CN111219875B - Heat exchanger and gas water heater with same - Google Patents
Heat exchanger and gas water heater with same Download PDFInfo
- Publication number
- CN111219875B CN111219875B CN201811416848.7A CN201811416848A CN111219875B CN 111219875 B CN111219875 B CN 111219875B CN 201811416848 A CN201811416848 A CN 201811416848A CN 111219875 B CN111219875 B CN 111219875B
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- China
- Prior art keywords
- heat exchange
- heat exchanger
- heat
- box body
- water heater
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Classifications
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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
- 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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- 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
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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
- F24H9/14—Arrangements for connecting different sections, e.g. in water heaters
- F24H9/146—Connecting elements of a heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F5/00—Elements specially adapted for movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
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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)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a heat exchanger, includes heat transfer box and heat exchange tube, aforementioned heat exchange tube has the heat transfer section that is located the heat transfer box, its characterized in that the guiding hole that supplies the heat transfer section to reciprocate is all seted up to heat transfer box both sides, the heat transfer box on be equipped with elevating system and with the drive support of elevating system drive connection, this drive support can drive the relative heat transfer box of aforementioned heat transfer section internal reciprocating under elevating system's effect. The application also discloses a gas water heater. The heat exchange section can be lifted according to the combustion load and the set temperature, and the temperature difference between the inside and the outside of the heat exchange pipe is improved, so that the heat exchange efficiency and the safe heat exchange are improved.
Description
Technical Field
The invention relates to a component of a gas water heater, in particular to a heat exchanger applied to the gas water heater or a dual-purpose furnace, and also relates to the gas water heater.
Background
The gas water heater has the characteristics of high hot water outlet speed, good constant temperature performance, high efficiency, energy conservation and the like, and is popular with more and more families in modern life. The gas water heater mainly comprises three systems: water route system, gas circuit system and electric control system. Wherein the waterway system comprises a heat exchanger and a water inlet joint and a water outlet joint.
The heat exchanger is arranged above the burner and generally comprises a box body, a water inlet pipe, a water outlet pipe, a heat exchange pipe and heat exchange fins, wherein the heat exchange pipe is arranged in the box body, two ends of the heat exchange pipe are respectively connected with the water inlet pipe and the water outlet pipe, and a plurality of heat exchange fins are sequentially overlapped and penetrate through the straight section of the heat exchange pipe. The related documents can refer to a Chinese utility model patent with a patent number ZL201420537066.X, a heat exchanger and a gas water heater with the heat exchanger (with an authorization publication number CN 204100858U); reference may also be made to the heat exchanger of a gas water heater of the chinese utility model patent No. ZL201120181521.3 (publication No. CN 202083118U).
The heat exchange tube is fixed at the internal position of box among the current heat exchanger, however in the actual work, when being in low section position miniwatt burning, flue gas temperature and flame height are low on the low side, and the heat transfer is not abundant, and when being in high section position miniwatt burning, flue gas temperature and flame height are high on the high side, and heat transfer fin and heat exchange tube are burnt through easily, shorten life. Therefore, the position of the heat exchange tube can be considered to be correspondingly changed under different states, so that the best combustion effect can be achieved without damaging the heat exchange tube.
Disclosure of Invention
The present invention is directed to provide a heat exchanger with an integrally liftable heat exchange tube, in view of the above technical situation.
The invention provides a gas water heater with an integral lifting heat exchange pipe, aiming at the technical situation.
The technical scheme adopted by the invention for solving the technical problems is as follows: a heat exchanger comprises a heat exchange box body and a heat exchange tube, wherein the heat exchange tube is provided with a heat exchange section positioned in the heat exchange box body, and is characterized in that guide holes for the heat exchange section to move up and down are formed in two sides of the heat exchange box body, a lifting mechanism and a transmission support in driving connection with the lifting mechanism are arranged on the heat exchange box body, the transmission support can drive the heat exchange section to move up and down relative to the heat exchange box body under the action of the lifting mechanism, a nut is arranged on one side of the transmission support, the lifting mechanism comprises a motor, an output gear, a rotating shaft, a worm gear and a worm, the output gear is arranged on a power output end of the motor and is in meshing transmission with gear teeth on the rotating shaft, a first conical gear is arranged at the end part of the rotating shaft, the worm gear is in meshing transmission with the worm, and the worm gear is coaxially connected with a second conical gear in meshing transmission with the first conical gear, the worm is rotationally engaged with the nut.
Furthermore, the water inlet end and the water outlet end of the heat exchange tube are both provided with a lifting joint or a tube section capable of self-extending and retracting.
Preferably, the lifting joint comprises an upper joint and a lower joint, the upper end of the upper joint is connected with the heat exchange pipe, the lower end of the upper joint is telescopically arranged on a connecting port of the lower joint, and a sealing ring is arranged on the connecting port.
