CN112303909A - Heating and hot water supply equipment and heating and hot water supply system - Google Patents
Heating and hot water supply equipment and heating and hot water supply system Download PDFInfo
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- CN112303909A CN112303909A CN201910690223.8A CN201910690223A CN112303909A CN 112303909 A CN112303909 A CN 112303909A CN 201910690223 A CN201910690223 A CN 201910690223A CN 112303909 A CN112303909 A CN 112303909A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 604
- 238000010438 heat treatment Methods 0.000 title claims abstract description 127
- 239000008236 heating water Substances 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims description 11
- 238000004321 preservation Methods 0.000 claims description 11
- 230000017525 heat dissipation Effects 0.000 claims description 8
- 230000005855 radiation Effects 0.000 claims 1
- 238000009413 insulation Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000007789 sealing Methods 0.000 description 6
- 210000002105 tongue Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000872 buffer Substances 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
- 230000008602 contraction Effects 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
- 230000002035 prolonged 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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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
- F24H9/00—Details
- F24H9/0005—Details for water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
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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
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
Abstract
The invention discloses heating and hot water supply equipment and a heating and hot water supply system. Heating and hot water supply equipment comprises: the heating system comprises a shell, a gas furnace, a heat exchanger and a heat exchanger, wherein the shell is provided with a heating water outlet joint, a heating water return joint, a water inlet joint, a zero cold water joint and a hot water joint; the hot water supply assembly comprises a water tank and a water pump; the first water outlet of the main heating pipe is connected with the heating water outlet joint, the first water inlet of the main heating pipe is connected with the heating water return joint, the second water outlet of the auxiliary heating pipe is connected with the water tank, the second water inlet of the auxiliary heating pipe is respectively connected with the water inlet joint and the zero cold water joint, the hot water joint is connected with the water tank, and the water pump is connected between the auxiliary heating pipe and the water tank.
Description
Technical Field
The invention belongs to the technical field of heating stoves, and particularly relates to heating and hot water supplying equipment and a heating and hot water supplying system.
Background
At present, heating and hot water supply equipment adopts gas as energy to heat water to realize heating, and along with the technical progress, the heating and hot water supply equipment 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 heating and hot water supply device and a heating and hot water supply system aiming at the technical problems in the prior art, wherein 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 outlet water 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 heating and hot water supply device, comprising:
the heating water outlet joint, the heating water return joint, the water inlet joint, the zero cold water joint and the hot water joint are arranged on the shell;
the gas stove is provided with a heat exchanger, and the heat exchanger is provided with a main heating pipe and an auxiliary heating pipe;
the hot water supply assembly comprises a water tank and a water pump;
the first water outlet of the main heating pipe is connected with the heating water outlet joint, the first water inlet of the main heating pipe is connected with the heating water return joint, the second water outlet of the auxiliary heating pipe is connected with the water tank, the second water inlet of the auxiliary heating pipe is respectively connected with the water inlet joint and the zero cold water joint, the hot water joint is connected with the water tank, and the water pump is connected between the auxiliary heating pipe and the water tank.
Further, the water tank is provided with a first water port, a second water port and a third water port; the first water port is connected with the hot water joint, the second water port is connected with the second water outlet, and the third water port is respectively connected with the second water inlet and the water inlet joint.
The reversing mechanism comprises an electric control three-way valve and a three-way pipe, the electric control three-way valve is provided with a first connecting port, a second connecting port and a third connecting port, the first connecting port is selectively communicated with the second connecting port or the third connecting port, and the three-way pipe is connected with the second connecting port; the first connecting port is connected with the second water inlet, the third water port and the cold water inlet pipe are respectively connected with corresponding pipe orifices of the three-way pipe, and the zero cold water joint is connected with the third connecting port.
Furthermore, the reversing mechanism further comprises a four-way pipe and an exhaust valve, and the heating and hot water supply equipment further comprises a first expansion tank and a second expansion tank; the corresponding pipe orifices of the four-way pipe are respectively connected with the exhaust valve, the first expansion tank, the first connecting port and the second water inlet; and a second expansion tank is connected to the pipeline between the heating water return joint and the first water inlet.
Further, the water pump is connected between the second water inlet and the four-way pipe; or the water pump is connected between the second water outlet and the second water gap.
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-preserving tank, and a pipe orifice of the hot water outlet pipe, which is positioned outside the heat-preserving tank, forms the first water gap;
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 second water port;
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 third water port.
