Heat supply system based on heat load optimization scheduling

Abstract

The utility model provides a heat supply system based on heat load optimization scheduling. The heat supply system comprises a heat production module, a temperature adjusting module, a heat using module and a circulating pump which are sequentially communicated in the water flow direction. A series pipeline between the heat production module and the heat utilization module is defined as a heat supply pipeline, and a series pipeline between the heat utilization module and the heat production module is defined as a liquid return pipeline; the heat supply system further comprises an acquisition module, the acquisition module comprises a room temperature sensor, a water temperature sensor and a control platform, the room temperature sensor is arranged on the heat utilization module, and the water temperature sensor is arranged on the heat generation module. According to the heat supply system based on heat load optimization scheduling, the room temperature sensor and the water temperature sensor continuously monitor the temperature, the control platform sends signals to the heat production module and the temperature adjusting module according to collected data for adjustment, and automatic adjustment of the water temperature is achieved according to changes of dynamic heat loads. And the timeliness and the stability of water temperature adjustment are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heating, and in particular relates to a heating system based on heat load optimization scheduling. Background Art

[0002] In order to ensure that the heat supply meets the user's heat demand, the heating system needs to adjust the supply and return water temperature, flow rate and other parameters in real time. Parameter adjustment is based on the heat load. Heat load refers to the energy required for cooling or heating a building. The size of the heat load determines the heat demand of the building. Therefore, heat load information needs to be collected during heating.

[0003] However, the current centralized heating system has the problem of mismatch between heat supply and heat demand. In actual use, it will cause untimely and uneven heat supply, resulting in unmet heating needs of users. Timely human intervention and manual adjustment are required, which increases the workload of staff. Failure to intervene in the heating system in time will cause unstable heating and affect the user experience. Conventional heat load collection is done by users filling in information on their own or staff collecting information on site. Due to the uncontrollability of user actions, the information collection cycle is long and the regulation is not timely, which affects the timeliness and stability of heating regulation. Utility Model Content

[0004] The embodiment of the utility model provides a heating system based on heat load optimization scheduling, aiming to solve the technical problems in the prior art of untimely collection of heat load information, the need for manual intervention in heating regulation, and unstable heating.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] Provided is a heating system based on heat load optimization scheduling, comprising a heat generating module, a temperature regulating module, a heat using module and a circulating pump connected in sequence along a water flow direction; a series pipeline between the heat generating module and the heat using module is defined as a heat delivery pipeline, and a series pipeline between the heat using module and the heat generating module is defined as a liquid return pipeline;

[0007] The heating system also includes a collection module, which includes a room temperature sensor, a water temperature sensor and a control platform. The room temperature sensor is arranged in the heat utilization module, the water temperature sensor is arranged in the heat generation module, and the control platform is respectively communicated with the room temperature sensor and the water temperature sensor.

[0008] In a possible implementation, the liquid return pipeline is also connected to a water replenishment pipeline.

[0009] In a possible implementation, the acquisition module also includes multiple collectors, and the multiple collectors are respectively arranged in the heat supply pipeline and the liquid return pipeline, and the multiple collectors are respectively communicatively connected to the control platform; the collectors are used to collect key data, and the key data include water supply flow, water supply pressure, return water flow, return water pressure, return water temperature and make-up water flow.

[0010] In a possible implementation, the heat-using module includes a plurality of parallel liquid outlets; the liquid return pipeline includes a first tube and a plurality of second tubes, the liquid inlet ends of the plurality of second tubes are respectively connected to the corresponding liquid outlets, the liquid outlet ends of the plurality of second tubes are respectively connected to the first tube in parallel, and the liquid outlet end of the first tube is connected to the liquid return end of the heat-generating module;

[0011] Each of the second pipes is provided with the circulation pump.

[0012] In a possible implementation, each of the circulation pumps is conductively connected to a frequency converter, and a plurality of the frequency converters are communicatively connected to the control platform.

[0013] In a possible implementation, the temperature control module includes a heating unit and a cooling unit, and the heat supply pipeline corresponds to the heating unit and the cooling unit to form a first heat exchange section and a second heat exchange section, respectively. The first heat exchange section is located downstream of the heat supply pipeline, and the second heat exchange section is located upstream of the heat supply pipeline. Either the heating unit or the cooling unit is turned on.

[0014] In one possible implementation, the heating unit includes a solar collector, a water storage tank, a heat exchange tube and a return pipe. The solar collector is connected to the water storage tank, and a temperature control device is provided on the solar collector. The heat exchange tube, the water storage tank and the return pipe are connected in sequence to form a water circulation passage. The temperature control device is used to control the drainage temperature of the solar collector; the heat exchange tube is attached to the first heat exchange section and exchanges heat with the flow medium in the first heat exchange section.

