CN112032996A - Gas heating device and heating hot water supply system - Google Patents
Gas heating device and heating hot water supply system Download PDFInfo
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- CN112032996A CN112032996A CN201910477531.2A CN201910477531A CN112032996A CN 112032996 A CN112032996 A CN 112032996A CN 201910477531 A CN201910477531 A CN 201910477531A CN 112032996 A CN112032996 A CN 112032996A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 491
- 238000010438 heat treatment Methods 0.000 title claims abstract description 65
- 239000008236 heating water Substances 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims description 16
- 238000004321 preservation Methods 0.000 claims description 13
- 230000017525 heat dissipation Effects 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 11
- 238000009413 insulation Methods 0.000 description 9
- 230000009471 action Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- F24H1/107—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 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
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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
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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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)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a gas heating device and a heating and hot water supplying system. Gas heating apparatus includes: the gas furnace is provided with a main water outlet and a main water inlet and is used for burning gas to heat water input by the main water inlet and outputting hot water from the main water outlet; the heating component is provided with a heating water outlet pipe and a heating water return pipe; the hot water supply component is provided with a cold water inlet pipe, a zero-cold water return pipe, a water tank and a water pump, and the water tank is provided with a hot water outlet and a circulating water inlet; the water outlet switching valve is used for respectively connecting the circulating water inlet and the heating water outlet pipe with the main water outlet; the water outlet switching valve is used for connecting the cold water inlet pipe, the zero-cold water return pipe and the heating water return pipe with the main water inlet respectively; the circulating pump is connected between the water inlet switching valve and the main water inlet. The water storage in the external water pipe is heated or buffered through the water tank, so that the starting and stopping times of the gas furnace are reduced, the fluctuation of the water outlet temperature is reduced, the gas consumption is saved, and the water use experience of a user is improved.
Description
Technical Field
The invention belongs to the technical field of heating furnaces, and particularly relates to a gas heating device and a heating hot water supply system.
Background
At present, gas heating devices adopt gas as energy to heat water to realize heating, and along with the technical progress, the gas heating devices can also have the function of supplying domestic hot water for users. For example: chinese patent application No. 201811537311.6 discloses a zero-cold water gas wall-mounted boiler system which can meet the heating requirement in a room on one hand and can also meet the zero-cold water hot water supply on the other hand. However, in the actual use process, in order to realize zero cold water, the cold water in the water outlet pipe needs to be conveyed to the gas furnace from the water return pipe through the water pump for heating, and then conveyed to the water outlet pipe again. However, because the water quantity stored in the water outlet pipe is small, when the water is heated by burning of the gas furnace, the heat generated by burning and heating is far greater than the requirement of the stored water quantity under the influence of the minimum heating power of the gas furnace, and the starting and stopping of the burner of the gas furnace are controlled by detecting whether the heating temperature reaches a set value or not. In the actual use process, in order to keep the temperature of water in a water pipe, the water in the pipe needs to be heated, when the water temperature reaches the preset temperature, the machine does not work, when the water temperature is lower than the preset water temperature, the water pump needs to be ignited again for heating, the water pump is restarted for running, the machine is started repeatedly, the service life of the gas furnace is influenced, and the waste of gas is caused by frequent starting; because the amount of the zero-cold water is small, the temperature is easy to exceed the temperature when the water is heated by combustion, and the temperature difference between the zero-cold water and the temperature to be used is large (suddenly cold and suddenly hot) in the use process of a user, so that uncomfortable water using experience is caused. The invention aims to solve the technical problem of how to design a technology for saving gas consumption and improving water use experience of a user.
Disclosure of Invention
The invention provides a gas heating device and a heating and hot water supplying system aiming at the technical problems in the prior art, in the zero cold water heating process, water stored in an external water pipe is heated or buffered by a water tank, so that the starting and stopping times of a gas furnace are reduced, the fluctuation of the water outlet temperature is reduced, the gas consumption is saved, and the water use experience of a user is improved.
