CN113944951A - Modular water heating device and control method - Google Patents
Modular water heating device and control method Download PDFInfo
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- CN113944951A CN113944951A CN202111231385.9A CN202111231385A CN113944951A CN 113944951 A CN113944951 A CN 113944951A CN 202111231385 A CN202111231385 A CN 202111231385A CN 113944951 A CN113944951 A CN 113944951A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 607
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- 239000007788 liquid Substances 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000008236 heating water Substances 0.000 claims description 3
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Classifications
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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
- F24D17/00—Domestic hot-water supply systems
- F24D17/02—Domestic hot-water supply systems using heat 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
- F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
- F24D19/1054—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water the system uses a heat pump
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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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- 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]
- Y02B30/12—Hot water central heating systems using heat pumps
Abstract
The invention relates to a modularized water heating device and a control method, the water heating device comprises a control module, a user side hot water supply main pipe, a user side hot water return main pipe and at least two hot water device standard modules, the user side hot water supply main pipe is connected with each hot water device standard module and used for providing hot water for the outside of the modularized water heating device, the user side hot water return main pipe is connected with each hot water device standard module and used for returning water into the modularized water heating device, the control module is respectively connected with the user side hot water supply main pipe, the user side hot water return main pipe and each hot water device standard module and used for controlling the working state of the hot water device standard modules, and each hot water device standard module comprises a heating module, a heating transmission module, a heat storage module and a heat supply transmission module. The water heating device disclosed by the invention realizes modular integration and modular installation, saves the installation space, is energy-saving and environment-friendly, and has strong assembly operability.
Description
Technical Field
The invention relates to the technical field of water supply and drainage, in particular to a modular water heating device and a control method.
Background
Along with the continuous improvement of the economic level of China, the living standard of people is obviously improved, the demand of domestic hot water is increased, and the centralized hot water supply is more and more in the modern buildings due to the advantages of comfort, safety and quickness.
An air source hot water pump hot water system is a hot water supply system which takes air as a low-level heat source and water as a transmission medium and adopts a heat pump technology to prepare hot water. However, the existing air source heat pump hot water systems have the problems of large occupied area, environment pollution caused by field installation, incapability of integrated and modularized installation, and incapability of intelligent regulation and control among a plurality of modules.
Disclosure of Invention
The invention aims to provide a modular water heating device and a control method, which are used for solving the problems that the existing air source heat pump water heating system is installed in a scattered mode on site, the system occupies a large area, the field installation pollutes the environment and cannot be installed in an integrated and modular mode, and realizing automatic control of the water heating system and remote control of a mobile terminal.
In one aspect, to solve the above problems, the present invention provides a modular hot water apparatus comprising a control module, a user-side hot water supply main, a user-side hot water return main, and at least two hot water apparatus standard modules;
the user side hot water supply main pipe is connected with each hot water device standard module and is used for supplying hot water to the outside of the modularized hot water devices;
the user side hot water return main pipe is connected with each hot water device standard module and is used for returning water to the modularized hot water devices;
the control module is respectively connected with the user side hot water supply main pipe, the user side hot water return main pipe and each hot water device standard module and is used for controlling the working state of the hot water device standard modules.
Preferably, each hot water device standard module comprises a heating module, a heating transmission module, a heat storage module, a heat supply transmission module and an equipment base, wherein the heating module, the heating transmission module, the heat storage module and the heat supply transmission module are integrally installed on the equipment base;
the heating module is connected with the heat storage module through the heating transmission module and is used for heating water to a set temperature;
the heat storage module is used for storing and preserving heat of the hot water heated by the heating module;
the heat supply transmission module is connected with the heat storage module and is used for supplying hot water to the outside of the standard module of the hot water device;
every among the hot water system standard module heat the module, heat transmission module, heat-retaining module, heat supply transmission module respectively with control module connects, control module is right heat the module, heat transmission module, heat-retaining module, heat supply transmission module's operating condition controls.
Preferably, a chip capable of being connected with a mobile terminal is further arranged in the control module, and the operating state and the operating parameters of the modular water heating device can be monitored through the mobile terminal.
Preferably, the heating module comprises an air source heat pump hot water unit; the heating transmission module comprises a heat pump side hot water supply pipe and a heat pump side hot water return pipe;
the air source heat pump hot water unit is connected with the heat storage module through the heat pump side hot water supply pipe and is used for supplying hot water to the heat storage module;
the heat pump side hot water return pipe is provided with a circulating pump, the air source heat pump hot water unit, the heat pump side hot water supply pipe, the heat storage module, the circulating pump and the heat pump side hot water return pipe form a loop, and the circulating pump is used for enabling water in the heat storage module to flow back into the air source heat pump hot water unit through the heat pump side hot water return pipe;
each heat storage module is provided with a first temperature sensor for measuring the temperature of water in the heat storage module; each first temperature sensor is connected with the control module, and each air source heat pump hot water unit and the circulating pump in the hot water device standard module are connected with the control module.
Preferably, a liquid level sensor and a cold water replenishing pipe are also arranged in the heat storage module; the liquid level sensor is positioned inside the heat storage module and used for measuring the water level of water in the heat storage module; the cold water replenishing pipe extends to the bottom of the heat storage module and is used for replenishing water to the heat storage module, and the liquid level sensor is connected with the control module.
