CN109707434B - Portable mine local cooling dehydrating unit - Google Patents
Portable mine local cooling dehydrating unit Download PDFInfo
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- CN109707434B CN109707434B CN201910023294.2A CN201910023294A CN109707434B CN 109707434 B CN109707434 B CN 109707434B CN 201910023294 A CN201910023294 A CN 201910023294A CN 109707434 B CN109707434 B CN 109707434B
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Abstract
The invention discloses a movable mine local cooling and dehumidifying device, which comprises a movable support and a cooling and dehumidifying system, wherein the cooling and dehumidifying system comprises a local ventilator, a gas filter, a dehumidifier, a liquid storage tank, a submersible pump, a main cooling pipeline, a main reflux pipeline, a foam metal plate and an injection type heat pipe, the local ventilator is connected with the dehumidifier through a wind barrel, the gas filter is arranged on the wind barrel, and the local ventilator, the wind barrel, the gas filter and the dehumidifier jointly form the mine dehumidifying system; the immersible pump sets up in the liquid reserve tank, and foam metal plate installs on mine country rock tunnel inner wall, and injection formula heat pipe all inserts and establishes in foam metal plate, and liquid reserve tank, immersible pump, main cooling pipeline, main return line, branch cooling pipeline, branch return line, foam metal plate, injection formula heat pipe and dehumidifier form mine cooling system jointly. The invention effectively improves the local temperature and humidity of the working face of the mine, improves the production efficiency of the mine, and has simple structure and small occupied area.
Description
Technical Field
The invention belongs to the technical field of temperature and humidity regulation of surrounding rocks of deep well tunnels, and particularly relates to a movable mine local cooling and dehumidifying device.
Background
Along with the deep well operation of coal in China, mine high-temperature heat injury becomes a great difficulty threatening the safe production of the coal. There are many problems in the current mine cooling systems: (1) The high-power refrigerator improves the refrigerating capacity, but the refrigerating capacity loss is heavier in the long-distance underground conveying process; (2) The dry and cold air blown to the working surface can be mixed with the original air to heat and humidify the working surface along with the forward pushing of the working surface, the situation can be more serious along with the pushing of the working surface, and the cooling efficiency is greatly reduced; (3) The existing cooling and dehumidifying system is complex in structure, large in equipment occupation area and difficult to arrange; (4) The existing mine cooling device is difficult to flexibly move along with the mining depth of a mine. Therefore, it is necessary to design a movable device capable of effectively solving the problem of local cooling and dehumidification of the mine working face.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the movable mine local cooling and dehumidifying device which effectively improves the local temperature and humidity of a mine working surface and improves the production efficiency of a coal mine; and the structure is simple, the mobile device can move flexibly, and the occupied area is small.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a portable mine local cooling dehydrating unit which characterized in that: the cooling and dehumidifying system comprises a local ventilator, a gas filter, a dehumidifier, a liquid storage tank, a submersible pump, a main cooling pipeline, a main reflux pipeline, a foam metal plate and a jet type heat pipe, wherein an air outlet of the local ventilator is connected with an air inlet of the dehumidifier through an air duct, the gas filter is arranged on the air duct, and the local ventilator, the air duct, the gas filter and the dehumidifier jointly form a mine dehumidifying system; the utility model provides a mine cooling system, including main cooling pipeline, dehumidifier, ejector, foam metal plate, main return pipeline, ejector heat pipe, the top that all sets up at the movable support of local ventilation blower, gas filter, dehumidifier and liquid reserve tank, the immersible pump sets up in the liquid reserve tank, foam metal plate fixed mounting is on the inner wall in mine country rock tunnel, the quantity of ejector heat pipe is a plurality of the injection heat pipe is all inserted and is fixed in foam metal plate, the delivery port and the entrance linkage of main cooling pipeline of immersible pump, the export of main cooling pipeline is through the entrance linkage of branch cooling pipeline with the ejector heat pipe, the export of ejector heat pipe is through the entrance linkage of branch return pipeline with main return pipeline, the export and the water inlet of dehumidifier are connected, the delivery port and the lower part intercommunication of liquid reserve tank, immersible pump, main cooling pipeline, main return pipeline, branch cooling pipeline, foam metal plate, ejector heat pipe and dehumidifier form mine cooling system jointly.
