CN114184064A - Vertical cross type mine return air heating fresh air heat exchanger and heat exchange method thereof - Google Patents
Vertical cross type mine return air heating fresh air heat exchanger and heat exchange method thereof Download PDFInfo
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- CN114184064A CN114184064A CN202111532374.4A CN202111532374A CN114184064A CN 114184064 A CN114184064 A CN 114184064A CN 202111532374 A CN202111532374 A CN 202111532374A CN 114184064 A CN114184064 A CN 114184064A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000005192 partition Methods 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 4
- 230000005389 magnetism Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000002114 nanocomposite Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 14
- 239000002918 waste heat Substances 0.000 abstract description 9
- 239000003345 natural gas Substances 0.000 abstract description 7
- 239000000428 dust Substances 0.000 abstract description 4
- 230000008014 freezing Effects 0.000 abstract description 4
- 238000007710 freezing Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 244000241796 Christia obcordata Species 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000007664 blowing Methods 0.000 description 6
- 239000003245 coal Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 230000001376 precipitating effect Effects 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1607—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with particular pattern of flow of the heat exchange media, e.g. change of flow direction
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/30—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being attachable to the element
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a vertical cross type mine return air heating fresh air heat exchanger and a heat exchange method thereof, belonging to the field of heat exchangers, the vertical cross type mine return air heating fresh air heat exchanger comprises a heat exchanger shell, the upper end and the lower end of the heat exchanger shell are respectively communicated with a return air inlet pipeline and a return air outlet pipeline, the vertical cross type mine return air heating fresh air heat exchanger adopts mine return air to directly heat fresh air entering a well, not only can the aim of preventing a shaft from freezing be achieved, but also the waste heat in the mine return air can be effectively utilized, under the condition that the current small and medium-sized coal-fired boiler is gradually limited to use and the natural gas supply is unstable, the mine return air is a stable and high-quality waste heat resource, and a wind blade imitating a butterfly wing is blown by the fresh air, so that a hitting block hits against a vibration fork to generate vibration, thereby the inside of a heat exchange tube can generate vibration, and liquid drops condensed in the heat exchange tube can slide down more quickly, the dust brought in by the fresh air can be prevented from being precipitated on the outer surface of the heat exchange tube, so that the heat exchange coefficient can be effectively improved.
Description
Technical Field
The invention relates to the field of heat exchangers, in particular to a vertical cross type mine return air heating fresh air heat exchanger and a heat exchange method thereof.
Background
In mine ventilation, the air flow coming out after cleaning the working surface is called "return air". The tunnel through which the return air flows is called a return air tunnel, the return air tunnel is used for return air as the name suggests, for the major ventilation and air conditioning, on the premise that fresh air meets personnel, equipment and processes, the air in an air-conditioned room is not completely discharged in summer, and heat and the operating cost of an air conditioning system are saved in winter, and the part of repeatedly used air (also called circulating air) mixed with the fresh air is pumped back by a fan, so the return air tunnel is also called a circulating air tunnel.
