CN205939544U - Laboratory lingering remnants of past customs volume control system - Google Patents
Laboratory lingering remnants of past customs volume control system Download PDFInfo
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- CN205939544U CN205939544U CN201620803229.3U CN201620803229U CN205939544U CN 205939544 U CN205939544 U CN 205939544U CN 201620803229 U CN201620803229 U CN 201620803229U CN 205939544 U CN205939544 U CN 205939544U
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Abstract
The utility model discloses a laboratory lingering remnants of past customs volume control system, including install in the laboratory air exhaust the cabinet with install benefit fan group, the exhaust units the laboratory outside, mend fan group through the inside intercommunication in secondary air channel and laboratory, the secondary air channel that is located the laboratory is equipped with to be mended the wind butterfly valve and mends the air flow sensor, mend the air flow sensor and link to each other with blast volume controller in the laboratory, the blast volume controller with mend the wind butterfly valve and link to each other, be equipped with differential pressure sensor on the wall of laboratory, differential pressure sensor is continuous with the blast volume controller, the cabinet of airing exhaust pass through the exhaust pipe and exhaust units links to each other, and the exhaust pipe that is located the laboratory is equipped with venturi valve and arranges the air flow sensor, arranges the air flow sensor and links to each other with the cabinet controller of airing exhaust, and the cabinet controller of airing exhaust links to each other respectively with venturi valve, blast volume controller. The utility model discloses direct control mends wind and airs exhaust the amount of wind, improves system response time and precision, avoids the pollutant entering in the environment indoor, promotes indoor cleanliness factor.
Description
Technical field
This utility model is related to laboratory Boiler pressure control technical field and in particular to Boiler pressure control system more than a kind of laboratory
System.
Background technology
Laboratory is the Code in Hazardous Special Locations for completing various experimental works, the quality of its Design of Ventilation System, direct relation
Operating cost to healthy, experimental data the accuracy of experimenter, laboratory.May produce during experimental implementation
Raw toxic and harmful, for guaranteeing experimenter's safety, the room producing toxic and harmful is tested, and how to carry out laboratory ventilation and sets
Meter, effectively eliminates various harmful gass and waste heat, to improve experiment condition, safeguard work personnel physical and mental health particularly important.
Content of the invention
Goal of the invention：For the deficiencies in the prior art, this utility model provides a kind of laboratory lingering remnants of past customs amount control system, directly
Connect control and mend wind and air draft air quantity, improve system response time and precision, it is to avoid the pollutant in environment get in, lift room
Interior cleanliness factor.
Technical scheme：Laboratory lingering remnants of past customs amount control system described in the utility model, including the row being arranged on experiment interior
The wind cabinet benefit blower fan group outdoor with being arranged on experiment, exhaust fan unit, are mended blower fan group and are connected with laboratory internal by secondary air channel, position
It is provided with benefit wind butterfly valve in the indoor secondary air channel of experiment and mends air flow sensor, mend the air flow sensor air quantity indoor with experiment
Controller is connected, and blast volume controller is connected with mending wind butterfly valve, and laboratory wall is provided with differential pressure pickup, differential pressure pickup and wind
Amount controller is connected, and laboratory hood is connected with described exhaust fan unit by exhaust duct, is provided with civilian mound positioned at the indoor exhaust duct of experiment
In valve and air draft flow transducer, air draft flow transducer is connected with air draft cabinet controller, air draft cabinet controller and venturi valve,
Blast volume controller is respectively connected with.
Improve technique scheme further, described exhaust fan unit, mend blower fan group all using frequency conversion fan, positioned at laboratory
Outer secondary air channel is connected with duct pressure sensor, duct pressure sensor pass through duct pressure controller, converter with described
Mend blower fan group to be connected；It is located at the outdoor exhaust duct of experiment and is connected with duct pressure sensor, duct pressure sensor passes through air channel
Pressure controller, converter are connected with described exhaust fan unit.Blower fan adopts frequency conversion fan, sets pressure transducer in air channel, will
The pressure that pressure transducer records is compared with setup pressure value, adjusts rotation speed of fan by converter, reaches the purpose adjusting air quantity.
Further, described laboratory hood is two.
Beneficial effect：Compared with prior art, advantage of the present utility model：The laboratory lingering remnants of past customs amount of this utility model setting
Control system, by the indoor pressure reduction with reference area of differential pressure pickup measurement, compares with setting pressure reduction, is to allow exhaust air rate and send
The air quantity keeping certain between air quantity is poor, and when indoor total air output is more than indoor return air, air draft total amount, air passes through excess pressure valve
Discharge with room gap, set up malleation with adjacent area, it is to avoid the pollutant in environment get in；Mend elegance butterfly valve control
Tubing giving sufficient strength air quantity, precision not susceptible, valve resistance is little, and laboratory hood adopts venturi valve, direct by measuring cabinet door position
Control valve area, system reflection is fast, and response time is short.
Brief description
Fig. 1 is structural representation of the present utility model.
Specific embodiment
Below by accompanying drawing, technical solutions of the utility model are described in detail.
Embodiment 1：Laboratory lingering remnants of past customs amount control system as shown in Figure 1, including two air drafts being arranged on experiment interior
Cabinet 31,32 and be arranged on the outdoor benefit blower fan group 1 of experiment, exhaust fan unit 2, mends blower fan group 1 and passes through secondary air channel and laboratory internal
Connection, is provided with benefit wind butterfly valve 14 positioned at the indoor secondary air channel of experiment and mends air flow sensor 13, mend air flow sensor 13 with
The indoor blast volume controller of experiment is connected, and blast volume controller is connected with mending wind butterfly valve 14, and laboratory wall is provided with pressure difference sensing
Device, differential pressure pickup is connected with blast volume controller, and laboratory hood is connected with exhaust fan unit 2 by exhaust duct, indoor positioned at experiment
Exhaust duct is provided with venturi valve 34 and air draft flow transducer 33, and air draft flow transducer is connected with air draft cabinet controller, air draft
Cabinet controller is respectively connected with venturi valve 34, blast volume controller.