Foretell a portable mine local cooling dehydrating unit, its characterized in that: the jet type heat pipe comprises an outer pipe body, an inner pipe body, a heat pipe top disc, a nozzle, a isolating plug, an input hose and an output hose, wherein one end of the outer pipe body is open, the other end of the outer pipe body is closed, the inner pipe body is of a hollow structure with two ends open, the inner pipe body is arranged in the outer pipe body along the length direction, a distance is reserved between the outer wall of the inner pipe body and the inner wall of the outer pipe body, the heat pipe top disc is arranged in the closed end of the outer pipe body, a distance is reserved between the inner end of the inner pipe body and the heat pipe top disc, the nozzle is arranged in the inner end of the inner pipe body, the isolating plug is fixed, a heat exchange cavity is formed among the outer pipe body, the inner pipe body, the heat pipe top disc and the isolating plug, one end of the input hose penetrates into the isolating plug and is communicated with the heat exchange cavity, one end of the output hose penetrates into the isolating plug and is communicated with the reflux cavity, the other end of the input hose is communicated with a return pipeline, and the other end of the output hose is communicated with the return pipeline.
Foretell a portable mine local cooling dehydrating unit, its characterized in that: the nozzle consists of a convergent section, an equal-diameter section and a divergent section, wherein the convergent section, the equal-diameter section and the divergent section are sequentially arranged from an inlet to an outlet of the nozzle and are communicated with each other; the backflow cavity consists of a convergent cavity, an equal-diameter cavity and a divergent cavity, and the convergent cavity, the equal-diameter cavity and the divergent cavity are sequentially arranged from the inlet to the outlet of the backflow cavity and are communicated with each other.
Foretell a portable mine local cooling dehydrating unit, its characterized in that: the central axis of heat exchange cavity and the central axis of backward flow chamber are located same straight line, outer body and interior body are the heat insulation pipe, the heat pipe top tray is the heat insulation top tray, the blind end outside of outer body is provided with the bolt layer board that is used for fixing jet type heat pipe in the foam metal sheet.
Foretell a portable mine local cooling dehydrating unit, its characterized in that: the number of the jet type heat pipes is 21, the 21 jet type heat pipes are distributed in three rows, and 7 jet type heat pipes are uniformly distributed in each row.
Foretell a portable mine local cooling dehydrating unit, its characterized in that: and a liquid concentration sensor, a thermometer, a flow regulating valve and a pressure gauge are sequentially arranged on the main cold supply pipeline from the submerged pump to the branch cold supply pipeline.
Foretell a portable mine local cooling dehydrating unit, its characterized in that: a liquid level observation meter is arranged in the liquid storage tank.
Foretell a portable mine local cooling dehydrating unit, its characterized in that: and the inner wall and the lower bottom surface of the foam metal plate are respectively provided with a heat-insulating coating.
Foretell a portable mine local cooling dehydrating unit, its characterized in that: the foam metal plate is fixedly arranged on the inner wall of the mine surrounding rock roadway through a plurality of expansion bolts.
Foretell a portable mine local cooling dehydrating unit, its characterized in that: the foam metal plate is matched with the shape of the inner wall of the mine surrounding rock roadway.
Compared with the prior art, the invention has the following advantages:
1. the existing coal mine cooling system generally adopts a local fan to draft air and cool the air through an air cooler, adopts an air drum to transport air, is generally placed in a large roadway because of the large volume of the air cooler, and the air flow reaches a working surface after being processed by the air cooler, so that the air inside and outside the air drum transfers heat, the cooling capacity loss is serious, and the air temperature of the cold air flow reaching the working surface is about 4 degrees lower than that of the large roadway. The cooling and dehumidifying device adopts the jet type heat pipe for refrigeration, and the jet type heat pipe has small volume and can be arranged near a working surface, thereby saving a great amount of cold energy loss and having cheaper price than an air cooler.
