CN114222475A - Positive pressure non-magnetic fresh air cooling and dust removing device - Google Patents
Positive pressure non-magnetic fresh air cooling and dust removing device Download PDFInfo
- Publication number
- CN114222475A CN114222475A CN202111513578.3A CN202111513578A CN114222475A CN 114222475 A CN114222475 A CN 114222475A CN 202111513578 A CN202111513578 A CN 202111513578A CN 114222475 A CN114222475 A CN 114222475A
- Authority
- CN
- China
- Prior art keywords
- air
- dust
- temperature
- fresh air
- clean
- 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
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20309—Evaporators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20318—Condensers
Abstract
The invention provides a positive-pressure non-magnetic fresh air cooling and dedusting device, which takes natural air as an air source, adopts the technical treatments of physicochemical mode solid-liquid-gas separation, self-cleaning mode solid-gas separation, low-temperature mode enthalpy-reducing deep dehydration, magnetization mode demagnetization and the like to form low-temperature dry, clean and non-magnetic fresh air, and establishes a natural air purification system; adopting a medium-pressure fan for pressurization treatment to form low-temperature dry, clean and non-magnetic positive-pressure fresh air, inputting the fresh air into a variable-frequency room or an excitation device through a pipeline to replace foul air flow, and meanwhile, arranging a foul air flow outlet on the variable-frequency room or the excitation device to establish a fresh air input replacement and circulation system; a PLC system, a functional module, a touch display screen and a temperature and humidity sensing device are adopted to establish a PLC intelligent control system; the three systems input dry, clean, low-temperature, positive-pressure and flowing fresh air into the variable-frequency room and the excitation device, thereby fundamentally solving the bottleneck of high temperature, dust accumulation and negative pressure of the variable-frequency room or the excitation device.
Description
Technical Field
The invention relates to a positive-pressure non-magnetic fresh air cooling and dedusting device which is widely applied to the technical fields of dehumidification, drying, ventilation, purification, cooling, negative pressure elimination and the like of special large, medium and small variable frequency rooms, electric rooms and distribution rooms of substations, power plants, hydropower stations and the like of power systems, provides fresh air with drying, cleaning, low temperature, flowing and positive pressure for the devices, and realizes the functions of cooling, dedusting and negative pressure elimination.
Background
In large power plants at home and abroad, the frequency conversion room and the excitation device are usually designed into independent sealed spaces, so that the invasion of moisture and dust in the outside air is avoided. Because the heat generated by electrical equipment such as frequency conversion, excitation and the like in the running process is discharged to the outside through a heat radiator at the top of a frequency conversion cabinet or an excitation cabinet, indoor fresh air cannot be supplemented in time, and the air in a frequency conversion room or an excitation device is dirty and poor in liquidity, so that abnormal high-temperature, damp-heat and negative-pressure states in the frequency conversion room or the excitation device are caused; when the cooling fan operates, impurities such as air and dust outside the cabinet body are forcibly sucked into the cabinet, and electrical components such as a power module, a circuit board and the like in the cabinet body generate a stable magnetic field when operating, wherein the magnetic field has the characteristic of capturing dust and impurities, and when the humidity of weather occurs, the phenomena of electric leakage, electric discharge and breakdown are easily generated, so that the misoperation or trip accidents of the frequency converter and the excitation equipment are caused; in order to solve the high-temperature, damp-heat and dust accumulation phenomena commonly existing in the frequency conversion room and the excitation device, a high-power air conditioner or an air-water cooling device is additionally arranged to forcibly cool and dehumidify, but the two modes have certain limitations. For example, one space 100m2The frequency conversion room needs to be provided with a plurality of high-power air conditioners, the annual electric charge loss reaches dozens of ten thousand yuan, and the air conditioners have no function of preventing dust in the frequency converter and the electrical equipment. Secondly, an air-water cooling device is installed, and the device adopts an internal circulation cooling modeThe heat of the frequency converter, the excitation equipment and other electrical elements is replaced, so that the interference of the external environment is avoided, however, the air humidity of the device is increased in the cold/heat exchange process, dust and other impurities in the air are easy to generate a conductive phenomenon, meanwhile, the frequency converter, the excitation equipment and the electrical equipment belong to electronic component products, the requirement on the air humidity is very strict, and certain potential safety hazards exist on core components such as a precise electronic template and a power module in the frequency converter and the electrical equipment; in addition, the air-water cooling device has complex installation process, a large-caliber circulating pipeline needs to be laid on site to achieve the cooling effect of water cooling, some pipelines are hundreds of meters long, the laying and the design of the pipeline are also a large project, the investment is high, and the project cost and the expense exceed the cost price of a frequency converter and electrical equipment.
In summary, high temperature, dust deposition and negative pressure phenomena commonly exist in frequency conversion rooms and excitation devices of various power plants at home and abroad, and the fundamental reasons are that indoor air is not smooth and dirty airflow cannot be discharged outdoors, so that heat generated by electrical components and electrical equipment cannot be timely dissipated, and a vicious circle is formed. How to effectively reduce the temperature, humidity and dust of a frequency conversion chamber and an excitation device; the smoothness of fresh air is ensured; dust and various impurities are reduced from attaching to electrical equipment and electronic elements; the misoperation of a frequency converter and excitation equipment is avoided, and the technical bottleneck which is urgently needed to be solved by various domestic power plants is formed.