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 also provides a heating and hot water supplying system, which comprises a hot water output terminal, a heat dissipation terminal and the heating and hot water supplying equipment; the first water port of the heating and hot water supply equipment 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 joint of the heating and hot water supply equipment through a water return pipe; and a heating water outlet joint and a heating water return joint of the heating and water supplying equipment are respectively connected with 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, when zero cold water is heated, water in the external water pipe enters the water tank through the zero cold water joint, so that the water in the external water pipe is mixed with 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 requirement of water supply temperature, when zero cold water heating, the water of outside water pipe is mixed with the water in the water tank through zero cold water joint carry to the auxiliary heating pipe in by the gas furnace heating reentrant water tank after and 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 the structural principle of an embodiment of a heating and hot water supply apparatus according to the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of a heating and hot water supply apparatus according to the present invention;
FIG. 3 is a schematic view of a heating and water heating apparatus according to an embodiment of the present invention with the outer casing removed;
FIG. 4 is a schematic structural diagram of a water tank in an embodiment of a heating and hot water supply apparatus according to the present invention;
FIG. 5 is a schematic structural diagram of a water inlet and outlet pipe group in an embodiment of a heating and water heating apparatus according to the present invention;
FIG. 6 is a schematic structural diagram of a reversing mechanism in an embodiment of the heating and hot water supply apparatus 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 6, the heating and hot water supply apparatus of the present embodiment includes: a housing 2, a gas burner 1 and a hot water supply assembly 3.
The shell 2 is provided with a heating water outlet joint 21, a heating water return joint 22, a water inlet joint 23, a zero cold water joint 24 and a hot water joint 25. Specifically, the water inlet connector 23 may be connected to an external water supply source (e.g., a tap water pipe) to introduce new cold water; the heating water outlet joint 21 and the heating water return joint 22 are connected with an external heat dissipation terminal to realize the circulating flow of heating water; the hot water joint 25 is used for delivering domestic hot water to the outside.
The gas furnace 1 is provided with a heat exchanger 10, wherein the heat exchanger 10 is provided with a primary heating pipe 11 and a secondary heating pipe 12. Specifically, the gas burner 1 is usually provided with a burner and other components, and the specific structural form of the gas burner 1 is not described in detail herein. The primary-heating pipe 11 has a first water outlet 111 and a first water inlet 112, and the gas-fired furnace 1 burns gas through a burner to heat water flowing through the primary-heating pipe 11 and the secondary-heating pipe 12. The heating water outlet joint 21 is used for delivering the hot water output from the first water outlet 111 to a heat dissipation terminal (e.g., a ground heating pipe or a radiator) disposed in a user room, and the water output from the heat dissipation terminal flows to the first water inlet 112 through the heating water return joint 22. In order to accelerate the circulation speed of the heating water, a heating pump 4 is arranged in a heating water loop formed by a heating water outlet joint 21, a heating water return joint 22 and a radiating terminal, and the circulation flow of the water in the heating water loop is accelerated through the heating pump 4. The heating pump 4 may be integrated in the heating and hot water supply device, or may be independent of the heating and hot water supply device. The secondary heating pipe 12 has a second water outlet 121 and a second water inlet 122, hot water output from the second water outlet 121 can enter the hot water supply unit 3, and external cold water enters the secondary heating pipe 12 through the second water inlet 122 to be heated.
The hot water supply unit 3 is provided with a water tank 31 and a water pump 32. Specifically, the hot water in the water tank 31 is delivered to the outside through the hot water joint 25, and the hot water delivered from the hot water joint 25 is delivered to a hot water delivery terminal (for example, a shower head or a hot water faucet) through a water supply pipe disposed in the home of the user. The water return pipe connected to the water supply pipe for realizing the zero-cold-water function is connected to the zero-cold-water joint 24, and the specific connection mode between the water supply pipe and the water return pipe is not limited or described herein, referring to the gas water heating device with the zero-cold-water function in the conventional technology.
The first water outlet 111 is connected with the heating water outlet joint 21, the first water inlet 112 is connected with the heating water return joint 22, the second water outlet 121 is connected with the water tank 31, the second water inlet 122 is respectively connected with the water inlet joint 23 and the zero cold water joint 24, the hot water joint 25 is connected with the water tank 31, and the water pump 32 is connected between the auxiliary heating pipe 12 and the water tank 31.