2. The cooling and dehumidifying device reduces the cold energy loss and the suction of the moisture, the advantage makes up the defect of lower heat exchange efficiency of the existing device, and the dehumidifier is added in the cooling and dehumidifying device, so that the cooling and dehumidifying effect is more obvious.
3. At present, the whole working face needs to be cooled and dehumidified, and the cooling capacity is too large to realize. The invention has the starting point that the cooling and dehumidifying device is used for cooling and dehumidifying the working surface in the artificial area, and the working environment in the activity of workers is ensured firstly, and the cooling and dehumidifying system can be followed along with the forward pushing of the coal face, so that the temperature and humidity in a certain area are ensured. The cooling and dehumidifying method is feasible from the perception of human body to the field environment, has practical application value and can effectively improve the temperature and humidity of the coal face.
4. The movable cooling and dehumidifying device only cools and dehumidifies air in a small range, can greatly reduce energy consumption, and avoids the problems of large energy consumption, unobvious edge cooling and dehumidifying effect and overlong cold air conveying distance of fixed cooling and dehumidifying equipment.
5. The invention mainly utilizes the heat exchange refrigeration of the jet heat pipe and the water absorption and dehumidification of lithium bromide solution in the dehumidifier to operate, and can improve the local hot and humid environment of the working face of the mine along with the exploitation and movement of the mine tunnel.
The invention is described in further detail below with reference to the drawings and examples.
Drawings
Fig. 1 is a state diagram of the present invention when installed in a mine surrounding rock roadway.
FIG. 2 is a schematic diagram of a spray heat pipe according to the present invention.
FIG. 3 is a schematic view of the installation relationship of the inner tubular body and the nozzle of the present invention.
FIG. 4 is a schematic diagram of the connection relationship between the main cooling pipeline, the main return pipeline, the branch cooling pipeline, the branch return pipeline and the plurality of jet heat pipes according to the present invention.
FIG. 5 is a schematic diagram of the connection relationship between a row of 7 spray heat pipes and an input hose, an output hose, a branch cooling pipe and a branch return pipe according to the present invention.
Fig. 6 is an enlarged view at a of fig. 1.
Reference numerals illustrate:
1-a foam metal plate; 2-jet heat pipe; 2-1 to an outer tube body;
2-an inner tube; 2-3-heat pipe top plate; 3-a main cooling pipeline;
4-a main return line; 5-branch cooling pipeline; 6, a return pipeline;
7-a bolt supporting plate; 8-isolating plug; 9-an input hose;
10-an output hose; 11-a liquid storage tank; 12-dehumidifier;
13-a gas filter; 14-a submersible pump; 15-a local ventilator;
16-moving the support base; 17-expansion bolts; 18-a liquid concentration sensor;
19—thermometer; 20-a flow regulating valve; 21-a pressure gauge;
22-a liquid level gauge; 23-a heat exchange cavity; 24-a reflux chamber;
24-1-tapering cavity; 24-2-constant diameter cavity; 24-3-diverging chamber;
25-wind cylinder; 26-mine surrounding rock roadway; 27-a thermal barrier coating;
28-nozzle; 28-1-a tapered section; 28-2-equal diameter sections;
28-3-divergent section.
