A condenser device for AS air-suspended oil-free variable frequency centrifugal chiller

Abstract

The present invention belongs to the technical field of condensers for chillers, and in particular relates to a condenser device for an AS gas-suspended oil-free variable frequency centrifugal chiller, comprising an evaporative condenser for the chiller, the evaporative condenser comprising a shell, a plurality of U-shaped condensing tubes are installed in the front and rear horizontal directions on the upper part of the shell; two spray pipes are inserted into the U-shaped openings of the plurality of U-shaped condensing tubes, the two spray pipes are connected to a pump body on the outer side of the bottom of the shell through a main flow guide pipe and a water guide pipe, a plurality of groups of spray holes are provided on each spray pipe, a collecting pool is formed at the bottom of the shell, and air inlet channels are provided on both side walls of the shell above the collecting pool, and a fan is installed in a ventilation tube on the top of the shell; the present invention can increase the contact area between the sprayed cooling water and the U-shaped condensing tube, will not cause waste of cooling water resources, and can also fully perform rapid heat exchange condensation treatment on the medium to be condensed flowing in the U-shaped condensing tube.

Description

Technical Field

[0001] The invention belongs to the technical field of condensers for chillers, and in particular relates to a condenser device for an AS air-suspended oil-free variable frequency centrifugal chiller. Background Art

[0002] The centrifugal chiller uses electricity as a power source. The Freon refrigerant evaporates in the evaporator and absorbs the heat of the refrigerant water to perform refrigeration. The Freon wet vapor after evaporation and heat absorption is compressed by the compressor into a high-temperature and high-pressure gas, which is condensed by the condenser and becomes liquid. It is throttled by the expansion valve and enters the evaporator for recirculation.

[0003] The evaporative condenser mainly uses the evaporation of part of the water to take away the heat released by the condensation process of the gaseous refrigerant. The high-temperature gaseous refrigerant enters the coil from the refrigerant inlet on the upper part of the coil, exchanges heat with the spray water and air outside the coil, and is gradually condensed from gas to liquid, and flows out from the lower refrigerant outlet. The cooling water is pumped to the spray system above the condensing coil by the water pump, and is evenly sprayed on the outer surface of the condensing coil through the water distributor to form a very thin water film. After the spray water and air absorb heat, the temperature rises, and part of the water changes from liquid to gas, and a large amount of heat is taken away by the evaporation latent heat. The rest of the water falls back into the lower water collection tank, and is then pumped into the spray system by the circulating water pump for circulation.

[0004] Most of the existing evaporative condensers used in centrifugal chillers have a spray circulating cooling water arranged above the inside of the condenser shell and below the dehydrator, so as to spray the cooling water on the surface of the condenser tube to condense the medium flowing in the condenser tube. Obviously, since the mechanism for spraying cooling water is laid above the condenser tube, the axial flow fan on the top of the shell will cause the cooling water sprayed downward to flow upward in large quantities, which may easily lead to the cooling water sprayed downward being unable to fully contact the condenser tube, which will not only affect the heat exchange efficiency of the medium flowing in the condenser tube, but also easily cause a large amount of cooling water waste. Summary of the invention

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a condenser device of an AS air-suspended oil-free variable frequency centrifugal chiller, comprising an evaporative condenser for the chiller, wherein the evaporative condenser comprises a shell, wherein a plurality of U-shaped condenser tubes are installed horizontally in the front and rear directions above the shell, wherein the U-shaped openings of the plurality of U-shaped condenser tubes face the side wall of the shell, and the two end openings of the U-shaped condenser tubes extend out of the shell to communicate with an air inlet pipe and a liquid discharge pipe;

[0007] At least two spray pipes are horizontally inserted into the U-shaped mouths of the multiple U-shaped condensers, and the at least two spray pipes are connected to the pump body on the outside of the bottom of the shell through the main diversion pipe and the water diversion pipe. Each of the spray pipes is provided with multiple groups of spray holes along its length direction, and the multiple groups of spray holes are all facing the tube wall direction of the U-shaped condenser. A collecting pool is formed at the bottom of the shell, and air intake channels are provided on both side walls of the shell above the collecting pool, and a fan is installed in the ventilation tube at the top of the shell.

[0008] Furthermore, the lower tube walls of the multiple U-shaped condensers are laid in an inclined state, and the pipe openings of the multiple inclined lower tube walls are connected to the bent drainage pipe through the liquid main pipe, the upper horizontal tubes of the multiple U-shaped condensers are connected to the air inlet pipe through the gas main pipe, and the U-shaped bottoms of the multiple U-shaped condensers are fixedly installed on the side wall of the shell through connecting long strips.

