Double U-shaped heat-activated building envelope structure with cross-drilled holes and operation control method

Abstract

The present invention discloses a double U-shaped heat-activated building envelope structure with a cross-drilled hole, characterized in that it includes a wall matrix, a plurality of double U-shaped heat exchange pipelines and a temperature monitoring system, a plurality of cross-shaped drilled holes are arranged inside the wall matrix, each heat exchange pipeline is composed of a first U-shaped tube, a second U-shaped tube and a heat exchange medium, wherein the first U-shaped tube is placed in a vertical drilled hole of the cross-shaped drilled hole, the second U-shaped tube is placed in a horizontal drilled hole of the cross-shaped drilled hole, and the first U-shaped tube and the second U-shaped tube are fixed at the four end positions of the cross-shaped drilled hole by special fixings and U-tube fixing rubber strips. The heat-activated building envelope structure of the present invention can effectively solve the heat accumulation phenomenon widely existing inside the traditional heat-activated building envelope structure without intermittent control of the heat-activated building system, thereby achieving a higher utilization rate of natural energy and effectively reducing the corresponding initial investment and operating costs of the source end and the pumping system.

Description

Technical Field

[0001] The invention relates to the technical field of building enclosure structures, in particular to a double U-shaped heat-activated building enclosure structure with cross-drilled holes and an operation control method. Background Art

[0002] The heat-activated building system is a highly efficient building energy-saving and energy supply system. However, due to the many limitations of the existing structural form and construction method, there are still some problems in this technology that urgently need to be solved. First, during the operation of the heat-activated building system, due to the mismatch between the system's heat injection capacity and the heat diffusion capacity of the envelope structure, there is a serious heat accumulation phenomenon in the surrounding area of ​​the embedded pipe. The heat accumulation phenomenon will continue to intensify with the continuous operation of the heat-activated building system, and the temperature difference between the heat injection temperature and the surrounding area of ​​the embedded pipe will decrease rapidly, and the system's heat injection capacity and operating efficiency will eventually drop significantly. Secondly, since the above-mentioned accumulated heat cannot be transferred to the surrounding area, especially the inner surface of the wall in time, the heat-activated building system has a poor response speed when dealing with the transient load in the building. Therefore, some buildings using the heat-activated building system still need to be equipped with additional transient load handling systems. In addition, the existence of the heat accumulation phenomenon will also cause the envelope structure to face the potential safety hazard of uneven heating for a long time, and the building envelope structure is also prone to cracks, which will affect the overall structural safety and user experience of the building. However, there is currently a lack of effective technical measures and methods to address the heat accumulation phenomenon in heat-activated building envelopes. The main countermeasure is to intermittently operate the heat-activated building system and rely on pulsed heat injection to alleviate the adverse effects of the heat accumulation phenomenon. Although intermittent operation has been proven to effectively increase the heat injection capacity of the heat-activated building system and reduce the system's operating power consumption, this control method is not suitable for all heat-activated building systems. For heat-activated building systems that use natural energy as a source of cold and heat, the inability to continue operating during periods of abundant natural energy in order to wait for the heat accumulation phenomenon to ease will result in a huge waste of natural energy. At the same time, in order to be able to inject enough natural energy when the heat accumulation phenomenon resumes, the above-mentioned system has to increase the pumping system power and source capacity, which greatly increases the cost of dealing with the heat accumulation phenomenon. Summary of the invention

[0003] The purpose of the present invention is to provide a single U-shaped thermally activated building envelope structure with a rotating drill hole and an operation control method in view of the technical defects existing in the prior art, which can effectively alleviate the generation and influence of heat accumulation in the thermally activated building envelope structure, improve the response speed of the thermally activated building envelope structure to transient loads, improve the problem of uneven heating of the thermally activated building envelope structure, and ultimately achieve the purpose of enhancing the heat injection capacity and operation efficiency of the thermally activated building system.

