Energy-saving heat exchanger for mine deep shaft roadway ventilation and refrigeration

Abstract

This invention discloses an energy-saving heat exchanger for ventilation and cooling in deep mine tunnels, relating to the technical field of energy-saving heat exchange devices. It includes a base plate, a finned heat exchanger mounted on the base plate, a delivery pump mounted on the base plate, a bent pipe mounted on the delivery pump, and a straight pipe connector mounted on the finned heat exchanger. An anti-clogging mechanism is installed on the finned heat exchanger to prevent impurities in the water from adhering to the inner wall of the straight pipe connector. Simultaneously, it purifies the water-based medium, precisely intercepting fine particles such as residual sand in the water, achieving stratified filtration of coarse and fine impurities. By utilizing the heat exchange medium to exchange heat with external fluids, it effectively maintains the original heat exchange efficiency of the finned heat exchanger, ensuring stable and compliant ventilation and cooling effects in deep mine tunnels. It also prevents impurities from being scattered throughout the pipes, preventing multi-point accumulation of impurities that hinders the normal flow of the medium.

Description

Technical Field

[0001] This invention relates to the field of energy-saving heat exchange device technology, specifically to an energy-saving heat exchanger for ventilation and cooling in deep mine tunnels. Background Technology

[0002] As the exploitation of deep mineral resources intensifies and the depth of deep-well mining operations continues to increase, underground roadways generally suffer from problems such as high ground temperature, large heat dissipation from surrounding rock, and concentrated heat generation from mechanical equipment. This leads to a sharp rise in the ambient temperature within the roadways. Currently, the industry mostly uses methods such as direct mechanical ventilation and centralized forced cooling units to cool and dissipate heat in deep-well roadways. Although these cooling methods can achieve basic temperature control, they generally have drawbacks such as high energy consumption and the inability to recover and utilize heat, making it difficult to align with the current development concepts of green mine construction and energy conservation.

[0003] Currently, energy-saving heat exchange devices used for ventilation and cooling in deep mine tunnels in the industry mostly use finned heat exchangers as the core heat exchange components. They utilize heat exchange media to exchange heat with external fluids (usually gases) and water-based media to exchange heat with underground airflow, achieving cooling of incoming air and recovery of waste heat from return air, thus achieving the purpose of energy saving and consumption reduction. However, the environment of deep mining is harsh, and the water-based media used for heat exchange, whether from surface water sources or underground recycled water sources, inevitably contain a large number of impurities and particles, including coal dust, rock powder, scale particles, and pipeline corrosion impurities. These impurities and particles are easily introduced into the heat exchanger during the refrigerant circulation process.

[0004] Existing energy-saving heat exchange devices generally lack targeted impurity filtration and interception structures, making it difficult to effectively prevent fine impurities and particles from entering the finned heat exchanger. Once inside the heat exchanger, these impurities and particles easily adhere to the fin surface and clog the heat exchange channels. This significantly reduces heat exchange efficiency, leading to a substantial increase in cooling energy consumption, which contradicts the original design intent of energy-saving heat exchange devices. Furthermore, clogged heat exchangers require frequent shutdowns for disassembly and cleaning, increasing equipment maintenance workload and costs. It also affects the continuous operation of deep well ventilation and cooling systems, making it difficult to guarantee a stable working temperature environment underground. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an energy-saving heat exchanger for ventilation and cooling in deep mine tunnels, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving heat exchanger for ventilation and cooling in deep mine roadways, comprising a base plate, a finned heat exchanger mounted on the base plate, a delivery pump mounted on the base plate, a bent pipe mounted on the delivery pump, and a straight pipe connector mounted on the finned heat exchanger. The energy-saving heat exchanger for ventilation and cooling in deep mine roadways further includes: An anti-clogging mechanism, installed on the finned heat exchanger, is used to prevent impurities in the water from adhering to the inner wall of the straight pipe connector; An interception mechanism, installed on the straight pipe connector, is used to block and intercept large particulate impurities in the water.

[0007] The anti-clogging mechanism includes a straight plate installed on the straight pipe connector, a rotating plate installed on the straight plate, and a spiral blade plate installed on the rotating plate. The spiral blade plate will rotate under the impact force of the water flow. During the rotation, the spiral blade plate will process the impurities attached to the inner wall of the straight pipe connector. The straight pipe connector is provided with a filter plate for intercepting fine particles. The interception structure includes a baffle mounted on the straight pipe connector, a turntable one mounted on the turntable, a rotating plate one mounted on the turntable one, a hinge block mounted on the rotating plate one, a rotating plate two mounted on the hinge block by a torsion spring, and a push plate mounted on the rotating plate two. The push plate is used to push the intercepted impurities to move. The turntable two is mounted on the rotating plate one.