[0009] Furthermore, a movable scraping mechanism is installed in the U-shaped mouth of the plurality of U-shaped condensing tubes, and the movable scraping mechanism includes a driving connection component and a pulling scraping component, and the driving connection component includes a vertical support rod, a screw slider, a supporting strip, a moving strip, a synchronous pulley assembly and a connecting conduit, at least two vertical support rods are vertically fixed between the gas main pipe and the liquid main pipe, and the outer tube wall of at least two of the spray pipes is provided with a spiral groove along its length direction, and a screw slider is sleeved on the outer tube wall of each spray pipe through a screw nut, and one end of the spray pipe is connected to the pipe mouth through a bearing The vertical support rod is rotatably connected to the shell, and the pipe mouth extends out of the shell. The other end pipe mouths of at least two of the spray pipes are rotatably supported by a supporting strip fixed to the bottom of the U-shaped groove of the U-shaped condenser tube. The upper and lower surfaces of the two lead screw sliders are connected by a movable strip, and the upper and lower two movable strips are connected to the pulling and scraping assembly. The outer tube walls of the protruding pipe mouths of at least two of the spray pipes are connected to the output shaft of the servo motor fixed on the outer wall of the shell through a synchronous pulley assembly, and the protruding pipe mouths of at least two of the spray pipes are connected to the diversion main pipe through a rotatably connected connecting conduit.

[0010] Furthermore, the pulling scraper assembly includes a first pull rod, a first scraper ring, a second pull rod, a sliding pull rod, a return spring and a second scraper ring. A plurality of first pull rods are vertically fixed to the upper surface of the movable strip located above, and a first scraper ring is sleeved on the outer tube wall of the upper horizontal tubes of the plurality of U-shaped condensers, and the bottom end of each first scraper ring is connected to each first pull rod. A plurality of second pull rods are vertically fixed to the lower surface of the movable strip located below, and a contraction cavity is opened inside each second pull rod, and a sliding pull rod is slidably inserted in each contraction cavity through a return spring, and a second scraper ring is slidably sleeved on the outer tube wall of the inclined lower tubes of the plurality of U-shaped condensers, and the outer ring wall of the second scraper ring is connected to the sliding pull rod.

[0011] Furthermore, a filter collecting assembly is provided at the left-right symmetrical air inlet channel, and the filter collecting assembly includes a collecting box, a horizontal filter, a vertical filter, a double-rotational screw and a supporting slider. A collecting box is slidably inserted in the left-right symmetrical air inlet channel, and a horizontal filter is horizontally installed in the collecting box. A vertical filter is installed on the vertical side wall of the collecting box located inside the shell, and the mesh diameter of the vertical filter is smaller than the mesh diameter of the horizontal filter. A double-rotational screw is installed in the shell and horizontally above the collecting pool for rotation, and a supporting slider is symmetrically sleeved on the double-rotational screw through a screw nut. A limited blind groove is provided below the inner side wall of the air inlet channel, and a supporting slider is slidably inserted in the limited blind groove, and the upper end surface of the supporting slider is symmetrically connected to the bottom of the collecting box.

[0012] Furthermore, the inner bottom of the collecting box is designed to be concave, and a leakage cavity is horizontally opened at the center of its bottom, a sealing plug plate is slidably and sealably inserted in the leakage cavity, and the outer end of the sealing plug plate is flush with the outer wall of the collecting box, a limit block is vertically fixed to the bottom of the outer wall of the collecting box, and the width of the limit block is greater than the width of the leakage cavity, an extrusion push block is vertically fixed to the lower surface of the sealing plug plate close to the side wall of the shell, and the extrusion push block and the limit block are connected by a reset spring.

[0013] Furthermore, a notch groove is provided at the outermost upper box opening of the collection box, and a sliding slot is provided horizontally inside the notch groove, and the horizontal filter is slidably inserted into the sliding slot through sliding strips fixed on the front and rear side walls, and the outermost end of the horizontal filter is integrally formed with a sealing strip, and the sealing strip is engaged in the notch groove.

[0014] Furthermore, a dehydrator is installed on the top of the shell and below the ventilation tube.

