CN211852227U - Variable frequency speed regulation exhaust fan - Google Patents
Variable frequency speed regulation exhaust fan Download PDFInfo
- Publication number
- CN211852227U CN211852227U CN202020395826.3U CN202020395826U CN211852227U CN 211852227 U CN211852227 U CN 211852227U CN 202020395826 U CN202020395826 U CN 202020395826U CN 211852227 U CN211852227 U CN 211852227U
- Authority
- CN
- China
- Prior art keywords
- heat dissipation
- box
- frequency speed
- exhaust fan
- control box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to a fan technical field discloses a variable frequency speed governing exhaust fan, including the variable frequency speed governing system of exhaust fan and exhaust fan, the variable frequency speed governing system includes mutually supporting control box, heat dissipation case and converter, and the heat dissipation case is fixed in the control box, and the variable frequency speed governing controlling means of converter is fixed at the heat dissipation incasement and is connected with the exhaust fan. The control box is provided with a cooling fan and a cooling opening, the cooling box is provided with a pull door, the variable frequency speed regulation control device is fixed on the inner wall of the cooling box, and the bottom of the pull door is provided with a limiting part. The utility model replaces a fan valve to control the air quantity, reduces the abrasion caused by the continuous opening and closing of the valve and reduces the failure rate; when in operation, the fan valve is fully opened, so that the vibration and abrasion of the air duct are reduced, and the aim of saving energy is fulfilled; the structure is simple and reasonable, the heat dissipation problem is effectively solved, the heat dissipation effect is improved, the frequency conversion speed regulation control device can be protected in a double mode, and the detection and maintenance are convenient.
Description
Technical Field
The utility model relates to a fan technical field especially relates to a Variable Frequency Speed Governing (VFSG) exhaust fan.
Background
The air supply quantity required by the mechanical shaft kiln is different at different stages in the cement production process, so that the conditions of overlarge air quantity and overhigh air pressure often occur during production, the original operation workers generally adjust the air inlet quantity according to the opening and closing degree of a fan valve at different stages of the production process, but the operation can not ensure the quality of products, the conditions of energy waste and overlarge noise exist, the shutdown operation is required during equipment maintenance, and the time required by production is greatly prolonged. The existing method is to add a variable frequency speed control system to the exhaust fan to achieve the effect of changing the rotating speed and the ventilation quantity of the motor, but because the variable frequency speed control device of a frequency converter of the variable frequency speed control system also needs to dissipate heat, and the cement production environment is complex and easily has adverse effects on the variable frequency speed control system, the improvement is urgently needed on the original basis.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems in the prior art and providing a variable frequency speed regulation exhaust fan.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a variable-frequency speed regulation exhaust fan comprises an exhaust fan and a variable-frequency speed regulation system of the exhaust fan, wherein the variable-frequency speed regulation system comprises a control box, a heat dissipation box and a frequency converter, the heat dissipation box is fixed in the control box through a connecting piece, and a variable-frequency speed regulation control device of the frequency converter is fixed in the heat dissipation box and connected with the exhaust fan; the control box plays a role in protecting each part in the control box.
The control box is a heat insulation box body with a box door, so that potential safety hazards caused by excessive heating of elements in the control box to personnel contacting the control box are avoided, the top of the control box is fixedly provided with a hanging lug, the control box can be flexibly fixed under different environments and is suitable for various environment places, each side wall of the control box is provided with a heat dissipation port for dissipating heat in the control box, the bottom in the control box is provided with a heat dissipation fan, the heat dissipation fan is connected with a rotating motor outside the control box, a temperature sensor is further arranged in the control box and is electrically connected with the rotating motor, the temperature sensor is matched with the heat dissipation fan, the working state of the heat dissipation fan can be flexibly controlled according to the temperature in the heat dissipation box body, and the energy-saving and efficient heat dissipation effects are achieved; the use of the temperature sensor and its control component in conjunction with a rotating motor or other components and the electrical connection thereof are prior art, and are common technical means in the field, and are not further described herein
The heat dissipation box is a heat conduction box body, the side wall of the heat dissipation box is provided with a plurality of heat dissipation fins, the variable frequency speed regulation control device is fixed on the inner wall of the heat dissipation box, the heat dissipation box is provided with a pull door, the top of the sliding door is provided with a sliding handle, the bottom of the sliding door is provided with a limiting piece, the heat emitted by the variable-frequency speed regulation control device is quickly transferred into the control box through the side wall of the heat dissipation box and the heat dissipation fins on the side wall, the heat is discharged through the heat-dissipating fan and the heat-dissipating port, so as to play a good heat-dissipating role, the variable-frequency speed-regulating control device can be protected in the heat-dissipating box by the sliding door of the heat-dissipating box, when the control box has the bad phenomena of moisture and the like, but furthest's messenger variable frequency speed control device is not influenced, and the sliding door can be opened at any time, and the variable frequency speed control device's of being convenient for maintenance, and the locating part can be with the rigidity of sliding door, during the maintenance of being convenient for.
