CN116222248A - Evaporative condenser unit and air outlet height control method thereof - Google Patents

Evaporative condenser unit and air outlet height control method thereof Download PDF

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Publication number
CN116222248A
CN116222248A CN202211730913.XA CN202211730913A CN116222248A CN 116222248 A CN116222248 A CN 116222248A CN 202211730913 A CN202211730913 A CN 202211730913A CN 116222248 A CN116222248 A CN 116222248A
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CN
China
Prior art keywords
air outlet
height
fan
rotating speed
evaporative condenser
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CN202211730913.XA
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Chinese (zh)
Inventor
宋斌
吴刚
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Shenzhen Envicool Technology Co Ltd
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Shenzhen Envicool Technology Co Ltd
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Priority to CN202211730913.XA priority Critical patent/CN116222248A/en
Publication of CN116222248A publication Critical patent/CN116222248A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
    • F28B1/02—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
    • F28B1/06—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B11/00—Controlling arrangements with features specially adapted for condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B9/00—Auxiliary systems, arrangements, or devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention relates to the technical field of heat exchange equipment, and particularly discloses an evaporative condenser unit which comprises a shell, a condenser, a spraying device and a fan. Wherein the condenser, the spraying device and the fan are all arranged on the shell, the spraying device is used for spraying liquid to the condenser, and a spraying opening of the spraying device is upward or downward; the two opposite sides of the shell are respectively provided with an air inlet and an air outlet, the fan is positioned between the air inlet and the air outlet to form an air path between the air inlet and the air outlet, the flow direction of the air path is orthogonal with the spraying direction of the spraying device, and the height of the air outlet on the shell is adjustable. The evaporative condenser unit provided by the invention can correspondingly adjust the height of the air outlet according to the rotating speed of the fan so as to better bring out the heat of the evaporated steam, further reduce the real-time wind resistance and improve the real-time energy efficiency of the evaporative condenser unit. The invention also discloses a method for controlling the height of the air outlet of the evaporative condenser unit, which has the technical effects.

Description

Evaporative condenser unit and air outlet height control method thereof
Technical Field
The invention relates to the technical field of heat exchange equipment, in particular to an evaporative condenser unit and an air outlet height control method thereof.
Background
The evaporative condenser is high-efficiency heat exchange equipment, combines the traditional water cooling and air cooling secondary cooling heat exchange process into one, and is widely applied in the industrial cooling process. At present, the evaporative condenser mainly sprays cooling water on the surface of a heat exchanger to form a water film, and the water film evaporates to take away heat released by a medium.
The conventional evaporative condenser is cooled in a countercurrent mode, the flow direction of wind is opposite to the flow direction of spray water, the air inlet side is usually arranged on one side of the shell, the air outlet side is arranged on the top of the shell, and the flow paths of the inlet and the outlet form an arc line or curve. However, the air inlet and the air outlet adopt the arrangement, so that the height of the evaporative condenser is higher on one hand, and the evaporative condenser is easily influenced by the limited height in equipment transportation; on the other hand, the longer wind flow path brings extra windage loss, and in addition, the arc flow path brings partial wind flow and is influenced by centrifugal force and can not effectively enter the space of the heat exchanger, so that the heat exchanger is unevenly heated and partial heat exchanger is ineffective.
In summary, how to effectively solve the problems of high energy consumption caused by high wind resistance of the evaporative condenser unit is a problem that needs to be solved by those skilled in the art at present.
Disclosure of Invention
Therefore, the invention aims to provide an evaporative condenser unit and an air outlet height control method thereof, and the structural design of the evaporative condenser unit can effectively solve the problem of higher energy consumption caused by larger wind resistance of the evaporative condenser unit.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides an evaporative condenser unit, includes the casing, locates condenser in the casing and be used for to the spray set of condenser spraying liquid, spray set's spray gate sets up or down, the both sides that the casing is relative are equipped with air intake and air outlet respectively, just the air outlet is in highly adjustable on the casing, the air intake with be equipped with the fan between the air outlet, in order to the air intake with form the wind path between the air outlet.
Optionally, in the evaporative condenser unit, a strip-shaped window is formed on the shell, a shielding component is arranged on the strip-shaped window to seal different parts of the strip-shaped window, and an opening part of the strip-shaped window forms the air outlet.
Optionally, in the evaporative condenser unit, the shielding assembly includes a shutter, and the shutter has a plurality of blades sequentially arranged along a vertical direction, and each blade is rotatably connected with the housing to be opened or closed.