[0015] The present invention has the following beneficial effects:

[0016] 1. The present invention lays a plurality of U-shaped U-shaped condenser tubes in a shell, and at least two spray pipes are inserted into the U-shaped grooves of the plurality of U-shaped condenser tubes. The circulating cooling water in the spray pipes will be sprayed onto the upper and lower tube walls of the U-shaped condenser tube through the plurality of spray holes. When the cooling water is sprayed upward, the cooling water will first contact with the upper horizontal tube of the U-shaped condenser tube, and then rise to the upper dehydrator, so that the cooling water sprayed upward can flow up and down synchronously with the generated wind force to condense the medium flowing in the U-shaped condenser tube, and the cooling water sprayed downward will contact with the tube wall of the lower tube body of the U-shaped condenser tube to continue to condense the continuously flowing medium. This can not only increase the contact area between the sprayed cooling water and the U-shaped condenser tube, without causing waste of cooling water resources, but also fully perform rapid heat exchange condensation treatment on the medium to be condensed flowing in the U-shaped condenser tube.

[0017] 2. The present invention arranges a driving connection component and a pulling and scraping component in the U-shaped notches of multiple U-shaped condensers, and opens a spiral groove on the outer tube wall of the spray pipe. At this time, the spray pipe can not only act as a conduit to spray cooling water onto the tube wall of the U-shaped condenser, but also act as a transmission shaft to drive the lead screw slider to slide along its length direction through the lead screw nut, so that it drives the pulling and scraping component to slide along the tube wall of the U-shaped condenser. It can not only scrape off a large amount of cooling water accumulated on the tube wall of the U-shaped condenser, so that the condenser can perform rapid heat exchange, but also scrape and clean off impurities adhered to the tube wall of the U-shaped condenser to prevent excessive impurities adhered to the tube wall from affecting its heat exchange effect.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure disclosed in the present invention;

[0021] Figure 2 It is a schematic diagram of the internal structure of the shell disclosed in the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of multiple U-shaped condensing tubes disclosed in the present invention;

[0023] Figure 4 It is a structural schematic diagram of the pulling and scraping assembly disclosed in the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the collection box disclosed in the present invention;

[0025] Figure 6 It is a cross-sectional view of the collection box disclosed in the present invention.

[0026] In the figure: 1, housing; 11, air inlet channel; 12, ventilator; 13, position limiting blind groove;

[0027] 2. U-shaped condenser; 21. air inlet pipe; 22. liquid discharge pipe; 23. liquid main pipe; 24. gas main pipe; 25. connecting strip;

[0028] 3. Sprinkler pipe; 31. Spray hole; 32. Main diversion pipe; 33. Water diversion pipe;

[0029] 4. Collection pool;

[0030] 5. Drive connecting assembly; 51. Vertical support rod; 52. Screw slider; 53. Support strip; 54. Moving strip; 55. Synchronous pulley assembly; 56. Connecting conduit;

[0031] 6. Pulling scraper assembly; 61. First pull rod; 62. First scraper ring; 63. Second pull rod; 64. Sliding pull rod; 65. Return spring; 66. Second scraper ring;

[0032] 7. Filter collection assembly; 71. Collection box; 711. Leakage chamber; 712. Notch groove; 713. Sliding slot; 72. Horizontal filter; 73. Vertical filter; 74. Double-rotation screw; 75. Support slider; 76. Sealing plug plate; 77. Limit block; 78. Extrusion push block; 79. Sliding insert; 791. Sealing strip;

[0033] 8. Dehydrator. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0036] See also Figure 1-Figure 6 As shown, the present invention is a condenser device of an AS air-suspended oil-free variable frequency centrifugal chiller, including an evaporative condenser for the chiller, the evaporative condenser including a shell 1, a plurality of U-shaped condenser tubes 2 are installed horizontally in the front and rear directions above the shell 1, the U-shaped openings of the plurality of U-shaped condenser tubes 2 face the side wall direction of the shell 1, and the two end openings of the U-shaped condenser tubes 2 extend out of the shell 1 to connect with the air inlet pipe 21 and the liquid discharge pipe 22;

[0037] At least two spray pipes 3 are horizontally inserted into the U-shaped openings of the plurality of U-shaped condensing tubes 2, and at least two spray pipes 3 are connected to the pump body outside the bottom of the shell 1 through the main flow guide pipe 32 and the water guide pipe 33. Each of the spray pipes 3 is provided with a plurality of spray holes 31 along its length direction, and the plurality of spray holes 31 are all oriented toward the tube wall direction of the U-shaped condensing tube 2. A collecting pool 4 is formed at the bottom of the shell 1, and air inlet channels 11 are provided on both side walls of the shell 1 above the collecting pool 4. A fan is installed in the ventilation tube 12 at the top of the shell 1; a dehydrator 8 is installed at the top of the shell 1 and below the ventilation tube 12;