[0008] The straight pipe connector is in contact with the push plate, the spiral blade is in contact with the straight pipe connector, and the rotating plate will exert a downward squeezing force on the hinge block during its rotation. The filter plate has a groove.

[0009] The interception mechanism also includes a closing mechanism installed on the straight pipe connector. The closing mechanism includes a double-opening box installed on the straight pipe connector, a sliding plate installed on the double-opening box, a short plate installed on the push plate, a force-bearing plate installed on the sliding plate, and an elastic rod installed on the sliding plate. The elastic rod is provided with a spring on its surface, and the double-opening box is used to seal and store particulate impurities in the water.

[0010] The closing mechanism also includes a circular plate mounted on the turntable two, a movable rod mounted on the circular plate, a U-shaped rod mounted on the baffle, a rotating rod one mounted on the U-shaped rod, a rubber wheel mounted on the rotating rod one, and an elastic plate mounted on the rotating rod one. The elastic plate will be used to generate an impact force on the filter plate.

[0011] The circular plate is rotatably connected to the baffle, the moving rod is in contact with the U-shaped rod, the rubber wheel is in contact with the filter plate, and the short plate is in contact with the force plate.

[0012] The anti-blocking mechanism also includes a quick-release mechanism installed on the straight pipe connector. The quick-release mechanism includes a rotating rod II installed on the straight pipe connector, a transmission wheel installed on the rotating rod II, and a cleaning plate installed on the rotating rod II. The cleaning plate will be used to improve the filtration effect of the filter plate pair.

[0013] The quick-release mechanism includes a fixing plate mounted on the straight pipe connector, a connecting rod mounted on the fixing plate, a limiting plate mounted on the fixing plate, a limiting rod mounted on the fixing plate, and a pulling plate mounted on the limiting rod. The limiting plate has an inclined surface on one side, and the limiting plate is used to limit the position of the filter plate.

[0014] The filter plate is in contact with the limiting plate, and a spring is provided on the surface of the connecting rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, during refrigeration and heat exchange, the high-temperature return air from the mine flows evenly through the shell side of the finned heat exchanger. It utilizes the heat exchange medium to exchange heat with the external fluid and forms a highly efficient heat exchange with the low-temperature liquid cooling medium inside the finned heat exchanger. The heat from the high-temperature return air is transferred through the fins to the refrigerant in the tube side, lowering the return air temperature. The cooled return air can then be directly sent to the underground working face, achieving the core function of ventilation and cooling in the roadway. Simultaneously, the refrigerant in the finned heat exchanger absorbs heat and its temperature rises, completing the heat absorption process. Subsequently, the liquid cooling medium enters the inside of the bend tube, enhancing the initial heat exchange between the refrigerant and the surrounding environment, improving the overall energy-saving effect. When the medium enters the finned heat exchanger through the straight pipe connector, it rubs against the inner wall, scraping off accumulated scale, silt, and impurities, preventing long-term adhesion and accumulation of impurities that could reduce the pipe diameter. Simultaneously, after the medium enters the straight pipe connector, the baffle intercepts larger fixed particles of impurities in the medium, preventing them from clogging the interior of the finned heat exchanger and causing a decrease in heat exchange efficiency. At the same time, it can perform secondary purification of water-based media, accurately intercepting fine particles of impurities such as residual coal powder, rock powder, scale particles, and fine sand in the water, achieving layered filtration of coarse and fine impurities, resulting in a more comprehensive purification effect. This effectively maintains the original heat exchange efficiency of the finned heat exchanger, ensuring stable and compliant ventilation and cooling effects in deep shaft tunnels. During the ventilation and cooling process, the pushing plate will come into contact with deposited impurities as it moves outward, thus pushing the impurities to one place and allowing them to accumulate in a designated location. This prevents impurities from being scattered throughout the pipes, preventing multiple accumulations of impurities from hindering the normal flow of the medium, and achieving fixed-point collection and storage of impurities, making it convenient for staff to clean impurities in a concentrated manner.