Detailed Description
As shown in fig. 1, the invention comprises a movable support 16 and a cooling and dehumidifying system arranged on the movable support 16, wherein the cooling and dehumidifying system comprises a local ventilator 15, a gas filter 13, a dehumidifier 12, a liquid storage tank 11, a submersible pump 14, a main cooling pipeline 3, a main reflux pipeline 4, a foam metal plate 1 and a jet type heat pipe 2, an air outlet of the local ventilator 15 is connected with an air inlet of the dehumidifier 12 through an air duct 25, the gas filter 13 is arranged on the air duct 25, and the local ventilator 15, the air duct 25, the gas filter 13 and the dehumidifier 12 jointly form a mine dehumidifying system; the air conditioning system is characterized in that the local ventilator 15, the air filter 13, the dehumidifier 12 and the liquid storage tank 11 are all arranged at the top of the movable support bottom 16, the submerged pump 14 is arranged in the liquid storage tank 11, the foam metal plate 1 is fixedly arranged on the inner wall of the mine surrounding rock roadway 26, the number of the jet type heat pipes 2 is multiple, the jet type heat pipes 2 are all inserted and fixed in the foam metal plate 1, the water outlet of the submerged pump 14 is connected with the inlet of the main cooling pipeline 3, the outlet of the main cooling pipeline 3 is connected with the inlet of the jet type heat pipe 2 through the branch cooling pipeline 5, the outlet of the jet type heat pipe 2 is connected with the inlet of the main reflux pipeline 4 through the branch reflux pipeline 6, the outlet of the main reflux pipeline 4 is connected with the water inlet of the dehumidifier 12, the water outlet of the dehumidifier 12 is communicated with the lower part of the liquid storage tank 11, and the liquid storage tanks 11, 14, the main cooling pipeline 3, the main reflux pipeline 4, the branch cooling pipeline 5, the branch reflux pipeline 6 and the foam metal plate 1, the jet type heat pipes 2 and the dehumidifier 12 jointly form a cooling system.
The local ventilator 15, the air duct 25, the gas filter 13 and the dehumidifier 12 together form a mine dehumidification system for dehumidifying the mine surrounding rock roadway. The heat exchange medium contained in the liquid storage tank 11 is low-temperature lithium bromide solution, and the low-temperature lithium bromide solution is circulated in the heat exchange loop and continuously exchanges heat and humidity with a mine surrounding rock roadway.
As shown in fig. 2, the spray type heat pipe 2 comprises an outer pipe body 2-1, an inner pipe body 2-2, a heat pipe top plate 2-3, a nozzle 28, a isolating plug 8, an input hose 9 and an output hose 10, wherein one end of the outer pipe body 2-1 is open, the other end is closed, the inner pipe body 2-2 is a hollow structure with both ends open, the inner pipe body 2-2 is arranged in the outer pipe body 2-1 along the length direction, a distance is reserved between the outer wall of the inner pipe body 2-2 and the inner wall of the outer pipe body 2-1, the heat pipe top plate 2-3 is arranged in the closed end of the outer pipe body 2-1, a distance is reserved between the inner end of the inner pipe body 2-2 and the heat pipe top plate 2-3, the nozzle 28 is arranged inside the inner end of the inner pipe body 2-2, the isolating plug 8 is arranged at the pipe orifice of the outer pipe body 2-1 and is used for fixing the inner pipe body 2-2, a heat exchange cavity 23 is formed among the outer pipe body 2-1, the inner pipe body 2-2, the heat pipe top disc 2-3 and the isolating plug 8, a backflow cavity 24 is formed among the inner pipe body 2-2, the nozzle 28 and the isolating plug 8, one end of the input hose 9 penetrates into the isolating plug 8 and is communicated with the heat exchange cavity 23, one end of the output hose 10 penetrates into the isolating plug 8 and is communicated with the backflow cavity 24, the other end of the input hose 9 is communicated with the branch cooling pipeline 5, and the other end of the output hose 10 is communicated with the backflow pipeline 6.
Wherein, the main cooling pipeline 3 and the main return pipeline 4 are heat-insulating pipelines, and the branch cooling pipeline 5, the branch return pipeline 6, the input hose 9 and the output hose 10 are heat-insulating hoses. The completion of the outer tubular body 2-1 is 20mm, the outer diameter of the heat exchange cavity 23 is 16mm, the inner diameter is 13mm, the maximum diameter of the reflux cavity 24 is 11mm, the minimum diameter is 6mm, and the length is 150mm. The diameter of the isolating plug 8 is 16mm, the thickness is 4mm, the inner diameter of the input hose 9 and the output hose 10 are 2mm, and the outer diameter is 3mm. The foam metal sheet 1 is made of a foam aluminum material having a porosity of 30PPI.