Preferably, the heat supply transmission module comprises a user side hot water supply pipe and a user side hot water return pipe;
a pressure pump is arranged on the hot water supply pipe at the user side; a first valve component is arranged on the user side hot water return pipe;
the user side hot water supply pipe is used for connecting the heat storage module in the standard module of the hot water device with a user side hot water supply main pipe; the user side hot water return pipe is used for connecting the heat storage module in the standard module of the hot water device with a user side hot water return main pipe;
the booster pump and the first valve assembly in each hot water unit standard module are connected to the control module.
Preferably, a pressure sensor is arranged on the user-side hot water supply main pipe, a second temperature sensor is arranged on the user-side hot water return main pipe, and the pressure sensor and the second temperature sensor are connected with the control module;
the pressure sensor is used for detecting the actual water supply pressure of the user-side hot water supply main pipe, and the pressure pumps in the standard modules of the hot water devices are sequentially adjusted according to the actual water supply pressure and are used for regulating and controlling the water supply pressure of the user-side hot water supply main pipe;
the second temperature sensor is used for detecting the temperature of water in the user side hot water return main pipe.
In another aspect, the present invention also provides a method for controlling a modular hot water apparatus, the method comprising:
acquiring real-time water supply pressure P1 detected by a pressure sensor on the water supply main pipe at the side of the user and uploading the real-time water supply pressure P1 to the control module, wherein the set value of the water supply pressure is P0;
when P1 is less than P0, increasing the operating frequency of the booster pump in the first hot water unit standard module, and/or sequentially turning on and increasing the booster pump of the next hot water unit standard module until P1 increases to P0;
when P1 is greater than or equal to P0, the operation frequency of the pressurizing pump is reversely shut down or reduced from the last pressurizing pump in the standard module of the hot water device in operation until P1 is reduced to P0.
Preferably, the control method further includes:
acquiring a first temperature value T1 detected by a first temperature sensor in each standard module of the hot water device and uploading the first temperature value T1 to the control module in real time;
when T1 in the standard module of the hot water device is smaller than or equal to a first temperature threshold value, controlling a hot water unit and a circulating pump of an air source heat pump in the standard module of the hot water device to be in a working state;
when T1 in the standard module of the hot water device is greater than or equal to a second temperature threshold value, controlling the hot water unit and the circulating pump of the air source heat pump in the standard module of the hot water device to be in a non-working state;
wherein the first temperature threshold is less than the second temperature threshold.
Preferably, the control method further includes:
acquiring a second temperature value T2 measured by a second temperature sensor on a user-side hot water return main pipe and uploading the second temperature value T2 to the control module in real time;
and when the T2 is less than the third temperature threshold value and the difference value between the T1 and the T2 in the hot water device standard module is greater than or equal to the fourth temperature threshold value, controlling the first valve assembly in the hot water device standard module to be opened for a preset time.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1) the modularized water heating device and the control method provided by the invention realize the modularized integration and the modularized installation of the air source heat pump water heating unit, save the installation space, save energy and protect environment, the modularized water heating devices with different heating quantities can be assembled according to the standard modules of the water heating devices with different types and different quantities, and a user can select the modularized water heating device according to the heating quantity;
2) according to the modular water heating device and the control method, the chip capable of being connected with the mobile terminal is arranged on the control module, so that automatic control of a water heating system and remote control of the mobile terminal are realized, the later operation and maintenance working efficiency is improved, and the operation and maintenance difficulty is reduced;
3) the modular water heating device and the control method thereof provided by the invention have the advantages that the modular water heating device is reasonable in design and simple and convenient to operate, can realize industrial mass production, and can be widely applied to the fields of civil buildings, industrial buildings and the like with various scales and hot water demands;
4) according to the modular water heating device and the control method provided by the invention, each standard module of the water heating device can work independently or cooperatively, when one standard module of the water heating device breaks down, the use of other standard modules of the water heating device is not influenced, and the problem that the use of a user is influenced because the water heating device is stopped when a certain standard module of the water heating device is overhauled is avoided.
Drawings
FIG. 1 is a system schematic of a modular hot water unit in accordance with an embodiment of the present invention;
FIG. 2 is a schematic plan view of a modular hot water unit according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a standard module of a hot water unit of the modular hot water unit according to an embodiment of the present invention;
FIG. 4 is a top view of a hot water unit standard module of the modular hot water unit of an embodiment of the present invention;
fig. 5 is a schematic flow chart of an alternative method for controlling the modular hot water apparatus according to the embodiment of the present invention.
1-a first hot water device standard module; 2-a second hot water unit standard module; 3-a third hot water device standard module;
10-a heating module; 101-air source heat pump hot water unit;
11-heating transmission module; 111-heat pump side hot water supply pipe; 112-heat pump side hot water return pipe; 113-a circulation pump;
12-a heat storage module; 121-a heat preservation water tank; 122 — a first temperature sensor; 123-liquid level sensor; 124-cold water replenishing pipe; 125-an overflow pipe; 126-a drain pipe;
13-a heat supply transmission module; 131-user side hot water supply pipe; 132-user side hot water return; 133-a pressure pump; 134-a first valve assembly; 135-an expansion tank;
14-equipment base;
4-a control module; 41-chip;
5-water main pipe for supplying hot water at user side; 51-a pressure sensor;
6-user side hot water return main pipe; 61-second temperature sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention. In the drawings, the size and relative sizes of certain features may be exaggerated for clarity.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected" and "coupled" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; the term "connecting" may refer to a direct connection, an indirect connection through an intermediate, a connection between two elements or an interaction relationship between two elements, and a person skilled in the art can understand the specific meaning of the above terms in the present invention in a specific case.