In the coal production process, a large amount of heat is generated by coal seam mining heat release, power equipment heat release, mine water heat release and the like, and finally the heat enters mine return air to be discharged, the exhaust temperature is stabilized between 18 ℃ and 28 ℃, and the relative humidity is over 85 percent. The well mouth of cold and severe cold areas has the requirement of freeze prevention in winter, fresh air entering the well must be heated to more than 2 ℃, so that heating equipment is needed, partial energy is consumed, and an air heat exchanger capable of fully utilizing the waste heat of return air is urgently needed to heat the fresh air at present.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a vertical cross type mine return air heating fresh air heat exchanger and a heat exchange method thereof, which adopt the mine return air to directly heat the fresh air entering the well, thereby not only achieving the aim of preventing the well from freezing, but also effectively utilizing the waste heat in the mine return air, saving the consumption of coal, natural gas and the like, under the condition that the current small and medium coal-fired boilers are gradually limited to use and the natural gas supply is unstable, mine return air is a stable and high-quality waste heat resource, and the fresh air is used for blowing the wind blades imitating the wings of the butterfly to be flapped, and then make and hit the piece striking vibrations fork and produce vibrations to let the inside of heat exchange tube all produce vibrations, can let the more swift landing of the inside condensation of heat exchange tube, also can prevent that the dust that new trend brought in from precipitating at the heat exchange tube surface, can effectively improve heat transfer coefficient like this.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A vertical cross type mine return air heating fresh air heat exchanger comprises a heat exchanger shell, wherein the upper end and the lower end of the heat exchanger shell are respectively communicated with a return air inlet pipeline and a return air outlet pipeline, the inner wall of the heat exchanger shell is fixedly connected with two heat insulation plates, a plurality of groups of heat exchange tubes are fixedly connected between the two heat insulation plates, the inner wall of the heat exchanger shell, which is positioned at the middle position of the two heat insulation plates, is fixedly connected with a partition plate, the side wall of the partition plate is provided with a plurality of ventilation openings matched with the heat exchange tubes, the side walls of the heat exchanger shell, which are positioned at the two sides of the partition plate, are respectively communicated with a fresh air inlet pipeline and a fresh air outlet pipeline, the side wall of the partition plate, which is close to each heat exchange tube, is fixedly connected with a horizontally arranged slide rod through a connecting rod, a slide sleeve is connected on the slide rod in a sliding manner, one end of the slide rod, which is far away from the heat exchange tubes, is rotatably connected with two symmetrically arranged wing-imitating wind vanes, and rotate through the transfer line between two imitative wing wind-actuated piece and the sliding sleeve and be connected, the heat exchange tube is located the both sides lateral wall of slide bar and all passes through connecting rod fixedly connected with vibrations fork, and the both sides lateral wall of sliding sleeve all hits the piece through connecting rod fixedly connected with and vibrations fork matching, the fixed cover that is equipped with of one end that the slide bar is close to the heat exchange tube is equipped with the permanent magnet, and the lateral wall fixedly connected with of sliding sleeve and the magnet ring of permanent magnet matching.
Furthermore, the quantity of heat exchange tube is five groups, and every group heat exchange tube all has independent ventilation heat transfer function, every the lateral wall of heat exchange tube all fixed cover is equipped with a plurality of fins, is in order to increase heat transfer area, strengthens the convection current heat transfer coefficient of new trend side.
Furthermore, the heat exchange tubes are bent to increase the heat exchange effect by increasing the length of the flow channel, and the inner wall of each heat exchange tube is provided with a plurality of grooves, so that condensed water can be drained along the grooves, the heat transfer resistance is reduced, and the heat transfer coefficient is improved.
Furthermore, the inner wall spraying of heat exchange tube has composite coating, and composite coating adopts ceramic base nanometer composite, is used for the pipeline to be anticorrosive on the one hand, and on the other hand is used for reducing the adhesion force of tubular product surface to the condensate drop, promotes the formation that the pearl condenses.
Furthermore, five groups of heat exchange tubes are placed side by side, and the tops of the five groups of heat exchange tubes are arranged along a certain inclination angle, so that the uniformity of return air flowing into the five heat exchange modules is improved.
Furthermore, the structure of the vibration fork is similar to that of a tuning fork, so that strong vibration can be generated.
Furthermore, the magnetism of the permanent magnet is the same as that of the magnet ring, and according to the principle that like poles of the magnets repel each other, when the sliding sleeve slides to the position near the permanent magnet, the permanent magnet generates a repulsive force to the magnet ring to enable the magnet ring to recover to move, so that the magnet ring can reciprocate.
Furthermore, the shape of the wing-imitating wind-driven piece imitates the shape of the wing of a butterfly, and the blowing of the fresh air enables the wing-imitating wind-driven piece to be continuously stirred, so that the sliding sleeve moves.
