CN103382778A - Negative-pressure weighing room - Google Patents

Negative-pressure weighing room Download PDF

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Publication number
CN103382778A
CN103382778A CN 201210135677 CN201210135677A CN103382778A CN 103382778 A CN103382778 A CN 103382778A CN 201210135677 CN201210135677 CN 201210135677 CN 201210135677 A CN201210135677 A CN 201210135677A CN 103382778 A CN103382778 A CN 103382778A
Authority
CN
China
Prior art keywords
air
casing
box body
filter
workspace
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 201210135677
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Chinese (zh)
Inventor
王世成
俞伟
顾晓霞
蒋爱宾
刁如军
张少梅
范双怀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KUNSHAN MAX METAL CO Ltd
Original Assignee
KUNSHAN MAX METAL CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KUNSHAN MAX METAL CO Ltd filed Critical KUNSHAN MAX METAL CO Ltd
Priority to CN 201210135677 priority Critical patent/CN103382778A/en
Publication of CN103382778A publication Critical patent/CN103382778A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a negative-pressure weighing room. The negative-pressure weighing room comprises an outer box body, as well as an air return box body, an air supply box body and a working space which are arranged in the outer box body, wherein the air supply box body is arranged at the inner upper part of the outer box body; the air return box body is arranged on one side below the air supply box body in the outer box body, and the air supply box body, the air return box body and the outer box body surround the working space; a blower support and an air feeder on the blower support are both arranged in the air return box body, and the air outlet of the air feeder is led into the air supply box body; a primary filter and an intermediate-acting filter are arranged in the air return box body to filter air entering the air return box body; an efficient filter is arranged on the air supply box body and corresponds to the junction of the air supply box body and the working space, an air outlet is formed in the lower side surface of the air supply box body, adjacent to the working space, and a flow equalization membrane is arranged on the air outlet. The negative-pressure weighing room enables the working space to generate negative pressure, prevents cross contamination, ensures safety of an operator, avoids secondary contamination caused by weighing and ensures high-cleanliness environment of the working space.

