CN111322659A - Novel pressure-bearing type hot water system - Google Patents
Novel pressure-bearing type hot water system Download PDFInfo
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- CN111322659A CN111322659A CN202010250180.4A CN202010250180A CN111322659A CN 111322659 A CN111322659 A CN 111322659A CN 202010250180 A CN202010250180 A CN 202010250180A CN 111322659 A CN111322659 A CN 111322659A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 623
- 239000000523 sample Substances 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 20
- 238000005485 electric heating Methods 0.000 claims description 6
- 239000008399 tap water Substances 0.000 claims description 5
- 235000020679 tap water Nutrition 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000010257 thawing Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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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
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
-
- 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
-
- 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
- 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
- F24D3/18—Hot-water central heating systems using heat pumps
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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
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
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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
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—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
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
-
- 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
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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 relates to a novel pressure-bearing type hot water system, which comprises a hot water device, a primary water tank and a secondary water tank, wherein a hot water outlet of the hot water device is connected with the primary water tank, and a cold water inlet of the hot water device is connected with the primary water tank through a first circulating water pump; a hot water supply pipe is arranged on the first-stage water tank, a second circulating pump is installed on the hot water supply pipe, the water outlet end of the circulating pump is connected with an electromagnetic valve, a first bypass pipe is arranged on the hot water supply pipe on one side of the water inlet end of the second circulating pump, and a first one-way valve is arranged on the first bypass pipe; a second bypass pipe connected with the primary water tank is arranged on one side of the first bypass pipe at the water outlet end of the first check valve, and a second check valve is arranged on the second bypass pipe; the first-stage water tank is provided with a water replenishing port for replenishing water, and the second-stage water tank is provided with a water outlet for connecting a hot water pipe of a user. The hot water system is not easy to generate the phenomenon that the temperature is suddenly cooled and suddenly heated when a user uses hot water.
Description
Technical Field
The invention belongs to the technical field of hot water supply, and particularly relates to a novel pressure-bearing type hot water system.
Background
The heat pump technology is a novel energy-saving hot water heating mode which is concerned in the year, and compared with an electric water heater, the energy-saving effect of the heat pump technology can reach more than 75%, and compared with fuel gas, the heat pump technology cannot produce waste gas pollution. Therefore, at present, places with large water demand, such as hotels, schools, hospitals, factories and the like, use the heat pump technology to heat hot water, and the cost is saved. At present, many merchants adopt open stainless steel systems for saving initial investment, the system is low in water pressure, uncomfortable to use, poor in heat preservation effect of a water tank and low in energy conservation, and meanwhile, along with the lengthening of service time, the water tank is easy to leak. Meanwhile, a pressure-bearing module water tank is adopted as a hot water storage mode at present, but the existing scheme is complex in installation, and meanwhile, the phenomenon that the temperature is suddenly cooled and suddenly heated when hot water is used is easily caused.
Disclosure of Invention
In view of the above problems in the prior art, the present invention provides a novel pressure-bearing hot water system that solves at least one of the above problems.
In order to achieve the above object, the present invention provides a technical solution as follows:
a novel pressure-bearing type hot water system comprises a hot water device, a primary water tank and a secondary water tank, wherein a hot water outlet of the hot water device is connected with the primary water tank, and a cold water inlet of the hot water device is connected with the primary water tank through a first circulating water pump; the first-stage water tank is provided with a hot water supply pipe used for being connected with a hot water pipe of a user, the hot water supply pipe is provided with a second circulating pump, the water outlet end of the circulating pump is connected with an electromagnetic valve, the hot water supply pipe is provided with a first bypass pipe connected with the second-stage water tank on one side of the water inlet end of the second circulating pump, the first bypass pipe is provided with a first one-way valve, and the first one-way valve is used for enabling water of the hot water supply pipe to enter the second-stage water tank in a one-way mode; a second bypass pipe connected with the primary water tank is arranged on one side of the first bypass pipe at the water outlet end of the first one-way valve, a second one-way valve is arranged on the second bypass pipe, and the second one-way valve is used for enabling water in the secondary water tank to enter the primary water tank in a one-way mode; the water supply device is characterized in that a water replenishing port for replenishing water is arranged on the primary water tank, and a water outlet for connecting a user hot water pipe is arranged on the secondary water tank.