[0015] In one possible implementation, the cooling unit includes a cooling box, a cooling pump and a cooling pipe connected in series, the cooling box contains a cooling medium, and both ends of the cooling pipe are respectively connected to the cooling box; the cooling pipe is mounted on the outer periphery of the second heat exchange section and exchanges heat with the flow medium in the second heat exchange section.

[0016] In a possible implementation, the heat-using module includes a plurality of heat-using bodies connected in series; the liquid return pipeline includes a return pipe and a plurality of return branches connected in parallel, and both ends of the return branches are respectively connected to the corresponding heat-using bodies and the return pipes.

[0017] In a possible implementation, a plurality of heating units are provided and correspond one-to-one to the heat-using entities, and the heating units are provided at the heat inlet ends of the corresponding heat-using entities.

[0018] The heating system based on heat load optimization scheduling provided by the utility model, compared with the prior art, is characterized in that a room temperature sensor and a water temperature sensor are respectively arranged in the heat-using module and the heat-producing module, the water supply temperature and the water use temperature are collected and compared to generate a temperature difference, the water temperature of the heat-producing module is adjusted, and the temperature regulating module is used to assist in adjusting the water temperature, so that the water temperature of the heat module reaches the required temperature; the room temperature sensor and the water temperature sensor are respectively communicated and connected to the control platform, and there is no need for staff or users to manually collect data, which improves the automation and convenience of information collection and reduces labor intensity; the room temperature sensor and the water temperature sensor continuously monitor the temperature, and the control platform sends signals to the heat-producing module and the temperature regulating module according to the collected data for adjustment, and realizes automatic adjustment of the water temperature according to the change of dynamic heat load, which improves the timeliness and stability of water temperature adjustment and improves user experience; the water temperature of each module in the heating system can be collected in time, which improves the authenticity, reliability and availability of the data, and the water temperature of the heat module reaches the use requirement, and will not be overheated to cause energy waste, nor will it be too low to cause poor user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 A schematic diagram of the structure of a heating system based on heat load optimization scheduling provided in the first embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the assembly of the temperature increasing unit and the first heat exchange section used in the first embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the assembly of the cooling component and the second heat exchange section used in the first embodiment of the utility model;

[0023] Figure 4 A schematic diagram of the structure of a heating system based on heat load optimization scheduling provided in the second embodiment of the present utility model;

[0024] Figure 5 This is a schematic diagram of the structure of a heating system based on heat load optimization scheduling provided in Example 3 of the utility model.

[0025] Description of reference numerals:

[0026] 1. Heat generation module;

[0027] 2. heat delivery pipeline; 21. first heat exchange section; 22. second heat exchange section;

[0028] 3. Temperature control module; 31. Heating unit; 311. Solar collector; 312. Water storage tank; 313. Heat exchange tube; 314. Reflux tube; 32. Cooling unit; 321. Condenser; 322. Cooling box; 323. Cooling tube;

[0029] 4. Use heat module; 41. Use heat main body;

[0030] 5. Circulation pump;

[0031] 6. Liquid return pipeline; 61. First pipe; 62. Second pipe; 63. Water return pipe; 64. Water return branch pipe;

[0032] 7. Collection module; 71. Room temperature sensor; 72. Water temperature sensor; 73. Control platform; 74. Collector;

[0033] 8. Water supply pipeline;

[0034] 9. Frequency converter. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] It should be noted that the terms "length", "width", "height", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0037] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0039] Please also read Figures 1 to 5 , the heating system based on heat load optimization scheduling provided by the utility model is now described. The heating system based on heat load optimization scheduling includes a heat generating module 1, a temperature regulating module 3, a heat using module 4, and a circulating pump 5 which are sequentially connected along the water flow direction; the series pipeline between the heat generating module 1 and the heat using module 4 is defined as a heat delivery pipeline 2, and the series pipeline between the heat using module 4 and the heat generating module 1 is defined as a liquid return pipeline 6; the heating system also includes a collection module 7, and the collection module 7 includes a room temperature sensor 71, a water temperature sensor 72 and a control platform 73, the room temperature sensor 71 is arranged on the heat using module 4; the water temperature sensor 72 is arranged on the heat generating module 1; the control platform 73 is respectively connected to the room temperature sensor 71 and the water temperature sensor 72 for communication.

