

The full premixed condensed heat exchanger 1. a kind of inversion type burns, it is characterised in that: with the flow direction according to hot fume from top to bottom It successively include convenient for the fuel element (9) of fuel combustion, cold convenient for the heat exchange unit (10) of Absorption of Medium energy and for collecting The condensing unit (11) of condensate.

The full premixed condensed heat exchanger 2. a kind of inversion type according to claim 1 burns, it is characterised in that: the heat exchange is single First (10) include multiple stainless steel heat exchange tubes (5) of rectangular array.

The full premixed condensed heat exchanger 3. a kind of inversion type according to claim 2 burns, it is characterised in that: described to be located at together The both ends of one layer of multiple stainless steel heat exchange tubes (5) respectively with laterally catchment packet (6) and first longitudinal direction catchment packet (3) seal company It connects.

The full premixed condensed heat exchanger 4. a kind of inversion type according to claim 3 burns, it is characterised in that: the part is not One end of rust steel heat exchanger tube (5) and laterally catchment packet (6) and water inlet connection (1) sealed connection.

The full premixed condensed heat exchanger 5. a kind of inversion type according to claim 4 burns, it is characterised in that: the part is not Become rusty steel heat exchanger tube (5) one end and laterally catchment packet (6) and second longitudinal direction catchment packet (12) be tightly connected.

The full premixed condensed heat exchanger 6. a kind of inversion type according to claim 5 burns, it is characterised in that: described second is vertical The multiple fuel element heat exchanger tubes (18) for the setting that is centrosymmetric are connected on the packet (12) that catchments.

The full premixed condensed heat exchanger 7. a kind of inversion type according to claim 6 burns, it is characterised in that: the burning is single The longitudinal section of first heat exchanger tube (18) and stainless steel heat exchange tube (5) is ellipse, and the long axis of the ellipse is set along the trend of flue gas It sets.

The full premixed condensed heat exchanger 8. a kind of inversion type according to claim 7 burns, it is characterised in that: the burning is single One end of first heat exchanger tube (18) is connected with water outlet joint (2), and water outlet joint (2), second longitudinal direction are catchmented packet (12), water inlet Connector (1), first longitudinal direction, which are catchmented, packet (3) and laterally catchments and is respectively arranged with boss (17) on packet (6).

The full premixed condensed heat exchanger 9. a kind of inversion type according to claim 8 burns, it is characterised in that: the water outlet Connector (2), second longitudinal direction catchment packet (12), water inlet connection (1), first longitudinal direction catchment packet (3) and laterally catchment on packet (6) and The corresponding position of boss (17) offers the second through-hole (6) respectively.

The full premixed condensed heat exchanger 10. a kind of inversion type according to claim 9 burns, it is characterised in that: the water outlet Catchment packet (12), water inlet connection (1), first longitudinal direction of mouthful connector (2), second longitudinal direction catchments packet (3) and the transverse direction packet (6) that catchments is interior Portion is provided with cavity.

Technical field

The present invention relates to a kind of full premixed condensed heat exchangers, and in particular to a kind of full premixed condensed heat exchange of inversion type burning Device belongs to gas fired-boiler technical field.

Background technique

China is energy consumption big country, is also subject to the big country of environmental pollution, and in order to improve this situation, energy-saving and emission-reduction are Long-term strategy and policy in national economy.According to the regulation of " ambient air quality " GB3095-2012, CO discharge is lower than 2000mg/L, NO_XLower than 30mg/L, common atmospheric burning type heat exchanger is extremely difficult to this standard, and full premixed condensed changes Hot device can be properly arrived at level-one efficiency, and can reach the discharge standard (30mg/m3) of extremely low CO and NOX.

However have in full premixed condensed heat exchanger use process in recent years, discovery has a problem to annoying user, This problem is exactly: due to China's national situation difference, the full premixed condensed heat exchanger of external import is be easy to cause in use The blocking of flue gas gap and pipe scaling.And because gap blocks, cause heat exchange efficiency to decline, flue gas is exceeded.Due to pipe scaling, Heat exchange efficiency decline is also resulted in, and reduces the service life of heat exchanger.

When these full premixed condensed heat exchangers face this problem, clean and maintenance maintenance is extremely difficult.So pole it is necessary to Develop a kind of new heat exchanger, this heat exchanger is firstly the need of there is the advantages of general condensing heat exchanger: efficiency meets GB20665- 2015 " domestic gas instantaneous water heater and gas-heating water heater energy efficiency market and efficiency grades ", flue gas emission meet The requirement of GB3095-2012 " ambient air quality ".Then also need to solve the problems, such as flue gas blocking and pipe scaling.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies of the prior art, and it is complete pre- to provide a kind of inversion type burning Mixed condensing heat exchanger makes efficiency meet GB20665-2015 " domestic gas instantaneous water heater and gas-heating water heater efficiency limit Definite value and efficiency grade ", flue gas emission meets the requirement of GB3095-2012 " ambient air quality ", solves flue gas blocking And the problem of pipe scaling, guarantee meet and exceed level-one efficiency and standard limit of smog release, can adapt to national conditions, can be easy to tie up Shield maintenance, to enable to premix the wall-hung boiler really universal country entirely, meets domestic so that the actual life of heat exchanger increases Demand.