Disclosure of Invention
The technical scheme for overcoming the defects and the bottlenecks is as follows: provides a positive pressure non-magnetic fresh air cooling and dedusting device. The device is installed in an outdoor natural environment, natural air is used as an air source, and the device is processed by four units of process technologies, namely physical and chemical mode solid-liquid-gas separation, self-cleaning mode solid-gas separation, low-temperature mode enthalpy reduction deep dehydration, magnetization mode demagnetization and the like, so that low-temperature dry, clean and non-magnetic fresh air is formed, and a natural air purification system is established; the device pressurizes low-temperature dry, clean and non-magnetic fresh air by adopting a medium-pressure fan, so that low-temperature dry, clean and non-magnetic positive-pressure fresh air is formed, the low-temperature dry, clean and non-magnetic positive-pressure fresh air is input to a frequency conversion chamber or an excitation device through a pipeline to replace damp, hot and dirty gas, meanwhile, a damp, hot and dirty gas flow discharge port is arranged in the frequency conversion chamber or the excitation device and is directly discharged to the outside (or the discharge port is connected to a positive-pressure non-magnetic fresh air cooling and dust removal device through a pipeline to perform secondary treatment to form an air circulation system), and a fresh air input replacement and circulation system is established; the device adopts PLC control systems such as a temperature sensing probe, a humidity sensing probe, various power operation modules, a touch display screen and the like, and establishes a PLC intelligent control system. The safe and stable operation of the three systems and the adopted technical scheme of the invention effectively reduce the temperature of the variable frequency chamber and the excitation device, simultaneously carry out dehumidification, dust removal and demagnetization on the excitation device (variable frequency chamber) and maintain the positive pressure ventilation in a room, so that the variable frequency chamber and the excitation device are filled with the positive pressure fresh air which is dry at low temperature, clean, free of magnetism and flowing, and the problems of high temperature, dust deposition and negative pressure of the variable frequency chamber or the excitation device are fundamentally solved.
The natural air purification system comprises a physical and chemical mode solid-liquid-gas separation unit, a self-cleaning mode solid-gas separation unit, a low-temperature mode enthalpy-reducing deep dehydration unit and a magnetization mode degaussing unit.
The materialization mode solid-liquid-gas separation unit is characterized in that S-shaped multi-fold corrugated plates are made of special materials, a plurality of S-shaped multi-fold corrugated plates are regularly and orderly arranged and combined to form a plurality of relatively independent S-shaped air channels which are embedded into a cuboid metal frame with sealed side walls, a water baffle is arranged at the corner of each S-shaped multi-fold corrugated plate to facilitate collection of large-particle water drops and dust particles, a collecting tank for collecting dust, impurities and water drops is arranged at the bottom of the separator to form a solid-liquid-gas separator, and the separator is mounted at an air inlet of a low-temperature drying, clean and non-magnetic positive-pressure fresh air cooling and dust removal device in a bolting mode to form the materialization mode solid-liquid-gas separation unit. The working principle of the unit is as follows: the natural air containing dust and moisture flows through the physical and chemical mode solid-liquid-gas separator and is divided into a plurality of strands of S-shaped track air flows, under the influence of factors such as resistance, friction force, centrifugal force, surface tension of water molecules, air inertia and the like, the air flows are converged at the water baffles of the S-shaped corrugated plates to form a settling area (the settling area is formed at each S-shaped bent water baffle), the water molecules in the air flows form water films or water drops in the settling area, and the air continuously flows downstream by bypassing the settling area of the water baffles under the action of the centrifugal force. Because the continuous flow of air current, water film and water droplet are growth trend, when the self gravity of water droplet surpassed gaseous buoyancy that rises, the water droplet will slide down from the breakwater, gets into the water droplet collecting vat. The materialization mode solid-liquid-gas separation unit has the same effect on dust particles in air, when the dust particles in the air enter the materialization mode solid-liquid-gas separator along with air flow, the dust particles generate larger centrifugal force when entering an S-shaped bend due to higher mass and specific gravity, impact the water baffle at high speed under the action of the centrifugal force, are retained in a settling area at the water baffle, are mixed with water drops and finally flow into the water drop collecting tank along with the water drops. And the liquid water and dust particles which are not filtered flow through the next S-shaped bent part to be collected again. Large particle dust and partial water molecules in natural air are primarily separated through the unit to form relatively dry, clean and low-temperature fresh air.
The self-cleaning mode solid-gas separation unit consists of a carbon fiber filter screen, an intelligent mechanical arm controlled by a PLC program, a double rail and a sliding block with a longitudinal-transverse running track, an intelligent dust hood controlled by the PLC program, a dust suction fan, a dust blowing fan head and a dust blowing fan, and separates tiny dust particles and other impurities in fresh air from the air, removes the dust particles and other impurities and realizes that filtered gas reaches a relatively dry clean state. The technical route of the self-cleaning mode solid-gas separation unit operation is as follows: the dust hood, the dust blowing fan head and the intelligent control mechanical arm are designed into an integrated structure, the dust hood is installed on the windward side of the carbon fiber filter screen, the dust blowing fan head is installed on the leeward side of the carbon fiber filter screen (the dust blowing fan head and the dust hood execute double-track corresponding synchronous displacement setting), the double tracks of the dust hood, the dust blowing fan head, the longitudinal-transverse running track and the sliding block are intelligently controlled by a PLC program and run synchronously according to a regular and ordered running track, the dust blowing fan intelligently controlled to run by the PLC provides high-pressure and large-flow air source power for the dust blowing fan head, the back blowing is carried out on the filter screen on the leeward side of the carbon fiber filter screen, and dust particles adsorbed on the windward side of the filter screen are blown off and stripped. Meanwhile, a mechanical arm, a dust blowing fan head and a dust hood which are intelligently controlled by a PLC program synchronously move up and down, left and right on the corresponding surface of the carbon fiber self-cleaning filter screen, and the fallen dust particles are collected by the dust hood, are uniformly recovered by the dust suction fan and are intensively discharged, so that the permeability of the carbon fiber filter screen is ensured by the automatic cleaning and purifying mode of the filter screen, and the unit filters gas to reach a clean state.
