CN215809263U - Full premix condensation main heat exchanger - Google Patents
Full premix condensation main heat exchanger Download PDFInfo
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- CN215809263U CN215809263U CN202121852750.3U CN202121852750U CN215809263U CN 215809263 U CN215809263 U CN 215809263U CN 202121852750 U CN202121852750 U CN 202121852750U CN 215809263 U CN215809263 U CN 215809263U
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Abstract
A full-premixing condensation main heat exchanger comprises a heat exchange cavity, a cylindrical heat exchanger with openings at two ends, a heat insulation plate arranged in the cylindrical heat exchanger, a full-premixing burner, a smoke collection cavity cover and a smoke discharge port, wherein the heat exchange cavity comprises a rear shell, a cylindrical body part with openings at two ends, a front cover and the smoke collection cavity cover; the front end and the rear end of the cylindrical body part are respectively spliced with the front annular splicing groove and the rear annular splicing groove, and the water collecting nozzle is communicated with the drainage groove; the front end of the cylindrical heat exchanger is embedded with the front mounting cavity, the rear end of the cylindrical heat exchanger is embedded with the rear mounting cavity, the water outlet pipe extends out of one side of the front cover, the water return pipe extends out of one side of the rear shell, and the full premix burner is fixed on the front cover; the front cover and the rear shell are connected into a whole; the smoke exhaust cavity cover is arranged on the upper opening of the smoke collection cavity and is detachably matched with the smoke exhaust cavity cover. Due to the adoption of the structure, the rear shell and the front cover have good heat preservation and heat insulation performance, and the heat exchange efficiency of the cylindrical heat exchanger is improved; the cylindrical heat exchanger is convenient to assemble with the rear shell and the front cover.
Description
Technical Field
The utility model relates to a wall-mounted gas boiler, in particular to a full-premixing condensation main heat exchanger.
Background
At present, the prior art, chinese patent 201921984148.8, utility model name: a full-premix combustion heat exchange device of a gas wall-mounted furnace comprises a cylindrical heat exchange cavity with an opening at one end, a smoke exhaust interface arranged at the top of the heat exchange cavity, a cylindrical heat exchanger with openings at two ends and a burner, wherein the cylindrical heat exchanger is made by spirally winding a pipe body into a cylinder shape, one end of the pipe body is a water outlet pipe, and the other end of the pipe body is a water return pipe; the burner comprises an injection pipe; the axis of the cylindrical heat exchange cavity is parallel to the horizontal plane, the water return pipe and the water outlet pipe respectively extend out of the cylindrical heat exchange cavity, and the burner is embedded with the opening end of the cylindrical heat exchange cavity; the gas-air mixer comprises a mixing chamber part with a mixing air outlet, an air inlet pipe and a gas inlet pipe, wherein the air inlet pipe and the gas inlet pipe are respectively communicated with the mixing chamber part; the heat insulation plate is arranged in the cylindrical heat exchanger, the heat insulation plate is adjacent to the closed end of the cylindrical heat exchange cavity, the water return pipe extends out of the cylindrical heat exchange cavity between the heat insulation plate and the closed end of the cylindrical heat exchange cavity, and the water outlet pipe extends out of one end of the cylindrical heat exchange cavity adjacent to the combustor; the air outlet end of the fan is communicated with the injection pipe, and the mixed air outlet of the mixing chamber part is communicated with the air inlet end of the fan. There are problems in that: poor heat insulation performance, easy deformation and short service life.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is: the fully premixed condensation main heat exchanger has the characteristics of convenience in assembly, good heat preservation and heat insulation performance, long service life, high heat efficiency and low NOx emission.