[0038] Specifically, the present invention lays a plurality of U-shaped U-shaped condenser tubes 2 in a shell body 1, and at least two spray pipes 3 are inserted into the U-shaped grooves of the plurality of U-shaped condenser tubes 2. The circulating cooling water in the spray pipes 3 will be sprayed onto the upper and lower tube walls of the U-shaped condenser tube 2 through the plurality of spray holes 31 provided. When the cooling water is sprayed upward, the cooling water will first contact with the upper horizontal tube of the U-shaped condenser tube 2, and then rise to the upper dehydrator 8, so that the cooling water sprayed upward can flow up and down synchronously with the generated wind force to condense the medium flowing in the U-shaped condenser tube 2, and the cooling water sprayed downward will contact with the tube wall of the lower tube body of the U-shaped condenser tube 2 to continue to condense the continuously flowing medium, which can not only increase the contact area between the sprayed cooling water and the U-shaped condenser tube 2, but also can fully condense the medium flowing in the U-shaped condenser tube 2. The medium to be condensed is subjected to rapid heat exchange condensation treatment, and the condenser is laid in the shell 1 with a U-shaped structure, which increases the flow time of the medium to be condensed in the U-shaped condenser 2, so that the cooling water sprayed countercurrently and downstream can fully and efficiently perform heat exchange treatment on the flowing medium, and the sprayed flowing cooling water will fall into the collection pool 4, and then be connected with the main body through the water pipe on its side wall, so that the cooling water in the collection pool 4 can be recycled, and the air inlet channel 11 opened on the two side walls of the shell 1 will transport the cold air to the shell 1 through the action of the fan, and then cooperate with the cooling water sprayed upward and downward to further improve the heat exchange condensation effect of the medium flowing in the U-shaped condenser 2, and the upward flowing water vapor will be dehydrated by the dehydrator 8. It should be noted that "AS" in the present invention is the abbreviation of the English meaning of air suspension "AIR SUSPENSION".

[0039] In the scheme designed in the present invention, the lower tube walls of the multiple U-shaped condensers 2 are laid in an inclined state, and the pipe openings of the multiple inclined lower tube walls are connected with the bent drain pipe 22 through the liquid main pipe 23, the upper horizontal tubes of the multiple U-shaped condensers 2 are connected with the air inlet pipe 21 through the gas main pipe 24, and the U-shaped bottoms of the multiple U-shaped condensers 2 are fixedly installed on the side wall of the shell 1 through the connecting strips 25; specifically, the lower tube body of the U-shaped condenser 2 is designed to be inclined downward, so that the condensed liquid medium can quickly flow into the liquid main pipe 23 and then be discharged through the drain pipe 22, and the upper tube body adopts a horizontal tube design, so that the gaseous medium diverted to the multiple horizontal tubes through the air inlet pipe 21 and the gas main pipe 24 can slowly flow in the upper horizontal tube of the U-shaped condenser 2 for heat exchange and condensation treatment.

[0040] In the scheme designed by the present invention, a movable scraping mechanism is installed in the U-shaped mouth of the plurality of U-shaped condensing tubes 2, and the movable scraping mechanism includes a driving connection component 5 and a pulling scraping component 6, and the driving connection component 5 includes a vertical support rod 51, a screw slider 52, a supporting strip 53, a moving strip 54, a synchronous pulley assembly 55 and a connecting duct 56, at least two vertical support rods 51 are vertically fixed between the gas main pipe 24 and the liquid main pipe 23, and the outer tube wall of at least two of the spray pipes 3 is provided with a spiral groove along its length direction, and a screw slider 52 is sleeved on the outer tube wall of each spray pipe 3 through a screw nut, and the nozzle at one end of the spray pipe 3 The vertical support rod 51 and the shell 1 are rotatably connected through a bearing, and the pipe mouth extends out of the shell 1. The other end pipe mouths of at least two of the spray pipes 3 are rotatably supported by a support strip 53 fixed to the bottom of the U-shaped groove of the U-shaped condenser tube 2. The upper and lower surfaces of the two lead screw sliders 52 are connected by a movable strip 54. The upper and lower movable strips 54 are connected to the pulling and scraping assembly 6. The outer pipe wall of the extended pipe mouths of at least two of the spray pipes 3 is connected to the output shaft of the servo motor fixed on the outer wall of the shell 1 through a synchronous pulley assembly 55. The extended pipe mouths of at least two of the spray pipes 3 are connected to the main guide pipe 32 through a rotatably connected connecting conduit 56;