[0016] 2. In this invention, during the processing of residues and impurities, the sliding plate can be reset by the movement of the spring on the surface of the elastic rod, thereby sealing and independently storing the impurities inside the double-opening box, preventing leakage of impurities, and thus concentrating and sealing various impurities intercepted by filtration, effectively preventing impurities from re-scattering and flowing back into the water circulation pipeline, and avoiding impurities from re-entering the finned heat exchanger with the medium flow, further enhancing the anti-clogging protection effect of the pipeline. At the same time, when the double-opening box is full, the elastic plate will contact the filter plate during rotation, thereby tapping the filter plate to generate impact force, which can use vibration force to shake off impurities such as coal powder, rock powder, and scale particles attached and stuck in the filter holes, effectively clearing the filter plate pores, avoiding filter hole blockage and failure, ensuring that the filter plate maintains its permeability for a long time, reducing the resistance of water-based medium transportation, reducing the workload of the delivery pump, further improving the overall energy-saving effect of the equipment, and ensuring the long-term continuous and stable operation of the heat exchange and refrigeration system.

[0017] 3. In this invention, when the filter plate needs to be replaced during the maintenance of the finned heat exchanger, the filter plate can be quickly replaced, thereby greatly simplifying the underground maintenance operation process, improving maintenance efficiency, quickly restoring the filter plate's interception and purification capacity, continuously blocking fine particulate impurities from entering the finned heat exchanger, stabilizing the equipment's ventilation, cooling, and energy-saving heat exchange effects, ensuring the continuous operation of the underground roadway cooling and ventilation system, reducing the difficulty of daily maintenance, reducing manual maintenance workload, extending the service life of filter accessories, saving on later maintenance costs, and comprehensively improving the stability and practicality of the entire energy-saving heat exchange device. During operation, the rotating cleaning plate automatically removes impurities from the filter plate surface, further simplifying the equipment maintenance process, effectively reducing the labor intensity of underground personnel, quickly clearing blocked filter holes, rapidly restoring the filter plate's filtration permeability, ensuring its stable interception of fine impurities, and eliminating the need to remove the filter plate for separate cleaning. This significantly shortens maintenance time, reduces downtime of the refrigeration and ventilation system, ensures continuous cooling operations in underground roadways, stabilizes the equipment's heat exchange and cooling effect, reduces the flow resistance of the water circulation medium, lowers the energy consumption of the delivery pump, and further improves the overall operating efficiency and stability of the energy-saving heat exchange device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the position and structure of the straight pipe connector and the straight plate of the present invention; Figure 3 This is a schematic diagram of the position structure of the double-opening box and the sliding plate of the present invention; Figure 4 This is a schematic diagram of the positional structure of the rotating plate 2 and the pushing plate of the present invention; Figure 5 For the present invention Figure 3 Enlarged view of the structure at point A in the middle; Figure 6 This is a schematic diagram of the positional structure of the moving rod and rotating rod of the present invention; Figure 7 This is a schematic diagram of the position structure of the fixing plate and connecting rod of the present invention.

[0019] The meanings of the labels in the diagram are as follows: 1. Base plate; 2. Finned heat exchanger; 3. Transfer pump; 4. Bent pipe; 5. Straight pipe connector; 6. Straight plate; 7. Rotating plate; 8. Spiral blade; 9. Baffle; 10. Turntable one; 11. Rotating plate one; 12. Turntable two; 13. Hinge block; 14. Rotating plate two; 15. Push plate; 16. Closing mechanism; 161. Double-leaf box; 162. Sliding plate; 163. Short plate; 164. Load-bearing plate 165. Elastic rod; 166. Circular plate; 167. Moving rod; 168. U-shaped rod; 169. Rotating rod one; 1610. Rubber wheel; 1611. Elastic plate; 17. Quick release mechanism; 171. Rotating rod two; 172. Transmission wheel; 173. Cleaning plate; 174. Fixing plate; 175. Connecting rod; 176. Limiting plate; 177. Limiting rod; 178. Pulling plate; 18. Filter plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Please see Figures 1-4 One embodiment of the present invention is: an energy-saving heat exchanger for ventilation and cooling in deep mine tunnels, comprising a base plate 1, a finned heat exchanger 2 mounted on the base plate 1, a shell side of the finned heat exchanger 2 through which high-temperature return air from the mine flows evenly, a delivery pump 3 mounted on the base plate 1, a bent pipe 4 mounted on the delivery pump 3, and a straight pipe connector 5 mounted on the finned heat exchanger 2. The energy-saving heat exchanger for ventilation and cooling in deep mine tunnels further includes: An anti-clogging mechanism is installed on the finned heat exchanger 2 to prevent impurities in the water from adhering to the inner wall of the straight pipe connector 5. The interception mechanism, installed on the straight pipe connector 5, is used to block and intercept large particulate impurities in the water.

[0022] The anti-clogging mechanism includes a straight plate 6 installed on the straight pipe connector 5, a rotating plate 7 installed on the straight plate 6, and a spiral blade 8 installed on the rotating plate 7. When the spiral blade 8 rotates, it will drive the rotating plate 7 to rotate synchronously. The spiral blade 8 will rotate due to the impact force of the water flow. During the rotation, the spiral blade 8 will process the impurities attached to the inner wall of the straight pipe connector 5. The straight pipe connector 5 is equipped with a filter plate 18 for intercepting fine particles.

[0023] In this embodiment, during refrigeration and heat exchange, the delivery pump 3 starts to provide power to the entire refrigerant circulation system. At this time, the liquid cooling medium enters the interior of the finned heat exchanger 2 through the straight pipe connector 5. Meanwhile, the high-temperature return air from the mine flows evenly through the shell side of the finned heat exchanger 2, forming a highly efficient heat exchange with the low-temperature liquid cooling medium inside. The heat from the high-temperature return air is transferred to the refrigerant in the tube side through the fins, lowering the return air temperature. The cooled return air can then be directly sent to the underground working face, achieving the core function of roadway ventilation and cooling. Simultaneously, the refrigerant in the finned heat exchanger 2 absorbs heat and its temperature rises, completing the heat absorption process. Subsequently, the liquid cooling medium enters the interior of the bend tube 4. The bend tube 4 extends the flow velocity of the medium within the pipe, reducing the impact of impurities on the inner wall of the bend tube 4 and the subsequent finned heat exchanger 2. It also enhances the initial heat exchange between the refrigerant and the surrounding environment, improving the overall energy-saving effect. When the medium enters the interior of the finned heat exchanger 2 through the straight pipe connector 5, the medium first interacts with... The spiral blade 8 contacts and impacts the spiral blade 8, enabling it to rotate due to the flow of water. As the spiral blade 8 rotates, it drives the rotating plate 7 to rotate synchronously. During this rotation, the spiral blade 8 contacts the inner wall of the straight pipe connector 5, generating friction that scrapes off accumulated scale, silt, and impurities, preventing long-term adhesion and accumulation that could reduce the pipe diameter. Simultaneously, after the medium enters the straight pipe connector 5, the baffle 9 intercepts larger fixed particles in the medium, preventing them from clogging the finned heat exchanger 2 and reducing heat exchange efficiency. The medium continues to flow through the holes above the baffle 9 and passes through the filter plate 18, thus performing secondary purification of the water-based medium. This precisely intercepts fine particles such as residual coal dust, rock dust, scale particles, and fine sand, achieving layered filtration of coarse and fine impurities for more comprehensive purification. This effectively maintains the original heat exchange efficiency of the finned heat exchanger 2, ensuring stable and compliant ventilation and cooling performance in deep shaft tunnels.

[0024] The interception structure includes a baffle 9 installed on the straight pipe connector 5, which intercepts larger fixed particulate impurities in the medium; a turntable 10 installed on the rotating plate 7, which rotates the rotating plate 7 to drive the turntable 10 to rotate; a rotating plate 11 installed on the turntable 10; a hinge block 13 installed on the rotating plate 11; a second rotating plate 14 installed on the hinge block 13 by a torsion spring; and a push plate 15 installed on the second rotating plate 14, which pushes the intercepted impurities to move. The second rotating plate 12 is installed on the rotating plate 11.

[0025] The straight pipe connector 5 is in contact with the push plate 15, the spiral blade 8 is in contact with the straight pipe connector 5, and the rotating plate 11 will exert a downward squeezing force on the hinge block 13 during the rotation process. The filter plate 18 has a groove.

[0026] During the ventilation and cooling process, the rotation of the rotating plate 7 will drive the rotating disk 10 to rotate. The rotation of the rotating disk 10 will exert a downward squeezing force on the rotating plate 11. At the same time, the rotating plate 14 will rotate towards the pushing plate 15 through the torsion spring, and will pull the hinge block 13 and the rotating plate 11 to move downward. Meanwhile, the rotating plate 11 will exert a downward squeezing force on the hinge block 13 and the rotating plate 14, causing the pushing plate 15 to move. As the pushing plate 15 moves outward, it will come into contact with the deposited impurities, thereby pushing the impurities to one place, so that the impurities can be sent to the designated location for centralized accumulation, avoiding the scattered distribution of impurities in various parts of the pipeline, preventing the accumulation of impurities at multiple points from obstructing the normal flow of the medium, realizing the fixed-point collection and storage of impurities, and making it convenient for staff to clean impurities in a fixed location.

[0027] Example 2: Please see Figures 3-6 Based on the above embodiments, in another embodiment of the present invention, the interception mechanism further includes a closing mechanism 16 installed on the straight pipe connector 5. The closing mechanism 16 includes a double-opening box 161 installed on the straight pipe connector 5, a sliding plate 162 installed on the double-opening box 161, a force plate 164 moving to drive the sliding plate 162 to move, a short plate 163 installed on the push plate 15, a force plate 164 installed on the sliding plate 162, and an elastic rod 165 installed on the sliding plate 162. When the sliding plate 162 moves outward, it pushes the elastic rod 165 to move outward. The elastic rod 165 has a spring on its surface, the double-opening box 161 is used to seal and store particulate impurities in the water, and the push plate 15 can push the impurities into the interior of the double-opening box 161.

[0028] The sealing mechanism 16 also includes a circular plate 166 mounted on the turntable 12, a moving rod 167 mounted on the circular plate 166, a U-shaped rod 168 mounted on the baffle 9, a rotating rod 169 mounted on the U-shaped rod 168, a rubber wheel 1610 mounted on the rotating rod 169, and an elastic plate 1611 mounted on the rotating rod 169. The rubber wheel 1610 will contact the surface of the filter plate 18 during the upward movement, and the rotation of the rubber wheel 1610 will drive the rotating rod 169 to rotate. Among them, the elastic plate 1611 will be used to generate impact force on the filter plate 18.

[0029] The circular plate 166 is rotatably connected to the baffle 9, the moving rod 167 is in contact with the U-shaped rod 168, the rubber wheel 1610 is in contact with the filter plate 18, the short plate 163 is in contact with the force plate 164, and the rotation of the turntable 12 will drive the circular plate 166 to rotate.

[0030] In this embodiment, during the processing of residues and impurities, the movement of the push plate 15 causes the short plate 163 to move, which in turn causes the force plate 164 to move. The force plate 164 then causes the sliding plate 162 to move. When the sliding plate 162 moves outward, it pushes the elastic rod 165 outward and stretches the spring on its surface, thereby opening the double-opening box 161. This allows the push plate 15 to push the impurities into the double-opening box 161. When the push plate 15 returns to its original position, the sliding plate 162 can move through the elastic rod 16... 5. The spring on the surface moves to reset, thus sealing and independently storing the impurities inside the double-opening box 161, preventing leakage. This effectively prevents impurities from being scattered and flowing back into the water circulation pipeline, avoiding secondary intrusion of impurities into the finned heat exchanger 2 with the medium flow, and further enhancing the anti-clogging protection effect of the pipeline. At the same time, when the double-opening box 161 is full, the staff can clean the impurities through the opening at the bottom of the double-opening box 161. Simultaneously, the rotation of the turntable 12 will drive the circular plate 166 to rotate. Rotation of rod 166 causes moving rod 167 to rotate. As moving rod 167 rotates upward, it causes U-shaped rod 168 to move upward. As U-shaped rod 168 moves upward, it causes rotating rod 169 to move upward. The upward movement of rotating rod 169 causes rubber wheel 1610 to move upward. During this upward movement, rubber wheel 1610 comes into contact with the surface of filter plate 18, generating friction. This friction causes rubber wheel 1610 to rotate, which in turn causes rotating rod 169 to rotate. Rotating rod 169 will cause elastic plate 1611 to rotate. During the rotation, elastic plate 1611 will come into contact with filter plate 18, thereby impacting filter plate 18 and generating an impact force. This vibration force can dislodge impurities such as coal powder, rock powder, and scale particles that are stuck in the filter holes, effectively clearing the pores of filter plate 18, preventing filter hole blockage and failure, ensuring that filter plate 18 maintains its permeability for a long time, reducing the resistance of water-based media transportation, reducing the workload of delivery pump 3, further improving the overall energy-saving effect of the equipment, and ensuring the long-term continuous and stable operation of the heat exchange and refrigeration system.

