CN203148039U - Compact heat exchanger of gas appliance - Google Patents
Compact heat exchanger of gas appliance Download PDFInfo
- Publication number
- CN203148039U CN203148039U CN 201320055824 CN201320055824U CN203148039U CN 203148039 U CN203148039 U CN 203148039U CN 201320055824 CN201320055824 CN 201320055824 CN 201320055824 U CN201320055824 U CN 201320055824U CN 203148039 U CN203148039 U CN 203148039U
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- heat exchange
- straight tube
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- exchange fin
- heat exchanger
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Abstract
A compact heat exchanger of a gas appliance comprises a water tank casing, a water inlet pipe, a water outlet pipe, 9-17 straight pipes, heat exchange fins, a water diversion box and a water collection box, wherein the heat exchange fins penetrate the straight pipes sequentially in an overlapping mode, the water diversion box and the water collection box are located on the outer side of the water tank casing, two ends of the straight pipes are communicated with the water diversion box and the water collection box respectively, the water inlet pipe is communicated with the water diversion box, the water outlet pipe is communicated with the water collection box, diameters of the straight pipes are within a range of 5-10mm and smaller than the diameter of the water inlet pipe or the water outlet pipe, and heights of the heat exchange fins are within a range of 20-35mm. According to the compact heat exchanger, the structure that the diameters of the straight pipes are reduced, the quantity of the straight pipes is increased and the straight pipes are connected in parallel is adopted, so that on the premise that the heat exchange effect and the water yield of the heat exchanger are guaranteed, the heights of the heat exchange fins are effectively reduced, the material consumption of the heat exchanger is reduced, and the cost is reduced.
Description
Technical field
The utility model belongs to combustion gas tool field, relates in particular to a kind of combustion gas tool compact heat exchanger, mainly is applicable to combustion gas tools such as gas heater, gas-heating water heater.
Background technology
In the prior art, the main flow heat exchanger of domestic gas-fired water heater, according to the different numbers that rises, the water pipe series connection of the general Φ of employing 10 ~ Φ 19 forms double-deck heat exchange water route, as shown in Figure 1, cold water enters water inlet pipe 2, flow through then and be coiled in coil pipe on the water tank shell 1, cold water passes heat exchanging segment at heat exchanger A end through straight tube from the coil pipe outflow and flows to heat exchanger B end, with a U-shaped pipe current heat exchanging segment that turns back is again flowed back to heat exchanger A end through second straight tube at heat exchanger B end, with U-shaped pipe water is returned heat exchanging segment through the straight tube baffling again, repeated multiple times (4 ~ 8 straight tubes are arranged usually) like this, at last with water through the water outlet coil pipe, flow out through outlet pipe 3.Be subjected to structural limitations, this heat exchanger must select for use the bigger straight tube of caliber can guarantee water yield, yet along with the caliber of straight tube increases, (height of heat exchange fin is generally 49 ~ 60mm) to the also corresponding increase of the volume of heat exchange fin at present, cause the heat exchanger overall volume to increase, the increase of heat exchanger volume does not improve heat exchange efficiency, has but consumed more materials, has increased cost.For overcoming above-mentioned technical problem, special heat exchanger to the combustion gas tool improves.
Summary of the invention
Technical problem to be solved in the utility model is that a kind of combustion gas tool compact heat exchanger will be provided, it can be under the prerequisite that guarantees heat exchanger heat exchange effect and water yield, effectively dwindle the height of heat exchange fin, reduce the material consumption of heat exchanger, reduce cost.
The straight tube caliber of heat exchanger directly influences the height of heat exchange fin and the volume of heat exchanger, as long as dwindle the caliber of straight tube, can dwindle the volume of heat exchange fin and heat exchanger, reduces material consumption, reduces cost.Yet big caliber can guarantee water yield, and dwindling of straight tube caliber must directly influence water yield, and the heat exchange fin volume-diminished, also causes the minimizing of heat exchange area.Have the existing heat converter structure of change only, can guarantee heat exchanger heat exchange effect and water yield, and dwindle the height of heat exchange fin, reduce the material consumption of heat exchanger.
Because existing straight tube all is cascaded by U-shaped pipe, the water amount of single straight tube is the water yield of heat exchanger, the size of water yield depends on the straight tube of minimum pipe, if straight tube is connected in parallel instead, then the water yield of heat exchanger equals the summation of each root straight tube water amount, can realize effectively that caliber dwindles and effect that water yield does not subtract so straight tube is arranged in parallel.Yet the straight tube series connection arranges and can make current obtain enough heat exchange strokes, is equivalent to prolong heat-exchange time, and straight tube is arranged in parallel the heat exchange stroke that has shortened current instead, and heat-exchange time is shortened, and this is unfavorable for the current heat exchange.This problem can solve by increasing heat exchange area, because the size of heat exchange fin must be dwindled, having the total heat exchange area that increases straight tube only can increase whole heat exchange area.Because the dwindling of straight tube caliber dwindled the interval between the adjacent straight tube, can make heat exchange fin under the constant situation of length, hold more straight tube, thereby can increase total heat exchange area of straight tube, remedy the problem that current heat exchange stroke and heat-exchange time shorten.
