CN108917181A - Full pre-mix condensing heat exchanger - Google Patents
Full pre-mix condensing heat exchanger Download PDFInfo
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- CN108917181A CN108917181A CN201810903925.5A CN201810903925A CN108917181A CN 108917181 A CN108917181 A CN 108917181A CN 201810903925 A CN201810903925 A CN 201810903925A CN 108917181 A CN108917181 A CN 108917181A
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- Prior art keywords
- rear shell
- coil pipe
- front cover
- heat exchanger
- condensing heat
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
- F24H9/0036—Dispositions against condensation of combustion products
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chimneys And Flues (AREA)
Abstract
The present invention provides a kind of full pre-mix condensing heat exchangers, belong to technical field of heat exchange.It solves the problems such as existing heat exchanger heat exchange is bad.This full pre-mix condensing heat exchanger includes rear shell and front cover, spiral helicine coil pipe is installed in rear shell, cricoid flue is formed between the outer wall of coil pipe and the inner wall of rear shell, the top of rear shell is equipped with smoke outlet and the bottom of rear shell is equipped with water inlet and condensation-water drain, front cover is equipped with the burner for protruding into coil pipe center and front cover is equipped with the premix cavity for being connected to combustion chamber, the water inlet end of coil pipe is arranged far from front cover and is connected with water inlet, coil pipe in clockwise spiral and is located at upper right side from the water outlet of coil pipe from the point of view of front cover front, rear shell has the water outlet for being connected to water outlet, water outlet is connected with control water temperature, anti- water temperature overheat and the self-bleeding detection exhaust apparatus of energy.The present invention has many advantages, such as that the thermal efficiency is high, be avoided that noise and overheats overheating problem and long service life.
Description
Technical field
The invention belongs to technical field of heat exchange, are related to a kind of heat exchanger, in particular to a kind of full pre-mix condensing heat
Exchanger.
Background technique
Chinese patent literature data discloses a kind of main heat exchanger of fully pre-mixing gas combustion water heater for heating and has applied for patent
[application number：201720005803.5；Authorization Notice No.：CN206420160U] comprising rear shell, before being mounted in rear shell
Lid, rear shell and front cover constitute confined space, and the radial section of rear shell is circle, and spiral helicine annular coil pipe is equipped in rear shell,
Two connectors of annular coil pipe are downward, and cricoid flue, rear shell are formed between the lateral wall of annular coil pipe and the inner sidewall of rear shell
It is provided with the smoke outlet being connected to flue, front cover, which is provided with, protrudes into the intracardiac burner of annular disk pipe ring, and the side wall of burner is set
It is equipped with evenly distributed venthole, front cover is provided with the air inlet being connected to burner internal, is provided with ignitor on front cover,
Annular coil pipe is by a flat metal tube bending and molding.
The main heat exchanger of above-mentioned fully pre-mixing gas combustion water heater for heating be it is closed, thermal loss, annular disk can be reduced
The heat exchange area of pipe is big, also improves the utilization rate of heat, and two connectors of annular coil pipe are downward, close to front cover connector be into
Water end (W.E.), the connector close to rear cover are water outlet, have smoke chamber between annular coil pipe and rear cover, and cross the high-temperature flue gas pair in smoke chamber
The good effect of heat exchange of water outlet, however water outlet is down-set so that being vented not prompt enough, vapour locking can generate noise, full premix combustion
The water outlet temperature probe of gas water heater for heating is set on the water outlet pipe fitting connected with main heat exchanger, and position is remote, this makes annular disk
Temperature measurement lag and measurement temperature in pipe is relatively low in maximum temperature, leads to water outlet overheat overtemperature, influences using effect, and nothing
Limiting temperature controls second-level protection function, also shortens service life；Flue gas is not enough concentrated, and flue gas is mixed with burning room pressure
Unevenness, burning are not enough, and flue gas flow channel is short, so that heat exchanger time is few, heat absorption is not enough, and the thermal efficiency is still not enough managed
Think；Front cover premixes the small in size of cavity, is unfavorable for pressure stabilizing and burning；Metal fiber burner fire hole area is small, easily blocks；Separately
Outer rear cover and front cover are that riveting links together, and rear cover dimidiation riveting or are welded together so that the later period can not safeguard and
Maintenance, shortens life of product.