Specifically, the burner of the gas furnace 1 can heat water in the main heating pipe 11 and the sub-heating pipe 12 of the heat exchanger 10 after burning gas. The water heated in the main heating pipe 11 can be output from the heating water outlet joint 21 and flow into the heat dissipation terminal under the action of the heating pump 4, and the water output from the heat dissipation terminal flows back to the main heating pipe 11, so as to realize the heating water circulation heating. In addition, for the water heated in the auxiliary heating pipe 12, the cold water supplemented by the external water source enters from the water inlet joint 23 to drive the heated hot water to enter the water tank 31, and the water stored in the water tank 31 can be driven by the water pump 32 to circularly flow into the auxiliary heating pipe 12 for heating. And for the zero cold water mode, the zero cold water joint 24 can input cold water in the water supply pipe and the water return pipe into the water tank 31 through the water pump 32 to perform a function of zero cold water by mixing hot water in the water tank 31 with cold water.
In the practical use process, as for the specific process of heating water in the main heating pipe 11 by the gas stove 1 to realize heating, reference may be made to a gas heating stove of the conventional art, which is not limited and described herein. In the case that the gas furnace 1 heats water in the auxiliary heating pipe 12 to meet the domestic water requirement of the user, the specific process is as follows:
and in the zero cold water mode, when the water temperature in the water supply pipe is lower than the set water outlet temperature, starting the zero cold water heating function. At this time, the water pump 32 is powered on and drives the water in the external water supply pipe and the water return pipe to circulate with the water in the water tank 31, so that the water in the water supply pipe and the water return pipe exchanges heat with the hot water stored in the water tank 31, and finally the temperature of the water in the water supply pipe reaches the set outlet water temperature. When the zero-cold water is heated, the water temperature of the water tank 31 is detected, and if the water temperature of the water tank 31 is higher than the water temperature in the water supply pipe, the water in the water supply pipe enters the water tank 31 through the zero-cold water joint 24 and the auxiliary heating pipe 12 to circularly flow under the action of the water pump 32 until the water temperature in the water supply pipe reaches the set temperature. In addition, if the water temperature of the water tank 31 is greater than the water temperature in the water supply pipe, but is circulated through the water pump 32 such that if the water tank temperature is lower than the starting temperature of the gas furnace 1, the gas furnace 1 is started, and the gas furnace 1 will heat the water flowing through the auxiliary heating pipe 12 to effect heating of the water in the water tank 31 until the water in the water tank 31 reaches the set outlet water temperature.
Further, the water tank 31 has a first water port (not marked), a second water port (not marked) and a third water port (not marked), the first water port is connected with the hot water connector 25, the second water outlet 121 of the auxiliary heating pipe 12 is connected with the second water port, and the third water port is respectively connected with the second water inlet 122 and the water inlet connector 23. Specifically, during the normal domestic hot water supply process, the hot water in the water tank 31 is output through the first water port and flows to the hot water joint 25 to realize the external hot water supply, and when the domestic hot water is supplied to the outside from the water tank 31, the water tank 31 is communicated with the third water port through the water inlet joint 23 to introduce an external water source into the water tank 31. In the zero-cold-water mode, after the water pump 31 is started, water in the water return pipe is pumped into the water tank 31 through the zero-cold-water joint 24 and is mixed with hot water in the water tank 31 to realize the zero-cold-water function. In addition, when the water temperature in the water tank 31 is low and needs to be heated, the gas furnace 1 and the water pump 31 are simultaneously started, and the water in the water tank 31 circularly flows into the auxiliary heating pipe 12 to realize heating. In order to avoid the reverse flow of the water at the zero-cold water joint 24, a check valve 241 is further disposed at the zero-cold water joint 24, so that the check valve 241 restricts the water at the zero-cold water joint 24 from flowing only in the direction of the auxiliary heating pipe 12.