Preferably, the hot water outlet position of the hot water device is higher than the cold water inlet position of the hot water device; the position of the hot water outlet of the hot water device connected with the primary water tank is higher than the position of the cold water inlet of the hot water device connected with the primary water tank; the position where the hot water supply pipe is connected with the primary water tank is positioned on the top surface of the primary water tank.
Preferably, one end of the hot water supply pipe close to the primary water tank is flush with the top surface of the primary water tank or extends into the primary water tank and is close to the top surface of the primary water tank, and one end of the second bypass pipe connected with the primary water tank extends into the primary water tank and is close to the bottom surface of the primary water tank; one end of the first bypass pipe connected with the secondary water tank extends into the secondary water tank and is close to the bottom surface of the secondary water tank.
Preferably, the secondary water tank is a cascade water tank, the cascade water tank comprises a plurality of sequentially connected water distribution tanks, the first bypass pipe is connected with the water distribution tank close to the primary water tank, and one end of the hot water supply pipe, which is not connected with the primary water tank, is connected with the water distribution tank far away from the primary water tank; the water outlet is arranged on the water distribution box far away from the primary water tank.
Preferably, adjacent be close to in the diversion box of one-level water tank is the front side water tank, keeps away from the diversion box of one-level water tank is the rear side water tank, connects through the connecting pipe between the adjacent diversion box, the connecting pipe with the one end that the front side water tank is connected with the top surface of front side water tank flush or extend to in the front side water tank and be close to the top surface of front side water tank, the connecting pipe extends to with the one end that the rear side water tank is connected the one end that extends to in the rear side water tank and be close to the bottom surface of rear side water tank.
Preferably, the water outlet is arranged on the top surface of the water distribution box far away from the primary water tank and is connected with one end of the hot water supply pipe, which is not connected with the primary water tank, and an electric three-way valve for controlling the communication between the hot water supply pipe and the water outlet or a user hot water pipe is arranged at the connection position; a first water temperature probe, a second water temperature probe and a third water temperature probe are sequentially arranged in the primary water tank from top to bottom, the first probe is used for detecting the water temperature of the upper water of the primary water tank, the second probe is used for detecting the water temperature of the middle water of the primary water tank, and the third probe is used for detecting the water temperature of the lower water of the primary water tank; and a fourth water temperature probe is arranged in the water diversion box close to the primary water tank and used for detecting the water temperature of the lower water close to the water diversion box of the primary water tank.
Preferably, the processing device is further included for: when the water temperature at the lower part of the first-stage water tank is lower than T0-return difference, starting a first circulating pump; when the water temperature of the middle part of the primary water tank is more than or equal to T0-2 ℃, and the water temperature of the lower part of the water dividing tank close to the primary water tank is less than or equal to T0-return difference, starting a second circulating pump, and opening an electromagnetic valve; when the water temperature at the upper part of the first-stage water tank is less than or equal to T0-5 ℃, the second circulating pump stops working, and the electromagnetic valve is closed; when the water temperature in the middle of the first-stage water tank is detected to start to drop, the water outlet temperature of the heat pump unit is adjusted to be equal to the set water temperature of the first-stage water tank, and meanwhile, a second circulating pump is started to open the electromagnetic valve; wherein, T0 is the outlet water temperature set value.
Preferably, the water replenishing port is connected with a tap water pipe.
Preferably, a heating device is installed in the secondary water tank.
Preferably, the hot water device is a heat pump unit, and the heating device is an electric heating device.
