CN212155247U

CN212155247U - Fan static pressure frequency conversion control device with constant air volume as reference

Info

Publication number: CN212155247U
Application number: CN202020839495.8U
Authority: CN
Inventors: 王博
Original assignee: Suzhou Bosipu Engineering Technology Co ltd
Current assignee: Suzhou Bosipu Engineering Technology Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2020-12-15
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses a fan static pressure frequency conversion control device with constant air volume as the benchmark, which comprises a fan, a table board and a computer connected with the fan, wherein the computer is arranged on a computer supporting seat, the computer supporting seat is arranged at the top of the table board, the top of the table board is arranged right ahead the computer supporting seat and is provided with a keyboard, one side of the top of the table board, which is arranged at the computer, is provided with a wire arranging block and a wire guiding block from left to right in sequence, and the fan static pressure frequency conversion control device also comprises a dismounting mechanism; the utility model has the advantages that: the quick installation and disassembly of the lead block and the table top are realized through the designed disassembly and assembly mechanism; the inner side surface of the wire guide block is provided with a threading hole for the connecting wire to pass through, so that the mess of the connecting wire during connection is reduced; the bottom of the wire arranging block is fixed with a sucker, so that the wire arranging block can be conveniently mounted and dismounted through the sucker; the surface of the wire arranging block is provided with a plurality of wire arranging openings for the connecting wires to pass through, and the plurality of wire arranging openings are uniformly distributed, so that the better wire arranging of the connecting wires is facilitated.

Description

Fan static pressure frequency conversion control device with constant air volume as reference

Technical Field

The utility model belongs to the technical field of fan static pressure frequency conversion control, concretely relates to use fan static pressure frequency conversion control device of invariable amount of wind as the benchmark.

Background

Aiming at related projects such as heating ventilation, air conditioning, ventilation and the like of clean production places such as pharmaceutical factory buildings, laboratories and the like, an automatic control technology is adopted to realize fine requirements such as constant air quantity, cleanness, energy conservation and the like of a fan.

At present, the automatic control modes of the fan are mainly divided into two categories, namely fixed frequency control and variable frequency control. The fixed frequency control is generally operated according to the full load of rated power after being started, and has the defects of large equipment loss, serious heating, large energy consumption and the like. The frequency conversion control is mainly divided into a frequency conversion control mode with manual given frequency or based on single static pressure or single air volume, the single static pressure control cannot meet the substantial response requirement on the corresponding air volume under various working conditions, and the single air volume control has the conditions of large operating fluctuation range, unstable frequency and the like of the fan.

The utility model discloses technical scheme lies in solving the problem that the automatic control mode energy-conservation nature of fan and the actual effect nature that present trade exists can not compromise. The configuration of the fan unit equipment is different from the configuration of the fan unit equipment, and basically the same from the perspective of an automatic control principle, and most suppliers mostly adopt a higher-end automatic controller or a more friendly visual interface to improve the brand grade, so that the fan unit equipment is more expensive economically, but the fan unit equipment does not enable customers to have better experience and income on functionality and actual efficiency. It may be a single hardware heap, and the logic functions are not deeply customized and carefully considered.

The utility model discloses realize the benchmark amount of wind earlier invariable, satisfy end user's amount of wind reliability requirement, continue on this basis doing static pressure frequency conversion energy-saving control, therefore to with the multiplex condition state, can guarantee the amount of wind sufficient and reliable at first, carry out frequency conversion energy-saving operation control under this operating mode constant amount of wind demand; the utility model discloses two PID control circulation realize air volume control through amount of wind closed-loop control earlier, and rethread static pressure closed-loop control realizes frequency conversion control. The air volume PID control regulation result is used as pressure PID control circulation setting and is simultaneously acted on the fan frequency conversion control function, so that constant and reliable air volume and fan static pressure frequency conversion energy-saving control are realized.

The prior static pressure frequency conversion control device of the fan based on the constant air volume has the following defects when in use:

1. the lead block and the table top are fixed by adhesion, which is not beneficial to realizing the quick assembly and disassembly of the lead block and the table top;

2. the winding displacement block is fixed by screws, which wastes time and labor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fan static pressure frequency conversion control device taking constant air volume as a benchmark, which aims to solve the problem that the wire block and the table top proposed in the background technology are fixed by bonding, thus being not beneficial to realizing the quick assembly and disassembly of the wire block and the table top; the winding displacement piece is fixed through the screw and is wasted time and energy.

