CN111997921A - High-temperature fan with air circulation cooling function - Google Patents

High-temperature fan with air circulation cooling function Download PDF

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Publication number
CN111997921A
CN111997921A CN202010759468.4A CN202010759468A CN111997921A CN 111997921 A CN111997921 A CN 111997921A CN 202010759468 A CN202010759468 A CN 202010759468A CN 111997921 A CN111997921 A CN 111997921A
Authority
CN
China
Prior art keywords
shell
air circulation
mounting
circulation cooling
cooling function
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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.)
Pending
Application number
CN202010759468.4A
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Chinese (zh)
Inventor
翟中敏
吕剑
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Jiugao Electronic Technology Co ltd
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Jiangsu Jiugao Electronic Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Jiugao Electronic Technology Co ltd filed Critical Jiangsu Jiugao Electronic Technology Co ltd
Priority to CN202010759468.4A priority Critical patent/CN111997921A/en
Publication of CN111997921A publication Critical patent/CN111997921A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/08Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/58Cooling; Heating; Diminishing heat transfer
    • F04D29/582Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/70Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/70Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/705Adding liquids

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention provides a high-temperature fan with an air circulation cooling function. The high-temperature fan with the air circulation cooling function comprises a base; the shell is fixedly arranged on the top of the base; the first motor is fixedly arranged in the shell; the bracket is fixedly arranged in the shell; the fan blade is rotatably arranged on the bracket and is fixedly connected with an output shaft of the first motor; the cleaning mechanism comprises a spray head and a brush; and the circulating cooling mechanism is arranged at the top of the base. The high-temperature fan with the air circulation cooling function has the advantages of being convenient to use, capable of automatically cleaning, convenient to clean and capable of prolonging the service life, and extra power is not needed to circulate cooling liquid when air is cooled circularly.

