CN112050469A - Heat exchange device and gas water heater - Google Patents
Heat exchange device and gas water heater Download PDFInfo
- Publication number
- CN112050469A CN112050469A CN201910487830.4A CN201910487830A CN112050469A CN 112050469 A CN112050469 A CN 112050469A CN 201910487830 A CN201910487830 A CN 201910487830A CN 112050469 A CN112050469 A CN 112050469A
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- Prior art keywords
- heat exchange
- straight pipes
- exchange straight
- exchange device
- elbow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
- F24H1/145—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using fluid fuel
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Fluid Heaters (AREA)
Abstract
The invention discloses a heat exchange device and a gas water heater, wherein the heat exchange device comprises a heat exchange cavity shell and a plurality of heat exchange straight pipes, the heat exchange straight pipes are connected in series through an elbow to form a heat exchange channel, the water inlet end of the heat exchange channel is connected with a water inlet pipe, the water outlet end of the heat exchange channel is connected with a water outlet pipe, the heat exchange straight pipes are horizontally arranged and are at least arranged into two layers along the vertical direction, and the two ends of the elbow are respectively connected with two heat exchange straight pipes positioned on different layers. According to the heat exchange device, the heat exchange straight pipes are arranged into at least two layers in the vertical direction, and two ends of the elbow are respectively connected with the two heat exchange straight pipes positioned on different layers, namely, the elbow which is transversely arranged is not arranged, so that the transverse center distance between the adjacent heat exchange straight pipes positioned on the same layer can be reduced without being limited by the size of the transverse elbow, the transverse length of the heat exchange device can be further shortened, the size of the heat exchange device can be reduced, and the size of the whole gas water heater can be reduced.
Description
Technical Field
The invention belongs to the technical field of hot water making equipment, and particularly relates to a heat exchange device and a gas water heater.
Background
The existing gas water heater is overlarge in size, the larger the rising number of water to be heated is, the larger the volume is, the gas water heater is generally installed in a narrow space of a kitchen, the overlarge in size brings inconvenience, the appearance is not only influenced, but also the valuable space of the kitchen is occupied, and the size of a heat exchange device is the main factor influencing the volume of the gas water heater. The problem of oversize exists in the heat exchange device structure that present gas heater adopted.
Disclosure of Invention
The invention provides a heat exchange device aiming at the technical problem that the size of the heat exchange device of the existing gas water heater is larger, and can solve the problem.
In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:
the heat exchange device comprises a heat exchange cavity shell and a plurality of heat exchange straight pipes, wherein all the heat exchange straight pipes are connected in series through an elbow to form a heat exchange channel, the water inlet end of the heat exchange channel is connected with a water inlet pipe, the water outlet end of the heat exchange channel is connected with a water outlet pipe, the heat exchange straight pipes are horizontally arranged and are at least arranged into two layers in the vertical direction, and the two ends of the elbow are respectively connected with two heat exchange straight pipes located on different layers.
Furthermore, the number of the heat exchange straight pipes is odd, and the water inlet end and the water outlet end are respectively positioned at two opposite sides of the heat exchange cavity shell.
Furthermore, the heat exchange straight pipes of each layer and the heat exchange straight pipes of the adjacent layers are arranged in a staggered mode.
Furthermore, the heat exchange straight pipes on the same layer are positioned on the same horizontal plane.
Further, when the heat exchange straight pipes are horizontally arranged into two layers, the number of the heat exchange straight pipes positioned on the lower layer is larger than that of the heat exchange straight pipes positioned on the upper layer.
Furthermore, the quantity of the heat exchange straight pipes on the lower layer and the quantity of the heat exchange straight pipes on the upper layer are different by 1.
Furthermore, a plurality of heat exchange fins are vertically arranged in the heat exchange cavity shell, pipe penetrating holes are formed in the heat exchange fins, and the heat exchange straight pipes penetrate through the pipe penetrating holes and are in interference fit with the pipe penetrating holes.
Furthermore, the heat exchange cavity shell at least comprises a front plate, a rear plate and two end side plates, the heat exchange straight pipes are arranged along the direction perpendicular to the two end side plates, and the water inlet end and the water outlet end respectively penetrate through the two end side plates.
Further, the elbow is U-shaped.