[0040] It should be noted that the heat-using module 4 is arranged in a user area, such as a company or a residential building, and the heat-using module 4 includes a plurality of heat-using units.

[0041] It should be noted that the heat generation module 1 uses a heating boiler, and uses coal or solar energy to heat the water in the heating boiler.

[0042] In a specific implementation, a flowing medium, which is water, flows in the heat delivery pipeline 2 and the liquid return pipeline 6, and heat is exchanged with the heat module 4 to generate heat.

[0043] Compared with the prior art, the heating system based on heat load optimization scheduling provided in this embodiment is provided with a room temperature sensor 71 and a water temperature sensor 72 in the heat using module 4 and the heat generating module 1, respectively, collects and compares the water supply temperature and the water use temperature to generate a temperature difference, adjusts the water temperature of the heat generating module 1, and uses the temperature regulating module 3 to assist in adjusting the water temperature, so that the water temperature of the heat module 4 reaches the required temperature; the room temperature sensor 71 and the water temperature sensor 72 are respectively connected to the control platform 73 for communication, and there is no need for the staff or the user to manually collect data, which improves the automation and convenience of information collection and reduces the labor intensity; the room temperature sensor 71 and the water temperature sensor 72 continuously monitor the temperature, and the control platform 73 sends a signal to the heat generating module 1 and the temperature regulating module 3 according to the collected data for adjustment, and realizes automatic adjustment of the water temperature according to the change of the dynamic heat load, which improves the timeliness and stability of the water temperature adjustment and improves the user experience; the water temperature of each module in the heating system can be collected in time, which improves the authenticity, reliability and availability of the data, and the water temperature of the heat module 4 reaches the use requirement, and will not be overheated to cause energy waste, nor too low to cause poor user experience.

[0044] In some embodiments, see Figure 1 The return liquid pipeline 6 is also connected to a water replenishment pipeline 8. The water replenishment pipeline 8 can replenish flowing water into the return liquid pipeline 6 to ensure that the water volume in the heat generating module 1 is sufficient.

[0045] In some embodiments, referring to the figure, the acquisition module 7 also includes a plurality of collectors 74, which are respectively arranged in the heat delivery pipeline 2 and the liquid return pipeline 6, and are respectively connected to the control platform 73 in communication; the collector 74 is used to collect key data, and the key data includes water supply flow, water supply pressure, return water flow, return water pressure, return water temperature and water replenishment flow. The collector 74 can collect key data in time so that the control platform 73 can dynamically change the heat load, so that the control platform 73 can timely feedback the key data to ensure the stability of heating.

[0046] Optionally, the collector 74 may use a pressure transmitter and / or a flow generator.

[0047] In some embodiments, see Figure 4 and Figure 5, the heat module 4 includes a plurality of parallel liquid outlets; the liquid return pipeline 6 includes a first tube 61 and a plurality of second tubes 62, the liquid inlet ends of the plurality of second tubes 62 are respectively connected to the corresponding liquid outlets, the liquid outlet ends of the plurality of second tubes 62 are respectively connected in parallel to the first tube 61, and the liquid outlet end of the first tube 61 is connected to the liquid return end of the heat generating module 1; each second tube 62 is provided with a circulation pump 5. The arrangement of the plurality of second tubes 62 enables each second tube 62 to be connected to a user unit individually, and the flow rate and flow velocity in the second tube 62 are adjusted by the circulation pump 5, so that the user unit uses heat according to its own needs, thereby meeting the needs of the user. The plurality of second tubes 62 are connected in parallel, so that the heat use of each user unit is independent of each other, thereby reducing the maintenance cost.

[0048] In some embodiments, see Figure 5 Each circulating pump 5 is electrically connected to a frequency converter 9, and the multiple frequency converters 9 are respectively connected to the control platform 73. The frequency converter 9 can drive the circulating pump 5 to perform variable frequency operation. According to the dynamic change of the heat load, the multiple circulating pumps 5 are respectively operated by variable frequency or industrial frequency to reduce energy loss.

[0049] In specific implementation, a preset load is set in advance, and the actual load is obtained according to the acquisition module 7. When the actual load is less than 30% of the preset load, all frequency converters 9 are turned off, and the circulating pumps 5 are all operated at industrial frequency; when the actual load is 30%-60% of the preset load, half of the frequency converters 9 are turned on, and the corresponding circulating pumps 5 are all operated at variable frequency, and the other half of the circulating pumps 5 are operated at industrial frequency; when the actual load is more than 60% of the preset load, all frequency converters 9 are turned on, and the circulating pumps 5 are all operated at variable frequency.