Exhaust fan unit 2, benefit blower fan group 1 all using frequency conversion fan, are connected with duct pressure positioned at the outdoor secondary air channel of experiment
Sensor P, duct pressure sensor P pass through duct pressure controller, converter and are connected with mending blower fan group 1；Positioned at laboratory
Outer exhaust duct is connected with duct pressure sensor P, and duct pressure sensor P passes through duct pressure controller, converter and row
Blower fan group 2 is connected.Blower fan adopts frequency conversion fan, sets pressure transducer P in air channel, the pressure that pressure transducer P is recorded with
Setup pressure value compares, and adjusts rotation speed of fan by converter, reaches the purpose adjusting air quantity.
Although as described above, having represented with reference to specific preferred embodiment and having described this utility model, it must not
It is construed to the restriction to this utility model itself.In the spirit and scope of the present utility model defining without departing from claims
Under the premise of, can various changes can be made in the form and details to it.
Claims (3)
1. a kind of laboratory lingering remnants of past customs amount control system it is characterised in that：Test indoor laboratory hood and be arranged on including being arranged on
The outdoor benefit blower fan group of experiment, exhaust fan unit, are mended blower fan group and are connected with laboratory internal by secondary air channel, indoor positioned at experiment
Secondary air channel is provided with benefit wind butterfly valve and mends air flow sensor, mends the air flow sensor blast volume controller indoor with experiment and is connected,
Blast volume controller is connected with mending wind butterfly valve, and laboratory wall is provided with differential pressure pickup, differential pressure pickup and blast volume controller phase
Even, laboratory hood is connected with described exhaust fan unit by exhaust duct, is provided with venturi valve and air draft positioned at the indoor exhaust duct of experiment
Flow transducer, air draft flow transducer is connected with air draft cabinet controller, air draft cabinet controller and venturi valve, blast volume controller
It is respectively connected with.
2. laboratory lingering remnants of past customs amount control system according to claim 1 it is characterised in that：Described exhaust fan unit, benefit blower fan
Group all using frequency conversion fan, is connected with duct pressure sensor positioned at the outdoor secondary air channel of experiment, duct pressure sensor passes through
Duct pressure controller, converter are connected with described benefit blower fan group；It is located at the outdoor exhaust duct of experiment and be connected with duct pressure biography
Sensor, duct pressure sensor passes through duct pressure controller, converter is connected with described exhaust fan unit.
3. laboratory lingering remnants of past customs amount control system according to claim 1 it is characterised in that：Described laboratory hood is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620803229.3U CN205939544U (en) | 2016-07-27 | 2016-07-27 | Laboratory lingering remnants of past customs volume control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620803229.3U CN205939544U (en) | 2016-07-27 | 2016-07-27 | Laboratory lingering remnants of past customs volume control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205939544U true CN205939544U (en) | 2017-02-08 |
Family
ID=57927338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620803229.3U Active CN205939544U (en) | 2016-07-27 | 2016-07-27 | Laboratory lingering remnants of past customs volume control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN205939544U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426342A (en) * | 2017-02-15 | 2018-08-21 | 阿自倍尔株式会社 | chamber pressure control system and method |
| CN108571798A (en) * | 2017-03-09 | 2018-09-25 | 青岛谱尼测试有限公司 | A kind of laboratory ventilation system |
| CN111578433A (en) * | 2019-02-19 | 2020-08-25 | 维谛技术有限公司 | Data center, and refrigeration control method and device of data center |
| CN112162511A (en) * | 2020-09-25 | 2021-01-01 | 天长市高朋实验设备有限公司 | Laboratory ventilation control system based on thing networking |
| CN112484253A (en) * | 2020-11-24 | 2021-03-12 | 珠海格力电器股份有限公司 | Indoor pressure control method, device, controller and exhaust system |
| CN113739314A (en) * | 2020-05-28 | 2021-12-03 | 中国石油化工股份有限公司 | Ventilation gas defense system for laboratory |
-
2016
- 2016-07-27 CN CN201620803229.3U patent/CN205939544U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426342A (en) * | 2017-02-15 | 2018-08-21 | 阿自倍尔株式会社 | chamber pressure control system and method |
| CN108426342B (en) * | 2017-02-15 | 2020-08-04 | 阿自倍尔株式会社 | Room pressure control system and method |
| CN108571798A (en) * | 2017-03-09 | 2018-09-25 | 青岛谱尼测试有限公司 | A kind of laboratory ventilation system |
| CN111578433A (en) * | 2019-02-19 | 2020-08-25 | 维谛技术有限公司 | Data center, and refrigeration control method and device of data center |
| CN113739314A (en) * | 2020-05-28 | 2021-12-03 | 中国石油化工股份有限公司 | Ventilation gas defense system for laboratory |
| CN112162511A (en) * | 2020-09-25 | 2021-01-01 | 天长市高朋实验设备有限公司 | Laboratory ventilation control system based on thing networking |
| CN112484253A (en) * | 2020-11-24 | 2021-03-12 | 珠海格力电器股份有限公司 | Indoor pressure control method, device, controller and exhaust system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |