CN217584599U - Double-water-tank multi-energy heating system - Google Patents
Double-water-tank multi-energy heating system Download PDFInfo
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- CN217584599U CN217584599U CN202220926296.XU CN202220926296U CN217584599U CN 217584599 U CN217584599 U CN 217584599U CN 202220926296 U CN202220926296 U CN 202220926296U CN 217584599 U CN217584599 U CN 217584599U
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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Abstract
The utility model discloses two water tank multipotency source heating system relates to heating system technical field, especially relates to the heating system who adopts multipotency source cooperation two water tanks. The heat pump unit of the utility model is communicated with the low-temperature water tank; the electric boiler is communicated with the high-temperature heat storage water tank through a pipeline and an electric boiler circulating pump; the solar unit is communicated with the low-temperature water tank and the high-temperature heat storage water tank through a pipeline, a solar circulating pump and an electric adjusting two-way valve set; the plate heat exchanger is communicated with the low-temperature water tank and the high-temperature heat storage water tank through a pipeline, a primary circulating pump and an electric adjusting two-way valve set; a double-water-tank mutual overflow pipe is arranged between the low-temperature water tank and the high-temperature heat storage water tank; the control unit is electrically communicated with the heat pump unit, the electric boiler, the solar unit, the circulating pumps and the electric adjusting two-way valve group through cables. The technical proposal of the utility model solves the problems that the existing independent electric heating is high in operating cost; the single solar heating stability is poor; the single heat pump is used for heating, and the extreme weather is poor in capacity and the like.
Description
Technical Field
The utility model discloses two water tank multi-energy heating system relates to heating system technical field, especially relates to the heating system who adopts the two water tanks of multi-energy cooperation.
Background
Climate change is a global problem facing mankind. With the carbon dioxide emission of each country, greenhouse gases are increased dramatically, and the life system is threatened. Against this background, countries around the world reduce greenhouse gases in a global contractual manner, from which china proposes carbon peak-reaching and carbon neutralization targets.
With the continuous development of coal-to-electricity projects, especially the increasing scale of northern areas in China, the original projects using coal for heating need to be replaced by more environment-friendly clean energy, and the application of heating devices such as electric heating devices and solar units is imperative.
In the single heat pump heating project, the heat pump heating effect is greatly influenced by the weather temperature, and particularly, the heat pump has an operation range, so that the application range of the single heat pump project is limited.
The price of the electric charge of the independent electric heating project is lower and lower along with the country, but the operation cost of the electric heating project directly used is still higher than that of coal or firewood, so that many common people cannot bear the electric charge of heating.
The advantages and disadvantages of the single heating mode exist, peak-valley electricity prices exist in many regions in China, a heat pump system is limited by air temperature and equipment cost, electric heating is limited by electricity charge, a solar unit and wind energy are limited by climate and land occupation, and an electricity storage project is limited by the cost of electricity storage equipment. Each equipment is advantageous for a certain situation, but the whole heating season is a continuous process, and the large-scale heating disadvantage of a single equipment is particularly prominent, and either the initial investment is too large or the operating cost is high.
Aiming at the problems in the prior art, a novel double-water-tank multi-energy heating system is researched and designed, so that the problem in the prior art is very necessary to be solved.
Disclosure of Invention
The separate electric heating proposed according to the prior art suffers from higher electricity consumption cost, resulting in higher operating cost; the single solar unit supplies heat, the cost is low, but the stability is poor; the single heat pump heating system is provided with a double-water-tank multi-energy heating system in the face of the technical problems of poor heat capacity and the like in extreme weather. The utility model discloses mainly change under the single heat source self advantage of electric heating project and the obvious prerequisite of inferior advantage to the coal, propose the multipotency source and combine high low temperature two water tank heating system and heat the end of heating, reach energy-conserving effect and guarantee extreme weather normal heating demand.
The multi-energy heating system can reduce the cost of initial investment, and the operation cost is slightly higher than that of a single heat pump system. The heat pump heating operation cost is low, the initial heating investment of the electric boiler is the lowest, the heating operation cost of the solar unit is the lowest, but the heating stability of the solar unit is the worst. The highest outlet water temperature of the heat pump is about 55 ℃, and the outlet water temperatures of the electric boiler and the solar unit can reach more than 90 ℃, so that the multi-energy heating system needs to pay attention to the mutual influence among heating devices, and the heat pump cannot participate in system heating finally due to the mutual interference. When the heat pump cop is higher than the peak electricity/valley electricity price, the heat pump heating operation cost is lower than the heat storage cost of the valley electricity at the peak electricity.
