Energy-saving and water-saving demister for cooler of mine cooling unit

Abstract

The utility model relates to the technical field of mine cooling units, in particular to an energy-saving and water-saving demister of a cooler of a mine cooling unit. According to the technical scheme, the device comprises a cooler and a local fan, and further comprises a dehydration demister connected with one end of the cooler through a connecting pipeline, the other end of the dehydration demister is connected with an air inlet of the local fan, and the dehydration demister removes water vapor passing through the cooler. According to the utility model, the local fan is arranged behind the cooler, so that the condensation heat extraction is optimized, the water mist removal function is realized by virtue of the dehydration demister additionally arranged between the local fan and the cooler, and the damage of the water mist to the performance of the local fan and the shortening of the service life are effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of mine cooling units, in particular to an energy-saving and water-saving demister for a cooler of a mine cooling unit. Background Technique

[0002] As the cornerstone supporting the development of China's industry and economic prosperity, mine exploitation continuously supports the country's modernization drive. Therefore, the healthy development of the mining industry is extremely important. During the process of mine exploitation, due to the coupling effect of various heat sources underground, the temperature in the mine is too high. The high-temperature environment not only affects the working efficiency of miners but also poses a serious threat to their physical health. To ensure the physical health of miners and improve the operation efficiency, it is particularly urgent and necessary to carry out effective cooling treatment for the mine.

[0003] At present, the cooling of mines is divided into two categories: non-artificial refrigeration cooling and artificial refrigeration cooling. Among them, the non-artificial refrigeration cooling technology is a ventilation control-based cooling technology mostly used in shallow mine exploitation with less serious heat damage. As the mine exploitation extends to deeper parts, the heat damage gradually becomes serious. The non-artificial refrigeration cooling technology cannot effectively meet the environmental cooling requirements, and artificial refrigeration cooling technology needs to be used for underground cooling, that is, arranging refrigeration equipment to cool the mine. The technical key of artificial refrigeration cooling technology is refrigeration, cold transmission, heat transfer, and heat rejection. That is, the refrigeration unit refrigerates; the heat preservation pipeline transmits cold; the air cooler transfers heat; and for removing the condensation heat of the refrigeration unit, when the refrigeration unit is installed on the ground, a cooling tower can be used for heat rejection, and when the refrigeration unit is installed underground, the underground return air flow is generally used for heat rejection, and among them, using a cooler to remove the condensation heat is widely used.

[0004] Currently, the coolers of current mine local cooling units all adopt compressed air installation, that is, installing a cooler at the outlet of the fan, so that the high-speed air flow directly blows into the condenser of the mine local cooling unit for heat rejection with the cooler. A spray pipe is configured in the cooler. The high-speed air flow quickly blows through the heat exchange coil of the cooler, and the heat of the fluid in the coil is taken away through the evaporation heat exchange and convective heat exchange of the spray water on the surface of the cooler coil to realize the cooling of the cooling water and remove the condensation heat of the unit. Since a large amount of water droplets are carried by the high-speed air flow and blown out of the cooler, in order to prevent the water droplets from damaging the local fan, the fan has to be arranged in front of the cooler. In the current compressed air type design of the cooler of the mine local cooling unit, the heat generation of the local fan motor increases the heat exchange load of the cooler, resulting in an increase in the temperature of the cooling air, a reduction in the heat transfer temperature difference, and an impact on the heat exchange efficiency. In addition, a large amount of the water mist sprayed out by the cooler is carried away by the air flow, thus wasting water resources. Content of the Utility Model

[0005] The purpose of the utility model is to propose an energy-saving and water-saving demister for a cooler of a mine cooling unit aiming at the problems existing in the background technique.

