CN112128894B - Liquid refrigerant circulating device capable of utilizing ice and snow cold energy in season-crossing mode and using method - Google Patents
Liquid refrigerant circulating device capable of utilizing ice and snow cold energy in season-crossing mode and using method Download PDFInfo
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- CN112128894B CN112128894B CN202011051483.XA CN202011051483A CN112128894B CN 112128894 B CN112128894 B CN 112128894B CN 202011051483 A CN202011051483 A CN 202011051483A CN 112128894 B CN112128894 B CN 112128894B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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Abstract
The invention discloses a liquid refrigerant circulating device and a using method thereof, which utilize the cold energy of ice and snow in different seasons, belongs to the field of building energy conservation, and aims to solve the problems that the accumulated snow in the north is not easy to clean, and the problem that a large amount of cold energy stored in the accumulated snow in winter is wasted, the invention comprises a snow melting cellar, a cold water coil pipe, a water inlet pipe, a water return pipe and an air conditioning system, the snow melting cellar is buried in the outer area of the building body, and the inlet end of the snow melting cellar is communicated with the ground, the cold water coil is arranged at the bottom of the snow melting cellar, one end of the water inlet pipe is connected with the water inlet end of the cold water coil, the other end of the water inlet pipe sequentially penetrates through the side wall of the snow melting cellar and the wall of the building body and is connected with the water outlet end of an air conditioning system arranged in the basement of the building body, one end of the water return pipe is connected with the water outlet end of the cold water coil, and the other end of the water return pipe sequentially penetrates through the side wall of the snow melting cellar and the wall of the building body and is connected with the water inlet end of the. The invention is mainly used for cross-season utilization of cold energy of accumulated snow in winter.
Description
Technical Field
The invention relates to the field of building energy conservation, in particular to a liquid refrigerant circulating device for utilizing ice and snow cold energy in a season-crossing manner and a using method thereof.
Background
The problem of removing ice and snow on roads in winter in cold areas in northern China is always a heavy burden, which not only influences smooth traffic and traveling of residents, but also causes energy consumption and environmental pollution migration, hinders ecological environment construction and strategic implementation of sponge cities, and urgently needs to find effective solutions and technologies. Due to the fact that cities in northern cold areas of China are long in winter and have severe climate, the depth of a soil layer freezing line is mostly more than 1 meter, the rainwater recovery and treatment facility system is caused to face the problems of frost heaving, freezing and thawing and the like, continuous operation across seasons cannot be achieved, the related construction cost is improved, the facility use efficiency is reduced, and the low-impact development technology and the sponge city strategy are difficult to popularize.
At present, the traditional methods of manually and mechanically removing the ice and snow on the road in winter or throwing a snow melting agent and the like are still used for treating the ice and snow on the road in winter, so that the energy consumption and the environmental pollution are caused, the ice and snow removing time is delayed, and the humanity and the landscape quality of the urban environment are reduced. Although the traditional snow-melting agent is low in price, the environmental hazard is large, and the traditional snow-melting agent causes large hazard to urban artificial environments such as reinforced concrete structures of roads and bridges and metal underground pipe networks, or natural ecological environments such as soil and green land systems, so that the traditional snow-melting agent is generally limited or forbidden in some domestic cities, and the novel biological snow-melting agent is high in cost and difficult to popularize.
In order to meet the requirements of clearing obstacles and recycling resources of snowing roads in winter in cold cities, countries in Europe and America and the like develop advanced snow clearing equipment, develop a novel snow melting technology and actively utilize ice and snow resources. Among them, japan has developed a system for melting snow on a sidewalk by transporting heated seawater through a pipeline, using heat of seawater, or melting snow on a sidewalk and a parking lot by using terrestrial heat. In the aspect of snowfall treatment, mature technologies including cable heat storage, solar heat storage, underground pipe laying of a ground source heat pump and the like are developed in canada, the united states, northern europe and other countries. Although providing a new attempt, the technologies have high cost and poor stability, and are still difficult to popularize especially in high-density urban areas with complex environments.
Most of domestic cities still use a manual and mechanical mixed clearing method, ice and snow on the cleared roads, squares and the like are transported to the suburb snow dump by a snow transport vehicle and are abandoned, the method is original and clumsy, and the accumulated snow distributed in urban residential areas, garden areas and garden greenbelts can be killed by self. After beginning to spring, the ice and snow melting mixed with dust in winter and chemical dust fall can flow all the way around, thereby not only polluting urban and rural environments, but also wasting precious fresh water resources.
In winter, in cold cities in northern areas, ice and snow have large latent heat values, and huge cold energy treasury is stored, and in the replacement process in natural seasons, the ice and snow can be melted and heat can be absorbed by the rising of the temperature without consuming energy. In urban office, business, production and residential buildings, a large number of air conditioning systems are needed to reduce the temperature and maintain the environment of indoor life and work comfort.
In summary, it is very practical to develop a water-cooling circulation device and a use method thereof, which can fully utilize the cold energy in the snow cover in winter in the north to cool down summer and quickly recover the snow cover on the road surface in winter.