The utility model discloses a technical means as follows:
a dual-tank multi-energy heating system includes: the system comprises a heat pump unit, an electric boiler, a solar unit, a low-temperature water tank, a high-temperature heat storage water tank, a plate heat exchanger, an electric boiler circulating pump, a solar unit circulating pump, a primary circulating pump, an electric adjusting two-way valve group and a control unit;
further, the input end and the output end of the heat pump unit are respectively communicated with the output end and the input end of the low-temperature water tank through pipelines; specifically, the heat pump unit includes: the heat pump system comprises a heat pump host A, a heat pump circulating pump A, a heat pump host B and a heat pump circulating pump B; the heat pump host A and the heat pump circulating pump A are connected with the heat pump host B and the heat pump circulating pump B in series one to one and then connected with the low-temperature water tank in parallel, so that the water quantity requirement of heat pump circulation is met, and the heat pump can fully play a role.
Furthermore, the input end of the electric boiler is communicated with the output end of the high-temperature heat storage water tank through a pipeline and an electric boiler circulating pump, and the output end of the electric boiler is communicated with the input end of the high-temperature heat storage water tank through a pipeline; the electric heater directly communicates with high temperature heat storage water tank, directly heats the water in the high temperature heat storage water tank, can make the temperature reach 90 ℃, simultaneously with low temperature water tank relatively independent, can not influence the heat pump normal work because of high temperature heat storage water tank temperature is too high, when the heat pump operation cop > peak electricity/millet electricity price, start the heat pump direct heating, the heat that this moment millet electricity was stored is used for the weather that the temperature is low excessively and uses.
Furthermore, the input end of the solar unit is communicated with the output ends of the low-temperature water tank and the high-temperature heat storage water tank through a pipeline, a solar unit circulating pump and an electric adjusting two-way valve set, and the output end of the solar unit is communicated with the input ends of the low-temperature water tank and the high-temperature heat storage water tank through pipelines;
furthermore, the solar unit can heat and store heat for the low-temperature water tank and the high-temperature heat storage water tank through a solar unit circulating pump and an electric adjusting two-way valve set combined mode, a part of operating cost can be saved because solar energy is used in the heating process of the solar unit, and the low-temperature water tank and the high-temperature heat storage water tank can be heated and stored with energy due to the existence of the electric adjusting two-way valve;
furthermore, a temperature sensor is arranged on a pipeline connected with the solar unit, whether the solar unit has an icing risk or not is judged according to a temperature measurement value, if a circulating pump of the solar unit is started at risk for circulation, and if an anhydrous solar heat collecting pipe is adopted, water in the solar unit can be emptied into a water tank so as to prevent the pipeline from icing and causing the damage of the solar unit.
Furthermore, a water replenishing port is arranged at the upper part of the low-temperature water tank and is connected with external water supply equipment through a pipeline;
furthermore, a water softener and a system water supply electric valve are arranged on the pipeline; the system water supply electric valve is connected in parallel with a water supply standby valve for standby supply of the system water supply electric valve.
Furthermore, the output end of the high-temperature heat storage water tank is connected with a constant-pressure water supplementing device through a pipeline, constant-pressure water supplementing is carried out on a tail pipe network, a water flow detection device is installed on a water supplementing pipe, the problem that whether a tail pipe bursts or not is judged according to feedback data, and timely feedback and timely rush repair are carried out.
Further, be provided with on the high temperature heat storage water tank and reserve the interface for be connected with old high temperature equipment and other high temperature heat source reservation units, when can carry out once the design to the transformation project that the fund is not enough, progressively increase equipment fixing, progressively eliminate the mode of former equipment, the guarantee effect that prevention extreme weather appears can also be played to former equipment simultaneously.
Furthermore, liquid level devices and temperature measuring devices are arranged in the low-temperature water tank and the high-temperature heat storage water tank, the liquid level devices are used for controlling the opening and closing of the water replenishing valve, and meanwhile, whether the liquid level exceeds a warning line or not is detected, so that whether the water replenishing valve is damaged or not is judged.
Further, the input end of the plate heat exchanger is communicated with the output ends of the low-temperature water tank and the high-temperature heat storage water tank through a pipeline, a primary circulating pump and an electric adjusting two-way valve set;
further, a double-water-tank mutual overflow pipe is arranged between the low-temperature water tank and the high-temperature heat storage water tank;
further, the control unit adopts but not only is limited to PLC control system, through cable and heat pump unit, electric boiler, solar energy unit, electric boiler circulating pump, solar energy unit circulating pump, primary circulating pump, the two-way valves of electronic regulation electricity UNICOM.
Furthermore, a pipeline connected with tail end backwater is additionally arranged at the input end of the primary side of the plate heat exchanger, a secondary network water injection valve is arranged on the pipeline and is used for injecting water into a tail end pipe network, and a water supplementing pipeline is additionally arranged due to the fact that the flow of the constant-pressure water supplementing device is limited, and the tail end water supplementing time is long.
Further, a secondary circulating pump and a dirt separator are arranged on a tail end water return pipeline at the secondary side input end of the plate heat exchanger.