In the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", and the like are used in the orientations and positional relationships shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the designated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the following description, suffixes such as "module" or "unit" used to indicate elements are used only for convenience of description of the present application, and have no specific meaning by themselves, so that "module" or "unit" may be used mixedly.
In addition, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing in description.
As shown in fig. 1 to 4 of the specification, the present invention provides a modular hot water apparatus including a control module 4, a user-side hot water supply main 5, a user-side hot water return main 6, and at least two hot water apparatus standard modules.
In some embodiments, the number of the standard modules of the hot water device can be selected according to the actual heating capacity, the modular hot water device is provided with two or more standard modules of the hot water device, the structure and the heating capacity of a single standard module of the hot water device can be the same or different, and the standard modules of the hot water device are the same in order to facilitate regulation, assembly and spare parts.
As shown in fig. 2 of the specification, in the embodiment of the present application, a modular water heating apparatus and a control method are explained in detail by taking three standard modules of a water heating apparatus as an example, and in order to distinguish the modules, in the following part of the description, a description is given according to a first standard module 1 of the water heating apparatus, a second standard module 2 of the water heating apparatus, and a third standard module 3 of the water heating apparatus, the three standard modules of the water heating apparatus have the same structure and are not distinguished in sequence, and in the following part of the description, "each standard module of the water heating apparatus" refers to all standard modules of the water heating apparatus and is not specifically designated.
The user side hot water supply main pipe 5 is connected with each hot water device standard module and is used for providing hot water to the outside of the modular hot water device;
the user side hot water return main pipe 6 is connected with each hot water device standard module and is used for returning water to the modularized hot water devices;
the control module 4 is respectively connected with the user side hot water supply main pipe 5, the user side hot water return main pipe 6 and each hot water device standard module, and is used for controlling the working state of the hot water device standard modules.
Specifically, a plurality of standard modules of the hot water device share one control module 4, the control module 4 is installed in a control cabinet, and the control cabinet is integrally installed with the plurality of standard modules of the hot water device.
The user side hot water supply main pipe 5 is used for supplying hot water to users, and the hot water output ends of the standard modules of all the hot water devices are connected with the user side hot water supply main pipe 5 and provide hot water to the users after being gathered; similarly, the user side hot water return main pipe 6 returns water to each standard hot water device module and is connected with a hot water return end in each standard hot water device module, and the control module 4 can regulate and control the working state of each standard hot water device module and can also intelligently regulate and control the water supply and return of the modular hot water devices.
In some embodiments, a plurality of standard modules of the hot water device can be assembled together or separately installed at different positions, and each hot water supply end and each hot water return end are respectively connected with the user-side hot water supply main pipe 5 and the user-side hot water return main pipe 6 through pipelines, so that each standard module of the hot water device can be installed according to actual construction requirements; in this embodiment, as shown in fig. 2 of the specification, in order to facilitate installation of pipes and unified management and maintenance, the first hot water apparatus standard module 1, the second hot water apparatus standard module 2, and the third hot water apparatus standard module 3 are assembled together and installed in a concentrated manner.
As one embodiment, as shown in fig. 3 and 4 of the specification, each of the standard modules of the hot water apparatus includes a heating module 10, a heating transmission module 11, a heat storage module 12, a heat supply transmission module 13, and an apparatus base 14, and the heating module 10, the heating transmission module 11, the heat storage module 12, and the heat supply transmission module 13 are integrally installed on the apparatus base 14;
the heating module 10 is connected with the heat storage module 12 through the heating transmission module 11, and is used for heating water to a set temperature;
the heat storage module 12 is used for storing and preserving heat of the hot water heated by the heating module 10;
the heat supply transmission module 13 is connected with the heat storage module 12 and is used for supplying hot water to the outside of the standard module of the hot water device;
every among the hot water system standard module heat module 10, heat transmission module 11, heat-retaining module 12, heat supply transmission module 13 respectively with control module 2 is connected, control module 2 is right heat module 10, heat transmission module 11, heat-retaining module 12, heat supply transmission module 13's operating condition controls.
In some embodiments, the heat storage module 12 includes a thermal insulation water tank 121, which may be made of stainless steel for being suitable for outdoor installation, and the thermal insulation water tank 121 may be square, circular or other shapes, and in this embodiment, the shape of the thermal insulation water tank 121 is not limited.
Further, in order to make the thermal insulation water tank 121 have a good thermal insulation effect, the thermal insulation water tank 121 preferably adopts a double-layer structure, the inner container and the outer shell are both made of stainless steel materials, and a thermal insulation material is filled between the inner container and the outer shell, specifically, the thermal insulation material can be a thermal insulation material made of polystyrene, polyurethane and the like, so that the water energy of the stainless steel thermal insulation water tank 121 can keep a certain temperature, and the requirements of life and industry can be met. In the embodiment of the present application, the types of the materials of the inner container and the outer shell of the heat preservation water tank 121 and the types of the filling layers are not limited, and can be selected according to actual requirements.
Furthermore, each hot water device standard module is connected with the control module 4, and the control module 4 can respectively regulate and control the heating module 10, the heating transmission module 11, the heat storage module 12 and the heat supply transmission module 13 in each hot water device standard module, so that each hot water device standard module can work independently or cooperatively.