[0004] The technical solution adopted to achieve the purpose of the present invention is:

[0005] A double U-shaped heat-activated building envelope structure with a cross-drilled hole, characterized in that it includes a wall matrix, a plurality of double U-shaped heat exchange pipelines and a temperature monitoring system, wherein a plurality of cross-drilled holes are arranged inside the wall matrix, each of the heat exchange pipelines is composed of a first U-shaped tube and a second U-shaped tube and a heat exchange medium, wherein the first U-shaped tube is placed in a vertical drilled hole of the cross-drilled hole, and the second U-shaped tube is placed in a horizontal drilled hole of the cross-drilled hole, and the first U-shaped tube and the second U-shaped tube are fixed at four end positions of the cross-drilled hole by special fixings and U-tube fixing strips, so that ... A U-shaped tube and a second U-shaped tube are in close contact with the wall matrix; the temperature monitoring system consists of a first temperature sensor, a second temperature sensor and an external controller located inside the wall matrix, the first temperature sensor is located on the horizontal drilling extension line of the cross-shaped drilling, and the first temperature sensor is at an equal distance from the end of the horizontal drilling and the inner surface of the wall matrix, the second temperature sensor is located on the vertical drilling extension line of the cross-shaped drilling, and the distance between the second temperature sensor and the end of the vertical drilling is consistent with the distance between the first temperature sensor and the end of the horizontal drilling.

[0006] Preferably, the cross-section of the special fixing piece is cross-shaped, a threaded mounting hole is provided through the center of the cross-section, and vent holes are provided through the four sides of the cross-section. The four sides of the special fixing piece tightly press the U-tube fixing strip, so that the U-tube fixing strip presses the first U-shaped tube and the second U-shaped tube.

[0007] Preferably, an operation chamber cover is provided at one end close to the drilling hole outlet, and fluid pipeline inlets and outlets are provided at the upper and lower ends of the operation chamber cover.

[0008] Preferably, the outer sides of the wall matrix and the operating chamber are sequentially covered with an outer insulation layer and an outer plaster layer, and the corresponding inner sides are covered with an inner plaster layer.

[0009] Preferably, the first U-shaped tubes and the second U-shaped tubes in the plurality of heat exchange pipelines are respectively connected in series or in parallel with each other in the operation chamber cover.

[0010] An operation control method for a building envelope structure includes three modes: "intermittent heat injection, heat storage and heat release mode", "directional heat injection, heat storage and heat release mode" and "enhanced heat injection, heat storage and heat release mode".

[0011] Preferably, in the “intermittent heat injection, heat storage and heat release mode”, the controller sends a control signal to the heat activated building system to connect the first U-shaped tube, and the heat activated building system executes the intermittent heat injection, heat storage and heat release mode of the vertical drilling area. In this mode, the heat activated building system continuously injects heat into the central area of ​​the wall matrix through the first U-shaped tube, and continuously monitors the temperature change of the central area of ​​the wall matrix through the first temperature sensor. When the temperature difference between the real-time monitoring value of the first temperature sensor and the temperature of the heat exchange medium is less than the set value, the controller sends a control signal to the heat activated building system again to switch the heat exchange pipeline and connect the second U-shaped tube. At this time, the heat activated building system executes An intermittent heat injection, heat storage and heat release mode for the horizontal drilling area. In this mode, the heat activated building system continuously injects heat into the edge areas on both sides of the wall matrix through the second U-shaped heat exchange tube, and continuously monitors the temperature changes of the edge areas on both sides through the second temperature sensor. When the temperature difference between the real-time temperature monitoring value of the second temperature sensor and the temperature of the heat exchange medium is less than the set value, a control signal is sent to the heat activated building system through the controller to connect the first U-shaped tube again and execute the intermittent heat injection, heat storage and heat release mode for the vertical drilling area. In this way, the vertical drilling area and the horizontal drilling area alternately carry out the continuous heat injection, heat storage and heat release process until the controller finally sends a control instruction to stop the system.

[0012] Preferably, the "directional heat injection, heat storage and heat release mode": when the controller receives an instruction to give priority to indoor transient loads during the operation of the above-mentioned "intermittent heat injection, heat storage and heat release mode", the controller immediately sends an instruction to the heat-activated building system and executes the directional heat injection, heat storage and heat release mode of the horizontal drilling area. In this mode, the heat-activated building system continuously injects heat into the edge areas on both sides of the wall matrix through the second U-shaped tube to give priority to the transient loads from the room.