Disclosure of Invention
The invention provides a liquid refrigerant circulating device and a using method thereof, aiming at solving the problems that the snow in the north is not easy to clean and a large amount of cold energy stored in the snow in winter is wasted in the prior art;
a liquid refrigerant circulating device capable of utilizing ice and snow cold energy in a cross-season mode comprises an air conditioning system, and further comprises a snow melting cellar, a cold water coil, a water inlet pipe and a water return pipe, wherein the snow melting cellar is buried in an outer area of a building body, an inlet end of the snow melting cellar is communicated with the ground, the cold water coil is arranged at the bottom of the snow melting cellar, one end of the water inlet pipe is connected with a water inlet end of the cold water coil, the other end of the water inlet pipe sequentially penetrates through the side wall of the snow melting cellar and the wall of the building body and is connected with a water outlet end of the air conditioning system arranged in the basement of the building body, one end of the water return pipe is connected with a water outlet end of the cold water coil, and the other end of the water return pipe sequentially penetrates through the side wall of the snow melting cellar and the wall of the building body and is connected with a water inlet end of the air conditioning system arranged in the basement of the building body;
furthermore, the snow melting cellar comprises a snow falling bin and a snow storage bin, the volume of the snow storage bin is larger than that of the snow falling bin, the snow falling bin and the snow storage bin are buried underground, the snow falling bin is arranged at the top of the snow storage bin, the inlet end of the snow falling bin is communicated with the ground, the outlet end of the snow falling bin is communicated with the inlet end of the snow storage bin, a cold water coil is arranged at the bottom of the snow storage bin, a blocking cover is arranged at the inlet end of the snow falling bin and covers the inlet end of the snow falling bin, a protective grid is arranged at the outlet end of the snow falling bin and is fixedly connected with the inner wall of the snow falling bin, the outer layers of the snow falling bin and the snow storage bin are wrapped with heat preservation layers, and a reinforced concrete layer is wrapped outside the heat preservation layers;
furthermore, a drain pipe is arranged at the bottom of the snow storage bin, one end of the drain pipe is communicated with the bottom of the snow storage bin, the other end of the drain pipe is communicated with an adjacent urban drainage system, and an electromagnetic valve is arranged at one end of the drain pipe close to the bottom of the snow storage bin;
furthermore, a first support is arranged between the water inlet pipe and a reinforced concrete layer in the snow melting cellar, a heat insulation layer is arranged on the inner side of the first support, and the heat insulation layer is wrapped on the water inlet pipe; a second bracket is arranged between the water return pipe and a reinforced concrete layer in the snow melting cellar, and a heat insulation layer is arranged on the inner side of the second bracket and wraps the water return pipe;
further, the air conditioning system comprises an air conditioning box, an air supply pipeline, a return air pipeline and a refrigerating unit;
the air conditioning box is arranged in a basement of a building body and comprises a mixed static pressure box, a primary filter, a surface cooling treatment section, a heating section, a humidifying section, a fan, a flow equalizing section, a filtering and sterilizing section and a static pressure box, wherein the mixed static pressure box, the primary filter, the surface cooling treatment section, the heating section, the humidifying section, the fan, the flow equalizing section, the filtering and sterilizing section and the static pressure box are sequentially connected through a pipeline;
one end of the air supply pipeline is connected with an air outlet of the static pressure box, the other end of the air supply pipeline is distributed and extended along a room inside the building body, a plurality of air supply branches are arranged on the air supply pipeline, and the outlet end of each air supply branch is communicated with the wall of one room;
one end of the return air pipeline is connected with a return air inlet of the hybrid static pressure box, the other end of the return air pipeline extends along the room inside the building body in a distributed manner, a plurality of return air branches are arranged on the return air pipeline, and the inlet end of each return air branch is communicated with the wall of one room;
the water inlet of the refrigerating unit is connected with one output end of the first three-way valve, the other end of the water inlet pipe is connected with the other output end of the first three-way valve, and the water outlet end of the surface cooling treatment section is connected with one input end of the first three-way valve;
the water outlet of the refrigerating unit is connected with one output end of the second three-way valve, the other end of the water return pipe is connected with the other output end of the second three-way valve, and the water inlet end of the surface cold treatment section is connected with one input end of the second three-way valve.
Furthermore, the air conditioning system also comprises a fresh air pipeline, one end of the fresh air pipeline is connected with a fresh air inlet end of the hybrid static pressure box, the other end of the fresh air pipeline penetrates through the wall of the building body and is arranged outside the building body, and a filter plate is arranged at the other end of the fresh air pipeline;
further, the air conditioning system comprises an air disc system, a trunk water outlet pipe, a trunk water return pipe and a refrigerating unit;
the refrigerating unit is arranged in a basement of a building body, a water inlet of the refrigerating unit is connected with one output end of the third three-way valve, the other end of the water inlet pipe is connected with the other output end of the third three-way valve, and one end of the main water outlet pipe is connected with one input end of the third three-way valve; the water outlet of the refrigerating unit is connected with one output end of a fourth three-way valve, the other end of a water return pipe is connected with the other output end of the fourth three-way valve, the water inlet end of a main water return pipe is connected with one input end of the fourth three-way valve, the other end of the main water outlet pipe is distributed and extended along a building body room, a plurality of water outlet branches are arranged on the main water outlet pipe, each water outlet branch is connected with the water outlet end of one fan coil in the corresponding air coil system, the other end of the main water return pipe is distributed and extended along the building body room, a plurality of water return branches are arranged on the main water return pipe, and each water return branch is connected with the water return end of one fan coil in the corresponding air coil system;
a use method of a liquid refrigerant circulating device utilizing ice and snow cold energy across seasons is realized by the following steps:
the method comprises the following steps: arranging a snow melting cellar: excavating an underground space near a building body, arranging a snow melting cellar wrapped with a reinforced concrete layer and insulated in the excavated underground space, ensuring that a snow inlet of the snow melting cellar is parallel to and communicated with the ground, and the snow melting cellar is used for storing accumulated snow in winter;
step two: arranging a heat exchange system: arranging a cold water coil pipe at the bottom of the snow melting cellar, simultaneously connecting a water inlet pipe with a water inlet of the cold water coil pipe, connecting a water return pipe with a water return port of the cold water coil pipe, arranging supports at the joints of the water inlet pipe and the water return pipe with the snow melting cellar respectively, and arranging a heat insulation layer between the supports and the water inlet pipe or the water return pipe;