As one embodiment, the control module 4 is further provided with a chip 41 capable of being connected with a mobile terminal, and the mobile terminal can be used for monitoring the operation state and the operation parameters of the modular water heating device; the chip 41 may be a Subscriber Identity Module (SIM) or a User Identity Module (UIM), and the operation parameters such as the water temperature in the thermal insulation water tank, the water tank liquid level, the domestic hot water return water temperature and the like may be displayed and read on the mobile terminal, or may be regulated and controlled.
Specifically, the mobile terminal can be a mobile phone, a computer and the like, and can directly connect each parameter in the water heating device to the mobile phone of the user, so that the user can detect each operation parameter in the water heating device in real time through the mobile phone or the computer, and the operation is convenient and fast.
As one embodiment, the heating module 10 includes an air source heat pump hot water unit 101; the heating transfer module 11 includes a heat pump side hot water supply pipe 111 and a heat pump side hot water return pipe 112;
the air source heat pump hot water unit 101 is connected to the hot water tank 121 of the heat storage module 12 through the heat pump hot water supply pipe 111, and is configured to supply hot water to the hot water tank 121.
In some embodiments, the heating module 10 is configured to heat water to a preset temperature, and then deliver the water to the heat storage module for heat preservation, where the preset temperature is set by a user according to an actual use requirement, for example, according to a sensible temperature in summer and winter, for example, when the water heating device provides domestic water, the preset temperature may be 40 ℃, 50 ℃, or 55 ℃, and in this embodiment, the preset temperature is not limited, and for user safety, a maximum regulation temperature is usually set, for example, 75 ℃, and the user may arbitrarily set in a safety range.
The heat pump side hot water return pipe 112 is provided with a circulating pump 113, the air source heat pump hot water unit 101, the heat pump side hot water supply pipe 111, the heat preservation water tank 121, the circulating pump 113 and the heat pump side hot water return pipe 112 form a loop, and the circulating pump 113 is used for returning water in the heat preservation water tank 121 to the air source heat pump hot water unit 101 through the heat pump side hot water return pipe 112 for heating; in the embodiment of the present application, the circulation pump 113 may be a vertical circulation pump or a horizontal circulation pump, and the type of the circulation pump 113 is not limited in the embodiment of the present application;
each of the heat-insulating water tanks 121 is provided with a first temperature sensor 122 for measuring the temperature of water in the heat-insulating water tank 121; each first temperature sensor 122 is connected with the control module 4, and the air source heat pump hot water unit 101 and the circulating pump 113 in each standard hot water device module are connected with the control module 4.
In some embodiments, the first temperature sensor 122 is disposed at 1/3 level in the holding water tank 121, and a plurality of first temperature sensors 122 may be disposed in the holding water tank 121 in order to generate temperature differences at various places in the holding water tank 121.
In some embodiments, in order to ensure safe operation of each standard hot water device module, real-time data monitoring such as temperature detection and pressure detection is further provided on the heat pump side hot water supply pipe 111 and the heat pump side hot water return pipe 112, so as to eliminate potential safety hazards.
In some embodiments, valve assemblies or dampers are disposed on the heat pump side hot water supply pipe 111 and the heat pump side hot water return pipe 112 to regulate the hot water device.
As one embodiment, a liquid level sensor 123 and a cold water replenishing pipe 124 are further disposed in the heat storage module 12; the liquid level sensor 123 is located inside the heat-preservation water tank 121 and is used for measuring the water level of water in the heat-preservation water tank 121; the cold water replenishing pipe 124 extends to the bottom of the heat preservation water tank 121 and is used for replenishing water to the heat preservation water tank 121, specifically, the cold water replenishing pipe 124 is connected with an external water supply end to ensure that the water level in the heat preservation water tank 121 is within a preset range, and the liquid level sensor 123 is connected with the control module 4.
In some embodiments, in order to implement automatic water replenishment, an electronic valve assembly may be further disposed on the cold water replenishing pipe 124, and the electronic valve assembly is connected to the control module 4, and when the water level in the thermal insulation water tank 121 is lower than the minimum water level threshold, the electronic valve assembly is opened, so that water is automatically supplied to the cold water replenishing pipe 124, and automatic water replenishment is implemented, and when the water level in the thermal insulation water tank 121 reaches the maximum water level threshold, the electronic valve assembly is closed, and water replenishment is stopped; in order to fully mix the newly added cold water with the hot water in the heat-preservation water tank, the cold water replenishing pipe 124 extends to the bottom of the heat-preservation water tank 121, and a plurality of water outlet holes are formed in the tail end of the cold water replenishing pipe 124, so that the cold water can be uniformly mixed with the hot water, and the phenomenon that the water temperature in the heat-preservation water tank 121 is inconsistent is avoided.
In some embodiments, an overflow pipe 125 and a drain pipe 126 are further disposed on the thermal insulation water tank 121, the overflow pipe 124 is disposed at the highest water level of the thermal insulation water tank 121 to prevent excessive overflow of water in the thermal insulation water tank 121, the drain pipe 126 is disposed at the bottom of the thermal insulation water tank 121, the overflow pipe 125 and the drain pipe 126 are merged and then discharged, and a valve assembly is further disposed on the drain pipe 126 to facilitate regulation.
