CN112414194B - Equipment module, system and method for treating underground space thermal pollution - Google Patents
Equipment module, system and method for treating underground space thermal pollution Download PDFInfo
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- CN112414194B CN112414194B CN202011321853.7A CN202011321853A CN112414194B CN 112414194 B CN112414194 B CN 112414194B CN 202011321853 A CN202011321853 A CN 202011321853A CN 112414194 B CN112414194 B CN 112414194B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
- F28D20/021—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material and the heat-exchanging means being enclosed in one container
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
The invention discloses an equipment module, a system and a method for treating underground space thermal pollution, wherein the equipment module consists of a viscous heat-insulating layer and a heat storage structure layer, the viscous heat-insulating layer is positioned on one surface of the heat storage structure layer, and the viscous heat-insulating layer is used for bonding walls of the underground space; the heat storage structure layer is filled with a phase change heat storage material, a heat exchange tube is embedded in the heat storage material and comprises two heat exchange main pipes and a plurality of heat exchange branch pipes, the two heat exchange main pipes are respectively positioned at two sides in the heat storage structure layer, the plurality of heat exchange branch pipes are arranged in parallel, openings at two ends of each heat exchange branch pipe are respectively communicated with the two heat exchange main pipes, one heat exchange main pipe is used as a heat exchange inlet pipe, and the other heat exchange main pipe is used as a heat exchange outlet pipe; the edge of the equipment module is provided with a plurality of chamfers, and the chamfers are provided with bolt preformed holes. The invention can effectively improve the thermal environment of the underground space and store the heat energy of the underground space.
Description
Technical Field
The invention relates to the field of building, energy conservation and environmental protection, in particular to an equipment module, a system and a method for treating underground space thermal pollution.
Background
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
A large amount of low-grade heat energy can be generated in the urban underground space in the using process, but if the heat energy is not processed, the heat energy can be absorbed by surrounding walls, soil rocks outside the walls and the like, heat accumulation is caused, and heat pollution is caused to surrounding rock and soil. The inventors have found that ventilating the underground space can discharge heat energy to the outside, causing unnecessary waste; although the underground space is cooled, the heat energy cannot be discharged to the outside, the heat energy can be offset, and the energy waste is also caused. In recent years, in some projects, heat exchange tubes are laid in a continuous wall of an underground space to serve as a front-end heat exchanger of a ground source heat pump, so that low-grade heat energy of the underground space can be converted into high-grade heat energy to be utilized, and a certain positive effect is achieved on soil thermal pollution treatment.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide an equipment module, a system and a method for treating underground space thermal pollution.
In order to achieve the purpose, the technical scheme of the invention is as follows:
on one hand, the equipment module for treating the thermal pollution of the underground space consists of a viscous heat-insulating layer and a heat storage structure layer, wherein the viscous heat-insulating layer is positioned on one surface of the heat storage structure layer and is used for bonding the wall of the underground space;
the heat storage structure layer is filled with a phase change heat storage material, a heat exchange tube is embedded in the heat storage material and comprises two heat exchange main pipes and a plurality of heat exchange branch pipes, the two heat exchange main pipes are respectively positioned at two sides in the heat storage structure layer, the plurality of heat exchange branch pipes are arranged in parallel, openings at two ends of each heat exchange branch pipe are respectively communicated with the two heat exchange main pipes, one heat exchange main pipe is used as a heat exchange inlet pipe, and the other heat exchange main pipe is used as a heat exchange outlet pipe;
the edge of the equipment module is provided with a plurality of chamfers, and the chamfers are provided with bolt preformed holes.
The equipment modules arranged in the invention can be matched with each other to wrap the wall of the underground space, the heat storage structure layer can absorb and store the pollution heat of the underground space, and the viscous heat insulation layer is arranged to avoid the heat stored in the heat storage structure layer from exchanging heat with the rock soil around the underground space building, thereby preventing the pollution heat of the underground space from influencing the rock soil around the underground space building.