[0041] Specifically, at least two spray pipes 3 can be safely and stably installed in the U-shaped condenser 2 with the U-shaped opening facing right through the vertical support rod 51 and the supporting strip 53, so that it can accurately spray cooling water onto the tube wall of the U-shaped condenser 2, and the outer tube wall of the spray pipe 3 is provided with a spiral groove. At this time, the spray pipe 3 can not only act as a conduit to spray cooling water onto the tube wall of the U-shaped condenser 2, but also act as a transmission shaft to drive the lead screw slider 52 to slide along its length direction through the lead screw nut, and then the synchronous pulley assembly 55 works through the rotation of the spray pipe 3 and the sliding of the lead screw slider 52, so that the moving strip 54 fixed on the upper and lower surfaces of the lead screw slider 52 drives the scraper assembly 6 to slide along the tube wall of the U-shaped condenser 2, which can not only scrape and clean a large amount of cooling water accumulated on the tube wall of the U-shaped condenser 2, so that the condenser can perform rapid heat exchange processing, but also can Impurities adhered to the tube wall of the tube 2 are scraped and cleaned to prevent excessive impurities adhered to the tube wall from affecting its heat exchange effect. When the pulling and scraping assembly 6 is working, the rotating spray pipe 3 will further increase the area of ​​cooling water spraying, not only can the tube wall of multiple U-shaped condenser tubes 2 be further heat exchanged and cooled, but the spray pipe 3 at this time can act as a cleaning nozzle, and can also rinse and scrape impurities adhered to the tube wall, thereby further improving the cleaning effect of impurities adhered to the tube wall of the U-shaped condenser tube 2, and the outer pipe mouth of the spray pipe 3 is connected to the diversion main pipe 32 through the rotating connecting conduit 56, so that it will not interfere with the normal entry of cooling water into the rotating spray pipe 3. When the pulling and scraping assembly 6 is not working, the screw slider 52 will slide close to the side of the vertical support rod 51, so that it will not affect the normal spraying of cooling water onto the condenser by the spray pipe 3 for cooling and condensing.

[0042] In the scheme designed by the present invention, the pulling and scraping assembly 6 includes a first pull rod 61, a first scraping ring 62, a second pull rod 63, a sliding pull rod 64, a reset spring 65 and a second scraping ring 66. A plurality of first pull rods 61 are vertically fixed on the upper surface of the movable strip 54 located above, and a first scraping ring 62 is sleeved on the outer tube wall of the upper horizontal tubes of the plurality of U-shaped condensing tubes 2, and the bottom end of each first scraping ring 62 is connected to each first pull rod 61. A plurality of second pull rods 63 are vertically fixed on the lower surface of the movable strip 54 located below, and a contraction cavity is opened inside each second pull rod 63, and a sliding pull rod 64 is slidably inserted in each of the contraction cavities through a reset spring 65. A second scraping ring 66 is slidably sleeved on the outer tube wall of the inclined lower tubes of the plurality of U-shaped condensing tubes 2, and the outer ring wall of the second scraping ring 66 is connected to the sliding pull rod 64.

[0043] Specifically, when the upper movable strip 54 slides back and forth along the length direction of the spray pipe 3, the plurality of first scraping rings 62 can be driven by the plurality of first pull rods 61 to slide along the length direction of the upper horizontal tube, so as to quickly scrape off the water droplets or adhering impurities gathered on the surface of the upper horizontal tube of the U-shaped condenser tube 2; since the lower tube body of the U-shaped condenser tube 2 is tilted downward from left to right, when the lower movable strip 54 slides from right to left, the second scraping ring 66 moves along the inclined tube body from right to left. When sliding to the left, the sliding rod 64 will be pressed into the contraction cavity opened inside the second rod 63, and the return spring 65 will be compressed, so that the height between the second scraper ring 66 and the second rod 63 can be adjusted, which effectively prevents the second scraper ring 66 from sliding and scraping on the inclined tube body. If it is in a rigid connection, the first scraper ring 62 and the second scraper ring 66 will not be able to slide accurately to the two sides of the U-shaped bottom of the U-shaped condenser 2, which will affect the cleaning and scraping effect of the tube wall of the U-shaped condenser.