The utility model is realized by the following steps: a full-premixing condensation main heat exchanger comprises a heat exchange cavity, a cylindrical heat exchanger with openings at two ends, a heat insulation plate arranged in the cylindrical heat exchanger and a full-premixing burner, wherein the cylindrical heat exchanger is made by spirally winding a cylindrical pipe body, one end of the pipe body is a water outlet pipe, the other end of the pipe body is a water return pipe, and a smoke exhaust gap is formed between the cylindrical heat exchanger and the inner circumferential surface of the heat exchange cavity; it is characterized in that: the heat exchange cavity comprises a rear shell, a cylindrical body part with two open ends and a front cover,
the rear shell comprises a smoke exhaust cavity provided with a rear part, a rear mounting cavity of the heat exchanger, a rear annular insertion groove arranged on the front end surface of the rear mounting cavity, a drainage groove and a drainage interface arranged at the bottom of the rear mounting cavity, and a smoke collection cavity with an upper opening, wherein the smoke collection cavity is communicated with the smoke exhaust cavity;
the rear end of the cylindrical body part is arranged at the water collecting nozzle,
the front cover comprises a combustor hole, a front mounting cavity of the heat exchanger and a front annular insertion groove arranged on the rear end surface of the front mounting cavity, and the combustor hole is communicated with the front mounting cavity;
the smoke collection device also comprises a smoke collection cavity cover, wherein a smoke discharge port is arranged on the smoke collection cavity cover;
the front end and the rear end of the cylindrical body part are respectively spliced with the front annular splicing groove and the rear annular splicing groove, and the water collecting nozzle is communicated with the drainage groove; the front end of the cylindrical heat exchanger is embedded with the front mounting cavity, the rear end of the cylindrical heat exchanger is embedded with the rear mounting cavity, the water outlet pipe extends out of one side of the front cover, the water return pipe extends out of one side of the rear shell, and the full premix burner is fixed on the front cover; the front cover and the rear shell are connected into a whole; the smoke exhaust cavity cover is arranged on the upper opening of the smoke collection cavity and is detachably matched with the smoke exhaust cavity cover.
The full-premixing condensation main heat exchanger is characterized in that: the rear shell is provided with a fixed seat, the front cover is provided with a connecting seat,
also comprises a screw rod, a pipe body and a nut,
the pipe body is arranged between the fixed seat and the connecting seat, and the screw rod penetrates through the connecting hole of the connecting seat, the pipe body and the fixing hole of the fixed seat to be screwed with the nut.
The full-premixing condensation main heat exchanger is characterized in that: the rear shell is formed in one step.
The full-premixing condensation main heat exchanger is characterized in that: the full premix burner comprises a burner head, a base body, an inner slow flow steady flow cavity, a combustion cavity, an ignition needle and an induction needle,
the furnace end comprises a circular seat plate, a mounting seat arranged on the circular seat plate and a full-premix air inlet pipe communicated with the mounting seat,
the seat body comprises a circular seat plate, a first connecting seat and a second connecting seat arranged on the first connecting seat;
one end of the inner slow flow stable flow cavity is opened, the circumferential wall is provided with air guide holes, one end of the combustion cavity is opened, and the circumferential wall is provided with combustion holes;
the second connecting seat is inserted into the opening end of the inner slow flow stabilizing cavity, the first connecting seat is inserted into the opening end of the combustion cavity, and the annular seat plate is fixed on the mounting seat; the circular seat plate is fixed with the front cover, and the combustion cavity extends into the cylindrical heat exchanger.
The full-premixing condensation main heat exchanger is characterized in that: the combustion chamber is connected with the circular seat plate through a combustion chamber; the heat insulation ring plate extends into the cylindrical heat exchanger.
According to the fully-premixed condensation main heat exchanger, due to the adoption of the structure, the rear shell and the front cover have good heat preservation and heat insulation properties, and the heat exchange efficiency of the cylindrical heat exchanger is improved; the cylindrical heat exchanger is convenient to assemble with the rear shell and the front cover.
Drawings
Fig. 1 is one of the cross-sectional views of the present invention.
Fig. 2 is a second cross-sectional view of the present invention.
Fig. 3 is a view a-a of fig. 2.
Fig. 4 is a perspective view of the present invention.
Fig. 5 is one of the exploded perspective views of the present invention.
Fig. 6 is a second exploded perspective view of the present invention.
Fig. 7 is a third exploded perspective view of the present invention.
Fig. 8 is a fourth exploded perspective view of the present invention.
Fig. 9 is a fifth exploded perspective view of the present invention.