To solve the above problems, the full premixed condensed heat exchanger the invention adopts the following technical scheme: a kind of inversion type burns, With successively including convenient for the fuel element of fuel combustion, convenient for Absorption of Medium energy according to the flow direction of hot fume from top to bottom Heat exchange unit and condensing unit for collecting condensed water.

Be that sheet is practical below to advanced optimize above scheme: the heat exchange unit includes the multiple of rectangular array Stainless steel heat exchange tube.

Advanced optimize: the both ends of the multiple stainless steel heat exchange tubes being located on the same floor respectively with packet and the of laterally catchmenting One longitudinal packet that catchments is tightly connected.

It advanced optimizes: one end of the part stainless steel heat exchange tube and laterally catchment packet and water inlet connection sealing company It connects.

It advanced optimizes: one end of the part stainless steel heat exchange tube and laterally catchmenting packet and second longitudinal direction is catchmented packet sealing Connection.

Advanced optimize: the second longitudinal direction, which is catchmented, wraps the multiple fuel elements for being connected with the setting that is centrosymmetric heat exchange Pipe.

Advanced optimize: the longitudinal section of the fuel element heat exchanger tube and stainless steel heat exchange tube is ellipse, the ellipse Long axis along flue gas move towards setting.

Advanced optimize: one end of the fuel element heat exchanger tube is connected with water outlet joint, and water outlet joint, second are indulged It catchments to the packet that catchments, water inlet connection, first longitudinal direction and packet and laterally catchments to wrap and be respectively arranged with boss.

Advanced optimize: the water outlet joint, second longitudinal direction catchment packet, water inlet connection, first longitudinal direction catchment packet and It laterally catchments and wraps position corresponding with boss and offer the second through-hole respectively.

Advanced optimize: the water outlet joint, second longitudinal direction catchment packet, water inlet connection, first longitudinal direction catchment packet and It laterally catchments and wraps inside and be provided with cavity.

In use, cold water enters stainless steel heat exchange tube through water inlet connection, energy is absorbed subsequently into heat exchange unit heat exchanger tube Amount most becomes hot water outflow through water outlet joint afterwards.

The present invention uses the in line matrix type structure of stainless steel flat tube, and in burner outside, using cooling water channel, (burning is single First heat exchanger tube), fin of arranging on main heat exchange pipeline (stainless steel heat exchange tube), overall structure uses soldering processes, through overtesting Test and use, performance indexes of the invention meet GB25034-2010 " gas-heating water heater " standard, heat exchange efficiency It calculates by high heating value up to 107%, flue gas flow channel optimizes, it is difficult to generate blocking, condensed water elimination is smooth, avoids corrosion heat exchanger Body, multichannel big flow are leaked water, it is difficult to which, in pipe inner wall fouling, nitrogen oxides (is lower than 30mg/M³) and CO discharge amount be lower than 300ppm substantially can be free of cleaning because being difficult to block, and after-sales service is facilitated to maintain, and can carry out effective temperature-reducing, body to burning cavity Product is small, and versatility is high, and compatible more power types, the main heat exchanger that can be used as gas-heating water heater uses, and also can be used as business The full premixed condensed heat exchanger of boiler uses.

Present invention will be further explained below with reference to the attached drawings and examples.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the present invention in embodiment；

Fig. 2 is the structural schematic diagram of the packet of the invention that laterally catchments in embodiment；

Fig. 3 is the structural schematic diagram of water inlet connection in embodiment of the invention；

Fig. 4 is the structural schematic diagram of stainless steel heat exchange tube in embodiment of the invention；

Fig. 5 is the structural schematic diagram of water outlet joint in embodiment of the invention；

Fig. 6 is the structural schematic diagram of heat exchanger shell in embodiment of the invention；

Fig. 7 is that the present invention in embodiment catchment the structural schematic diagram of packet by first longitudinal direction；

Fig. 8 is the structural schematic diagram of heat exchanger support plate in embodiment of the invention；

Fig. 9 is the explosive view of the present invention in embodiment.

In figure: 1- water inlet connection；2- water outlet joint；3- first longitudinal direction is catchmented packet；4- heat exchanger shell；5- stainless steel Heat exchanger tube；6- laterally catchments packet；The periphery 7- heat exchanger tube；8- condensate collector；9- fuel element；10- heat exchange unit；11- is cold Solidifying unit；12- second longitudinal direction is catchmented packet；14- heat exchanger support plate；15- first through hole；The second through-hole of 16-；17- boss；18- Fuel element heat exchanger tube.

Specific embodiment