Preferably, the limiting part comprises a rotating wheel, a rotating rod, a threaded sleeve, a threaded rod and a horizontal guide plate, the rotating wheel is sleeved at the middle position of the rotating rod and is fixedly connected with the rotating rod, a through hole is arranged on the sliding door corresponding to the rotating wheel, the rotating wheel can be rotated through the through hole, two ends of the rotating rod are respectively fixedly connected with a thread bush, the bearing is sleeved outside the threaded sleeve and fixed on the sliding door through a fixing piece, the threaded sleeve is in threaded fit with the threaded rod, the bottom of the threaded rod is fixed with a vertical guide rod, the upper surface of the horizontal guide plate is provided with a guide groove parallel to the threaded rod, the lower end of the vertical guide rod is positioned in the guide groove, a plurality of limiting grooves are arranged on the inner wall of the heat dissipation box corresponding to one end of the threaded rod far away from the threaded sleeve, spacing recess and threaded rod phase-match are a plurality of spacing recess is vertical the range on heat dissipation incasement wall.
Preferably, still be equipped with humidity transducer in the control box, radiator fan's top is equipped with electric heating wire, humidity transducer and electric heating wire's control assembly electric connection. The humidity sensor and the electric heating wire are matched with each other, so that the influence of over-humidity in the control box on a frequency converter in the heat dissipation box can be avoided. The use of humidity sensor and its control module in conjunction with other modules and electrical connection is a common technical means in the art, and will not be described herein
The utility model discloses still including enabling other subassemblies of a variable frequency speed governing exhaust fan normal use, like electric heating wire's control module etc. be the conventional technical means in this field. Additionally, the utility model discloses in not adding the conventional technological means in this field of device or subassembly of injecing, all adopt conventional technological means in this field, like variable frequency speed control controlling means, electric heating wire, converter, temperature sensor, humidity transducer, radiator fan, radiating fin etc..
The working principle is as follows: the fan frequency converter is a special frequency converter customized for various fans. Adopts a frequency converter, changes the air quantity of the exhaust fan to adapt to the requirement of the production process by changing the rotating speed of the exhaust fan, but also has the advantages of saving the energy consumption during operation, having the highest comprehensive benefit, realizing the stepless speed regulation of the fan, conveniently forming a closed-loop control system, realizing the control of constant pressure or constant flow, on the basis of the prior art, the utility model utilizes the heat dissipation box to protect the variable frequency speed control device of the frequency converter, the heat generated by the frequency conversion speed regulation control device of the frequency converter can be quickly and efficiently transferred out, meanwhile, the heat dissipation box is matched with the control box, the control box plays a role in protecting the heat dissipation box, the protection effect of the control box on the frequency converter is enhanced, secondly, the cooling fan and the temperature sensor in the control box work in a matched mode, heat conducted out by the cooling box and the cooling fins is blown out from the cooling port in time, and a good cooling function is achieved.
The setting of the sliding door of the heat dissipation box, the maintenance and the maintenance of the frequency converter are facilitated due to the characteristic that the sliding door can be opened and closed randomly, the position of the sliding door can be flexibly fixed due to the arrangement of the limiting piece on the sliding door, the opening and closing size of the sliding door can be flexibly controlled, and the heat dissipation box is simple in structure and convenient to operate.
Compared with the prior art, the beneficial effects of the utility model are that: the valve of the fan is replaced to control the air quantity, so that the abrasion caused by the continuous opening and closing of the valve is reduced, and the failure rate is reduced; the soft start of the motor is realized, the service life of the motor is prolonged, the valve of the fan is fully opened during operation, the vibration and abrasion of an air duct are reduced, and the purpose of energy conservation is realized; the variable frequency speed regulation control device has the advantages of simple and reasonable structure, high heat dissipation efficiency, good heat dissipation effect and convenience in detection and maintenance, effectively solves the heat dissipation problem, improves the heat dissipation effect, ensures simple and compact structure, can perform double protection on the variable frequency speed regulation control device, prevents the variable frequency speed regulation control device from being affected by damp and overheat to normally use.