Description

High-temperature fan with air circulation cooling function
Technical Field
The invention relates to the technical field of fans, in particular to a high-temperature fan with an air circulation cooling function.
Background
The high-temperature fan belongs to a special fan, is specially used in high-temperature operation places, and is made of materials with strong high temperature resistance and high pressure resistance. The high-temperature fan mainly comprises a stainless steel high-temperature fan, a transmission high-temperature fan, a centrifugal high-temperature fan and the like, the high-temperature fan is widely applied to the fields of chemical industry, petroleum, metallurgy, forging and pressing, electric power, nuclear power plants, environmental protection and the like, and the high-temperature fan has an air circulation cooling function.
However, in the prior art, when the high-temperature fan cools the air circulation, extra power needs to be provided to circulate the cooling liquid, and the air passes through the fan blades after cooling, and part of dirt in the air can adhere to the fan blades, so that the fan blades are inconvenient to clean, the load of the fan can be increased after the fan blades are used for a long time, and the service life of the fan is shortened.
Therefore, it is necessary to provide a new high temperature fan with air circulation cooling function to solve the above technical problems.
Disclosure of Invention
The invention solves the technical problem of providing the high-temperature fan with the air circulation cooling function, which is convenient to use, does not need extra power to circulate cooling liquid when air is circulated and cooled, can be automatically cleaned, is convenient to clean, and prolongs the service life.
In order to solve the above technical problems, the present invention provides a high temperature fan with an air circulation cooling function, comprising: a base; the shell is fixedly arranged on the top of the base; the first motor is fixedly arranged in the shell; the bracket is fixedly arranged in the shell; the fan blade is rotatably arranged on the bracket and is fixedly connected with an output shaft of the first motor; the cleaning mechanism comprises a spray head and a brush; the circulating cooling mechanism is arranged at the top of the base; the filter element support is movably arranged in the shell, and the top of the filter element support extends out of the shell; the filter element is fixedly arranged on the filter element bracket.
Preferably, two clamping holes are symmetrically formed in the shell, an arc-shaped clamping groove is formed in the inner wall of the bottom of each clamping hole, and a first slope is fixedly mounted on the inner wall of the top of each arc-shaped clamping groove.
Preferably, a sealing plate is fixedly mounted at the top of the filter element support, two rotating shafts are symmetrically and rotatably mounted on the sealing plate, a clamping block is fixedly mounted at the bottom end of each rotating shaft, the clamping block corresponds to the clamping hole, a second slope is fixedly mounted on the clamping block, and the second slope is matched with the first slope.
Preferably, the first slope and the second slope are made of anti-skid materials.
Preferably, wiper mechanism still includes the installation shell, slidable mounting has the installation piece in the installation shell, the top symmetry fixed mounting of installation piece has two installation poles, the installation pole extend to in the casing and with casing sliding connection, installation pole and shower nozzle and brush fixed connection, the basin has been seted up on the installation pole, the basin is linked together with the shower nozzle, the annular cavity has been seted up on the installation piece, the annular cavity is linked together with the basin, one side of installation shell is equipped with the water pump, the delivery port and the annular cavity of water pump are linked together.
Preferably, wiper mechanism still includes the threaded rod, the threaded rod rotates to be installed in the installation shell, just the threaded rod with installation piece threaded connection, the bottom of threaded rod extends to the installation shell outside and fixed mounting has first belt pulley, fixed mounting has the second motor on the installation shell, fixed mounting has the second belt pulley on the output shaft of second motor, the cover is equipped with same belt on second belt pulley and the first belt pulley.
Preferably, the cleaning mechanism further comprises a sewage draining groove, the sewage draining groove is formed in the inner wall of the bottom of the shell, and the sewage draining groove is communicated with the mounting shell.
Preferably, a hose is arranged at a water outlet of the water pump and is communicated with the annular cavity, two fixing blocks are symmetrically and fixedly mounted at the bottom of the mounting shell and are fixedly connected with the base, and a sliding hole is formed in the inner wall of one side of the mounting shell.
Preferably, the circulative cooling mechanism includes liquid storage tank, bellows, a plurality of cooling tube and back flow, liquid storage tank fixed mounting is at the top of base, bellows fixed mounting is on the top inner wall of casing, and is a plurality of cooling tube fixed mounting is in one side of liquid storage tank, the top of cooling tube extends to in the bellows, back flow fixed mounting be in one side of bellows, just the bottom of back flow extends to in the liquid storage tank.
Preferably, the inner walls of the two sides of the air box are respectively provided with an air inlet and an air outlet, and the cooling pipe is internally provided with a one-way valve.
Compared with the related art, the high-temperature fan with the air circulation cooling function provided by the invention has the following beneficial effects:
the invention provides a high-temperature fan with an air circulation cooling function, wherein a shell is fixedly arranged at the top of a base, a first motor is fixedly arranged in the shell, fan blades are rotatably arranged on a bracket and fixedly connected with an output shaft of the first motor, and a circulation cooling mechanism is arranged at the top of the base and can circulate and cool air; the cleaning mechanism comprises a spray head and a brush, so that the fan blades can be automatically cleaned, and the cleaning is convenient; filter core support movable mounting be in the casing, just outside filter core support's top extended to the casing, filter core fixed mounting be in on the filter core support, can filter the air.
Drawings
Fig. 1 is a schematic structural diagram of a high-temperature fan with an air circulation cooling function according to a preferred embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a perspective view of the rotating shaft and the latch shown in FIG. 1;
FIG. 4 is a schematic structural view of the cleaning mechanism shown in FIG. 1;
FIG. 5 is a perspective view of the mounting block and mounting bar shown in FIG. 4;
fig. 6 is a schematic structural view of the circulation cooling mechanism shown in fig. 1.