Summary of the invention
The purpose of the present invention is being directed to the above-mentioned problems in the prior art, provide a kind of reasonable in design, hot
It is high-efficient, be avoided that noise and overheat overheating problem, full pre-mix condensing heat exchanger with long service life.
Object of the invention can be realized by the following technical scheme：A kind of full pre-mix condensing heat exchanger, including it is rear
Shell and front cover, the rear shell is connected with front cover and the two constitutes sealed chamber, and the radial section of the rear shell is rounded
And spiral helicine coil pipe is installed in rear shell, cricoid flue, institute are formed between the outer wall of the coil pipe and the inner wall of rear shell
The top for the rear shell stated is equipped with smoke outlet and the bottom of rear shell is equipped with water inlet and condensation-water drain, and the front cover, which is equipped with, to be stretched
Enter the burner at coil pipe center and front cover is equipped with the premix cavity for being connected to combustion chamber, which is characterized in that the coil pipe
Water inlet end is arranged far from front cover and is connected with water inlet, and the coil pipe is in clockwise spiral and described from the point of view of front cover front
The water outlet of coil pipe be located at upper right side, the rear shell has the water outlet for being connected to water outlet, the water outlet connection
There are control water temperature, anti-water temperature overheat and the self-bleeding detection exhaust apparatus of energy.
In above-mentioned full pre-mix condensing heat exchanger, the detection exhaust apparatus includes connecing of connecting with water outlet
Head, the connector top are connected with automatic exhaust steam valve, water temperature regulater and anti-overheat protector are also connected on connector.
In above-mentioned full pre-mix condensing heat exchanger, the rectangular in cross-section frame-shaped of the coil pipe and the outer wall of coil pipe
With the equal round-corner transition in turning point of inner wall, the outer wall section of the coil pipe and inner wall section are convexly curved face.In this way
The heat exchange area of coil pipe is big, and heat is changed sufficiently, improves the thermal efficiency, and the inner wall of coil pipe plays guiding function to high-temperature flue gas,
The outer wall of coil pipe will not stop high-temperature flue gas, so that coil pipe is low to the resistance of high-temperature flue gas, airflow smooth avoids noise.
In above-mentioned full pre-mix condensing heat exchanger, the burner includes being cylindrical in shape and the closed burning in bottom
Multiple fire holes are distributed in cylinder, the peripheral wall of the combustion barrel, and the fire hole is greater than fire for the inner end aperture of taper hole shape and fire hole
The outer end aperture in hole.
In above-mentioned full pre-mix condensing heat exchanger, it is equipped with below the inner end by smoke outlet and hides in the rear shell
The smoke deflector of gear, forms smoke extraction chamber between the smoke deflector and smoke outlet, the smoke extraction chamber is connected to flue.Smoke deflector
Setting is played the role of gathering high-temperature flue gas, and high-temperature flue gas is uniformly mixed, the burning room pressure between burner and coil pipe inner wall
It is evenly distributed, is conducive to full combustion, reduce carbon monoxide and oxynitrides, the setting of smoke deflector is so that high-temperature flue gas passes through
After crossing flue, it could discharge fume from smoke outlet using smoke extraction chamber, so that the high-temperature flue gas residence time is long, when increasing heat exchange
Between, coil pipe heat absorption is abundant, improves the thermal efficiency.
In above-mentioned full pre-mix condensing heat exchanger, the smoke deflector include in disk-shaped mounting portion and in etc.
The bottom edge of the shielding part of lumbar triangle plate, the shielding part is connected with mounting portion and the shielding part edge circular arc mistake
It crosses, the mounting portion is fixed in rear shell, and rear shell has the mounting groove for being matched with shielding part shape and being connected to smoke outlet, institute
The shielding part stated, which is located at, makes the vallecular cavity of mounting groove form smoke extraction chamber at the notch of mounting groove, the middle part of mounting portion sinks and is bonded
Rear shell is arranged so that having the smoke chamber excessively for being connected to smoke extraction chamber and flue between mounting portion edge and rear shell.High-temperature flue gas passes through disk
Pipe enters flue, enters smoke chamber later, subsequently enters smoke extraction chamber, then discharge fume from smoke outlet, high-temperature flue gas runner is long, and heat exchange is filled
Point, shielding part plays the role of set guidance high-temperature flue gas, and mounting groove plays positioning action, shielding part is avoided to be impacted by high-temperature flue gas
And shake, so that shielding part the operation is stable, also avoids noise from generating.