[0031] Example 3: Please see Figures 6-7 Based on the above embodiments, in another embodiment of the present invention, the anti-blocking mechanism further includes a quick-release mechanism 17 installed on the straight pipe connector 5. The quick-release mechanism 17 includes a rotating rod 171 installed on the straight pipe connector 5, a transmission wheel 172 installed on the rotating rod 171, and a cleaning plate 173 installed on the rotating rod 171. The rotation of the transmission wheel 172 will drive the rotating rod 171 to rotate. The cleaning plate 173 will be used to improve the filtration effect of the filter plate 18.

[0032] The quick-release mechanism 17 includes a fixing plate 174 mounted on the straight pipe connector 5, a connecting rod 175 mounted on the fixing plate 174, a limiting plate 176 mounted on the fixing plate 174, a limiting rod 177 mounted on the fixing plate 174, and a pulling plate 178 mounted on the limiting rod 177. Moving the pulling plate 178 will cause the limiting rod 177 to move. The limiting plate 176 has an inclined surface on one side. The limiting plate 176 is used to limit the filter plate 18. During the movement of the limiting plate 176, the spring on the surface of the connecting rod 175 will be compressed.

[0033] The filter plate 18 is in contact with the limiting plate 176, and a spring is provided on the surface of the connecting rod 175.

[0034] In this embodiment, when the filter plate 18 needs to be replaced during maintenance of the finned heat exchanger 2, the operator pulls the pull plate 178 outward. The movement of the pull plate 178 will cause the limit rod 177 to move simultaneously, and the connecting rod 175 will move synchronously. The movement of the connecting rod 175 will cause the limit plate 176 to move. During the movement of the limit plate 176, the spring on the surface of the connecting rod 175 will be compressed, and the limit on the filter plate 18 will be released. At this time, the filter plate 18 can be pulled out from the inside of the straight pipe connector 5, so that the filter plate 18 can be quickly maintained and replaced. This greatly simplifies the underground maintenance operation process, improves maintenance efficiency, quickly restores the interception and purification capacity of the filter plate 18, continuously blocks fine particulate impurities from entering the finned heat exchanger 2, stabilizes the ventilation, cooling and energy-saving heat exchange effect of the equipment, ensures the continuous operation of the underground roadway cooling and ventilation system, reduces the difficulty of daily maintenance, reduces the workload of manual operation and maintenance, extends the service life of filter accessories, saves the later maintenance cost of the equipment, and comprehensively improves the stability and practicality of the entire energy-saving heat exchange device.

[0035] During maintenance, the filter plate 18 is pulled outward and comes into contact with the drive wheel 172, generating friction that forces the drive wheel 172 to rotate. The rotation of the drive wheel 172 drives the rotating rod 171 to rotate, which in turn drives the cleaning plate 173 to rotate. The rotation of the cleaning plate 173 automatically removes impurities from the surface of the filter plate 18, thereby further simplifying the equipment maintenance process, effectively reducing the labor intensity of underground personnel, quickly clearing blocked filter holes, rapidly restoring the filtration permeability of the filter plate 18, ensuring its stable interception of fine impurities, and eliminating the need to remove the filter plate 18 for separate cleaning. This significantly shortens maintenance time, reduces downtime of the refrigeration and ventilation system, ensures continuous cooling operations in underground roadways, stabilizes the heat exchange and cooling effect of the equipment, reduces the flow resistance of the water circulation medium, reduces the energy consumption of the delivery pump 3, and further improves the overall operating efficiency and stability of the energy-saving heat exchange device.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving heat exchanger for ventilation and cooling in deep mine roadways, comprising a base plate (1), a finned heat exchanger (2) mounted on the base plate (1), a delivery pump (3) mounted on the base plate (1), a bent pipe (4) mounted on the delivery pump (3), and a straight pipe connector (5) mounted on the finned heat exchanger (2), characterized in that, The energy-saving heat exchanger for ventilation and cooling in deep mine tunnels also includes: An anti-clogging mechanism is installed on the finned heat exchanger (2) to prevent impurities in the water from adhering to the inner wall of the straight pipe connector (5); An interception mechanism is installed on the straight pipe connector (5) to block and intercept large particulate impurities in the water.