On the other hand, the system for treating the thermal pollution of the underground space comprises a plurality of equipment modules, a water separator, a water collector, a water pump and a water tank, wherein the equipment modules are assembled and matched and are adhered to the wall of the underground space through a viscous heat-insulating layer; the outlet of the water tank is provided with a water flow direction which is sequentially connected with a water pump and a water separator, the outlet of the water separator is connected with one end opening of a heat exchange inlet pipe of the equipment module, the inlet of the water collector is connected with one end opening of a heat exchange outlet pipe of the equipment module, and the outlet of the water collector is connected with the water tank;
the other end opening of the heat exchange inlet pipe of one equipment module is closed, or the other end opening of the heat exchange inlet pipe of one equipment module is connected with one end opening of the heat exchange inlet pipe of the other equipment module;
the other end opening of the heat exchange outlet pipe of one equipment module is closed, or the other end opening of the heat exchange outlet pipe of one equipment module is connected with one end opening of the heat exchange outlet pipe of the other equipment module.
And in a third aspect, the method for treating the thermal pollution of the underground space is characterized in that the system is provided, the water pump is started, the temperature of the inlet or the outlet of the water collector is detected, and when the detected temperature is lower than the phase change temperature of the phase change heat storage material, the operation of the water pump is stopped.
In a fourth aspect, a construction method of the system for treating underground space thermal pollution is characterized in that the other side of a box-shaped structure with one open side is installed on one side of a thermal storage structure layer, the open side of the box-shaped structure is opposite to a wall, a liquid thermal insulation viscous material is poured into the box-shaped structure, the liquid thermal insulation viscous material is solidified to form a viscous thermal insulation layer, an equipment module is fixed on the wall through bolts, then other equipment modules are sequentially installed, the equipment module is connected with a water separator and a water collector, an inlet of the water separator is connected with a supply pipe, an outlet of the water collector is connected with a return pipe, the supply pipe is sequentially connected with a water pump and a water tank outlet, and the return pipe is connected with a water tank inlet.
The invention has the beneficial effects that:
the invention utilizes the characteristics of large heat storage capacity and constant temperature during phase change of the phase change heat storage material, can absorb a large amount of waste heat of the underground space, simultaneously keeps the indoor air temperature of the underground space basically constant, and simultaneously adopts a circulating system to carry out secondary utilization on the waste heat. On one hand, waste heat in the underground space can be prevented from being stored in surrounding rock soil, and the occurrence of thermal pollution in the underground space is prevented; on the other hand, the heat absorbed by the phase-change material is utilized secondarily, so that the comprehensive utilization rate of energy is improved. Has remarkable energy-saving and environment-friendly benefits.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic structural view of a thermal storage structure layer in example 1 of the present invention;
fig. 2 is a schematic view of a bolt hole of embodiment 1 of the invention;
FIG. 3 is a schematic diagram of an apparatus module according to embodiment 1 of the present invention;
FIG. 4 is a schematic view of a mechanical joint according to embodiment 1 of the present invention;
FIG. 5 is a schematic view of a box-shaped viscous insulating layer according to embodiment 1 of the present invention;
fig. 6 is a schematic installation diagram of an equipment module according to embodiment 1 of the present invention, wherein a is a front view and B is a side view;
fig. 7 is a schematic structural diagram of a corner device module according to embodiment 1 of the present invention;
FIG. 8 is a schematic structural diagram of a system according to embodiment 1 of the present invention;
FIG. 9 is a schematic diagram of a system control strategy according to embodiment 1 of the present invention;
the heat exchange pipe comprises a heat exchange pipe main pipe 1, a heat exchange pipe branch pipe 2, a heat exchange pipe branch pipe 3, a reserved hole 4, a fin 5, a phase change heat storage material 6, a bolt hole 7, a chamfer 8, a viscous heat insulation layer 9, a heat storage structure layer 10, a decoration layer 11, a sleeve pipe 12, a water stop adhesive tape or rubber ring 13, a viscous heat insulation layer reserved hole 14, a wall body 15, a flow sensor 16, a temperature sensor 17, a ball valve 18, an exhaust valve 19, a pump 20, a water collector 21, a water distributor 22, a closed water tank 23, a heat level lifting device 24, an electric heater 25 and a purification device.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
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 exemplary embodiments according to 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.
For convenience of description, the words "up", "down", "left" and "right" in this application, if any, merely indicate correspondence with the directions of up, down, left and right of the drawings themselves, and do not define the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting of the application.
The terms "mounted", "connected", "fixed", and the like in the present application should be understood broadly, and for example, the terms "mounted", "connected", and "fixed" may be fixedly connected, detachably connected, or integrated; the two components can be connected directly or indirectly through an intermediate medium, or the two components can be connected internally or in an interaction relationship, and it is understood that the terms used in the present invention have the specific meanings given to the specific situations.