In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:
the invention provides a gas heating device, comprising:
the gas furnace is provided with a main water outlet and a main water inlet and is used for burning gas to heat water input by the main water inlet and outputting hot water from the main water outlet;
the heating component is provided with a heating water outlet pipe and a heating water return pipe;
the hot water supply assembly is provided with a cold water inlet pipe, a zero-cold water return pipe, a water tank and a water pump, and the water tank is provided with a hot water outlet and a circulating water inlet;
the water outlet switching valve is used for respectively connecting the circulating water inlet and the heating water outlet pipe with the main water outlet;
the water outlet switching valve is used for respectively connecting the cold water inlet pipe, the zero-cold water return pipe and the heating water return pipe with the main water inlet;
and the circulating pump is connected between the water inlet switching valve and the main water inlet.
Furthermore, a one-way valve is further arranged on the zero-cold water return pipe, and water flowing through the zero-cold water return pipe flows to the water inlet switching valve through the one-way valve.
Furthermore, the water tank is also provided with a water inlet and a water outlet, the water inlet and the water outlet are connected with the cold water inlet pipe, and the water inlet and the water outlet are also connected with the main water inlet through the water inlet switching valve.
Further, the water tank includes:
the heat preservation tank is internally provided with a water storage cavity;
the hot water outlet pipe is inserted into the heat-insulating tank, and a pipe orifice of the hot water outlet pipe, which is positioned outside the heat-insulating tank, forms the hot water outlet;
the circulating water pipe is inserted into the heat-preserving tank, and a pipe orifice of the circulating water pipe positioned outside the heat-preserving tank forms the circulating water inlet;
and the water inlet and outlet pipe is inserted into the heat-insulating tank, and the pipe orifice of the water inlet and outlet pipe, which is positioned outside the heat-insulating tank, forms the water inlet and outlet.
Further, the bottom of the heat-preserving tank is provided with a mounting opening; the water tank further comprises a sealing cover, the sealing cover is connected to the mounting opening in a sealing mode, and the hot water outlet pipe, the circulating water pipe and the water inlet and outlet pipe penetrate through the sealing cover in a sealing mode.
Furthermore, the hot water outlet pipe, the circulating water pipe and the water inlet and outlet pipe are vertically arranged.
Furthermore, the upper end of the circulating water pipe is of a closed structure, and a plurality of water outlet holes are formed in the pipe wall of the upper end of the circulating water pipe.
Furthermore, the upper end of the hot water outlet pipe is of an open structure and forms a hot water inlet, and the height of the hot water inlet is higher than that of the water outlet.
Furthermore, the upper end of the water inlet and outlet pipe is of a closed structure, a plurality of water through holes are formed in the pipe wall of the upper end portion of the water inlet and outlet pipe, and the height of each water through hole is lower than that of the corresponding water outlet hole.
The invention provides a heating and hot water supply system, which comprises a hot water output terminal, a heat dissipation terminal and the gas heating device; a hot water outlet of the gas heating device is connected with the hot water output terminal through a water supply pipe, and the water supply pipe is also connected with a zero-cold water return pipe of the gas heating device through a water return pipe; and a heating water outlet pipe and a heating water return pipe of the gas heating device are respectively connected with the corresponding connectors of the heat dissipation terminal.
Compared with the prior art, the invention has the advantages and positive effects that: by adding the water tank, a hot water outlet arranged on the water tank is used for conveying domestic hot water to the outside, and when zero cold water is heated, water in an external water pipe enters the circulating water inlet through the zero cold water return pipe, so that the water in the external water pipe is mixed with the hot water stored in the water tank, the effect of reducing the switching times of the gas furnace can be achieved, the gas consumption is saved, and the service life is prolonged; and under the condition that water storage in the water tank can not satisfy the water supply temperature requirement, and during zero cold water heating, the water of outside water pipe is carried by the gas furnace through zero cold return water pipe and is heated the back reentrant water tank and mix with the water in the water tank to the temperature that utilizes water in the water tank to cushion zero cold water heating in-process is undulant, avoids out the water temperature to rise too high, has improved user experience nature.