Furthermore, the two transmission supports are respectively arranged on the outer walls of the two sides of the heat exchange box body, and the transmission supports are provided with mounting holes or mounting grooves for the heat exchange sections to be arranged.
Furthermore, a plurality of heat exchange sheets are arranged on the heat exchange section.
A gas water heater of a heat exchanger comprises a burner and the heat exchanger, wherein the burner and the heat exchanger are arranged in a machine body, and the burner is positioned below the heat exchanger.
An upper suction type fan is arranged above the heat exchanger. The upper suction type fan is arranged at the top of the machine body, and air is sucked into the water heater from the periphery of the water heater to be combusted, and the requirement on the sealing performance of the water heater in the design and manufacturing process is lower than that of a lower drum type hot gas water heater.
Compared with the prior art, the invention has the advantages that: when the water heater works under the condition of low-stage low power, the lifting mechanism drives the heat exchange section to move down integrally, so that high-efficiency heat exchange is realized; when the water heater works under the condition of high-level and high-power, the lifting mechanism drives the heat exchange section to move upwards integrally, and safe heat exchange is realized. The temperature difference between the inside and the outside of the heat exchange pipe is improved to improve the heat exchange efficiency.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment.
Fig. 2 is a schematic structural diagram of the heat exchange box in fig. 1.
Fig. 3 is an enlarged cross-sectional view of the lift sub of fig. 1.
Fig. 4 is an enlarged view of the heat exchange box and the heat exchange fins in fig. 1.
FIG. 5 is a reference diagram of the usage status of the embodiment.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 4, a heat exchanger 10 in this embodiment includes a heat exchange box 2, a heat exchange tube 1 and a lifting mechanism 3, the heat exchange tube 1 has a heat exchange section 11 located in the heat exchange box 2, and the heat exchange section 11 is provided with a plurality of heat exchange fins 13.
The two sides of the heat exchange box body 2 are provided with guide holes 21 for the heat exchange section 11 to move up and down, the heat exchange box body 2 is provided with a lifting mechanism 3 and a transmission bracket 5 in driving connection with the lifting mechanism 3, and the transmission bracket 5 can drive the heat exchange section 11 to move up and down relative to the heat exchange box body 2 under the action of the lifting mechanism 3. One side of the transmission bracket 5 is provided with a nut 38.
Both the water inlet end and the water outlet end of the heat exchange tube 1 are provided with a lifting joint 12, as shown in fig. 3, the lifting joint 12 in this embodiment includes an upper joint 121 and a lower joint 122, the upper end of the upper joint 121 is connected with the heat exchange tube 1, the lower end of the upper joint is telescopically arranged on a connection port of the lower joint 122, and a sealing ring 123 is arranged on the connection port.
Referring to fig. 4, the lifting mechanism 3 in this embodiment includes a motor 31, an output gear 32, a rotating shaft 34, a worm wheel 36 and a worm 37, the output gear 32 is disposed on a power output end of the motor 31 and is in meshing transmission with the gear teeth 33 on the rotating shaft 34, the end of the rotating shaft 34 is provided with a first bevel gear 35, the worm wheel 36 is in meshing transmission with the worm 37, the worm wheel 36 is coaxially connected with a second bevel gear 39 in meshing transmission with the first bevel gear 35, and the worm 37 is in rotating fit with a nut 38.
The two transmission supports 5 are respectively arranged on the outer walls of the two sides of the heat exchange box body 2, and the transmission supports 5 are provided with mounting holes 63 for the heat exchange sections 11 to be arranged.
When the motor 31 is started, the output gear 32 drives the rotating shaft 34 to rotate, the rotating shaft 34 drives the worm wheel 36 to rotate through the cooperation of the bevel gear, the worm wheel 36 drives the worm 37, and the worm 37 drives the nut 38 to move up and down, so that the transmission bracket 5 drives the heat exchange section 11 to move on the strip-shaped hole 21.
As shown in fig. 5, the gas water heater includes a burner 101 and a heat exchanger 10, in which a body 100 is provided in the body 100, and the burner 101 is located below the heat exchanger 10. An upper suction type fan 102 is arranged above the heat exchanger 101. When assembled, the first fixed pulley 35 and the second fixed pulley 36 are rotatably provided in the body 100.
The upper extraction fan 102 is arranged on the top of the machine body 100, and air is sucked into the water heater from the periphery of the water heater for combustion, and the requirement on the sealing performance of the water heater in the design and manufacturing process is lower than that of a lower drum type hot gas water heater.
Of course, the heat exchanger 10 of the present embodiment may also be applied to a dual-purpose furnace.