step three: the heat exchange system is connected with the air conditioning system and is used for transmitting the cold energy stored in the accumulated snow to the air conditioning system and sharing the working energy consumption of a refrigerating unit in the air conditioning system;
step four: the air conditioning system performs cold-heat conversion on hot air entering the air conditioning system by using cold energy transferred by the heat exchange system, and discharges the air cooled by the cold energy into each room of a building body for reducing the temperature in the room;
furthermore, the air conditioning system in the third step consists of an air conditioning box, an air supply pipeline, an air return pipeline, a fresh air pipeline and a refrigerating unit, wherein the other end of the water inlet pipe and the water outlet end of the refrigerating unit are connected with the water outlet of the surface cooling treatment section in the air conditioning box through a three-way valve, the other end of the water return pipe and the water inlet end of the refrigerating unit are connected with the water inlet of the surface cooling treatment section in the air conditioning box through a three-way valve, the cold energy extracted from the accumulated snow in the snow melting cellar is subjected to cold and heat conversion on return air entering the air conditioning box from each room in the building along the air return pipeline and fresh air sucked from the outside of the building along the fresh air pipeline through the air conditioning box, and the cooled mixed air is transmitted to each room of each building through the air supply pipeline through the air conditioning box;
further, the air conditioning system in the third step is composed of an air disc system, a main water outlet pipe, a main water return pipe and a refrigerating unit, the other end of the water inlet pipe and the water outlet end of the refrigerating unit are connected with a water outlet of the main water outlet pipe through a three-way valve, the other end of the water return pipe and the water inlet end of the refrigerating unit are connected with a water inlet of the main water return pipe through a three-way valve, cold energy extracted from accumulated snow in the snow melting pit is transmitted to fan coil pipes arranged in each room in the air disc system through the main water outlet pipe and the main water return pipe, cold and heat conversion is carried out on return air in the room through each fan coil pipe, and cooled air is fed back to the room.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a water-cooling circulating device for recycling ice and snow cold energy in a cross-season manner and a using method thereof.A snow melting cellar is arranged to uniformly recycle snow in winter, the recycled snow is stored in the snow melting cellar to ensure that the cold energy is not lost, the snow melting cellar is arranged near a building and adjacent to a street, and the snow can be directly cleaned into the snow melting cellar after snowing, so that the secondary cleaning, accumulation and transportation treatment of the snow on the street in a delayed manner are avoided, the snow cleaning speed is greatly improved, and the smooth traffic on the street is ensured;
secondly, in the later spring and summer, the indoor temperature is higher, the requirements of various buildings and facilities for indoor life, study, office space, equipment rooms, machine rooms, storehouses and the like are gradually increased, meanwhile, in the household life, most residents adjust the indoor temperature through the air conditioner so that people can comfortably live, the refrigerant of the air conditioner is mostly Freon, the Freon can corrode the ozone layer to damage the living environment of people, meanwhile, the air conditioner can generate a large amount of energy consumption when working, cold energy is used as a new cold source in the air conditioning system to carry out cold-heat conversion on hot air in the air conditioning unit by utilizing the cold energy stored in the snow melting cellar, the cooled air is discharged into the room again to reduce the indoor temperature, the cold energy of the snow is very clean, the snow cannot pollute the environment when in use, and the introduction of the cold energy can also reduce the working time of the refrigerating unit in the air conditioning system, the energy consumption of the refrigerating unit is greatly reduced;
drawings
FIG. 1 is a schematic view of the structure of the apparatus of the present invention (an air conditioning system with an air conditioning box);
FIG. 2 is a schematic view of an air conditioning cabinet according to the present invention;
FIG. 3 is a schematic view of the port of the fresh air duct of the present invention;
FIG. 4 is a schematic view of the structure of the device of the present invention (with a wind disk system in the air conditioning system);
FIG. 5 is a schematic view of a water-cooled coil of the present invention.
In the figure, 1 snow cellar, 2 baffle covers, 3 protective grids, 4 cold water coil pipes, 5 water inlet pipes, 6 water return pipes, 7 air-conditioning boxes, 71 hybrid static pressure boxes, 72 primary filters, 73 surface cooling treatment sections, 74 heating sections, 75 humidifying sections, 76 fans, 77 flow equalizing sections, 78 filtering and sterilizing sections, 79 static pressure boxes, 8 air supply pipelines, 9 return air pipelines, 10 fresh air pipelines, 11 filter plates, 12 air disc systems, 13 main water outlet pipes, 14 main water return pipes, 15 first supports, 16 second supports, 17 refrigerating units and 18 water discharge pipes.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 5, and the embodiment provides a liquid refrigerant circulating device for cross-season utilization of ice and snow cold energy, which comprises an air conditioning system, the device also comprises a snow melting cellar 1, a cold water coil 4, a water inlet pipe 5 and a water return pipe 6, wherein the snow melting cellar 1 is buried in the outer area of the building body, and the entrance point of the snow melting cellar 1 is communicated with the ground, the cold water coil 4 is arranged at the bottom of the snow melting cellar 1, one end of the water inlet pipe 5 is connected with the water inlet end of the cold water coil 4, the other end of the water inlet pipe 5 sequentially penetrates through the side wall of the snow melting cellar 1 and the wall of the building body and is connected with the water outlet end of the air conditioning system arranged in the basement of the building body, one end of the water return pipe 6 is connected with the water outlet end of the cold water coil 4, and the other end of the water return pipe 6 sequentially penetrates through the side wall of the snow melting cellar 1 and the wall of the building body and is connected with the water inlet end of the air conditioning system arranged in the basement of the building body.
The embodiment provides a liquid refrigerant circulating device for utilizing ice and snow cold energy in a cross-season mode, which utilizes the underground space of an outdoor open space or shallow root planting layer green belt in a region adjacent to a building, is provided with an ice and snow storage cellar or a snow storage pool (a snow melting cellar 1), collects and stores ice and snow or other ice and snow resources removed by a road in winter, controls civil living or public buildings and the indoor temperature of industrial plants through an air conditioning system after the temperature rises in spring, reduces the working environment temperature of rooms and specific equipment, utilizes the liquid refrigerant circulation exchange in a certain period, utilizes the force replaced in natural seasons, melts ice and snow in a cross-season mode, and utilizes the cold energy. The melted snow water enters a city drainage system through a drainage pipe at the bottom of the pool or enters an underground water collecting pool for recycling after being filtered and purified.