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 view of a schematic structural diagram of an embodiment of a gas heating apparatus according to the present invention;
FIG. 2 is a schematic view showing a structure of a water tank in an embodiment of a gas heating apparatus according to the present invention;
fig. 3 is a schematic structural view of a water inlet and outlet pipe group in an embodiment of the gas heating device of the present invention.
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.
As shown in fig. 1 to 3, the gas heating apparatus of the present embodiment includes: the heating device comprises a gas furnace 1, a heating component 2, a hot water supply component 3, a water outlet switching valve 5 and a water inlet switching valve 6.
The gas furnace 1 is provided with a main water outlet 11 and a main water inlet 12, and the gas furnace 1 is used for burning gas to heat water input from the main water inlet 12 and output hot water from the main water outlet 11. The gas stove 1 is also provided with a burner 13, a heat exchanger 14 and other components, the water is input into the heat exchanger 14 from the main water inlet 12, the burner 13 can heat the water in the heat exchanger 14 by burning gas, and the water heated by the heat exchanger 14 is output through the main water outlet 11. Here, the specific configuration of the gas furnace 1 will not be described in detail.
The heating module 2 is provided with a heating water outlet pipe 21 and a heating water return pipe 22. Specifically, the heating water outlet pipe 21 is used for delivering the hot water output from the main water outlet 11 to a heat dissipation terminal (e.g., a ground heating pipe or a radiator) disposed in the user room, and the water output from the heat dissipation terminal flows back to the heat exchanger 14 through a heating water return pipe 22.
The hot water supply unit 3 is provided with a cold water inlet pipe 31, a zero-cold water return pipe 32, and a water tank 33, and the water tank 33 has a hot water outlet (not labeled) and a circulation water inlet (not labeled). Specifically, the cold water inlet pipe 31 may be connected to an external water supply source (e.g., a tap water pipe), the water tank 33 outputs hot water through a hot water outlet, and the hot water is delivered to a hot water output terminal (e.g., a shower head or a hot water faucet) through a water supply pipe provided in a user's home. The return pipe connected to the water supply pipe for realizing the zero-cold-water function is connected to the zero-cold return pipe 32, and the specific connection mode between the water supply pipe and the return pipe is not limited or described herein with reference to the gas water heating apparatus having the zero-cold-water function in the conventional technology.
The water outlet switching valve is used for respectively connecting the circulating water inlet and the heating water outlet pipe 21 with the main water outlet 11.
The water outlet switching valve is used for connecting the cold water inlet pipe 31, the zero cold water return pipe 32 and the heating water return pipe 22 with the main water inlet 12 respectively. The functions of the water outlet switching valve 5 and the water outlet switching valve 6 are to switch different water paths to communicate, and the concrete representation entity may be a multi-position multi-way valve or a plurality of independent electrically controlled valves, which is not limited or described herein.
The circulating pump is connected between the water inlet switching valve and the main water inlet, and can drive heating water to circularly flow on one hand and domestic hot water to circularly flow on the other hand.
Specifically, in the actual use process, reference is made to the gas heating stove of the conventional art for the specific process of heating water by the gas stove 1 and supplying the heated water to the heating assembly 2 to output the heated water, which is not limited and described herein. The specific process of the gas furnace 1 in the process of heating the domestic water of the user is as follows:
in the zero cold water mode, when the water temperature in the water supply pipe is lower than the set temperature, the zero cold water heating function is started, at the moment, the water outlet switching valve 5 switches the main water outlet 11 and the circulating water inlet, and the water inlet switching valve 6 switches the zero cold water return pipe 32 to be communicated with the main water inlet 12. When zero cold water is heated, the water temperature of the water tank 33 is detected firstly, if the water temperature of the water tank 33 is larger than the water temperature in the water supply pipe, under the action of the circulating pump 4, the water in the water supply pipe enters the water tank 33 through the zero cold water return pipe 32 and the heat exchanger 14 to circularly flow until the water temperature in the water supply pipe reaches a set temperature, in the process, if the water tank temperature is lower than the starting temperature of the gas furnace 1, the gas furnace 1 is started, and the heat exchanger 14 heats the hot water to heat the water in the water tank 33. When the water temperature in the water tank 33 is not higher than the water temperature in the water supply pipe, the gas furnace 1 is started, and the heat exchanger 14 heats the hot water to heat the water in the water tank 33.