Optionally, in the above evaporative condenser unit, the shielding assembly further includes a plurality of shielding driving components, and an output end of each shielding driving component is connected to at least one corresponding fan blade respectively, so as to drive the corresponding fan blade to be closed or opened.
Optionally, in the above evaporative condenser unit, the evaporative condenser unit further includes an air outlet portion slidably mounted on the housing, and the air outlet portion corresponds to the strip-shaped window.
Optionally, in the evaporative condenser unit, the air outlet part is an exhaust fan.
Optionally, in the evaporative condenser unit, the casing is provided with a sliding rail, and the air outlet portion is disposed on the sliding rail and can slide along the sliding rail.
Optionally, in the evaporative condenser unit, the evaporative condenser unit further includes a lifting driving component, and an output end of the lifting driving component is connected with the air outlet portion to drive the air outlet portion to lift.
Optionally, in the evaporative condenser unit, the lifting driving component comprises a lifting motor; or alternatively, the process may be performed,
the lifting driving part comprises an electromagnet and a permanent magnet, one of the air outlet part and the shell is provided with the electromagnet, the other one is provided with the permanent magnet, and the magnetic acting force of the electromagnet and the permanent magnet is used for driving the air outlet part to ascend.
The invention provides an evaporative condenser unit which comprises a shell, a condenser, a spraying device and a fan. Wherein the condenser, the spraying device and the fan are all arranged on the shell, the spraying device is used for spraying liquid to the condenser, and a spraying opening of the spraying device is upward or downward; the two opposite sides of the shell are respectively provided with an air inlet and an air outlet, the fan is positioned between the air inlet and the air outlet to form an air path between the air inlet and the air outlet, the flow direction of the air path is orthogonal with the spraying direction of the spraying device, and the height of the air outlet on the shell is adjustable.
By applying the evaporative condenser unit provided by the invention, the spraying opening of the spraying device is arranged upwards or downwards, the air inlet and the air outlet are arranged on the two opposite sides of the shell, the flow direction of the formed air path is orthogonal to the spraying direction, and the path of the air path is shortest, so that the loss of wind resistance is small, and the improvement of the heat exchange efficiency of the evaporative condenser unit is facilitated. In addition, the flow direction of the air path is orthogonal with the spraying direction of the spraying device, and the air flow can effectively enter the space of the condenser, so that the problem that partial air flow brought by the arc flow path cannot effectively enter the space of the condenser due to the centrifugal force is avoided, and the condenser is unevenly heated, namely, the temperature uniformity of the condenser is improved, and the power consumption is reduced under the condition of the same heat exchange area. In addition, the air path formed between the air inlet and the air outlet mainly takes away the heat of the evaporated steam, the evaporated steam is usually water steam, the density of the evaporated steam is smaller than that of air, so that the upward floating acting force can be naturally generated, and the air outlet position can be slightly higher than the air inlet position under the action of the resultant force of the air supply force of the fan and the buoyancy of the evaporated steam. In view of this, this application is highly set up to adjustable with the air outlet, then can be according to the high of the corresponding regulation air outlet of rotational speed size of fan to the heat of better with the vapor is taken out, further reduces real-time windage, improves the real-time energy efficiency of evaporative condenser unit.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an air outlet height control method of an evaporative condenser unit, which is used for any one of the evaporative condenser units and comprises the following steps:
acquiring the rotating speed of the fan;
and adjusting the height of the air outlet according to the rotating speed of the fan.
By applying the method for controlling the height of the air outlet of the evaporative condenser unit, the flow direction of the air path is orthogonal with the spraying direction, and the path of the air path is shortest, so that the loss of wind resistance is small, and the heat exchange efficiency of the evaporative condenser unit is improved. And the height of the air outlet is correspondingly adjusted according to the rotating speed of the fan, so that the heat of the evaporated steam is better brought out, the real-time wind resistance is further reduced, and the real-time energy efficiency of the evaporative condenser unit is improved.
Optionally, in the above method for controlling the height of the air outlet, adjusting the height of the air outlet according to the rotation speed of the fan specifically includes:
when the rotating speed of the fan is increased, the height of the air outlet is reduced; when the rotating speed of the fan is reduced, the height of the air outlet is increased.
Optionally, in the method for controlling the height of the air outlet, the method further includes:
the air outlet is arranged at a preset initial height;
when the rotating speed of the fan is increased, the height of the air outlet is reduced; when the rotating speed of the fan is reduced, the height of the air outlet is increased, and the method specifically comprises the following steps:
judging whether the real-time load is not smaller than the target load, if so, reducing the rotating speed of the fan, and controlling the air outlet to rise by a corresponding height according to the reduction of the rotating speed of the fan; otherwise, the rotating speed of the fan is increased, and the air outlet is controlled to reduce the corresponding height according to the increase of the rotating speed of the fan.