Drawings
Fig. 1 is a schematic structural diagram of a variable-frequency speed-regulating exhaust fan according to an embodiment of the present invention;
FIG. 2 is a schematic view of the interior of the control box of FIG. 1;
fig. 3 is a schematic structural view of a limiting member according to an embodiment of the present invention;
fig. 4 is a left side view of fig. 3.
In the figure: the device comprises an exhaust fan 1, a control box 2, a box door 3, a hanging lug 4, a fixing piece 5, a rotating motor 6, a heat dissipation port 7, a connecting piece 8, a temperature sensor 9, a humidity sensor 10, a heat dissipation box 11, a heat dissipation fin 12, a drawing door 13, a drawing handle 14, an electric heating wire 15, a heat dissipation fan 16, a rotating wheel 17, a through hole 18, a rotating rod 19, a horizontal guide plate 20, a threaded sleeve 21, a bearing 22, a threaded rod 23 and a vertical guide rod 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, a variable frequency speed regulation exhaust fan comprises an exhaust fan 1 and a variable frequency speed regulation system of the exhaust fan 1, wherein the variable frequency speed regulation system comprises a control box 2, a heat dissipation box 11 and a frequency converter, the heat dissipation box 11 is fixed in the control box 2 through a connecting piece 8, and a variable frequency speed regulation control device of the frequency converter is fixed in the heat dissipation box 11 and connected with the exhaust fan 1; the control box 2 plays a role in protecting each component in the control box 2.
The control box 2 is a heat insulation box body with a box door 3, so that potential safety hazards caused by excessive heating of elements in the control box 2 to personnel contacting the control box 2 are avoided, a hanging lug 4 is fixed at the top of the control box 2, the control box 2 can be flexibly fixed in different environments and is suitable for various environment places, each side wall of the control box 2 is provided with a heat dissipation port 7 for dissipating heat in the control box 2, a heat dissipation fan 16 is arranged at the bottom in the control box 2, the heat dissipation fan 16 is connected with a rotating motor 6 outside the control box, a temperature sensor 9 is further arranged in the control box 2, the temperature sensor 9 is electrically connected with the rotating motor 6, and the temperature sensor 9 and the heat dissipation fan 16 are matched with each other, so that the working state of the heat dissipation fan 16 can be flexibly controlled according to the temperature in the control box 2, and the energy-saving and efficient heat dissipation effects are; the use of the temperature sensor 9 and its control components in conjunction with the rotating motor 16 or other components and the electrical connection thereof are conventional and are common technical means in the art, and will not be described herein again
The heat dissipation box 11 is a heat conduction box body, a plurality of heat dissipation fins 12 are arranged on the side wall of the heat dissipation box 11, the variable frequency speed control device is fixed on the inner wall of the heat dissipation box 11, a pull door 13 is arranged on the heat dissipation box 11, a pull handle 14 is arranged at the top of the pull door 13, a limiting part is arranged at the bottom of the pull door 13, heat emitted by the variable frequency speed control device is rapidly transmitted into the control box 2 through the side wall of the heat dissipation box 11 and the heat dissipation fins 12 on the side wall, and is discharged through a heat dissipation fan 16 and a heat dissipation port 7 to play a good heat dissipation role, the variable frequency speed control device can be protected in the heat dissipation box 11 by the pull door 13 of the heat dissipation box 11, when unfavorable phenomena such as dampness occur in the control box 2, the variable frequency speed control device can be furthest not influenced, the pull door 13 can be opened at any time, the maintenance of the variable frequency speed control device is convenient, is convenient for maintenance.