[0006] Technical solution of the utility model: An energy-saving and water-saving demister for the cooler of a mine cooling unit, including a cooler and a local fan, further including:

[0007] A dehydration demister connected to one end of the cooler through a connecting pipe, the other end of the dehydration demister is connected to the air inlet of the local fan, and the dehydration demister removes the water vapor passing through the cooler;

[0008] A water collecting tank connected to the dehydration demister, the water collecting tank collects the water in the dehydration demister, the water collecting tank includes a first sedimentation tank, a second sedimentation tank and a water storage tank, a valve system is installed in the water collecting tank, the valve system controls the water in the dehydration demister to enter the first sedimentation tank or the second sedimentation tank, and controls the communication state between the first sedimentation tank, the second sedimentation tank and the water storage tank. Removable sedimentation plates are installed in both the first sedimentation tank and the second sedimentation tank. Drainage auxiliary plates are installed above the sedimentation plates in both the first sedimentation tank and the second sedimentation tank. A plurality of flow channels are provided on the drainage auxiliary plates. Blocking mechanisms for blocking the flow channels are installed in both the first sedimentation tank and the second sedimentation tank.

[0009] Optionally, the dehydration demister includes a box body, an air inlet air distribution diffuser fixedly installed at one end of the box body, and an air outlet air distribution diffuser fixedly installed at the other end of the box body. An efficient demisting water baffle is fixedly installed in the middle of the box body.

[0010] Optionally, a detachable inspection opening is installed at the top of the box body, a plurality of support feet are fixedly installed at the bottom of the box body, and a drain pipe is fixedly installed on the box body.

[0011] Optionally, diversion plates are fixedly installed in both the first sedimentation tank and the second sedimentation tank. A plurality of nozzles are fixedly installed on the diversion plates. A water delivery pipe is fixedly installed on the diversion plates. A diversion pipe is fixedly installed on the two water delivery pipes. The drain pipe is communicated with the diversion pipe.

[0012] Optionally, the valve system includes a first electric control valve installed in the water delivery pipe. Through holes are provided between the first sedimentation tank, the second sedimentation tank and the water storage tank. Second electric control valves are installed in the through holes. A controller is installed on the water collecting tank. The controller is electrically connected to the first electric control valve and the second electric control valve. The controller controls the opening and closing states of the first electric control valve and the second electric control valve.

[0013] Optionally, the drainage auxiliary plate includes a plurality of baffles fixedly installed in the first sedimentation tank and the second sedimentation tank. A gap is provided between two adjacent baffles. A plurality of sealing plates are slidably installed in the first sedimentation tank and the second sedimentation tank. The sealing plates are located in the gaps between two adjacent baffles.

[0014] Optionally, the plugging mechanism includes a driving rod slidably installed in the first sedimentation tank and the second sedimentation tank. A plurality of connecting rods are rotatably installed on the driving rod. The connecting rods are respectively and rotatably connected to the sealing plates. One end of the driving rod is fixedly installed with a transmission rod. The transmission rod penetrates through one side of the water collecting tank and extends to the outside of the water collecting tank. Two internal threaded rods are rotatably installed on the water collecting tank. The internal threaded rods correspond to the transmission rods one by one. One end of the transmission rod is provided with threads and is threadedly connected to the internal threaded rod.

[0015] Optionally, support rods are fixedly installed in the first sedimentation tank and the second sedimentation tank. A sliding groove is provided in the driving rod. The support rods are slidably connected to the sliding groove.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] By placing the local fan behind the cooler, the condensation heat dissipation is optimized, and with the dehydration and demisting device installed between the local fan and the cooler, the function of water mist removal is realized, effectively preventing the damage to the performance of the local fan and the shortening of its service life caused by water mist.

[0018] Further, the water from the drain pipe will first enter the first sedimentation tank or the second sedimentation tank. The water after sedimentation will enter the water storage tank, protecting the cleanliness of the water inside the water storage tank. And the spray water pump is located in the water storage tank, which can prevent spraying the water containing dust onto the cooler, preventing the reduction of the direct contact area between the cooler and water and the decline of the cooling performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The structural diagram of the dehydration and demisting device of the present utility model is given;

[0020] Figure 2 For Figure 1 the view from A in

[0021] Figure 3 The front side three-dimensional view of the dehydration and demisting device of the present utility model is given;

[0022] Figure 4 The rear side three-dimensional view of the dehydration and demisting device of the present utility model is given;

[0023] Figure 5 It is the installation diagram of the cooler equipment of the mine local cooling unit;

[0024] Figure 6 The structural schematic diagram of the water collecting tank of the present utility model is given;