Optionally, in the method for controlling the height of the air outlet, the method further includes:
when the rotating speed of the fan is maintained in a preset rotating speed range, controlling the height of the air outlet to be the preset initial height.
Optionally, in the above method for controlling the height of the air outlet, when the rotation speed of the fan increases, reducing the height of the air outlet specifically includes:
when the rotating speed of the fan is increased, the height of the air outlet is reduced until the height of the air outlet is consistent with the height of the air inlet;
when the rotating speed of the fan is reduced, the height of the air outlet is increased, and the method specifically comprises the following steps:
and when the rotating speed of the fan is reduced, the height of the air outlet is increased until the maximum height of the air outlet is reached.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an evaporative condenser unit according to an embodiment of the present invention;
FIG. 2 is a schematic view of an evaporative condenser unit according to another embodiment of the present invention;
FIG. 3 is a schematic view of the structure of the blind of FIG. 2;
FIG. 4 is a side view of FIG. 3;
FIG. 5 is a schematic diagram of a force analysis at the air outlet;
fig. 6 is a flow chart of an air outlet height control method according to an embodiment of the invention.
The figures are marked as follows:
the device comprises a shell 1, a condenser 2, a spraying device 3, a fan 4, an exhaust fan 41, a liquid collecting tank 5, a liquid pump 6, a pipeline 7, a water deflector 8, an air inlet 11, an air outlet 12, a strip-shaped window 13, a louver 14, fan blades 141, a rotating shaft 142, a sliding rail 15, a radiating pipe 21 and a spraying outlet 31.
Detailed Description
The embodiment of the invention discloses an evaporative condenser unit and an air outlet height control method thereof, which are used for reducing wind resistance of the evaporative condenser unit and improving energy efficiency of the evaporative condenser unit.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The application provides an evaporative condenser unit is mainly through the control to its air inlet and outlet direction and height to with the direction cooperation of spraying liquid, reduce the windage, improve the energy efficiency. Other specific structures of the evaporative condenser unit can refer to the arrangement of the conventional evaporative condenser unit, and will not be described again.
In some embodiments, referring to fig. 1, the evaporative condenser unit provided by the present invention includes a housing 1, a condenser 2, a spray device 3, and a fan 4. Wherein, condenser 2, spray set 3 and fan 4 all locate casing 1, and spray set 3 is used for spraying liquid to condenser 2, and spray set 3's spray mouth sets up or down, then spray the direction along vertical, and it is understood that spray the direction along vertical and not be limited to the resultant force that sprays along vertical, and the resultant force orthogonal decomposition is horizontal component and vertical component when, and the resultant force of spray the direction is great at the component of vertical direction relative horizontal direction, all can be considered as vertically. The two opposite sides on the shell 1 are respectively provided with an air inlet 11 and an air outlet 12, the top end of the shell 1 is closed, and the fan 4 is positioned between the air inlet 11 and the air outlet 12 to form an air path between the air inlet 11 and the air outlet 12, so that the flow direction of the air path is transverse, and the flow direction of the air path is orthogonal to the spraying direction of the spraying device 3. It should be noted that, here, the direction of spraying of the spraying device is vertical, that is, when spraying up or spraying down, the air outlet 12 and the air inlet 11 are respectively disposed on the front and rear side walls or the left and right side walls of the housing, and the height of the air outlet 12 on the housing 1 is adjustable, that is, the height of the air outlet 12 can be correspondingly adjusted according to the rotation speed of the fan 4.
By applying the evaporative condenser unit provided by the invention, the spraying direction is vertical, the air inlet 11 and the air outlet 12 are arranged on two opposite sides of the shell 1, the flow direction of the formed air path is orthogonal to the spraying direction, and the air path is shortest, so that the loss of wind resistance is small, and the heat exchange efficiency of the evaporative condenser unit is improved. In addition, the flow direction of the air path is orthogonal with the spraying direction of the spraying device 3, and the air flow can effectively enter the space of the condenser 2, so that the problem that partial air flow brought by the arc flow path cannot effectively enter the space of the condenser 2 due to the centrifugal force is avoided, the uneven heating of the condenser 2 is caused, namely, the temperature uniformity of the condenser 2 is improved, and the power consumption is reduced under the condition of the same heat exchange area.