[0044] In the scheme designed by the present invention, a filter collection assembly 7 is provided at the left-right symmetrical air inlet channel 11, and the filter collection assembly 7 includes a collection box 71, a horizontal filter screen 72, a vertical filter screen 73, a double-rotation screw 74 and a support slider 75. The collection box 71 is slidably inserted in the left-right symmetrical air inlet channel 11, and the horizontal filter screen 72 is horizontally installed in the collection box 71. The vertical side wall of the collection box 71 located inside the shell 1 is installed with a vertical filter screen 73, and the mesh diameter of the vertical filter screen 73 is smaller than the mesh diameter of the horizontal filter screen 72. A double-rotation screw 74 is rotatably installed in the left-right horizontal direction inside the shell 1 and located above the collection pool 4, and a support slider 75 is symmetrically sleeved on the double-rotation screw 74 through a screw nut. A limited blind groove 13 is provided below the inner side wall of the air inlet channel 11, and a support slider 75 is slidably inserted in the limited blind groove 13, and the upper end surface of the support slider 75 is symmetrically connected to the bottom of the symmetrical collection box 71.

[0045] Specifically, in order to prevent the cold air entering the shell 1 from being mixed with particulate impurities and affecting the U-shaped condenser 2, the present invention sets a collection box 71 at the air inlet channel 11. The horizontal filter 72 with large mesh arranged horizontally in the collection box 71 will first intercept the large particulate impurities mixed in the cold air and retain them on the surface of the horizontal filter 72, and a vertical filter 73 is installed on the side box wall of the collection box 71 close to the air inlet channel 11, which can perform secondary interception on the small particulate impurities mixed in the cold air that has been initially intercepted and filtered, and the secondary intercepted impurities will be collected in the collection box 71, and will not affect the vertical filter 73 from discharging the filtered cold air into the shell 1; and when it is necessary to scrape off the impurities adhered to the tube wall of the U-shaped condenser 2, the impurities may be impurities in the incoming cold air that have not been intercepted, or impurities mixed in the cooling water. At this time, the servo motor connected to the double-rotation screw 74 can be controlled to work, so that it drives the symmetrical support slider 7 through the double-rotation screw 74. 5 slides toward the middle of the shell 1, thereby pulling the collection box 71 into the shell 1, and at this time, the symmetrical collection boxes 71 will fit close to each other in the shell 1, and when the first scraper ring 62 and the second scraper ring 66 slide to scrape the adhered impurities, the scraped impurities will fall into the collection box 71 that fits each other below, thereby facilitating the collection and cleaning of the scraped impurities, and preventing the scraped impurities from directly falling into the collection pool 4 and affecting the recycling of cooling water; when the wall of the U-shaped condenser tube 2 is cleaned, the double-rotation lead screw 74 rotates in the opposite direction, and at this time, the symmetrical collection box 71 will slowly slide out of the shell 1. After the supporting slider 75 slides to the limiting blind groove 13, the collection box 71 is in a fixed state, and the operator can take out the scraped impurities from the collection box 71 for cleaning as needed, and at this time, the slid-out collection box 71 continues to act as a filter box for intercepting and filtering the cold air, thereby realizing rapid filtering and interception of impurities mixed in the cold air entering the shell 1.

[0046] In the scheme designed by the present invention, the inner bottom of the collecting box 71 is designed to be concave, and a leakage cavity 711 is horizontally opened at the center of the bottom thereof, a sealing plug plate 76 is inserted in the leakage cavity 711 for sliding sealing, and the outer end of the sealing plug plate 76 is flush with the outer wall of the collecting box 71, a limiting block 77 is vertically fixed to the bottom of the outer wall of the collecting box 71, and the width of the limiting block 77 is greater than the width of the leakage cavity 711, and an extrusion push block 78 is vertically fixed to the lower surface of the sealing plug plate 76 close to the side wall of the shell 1, and the extrusion push block 78 is connected to the limiting block 77 through a reset spring 65;