As one of the embodiments, the heat supply transmission module 13 includes a user-side hot water supply pipe 131, a user-side hot water return pipe 132;
the user side hot water supply pipe 131 is provided with a pressure pump 133; a first valve assembly 134 is disposed on the user-side hot water return pipe 132; in order to balance the water supply pressure, an expansion tank 135 is further provided to the user-side hot water supply pipe, and the expansion tank 135 is provided behind the pressurizing pump 133.
The user side hot water supply pipe 131 is used for connecting the heat storage module 12 in the standard module of the hot water device with the user side hot water supply main pipe 5; the user side hot water return pipe 6 is used for connecting the heat storage module 12 in the standard module of the hot water device with the user side hot water return main pipe 6;
the pressure pump 133 and the first valve assembly 134 of each standard hot water unit module are connected to the control module 4.
In the embodiment of the present application, the first valve assembly 134 may be a ball cock, a solenoid valve, or the like, and the type of the first valve assembly 134 is not limited.
As one embodiment, a pressure sensor 51 is arranged on the user-side hot water supply main pipe 5, a second temperature sensor 61 is arranged on the user-side hot water return main pipe 6, and the pressure sensor 51 and the second temperature sensor 61 are connected with the control module 4;
the pressure sensors 51 are arranged behind the user-side hot water supply pipes 131 flowing through the user-side hot water supply main pipes 5, namely the pressure sensors 51 are used for detecting the actual water supply pressure of the user-side hot water supply main pipes 5, and the booster pumps 133 in the hot water device standard modules are sequentially adjusted according to the actual water supply pressure and are used for regulating and controlling the water supply pressure of the user-side hot water supply main pipes 5;
the second temperature sensor 61 is provided in front of each of the user-side hot water returning pipes 132 through which the user-side hot water returning main pipe 6 flows, that is, the second temperature sensor 61 detects the temperature of water in the user-side hot water returning main pipe 6.
In the embodiment of the application, the control module 4 has the same regulation and control mode for the single standard water heating device module, so that only the structure of one standard water heating device module is elaborated, the standard water heating device modules can work independently and can also work in coordination with each other, when one standard water heating device module breaks down, the work of other standard water heating device modules is not influenced, the device with the fault can be overhauled and maintained independently, and the condition that the user is influenced by the stop waiting in the maintenance and overhaul process is avoided.
In some embodiments, the control module 4 is installed in the control cabinet, and performs centralized control on each hot water device standard module to ensure that the water temperature in the holding water tank is within a set range, and the control module 4 is also connected with the pressure sensor 51 and the second temperature sensor 61 on the user-side hot water supply main pipe 5 and the user-side hot water return main pipe 6, and adjusts the water supply pressure of each hot water device standard module in the modular hot water device to ensure that the water supply pressure on the user-side hot water supply main pipe 5 connected with the user maintains a normal level; the control module 4 monitors the water temperature on the return water main pipe 6 of the side water at the user side, and can control the return water in the standard modules of each water heating device in the modular water heating device.
The control module 4 is connected with the first temperature sensor 122, the circulating pump 113 and the air source heat pump hot water unit 101 in each hot water device standard module, water in the heat preservation water tank 121 to be heated can be heated independently according to the water temperature in each heat preservation water tank 121, the heating time, the heating temperature and the like can be set separately, and the hot water device standard modules are not affected.
The control module 4 is connected with the booster pump 133 in each hot water device standard module, and is connected with the pressure sensor 51 on the user-side hot water supply main pipe 5, each user-side hot water supply pipe 131 is connected with the user-side hot water supply main pipe 5, the pressure sensor 51 monitors the water supply pressure of each user-side hot water supply pipe 131 after flowing through the user-side hot water supply main pipe 5, and the booster pump 133 on each hot water device standard module can be adjusted according to the user-side water supply pressure, so that the water supply pressure is maintained in a set water supply pressure range, and the situation that the water pressure is unstable is avoided.
The control module 4 is connected with the first valve assemblies 134 in each standard hot water device module, the second temperature sensor 61 on the return water main pipe 6 of the user-side hot water is connected with the control module 4, the return water can be returned into each standard hot water device module according to the return water temperature, each first valve assembly 134 can be opened sequentially or simultaneously, and the first valve assemblies 134 can be selectively opened for returning water according to actual requirements.
In some embodiments, the control module 4 is provided with a chip 41 connectable to the mobile terminal, and the control module 4 further includes a display panel, and the operation parameters of the hot water apparatus can be monitored and controlled on the display panel, or can be monitored and controlled on a mobile phone terminal and a computer terminal, such as monitoring operation parameters of water temperature, water storage amount, and return water temperature.
The modular water heating device in the embodiment of the application is not limited to be installed on the outdoor ground, and can be installed on the roof of a building.
In some embodiments, considering the operation safety of the water heating device, a valve component, a temperature sensor, a pressure sensor and the like can be arranged on each pipeline, so that the water heating device is convenient to overhaul, and the running states of each part of the water heating device are convenient to monitor, so that the water heating device is convenient to overhaul and maintain; of course, under the condition that some installation conditions are appropriate, the installation height can meet the minimum water pressure, a pressurizing pump, an expansion tank and other devices can be omitted, and the hot water device can be adjusted according to the actual installation conditions and the use requirements.
