DE202022000832U1 - DC high pressure duct fan Multi-piece DC high pressure duct fan unit - Google Patents

Abstract

DC high-pressure tube fan unit, characterized in that a multi-part tube section consisting of individual stainless steel tube segments 1; 2; 5; 13 and if necessary 8, can be plugged into each other.

Description

1. The invention is to be assigned to the technical field "air and air conditioning technology, fans, process air technology".

• https://www.systemair.com/de/support/media-center/ventilatoren/;
• https://www.dasslerventilatoren.de
• https://www.elektror.com/de/anwendunqen/anwendunqsqebiete/

2. The state of the art includes so-called AC and EC in-line fans with radial impellers; types with diagonally or axially arranged blades in the performance class and sizes are rarely used. Air flow rate and possible pressure build-up are usually in the low-pressure range. In systems with external rotor motors, similar tube fans can usually achieve max. pressures of up to approx. 500 Pa with similar sizes/installation space. Individual centrifugal fans (usually one-sided intake with backward-curved blades and narrow impeller) have hitherto been built with directly flanged standard motors or V-belt drives to achieve higher pressures of up to approx. high noise and other disadvantages such as high maintenance costs.
For speed control and thus air volume adjustment, usually conventional, expensive or vulnerable controllers with high technical effort are used, e.g. (Thyristor controllers, frequency converters or heavy and large multi-stage transformer controllers), traditionally used, with each system having certain advantages and disadvantages.
All these and similar fans, which as so-called "pipe fans""tunnelfans";"Jet fan systems" that have been known and used up to now are based on this principle or have been used in this way up to now.
Well-known sources include various manufacturers of named systems/fans which z.Bsp. can be found at the following internet addresses:

• https://www.systemair.com/de/support/media-center/ventilatoren/;
• https://www.dasslerventilatoren.de
• https://www.elektror.com/de/anwendunqen/anwendunqsqebiete/

3. The invention is based on the problem that the available fan types and their geometric and technical properties for tasks z.Bsp. in the area of workpiece or electronics cooling (by means of air flow without active cooling machines) is usually insufficient or difficult due to a lack of tailored solutions, is only possible with great effort or with difficulty. In principle, there is no sensible, flexible system or unit that can be universally used specifically for these and similar tasks, including those that are technically comprehensive. As a rule, an individual solution must always be planned and implemented. There are only a few compact, similar duct fan units, which also have a silencer and integrated control technology, but in the standard case for other ventilation tasks and ie. mostly deviating significantly larger in the geometric dimensions and in terms of the pressure build-up in relation to them or are not designed to be as efficient. As a rule, several fans are then used in parallel or series connection, which leads to increased energy consumption and assembly maintenance costs. Since such "series fans" can usually only achieve insufficient air cooling (e.g. in workpiece cooling), because the air flow is largely ineffectively directed and so a lot is blown "off the mark", so to speak, the necessary flow speed and pressure build-up only can be implemented with larger fans and standard AC motors.
There is no known system that combines and uses DC fans with a comparable pressure build-up and air flow rate for this purpose.

• > Insgesamt als fertige Maschine Bezug nehmend wie in 1 bis 9 dargestellt.
• > Rohrschalldämpfer mit integriertem, wechselbarem und regenerierbarem Filterelement, Bezug nehmend wie in 1 bis 12 unter Ziffer 9,13,14,15 dargestellt.
• > Rohrschalldämpfer mit integrierten und drehbaren Ausblasdüsen wie in 1 bis 9 und 17, Ziffer 1,2,7,15 dargestellt.
• > Rohrventilatorgehäuse mit integrierter Universal-Aufnahmeplatte für unterschiedliche Ventilatortypen, Bezug nehmend auf 1 bis 9 und 16 mit Ziffer 5 und 15 bis19
• > Steuerkasten, welcher mit einem Netzteil bis 600 W Leistung, einem digital/analog Drehzahlregler mit Modbus RTU, einem analog-digital Volumenstrom konstant bzw. Differenzdruckregler, einem Kleinspannungsnetzteil, einem Bluetooth Empfangsteil zur Kanalumschaltung zwischen manuellem oder Automatikbetrieb, sowie diverser nötiger Klemmleisten zur Verdrahtung, ausgestattet ist, in Bezug auf 1 bis 9

4. The following exemplary embodiments are explained as described below:

• > Referring overall as a finished machine as in 1 until 9 shown.
• > Pipe silencer with integrated, replaceable and regenerable filter element, referencing as in 1 until 12 shown under paragraph 9,13,14,15.
• > Pipe silencer with integrated and rotatable outlet nozzles as in 1 until 9 and 17 , digit 1,2,7,15 shown.
• > Tube fan housing with integrated universal mounting plate for different fan types, refer to 1 until 9 and 16 with number 5 and 15 to 19
• > Control box, which is equipped with a power pack with up to 600 W power, a digital/analog speed controller with Modbus RTU, an analog-digital volume flow constant or differential pressure controller, a low-voltage power pack, a Bluetooth receiver for channel switching between manual and automatic operation, and various terminal strips required for wiring , is equipped, regarding 1 until 9