[0013] Preferably, the "enhanced heat injection, heat storage and heat release mode": when the controller receives a performance-priority operation instruction for the heat-activated building system, the controller immediately sends a rapid heat injection instruction to the heat-activated building system and executes the enhanced heat injection, heat storage and heat release mode of the vertical drilling area and the horizontal drilling area. In this mode, the heat-activated building system continuously injects heat into the entire area including the central area and the edge areas on both sides of the wall matrix through the first U-shaped tube and the second U-shaped tube to ensure high thermal performance of the envelope structure.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The heat-activated building envelope structure of the present invention can effectively solve the heat accumulation phenomenon widely existing inside the traditional heat-activated building envelope structure without intermittent control of the heat-activated building system, so it can achieve a higher natural energy utilization rate and effectively reduce the corresponding initial investment and operating costs of the source end and pumping system. 2. Through the alternating heat injection, heat storage and heat release in the central area of ​​the wall matrix and the edge areas on both sides, the heat-activated building envelope structure of the present invention can also overcome the influence of the heat accumulation phenomenon while ensuring that the heat injection capacity of the heat-activated building system will not be greatly attenuated, so the heat injection capacity and operating efficiency are significantly improved compared with the traditional heat-activated building system. 3. Through the alternating heat injection, heat storage and heat release in the central area of ​​the wall matrix and the edge areas on both sides, the problem of uneven heating of the heat-activated building envelope structure can also be effectively alleviated, the potential risk of cracks in the heat-activated building envelope structure is reduced, and the structural safety and user experience are also improved accordingly. 4. In the mode of implementing directional heat injection, heat storage and heat release in the edge areas on both sides of the wall matrix, the heat-activated building envelope structure of the present invention can also respond to the transient load of the building in a timely manner, and the response speed is faster than that of the traditional heat-activated building envelope structure, so it can effectively reduce the system installation capacity, initial investment and operating costs for handling the transient load of the building. 5. In the mode of implementing the full-area enhanced heat injection, heat storage and heat release in the central area of ​​the wall matrix and the edge areas on both sides, the heat-activated building envelope structure of the present invention can inject heat into the envelope structure with a higher heat injection capacity than the traditional heat-activated building system, so it has better performance in areas with more severe climates or in the same climate zone. 6. The heat-activated building envelope structure of the present invention realizes the modular design and construction of the heat-activated building system. After completion, it can complete the inspection and operation without large-scale damage to the wall load-bearing layer, and the inspection difficulty and operation workload can be greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shown is a schematic diagram of a double U-shaped heat-activated building envelope structure with cross-drilled holes according to the present invention;

[0016] Figure 2 Shown is a top view of a double U-shaped heat-activated building envelope structure with cross-drilled holes according to the present invention;

[0017] Figure 3 Shown Figure 2 AA section view;

[0018] Figure 4 Shown Figure 3 A partial enlarged view of

[0019] Figure 5 Shown Figure 2 BB section view

[0020] Figure 6 Shown Figure 5 A partial enlarged view of . DETAILED DESCRIPTION

[0021] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] The double U-shaped heat-activated building envelope structure with cross-drilled holes of the present invention is as follows Figure 1-Figure 5 As shown, it includes a wall matrix 11, a plurality of double U-shaped heat exchange pipelines, a temperature monitoring system, an outer insulation layer, and inner and outer plaster layers. A plurality of cross-shaped boreholes 12 are arranged inside the wall matrix 11, and an operation chamber cover 14 is arranged at one end close to the borehole outlet, and fluid pipeline inlets and outlets 25 are arranged at the upper and lower ends of the operation chamber cover 14, and the fluid pipeline inlets and outlets are connected to the double U-shaped heat exchange pipelines. The wall matrix 11 and the outer side of the operation chamber 14 are sequentially covered with an outer insulation layer 15 and an outer plaster layer 16, and the corresponding inner side is covered with an inner plaster layer 17. Each of the heat exchange pipelines is composed of a first U-shaped tube 21, a second U-shaped tube 22, and a heat exchange medium 27, wherein the first U-shaped tube 21 is placed in the vertical borehole of the cross-shaped borehole 12, and the second U-shaped tube 22 is placed in the horizontal borehole of the cross-shaped borehole 12. The first U-shaped tube 21 and the second U-shaped tube 22 are fixed at the four end positions of the cross-shaped drilling hole 12 through a special fixing piece 24 with a threaded mounting hole 241 and a vent hole 242 and a U-tube fixing rubber strip 23, and are in close contact with the wall base 11. When in use, first put in the U-tube fixing rubber strip, then use a long screw to screw into the threaded mounting hole to insert the special fixing piece into the cross-shaped drilling hole and press the U-tube fixing rubber strip, then screw out the long screw in the opposite direction, and four vent holes are set to facilitate the discharge of gas in the cross-shaped drilling hole when placing the special fixing piece. There are two purposes for setting several special fixing pieces at intervals instead of directly using one special fixing piece: one is for the purpose of material saving, because the U-tube fixing rubber strip has a certain interference fit with the rectangular drilling hole itself, and generally it will not deform or loosen after being squeezed in, of course, it will also be in extreme cases; the other purpose is that multiple fixing pieces are easier to install and disassemble than an integral fixing piece. The first U-shaped tube 21 and the second U-shaped tube 22 in the plurality of heat exchange pipelines are respectively connected in series or in parallel with each other in the operating chamber cover 14. The temperature monitoring system is composed of a first temperature sensor 4, a second temperature sensor 5 and an external controller 6 located inside the wall matrix 11. The first temperature sensor 4 is located on the horizontal bore extension line of the cross-shaped bore 12, and the distance between the first temperature sensor 4 and the end of the horizontal bore and the inner surface 3 of the wall matrix is ​​equal. The second temperature sensor 5 is located on the vertical bore extension line of the cross-shaped bore 12, and the distance between the second temperature sensor 5 and the end of the vertical bore is consistent with the distance between the first temperature sensor 4 and the end of the horizontal bore.