Further, the plate heat exchanger carries out primary side water supply temperature adjustment on the plate heat exchanger according to the requirements of the tail end of the system through the combination of a primary circulating pump and an electric adjustment two-way valve group, when the requirements of the tail end are not large, heat is directly exchanged for a heat source in the low-temperature water tank, when the temperature of the low-temperature water tank is reduced to a set temperature, the electric adjustment two-way valve group is adjusted, part of return water directly returns to the high-temperature heat storage water tank, the water level of the high-temperature heat storage water tank is higher than the mutual overflow pipe of the two water tanks, and at the moment, part of high-temperature hot water flows into the low-temperature water tank to be mixed; if the terminal demand increases, open the electric control two-way valves of high temperature heat storage water tank delivery port and low temperature water tank delivery port and mix, improve the temperature that gets into plate heat exchanger to improve the purpose of plate heat exchanger secondary side temperature, if meet extreme weather and come, adjust low temperature water tank and high temperature heat storage water tank outlet valve opening degree, satisfy terminal demand to the heat.
Further, the electronic two-way valve group of adjusting includes: valve a, valve B, valve C, valve D, valve E, valve F, valve G and valve H;
further, the valve A is arranged on a pipeline between the output end of the solar unit and the input end of the low-temperature water tank;
further, the valve B is arranged on a pipeline between the output end of the solar unit and the input end of the high-temperature energy storage water tank;
further, the valve C is arranged on a pipeline between the primary side output end of the plate heat exchanger and the input end of the low-temperature water tank;
furthermore, the valve D is arranged on a pipeline between the output end of the primary side of the plate heat exchanger and the input end of the high-temperature energy storage water tank;
further, a valve E is arranged on a pipeline between the output end of the low-temperature water tank and the input end of the primary circulating pump;
further, a valve F is arranged on a pipeline between the output end of the high-temperature energy storage water tank and the input end of the primary circulating pump;
further, a valve G is arranged on a branch pipeline between the output end of the low-temperature water tank and the circulating pump of the solar unit;
further, the valve H is arranged on a branch pipeline between the output end of the high-temperature energy storage water tank and the solar unit circulating pump.
The utility model discloses a theory of operation does:
the heat pump system generally has the highest outlet water temperature reaching 50-55 ℃, the efficiency of the heat pump is more than 1 within the range of the operation curve of the heat pump, so that the energy consumption of the heat pump generating the same heat is always lower than that of electric heating equipment, but when the return water temperature exceeds the highest outlet water temperature of the current heat pump, the heat pump cannot work, if a heat storage mode is adopted, the water temperature needs to be increased to 80-90 ℃ for heat storage due to the limitation of the size of a water tank, the volume of the water tank is reduced by utilizing large temperature difference, so that the heat pump cannot operate in the second day, and the lowest operation cost cannot be achieved.
Therefore, a double-water-tank system is adopted to divide high-temperature hot water and low-temperature hot water, and mutual influence is avoided. Because the efficiency of the electric boiler is lower than that of the heat pump under the normal condition, the electric boiler is only used for secondary temperature rise and heat storage or extreme weather response. The solar energy unit is only the charges of electricity of water pump because of its working costs, and the intensification scope to water is big moreover, can utilize the time difference to heat respectively two water tanks daytime, realizes heating respectively through the regulation of solar circulating pump and electric control two-way valve.
The water mixing heat exchanger unit can adjust the water temperature according to the requirements of the tail end by adjusting the primary circulating pump and the electric adjusting two-way valve. The low-temperature hot water overflows to the low-temperature water tank by adopting the heat storage water tank to maintain the constant temperature of the low-temperature water tank, and is directly pumped into the low-temperature water tank for heat exchange. The medium-temperature hot water is pumped and mixed by adopting a low-temperature water tank and a high-temperature heat storage water tank together, and then heat exchange is carried out. High-temperature hot water is directly pumped into the high-temperature heat storage water tank for heat exchange, the ambient temperature reaches the extreme weather standard at the moment, and the low-temperature water tank and the heat pump system start anti-freezing circulation to ensure the safety of the heat pump unit and the solar unit equipment.
Aiming at old equipment transformation projects, original equipment is connected into a new system, equipment can be replaced gradually according to fund and policy time requirements, however, newly designed matched equipment needs to be invested once, host equipment can be increased gradually, the original equipment is temporarily reserved for sharing load tasks in the equipment increasing process, and meanwhile, the original equipment can also cope with emergency situations in extreme weather.
The use sequence of the heat pumps in the system is prioritized, whether the heat pumps are only used for heat supply can be determined according to the ratio of the local peak-valley electricity prices, and when the weather is fine and the heat pumps cop is larger than the peak electricity price/valley electricity price, the running cost of the heat pumps is less than the cost of heat storage of electric heating during the valley electricity period.
And regulating and controlling the water temperature according to the requirements of the tail end.
The advantages of the multi-energy equipment are utilized for complementation, and the heating disadvantage of single equipment is solved.
The situation that part of projects cannot finish investment at one time is solved.
The purpose of ensuring the heating temperature to reach the standard in extreme weather is achieved according to the existing conditions.
