CN215314599U - Special high-speed efflux exhaust unit in laboratory - Google Patents
Special high-speed efflux exhaust unit in laboratory Download PDFInfo
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- CN215314599U CN215314599U CN202121598988.8U CN202121598988U CN215314599U CN 215314599 U CN215314599 U CN 215314599U CN 202121598988 U CN202121598988 U CN 202121598988U CN 215314599 U CN215314599 U CN 215314599U
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Abstract
The utility model discloses a high-speed jet exhaust fan set special for a laboratory, and relates to the technical field of laboratory ventilation equipment. The utility model comprises a ventilator box, a control cabinet arranged on the first side of the ventilator box, and a distribution box arranged on one side of the control cabinet, wherein the second side of the ventilator box is communicated with an exhaust inlet pipe. The outer side wall of the exhaust inlet pipe is provided with the air pipe for conveying outdoor fresh air, so that poisonous and harmful gas exhausted from the exhaust inlet pipe is diluted conveniently, the toxicity of the poisonous and harmful gas during exhaust is reduced, the venturi valve is arranged to meet the requirement that the exhaust volume of the exhaust fan box is not changed, when the indoor exhaust volume is small, the control cabinet controls the opening degree of the venturi valve to be increased, more fresh air is extracted to ensure that the exhaust volume of the exhaust fan box is constant, and when the indoor exhaust volume is large, the control cabinet controls the opening degree of the venturi valve to be decreased, less fresh air is extracted to ensure that the exhaust volume of the exhaust fan box is constant.
Description
Technical Field
The utility model belongs to the technical field of laboratory ventilation equipment, and particularly relates to a high-speed jet exhaust fan set special for a laboratory.
Background
A high-speed jet exhaust fan set for laboratory is a device for exhausting wind in laboratory, and the ventilator is a driven fluid machine which can raise gas pressure and discharge gas by means of input mechanical energy.
The fan is discharged for the unit operation in present high altitude, does not install well for the equipment unit, does not install relevant noise reduction measure, easily produces great noise at equipment operation in-process, and the export of airing exhaust is installed on the fan top, easily causes the rainwater infiltration, and simultaneously, control, the distribution of current high altitude discharge unit are independent with the equipment body, need independent design, purchase and installation, involve more specialty, if the butt joint is not in place, easily cause the unable normal operating of equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high-speed jet flow exhaust fan unit special for a laboratory, which solves the technical problems of high noise and rainwater infiltration of the existing exhaust fan unit.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
a high-speed jet flow exhaust fan set special for a laboratory comprises an exhaust fan box, a control cabinet arranged on the first side of the exhaust fan box and a distribution box positioned on one side of the control cabinet, wherein the second side of the exhaust fan box is communicated with an exhaust inlet pipe, and the third side of the exhaust fan box is communicated with an exhaust outlet pipe;
the outer side wall of the air exhaust inlet pipe is communicated with an air pipe, a Venturi valve is arranged at one end of the air pipe, an electric sealing valve is arranged at one end of the Venturi valve, a shutter air port is arranged at one side of the electric sealing valve, and a signal line is connected between the control cabinet and the Venturi valve.
Optionally, a conical blast cap is mounted at one end of the exhaust air outlet pipe.
Optionally, one end of the exhaust air inlet pipe is provided with an air pipe joint.
Optionally, the first side and the second side of the exhaust fan box are adjacent sides, the first side and the third side of the exhaust fan box are adjacent sides, and the second side and the third side of the exhaust fan box are opposite sides.
Optionally, a channel steel bracket is arranged on one side of the exhaust fan box, and the exhaust outlet pipe is matched in the channel steel bracket.
Optionally, the venturi valve is communicated with the electric sealing valve, the electric sealing valve is communicated with the louver air opening, and the air pipe is communicated with the venturi valve.