[0025] Figure 7 The structural schematic diagram inside the water collecting tank of the present utility model is given;

[0026] Figure 8Schematic diagram of the positions of the first sedimentation tank and the second sedimentation tank;

[0027] Figure 9 Schematic diagram of the structures of the first electric control valve and the second electric control valve is given;

[0028] Figure 10 It is Figure 7 Partial enlarged view of the position A in

[0029] Figure 11 It is Figure 7 Partial enlarged view of the position B in

[0030] Reference numerals: 1, air inlet equalizing diffuser; 2, box body; 3, inspection opening; 4, high-efficiency demisting water baffle; 5, air outlet equalizing diffuser; 6, drain pipe; 7, support feet; 8, cooler; 9, connecting pipe; 10, dehydration and demisting device; 11, local fan; 12, water collecting tank; 13, box cover; 14, first sedimentation tank; 15, second sedimentation tank; 16, water storage tank; 17, shunt plate; 18, spray head; 19, water delivery pipe; 20, shunt pipe; 21, first electric control valve; 22, second electric control valve; 23, railing; 24, sealing plate; 25, driving rod; 26, connecting rod; 27, transmission rod; 28, internal threaded rod; 29, support rod; 30, sedimentation plate. Detailed implementation manners

[0031] The technical solutions of the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0032] Embodiment

[0033] As Figures 1-5As shown in the figure, an energy-saving and water-saving demister for the cooler of a mine cooling unit proposed by the utility model includes a cooler 8 and a local fan 11, and also includes a dehydration demister 10 connected to one end of the cooler 8 through a connecting pipe 9. The other end of the dehydration demister 10 is connected to the air inlet of the local fan 11. The dehydration demister 10 removes the water vapor passing through the cooler 8. The dehydration demister 10 includes a box body 2, an air inlet equalizing diffuser 1 fixedly installed at one end of the box body 2, and an air outlet equalizing diffuser 5 fixedly installed at the other end of the box body 2. A high-efficiency demisting water baffle 4 is fixedly installed in the middle of the box body 2. Under the action of the negative pressure of the local fan 11, the high-speed air flow passes through the cooler 8 with spraying and becomes an air flow with high temperature and carrying a large amount of water droplets. This air flow enters the box body 2. Under the action of the air inlet equalizing diffuser 1, the air flow with high temperature and carrying a large amount of water droplets is evenly distributed and passes through the high-efficiency demisting water baffle 4. Under the action of the high-efficiency demisting water baffle 4, the water mist in the air flow is removed and evenly discharged through the air outlet equalizing diffuser 5. The water mist intercepted by the high-efficiency demisting water baffle 4 converges into water droplets under the action of gravity and falls on the bottom plate of the box body 2. A detachable maintenance opening 3 is installed at the top of the box body 2, and a plurality of support feet 7 are fixedly installed at the bottom of the box body 2. A drain pipe 6 is fixedly installed on the box body 2. The removed water is drained away through the drain pipe 6 at the bottom of the box body 2.

[0034] Furthermore, considering the narrow space of the mine roadway, in order to facilitate the installation of the cooler 8 and effectively recover the water removed by demisting, the box body 2 adopts a design method with a flat lower part and a variable diameter upper part. A water collecting tank 12 is connected to the dehydration demister 10. The removed water then flows back into the water collecting tank 12 through the drain pipe 6. And a spraying water pump is installed in the water collecting tank 12. The water inside the water collecting tank 12 is sent into the cooler 8 through the spraying water pump to continue cooling the fluid in the coil. This process realizes the recycling of water resources and reduces the waste of water resources.

[0035] The whole device places the local fan 11 behind the cooler 8, which not only optimizes the condensation heat dissipation, but also realizes the function of water mist removal by means of the dehydration demister 10 installed between the local fan 11 and the cooler 8, effectively preventing the damage to the performance of the local fan 11 and the shortening of its service life.