The utility model discloses a working process does:
firstly, cleaning a system: after the system is installed, a water replenishing standby valve is opened to inject water into the system, then a system valve is adjusted to flush the system, and finally impurities in a water tank are emptied;
secondly, filling the system with water: opening a sensor of a system water supply electric valve, enabling the system water supply electric valve to be linked with the water levels of the low-temperature water tank and the high-temperature heat storage water tank, simultaneously opening a secondary network water injection valve to inject water to the tail end, and closing the secondary network water injection valve after the water injection is finished;
thirdly, starting equipment to heat a water system: wherein the operating scheme differs according to different time points and field conditions.
According to the first scheme, after the system is prepared, a certain time is left for formal heating, a circulating pump of a solar unit is started, a valve A and a valve G are started, a valve B and a valve H are closed, system circulating water passes through the solar unit and heats a low-temperature water tank, the valve A and the valve G are closed when the low-temperature water tank reaches the design temperature 4, the valve B and the valve H are started, and the system circulating water passes through the solar unit and heats a high-temperature heat storage water tank until the high-temperature heat storage water tank is heated to the specified temperature. (only day running)
According to the second scheme, after the system is prepared, heat supply is required immediately, a solar unit circulating pump is started, a valve A and a valve G are started, a valve B and a valve H are closed, the low-temperature water tank is heated, a heat pump host is started, and a heat pump circulating pump is started to heat the low-temperature water tank; at this point, valve E and valve C are ready to be opened, and the primary circulation pump is ready to be opened to supply heat to the tail end.
Fourthly, the system operates, and the tail end starts to heat; starting a constant-pressure water replenishing device to adjust the pressure of a tail end system, opening a valve E and a valve C, closing a valve F and a valve D, starting a primary circulating pump and a secondary circulating pump, and starting primary heating; at the moment, different operation modes are switched according to the actual situation on site.
In the first mode, in the early stage of a heating season, in daytime and in sufficient sunlight, a circulating pump of a solar unit is started, a valve A and a valve G are started, a valve B and a valve H are closed, system circulating water passes through the solar unit to heat a low-temperature water tank, when the low-temperature water tank reaches a low-temperature set temperature, the opening degree of electric valves of the valve A, the valve B, the valve G and the valve H is adjusted, the set temperature of the low-temperature water tank is maintained, and the rest heat is stored in a high-temperature heat storage water tank until the solar unit cannot continuously generate heat, and the circulating pump of the solar unit is stopped; in the mode state, keeping the valve E and the valve C open, closing the valve F and the valve D, and opening the primary circulating pump and the secondary circulating pump; at night, opening a valve E and a valve C of the low-temperature water tank, and opening a valve F and a valve D when the low-temperature water tank is lowered to a set temperature, wherein the outlet water of the low-temperature water tank and the outlet water of the high-temperature heat storage water tank are mixed to reach the set water supply temperature and enter the plate heat exchanger to supply heat to the tail end; and if the water temperatures of the low-temperature water tank and the high-temperature heat storage water tank are lower than the lower limit set temperature, starting the heat pump host to maintain the water temperature of the system to be constant.
And in the second mode, when the cloudy day or the bad weather condition is met, the circulating pump of the solar unit is started, and the solar unit is allowed to absorb light and heat as much as possible. Starting a heat pump host machine, starting a heat pump circulating pump, starting a valve A, a valve C, a valve D, a valve E, a valve F and a valve G, and closing a valve B and a valve H; at the moment, the solar unit system absorbs heat as much as possible and supplies the heat to the low-temperature water tank, the heat pump host carries out secondary heating on the basis, and water mixing is carried out through proportional adjustment of the valve E and the valve F to meet the design requirement and is conveyed to the tail end system; in the process, after the high-temperature heat storage water tank is subjected to water mixing operation, the temperature of the water is reduced to the temperature of the low-temperature water tank, and the low-temperature water tank and the high-temperature heat storage water tank are kept synchronously cooled.
Mode three, when meetting extreme weather, mode one and mode two's operation can't be with the temperature of low temperature water tank and high temperature heat storage water tank rise to the time of more than the lower limit temperature, start electric boiler circulating pump and electric boiler, heat high temperature heat storage water tank, through the regulation of governing valve E and valve F, the temperature of the water of control through the primary circulation pump, need enter the temperature of plate heat exchanger according to weather forecast and on-the-spot actual conditions control this moment, in the face of extreme weather, it has sufficient thermal supply to guarantee the end, let the end user indoor can be warm.
Fifthly, the system needs attention when running
1. An air source heat pump of a heat pump host needs anti-freezing protection, and a heat pump circulating pump needs heat preservation;
2. the temperature sensor detects the temperature of the solar unit, so that loss caused by icing of the pipeline is prevented;
3. the water flow sensor detects the starting time of the water flow sensor, and if the water flow sensor is started for a long time, the leakage point condition of the tail end system is indicated, and the tail end system needs to be searched and repaired in time;
4. the temperature is prejudged and adjusted according to weather forecast and sensors arranged on the periphery of the equipment, meanwhile, the indoor temperature condition of the tail end needs to be monitored, and the operating cost is reduced while the use requirement is met.