The cold energy of the melting water of the snow melting cellar 1 can be recycled for an air conditioning system by adopting a closed liquid refrigerant in a cross-season mode. The water cooling coil pipe 4 is placed at the bottom of the snow melting cellar 1, liquid media are arranged on the inner side and the outer side of the heat exchange surface at the moment, and on the basis of the convection heat exchange principle, the cold energy provided by ice and snow melting water of a natural cold source is transmitted to the air-conditioning box in a closed pipeline as a system cold source by taking the ethylene glycol water solution as a refrigerant and then serving as a basic cold load, so that the starting time of refrigeration equipment is shortened, and the energy conservation and emission reduction are realized to the greatest extent. The copper water-cooling heat exchange coil is arranged in the molten water, the glycol aqueous solution flowing in the coil does not have the freezing danger below zero, the safe circulation of a water system in the coil is realized, and the return water receiving the cold energy is used as chilled water and is sent back to the tail end of an air conditioner to provide the cold energy for the air conditioning equipment. This kind of continuous exchange process, until all snow in the pit well melts totally, get rid of the snow water that melts through the drain pipe after, the system will stop work, until the winter of the next year restarts ice and snow and collect, accomplish the green application of crossing season of the cold volume of melting snow of a cycle.
After the temperature rises in spring, the ice and snow in the outdoor closed underground pit are delivered into a civil dwelling or public building equipment room through a cold water circulating system, and the working environment temperature of the room is reduced by means of an air conditioning system. The invention develops a new green energy approach for urban living environment construction, is beneficial to ensuring urban traffic safety, supports sponge urban construction, and has multiple social and economic benefits
The second embodiment is as follows: the embodiment is described with reference to fig. 1 to 5, and the embodiment further defines the snow melting cellar 1 as the first specific embodiment, in the embodiment, the snow melting cellar 1 comprises a snow falling bin and a snow storage bin, the volume of the snow storage bin is larger than that of the snow falling bin, the snow falling bin and the snow storage bin are both buried underground, the snow falling bin is arranged at the top of the snow storage bin, the inlet end of the snow falling bin is communicated with the ground, the outlet end of the snow falling bin is communicated with the inlet end of the snow storage bin, a cold water coil pipe 4 is arranged at the bottom of the snow storage bin, the inlet end of the snow falling bin is provided with a blocking cover 2, the blocking cover 2 covers the inlet end of the snow falling bin, the outlet end of the snow falling bin is provided with a protective grid 3, the protective grid 3 is fixedly connected with the inner wall of the snow falling bin, the outer layers of the snow falling bin and the snow storage bin are wrapped with heat preservation layers, and the outer layers of the heat preservation layers are wrapped with reinforced concrete layers. Other components and connection modes are the same as those of the first embodiment.
In this embodiment, the simplified small-size snow storage well, cellar for storing things well pool wall adopt the brick structure, and the constructional column can be established to impervious concrete bottom plate, the cellar for storing things well of depth overlength in the centre, firm pool wall. The large-scale snow storage cellar well is preferably made of reinforced concrete pool walls to prevent collapse. The planar dimension and the degree of depth of cellar for storing things well can set up according to actual need, can be 2 x 6 meters usually, the well is dark about 2.5 meters, the heat preservation door (fender lid 2) is established to the top filler opening of cellar for storing things well, be used for changing warm back in season, maintain the interior temperature of well, avoid cold volume to run off, protection grid 3 is arranged in preventing to clear away the snow in-process with the bold ice-cube clean in advance to melt in the cellar for storing things 1 together, the ice-cube hardness is great falls from the eminence and smashes the cold water coil 4 that is located 1 bottom of melting the cellar for storing things, the heat preservation is used for maintaining the interior temperature of well, avoid cold volume to run off.
The third concrete implementation mode: the present embodiment is described with reference to fig. 1 to 5, and is further limited to the snow storage bin described in the second embodiment, in the present embodiment, a drain pipe 18 is provided at the bottom of the snow storage bin, one end of the drain pipe 18 is provided to communicate with the bottom of the snow storage bin, the other end of the drain pipe 18 is provided to communicate with an adjacent urban drainage system, and an electromagnetic valve is provided at one end of the drain pipe 18 close to the bottom of the snow storage bin. The other components and the connection mode are the same as those of the second embodiment.
So set up, the snow water that the spring and summer melts through the drain pipe 18 of bottom of the pool, arranges to adjacent underground water pond retrieval and utilization, or directly arranges into the sewer pipe net, if the retrieval and utilization, will pass through filterable flow. The bottom of the pool sets up the backwash mouth, be used for regular cleanness, guarantee sanitation and safety in the air conditioning input, the water accumulation that has avoided snow to melt is in melting snow cellar 1, because snow can mix with debris such as a small amount of mud and branch and leaf that drops, nevertheless the snow water volume after melting can be less than the rainfall, more preferred set up the drain pipe on the lateral wall, the drain pipe apart from the bottom keep apart from can properly, between 8-20 cm, and simultaneously, the bottom in snow storehouse needs regular desilting.
The fourth concrete implementation mode: the embodiment is described with reference to fig. 1 to 5, and the embodiment further defines the water inlet pipe 5 and the water return pipe 6 in the third embodiment, in the embodiment, a first bracket 15 is arranged between the water inlet pipe 5 and a reinforced concrete layer in the snow melting cellar 1, and an insulating layer is arranged on the inner side of the first bracket 15 and wraps the water inlet pipe 5; a second support 16 is arranged between the water return pipe 6 and a reinforced concrete layer in the snow melting cellar 1, a heat preservation layer is arranged on the inner side of the second support 16, and the heat preservation layer is wrapped on the water return pipe 6. Other components and connection modes are the same as those of the third embodiment.
So set up, set up fixed bolster (a support 15 and No. two supports 16) in wall of a well exit, prevent expend with heat and contract with cold to the influence that 4 heat exchanges of water-cooling coil produced, especially expend with heat and contract with cold to the wall of a well and the hidden danger of revealing that inlet tube 5 and wet return 6 junction produced.