Still further, the heating and hot water supply equipment also comprises a reversing mechanism 6. The reversing mechanism 6 comprises an electric control three-way valve 61 and a three-way pipe 62, the electric control three-way valve 61 is provided with a first connecting port, a second connecting port and a third connecting port, the first connecting port is selectively communicated with the second connecting port or the third connecting port, and the three-way pipe 62 is connected with the second connecting port; the first connection port is connected with the second water inlet 122, the third water inlet and the cold water inlet pipe 23 are respectively connected with corresponding pipe orifices of the three-way pipe 62, and the zero cold water joint 24 is connected with the third connection port. Specifically, the water tank 31 and the water inlet joint 23 are also communicated with each other by connecting the water tank 31 and the water inlet joint 23 by using the tee 62. In actual use, when the hot water stored in the water tank 31 satisfies the user's demand, the external cold water introduced from the water inlet joint 23 enters the bottom of the water tank 31 to press out the hot water at the top of the water tank 31. When a large amount of domestic hot water is needed and the hot water in the water tank 31 cannot meet the requirement, the gas furnace 1 and the water pump 32 are started simultaneously, the cold water introduced by the water inlet joint 23 enters the auxiliary heating pipe 12 under the action of the water pump 32 to be heated and then enters the water tank 31, and the water tank 31 directly outputs the domestic hot water from the first water port.
Preferably, the second reversing valve 6 further comprises a four-way pipe 63, a first expansion tank 51 and an exhaust valve 64, and the corresponding pipe openings of the four-way pipe 63 are respectively connected with the exhaust valve 64, the first expansion tank 51, the first connecting port and the inlet of the secondary heating pipe 12. Specifically, the four-way pipe 63 can meet the installation requirements of the related components of the first expansion tank 51 and the exhaust valve 64, so as to realize a more compact overall structure. The water pump 32 can be connected to the second water inlet 122 of the auxiliary heating pipe 12, that is, the water pump 32 is connected between the second water inlet 122 and the four-way pipe 63; alternatively, the water pump 32 may be connected to the second water outlet 121 of the secondary heating pipe 12, that is, the water pump 32 is connected between the second water outlet 121 and the second water port. Wherein, first expansion tank 51 can satisfy the volume change that life hot water pipeline water leads to because of expend with heat and contract with cold, especially under the circumstances of ambient temperature intensification, the volume increase of water buffers the change of water volume through first expansion tank 51. Similarly, a second expansion tank 52 may be further connected to the pipeline between the heating return water joint 22 and the first water inlet 112, and the second expansion tank 52 has a similar function to the first expansion tank 51, so as to satisfy the volume change of the heating pipeline water body caused by expansion with heat and contraction with cold.
In actual use, the heating and hot water supply device comprises: a tank water supply mode and an instant heating water supply mode. In the water tank water supply mode, if the temperature sensor in the water tank 31 detects that the water temperature in the water tank 31 is higher than the set temperature, the reversing mechanism 6 cuts off the flow path between the water inlet joint 23 and the auxiliary heating pipe 12; when the user uses hot water, the cold water output by the water inlet joint 23 directly enters the water tank 31, the hot water in the water tank 31 is squeezed out, and the hot water is output from the hot water joint 25. In the process of using water, when the temperature sensor in the water tank 31 detects that the temperature of the water tank 31 is lower than the set temperature, the instant hot water supply mode is started. In the instant water supply mode, the reversing mechanism 6 reverses to communicate the flow path between the water inlet joint 23 and the auxiliary heating pipe 12, the gas furnace 1 is started, and water output by the water inlet joint 23 enters the auxiliary heating pipe 12 to be heated and then enters the water tank 31 and is output from the hot water joint 25, so as to realize instant water supply. When the user does not use hot water, the water stored in the water tank 31 needs to be heated, and in this case, in order to ensure that the water in the water tank 31 can be circulated into the auxiliary heating pipe 12 and to prevent the external water from entering through the water inlet joint 23, the water inlet joint 23 may be provided with a control valve 231. When water in the water tank 31 needs to be heated, the reversing mechanism 6 is communicated with a flow path between the auxiliary heating pipe 12 and the water tank 31, the water inlet joint 23 is closed through the control valve 231, then the gas furnace 1 and the water pump 32 are started, the water in the water tank 31 is conveyed to the auxiliary heating pipe 12, heated and returned to the water tank 31, the combustion heating is stopped until the water in the water tank 31 reaches the set temperature, the whole machine enters a standby state, and meanwhile, the heat of the water tank 31 is preserved. And when the water temperature of the water tank 31 is lower than the set temperature- < delta > T next time, the starting is carried out again.
