CN205413868U

CN205413868U - Variable blast volume control system

Info

Publication number: CN205413868U
Application number: CN201521086042.8U
Authority: CN
Inventors: 杨龙
Original assignee: Tianjin Chuncheng Laboratory Instrument Manufacturing Co Ltd
Current assignee: Tianjin Chuncheng Laboratory Instrument Manufacturing Co Ltd
Priority date: 2015-12-21
Filing date: 2015-12-21
Publication date: 2016-08-03
Anticipated expiration: 2025-12-21

Abstract

The utility model discloses variable blast volume control system, the power distribution box comprises a box body, mend the fan, the exhaust fan, the electric cabinet, wind speed inductance gauge and converter, the box is located on the horizontal plane, the box includes workstation and front column, one side of box is equipped with the push -and -pull door, the push -and -pull door is sliding connection with the box, the air exit of being connected with the exhaust fan is established to the upper end of box, with mend the benefit general mood pipe that the fan is connected, the both sides of push -and -pull door all are equipped with the front column, the first tonifying qi hole of general mood union coupling is equipped with and mends on the front column, the wind speed inductance gauge is located and is established between two parties at the air exit lower extreme, the signal line of wind speed response instrument links to each other with the electric cabinet, the quantity of converter is two, one of them converter links to each other with the exhaust fan, the another one links to each other with the benefit fan. The utility model discloses can be based on the size of the big or small automatically regulated benefit amount of wind of the volume of airing exhaust, the indoor endosome of excessively not discharging is favorable to keeping room temperature invariant and safe and reliable, and is energy -concerving and environment -protective in addition.

Description

Variable air volume control system

Technical field

This utility model belongs to field of experiment equipment, particularly relates to variable air volume control system.

Background technology

nullDuring chemistry and pharmaceutical experiment，Need the various dusty gass that will discharge in experimentation、Abnormal smells from the patient is got rid of in time，The safety of Protection personnel，Therefore use Ventilating cabinet more，And require more and more higher，Ventilating cabinet has anticorrosion and high temperature resistant type，For special experiment demand，But Ventilating cabinet is due to row's wind action，The space of closed can be formed powerful negative pressure，It is unfavorable for the discharge of dusty gas，If taking semi open model space，The environment of laboratory，Humidity and temperature will be unable to meet，The working environment of testing crew will be greatly affected，Thus affect work efficiency，For problem above can by fume hood and air conditioning unit or independent exhaust system with the use of，Coordinate air conditioning unit exhaust system can take away substantial amounts of warm braw or cold wind，Waste is to substantial amounts of electric energy，Outdoor air can be mended on the operating surface of Ventilating cabinet by independent exhaust system，Decrease the demand to air-conditioning benefit wind and decrease energy consumption，Can also effectively solve negative pressure problem，But occur in that again new problem，Because the difference of experiment，The discharge capacity of dusty gas is the most different，The difference of form Lift，Indoor benefit air quantity is the most different，So Ventilating cabinet in use requirement to exhaust air rate is dynamically change，Particularly mend air quantity and should effectively control the state at exhaust air rate 60%～85%，Because negative pressure state to be kept in the operational controls of Ventilating cabinet，Prevent the discharge of dusty gas，It is therefore necessary to provide the fume hood of the be automatically adjusted benefit air quantity of a kind of energy-conservation and safe and applicable，Exhaust air rate varying signal can be monitored，Then feed back to signal mend air quantity system，Benefit air force is adjusted in time according to exhaust air rate size.

Utility model content

Problem to be solved in the utility model is to be to provide the energy-conservation and variable air volume control system of safety.

nullFor solving above-mentioned technical problem，The technical solution adopted in the utility model is: variable air volume control system includes mending blower fan、Exhaust blower、Electric cabinet、Wind speed inductance gauge、Converter and Ventilating cabinet，Described Ventilating cabinet includes casing，Described casing is located on horizontal plane，Described box house is provided with workbench，The side of described casing is provided with opening，The both sides of described opening are equipped with front column，Described front column is cavity body and inner side is provided with the first QI invigorating hole，Described first QI invigorating hole is located at above workbench，The cavity body of described front column connects with described first QI invigorating hole，Described benefit pathogenic wind pipe one end is connected with described benefit blower fan，The other end is connected with the cavity body of described front column，The upper end of described casing is provided with exhaust outlet，One end of described exhaust outlet is connected with described exhaust blower，The other end is connected with described Ventilating cabinet，Described wind speed inductance gauge is located at described exhaust outlet lower end between two parties，The holding wire of described wind speed inductance gauge is connected with described electric cabinet，The quantity of described converter is two，One of them of two described converters is connected with described exhaust blower，Another one is connected with described benefit blower fan.