Preferably, the water tank 33 also has a water inlet and outlet (not labeled) communicating with the cold water inlet pipe 31, the water inlet and outlet also being connected with the total water inlet through the water inlet switching valve 6. Specifically, the water inlet and outlet can realize that the water output by the cold water inlet pipe 31 enters the water tank 33, and the water in the water tank 33 is sucked out by the circulating pump 4 to flow circularly. The gas furnace 1 further comprises, in the process of heating the domestic water of the user: tank water supply mode. In the water tank water supply mode, if the temperature sensor in the water tank 33 detects that the temperature of the water tank 33 is higher than the set temperature, when the user uses hot water, the circulating pump 4 stops working, the cold water output by the cold water inlet pipe 31 directly enters the water tank 33, the hot water in the water tank 33 is squeezed out, and the hot water is output from the hot water outlet. During the water using process, when the temperature sensor in the water tank 33 detects that the water tank 33 is lower than the set temperature, the heating process is started. At this time, the inlet switching valve 6 switches the cold inlet pipe 31 and the inlet/outlet port to communicate with the inlet of the circulation pump 4. The gas furnace 1 is started, and in the process of continuously using water by a user, water output by the cold water inlet pipe 31 is sucked into the heat exchanger 14 by the circulating pump 4, heated and then enters the water tank 33 and is output from the hot water outlet, so that instant water supply is realized. When the user does not use hot water, the cold water inlet pipe 31 is closed, the gas furnace 1 is started, water in the water tank 33 is conveyed to the heat exchanger 14 to be heated and then returns to the water tank 33 under the action of the circulating pump 4, the combustion heating is stopped until the water in the water tank 33 reaches the set temperature, the whole machine enters a standby state, and meanwhile, the water tank is kept warm. And when the water temperature of the water tank 33 is lower than the set temperature- < delta > T next time, the starting is carried out again.
Further, in order to maximize the use of the hot water in the water tank 33, the water tank 33 includes: the water storage tank comprises a heat preservation tank 331, a hot water outlet pipe 332, a circulating water pipe 333 and a water inlet and outlet pipe 334, wherein a water storage cavity is formed inside the heat preservation tank 331; the hot water outlet pipe 332 is inserted into the heat preservation tank 331 and is used for outputting water in the upper area in the water storage cavity, and a pipe orifice of the hot water outlet pipe 332 positioned outside the heat preservation tank 331 forms the hot water outlet; a circulating water pipe is inserted into the heat-preserving tank 331 and used for supplying water to the upper area in the water storage cavity, and a pipe orifice of the circulating water pipe, which is positioned outside the heat-preserving tank 331, forms the circulating water inlet; inside water inlet and outlet pipe 334 inserted heat preservation tank 331, water inlet and outlet pipe 334 was used for to the regional water supply in the lower part in the water storage cavity, water inlet and outlet pipe 334 still is used for exporting the regional water in the lower part in the water storage cavity, water inlet and outlet pipe 334 is located the outside mouth of pipe of heat preservation tank 331 and forms the inlet and outlet. Specifically, a hot water outlet pipe 332, a circulating water pipe 333 and a water inlet and outlet pipe 334 are inserted into the heat preservation tank 331, the hot water outlet pipe 332 is used for outputting hot water in the water tank 33 to supply hot water for users, the circulating water pipe 333 is used for circulating water to flow, and the water inlet and outlet pipe 334 is used for supplying water to the water tank 33 and outputting and heating water in the water tank 33 to meet the requirement of rapidly heating water stored in the water tank 33. Thus, the water tank 33 can effectively meet the requirement of the user for using hot water, so that the hot water in the water tank 33 can be utilized to the maximum extent to heat zero-cold water or supply hot water to the outside.
