CN210533121U - Condensing heat exchanger - Google Patents
Condensing heat exchanger Download PDFInfo
- Publication number
- CN210533121U CN210533121U CN201921629278.XU CN201921629278U CN210533121U CN 210533121 U CN210533121 U CN 210533121U CN 201921629278 U CN201921629278 U CN 201921629278U CN 210533121 U CN210533121 U CN 210533121U
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- heat exchanger
- heating water
- combustion gas
- outlet
- 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.)
- Active
Links
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a condensing heat exchanger for supplying heating water and hot water. The condensing heat exchanger comprises a heat exchange core body, a heat exchanger shell, a combustion gas outlet, a condensate water outlet and a heating water inlet and outlet. The heat exchange core body is formed by arranging heat exchange tubes in a staggered manner, and heated water flows in the tubes and forms S-shaped flow from bottom to top under the action of water collecting cavities on two sides; the combustion gas flows in the gaps of the heat exchange tubes from top to bottom; the two media form a combined counter-current and cross-current flow pattern. The heat exchange tube socket form of the utility model increases the disturbance of combustion gas, enhances the heat exchange effect and has low smoke exhaust temperature; the heat exchange tube is inserted into the insertion hole of the end plate and welded at the joint, and the manufacturing method is simple and compact in structure.
Description
Technical Field
The present invention relates to a condensing heat exchanger for supplying heating water and hot water, and more particularly to a heat exchanger allowing effective heat transfer between heating water in a combustion gas and heating water flowing through a heat exchange pipe.
Background
In general, a heating apparatus is equipped with a heat exchanger for exchanging heat between combustion gas generated by combustion of fuel and a heat medium, so that heating or hot water supply can be performed using the heated heat medium. That is, a boiler used in a general household, a public building, etc. is used to heat a room and supply hot water, and a water heater heats cold water to a predetermined temperature in a short time, thereby allowing a user to conveniently use the hot water. Most combustion devices such as boilers and water heaters are composed of the following systems: the system uses oil or gas as fuel and burns the oil or gas by means of a burner, heats water by using combustion heat generated during the combustion, and supplies the heated water (hot water) to a user. The combustion apparatus is equipped with a heat exchanger that absorbs combustion heat generated from the combustor, and various methods for improving heat transfer efficiency of the heat exchanger have been proposed.
In the related art, a method of increasing a heat transfer area of a heat exchange tube by forming a plurality of fins on an outer surface of the heat exchange tube is generally used. However, the heat exchange tube is complicated in manufacturing process and high in manufacturing cost, and the influence on the heat transfer area is not substantially increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve above problem, provide a condensing heat exchanger, be used for combustion gas to add the heat exchanger of hot water, its manufacturing cost is simple, compact structure, water and flue gas form the mobile form of adverse current and cross-flow, and the combustion gas flows through the heat exchange tube clearance of row of inserting, and the torrent degree is great, and heat exchange efficiency is higher.
In order to achieve the above purpose, the utility model provides a following technical scheme: a condensing heat exchanger is characterized in that: the heat exchanger comprises a heat exchange core body, a heat exchanger shell, a combustion gas outlet, a condensate water outlet, a heating water inlet and a heating water outlet which are arranged in the center; the heat exchange core body is arranged inside the heat exchanger shell; the heat exchanger shell is formed by surrounding a left arc-shaped water collecting cavity, a right arc-shaped water collecting cavity, a front side plate and a rear side plate, a combustion gas outlet and a condensate water outlet are formed in the lower portion of the front side plate, a heating water inlet is formed in the lower portion of the right side water collecting cavity, and a heating water outlet is formed in the upper portion of the left side water collecting cavity; a plurality of layers of horizontal arc-shaped partition plates are welded in the water collecting cavity and connected with the end plates, so that a plurality of cavities are formed, and the heated water can flow in an S shape in the heat exchanger;
the heat exchange core body consists of a left end plate, a right end plate and heat exchange tubes, wherein the left end plate and the right end plate are provided with a plurality of layers of tube insertion holes which are formed in a staggered and spaced mode between adjacent rows, each layer of tube insertion holes are formed in the left end plate and the right end plate, the corresponding number of heat exchange tubes are inserted into the corresponding tube insertion holes, then, the joints of the end plates and the ports of the heat exchange tubes are welded and fixed, each heat exchange tube is provided with an open end part with a;
the combustion gas generated by combusting the fuel in the burner at the upper part of the heat exchanger flows in gaps among the heat exchange tubes and is communicated from the upper part to the lower part to form a combustion gas channel; the heating water flows in the heat exchange tube, and is collected in the water collecting cavity and changes the flowing direction to form a heating water channel;
the combustion gas flows in the heat exchange tube gap from top to bottom; the heating water flows through a straight channel in the heat exchange tube, and the direction of the heating water is changed in the water collecting cavity to form S-shaped flow from bottom to top; the two media are in cross-flow and counter-flow forms.