The embodiment of the utility model has the following beneficial effects:
according to the embodiment of the utility model, the air pipe for conveying outdoor fresh air is arranged on the outer side wall of the exhaust air inlet pipe, so that poisonous and harmful gas exhausted from the exhaust air inlet pipe can be diluted conveniently, the toxicity of the poisonous and harmful gas during exhaust is further reduced, the arrangement of the louver air port reduces rainwater from permeating into the exhaust fan box through the louver air port, the service life of the exhaust fan box is prolonged, the venturi valve is arranged to meet the requirement of ensuring that the exhaust volume of the exhaust fan box is not changed, when the indoor exhaust volume is small, the control cabinet controls the opening degree of the venturi valve to be increased, more fresh air is extracted to ensure that the exhaust volume of the exhaust fan box is constant, and when the indoor exhaust volume is large, the control cabinet controls the opening degree of the venturi valve to be decreased, less fresh air is extracted to ensure that the exhaust volume of the exhaust fan box is constant.
Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
fig. 1 is a schematic diagram of a high-speed jet exhaust fan set for a laboratory according to an embodiment of the present invention.
Wherein the figures include the following reference numerals:
the air exhaust fan comprises an air exhaust fan box 1, a control cabinet 2, a distribution box 3, an air exhaust inlet pipe 4, an air exhaust outlet pipe 5, an air pipe joint 6, a channel steel support 7, a conical blast cap 8, an air pipe 9, a Venturi valve 10, an electric closed valve 11, a louver air port 12 and a signal line 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses.
To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the utility model have been omitted.
Referring to fig. 1, in this embodiment, a high-speed jet exhaust fan set dedicated for laboratories is provided, which includes: exhaust fan case 1, install switch board 2 in the first side of exhaust fan case 1, be located the block terminal 3 of 2 one sides of switch board, block terminal 3 includes: contain converter, air switch and ac contactor, switch board 2 includes: the air conditioner comprises a controller, an expansion module, a transformer, an air switch and a wiring terminal, wherein the wiring terminal is connected with one end of a signal wire 13, the second side of an exhaust fan box 1 is communicated with an exhaust inlet pipe 4, and the third side of the exhaust fan box 1 is communicated with an exhaust outlet pipe 5;
an air pipe 9 is communicated with the outer side wall of the air exhaust inlet pipe 4, a Venturi valve 10 is arranged at one end of the air pipe 9, an electric sealing valve 11 is arranged at one end of the Venturi valve 10, a louver air opening 12 is arranged at one side of the electric sealing valve 11, and a signal line 13 is connected between the control cabinet 2 and the Venturi valve 10.
When poisonous and harmful gas in the laboratory needs to be discharged, firstly, the exhaust fan box 1 is installed near the laboratory, then the main pipe of airing exhaust in the laboratory is installed at the one end of the air pipe joint 6, then the control cabinet 2 is started, the control cabinet 2 starts the venturi valve 10 through the signal line 13, the electric sealing valve 11, and then fresh air is conveyed to the air pipe 9 through the louver air port 12, the fresh air in the air pipe 9 dilutes the poisonous and harmful gas in the air pipe joint 6, the poisonous and harmful gas in the laboratory flows into the air exhaust inlet pipe 4 through the main pipe of airing exhaust, the poisonous and harmful gas in the air exhaust inlet pipe 4 flows into the air exhaust outlet pipe 5 through the exhaust fan box 1, and the poisonous and harmful gas in the air exhaust outlet pipe 5 is discharged to the outside through the conical air cap 8. It should be noted that the electric devices referred to in this application may be powered by a storage battery or an external power source.
Install the tuber pipe 9 that is used for carrying outdoor fresh air through the lateral wall of advancing pipe 4 at airing exhaust, it dilutes to the poisonous and harmful gas of airing exhaust in advancing pipe 4, and then the toxicity of poisonous and harmful gas when discharging has been reduced, the setting of tripe wind gap 12, it permeates exhaust fan case 1 through tripe wind gap 12 to have reduced the rainwater, the life of exhaust fan case 1 has been improved, the setting of venturi valve 10, in order to guarantee the unchangeable requirement of exhaust fan case 1 volume of airing exhaust, when indoor volume of airing exhaust is less, the aperture of switch board 2 control venturi valve 10 increases, extract more new trend, be used for guaranteeing that the volume of airing exhaust of exhaust fan case 1 is invariable, when indoor volume of airing exhaust is great, the aperture of switch board 2 control venturi valve 10 reduces, extract less new trend, be used for guaranteeing that the volume of airing exhaust fan case 1 is invariable.