Therefore, the technical scheme that its technical problem that solves the utility model adopts is: it comprises the water tank shell, water inlet pipe, outlet pipe, straight tube and heat exchange fin, the water tank shell surrounds exhaust gases passes, the setting of straight tube array is also crossed exhaust gases passes, heat exchange fin is located in the exhaust gases passes and stacked being through on the straight tube successively, in addition, it also comprises branch water box and collecting box, divide water box and collecting box all to be positioned at the water tank shell outside, the two ends of straight tube are communicated with branch water box and collecting box respectively, water inlet pipe is communicated with dividing the water box, outlet pipe is communicated with collecting box, the diameter of straight tube be the diameter of 5 ~ 10mm and straight tube less than the diameter of water inlet pipe or outlet pipe, the quantity of straight tube is 9 ~ 17, the height of heat exchange fin is 20 ~ 35mm.
Preferably, the diameter of straight tube is 6 ~ 9mm, and the heat exchange fin height is that 22 ~ 26mm and length are 85 ~ 140mm.Further be, the height of heat exchange fin is 24mm, and length is 94.2mm or 109.2mm or 124.2mm, and the diameter of straight tube is 7mm or 8mm, and the quantity of straight tube is 13 or 15 or 17.Rising under the identical prerequisite of number, the length of this heat exchange fin remains unchanged, highly only be original about 1/3 ~ 1/2, effectively dwindled the volume of heat exchange fin, and because the heat exchange zone of heat exchange fin concentrates on the middle and lower part of heat exchange fin, the temperature difference at two ends was big up and down when too high height made heat exchange fin participate in heat exchange, and the contribution degree of heat exchange fin top heat exchanging is not as the heat exchange fin bottom, so short and small structure can fully participate in heat exchange by whole heat exchange fin, can also avoid waste of material.Total heat exchange area of the increase straight tube of straight tube quantity remedies that current heat exchange stroke and heat-exchange time shorten, the heat exchange fin heat exchange area dwindles the influence of heat exchanging effect.
The diameter of described water inlet pipe and outlet pipe is 11 ~ 19mm, obtain enough current inputs to guarantee branch water box and collecting box, and heat exchange can provide enough water yields.
For the heat exchanger of common type, the outer surface of water tank shell is provided with coil pipe, and coil pipe is communicated with water inlet pipe and divides water box or outlet pipe and collecting box, and water tank shell bottom is 150 ~ 190mm with the distance of heat exchange fin bottom.For the heat exchanger of full premix type and bias combustion type, the water tank shell does not have coil pipe, and water tank shell bottom is 18 ~ 35mm with the distance of heat exchange fin bottom, at this moment, owing to need not coil pipe, has further reduced the cost of heat exchanger.
The top of described heat exchange fin is provided with the flange aperture, with the heat exchange effect of further enhanced heat exchange fin.
Described heat exchange fin is provided with the fin flange hole of passing for straight tube, and the flange in fin flange hole arranges adjacent heat exchange fin at interval, forms the flue gas gap.
The bottom of described heat exchange fin is provided with groove between adjacent fins flange hole, the degree of depth of groove is greater than the diameter of straight tube, and the width of groove is 2 ~ 4mm.Being provided with of groove helps save unnecessary material, reduces waste of material, and because the diameter of straight tube is less, and the aperture in fin flange hole is corresponding less, under the prerequisite that guarantees the heat exchange fin mechanical strength, the size of groove can be bigger, can save more material.
Described minute water box and collecting box are symmetrical structure, produce required number of molds to reduce.Both enclose to cover by the sealing of cover and drain pan and form, cover is provided with the cover through hole for water inlet pipe or outlet pipe insertion, drain pan is provided with the drain pan through hole that inserts for straight tube, and water inlet pipe or outlet pipe insert the cover through hole and welding is fixing with it, and straight tube inserts the drain pan through hole and welding is fixing with it.
The utility model is compared the beneficial effect that produces with background technology:
1, because adopting, the utility model dwindles the straight tube diameter, the structure that increases straight tube quantity and straight tube is arranged in parallel, thus under the prerequisite that guarantees heat exchanger heat exchange effect and water yield, effectively dwindle the height of heat exchange fin, reduce the material consumption of heat exchanger, reduce cost.