Wherein, the bottom of the heat-preserving tank 331 is provided with a mounting port; the water tank 33 further comprises a sealing cover 335, the sealing cover 335 is hermetically connected to the mounting opening, and the hot water outlet pipe 332, the circulating water pipe and the water inlet and outlet pipe 334 are hermetically penetrated through the sealing cover 335. Specifically, the hot water outlet pipe 332, the circulation water pipe and the water inlet and outlet pipe 334 are installed on the sealing cover 335, and then, the assembly is completed through the sealing cover 335 from the bottom of the thermal insulation tank 331. And the hot water outlet pipe 332, the circulating water pipe, and the water inlet and outlet pipe 334 are vertically arranged. In order to reduce the fluctuation range of the water temperature output by the hot water outlet pipe 332, the upper end of the circulating water pipe is of a closed structure, a plurality of water outlet holes 3331 are formed in the pipe wall of the upper end of the circulating water pipe, the water outlet holes 3331 are distributed on the pipe wall of the circulating water pipe, and the hot water output from the water outlet holes 3331 can be dispersed into the heat preservation tank 331 to be effectively mixed with the water in the heat preservation tank 331 so as to buffer the fluctuation of the water temperature in the heat preservation tank 331. Meanwhile, the upper end of the hot water outlet pipe 332 is in an open structure and forms a hot water inlet 3321, the height of the hot water inlet is not lower than that of the water outlet hole, and the hot water inlet can ensure that water in the heat preservation tank 331 is uniformly mixed and then output. In order to increase the hot water output rate, the upper end of the water inlet/outlet pipe 334 is a closed structure, and the wall of the upper end of the water inlet/outlet pipe 334 is provided with a plurality of water through holes 3341, so that when cold water is injected into the thermal insulation tank 331, the water through holes 3341 can disperse the cold water to the bottom of the thermal insulation tank 331, thereby reducing the impact on the hot water at the upper part of the thermal insulation tank 331 and improving the hot water output rate.
In order to detect the temperature of the water in the thermal insulation tank 331 so that the temperature of the thermal insulation tank 331 can be controlled, a first temperature sensor may be provided on the sealing cover 335 and/or a second temperature sensor may be provided on the upper portion of the thermal insulation tank 331 as necessary. Specifically, the first temperature sensor can detect the temperature of the water entering the bottom of the thermal insulation tank 331, and the second temperature sensor can detect the temperature of the water leaving the top of the thermal insulation tank 331.
In addition, in order to control the on/off of the water path, electric control valves may be disposed on the heating water outlet pipe 21, the heating water return pipe 22, the cold water inlet pipe 31, and the zero-cold water return pipe 32 as needed to control the on/off of the water path.
By adding the water tank, a hot water outlet arranged on the water tank is used for conveying domestic hot water to the outside, and when zero cold water is heated, water in an external water pipe enters the circulating water inlet through the zero cold water return pipe, so that the water in the external water pipe is mixed with the hot water stored in the water tank, the effect of reducing the switching times of the gas furnace can be achieved, the gas consumption is saved, and the service life is prolonged; and under the condition that water storage in the water tank can not satisfy the water supply temperature requirement, and during zero cold water heating, the water of outside water pipe is carried by the gas furnace through zero cold return water pipe and is heated the back reentrant water tank and mix with the water in the water tank to the temperature that utilizes water in the water tank to cushion zero cold water heating in-process is undulant, avoids out the water temperature to rise too high, has improved user experience nature.
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. A gas heating apparatus, comprising:
the gas furnace is provided with a main water outlet and a main water inlet and is used for burning gas to heat water input by the main water inlet and outputting hot water from the main water outlet;
the heating component is provided with a heating water outlet pipe and a heating water return pipe;
the hot water supply assembly is provided with a cold water inlet pipe, a zero-cold water return pipe, a water tank and a water pump, and the water tank is provided with a hot water outlet and a circulating water inlet;
the water outlet switching valve is used for respectively connecting the circulating water inlet and the heating water outlet pipe with the main water outlet;
the water outlet switching valve is used for respectively connecting the cold water inlet pipe, the zero-cold water return pipe and the heating water return pipe with the main water inlet;
and the circulating pump is connected between the water inlet switching valve and the main water inlet.
2. The gas heating apparatus according to claim 1, wherein a check valve is further provided on the zero-cold water return pipe, and water flowing through the zero-cold water return pipe flows to the water inlet switching valve through the check valve.