Preferably, the limiting part comprises a rotating wheel 17, a rotating rod 19, a threaded sleeve 21, a threaded rod 23 and a horizontal guide plate 20, the rotating wheel 17 is sleeved at the middle position of the rotating rod 19 and is fixedly connected with the rotating rod 19, a through hole 18 is formed in the pull door 13 corresponding to the rotating wheel 17, the rotating wheel 17 can be rotated through the through hole 18, the threaded sleeve 21 is fixedly connected with two ends of the rotating rod 19 respectively, a bearing 22 is sleeved outside the threaded sleeve 21, the bearing 22 is fixed on the inner wall of the pull door 13 through a fixing part 5, the threaded sleeve 21 is in threaded fit with the threaded rod 23, a vertical guide rod 24 is fixed at the bottom of the threaded rod 23, a guide groove parallel to the threaded rod 23 is formed in the upper surface of the horizontal guide plate 20, the lower end of the vertical guide rod 24 is located in the guide groove, a plurality of limiting grooves are formed in the inner wall of the heat dissipation box 11 corresponding to, spacing recess and threaded rod 23 phase-match, it is a plurality of spacing recess is vertical the range on heat dissipation case 11 inner wall.
Preferably, a humidity sensor 10 is further arranged in the control box 2, an electric heating wire 15 is arranged above the heat dissipation fan 16, and the humidity sensor 10 is electrically connected with a control component of the electric heating wire 15. The humidity sensor 10 and the electric heating wire 15 are matched with each other, so that the influence of over-humidity in the control box 2 on the frequency converter in the heat dissipation box 11 can be avoided.
When the device works, the frequency converter is adopted, the air quantity of the exhaust fan is changed to adapt to the requirement of the production process by changing the rotating speed of the exhaust fan 1, the operation energy consumption is minimized, the comprehensive benefit is the highest, the stepless speed regulation of the fan can be realized, a closed-loop control system can be conveniently formed, and the control of constant pressure or constant flow is realized, on the basis of the prior art, the device can quickly and efficiently transmit the heat generated by the variable-frequency speed regulation control device of the frequency converter while protecting the variable-frequency speed regulation control device of the frequency converter by utilizing the heat dissipation box, meanwhile, the heat dissipation box 11 is matched with the control box 2, the control box 2 plays a role of protecting the heat dissipation box 11, the protection effect of the heat dissipation box on the variable-frequency speed regulation control device of the frequency converter is enhanced, and secondly, the heat dissipation fan 16 and the temperature sensor 9 in the control box 2 work in a matching way to blow out the heat conducted by the heat dissipation box 11, and a good heat dissipation function is realized.
The arrangement of the pull door 13 of the heat dissipation box 11 is convenient for the maintenance of a variable frequency speed control device of a frequency converter due to the characteristic of arbitrary opening and closing, the arrangement of a limiting piece on the pull door 13 can flexibly fix the position of the pull door 13 and flexibly control the opening and closing size of the pull door 13, the structure is simple, the operation is convenient, during the specific operation, the pull door 13 is pulled upwards by the pull handle 14 to a certain distance to ensure that the opening of the heat dissipation box 11 reaches the required size, the rotating wheel 17 is rotated through the through hole 18 on the pull door 13 to drive the rotating rod 19 to rotate, the thread sleeves 21 at the two ends of the rotating rod 19 rotate, the threaded rod 23 matched in the thread sleeve 21 does not rotate along with the rotation of the thread sleeve 21 under the limiting action of the vertical guide rod 24, but does telescopic motion in the thread sleeve 21 along with the different rotating directions of the thread sleeve 21, when the rotating wheel 17 is rotated, the threaded rod 23 extends into the corresponding limiting groove on the inner wall of the heat dissipation box 11 after, the sliding door 13 can be fixed at a corresponding position, when the sliding door 13 needs to be put down, the threaded rod 23 can be retracted from the limiting groove by rotating the rotating wheel 17 in the reverse direction, part of the threaded rod retracts into the threaded sleeve 21, the limiting effect is lost, and the sliding door 13 can be put down.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (3)
1. A variable-frequency speed-regulating exhaust fan comprises an exhaust fan and a variable-frequency speed-regulating system of the exhaust fan, and is characterized in that the variable-frequency speed-regulating system comprises a control box, a heat dissipation box and a frequency converter, wherein the heat dissipation box is fixed in the control box through a connecting piece, and a variable-frequency speed-regulating control device of the frequency converter is fixed in the heat dissipation box and connected with the exhaust fan;
the control box is a heat insulation box body with a box door, a hanging lug is fixed at the top of the control box, each side wall of the control box is provided with a heat dissipation port, the bottom in the control box is provided with a heat dissipation fan, the heat dissipation fan is connected with a rotating motor outside the control box, a temperature sensor is further arranged in the control box, and the temperature sensor is electrically connected with the rotating motor;
the heat dissipation box is a heat conduction box body, a plurality of heat dissipation fins are arranged on the side wall of the heat dissipation box, the variable frequency speed regulation control device is fixed on the inner wall of the heat dissipation box, a pull door is arranged on the heat dissipation box, a pull handle is arranged at the top of the pull door, and a limiting part is arranged at the bottom of the pull door.