5. The invention can be used mainly for cooling workpieces in working and conveying processes in the production of food and industrial goods.
Furthermore, the unit can be used for heat dissipation and air cooling in machines of any kind that make this necessary, up to conveying medium temperatures of +75°C.
For air cooling of photovoltaic systems in ther Areas with mixed loads, cooling of radio transmission systems, EDP server systems, laboratories, medical technology, ship technology, a sensible use is also possible, whereby here a direct use of electricity from DC low voltage (without transformation) is possible through the use of DC fans is.

6. The invention can be used universally and adapted and constructed as required by the application situation, starting from the basic type 16 -Configuration, reference to 1 until 5 . or as a special configuration with a different air flow as in 6 until 9 or as a single fan module, referring to 16 , shown.

Reference List

1

Pipe end cover made of stainless steel lined with low expansion foam.

2

Pipe on the pressure side Silencer part with air outlet nozzles integrated on the side and Basotec sound absorber core integrated on the inside, as well as inner wall lining with low expansion foam including fastening grid on both sides.

3

C-profile mounting rails

4

2-part pipe fastening clamps

5

Duct part fan basic module piece

6

Plastic control box variant 1

7

Adjustable long throw outlet nozzles

8th

tube angle part

9

mounting grid

10

Metal control box variant 2

11

Mains main switch control

12

Electronic speed controller

13

Suction-side pipe for silencer part with integrated Basotec sound absorber core, as well as inner wall lining with low expansion foam, regenerable suction filter and fastening grid on both sides.

14

Basotec sound absorber core 15. Low expansion foam inner lining

16

Fan universal mounting ring made of metal

17

Fan adapter ring variant 1

18

Fan adapter ring variant 2

19

compact fan

20

Single outlet nozzle for frontal connection

Claims (10)

DC high-pressure tube fan unit, characterized in that a multi-part tube section consisting of individual stainless steel tube segments 1; 2; 5; 13 and if necessary 8, can be plugged into each other. DC high pressure duct fan unit after claim 1 , characterized in that all elements as in claim 1 . named, are also lined inside with sound-absorbing and flame-retardant low-expansion foam material 15, for sound and heat and cold insulation. DC high-pressure tube fan unit according to any one of the preceding claims, characterized in that 2; 13 is additionally fixed with a round, sound-absorbing absorber core 14, preferably made of the material "Basotec", to a continuous threaded rod or the like, firmly and approximately centrically to the fastening grids 9 arranged on the inside in each case. DC high-pressure tube fan unit according to one of the preceding claims, characterized in that in 2, additional lateral bores are present in the longitudinal direction and at a distance from one another, in which z.Bsp. adjustable rubber nozzles 7, or other ventilation valves can be used to achieve a higher flow rate at the outlet openings, so that a sufficient flow of cooling air can be generated. DC high-pressure tube fan unit according to one of the preceding claims, characterized in that the individual stainless steel tube segments 1; 2; 5; 13 and, if required, 8, are fastened to two perforated profiles (or similar) support rails 3 with two-part mounting bracket stainless steel tube clamps 4. DC high-pressure tube fan unit according to one of the preceding claims, characterized in that the control and regulating device switch boxes 6 or, if required, version 10, are mounted on the two-part fastening bracket stainless steel pipe clamps 4, or, if required, on auxiliary construction 21. DC high-pressure tube fan unit according to one of the preceding claims, characterized in that in the basic fan segment 5, fixed inside and centrally, is a circular mounting plate 16, which can optionally accommodate a further adapter ring 17 or 18 as required. This makes it possible to use different fan models 19, in the Install basic fan segment 5 as required. DC high-pressure tube fan unit according to one of the preceding claims, characterized in that instead of the end cover 1, a conical outlet adapter 20 with a single nozzle 7 is installed in order to achieve a large throw distance. In this case/constellation, the outlet openings with nozzle 7 can also be omitted or, if necessary, also be used in addition. DC high-pressure tube fan unit according to one of the preceding claims, characterized in that the regulation and control device 6, or optionally 10, are equipped with a digital fan speed controller 12, which simultaneously transmits a 0-10V speed control signal or PWM control signal or Modbus RTU output provides, furthermore has the option of being able to connect external active or passive sensors to it in order to implement automated speed and air volume control if required. DC high-pressure tube fan unit according to one of the preceding claims, characterized in that the regulation and control device 6, or optionally 10, contain a low-voltage power pack with sufficient power, corresponding to the DC fans 19 used, and a mains power switch 11.

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