The pressure-bearing type hot water system provided by the invention has the following advantages:
1. the phenomenon that the temperature is suddenly cold and hot when a user uses hot water is not easy to occur: the water tank is set into the first-stage water tank and the second-stage water tank, and the tail end water distribution tank is used as the water tank for directly providing hot water for a user, so that when the hot water is provided for the user, the tail end water distribution tank cannot be influenced by the heat supply regulation fluctuation of a hot water device, and the phenomenon that the temperature is suddenly cooled and suddenly heated when the user uses hot water due to the heat supply fluctuation caused by the increase of water consumption of the user in a short time is not easy to occur;
2. the initial investment cost of the user is reduced: the conventional scheme is that a primary water tank is used for directly providing hot water for a user, so that the constant requirement on the hot water outlet temperature of the primary water tank is higher, and if the requirement on short-time large-demand hot water supply is met, a high-horsepower hot water device needs to be selected; in the scheme, the tail end water distribution box is used as a water box for directly providing hot water for a user, when the user uses the hot water, the hot water of the tail end water distribution box is consumed firstly, then the hot water of the cascade water box connected with the tail end water distribution box is consumed in sequence, so that the short-time large demand can be met, the hot water is provided, after the water is used for a long time, the heating process is repeated for the first time, and the hot water is reserved for the user to use again, so that a large-horsepower hot water device is not required to be selected while the short-time large demand is met, the initial investment cost of the user is reduced, in order to accelerate the hot water storage efficiency and reduce the horsepower of the hot water device, a heating device 12 is further arranged in the tail end;
3. the electric heating device can also assist in heating hot water when a user uses a large amount of hot water in a short time, so that the requirement of the user on using a large amount of hot water in a short time is met, and the electric heating device can be connected with the temperature controller when in use so as to facilitate the opening and closing of the controller;
4. the hot water device only heats the one-level water tank, keeps away from the water distribution box that directly provides hot water for the user to during the unit defrosting, only use the hot water in the one-level water tank can, consequently can not influence out the stability of water temperature when the unit is defrosting, and in addition, the one-level water tank is kept away from the water distribution box that directly provides hot water for the user, and the effect that water temperature is invariable still can be realized under the low waiting condition of unit rate of heating winter.
Drawings
FIG. 1 is a schematic diagram of a water injection process for the first use of a system;
FIG. 2 is a schematic diagram of a heating process for initial operation of the system;
FIG. 3 is a schematic diagram of the system during use of hot water by a user;
FIG. 4 is a schematic diagram of the system continuing to heat the hot water after use by the user;
FIG. 5 is a schematic view of an installation structure of an electric three-way valve;
reference numerals in the figures; the system comprises a heat pump unit 1, a first-stage water tank 2, a water distribution tank 3, a first circulating water pump 4, a hot water supply pipe 5, a second circulating pump 6, an electromagnetic valve 7, a first bypass pipe 8, a first one-way valve 9, a second bypass pipe 10, a second one-way valve 11, a heating device 12, a connecting pipe 13, a tap water pipe 14 and an electric three-way valve 15.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a novel pressure-bearing type hot water system, which is shown in a figure 1 and comprises a hot water device heat pump unit 1, a primary water tank 2 and a secondary water tank, wherein the secondary water tank is a cascade water tank, and the cascade water tank comprises a plurality of water distribution tanks 3 which are sequentially connected; the water outlet is arranged on a water distribution box far away from the primary water tank, a hot water outlet of the hot water device is connected with the primary water tank, and a cold water inlet of the hot water device is connected with the primary water tank through a first circulating water pump 4; the water supply device comprises a primary water tank, a secondary water tank, a first one-way valve 9, a second one-way valve, a first water supply pipe 5, a second circulating pump 6, an electromagnetic valve 7, a first bypass pipe 8 and a second one-way valve, wherein the first water supply pipe is used for connecting a hot water pipe of a user, the second circulating pump is arranged on the hot water pipe, the electromagnetic valve 7 is connected to the water outlet end of the circulating pump, the first bypass pipe 8 is arranged on the hot water pipe and is connected with the secondary water tank on one side of the water inlet end of the second circulating pump; a second bypass pipe 10 connected with the primary water tank is arranged on one side of the first bypass pipe at the water outlet end of the first one-way valve, a second one-way valve 11 is arranged on the second bypass pipe, the second one-way valve is used for enabling water in the secondary water tank to enter the primary water tank in a one-way mode, the first bypass pipe is connected with a water distribution box close to the primary water tank, and one end, which is not connected with the primary water tank, of the hot water supply pipe is connected with the water distribution box far away from the primary water tank; the water supply device is characterized in that a water replenishing port for replenishing water is formed in the primary water tank, a water outlet for connecting a user hot water pipe is formed in the secondary water tank, a tap water pipe 14 is connected to the water replenishing port during use, and the water outlet is connected with the user hot water pipe.