As described in the background art, the prior art has the problems of high energy consumption and difficulty in preventing the occurrence of thermal pollution of the underground space, and the invention provides an equipment module, a system and a method for treating the thermal pollution of the underground space in order to solve the technical problems.
The invention provides an equipment module for treating underground space thermal pollution, which consists of a viscous heat-insulating layer and a heat storage structure layer, wherein the viscous heat-insulating layer is positioned on one surface of the heat storage structure layer and is used for bonding walls of the underground space;
the heat storage structure layer is filled with a phase change heat storage material, a heat exchange tube is embedded in the heat storage material and comprises two heat exchange main pipes and a plurality of heat exchange branch pipes, the two heat exchange main pipes are respectively positioned at two sides in the heat storage structure layer, the plurality of heat exchange branch pipes are arranged in parallel, openings at two ends of each heat exchange branch pipe are respectively communicated with the two heat exchange main pipes, one heat exchange main pipe is used as a heat exchange inlet pipe, and the other heat exchange main pipe is used as a heat exchange outlet pipe;
the edge of the equipment module is provided with a plurality of chamfers, and the chamfers are provided with bolt preformed holes.
The equipment modules arranged in the invention can be matched with each other to wrap the wall of the underground space, the heat storage structure layer can absorb and store the pollution heat of the underground space, and the viscous heat insulation layer is arranged to avoid the heat stored in the heat storage structure layer from exchanging heat with the rock soil around the underground space building, thereby preventing the pollution heat of the underground space from influencing the rock soil around the underground space building.
The phase change heat storage material should consider the suitable operating temperature of human body and other equipment, and other media are added into the phase change heat storage material to change the melting point of the phase change heat storage material when necessary.
In some examples of this embodiment, the decorative layer is mounted on the other side of the heat storage structure layer.
In one or more embodiments, the thermal storage structure layer and the decorative layer are adhesively connected by an adhesive.
In some embodiments of this embodiment, the adhesive insulating layer is adhesively attached by the thermal storage structure layer adhesive.
The height and the length of the heat storage structure layer can be determined according to the height of a specific construction wall body, the heat storage structure layer is distributed on the surface of the whole wall body as much as possible, and enough operation space is reserved during upper-layer equipment construction.
In some embodiments of the embodiment, one end of each of the two heat exchange header pipes is provided with a sleeve, the inner diameter of each sleeve is equal to or slightly larger than the outer diameter of each heat exchange header pipe, each sleeve is flush with the side surface of the heat storage structure layer, and the other end of each heat exchange header pipe exceeds the side surface of the heat storage structure layer. The end of each loop supply and return pipe is free of a sleeve and sealed tightly.
In one or more embodiments, the length of the overhang is equal to the length of the sleeve.
In one or more embodiments, a rubber ring or a water-stop adhesive tape is arranged in the sleeve. Preventing leakage of the medium.
In some embodiments of the embodiment, the equipment module is in a horn shape, and the heat exchange inlet pipe and the heat exchange outlet pipe in the horn-shaped equipment module are connected by adopting elbows. The opening size of the angle-shaped equipment module can be 60 degrees, 90 degrees, 120 degrees and the like.
In some embodiments of this embodiment, the heat exchange tube legs are ribbed. The distance between the branch pipes of the heat exchange pipe is determined according to the principle that the heat exchange efficiency is maximum.
In some examples of this embodiment, the space filled with the phase-change thermal storage material in the thermal storage structure layer is sealed. And after the assembly is finished, the tightness is checked.
The coating material of the heat storage structure layer is a material with high heat conductivity coefficient and strength capable of meeting the sealing requirement. Such as: a galvanized steel sheet.
In some embodiments of this embodiment, the space in the thermal storage structure layer filled with the phase change thermal storage material is filled with a margin. The change of volume caused by phase change is prevented from influencing the structure of the heat storage structure layer.
The invention provides a system for treating heat pollution of an underground space, which comprises a plurality of equipment modules, a water separator, a water collector, a water pump and a water tank, wherein the equipment modules are assembled and matched and are adhered to the wall of the underground space through a viscous heat-insulating layer; the outlet of the water tank is sequentially connected with the water pump and the water distributor according to the water flow direction, the outlet of the water distributor is connected with one end opening of the heat exchange inlet pipe of the equipment module, the inlet of the water collector is connected with one end opening of the heat exchange outlet pipe of the equipment module, and the outlet of the water collector is connected with the water tank;
the other end opening of the heat exchange inlet pipe of one equipment module is closed, or the other end opening of the heat exchange inlet pipe of one equipment module is connected with one end opening of the heat exchange inlet pipe of the other equipment module;
the other end opening of the heat exchange outlet pipe of one equipment module is closed, or the other end opening of the heat exchange outlet pipe of one equipment module is connected with one end opening of the heat exchange outlet pipe of another equipment module.