FIG. 10 is an exploded perspective view of the fully premixed burner of the present invention.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1, a full-premix condensing main heat exchanger comprises a heat exchange cavity 1, a cylindrical heat exchanger 2 with openings at two ends, a heat insulation plate 3 arranged in the cylindrical heat exchanger and a full-premix burner 4, wherein the cylindrical heat exchanger 2 is made by spirally winding a cylindrical pipe body, one end of the pipe body is a water outlet pipe 21, the other end of the pipe body is a water return pipe 22, and a smoke exhaust gap is formed between the cylindrical heat exchanger 2 and the inner circumferential surface of the heat exchange cavity 1;
said heat exchange chamber 1 comprises a rear shell 11, a cylindrical body 12 open at both ends and a front cover 13,
the rear shell 11 comprises a smoke exhaust cavity 111 provided with a rear part, a rear mounting cavity 112 of the heat exchanger, a rear annular insertion groove 113 arranged on the front end surface of the rear mounting cavity, a drainage groove 114 and a drainage interface 115 arranged at the bottom of the rear mounting cavity, and a smoke collection cavity 116 with an upper opening, wherein the smoke collection cavity 116 is communicated with the smoke exhaust cavity 111;
the rear end of the cylindrical body 12 is provided with a water collection nozzle 121,
the front cover 13 comprises a combustor hole 131, a front mounting cavity 132 of the heat exchanger and a front annular insertion groove 133 arranged on the rear end surface of the front mounting cavity, and the combustor hole 131 is communicated with the front mounting cavity 132;
the smoke collection device also comprises a smoke collection cavity cover 6, wherein a smoke exhaust outlet 61 is arranged on the smoke collection cavity cover 6;
the front end and the rear end of the cylindrical body 12 are respectively spliced with the front annular splicing groove 133 and the rear annular splicing groove 113, and the water collecting nozzle 21 is communicated with the drainage groove 114; the front end of the cylindrical heat exchanger 2 is embedded with the front mounting cavity 132, the rear end is embedded with the rear mounting cavity 112, the water outlet pipe 21 extends out from one side of the front cover 13, the water return pipe 22 extends out from one side of the rear shell 11, and the full premix burner 4 is fixed on the front cover 13; the front cover 13 and the rear shell 11 are connected into a whole; the smoke exhausting cavity cover 6 is arranged on the upper opening of the smoke collecting cavity 116 and is detachably matched with the smoke collecting cavity.
The cylindrical heat exchanger 2 between the heat insulation plate 3 and the full premix burner 4 is a high temperature heat exchange area, the cylindrical heat exchanger 2 between the heat insulation plate 3 and the rear shell 11 is a low temperature heat exchange area, and water in the water return pipe 22 passes through the low temperature heat exchange area, then enters the high temperature heat exchange area, and finally flows out of the water outlet pipe 21.
As a further improvement of the utility model: a fixing seat 117 is arranged on the rear shell 11, a connecting seat 134 is arranged on the front cover 13,
also comprises a screw rod 71, a pipe body 72 and a nut,
the tube 72 is disposed between the fixing seat 117 and the connecting seat 134, and the screw 71 passes through the connecting hole of the connecting seat 134, the tube 72, and the fixing hole of the fixing seat 117 to be screwed with the nut.
The rear housing 11 is formed by one-step molding.
The full premix burner 4 comprises a burner 41, a base 42, an inner slow flow and steady flow cavity 43, a combustion cavity 44, an ignition needle 45 and an induction needle 46,
the burner 41 comprises a circular seat plate 411, a mounting seat 412 arranged on the circular seat plate and a full premix air inlet pipe 413 communicated with the mounting seat,
the seat body 42 comprises a circular seat plate 421, a first connecting seat 422 and a second connecting seat 423 arranged on the first connecting seat;
one end of the inner slow flow stable flow cavity 43 is opened, and the circumferential wall is provided with an air guide hole, and one end of the combustion cavity 44 is opened, and the circumferential wall is provided with a combustion hole;
the ignition needle 45 and the induction needle 46 are fixed on the circular seat plate 411, the second connecting seat 423 is inserted into the opening end of the inner slow flow stable flow cavity 43, the first connecting seat 422 is inserted into the opening end of the combustion cavity 44, and the circular seat plate 421 is fixed on the mounting seat 412; the circular seat plate 411 is fixed with the front cover 13, and the combustion chamber 44 extends into the cylindrical heat exchanger 2;
as a further improvement: the heat exchanger also comprises a heat insulation annular plate 47, the heat insulation annular plate 47 is attached to the circular seat plate 411, the combustion chamber 44 penetrates through the heat insulation annular plate 47, and the heat insulation annular plate 47 extends into one end of the cylindrical heat exchanger 2.
When the device is used, gas and air mixture enters the inner slow flow stabilizing cavity 43 through the full premix air inlet pipe 413 and the mounting seat 412, is buffered and stabilized in the inner slow flow stabilizing cavity 43, then enters a gap between the inner slow flow stabilizing cavity 43 and the combustion cavity 44, then is combusted on a combustion hole of the combustion cavity 43, heat energy firstly heats the cylindrical heat exchanger between the heat insulation plate 3 and the heat insulation annular plate 47, waste heat enters a smoke exhaust gap through a gap between pipe bodies of the cylindrical heat exchanger 2, then enters the cylindrical heat exchanger 2 between the heat insulation plate 3 and the shell 11, and finally flue gas enters the smoke collection cavity 116 through the smoke exhaust cavity 111 and then is exhausted.