In another aspect, the present invention further provides a control method of a modular hot water apparatus, including:
acquiring real-time water supply pressure P1 detected by a pressure sensor on the water supply main pipe at the side of the user and uploading the real-time water supply pressure P1 to the control module, wherein the set value of the water supply pressure is P0;
when P1 is less than P0, increasing the operating frequency of the booster pump in the first hot water unit standard module, and/or sequentially turning on and increasing the booster pump of the next hot water unit standard module until P1 increases to P0;
when P1 is greater than or equal to P0, the operation frequency of the pressurizing pump is reversely shut down or reduced from the last pressurizing pump in the standard module of the hot water device in operation until P1 is reduced to P0.
As shown in fig. 5 in the specification, which is an optional flow diagram of the above control method, three standard modules of the hot water apparatus are taken as an example for description, the number of the standard modules of the hot water apparatus in the modular hot water apparatus includes, but is not limited to, three, two or more, and "the first, second and third" are merely for convenience of description and do not represent a sequence, and the standard modules of the hot water apparatus may be used interchangeably; the booster pump is preferably a variable frequency booster pump, and in the figure, the user side variable frequency booster pump is the booster pump in the embodiment of the application, the water supply pressure measured by a pressure sensor on a user side hot water supply main pipe is P1, and the set value of the user side water supply pressure is P0.
The specific control flow is as follows:
step S501: starting the system, and turning off each pressure pump in the initial stage;
step S502: starting a pressurizing pump of a first hot water device standard module and operating to the highest frequency;
step S503: detecting the water supply pressure P1 on the user side hot water supply main pipe and uploading the water supply pressure P1 to the control module;
the data detected by the pressure sensor on the user-side hot water mains is real-time and the supply pressure regulation takes place at any stage of the system operation.
Comparing the water supply pressure P1 of step S503 with the set value P0, and when P1 is greater than or equal to P0, performing step S504: reducing the operating frequency of the booster pump in the first standard module of the hot water device until the water supply pressure P1 approaches the set value P0, preferably reducing P1 until P0, and the hot water device can normally supply water; of course, if P1 is equal to P0 in the initial stage, the operation frequency of the pressure pump in the first standard module of the hot water device does not need to be reduced, but the loss of the pressure pump is slightly reduced because the pressure pump is always operated at the highest frequency.
If the current water supply pressure P1 is lower than the set value P0 in step S503, the water supply pressure on the user side is insufficient, and then step S505 is executed: and starting a booster pump in the second standard hot water device module, and operating to the highest frequency.
Step S506: the current water supply pressure P1 on the user side hot water main is detected and uploaded to the control module.
If the current water supply pressure P1 detected at step S506 is greater than or equal to the set value P0, step S507 is performed: reducing the operating frequency of the booster pump in the second standard hot water device module until P1 approaches P0;
step S508: continuously carrying out actual measurement on the water supply pressure in the process of reducing the operation frequency in the step S507;
if the current water supply pressure P1 detected in step S508 is less than the set value P0, step S509 is performed: increasing the operating frequency of a pressure pump in the standard module of the second hot water device until P1 approaches P0, so that the hot water device can normally supply water;
in the process of reducing the operation frequency of the pressurizing pump in step S507, until the water supply pressure P1 approaches P0, when the operation frequency of the pressurizing pump is about to be the lowest, the current water supply pressure P1 detected in step S508 is greater than or equal to P0, then step S510 is executed: turning off the pressurizing pump in the second standard hot water device module; and in the subsequent operation process of the hot water device, returning to the step S503 to detect the water supply pressure in real time.
If the current water supply pressure P1 detected at step S506 is less than the set value P0, step S511 is performed: starting a pressurizing pump of a third hot water device standard module and operating to the highest frequency;
step S512: after a third standard module of the hot water device is started, detecting the current water supply pressure P1 at the user side;
if the current water supply pressure P1 detected in step S512 is greater than or equal to the set value P0, step S513 is performed: reducing the operating frequency of a booster pump of a standard module of a third hot water device until the actually measured water supply pressure P1 approaches to P0;
step S514: continuously detecting the pressure of the water supply side;
if the current water supply pressure P1 detected in step S514 is less than the set value P0, step S515 is performed: increasing the operating frequency of a pressurizing pump in a third standard module of the hot water device until the water supply pressure P1 approaches P0;
in the process of decreasing the operation frequency of the pressurizing pump in step S513, until the water supply pressure P1 approaches P0, when the operation frequency of the pressurizing pump is about to be the lowest, the current water supply pressure P1 detected in step S514 is greater than or equal to P0, and then step S516 is executed: turning off the pressurizing pump in the third standard hot water device module; and in the subsequent operation process of the hot water device, returning to execute the step S506 to detect the water supply pressure in real time.
In the embodiment of the application, before the installation of the hot water device, the parameters are preliminarily estimated, so that in the water supply process, when all the pressure pumps in the three hot water device standard modules are started and run to the highest frequency, the water supply pressure on the user-side hot water supply main pipe can completely meet the requirement, and the phenomenon that the water supply pressure P1 is less than P0 when all the pressure pumps in the three hot water device standard modules are started can not occur.