Some embodiments of this embodiment include one or more of a heat storage tank, an electric heater, and a hot-product-level-lifting device, the heat storage tank, the electric heater, and the hot-product-level-lifting device being connected to the outlet of the water collector.
In one or more embodiments, the thermal storage tank, the electric heater, and the thermal grade raising device are connected in parallel or in series.
Some embodiments of this embodiment include a purification device, which is mounted at the outlet of the sump.
In some embodiments of the embodiment, the connecting pipeline, the water separator and the water collector are provided with an insulating layer.
In some embodiments of the embodiment, the water separator and the water collector are provided with temperature sensors, the temperature sensors transmit temperature signals to the controller, and the controller controls the operation of the water pump according to the temperature signals.
In some embodiments of this embodiment, both the water separator and the water collector are provided with flow monitoring devices. When the flow of the inlet and the outlet on a branch pipe of the water segregator and the water collector has obvious deviation, the branch pipe is indicated to have leakage or blockage, and the branch pipe is required to be maintained in time.
In a third embodiment of the present invention, a method for treating thermal pollution in an underground space is provided, wherein the system is provided, a water pump is started, the temperature of the inlet or the outlet of the water collector is detected, and when the detected temperature is lower than the phase change temperature of the phase change heat storage material, the operation of the water pump is stopped.
In some embodiments of this embodiment, the steps are: starting a water pump at intervals, wherein a medium needs to circulate in a loop of the system once in the starting time, and monitoring the outlet temperature during the starting period; when the outlet temperature is higher than the phase-change temperature of the phase-change heat storage material, the water pump continuously operates until the outlet temperature is lower than the phase-change temperature of the phase-change heat storage material, and the water pump stops operating; and when the outlet temperature is lower than the phase change temperature of the phase change heat storage material, stopping the water pump, and waiting for the next period to start the water pump again.
The phase change temperature depends on the physical properties of the solid-liquid phase change heat storage material, the allowable fluctuation range of the air temperature of the underground space and the accuracy of the sensor.
The invention also provides a construction method of the system for treating underground space thermal pollution, which comprises the steps of installing the other side of a box-shaped structure with an opening on one side of a heat storage structure layer, facing the opening side of the box-shaped structure to a wall, pouring a liquid heat-insulating viscous material into the box-shaped structure, solidifying the liquid heat-insulating viscous material to form a viscous heat-insulating layer, fixing equipment modules on the wall through bolts, then sequentially installing other equipment modules, connecting the equipment modules with a water separator and a water collector, connecting an inlet of the water separator with a supply pipe, connecting an outlet of the water collector with a return pipe, and sequentially connecting the supply pipe with a water pump and an outlet of a water tank, wherein the return pipe is connected with an inlet of the water tank.
In order to make the technical solution of the present invention more clearly understood by those skilled in the art, the technical solution of the present invention will be described in detail below with reference to fig. 1 to 9 and specific embodiments.
Example 1
As shown in fig. 1-9.
The utility model provides a handle underground space thermal pollution's equipment module, includes viscidity heat preservation 8, heat storage structure layer 9, decorative layer 10, includes heat exchange tube house steward 1, heat exchange tube branch pipe 2, preformed hole 3, fin 4, phase change heat storage material 5, bolt hole 6, chamfer 7 in the heat storage structure layer 9.
A system for treating underground space thermal pollution comprises an equipment module, a flow sensor 15, a temperature sensor 16, a ball valve 17, an exhaust valve 18, a pump 19, a water collector 20, a water separator 21, a closed water tank 22, a thermal level lifting device 23, an electric heater 24 and a purifying device 25.
A construction method of a system for treating underground space heat pollution comprises the steps of installing a first equipment module, installing and connecting an nth equipment module and connecting the system.
1. Equipment module for treating underground space thermal pollution
1.1 Heat storage Structure layer
As shown in fig. 1, the front surface of the thermal storage structure layer is replaced with a transparent surface in order to see the internal structure of the thermal storage structure layer.
The maximum surface of the module is square, and the thickness of the heat storage structure layer 9 is larger than the pipe diameter of the heat exchange pipe header pipe 1.