5. The solar unit system needs to consider the parallel connection of a plurality of groups, so that the damage is prevented from causing loss.
Sixth, compatibility of the System
The system is a double-water-tank secondary network system, and a plate heat exchanger is separated from the tail end, so that the pollution of the tail end to the whole water quality is reduced, the operating environment of equipment is poor, and the efficiency is reduced. The system can add various heat sources, the low-temperature heat source directly supplies heat to the low-temperature water tank, and the high-temperature heat source supplies heat to the high-temperature heat storage water tank; for the transformation project, the secondary side of the heat exchanger can be connected into an original pipe network, original high-temperature heating equipment is connected into old high-temperature equipment and other high-temperature heat source reserved (22) interfaces, the old equipment can be gradually disassembled, and if the early investment pressure is too large, the mode of once putting into the auxiliary equipment and then gradually putting into the host machine can be adopted.
Compared with the prior art, the utility model has the advantages of it is following:
1. the double-water-tank multi-energy heating system provided by the utility model integrates the advantages of low operation cost of the heat pump, low initial investment cost of the electric boiler, low solar heating cost and the like, and overcomes the disadvantages of insufficient heating capacity of the heat pump in extreme weather, high operation cost of the electric boiler and the like;
2. the utility model provides a two water tank multi-energy heating system, be equipped with the two water tank systems of low temperature water tank and high temperature heat storage water tank, can utilize millet electricity to carry out the secondary heating and heat-retaining to the hot water of heat pump output, can use solar energy to carry out the maintenance of temperature and intensification heat-retaining to the system simultaneously when the weather is clear;
3. the utility model provides a two water tank multipotency source heating system, each heating unit mutual independence, but can realize multipotency source mutual linkage and complementation through adjusting opening and closing of electronic regulation two-way valve simultaneously, when a heat source breaks down, the input that other heat sources can be according to actual conditions adjusting device satisfies the terminal heat supply demand, and whole heating system fail safe nature is higher;
4. the utility model provides a two water tank multipotency source heating system can require the condition to gradually replace original old equipment according to first side fund situation and relevant policy, reduces capital pressure.
In conclusion, the technical scheme of the utility model solves the problems that the independent electric heating in the prior art has higher electricity utilization cost, which leads to higher operation cost; the single solar unit supplies heat, the cost is low, but the stability is poor; the single heat pump is used for heating, and the problems of poor energy capacity and the like in the face of extreme weather are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a layout diagram of the present invention.
In the figure: 1-a, a heat pump host A1-B, a heat pump host B2, an electric boiler 3, a solar unit 4, a low-temperature water tank 5, a high-temperature heat storage water tank 6, a plate heat exchanger 7, a constant-pressure water supplementing device 8, a water softener 9, a dirt separator 10-a, a heat pump circulating pump A10-B, a heat pump circulating pump B11, an electric boiler circulating pump 12, a solar unit circulating pump 13, a primary circulating pump 14, a secondary circulating pump 15, a double-water-tank mutual overflow pipe 16, a system water supply electric valve 17, a water supplementing standby valve 18, an electric adjusting two-way valve set 18-a, a valve A18-B, a valve B18-C, a valve C18D, a valve D18-E, a valve E18-F, a valve F18-G, a valve G18-H, a valve H19, a secondary network water injection valve 20, a temperature sensor 21, a water flow detection device 22, old high-temperature equipment and other high-temperature heat source reserved units.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc., are usually based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, and in the case of not making a contrary explanation, these directional terms do not indicate and imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore, should not be interpreted as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
For ease of description, spatially relative terms such as "over … …", "over … …", "over … …", "over", etc. may be used herein to describe the spatial positional relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1, the utility model provides a two water tank multipotency source heating system includes: the system comprises a heat pump unit, an electric boiler 2, a solar unit 3, a low-temperature water tank 4, a high-temperature heat storage water tank 5, a plate heat exchanger 6, an electric boiler circulating pump 11, a solar unit circulating pump 12, a primary circulating pump 13, an electric adjusting two-way valve group 18 and a control unit;
the input end and the output end of the heat pump unit are respectively communicated with the output end and the input end of the low-temperature water tank 4 through pipelines; specifically, the heat pump unit includes: the system comprises a heat pump host A1-a, a heat pump circulating pump A10-a, a heat pump host B1-B and a heat pump circulating pump B10-B; the heat pump main machine A1-a and the heat pump circulating pump A10-a are connected with the heat pump main machine B1-B and the heat pump circulating pump B10-B in a one-to-one series mode and then connected with the low-temperature water tank 4 in parallel, the water quantity requirement of the heat pump circulation is met, and the heat pump can fully play a role.