In above-mentioned full pre-mix condensing heat exchanger, the section of the premix cavity includes top margin and bottom edge, institute
The top margin stated is less than the length on bottom edge in the length of evagination arc shape and top margin, and bottom edge is bonded front cover setting, the top margin two
End all has the expansion side expanded outwardly, and expansion side is connected by the both ends of vertical edges and bottom edge perpendicular to bottom edge.In this way
The volume for premixing cavity is big, and the voltage regulation performance of gaseous mixture is good, is conducive to stablize burning, advantageously reduces carbon monoxide and nitrogen oxidation
Close object.
In above-mentioned full pre-mix condensing heat exchanger, between the rear shell and front cover, between front cover and burner
It is to be detachably connected.It is easy to assembly in this way, and can dismantle, convenient for later maintenance maintenance, maintenance, extend this full premixed condensed
The service life of formula heat exchanger.
It in above-mentioned full pre-mix condensing heat exchanger, is fixedly connected between the rear shell and front cover by bolt, institute
Cover board is fixed with by bolt in the middle part of the front cover stated, the burner is connected on cover board and has the premix on cover board
Cavity.Front cover and rear shell handling in this way is convenient, and front cover is by the setting of cover board, convenient for the assembly and disassembly of burner, later period
It can be detected directly by cover board together under burner disassembly when maintenance, it is convenient to overhaul without dismantling front cover and rear shell.
In above-mentioned full pre-mix condensing heat exchanger, there are five be circumferentially evenly distributed with and pass through for bolt for the cover board tool
Salient angle, the cover board be equipped with surveillance mirror.Staff is facilitated to observe internal-combustion situation by surveillance mirror, salient angle is set
It sets and not only cover board is connected firmly, but also cover board is made to form Five-pointed star, structure is beautiful, convenient for promoting.
In above-mentioned full pre-mix condensing heat exchanger, the rear shell includes upper and lower part, the top
Connecting side has notch, and the connection side of the lower part has the convex ribs for protruding and being located in notch, the upper and lower part
Two sides all have fin and bolt passes through two fins and is fixedly connected with nut.
In above-mentioned full pre-mix condensing heat exchanger, the rear shell bottom has the sink flowed into for condensed water,
The bottom surface of the sink is obliquely installed to condensation-water drain.Condensed water discharge in this way is smooth, makes there is no condensation hydropexis
The problem of at corroding, extend service life.
Compared with prior art, this full pre-mix condensing heat exchanger is reasonable in design, is avoided that noise and overheat
Overheating problem advantageously reduces carbon monoxide and oxynitrides, and sufficiently, the thermal efficiency is high for heat exchange, and good operating stability uses the longevity
Life length, and later maintenance is easy to maintenance, and use cost is low.
Detailed description of the invention
Fig. 1 is the structural exploded view of this full pre-mix condensing heat exchanger.
Fig. 2 is that the water route of coil pipe in this full pre-mix condensing heat exchanger flows to schematic diagram.
Fig. 3 is the structure sectional view of coil pipe in this full pre-mix condensing heat exchanger.
Fig. 4 is that the high-temperature flue gas of this full pre-mix condensing heat exchanger flows to schematic diagram.
Fig. 5 is the structure sectional view that cavity is premixed in this full pre-mix condensing heat exchanger.
Fig. 6 is the front cover that cover board is removed in this full pre-mix condensing heat exchanger and the structural exploded view of rear shell.
Fig. 7 is the structure sectional view of fire hole in this full pre-mix condensing heat exchanger.
Fig. 8 is the three-dimensional structure diagram that exhaust apparatus is detected in this full pre-mix condensing heat exchanger.