The fifth concrete implementation mode: the present embodiment will be described with reference to fig. 1 to 5, and the present embodiment is further limited to the air conditioning system according to the fourth embodiment, which includes an air conditioning box 7, a blowing duct 8, a return duct 9, and a refrigerating unit 17;
the air conditioning box 7 is arranged in a basement of a building body, the air conditioning box 7 comprises a mixed static pressure box 71, a primary filter 72, a surface cooling treatment section 73, a heating section 74, a humidifying section 75, a fan 76, a flow equalizing section 77, a filtering and sterilizing section 78 and a static pressure box 79, and the mixed static pressure box 71, the primary filter 72, the surface cooling treatment section 73, the heating section 74, the humidifying section 75, the fan 76, the flow equalizing section 77, the filtering and sterilizing section 78 and the static pressure box 79 are sequentially connected through pipelines;
one end of the air supply pipeline 8 is connected with an air outlet of the static pressure box 79, the other end of the air supply pipeline 8 extends along the room inside the building body in a distributed manner, a plurality of air supply branches are arranged on the air supply pipeline 8, and the outlet end of each air supply branch is communicated with the wall of one room;
one end of a return air pipeline 9 is connected with a return air inlet of the hybrid static pressure box 71, the other end of the return air pipeline 9 is distributed and extended along rooms in the building body, a plurality of return air branch circuits are arranged on the return air pipeline 9, and the inlet end of each return air branch circuit is communicated with the wall of one room;
the water inlet of the refrigerating unit 17 is connected with one output end of the first three-way valve, the other end of the water inlet pipe 5 is connected with the other output end of the first three-way valve, and the water outlet end of the surface cooling treatment section 73 is connected with one input end of the first three-way valve;
the water outlet of the refrigerating unit 17 is connected with one output end of the second three-way valve, the other end of the water return pipe 6 is connected with the other output end of the second three-way valve, and the water inlet end of the surface cooling treatment section 73 is connected with one input end of the second three-way valve. The other components and the connection mode are the same as those of the fourth embodiment.
In the embodiment, the water return pipe 6 enters the air conditioning box 7 of the basement of a nearby building, return air in the building and fresh air introduced from the outside are mixed to serve as initial air volume, at the moment, the initial air volume ingeniously utilizes snow melting cold volume, cold volume transfer from winter cold volume to summer air conditioning system is realized, and the utilization process of sustainable clean energy is realized.
A variable frequency fan 76 is arranged in the air conditioning box 7 as a power source of the whole circulation process, and a mixed static pressure box 71 (as a device for mixing outdoor fresh air and return air), a surface cooling treatment section 73, a heating section 74, a humidifying section 75, a flow equalizing section 77, a filtering and sterilizing section 78 and a static pressure box 79 are also arranged. After the fresh air and the indoor return air are mixed, the fresh air and the indoor return air pass through the parts one by one to form cold air, and then the cold air is sent into a building room through the air supply pipeline 8.
The sixth specific implementation mode: the present embodiment is described with reference to fig. 1 to 5, and is further limited to the air conditioning system according to the third embodiment, in the present embodiment, the air conditioning system further includes a fresh air duct 10, one end of the fresh air duct 10 is connected to a fresh air inlet end of the hybrid static pressure tank 71, the other end of the fresh air duct 10 passes through a wall of the building and is disposed outside the building, and the other end of the fresh air duct 10 is provided with a filter plate 11. Other components and connection modes are the same as those of the third embodiment.
In the present embodiment, the fresh air duct 10 is used to introduce fresh air from the outside and mix the fresh air with return air in the building as the initial amount of cold air.
The seventh embodiment: the present embodiment is described with reference to fig. 1 to 5, and is further limited to the air conditioning system according to the third embodiment, and in the present embodiment, the air conditioning system includes a wind disk system 12, a main water outlet pipe 13, a main water return pipe 14, and a refrigeration unit 17;
the refrigerating unit 17 is arranged in a basement of a building body, a water inlet of the refrigerating unit 17 is connected with one output end of the third three-way valve, the other end of the water inlet pipe 5 is connected with the other output end of the third three-way valve, and one end of the main water outlet pipe 13 is connected with one input end of the third three-way valve; the water outlet of the refrigerating unit 17 is connected with one output end of a fourth three-way valve, the other end of the water return pipe 6 is connected with the other output end of the fourth three-way valve, the water inlet end of a main water return pipe 14 is connected with one input end of the fourth three-way valve, the other end of the main water outlet pipe 13 extends along the room of the building body in a distributed manner, a plurality of water outlet branch circuits are arranged on the main water outlet pipe 13, each water outlet branch circuit is connected with the water outlet end of one fan coil in the corresponding air disc system 12, the other end of the main water return pipe 14 extends along the room of the building body in a distributed manner, a plurality of water return branch circuits are arranged on the main water return pipe 14, and each water return branch circuit is connected with the water return end of one fan coil in the corresponding air disc system 12. Other components and connection modes are the same as those of the third embodiment.
In this embodiment, the cooling capacity in the water return pipe 6 can be matched with each fan coil in the air coil system 12 to serve as a cooling source. At the moment, the refrigerating unit can be independently used as basic cold load supply in a time period with a small cold load, and can be started to produce more chilled water in the midday and a time period with strong solar radiation on the basis, so that the requirement of the maximum cold load in summer is met. The cold water pipeline, namely the water inlet pipe 5 and the water return pipe 6 in the figure, needs to be insulated and prevent condensation, and the cold energy is ensured not to be lost in the stratum conveying process.