The input end of the electric boiler 2 is communicated with the output end of the high-temperature heat storage water tank 5 through a pipeline and an electric boiler circulating pump 11, and the output end of the electric boiler is communicated with the input end of the high-temperature heat storage water tank 5 through a pipeline; the electric heating furnace 2 is directly communicated with the high-temperature heat storage water tank 5, water in the high-temperature heat storage water tank 5 is directly heated, the water temperature can reach 90 ℃, meanwhile, the electric heating furnace is relatively independent of the low-temperature water tank, and normal work of a heat pump cannot be influenced due to overhigh water temperature of the high-temperature heat storage water tank 5.
The input end of the solar unit 3 is communicated with the output ends of the low-temperature water tank 4 and the high-temperature heat storage water tank 5 through a pipeline, a solar unit circulating pump 12 and an electric adjusting two-way valve set 18, and the output end of the solar unit is communicated with the input ends of the low-temperature water tank 4 and the high-temperature heat storage water tank 5 through pipelines;
the solar unit 3 can heat and store heat for the low-temperature water tank 4 and the high-temperature heat storage water tank 5 through a solar unit circulating pump 12 and an electric adjusting two-way valve set 18 combined mode, a part of operating cost can be saved because the solar unit is used in the heating process of the solar unit 3, and the low-temperature water tank 4 and the high-temperature heat storage water tank 5 can be heated because of the existence of the electric adjusting two-way valve;
set up temperature sensor 20 on the pipeline that solar unit 3 is connected, judge whether there is the risk of freezing solar unit 3 according to the temperature measurement value, if open solar unit circulating pump 12 at risk and circulate, can empty the water in the solar unit 3 to the water tank in if adopt anhydrous solar energy collection pipe in for prevent that the pipeline from freezing and causing solar unit 3 to damage.
The upper part of the low-temperature water tank 4 is provided with a water replenishing port which is connected with external water supply equipment through a pipeline;
a water softener 8 and a system water supply electric valve 16 are arranged on the pipeline; the system water supply electric valve 16 is connected in parallel with a water supply standby valve 17 for standby supply of the system water supply electric valve 16.
The output end of the high-temperature heat storage water tank 5 is connected with a constant-pressure water supplementing device 7 through a pipeline, constant-pressure water supplementing is carried out on a tail end pipe network, a water supplementing pipe is provided with a water flow detection device 21, whether a tail end pipeline has a pipeline bursting problem or not is judged according to feedback data, and timely feedback and timely rush repair are carried out.
Be provided with on the high temperature heat storage water tank 5 and reserve the interface for reserve (22) unit with old high temperature equipment and other high temperature heat sources and be connected, when can carrying out once design to the transformation project that the fund is not enough, progressively increase equipment fixing, progressively eliminate the mode of former equipment, the guarantee effect that prevention extreme weather appears can also be played to former equipment simultaneously.
Liquid level devices and temperature measuring devices are arranged in the low-temperature water tank 4 and the high-temperature heat storage water tank 5, the liquid level devices are used for controlling the opening and closing of the water replenishing valve, and meanwhile, whether the liquid level exceeds a warning line or not is detected, and whether the water replenishing valve is damaged or not is judged.
The input end of the plate heat exchanger 6 is communicated with the output ends of the low-temperature water tank 4 and the high-temperature heat storage water tank 5 through a pipeline, a primary circulating pump 13 and an electric adjusting two-way valve set 18;
a double-water-tank mutual overflow pipe 15 is arranged between the low-temperature water tank 4 and the high-temperature heat storage water tank 5;
the control unit adopts but not only is limited to PLC control system, through cable and heat pump unit, electric boiler 2, solar energy unit 3, electric boiler circulating pump 11, solar energy unit circulating pump 12, primary circulating pump 13, the two-way valves of electronic regulation 18 electricity UNICOM.
A pipeline connected with terminal backwater is additionally arranged at the input end of the primary side of the plate heat exchanger 6, a secondary network water injection valve 19 is arranged on the pipeline and is used for injecting water into a terminal pipe network, and a water supplementing pipeline is additionally arranged due to the fact that the flow of the constant-pressure water supplementing device 7 is limited, and the terminal water supplementing time is long.
A secondary circulating pump 14 and a dirt separator 9 are arranged on a tail end water return pipeline at the secondary side input end of the plate heat exchanger 6.
The plate heat exchanger 6 adjusts the temperature of primary side water supply of the plate heat exchanger 6 according to the requirements of the tail end of a system through the combination of a primary circulating pump 13 and an electric adjusting two-way valve group 18, when the requirements of the tail end are not large, heat is directly exchanged for a heat source in the low-temperature water tank 4, when the temperature of the low-temperature water tank 4 is reduced to a set temperature, the electric adjusting two-way valve group 18 is adjusted, part of return water directly returns to the high-temperature heat storage water tank 5, the water level of the high-temperature heat storage water tank 5 is higher than the mutual overflow pipe of the two water tanks, and part of high-temperature hot water flows into the low-temperature water tank 4 to be mixed; if the end demand increases, open the low temperature hot water of 5 delivery ports of high temperature heat storage water tank and 4 delivery ports of low temperature water tank and mix, improve the temperature that gets into plate heat exchanger 6 to improve the purpose of 6 secondary side temperatures of plate heat exchanger, if meet extreme weather and come, adjust 5 outlet valve opening degrees of low temperature water tank 4 and high temperature heat storage water tank, satisfy end demand to the heat.