Further, the combustion gas enters the heat exchanger from the top, and the gas channel is communicated with the combustion gas outlet and the condensed water outlet.
Furthermore, the heating water channel is respectively communicated with the heating water inlet (5) and the heating water outlet (8).
Furthermore, the cross section of the heat exchange tube (11) is oval, and the length-to-axis ratio is 1.0-0.1.
Further, heat exchange tube (11) dislocation is piled up, and the distance of two adjacent heat exchange tube (11) is 5 ~ 1000mm, and the distance of every row of heat exchange tube (11) is 5 ~ 1000 mm.
The technical scheme of the utility model, as the example but not limited, have following beneficial effect:
(1) the combustion gas flows through the gaps of the heat exchange tubes which are arranged in a staggered manner, so that the turbulence degree is increased, the heat exchange is enhanced, and the smoke exhaust temperature is lower. (2) The combustion gas and the heating water form a flow form combining counter flow and cross flow, the heat transfer effect is increased by increasing the disturbance of the combustion gas in the gaps of the heat exchange tubes, the combustion gas passes through the gaps among the heat exchange tubes uniformly, the heat exchange is sufficient, and the heat exchange efficiency is high. (3) The heat exchange tube is formed by tube expansion, and the heat exchange tube is inserted into the tube insertion hole of the end plate and is welded and fixed, so that the heat exchange tube is compact in structure, simple in manufacturing method and low in cost.
Drawings
Fig. 1 is an external view schematic diagram of a condensing heat exchanger according to an embodiment of the present invention;
fig. 2 is a schematic view of an end plate of a condensing heat exchanger according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a heat exchange tube of a condensing heat exchanger according to an embodiment of the present invention when stacked;
fig. 4 is a schematic cross-sectional view of a heat exchange tube of a heat exchanger according to an embodiment of the present invention.
In the figure: 1. a heat exchange core body; 2. a heat exchanger housing; 3. a water collection cavity; 4. a partition plate; 5. a heated water inlet; 6. a combustion gas outlet; 7. a condensed water outlet; 8. a heated water outlet; 9. an end plate; 10. a side plate; 11. a heat exchange pipe; 12. the tube is inserted into the hole.
Detailed Description
The technical solution of the condensing heat exchanger according to the present invention will be further described below with reference to the following embodiments and accompanying drawings, which illustrate the structure and operation of the preferred embodiment of the present invention in detail. It should be noted that the embodiments of the present invention have better practicability, and are not intended to limit the present invention in any form. The technical features or the combinations of the technical features described in the embodiments of the present invention should not be considered as isolated, and they may be combined with each other to achieve a better technical effect. The scope of the preferred embodiments of the present invention may also include other implementations, and this should be understood by those skilled in the art to which the embodiments of the present invention pertain. The drawings of the utility model all adopt the very simplified form and all use the non-accurate proportion, only used for convenience, clearly assist the explanation the purpose of the embodiment of the utility model, not the limit condition that the utility model can be implemented. The modification of any structure, the change of the proportional relationship or the adjustment of the size should fall within the scope covered by the technical content of the present invention without affecting the effect of the present invention and the purpose achieved.
The utility model comprises a heat exchange core body 1, a heat exchanger shell body 2, a combustion gas outlet 6, a condensed water outlet 7, a heating water inlet 5 and a heating water outlet 8 which are arranged at the central position; the heat exchange core body 1 is arranged inside the heat exchanger shell 2; the heat exchanger shell 2 is formed by surrounding a left arc-shaped water collecting cavity 3, a right arc-shaped water collecting cavity 3, a front side plate 10 and a rear side plate 10, a combustion gas outlet 6 and a condensate water outlet 7 are arranged at the lower part of the front side plate 10, a heating water inlet 5 is arranged at the lower part of the right side water collecting cavity 3, and a heating water outlet 8 is arranged at the upper part of the left side water collecting cavity; a plurality of layers of horizontal arc-shaped partition plates 4 are welded in the water collecting cavity 3 and are connected with the end plate 9, so that a plurality of cavities are formed, and the heated water can flow in an S shape in the heat exchanger; the heat exchange core body 1 consists of a left end plate 9, a right end plate 9 and heat exchange tubes 11, wherein the left end plate 9 and the right end plate 9 are provided with a plurality of layers of tube insertion holes 12 which are formed between adjacent rows at intervals in a staggered mode, the heat exchange tubes 11 in corresponding number are inserted into the corresponding tube insertion holes 12, then the joints of the end plates 9 and the ports of the heat exchange tubes 11 are welded and fixed, each heat exchange tube is provided with an open end part with a flat tube-shaped section, and heating water flows through the inside of each heat exchange; the combustion gas generated by combusting the fuel in the burner at the upper part of the heat exchanger flows in gaps among the heat exchange pipes 11 and passes through the lower part from the upper part to form a combustion gas channel; the heating water flows in the heat exchange tube 11, and is collected in the water collecting cavity 3, and the flowing direction is changed, so that a heating water channel is formed; the combustion gas flows in the gaps of the heat exchange tubes 11 from top to bottom; the heating water flows through a straight channel in the heat exchange tube 11 and changes direction in the water collecting cavity 3 to form S-shaped flow from bottom to top; the two media are in cross-flow and counter-flow forms.