Description of drawings: Fig. 1 is existing combustion gas tool heat converter structure schematic diagram;
Fig. 2 is structural representation of the present invention;
Fig. 3 is STRUCTURE DECOMPOSITION schematic diagram of the present invention;
Fig. 4 is the structural representation of water tank shell among the present invention;
Fig. 5 is for dividing the structural representation of water box among the present invention;
Fig. 6 is the structural representation of heat exchange fin among the present invention.
The specific embodiment:
As shown in Figures 2 and 3, present embodiment comprises water tank shell 1, water inlet pipe 2, outlet pipe 3, straight tube 4, heat exchange fin 5, divide water box 6 and collecting box 7, water tank shell 1 surrounds exhaust gases passes and straight tube 4 array settings and crosses exhaust gases passes, heat exchange fin 5 is located in the exhaust gases passes and stacked being through on the straight tube 4 successively, divide water box 6 and collecting box 7 for symmetrical structure and lay respectively at water tank shell 1 left and right sides, the two ends of straight tube 4 are communicated with branch water box 6 and collecting box 7 respectively, water inlet pipe 2 is communicated with dividing water box 6, outlet pipe 3 is communicated with collecting box 7, the diameter of straight tube 4 is that the diameter of 5 ~ 10mm and straight tube 4 is less than the diameter of water inlet pipe 2 or outlet pipe 3, the quantity of straight tube 4 is 11 ~ 17, and the height of heat exchange fin 5 is 20 ~ 35mm.Preferably, the diameter of straight tube 4 is 6 ~ 9mm, and the heat exchange fin height is that 22 ~ 26mm and length are 85 ~ 140mm.
As shown in Figure 4, water tank shell 1 both sides are respectively equipped with the water tank shell through hole 11 that passes for straight tube 4.As shown in Figure 5, dividing water box 6 to be enclosed to cover by cover and drain pan sealing forms, cover is provided with the cover through hole 61 that inserts for water inlet pipe 2, drain pan is provided with the drain pan through hole 62 that inserts for straight tube 4, water inlet pipe 2 inserts cover through hole 61 and welding is fixing with it, and straight tube 4 inserts drain pan through hole 62 and welding is fixing with it.Dividing water box 6 and collecting box 7 is symmetrical structure, so similarly, collecting box 7 is also enclosed to cover by cover and drain pan sealing and forms, cover is provided with confesses the cover through hole that water pipe 3 inserts, drain pan is provided with the drain pan through hole that inserts for straight tube 4, outlet pipe 3 inserts the cover through hole and welding is fixing with it, and straight tube 4 inserts the drain pan through hole and welding is fixing with it.
As shown in Figure 6, heat exchange fin 5 is provided with the fin flange hole of passing for straight tube 4 51, and 51 distributions triangular in shape of fin flange hole, and the flange in fin flange hole 51 arranges adjacent heat exchange fin 5 at interval, forms the flue gas gap.The top of heat exchange fin 5 also is provided with for the flange aperture 52 of strengthening the heat exchange effect.The bottom of heat exchange fin 5 is provided with groove 8 between adjacent fins flange hole 51, the degree of depth of groove 8 is greater than the diameter of straight tube 4, and the width of groove 8 is 2 ~ 4mm.
Size and quantity concrete in the present embodiment are: the height of heat exchange fin 5 is 24mm, and length is 94.2mm or 109.2mm or 124.2mm; The diameter of straight tube 4 is 7mm or 8mm, and quantity is 13 or 15 or 17.In addition, the diameter of water inlet pipe 2 and outlet pipe 3 is 11 ~ 19mm; And water tank shell 1 does not have coil pipe, and the distance of water tank shell 1 bottom and heat exchange fin 5 bottoms is 18 ~ 35mm.
The assembling process of present embodiment, shown in accompanying drawing 3:
The first step: heat exchange fin 5 is stacked together successively, and place water tank shell 1 inside, make the straight tube flange through hole 51 on the heat exchange fin 5 corresponding with water tank shell through hole 11 on the water tank shell 1;
Second step: straight tube 4 is passed from water tank shell through hole 11, fin flange hole 51, and welding is the contact-making surface at straight tube 4 and water tank shell 1 two ends fixedly;
The 3rd step: will divide the drain pan through hole of water box 6, collecting box 7 to insert in the straight tube 4, welding is straight tube 4 and the contact-making surface that divides water box 6, collecting box 7 fixedly;
The 4th goes on foot: water inlet pipe 2, outlet pipe 3 are inserted respectively also weld in the cover through hole that divides water box 6, collecting box 7 and fix.