The quantity in described first QI invigorating hole is multiple, and described multiple first QI invigorating pore diameter size are inconsistent, and described first QI invigorating bore dia sets gradually the most in accordance with the order from top to bottom.

Casing also includes that rear column and backboard, described rear column are provided with the second QI invigorating hole, and described backboard is provided with the 3rd QI invigorating hole, and described second QI invigorating hole and described 3rd QI invigorating hole are located at above described workbench.

The quantity of described benefit pathogenic wind pipe is multiple, be connected to the described benefit pathogenic wind pipe quantity of described front column more than the described benefit pathogenic wind pipe quantity being connected to rear column and backboard and.

Described casing material is aluminium section bar.

The cavity body of described front column includes the first cavity, second cavity, first is protruding, first groove, second groove, 4th is protruding, second protruding and the 3rd projection, described first cavity and described second cavity are side by side and mirror image is arranged, described second cavity is " L " shape, described first projection is located at described second cavity upper surface, the upper surface of described first projection is concordant with described second cavity, it is described that first is protruding and forms the first groove between described second cavity, described first cavity that mirror image is arranged is arranged over the 4th projection arranged with the first protruding mirror image, the second groove arranged with the first groove mirror image, described second projection and the 3rd projecting parallel are arranged on described 4th projection side away from described second groove.

Described casing also includes ladder deflector, described ladder water conservancy diversion is stepped, described ladder guide layer is perpendicular to the upper surface of described casing and is located at described box house one end away from sliding door, described ladder deflector includes the first guide layer and the second guide layer, described first guide layer be arranged in parallel with described second guide layer, described second guide layer is located at the position near described exhaust outlet, and described first guide layer is provided with the first flow-guiding mouth, and shown second guide layer is provided with the second flow-guiding mouth.

Described casing is provided with the side of opening and is additionally provided with indoor wind complement port, and described indoor wind complement port quantity is multiple, and described multiple indoor wind complement port is located at the top of described box opening.

Described opening part is provided with sliding door, and described sliding door and described casing are for being slidably connected, and described sliding door material is safety glass, and described sliding door is provided with push-and-pull platform away from the lower end, side of described casing.

Described workbench is arranged over water pipe and groove, and one end of described water pipe and described groove are just to setting, and the other end is connected with supply equipment, is provided with storage tank below described workbench, and described storage tank is pull bar door with the homonymy of described sliding door.

nullThis utility model has the advantage that with good effect: compared with prior art，1、This utility model uses wind speed inductance gauge and converter，Owing to exhaust outlet diameter is constant，If the open height of Ventilating cabinet is different，Wind speed will change，Wind speed inductance gauge can at any time by the numeric feedback of exhaust outlet speed that monitors to electric cabinet，If wind speed becomes big，Electric cabinet will promote air draft unit by converter and mend the speed of blower fan group，Thus increase exhaust air rate，Otherwise then reduce exhaust air rate，Can ensure that the internal dusty gas produced of fume hood is discharged timely and effectively，Safety is higher，Whole process is all to be automatically performed by signal and electric cabinet，Stable performance，Front column uses side to mend wind，Wind screen is formed in time in open area，Gas in fume hood is intercepted in time，Prevent from revealing，Promote safety，Avoid benefit wind uncomfortable to the blowing of experimenter's head，It also avoid the damage to operator's hand of the lower benefit wind；2, the first QI invigorating hole number is the benefit air quantity of multiple guarantee side, and increase the most successively, the wind screen that so lower end is formed is tighter, it is more beneficial for dusty gas the most upwards to discharge, and in view of the problem of specific gravity of gas, the most effectively prevent the dusty gas that proportion is bigger from revealing from lower end, promote safety；3, the dusty gas that experiment produces is carried out water conservancy diversion, beneficially dusty gas discharge by the second QI invigorating hole and the 3rd QI invigorating hole from bottom to top, promotes exhaust efficiency；4, side is mended the benefit wind velocity benefit wind velocity more than other face of pathogenic wind pipe quantity many guarantees side, beneficially box house and is formed negative pressure state, beneficially dusty gas discharge；5, aluminium section bar is attractive in appearance, and good rigidly and bending strength are big, convenient assembly, and then convenient transport, can dismantle and carry out secondary utilization, and the energy is saved in environmental protection；6, the first cavity is provided with the guarantee of QI invigorating hole and mends the realization of wind function, and the second cavity can prevent electric wire and some auxiliary distributions etc. of electric-control system, and making full use of space beautifies constructional appearance, and projection and groove conveniently carry out assembly；7, guide layer is set to stepped, beneficially the discharge of the dusty gas of box house different levels, promotes the effective percentage of air draft；8, indoor wind complement port can ensure the normal work of air draft under sliding door completely closed state, it is to avoid box house is in the dangerous situations such as negative pressure state generation blast, the security performance of lifting means；9, the convenient beaker placing experiment of groove, water pipe facilitates the carrying out that use water is tested, and saves the time that experimenter walks about, and promotes work efficiency, and the storage tank below operating board can place some experiment assistant products, convenient and practical；10, sliding door facilitates experimenter to determine scope and the size opened as required; during operation, experimenter can be played the effect of protection; if experimentation need not operation; also casing can be sealed; promote the safety of experiment; lucite facilitates experimenter's observation experiment state also to have explosion prevention function, Protection personnel, and push-and-pull boss facilitates the opening and closing of sliding door.