Furthermore, the heat exchanger shell is arranged at the bottom of the periphery of the return air outlet pipeline in an inclined mode, and therefore the condensed water can flow out conveniently.
A heat exchange method of a vertical cross type mine return air heating fresh air heat exchanger comprises the following steps:
s1, arranging the return air outlet pipeline and the fresh air pipeline vertically, and arranging the heat exchanger at the position where the two vertical pipelines intersect;
and S2, the return air moves upwards along the vertical channel after entering from the inlet, enters the heat exchanger from top to bottom at the top of the heat exchanger, the return air after heat exchange is discharged from the vertical channel, and the fresh air enters from the lower part of the heat exchanger and returns back from the upper part after passing through all the heat exchangers.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme adopts the mine return air to directly heat the fresh air entering the well, thereby not only achieving the aim of preventing the well from freezing, but also effectively utilizing the waste heat in the mine return air, saving the consumption of coal, natural gas and the like, being gradually limited to use in the current middle and small coal-fired boilers, and under the condition of unstable natural gas supply, the mine return air is a stable and high-quality waste heat resource, and the fresh air is utilized to blow the pneumatic sheet imitating the butterfly wing to stir, so that the striking block impacts the vibrating fork to generate vibration, thereby the inside of the heat exchange tube generates vibration, the liquid drops condensed in the heat exchange tube can be more quickly fallen down, the dust brought by the fresh air can be prevented from precipitating on the outer surface of the heat exchange tube, and the heat exchange coefficient can be effectively improved.
(2) The quantity of heat exchange tube is five groups, and every group heat exchange tube all has independent ventilation heat transfer function, and the lateral wall of every heat exchange tube is all fixed the cover and is equipped with a plurality of fins, is in order to increase heat transfer area, strengthens the heat convection coefficient of new trend side.
(3) The heat exchange tubes are bent, so that the heat exchange effect is improved by increasing the length of the flow channel, and the inner wall of each heat exchange tube is provided with a plurality of grooves, so that condensed water can be drained along the grooves, the heat transfer resistance is reduced, and the heat transfer coefficient is improved.
(4) The composite coating is sprayed on the inner wall of the heat exchange tube and is made of a ceramic-based nano composite material, so that the composite coating is used for corrosion prevention of a pipeline on one hand, and is used for reducing the adhesive force of the surface of the pipe to condensate droplets on the other hand, and the formation of bead condensation is promoted.
(5) Five groups of heat exchange tubes are placed side by side, and the tops of the five groups of heat exchange tubes are arranged along a certain inclination angle so as to improve the uniformity of return air flow entering the five heat exchange modules.
(6) The structure of the vibration fork is similar to that of a tuning fork, so that stronger vibration can be generated.
(7) The magnetism of the permanent magnet is the same as that of the magnet ring, and according to the principle that like poles of the magnets repel each other, when the sliding sleeve slides to the position near the permanent magnet, the permanent magnet generates a repulsive force to the magnet ring to enable the magnet ring to recover to move, so that the magnet ring can reciprocate.
(8) The shape of the wing-imitating wind-driven piece imitates the shape of the wings of a butterfly, and the blowing of the fresh air enables the wing-imitating wind-driven piece to be continuously stirred, so that the sliding sleeve moves.
(9) The heat exchanger shell is arranged at the bottom of the periphery of the return air outlet pipeline in an inclined mode, and therefore condensed water can flow out conveniently.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of a portion of the present invention;
FIG. 3 is a diagram showing the motion state of the wing-like wind-actuated mirror of the present invention;
FIG. 4 is a schematic view of a wing-like wind-actuated mirror of the present invention;
FIG. 5 is a schematic cross-sectional view of a heat exchange tube according to the present invention;
FIG. 6 is a schematic diagram of heat exchange according to the present invention;
FIG. 7 is a plan view of a heat exchanger of the present invention;
fig. 8 is a sectional view of fig. 7 taken along line 1-1.
The reference numbers in the figures illustrate:
the heat exchanger comprises a heat exchanger shell 1, a return air inlet pipeline 2, a return air outlet pipeline 3, a heat insulation board 4, heat exchange tubes 5, a groove 501, a composite coating 502, a partition board 6, a ventilation opening 7, a fresh air inlet pipeline 8, a fresh air outlet pipeline 9, a sliding rod 10, a sliding sleeve 11, a wing-imitating wind-driven piece 12, a transmission rod 13, a vibration fork 14, a striking block 15, a permanent magnet 16, a magnet ring 17 and a fin 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-8, a vertical cross type mine return air heating fresh air heat exchanger, referring to fig. 1, includes a heat exchanger shell 1, the upper and lower ends of the heat exchanger shell 1 are respectively communicated with a return air inlet pipeline 2 and a return air outlet pipeline 3, the heat exchanger shell 1 is disposed at the bottom of the periphery of the return air outlet pipeline 3 in an inclined manner, so as to facilitate the outflow of condensed water, the inner wall of the heat exchanger shell 1 is fixedly connected with two heat insulation boards 4, and a plurality of groups of heat exchange tubes 5 are fixedly connected between the two heat insulation boards 4, referring to fig. 5, the number of the heat exchange tubes 5 is five, each group of heat exchange tubes 5 has an independent ventilation and heat exchange function, the outer side wall of each heat exchange tube 5 is fixedly sleeved with a plurality of fins 18, so as to increase the heat exchange area and enhance the convection and heat exchange coefficient of the fresh air side, the shape of the heat exchange tubes 5 is curved, so as to increase the heat exchange effect by increasing the length of the flow channel, the inner wall of each heat exchange tube 5 is provided with a plurality of grooves 501, so that condensed water can be drained along a groove, heat transfer resistance is reduced, and heat transfer coefficient is improved, the inner wall of each heat exchange tube 5 is sprayed with a composite coating 502, the composite coating 502 is made of a ceramic-based nano composite material and is used for preventing corrosion of a pipeline on one hand, and the adhesion of the surface of a pipe to condensed liquid drops is reduced on the other hand, and the formation of bead-shaped condensation is promoted, five groups of heat exchange tubes 5 are arranged side by side, and the tops of the five groups of heat exchange tubes 5 are arranged along a certain inclination angle so as to improve the uniformity of return air flow entering five heat exchange modules;
referring to fig. 2-3, the inner wall of the heat exchanger shell 1 located at the middle position of the two heat insulation boards 4 is fixedly connected with a partition board 6, the side wall of the partition board 6 is provided with a plurality of ventilation openings 7 matched with the heat exchange pipes 5, the side walls of the heat exchanger shell 1 located at the two sides of the partition board 6 are respectively communicated with a fresh air inlet pipeline 8 and a fresh air outlet pipeline 9, fans are respectively arranged in the fresh air inlet pipeline 8 and the fresh air outlet pipeline 9, the side wall of the partition board 6 close to each heat exchange pipe 5 is fixedly connected with a horizontally arranged slide bar 10 through a connecting rod, and the slide bar 10 is slidably connected with a sliding sleeve 11, referring to fig. 4, one end of the slide bar 10 far away from the heat exchange pipes 5 is rotatably connected with two symmetrically arranged wing-like wind blades 12, the shape of the wing-like wind blades 12 is like the wing shape of a butterfly, the blowing of the fresh air causes the wing-like wind blades 12 to continuously flash, thereby causing the sliding sleeve 11 to move, the two wing-like wind-driven pieces 12 are rotatably connected with the sliding sleeve 11 through a transmission rod 13, the two side walls of the heat exchange tube 5, which are positioned at the two sides of the sliding rod 10, are fixedly connected with a vibration fork 14 through a connecting rod, the structure of the vibration fork 14 imitates the structure of a tuning fork, so as to generate strong vibration, the two side walls of the sliding sleeve 11 are fixedly connected with a striking block 15 matched with the vibration fork 14 through a connecting rod, one end of the sliding rod 10, which is close to the heat exchange tube 5, is fixedly sleeved with a permanent magnet 16, the side walls of the sliding sleeve 11 are fixedly connected with a magnet ring 17 matched with the permanent magnet 16, the magnetism of the permanent magnet 16 is the same as that of the magnet ring 17, and according to the principle that like poles repel each other, when the sliding sleeve 11 slides to the position near the permanent magnet 16, the permanent magnet 16 generates a repulsive force to the magnet ring 17 to restore the magnet ring 17, so that the magnet ring 17 can reciprocate.
Referring to fig. 6-8, the heat exchange method includes the following steps:
s1, arranging the return air outlet pipeline and the fresh air pipeline vertically, and arranging the heat exchanger at the position where the two vertical pipelines intersect;
and S2, the return air moves upwards along the vertical channel after entering from the inlet, enters the heat exchanger from top to bottom at the top of the heat exchanger, the return air after heat exchange is discharged from the vertical channel, and the fresh air enters from the lower part of the heat exchanger and returns back from the upper part after passing through all the heat exchangers.
When the reciprocating mechanism works, fresh air entering from a fresh air inlet pipeline 8 blows the wing-like wind blades 12, the wing-like wind blades 12 are stressed and then begin to flare backwards, so as to drive the sliding sleeve 11 to slide towards the heat exchange pipe 5, when the sliding sleeve 11 slides to the maximum repulsive force of the permanent magnet 16 to the magnet ring 17, the beating block 15 just beats the vibrating fork 14, so that the vibrating fork 14 generates vibration, the vibration is further transmitted to the heat exchange pipe 5, at the moment, the sliding sleeve 11 begins to slide backwards, and the continuous blowing of the fresh air enables the wing-like wind blades 12 to flare continuously, so that the sliding sleeve 11 slides back and forth, and the vibrating fork 14 can continuously generate vibration.
The mine return air is adopted to directly heat the fresh air entering the well, so that the aim of preventing the well from freezing is achieved, the waste heat in the mine return air can be effectively utilized, the consumption of coal, natural gas and the like is saved, the use is gradually limited in the current small and medium-sized coal-fired boilers, the natural gas supply is unstable, the mine return air is a stable and high-quality waste heat resource, the fresh air is used for blowing the pneumatic sheets imitating the wings of the butterfly to stir, the striking block is used for striking the vibrating fork to generate vibration, the vibration is generated in the heat exchange tube, the liquid drops condensed in the heat exchange tube can be enabled to slide down more quickly, the dust brought in by the fresh air can be prevented from precipitating on the outer surface of the heat exchange tube, and the heat exchange coefficient can be effectively improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the equivalent replacement or change according to the technical solution and the modified concept of the present invention should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a vertically crossing mine return air heating new trend heat exchanger, includes heat exchanger shell (1), its characterized in that: the heat exchanger comprises a heat exchanger shell (1), wherein the upper end and the lower end of the heat exchanger shell (1) are respectively communicated with a return air inlet pipeline (2) and a return air outlet pipeline (3), the inner wall of the heat exchanger shell (1) is fixedly connected with two heat insulation plates (4), a plurality of groups of heat exchange tubes (5) are fixedly connected between the two heat insulation plates (4), the inner wall of the heat exchanger shell (1) positioned at the middle position of the two heat insulation plates (4) is fixedly connected with a partition plate (6), the side wall of the partition plate (6) is provided with a plurality of ventilation openings (7) matched with the heat exchange tubes (5), the side walls of the heat exchanger shell (1) positioned at the two sides of the partition plate (6) are respectively communicated with a fresh air inlet pipeline (8) and a fresh air outlet pipeline (9), the side wall of the partition plate (6) close to each heat exchange tube (5) is fixedly connected with a horizontally arranged slide bar (10) through a connecting rod, and the slide sleeve (11) is slidably connected on the slide bar (10), the one end that heat exchange tube (5) were kept away from in slide bar (10) is rotated and is connected with imitative wing wind-actuated piece (12) that two symmetries set up, and rotates through transfer line (13) between two imitative wing wind-actuated pieces (12) and sliding sleeve (11) and be connected, the both sides lateral wall that heat exchange tube (5) are located slide bar (10) all shakes fork (14) through connecting rod fixedly connected with, and the both sides lateral wall of sliding sleeve (11) all hits hitting block (15) through connecting rod fixedly connected with and shake fork (14) matching, the fixed cover of one end that slide bar (10) are close to heat exchange tube (5) is equipped with permanent magnet (16), and the magnet ring (17) that the lateral wall fixedly connected with of sliding sleeve (11) and permanent magnet (16) match.