The low-temperature mode enthalpy-reducing deep dehydration unit comprises: the heat exchanger comprises an air purifying chamber, a heat exchange chamber, a compressor, a condenser, a cooling fan, an evaporator and a water collecting tank, wherein the air purifying chamber and the heat exchange chamber are designed into two independent sealed spaces; evaporimeter, water catch bowl arrange in the clean air room, and compressor, condenser, radiator fan arrange in the heat transfer room, and the heat that compressor and condenser produced is swept through radiator fan, and the heat is discharged the heat transfer room to guarantee compressor unit's even running. The working principle of the unit is as follows: the clean air generated by the self-cleaning mode solid-gas separation unit directly enters the air purifying chamber, the clean air performs cold/heat exchange with the evaporator in the air purifying chamber, the relatively high-temperature and damp-heat clean air is further frozen and treated at low temperature, the frozen clean air is reduced in temperature, the moisture is deeply separated, the enthalpy ratio of the air is greatly reduced, the condensed water is discharged out of the air purifying chamber through the water collecting tank, and the air discharged from the air purifying chamber forms low-temperature and dry clean air.
The magnetizing and demagnetizing unit is formed by sequentially arranging and combining a certain number of permanent magnetic bars and embedding the permanent magnetic bars into a pipeline type stainless steel shell to form a magnetizing and demagnetizing device, and is arranged in front of an air suction port of a secondary pressurizing fan of the positive-pressure non-magnetic fresh air cooling and dust removing device in a bolting mode. The unit adsorbs magnetic substances, iron dust powder or charged particles contained in low-temperature and dry clean air according to the physicochemical characteristics of the permanent magnet, and after the unit is magnetized and demagnetized, the low-temperature and dry clean air forms low-temperature dry clean non-magnetic fresh air. The potential safety hazard of a frequency converter and electrical equipment caused by the fact that magnetic substances, scrap iron powder or charged particles enter a frequency conversion chamber, an excitation device and the electrical equipment along with airflow is avoided.
The fresh air input replacement and circulation system is composed of a secondary pressurizing fan, a fresh air conveying pipeline, a fresh air input interface of a variable frequency room or excitation device and an indoor air discharge port. The technical route of the system is as follows: the low-temperature dry, clean and non-magnetic fresh air is subjected to secondary pressurization treatment by a medium-pressure high-power fan to reach a certain pressure and flow rate, so that low-temperature dry, clean and non-magnetic positive-pressure fresh air is formed, the low-temperature dry, clean and non-magnetic positive-pressure fresh air is input into a variable-frequency or excitation device through a fresh air conveying pipeline and a fresh air input interface of the variable-frequency or excitation device, and a foul gas outlet is opened at a corresponding position on the top of the variable-frequency or excitation device. The low-temperature, dry, clean and non-magnetic fresh air replaces high-temperature, damp-heat and dirty air flow and harmful impurities in the frequency conversion room or the excitation device at a certain flow speed and flow (PLC intelligent regulation) and enables indoor air to generate certain fluidity, so that the effects of cooling, dedusting and eliminating negative pressure in the frequency conversion room or the excitation device are realized, and the safe and stable operation of indoor electrical equipment is guaranteed.
The PLC intelligent control system is composed of a PLC host, a PLC functional module, an electromechanical device and electric elements related to a power distribution system. The positive-pressure non-magnetic fresh air cooling and dedusting device is characterized in that the operation of a natural air purification system, a positive-pressure fresh air replacement system and a circulation system is input into a PLC system through a complete operation program designed by a CPU, meanwhile, a touch display screen is arranged, the operation state of equipment and related components is monitored in real time, the operation parameters of each control node are displayed, the operation parameters and modes of the PLC system, a PLC module, electromechanical equipment and related components can be corrected and adjusted in time according to the operation parameters, a PLC intelligent system is established, temperature and humidity and air quality parameter indexes in a frequency conversion room or excitation device are conducted to the PLC control system through a temperature and humidity sensing device, and the PLC control system intelligently adjusts the input air quantity and air speed of a secondary booster fan or the operation parameters and modes of starting/stopping according to feedback parameters and analysis results; the low-temperature enthalpy-reduction deep dehydration unit timely adjusts the running time of the evaporator, the rotating speed of the fan or the running mode of starting/stopping according to the feedback parameters and the analysis result so as to guarantee the dry humidity index requirement of fresh air; the self-cleaning mode solid-gas separation unit is set with an operation mode of interval time periods by a PLC system, and simultaneously, the operation modes of the dust blowing fan, the dust blowing fan head, the dust collection fan, the dust collection cover and the mechanical arm are set to be an orderly integrated operation mode. The system realizes whole-course intelligent control of the low-temperature drying, clean and non-magnetic positive-pressure fresh air cooling and dust removal devices, manual operation is not needed, and an automatic/manual conversion device is additionally arranged for special state or emergency starting.
The technical principle and the technical route of the patent of the invention are further explained by combining the drawings and the examples.