The pressure-bearing type hot water system is used as follows:
FIG. 1 is a schematic diagram of a water injection process in the initial use of a system, wherein the arrow direction represents the water flow direction, at this time, a first circulating water pump, a second circulating water pump and an electromagnetic valve are all in a closed state, and tap water passes through a primary water tank and sequentially passes through a cascade water tank to fill the primary water tank and the cascade water tank;
fig. 2 is a schematic diagram of a heating process of the system during initial operation, wherein the arrow direction represents a water flow direction, at this time, the first circulating water pump, the second circulating water pump and the electromagnetic valve are all in an open state, cold water at the bottom of the primary water tank enters the heat pump unit, at this time, the first circulating pump operates at the maximum water flow rate, hot water heated by the heat pump unit enters the primary water tank, and thus, water in the primary water tank is heated after reciprocating circulation under the driving of the primary water pump; meanwhile, water in the first-stage water tank is heated and then enters a water distribution tank (hereinafter referred to as a tail-end water distribution tank) far away from the first-stage water tank through an electromagnetic valve under the driving of a second circulating pump, the water in the tail-end water distribution tank flows to the water tank close to the first-stage water tank in sequence under the action of pressure and finally flows into the first-stage water tank through a second one-way valve to be heated, and thus, the water in the second-stage water tank is heated to provide hot water for users;
FIG. 3 is a schematic diagram of the system during the use of hot water by a user, wherein the direction of the arrow represents the direction of water flow, at this time, the first circulating water pump is in an open state, the second circulating water pump and the solenoid valve are both in a closed state, and the tail end water tank provides hot water for the user;
fig. 4 is a schematic diagram of the process of continuing to heat the hot water when the user uses the system, wherein the arrow direction represents the water flow direction, at this time, the first circulating water pump, the second circulating water pump and the electromagnetic valve are all in an open state, the heating process of the system in the first operation is repeated, and the hot water is reserved for the user to use the hot water again.
The pressure-bearing type hot water system has the following advantages:
1. the phenomenon that the temperature is suddenly cold and hot when a user uses hot water is not easy to occur: the water tank is set into the first-stage water tank and the second-stage water tank, and the tail end water distribution tank is used as the water tank for directly providing hot water for a user, so that when the hot water is provided for the user, the tail end water distribution tank cannot be influenced by heat supply regulation fluctuation of the heat pump unit, and the phenomenon that the temperature is suddenly cooled and suddenly heated when the user uses hot water due to heat supply fluctuation caused by increase of water consumption of the user in a short time is not easy to occur;
2. the initial investment cost of the user is reduced: at present, the conventional scheme is that a primary water tank is used for directly providing hot water for a user, so that the requirement on the constant temperature of hot water outlet water of the primary water tank is higher, and if the requirement on short-time large-demand hot water supply is met, a high-horsepower heat pump unit is selected; in the scheme, the tail end water distribution box is used as a water box for directly providing hot water for a user, when the user uses the hot water, the hot water of the tail end water distribution box is consumed firstly, then the hot water of the cascade water box connected with the tail end water distribution box is consumed in sequence, so that the short-time large demand can be met, the hot water is provided for the user, after the water is used for a high tide, the heating process is repeated for the first time, and the hot water is reserved for the user, so that the hot water is provided for the short-time large demand, a large horsepower heat pump unit does not need to be selected, the initial investment cost of the user is reduced, in order to accelerate the hot water storage efficiency and reduce the horsepower heat pump unit, a heating device 12 is further arranged;
3. the electric heating device can also assist in heating hot water when a user uses a large amount of hot water in a short time, so that the requirement of the user on using a large amount of hot water in a short time is met, and the electric heating device can be connected with the temperature controller when in use so as to facilitate the opening and closing of the controller;
4. the heat pump set only heats the primary water tank, keeps away from the water distribution box that directly provides hot water for the user to during the unit defrosting, only use the hot water in the primary water tank can, consequently can not influence the stability of water temperature when the unit is defrosting, and in addition, the primary water tank keeps away from the water distribution box that directly provides hot water for the user, and the effect that water temperature is invariable still can be realized under the low waiting condition of unit rate of heating winter.