Accompanying drawing explanation

Fig. 1 is the flow chart of this utility model variable air volume control system.

Fig. 2 is the structural representation of this utility model variable air volume control system.

Fig. 3 is the front view of this utility model variable air volume control system.

Fig. 4 is the A-A sectional view of this utility model variable air volume control system.

Fig. 5 is the F-F sectional view of this utility model variable air volume control system.

Fig. 6 is the sectional drawing of this utility model front column.

Detailed description of the invention

Below in conjunction with the accompanying drawings specific embodiment of the utility model is elaborated.

As shown in Figure 1, Figure 2 and Figure 4, this utility model is variable air volume control system, including casing 1, sliding door 3, exhaust outlet 4, wind speed inductance gauge 5, mends pathogenic wind pipe 7, ladder deflector 8, benefit blower fan, exhaust blower, electric cabinet and converter.

nullVentilating cabinet includes casing 1，Casing 1 is located on horizontal plane，Casing 1 is internal is provided with workbench 12，The side of casing 1 is provided with opening，The both sides of opening are equipped with front column 11，Front column 11 is provided with the first QI invigorating hole 1111 for cavity body and inner side，First QI invigorating hole 1111 is located at above workbench 12，The cavity body of front column 11 connects with the first QI invigorating hole 1111，Mend pathogenic wind pipe 7 one end and be connected with mending blower fan，The other end is connected with the cavity body of front column 11，The upper end of casing 1 is provided with exhaust outlet 4，One end of exhaust outlet 4 is connected with exhaust blower，The other end is connected with Ventilating cabinet，Wind speed inductance gauge 5 is located at exhaust outlet 4 lower end between two parties，The holding wire of wind speed inductance gauge 5 is connected with electric cabinet，The quantity of converter is two，One of them of two converters be connected with exhaust blower，Another one is connected with mending blower fan，Further，Described opening part is provided with sliding door 3，Described sliding door 3 and described casing 1 are for being slidably connected，Sliding door 3 material is safety glass，And sliding door 3 is provided with push-and-pull platform 31 away from the lower end, side of casing 1，Further，Casing 1 is provided with the side of opening and is additionally provided with indoor wind complement port 15，Indoor wind complement port 15 quantity is multiple，Multiple indoor wind complement ports 15 are located at the top of casing 1 opening，The lower section of casing 1 is additionally provided with fot screw 13，The convenient height adjusting casing 1 of fot screw 13，Ensure that workbench 12 is in level.

Further, the quantity in the first QI invigorating hole 1111 is multiple, multiple first QI invigorating hole 1111 diameter inconsistent, first QI invigorating hole 1111 diameter sets gradually the most in accordance with the order from top to bottom, further, casing 1 also includes rear column 17 and backboard 16, rear column 17 is provided with the second QI invigorating hole 171, backboard 16 is provided with the 3rd QI invigorating hole 161, second QI invigorating hole 171 and the 3rd QI invigorating hole 161 are located at the top of workbench 12, further, the quantity mending pathogenic wind pipe 7 is multiple, be connected to benefit pathogenic wind pipe 7 quantity of front column 11 more than be connected to rear column 17 and backboard 16 benefit pathogenic wind pipe 7 quantity and.

nullFurther，Casing 1 material is aluminium section bar，The cavity body of front column 11 includes the first cavity 111、Second cavity 112、First projection 113、First groove 114、Second groove 118、4th projection 119、Second projection 115 and the 3rd projection 116，First cavity 111 and the second cavity 112 are side by side and mirror image is arranged，Second cavity 112 is " L " shape，First projection 113 is located at the second cavity 112 upper surface，The upper surface of the first projection 113 is concordant with the second cavity 112，The first groove 114 is formed between first protruding 113 and second cavity 112，The first cavity 111 that mirror image is arranged is arranged over the 4th projection 119 that 113 mirror images protruding with first are arranged、The second groove 118 arranged with the first groove 114 mirror image，Second projection 115 and the 3rd projection 116 are set in parallel in the 4th projection 119 side away from the second groove 118.