A box type exhaust fan with two built-in centrifugal fans is adopted for exhausting toxic and harmful gases generated in the indoor experiment process. The sound insulation material is arranged in the fan box body, so that the running sound of the fan is greatly reduced. Two built-in centrifugal fans are mutually standby, and when any one of the centrifugal fans fails or runs for a long time, the centrifugal fan is automatically switched to the other centrifugal fan.
Referring to fig. 1, a tapered hood 8 is installed at one end of an exhaust pipe 5 of the present embodiment, and is used for exhausting low-concentration exhaust gas meeting the requirements of the atmospheric emission standard after dilution, a channel steel bracket 7 is installed at one side of an exhaust fan case 1, and the exhaust pipe 5 is matched in the channel steel bracket 7 and is used for fixing the tapered hood 8 and the exhaust pipe 5, so that the occurrence of shaking of the exhaust pipe 5 and the tapered hood 8 during use is reduced, and the stability of the exhaust pipe 5 and the tapered hood 8 during use is further improved.
Referring to fig. 1, one end of the exhaust air inlet pipe 4 of the present embodiment is provided with an air pipe joint 6, a venturi valve 10 is communicated with an electric sealing valve 11, the electric sealing valve 11 is communicated with a louver port 12, an air pipe 9 is communicated with the venturi valve 10, and the related air pipe joint 6 is reserved for connecting the equipment with an exhaust main pipe in a laboratory after the equipment is installed in place.
Referring to fig. 1, the first side and the second side of the exhaust fan box 1 of the present embodiment are adjacent sides, the first side and the third side of the exhaust fan box 1 are adjacent sides, and the second side and the third side of the exhaust fan box 1 are opposite sides.
The above embodiments may be combined with each other.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Claims (6)
1. A high-speed jet exhaust fan set special for a laboratory comprises: the air exhaust box (1), a control cabinet (2) arranged on the first side of the air exhaust box (1), and a distribution box (3) positioned on one side of the control cabinet (2), and is characterized in that the second side of the air exhaust box (1) is communicated with an air exhaust inlet pipe (4), and the third side of the air exhaust box (1) is communicated with an air exhaust outlet pipe (5);
the outer side wall of the air exhaust inlet pipe (4) is communicated with an air pipe (9), a Venturi valve (10) is installed at one end of the air pipe (9), an electric closed valve (11) is installed at one end of the Venturi valve (10), a louver air opening (12) is installed at one side of the electric closed valve (11), and a signal line (13) is connected between the control cabinet (2) and the Venturi valve (10).
2. The laboratory-specific high-speed jet exhaust fan set according to claim 1, wherein one end of the exhaust air outlet pipe (5) is provided with a conical hood (8).
3. The laboratory-specific high-speed jet exhaust fan set according to claim 1, wherein one end of the exhaust inlet duct (4) is provided with an air duct joint (6).
4. The laboratory specific high velocity jet exhaust fan assembly according to claim 1, wherein the first side and the second side of the exhaust fan case (1) are adjacent sides, the first side and the third side of the exhaust fan case (1) are adjacent sides, and the second side and the third side of the exhaust fan case (1) are opposite sides.
5. The laboratory-specific high-speed jet exhaust fan unit according to claim 1, characterized in that a channel steel bracket (7) is installed at one side of the exhaust fan box (1), and the exhaust air outlet pipe (5) is fitted in the channel steel bracket (7).
6. The laboratory-specific high-speed jet exhaust fan unit according to claim 1, wherein the venturi valve (10) is in communication with an electrically-operated airtight valve (11), the electrically-operated airtight valve (11) is in communication with the louver port (12), and the air duct (9) is in communication with the venturi valve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121598988.8U CN215314599U (en) | 2021-07-14 | 2021-07-14 | Special high-speed efflux exhaust unit in laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121598988.8U CN215314599U (en) | 2021-07-14 | 2021-07-14 | Special high-speed efflux exhaust unit in laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215314599U true CN215314599U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121598988.8U Active CN215314599U (en) | 2021-07-14 | 2021-07-14 | Special high-speed efflux exhaust unit in laboratory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215314599U (en) |
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2021
- 2021-07-14 CN CN202121598988.8U patent/CN215314599U/en active Active
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