As shown in fig. 3, the nozzle 28 is composed of a convergent section 28-1, a constant diameter section 28-2 and a divergent section 28-3, wherein the convergent section 28-1, the constant diameter section 28-2 and the divergent section 28-3 are sequentially arranged from an inlet to an outlet of the nozzle 28 and are communicated with each other; the backflow cavity 24 is composed of a convergent cavity 24-1, a constant diameter cavity 24-2 and a divergent cavity 24-3, and the convergent cavity 24-1, the constant diameter cavity 24-2 and the divergent cavity 24-3 are sequentially arranged from an inlet to an outlet of the backflow cavity 24 and are communicated with each other.
The central axis of the heat exchange cavity 23 and the central axis of the backflow cavity 24 are positioned on the same straight line, the outer pipe body 2-1 and the inner pipe body 2-2 are heat insulation pipes, the heat pipe top plate 2-3 is a heat insulation top plate, and a bolt supporting plate 7 for fixing the jet type heat pipe 2 in the foam metal plate 1 is arranged outside the closed end of the outer pipe body 2-1.
The jet type heat pipe 2 is fixed in the foam metal plate 1 by means of the bolt supporting plate 7, the isolating plug 8 is embedded in the outer pipe body 2-1, the heat exchange medium of the heat exchange cavity 23 at the tail of the heat pipe and the heat exchange medium of the backflow cavity 24 can be prevented from penetrating each other, and the effect of fixing the jet type heat pipe 2 is achieved. The isolating plug 8 seals the ejector heat pipe 2 from each other with the input hose 9 and the output hose 10, the input hose 9 is inserted into the isolating plug 8 to communicate with the heat exchange chamber 23, and the output hose 10 is inserted into the isolating plug 8 to communicate with the return chamber 24.
As shown in fig. 4 and 5, in order to ensure the flow rate of the heat exchange medium in the ejector heat pipe 2, and also to consider the heat exchange effect and convenience of the ejector heat pipe 2 in the actual use process, three rows of ejector heat pipes 2 are provided, and each 7 rows of ejector heat pipes 2 are uniformly inserted into the foam metal plate 1, that is, the number of the ejector heat pipes 2 is 21, 21 ejector heat pipes 2 are distributed in three rows, and each row of ejector heat pipes 2 is uniformly distributed with 7 ejector heat pipes 2.
As shown in fig. 1, a liquid concentration sensor 18, a thermometer 19, a flow rate regulating valve 20 and a pressure gauge 21 are sequentially installed on the main cooling pipeline 3 from the submerged pump 14 to the branch cooling pipeline 5, and a liquid level observation meter 22 is arranged in the liquid storage tank 11. The lithium bromide solution is circulated and regulated in time by the liquid concentration sensor 18 and the liquid level gauge 22.
As shown in fig. 6, the inner wall and the lower bottom surface of the foam metal plate 1 are provided with a heat-insulating coating 27 to ensure that heat is not dissipated, and only exchanges heat through the jet heat pipe 2.
As shown in fig. 1, the foam metal plate 1 is fixedly mounted on the inner wall of a mine surrounding rock roadway 26 by a plurality of expansion bolts 17.
In this embodiment, the foam metal plate 1 is in shape matching with the inner wall of the mine surrounding rock roadway 26.
The working principle of the invention is as follows: the air is sucked by the local ventilator 15 and enters the gas filter 13 to remove impurities, then the air flow enters the dehumidifier 12, the concentrated lithium bromide solution in the dehumidifier 12 absorbs water and exchanges heat with the water, and the treated air reaches the working surface of the surrounding rock roadway of the mine. The dehumidifier 12 utilizes the principle of water absorption of lithium bromide solution, when the lithium bromide solution passes through the dehumidifier 12, the lithium bromide solution is in direct contact with air, and a pressure difference exists between the water vapor pressure of the surface of the lithium bromide solution and the water vapor partial pressure of the air, so that the water is driven to be transferred between the air and the hygroscopic solution, and the air humidity treatment process is completed.