Further, casing 1 also includes ladder deflector 8, ladder deflector 8 is that two-stage nitration is stepped, ladder deflector 8 is perpendicular to the upper surface of casing 1 and is located at the internal one end away from sliding door 3 of casing 1, ladder deflector 8 includes the first guide layer 81 and the second guide layer 82, and the first guide layer 81 be arranged in parallel with the second guide layer 82, and the second guide layer 82 is located at the position near exhaust outlet 4, first guide layer 81 is provided with the first flow-guiding mouth 811, and shown second guide layer 82 is provided with the second flow-guiding mouth 821.

Further, workbench 12 is arranged over water pipe 18 and groove 121, the section of groove 121 is preferably circular, convenient beaker or the Reagent Tube etc. placed tests auxiliary equipment, one end of water pipe 18 and groove 121 are just to setting, the other end is connected with supply equipment, is provided with storage tank 14 below workbench 12, and storage tank 14 is pull bar door with the homonymy of sliding door 3.

Further, in exhausting loop, it is provided with acoustic filter before Ventilating cabinet and exhaust blower, it is used for reducing noise, avoid noise to produce vibration and experimental result is produced impact, it is also beneficial to keep environment quiet, exhaust blower connects depurator after deceleration pipeline, so ensure that dusty gas can have sufficient time of contact with depurator, ensure air-polluting degree of purification, then in being drained into air, environmental protection, in entering loop, outside air after filter in entering into Ventilating cabinet, ensure to mend the cleaning of wind portion gas, prevent the impurity such as dust from entering in Ventilating cabinet.

nullDuring actual use，The contamination gas scale of construction that first experimenter produces according to kind budget to be tested，Predict in the operating process of experiment simultaneously，The height that sliding door 3 is opened，Then the setting of exhaust air rate numerical value is carried out，During testing，Open exhaust blower and mend blower fan，The dusty gas produced in experimentation is under the water conservancy diversion of air pressure，It is upward through wind speed inductance gauge 5 along ladder deflector 8，Exhaust duct is entered into through exhaust outlet 4，Benefit blower fan now enters into front column 11 by mending pathogenic wind pipe 7、In rear column 17 and backboard 16，Then by the first QI invigorating hole 1111,、Second QI invigorating hole 171 and the 3rd QI invigorating hole 161 enter in casing 1，If during experiment，The height that sliding door 3 is opened changes，The air quantity now entered will increase，Exhaust air rate increases，The numerical value that now wind speed sensing 5 detects will become big，Signal will be transferred in electric cabinet，Electric cabinet is according to the parameter of the routine change converter set，Thus promote exhaust blower and mend the rotating speed increasing exhaust amount of blower fan and mend air quantity，Ensure that the internal indoor relatively of casing 1 are constantly in negative pressure state，Thus ensure the timely discharge of dusty gas，Otherwise increase and reduce exhaust blower and mend the rotating speed of blower fan，First QI invigorating hole 1111 of both sides is oppositely arranged formation wind screen，The dusty gas produced is played certain sealing process，Thus ensure that the dusty gas within casing 1 can be discharged smoothly，Dusty gas also can enter directly in exhaust blower along the first flow-guiding mouth 811 and the second flow-guiding mouth 821，Expellant gas sequentially passes through acoustic filter、Exhaust blower、Deceleration pipeline、It is discharged in air after depurator，Account for owing to mending air quantity between 60%～85% of exhaust air rate，The air of remainder is entered in Ventilating cabinet by indoor QI invigorating hole 15 by indoor air，Having been supplemented by air conditioning unit of indoor gas，The flowing of a small amount of gas does not affect the maintenance of indoor temperature，Ensure that good working environment，It also avoid the waste of air-conditioning power consumption，Total can be automatically adjusted the size mending air quantity according to the size of exhaust air rate，Body in the most excessive discharge chamber，Be conducive to keeping room temperature constant and safe and reliable，And energy-conserving and environment-protective.

Above an embodiment of the present utility model is described in detail, but described content has been only preferred embodiment of the present utility model, it is impossible to be considered for limiting practical range of the present utility model.All impartial changes made according to this utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.