Drawings
FIG. 1 is a block diagram of technical principles and technical lines
FIG. 2 Assembly front view
FIG. 3 assembled top view
FIG. 4 Assembly left side view
FIG. 5 is a schematic diagram of a frequency conversion room
Detailed Description
The above drawings are only for illustrating the embodiments of the present invention, and the detailed description of the structure and features of the present invention will be made with reference to the drawings.
Fig. 1 is a block diagram showing technical features and technical principles of the present invention, which is a general framework of an embodiment of the present invention.
The invention provides a positive-pressure non-magnetic fresh air cooling and dedusting device. The device adopts natural air as an air source, and a natural air purification system 100 is established through units of physicochemical mode solid-liquid-gas separation, self-cleaning mode solid-gas separation, low-temperature mode enthalpy-reducing deep dehydration, magnetization mode demagnetization and the like; pressurizing low-temperature dry, clean and non-magnetic fresh air by adopting a medium-pressure fan to reach certain pressure and flow (PLC intelligent control), inputting the fresh air into a variable-frequency room or an excitation device through a fresh air pipeline to displace dirty air flow, and meanwhile, arranging a dirty air flow outlet in the variable-frequency room or the excitation device (or connecting the outlet into an air inlet of the device through a pipeline to perform secondary treatment to form a circulating system) to establish a fresh air input displacement and circulation system 200; the device adopts PLC control systems such as a temperature sensing probe, a humidity sensing probe, various power operation modules, a touch display screen and the like, and establishes a PLC intelligent control system 300.
In conclusion, the safe and stable operation of the three systems not only reduces the temperature of the frequency conversion room and the excitation device, but also reduces the temperature, simultaneously dehumidifies, removes dust, demagnetizes and ventilates, and conveys low-temperature, clean and dry cold air to the frequency conversion room and the excitation device, so that the frequency conversion room and the excitation device are filled with dry, clean, low-temperature, positive-pressure and flowing fresh air, and the problems of high temperature, dust accumulation and negative pressure of the frequency conversion room or the excitation device are fundamentally solved.
As shown in FIGS. 2 to 4, the physicochemical mode solid-liquid-gas separation unit 101 is made of an S-shaped multi-fold corrugated plate made of a special material, and is formed with a plurality of relatively independent air channels by regular and ordered arrangement and combination, and is embedded to the front and back (windward side) through
A leeward side) and sealed side walls, wherein a water baffle is arranged at the corner of each S-shaped multi-fold corrugated plate in a cuboid metal frame, so that large-particle water drops can be collected conveniently, a dust, impurity and water drop collecting tank is arranged at the lower bottom of the cuboid metal frame and is cleaned periodically to form a physical and chemical mode solid-liquid-gas separator, the physical and chemical mode solid-liquid-gas separator is mounted at the air inlet of the positive-pressure non-magnetic fresh air cooling and dust removing device in a bolting mode to form a physical and chemical mode solid-liquid-gas separation unit; the working principle of the unit is as follows: the natural air containing dust and moisture flows through the physical and chemical mode solid-liquid-gas separator and is divided into a plurality of strands of S-shaped movement track air flows, the air flows are converged at the water baffle plate of the S-shaped corrugated plate to form a settling area under the influence of factors such as resistance, friction, centrifugal force, surface tension of water molecules, air inertia and the like, (each S-shaped bending part forms the settling area), the water molecules in the air flows form water films or water drops in the settling area, and the air continuously flows downstream by bypassing the settling area of the water baffle plate under the action of the centrifugal force. Due to the continuous flow of the gas stream, the water film and droplets gradually develop into larger liquid droplets. When the self gravity of the liquid water drops exceeds the buoyancy of the gas to rise, the water drops slide down from the S-shaped multi-fold corrugated plate and enter the water drop collecting tank. Physical and chemical mode solid-liquid-gas separationThe separator has equal effectiveness against dust particles in the air. When dust particles in air enter the physicochemical mode solid-liquid-gas separator along with airflow, a larger centrifugal force is generated when the dust particles enter the S-shaped bend due to larger mass and specific gravity of the dust particles, the dust particles impact the water baffle at high speed under the action of the centrifugal force, and the dust particles are retained in a settling area at the water baffle and mixed with water drops to flow into the collecting tank together. And the liquid water and dust particles which are not filtered out flow through the next S-shaped bent part to be collected again. Large particle dust and partial water molecules in natural air are primarily separated through the unit to form relatively dry and clean fresh air.
As shown in fig. 2 to 4, the self-cleaning mode solid-gas separation units 102 to 109 are composed of a carbon fiber filter screen 102, an intelligent mechanical arm 109 controlled by a PLC program, a double track and a slider of a longitudinal-transverse movement track, an intelligent dust hood 103 controlled by the PLC program, a dust suction fan 105, a dust blowing fan head 106, and a dust blowing fan 108, and separate and filter out tiny dust particles and impurities in fresh air to realize that filtered air flow reaches a cleaning state. The technical route of the self-cleaning mode solid-gas separation unit operation is as follows: the dust hood 103, the dust blowing fan head 106 and the intelligent control mechanical arm 109 are designed into an integrated structure, the dust hood 103 is installed on the windward side of the carbon fiber filter screen 102, the dust blowing fan head 106 is installed on the leeward side of the carbon fiber filter screen 102 (the dust blowing fan head and the dust hood perform double-track corresponding synchronous displacement setting), the dust hood 103, the dust blowing fan head 106, the double tracks of the longitudinal-transverse running track and the sliding block are controlled by a PLC intelligent program and run synchronously according to the regular and ordered running tracks, the dust blowing fan 108 which is intelligently controlled by the PLC to run provides high-pressure and large-flow air source power for the dust blowing fan head, the filter screen is subjected to back blowing on the leeward side of the carbon fiber filter screen 102, and dust particles adsorbed on the windward side of the filter screen are blown down and stripped. Meanwhile, the mechanical arm 109, the dust blowing fan head 106 and the dust hood 103 which are intelligently controlled by a PLC program synchronously move up and down, left and right on the corresponding surface of the carbon fiber self-cleaning filter screen, and the fallen dust particles are collected by the dust hood and are uniformly recovered and intensively discharged by the dust suction fan, so that the permeability of the carbon fiber filter screen is ensured by the automatic cleaning and purifying mode of the filter screen, and the unit filters airflow to reach a clean state.