[0036] Such as Figures 6-11As shown in the figure, a detachable cover 13 is installed on the water collecting tank 12. By opening the cover 13, the interior of the water collecting tank 12 can be maintained. The water collecting tank 12 collects the water in the dehydration demister 10. The water collecting tank 12 includes a first sedimentation tank 14, a second sedimentation tank 15 and a water storage tank 16. The water passing through the drain pipe 6 will first enter the first sedimentation tank 14 or the second sedimentation tank 15, and the water after sedimentation will enter the water storage tank 16. This is because when the local fan 11 in the mine is working, due to the narrow space inside the mine and poor air circulation, and a large amount of dust is generated during the mining operation, the local fan 11 is easily adsorbed with these dusts during operation. These dusts will be adsorbed by the water and flow into the interior of the water collecting tank 12 along with the water. In order to prevent the dust in the water from adhering to the cooler 8 and avoid the dust from reducing the cooling performance of the cooler 8, it is necessary to precipitate and filter the dust adsorbed by the water, and it can be ensured that it can be used for a long time without frequent maintenance. For example, if a filter screen is used for filtration, due to the large dust content in the mine, the filter screen needs to be cleaned frequently.

[0037] A valve system is installed in the water collecting tank 12. The valve system controls the water in the dehydration demister 10 to enter the first sedimentation tank 14 or the second sedimentation tank 15, and controls the communication state between the first sedimentation tank 14 and the second sedimentation tank 15 and the water storage tank 16. A diversion plate 17 is fixedly installed in both the first sedimentation tank 14 and the second sedimentation tank 15. A plurality of nozzles 18 are fixedly installed on the diversion plate 17. A water delivery pipe 19 is fixedly installed on the diversion plate 17. A diversion pipe 20 is fixedly installed on the two water delivery pipes 19. The drain pipe 6 is communicated with the diversion pipe 20. The valve system includes a first electric control valve 21 installed in the water delivery pipe 19. Through holes are provided between the first sedimentation tank 14 and the second sedimentation tank 15 and the water storage tank 16. A second electric control valve 22 is installed in the through holes. A controller is installed on the water collecting tank 12. The controller is electrically connected to the first electric control valve 21 and the second electric control valve 22. The controller controls the opening and closing states of the first electric control valve 21 and the second electric control valve 22. By controlling the blocking states of the two first electric control valves 21 through the controller, the first electric control valve 21 inside the first sedimentation tank 14 is opened and the first electric control valve 21 inside the second sedimentation tank 15 is closed. At this time, the water passing through the drain pipe 6 will enter the first sedimentation tank. After a period of time, when the water in the first sedimentation tank 14 is full, the first electric control valve 21 in the first sedimentation tank 14 is closed and the first electric control valve 21 inside the second sedimentation tank 15 is opened. At this time, the water passing through the drain pipe 6 will enter the second sedimentation tank 15. The water inside the first sedimentation tank 14 will gradually settle. When the dust in the water settles to the bottom of the first sedimentation tank 14, the second electric control valve 22 inside the first sedimentation tank 14 is opened through the controller. At this time, the settled water will enter the water storage tank 16, protecting the cleanliness of the water inside the water storage tank. And the spray water pump is located in the water storage tank 16, which can prevent the water containing dust from being sprayed onto the cooler 8. When the water in the first sedimentation tank 14 completely flows into the water storage tank 16, the second electric control valve 22 on the first sedimentation tank 14 is closed. And when the water in the second sedimentation tank 15 is full, the first electric control valve 21 in the second sedimentation tank 15 is closed, and the first electric control valve in the first sedimentation tank 14 is opened. And after the water in the second sedimentation tank 15 is settled, the second electric control valve 22 in the second sedimentation tank 15 is opened, so that the water in the second sedimentation tank 15 enters the water storage tank 16. Repeating the above process can complete the filtration of the dust in the water and make the filtered water enter the water storage tank 16.

