One of the main activities of LLC Company Plazma - complex supply of the enterprises and organizations with the ventilating equipment for various needs.
We offer the following types of fans of the general and special purpose:
- Radial fans
- Axial fans
- Dust fans
- Roof fans
- Mine fans
The fan this mechanical device intended for movement of air on air ducts of air conditioning systems and ventilation, and also for implementation of direct air supply to the room or a suction from the room, and creating difference of pressure necessary for this purpose.
Fans are divided by a design and the principle of action on axial (axial), radial (centrifugal), diametrical, etc. Terms and definitions in accordance with GOST 22270-76.
In size of the air of total pressure created when moving are divided into fans of low pressure (to 1 kPa), the average pressure (from 1 to 3 kPa) and the high pressure (from 3 to 12 kPa).
Fans of low pressure have wheels with the wide sheet shovels bent for bigger efficiency back are characterized by big and average rapidity. Air stream speed in such fans cannot be more than 50 m/s.
Shovels of fans of average pressure can be bent both in the direction of rotation of a wheel, and against the direction of rotation of a wheel. Air stream speed in fans of average pressure can reach 80 m/s.
Fans of high pressure are equipped with the narrow driving wheels resembling compressor superficially. Air stream speed in fans of high pressure can reach 200 m/s.
In the direction of rotation of the driving wheel fans can be the right rotation (the wheel rotates clockwise) and the left rotation (the wheel rotates counterclockwise) i.e. exhaust or stitched fans.
Driving wheels of fans on an inclination of an exit of shovels concerning the direction of rotation can be with the shovels bent forward recurved, and with radial shovels.
Depending on structure of the moved environment and conditions fans share on usual (for movement of nonaggressive gas or air with temperature up to 80 °C and dust content no more than 100 mg/m ³ not containing sticky and fibrous substances), corrosion-resistant (for movement of aggressive gas or air with a temperature up to 80 °C and dust content no more than 100 mg/m ³), heat-resistant (for movement of gases with a temperature from 80 to 200 °C), explosion-proof (for movement of the explosive mixes which are not containing explosive, fibrous and sticky substances which design excludes possibility of explosion in it during the normal work).
On an installation site are subdivided on usual, established on a special support (a frame, the base, etc.), channel, established directly in an air duct and roof, placed on a roof.
The main characteristics of the ventilating equipment are the following parameters:
- consumption of air, m3/h;
- total pressure, Pa;
- frequency of rotation, rpm;
- the power consumption spent for the drive of the fan, kW;
- the efficiency (E) of the fan considering mechanical losses of power on different types of friction in working bodies of the fan, volume losses as a result of leaks through consolidation and aerodynamic losses in a flowing part of the fan;
- level of sound pressure, dB.
Execution of fans to destination and to materials:
| Ispol neniye | Mat rial | Having sent away Nov a wagon train to a nacha ny | Having sent away Nov a wagon train to a nacha ny, at me emy earlier | Maxi molar rate of a ratur feather of a meshch environment hole, °C |
Groups py vzra in opas ache to a sma si1 | Class sy vzra in opas ny zones to a poma shche niya2 | Appointment | Note |
| General nazn of a cheniye | Uglero dipack steel | - | With | 803 | For the movement of air and other inexplosive gas-steam-air environments which are not causing the accelerated corrosion of carbonaceous steel (speed of corrosion is not higher than 0,1 mm a year), with the content of dust and other solid impurity no more than 0,1 g/m ³ for radial fans and no more than 0,01 g/m ³ for the axial fans which are not containing sticky substances and fibrous materials. | |||
| Warmly resistant | Uglero dipack steel | Zh2 |
Zh3 | 200 | ||||
| Corot zionno resistant | Ner to a zhava yushchy steel (12X18 H10T) | K1 To |
80 | For movement of the aggressive inexplosive gazoparo-air mixes which are not causing the accelerated corrosion of carbonaceous steel (speed of corrosion is not higher than 0,1 mm a year), with the content of dust and other solid impurity no more than 0,1 g/m ³, not containing sticky substances and fibrous materials. | ||||