As shown in fig. 2 to 4, the low-temperature-mode enthalpy-reducing deep dehydration unit 117 includes: the heat exchanger comprises an air purifying chamber, a heat exchange chamber, a compressor, a condenser, a cooling fan, an evaporator and a water collecting tank, wherein the air purifying chamber and the heat exchange chamber are designed into two independent sealed spaces; evaporimeter, water catch bowl arrange in the clean air room, and compressor, condenser, radiator fan arrange in the heat transfer room, and the heat that compressor and condenser produced is swept through radiator fan, and the heat is discharged the heat transfer room to guarantee compressor unit's even running. The working principle of the unit is as follows: the clean air generated by the self-cleaning mode solid-gas separation unit directly enters the air purifying chamber, the clean air performs cold/heat exchange with the evaporator in the air purifying chamber, the relatively high-temperature and damp-heat clean air is frozen and treated at low temperature, the temperature of the frozen clean air is reduced, the gas/water molecule is deeply separated, the enthalpy ratio of the air is greatly reduced, the water condensed by the unit is discharged from the air purifying chamber through the water collecting tank, and the treated clean air forms low-temperature and dry clean air.
As shown in fig. 2 to 4, the magnetization and demagnetization units 114 to 116 are formed by sequentially arranging and combining a certain number of permanent magnetic rods 115, inserting them into a stainless steel pipe casing to form a magnetization and demagnetization device 116, and bolting them to the front of the suction inlet of the secondary pressure fan 201. The unit adsorbs magnetic substances, iron dust powder or charged particles contained in low-temperature and dry clean air according to the physicochemical characteristics of the permanent magnet, and after the unit is magnetized and demagnetized, the low-temperature and dry clean air forms low-temperature dry clean non-magnetic fresh air. The potential safety hazard of a frequency converter and electrical equipment caused by the fact that magnetic substances, scrap iron powder or charged particles enter a frequency conversion chamber, an excitation device and the electrical equipment along with airflow is avoided.
As shown in FIGS. 2 to 5, the fresh air input replacement and circulation system 200 is composed of a secondary booster fan, a fresh air conveying pipeline, a fresh air input interface of a variable frequency chamber or an excitation device and indoor foul air discharge ports 201 to 204. The technical route of the system; the low-temperature dry, clean and non-magnetic fresh air is pressurized for the second time by the medium-pressure high-power fan 201 to reach a certain pressure and flow rate, so that the low-temperature dry, clean and non-magnetic positive-pressure fresh air is formed and is input into the variable-frequency or excitation device through the fresh air conveying pipeline 202 and the variable-frequency or excitation device fresh air input interface 203. And a dirty gas outlet 204 is opened at a corresponding position at the top of the variable frequency or excitation device. The low-temperature, dry, clean and non-magnetic fresh air replaces high-temperature, damp-heat and dirty air flow and harmful impurities in the variable-frequency room or the excitation device at a certain flow speed and flow (PLC intelligent regulation) to realize the functions of cooling, dedusting, negative pressure elimination and air smoothness in the variable-frequency room or the excitation device, and meanwhile, the variable-frequency room or the excitation device is filled with the low-temperature dry, clean and non-magnetic positive-pressure fresh air with the flowing property, so that the safe and stable operation of indoor electrical equipment is guaranteed.
As shown in fig. 1 to 2, the PLC intelligent control system 300 according to the present invention is composed of a PLC host, a PLC function module, an electromechanical device equipped with the PLC intelligent control system, and an electrical component related to a power distribution system. The positive-pressure non-magnetic fresh air cooling and dedusting device is characterized in that the operation of a natural air purification system, a positive-pressure fresh air replacement system and a circulation system is input into a PLC system through a complete operation program designed by a CPU, meanwhile, a touch display screen is arranged, the operation state of equipment and related components is monitored in real time, the operation parameters of each control node are displayed, the operation parameters and modes of the PLC system, a PLC module, electromechanical equipment and related components can be corrected and adjusted in time according to the operation parameters, a PLC intelligent system is established, temperature and humidity and air quality parameter indexes in a frequency conversion room or excitation device are conducted to the PLC control system through a temperature and humidity sensing device, and the PLC control system intelligently adjusts the input air quantity and air speed of a secondary booster fan or the operation parameters and modes of starting/stopping according to feedback parameters and analysis results; the low-temperature enthalpy-reduction deep dehydration unit timely adjusts the running time of the evaporator, the rotating speed of the fan or the running mode of starting/stopping according to the feedback parameters and the analysis result so as to guarantee the dry humidity index requirement of fresh air; the self-cleaning mode solid-gas separation unit is set with an operation mode of interval time periods by a PLC system, and simultaneously, the operation modes of the dust blowing fan, the dust blowing fan head, the dust collection fan, the dust collection cover and the mechanical arm are set to be an orderly integrated operation mode. The system realizes whole-course intelligent control of the low-temperature drying, clean and non-magnetic positive-pressure fresh air cooling and dust removal devices, manual operation is not needed, and an automatic/manual conversion device is additionally arranged for special state or emergency starting.