Reference numbers in the figures: 1. a base; 2. a housing; 201. a clamping hole; 202. an arc-shaped clamping groove; 203. a first slope; 3. a first motor; 4. a support; 5. a fan blade; 6. a cleaning mechanism; 601. mounting a shell; 602. mounting blocks; 603. mounting a rod; 604. a water tank; 605. a spray head; 606. a brush; 607. an annular cavity; 608. a water pump; 609. a threaded rod; 610. a first pulley; 611. a second motor; 612. a second pulley; 613. a belt; 614. a sewage draining groove; 615. a hose; 616. a fixed block; 7. a circulating cooling mechanism; 701. a liquid storage tank; 702. an air box; 703. a cooling tube; 704. a return pipe; 705. an air inlet; 706. an exhaust hole; 8. a filter element holder; 801. a sealing plate; 802. a rotating shaft; 803. a clamping block; 804. a second slope; 9. and (3) a filter element.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Examples
Please refer to fig. 1-6, wherein fig. 1 is a schematic structural diagram of a high temperature fan with air circulation cooling function according to a preferred embodiment of the present invention; FIG. 2 is an enlarged view of portion A of FIG. 1; FIG. 3 is a perspective view of the rotating shaft and the latch shown in FIG. 1; FIG. 4 is a schematic structural view of the cleaning mechanism shown in FIG. 1; FIG. 5 is a perspective view of the mounting block and mounting bar shown in FIG. 4; fig. 6 is a schematic structural view of the circulation cooling mechanism shown in fig. 1. The high-temperature fan with the air circulation cooling function comprises: a base 1; the shell 2 is fixedly arranged on the top of the base 1; the first motor 3, the said first motor 3 is fixedly mounted in the said body 2; the bracket 4 is fixedly arranged in the shell 2; the fan blade 5 is rotatably arranged on the bracket 4, and the fan blade 5 is fixedly connected with an output shaft of the first motor 3; the cleaning mechanism 6, the cleaning mechanism 6 comprises a spray head 605 and a brush 606; the circulating cooling mechanism 7 is arranged at the top of the base 1, and the circulating cooling mechanism 7 is arranged at the top of the base 1; the filter element support 8 is movably arranged in the shell 2, and the top of the filter element support 8 extends out of the shell 2; and the filter element 9 is fixedly arranged on the filter element bracket 8.
Two clamping holes 201 are symmetrically formed in the shell 2, an arc-shaped clamping groove 202 is formed in the inner wall of the bottom of each clamping hole 201, and a first slope 203 is fixedly mounted on the inner wall of the top of each arc-shaped clamping groove 202.
The top of the filter element support 8 is fixedly provided with a sealing plate 801, the sealing plate 801 is symmetrically and rotatably provided with two rotating shafts 802, the bottom end of each rotating shaft 802 is fixedly provided with a clamping block 803, each clamping block 803 corresponds to one clamping hole 201, each clamping block 803 is fixedly provided with a second slope 804, and each second slope 804 is matched with the corresponding first slope 203.
The first slope 203 and the second slope 804 are both made of anti-slip materials.
The cleaning mechanism 6 further comprises a mounting shell 601, a mounting block 602 is slidably mounted in the mounting shell 601, two mounting rods 603 are symmetrically and fixedly mounted at the top of the mounting block 602, the mounting rods 603 extend into the shell 2 and are slidably connected with the shell 2, the mounting rods 603 are fixedly connected with a spray head 605 and a hairbrush 606, a water tank 604 is arranged on the mounting rods 603, the water tank 604 is communicated with the spray head 605, an annular cavity 607 is arranged on the mounting block 602, the annular cavity 607 is communicated with the water tank 607, a water pump 608 is arranged on one side of the mounting shell 601, and a water outlet of the water pump 608 is communicated with the annular cavity 607.
Cleaning mechanism 6 still includes threaded rod 609, threaded rod 609 rotates and installs in installation shell 601, just threaded rod 609 with installation piece 602 threaded connection, the bottom of threaded rod 609 extends to the installation shell 601 outside and fixed mounting has first belt pulley 610, fixed mounting has second motor 611 on the installation shell 601, fixed mounting has second belt pulley 612 on the output shaft of second motor 611, the cover is equipped with same belt 613 on second belt pulley 612 and the first belt pulley 610.
The cleaning mechanism 6 further comprises a sewage draining groove 614, the sewage draining groove 614 is arranged on the inner wall of the bottom of the shell 2, and the sewage draining groove 614 is communicated with the mounting shell 601.
A hose 615 is arranged at a water outlet of the water pump 608, the hose 615 is communicated with the annular cavity 607, two fixing blocks 616 are symmetrically and fixedly mounted at the bottom of the mounting shell 601, the fixing blocks 616 are fixedly connected with the base 1, and a sliding hole is formed in the inner wall of one side of the mounting shell 601.
Circulative cooling mechanism 7 includes liquid storage tank 701, bellows 702, a plurality of cooling tube 703 and back flow 704, liquid storage tank 701 fixed mounting is at the top of base 1, bellows 702 fixed mounting is on the top inner wall of casing 2, and is a plurality of cooling tube 703 fixed mounting is in one side of liquid storage tank 701, the top of cooling tube 703 extends to in the bellows 702, back flow 704 fixed mounting be in one side of bellows 702, just the bottom of back flow 704 extends to in the liquid storage tank 701.
An air inlet 705 and an air outlet 706 are respectively arranged on the inner walls of the two sides of the air box 702, and a one-way valve is arranged in the cooling pipe 703.
In this embodiment, when the cooling device is used, cooling liquid is added into the liquid storage tank 701, the first motor 3 is started, the first motor 3 drives the fan blade 5 to rotate, air can circulate, when the fan blade 5 rotates, air enters from the air inlet 705 of the air box 702 and is then discharged from the air outlet 706, at this time, negative pressure is formed at the pipe orifice at the top end of the cooling pipe 703, the cooling pipe 703 absorbs the cooling liquid into the air box 702 and then flows back to the liquid storage tank 701 through the return pipe 704, circulating flow of the cooling liquid can be achieved, extra power is not needed, and at this time, air can be circulated and cooled;
when the air is cooled circularly, the filter element 9 filters impurities in the air, the amount of the impurities attached to the fan blades 5 is reduced, when the filter element 9 needs to be cleaned or replaced, the rotating shaft 802 is rotated, the rotating shaft 802 drives the fixture block 803 to rotate, the fixture block 803 corresponds to the fixture hole 201, and at the moment, the filter element support 8 can be pulled out, and the filter element 9 can be replaced or cleaned; during installation, the clamping block 803 is inserted into the clamping hole 201 in alignment, so that the clamping block 803 enters the arc-shaped clamping groove 202, the rotating shaft 802 is rotated, and the sealing plate 801 and the shell 2 are sealed and tightly contacted under the action of the first slope 203 and the second slope 804;