Description

Between the negative pressure weighing
Technical field
The present invention relates to bio-pharmaceuticals industry toilet engineering technical field, relate to specifically between a kind of negative pressure weighing.
Background technology
Requirement according to pharmaceuticals industry GMP, the operation room such as the supplementary material weighing of preparation or the sampling of dried material or product, weighing, mixing, packing and the production department of producing tablet, bulk drug, oral formulations etc. in weighing, mix, sieve, all must satisfy certain cleanliness factor requirement in the technique processes such as whole grain, compressing tablet, capsule-filling, pulvis can, and the dust from flying diffusion the most easily occurs in these zones, particularly by air cleaning and conditioning system, mixed medicine or cross pollution occurs.For strong toxicity, excitant, hypersensitive dust are arranged, problem is more serious.Therefore dust Control and removing become the medicine workshop problem needing to overcome.
Summary of the invention
In order to overcome defects, the invention provides between a kind of negative pressure weighing, make the workspace produce negative pressure, prevent cross pollution, protection operator's safety, and not because weighing produces secondary pollution, guaranteed the high-cleanness, high environment of workspace.
The present invention for the technical scheme that solves its technical problem and adopt is: between a kind of negative pressure weighing, comprise outer case and be located at the return air casing in this outer case, blow casing and workspace, described air-supply casing is located in upper area in described outer case, and its lateral surface and described outer case are tightly connected; Described return air casing is located at institute
State a side place in the zone that is positioned at described air-supply casing below in outer case, described air-supply casing, return air casing and outer case surround described workspace jointly; Be provided with fan supporter and be located at ventilator on this fan supporter in described return air casing, and the air outlet of this ventilator leads in described air-supply casing; Be provided with roughing efficiency air filter at described return air casing below near a side of described workspace, be positioned at the below of described fan supporter in this return air casing and be provided with medium effeciency filter over against this roughing efficiency air filter place; Described air-supply casing is provided with high efficiency particulate air filter corresponding to the intersection of described air-supply casing and workspace, and the downside of the vicinity described workspace of described air-supply casing is provided with air outlet, and this air outlet is provided with the current-sharing film.
As a further improvement on the present invention, be provided with switch board in described return air casing, the side that described air-intaking box body is positioned at described workspace is provided with control panel, and this control panel is controlled the duty of described ventilator, roughing efficiency air filter, medium effeciency filter and high efficiency particulate air filter by described switch board.
As a further improvement on the present invention, be provided with the teardrop lamp in upper side and the position, corresponding described workspace of described air-supply casing, the switch jack panel of this teardrop lamp is arranged on described control panel.
As a further improvement on the present invention, also be provided with differential pressure indicator and emergency button for the induction air flow size on described control panel.
As a further improvement on the present invention, be provided with air velocity transducer on the lateral surface of described return air casing and workspace vicinity.
As a further improvement on the present invention, also be provided with access door on described return air casing, this access door is connected by doorframe and described return air casing.
As a further improvement on the present invention, described ventilator is connected with described fan supporter by damper, and receives repeatedly in described air-supply casing by flexible pipe it is blown.
As a further improvement on the present invention, described return air casing and return air casing are the stainless steel rectangular structure, and described outer case is one of stainless steel sheet metal, two-sided stainless steel rock wool and paper honeycomb structure.
As a further improvement on the present invention, be provided with air outlet on a side of the high efficiency particulate air filter of described air-supply casing, separately be provided with the size that control valve is adjusted this air outlet exhaust air rate, and the exhaust air rate adjustable range be the 10%-15% of total blast volume.
As a further improvement on the present invention, described high efficiency particulate air filter is connected with described air-supply casing medial surface by stainless steel frame, and silica gel sealing is adopted in the junction; Described roughing efficiency air filter is connected with medium effeciency filter by stainless steel frame and is connected with described return air casing; Described return air support is screwed on described outer case.
The invention has the beneficial effects as follows: not only protected medicine in environment, and protected operator's safety, do not produced secondary pollution because of weighing simultaneously.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the present invention is along the cross section structure schematic diagram of described return air casing and workspace critical surface;
Fig. 3 is plan structure schematic diagram of the present invention.
By reference to the accompanying drawings, make the following instructions:
1---outer case 2---return air casing
3---air-supply casing 4---workspace
5---fan supporter 6---ventilator
7---roughing efficiency air filter 8---medium effeciency filter
9---high efficiency particulate air filter 10---current-sharing film
11---control panel 12---teardrop lamp
13---switch jack panel 14---differential pressure indicator
15---emergency button 16---air velocity transducer
17---access door 18---air outlet
The specific embodiment
By reference to the accompanying drawings, the present invention is elaborated, but protection scope of the present invention is not limited to following embodiment.
Between a kind of negative pressure weighing, comprise outer case 1 and be located at return air casing 2, air-supply casing 3 and workspace 4 in this outer case, described air-supply casing is located in upper area in described outer case, and its lateral surface and described outer case are tightly connected; Described return air casing is located at a side place in the zone that is positioned at described air-supply casing below in described outer case, and described air-supply casing, return air casing and outer case surround described workspace jointly; Be provided with fan supporter 5 and be located at ventilator 6 on this fan supporter in described return air casing, and the air outlet of this ventilator leads in described air-supply casing; Be provided with roughing efficiency air filter 7 at described return air casing below near a side of described workspace, be positioned at the below of described fan supporter in this return air casing and be provided with medium effeciency filter 8 over against this roughing efficiency air filter place; Described air-supply casing is provided with high efficiency particulate air filter 9 corresponding to the intersection of described air-supply casing and workspace, and the downside of the vicinity described workspace of described air-supply casing is provided with air outlet, and this air outlet is provided with current-sharing film 10.Like this, the wind of drawing from ventilator be introduced in the air-supply casing and successively the high efficiency particulate air filter in it and drainage film be incorporated into the workspace, thereby guaranteed the uniformity of degree of closing and the air-flow of return air; Wind through the workspace is introduced in the return air casing again, be incorporated into again ventilator through roughing efficiency air filter and medium effeciency filter successively in the return air casing, make the dust that distribute the workspace be captured and deliver to again ventilator by first, medium effeciency filter, circulation so successively, thereby form stable negative pressure way flow, and the cleanliness factor of the workspace that guarantees air-supply, satisfy pharmaceutical factory GMP requirement.Reuse after can be periodically changed or cleaned for the current-sharing film.
Preferably, be provided with switch board in described return air casing, the side that described air-intaking box body is positioned at described workspace is provided with control panel 11, and this control panel is controlled the duty of described ventilator, roughing efficiency air filter, medium effeciency filter and high efficiency particulate air filter by described switch board.The staff can operate switch board by control panel in the workspace, thereby controls the duty of ventilator, roughing efficiency air filter, medium effeciency filter and high efficiency particulate air filter etc.
Preferably, be provided with teardrop lamp 12 in upper side and the position, corresponding described workspace of described air-supply casing, the switch jack panel 13 of this teardrop lamp is arranged on described control panel.
Preferably, also be provided with differential pressure indicator 14 and emergency button 15 for the induction air flow size on described control panel.
Preferably, be provided with air velocity transducer 16 on the lateral surface of described return air casing and workspace vicinity.
Preferably, also be provided with access door 17 on described return air casing, this access door is connected by doorframe and described return air casing.
Preferably, described ventilator is connected with described fan supporter by damper, and receives repeatedly in described air-supply casing by flexible pipe it is blown.
Preferably, described return air casing and return air casing are the stainless steel rectangular structure, and described outer case is one of stainless steel sheet metal, two-sided stainless steel rock wool and paper honeycomb structure.
Preferably, be provided with air outlet 18 on a side of the high efficiency particulate air filter of described air-supply casing, separately be provided with the size that control valve is adjusted this air outlet exhaust air rate, and the exhaust air rate adjustable range be the 10%-15% of total blast volume.
Preferably, described high efficiency particulate air filter is connected with described air-supply casing medial surface by stainless steel frame, and silica gel sealing is adopted in the junction; Described roughing efficiency air filter is connected with medium effeciency filter by stainless steel frame and is connected with described return air casing; Described return air support is screwed on described outer case.