The electrically regulated two-way valve set 18 includes: valve A18-a, valve B18-B, valve C18-C, valve D18-D, valve E18-E, valve F18-F, valve G18-G, and valve H18-H;
the valve A18-a is arranged on a pipeline between the output end of the solar unit 3 and the input end of the low-temperature water tank 4;
the valve B18-B is arranged on a pipeline between the output end of the solar unit 3 and the input end of the high-temperature energy storage water tank 5;
the valve C18-C is arranged on a pipeline between the output end of the primary side of the plate heat exchanger 6 and the input end of the low-temperature water tank 4;
the valve D18-D is arranged on a pipeline between the output end of the primary side of the plate heat exchanger 6 and the input end of the high-temperature energy storage water tank 5;
the valve E18-E is arranged on a pipeline between the output end of the low-temperature water tank 4 and the input end of the primary circulating pump 13;
the valves F18-F are arranged on a pipeline between the output end of the high-temperature energy storage water tank 5 and the input end of the primary circulating pump 13;
the valve G18-G is arranged on a branch pipeline between the output end of the low-temperature water tank 4 and the solar energy unit circulating pump 12;
the valves H18-H are arranged on branch pipelines between the output end of the high-temperature energy storage water tank 5 and the solar unit circulating pump 12.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.
Claims (10)
1. The utility model provides a two water tank multipotency source heating system which characterized in that:
the double-water-tank multi-energy heating system comprises: the system comprises a heat pump unit, an electric boiler (2), a solar unit (3), a low-temperature water tank (4), a high-temperature heat storage water tank (5), a plate heat exchanger (6), an electric boiler circulating pump (11), a solar unit circulating pump (12), a primary circulating pump (13), an electric adjusting two-way valve set (18) and a control unit;
the input end and the output end of the heat pump unit are respectively communicated with the output end and the input end of the low-temperature water tank (4) through pipelines;
the input end of the electric boiler (2) is communicated with the output end of the high-temperature heat storage water tank (5) through a pipeline and an electric boiler circulating pump (11), and the output end of the electric boiler is communicated with the input end of the high-temperature heat storage water tank (5) through a pipeline;
the input end of the solar unit (3) is communicated with the output ends of the low-temperature water tank (4) and the high-temperature heat storage water tank (5) through a pipeline, a solar unit circulating pump (12) and an electric adjusting two-way valve set (18), and the output end of the solar unit is communicated with the input ends of the low-temperature water tank (4) and the high-temperature heat storage water tank (5) through pipelines;
the input end of the plate heat exchanger (6) is communicated with the output ends of the low-temperature water tank (4) and the high-temperature heat storage water tank (5) through a pipeline, a primary circulating pump (13) and an electric adjusting two-way valve set (18);
a double-water-tank mutual overflow pipe (15) is arranged between the low-temperature water tank (4) and the high-temperature heat storage water tank (5);
the control unit adopts but not only is limited to a PLC control system, and is electrically communicated with the heat pump unit, the electric boiler (2), the solar unit (3), the electric boiler circulating pump (11), the solar unit circulating pump (12), the primary circulating pump (13) and the electric adjusting two-way valve group (18) through cables.
2. The dual-tank multi-energy heating system according to claim 1, characterized in that:
the heat pump unit includes: a heat pump host A (1-a), a heat pump circulating pump A (10-a), a heat pump host B (1-B) and a heat pump circulating pump B (10-B);
the heat pump main machine A (1-a) and the heat pump circulating pump A (10-a) are connected with the heat pump main machine B (1-B) and the heat pump circulating pump B (10-B) in series one to one and then connected with the low-temperature water tank (4) in parallel, so that the water quantity requirement of heat pump circulation is met, and the heat pump can fully play a role.