The low-temperature lithium bromide solution is pumped by the submerged pump 14 and enters the heat exchange cavity 23 of the jet heat pipe 2, the low-temperature lithium bromide solution absorbs heat of a mine surrounding rock roadway to generate high-pressure steam, the high-pressure steam enters the nozzle 28 at a low flow rate, passes through the convergent section 28-1 of the nozzle 28, is reduced in pressure and increased in speed, and in the divergent section 28-3 of the nozzle 28, the pressure is further reduced, the speed is continuously increased, and the jet heat pipe 2 plays a role in accelerating heat exchange by means of heat absorption and refrigeration through evaporation of the low-temperature lithium bromide solution working medium. The heat exchange cavity 23 exchanges heat with the foam metal plate 1 fully and then flows back to the backflow cavity 24, and then enters the branch backflow pipeline 6 through the output hose 10.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent structural transformation of the above embodiment according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a portable mine local cooling dehydrating unit which characterized in that: the cooling and dehumidifying system comprises a movable support base (16) and a cooling and dehumidifying system arranged on the movable support base (16), wherein the cooling and dehumidifying system comprises a local ventilator (15), a gas filter (13), a dehumidifier (12), a liquid storage tank (11), a submersible pump (14), a main cooling pipeline (3), a main backflow pipeline (4), a foam metal plate (1) and a jet type heat pipe (2), an air outlet of the local ventilator (15) is connected with an air inlet of the dehumidifier (12) through an air duct (25), the gas filter (13) is arranged on the air duct (25), and the local ventilator (15), the air duct (25), the gas filter (13) and the dehumidifier (12) jointly form the mine dehumidifying system; local ventilation blower (15), gas filter (13), dehumidifier (12) and liquid reserve tank (11) all set up at the top of removing to hold in palm end (16), immersible pump (14) set up in liquid reserve tank (11), foam metal sheet (1) fixed mounting is on the inner wall of mine country rock tunnel (26), the quantity of injection formula heat pipe (2) is a plurality of, a plurality of injection formula heat pipe (2) are all inserted and are fixed in foam metal sheet (1), the delivery port of immersible pump (14) and the inlet connection of main cooling pipeline (3), the export of main cooling pipeline (3) is through branch cooling pipeline (5) and the inlet connection of injection formula heat pipe (2), the export of injection formula heat pipe (2) is through branch return pipeline (6) and the inlet connection of main return pipeline (4), the export of main return pipeline (4) is connected with the water inlet of dehumidifier (12), the delivery port of dehumidifier (12) communicates with the lower part of liquid reserve tank (11), the sub-tank (11), immersible pump (4), main cooling pipeline (1), main cooling pipeline (4), main cooling pipeline (1), branch return pipeline (4) The jet type heat pipe (2) and the dehumidifier (12) form a mine cooling system together;
the jet type heat pipe (2) comprises an outer pipe body (2-1), an inner pipe body (2-2), a heat pipe top disc (2-3), a nozzle (28), a separation plug (8), an input hose (9) and an output hose (10), one end opening and the other end of the outer pipe body (2-1) are closed, the inner pipe body (2-2) is of a hollow structure with two open ends, the inner pipe body (2-2) is arranged inside the outer pipe body (2-1) along the length direction, a distance is reserved between the outer wall of the inner pipe body (2-2) and the inner wall of the outer pipe body (2-1), the heat pipe top disc (2-3) is arranged inside the closed end of the outer pipe body (2-1), a distance is reserved between the inner end of the inner pipe body (2-2) and the heat pipe top disc (2-3), the nozzle (28) is arranged inside the inner end of the inner pipe body (2-2), the separation plug (8) is arranged at the pipe opening of the inner pipe body (2-1) and fixes the inner pipe body (2-2) and the heat pipe top disc (2-1), the heat pipe top disc (2-3) and the heat exchange cavity (2-3) are formed between the heat pipe top disc (2-3) A reflux cavity (24) is formed between the nozzle (28) and the isolation plug (8), one end of the input hose (9) penetrates into the isolation plug (8) and is communicated with the heat exchange cavity (23), one end of the output hose (10) penetrates into the isolation plug (8) and is communicated with the reflux cavity (24), the other end of the input hose (9) is communicated with the branch cooling pipeline (5), and the other end of the output hose (10) is communicated with the branch reflux pipeline (6);