Claims (10)
1. combustion gas tool compact heat exchanger, comprise water tank shell (1), water inlet pipe (2), outlet pipe (3), straight tube (4) and heat exchange fin (5), water tank shell (1) surrounds exhaust gases passes, straight tube (4) array setting is also crossed exhaust gases passes, heat exchange fin (5) is located in the exhaust gases passes and stacked being through on the straight tube (4) successively, it is characterized in that: it also comprises branch water box (6) and collecting box (7), divide water box (6) and collecting box (7) all to be positioned at water tank shell (1) outside, the two ends of straight tube (4) are communicated with branch water box (6) and collecting box (7) respectively, water inlet pipe (2) is communicated with dividing water box (6), outlet pipe (3) is communicated with collecting box (7), the diameter of straight tube (4) is that the diameter of 5 ~ 10mm and straight tube (4) is less than the diameter of water inlet pipe (2) or outlet pipe (3), the quantity of straight tube (4) is 9 ~ 17, and the height of heat exchange fin (5) is 20 ~ 35mm.
2. combustion gas tool compact heat exchanger according to claim 1, it is characterized in that: the diameter of described straight tube (4) is 6 ~ 9mm, heat exchange fin (5) highly is that 22 ~ 26mm and length are 85 ~ 140mm.
3. combustion gas tool compact heat exchanger according to claim 2, it is characterized in that: the height of described heat exchange fin (5) is 24mm, the length of heat exchange fin (5) is 94.2mm or 109.2mm or 124.2mm, the diameter of straight tube (4) is 7mm or 8mm, and the quantity of straight tube (4) is 13 or 15 or 17.
4. according to claim 1 or 2 or 3 described combustion gas tool compact heat exchangers, it is characterized in that: the diameter of described water inlet pipe (2) and outlet pipe (3) is 11 ~ 19mm.
5. according to claim 1 or 2 or 3 described combustion gas tool compact heat exchangers, it is characterized in that: described water tank shell (1) bottom is 18 ~ 35mm with the distance of heat exchange fin (5) bottom.
6. according to claim 1 or 2 or 3 described combustion gas tool compact heat exchangers, it is characterized in that: the outer surface of described water tank shell (1) is provided with coil pipe, coil pipe is communicated with water inlet pipe (2) and divides water box (6) or outlet pipe (3) and collecting box (7), and water tank shell (1) bottom is 150 ~ 190mm with the distance of heat exchange fin (5) bottom.
7. combustion gas tool compact heat exchanger according to claim 1, it is characterized in that: described heat exchange fin (5) is provided with the fin flange hole of passing for straight tube (51), the flange in fin flange hole (51) arranges adjacent heat exchange fin (5) at interval, forms the flue gas gap.
8. combustion gas tool compact heat exchanger according to claim 7, it is characterized in that: the top of described heat exchange fin (5) is provided with flange aperture (52).
9. combustion gas tool compact heat exchanger according to claim 7, it is characterized in that: the bottom of described heat exchange fin (5) is provided with groove (8) between adjacent fins flange hole (51), the degree of depth of groove (8) is greater than the diameter of straight tube (4), and the width of groove (8) is 2 ~ 4mm.
10. according to claim 1,2,3,7,8 or 9 described combustion gas tool compact heat exchangers, it is characterized in that: described minute water box (6) and collecting box (7) are symmetrical structure, and enclose to cover by the sealing of cover and drain pan and form, cover is provided with the cover through hole for water inlet pipe (2) or outlet pipe (3) insertion, drain pan is provided with the drain pan through hole that inserts for straight tube (4), water inlet pipe (2) or outlet pipe (3) insert the cover through hole and welding is fixing with it, and straight tube (4) inserts the drain pan through hole and welding is fixing with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320055824 CN203148039U (en) | 2013-02-01 | 2013-02-01 | Compact heat exchanger of gas appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320055824 CN203148039U (en) | 2013-02-01 | 2013-02-01 | Compact heat exchanger of gas appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203148039U true CN203148039U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320055824 Expired - Lifetime CN203148039U (en) | 2013-02-01 | 2013-02-01 | Compact heat exchanger of gas appliance |
Country Status (1)
| Country | Link |
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| CN (1) | CN203148039U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090543A (en) * | 2013-02-01 | 2013-05-08 | 广东万和新电气股份有限公司 | Gas appliance compact type heat exchanger |
| CN115654731A (en) * | 2022-11-10 | 2023-01-31 | 浙江萨弘科技有限公司 | Gas heating water heater |
-
2013
- 2013-02-01 CN CN 201320055824 patent/CN203148039U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090543A (en) * | 2013-02-01 | 2013-05-08 | 广东万和新电气股份有限公司 | Gas appliance compact type heat exchanger |
| CN103090543B (en) * | 2013-02-01 | 2015-09-16 | 广东万和新电气股份有限公司 | Gas utensil compact heat exchanger |
| CN115654731A (en) * | 2022-11-10 | 2023-01-31 | 浙江萨弘科技有限公司 | Gas heating water heater |
| CN115654731B (en) * | 2022-11-10 | 2023-08-18 | 浙江萨弘科技有限公司 | Gas heating water heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |