CN114320976A - Centrifugal fan with flow and temperature regulation - Google Patents
Centrifugal fan with flow and temperature regulation Download PDFInfo
- Publication number
- CN114320976A CN114320976A CN202210221601.XA CN202210221601A CN114320976A CN 114320976 A CN114320976 A CN 114320976A CN 202210221601 A CN202210221601 A CN 202210221601A CN 114320976 A CN114320976 A CN 114320976A
- Authority
- CN
- China
- Prior art keywords
- fan
- air outlet
- volute
- flow
- temperature regulation
- 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.)
- Pending
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a centrifugal fan with flow and temperature regulation, wherein a temperature regulation device for regulating the temperature of fluid in the centrifugal fan in a coolant heat exchange mode is arranged at an air outlet of the fan; the temperature adjusting device for adjusting the temperature of the fluid in the centrifugal fan in a coolant heat exchange mode is arranged at the air outlet of the fan, so that the air outlet of the fan can be directly cooled, the fluid does not need to be cooled independently, and the fan is convenient and efficient.
Description
Technical Field
The invention relates to the field of gas fluid measurement and verification, in particular to a centrifugal fan with flow and temperature regulation.
Background
In order to realize the verification of the flow meters under different temperature, pressure and medium conditions, a special high-pressure gas flow verification device is needed, for example, natural gas is taken as an example, the verification conditions are realized by adjusting pressure, temperature and flow after a natural gas long-distance pipeline is cut off, and gas is returned to the natural gas long-distance pipeline after verification is finished. The high-pressure loop gas flow calibrating device can effectively reduce cost and improve the calibrating efficiency of the flowmeter, is the main development direction of the future high-pressure gas flow calibrating technology, and the core equipment of the high-pressure loop gas flow calibrating device is the centrifugal fan.
In the current stage, the flow centrifugal fan operates by driving the impeller to rotate by means of the rotation of the variable frequency motor to provide wind pressure, but the variable frequency motor has a limited variable frequency range, and the required flow requirement is difficult to meet by means of the output of the variable frequency motor in a low flow section, so that an ideal flow environment cannot be obtained; in addition, the fluid does work in the process of driving the fluid by the fan, the motor generates heat, the temperature of the fluid is increased, and if an ideal fluid value is obtained, the fluid is cooled by independent refrigeration equipment, so that the occupied field space is occupied, and the cost is higher.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a centrifugal fan with flow and temperature regulation.
In order to achieve the purpose, the invention adopts the following technical scheme:
a centrifugal fan with flow and temperature regulation is provided with a fan air inlet and a fan air outlet and comprises a volute, a centrifugal impeller and a variable frequency motor, wherein the volute, the centrifugal impeller and the variable frequency motor are embedded in a fan shell; the volute comprises a volute air inlet and a volute air outlet, the volute air inlet is communicated with the fan air inlet, the volute air outlet is communicated with the fan air outlet, an inlet end cover plate is arranged at the air inlet end of the fan shell, an outlet end cover plate is arranged at the air outlet end of the fan shell, a temperature adjusting device for adjusting the temperature of fluid flowing out of the centrifugal fan in a heat exchange mode is arranged at the air outlet of the fan, a flow adjusting device capable of adjusting the actual flowing area of the fluid is arranged in the fan or at the air inlet of the fan or at the air outlet of the fan, the flow adjusting device is combined with the variable frequency motor for use, the flow adjusting range of the centrifugal fan can be effectively widened, particularly the low-frequency adjusting range, the flow of the fan can be further reduced by reducing the actual flowing area of the fluid, and ideal air pressure is obtained; the temperature adjusting device for adjusting the temperature of the fluid in the centrifugal fan in a coolant heat exchange mode is arranged at the air outlet of the fan, so that the air outlet of the fan can be directly cooled, the fluid does not need to be cooled independently, and the fan is convenient and efficient.