The invention also provides a gas water heater, which comprises a shell and the heat exchange device described in any one of the above, wherein the water inlet pipe penetrates into the shell from the lower part of the shell and is connected with the water inlet end, and the water outlet pipe penetrates into the shell from the lower part of the shell and is connected with the water outlet end.
Compared with the prior art, the invention has the advantages and positive effects that: according to the heat exchange device, the heat exchange straight pipes are arranged into at least two layers in the vertical direction, and two ends of the elbow are respectively connected with the two heat exchange straight pipes positioned on different layers, namely, the elbow which is transversely arranged is not arranged, so that the transverse center distance between the adjacent heat exchange straight pipes positioned on the same layer can be reduced without being limited by the size of the transverse elbow, the transverse length of the heat exchange device can be further shortened, the size of the heat exchange device can be reduced, and the size of the whole gas water heater can be reduced.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of a gas water heater according to the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a partial perspective view of the heat exchange device of FIG. 1;
FIG. 4 is a schematic view showing the connection between the heat exchange straight pipes and the heat exchange bends of the heat exchange apparatus of FIG. 1;
fig. 5 is a schematic longitudinal sectional view of the heat exchange straight tube of fig. 4.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and examples.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
First embodiment, the gas water heater uses flame combustion to release heat, that is, the fuel and oxygen or air rapidly release heat and emit light, and the oxidation reaction occurs in the form of flame. The heat exchange device is a main configuration for realizing heating of water through energy exchange of the gas water heater, as shown in fig. 1, the gas water heater in the embodiment includes a housing 1 and a heat exchange device 2, the heat exchange device 2 is arranged inside the housing 1, in addition, a fan 3, a combustion chamber 4 and the like are arranged in the housing 1, a fire grate (not shown in the figure for reasons of angle) is arranged in the combustion chamber 4, a gas port of the fire grate is connected with a gas pipe 5, an air valve 6 is arranged in the gas pipe 5, the fan 3 is used for sucking air outside the housing 1 into the combustion chamber 4, the air is mixed with the gas and combusted in the combustion chamber, the generated flame and the heated air can heat a heat exchange pipe in the heat exchange device 2, so as to realize heating of water flowing through the pipe, and as the hot air flows upwards, the heat exchange device 2 is located above the combustion chamber 4, so as to realize, the heat exchange efficiency is improved, because the heat exchange device 2 is arranged inside the shell 1, the volume of the gas water heater is limited by the volume of the heat exchange device 2, in order to reduce the volume of the gas water heater, the embodiment provides a novel heat exchange device which can reduce the volume, as shown in figure 2, the heat exchange device comprises a heat exchange cavity shell 21 and a plurality of heat exchange straight pipes 22, all the heat exchange straight pipes 22 are connected in series through an elbow 23 to form a heat exchange channel, a water inlet end 24 of the heat exchange channel is connected with a water inlet pipe 7, specifically, the water inlet pipe 7 penetrates into the shell 1 from the lower part of the shell 1 to be connected with the water inlet end 24, a water outlet end 25 of the heat exchange channel is connected with a water outlet pipe 8, specifically, the water outlet pipe 8 penetrates into the shell 1 from the lower part of the shell 1 to be connected with a water outlet end 25, the heat exchange straight pipes 22 are horizontally arranged and are arranged into at least two, therefore, the plane of the elbow 23 is disposed along the vertical direction or along the direction slightly inclined to the vertical direction, and preferably, two ends of the elbow 23 are respectively connected to two spatially adjacent heat exchange tubes 22 located at different layers, so that the included angle between the plane of the elbow 23 and the vertical direction is minimized. Two heat exchange tubes located at different layers and spatially adjacent refer to: the distance between the central axes of the two heat exchange tubes is shortest. The heat exchange device of this embodiment, at least arrange into two-layerly along vertical direction through with the heat transfer straight tube, the both ends of elbow are connected with two heat transfer straight tubes that are located the different layers respectively, the elbow place plane sets up along vertical direction or along the direction that is the slope slightly with vertical direction, also, do not have the elbow of transversely laying, make the horizontal centre-to-centre spacing that is located between the adjacent heat transfer straight tube of one deck can not receive the restriction of horizontal elbow size and obtain reducing, and then can shorten the horizontal length of heat exchange device, be favorable to reducing heat exchange device's size, also can reduce whole gas heater's size.