The specific implementation mode is eight: the present embodiment is described with reference to fig. 1 to 5, and provides a method for using a liquid refrigerant circulation device that uses ice and snow coldness across seasons, the method being implemented by the following steps:
the method comprises the following steps: arranging a snow melting cellar 1: excavating an underground space near a building body, arranging a snow melting cellar 1 wrapped with a reinforced concrete layer and insulated in the excavated underground space, ensuring that a snow inlet of the snow melting cellar 1 is parallel to and communicated with the ground, and the snow melting cellar 1 is used for storing accumulated snow in winter;
step two: arranging a heat exchange system: arranging a cold water coil 4 at the bottom of the snow melting cellar 1, simultaneously connecting a water inlet pipe 5 with a water inlet of the cold water coil 4, connecting a water return pipe 6 with a water return port of the cold water coil 4, respectively arranging a bracket at the connection part of the water inlet pipe 5 and the water return pipe 6 with the snow melting cellar 1, and arranging a heat insulation layer between the bracket and the water inlet pipe 5 or the water return pipe 6;
step three: the heat exchange system is connected with the air conditioning system and is used for transmitting the cold energy stored in the accumulated snow to the air conditioning system and sharing the working energy consumption of a refrigerating unit 17 in the air conditioning system;
step four: the air conditioning system performs cold-heat conversion on hot air entering the air conditioning system by using cold energy transferred by the heat exchange system, and discharges the air cooled by the cold energy into each room of a building body for reducing the temperature in the room.
In the embodiment, the first step is a winter snow melting and collecting process, underground space potentials of road green belts and surrounding open spaces of buildings are excavated, nearby snow storage, decentralized implementation and the like are established to consume road ice and snow, and the process of storing winter snow melting cold energy is completed;
and step two is a liquid refrigerant exchange process of the cross-season cold energy after snow melting and collection. A water pump in the air-conditioning system 7 is started, glycol aqueous solution backwater from the air-conditioning system 7 enters the cold water coil 4 arranged at the lower part of the snow melting cellar to circularly flow, and is subjected to cold energy exchange with zero-temperature melt water which is tri-state coexistent with zero-temperature ice and snow water outside the copper cold water coil 4, and then returns to the air-conditioning system 7 through a water supply pipe to finish the processes of cold energy absorption and cold energy transmission of a liquid refrigerant, namely the processes of cross-season extraction and transmission of cold energy are realized;
and step three and step four are the application process of the liquid refrigerant air conditioning system. The liquid refrigerant transports the cold energy to the basement of the building near the snow melting cellar 1 through a water supply pipe, and at the moment, the application of the refrigerant can adopt at least two modes. One of the two is connected with the surface cooling treatment section 73, and when the air conditioning cooling load is low, the cooling capacity of the air conditioning room can be met by adopting the cooling capacity of the part of liquid. In a time period with larger instantaneous cold load, the refrigerating unit can be started to supplement cold energy, so that the aims of energy conservation and emission reduction are fulfilled. The second is connected with the fan coil system 12, at the moment, the cold energy transmitted to the air conditioner room by the glycol aqueous solution can be extracted by the heat exchanger to be made into chilled water, and the glycol aqueous solution can also be directly connected with the water system of the fan coil to finish the whole season-crossing cold energy transfer process.
The specific implementation method nine: this embodiment will be described with reference to fig. 1 to 5, and is further limited to the third step described in the third embodiment, and in this embodiment, the air conditioning system in the third step consists of an air conditioning box 7, an air supply pipeline 8, an air return pipeline 9, a fresh air pipeline 10 and a refrigerating unit 17, the other end of the water inlet pipe 5 and the water inlet end of the refrigerating unit 17 are connected with the water outlet of the surface cooling treatment section 73 in the air conditioning box 7 through a three-way valve, the other end of the water return pipe 6 and the water outlet end of the refrigerating unit 17 are connected with the water inlet of the surface cooling treatment section 73 in the air conditioning box 7 through a three-way valve, the cold energy extracted from the accumulated snow in the snow melting cellar 1 is used for carrying out cold-heat conversion on the return air entering the air conditioning box 7 from each room in the building along the air return pipeline 9 and the fresh air sucked from the outside of the building along the fresh air pipeline 10 through the air conditioning box 7, and the mixed air after being cooled is delivered to each room of each building body through an air supply pipeline 8 by an air conditioning box 7. The other components and the connection mode are the same as those of the eighth embodiment.
In this embodiment, the heat exchange part is connected to the surface cooling treatment section 73, the cold water (in the water supply pipe) obtained by the snow melting all-air temperature and enthalpy reduction process can be used as the basic part of the air conditioning cold source in summer, i.e. daily cold, and when the air conditioning cold load is higher between 12 noon and 15 pm, the refrigerating unit is started to supplement cold and enter the surface cooling treatment section 73, and at this time, the cold amount required to be provided by the air conditioning system can be satisfied, it is noted that one three-way valve used in this embodiment can adjust the water inlet end of the refrigerating unit 17 to be connected to the water outlet of the surface cooling treatment section 73 in the air conditioning box 7 or the other end of the water inlet pipe 5 to be connected to the water outlet of the surface cooling treatment section 73 in the air conditioning box 7, and the other three-way valve can adjust the water outlet end of the refrigerating unit 17 to be connected to the water inlet of the surface cooling treatment section 73 in the air conditioning box 7 or the other end of the water return pipe 6 to be connected to the water inlet of the surface cooling treatment section 73 in the air conditioning box 7, the cold sources are respectively taken in different modes and applied in different time periods, the refrigerating unit 17 is used as the cold source when the temperature is higher at noon, and the cold energy in the snow melting cellar 1 is used as the cold source at other times.
The detailed implementation mode is ten: this embodiment will be described with reference to fig. 1 to 5, and is further limited to the third step described in the third embodiment, and in this embodiment, the air conditioning system in the third step consists of an air disc system 12, a main water outlet pipe 13, a main water return pipe 14 and a refrigerating unit 17, the other end of the water inlet pipe 5 and the water outlet end of the refrigerating unit 17 are connected with the water outlet of the main water outlet pipe 13 through a three-way valve, the other end of the water return pipe 6 and the water inlet end of the refrigerating unit 17 are connected with the water inlet of the main water return pipe 14 through a three-way valve, the cold energy extracted from the accumulated snow in the snow melting cellar 1 is transmitted to fan coil pipes arranged in each room in the air disc system 12 through the main water outlet pipe 13 and the main water return pipe 14, and the return air in the room is subjected to cold-heat conversion through each fan coil, and the cooled air is fed back into the room. The other components and the connection mode are the same as those of the eighth embodiment.