[0023] The operation control methods of the double U-shaped heat-activated building envelope structure with cross-drilled holes include three types: "intermittent heat injection, heat storage and heat release mode", "directional heat injection, heat storage and heat release mode" and "enhanced heat injection, heat storage and heat release mode".

[0024] Intermittent heat injection, heat storage and heat release mode: When the controller 6 receives the operation instruction of the heat activated building system to prioritize energy saving, the heat activated building envelope structure of the present invention continuously injects heat, stores heat and releases heat in an alternating mode of first the vertical drilling area and then the horizontal drilling area. First, the controller 6 sends a control signal to the heat activated building system to connect the first U-shaped tube 21, and the heat activated building system performs the intermittent heat injection, heat storage and heat release mode in the vertical drilling area. In this mode, the heat activated building system continuously injects heat into the central area of ​​the wall matrix 11 through the first U-shaped tube 21, and continuously monitors the temperature change in the central area of ​​the wall matrix 11 through the first temperature sensor 4. When the temperature difference between the real-time monitoring value of the first temperature sensor 4 and the temperature of the heat exchange medium is less than the set value, the controller 6 sends a control signal to the heat activated building system again to switch the heat exchange pipeline and connect the second U-shaped tube 22, and the heat activated building system performs the intermittent heat injection, heat storage and heat release mode in the horizontal drilling area. In this mode, the heat activated building system continuously injects heat into the edge areas on both sides of the wall matrix 11 through the second U-shaped heat exchange tube 22, and continuously monitors the temperature changes of the edge areas on both sides through the second temperature sensor 5. When the temperature difference between the real-time temperature monitoring value of the second temperature sensor 5 and the temperature of the heat exchange medium 27 is less than the set value, the controller sends a control signal to the heat activated building system to connect the first U-shaped tube 21 again, and execute the intermittent heat injection, heat storage and heat release mode of the vertical drilling area. In this way, the vertical drilling area and the horizontal drilling area alternately carry out the continuous heat injection, heat storage and heat release process until the controller 6 finally sends a control instruction for the system to stop running.

[0025] Directional heat injection, heat storage and heat release mode: When the controller 6 receives an instruction to prioritize indoor transient loads during the operation of the above-mentioned "intermittent heat injection, heat storage and heat release mode", the controller 6 immediately issues an instruction to the heat activated building system and executes the directed heat injection, heat storage and heat release mode of the horizontal drilling area. In this mode, the heat activated building system continuously injects heat into the edge areas on both sides of the wall matrix 11 through the second U-shaped tube 22 to prioritize the transient loads from the room.