[0038] Detachable sedimentation plates 30 are installed in both the first sedimentation tank 14 and the second sedimentation tank 15. Mud discharge auxiliary plates are installed above the sedimentation plates 30 in both the first sedimentation tank 14 and the second sedimentation tank 15. A plurality of flow-through grooves are provided on the mud discharge auxiliary plates. Plugging mechanisms for plugging the flow-through grooves are installed in both the first sedimentation tank 14 and the second sedimentation tank 15. The mud discharge auxiliary plate includes a plurality of baffles 23 fixedly installed in the first sedimentation tank 14 and the second sedimentation tank 15. There is a gap between two adjacent baffles 23. A plurality of sealing plates 24 are slidably installed in the first sedimentation tank 14 and the second sedimentation tank 15. The sealing plates 24 are located in the gaps between two adjacent baffles 23. The plugging mechanism includes a driving rod 25 slidably installed in the first sedimentation tank 14 and the second sedimentation tank 15. A plurality of connecting rods 26 are rotatably installed on the driving rod 25. The connecting rods 26 correspond to the sealing plates 24 one by one and are rotatably connected. One end of the driving rod 25 is fixedly installed with a transmission rod 27. The transmission rod 27 penetrates through one side of the water collecting tank 12 and extends to the outside of the water collecting tank 12. Two internal threaded rods 28 are rotatably installed on the water collecting tank 12. The internal threaded rods 28 correspond to the transmission rod 27 one by one. One end of the transmission rod 27 is provided with threads and is threadedly connected to the internal threaded rod 28. Since the surfaces of the baffles 23 and the sealing plates 24 are inclined, the dust in the water can slide down onto the sedimentation plate 30 under the action of gravity. Moreover, the staggered arrangement of the baffles 23 and the sealing plates 24 can effectively prevent the dust on the sedimentation plate 30 from flowing back above the baffles 23 again. When it is necessary to clean the sedimentation plate 30, rotating the internal threaded rod 28 can push the driving rod 25 to slide. The sliding driving rod 25 will drive the connecting rod 26 to rotate. The rotating connecting rod 26 will push the sealing plate 24 to move upward. And the surface of the sealing plate 24 is made of elastic rubber material, so that the sealing plate 24 can plug the gap between two adjacent baffles 23. At this time, the sedimentation plate 30 can be taken out. This process can be carried out when the machine is running, which can keep the machine running continuously, continuously cool the mine tunnel. After cleaning the sedimentation plate 30, the sedimentation plate 30 can be inserted into the first sedimentation tank 14 or the second sedimentation tank 15 again. Then, reversing the internal threaded rod 28 can reset the sealing plate 24, so that the dust can fall onto the sedimentation plate 30.

[0039] Among them, support rods 29 are fixedly installed in the first sedimentation tank 14 and the second sedimentation tank 15. A chute is provided in the driving rod 25. The support rods 29 are slidably connected to the chute. Through the guiding action of the support rods 29 and the chute, the driving rod 25 can slide along the support rods 29.

[0040] Working principle: Under the action of the negative pressure of the local fan 11, the high-speed air flow passes through the cooler 8 with spraying and becomes an air flow with high temperature and carrying a large amount of water droplets. This air flow enters the box body 2, and under the action of the air inlet equalizing diffuser 1, the air flow with high temperature and carrying a large amount of water droplets is evenly distributed and passes through the high-efficiency demisting water baffle 4. Under the action of the high-efficiency demisting water baffle 4, the water mist in the air flow is removed and evenly discharged through the air outlet equalizing diffuser 5. The water mist intercepted by the high-efficiency demisting water baffle 4 converges into water droplets under the action of gravity and falls on the bottom plate of the box body 2.

[0041] The water passing through the drain pipe 6 will first enter the first sedimentation tank 14 or the second sedimentation tank 15. After sedimentation, the water will enter the water storage tank 16, protecting the cleanliness of the water inside the water storage tank. Moreover, the spraying water pump is located in the water storage tank 16, which can prevent the water containing dust from being sprayed onto the cooler 8.