Generally, in order to prevent the hot water at the top of the primary water tank and the cold water at the bottom from mixing, the hot water outlet of the hot water device is positioned higher than the cold water inlet of the hot water device; the position of the hot water outlet of the hot water device connected with the primary water tank is higher than the position of the cold water inlet of the hot water device connected with the primary water tank; the position where the hot water supply pipe is connected with the primary water tank is positioned on the top surface of the primary water tank. In order to prevent the hot water at the top of the secondary water tank and the cold water at the bottom from mixing, one end of the hot water supply pipe close to the primary water tank is flush with the top surface of the primary water tank or extends into the primary water tank and is close to the top surface of the primary water tank, and one end of the second bypass pipe connected with the primary water tank extends into the primary water tank and is close to the bottom surface of the primary water tank; first bypass pipe with the one end that the second grade water tank is connected extends to in the second grade water tank and be close to the bottom surface of second grade water tank, it is adjacent in the branch water tank be close to the diversion box of one-level water tank is the front side water tank, keeps away from the diversion box of one-level water tank is the rear side water tank, connects through connecting pipe 13 between the adjacent diversion box, the one end that connecting pipe and front side water tank are connected with the top surface of front side water tank flush or extend to in the front side water tank and be close to the top surface of front side water tank, the one end that connecting pipe and rear side water tank are connected extends to in the rear side water tank and be close to the bottom surface of rear side water tank.
As a preferred embodiment, referring to fig. 5, the water outlet is arranged on the top surface of the water diversion box far away from the primary water tank, and is connected with one end of the hot water supply pipe which is not connected with the primary water tank, and an electric three-way valve 15 for controlling the communication between the hot water supply pipe and the water outlet or a user hot water pipe is arranged at the connection position; like this, can realize a dual-purpose effect of pump, can be in can using the hot water circulation in the primary water tank to the user hot-water line before the user uses hot water, realize opening the effect of heating promptly, can pass through the circulating pump with the cold water in the secondary water tank simultaneously and carry to the primary water tank in. Generally, in the normal circulation heating process, the electric three-way valve is communicated with a pipeline through an outlet of the second circulation pump and a tail end water distribution box, and when the temperature of the water return pipe is detected to be lower than 35 degrees, the electric three-way valve is communicated with an outlet of the second circulation pump and a user hot water pipe for water return circulation. When the hot water is normally used, the outlet of the tail end water distribution box is communicated with a user hot water pipe.