the nozzle (28) consists of a convergent section (28-1), an equal-diameter section (28-2) and a divergent section (28-3), wherein the convergent section (28-1), the equal-diameter section (28-2) and the divergent section (28-3) are sequentially arranged from an inlet to an outlet of the nozzle (28) and are internally communicated; the backflow cavity (24) consists of a gradually-reduced cavity (24-1), an equal-diameter cavity (24-2) and a gradually-enlarged cavity (24-3), and the gradually-reduced cavity (24-1), the equal-diameter cavity (24-2) and the gradually-enlarged cavity (24-3) are sequentially arranged from an inlet to an outlet of the backflow cavity (24) and are internally communicated;
the heat exchange device is characterized in that the central axis of the heat exchange cavity (23) and the central axis of the backflow cavity (24) are positioned on the same straight line, the outer pipe body (2-1) and the inner pipe body (2-2) are heat insulation pipes, the heat pipe top plate (2-3) is a heat insulation top plate, and a bolt supporting plate (7) used for fixing the jet type heat pipe (2) in the foam metal plate (1) is arranged on the outer side of the closed end of the outer pipe body (2-1).
2. A portable mine local cooling and dehumidifying device as claimed in claim 1, wherein: the number of the jet type heat pipes (2) is 21, the 21 jet type heat pipes (2) are distributed in three rows, and 7 jet type heat pipes (2) are uniformly distributed in each row.
3. A portable mine local cooling and dehumidifying device as claimed in claim 1, wherein: a liquid concentration sensor (18), a thermometer (19), a flow regulating valve (20) and a pressure gauge (21) are sequentially arranged on the main cooling pipeline (3) from the submerged pump (14) to the supporting cooling pipeline (5).
4. A portable mine local cooling and dehumidifying device as claimed in claim 1, wherein: a liquid level observation meter (22) is arranged in the liquid storage tank (11).
5. A portable mine local cooling and dehumidifying device as claimed in claim 1, wherein: the inner wall and the lower bottom surface of the foam metal plate (1) are provided with heat-insulating coatings (27).
6. A portable mine local cooling and dehumidifying device as claimed in claim 1, wherein: the foam metal plate (1) is fixedly arranged on the inner wall of a mine surrounding rock roadway (26) through a plurality of expansion bolts (17).
7. A portable mine local cooling and dehumidifying device as claimed in claim 1, wherein: the foam metal plate (1) is matched with the inner wall of the mine surrounding rock roadway (26).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910023294.2A CN109707434B (en) | 2019-01-10 | 2019-01-10 | Portable mine local cooling dehydrating unit |
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| CN201910023294.2A CN109707434B (en) | 2019-01-10 | 2019-01-10 | Portable mine local cooling dehydrating unit |
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| CN109707434A CN109707434A (en) | 2019-05-03 |
| CN109707434B true CN109707434B (en) | 2024-02-20 |
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| CN110905581B (en) * | 2019-12-13 | 2021-06-15 | 湖南工程学院 | Movable type excavation roadway cooling equipment |
| CN112343644A (en) * | 2020-11-27 | 2021-02-09 | 北京中矿赛力贝特节能科技有限公司 | Mine radiation cooling system and method |
| CN115250766B (en) * | 2022-08-25 | 2023-10-24 | 中央储备粮海口直属库有限公司 | Local closed multifunctional grain depot cage inner ventilation trolley and method based on ground cage |
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