The flow regulating device is arranged at the air outlet of the volute, comprises a regulating base arranged at the air outlet side of the volute, a regulating baffle clamped on the regulating base and connected with the regulating base through a sliding rail, and a regulating electric control unit for driving the regulating baffle to slide; the adjusting electric control unit comprises a motor arranged outside the fan shell, the motor is used for driving a transmission shaft which penetrates through the fan shell and extends into the fan, a gear is arranged at the tail end of the transmission shaft, a strip-shaped gear sliding strip in the direction consistent with the sliding direction of the adjusting baffle is further arranged on the adjusting baffle, the gear and the gear sliding strip are matched and meshed with each other, the adjusting baffle is matched with the shape of the volute air outlet, the contact surface is smooth and flat, the size of the blocking surface of the adjusting baffle on the adjusting base and the opening at the volute air outlet or the opening at the downstream position is adjusted so as to adjust the generated fluid of the fan, especially, the ideal flow rate is still difficult to obtain when the variable frequency motor works at the minimum frequency, and the air outlet is adjusted by using the adjusting baffle at the moment, so that the ideal flow rate can be obtained.
Preferably, the actual inflow area of the fluid after the adjusting baffle coincides with the volute air outlet is a, wherein the area range of a is that a is greater than 0 and is equal to or less than the opening area of the volute air outlet, and the adjusting baffle belongs to the adjusting range of the adjusting baffle.
Preferably, the temperature adjusting device is abutted to the opening position of the air outlet of the fan through a flange, the temperature adjusting device comprises an outer pipeline, a plurality of inner pipes which closely penetrate through the upper and lower streams of the outer pipeline are arranged in an axial direction matrix mode in the outer pipeline, the inner pipes are arranged in the outer pipeline through two clamping plates which are arranged at the upper and lower streams in the outer pipeline, the two clamping plates respectively and radially seal the inner part of the outer pipeline to form a cooling chamber, water return plates which are connected with the inner wall of the outer pipeline in an abutting mode are arranged in the cooling chamber in an up-and-down staggered mode, the coinciding positions of the water return plates which are arranged up and down exceed the horizontal plane position of the central axis of the outer pipeline, a water inlet and a water outlet are respectively arranged at the front position and the rear position below the cooling chamber, a plurality of temperature sensors are arranged above the cooling chamber and extend into the cooling chamber from the outer part of the outer pipeline, fluid in the temperature adjusting device passes through the inner pipes, and the cooling fluid circulates in the cooling chamber to cool the fluid, thereby obtain microthermal fluid, reach the operating mode environment of ideal, temperature regulation apparatus is better with the direct butt joint leakproofness of fan air outlet, and coaxial setting, and the equipment size is accomplished littleer.
Preferably, the cooling chamber is continuously filled with the cooling liquid from the water inlet and drained of the cooling liquid from the water outlet.
Preferably, the bases with the bottom surfaces in the same horizontal plane are erected below the outer pipeline and the centrifugal fan respectively, and the whole equipment can be directly used in a working condition environment.
Preferably, centrifugal impeller in spiral case and the spiral case is arranged in inverter motor upper reaches or low reaches position, and the fluid can fully erode motor casing and bearing in the fan, can fully dispel the heat to the motor, makes motor casing remain the low temperature state all the time, not only can keep the fan to last stable operation like this, also can let the fluid programming rate in the fan slow down simultaneously, cooperates temperature regulation apparatus to obtain microthermal fluid temperature more easily.
Preferably, the position of the air outlet of the fan is in the axial direction, the center of the outlet end cover plate is provided with a cavity and the position of the air outlet is led out, and the fan shell is simple in structure and small in size in the coaxial design.
Preferably, when the centrifugal impeller in spiral case and the spiral case was arranged in inverter motor's low reaches position, fan air outlet position was radial direction, and the export end apron is sealed apron, draws forth and pierces through the fan casing from the spiral case air outlet and derives the air outlet position, and the air outlet does not need the high pressure loss of extra guide plate water conservancy diversion efficiency little, can obtain the wind pressure and the flow of bigger limit value, and when cooperation flow regulation device used, two upper and lower limits of regulation fluid flow had been promoted to a certain extent, obtained ideal flow more easily.
Preferably, the variable frequency motor is operated to introduce power from the outside through a high voltage penetration piece arranged outside the fan shell.
Compared with the prior art, the invention has the beneficial effects that: (1) the flow regulator can be combined with a variable frequency motor for use, can effectively widen the flow regulation range of the centrifugal fan, particularly the low-frequency regulation range, and can control the actual flow by reducing the actual inflow area of the fluid, further reduce the flow of the fan and obtain ideal wind pressure; (2) the temperature adjusting device for adjusting the temperature of the fluid in the centrifugal fan in a coolant heat exchange mode is arranged at the air outlet of the fan, so that the air outlet of the fan can be directly cooled, the fluid does not need to be separately cooled, and the centrifugal fan is convenient and efficient; (3) the centrifugal impeller is arranged at the downstream position of the variable frequency motor, fluid in the fan can fully wash the motor shell and the bearing, the motor can be fully radiated, and the motor shell is always kept in a low-temperature state, so that the fan can be kept to continuously and stably run, the temperature rise speed of the fluid in the fan can be slowed down, and the temperature of the low-temperature fluid can be more easily obtained by matching with a temperature adjusting device; (4) when fan air outlet position was radial direction, the export end cover board was sealed apron, draws forth and pierces through the fan casing from the spiral case air outlet and derives the air outlet position, and the air outlet does not need extra guide plate water conservancy diversion, and efficient high pressure loss is little, can obtain the wind pressure and the flow of bigger limit value, and when cooperation flow adjusting device used, two upper and lower spacing of having promoted the regulation fluid flow to a certain extent, obtain ideal flow more easily.
Drawings
FIG. 1 is an overall schematic view of embodiment 1 of the present invention;
fig. 2 is a schematic view of the flow rate adjusting device when the flow rate adjusting device of embodiment 1 of the present invention is disposed at the air outlet of the volute;
fig. 3 is another schematic view of the flow rate adjusting device when the flow rate adjusting device of embodiment 1 of the present invention is disposed at the air outlet of the volute;
FIG. 4 is a front view of a temperature adjusting apparatus according to embodiment 1 of the present invention;
FIG. 5 is a front end view of the temperature adjusting device according to embodiment 1 of the present invention;
fig. 6 is a structural schematic diagram of a radial direction of the air outlet position of the blower in the case that the volute of embodiment 1 of the present invention is disposed at the downstream position of the variable frequency motor;
fig. 7 is a schematic view of a flow rate adjusting device when the flow rate adjusting device is arranged on the same longitudinal plane as a variable frequency motor in embodiment 2 of the present invention;
description of reference numerals: 11 fan air inlets, 12 fan air outlets, 13 fan shells, 21 volutes, 211 volute air inlets, 212 volute air outlets, 22 centrifugal impellers, 23 variable frequency motors, 24 motor shells, 31 inlet end cover plates, 32 outlet end cover plates, 4 temperature adjusting devices, 41 outer pipelines, 42 inner pipes, 43 clamping plates, 44 cooling chambers, 45 water return plates, 46 water inlets, 47 water outlets, 48 temperature sensors, 5 flow adjusting devices, 51 adjusting bases, 52 adjusting baffles, 53 sliding rails, 54 motors, 55 transmission shafts, 56 gears, 57 gear sliding strips, 6 bases, 71 annular baffles and 72 inner flow openings.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Embodiment 1, as shown in fig. 1 to 5, a centrifugal fan with flow and temperature regulation includes a centrifugal fan having a fan inlet 11 and a fan outlet 12, and includes a volute 21 embedded in a fan housing 13, a centrifugal impeller 22, and a variable frequency motor 23, the centrifugal impeller 22 is disposed inside the volute 21, the variable frequency motor 23 is disposed inside a motor housing 24, and a rotating shaft of the variable frequency motor 23 is coaxial with and connected to the centrifugal impeller 22; the volute 21 comprises a volute air inlet 211 and a volute air outlet 212, the volute air inlet is communicated with the fan air inlet 11, the volute air outlet 212 is communicated with the fan air outlet 12, an inlet end cover plate 31 is arranged at the air inlet end of the fan shell 13, an outlet end cover plate 32 is arranged at the air outlet end of the fan shell, and a temperature adjusting device 4 for adjusting the temperature of fluid flowing out of the centrifugal fan in a heat exchange mode is arranged at the fan air outlet 12; the flow regulating device 5 is arranged in the fan or at the fan inlet 11 or the fan outlet 12, and can regulate the actual flow through by regulating the actual flow area of the fluid.
The flow adjusting device 5 is arranged inside the fan or at the fan air inlet 11 or the fan air outlet 12, and is not limited to be arranged at any specific position, and the flow flowing area inside the fan belongs to a sealed area, so that the actual flowing flow of any fluid can be reduced in any fluid flowing area, and the actual flowing flow is adjusted together by matching with the variable frequency motor 23, so that an ideal flow value is obtained.
In the specific implementation of the embodiment, the flow rate adjusting device 5 is disposed at the volute outlet 212, and includes an adjusting base 51 disposed at the side of the volute outlet 212, an adjusting baffle 52 clamped on the adjusting base 51 and connected to the adjusting base 51 through a sliding rail 53, and an adjusting electric control unit for driving the adjusting baffle 52 to slide; the adjusting electric control unit comprises a motor 54 arranged outside the fan shell 13, the motor 54 is used for driving a transmission shaft 55 penetrating through the fan shell 13 and extending into the fan, a gear 56 is arranged at the tail end of the transmission shaft 55, a strip-shaped gear slide bar 57 in the same direction as the sliding direction of the adjusting baffle plate 52 is further arranged on the adjusting baffle plate 52, the gear 56 and the gear slide bar 57 are matched and meshed with each other, the adjusting baffle plate 52 is matched with the volute air outlet 212 in shape, and the contact surface is smooth and flat.
Preferably, the flow adjusting device 5 is disposed at the volute outlet 212 for facilitating hardware arrangement, when the gear 56 and the gear slider 57 are driven by the motor 54 to perform linkage, the adjusting baffle 52 is displaced relative to the volute outlet 212, and in an ideal state, the adjusting baffle 52 is smoothly attached to the outer surface of the volute outlet 212, and in fact, due to the limitation of process level, there may be a case where complete sealing is not possible, but in any case, when the adjusting baffle 52 is displaced relative to the volute outlet 212, the actual flow rate can be controlled, and especially when the variable frequency fan is already operating at the minimum frequency, the flow rate flowing out from the volute outlet 212 is further reduced, so that an ideal flow rate value can be obtained through the centrifugal fan itself without using other devices.
In the specific implementation of the present embodiment, the actual inflow area of the fluid after the adjustment baffle 52 is overlapped with the volute outlet 212 is a, where the area range of a is 0 < a ≦ the opening area of the volute outlet 212.
In the embodiment, the temperature adjusting device 4 is abutted to the opening position of the air outlet 12 of the fan through a flange, the temperature adjusting device 4 comprises an outer pipe 41, a plurality of inner pipes 42 which penetrate through the upper and lower streams of the outer pipe 41 in a fine and close manner are uniformly distributed in the inner axial direction of the outer pipe 41, the inner pipes 42 are erected inside the outer pipe 41 through two clamping plates 43 which are arranged at the upper and lower streams inside the outer pipe 41, the two clamping plates 43 respectively seal the inside of the outer pipe 41 in the radial direction to form a cooling chamber 44, the water return plates 45 connected with the inner wall of the outer pipeline 41 are arranged in the cooling chamber 44 in a staggered way in the vertical direction, the superposed positions of the water return plates 45 arranged vertically exceed the horizontal plane position of the central axis of the outer pipeline 41, a water inlet 46 and a water outlet 47 are provided at front and rear positions below the cooling chamber 44, respectively, and a plurality of temperature sensors 48 are provided above the cooling chamber 44 and extending into the cooling chamber 44 from outside the outer pipe 41.
In the embodiment, the cooling chamber 44 is continuously filled with the cooling fluid from the water inlet 46 and discharged from the water outlet 47.
After the cooling liquid is injected from the water inlet 46, the cooling liquid flows in the cooling chamber 44, the direction of the cooling liquid is turned back after passing through the water return plate 45, the flow time of the cooling liquid in the cooling chamber 44 is prolonged due to the arrangement of the water return plate 45, and the temperature sensor 48 can monitor the cooling liquid in the cooling chamber 44 in real time.
If necessary, cooling may also be performed on the coolant, and it is conceivable to use a coolant circulation device and a refrigeration device to implement a temperature control function.
In the embodiment, the base 6 with the bottom surface in the same horizontal plane is erected below the outer pipeline 41 and the centrifugal fan, so that the whole equipment can be erected conveniently under the working condition.
In this embodiment, the volute casing 21 and the centrifugal impeller 22 inside the volute casing are disposed at an upstream or downstream position of the variable frequency motor 23.
As shown in fig. 6, normally, the scroll casing 21 and the centrifugal impeller 22 in the scroll casing 21 are both placed at a position upstream of the inverter motor 23, and in this case, the inverter motor 23 is cooled by adjusting the wind direction by a guide plate; in another case, the volute casing 21 and the centrifugal impeller 22 in the volute casing 21 are disposed at the downstream position of the variable frequency motor 23, and at this time, since the blower air inlet 11 is directly communicated with the variable frequency motor 23, the fluid in the blower can sufficiently wash the motor casing 24 and the bearing cover plates at the two ends, the fluid is guided to the blower air outlet 12 in the axial direction by the guide plate, and the fluid at an appropriate temperature can be obtained more easily by matching with the temperature adjusting device 4.
In the embodiment, when the volute casing 21 and the centrifugal impeller 22 in the volute casing 21 are arranged at the downstream position of the variable frequency motor 23, the position of the fan air outlet 12 is in the axial direction, the center of the outlet end cover plate 32 is provided with a cavity and the position of the air outlet is led out, and the fan casing 13 is simple in structure and can be smaller in size in the coaxial design.
When this embodiment is implemented specifically, fan air outlet 12 position is radial direction, and exit end cover plate 32 is sealed apron, draws forth and pierces through fan casing 13 from spiral case air outlet 212 and derives the air outlet position, and the air outlet does not need extra guide plate water conservancy diversion efficiency high pressure to decrease, can obtain the wind pressure and the flow of bigger limit value, and when cooperation flow adjusting device 5 used, two upper and lower limits of adjusting fluid flow have been promoted to a certain extent, obtain ideal flow more easily.
In the embodiment shown, the inverter motor 23 is operated to draw power from the outside through a high voltage penetration located outside the fan housing 13.
In embodiment 2, as shown in fig. 7, the flow rate adjusting device 5 is arranged on the same longitudinal plane as the inverter motor 23, the flow rate adjusting device 5 comprises an annular baffle 71 for sealing the motor housing 24 and the fan housing 13, the annular baffle 71 is arranged end to end in a staggered manner and is provided with inner flow openings 72 at staggered positions, an adjusting base 51 is arranged at the side of the inner flow openings 72, the flow rate adjusting device further comprises an adjusting baffle 52 which is clamped on the adjusting base 51 and is connected with the adjusting base 51 through a sliding rail, and an adjusting electric control unit for driving the adjusting baffle 52 to slide; the adjusting electric control unit comprises a motor 54 arranged outside the fan shell 13, the motor 54 is used for driving a transmission shaft 55 penetrating through the fan shell 13 and extending into the fan, a gear 56 is arranged at the tail end of the transmission shaft 55, a strip-shaped gear slide bar 57 in the same direction as the sliding direction of the adjusting baffle plate 52 is further arranged on the adjusting baffle plate 52, the gear 56 and the gear slide bar 57 are matched and meshed with each other, the adjusting baffle plate 52 is matched with the inner flow opening 72, and the contact surface is smooth and flat.
In the specific implementation of this embodiment, a sealed space with an opening, that is, an internal flow opening 72, is built between the motor housing 24 and the fan housing 13 through the annular baffle 71, and is opened and closed under the driving of the motor 54 by using the structures of the adjusting base 51 and the adjusting baffle 52, so that the actual fluid flow is controlled, and the actual fluid flow is adjusted together by matching with the variable frequency motor 23.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (10)
1. The utility model provides a take flow and temperature regulation's centrifugal fan, is including the centrifugal fan who has fan air intake and fan air outlet, its characterized in that: the variable frequency electric fan comprises a volute, a centrifugal impeller and a variable frequency motor, wherein the volute, the centrifugal impeller and the variable frequency motor are embedded in a fan shell; the volute comprises a volute air inlet and a volute air outlet, the volute air inlet is communicated with the fan air inlet, the volute air outlet is communicated with the fan air outlet, an inlet end cover plate is arranged at the air inlet end of the fan shell, an outlet end cover plate is arranged at the air outlet end of the fan shell, and a temperature adjusting device for adjusting the temperature of fluid flowing out of the centrifugal fan in a heat exchange mode is arranged at the air outlet of the fan; the flow regulating device capable of regulating the actual flow through by regulating the actual flow through area of the fluid is arranged in the fan or at the air inlet of the fan or the air outlet of the fan.