The combustion gas enters the heat exchanger from the top, and the gas channel is communicated with a combustion gas outlet 6 and a condensed water outlet 7.
The heating water channel is respectively communicated with the heating water inlet 5 and the heating water outlet 8.
The cross section of the heat exchange tube 11 is oval, and the length-to-axis ratio is 1.0-0.1.
The heat exchange tubes 11 are stacked in a staggered mode, the distance between every two adjacent heat exchange tubes 11 is 5-1000 mm, and the distance between every two rows of heat exchange tubes 11 is 5-1000 mm.
Fig. 1 is a perspective view of a heat exchanger according to an embodiment of the present invention.
The heat exchanger comprises a heat exchange tube 11, an end plate 9, a side plate 10, a water collecting cavity 3, a partition plate 4, a combustion gas outlet 6, a condensate water outlet 7, a heating water inlet 5 and a heating water outlet 8.
The heat exchange tube 11 has an oblate open end portion, and heating water flows through the inside of the heat exchange tube 11; and all the heat exchange tubes are stacked in a staggered manner.
The end plate 9 has tube insertion holes 12 arranged at a certain rule, a group of heat exchange tube bundles is formed in each three rows, and both ends of each heat exchange tube 11 are inserted in the tube insertion holes (see fig. 2)
Referring now to fig. 1, a heating water path through a heat exchanger will be described.
The heated water flows into the interior of the heat exchanger through a heated water inlet 5 in the lower portion of the heat exchanger and flows to the left after flowing through the first set of heat exchange tube bundles. The heating water flowing to the left flows to the right along the second group of heat exchange tube bundles after flowing through the left water collecting cavity 3. In this way the heating water flows through the heat exchanger tube bundles in an S-shape and finally exits the heat exchanger through the upper heating water outlet 8.
The heated water exchanges heat with the gas produced by combustion in the topping combustor while flowing through the heat exchange tube bundle. The combustion gas transfers heat to the heating water while flowing through the gaps between the respective heat exchange tubes from the top down.
Fig. 2 is a schematic view of an end plate of a condensing heat exchanger according to an embodiment of the present invention, fig. 3 is a schematic view of a cross section of each heat exchange tube 11 when stacked, and fig. 4 is a schematic view of a cross-sectional shape of one heat exchange tube 11.
The heat exchange tubes 11 are arranged in a staggered manner, and the combustion gas flows in the heat exchange tubes at intervals.
The cross section of the heat exchange tube 11 is oblate, and the length-to-axis ratio is 1.0-0.1.
The heat exchange tubes 11 are formed by tube expansion, inserted into the respective tube insertion holes 12 and welded and fixed to the side end plates 9.
The above description is of the preferred embodiment of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications of the above-described embodiments, which may be made by those skilled in the art based on the above-described disclosure, should be considered as equivalent effective embodiments, and all fall within the scope of the protection of the present invention.
Claims (5)
1. A condensing heat exchanger is characterized in that: the device comprises a heat exchange core body (1) positioned in the center, a heat exchanger shell (2), a combustion gas outlet (6), a condensed water outlet (7), a heating water inlet (5) and a heating water outlet (8); the heat exchange core body (1) is arranged inside the heat exchanger shell (2); the heat exchanger shell (2) is formed by surrounding a left arc-shaped water collecting cavity (3), a right arc-shaped water collecting cavity and a front side plate and a rear side plate (10), a combustion gas outlet (6) and a condensed water outlet (7) are arranged at the lower part of the front side plate (10), a heating water inlet (5) is arranged at the lower part of the right side water collecting cavity (3), and a heating water outlet (8) is arranged at the upper part of the left side water collecting cavity (3); a plurality of layers of horizontal arc-shaped partition plates (4) are welded in the water collecting cavity (3) and are connected with the end plate (9) to form a plurality of cavities, so that the heating water can finish S-shaped flow in the heat exchanger;
the heat exchange core body (1) consists of a left end plate and a right end plate (9) and heat exchange tubes (11), the left end plate and the right end plate (9) are provided with a plurality of layers of tube insertion holes (12) which are formed between adjacent rows in a staggered and spaced mode, each layer of tube insertion holes are formed, the corresponding number of heat exchange tubes (11) are inserted into the corresponding tube insertion holes (12), then the joints of the end plates (9) and the ports of the heat exchange tubes (11) are welded and fixed, each heat exchange tube is provided with an open end part with a flat tube-shaped section, and heating water flows through;
the combustion gas generated by combusting the fuel in the burner at the upper part of the heat exchanger flows in gaps among the heat exchange pipes (11) and passes through the lower part from the upper part to form a combustion gas channel; the heating water flows in the heat exchange tube (11), and is collected in the water collecting cavity (3) and the flowing direction is changed to form a heating water channel;
the combustion gas flows in the gaps of the heat exchange tubes (11) from top to bottom; the heating water flows through a straight channel in the heat exchange tube (11) and changes direction in the water collecting cavity (3) to form S-shaped flow from bottom to top; the two media are in cross-flow and counter-flow forms.