In addition, the air path formed between the air inlet 11 and the air outlet 12 mainly takes away the heat of the vapor, and the vapor is usually vapor, and the density of the vapor is smaller than that of air, so that the upward floating acting force can be naturally generated, and the air outlet position can be slightly higher than the air inlet position under the action of the resultant force of the air supply force of the fan 4 and the buoyancy of the vapor. In view of this, set up the height of air outlet 12 to adjustable in this application, then can be according to the corresponding height of adjusting air outlet 12 of the rotational speed size of fan 4 to the heat of better with the vapor is taken out, further reduces real-time windage, improves the real-time energy efficiency of evaporative condenser unit.
Furthermore, the top of the shell 1 is closed, and the air inlet and outlet at two sides are arranged, so that even if the wind force is small or the fan 4 is stopped, the steam evaporated by the spraying device 3 can be more easily and directly lifted to the top of the shell 1 and can fall back after being condensed at the top, thereby reducing the steam quantity flowing out along with the air outlet 12 and achieving the effect of saving water. In addition, the air inlet 11 and the air outlet 12 are disposed at two opposite sides of the housing 1, and the fan 4 may be disposed on a side wall of the housing 1 correspondingly. As the arrangement, the transverse space is better utilized, the occupied demand of the whole evaporative condenser unit on the height space is reduced, and the height of the evaporative condenser unit is reduced, so that the evaporative condenser unit is not easily affected by limited height in transportation.
In some embodiments, referring to fig. 2-4, a strip-shaped window 13 is formed on the housing 1, and a shielding component is disposed on the strip-shaped window 13 to seal different portions of the strip-shaped window 13, and an air outlet 12 is formed at an open portion of the strip-shaped window 13. The strip-shaped window 13 provides a space for the movement of the air outlet 12, and the shielding component shields and seals the different height parts of the strip-shaped window 13, so that the remaining open part can be used as the air outlet 12. The shielding components shield different positions, so that the height of the air outlet 12 can be continuously adjusted. In other embodiments, the casing 1 may be provided with a plurality of through holes, the plurality of through holes are distributed along the up-down direction, and the shielding component is detachably connected to different through holes, so that the unshielded through holes can be used as the air outlet 12, thereby realizing the adjustment of the height of the air outlet 12.
In some embodiments, the shutter assembly includes a shutter 14, and the shutter 14 has a plurality of blades 141 arranged in sequence in a vertical direction, and each blade 141 is rotatably connected to the housing 1 to be opened or closed. That is, the arrangement direction of the plurality of blades 141 is vertical, so that when different blades 141 are opened or closed, the shielding seal of the different height portions of the strip-shaped window 13 can be realized. It is to be understood that each fan blade 141 is rotatably connected to the housing 1, or the fan blades 141 may be directly connected to the housing 1 through a rotating shaft 142, or a connecting frame may be provided, where each fan blade 141 is connected to the connecting frame through the rotating shaft 142, and the connecting frame is fixed to the housing 1. The shutter 14 is adopted for shielding, so that the structure is simple, and the sealing performance is good. In other embodiments, the shielding assembly may also be made of a flexible material, such as a rubber-like soft connection material, to partially shield the strip-shaped window 13.
In some embodiments, the shielding assembly further includes a plurality of shielding driving components, and an output end of each shielding driving component is respectively connected with the corresponding at least one fan blade 141 to drive the corresponding fan blade 141 to be closed or opened. The shutter 14 is combined with the shielding driving part to realize the opening or closing of the leaf window, each leaf 141 can be driven by a single shaft, that is, each leaf 141 is independently controlled to realize the opening or shielding function, and a plurality of leaves 141 can be combined to realize synchronous opening or shielding. Specifically, the shielding driving part may adopt a motor, and the fan blade 141 is driven to rotate by the motor. In other embodiments, the shielding driving part may also adopt a telescopic cylinder, and the fan blade 141 is pushed to rotate by the telescopic cylinder.
In some embodiments, the casing 1 is slidably provided with an air outlet corresponding to the strip-shaped window 13, and it is understood that the air outlet is provided with an outlet for air to be discharged. The air outlet part slides up and down along the shell 1, the part of the strip-shaped window 13 corresponding to the air outlet part is the air outlet 12, and the gap between the air outlet part and the rest strip-shaped window 13 is shielded and sealed by the shielding component, so that the air flow can be discharged only by the air outlet part, and the air height can be regulated by controlling the height of the air outlet part. The air outlet part is slidably arranged on the shell 1, so that the height of the air outlet 12 can be continuously adjusted.
In some embodiments, the air outlet is an exhaust fan 41. That is, the fan 4 adopts the exhaust fan 41 arranged at the air outlet 12, the exhaust air of the exhaust fan 41 forms an air path, and the height of the air outlet 12 is adjusted by adjusting the height of the exhaust fan 41. After the exhaust fan 41 moves, the gap of the reserved strip-shaped window 13 is closed by the fan blade 141 to prevent air flow leakage; when the exhaust fan 41 moves to the set position, the fan blades 141 corresponding to the exhaust fan 41 are opened to allow the air flow to pass smoothly. In the case that the shutter 14 is used as the shielding assembly, the size of the shutter 14 may be larger than that of the exhaust fan 41. In other embodiments, the fan 4 may be a fan disposed on the air inlet side of the air duct, or the fan 4 may be disposed at other positions of the air duct, so that the air inlet 11 may be enabled to enter, and the air is discharged through the air outlet 12 after flowing through the air duct, which is specifically set correspondingly according to factors such as overall layout of the unit. The corresponding air outlet portion may be a box structure or a tubular structure having an outlet.
In some embodiments, the casing 1 is provided with a sliding rail 15, and the air outlet portion is provided on the sliding rail 15 and can slide along the sliding rail 15. It can be appreciated that the sliding rail 15 is arranged along the vertical direction, so that the sliding rail 15 can limit and guide the movement of the air outlet part, and the lifting of the air outlet part is stable.
In some embodiments, the evaporative condenser unit further comprises a lifting driving component, and an output end of the lifting driving component is connected with the air outlet part to drive the air outlet part to lift. The height of the air outlet part can be automatically adjusted through the lifting driving part, so that the lifting driving part correspondingly drives the air outlet part to lift according to the rotating speed of the fan 4, and particularly, when the rotating speed of the fan 4 is increased, the lifting driving part reduces the height of the air outlet 12; when the rotation speed of the blower 4 decreases, the elevation driving part increases the height of the air outlet 12. In other embodiments, the height of the air outlet portion may be manually adjusted, for example, after the air outlet portion is moved to a suitable height, the air outlet portion may be maintained at the current height by a locking member such as a latch.
In some embodiments, the lift drive member comprises a lift motor, which may be a stepper motor in particular. The motor drives the air outlet part to lift, a specific motor can be connected with the air outlet part through the screw rod, and the control precision is high. In other embodiments, the lifting drive member may also include a telescopic cylinder such as an air cylinder, a hydraulic cylinder, or the like.
In some embodiments, the lifting driving component comprises an electromagnet and a permanent magnet, one of the air outlet part and the shell 1 is provided with the electromagnet, the other is provided with the permanent magnet, and the magnetic acting force of the electromagnet and the permanent magnet is used for driving the air outlet part to ascend. The descending of the air outlet part can be realized by means of self gravity, and the magnitude and the acting force direction of the magnetic acting force between the electromagnet and the permanent magnet can be adjusted by controlling the magnitude and the direction of the current of the electromagnet. Specifically, the electromagnet or the permanent magnet is arranged at the top of the strip-shaped window 13, when the air outlet part needs to be driven to ascend, the electromagnet is electrified and generates a magnetic adsorption effect with the permanent magnet, so that the air outlet part is adsorbed to a set position, and when the height of the air outlet part needs to be reduced, the electromagnet can be powered off, and the air outlet part automatically falls down by means of gravity.
In some embodiments, the spray device 3 is disposed above the condenser 2 and the spray outlet 31 of the spray device 3 is disposed downward. The air inlet 11 is arranged on the side wall of the shell 1, and the air outlet 12 is arranged on the side wall of the other opposite side of the shell 1, so that the flow direction of the air path is orthogonal to the spraying direction of the spraying device 3.
In some embodiments, the spray device 3 is disposed below at least a portion of the condenser 2 and the spray outlet 31 of the spray device 3 is disposed upward. It can be understood that the partial condenser 2 comprises a plurality of layers of coils of the condenser 2, the spraying device 3 is arranged below the topmost coil or any coil below the topmost coil, and at least two condensers 2 which are vertically and alternately distributed in the shell 1, and then the spraying device 3 is arranged below the topmost condenser 2 or any condenser 2 below the topmost coil. The condenser 2 corresponding to at least part of the condenser located above the spraying device 3 forms a spraying mode from bottom to top, and the flow direction of wind is transverse, so that the formed wind path is shortest, the wind resistance loss is minimum, and the heat exchange efficiency of the evaporative condenser unit is improved. In addition, the orthorhombic mode also avoids the problem that partial wind flow brought by an arc flow path cannot effectively enter the space of the condenser 2 due to the centrifugal force effect, so that the condenser 2 is unevenly heated.