In the application, the structures such as the valve and the circulating pump can be controlled in a mode of manually controlling the switch, preferably using an automatic control mode, specifically, a first water temperature probe, a second water temperature probe and a third water temperature probe are sequentially installed in the primary water tank from top to bottom, the first probe is used for detecting the water temperature of the upper water of the primary water tank, the second probe is used for detecting the water temperature of the middle water of the primary water tank, and the third probe is used for detecting the water temperature of the lower water of the primary water tank; and a fourth water temperature probe is arranged in the water diversion box close to the primary water tank and used for detecting the water temperature of the lower water close to the water diversion box of the primary water tank. The installation of the water temperature probe is well known in the heat source of the art, and is not limited herein, and the control thereof may be controlled by using a comparator, and generally, the control may be performed by using a processing device, and the processing device may be a processing device known by technicians such as a processor, a single chip microcomputer, a PLC, and the like, and the following processing procedures are performed: when the water temperature at the lower part of the first-stage water tank is lower than T0-return difference, starting a first circulating pump; when the water temperature of the middle part of the first-stage water tank is more than or equal to T0-2 ℃, and the water temperature of the lower part of the water dividing tank close to the first-stage water tank is less than or equal to T0-return difference, starting the second circulating pump, opening the electromagnetic valve, and when the water temperature of the upper part of the first-stage water tank is less than or equal to T0-5 ℃, stopping the second circulating pump, closing the electromagnetic valve, so as to prevent cold water on the upper part of the first-stage water tank from circularly entering the tail-end water; when the water temperature in the middle of the first-stage water tank is detected to start to drop, the water outlet temperature of the heat pump unit is adjusted to be equal to the set water temperature of the first-stage water tank, meanwhile, a circulating second circulating pump is started, an electromagnetic valve is opened, and the process is a working state of the system when a user uses water with large water volume; wherein, T0 is the leaving water temperature set value, and the return difference refers to the difference between the start-up temperature and the shutdown temperature, for example, the return difference is 6 degrees, and the water temperature is lower than the set temperature-6 degrees, then the heat pump set and the first circulating pump are started to heat.
It should be noted that the heat pump unit may also use other hot water devices as long as the purpose of heating the water circulation of the primary water tank can be achieved, and the water tank is not specifically limited herein, and the water tank generally uses a pressure-bearing water tank.
In this application, the secondary water tank can also be a single water tank, and it is only necessary to directly provide a water outlet for connecting a hot water pipe of a user on the water tank, and the structure is simpler than that of embodiment 1, and is used for providing hot water in short-time and small-demand compared with that of embodiment 1.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A novel pressure-bearing type hot water system is characterized by comprising a hot water device, a primary water tank and a secondary water tank, wherein a hot water outlet of the hot water device is connected with the primary water tank, and a cold water inlet of the hot water device is connected with the primary water tank through a first circulating water pump;
the first-stage water tank is provided with a hot water supply pipe used for being connected with a hot water pipe of a user, the hot water supply pipe is provided with a second circulating pump, the water outlet end of the circulating pump is connected with an electromagnetic valve, the hot water supply pipe is provided with a first bypass pipe connected with the second-stage water tank on one side of the water inlet end of the second circulating pump, the first bypass pipe is provided with a first one-way valve, and the first one-way valve is used for enabling water of the hot water supply pipe to enter the second-stage water tank in a one-way mode; a second bypass pipe connected with the primary water tank is arranged on one side of the first bypass pipe at the water outlet end of the first one-way valve, a second one-way valve is arranged on the second bypass pipe, and the second one-way valve is used for enabling water in the secondary water tank to enter the primary water tank in a one-way mode;
the water supply device is characterized in that a water replenishing port for replenishing water is arranged on the primary water tank, and a water outlet for connecting a user hot water pipe is arranged on the secondary water tank.
2. A novel pressure-bearing hot water system as claimed in claim 1, wherein the hot water outlet of the hot water device is higher than the cold water inlet of the hot water device;
the position of the hot water outlet of the hot water device connected with the primary water tank is higher than the position of the cold water inlet of the hot water device connected with the primary water tank;
the position where the hot water supply pipe is connected with the primary water tank is positioned on the top surface of the primary water tank.
3. A novel pressure-bearing hot water system as claimed in claim 1, wherein the end of the hot water supply pipe close to the primary water tank is flush with the top surface of the primary water tank or extends into the primary water tank and close to the top surface of the primary water tank, and the end of the second bypass pipe connected with the primary water tank extends into the primary water tank and close to the bottom surface of the primary water tank;
one end of the first bypass pipe connected with the secondary water tank extends into the secondary water tank and is close to the bottom surface of the secondary water tank.