[0026] Enhanced heat injection, heat storage and heat release mode: When the controller 6 receives the performance-prioritized operation instruction of the heat activated building system, the controller 6 immediately sends a quick heat injection instruction to the heat activated building system and executes the enhanced heat injection, heat storage and heat release mode of the vertical drilling area and the horizontal drilling area. In this mode, the heat activated building system continuously injects heat into the entire area including the central area and the edge areas on both sides of the wall matrix 11 through the first U-shaped tube 21 and the second U-shaped tube 22 to ensure high thermal performance of the enclosure structure.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A double U-shaped heat-activated building envelope with cross-drilled holes, characterized in that: It comprises a wall matrix, a plurality of double U-shaped heat exchange pipelines and a temperature monitoring system, wherein the wall matrix is ​​provided with a plurality of cross-shaped boreholes inside, each of the heat exchange pipelines is composed of a first U-shaped tube, a second U-shaped tube and a heat exchange medium, wherein the first U-shaped tube is placed in a vertical borehole of the cross-shaped borehole, and the second U-shaped tube is placed in a horizontal borehole of the cross-shaped borehole, and the first U-shaped tube and the second U-shaped tube are fixed at four end positions of the cross-shaped borehole by special fixings and U-tube fixing rubber strips, so that the first U-shaped tube and the second U-shaped tube are in close contact with the wall matrix; the temperature monitoring system is composed of a first temperature sensor, a second temperature sensor and an external controller located inside the wall matrix, wherein the first temperature sensor is located on an extension line of the horizontal borehole of the cross-shaped borehole, and the first temperature sensor is at an equal distance from the end of the horizontal borehole and the inner surface of the wall matrix, and the second temperature sensor is located on an extension line of the vertical borehole of the cross-shaped borehole, and the distance between the second temperature sensor and the end of the vertical borehole is consistent with the distance between the first temperature sensor and the end of the horizontal borehole; The cross section of the special fixing piece is cross-shaped, a threaded mounting hole is provided through the center of the cross section, and air release holes are provided through the four sides of the cross section. The four sides of the special fixing piece tightly press the U-tube fixing rubber strip, so that the U-tube fixing rubber strip presses the first U-shaped tube and the second U-shaped tube; An operation chamber cover is provided at one end close to the borehole outlet, and fluid pipeline inlets and outlets are provided at the upper and lower ends of the operation chamber cover; The outer sides of the wall matrix and the operation chamber are sequentially covered with an outer insulation layer and an outer plaster layer, and the corresponding inner sides are covered with an inner plaster layer.

2. The double U-shaped heat-activated building envelope with cross-drilled holes according to claim 1, characterized in that: The first U-shaped tubes and the second U-shaped tubes in the plurality of heat exchange pipelines are respectively connected in series or in parallel with each other in the operation chamber cover.

3. An operation control method for a building envelope structure according to any one of claims 1 to 2, characterized in that: It includes three modes: "intermittent heat injection, heat storage and heat release mode", "directional heat injection, heat storage and heat release mode" and "enhanced heat injection, heat storage and heat release mode".

4. The method according to claim 3, characterized in that: The "intermittent heat injection, heat storage and heat release mode": the controller sends a control signal to the heat activated building system to connect the first U-shaped tube. At this time, the heat activated building system executes the intermittent heat injection, heat storage and heat release mode of the vertical drilling area. In this mode, the heat activated building system continuously injects heat into the central area of ​​the wall matrix through the first U-shaped tube, and continuously monitors the temperature change of the central area of ​​the wall matrix through the first temperature sensor. When the temperature difference between the real-time monitoring value of the first temperature sensor and the temperature of the heat exchange medium is less than the set value, the controller sends a control signal to the heat activated building system again to switch the heat exchange pipeline and connect the second U-shaped tube. At this time, the heat activated building system executes the horizontal An intermittent heat injection, heat storage and heat release mode in the drilling area. In this mode, the heat activated building system continuously injects heat into the edge areas on both sides of the wall matrix through the second U-shaped heat exchange tube, and continuously monitors the temperature changes of the edge areas on both sides through the second temperature sensor. When the temperature difference between the real-time temperature monitoring value of the second temperature sensor and the temperature of the heat exchange medium is less than the set value, the controller sends a control signal to the heat activated building system to connect the first U-shaped tube again and execute the intermittent heat injection, heat storage and heat release mode of the vertical drilling area. In this way, the vertical drilling area and the horizontal drilling area alternately carry out the continuous heat injection, heat storage and heat release process until the controller finally sends a control instruction to stop the system.

5. The method according to claim 4, characterized in that: The "directional heat injection, heat storage and heat release mode": when the controller receives an instruction to give priority to processing indoor transient loads during the operation of the above-mentioned "intermittent heat injection, heat storage and heat release mode", the controller immediately sends an instruction to the heat-activated building system and executes the directional heat injection, heat storage and heat release mode of the horizontal drilling area. In this mode, the heat-activated building system continuously injects heat into the edge areas on both sides of the wall matrix through the second U-shaped tube to give priority to processing the transient loads from the room.

6. The method according to claim 4, characterized in that: The "enhanced heat injection, heat storage and heat release mode": when the controller receives a performance-priority operation instruction for the heat-activated building system, the controller immediately sends a rapid heat injection instruction to the heat-activated building system and executes the enhanced heat injection, heat storage and heat release mode for the vertical drilling area and the horizontal drilling area. In this mode, the heat-activated building system continuously injects heat into the entire area including the central area and the edge areas on both sides of the wall matrix through the first U-shaped tube and the second U-shaped tube to ensure high thermal performance of the envelope structure.

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