The bend 23 is preferably U-shaped with the openings at both ends being oriented in the same direction.
The heat exchange device in this embodiment is not limited to be used in a gas water heater, and may be used in other devices that use gas to heat or heat water, such as a wall-mounted gas boiler.
Because the water inlet pipe 7 and the water outlet pipe 8 are respectively positioned at two sides of the heat exchange device, if the number of the heat exchange straight pipes 22 is even, the water inlet end 24 and the water outlet end 25 of the heat exchange channel will be positioned at the same side of the heat exchange device, in order to connect the two with the water inlet pipe 7 and the water outlet pipe 8 respectively, the water outlet end 25 needs to be connected with the outer coil pipe, the outer coil pipe is wound around the outer surface of the heat exchange cavity shell 21 for half turn or odd multiple of half turn, the water outlet end 25 is wound around the other end of the heat exchange device to be connected with the water outlet pipe, which will increase the using amount of the coil pipe and improve the material cost, meanwhile, the height of the heat exchange device will be increased by winding the outer coil pipe around the outer surface of the heat exchange cavity shell 21, which is not beneficial to reduce the volume, therefore, the number of the heat exchange straight pipes 22 is preferably odd, after the, therefore, an additional external coil pipe is not needed to be arranged for reversing the water outlet end 25, and the technical problem caused by the arrangement of the external coil pipe can be further avoided.
For the heat exchange straight pipes 22 arranged in multiple layers, the hot air flowing from the combustion chamber 4 firstly passes through the heat exchange straight pipe 22 at the lower layer in the rising process and is shielded by the heat exchange straight pipe 22 at the lower layer, if the heat exchange straight pipe at the upper layer is positioned right above the heat exchange straight pipe 22 at the lower layer, the airflow will not flow through the lower surface of the heat exchange straight pipe at the upper layer, but directly flows upwards from the side surface thereof, which will result in much heat waste, and the heat exchange efficiency of the heat exchange straight pipe at the upper layer is low, therefore, in the embodiment, the heat exchange straight pipes at each layer and the heat exchange straight pipes at the adjacent layers are arranged in a staggered manner, as shown in fig. 5, the hot air firstly passes through the heat exchange straight pipe 22 at the lower layer in the rising process, then continuously rises to act on the lower surface of the heat exchange straight pipe at the upper layer, is blocked by the lower surface, the hot air is firstly contacted with the lower surface of the upper layer heat exchange straight pipe and then contacted with the side surface of the upper layer heat exchange straight pipe, so that the contact area can be increased, and the heat exchange efficiency is improved.
In the embodiment, the heat exchange straight pipes on the same layer are positioned on the same horizontal plane, and the heat exchange straight pipes on different layers are positioned on different horizontal planes. When the heat exchange straight pipes 22 are arranged in more than 2 layers, the two ends of the elbow 23 are preferably respectively connected with two heat exchange pipes of adjacent layers.
Because the gas that is heated by flame is in the in-process heat that rises and is lost gradually, consequently, highly more the lower the temperature, when the heat transfer straight tube level sets up to arrange into two-layer, the quantity that is located the heat transfer straight tube of lower floor is greater than the quantity that is located the heat transfer straight tube of upper strata to guarantee that the heat transfer straight tube is great with high-temperature gas's area of contact, and then improve heat exchange efficiency.
Because the quantity of heat transfer straight tube 22 is odd number, consequently, when the heat transfer straight tube level sets up and arranges into two-layerly, the quantity inequality of the heat exchange tube between two-layerly, in order to realize establishing ties all heat transfer straight tubes 22 mutually according to aforementioned mode, and elbow 23 is horizontal not to be set up, consequently, the quantity that lies in the heat transfer straight tube of lower floor differs 1 with the quantity that lies in the heat transfer straight tube of upper strata.
Vertically in the heat transfer chamber shell 21 be provided with a plurality of heat transfer fins 26, seted up the poling hole on the heat transfer fin 26 (owing to angle reason not shown in the figure), heat transfer straight tube 22 pass the poling hole and with poling hole interference fit, play the effect of supporting heat transfer fin 26 on the one hand, guarantee fin 26 and the abundant in close contact with of heat transfer straight tube 22 on the one hand in addition, guarantee heat transfer to heat transfer straight tube 22 that heat transfer fin 26 absorbed to improve heat exchange efficiency.