4. A novel pressure-bearing hot water system as claimed in any one of claims 1 to 3, characterized in that the secondary water tank is a cascade water tank, the cascade water tank comprises a plurality of sequentially connected water diversion tanks, the first bypass pipe is connected with the water diversion tank close to the primary water tank, and the end of the hot water supply pipe not connected with the primary water tank is connected with the water diversion tank far away from the primary water tank;
the water outlet is arranged on the water distribution box far away from the primary water tank.
5. A novel pressure-bearing hot water system as claimed in claim 4, wherein the water dividing tank close to the primary water tank in the adjacent water dividing tanks is a front side water tank, the water dividing tank far away from the primary water tank is a rear side water tank,
connect through the connecting pipe between the adjacent distributive box, the one end that connecting pipe and front side water tank are connected with the top surface of front side water tank flush or extend to in the front side water tank and be close to the top surface of front side water tank, the one end that connecting pipe and rear side water tank are connected extends to in the rear side water tank and be close to the bottom surface of rear side water tank.
6. A novel pressure-bearing hot water system as claimed in claim 5, wherein the water outlet is arranged on the top surface of the water dividing box far away from the primary water tank, and is connected with one end of the hot water supply pipe which is not connected with the primary water tank, and an electric three-way valve for controlling the communication between the hot water supply pipe and the water outlet or a user hot water pipe is arranged at the connection position;
a first water temperature probe, a second water temperature probe and a third water temperature probe are sequentially arranged in the primary water tank from top to bottom, the first probe is used for detecting the water temperature of the upper water of the primary water tank, the second probe is used for detecting the water temperature of the middle water of the primary water tank, and the third probe is used for detecting the water temperature of the lower water of the primary water tank;
and a fourth water temperature probe is arranged in the water diversion box close to the primary water tank and used for detecting the water temperature of the lower water close to the water diversion box of the primary water tank.
7. A novel pressure-bearing hot water system as claimed in claim 6, further comprising processing means for: when the water temperature at the lower part of the first-stage water tank is lower than T0-return difference, starting a first circulating pump;
when the water temperature of the middle part of the primary water tank is more than or equal to T0-2 ℃, and the water temperature of the lower part of the water dividing tank close to the primary water tank is less than or equal to T0-return difference, starting a second circulating pump, and opening an electromagnetic valve;
when the water temperature at the upper part of the first-stage water tank is less than or equal to T0-5 ℃, the second circulating pump stops working, and the electromagnetic valve is closed;
when the water temperature in the middle of the first-stage water tank is detected to start to drop, the water outlet temperature of the heat pump unit is adjusted to be equal to the set water temperature of the first-stage water tank, and meanwhile, a second circulating pump is started to open the electromagnetic valve;
wherein, T0 is the outlet water temperature set value.
8. A novel pressure-bearing hot water system according to claim 1, characterized in that a tap water pipe is connected to the water replenishing port.
9. A novel pressure-bearing hot water system as claimed in claim 1, wherein a heating device is installed in the secondary water tank.
10. A novel pressure-bearing hot water system according to claim 9, characterized in that the hot water device is a heat pump unit, and the heating device is an electric heating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010250180.4A CN111322659A (en) | 2020-04-01 | 2020-04-01 | Novel pressure-bearing type hot water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010250180.4A CN111322659A (en) | 2020-04-01 | 2020-04-01 | Novel pressure-bearing type hot water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111322659A true CN111322659A (en) | 2020-06-23 |
Family
ID=71167863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010250180.4A Pending CN111322659A (en) | 2020-04-01 | 2020-04-01 | Novel pressure-bearing type hot water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111322659A (en) |
-
2020
- 2020-04-01 CN CN202010250180.4A patent/CN111322659A/en active Pending
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