The center of the upper side surface of the heat storage structure layer 9 is provided with a preformed hole 3 for the phase change heat storage material 5 to flow in, the phase change heat storage material 5 is distributed in the inner space of the whole heat storage structure layer 9, and the preformed hole 3 is sealed after the phase change heat storage material 5 enters.
The two heat exchange tube header pipes 1 are respectively close to the upper side surface and the lower side surface, the distance between the two heat exchange tube header pipes 1 and the upper side surface and the distance between the two heat exchange tube header pipes 1 and the lower side surface are larger than the height of the chamfer 6, and the two heat exchange tube header pipes 1 extend out of the same end of the heat storage structure layer 9. All the equipment heat exchange tube main pipes 1 extend out from one end, the other end is provided with a sleeve 11 with a slightly larger tube diameter, and the lengths of the sleeve 11 and the extending end of the heat exchange tube are equal. The tail end of the heat exchange tube main pipe 1 of the last device is sealed completely without a sleeve.
Two heat exchange tube main pipes 1 in the heat storage structure layer 9 are connected through heat exchange tube branch pipes 2, each heat exchange tube branch pipe 2 is provided with a fin 4, and the maximum principle of the heat exchange efficiency of the heat exchange tube is required for determining the distance between the heat exchange tube branch pipes 2 and the geometric parameters of the fins.
As shown in fig. 2, four shortest sides of the thermal storage structure layer 9 are provided with chamfers 7, and the chamfers 7 are enough to be driven into the bolt holes 6 and maintain the strength of the bolts to ensure the stability of the equipment.
Considering the corner turning part, the 90-degree corner module structure is shown in fig. 7, and the heat exchange tube main pipes 1 are connected by 90-degree elbows.
1.2 Overall Structure of Equipment Module
As shown in fig. 3, an open box-shaped adhesive thermal insulation layer 8 is attached to the back of the thermal storage structure layer 9 with an adhesive, and the opening faces the wall. In order to pour the liquid viscous heat-insulating material into the box body to enable the liquid viscous heat-insulating material to expand uniformly, a plurality of viscous heat-insulating layer preformed holes 13 are formed in the upper surface of the box-shaped viscous heat-insulating layer 8 at equal intervals, and the box body can be uniformly filled with the liquid viscous heat-insulating material.
The forming structure of the underground space thermal pollution treatment equipment is shown in fig. 5, wherein the rear surface of a heat storage structure layer 9 is connected with a box-shaped viscous heat insulation layer 8, and the front surface is connected with a decoration layer 10 which are all connected by using an adhesive.
2. System for treating underground space thermal pollution
2.1 composition of the System
As shown in fig. 8, the thermal pollution treatment system for the underground space comprises thermal pollution treatment equipment for the underground space, a flow sensor 15, a temperature sensor 16, a ball valve 17, an exhaust valve 18, a pump 19, a water collector 20, a water separator 21, a closed water tank 22, a thermal level lifting device 23, an electric heater 24 and a purification device 25. All the equipment of the system are connected by pipelines with heat-insulating layers. The closed water tank 22 is provided with a device for automatically replenishing the heat exchange medium. The heat grade raising device 23 is a heat pump.
The temperature 16 and flow 15 monitoring devices are respectively arranged on the branch pipes of the water separator 21 and the water collector 20, the devices send signals to the control center, and the control center controls the start and stop of the pump 19 and other devices. Wherein one or more of the closed water tank 22, the electric heater 24 and the hot level elevating device 23 can be selected according to the requirement. The exhaust valve 18 should be an automatic exhaust valve and one for each peak.
2.2 operation of the System
After the solid-liquid phase change heat storage material is completely changed in phase, the heat storage capacity is very small, and the air temperature of an underground space fluctuates, so that a control operation strategy of a system is needed.
The pump was started every 24h for 5min and the outlet temperature was monitored continuously during the start-up time. When the outlet temperature is 1 ℃ or more than 1 ℃ higher than the melting point temperature of the solid-liquid phase change heat storage material, the pump continuously operates until the outlet temperature is 1 ℃ lower than the melting point temperature of the solid-liquid phase change heat storage material, and the pump stops operating. When the outlet temperature is 1 ℃ or more than 1 ℃ lower than the melting point temperature of the solid-liquid phase change heat storage material, the pump stops running and starts again in the next period. This action is accomplished by the temperature monitoring device transmitting a signal to the control center.
The flow monitoring device 15 on the water separator 21 and the water collector 20 monitors the flow of the medium entering and exiting the underground space thermal pollution device, when the flow of the inlet and the outlet on a branch pipe of the water separator 21 and the water collector 20 has obvious deviation, the branch pipe is indicated to have leakage or blockage, and the valve 17 of the branch pipe is required to be closed and maintained in time.
3. Construction method of system for treating underground space thermal pollution
3.1 first Equipment Module installation
As shown in fig. 3, the adhesive insulation 8 at the rear of the equipment module should initially be in the form of a box with an open rear facing wall 14. A plurality of preformed holes 13 which are enough to pour liquid viscous heat-insulating materials (such as ingredients before polyurethane foaming) are reserved above the box-shaped heat-insulating layer 8, and the front part of the box-shaped viscous heat-insulating layer 8 is adhered to the surface of the module 9 in advance.
The pressure test of the heat exchange tube should be carried out before the installation of the equipment module. And (3) pumping gas with certain pressure into the heat exchange tubes, sealing the two heat exchange tube main pipes 1, wherein the pressure is equal to 1.5 times of the rated pressure which can be borne by the heat exchange tube main pipes 1 and the branch pipes 2, reducing the pressure in the tubes within 10min to be less than 0.05MPa, and inspecting after the pressure is reduced to the rated pressure, wherein no leakage exists, and the product is qualified.
The equipment module is connected with the viscous heat-insulating layer 8 after being qualified. The box-shaped adhesive insulating layer 8 is tightly attached to the wall 14, and enough pressure is needed when the box-shaped adhesive insulating layer is tightly attached to the wall 14, so that the adhesive insulating material is not enough to push the equipment away from the wall 14 when expanding. The lower surface of the equipment is tightly attached to the ground, and the ground is not covered with sundries and is cleaned in advance. The ambient temperature around the apparatus should be adjusted to the optimum expansion temperature of the viscous insulating material in order to obtain the best quality of the viscous insulating layer 8, and an air heater or a cooling apparatus may be used. Then, enough liquid viscous heat-insulating material with the well-adjusted proportion is poured into the carton-shaped heat-insulating layer 8 quickly, and the box body is sealed, but an air outlet is reserved but the viscous heat-insulating material is not overflowed enough. The adhesive insulating layer 8 is connected.
The bolts are driven into the wall sequentially through the bolt holes 6 in the order of one diagonal line to the other, and the upper and lower bolt holes 6 are preferably driven simultaneously for the purpose of stabilizing the equipment. Expansion bolts are used when the wall 14 is sufficiently strong and perforated bolts are used when the wall 14 is insufficiently strong.
3.2 nth Equipment Module installation
When the second equipment module is tightly attached to the wall 14, the mechanical connection of the heat exchange pipe header 1 is firstly carried out. As shown in fig. 4, one end of the two heat exchange tube header pipes 1, which extends out of the thermal storage structure layer 9, extends into the sleeve 11 and is fixed by a water stop adhesive tape or rubber ring 12 on the inner side of the sleeve 11. The water stop tape or rubber ring 12 should be able to withstand pressure testing after the pipe connection.
And after the mechanical connection is finished, carrying out pressure test on the heat exchange tube, wherein the pressure test standard is 3.1.
And 3.1, after the pressure test of the heat exchange tube is qualified, connecting the viscous heat-insulating layer 8 of the equipment module with a bolt, and connecting the equipment module with the bolt.
The lower-layer equipment module is tightly attached to the ground and connected for a circle, avoids fire fighting, bare leakage circuits, water pipes and other facilities, and is only connected with a bare leakage wall body.
When the underground space is large enough, a plurality of loops need to be separated from the water collecting and distributing device, and the number of the loops and the length of the loops are determined according to hydraulic calculation. The pipeline of each loop from the water collecting and distributing device to the underground space thermal pollution treatment equipment is subjected to heat preservation measures, and the pipeline is laid at a corner, the upper part of the equipment or the upper part of the underground space with surplus space.
As shown in FIG. 6, after the lower layer of equipment is connected in a circle, a layer of adhesive is coated on the upper surface of the equipment, and the contact surface between the upper layer and the lower layer is tightly adhered by the adhesive to prevent slippage. The mechanical connection of the subsequent heat exchange tube main pipe 1 and the connection operation of the viscous heat-insulating layer 8 are the same as the above.
After the surface arrangement of the whole wall body 14 is completed, a decorative layer 10 is arranged on the outer side of the device.