[0047] Specifically, when the collection box 71 needs to slide into the shell body 1 to collect the scraped impurities, the impurities filtered and intercepted in the collection box 71 are first cleaned and removed, and then the horizontal filter screen 72 can be replaced with a smaller mesh. When the collection box 71 continues to slide into the shell body 1, the extrusion push block 78 on the lower surface will be blocked to the outside of the shell body 1, and then the extrusion push block 78 will push the sealing plug plate 76 to slide in the opposite direction of the sliding collection box 71, and the limit block 77 will slide synchronously with the collection box 71. At this time, the return spring 65 will be compressed, and then when the collection box 71 completely slides into the shell body 1, the leakage chamber 711 at the bottom of the box will open, and the scraped impurities will fall into the collection box 71, and the horizontal filter screen 72 with smaller mesh will scrape the scraped impurities. The impurities removed will be intercepted, and the sprayed cooling water will fall to the recessed bottom of the collecting box 71, and then fall into the collecting pool 4 below through the opened leakage chamber 711 for collection; when the collecting box 71 slides toward the outside of the shell 1, the elastic restoring force of the return spring 65 will keep the extrusion push block 78 in a static state, and then the sealing plug plate 76 will be relatively slidably inserted into the leakage chamber 711 for sealing, so that it will not affect the collection box 71 to filter and intercept the impurity particles mixed in the cold air entering the shell 1, and a guide rod is inserted in the return spring 65, and one end of the guide rod is fixed to the extrusion push block 78, and the other end is slidably inserted into the limit block 77, so that it can guide and support the compressed or elastically restored return spring 65.

[0048] In the scheme designed by the present invention, a notch groove 712 is provided at the outermost upper box opening of the collection box 71, and a sliding slot 713 is provided horizontally inside the collection box 71. The horizontal filter 72 is slidably inserted into the sliding slot 713 through the sliding strips 79 fixed to the front and rear side walls, and the outermost end of the horizontal filter 72 is integrally formed with a sealing strip 791, and the sealing strip 791 is engaged with the notch groove 712; specifically, the horizontal filter 72 can be detachably installed in the collection box 71 through the cooperation of the sliding strip 79 and the sliding slot 713, so as to facilitate the cleaning of the impurities intercepted and accumulated by the horizontal filter 72 and the bottom of the collection box 71, and the sealing strip 791 is engaged with the notch groove 712, so as to install and fix the horizontal filter 72.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A condenser device for an AS air-suspended oil-free variable frequency centrifugal chiller, characterized in that: An evaporative condenser for a chiller, the evaporative condenser comprising a shell (1), a plurality of U-shaped condensing tubes (2) being installed in a horizontal direction in the upper front-to-back direction inside the shell (1), the U-shaped openings of the plurality of U-shaped condensing tubes (2) facing the side wall of the shell (1), and the openings at both ends of the U-shaped condensing tubes (2) extending out of the shell (1) to communicate with an air inlet pipe (21) and a liquid discharge pipe (22); At least two spray pipes (3) are horizontally inserted into the U-shaped openings of the plurality of U-shaped condensing tubes (2), and the at least two spray pipes (3) are connected to the pump body on the outer side of the bottom of the shell (1) through the main flow guide pipe (32) and the water guide pipe (33), and each of the spray pipes (3) is provided with a plurality of spray holes (31) along its length direction, and the plurality of spray holes (31) are all oriented toward the tube wall of the U-shaped condensing tube (2), a collecting pool (4) is formed at the bottom of the shell (1), and air inlet channels (11) are provided on both side walls of the shell (1) above the collecting pool (4), and a fan is installed in the ventilation tube (12) at the top of the shell (1); The lower tube walls of the plurality of U-shaped condenser tubes (2) are laid in an inclined state, and the tube openings of the plurality of inclined lower tube walls are connected to the bent liquid discharge pipe (22) through the liquid main pipe (23), the upper horizontal tubes of the plurality of U-shaped condenser tubes (2) are connected to the air inlet pipe (21) through the gas main pipe (24), and the U-shaped bottoms of the plurality of U-shaped condenser tubes (2) are fixedly mounted on the side wall of the shell (1) through a connecting strip (25); A movable scraping mechanism is installed in the U-shaped opening of the plurality of U-shaped condensing tubes (2), the movable scraping mechanism comprising a driving connection component (5) and a pulling scraping component (6), the driving connection component (5) comprising a vertical support rod (51), a screw slider (52), a supporting strip (53), a movable strip (54), a synchronous pulley assembly (55) and a connecting conduit (56), at least two vertical support rods (51) are vertically fixed between the gas main pipe (24) and the liquid main pipe (23), the outer tube wall of at least two of the spray pipes (3) is provided with a spiral groove along its length direction, and a screw slider (52) is sleeved on the outer tube wall of each spray pipe (3) through a screw nut, and one end of the spray pipe (3) is connected to the outer tube wall through a bearing. The nozzles are rotatably connected to the vertical support rod (51) and the shell (1), and the nozzles extend out of the shell (1); the nozzles at the other ends of at least two of the spray pipes (3) are rotatably supported by a supporting strip (53) fixed to the bottom of the U-shaped groove of the U-shaped condenser tube (2); the upper and lower surfaces of the two lead screw sliders (52) are connected by a movable strip (54); the upper and lower movable strips (54) are connected to a pulling and scraping assembly (6); the outer tube walls of the nozzles of at least two of the spray pipes (3) are connected to the output shaft of a servo motor fixed on the outer wall of the shell (1) through a synchronous pulley assembly (55); and the nozzles of at least two of the spray pipes (3) are connected to the main guide pipe (32) through a rotatably connected connecting conduit (56); The pulling and scraping assembly (6) comprises a first pull rod (61), a first scraping ring (62), a second pull rod (63), a sliding pull rod (64), a return spring (65) and a second scraping ring (66); a plurality of first pull rods (61) are vertically fixed on the upper surface of the movable strip (54) located above; a first scraping ring (62) is sleeved on the outer tube wall of the upper horizontal tube of the plurality of U-shaped condensing tubes (2); and the bottom end of each first scraping ring (62) is connected to each first pull rod (61). The movable strip (54) is connected with a rod (61), and a plurality of second pull rods (63) are vertically fixed on the lower surface of the movable strip (54) located below, and a contraction cavity is opened inside each second pull rod (63), and a sliding pull rod (64) is slidably inserted in each contraction cavity through a return spring (65), and a second scraper ring (66) is slidably sleeved on the outer tube wall of the inclined lower tube of the plurality of U-shaped condenser tubes (2), and the outer ring wall of the second scraper ring (66) is connected to the sliding pull rod (64).