3. The dual-tank multi-energy heating system according to claim 1, characterized in that:
the electric regulation two-way valve set (18) comprises: valve A (18-a), valve B (18-B), valve C (18-C), valve D (18-D), valve E (18-E), valve F (18-F), valve G (18-G), and valve H (18-H);
the valve A (18-a) is arranged on a pipeline between the output end of the solar unit (3) and the input end of the low-temperature water tank (4);
the valve B (18-B) is arranged on a pipeline between the output end of the solar unit (3) and the input end of the high-temperature heat storage water tank (5);
the valve C (18-C) is arranged on a pipeline between the primary side output end of the plate heat exchanger (6) and the input end of the low-temperature water tank (4);
the valve D (18-D) is arranged on a pipeline between the output end of the primary side of the plate heat exchanger (6) and the input end of the high-temperature heat storage water tank (5);
the valve E (18-E) is arranged on a pipeline between the output end of the low-temperature water tank (4) and the input end of the primary circulating pump (13);
the valve F (18-F) is arranged on a pipeline between the output end of the high-temperature heat storage water tank (5) and the input end of the primary circulating pump (13);
the valve G (18-G) is arranged on a branch pipeline between the output end of the low-temperature water tank (4) and the solar unit circulating pump (12);
the valve H (18-H) is arranged on a branch pipeline between the output end of the high-temperature heat storage water tank (5) and the solar unit circulating pump (12).
4. The dual-tank multi-energy heating system according to claim 1, characterized in that:
solar unit (3) through solar unit circulating pump (12) and electric regulation two-way valve group (18) compound mode can heat and the heat-retaining low temperature water tank (4) and high temperature heat storage water tank (5), because of the solar unit (3) heating process use be solar unit, can save partly working costs, can heat low temperature water tank (4) and high temperature heat storage water tank (5) because of the existence of electric regulation two-way valve again.
5. The dual-tank multi-energy heating system according to claim 4, characterized in that:
the pipeline that solar unit (3) are connected on set up temperature sensor (20), judge whether there is the risk of freezing solar unit (3) according to the temperature measurement value, if open solar unit circulating pump (12) at risk and circulate, can empty the water in solar unit (3) to the water tank in if adopt anhydrous solar energy collection pipe in for prevent that the pipeline from freezing and causing solar unit (3) to damage.
6. The dual-tank multi-energy heating system according to claim 5, characterized in that:
the upper part of the low-temperature water tank (4) is provided with a water replenishing port which is connected with external water supply equipment through a pipeline;
the pipeline is provided with a water softener (8) and a system water supply electric valve (16);
the system water supply electric valve (16) is connected with a water supply standby valve (17) in parallel and used for supplying water to the system water supply electric valve (16) for standby.
7. The dual-tank multi-energy heating system according to claim 4, characterized in that:
the output of high temperature heat storage water tank (5) have level pressure moisturizing device (7) through the tube coupling, carry out the level pressure moisturizing to terminal pipe network, moisturizing pipe installation rivers detection device (21), whether take place the problem that the pipeline bursts according to feedback data judgement terminal pipeline, timely feedback is in time salvageed.
8. The dual-tank multi-energy heating system according to claim 7, characterized in that:
and a reserved interface is arranged on the high-temperature heat storage water tank (5) and is used for being connected with old high-temperature equipment and other high-temperature heat source reserved units (22).
9. The dual-tank multi-energy heating system of claim 4, wherein:
low temperature water tank (4) and high temperature heat storage water tank (5) inside all be equipped with liquid level device and temperature measurement device, liquid level device is used for controlling opening and closing of moisturizing valve, detects whether the liquid level surpasss the warning line simultaneously, judges whether the moisturizing valve takes place to damage.
10. The dual-tank multi-energy heating system according to claim 3, characterized in that:
a pipeline connected with tail end backwater is additionally arranged at the primary side input end of the plate type heat exchanger (6), a secondary network water injection valve (19) is arranged on the pipeline and is used for injecting water into a tail end pipe network, and a water supplementing pipeline is additionally arranged due to the fact that the flow of the constant-pressure water supplementing device (7) is limited and the tail end water supplementing time is long;
and a secondary circulating pump (14) and a dirt separator (9) are arranged on a tail end water return pipeline at the secondary side input end of the plate heat exchanger (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220926296.XU CN217584599U (en) | 2022-04-20 | 2022-04-20 | Double-water-tank multi-energy heating system |
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|---|---|---|---|
| CN202220926296.XU CN217584599U (en) | 2022-04-20 | 2022-04-20 | Double-water-tank multi-energy heating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117739518A (en) * | 2024-02-20 | 2024-03-22 | 辽宁省龙立蓝天环保科技有限公司 | Alcohol hydrogen directly-heated boiler |
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2022
- 2022-04-20 CN CN202220926296.XU patent/CN217584599U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117739518A (en) * | 2024-02-20 | 2024-03-22 | 辽宁省龙立蓝天环保科技有限公司 | Alcohol hydrogen directly-heated boiler |
| CN117739518B (en) * | 2024-02-20 | 2024-04-16 | 辽宁省龙立蓝天环保科技有限公司 | Alcohol hydrogen directly-heated boiler |
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Address after: 116600 No. 8 Songlan Street, Dalian Economic and Technological Development Zone, Liaoning Province Patentee after: Bingshan Songyang Refrigerator System (Dalian) Co.,Ltd. Address before: No. 8 Songlan Street, Economic and Technological Development Zone, Dalian City, Liaoning Province, 116000 Patentee before: PANASONIC REFRIGERATOR SYSTEM (DALIAN) CO.,LTD. |
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