In some embodiments, the spray device 3 is disposed below the integral condenser 2 and the spray outlet 31 of the spray device 3 is disposed upward, the air inlet 11 is disposed on one side of the housing 1, and the air outlet 12 is disposed on the opposite side of the housing 1. The whole spray mode from bottom to top is formed, and the flow direction of wind is transverse. The spray device 3 is arranged below the integral condenser 2, and the lower structure of the spray device is less or no other parts exist, so that maintenance in the use process, such as replacement of a new spray device 3, or disassembly of the spray device 3 for maintenance, etc., is facilitated.
In some embodiments, the heat dissipation structure density of the condenser 2 near the air inlet 11 is less than the heat dissipation structure density near the air outlet 12. Taking the case that the air inlet 11 is arranged on the left side of the casing 1 as an example, in order to avoid that the left side pipeline 7 of the condenser 2 blocks the right side pipeline 7, the condenser 2 preferably adopts a structure with left and right dense, that is, the distribution density of the heat dissipation structures such as the heat dissipation pipes 21 and the heat dissipation fins of the condenser 2 adopts a side close to the air inlet 11, such as a side with large left side density and a side close to the air outlet 12, such as a side with small right side density, and the specific heat dissipation structure density can be gradually reduced from left to right. In this embodiment, the arrangement of the air inlet 11 and the air outlet 12, and the arrangement of the spraying device 3 may refer to the above embodiments, and will not be described herein. It will be appreciated that for the right side air intake mode, the heat dissipation structure density on the right side of the condenser 2 is correspondingly set to be smaller than that on the left side.
In some embodiments, the condenser 2 comprises at least one of a tube-fin radiator, a tube radiator, a plate radiator. The structure and working principle of the above-mentioned one or more condensers 2 selected according to the factors of the corresponding load and application environment of the condensers 2, such as the specific tube fin radiator, tube radiator, and plate radiator, can refer to the prior art, and will not be described here again.
In some embodiments, a sump 5 is also provided at the bottom end of the housing 1 to receive the falling spray liquid. By providing the liquid collecting tank 5, the falling spray liquid can be collected so as to be reused. In other embodiments, a drain port may be provided at the bottom end of the housing 1 to collect and drain the falling spray liquid.
In some embodiments, the liquid collecting tank 5 is communicated with the spraying device 3 through a pipeline 7, and a liquid pump 6 for pumping the spraying liquid in the liquid collecting tank 5 to the spraying device 3 is arranged in the pipeline 7. Then a loop is formed through the liquid collecting tank 5, the liquid pump 6 and the spraying device 3, the liquid pump 6 pumps the spraying liquid in the liquid collecting tank 5 to the spraying device 3, the spraying liquid is sprayed out from a spraying outlet 31 of the spraying device 3, and condensate which finally falls down after full action with the condenser 2 is collected in the liquid collecting tank 5, so that the cyclic utilization of the spraying liquid is realized, and the spraying device 3 does not need to be externally connected with a liquid supply system. In other embodiments, the spraying device 3 may also be provided with an interface, and is externally connected with a liquid supply system in operation, and the liquid supply system also comprises a liquid tank and a liquid pump 6, and spraying liquid in the liquid tank is pumped to the spraying device 3 through the liquid pump 6.
In some embodiments, a water deflector 8 is also included between the air outlet 12 and the condenser 2. By providing the water deflector 8, the vapor is condensed after passing through the water deflector 8, becomes liquid again, and can flow back to the condenser 2. Therefore, by the arrangement of the water baffle device 8, the spray liquid is effectively saved.
The application also provides an air outlet height control method of the evaporative condenser unit, which is used for any one of the evaporative condenser units in the embodiment, and in one embodiment, the air outlet height control method comprises the following steps:
s1: acquiring the rotating speed of a fan;
s2: and adjusting the height of the air outlet according to the rotating speed of the fan.
In this embodiment, the height of the air outlet is not fixed, but is adjusted according to the rotation speed of the blower. By applying the method for controlling the height of the air outlet of the evaporative condenser unit, the flow direction of the air path is orthogonal with the spraying direction, and the path of the air path is shortest, so that the loss of wind resistance is small, and the heat exchange efficiency of the evaporative condenser unit is improved. And the height of the air outlet is correspondingly adjusted according to the rotating speed of the fan, so that the heat of the evaporated steam is better brought out, the real-time wind resistance is further reduced, and the real-time energy efficiency of the evaporative condenser unit is improved.