In addition, as the gas stove 1 and the water tank 31 are arranged in the housing 1, for convenience of assembly and installation at home of later users, a plurality of hanging jacks 201 are arranged on the side wall of the housing 2, a first inserting tongue 101 and a fixing bracket 102 are arranged on the gas stove 1, the water tank 31 is provided with a hanging frame 3101, a second inserting tongue 3102 is formed on the hanging frame 3101, the first inserting tongue 101 and the second inserting tongue 3102 are respectively inserted into the corresponding hanging jacks 201, and the fixing bracket 102 and the hanging frame 3101 are fixed on the housing 2 through screws. Specifically, in the assembly stage of a factory, the gas furnace 1 and the water tank 31 are hung on the back plate of the housing 1 through corresponding inserting tongues, so that the rapid positioning and assembly on site are facilitated; then, the gas burner 1 and the water tank 31 are firmly fixed to the housing 1 by screws to complete the assembly of the whole apparatus. When the casing 1 is installed and used in the home of a later user, the casing only needs to be installed in the home of the user integrally to realize one-time integral installation.
Based on the above technical solution, optionally, in order to utilize the hot water in the water tank 31 to the maximum, the water tank 31 includes: the heat preservation tank 311, the hot water outlet pipe 312, the circulating water pipe 313 and the water inlet and outlet pipe 314, wherein a water storage cavity is formed inside the heat preservation tank 311; the hot water outlet pipe 312 is inserted into the heat preservation tank 311 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 312 positioned outside the heat preservation tank 311 forms a first water port; the circulating water pipe 313 is inserted into the heat preservation tank 311 and is used for supplying water to the upper area in the water storage cavity, and a pipe orifice of the circulating water pipe 313 positioned outside the heat preservation tank 311 forms a second water port; the water inlet and outlet pipe 314 is inserted into the heat preservation tank 311, the water inlet and outlet pipe 314 is used for supplying water to the lower area in the water storage cavity, the water inlet and outlet pipe 314 is also used for outputting water in the lower area in the water storage cavity, and a pipe orifice of the water inlet and outlet pipe 314, which is positioned outside the heat preservation tank 311, forms a third water opening. Specifically, a hot water outlet pipe 312, a circulating water pipe 313 and a water inlet and outlet pipe 314 are inserted into the heat preservation tank 311, the hot water outlet pipe 312 is used for outputting hot water in the water tank 31 to supply hot water for users, the circulating water pipe 313 is used for circulating water to flow, and the water inlet and outlet pipe 314 is used for supplying water to the water tank 31 and outputting and heating water in the water tank 31 to meet the requirement of rapidly heating water stored in the water tank 31. Thus, the water tank 31 can effectively meet the requirement of the user for using hot water, so that the hot water in the water tank 31 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 311 is provided with a mounting port; the water tank 31 further comprises a sealing cover 315, the sealing cover 315 is hermetically connected to the mounting port, and the hot water outlet pipe 312, the circulating water pipe 313 and the water inlet and outlet pipe 314 are hermetically penetrated through the sealing cover 315. Specifically, the hot water outlet pipe 312, the circulating water pipe 313, and the water inlet/outlet pipe 314 are installed on the sealing cover 315, and then, the assembly is completed from the bottom of the thermal insulation tank 311 through the sealing cover 315. And the hot water outlet pipe 312, the circulating water pipe 313 and the water inlet and outlet pipe 314 are vertically arranged. In order to reduce the fluctuation range of the water temperature output by the hot water output pipe 312, the upper end of the circulating water pipe 313 is a closed structure, the pipe wall of the upper end of the circulating water pipe 313 is provided with a plurality of water outlet holes 3131, the water outlet holes 3131 are distributed on the pipe wall of the circulating water pipe 313, and the hot water output from the water outlet holes 3131 can be dispersed into the thermal insulation tank 311 to be effectively mixed with the water in the thermal insulation tank 311 so as to buffer the fluctuation of the water temperature in the thermal insulation tank 311. Meanwhile, the upper end of the hot water outlet pipe 312 is in an open structure and forms a hot water inlet 3121, the height of the hot water inlet 3121 is not lower than that of the water outlet 3131, and the hot water inlet 3121 can ensure that water in the heat-insulating tank 311 is uniformly mixed and then output. In order to increase the hot water output rate, the upper end of the water inlet/outlet pipe 314 is of a closed structure, the wall of the upper end of the water inlet/outlet pipe 314 is provided with a plurality of water through holes 3141, and when cold water is injected into the thermal insulation tank 311, the water through holes 3141 can disperse the cold water to the bottom of the thermal insulation tank 311, so that the impact on the hot water at the upper part of the thermal insulation tank 311 is reduced, and the hot water output rate is increased.