Claims

null1. variable air volume control system，It is characterized in that: include mending blower fan、Exhaust blower、Electric cabinet、Wind speed inductance gauge (5)、Converter and Ventilating cabinet，Described Ventilating cabinet includes casing (1)，Described casing (1) is located on horizontal plane，Described casing (1) is internal is provided with workbench (12)，The side of described casing (1) is provided with opening，The both sides of described opening are equipped with front column (11)，Described front column (11) is cavity body and inner side is provided with the first QI invigorating hole (1111)，Described first QI invigorating hole (1111) is located at workbench (12) top，The cavity body of described front column (11) connects with described first QI invigorating hole (1111)，Described benefit pathogenic wind pipe (7) one end is connected with described benefit blower fan，The other end is connected with the cavity body of described front column (11)，The upper end of described casing (1) is provided with exhaust outlet (4)，One end of described exhaust outlet (4) is connected with described exhaust blower，The other end is connected with described Ventilating cabinet，Described wind speed inductance gauge (5) is located at described exhaust outlet (4) lower end between two parties，The holding wire of described wind speed inductance gauge (5) is connected with described electric cabinet，The quantity of described converter is two，One of them of two described converters is connected with described exhaust blower，Another one is connected with described benefit blower fan.
Variable air volume control system the most according to claim 1, it is characterized in that: the quantity in described first QI invigorating hole (1111) is multiple, described multiple first QI invigorating hole (1111) diameter are inconsistent, and described first QI invigorating hole (1111) diameter sets gradually the most in accordance with the order from top to bottom.
Variable air volume control system the most according to claim 1, it is characterized in that: casing (1) also includes rear column (17) and backboard (16), described rear column (17) is provided with the second QI invigorating hole (171), described backboard (16) is provided with the 3rd QI invigorating hole (161), and described second QI invigorating hole (171) and described 3rd QI invigorating hole (161) are located at described workbench (12) top.
Variable air volume control system the most according to claim 3, it is characterized in that: the quantity of described benefit pathogenic wind pipe (7) is multiple, be connected to described benefit pathogenic wind pipe (7) quantity of described front column (11) more than described benefit pathogenic wind pipe (7) quantity being connected to rear column (17) and backboard (16) with.
Variable air volume control system the most according to claim 1, it is characterised in that: described casing (1) material is aluminium section bar.
nullVariable air volume control system the most according to claim 5，It is characterized in that: the cavity body of described front column (11) includes the first cavity (111)、Second cavity (112)、First protruding (113)、First groove (114)、Second groove (118)、4th protruding (119)、Second protruding (115) and the 3rd protruding (116)，Described first cavity (111) and described second cavity (112) are side by side and mirror image is arranged，Described second cavity (112) is " L " shape，Described first protruding (113) are located at described second cavity (112) upper surface，The upper surface of described first protruding (113) is concordant with described second cavity (112)，The first groove (114) is formed between described first protruding (113) and described second cavity (112)，Described first cavity (111) that mirror image is arranged is arranged over the 4th protruding (119) arranged with first protruding (113) mirror image、The second groove (118) arranged with the first groove (114) mirror image，Described second protruding (115) and the 3rd protruding (116) are set in parallel in the side away from described second groove (118), the described 4th protruding (119).
Variable air volume control system the most according to claim 1, it is characterized in that: described casing (1) also includes ladder deflector (8), described ladder deflector (8) is that two-stage nitration is stepped, described ladder deflector (8) is perpendicular to the upper surface of described casing (1) and is located at the internal one end away from described front column (11) of described casing (1), described ladder deflector (8) includes the first guide layer (81) and the second guide layer (82), described first guide layer (81) be arranged in parallel with described second guide layer (82), described second guide layer (82) is located at the position near described exhaust outlet (4), described first guide layer (81) is provided with the first flow-guiding mouth (811), shown second guide layer (82) is provided with the second flow-guiding mouth (821).
Variable air volume control system the most according to claim 1, it is characterized in that: described casing (1) is provided with the side of opening and is additionally provided with indoor wind complement port (15), described indoor wind complement port (15) quantity is multiple, and described multiple indoor wind complement port (15) is located at the top of described casing (1) opening.
Variable air volume control system the most according to claim 1, it is characterized in that: described opening part is provided with sliding door (3), described sliding door (3) and described casing (1) are for being slidably connected, described sliding door (3) material is safety glass, and described sliding door (3) is provided with push-and-pull platform (31) away from the lower end, side of described casing (1).
Variable air volume control system the most according to claim 9, it is characterized in that: described workbench (12) is arranged over water pipe (18) and groove (121), one end of described water pipe (18) and described groove (121) are just to setting, the other end of described water pipe (18) is connected with supply equipment, described workbench (12) lower section is provided with storage tank (14), and described storage tank (14) is pull bar door with the homonymy of described sliding door (3).