In figure, 1, rear shell；11, smoke outlet；12, water inlet；13, condensation-water drain；14, water outlet；15, mounting groove；16,
Top；161, notch；17, lower part；171, convex ribs；162, fin；18, sink；2, front cover；21, cavity is premixed；211, top margin；
212, bottom edge；213, side is unfolded；214, vertical edges；22, cover board；221, salient angle；222, surveillance mirror；3, coil pipe；31, water inlet end；
32, water outlet；33, arcwall face；4, flue；5, burner；51, combustion barrel；52, fire hole；6, smoke deflector；61, mounting portion；62,
Shielding part；7, smoke extraction chamber；8, smoke chamber is crossed；9, exhaust apparatus is detected；91, connector；92, automatic exhaust steam valve；93, water temperature regulater；
94, anti-overheat protector.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in fig. 1, fig. 2 and fig. 8, this full pre-mix condensing heat exchanger includes rear shell 1 and front cover 2, rear shell 1 and front cover
2 are connected and the two constitutes sealed chamber, the radial section of rear shell 1 is rounded and rear shell 1 in spiral helicine coil pipe 3 is installed,
Coil pipe 3 is Stainless Steel Coil, cricoid flue 4 is formed between the outer wall of coil pipe 3 and the inner wall of rear shell 1, the top of rear shell 1 is equipped with
The bottom of smoke outlet 11 and rear shell 1 is equipped with water inlet 12 and condensation-water drain 13, and front cover 2 is equipped with the combustion for protruding into 3 center of coil pipe
Burner 5 and front cover 2 are equipped with the premix cavity 21 for being connected to combustion chamber, the water inlet end 31 of coil pipe 3 be arranged far from front cover 2 and with into
The mouth of a river 12 is connected, and coil pipe 3 is in clockwise spiral, and from the point of view of 2 front of front cover, the water outlet 32 of coil pipe 3 is located at upper right side, rear shell
1 has the water outlet 14 for being connected to water outlet 32, and it is self-bleeding that water outlet 14 is connected with control water temperature, anti-water temperature overheat and energy
Exhaust apparatus 9 is detected, detection exhaust apparatus 9 includes the connector 91 connecting with water outlet 14, is connected with automatic row at the top of connector 91
Air valve 92 is also connected with water temperature regulater 93 and anti-overheat protector 94 on connector 91.
Automatic exhaust steam valve 92, water temperature regulater 93 and anti-overheat protector 94 are existing in this full pre-mix condensing heat exchanger
Some structures, this will not be repeated here for specific structure, this full pre-mix condensing heat exchanger is by automatic exhaust steam valve 92, water temperature regulater
93 and anti-overheat protector 94 be integrated on the connector 91 being connect with water outlet 14 so that compact-sized, automatic exhaust steam valve 92
In air in water circuit system extreme higher position, timely automated exclusion coil pipe 3, vapour locking is avoided to generate noise, water temperature regulater 93 is real-time
Leaving water temperature is monitored, leaving water temperature is first class of protection above or below offset temperature, and water temperature regulater 93 works so that water temperature out
Degree restores to the leaving water temperature of setting, and anti-94 real-time monitoring of overheat protector is discharged maximum temperature, when leaving water temperature is more than setting
Maximum water temperature when, the automatic second class protection of anti-overheat protector 94, i.e., so that this full pre-mix condensing heat exchanger stop
Heating.
32 temperature detection of water outlet is in time and accurate in this full pre-mix condensing heat exchanger, guarantees that leaving water temperature is setting
Value, there is no water outlet overheat overtemperatutes to avoid vapour locking from generating noise, ensure that using effect but also exhaust is smooth in time,
Improve service life；Coil pipe 3 is the spiral flow-disturbing heat exchange of fair current, and upper and lower temperature difference is small, and heat absorption is more effective, also reduces and bears water
The probability of dirt, coil pipe 3 have single channel and smooth inner wall, and water resistance is low, and front and back pressure difference is small, and the water inlet end 31 of coil pipe 3 is far from before
Lid 2 is arranged, so that the high-temperature flue gas time of contact in water inlet end 31 and flue 4 is more, can utilize the high-temperature flue gas pair being finally discharged
It is effectively exchanged heat at the water inlet end 31 of coil pipe 3, improves the thermal efficiency.