2. A condensing heat exchanger according to claim 1, wherein: the combustion gas enters the heat exchanger from the top, and the gas channel is communicated with a combustion gas outlet (6) and a condensed water outlet (7).
3. A condensing heat exchanger according to claim 1, wherein: the heating water channel is respectively communicated with the heating water inlet (5) and the heating water outlet (8).
4. A condensing heat exchanger according to claim 1, wherein: the cross section of the heat exchange tube (11) is oval, and the length-to-axis ratio is 1.0-0.1.
5. A condensing heat exchanger according to claim 1, wherein: the heat exchange tubes (11) are stacked in a staggered mode, the distance between every two adjacent heat exchange tubes (11) is 5-1000 mm, and the distance between every two rows of heat exchange tubes (11) is 5-1000 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921629278.XU CN210533121U (en) | 2019-09-27 | 2019-09-27 | Condensing heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921629278.XU CN210533121U (en) | 2019-09-27 | 2019-09-27 | Condensing heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210533121U true CN210533121U (en) | 2020-05-15 |
Family
ID=70606969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921629278.XU Active CN210533121U (en) | 2019-09-27 | 2019-09-27 | Condensing heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210533121U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514038A (en) * | 2019-09-27 | 2019-11-29 | 南京同诚节能环保装备研究院有限公司 | A kind of condensing heat exchanger |
| CN116878314A (en) * | 2023-07-21 | 2023-10-13 | 青岛钛钽铌锆连续化反应器有限公司 | Compact array short-distance radial heat exchange slit reaction multifunctional module |
-
2019
- 2019-09-27 CN CN201921629278.XU patent/CN210533121U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514038A (en) * | 2019-09-27 | 2019-11-29 | 南京同诚节能环保装备研究院有限公司 | A kind of condensing heat exchanger |
| CN116878314A (en) * | 2023-07-21 | 2023-10-13 | 青岛钛钽铌锆连续化反应器有限公司 | Compact array short-distance radial heat exchange slit reaction multifunctional module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5043859B2 (en) | Condenser boiler heat exchanger for heating and hot water supply | |
| US9250021B2 (en) | Heat exchanger | |
| CN210533121U (en) | Condensing heat exchanger | |
| CN101782270A (en) | Condensing gas boiler | |
| CN111765635A (en) | Energy-saving environment-friendly heat conduction oil boiler | |
| KR101031101B1 (en) | separation type heat exchanger | |
| RU2722493C1 (en) | Boiler with forced circulation | |
| KR200284927Y1 (en) | High Efficiency Heat Recovery Apparatus | |
| CN110514038A (en) | A kind of condensing heat exchanger | |
| CN115420020A (en) | Heat exchanger and gas water heater | |
| CN214384384U (en) | Heat exchanger of steam generating equipment | |
| CN107795978A (en) | A kind of alcohol-based fuel boiler | |
| CN112797392A (en) | Improved steam generating equipment | |
| CN208443047U (en) | Low nitrogen condenses stainless steel hot homogeneous solution-type reactor | |
| CN207035908U (en) | A kind of flue gas heat-exchange unit | |
| CN208253948U (en) | Stainless steel heat exchanger and combustor thereof | |
| CN221122269U (en) | Boiler structure with combustion head | |
| CN216143707U (en) | Two-way feedwater heating system of msw incineration boiler | |
| RU200074U1 (en) | HEAT EXCHANGER FOR WATER BOILER | |
| JP2004245515A (en) | Heat exchanging device | |
| CN217441946U (en) | Gas water heater with high heat exchange rate | |
| CN216010795U (en) | Shell type coal-fired water pipe boiler with changed heat exchange mode | |
| CN219624255U (en) | Full-premix condensing combustion heat exchange device for hot water heating boiler | |
| CN220912063U (en) | Dual-system main heat exchanger and gas heating water heater thereof | |
| CN215372394U (en) | Improved steam generating equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |