CN111121520A - Fin-free heat exchanger and condensate water collecting and discharging structure - Google Patents
Fin-free heat exchanger and condensate water collecting and discharging structure Download PDFInfo
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- CN111121520A CN111121520A CN202010048510.1A CN202010048510A CN111121520A CN 111121520 A CN111121520 A CN 111121520A CN 202010048510 A CN202010048510 A CN 202010048510A CN 111121520 A CN111121520 A CN 111121520A
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- heat exchange
- exchange tube
- condensed water
- tube body
- heat exchanger
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 144
- 238000007599 discharging Methods 0.000 title claims abstract description 20
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 9
- 238000002485 combustion reaction Methods 0.000 claims description 33
- 230000003472 neutralizing effect Effects 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 8
- 229910000679 solder Inorganic materials 0.000 claims description 4
- 238000005476 soldering Methods 0.000 abstract description 6
- 238000009833 condensation Methods 0.000 abstract description 3
- 230000005494 condensation Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F17/00—Removing ice or water from heat-exchange apparatus
- F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The invention discloses a finned-free heat exchanger and a condensate water collecting and discharging structure. The condensation water collecting device is arranged below the heat exchange tube, the groove is a groove with a V-shaped cross section, and can be connected with the heat exchange tube body through nickel soldering paste coated in the groove and also can be formed by flanging the lower end of the heat exchange tube body to two sides.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of household gas quick water heaters and gas heating water heaters, in particular to a finned heat exchanger and a condensate water collecting and discharging structure.
[ background of the invention ]
In the prior art, a heat exchange device adopted by a household gas instantaneous water heater and a gas heating water heater comprises a combustion chamber with an upper opening and a lower opening and a heat exchange tube bundle; the heat exchange tubes on the heat exchange tube bundle are not provided with fins for heat exchange; during the use, the combustor sets up in the combustion chamber of heat exchange tube bank lower part, because heat exchange tube bottom and top are heated inhomogeneous and the back that stops the burning when starting the burning, the heat exchange tube gathers the cooling suddenly, and the condensation water that produces on the heat exchange tube drips the fire hole of combustor, influences the stability of flame, leads to the burning operating mode variation.
In order to solve the problems, the heat exchange tubes in the market adopt a fin heat absorption mode to solve condensed water, but the processing process is complex, the assembly is time-consuming and labor-consuming, and the processing efficiency is low; in addition, in order to improve the heat transfer effect, a large number of multi-spot welding processes are adopted, so that insufficient welding or desoldering of welding points on the fins is easily caused, and the phenomenon that the surface of the heat exchange tube is blackened and scalded due to local uneven heating is caused.
Accordingly, the present invention is based on the above disadvantages.
[ summary of the invention ]
The technical problem to be solved by the invention is to provide a finned-free heat exchanger and a condensate water collecting and discharging structure, which can collect and discharge water drops generated on the heat exchange pipe, prevent the water drops from dropping to a combustor and improve the stability of flame.
In order to solve the technical problems, the invention adopts the following technical scheme: the finned-free heat exchanger is characterized by comprising a heat exchange tube body, wherein a condensed water collecting device for collecting condensed water dripping on the heat exchange tube body is arranged on the lower side of the heat exchange tube body.
The finless heat exchanger is characterized in that the condensed water collecting device is a groove which is arranged at the lower side of the heat exchange tube body and is used for collecting condensed water.
The finless heat exchanger as described above is characterized in that the condensed water collecting means is bonded to the lower end of the heat exchange tube body by a nickel solder paste applied in the grooves.
The finless heat exchanger is characterized in that the condensed water collecting device is formed by flanging the lower end of the heat exchange tube body towards the left side and the right side respectively.
The finless heat exchanger is characterized in that the length of the bottom of the groove is equal to that of the heat exchange tube body, and the length of the upper end of the groove is smaller than that of the heat exchange tube body.
The finless heat exchanger as described above characterised in that the grooves are V-shaped grooves in cross-section.
The application also provides a no fin type heat exchanger heat exchange tube comdenstion water is collected and is discharged structure, its characterized in that, including the combustion chamber, be provided with no fin type heat exchanger in the combustion chamber, no fin type heat exchanger is including the heat exchange tube body, heat exchange tube body below be provided with the comdenstion water collection device who is used for collecting the comdenstion water that drips on the heat exchange tube body.
The structure for collecting and discharging the condensed water of the heat exchange tube of the finless heat exchanger is characterized in that the condensed water collecting device is a groove which is arranged at the lower side of the heat exchange tube body and used for collecting the condensed water, the length of the bottom of the groove is equal to that of the heat exchange tube body, and the length of the upper end of the groove is smaller than that of the heat exchange tube body.
The structure for collecting and discharging the condensed water of the heat exchange tube of the finless heat exchanger is characterized by also comprising a condensed water discharging device communicated with the condensed water collecting device; the condensed water discharge device comprises a water tank which is arranged at the bottom of the combustion chamber and is used for collecting condensed water which flows out of the condensed water collection device and flows down along the wall in the combustion chamber, and the condensed water discharge device also comprises a water guide pipe which is communicated with the water tank and extends downwards, and the lower end of the water guide pipe is connected with a condensed water neutralization device which can neutralize the acidity of the condensed water.
The condensed water collecting and discharging structure of the heat exchange tube of the finless heat exchanger is characterized in that the condensed water neutralizing device comprises a neutralizing box body which is provided with a water inlet tube and a water outlet tube and can change the flowing direction of the condensed water, and alkaline material particles and a screen are arranged in the neutralizing box body.
Compared with the prior art, the finned heat exchanger and the condensate water collecting and discharging structure achieve the following effects:
1. the invention has simple manufacturing process and low manufacturing cost:
compare the mode that the heat exchange tube adopted the fin heat absorption mode to solve the comdenstion water on the market, this scheme adopts and sets up the comdenstion water collection device in the heat exchange tube below, and the recess adopts V-arrangement cross-section recess, can be through scribbling the nickel soldering paste of putting in the recess and this body coupling of heat exchange tube, also can form to both sides turn-ups through the lower extreme of heat exchange tube body, has low in manufacturing cost, and processing is simple and easy, efficient advantage.
2. The problem that condensed water drips on a combustor is solved:
compared with a heat exchange tube adopting a fin heat absorption mode, the groove collection of the structure is simpler and easier, and the difficult problem that the combustion working condition is worsened because the heat conductivity coefficient of stainless steel is low, condensed water is easy to generate and drops to a burner fire hole is effectively solved.
3. The energy efficiency is improved:
because of V-arrangement recess and heat exchange tube body zonulae occludens together, can absorb the heat in the flue gas, transduce to the heat exchange tube body on, the comdenstion water that the cold junction surface produced in heat exchange tube body top simultaneously produces and is replaced for the heat and appear because of receiving high temperature flue gas gasification when flowing down along the heat exchange tube body, and the heat of its appearing is absorbed again, also conducts recess and heat exchange tube body on, has promoted the heat absorption effect of heat exchange tube body once more for this structure is compared and is adopted the endothermic heat exchanger efficiency of fin higher.
[ description of the drawings ]
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:
FIG. 1 is a schematic front view of a finless heat exchanger of the present invention;
FIG. 2 is a side view of the groove of the flat heat exchange tube body of the present invention;
FIG. 3 is a side view of a groove of another flat heat exchange tube body of the present invention;
fig. 4 is a side view of the groove of the round heat exchange tube body of the present invention;
FIG. 5 is a side view of another round heat exchange tube body groove of the present invention;
fig. 6 is a structural view of a condensate water collecting and discharging structure of a heat exchange tube of a finless heat exchanger according to the present invention.
[ detailed description ] embodiments
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1, 2 and 4, a finless heat exchanger 1 comprises a heat exchange tube body 11, and a condensed water collecting device 12 for collecting condensed water dripping on the heat exchange tube body 11 is arranged at the lower side of the heat exchange tube body 11. Compare the mode that the heat exchange tube adopted the fin heat absorption mode to solve the comdenstion water on the market, this scheme adopts and sets up comdenstion water collection device in the heat exchange tube below, has low in manufacturing cost, and processing is simple and easy, advantage that production efficiency is high. The most general heat exchanger is used to achieve the energy efficiency of level 1, the cost of the secondary condenser is saved, and the energy-saving and low-carbon heat exchanger corresponds to the low-carbon energy-saving advocated by the state.
As shown in fig. 1, 2 and 4, the condensed water collecting device 12 is a groove provided at the lower side of the heat exchange tube body 11 for collecting condensed water, so as to collect the condensed water.
As shown in fig. 1, 2 and 4, the condensed water collecting device 12 is bonded to the lower end of the heat exchange tube body 11 through the nickel solder paste coated in the groove, and at this time, the section of the groove on the condensed water collecting device is a V-shaped groove, so that the bonding effect of the nickel solder paste after being melted at high temperature is the most firm; the condensed water collecting device is adhered with the heat exchange tube by coating the nickel soldering paste on the inner surface of the V-shaped groove, and then the nickel soldering paste is melted by heat treatment of a high-temperature furnace at 1200 ℃, so that the V-shaped groove and the heat exchange tube are tightly connected together, and the phenomena of blackening and scalding of the surface caused by uneven local heating of the heat exchange tube due to insufficient soldering or desoldering of a welding spot during welding are avoided.
As shown in fig. 1, 2 and 4, the length of the bottom of the groove is equal to that of the heat exchange tube body 11, and the length of the upper end of the groove is less than that of the heat exchange tube body 11. The both ends of recess can form the breach like this, collect the comdenstion water in the recess after, the breach outflow at recess both ends can be followed to the comdenstion water.
As shown in fig. 1, 2 and 4, the cross section of the heat exchange tube body 11 has a flat shape or a circular shape; both shapes may be provided with condensate collecting means.
Example two
As shown in fig. 1, 3 and 5, in the present embodiment, a finless heat exchanger 1 comprises a heat exchange tube body 11, and a condensed water collecting device 12 for collecting condensed water dripping on the heat exchange tube body 11 is arranged at the lower side of the heat exchange tube body 11. Compare the mode that the heat exchange tube adopted the fin heat absorption mode to solve the comdenstion water on the market, this scheme adopts and sets up comdenstion water collection device in the heat exchange tube below, has low in manufacturing cost, and processing is simple and easy, advantage that production efficiency is high. The most general heat exchanger is used to achieve the energy efficiency of level 1, the cost of the secondary condenser is saved, and the energy-saving and low-carbon heat exchanger corresponds to the low-carbon energy-saving advocated by the state.
As shown in fig. 1, 3 and 5, in the present embodiment, the condensed water collecting means 12 is a groove provided at the lower side of the heat exchange tube body 11 for collecting condensed water; convenient for collecting condensed water.
As shown in fig. 1, 3 and 5, in the present embodiment, the condensed water collecting device 12 is formed by flanging the lower end of the heat exchange tube body 11 to the left and right sides, respectively, and the cross section of the groove is V-shaped, so that two V-shaped grooves form a W-shaped groove; condensed water can be collected in the two grooves, and the processing is convenient.
As shown in fig. 1, 3 and 5, in the present embodiment, the groove bottom length of the groove is equal to the length of the heat exchange tube body 11, and the upper end length of the groove is smaller than the length of the heat exchange tube body 11. The both ends of recess can form the breach like this, collect the comdenstion water in the recess after, the breach outflow at recess both ends can be followed to the comdenstion water.
As shown in fig. 1, 3 and 5, in the present embodiment, the cross section of the heat exchange tube body 11 has a flat shape or a circular shape; both shapes may be provided with condensate collecting means.
EXAMPLE III
As shown in fig. 1 to 6, a structure for collecting and discharging condensed water of a heat exchange tube of a finless heat exchanger comprises a combustion chamber 2, a finless heat exchanger 1 is arranged in the combustion chamber 2, the finless heat exchanger 1 comprises a heat exchange tube body 11, and a condensed water collecting device 12 for collecting condensed water dropping from the heat exchange tube body 11 is arranged below the heat exchange tube body 11. The heating device is arranged in the combustion chamber and below the finless heat exchanger, and condensed water generated on the finless heat exchanger is collected by the condensed water collecting device, so that water drops are prevented from dropping into the heating device, and the stability of flame is ensured.
As shown in fig. 1 to 6, the condensed water collecting device 12 is a groove provided at the lower side of the heat exchange tube body 11 and used for collecting condensed water, the length of the groove bottom is equal to that of the heat exchange tube body 11, and the length of the groove upper end is smaller than that of the heat exchange tube body 11. Therefore, openings are formed in the side faces of the two ends of the groove, so that water in the groove can flow out from the openings formed in the two ends of the groove, and the phenomenon that the combustion effect is influenced by excessive overflow of the water in the groove is avoided.
As shown in fig. 1 to 6, a condensed water discharging device 3 communicated with the condensed water collecting device 12 is further included; the condensed water discharging device 3 comprises a water tank 31 which is arranged at the bottom of the combustion chamber 2 and is used for collecting condensed water which flows out of the condensed water collecting device 12 and flows down along the inner wall of the combustion chamber 1, and the water tank is arranged around the inner side of the bottom of the combustion chamber; the condensed water discharging device 3 further includes a water guide pipe 32 communicated with the water tank 31 and extending downward, and a condensed water neutralizing device 33 capable of neutralizing acidity of the condensed water is connected to a lower end of the water guide pipe 32. Acidic substances exist in the condensed water, and can be discharged out of the ground surface after being neutralized by the condensed water neutralizing device, so that the environment is not polluted.
As shown in fig. 1 to 6, the condensate neutralizing device 33 includes a neutralizing box 333 having an inlet pipe 331 and an outlet pipe 332 and capable of changing a flow direction of condensate, and the neutralizing box 333 is provided with an alkali material particle 334 and a mesh 335.
The periphery of the bottom of the combustion chamber is provided with an annular water tank, the periphery of the lower part of the combustion chamber can be turned into an I shape, four corners are cut, a nickel soldering paste is coated at a joint, and then the periphery of the bottom of the combustion chamber is made into 1 square water tank through heat treatment of a high-temperature furnace at 1200 ℃. The water tank can also be formed by connecting the water tank to the bottom of a combustion chamber through separate processing and welding, and the burner is arranged in the combustion chamber below the heat exchange tube. A hole is formed in the inner wall of the right side of the water tank, a 7-shaped water guide pipe facing downwards is installed, and the inner diameter of the water guide pipe is 13 mm; a silicone tube is connected below the water guide pipe; a condensed water neutralizing device is connected below the silicone tube, alkaline material particles are placed in the neutralizing box body, and the alkaline material particles and the acidic condensed water are neutralized; the design of neutralization box body can let the comdenstion water flow to the box bottom, and the limit flows to the left, and the granule that fills up alkaline material flows through upward flowing again, and after the granule of alkaline material was soaked in the comdenstion water comprehensively, from the top flow left, the box of neutralizing that flows out downwards again folds. The design scheme of the neutralization box takes the anti-siphon principle into consideration, so that condensed water cannot flow back into the combustion chamber.
When the water heater or the heating stove is normally ignited and combusted, as the bottom and the top of the heat exchange tube are heated unevenly and the combustion is stopped, the condensate water produced by dripping on the heat exchange tube is rapidly condensed and cooled, and is collected into the V-shaped groove. Most of the condensed water generated during normal combustion is gasified by high temperature generated by combustion, and directly changed into water vapor to be discharged to the atmosphere along with the flue gas. After medium load (medium fire combustion) or small load (small fire combustion) and combustion stop, condensed water generated by sharp condensation and cooling on the heat exchange tube body is collected by a condensed water collecting device, flows to water grooves which are formed on the periphery of the bottom of the combustion chamber along the left and right inner walls of the combustion chamber from the left and right sides of an V, W-shaped groove, flows out of the combustion chamber through a water guide pipe, then flows into a neutralizing box body with alkaline material particles through a condensed water neutralizing box body by using a silicon rubber pipe, separates and blocks the alkaline material particles by using a screen in the neutralizing box body, neutralizes the acidic condensed water and the alkaline material particles in the neutralizing box body, has a pH value in a range of 6.5-8.5, meets the requirement of a discharge standard, flows out through a water outlet pipe of the condensed water neutralizing box body, is led out through the silicon rubber pipe, and can be discharged to the.
The above examples are only for illustrating the technical solutions of the present invention, and are not meant to limit the present invention, and the technical solutions that achieve the objects of the present invention by substantially the same means are within the protection scope of the present invention.
Claims (10)
1. The finless heat exchanger (1) is characterized by comprising a heat exchange tube body (11), wherein a condensed water collecting device (12) for collecting condensed water dripping on the heat exchange tube body (11) is arranged on the lower side of the heat exchange tube body (11).
2. A finless heat exchanger as claimed in claim 1 wherein the condensate collecting means (12) is a groove provided in the underside of the tube body (11) for collecting condensate.
3. A finless heat exchanger according to claim 2 characterised in that the condensate collecting means (12) is bonded to the lower end of the heat exchange tube body (11) by means of a nickel solder paste applied in the grooves.
4. The finless heat exchanger as claimed in claim 2 wherein the condensate water collecting means (12) is formed by flanging the lower end of the tube body (11) to the left and right sides, respectively.
5. A finless heat exchanger as claimed in claim 2 wherein the groove has a groove bottom length equal to the length of the heat exchange tube body (11) and an upper end length less than the length of the heat exchange tube body (11).
6. The finless heat exchanger of claim 2 wherein the grooves are V-shaped grooves in cross-section.
7. The condensed water collecting and discharging structure of the heat exchange tube of the finned-free heat exchanger is characterized by comprising a combustion chamber (2), wherein the combustion chamber (2) is internally provided with the finned-free heat exchanger (1), the finned-free heat exchanger (1) comprises a heat exchange tube body (11), and a condensed water collecting device (12) for collecting condensed water dripping on the heat exchange tube body (11) is arranged below the heat exchange tube body (11).
8. The finless heat exchanger tube condensate collecting and discharging structure as claimed in claim 7, wherein the condensate collecting means (12) is a groove provided on the underside of the heat exchange tube body (11) for collecting condensate, the groove having a bottom length equal to the length of the heat exchange tube body (11) and an upper end length smaller than the length of the heat exchange tube body (11).
9. The finless heat exchanger heat exchange tube condensate water collecting and discharging structure as claimed in claim 7, further comprising a condensate water discharging means (3) communicating with the condensate water collecting means (12); the condensed water discharge device (3) comprises a water tank (31) which is arranged at the bottom of the combustion chamber (2) and is used for collecting condensed water which flows out of the condensed water collecting device (12) and flows down along the inner wall of the combustion chamber (1), the condensed water discharge device (3) further comprises a water guide pipe (32) which is communicated with the water tank (31) and extends downwards, and the lower end of the water guide pipe (32) is connected with a condensed water neutralizing device (33) which can neutralize the acidity of the condensed water.
10. The heat exchange tube condensed water collecting and discharging structure of a finless heat exchanger as claimed in claim 9, wherein the condensed water neutralizing means (33) comprises a neutralizing box body (333) having an inlet tube (331) and an outlet tube (332) and capable of changing the direction of the condensed water flowing therethrough, and alkaline material particles (334) and a mesh (335) are provided in the neutralizing box body (333).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010048510.1A CN111121520A (en) | 2020-01-16 | 2020-01-16 | Fin-free heat exchanger and condensate water collecting and discharging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010048510.1A CN111121520A (en) | 2020-01-16 | 2020-01-16 | Fin-free heat exchanger and condensate water collecting and discharging structure |
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| Publication Number | Publication Date |
|---|---|
| CN111121520A true CN111121520A (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010048510.1A Pending CN111121520A (en) | 2020-01-16 | 2020-01-16 | Fin-free heat exchanger and condensate water collecting and discharging structure |
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| CN109282496A (en) * | 2018-10-18 | 2019-01-29 | 高月云 | A kind of latent heat type heat exchanger and water heater |
| CN211855019U (en) * | 2020-01-16 | 2020-11-03 | 李炯添 | Fin-free heat exchanger and condensate water collecting and discharging device |
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