[0050] In some embodiments, see Figure 1 The temperature adjustment module 3 includes a heating unit 31 and a cooling unit 32. The heat supply pipeline 2 corresponds to the heating unit 31 and the cooling unit 32 to form a first heat exchange section 21 and a second heat exchange section 22. The first heat exchange section 21 is located downstream of the heat supply pipeline 2, and the second heat exchange section 22 is located upstream of the heat supply pipeline 2. The heating unit 31 and the cooling unit 32 are selectively turned on. According to the data collected by the room temperature sensor 71 and the preset data, if the collected data is lower than the preset data, it is necessary to increase the water supply temperature of the heat generation module 1. During the period of increasing the water supply temperature, the heating unit 31 is used to assist in increasing the water temperature, which accelerates the temperature change speed of the water and the overall adjustment efficiency; if the collected data is higher than the preset data, it is necessary to reduce the water supply temperature of the heat generation module 1, and the cooling unit 32 is used to assist in cooling, so as to avoid the high temperature of the heat module 4 and affect the health of the user. The heating unit 31 and the cooling unit 32 adjust the water temperature respectively to avoid energy waste or failure to meet user needs. At the same time, the heat loss in the heat delivery process can be reduced, and the heating unit 31 can replenish heat in time to avoid different temperatures of each heat-using subject 41.

[0051] In some embodiments, see Figure 2 The heating unit 31 includes a solar collector 311, a water tank 312, a heat exchange pipe 313 and a return pipe 314. The solar collector 311 is connected to the water tank 312. A temperature control device is provided on the solar collector 311. The heat exchange pipe 313, the water tank 312 and the return pipe 314 are connected in sequence to form a water exchange circulation. The temperature control device is used to control the drainage temperature of the solar collector 311. The heat exchange pipe 313 is attached to the first heat exchange section 21 and heat exchanges with the flowing water in the heat exchange pipe 313. The solar collector 311 can collect the heat of the solar energy and store it in the water tank 312, and heat the water in the water tank 312 to the storage temperature. When the heating temperature of the user body 41 does not reach the predetermined temperature, the water tank 312 is opened, and the water in the water tank 312 exchanges heat with the first heat exchange section 21 through the heat exchange pipe 313, so as to increase the water temperature in the first heat exchange section 21 to meet the user's needs. Avoid the situation that the temperature of the heat user 41 close to the heat generating module 1 is high and the temperature of the heat user 41 far away from the heat generating module 1 is low in the entire heating line. Reduce the energy loss during transportation in the heat delivery pipeline 2 and ensure the uniformity of heat use of the heat module 4 as a whole.

[0052] During specific implementation, the water temperature in the water storage tank 312 is higher than the water temperature in the first heat exchange section 21 .

[0053] It should be noted that the number of heating units 31 corresponds to the number of heat users 41 , ensuring that the overall heating temperature of each heat user 41 is the same, avoiding different heating temperatures of each heat user 41 due to transportation losses, which affects the user experience.

[0054] In some embodiments, see Figure 3 The cooling unit 32 includes a cooling box 322, a cooling pump 321 and a cooling pipe 323 which are connected in series. The cooling box 322 contains a cooling medium. Both ends of the cooling pipe 323 are connected to the cooling box 322. The cooling pipe 323 is sleeved on the outer periphery of the second heat exchange section 22 and exchanges heat with the flowing medium in the second heat exchange section 22. The cooling pump 321 allows the cooling water to form a water cycle. The temperature of the cooling medium is lower than the water temperature of the second heat exchange section 22. The cooling medium exchanges heat with the second heat exchange section 22 in the cooling pipe 323, so that the temperature in the second heat exchange section 22 is reduced, thereby preventing the heating temperature in the heat-using body 41 from being too high and affecting the health of the user.

[0055] During specific implementation, the cooling medium is cooling water.

[0056] It should be noted that if the heating temperature is too high, it will easily accelerate the loss of water in the human body, causing dry and itchy throat, dry eyes, disrupting the physiological balance of the human body, and in severe cases affecting the viscosity of the human blood and causing a drop in blood pressure.

[0057] In some embodiments, the collector 74 includes a pressure transmitter and a flow generator, and the pressure transmitter and the flow generator are respectively connected to the control platform 73. The pressure transmitter can detect the water supply pressure, and the flow generator can detect the water supply flow rate and the return flow rate, so that the control platform 73 can make timely adjustments according to the dynamic changes of the heat load to ensure the stability of the heat supply.