when the fan blade 5 needs to be cleaned, the second motor 611 is started, the second motor 611 drives the second belt pulley 612 to rotate, the second belt pulley 612 drives the first belt pulley 610 to rotate through the belt 613, the first belt pulley 610 drives the threaded rod 609 to rotate, the threaded rod 609 drives the mounting block 602 to move upwards, so that the brush 606 contacts with the fan blade 5, as shown in the attached drawing 1 of the specification, the water pump 608 is started, the water pump 608 pumps water or detergent, the detergent is sprayed onto the fan blade 5 through the spray head 605, the first motor 3 is started, the fan blade 5 is rotated and cleaned, the cleaned sewage enters the mounting shell 601 through the sewage discharge groove 614 and is discharged through the sliding hole, after the cleaning is completed, the second motor 611 is started in a reverse direction, so that the brush 606 can enter the mounting shell 601, and the rotation of the fan blade 5 is not affected.
In this embodiment, the housing 2 is fixedly mounted on the top of the base 1, the first motor 3 is fixedly mounted in the housing 2, the fan blade 5 is rotatably mounted on the bracket 4, the fan blade 5 is fixedly connected with an output shaft of the first motor 3, and the circulating cooling mechanism 7 is arranged on the top of the base 1 and can circulate and cool air; the cleaning mechanism 6 comprises a spray head 605 and a brush 606, and can automatically clean the fan blade 5, so that the cleaning is convenient; filter core support 8 movable mounting be in the casing 2, just outside filter core support 8's top extended to casing 2, 9 fixed mounting of filter core can filter the air on filter core support 8.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A high temperature fan with an air circulation cooling function, comprising:
a base;
the shell is fixedly arranged on the top of the base;
the first motor is fixedly arranged in the shell;
the bracket is fixedly arranged in the shell;
the fan blade is rotatably arranged on the bracket and is fixedly connected with an output shaft of the first motor;
the cleaning mechanism comprises a spray head and a brush;
the circulating cooling mechanism is arranged at the top of the base;
the filter element support is movably arranged in the shell, and the top of the filter element support extends out of the shell;
the filter element is fixedly arranged on the filter element bracket.
2. The high-temperature fan with the air circulation cooling function according to claim 1, wherein the housing is symmetrically provided with two clamping holes, an arc-shaped clamping groove is formed on the inner wall of the bottom of each clamping hole, and a first slope is fixedly mounted on the inner wall of the top of each arc-shaped clamping groove.
3. The high-temperature fan with the air circulation cooling function according to claim 2, wherein a sealing plate is fixedly mounted at the top of the filter element support, two rotating shafts are symmetrically and rotatably mounted on the sealing plate, a clamping block is fixedly mounted at the bottom end of each rotating shaft, the clamping block corresponds to the clamping hole, a second slope is fixedly mounted on the clamping block, and the second slope is matched with the first slope.
4. The high-temperature fan with the air circulation cooling function according to claim 3, wherein the first slope and the second slope are made of an anti-slip material.
5. The high-temperature fan with the air circulation cooling function according to claim 1, wherein the cleaning mechanism further comprises a mounting shell, a mounting block is slidably mounted in the mounting shell, two mounting rods are symmetrically and fixedly mounted at the top of the mounting block, the mounting rods extend into the shell and are slidably connected with the shell, the mounting rods are fixedly connected with the spray head and the brush, a water tank is arranged on the mounting rods and is communicated with the spray head, an annular cavity is arranged on the mounting block and is communicated with the water tank, a water pump is arranged on one side of the mounting shell, and a water outlet of the water pump is communicated with the annular cavity.
6. The high-temperature fan with the air circulation cooling function according to claim 5, wherein the cleaning mechanism further comprises a threaded rod, the threaded rod is rotatably installed in the installation shell and is in threaded connection with the installation block, the bottom end of the threaded rod extends out of the installation shell and is fixedly provided with a first belt pulley, a second motor is fixedly installed on the installation shell, a second belt pulley is fixedly installed on an output shaft of the second motor, and the second belt pulley and the first belt pulley are sleeved with the same belt.
7. The high-temperature fan with the air circulation cooling function according to claim 5, wherein the cleaning mechanism further comprises a sewage draining groove, the sewage draining groove is formed in the inner wall of the bottom of the casing, and the sewage draining groove is communicated with the mounting casing.
8. The high-temperature fan with the air circulation cooling function according to claim 5, wherein a hose is arranged at a water outlet of the water pump, the hose is communicated with the annular cavity, two fixing blocks are symmetrically and fixedly mounted at the bottom of the mounting shell, the fixing blocks are fixedly connected with the base, and a sliding hole is formed in the inner wall of one side of the mounting shell.
9. The high temperature fan with air circulation cooling function according to claim 1, wherein the circulation cooling mechanism includes a liquid storage tank, a wind box, a plurality of cooling pipes and a return pipe, the liquid storage tank is fixedly mounted on the top of the base, the wind box is fixedly mounted on the inner wall of the top of the housing, the plurality of cooling pipes are fixedly mounted on one side of the liquid storage tank, the top ends of the cooling pipes extend into the wind box, the return pipe is fixedly mounted on one side of the wind box, and the bottom ends of the return pipe extend into the liquid storage tank.
10. The high temperature fan with air circulation cooling function as claimed in claim 9, wherein the inner walls of the two sides of the wind box are respectively provided with an air inlet and an air outlet, and the cooling pipe is internally provided with a one-way valve.
CN202010759468.4A 2020-07-31 2020-07-31 High-temperature fan with air circulation cooling function Pending CN111997921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010759468.4A CN111997921A (en) 2020-07-31 2020-07-31 High-temperature fan with air circulation cooling function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010759468.4A CN111997921A (en) 2020-07-31 2020-07-31 High-temperature fan with air circulation cooling function

Publications (1)

Publication Number Publication Date
CN111997921A true CN111997921A (en) 2020-11-27

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Country Status (1)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112879356A (en) * 2021-01-13 2021-06-01 李保艳 Method for maintaining blades of high-pressure axial flow fan
CN113217476A (en) * 2021-05-31 2021-08-06 深圳市永亿豪电子有限公司 Fan of centrifugal machine
CN113586531A (en) * 2021-09-16 2021-11-02 三联泵业股份有限公司 Filtering and cleaning device of double-suction pump
CN113586530A (en) * 2021-09-16 2021-11-02 三联泵业股份有限公司 Automatic filter screen replacing and cleaning mechanism of double-suction pump
CN115013365A (en) * 2022-07-29 2022-09-06 中煤科工集团重庆研究院有限公司 Noise-reduction explosion-proof local ventilator for coal mine area
CN115045850A (en) * 2022-07-14 2022-09-13 山东奥纳尔制冷科技有限公司 Large-scale ventilation blower with flabellum clearance mechanism

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112879356A (en) * 2021-01-13 2021-06-01 李保艳 Method for maintaining blades of high-pressure axial flow fan
CN113217476A (en) * 2021-05-31 2021-08-06 深圳市永亿豪电子有限公司 Fan of centrifugal machine
CN113586531A (en) * 2021-09-16 2021-11-02 三联泵业股份有限公司 Filtering and cleaning device of double-suction pump
CN113586530A (en) * 2021-09-16 2021-11-02 三联泵业股份有限公司 Automatic filter screen replacing and cleaning mechanism of double-suction pump
CN115045850A (en) * 2022-07-14 2022-09-13 山东奥纳尔制冷科技有限公司 Large-scale ventilation blower with flabellum clearance mechanism
CN115013365A (en) * 2022-07-29 2022-09-06 中煤科工集团重庆研究院有限公司 Noise-reduction explosion-proof local ventilator for coal mine area

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Application publication date: 20201127