3.3 connection of systems
After the connection is completed, as shown in fig. 9, the extended end of the heat exchange tube header 1 at the starting end of each loop of the equipment is connected with a pipeline, a supply tube is connected with a water separator through the pipeline, and a return tube is connected with a water collector through the pipeline. Temperature and flow monitoring equipment is arranged on the water separator, the water collector main pipe and each branch pipe. The water collector is connected with the purifying device through a pipeline, the purifying device is connected with the heat grade lifting device, the heat storage tank and the electric heater through pipelines, and then is connected with the pump through a pipeline, and the pump is connected with the water separator.
The embodiment can fully utilize the residual heat energy of the underground space, and maintain the indoor air temperature of the underground space at a constant value basically, thereby reducing the heat pollution to the underground rock soil to a great extent, and the stored heat energy can be applied in various ways.
The system can store heat in the heat storage water tank in summer and transitional seasons, and can replace or supplement heat generation devices such as a boiler and the like in winter and supply heat to the overground building by using the heat energy in the heat storage water tank. The electric heater can be used all the season, and can supply domestic hot water for hospitals or hotels.
During the system is started, the temperature of the air in the underground space room can be basically maintained at a constant value, and the constant value is the melting point of the phase-change heat storage material.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (17)
1. A system for treating underground space thermal pollution is characterized by comprising a plurality of equipment modules, a water separator, a water collector, a water pump and a water tank, wherein the equipment modules are assembled and matched;
the equipment module consists of a viscous heat-insulating layer and a heat storage structure layer, wherein the viscous heat-insulating layer is positioned on one surface of the heat storage structure layer and is used for bonding walls of an underground space;
the heat storage structure layer is filled with phase change heat storage materials, heat exchange tubes are embedded in the heat storage materials, each heat exchange tube comprises two heat exchange main pipes and a plurality of heat exchange branch pipes, the two heat exchange main pipes are respectively positioned on two sides in the heat storage structure layer, the plurality of heat exchange branch pipes are arranged in parallel, openings at two ends of each heat exchange branch pipe are respectively communicated with the two heat exchange main pipes, one heat exchange main pipe serves as a heat exchange inlet pipe, and the other heat exchange main pipe serves as a heat exchange outlet pipe;
the edge of the equipment module is provided with a plurality of chamfers, and the chamfers are provided with bolt preformed holes;
the outlet of the water tank is sequentially connected with a water pump and a water distributor in the water flow direction, the outlet of the water distributor is connected with one end of a heat exchange inlet pipe of the equipment module and is provided with an opening, the inlet of the water collector is connected with one end of a heat exchange outlet pipe of the equipment module and is provided with an opening, and the outlet of the water collector is connected with the water tank;
the other end opening of the heat exchange inlet pipe of one equipment module is closed, or the other end opening of the heat exchange inlet pipe of one equipment module is connected with one end opening of the heat exchange inlet pipe of the other equipment module;
the other end opening of the heat exchange outlet pipe of one equipment module is closed, or the other end opening of the heat exchange outlet pipe of one equipment module is connected with one end opening of the heat exchange outlet pipe of the other equipment module;
the system is adopted to carry out secondary utilization on waste heat, a water pump is started at intervals, a medium needs to circulate in a loop of the system once within the starting time, and the outlet temperature is monitored during the starting period; when the outlet temperature is higher than the phase-change temperature of the phase-change heat storage material, the water pump continuously operates until the outlet temperature is lower than the phase-change temperature of the phase-change heat storage material, and the water pump stops operating; when the outlet temperature is lower than the phase change temperature of the phase change heat storage material, the water pump stops running and is started again in the next period.
2. The system for treating thermal pollution of an underground space as claimed in claim 1, wherein the heat storage structure layer is provided with a decorative layer on the other side.
3. The system for treating thermal pollution of an underground space as claimed in claim 1, wherein the equipment modules are in the shape of a horn, and the heat exchange inlet pipe and the heat exchange outlet pipe in the horn-shaped equipment modules are connected by an elbow.
4. The system for treating thermal pollution of an underground space according to claim 1, wherein the heat exchange pipe branch pipes are ribbed.
5. The system for treating the thermal pollution of the underground space as claimed in claim 1, wherein one end of each of the two heat exchange header pipes is provided with a sleeve pipe, the inner diameter of the sleeve pipe is equal to or slightly larger than the outer diameter of the heat exchange header pipe, the sleeve pipe is flush with the side surface of the heat storage structure layer, and the other end of each of the two heat exchange header pipes exceeds the side surface of the heat storage structure layer.