In some embodiments, step S2 specifically includes:
when the rotating speed of the fan is increased, the height of the air outlet is reduced; when the rotating speed of the fan is reduced, the height of the air outlet is increased.
That is, the rotational speed of the blower is inversely related to the height of the air outlet. Referring to fig. 5, when the rotation speed of the fan is high, the flow speed of the corresponding air flow is high, q=v×s, where Q is the air volume, V is the running speed of the air flow, S is the inlet area or the windward area, and the component of the resultant force of the outlet wind direction in the inlet direction is relatively large, and the inlet wind, the heat exchanger and the outlet wind are more nearly collinear; when the rotating speed of the fan is low, the corresponding airflow flowing speed is low, at the moment, the evaporation buoyancy is slightly larger than the ratio of the evaporation buoyancy in the resultant force direction of the outlet wind direction, and the optimal air outlet is required to move upwards. That is, the higher the rotating speed of the fan, the smaller the influence of the buoyancy of the evaporated steam on the airflow is, so the lower the height of the required air outlet is correspondingly. The height of the specific air outlet corresponding to the specific fan under different rotating speeds can be obtained by reading a pre-stored corresponding relation table of the fan rotating speed to the height of the air outlet or a functional relation between the fan rotating speed and the height of the air outlet, wherein the functional relation between the fan rotating speed and the height of the air outlet can be obtained through data fitting.
In some embodiments, referring to fig. 6, the method for controlling the height of the air outlet includes:
s21: the air outlet is arranged at a preset initial height;
s22: judging whether the real-time load is not less than the target load, if so, executing the step S23, otherwise, executing the step S25;
s23: reducing the rotating speed of the fan;
s24: controlling the air outlet to rise by a corresponding height according to the reduction of the rotating speed of the fan;
s25: the rotating speed of the fan is increased;
s26: and controlling the air outlet to reduce the corresponding height according to the increase of the rotating speed of the fan.
The initial position of the air outlet is arranged at a preset initial height Hb, hmax is more than or equal to Hb and more than or equal to Hc, hmax is the highest position of the air outlet, and Hc is the lowest position of the air outlet; setting the height of an air inlet to be Hin, wherein Hc is more than or equal to Hin; and if the real-time load is Pn, the target load is Pt, and the load and the rotating speed of the fan are in a direct proportion relation, judging whether the real-time load Pn is not smaller than the target load Pt, if so, reducing the rotating speed of the fan and correspondingly increasing the height of the air outlet, otherwise, increasing the rotating speed of the fan and correspondingly reducing the height of the air outlet. When the power is on, the evaporative condenser unit works, the condensing load temperature is continuously increased, the fan works, and the rotating speed of the fan is continuously adjusted towards the target value. The rotating speed of the fan is adjusted through the real-time load, and the height of the air outlet is correspondingly adjusted, so that the real-time energy efficiency of the evaporative condenser unit is improved.
In some embodiments, when the rotation speed of the fan is increased, the height of the air outlet is reduced, which specifically includes: when the rotating speed of the fan is increased, the height of the air outlet is reduced until the height of the air outlet is consistent with the height of the air inlet; when the rotational speed of fan reduces, rise the height of air outlet, specifically include: when the rotating speed of the fan is reduced, the height of the air outlet is increased until the maximum height of the air outlet is reached. In this embodiment, as the rotational speed of the blower changes, the position of the air outlet is adjusted constantly or intermittently to correspond to the rotational speed of the blower. Specifically, when the evaporative condenser unit is powered off, the air outlet is restored to the preset initial height.
In some embodiments, the method for controlling the height of the air outlet further comprises: when the rotating speed of the fan is maintained in a preset rotating speed range, the height of the air outlet is controlled to be the preset initial height. And when the fan reaches the set target value and is stable, the position of the air outlet is adjusted to the preset initial height. The preset rotating speed range can be specifically a range of 40% -85% of the maximum rotating speed of the fan. The preset initial height may be specifically a position from one half to one third of the highest position of the air outlet. Through the arrangement, the real-time energy efficiency of the evaporative condenser unit can be considered, and the operation cost is reduced.
In some embodiments, the height of the air outlet may also be adjusted in combination with at least one of the flow rate of the shower, the flow length and flow resistance of the condenser, and the travel between the air inlet and the air outlet.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (14)

1. The utility model provides an evaporative condenser unit, includes casing (1), locates condenser (2) in casing (1) and be used for to spray set (3) of condenser (2) liquid, its characterized in that, spray set (3) spray opening up or down set up, the both sides that casing (1) are relative are equipped with air intake (11) and air outlet (12) respectively, just air outlet (12) are in height-adjustable on casing (1), air intake (11) with be equipped with fan (4) between air outlet (12) in order to air intake (11) with form the wind path between air outlet (12).
2. Evaporative condenser unit according to claim 1, characterized in that a strip-shaped window (13) is provided on the housing (1), a shielding assembly is provided on the strip-shaped window (13) to seal different parts of the strip-shaped window (13), and the open part of the strip-shaped window (13) forms the air outlet (12).
3. An evaporative condenser unit according to claim 2, wherein the shutter assembly includes a shutter (14), the shutter (14) having a plurality of blades (141) arranged in sequence in a vertical direction, each blade (141) being rotatably connected to the housing (1) to be opened or closed.
4. The evaporative condenser set according to claim 2, wherein the shielding assembly further comprises a plurality of shielding driving members, and an output end of each shielding driving member is connected to a corresponding at least one of the fan blades (141) to drive the corresponding fan blade (141) to be closed or opened, respectively.
5. An evaporative condenser unit according to any one of claims 2-4, further comprising an air outlet slidably mounted to the housing (1), and wherein the air outlet corresponds to the strip-shaped window (13).
6. An evaporative condenser assembly according to claim 5, wherein the air outlet is an exhaust fan (41).
7. Evaporative condenser unit according to claim 5, characterized in that the housing (1) is provided with a sliding rail (15), the air outlet being provided in the sliding rail (15) and being able to slide along the sliding rail (15).
8. The evaporative condenser unit according to claim 5, further comprising a lift driving member, wherein an output end of the lift driving member is connected to the air outlet portion to drive the air outlet portion to lift.
9. The evaporative condenser assembly set forth in claim 8, wherein the elevation drive member comprises an elevation motor; or alternatively, the process may be performed,
the lifting driving part comprises an electromagnet and a permanent magnet, one of the air outlet part and the shell (1) is provided with the electromagnet, the other one is provided with the permanent magnet, and the magnetic acting force of the electromagnet and the permanent magnet is used for driving the air outlet part to ascend.
10. An air outlet height control method for an evaporative condenser unit according to any one of claims 1-9, comprising:
acquiring the rotating speed of the fan;
and adjusting the height of the air outlet according to the rotating speed of the fan.
11. The method for controlling the height of an air outlet according to claim 10, wherein the adjusting the height of the air outlet according to the rotation speed of the fan comprises:
when the rotating speed of the fan is increased, the height of the air outlet is reduced; when the rotating speed of the fan is reduced, the height of the air outlet is increased.
12. The air outlet height control method according to claim 11, further comprising:
the air outlet is arranged at a preset initial height;
when the rotating speed of the fan is increased, the height of the air outlet is reduced; when the rotating speed of the fan is reduced, the height of the air outlet is increased, and the method specifically comprises the following steps:
judging whether the real-time load is not smaller than the target load, if so, reducing the rotating speed of the fan, and controlling the air outlet to rise by a corresponding height according to the reduction of the rotating speed of the fan; otherwise, the rotating speed of the fan is increased, and the air outlet is controlled to reduce the corresponding height according to the increase of the rotating speed of the fan.
13. The air outlet height control method according to claim 12, further comprising:
when the rotating speed of the fan is maintained in a preset rotating speed range, controlling the height of the air outlet to be the preset initial height.
14. The method of claim 11, wherein reducing the height of the air outlet when the rotational speed of the blower increases, comprises:
when the rotating speed of the fan is increased, the height of the air outlet is reduced until the height of the air outlet is consistent with the height of the air inlet;
when the rotating speed of the fan is reduced, the height of the air outlet is increased, and the method specifically comprises the following steps:
and when the rotating speed of the fan is reduced, the height of the air outlet is increased until the maximum height of the air outlet is reached.
CN202211730913.XA 2022-12-30 2022-12-30 Evaporative condenser unit and air outlet height control method thereof Pending CN116222248A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211730913.XA CN116222248A (en) 2022-12-30 2022-12-30 Evaporative condenser unit and air outlet height control method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211730913.XA CN116222248A (en) 2022-12-30 2022-12-30 Evaporative condenser unit and air outlet height control method thereof

Publications (1)

Publication Number Publication Date
CN116222248A true CN116222248A (en) 2023-06-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211730913.XA Pending CN116222248A (en) 2022-12-30 2022-12-30 Evaporative condenser unit and air outlet height control method thereof

Country Status (1)

Country Link
CN (1) CN116222248A (en)

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