In this embodiment, the heat exchange part is connected to the air panel system 12, the cold water (in the water supply pipe) obtained by the snow melting process of total air temperature and enthalpy reduction can be used as the basic part of the cold source of the air conditioner in summer, i.e. daily cold energy, when the cold load of the air conditioner is high between 12 noon and 15 pm, the refrigerating unit is started to supplement cold energy and enter the main water return pipe 14, and then the main water return pipe 14 conveys the cold energy cooled water to each fan coil one by one for cooling each room, it is worth noting that one three-way valve used in this embodiment can adjust the water inlet end of the refrigerating unit 17 to be connected to the water outlet of the main water return pipe 13 or the other end of the water inlet pipe 5 to be connected to the water outlet of the main water return pipe 13, and the other three-way valve can adjust the water outlet end of the refrigerating unit 17 to be connected to the water inlet of the main water return pipe 14 or the other end of the water return pipe 5 to be connected to the water inlet of the main water return pipe 14 The ports are connected, the intake modes of the cold sources are different, the application time intervals are different, the refrigerating unit 17 is used as the cold source when the temperature is higher at noon, and the cold energy in the snow melting cellar 1 is used as the cold source at other times.
Meanwhile, considering that the volume of the snow melting cellar 1 is limited, the cold energy in the snow melting cellar 1 is more cold sources generally used for small-sized single buildings, and the technical scheme in the fifth specific implementation mode or the seventh specific implementation mode can be properly selected according to the building structure and the energy consumption loss in practical application.
Claims (3)
1. The utility model provides a stride liquid refrigerant circulating device of season utilization ice and snow cold volume, it includes air conditioning system, its characterized in that: the device further comprises a snow melting cellar (1), a cold water coil (4), a water inlet pipe (5) and a water return pipe (6), wherein the snow melting cellar (1) is buried in an outer area of a building body, an inlet end of the snow melting cellar (1) is communicated with the ground, the cold water coil (4) is arranged at the bottom of the snow melting cellar (1), one end of the water inlet pipe (5) is connected with a water inlet end of the cold water coil (4), the other end of the water inlet pipe (5) sequentially penetrates through the side wall of the snow melting cellar (1) and the wall of the building body and is connected with a water outlet end of an air conditioning system arranged in the basement of the building body, one end of the water return pipe (6) is connected with a water outlet end of the cold water coil (4), and the other end of the water return pipe (6) sequentially penetrates through the side wall of the snow melting cellar (1) and the wall of the building body and is connected with a water inlet end of the air conditioning system arranged in the basement of the building body;
the snow melting cellar (1) comprises a snow falling bin and a snow storage bin, the volume of the snow storage bin is larger than that of the snow falling bin, the snow falling bin and the snow storage bin are buried underground, the snow falling bin is arranged at the top of the snow storage bin, the inlet end of the snow falling bin is communicated with the ground, the outlet end of the snow falling bin is communicated with the inlet end of the snow storage bin, a cold water coil (4) is arranged at the bottom of the snow storage bin, a blocking cover (2) is arranged at the inlet end of the snow falling bin, the blocking cover (2) covers the inlet end of the snow falling bin, a protective grating (3) is arranged at the outlet end of the snow falling bin, the protective grating (3) is fixedly connected with the inner wall of the snow falling bin, the outer layers of the snow falling bin and the snow storage bin are wrapped by a heat insulation layer, and a reinforced concrete layer is wrapped outside the heat insulation layer;
a drain pipe (18) is arranged at the bottom of the snow storage bin, one end of the drain pipe (18) is communicated with the bottom of the snow storage bin, the other end of the drain pipe (18) is communicated with an adjacent urban drainage system, and an electromagnetic valve is arranged at one end of the drain pipe (18) close to the bottom of the snow storage bin;
a first support (15) is arranged between the water inlet pipe (5) and a reinforced concrete layer in the snow melting cellar (1), a heat insulation layer is arranged on the inner side of the first support (15), and the heat insulation layer is wrapped on the water inlet pipe (5); a second bracket (16) is arranged between the water return pipe (6) and a reinforced concrete layer in the snow melting cellar (1), a heat insulation layer is arranged on the inner side of the second bracket (16), and the heat insulation layer is wrapped on the water return pipe (6);
the air conditioning system comprises an air conditioning box (7), an air supply pipeline (8), a return air pipeline (9) and a refrigerating unit (17);
the air conditioning box (7) is arranged in a basement of a building body, the air conditioning box (7) comprises a mixed static pressure box (71), a primary filter (72), a surface cooling treatment section (73), a heating section (74), a humidifying section (75), a fan (76), a flow equalizing section (77), a filtering and sterilizing section (78) and a static pressure box (79), and the mixed static pressure box (71), the primary filter (72), the surface cooling treatment section (73), the heating section (74), the humidifying section (75), the fan (76), the flow equalizing section (77), the filtering and sterilizing section (78) and the static pressure box (79) are sequentially connected through pipelines;
one end of the air supply pipeline (8) is connected with an air outlet of the static pressure box (79), the other end of the air supply pipeline (8) is distributed and extended along a room inside a building body, a plurality of air supply branches are arranged on the air supply pipeline (8), and the outlet end of each air supply branch is communicated with the wall of one room;
one end of a return air pipeline (9) is connected with a return air inlet of the hybrid static pressure box (71), the other end of the return air pipeline (9) is distributed and extended along a room inside a building body, a plurality of return air branches are arranged on the return air pipeline (9), and the inlet end of each return air branch is communicated with the wall of one room;
a water inlet of the refrigerating unit (17) is connected with one output end of the first three-way valve, the other end of the water inlet pipe (5) is connected with the other output end of the first three-way valve, and a water outlet end of the surface cooling treatment section (73) is connected with one input end of the first three-way valve;
a water outlet of the refrigerating unit (17) is connected with one output end of the second three-way valve, the other end of the water return pipe (6) is connected with the other output end of the second three-way valve, and a water inlet end of the surface cooling treatment section (73) is connected with one input end of the second three-way valve;
the air conditioning system further comprises a fresh air pipeline (10), one end of the fresh air pipeline (10) is connected with a fresh air inlet end of the hybrid static pressure box (71), the other end of the fresh air pipeline (10) penetrates through the wall of the building body and is arranged outside the building body, and a filter plate (11) is arranged at the other end of the fresh air pipeline (10).