Further describe in detail, as shown in Figure 3 and Figure 4, the rectangular in cross-section frame-shaped of coil pipe 3 and the outer wall of coil pipe 3 and inner wall
The equal round-corner transition in turning point, the outer wall section of coil pipe 3 and inner wall section are convexly curved face 33.The heat exchange of coil pipe 3 in this way
Area is big, and heat is changed sufficiently, improves the thermal efficiency, and the inner wall of coil pipe 3 plays guiding function to high-temperature flue gas, coil pipe 3 it is outer
Wall will not stop high-temperature flue gas, so that coil pipe 3 is low to the resistance of high-temperature flue gas, airflow smooth avoids noise.Such as Fig. 1 and Fig. 7
Shown, burner 5 includes being cylindrical in shape and the closed combustion barrel 51 in bottom, combustion barrel 51 are made of stainless steel material, combustion barrel 51
Peripheral wall multiple fire holes 52 are distributed with, 52 area of fire hole is big, is not easy to plug, and fire hole 52 is the inner end aperture of taper hole shape and fire hole 52
Greater than the outer end aperture of fire hole 52, the so outside jet flames of each fire hole 52, at combustion barrel 51, the pressure of gaseous mixture is high, flow velocity
Fastly, anti-backfire, burning is more abundant, stablizes, and advantageously reduces carbon monoxide and oxynitrides.
The smoke deflector 6 blocked below inner end by smoke outlet 11 is installed, between smoke deflector 6 and smoke outlet 11 in rear shell 1
Smoke extraction chamber 7 is formed, smoke extraction chamber 7 is connected to flue 4.As shown in Figure 1 and Figure 4, smoke deflector 6 includes in disk-shaped 61 He of mounting portion
In the shielding part 62 of isoceles triangle plate, the bottom edge of shielding part 62 is connected with mounting portion 61 and 62 edge circular arc mistake of shielding part
It crosses, mounting portion 61 is fixed in rear shell 1, and rear shell 1 has the mounting groove for being matched with 62 shape of shielding part and being connected to smoke outlet 11
15, shielding part 62, which is located at, makes the vallecular cavity of mounting groove 15 form smoke extraction chamber 7 at the notch 161 of mounting groove 15, in mounting portion 61
Subordinate, which sinks and is bonded rear shell 1, to be arranged so that having the mistake for being connected to smoke extraction chamber 7 and flue 4 between 61 edge of mounting portion and rear shell 1
Smoke chamber 8.Shielding part 62 plays the role of set guidance high-temperature flue gas, and high-temperature flue gas is uniformly mixed, burner 5 and 3 inner wall of coil pipe it
Between combustion chamber in gas pressure distribution it is uniform, be conducive to full combustion, reduce carbon monoxide and oxynitrides, high-temperature flue gas warp
It crosses coil pipe 3 and enters flue 4, entered smoke chamber 8 later, subsequently enter smoke extraction chamber 7, then discharge fume from smoke outlet 11, high-temperature flue gas stream
The road length and residence time is long, heat exchange are abundant.
As shown in Figure 1 and Figure 5, the section for premixing cavity 21 includes top margin 211 and bottom edge 212, and top margin 211 is outer convex
The length of shape and top margin 211 is less than the length on bottom edge 212, and bottom edge 212 is bonded front cover 2 and is arranged, and 211 both ends of top margin all have outward
The expansion side 213 of expansion, expansion side 213 are connect by the vertical edges 214 perpendicular to bottom edge 212 with the both ends on bottom edge 212, in advance
The volume of mixed cavity 21 is big, and the voltage regulation performance of gaseous mixture is good, is conducive to stablize burning, reduces carbon monoxide and nitrogen oxidation is closed
Object.