2. The vertical cross mine return air heating fresh air heat exchanger of claim 1, wherein: the quantity of heat exchange tube (5) is five groups, every the lateral wall of heat exchange tube (5) all is fixed the cover and is equipped with a plurality of fins (18).
3. The vertical cross mine return air heating fresh air heat exchanger of claim 1, wherein: the heat exchange tube (5) is bent, and a plurality of grooves (501) are formed in the inner wall of each heat exchange tube (5).
4. The vertical cross mine return air heating fresh air heat exchanger of claim 1, wherein: the inner wall of the heat exchange tube (5) is sprayed with a composite coating (502), and the composite coating (502) is made of a ceramic-based nano composite material.
5. The vertical cross mine return air heating fresh air heat exchanger of claim 2, wherein: five groups of heat exchange tubes (5) are placed side by side, and the tops of the five groups of heat exchange tubes (5) are arranged along a certain inclination angle.
6. The vertical cross mine return air heating fresh air heat exchanger of claim 1, wherein: the structure of the vibrating fork (14) is similar to that of a tuning fork.
7. The vertical cross mine return air heating fresh air heat exchanger of claim 1, wherein: the permanent magnet (16) has the same magnetism as the magnet ring (17).
8. The vertical cross mine return air heating fresh air heat exchanger of claim 1, wherein: the shape of the wing-imitating wind-driven piece (12) is similar to the wing shape of a butterfly.
9. The vertical cross mine return air heating fresh air heat exchanger of claim 1, wherein: the heat exchanger shell (1) is obliquely arranged at the bottom of the periphery of the return air outlet pipeline (3).
10. The heat exchange method for the vertical cross mine return air heating fresh air heat exchanger according to any one of claims 1 to 9, characterized in that: the method comprises the following steps:
s1, arranging the return air outlet pipeline and the fresh air pipeline vertically, and arranging the heat exchanger at the position where the two vertical pipelines intersect;
and S2, the return air moves upwards along the vertical channel after entering from the inlet, enters the heat exchanger from top to bottom at the top of the heat exchanger, the return air after heat exchange is discharged from the vertical channel, and the fresh air enters from the lower part of the heat exchanger and returns back from the upper part after passing through all the heat exchangers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111532374.4A CN114184064B (en) | 2021-12-15 | 2021-12-15 | Vertical cross type mine return air heating fresh air heat exchanger and heat exchange method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111532374.4A CN114184064B (en) | 2021-12-15 | 2021-12-15 | Vertical cross type mine return air heating fresh air heat exchanger and heat exchange method thereof |
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| CN114184064A true CN114184064A (en) | 2022-03-15 |
| CN114184064B CN114184064B (en) | 2024-03-08 |
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Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4018267A (en) * | 1975-01-10 | 1977-04-19 | Dorr-Oliver Incorporated | Cleaning heat exchanger tubes |
| GB2031140A (en) * | 1978-10-09 | 1980-04-16 | Artisan Ind | Heat exchanger with vibrating means therefor |
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| CN114184064B (en) | 2024-03-08 |
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