In some embodiments, the water supply pressure is increased by starting or increasing the operating frequency of the pressure pump in the standard hot water device module, so that the operating frequency of the pressure pump in each standard hot water device module can be not adjusted to be the highest when the pressure pump is started, and the water supply pressure can be increased under the condition of increasing the operation of the pressure pump of the standard hot water device module; there are various ways to adjust the water supply pressure at the user side, and in this embodiment, only one of the regulation and control processes is listed; and the opening sequence of the three standard modules of the hot water device can be exchanged without limiting the opening sequence of the standard modules of the hot water device.
As one embodiment, the control method of the modular water heating apparatus further includes the following steps:
s517: and acquiring a first temperature value T1 detected by a first temperature sensor in each standard hot water device module and uploading the first temperature value T1 to the control module in real time.
The first temperature value T1 is the current temperature of the heat-preservation water tank, and the working principle of the heating module, the heat storage module and the heating transmission module in each hot water device standard module is the same.
S518: it is determined whether T1 is less than or equal to the first temperature threshold.
If T1 in the standard module of the hot water device is less than or equal to a first temperature threshold, controlling a hot water unit and a circulating pump of an air source heat pump in the standard module of the hot water device to be in working states; if T1 in the hot water device standard module is greater than the first temperature threshold, step S519 is executed.
S519: it is determined whether T1 is greater than or equal to the second temperature threshold.
If T1 in the standard module of the hot water device is greater than or equal to a second temperature threshold value, controlling a hot water unit and a circulating pump of an air source heat pump in the standard module of the hot water device to be in a non-working state; if T1 in the hot water device standard module is smaller than the second temperature threshold, the process returns to step S517.
The regulation and control of the first temperature value T1 are to ensure that the water temperature in the heat-preservation water tank is in a set range, and the internal automatic control of the air source heat pump hot water unit and the circulating pump in each hot water device standard module is realized, specifically, a first temperature sensor in the heat-preservation water tank detects the water temperature T1 in the heat-preservation water tank and uploads the water temperature to a control module in real time, the outlet water temperature of the air source heat pump hot water unit is set to be 55 ℃, the first temperature threshold value is 45 ℃, the second temperature threshold value is 60 ℃, when the temperature T1 is less than or equal to 45 ℃, the control module controls the circulating pump and the air source heat pump hot water unit in the hot water device standard module to be started in sequence, and when the temperature T1 reaches 60 ℃, the control module controls the air source heat pump hot water unit and the circulating pump in the hot water device standard module to be stopped in sequence; the outlet water temperature, the first temperature threshold and the second temperature threshold can be set according to actual use, and are not limited in the embodiment of the application.
As one embodiment, the control method of the modular water heating apparatus further includes the following steps:
acquiring a second temperature value T2 measured by a second temperature sensor on a user-side hot water return main pipe and uploading the second temperature value T2 to the control module in real time;
and when the T2 is less than the third temperature threshold value and the difference value between the T1 and the T2 in the hot water device standard module is greater than or equal to the fourth temperature threshold value, controlling the first valve assembly in the hot water device standard module to be opened for a preset time.
The second temperature value is detected for controlling the opening and closing of a user side hot water return pipe in each hot water device standard module, a second temperature sensor is arranged on a user side hot water return main pipe to detect the user side return water temperature T2 and upload the user side return water temperature T2 to the control module in real time, the third temperature threshold is 45 ℃, and the fourth temperature threshold is 5 ℃; specifically, when the temperature T2 is less than 45 ℃ and the difference value between the first temperature value T1 and the first temperature value T2 is greater than or equal to 5 ℃, the control module controls the corresponding first valve assembly in the standard module of the hot water device to be opened, and the closing is delayed for 5-10 min; in the embodiment of the present application, the third temperature threshold, the fourth temperature threshold, and the opening time of the first valve assembly are not limited, and may be set according to actual use.
Further, the control method further comprises the following steps:
acquiring the water level value of a liquid level sensor in a heat-insulating water tank in each standard module of the hot water device; in order to facilitate automatic regulation and control, a valve component is arranged on the cold water replenishing pipe.
Judging whether the water level value is lower than the lowest water level or higher than the highest water level, if so, supplementing water to the heat preservation water tank by the cold water supplementing pipe, and if so, automatically draining water by the overflow pipe without supplementing water by the cold water supplementing pipe; the water level in the heat preservation water tank is ensured to be within a set range.
The control methods provided in the embodiment of the application can be combined at will under the condition of no conflict to obtain a new method embodiment;
the characteristics of the products provided in the embodiment of the application can be combined at will under the condition of no conflict to obtain a new product embodiment;
features of several methods or devices provided in the embodiments of the present application may be combined arbitrarily without conflict to obtain new method embodiments or device embodiments.
It should be understood by those skilled in the art that the present invention may be embodied in many other specific forms without departing from the spirit or scope of the invention. Although an embodiment of the present invention has been described, it is to be understood that the present invention should not be limited to this embodiment, and variations and modifications can be made by those skilled in the art within the spirit and scope of the present invention as defined in the appended claims.
Claims (10)
1. A modularized hot water device is characterized by comprising a control module, a user-side hot water supply main pipe, a user-side hot water return main pipe and at least two hot water device standard modules;
the user side hot water supply main pipe is connected with each hot water device standard module and is used for supplying hot water to the outside of the modularized hot water devices;
the user side hot water return main pipe is connected with each hot water device standard module and is used for returning water to the modularized hot water devices;
the control module is respectively connected with the user side hot water supply main pipe, the user side hot water return main pipe and each hot water device standard module and is used for controlling the working state of the hot water device standard modules.