For the ease of maintenance, between rear shell 1 and front cover 2, between front cover 2 and burner 5 be to be detachably connected, such as Fig. 1
It with shown in Fig. 6, is fixedly connected between rear shell 1 and front cover 2 by bolt, cover board 22, this implementation is fixed with by bolt in the middle part of front cover 2
Burner 5 is connected on cover board 22 and has premix cavity 21 on cover board 22 in example, and 2 periphery of front cover has the company of several protrusions
Socket part one, the periphery of rear shell 1 have interconnecting piece two corresponding with one position of interconnecting piece, and there are five be circumferentially evenly distributed with and supply for the tool of cover board 22
The salient angle 221 that bolt passes through, cover board 22 are equipped with surveillance mirror 222.Rear shell 1, front cover 2, cover board 22 and premix chamber in the present embodiment
Body 21 is aluminium casting.
As shown in Figure 5 and Figure 6, rear shell 1 includes top 16 and lower part 17, and the connection side on top 16 has notch 161, lower part
17 connection side has a convex ribs 171 for protruding and being located in notch 161, top 16 and 17 two sides of lower part all have fin 162 and
Bolt passes through two fins 162 and is fixedly connected with nut, and such rear shell 1 is divided to be manufactured for two parts, reduces difficulty of processing, manufacture essence
Degree is high, and assembly and disassembly are more convenient.In order to which condensed water discharge is smooth, 1 bottom of rear shell has the sink flowed into for condensed water
18, the bottom surface of sink 18 is obliquely installed to condensation-water drain 13.
The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.Herein
Described in specific embodiments are merely illustrative of the spirit of the present invention.Those skilled in the art
It can make various modifications or additions to the described embodiments or be substituted in a similar manner, but can't be inclined
From spirit or beyond the scope defined by the appended claims of the invention.
Claims (10)
1. a kind of full pre-mix condensing heat exchanger, including rear shell（1）And front cover（2）, the rear shell（1）With front cover（2）Phase
Connection and the two composition sealed chamber, the rear shell（1）Radial section is rounded and rear shell（1）It is inside equipped with spiral helicine
Coil pipe（3）, the coil pipe（3）Outer wall and rear shell（1）Inner wall between form cricoid flue（4）, the rear shell（1）
Top be equipped with smoke outlet（11）And rear shell（1）Bottom be equipped with water inlet（12）And condensation-water drain（13）, the front cover
（2）It is equipped with and protrudes into coil pipe（3）The burner at center（5）And front cover（2）It is equipped with the premix cavity for being connected to combustion chamber（21）,
It is characterized in that, the coil pipe（3）Water inlet end（31）Far from front cover（2）Setting and and water inlet（12）It is connected, it is described
Coil pipe（3）In clockwise spiral and from front cover（2）The coil pipe from the point of view of front（3）Water outlet（32）Positioned at upper right side,
The rear shell（1）With being connected to water outlet（32）Water outlet（14）, the water outlet（14）Be connected with control water temperature,
Anti- water temperature overheat and the self-bleeding detection exhaust apparatus of energy（9）.
2. full pre-mix condensing heat exchanger according to claim 1, which is characterized in that the detection exhaust apparatus
（9）Including with water outlet（14）The connector of connection（91）, the connector（91）Top is connected with automatic exhaust steam valve（92）, connector
（91）On be also connected with water temperature regulater（93）With anti-overheat protector（94）.
3. full pre-mix condensing heat exchanger according to claim 1, which is characterized in that the coil pipe（3）Section
Rectangular frame-shaped and coil pipe（3）Outer wall and inner wall the equal round-corner transition in turning point, the coil pipe（3）Outer wall section and interior
Wall section is convexly curved face（34）.
4. full pre-mix condensing heat exchanger according to claim 1 or 2 or 3, which is characterized in that the burner
（5）Including being cylindrical in shape and the closed combustion barrel in bottom（51）, the combustion barrel（51）Peripheral wall multiple fire holes are distributed with（52）,
The fire hole（52）For taper hole shape and fire hole（52）Inner end aperture be greater than fire hole（52）Outer end aperture.
5. full pre-mix condensing heat exchanger according to claim 1, which is characterized in that the rear shell（1）Interior installation
Have smoke outlet（11）Inner end below the smoke deflector that blocks（6）, the smoke deflector（6）With smoke outlet（11）Between formed row
Smoke chamber（7）, the smoke extraction chamber（7）It is connected to flue（4）.