2. The energy-saving heat exchanger for mine deep shaft roadway ventilation and refrigeration according to claim 1, characterized in that: The anti-clogging mechanism includes a straight plate (6) installed on the straight pipe connector (5), a rotating plate (7) installed on the straight plate (6), and a spiral blade (8) installed on the rotating plate (7). The spiral blade (8) will rotate due to the impact force of the water flow. During the rotation, the spiral blade (8) will process the impurities attached to the inner wall of the straight pipe connector (5). The straight pipe connector (5) is provided with a filter plate (18) for intercepting fine particles. The interception structure includes a baffle (9) mounted on the straight pipe connector (5), a turntable one (10) mounted on the turntable (7), a rotating plate one (11) mounted on the turntable one (10), a hinge block (13) mounted on the rotating plate one (11), a rotating plate two (14) mounted on the hinge block (13) by a torsion spring, and a push plate (15) mounted on the rotating plate two (14). The push plate (15) is used to push the intercepted impurities to move. The turntable two (12) is mounted on the rotating plate one (11).

3. The energy-saving heat exchanger for mine deep shaft roadway ventilation and refrigeration according to claim 2, characterized in that: The straight pipe connector (5) is in contact with the push plate (15), the spiral blade plate (8) is in contact with the straight pipe connector (5), and the rotating plate (11) will exert a downward squeezing force on the hinge block (13) during its rotation. The filter plate (18) has a groove.

4. The energy-saving heat exchanger for ventilation and cooling in deep mine roadways according to claim 2, characterized in that: The interception mechanism also includes a closing mechanism (16) installed on the straight pipe connector (5). The closing mechanism (16) includes a double-opening box (161) installed on the straight pipe connector (5), a sliding plate (162) installed on the double-opening box (161), a short plate (163) installed on the push plate (15), a force-bearing plate (164) installed on the sliding plate (162), and an elastic rod (165) installed on the sliding plate (162). The elastic rod (165) is provided with a spring on its surface, and the double-opening box (161) is used to seal and store particulate impurities in the water.

5. The energy-saving heat exchanger for mine deep shaft roadway ventilation and refrigeration according to claim 4, characterized in that: The closing mechanism (16) further includes a circular plate (166) mounted on the turntable (12), a moving rod (167) mounted on the circular plate (166), a U-shaped rod (168) mounted on the baffle (9), a rotating rod (169) mounted on the U-shaped rod (168), a rubber wheel (1610) mounted on the rotating rod (169), and an elastic plate (1611) mounted on the rotating rod (169). The elastic plate (1611) will be used to generate an impact force on the filter plate (18).

6. The energy-saving heat exchanger for mine deep shaft roadway ventilation and refrigeration according to claim 5, characterized in that: The circular plate (166) is rotatably connected to the baffle (9), the moving rod (167) is in contact with the U-shaped rod (168), the rubber wheel (1610) is in contact with the filter plate (18), and the short plate (163) is in contact with the force plate (164).

7. The energy-saving heat exchanger for mine deep shaft roadway ventilation and refrigeration according to claim 2, characterized in that: The anti-blocking mechanism also includes a quick-release mechanism (17) installed on the straight pipe connector (5). The quick-release mechanism (17) includes a rotating rod (171) installed on the straight pipe connector (5), a transmission wheel (172) installed on the rotating rod (171), and a cleaning plate (173) installed on the rotating rod (171). The cleaning plate (173) is used to improve the filtration effect of the filter plate (18).

8. The energy-saving heat exchanger for mine deep shaft roadway ventilation and refrigeration according to claim 7, characterized in that: The quick-release mechanism (17) includes a fixing plate (174) mounted on the straight pipe connector (5), a connecting rod (175) mounted on the fixing plate (174), a limiting plate (176) mounted on the fixing plate (174), a limiting rod (177) mounted on the fixing plate (174), and a pulling plate (178) mounted on the limiting rod (177). The limiting plate (176) has an inclined surface on one side, and the limiting plate (176) is used to limit the filter plate (18).

9. The energy-saving heat exchanger for mine deep shaft and roadway ventilation refrigeration according to claim 8, characterized in that: The filter plate (18) is in contact with the limiting plate (176), and the surface of the connecting rod (175) is provided with a spring.

Images