[0058] In some embodiments, see Figure 5 The heat module 4 includes a plurality of heat users 41 connected in series; the liquid return pipeline 6 includes a water return pipe 63 and a plurality of parallel water return branches 64, and the two ends of the water return branches 64 are respectively connected to the corresponding heat users 41 and the water return pipe 63. Each water return branch 64 is connected in parallel to form a pair of water cycles that do not affect each other. The circulation pump 5 can be adjusted accordingly according to the needs of different heat users 41 to change the heating temperature, which increases the flexibility of use and improves the user experience.

[0059] In some embodiments, see Figure 5 There are multiple heating units 31, which correspond to the heat-using main body 41 one by one. The heating unit 31 is arranged at the heat inlet end of the corresponding heat-using main body 41. The heating unit 31 can perform secondary heating on the circulating water flowing through according to the change of heat load, so as to ensure that the water temperature flowing to the heat-using main body 41 meets the use requirements.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heating system based on heat load optimization scheduling, characterized in that: It includes a heat generating module, a temperature regulating module, a heat using module and a circulating pump which are connected in sequence along the water flow direction; the series pipeline between the heat generating module and the heat using module is defined as a heat supply pipeline, and the series pipeline between the heat using module and the heat generating module is defined as a liquid return pipeline; The heating system also includes a collection module, which includes a room temperature sensor, a water temperature sensor and a control platform. The room temperature sensor is arranged in the heat utilization module, the water temperature sensor is arranged in the heat generation module, and the control platform is respectively communicated with the room temperature sensor and the water temperature sensor.

2. The heating system based on heat load optimization scheduling according to claim 1 is characterized in that: The liquid return pipeline is also connected with a water replenishment pipeline.

3. The heating system based on heat load optimization scheduling according to claim 2 is characterized in that: The acquisition module also includes multiple collectors, which are respectively arranged in the heat supply pipeline and the liquid return pipeline, and are respectively communicatively connected to the control platform; the collectors are used to collect key data, and the key data include water supply flow, water supply pressure, return water flow, return water pressure, return water temperature and make-up water flow.

4. The heating system based on heat load optimization scheduling according to claim 1, characterized in that: The heat-using module includes a plurality of parallel liquid outlets; the liquid return pipeline includes a first tube and a plurality of second tubes, the liquid inlet ends of the plurality of second tubes are respectively connected to the corresponding liquid outlets, the liquid outlet ends of the plurality of second tubes are respectively connected to the first tube in parallel, and the liquid outlet end of the first tube is connected to the liquid return end of the heat-generating module; Each of the second pipes is provided with the circulation pump.

5. The heating system based on heat load optimization scheduling according to claim 4 is characterized in that: Each of the circulation pumps is electrically connected to a frequency converter, and a plurality of the frequency converters are communicatively connected to the control platform.

6. The heating system based on heat load optimization scheduling according to claim 1, characterized in that: The temperature control module includes a heating unit and a cooling unit. The heat supply pipeline corresponds to the heating unit and the cooling unit to form a first heat exchange section and a second heat exchange section respectively. The first heat exchange section is located downstream of the heat supply pipeline, and the second heat exchange section is located upstream of the heat supply pipeline. Either the heating unit or the cooling unit is turned on.

7. The heating system based on heat load optimization scheduling according to claim 6, characterized in that: The heating unit includes a solar collector, a water storage tank, a heat exchange tube and a return pipe. The solar collector is connected to the water storage tank. A temperature control device is provided on the solar collector. The heat exchange tube, the water storage tank and the return pipe are connected in sequence to form a water circulation passage. The temperature control device is used to control the drainage temperature of the solar collector. The heat exchange tube is attached to the first heat exchange section and exchanges heat with the flow medium in the first heat exchange section.

8. The heating system based on heat load optimization scheduling according to claim 6, characterized in that: The cooling unit includes a cooling box, a cooling pump and a cooling pipe connected in series. The cooling box contains a cooling medium. Both ends of the cooling pipe are respectively connected to the cooling box. The cooling pipe is sleeved on the outer periphery of the second heat exchange section and exchanges heat with the flow medium in the second heat exchange section.

9. The heating system based on heat load optimization scheduling according to claim 6, characterized in that: The heat-using module comprises a plurality of heat-using bodies connected in series in sequence; the liquid return pipeline comprises a return water pipe and a plurality of return water branches connected in parallel, and the two ends of the return water branches are respectively connected to the corresponding heat-using bodies and the return water pipes.

10. The heating system based on heat load optimization scheduling according to claim 9, characterized in that: There are a plurality of heating units, which correspond to the heat-using entities one by one, and the heating units are arranged at the heat inlet ends of the corresponding heat-using entities.

Images