What has been described above is merely a preferred embodiment of the present invention. It should be noted that a person skilled in the art could make several modifications and variations without departing from the principle of the present invention, which should also be regarded as the protection scope of the present invention.
Claims (5)
1. A full-premixing condensation main heat exchanger comprises a heat exchange cavity, a cylindrical heat exchanger with openings at two ends, a heat insulation plate arranged in the cylindrical heat exchanger and a full-premixing burner, wherein the cylindrical heat exchanger is made by spirally winding a cylindrical pipe body, one end of the pipe body is a water outlet pipe, the other end of the pipe body is a water return pipe, and a smoke exhaust gap is formed between the cylindrical heat exchanger and the inner circumferential surface of the heat exchange cavity; the method is characterized in that: the heat exchange cavity comprises a rear shell, a cylindrical body part with two open ends and a front cover,
the rear shell comprises a smoke exhaust cavity provided with a rear part, a rear mounting cavity of the heat exchanger, a rear annular insertion groove arranged on the front end surface of the rear mounting cavity, a drainage groove and a drainage interface arranged at the bottom of the rear mounting cavity, and a smoke collection cavity with an upper opening, wherein the smoke collection cavity is communicated with the smoke exhaust cavity;
the rear end of the cylindrical body part is arranged at the water collecting nozzle,
the front cover comprises a combustor hole, a front mounting cavity of the heat exchanger and a front annular insertion groove arranged on the rear end surface of the front mounting cavity, and the combustor hole is communicated with the front mounting cavity;
the smoke collection device also comprises a smoke collection cavity cover, wherein a smoke discharge port is arranged on the smoke collection cavity cover;
the front end and the rear end of the cylindrical body part are respectively spliced with the front annular splicing groove and the rear annular splicing groove, and the water collecting nozzle is communicated with the drainage groove; the front end of the cylindrical heat exchanger is embedded with the front mounting cavity, the rear end of the cylindrical heat exchanger is embedded with the rear mounting cavity, the water outlet pipe extends out of one side of the front cover, the water return pipe extends out of one side of the rear shell, and the full premix burner is fixed on the front cover; the front cover and the rear shell are connected into a whole; the smoke exhaust cavity cover is arranged on the upper opening of the smoke collection cavity and is detachably matched with the smoke exhaust cavity cover.
2. A fully premixed condensing primary heat exchanger according to claim 1 wherein: the rear shell is provided with a fixed seat, the front cover is provided with a connecting seat,
also comprises a screw rod, a pipe body and a nut,
the pipe body is arranged between the fixed seat and the connecting seat, and the screw rod penetrates through the connecting hole of the connecting seat, the pipe body and the fixing hole of the fixed seat to be screwed with the nut.
3. A fully premixed condensing primary heat exchanger according to claim 1 wherein: the rear shell is formed in one step.
4. A fully premixed condensing primary heat exchanger according to claim 1 wherein: the full premix burner comprises a burner head, a base body, an inner slow flow steady flow cavity, a combustion cavity, an ignition needle and an induction needle,
the furnace end comprises a circular seat plate, a mounting seat arranged on the circular seat plate and a full-premix air inlet pipe communicated with the mounting seat,
the seat body comprises a circular seat plate, a first connecting seat and a second connecting seat arranged on the first connecting seat;
one end of the inner slow flow stable flow cavity is opened, the circumferential wall is provided with air guide holes, one end of the combustion cavity is opened, and the circumferential wall is provided with combustion holes;
the second connecting seat is inserted into the opening end of the inner slow flow stabilizing cavity, the first connecting seat is inserted into the opening end of the combustion cavity, and the annular seat plate is fixed on the mounting seat; the circular seat plate is fixed with the front cover, and the combustion cavity extends into the cylindrical heat exchanger.
5. A fully premixed condensing primary heat exchanger according to claim 4 wherein: the combustion chamber is connected with the circular seat plate through a combustion chamber; the heat insulation ring plate extends into the cylindrical heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121852750.3U CN215809263U (en) | 2021-08-09 | 2021-08-09 | Full premix condensation main heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121852750.3U CN215809263U (en) | 2021-08-09 | 2021-08-09 | Full premix condensation main heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215809263U true CN215809263U (en) | 2022-02-11 |
Family
ID=80129561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121852750.3U Active CN215809263U (en) | 2021-08-09 | 2021-08-09 | Full premix condensation main heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215809263U (en) |
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2021
- 2021-08-09 CN CN202121852750.3U patent/CN215809263U/en active Active
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