6. The system for treating thermal contamination of a subterranean space of claim 5, wherein the length of the excess side is equal to the length of the casing.
7. The system for treating thermal pollution of a subterranean space according to claim 5, wherein a rubber ring or a waterproof tape is provided in the sleeve.
8. The system for treating thermal pollution of a subterranean space according to claim 1, wherein the space filled with the phase change heat storage material in the heat storage structure layer is sealed.
9. A system for treating thermal pollution of a subterranean space according to claim 1, wherein the space in the thermal storage structure filled with the phase change thermal storage material is filled with a margin.
10. The system of claim 1, further comprising one or more of a heat storage tank, an electric heater, and a thermal level riser, wherein the heat storage tank, the electric heater, and the thermal level riser are connected to the outlet of the water collector.
11. The system for treating thermal pollution of a subsurface space as claimed in claim 10, wherein said heat storage tank, said electric heater, and said thermal level raising means are connected in parallel or in series.
12. The system for treating thermal pollution of a subterranean space of claim 1, further comprising a purification unit installed at the outlet of the sump.
13. The system for treating thermal pollution of an underground space according to claim 1, wherein the connecting pipe, the water separator and the water collector are provided with an insulating layer.
14. The system for treating thermal pollution of an underground space of claim 1, wherein the water separator and the water collector are provided with temperature sensors, and the temperature sensors transmit temperature signals to the controller to control the operation of the water pump according to the temperature signals.
15. The system for treating thermal pollution of a subterranean space of claim 1 wherein the water separator and the water collector are provided with flow monitoring devices.
16. A method for treating heat pollution of an underground space, which is characterized by providing the system as claimed in any one of claims 1 to 15, starting a water pump, detecting the temperature of an outlet of a water collector, and stopping the water pump when the detected temperature is lower than the phase change temperature of a phase change heat storage material.
17. A construction method of a system for treating thermal pollution in an underground space as claimed in claim 1, wherein the other side of the box-like structure with one open side is installed on one side of the heat storage structure layer, the open side of the box-like structure is opposite to the wall, a liquid heat-insulating viscous material is poured into the box-like structure, the liquid heat-insulating viscous material is solidified to form a viscous heat-insulating layer, the equipment module is fixed on the wall through bolts, then other equipment modules are sequentially installed, the equipment module is connected with the water separator and the water collector, the inlet of the water separator is connected with the supply pipe, the outlet of the water collector is connected with the return pipe, the supply pipe is sequentially connected with the water pump and the outlet of the water tank, and the return pipe is connected with the inlet of the water tank.
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| CN203518745U (en) * | 2013-09-03 | 2014-04-02 | 河北科技大学 | Novel phase change heat accumulator |
| CN103615754B (en) * | 2013-11-19 | 2017-01-18 | 杭州华电能源工程有限公司 | Intelligent movable heat storage and supply device with steam heating function |
| CN204404318U (en) * | 2014-11-11 | 2015-06-17 | 天津大学 | A kind of can the phase-change material temperature regulating system of cold-storage and thermal storage |
| CN205154229U (en) * | 2015-11-26 | 2016-04-13 | 中国矿业大学 | Attached water film board heat exchanger heat sink of high temperature mine tunnel wall |
| CN106593511B (en) * | 2017-01-10 | 2019-02-15 | 中国矿业大学 | A kind of thermal post_buckling roadway support cooling system and method |
| CN107218738B (en) * | 2017-06-06 | 2018-01-05 | 西安科技大学 | Mineral deposit cooperates with exploitation stope filling heat sink and method with underground heat |
| CN108035761A (en) * | 2017-12-05 | 2018-05-15 | 中国科学院武汉岩土力学研究所 | The surface graded cool-down method of mine country rock and gradient cooling device |
| CN110319622B (en) * | 2019-05-15 | 2021-03-16 | 宁波工程学院 | High-heat-conductivity ground temperature energy heat exchange tunnel system and construction method thereof |
| CN110593939A (en) * | 2019-09-30 | 2019-12-20 | 安徽理工大学 | Heat-damage mine coal face roadway heat-insulation and temperature-reduction system and method |
| CN111271112B (en) * | 2020-03-03 | 2021-10-15 | 安徽理工大学 | Multifunctional mine well wall cooling device and cooling method |
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