| Corot zionno resistant warmly resistant | Ner to a zhava yushchy steel (12X18 H10T) | K1ZH KZH2 |
K1ZH3 | 200 | ||||
| Explosion of a zashcha shchenny | Uglero dipack steel brass | In B1 |
R I1 |
803 | T1-T44 T1-T35 |
V-Ia V-Ib V-Iia4 |
For movement of gazoparo-air explosive mixes of IIA, IIB of the categories which are not containing the explosives which are not causing the accelerated corrosion of carbonaceous steel and brass (speed of corrosion is not higher than 0,1 mm a year), with the content of dust and other solid impurity no more than 0,1 g/m ³ for radial fans and no more than 0,01 g/m ³ for the axial fans which are not containing sticky substances and fibrous materials. | Are not applicable for movement of gazoparopyle-air mixes from technological installations in which explosive substances heat up higher than temperature of their spontaneous ignition or are under excessive pressure, and also for movement of the mixes containing explosive substances. |
| Explosion of a zashcha shchenny warmly resistant | Uglero dipack steel brass | VZH V1ZH2 |
VZH3 I1-02 |
150 200 |
T1-T3 T1-T2 |
|||
| Explosion of a zashcha shchenny | Alyumi niyevy alloys | BK3 B2 |
K3 | 80 | T1-T4 | V-Ia V-Ib V-IIA |
For movement of gas-steam-air explosive mixes of IIA, IIB of categories (except for explosive mixes with air of coke gas - IIBT1, a propylene oxide - IIBT2, an ethylene oxide - IIBT2, formaldehyde - IIBT2, ethyltrichlorethylene - IIBT2, ethylene - IIBT2, a viniltrikhlorsilen - IIBT3, an etildikhlorsilen - IIBT3) and other mixes according to the conclusion of the design organizations which are not containing the explosives which are not causing the accelerated corrosion of aluminum alloys (speed of corrosion is not higher than 0,1 mm a year) with the content of dust and other solid impurity no more than 0,1 g/m ³, not containing sticky substances and fibrous materials. | Fans from aluminum alloys are not applicable for movement of the gas-steam-air mixes containing iron oxides. |
| Explosion of a zashcha shchenny korro zionno resistant | Ner to a zhava yushchy steel (12X18 H10T) brass | BK1 B4 |
80 | T1-T4 | For movement of gas-steam-air explosive mixes of IIA, IIB of categories of not containing explosives and aggressive gases and vapors polluted by impurity in which the speed of corrosion of stainless steel and brass exceeds 0,1 mm a year, with the content of dust and other solid impurity no more than 0,1 g/m ³ for radial fans and no more than 0,01 g/m ³ for the axial fans which are not containing sticky substances and fibrous materials. | Are not applicable for movement of gazoparopyle-air mixes from technological installations in which explosive substances heat up higher than temperature of their spontaneous ignition or are under excessive pressure, and also for movement of the mixes containing explosive substances. | ||
| Explosion of a zashcha shchenny korro zionno resistant warmly resistant | Ner to a zhava yushchy steel (12X18 H10T) brass | VK1ZH V4ZH2 |
150 200 |
T1-T3 T1-T2 |
||||
| Heat to the Vyya | Uglero dipack steel | P or without about a zn of a cheniye | 80 | For movement of the inexplosive gazoparopylevozdushny environments which are not causing the accelerated corrosion of carbonaceous steel (speed of corrosion is not higher than 0,1 mm a year). | ||||
| Heat to the Vyya of explosion of a zashcha shchenny | Uglero dipack steel brass | PV1 | 80 | T1-T4 | V-Ia V-Ib V-IIA |
For movement of gazoparopylevozdushny explosive mixes of IIA, IIB of categories of not causing accelerated corrosion of carbonaceous steel and brass (speed of corrosion is not higher than 0,1 mm a year). | Are not applicable for movement of gazoparopyle-air mixes from technological installations in which explosive substances heat up higher than temperature of their spontaneous ignition or are under excessive pressure, and also for movement of the mixes containing explosive substances. | |
| Heat to the Vyya of explosion of a zashcha shchenny korro zionno resistant | Ner to a zhava yushchy steel (12X18 H10T) brass | PV4 | 80 |
1 Groups and categories of explosive mixes in accordance with GOST 12.1.011-78.
2 Classes of explosive zones of rooms according to PUE.
3 The maximum temperature of the moved environment for axial fans - plus 40 °C (for tropical execution - 45 °C).
4 Only for radial fans.
5 Only for axial fans.