[0042] The above specific embodiments are only several alternative embodiments of the present utility model. Based on the technical solution of the present utility model and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A mine cooling unit cooler energy-saving and water-saving demister, comprising a cooler (8) and a local fan (11), characterized in that: Also includes: A dehydration demister (10) connected to one end of the cooler (8) via a connecting pipe (9), the other end of the dehydration demister (10) being connected to an air inlet of a local fan (11), the dehydration demister (10) removing water vapor passing through the cooler (8); A water collecting trough (12) connected to the dehydration demister (10), the water collecting trough (12) collecting water in the dehydration demister (10), the water collecting trough (12) comprising a first sedimentation tank (14), a second sedimentation tank (15) and a water storage tank (16), a valve system installed in the water collecting trough (12), the valve system controlling the water in the dehydration demister (10) to enter the first sedimentation tank (14) or the second sedimentation tank (15), and controlling the connection state between the first sedimentation tank (14) and the second sedimentation tank (15) and the water storage tank (16), a detachable sedimentation plate (30) installed in the first sedimentation tank (14) and the second sedimentation tank (15), a mud discharge auxiliary plate installed in the first sedimentation tank (14) and the second sedimentation tank (15) and located above the sedimentation plate (30), a plurality of flow slots are arranged on the mud discharge auxiliary plate, and a blocking mechanism for blocking the flow slots is installed in the first sedimentation tank (14) and the second sedimentation tank (15).

2. The energy-saving and water-saving demister for a mine cooling unit cooler according to claim 1, characterized in that: The dehydration demister (10) comprises a housing (2), an air inlet equalizing diffuser (1) fixedly mounted on one end of the housing (2), and an air outlet equalizing diffuser (5) fixedly mounted on the other end of the housing (2); a high-efficiency demisting water baffle (4) is fixedly mounted in the middle of the housing (2).

3. The energy-saving and water-saving demister for a mine cooling unit cooler according to claim 2, characterized in that: A detachable inspection port (3) is installed on the top of the box body (2), a plurality of supporting legs (7) are fixedly installed on the bottom of the box body (2), and a drainage pipe (6) is fixedly installed on the box body (2).

4. The energy-saving and water-saving demister for a mine cooling unit cooler according to claim 3, characterized in that: A diverter plate (17) is fixedly installed in both the first sedimentation tank (14) and the second sedimentation tank (15), a plurality of nozzles (18) are fixedly installed on the diverter plate (17), a water pipe (19) is fixedly installed on the diverter plate (17), a diverter pipe (20) is fixedly installed on the two water pipes (19), and the drainage pipe (6) is connected to the diverter pipe (20).

5. The energy-saving and water-saving demister for a mine cooling unit cooler according to claim 4, characterized in that: The valve system comprises a first electrically controlled valve (21) installed in a water pipe (19); through holes are provided between the first sedimentation tank (14) and the second sedimentation tank (15) and the water storage tank (16); a second electrically controlled valve (22) is installed in the through holes; a controller is installed on the water collection tank (12); the controller is electrically connected to the first electrically controlled valve (21) and the second electrically controlled valve (22); and the controller controls the opening and closing states of the first electrically controlled valve (21) and the second electrically controlled valve (22).

6. The energy-saving and water-saving demister for a mine cooling unit cooler according to claim 5, characterized in that: The mud discharge auxiliary plate comprises a plurality of baffles (23) fixedly installed in the first sedimentation tank (14) and the second sedimentation tank (15), a gap is provided between two adjacent baffles (23), and a plurality of sealing plates (24) are slidably installed in the first sedimentation tank (14) and the second sedimentation tank (15), and the sealing plates (24) are located in the gap between two adjacent baffles (23).

7. The energy-saving and water-saving demister for a mine cooling unit cooler according to claim 6, characterized in that: The blocking mechanism comprises a driving rod (25) slidably mounted in the first sedimentation tank (14) and the second sedimentation tank (15); a plurality of connecting rods (26) are rotatably mounted on the driving rod (25); the connecting rods (26) correspond one-to-one to the sealing plate (24) and are rotatably connected; a transmission rod (27) is fixedly mounted on one end of the driving rod (25); the transmission rod (27) passes through one side of the water collecting tank (12) and extends to the outside of the water collecting tank (12); two internal threaded rods (28) are rotatably mounted on the water collecting tank (12); the internal threaded rods (28) correspond one-to-one to the transmission rods (27); one end of the transmission rod (27) is provided with a thread and is threadably connected to the internal threaded rod (28).

8. The energy-saving and water-saving demister for a mine cooling unit cooler according to claim 7, characterized in that: A support rod (29) is fixedly installed in the first sedimentation tank (14) and the second sedimentation tank (15), a slide groove is provided in the driving rod (25), and the support rod (29) is slidably connected to the slide groove.

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