When the water heater works under the low-level low-power condition, the flue gas temperature and the flame height are both low, and in order to improve the temperature difference between the inner side and the outer side of the water pipe, the lifting mechanism drives the heat exchange section to move downwards integrally, so that high-efficiency heat exchange is realized; when the water heater works under the condition of high-level and high power, the flue gas temperature and the flame height are both higher, and in order to prevent the heat exchange section from being burnt through, the lifting mechanism drives the heat exchange section to move upwards integrally, so that safe heat exchange is realized. The heat exchanger can be lifted according to the combustion load and the set temperature, so that the temperature difference between the inside and the outside of the heat exchange pipe is improved, and the heat exchange efficiency is improved.
Claims (6)
1. A heat exchanger comprises a heat exchange box body (2) and a heat exchange tube (1), wherein the heat exchange tube (1) is provided with a heat exchange section (11) which is positioned in the heat exchange box body (2), and the heat exchange tube is characterized in that two sides of the heat exchange box body (2) are respectively provided with a guide hole (21) for the heat exchange section (11) to move up and down, the heat exchange box body (2) is provided with a lifting mechanism (3) and a transmission support (5) which is in driving connection with the lifting mechanism (3), the transmission support (5) can drive the heat exchange section (11) to move up and down relative to the heat exchange box body (2) under the action of the lifting mechanism (3), one side of the transmission support (5) is provided with a nut (38), the lifting mechanism (3) comprises a motor (31), an output gear (32), a rotating shaft (34), a worm wheel (36) and a worm (37), the output gear (32) is arranged on the power output end of the motor (31) and is meshed with gear teeth (33) on the rotating shaft (34), a first conical gear (35) is arranged at the end part of the rotating shaft (34), the worm wheel (36) is in meshing transmission with a worm (37), a second conical gear (39) in meshing transmission with the first conical gear (35) is coaxially connected with the worm wheel (36), and the worm (37) is in rotating fit with the nut (38);
the heat exchange box is characterized in that the two transmission supports (5) are respectively arranged on the outer walls of the two sides of the heat exchange box body (2), and the transmission supports (5) are provided with mounting holes (63) or mounting grooves for the heat exchange sections (11) to be arranged.
2. A heat exchanger according to claim 1, characterized in that the inlet and outlet ends of the heat exchange tube (1) are provided with lifting joints (12) or self-telescopic tube sections.
3. A heat exchanger according to claim 2, wherein the lifting joint (12) comprises an upper joint (121) and a lower joint (122), the upper joint (121) is connected to the heat exchange tube (1) at its upper end and is telescopically arranged at the lower end of the lower joint (122) at a connection port, and a sealing ring (123) is arranged at the connection port.
4. The heat exchanger of claim 1, characterized in that the heat exchanger section (11) is provided with a plurality of fins (13).
5. A gas water heater with a heat exchanger as claimed in any one of claims 1 to 4, comprising a burner (101) and a heat exchanger (10) arranged in the body (100), wherein the burner (101) is arranged below the heat exchanger (10).
6. The gas water heater of claim 5, characterized in that an updraft fan (102) is disposed above said heat exchanger (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416848.7A CN111219875B (en) | 2018-11-26 | 2018-11-26 | Heat exchanger and gas water heater with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416848.7A CN111219875B (en) | 2018-11-26 | 2018-11-26 | Heat exchanger and gas water heater with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111219875A CN111219875A (en) | 2020-06-02 |
| CN111219875B true CN111219875B (en) | 2021-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811416848.7A Active CN111219875B (en) | 2018-11-26 | 2018-11-26 | Heat exchanger and gas water heater with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111219875B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60240946A (en) * | 1984-05-15 | 1985-11-29 | Matsushita Electric Ind Co Ltd | Instantaneous gas hot water supplier with preventer for imperfect combustion |
| CN101457982A (en) * | 2008-12-03 | 2009-06-17 | 宁波方太厨具有限公司 | Control method for gas burner water heater and gas water heater using the method |
| CN201289227Y (en) * | 2008-09-16 | 2009-08-12 | 严雄 | Mobile type gas water heater water tank |
-
2018
- 2018-11-26 CN CN201811416848.7A patent/CN111219875B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60240946A (en) * | 1984-05-15 | 1985-11-29 | Matsushita Electric Ind Co Ltd | Instantaneous gas hot water supplier with preventer for imperfect combustion |
| CN201289227Y (en) * | 2008-09-16 | 2009-08-12 | 严雄 | Mobile type gas water heater water tank |
| CN101457982A (en) * | 2008-12-03 | 2009-06-17 | 宁波方太厨具有限公司 | Control method for gas burner water heater and gas water heater using the method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111219875A (en) | 2020-06-02 |
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