2. The centrifugal fan with flow and temperature regulation of claim 1, wherein: the flow regulating device is arranged at the air outlet of the volute, comprises a regulating base arranged at the air outlet side of the volute, a regulating baffle clamped on the regulating base and connected with the regulating base through a sliding rail, and a regulating electric control unit for driving the regulating baffle to slide; the adjusting electric control unit comprises a motor arranged outside the fan shell, the motor is used for driving a transmission shaft which penetrates through the fan shell and extends into the fan, a gear is arranged at the tail end of the transmission shaft, a strip-shaped gear sliding strip in the direction consistent with the sliding direction of the adjusting baffle is further arranged on the adjusting baffle, the gear and the gear sliding strip are matched and meshed with each other, the adjusting baffle is matched with the shape of the volute outlet, and the contact surface is smooth and flat.
3. The centrifugal fan with flow and temperature regulation of claim 2, wherein: after the adjusting baffle plate is superposed with the volute air outlet, the actual inflow area of the fluid is A, wherein the area range of A is that A is more than 0 and less than or equal to the opening area of the volute air outlet.
4. The centrifugal fan with flow and temperature regulation of claim 1, wherein: temperature regulation apparatus passes through flange butt joint fan air outlet department open position, temperature regulation apparatus includes outer pipeline, the inside axial direction of outer pipeline evenly lays a plurality of carefully run through outer pipeline inner tube in low reaches, the inner tube is established inside outer pipeline through arranging two splint framves in outer pipeline inside upper reaches and low reaches in outer pipeline, two splint radial seal respectively inside the outer pipeline, form the cooling chamber, the crisscross backwater board that sets up the apical grafting outside pipeline inner wall of upper and lower direction in the cooling chamber sets up from top to bottom the backwater board coincidence position all exceeds outer pipeline axis horizontal position, and the position sets up water inlet and delivery port respectively around the cooling chamber below, in the cooling chamber top, from outer outside the pipe under the visit into the cooling chamber and set up a plurality of temperature sensor.
5. The centrifugal fan with flow and temperature regulation of claim 4, wherein: the cooling chamber is continuously filled with cooling liquid from the water inlet and drained of cooling liquid from the water outlet.
6. The centrifugal fan with flow and temperature regulation of claim 4, wherein: and bases with the bottom surfaces in the same horizontal plane are erected below the outer pipeline and the centrifugal fan respectively.
7. The centrifugal fan with flow and temperature regulation of claim 1, wherein: the volute and the centrifugal impeller in the volute are arranged at the upstream or downstream position of the variable frequency motor.
8. The centrifugal fan with flow and temperature regulation of claim 7, wherein: the air outlet position of the fan is in the axial direction, and the center of the outlet end cover plate is provided with a cavity for guiding out the air outlet position.
9. The centrifugal fan with flow and temperature regulation of claim 7, wherein: when the volute and the centrifugal impeller in the volute are arranged at the downstream position of the variable frequency motor, the air outlet of the fan is in the radial direction, the outlet end cover plate is a sealing cover plate, and the air outlet is led out from the air outlet of the volute and penetrates through the fan shell to lead out the air outlet.
10. The centrifugal fan with flow and temperature regulation of claim 1, wherein: the variable frequency motor is operated to lead in a power supply from the outside through a high-voltage penetrating piece arranged outside the fan shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210221601.XA CN114320976A (en) | 2022-03-09 | 2022-03-09 | Centrifugal fan with flow and temperature regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210221601.XA CN114320976A (en) | 2022-03-09 | 2022-03-09 | Centrifugal fan with flow and temperature regulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114320976A true CN114320976A (en) | 2022-04-12 |
Family
ID=81034022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210221601.XA Pending CN114320976A (en) | 2022-03-09 | 2022-03-09 | Centrifugal fan with flow and temperature regulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114320976A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115727015A (en) * | 2022-11-09 | 2023-03-03 | 江苏航天水力设备有限公司 | Large-scale axial-flow pump convenient to maintain and convenient to realize Internet of things |
| CN115968696A (en) * | 2023-03-21 | 2023-04-18 | 绵阳师范学院 | Greenhouse variable frequency heater |
| CN116123117A (en) * | 2023-03-22 | 2023-05-16 | 广东鑫风风机有限公司 | Centrifugal fan capable of adjusting air flow temperature |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101382323A (en) * | 2007-09-07 | 2009-03-11 | 乐金电子(天津)电器有限公司 | Fan structure for dehumidifier |
| CN201425032Y (en) * | 2009-03-30 | 2010-03-17 | 南通泰慕士服装有限公司 | Frequency converting induced draft fan |
| CN102022749A (en) * | 2010-12-31 | 2011-04-20 | 广东理文造纸有限公司 | Boiler draught fan system |
| CN102221018A (en) * | 2011-06-30 | 2011-10-19 | 福耀玻璃工业集团股份有限公司 | Energy-saving sound-proofing centrifugal fan set |
| CN202660734U (en) * | 2012-07-03 | 2013-01-09 | 天津新华能源设备科技有限公司 | Mining heater unit |
| CN204628098U (en) * | 2015-05-04 | 2015-09-09 | 亿昇(天津)科技有限公司 | A kind of axial force balance also can carry out the centrifugal blower structure of motor cooling |
| CN106524306A (en) * | 2016-11-25 | 2017-03-22 | 青岛海信日立空调***有限公司 | Air pipe machine |
| CN108412799A (en) * | 2018-03-15 | 2018-08-17 | 浙江理工大学 | The compressor case and its volume adjustment method of adjustable axial groove volume |
| CN109281849A (en) * | 2018-09-21 | 2019-01-29 | 江苏双菊风机有限公司 | The centrifugal blower of adjustable discharge pipe air quantity |
| CN109404306A (en) * | 2018-12-29 | 2019-03-01 | 张家港保税区创典炉窑通风设备有限公司 | Cooling centrifugal hot air circulation blower can be carried out to stove inside |
| CN109958648A (en) * | 2019-03-29 | 2019-07-02 | 上海理工大学 | A kind of centrifugal fan that constant pressure flow is adjusted |
| CN209309014U (en) * | 2018-12-21 | 2019-08-27 | 江西绿城罗茨鼓风机有限公司 | The flow regulator of high pressure blower air outlet |
| CN210196084U (en) * | 2019-07-18 | 2020-03-27 | 苏州新捷飞微电机制造有限公司 | Frequency conversion fan |
| CN112855573A (en) * | 2021-03-12 | 2021-05-28 | 南京深度***工程有限公司 | High-pressure axial flow centrifugal fan |
-
2022
- 2022-03-09 CN CN202210221601.XA patent/CN114320976A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101382323A (en) * | 2007-09-07 | 2009-03-11 | 乐金电子(天津)电器有限公司 | Fan structure for dehumidifier |
| CN201425032Y (en) * | 2009-03-30 | 2010-03-17 | 南通泰慕士服装有限公司 | Frequency converting induced draft fan |
| CN102022749A (en) * | 2010-12-31 | 2011-04-20 | 广东理文造纸有限公司 | Boiler draught fan system |
| CN102221018A (en) * | 2011-06-30 | 2011-10-19 | 福耀玻璃工业集团股份有限公司 | Energy-saving sound-proofing centrifugal fan set |
| CN202660734U (en) * | 2012-07-03 | 2013-01-09 | 天津新华能源设备科技有限公司 | Mining heater unit |
| CN204628098U (en) * | 2015-05-04 | 2015-09-09 | 亿昇(天津)科技有限公司 | A kind of axial force balance also can carry out the centrifugal blower structure of motor cooling |
| CN106524306A (en) * | 2016-11-25 | 2017-03-22 | 青岛海信日立空调***有限公司 | Air pipe machine |
| CN108412799A (en) * | 2018-03-15 | 2018-08-17 | 浙江理工大学 | The compressor case and its volume adjustment method of adjustable axial groove volume |
| CN109281849A (en) * | 2018-09-21 | 2019-01-29 | 江苏双菊风机有限公司 | The centrifugal blower of adjustable discharge pipe air quantity |
| CN209309014U (en) * | 2018-12-21 | 2019-08-27 | 江西绿城罗茨鼓风机有限公司 | The flow regulator of high pressure blower air outlet |
| CN109404306A (en) * | 2018-12-29 | 2019-03-01 | 张家港保税区创典炉窑通风设备有限公司 | Cooling centrifugal hot air circulation blower can be carried out to stove inside |
| CN109958648A (en) * | 2019-03-29 | 2019-07-02 | 上海理工大学 | A kind of centrifugal fan that constant pressure flow is adjusted |
| CN210196084U (en) * | 2019-07-18 | 2020-03-27 | 苏州新捷飞微电机制造有限公司 | Frequency conversion fan |
| CN112855573A (en) * | 2021-03-12 | 2021-05-28 | 南京深度***工程有限公司 | High-pressure axial flow centrifugal fan |
Non-Patent Citations (2)
| Title |
|---|
| 江利国等: "《电力机车构造 引导文》", 31 August 2016, 西南交通大学出版社 * |
| 田继兰等: "《化工过程原理及其处理方法探究》", 31 July 2019, 中国原子能出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115727015A (en) * | 2022-11-09 | 2023-03-03 | 江苏航天水力设备有限公司 | Large-scale axial-flow pump convenient to maintain and convenient to realize Internet of things |
| CN115727015B (en) * | 2022-11-09 | 2023-10-24 | 江苏航天水力设备有限公司 | Convenient-to-maintain large axial flow pump convenient for Internet of things |
| CN115968696A (en) * | 2023-03-21 | 2023-04-18 | 绵阳师范学院 | Greenhouse variable frequency heater |
| CN116123117A (en) * | 2023-03-22 | 2023-05-16 | 广东鑫风风机有限公司 | Centrifugal fan capable of adjusting air flow temperature |
| CN116123117B (en) * | 2023-03-22 | 2023-12-12 | 广东鑫风风机有限公司 | Centrifugal fan capable of adjusting air flow temperature |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114320976A (en) | Centrifugal fan with flow and temperature regulation | |
| CN205154679U (en) | Air suspension centrifugal blower | |
| CN106930952A (en) | One kind can adjust circulated water-cooled water pump Special energy-saving electric machine | |
| CN204267277U (en) | Integral type water-cooled intelligent frequency-conversion water pump | |
| CN106415232A (en) | Device for atmosphere conditioning for testing combustion engines, and associated method and use | |
| CN116398452A (en) | Magnetic suspension centrifugal heat pump compressor with wide frequency conversion operation | |
| CN215170851U (en) | High-pressure axial flow centrifugal fan | |
| CN205578296U (en) | Take intercooler's centrifugal compressor | |
| CN215809089U (en) | Intelligent static pressure frequency conversion control system | |
| CN206195549U (en) | Generator and wind power generation equipment | |
| CN207004838U (en) | One kind can adjust circulated water-cooled water pump Special energy-saving electric machine | |
| CN211901013U (en) | Fluid centrifugal through-flow device with external driving source and fan | |
| CN220875301U (en) | Heat pump unit for plant cultivation | |
| CN203404117U (en) | Efficient energy-saving double-suction fan | |
| CN211501083U (en) | High-pressure water pump | |
| CN208870797U (en) | Centrifugal pump with refrigerating function | |
| CN207777062U (en) | A kind of integral type hydraulic turbine automatic flow rate adjusting device | |
| CN221096970U (en) | Centrifugal pump seal cooling device | |
| CN103438015A (en) | High-efficiency and energy-saving double suction fan | |
| CN219953690U (en) | Magnetic suspension centrifugal heat pump compressor with wide frequency conversion operation | |
| CN220763497U (en) | Cooling structure for extrusion die | |
| CN220015503U (en) | Centrifugal pump and circulating heating system for food processing | |
| CN109488611A (en) | A kind of more spiral boosting electric-motor pumps of voltage-regulation type centripetal force | |
| CN111412566B (en) | Air conditioning system for introducing outdoor air | |
| CN221003128U (en) | Vacuum pump shell with heat dissipation function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220412 |
|
| RJ01 | Rejection of invention patent application after publication |