The PLC intelligent control system is composed of a PLC host, a PLC functional module, electromechanical equipment of the device and electric elements related to a power distribution system. The positive-pressure non-magnetic fresh air cooling and dedusting device is characterized in that the operation of a natural air purification system, a positive-pressure fresh air replacement system and a circulation system is input into a PLC system through a complete operation program designed by a CPU, meanwhile, a touch display screen is arranged, the operation state of equipment and related components is monitored in real time, the operation parameters of each control node are displayed, the operation parameters and modes of the PLC system, a PLC module, electromechanical equipment and related components can be corrected and adjusted in time according to the operation parameters, a PLC intelligent system is established, various parameter indexes such as temperature and humidity and air quality in a frequency conversion room or an excitation device are conducted to the PLC control system through a temperature and humidity sensing device, and the PLC control system intelligently adjusts the input air volume and air speed of a secondary booster fan or the operation parameters and modes of starting/stopping according to the fed back parameters and analysis results; the low-temperature enthalpy-reduction deep dehydration unit timely adjusts the running time of the evaporator, the rotating speed of the fan or the running mode of starting/stopping according to the feedback parameters and the analysis result so as to guarantee the dry humidity index requirement of fresh air; the self-cleaning mode solid-gas separation unit is set with an operation mode of interval time periods by a PLC system, and simultaneously, the operation modes of the dust blowing fan 108, the dust blowing fan head 106, the dust collection fan 105, the dust collection cover 103 and the mechanical arm 109 are set to be an orderly integrated operation mode. The system realizes the whole-course intelligent control of the positive-pressure non-magnetic fresh air cooling and dust removal device, and is additionally provided with an automatic/manual switching device for special state or emergency starting.
Claims (8)
1. The invention provides a positive-pressure non-magnetic fresh air cooling and dedusting device; the device is installed in an outdoor natural environment, natural air is used as an air source, water, dust, magnetic particles and various impurities in the natural air are removed through the process technologies of physicochemical mode solid-liquid-gas separation, self-cleaning mode solid-gas separation, low-temperature mode enthalpy reduction deep dehydration, magnetization mode demagnetization and the like, and meanwhile, the temperature and the humidity of the natural air are reduced, so that low-temperature dry, clean and non-magnetic fresh air is formed, and a natural air purification system is established; the device adopts a medium-pressure fan to pressurize fresh air which is dried at low temperature and clean and has no magnetism, so that the fresh air is formed into positive-pressure fresh air which is dried at low temperature and clean and has no magnetism, and the positive-pressure fresh air is input into a variable-frequency room or an excitation device through a pipeline to replace foul air flow; the device adopts PLC control systems such as a temperature sensing probe, a humidity sensing probe, various power operation modules, a touch display screen and the like to establish a PLC intelligent control system; the three systems effectively reduce the temperature of the frequency conversion chamber and the excitation device and simultaneously establish the effects of dust removal, dehumidification, demagnetization, air circulation and the like, so that the frequency conversion chamber and the excitation device are filled with dry, clean, low-temperature, positive-pressure and flowing positive-pressure fresh air, and the phenomena of high temperature, dust accumulation and negative pressure of the frequency conversion chamber or the excitation device are fundamentally solved.
2. The natural air purification system as claimed in claim 1, which is composed of an physicochemical mode solid-liquid-gas separation unit, a self-cleaning mode solid-gas separation unit, a low-temperature mode enthalpy-reducing deep dehydration unit and a magnetization mode degaussing unit; the system effectively removes moisture, dust, magnetic particles and various impurities in natural air, and simultaneously reduces the temperature and the humidity of the natural air, so that low-temperature dry, clean and non-magnetic fresh air is formed.
3. The physicochemical mode solid-liquid-gas separation unit as defined in claims 1 and 2, which is made of special material to form S-shaped multi-fold corrugated plate, and is formed by regularly and orderly arranging and combining to form multiple independent S-shaped air channels, and embedding the S-shaped air channels to front and back (windward side) through
A leeward side) and sealed side walls, wherein a plurality of water baffles are respectively arranged on the two side walls in a cuboid metal frame, and a dust, impurity and water drop collecting tank is arranged at the bottom of the cuboid metal frame to form a physicochemical mode solid-liquid-gas separator; the working principle of the unit is as follows: dust-containing and moist natural air flows through a physical and chemical mode solid-liquid-gas separator to form a plurality of strands of air flows with S-shaped motion tracks, the air flows are converged at the water baffles of the S-shaped corrugated plates to form a settling area due to the restriction and influence of factors such as resistance, friction, centrifugal force, water molecule surface tension, air inertia and the like, meanwhile, water molecules in the moist air flows are gathered into water films or water drops (the settling area is formed at each S-shaped bent water baffle), the water molecules in the air flows form the water films or the water drops in the settling area, and when the self gravity of the water films and the water drops exceeds the buoyancy of the air, the water drops slide down from the water baffles and enter a water drop collecting tank; the materialization mode solid-liquid-gas separation unit has the same effect on dust particles in air, when the dust particles in the air enter the materialization mode solid-liquid-gas separator along with air flow, as the mass and specific gravity of the dust particles are generally higher, a larger centrifugal force is generated when the dust particles enter an S-shaped bend, the dust particles impact a water baffle at a high speed under the action of the centrifugal force, are retained in a settling area at the water baffle and are mixed with water drops, and finally flow into a water drop collecting tank along with the water drops, and liquid water drops and dust particles which are not filtered flow through the next S-shaped bend and are collected again; large particle dust in natural air and partial water molecules in the air form relatively dry and clean fresh air through the primary separation of the unit.
4. The self-cleaning mode solid-gas separation unit as claimed in claims 1 and 2, which is composed of a carbon fiber filter screen, an intelligent mechanical arm controlled by a PLC program, a double track and a slide block of a longitudinal-transverse running track, an intelligent dust suction hood controlled by the PLC program, a dust suction fan, a dust blowing fan head and a dust blowing fan, and is used for separating and removing tiny dust particles and impurities in fresh air to realize that a filtered air flow reaches a clean state; the technical route of the self-cleaning mode solid-gas separation unit operation is as follows: the dust hood, the dust blowing fan head and the intelligent control mechanical arm are designed into an integrated structure, the dust hood is installed on the windward side of the carbon fiber filter screen, the dust blowing fan head is installed on the leeward side of the carbon fiber filter screen (the dust blowing fan head and the dust hood execute double-track corresponding synchronous displacement setting), the double tracks of the dust hood, the dust blowing fan head, the longitudinal-transverse running track and the sliding block are intelligently controlled by a PLC program and run synchronously according to a regular and ordered running track, the dust blowing fan intelligently controlled to run by the PLC provides high-pressure and large-flow air source power for the dust blowing fan head, the back blowing is carried out on the filter screen on the leeward side of the carbon fiber filter screen, and dust particles adsorbed on the windward side of the filter screen are blown off and stripped. Meanwhile, a mechanical arm, a dust blowing fan head and a dust hood which are intelligently controlled by a PLC program synchronously move up and down, left and right on the corresponding surface of the carbon fiber self-cleaning filter screen, and the fallen dust particles are collected by the dust hood, are uniformly recovered by the dust suction fan and are intensively discharged, so that the permeability of the carbon fiber filter screen is ensured by the automatic cleaning and purifying mode of the filter screen, and the unit filters airflow to reach a clean state.
5. The low-temperature mode enthalpy-reducing deep dehydration unit according to claims 1, 2, comprising: the heat exchanger comprises an air purifying chamber, a heat exchange chamber, a compressor, a condenser, a cooling fan, an evaporator and a water collecting tank, wherein the air purifying chamber and the heat exchange chamber are designed into two independent sealed spaces; evaporimeter, water catch bowl arrange in the clean air room, and compressor, condenser, radiator fan arrange in the heat transfer room, and the heat that compressor and condenser produced is swept through radiator fan, and the heat is discharged the heat transfer room to guarantee compressor unit's even running. The working principle of the unit is as follows: the clean air generated by the self-cleaning mode solid-gas separation unit directly enters the air purifying chamber, the clean air performs cold/heat exchange with the evaporator in the air purifying chamber, the relatively high-temperature and damp-heat clean air is further frozen and treated at low temperature, the frozen clean air is reduced in temperature, the moisture is deeply separated, the enthalpy ratio of the air is greatly reduced, the condensed water is discharged out of the air purifying chamber through the water collecting tank, and the air discharged from the air purifying chamber forms low-temperature and dry clean air.
6. The magnetizing and demagnetizing unit as set forth in claims 1 and 2 is formed by sequentially arranging and combining a certain number of permanent magnetic rods into a pipeline type stainless steel casing to form a magnetizing and demagnetizing device, and installing the magnetizing and demagnetizing unit in front of an air suction inlet of a secondary pressurizing fan of a positive pressure fresh air temperature-reducing and dedusting device in a bolting mode; the unit adsorbs magnetic substances, iron dust powder or charged particles contained in low-temperature and dry clean air according to the physicochemical characteristics of the permanent magnet, and after the unit is magnetized and demagnetized, the low-temperature and dry clean air forms low-temperature dry clean non-magnetic fresh air. The potential safety hazard of a frequency converter and electrical equipment caused by the fact that magnetic substances, scrap iron powder or charged particles enter a frequency conversion chamber, an excitation device and the electrical equipment along with airflow is avoided.
7. The fresh air input replacement and circulation system as claimed in claim 1, which comprises a secondary pressure fan, a fresh air delivery pipeline, a fresh air input interface of a variable frequency or excitation device and an indoor air discharge port; the technical route of the system is as follows: the method comprises the following steps of carrying out secondary pressurization treatment on low-temperature dried and clean non-magnetic fresh air by adopting a medium-pressure high-power fan to reach a certain pressure and flow rate, forming low-temperature dried and clean non-magnetic positive-pressure fresh air, inputting the low-temperature dried and clean non-magnetic positive-pressure fresh air into a variable-frequency or excitation device through a fresh air conveying pipeline and a fresh air input interface of the variable-frequency or excitation device, and opening a foul gas outlet at a corresponding position at the top of the variable-frequency or excitation device; the low-temperature, dry, clean and non-magnetic fresh air replaces high-temperature, damp-heat and dirty air flow and harmful impurities in the frequency conversion room or the excitation device at a certain flow speed and flow (PLC intelligent regulation) and enables indoor air to generate certain fluidity, so that the functions of cooling, dedusting and eliminating negative pressure in the frequency conversion room or the excitation device are realized, and the safe and stable operation of indoor electrical equipment is guaranteed.
8. The PLC intelligent control system as claimed in claim 1, which is composed of a PLC host, a PLC functional module, electromechanical equipment of the device and electrical components related to a power distribution system; the positive-pressure non-magnetic fresh air cooling and dedusting device is characterized in that the operation of a natural air purification system, a positive-pressure fresh air replacement and circulation system is input into a PLC system through a complete operation program designed by a CPU, meanwhile, a touch display screen is arranged, the operation state of equipment and related components is monitored in real time, the operation parameters of each control node are displayed, the operation parameters and modes of a PLC, a module, electromechanical equipment and related components can be corrected and adjusted in time according to the operation parameters, and a PLC intelligent system is established; the system transmits various parameter indexes of temperature, humidity and air quality in a frequency conversion room or an excitation device to a PLC control system through a temperature and humidity sensing device, and the PLC control system intelligently adjusts the input air quantity and the air speed of a secondary booster fan or the operation parameters and modes of starting/stopping according to the fed-back parameters and the analysis result; the low-temperature enthalpy-reduction deep dehydration unit timely adjusts the running time of the evaporator, the rotating speed of the fan or the running mode of starting/stopping according to the feedback parameters and the analysis result so as to guarantee the dry humidity index requirement of fresh air; the self-cleaning mode solid-gas separation unit is set with an operation mode of interval time periods by a PLC system, and simultaneously, the operation modes of the dust blowing fan, the dust blowing fan head, the dust collection fan, the dust collection cover and the mechanical arm are set to be an orderly integrated operation mode; the system realizes the whole-course intelligent control of the positive-pressure non-magnetic fresh air cooling and dust removal device, does not need manual operation, and is additionally provided with an automatic/manual conversion device for special state or emergency starting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111513578.3A CN114222475A (en) | 2021-12-13 | 2021-12-13 | Positive pressure non-magnetic fresh air cooling and dust removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111513578.3A CN114222475A (en) | 2021-12-13 | 2021-12-13 | Positive pressure non-magnetic fresh air cooling and dust removing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114222475A true CN114222475A (en) | 2022-03-22 |
Family
ID=80701276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111513578.3A Pending CN114222475A (en) | 2021-12-13 | 2021-12-13 | Positive pressure non-magnetic fresh air cooling and dust removing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114222475A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115421528A (en) * | 2022-08-09 | 2022-12-02 | 河南众智天诚电力科技有限公司 | Reactive compensation control cabinet with normal temperature dehumidification function |
-
2021
- 2021-12-13 CN CN202111513578.3A patent/CN114222475A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115421528A (en) * | 2022-08-09 | 2022-12-02 | 河南众智天诚电力科技有限公司 | Reactive compensation control cabinet with normal temperature dehumidification function |
| CN115421528B (en) * | 2022-08-09 | 2024-03-08 | 河南众智天诚电力科技有限公司 | Reactive compensation control cabinet with normal temperature dehumidification function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2813106Y (en) | Electric-bag combined dust collector | |
| CN105020793A (en) | Ultrathin air purification device and air purification device installed in combination with air conditioner | |
| CN107910755A (en) | A kind of low-voltage distribution cabinet with dedusting radiator | |
| CN106288010A (en) | Air conditioner integrated machine | |
| CN114222475A (en) | Positive pressure non-magnetic fresh air cooling and dust removing device | |
| CN204967008U (en) | A dehumidification dust removal composite set for looped netowrk cabinet enclosure space | |
| CN201327146Y (en) | Ventilation energy-saving system of pulse dust-removing type machinery room | |
| CN105149095A (en) | Wind generating set's ventilation dust collector and wind generating set | |
| CN106500186A (en) | Indoor set and air quality process unit | |
| CN1532001A (en) | Isoionic air purifier | |
| CN209313217U (en) | A kind of novel low-voltage draw-out type switch cabinet | |
| CN209173587U (en) | A kind of deduster of the heating system with deashing device | |
| CN207755903U (en) | A kind of lithium ion battery separator production line extractor fan | |
| CN215292824U (en) | Compressor convenient to maintain | |
| CN207050126U (en) | Filtration system for electronic instrument room | |
| CN204648509U (en) | The new blower fan of a kind of high-effective dust-removing | |
| CN214581524U (en) | Special fresh air cooling and dust removing device for excitation room between frequency converters of power plant | |
| CN104676766B (en) | A kind of Window frame-type air dehumidifier | |
| CN206593207U (en) | Indoor set and air quality processing unit | |
| CN209431704U (en) | Novel air conditioner in machine room | |
| CN2438499Y (en) | Multifunction purifying apparatus | |
| CN208098378U (en) | A kind of high efficiency electrostatic air purifier | |
| CN203190721U (en) | Air-cooled condenser | |
| CN106524298A (en) | Constant-temperature and constant-humidity purification air conditioning unit | |
| CN106621595A (en) | Air cleaning deduster with fluidization plate apparatus |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220429 Address after: 011500 shangnaohai village, Xindianzi Town, Helingeer County, Hohhot City, Inner Mongolia Autonomous Region Applicant after: Inner Mongolia Helin Power Generation Co.,Ltd. Applicant after: THE BEIJING TANG HONGYUAN TECHNOLOGY Co.,Ltd. Applicant after: New energy branch of Huaneng Qinghai Power Generation Co.,Ltd. Address before: 011500 Inner Mongolia Helin Power Generation Co., Ltd., Xindianzi Town, Helinger County, Hohhot City, Inner Mongolia Autonomous Region Applicant before: Liu Zhenfeng Applicant before: Liang Hongjun Applicant before: Zhu Gengfeng |