Claims (10)

1. between a negative pressure weighing, it is characterized in that: comprise outer case (1) and be located at the return air casing (2) in this outer case, blow casing (3) and workspace (4), described air-supply casing is located in upper area in described outer case, and its lateral surface and described outer case are tightly connected; Described return air casing is located at a side place in the zone that is positioned at described air-supply casing below in described outer case, and described air-supply casing, return air casing and outer case surround described workspace jointly; Be provided with fan supporter (5) and be located at ventilator (6) on this fan supporter in described return air casing, and the air outlet of this ventilator leads in described air-supply casing; Be provided with roughing efficiency air filter (7) at described return air casing below near a side of described workspace, be positioned at the below of described fan supporter in this return air casing and be provided with medium effeciency filter (8) over against this roughing efficiency air filter place; Described air-supply casing is provided with high efficiency particulate air filter (9) corresponding to the intersection of described air-supply casing and workspace, and the downside of the vicinity described workspace of described air-supply casing is provided with air outlet, and this air outlet is provided with current-sharing film (10).
2. between negative pressure weighing according to claim 1, it is characterized in that: be provided with switch board in described return air casing, the side that described air-intaking box body is positioned at described workspace is provided with control panel (11), and this control panel is controlled the duty of described ventilator, roughing efficiency air filter, medium effeciency filter and high efficiency particulate air filter by described switch board.
3. between negative pressure weighing according to claim 2, it is characterized in that: upper side and position, corresponding described workspace at described air-supply casing are provided with teardrop lamp (12), and the switch jack panel of this teardrop lamp (13) is arranged on described control panel.
4. between negative pressure weighing according to claim 2, it is characterized in that: also be provided with differential pressure indicator (14) and emergency button (15) for the induction air flow size on described control panel.
5. between negative pressure weighing according to claim 1 and 2, it is characterized in that: be provided with air velocity transducer (16) on the lateral surface of described return air casing and workspace vicinity.
6. between negative pressure weighing according to claim 1 and 2, it is characterized in that: also be provided with access door (17) on described return air casing, this access door is connected by doorframe and described return air casing.
7. between negative pressure weighing according to claim 1 and 2, it is characterized in that: described ventilator is connected with described fan supporter by damper, and receives repeatedly in described air-supply casing by flexible pipe it is blown.
8. between negative pressure weighing according to claim 1 and 2, it is characterized in that: described return air casing and return air casing are the stainless steel rectangular structure, and described outer case is one of stainless steel sheet metal, two-sided stainless steel rock wool and paper honeycomb structure.
9. between negative pressure weighing according to claim 1 and 2, it is characterized in that: be provided with air outlet (18) on a side of the high efficiency particulate air filter of described air-supply casing, separately be provided with control valve and adjust the size of this air outlet exhaust air rate, and the exhaust air rate adjustable range is the 10%-15% of total blast volume.
10. between negative pressure weighing according to claim 1 and 2, it is characterized in that: described high efficiency particulate air filter is connected with described air-supply casing medial surface by stainless steel frame, and silica gel sealing is adopted in the junction; Described roughing efficiency air filter is connected with medium effeciency filter by stainless steel frame and is connected with described return air casing; Described return air support is screwed on described outer case.
CN 201210135677 2012-05-04 2012-05-04 Negative-pressure weighing room Pending CN103382778A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201210135677 CN103382778A (en) 2012-05-04 2012-05-04 Negative-pressure weighing room

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201210135677 CN103382778A (en) 2012-05-04 2012-05-04 Negative-pressure weighing room

Publications (1)

Publication Number Publication Date
CN103382778A true CN103382778A (en) 2013-11-06

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103641048A (en) * 2013-12-11 2014-03-19 上海新旭发机械科技有限公司 Cleaning and protecting system for plugging device
CN104964415A (en) * 2015-07-10 2015-10-07 苏州华达仪器设备有限公司 Flow rectifier in negative-pressure weighing chamber
CN105064734A (en) * 2015-07-10 2015-11-18 苏州华达仪器设备有限公司 Automatic negative pressure weighing room
CN105169822A (en) * 2015-09-11 2015-12-23 无锡零界净化设备有限公司 Air curtain partition device of negative pressure weighing room
CN105987433A (en) * 2014-12-25 2016-10-05 世源科技工程有限公司 Air treatment system
CN106225138A (en) * 2016-08-24 2016-12-14 苏州华泰空气过滤器有限公司 A kind of pharmacy train line negative-pressure isolation device
CN104499735B (en) * 2014-08-12 2017-03-15 苏州悠远环境科技有限公司 A kind of negative pressure weighs cover
CN111282944A (en) * 2018-12-10 2020-06-16 宝群电子科技(上海)有限公司 Air flow guiding system of automation equipment
CN112429188A (en) * 2020-11-06 2021-03-02 江南造船(集团)有限责任公司 Laboratory for controlling positive air pressure and negative air pressure of ship cabin

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103641048A (en) * 2013-12-11 2014-03-19 上海新旭发机械科技有限公司 Cleaning and protecting system for plugging device
CN104499735B (en) * 2014-08-12 2017-03-15 苏州悠远环境科技有限公司 A kind of negative pressure weighs cover
CN105987433A (en) * 2014-12-25 2016-10-05 世源科技工程有限公司 Air treatment system
CN105987433B (en) * 2014-12-25 2019-04-09 世源科技工程有限公司 Air treatment system
CN104964415A (en) * 2015-07-10 2015-10-07 苏州华达仪器设备有限公司 Flow rectifier in negative-pressure weighing chamber
CN105064734A (en) * 2015-07-10 2015-11-18 苏州华达仪器设备有限公司 Automatic negative pressure weighing room
CN105169822A (en) * 2015-09-11 2015-12-23 无锡零界净化设备有限公司 Air curtain partition device of negative pressure weighing room
CN105169822B (en) * 2015-09-11 2017-05-10 无锡零界净化设备股份有限公司 Air curtain partition device of negative pressure weighing room
CN106225138A (en) * 2016-08-24 2016-12-14 苏州华泰空气过滤器有限公司 A kind of pharmacy train line negative-pressure isolation device
CN111282944A (en) * 2018-12-10 2020-06-16 宝群电子科技(上海)有限公司 Air flow guiding system of automation equipment
CN112429188A (en) * 2020-11-06 2021-03-02 江南造船(集团)有限责任公司 Laboratory for controlling positive air pressure and negative air pressure of ship cabin

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Application publication date: 20131106