In order to achieve the above object, the utility model provides a following technical scheme: a static pressure frequency conversion control device of a fan based on constant air volume comprises the fan, a table board and a computer connected with the fan, the computer is arranged on the computer supporting seat, the computer supporting seat is arranged on the top of the table top, the keyboard is arranged at the top of the table top in front of the computer supporting seat, the top of the table board is provided with a wire arranging block and a wire guiding block from left to right on one side of the computer in sequence, and also comprises a dismounting mechanism, the disassembly and assembly mechanism comprises a lead block, a bulge, a groove, a fixed groove, a first magnet, a fixed block and a second magnet, wherein the surface of the table board is provided with the groove, a fixed block is fastened at the inner bottom of the groove, a fixed groove is arranged at the top of the fixed block, a first magnet is fixed at the inner bottom of the fixed groove, the bottom of the wire block is provided with a bulge arranged in the groove, and the bulge is provided with a second magnet adsorbed with the first magnet.

Preferably, the fixed block and the first magnet are both of cuboid structures, and the groove is a U-shaped groove.

Preferably, the bottom of the table top is fixed with symmetrically distributed supporting legs, a placing seat is arranged on the side surface of each supporting leg, and the host is placed in the placing seat.

Preferably, the computer further comprises a connecting wire for connecting the computer and the host, and the inner side surface of the wire block is provided with a threading hole for the connecting wire to pass through.

Preferably, the bottom of the wire arranging block is fixed with a sucking disc, and the wire arranging block can be fixed on the top of the table top through the sucking disc.

Preferably, the surface of the wire arranging block is provided with a plurality of wire arranging openings for the connecting wires to pass through, and the plurality of wire arranging openings are uniformly distributed.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the quick installation and disassembly of the lead block and the table top are realized through the designed disassembly and assembly mechanism; the inner side surface of the wire guide block is provided with a threading hole for the connecting wire to pass through, so that the mess of the connecting wire during connection is reduced;

(2) the bottom of the wire arranging block is fixed with a sucker, so that the wire arranging block can be conveniently mounted and dismounted through the sucker; the surface of the wire arranging block is provided with a plurality of wire arranging openings for the connecting wires to pass through, and the plurality of wire arranging openings are uniformly distributed, so that the better wire arranging of the connecting wires is facilitated.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a top view of a portion of the table top of the present invention;

FIG. 3 is a schematic side view of the wire arranging block of the present invention;

fig. 4 is an enlarged schematic structural view of the H region in fig. 1 according to the present invention;

in the figure: 1. a fan; 2. a computer support base; 3. a computer; 4. a connecting wire; 5. a wire arranging block; 6. a lead block; 7. a table top; 8. supporting legs; 9. a host; 10. a placing seat; 11. a keyboard; 12. threading holes; 13. a wire arranging port; 14. a suction cup; 15. a protrusion; 16. a groove; 17. fixing grooves; 18. a first magnet; 19. a fixed block; 20. a second magnet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the present invention provides a technical solution: a fan static pressure frequency conversion control device taking constant air volume as a benchmark comprises a fan 1, a table board 7 and a computer 3 connected with the fan 1, wherein the computer 3 is arranged on a computer supporting seat 2, the computer supporting seat 2 is arranged on the top of the table board 7, a keyboard 11 is arranged at the top of the table board 7 and positioned right ahead of the computer supporting seat 2, a wire arranging block 5 and a wire block 6 are sequentially arranged at one side of the computer 3 at the top of the table board 7 from left to right, the fan static pressure frequency conversion control device further comprises a dismounting mechanism, the dismounting mechanism comprises a wire block 6, a bulge 15, a groove 16, a fixing groove 17, a first magnet 18, a fixing block 19 and a second magnet 20, a groove 16 is arranged on the surface of the table board 7, the fixing block 19 is fastened at the inner bottom of the groove 16, the fixing groove 17 is arranged at the top of the fixing block 19, the first magnet 18 is fixed at the, a second magnet 20 which is adsorbed with the first magnet 18 is arranged on the bulge 15; fixed block 19 and first magnet 18 are the cuboid structure, recess 16 is "U" type groove, during the installation of wire piece 6, pick up wire piece 6, insert the recess 16 that the mesa 7 surface was seted up with the arch 15 of wire piece 6 bottom, and make the first magnet 18 in the fixed slot 17 of second magnet 20 on the arch 15 and fixed block 19 adsorb, the quick installation of wire piece 6 and mesa 7 has been realized, when needs take off wire piece 6, pull out wire piece 6, overcome second magnet 20 and first magnet 18 the adsorption affinity can, the quick dismantlement of wire piece 6 and mesa 7 has been realized.

In this embodiment, preferably, the bottom of the table top 7 is fixed with symmetrically distributed support legs 8, a placing seat 10 is arranged on a side surface of each support leg 8, and the host computer 9 is placed inside the placing seat 10, so that the host computer 9 can be conveniently placed.

In this embodiment, preferably, the computer system further includes a connection line 4 connecting the computer 3 and the host computer 9, and the inner side surface of the wire block 6 is provided with a threading hole 12 for the connection line 4 to pass through, so as to reduce the mess of the connection line 4 during connection.

In this embodiment, preferably, the suction cup 14 is fixed at the bottom of the cable arranging block 5, and the cable arranging block 5 can be fixed at the top of the table top 7 through the suction cup 14, so that the cable arranging block 5 can be conveniently mounted and dismounted through the suction cup 14.

In this embodiment, preferably, the surface of the wire arranging block 5 is provided with a plurality of wire arranging ports 13 for the connecting wires 4 to pass through, and the plurality of wire arranging ports 13 are uniformly distributed, so as to facilitate better wire arrangement of the connecting wires 4.

The utility model discloses a theory of operation and use flow: when the lead block 6 is installed, the lead block 6 is taken up, the bulge 15 at the bottom of the lead block 6 is inserted into the groove 16 formed in the surface of the table board 7, and the second magnet 20 on the bulge 15 and the first magnet 18 in the fixing groove 17 of the fixing block 19 are adsorbed, so that the lead block 6 and the table board 7 are quickly installed, and when the lead block 6 needs to be taken down, the lead block 6 is pulled up to overcome the adsorption force of the second magnet 20 and the first magnet 18;

the bottom of the wire arranging block 5 is fixed with a sucking disc 14, the wire arranging block 5 can be fixed on the top of the table-board 7 through the sucking disc 14, the surface of the wire arranging block 5 is provided with a plurality of wire arranging ports 13 for the connecting wires 4 to pass through, and the wire arranging ports 13 are uniformly distributed, so that the connecting wires 4 connected with the computer 3 and the host computer 9 pass through the wire arranging ports 13;

the static pressure frequency conversion control of the fan 1 with constant air volume as the reference adopts a cascade control mode and double PID control circulation, and the air volume control is realized by the air volume closed-loop control and then the frequency conversion control is realized by the static pressure closed-loop control by utilizing the computer 3; the air volume PID control regulation result is set as pressure PID control circulation, and simultaneously acts on the variable frequency control function of the fan 1, so that constant and reliable air volume and static pressure variable frequency energy-saving control of the fan 1 are realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an use fan static pressure variable frequency control device of invariable amount of wind as benchmark, includes fan (1), mesa (7), computer (3) that are connected with fan (1), computer (3) are installed on computer supporting seat (2), place in the top of mesa (7) computer supporting seat (2), the top of mesa (7) is located the dead ahead of computer supporting seat (2) and is provided with keyboard (11), winding displacement piece (5), wire piece (6) are installed from a left side to the right side in proper order to one side that the top of mesa (7) is located computer (3), its characterized in that: still include dismouting mechanism, this dismouting mechanism includes wire piece (6), arch (15), recess (16), fixed slot (17), first magnet (18), fixed block (19) and second magnet (20), recess (16) are seted up on the surface of mesa (7), and the interior bottom fastening of this recess (16) has fixed block (19), fixed slot (17) have been seted up at the top of fixed block (19), and the interior bottom of this fixed slot (17) is fixed with first magnet (18), the bottom of wire piece (6) is provided with arch (15) of arranging in recess (16), and is provided with on arch (15) with first magnet (18) adsorbed second magnet (20) mutually.

2. The static pressure frequency conversion control device of the fan based on the constant air volume as the reference of claim 1 is characterized in that: fixed block (19) and first magnet (18) are the cuboid structure, recess (16) are "U" type groove.

3. The static pressure frequency conversion control device of the fan based on the constant air volume as the reference of claim 1 is characterized in that: the bottom of the table top (7) is fixed with symmetrically distributed supporting legs (8), the side surfaces of the supporting legs (8) are provided with a placing seat (10), and a host (9) is placed inside the placing seat (10).

4. The static pressure frequency conversion control device of the fan based on the constant air volume as the reference of claim 1 is characterized in that: the computer is characterized by further comprising a connecting wire (4) for connecting the computer (3) and the host (9), wherein the inner side surface of the wire block (6) is provided with a threading hole (12) for the connecting wire (4) to pass through.

5. The static pressure frequency conversion control device of the fan based on the constant air volume as the reference of claim 1 is characterized in that: the bottom of the wire arranging block (5) is fixed with a sucker (14), and the wire arranging block (5) can be fixed on the top of the table top (7) through the sucker (14).

6. The static pressure frequency conversion control device of the fan based on the constant air volume as the reference of claim 5 is characterized in that: the surface of the wire arranging block (5) is provided with a plurality of wire arranging openings (13) for the connecting wires (4) to pass through, and the plurality of wire arranging openings (13) are uniformly distributed.