The heat exchange cavity shell 21 at least comprises a front plate 211, a rear plate 212 and two end side plates 213, the heat exchange straight pipe 22 is arranged along the direction perpendicular to the two end side plates 213, and the water inlet end 24 and the water outlet end 25 respectively penetrate through the two end side plates 213, so that the water inlet pipe 7 and the water outlet pipe 8 positioned on two sides can be conveniently connected.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (10)
1. The utility model provides a heat exchange device, includes heat transfer chamber shell and a plurality of heat transfer straight tubes, its characterized in that:
the heat exchange straight pipes are connected in series through the elbows to form a heat exchange channel, the water inlet end of the heat exchange channel is connected with the water inlet pipe, the water outlet end of the heat exchange channel is connected with the water outlet pipe, the heat exchange straight pipes are horizontally arranged and are at least arranged into two layers in the vertical direction, and the two ends of the elbows are respectively connected with the two heat exchange straight pipes on different layers.
2. The heat exchange device of claim 1, wherein: the number of the heat exchange straight pipes is odd, and the water inlet end and the water outlet end are respectively positioned on two opposite sides of the heat exchange cavity shell.
3. The heat exchange device of claim 1, wherein: the heat exchange straight pipes of each layer and the heat exchange straight pipes of the adjacent layers are distributed in a staggered mode.
4. A unit according to claim 3 in which: the heat exchange straight pipes on the same layer are positioned on the same horizontal plane.
5. A unit according to claim 3 in which: when the heat exchange straight pipes are horizontally arranged into two layers, the number of the heat exchange straight pipes positioned on the lower layer is larger than that of the heat exchange straight pipes positioned on the upper layer.
6. The heat exchange device of claim 5, wherein: the quantity of the heat exchange straight pipes on the lower layer and the quantity of the heat exchange straight pipes on the upper layer are different by 1.
7. A heat exchange unit according to any one of claims 1 to 6, in which: a plurality of heat exchange fins are vertically arranged in the heat exchange cavity shell, pipe penetrating holes are formed in the heat exchange fins, and the heat exchange straight pipes penetrate through the pipe penetrating holes and are in interference fit with the pipe penetrating holes.
8. A heat exchange unit according to any one of claims 1 to 6, in which: the heat exchange cavity shell at least comprises a front plate, a rear plate and two end side plates, the heat exchange straight pipes are arranged along the direction perpendicular to the two end side plates, and the water inlet end and the water outlet end penetrate through the two end side plates respectively.
9. A heat exchange unit according to any one of claims 1 to 6, in which: the elbow is U-shaped.
10. A gas water heater, includes shell, its characterized in that: the heat exchange unit of any one of claims 1 to 9 further comprising an inlet tube passing from below the housing into the housing to connect with the inlet end and an outlet tube passing from below the housing into the housing to connect with the outlet end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910487830.4A CN112050469A (en) | 2019-06-05 | 2019-06-05 | Heat exchange device and gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910487830.4A CN112050469A (en) | 2019-06-05 | 2019-06-05 | Heat exchange device and gas water heater |
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| Publication Number | Publication Date |
|---|---|
| CN112050469A true CN112050469A (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910487830.4A Pending CN112050469A (en) | 2019-06-05 | 2019-06-05 | Heat exchange device and gas water heater |
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| CN (1) | CN112050469A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022214067A1 (en) * | 2021-04-09 | 2022-10-13 | 中国石油化工股份有限公司 | Cooling coil set, method for increasing reaction load, and method for preparing unsaturated nitrile |
| CN115337871A (en) * | 2021-04-09 | 2022-11-15 | 中国石油化工股份有限公司 | Heat removal water pipe, fluidized bed reactor and application of fluidized bed reactor in acrylonitrile manufacture |
-
2019
- 2019-06-05 CN CN201910487830.4A patent/CN112050469A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022214067A1 (en) * | 2021-04-09 | 2022-10-13 | 中国石油化工股份有限公司 | Cooling coil set, method for increasing reaction load, and method for preparing unsaturated nitrile |
| CN115337871A (en) * | 2021-04-09 | 2022-11-15 | 中国石油化工股份有限公司 | Heat removal water pipe, fluidized bed reactor and application of fluidized bed reactor in acrylonitrile manufacture |
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