3. The gas-fired heating apparatus according to claim 1, wherein the water tank further has a water inlet and outlet, the water inlet and outlet being connected to the cold water inlet pipe, the water inlet and outlet being further connected to the total water inlet through the water inlet switching valve.
4. The gas-fired heating apparatus according to claim 3, wherein the water tank includes:
the heat preservation tank is internally provided with a water storage cavity;
the hot water outlet pipe is inserted into the heat-insulating tank, and a pipe orifice of the hot water outlet pipe, which is positioned outside the heat-insulating tank, forms the hot water outlet;
the circulating water pipe is inserted into the heat-preserving tank, and a pipe orifice of the circulating water pipe positioned outside the heat-preserving tank forms the circulating water inlet;
and the water inlet and outlet pipe is inserted into the heat-insulating tank, and the pipe orifice of the water inlet and outlet pipe, which is positioned outside the heat-insulating tank, forms the water inlet and outlet.
5. The gas-fired heating device according to claim 4, wherein a mounting port is provided at the bottom of the heat-insulating tank; the water tank further comprises a sealing cover, the sealing cover is connected to the mounting opening in a sealing mode, and the hot water outlet pipe, the circulating water pipe and the water inlet and outlet pipe penetrate through the sealing cover in a sealing mode.
6. The gas-fired heating apparatus according to claim 5, wherein the hot water outlet pipe, the circulating water pipe, and the water inlet and outlet pipe are arranged vertically.
7. The gas heating device according to claim 6, wherein the upper end of the circulating water pipe is of a closed structure, and a plurality of water outlet holes are formed in a pipe wall of the upper end of the circulating water pipe.
8. The gas-fired heating apparatus according to claim 7, wherein an upper end of the hot water outlet pipe is open-structured and forms a hot water inlet port having a height higher than that of the water outlet hole.
9. The gas heating device according to claim 8, wherein the upper end of the water inlet and outlet pipe is a closed structure, a plurality of water passing holes are formed in the pipe wall of the upper end of the water inlet and outlet pipe, and the height of each water passing hole is lower than that of the corresponding water outlet hole.
10. A heating and hot-water supplying system comprising a hot-water output terminal and a heat radiation terminal, characterized by further comprising a gas heating apparatus according to any one of claims 1 to 9; a hot water outlet of the gas heating device is connected with the hot water output terminal through a water supply pipe, and the water supply pipe is also connected with a zero-cold water return pipe of the gas heating device through a water return pipe; and a heating water outlet pipe and a heating water return pipe of the gas heating device are respectively connected with the corresponding connectors of the heat dissipation terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910477531.2A CN112032996B (en) | 2019-06-03 | 2019-06-03 | Gas heating device and heating hot water supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910477531.2A CN112032996B (en) | 2019-06-03 | 2019-06-03 | Gas heating device and heating hot water supply system |
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| Publication Number | Publication Date |
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| CN112032996A true CN112032996A (en) | 2020-12-04 |
| CN112032996B CN112032996B (en) | 2022-05-20 |
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| CN201910477531.2A Active CN112032996B (en) | 2019-06-03 | 2019-06-03 | Gas heating device and heating hot water supply system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877519A (en) * | 2022-06-07 | 2022-08-09 | 武汉见金节能技术研发有限公司 | Two-stage heat exchange intelligent multi-section combustion direct-supply water heater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2888337Y (en) * | 2006-04-20 | 2007-04-11 | 陈永志 | Water heater with heating function |
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| CN2888337Y (en) * | 2006-04-20 | 2007-04-11 | 陈永志 | Water heater with heating function |
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| CN114877519A (en) * | 2022-06-07 | 2022-08-09 | 武汉见金节能技术研发有限公司 | Two-stage heat exchange intelligent multi-section combustion direct-supply water heater |
| CN114877519B (en) * | 2022-06-07 | 2024-05-14 | 武汉见金节能技术研发有限公司 | Two-stage heat exchange intelligent multi-section combustion direct-supply type water heater |
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| CN112032996B (en) | 2022-05-20 |
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