6. full pre-mix condensing heat exchanger according to claim 5, which is characterized in that the smoke deflector（6）Including
In disk-shaped mounting portion（61）With the shielding part for being in isoceles triangle plate（62）, the shielding part（62）Bottom edge and installation
Portion（61）It is connected and the shielding part（62）Edge arc transition, the mounting portion（61）It is fixed on rear shell（1）On,
Rear shell（1）With being matched with shielding part（62）Shape is simultaneously connected to smoke outlet（11）Mounting groove（15）, the shielding part
（62）Positioned at mounting groove（15）Notch（161）Place is so that mounting groove（15）Vallecular cavity formed smoke extraction chamber（7）, mounting portion（61）'s
Middle part sinks and is bonded rear shell（1）It is arranged so that mounting portion（61）Edge and rear shell（1）Between have be connected to smoke extraction chamber（7）With
Flue（4）Cross smoke chamber（8）.
7. full pre-mix condensing heat exchanger according to claim 1, which is characterized in that the premix cavity（21）'s
Section includes top margin（211）The bottom edge and（212）, the top margin（211）In evagination arc shape and top margin（211）Length be less than
Bottom edge（212）Length, bottom edge（212）It is bonded front cover（2）Setting, the top margin（211）Both ends, which all have, to be expanded outwardly
Side is unfolded（213）, side is unfolded（213）By perpendicular to bottom edge（212）Vertical edges（214）With bottom edge（212）Both ends connect
It connects.
8. full pre-mix condensing heat exchanger according to claim 1, which is characterized in that the rear shell（1）And front cover
（2）Between, front cover（2）And burner（5）Between be to be detachably connected.
9. full pre-mix condensing heat exchanger according to claim 8, which is characterized in that the rear shell（1）And front cover
（2）Between be fixedly connected with by bolt, the front cover（2）Middle part is fixed with cover board by bolt（22）, the burner（5）
It is connected to cover board（22）Upper and cover board（22）It is upper that there is the premix cavity（21）, the rear shell（1）Including top（16）
The lower part and（17）, the top（16）Connection side have notch（161）, the lower part（17）Connection side have protrusion
And it is located at notch（161）In convex ribs（171）, the top（16）The lower part and（17）Two sides all have fin（162）And spiral shell
Bolt passes through two fins（162）And it is fixedly connected with nut.
10. full pre-mix condensing heat exchanger according to claim 9, which is characterized in that the cover board（22）Have
The salient angle that five circumferential directions are evenly distributed with and pass through for bolt（221）, the cover board（22）It is equipped with surveillance mirror（222）, after described
Shell（1）Bottom has the sink flowed into for condensed water（18）, the sink（18）Bottom surface to condensation-water drain（13）Inclination
Setting.
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| CN201810903925.5A CN108917181A (en) | 2018-08-09 | 2018-08-09 | Full pre-mix condensing heat exchanger |
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| CN201810903925.5A CN108917181A (en) | 2018-08-09 | 2018-08-09 | Full pre-mix condensing heat exchanger |
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| CN109855437A (en) * | 2019-03-07 | 2019-06-07 | 成都双流积利热能科技股份有限公司 | A kind of condensate and heat exchanger |
| CN110243205A (en) * | 2019-06-24 | 2019-09-17 | 广东万和热能科技有限公司 | A kind of heat exchanger assembly and wall-hung boiler |
| CN110595066A (en) * | 2019-08-07 | 2019-12-20 | 西安交通大学 | Full-premixing condensing type gas heat exchange equipment and heat exchange method |
| CN111006524A (en) * | 2019-12-30 | 2020-04-14 | 四川昊宇龙星科技有限公司 | Full-premixing condensing heat exchanger |
| CN112161264A (en) * | 2020-07-06 | 2021-01-01 | 广东万和热能科技有限公司 | Full-premixing heat exchange combustion system and combustion heat equipment |
| CN113669907A (en) * | 2021-07-29 | 2021-11-19 | 汪业选 | Energy-saving gas condensing boiler convenient to maintain |
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