2. The condenser device of the AS air suspension oil-free variable frequency centrifugal chiller according to claim 1 is characterized in that: A filter collection assembly (7) is provided at the bilaterally symmetrical air intake passage (11), the filter collection assembly (7) comprising a collection box (71), a horizontal filter screen (72), a vertical filter screen (73), a double-rotation screw (74) and a supporting slider (75); the collection box (71) is slidably inserted in the bilaterally symmetrical air intake passage (11), and a horizontal filter screen (72) is horizontally installed in the collection box (71); a vertical filter screen (73) is installed on a vertical side wall of the collection box (71) located inside the housing (1), and the vertical filter screen (73) is installed on a vertical side wall of the collection box (71) located inside the housing (1); and the vertical filter screen (74) is installed on a vertical side wall of the collection box (71) located inside the housing (1). The mesh diameter of the horizontal filter (73) is smaller than the mesh diameter of the horizontal filter (72); a double-rotational screw (74) is installed inside the housing (1) and above the collecting tank (4) so ​​as to be rotatable in the left and right horizontal directions; a support slider (75) is symmetrically sleeved on the double-rotational screw (74) via a screw nut; a limited blind groove (13) is provided below the inner side wall of the air inlet channel (11); a support slider (75) is slidably inserted into the limited blind groove (13); and the upper end surface of the symmetrical support slider (75) is connected to the bottom of the symmetrical collecting box (71).

3. The condenser device of the AS air suspension oil-free variable frequency centrifugal chiller according to claim 2 is characterized in that: The inner bottom of the collecting box (71) is designed to be concave, and a liquid leakage cavity (711) is horizontally opened at the center of the bottom. A sealing plug plate (76) is inserted in a sliding and sealing manner in the liquid leakage cavity (711), and the outer end of the sealing plug plate (76) is flush with the outer wall of the collecting box (71). A limiting block (77) is vertically fixed to the bottom of the outer wall of the collecting box (71), and the width of the limiting block (77) is greater than the width of the liquid leakage cavity (711). An extrusion push block (78) is vertically fixed to the lower surface of the sealing plug plate (76) close to the side wall of the shell (1), and the extrusion push block (78) and the limiting block (77) are connected via a return spring (65).

4. The condenser device of the AS air suspension oil-free variable frequency centrifugal chiller according to claim 2 is characterized in that: The outermost upper box opening of the collection box (71) is provided with a notch groove (712), and a sliding slot (713) is horizontally provided inside the collection box; the horizontal filter (72) is slidably inserted into the sliding slot (713) via sliding insert strips (79) fixed to the front and rear side walls; the outermost end of the horizontal filter (72) is integrally formed with a sealing strip (791), and the sealing strip (791) is snap-fitted into the notch groove (712).

5. The condenser device of the AS air suspension oil-free variable frequency centrifugal chiller according to claim 1 is characterized in that: A dehydrator (8) is installed on the top of the housing (1) and below the ventilation cylinder (12).

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