2. The utility model provides a stride liquid refrigerant circulating device of season utilization ice and snow cold volume, it includes air conditioning system, its characterized in that: the device further comprises a snow melting cellar (1), a cold water coil (4), a water inlet pipe (5) and a water return pipe (6), wherein the snow melting cellar (1) is buried in an outer area of a building body, an inlet end of the snow melting cellar (1) is communicated with the ground, the cold water coil (4) is arranged at the bottom of the snow melting cellar (1), one end of the water inlet pipe (5) is connected with a water inlet end of the cold water coil (4), the other end of the water inlet pipe (5) sequentially penetrates through the side wall of the snow melting cellar (1) and the wall of the building body and is connected with a water outlet end of an air conditioning system arranged in the basement of the building body, one end of the water return pipe (6) is connected with a water outlet end of the cold water coil (4), and the other end of the water return pipe (6) sequentially penetrates through the side wall of the snow melting cellar (1) and the wall of the building body and;
the snow melting cellar (1) comprises a snow falling bin and a snow storage bin, the volume of the snow storage bin is larger than that of the snow falling bin, the snow falling bin and the snow storage bin are buried underground, the snow falling bin is arranged at the top of the snow storage bin, the inlet end of the snow falling bin is communicated with the ground, the outlet end of the snow falling bin is communicated with the inlet end of the snow storage bin, a cold water coil (4) is arranged at the bottom of the snow storage bin, a blocking cover (2) is arranged at the inlet end of the snow falling bin, the blocking cover (2) covers the inlet end of the snow falling bin, a protective grating (3) is arranged at the outlet end of the snow falling bin, the protective grating (3) is fixedly connected with the inner wall of the snow falling bin, the outer layers of the snow falling bin and the snow storage bin are wrapped by a heat insulation layer, and a reinforced concrete layer is wrapped outside the heat insulation layer;
a drain pipe (18) is arranged at the bottom of the snow storage bin, one end of the drain pipe (18) is communicated with the bottom of the snow storage bin, the other end of the drain pipe (18) is communicated with an adjacent urban drainage system, and an electromagnetic valve is arranged at one end of the drain pipe (18) close to the bottom of the snow storage bin;
a first support (15) is arranged between the water inlet pipe (5) and a reinforced concrete layer in the snow melting cellar (1), a heat insulation layer is arranged on the inner side of the first support (15), and the heat insulation layer is wrapped on the water inlet pipe (5); a second bracket (16) is arranged between the water return pipe (6) and a reinforced concrete layer in the snow melting cellar (1), a heat insulation layer is arranged on the inner side of the second bracket (16), and the heat insulation layer is wrapped on the water return pipe (6);
the air conditioning system comprises an air disc system (12), a main water outlet pipe (13), a main water return pipe (14) and a refrigerating unit (17); the refrigerating unit (17) is arranged in a basement of a building body, a water inlet of the refrigerating unit (17) is connected with one output end of the third three-way valve, the other end of the water inlet pipe (5) is connected with the other output end of the third three-way valve, and one end of the main water outlet pipe (13) is connected with one input end of the third three-way valve; the water outlet of the refrigerating unit (17) is connected with one output end of a fourth three-way valve, the other end of a water return pipe (6) is connected with the other output end of the fourth three-way valve, the water inlet end of a main water return pipe (14) is connected with one input end of the fourth three-way valve, the other end of the main water outlet pipe (13) is distributed and extended along a building body room, a plurality of water outlet branches are arranged on the main water outlet pipe (13), each water outlet branch is connected with the water outlet end of a fan coil in a corresponding air disc system (12), the other end of the main water return pipe (14) is distributed and extended along the building body room, a plurality of water return branches are arranged on the main water return pipe (14), and each water return branch is connected with the water return end of a fan coil in the corresponding air disc system (12).
3. The use method of the liquid refrigerant circulating device for utilizing ice and snow cold in a cross-season mode according to any one of claims 1 to 2 is characterized in that: the method is realized by the following steps:
the method comprises the following steps: arranging the snow melting cellar (1): excavating an underground space near a building body, arranging a snow melting cellar (1) wrapped with a reinforced concrete layer and insulated in the excavated underground space, ensuring that a snow inlet of the snow melting cellar (1) is parallel to and communicated with the ground, and using the snow melting cellar (1) for storing accumulated snow in winter;
step two: arranging a heat exchange system: arranging a cold water coil pipe (4) at the bottom of the snow melting cellar (1), simultaneously connecting a water inlet pipe (5) with a water inlet of the cold water coil pipe (4), connecting a water return pipe (6) with a water return port of the cold water coil pipe (4), arranging a support at the joint of the water inlet pipe (5) and the water return pipe (6) with the snow melting cellar (1), and arranging a heat insulation layer between the support and the water inlet pipe (5) or the water return pipe (6);
step three: the heat exchange system is connected with the air conditioning system and is used for transferring the cold energy stored in the accumulated snow to the air conditioning system and sharing the working energy consumption of a refrigerating unit (17) in the air conditioning system;
step four: the air conditioning system performs cold-heat conversion on hot air entering the air conditioning system by using cold energy transferred by the heat exchange system, and discharges the air cooled by the cold energy into each room of a building body for reducing the temperature in the room.
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