In order to detect the temperature of the water in the thermal insulation tank 311 so that the temperature of the thermal insulation tank 311 can be controlled, a first temperature sensor may be provided on the sealing lid 315 and/or a second temperature sensor may be provided on the upper portion of the thermal insulation tank 311, as required. Specifically, the first temperature sensor can detect the temperature of the incoming water at the bottom of the thermal insulation tank 311, and the second temperature sensor can detect the temperature of the outgoing water at the top of the thermal insulation tank 311.
In order to control the opening and closing of the water passage, control valves may be disposed at the heating water outlet joint 21, the heating water return joint 22, the water inlet joint 23, and the zero cold water joint 24 as needed to control the opening and closing of the water passage.
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 heating and hot water supply apparatus, comprising:
the heating water outlet joint, the heating water return joint, the water inlet joint, the zero cold water joint and the hot water joint are arranged on the shell;
the gas stove is provided with a heat exchanger, and the heat exchanger is provided with a main heating pipe and an auxiliary heating pipe;
the hot water supply assembly comprises a water tank and a water pump;
the first water outlet of the main heating pipe is connected with the heating water outlet joint, the first water inlet of the main heating pipe is connected with the heating water return joint, the second water outlet of the auxiliary heating pipe is connected with the water tank, the second water inlet of the auxiliary heating pipe is respectively connected with the water inlet joint and the zero cold water joint, the hot water joint is connected with the water tank, and the water pump is connected between the auxiliary heating pipe and the water tank.
2. The apparatus according to claim 1, wherein the tank has a first port, a second port, and a third port; the first water port is connected with the hot water joint, the second water port is connected with the second water outlet, and the third water port is respectively connected with the second water inlet and the water inlet joint.
3. The heating and hot water supply device according to claim 2, further comprising a reversing mechanism, wherein the reversing mechanism comprises an electrically controlled three-way valve and a three-way pipe, the electrically controlled three-way valve is provided with a first connector, a second connector and a third connector, the first connector is selectively communicated with the second connector or the third connector, and the three-way pipe is connected with the second connector; the first connecting port is connected with the second water inlet, the third water port and the cold water inlet pipe are respectively connected with corresponding pipe orifices of the three-way pipe, and the zero cold water joint is connected with the third connecting port.
4. The heating and hot water supply device according to claim 3, wherein the reversing mechanism further comprises a four-way pipe and an exhaust valve, and the heating and hot water supply device further comprises a first expansion tank and a second expansion tank; the corresponding pipe orifices of the four-way pipe are respectively connected with the exhaust valve, the first expansion tank, the first connecting port and the second water inlet; and a second expansion tank is connected to the pipeline between the heating water return joint and the first water inlet.
5. The heating and hot water supply apparatus according to claim 4, wherein the water pump is connected between the second water inlet and the cross pipe; or the water pump is connected between the second water outlet and the second water gap.
6. The apparatus of claim 2, wherein the water tank comprises:
the heat preservation tank is internally provided with a water storage cavity;
the hot water outlet pipe is inserted into the heat-preserving tank, and a pipe orifice of the hot water outlet pipe, which is positioned outside the heat-preserving tank, forms the first water gap;
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 second water port;
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 third water port.
7. The heating and water 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 the pipe wall of the upper end of the circulating water pipe.
8. The apparatus according to claim 7, wherein the upper end of the hot water outlet pipe is open and forms a hot water inlet, and the height of the hot water inlet is higher than that of the water outlet.
9. The heating and water heating apparatus 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 the water passing holes is lower than that of the water outlet holes.
10. A heating and hot water supply system comprising a hot water output terminal and a heat radiation terminal, characterized by further comprising the heating and hot water supply apparatus according to any one of claims 1 to 9; the first water port of the heating and hot water supply equipment 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 joint of the heating and hot water supply equipment through a water return pipe; and a heating water outlet joint and a heating water return joint of the heating and water supplying equipment are respectively connected with corresponding connectors of the heat dissipation terminal.
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| CN201910690223.8A CN112303909A (en) | 2019-07-29 | 2019-07-29 | Heating and hot water supply equipment and heating and hot water supply system |
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| CN201910690223.8A CN112303909A (en) | 2019-07-29 | 2019-07-29 | Heating and hot water supply equipment and heating and hot water supply system |
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| CN201910690223.8A Pending CN112303909A (en) | 2019-07-29 | 2019-07-29 | Heating and hot water supply equipment and heating and hot water supply system |
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