2. The modular hot water device as claimed in claim 1, wherein each standard hot water device module comprises a heating module, a heating transmission module, a heat storage module, a heat supply transmission module and a device base, and the heating module, the heating transmission module, the heat storage module and the heat supply transmission module are integrally mounted on the device base;
the heating module is connected with the heat storage module through the heating transmission module and is used for heating water to a set temperature;
the heat storage module is used for storing and preserving heat of the hot water heated by the heating module;
the heat supply transmission module is connected with the heat storage module and is used for supplying hot water to the outside of the standard module of the hot water device;
every among the hot water system standard module heat the module, heat transmission module, heat-retaining module, heat supply transmission module respectively with control module connects, control module is right heat the module, heat transmission module, heat-retaining module, heat supply transmission module's operating condition controls.
3. The modular water heating apparatus as claimed in claim 1, wherein a chip connectable to a mobile terminal is further disposed in the control module, and the operating state and operating parameters of the modular water heating apparatus can be monitored through the mobile terminal.
4. The modular hot water apparatus of claim 2, wherein the heating module comprises an air-source heat pump hot water unit; the heating transmission module comprises a heat pump side hot water supply pipe and a heat pump side hot water return pipe;
the air source heat pump hot water unit is connected with the heat storage module through the heat pump side hot water supply pipe and is used for supplying hot water to the heat storage module;
the heat pump side hot water return pipe is provided with a circulating pump, the air source heat pump hot water unit, the heat pump side hot water supply pipe, the heat storage module, the circulating pump and the heat pump side hot water return pipe form a loop, and the circulating pump is used for enabling water in the heat storage module to flow back into the air source heat pump hot water unit through the heat pump side hot water return pipe;
each heat storage module is provided with a first temperature sensor for measuring the temperature of water in the heat storage module; each first temperature sensor is connected with the control module, and each air source heat pump hot water unit and the circulating pump in the hot water device standard module are connected with the control module.
5. The modular hot water apparatus as claimed in claim 2, wherein the heat storage module is further provided with a liquid level sensor and a cold water replenishing pipe; the liquid level sensor is positioned inside the heat storage module and used for measuring the water level of water in the heat storage module; the cold water replenishing pipe extends to the bottom of the heat storage module and is used for replenishing water to the heat storage module, and the liquid level sensor is connected with the control module.
6. The modular hot water apparatus as claimed in claim 2, wherein the heat supply transfer module comprises a user-side hot water supply pipe, a user-side hot water return pipe;
a pressure pump is arranged on the hot water supply pipe at the user side; a first valve component is arranged on the user side hot water return pipe;
the user side hot water supply pipe is used for connecting the heat storage module in the standard module of the hot water device with a user side hot water supply main pipe; the user side hot water return pipe is used for connecting the heat storage module in the standard module of the hot water device with a user side hot water return main pipe;
the booster pump and the first valve assembly in each hot water unit standard module are connected to the control module.
7. The modular hot water apparatus as claimed in claim 6, wherein the user side hot water supply main is provided with a pressure sensor, the user side hot water return main is provided with a second temperature sensor, and the pressure sensor and the second temperature sensor are connected with the control module;
the pressure sensor is used for detecting the actual water supply pressure of the user-side hot water supply main pipe, and the pressure pumps in the standard modules of the hot water devices are sequentially adjusted according to the actual water supply pressure and are used for regulating and controlling the water supply pressure of the user-side hot water supply main pipe;
the second temperature sensor is used for detecting the temperature of water in the user side hot water return main pipe.
8. A method of controlling a modular water heating apparatus, applied to the modular water heating apparatus according to any one of claims 1 to 7, the method comprising:
acquiring real-time water supply pressure P1 detected by a pressure sensor on the water supply main pipe at the side of the user and uploading the real-time water supply pressure P1 to the control module, wherein the set value of the water supply pressure is P0;
when P1 is less than P0, increasing the operating frequency of the booster pump in the first hot water unit standard module, and/or sequentially turning on and increasing the booster pump of the next hot water unit standard module until P1 increases to P0;
when P1 is greater than or equal to P0, the operation frequency of the pressurizing pump is reversely shut down or reduced from the last pressurizing pump in the standard module of the hot water device in operation until P1 is reduced to P0.
9. The method of controlling a modular hot water unit as claimed in claim 8, further comprising:
acquiring a first temperature value T1 detected by a first temperature sensor in each standard module of the hot water device and uploading the first temperature value T1 to the control module in real time;
when T1 in the standard module of the hot water device is smaller than or equal to a first temperature threshold value, controlling a hot water unit and a circulating pump of an air source heat pump in the standard module of the hot water device to be in a working state;
when T1 in the standard module of the hot water device is greater than or equal to a second temperature threshold value, controlling the hot water unit and the circulating pump of the air source heat pump in the standard module of the hot water device to be in a non-working state;
wherein the first temperature threshold is less than the second temperature threshold.
10. The method of controlling a modular hot water unit as claimed in claim 9, further comprising:
acquiring a second temperature value T2 measured by a second temperature sensor on a user-side hot water return main pipe and uploading the second temperature value T2 to the control module in real time;
and when the T2 is less than the third temperature threshold value and the difference value between the T1 and the T2 in the hot water device standard module is greater than or equal to the fourth temperature threshold value, controlling the first valve assembly in the hot water device standard module to be opened for a preset time.
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