2. The exhaust fan with variable frequency and speed regulation according to claim 1, wherein the limiting member comprises a rotating wheel, a rotating rod, a threaded sleeve, a threaded rod and a horizontal guide plate, the rotating wheel is sleeved at the middle position of the rotating rod and is fixedly connected with the rotating rod, a through hole is arranged on the pull door corresponding to the rotating wheel, two ends of the rotating rod are respectively and fixedly connected with the threaded sleeve, a bearing is sleeved outside the threaded sleeve and is fixed on the pull door through a fixing member, the threaded sleeve is in threaded fit with the threaded rod, a vertical guide rod is fixed at the bottom of the threaded rod, a guide groove parallel to the threaded rod is arranged on the upper surface of the horizontal guide plate, the lower end of the vertical guide rod is positioned in the guide groove, a plurality of limiting grooves are arranged on the inner wall of the heat dissipation box corresponding to the end of the threaded rod away from the threaded sleeve, a plurality of limiting grooves are vertically arranged on the inner wall of the heat dissipation box.
3. The variable-frequency speed-regulating exhaust fan according to claim 1, wherein a humidity sensor is further arranged in the control box, an electric heating wire is arranged above the cooling fan, and the humidity sensor is electrically connected with a control component of the electric heating wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020395826.3U CN211852227U (en) | 2020-03-25 | 2020-03-25 | Variable frequency speed regulation exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020395826.3U CN211852227U (en) | 2020-03-25 | 2020-03-25 | Variable frequency speed regulation exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211852227U true CN211852227U (en) | 2020-11-03 |
Family
ID=73137845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020395826.3U Active CN211852227U (en) | 2020-03-25 | 2020-03-25 | Variable frequency speed regulation exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211852227U (en) |
-
2020
- 2020-03-25 CN CN202020395826.3U patent/CN211852227U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207819799U (en) | A kind of DC speed regulator with external fan device | |
| CN211852227U (en) | Variable frequency speed regulation exhaust fan | |
| CN208638155U (en) | A kind of New-type electric machine | |
| CN214674937U (en) | Photovoltaic power generation's dc-to-ac converter subassembly | |
| CN207437408U (en) | A kind of industry security type mechanical fans device | |
| CN210715203U (en) | High temperature and high pressure resistant centrifugal fan | |
| CN110763553B (en) | Motor casting strength detection device | |
| CN208754141U (en) | A kind of energy-saving electric machine with efficient radiating apparatus | |
| CN206948176U (en) | A kind of frequency converting and energy saving device | |
| CN206269453U (en) | A kind of heat abstractor for being applied to petroleum machinery | |
| CN212272550U (en) | Cooling device for dry type spiral vacuum pump | |
| CN113192723A (en) | Dry-type transformer capable of resisting severe environment | |
| CN206389233U (en) | A kind of air-cooled frequency conversion speed motor | |
| CN207692259U (en) | A kind of double girder crane radiator used for electric hoist | |
| CN207995643U (en) | A kind of electrical cabinet radiator | |
| CN112886773A (en) | Direct current brushless motor | |
| CN218162043U (en) | Permanent magnet speed regulator with monitoring function | |
| CN206439383U (en) | A kind of gear-box auxiliary radiating device | |
| CN110418040B (en) | Intelligent security monitoring device | |
| CN217240618U (en) | Special converter of totally-enclosed feeding machine of safe type | |
| CN210861704U (en) | Industrial fan heater | |
| CN219995606U (en) | Energy-saving control equipment for refrigeration host | |
| CN214044408U (en) | Automatic protection device of electric power system | |
| CN215447364U (en) | Heat conversion power supply heat dissipation type rotary kiln for cement manufacture | |
| CN219419911U (en) | Power cabinet with temperature detection function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A variable frequency speed control exhaust fan Effective date of registration: 20230713 Granted publication date: 20201103 Pledgee: Xiaoxian finance Company limited by guarantee Pledgor: Tianrui group Xiaoxian Cement Co.,Ltd. Registration number: Y2023980048367 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |