CN204299211U - A kind of negative pressure weighing room - Google Patents

A kind of negative pressure weighing room Download PDF

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Publication number
CN204299211U
CN204299211U CN201420659097.2U CN201420659097U CN204299211U CN 204299211 U CN204299211 U CN 204299211U CN 201420659097 U CN201420659097 U CN 201420659097U CN 204299211 U CN204299211 U CN 204299211U
Authority
CN
China
Prior art keywords
air
weighing room
negative
negative pressure
filter
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.)
Expired - Fee Related
Application number
CN201420659097.2U
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Chinese (zh)
Inventor
成飞
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.)
WUJIANG HENGNUO PURIFICATION EQUIPMENT Co Ltd
Original Assignee
WUJIANG HENGNUO PURIFICATION EQUIPMENT 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 WUJIANG HENGNUO PURIFICATION EQUIPMENT Co Ltd filed Critical WUJIANG HENGNUO PURIFICATION EQUIPMENT Co Ltd
Priority to CN201420659097.2U priority Critical patent/CN204299211U/en
Application granted granted Critical
Publication of CN204299211U publication Critical patent/CN204299211U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of negative pressure weighing room, comprise weighing room's body and negative pressure chamber, described weighing room's body comprises rear channels and top passageway, the bottom of rear channels is provided with negative-pressure air fan, the rear channels of negative-pressure air fan front end is provided with air inlet, weighing room is provided with above negative-pressure air fan, the front end of top passageway is provided with air outlet, the air inlet of rear channels is provided with roughing efficiency air filter, the front end of described top passageway is provided with high efficiency particulate air filter, and rear end is provided with air-flow plate.Negative pressure weighing room of the present utility model; adopt the airflow pattern of vertical way flow; air intake first will pass through the pre-filtering of roughing efficiency air filter and medium effeciency filter; big dust particle particle in air-flow is disposed; preliminary purification air is to play the effect of protection blower fan and high efficiency particulate air filter; through pretreated air again by high efficiency particulate air filter, make it to reach hundred grades of purity requirements, greatly strengthen filter effect.

Description

A kind of negative pressure weighing room
Technical field
The utility model belongs to weighing equipment field, particularly relates to a kind of negative pressure weighing room.
Background technology
Negative pressure weighing room is a kind of local cleaning apparatus special for places such as pharmacy, microbe research and scientific experiments, it provides a kind of vertical one-way gas flow, part pure air circulates in workspace, part is expelled near zone, workspace is made to produce negative pressure, prevent cross pollution, for ensureing the high-cleanness, high environment of workspace.Carry out dust in a device, reagent weigh, packing, can control dust, reagent excessive, raise up, prevent dust, reagent to the inhalation hazard of human body, also avoid the cross pollution of dust, reagent, the safety of protection external environment and indoor occupant.
Existing negative pressure weighing room generally only has a high efficiency particulate air filter to filter, the poor effect of filtering, filter is short for service life, and the junction between weighing room's body and high efficiency particulate air filter framework seals tight not, sealing joint strip does not have sealing effectiveness, often has serious leakage phenomenon; Weighing room's body is with excessive with the spacing of high efficiency particulate air filter, and easily form airtight self-loopa, contaminated air band is not walked, and does not so just reach the effect of hundred grades of laminar flows.
Utility model content
The purpose of this utility model is to provide a kind of negative pressure weighing room, be intended to solve existing negative pressure weighing room sealing effectiveness and filter effect not good, easily produce the problem revealed.
The utility model realizes like this, a kind of negative pressure weighing room comprises weighing room's body and negative pressure chamber, described weighing room's body comprises rear channels and top passageway, the bottom of rear channels is provided with negative-pressure air fan, the rear channels of negative-pressure air fan front end is provided with air inlet, be provided with weighing room above negative-pressure air fan, the front end of top passageway is provided with air outlet.
Further, the air inlet of described rear channels is provided with roughing efficiency air filter.
Further, the front end of described top passageway is provided with high efficiency particulate air filter, and rear end is provided with air-flow plate.
the advantage that the utility model brings and good effect are:negative pressure weighing room of the present utility model; adopt the airflow pattern of vertical way flow; air intake first will pass through the pre-filtering of roughing efficiency air filter and medium effeciency filter; big dust particle particle in air-flow is disposed; preliminary purification air is to play the effect of protection blower fan and high efficiency particulate air filter; through pretreated air again by high efficiency particulate air filter, make it to reach hundred grades of purity requirements, greatly strengthen filter effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the negative pressure weighing room that the utility model embodiment provides;
In figure: 1, weighing room's body; 2, negative pressure chamber; 3, rear channels; 4, top passageway; 5, negative-pressure air fan; 6, air inlet; 7, weighing room; 8, air outlet.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 shows the structure of negative pressure weighing room of the present utility model, as shown in the figure, the utility model realizes like this, a kind of negative pressure weighing room comprises weighing room's body 1 and negative pressure chamber 2, described weighing room's body 1 comprises rear channels 3 and top passageway 4, and the bottom of rear channels 3 is provided with negative-pressure air fan 5, and the rear channels 3 of negative-pressure air fan 5 front end is provided with air inlet 6, be provided with weighing room 7 above negative-pressure air fan 5, the front end of top passageway 4 is provided with air outlet 8.
Further, air inlet 6 place of described rear channels 3 is provided with roughing efficiency air filter.
Further, the front end of described top passageway 4 is provided with high efficiency particulate air filter, and rear end is provided with air-flow plate.
Negative pressure weighing room of the present utility model; adopt the airflow pattern of vertical way flow; air intake first will pass through the pre-filtering of roughing efficiency air filter and medium effeciency filter; big dust particle particle in air-flow is disposed; preliminary purification air is to play the effect of protection blower fan and high efficiency particulate air filter; through pretreated air again by high efficiency particulate air filter, make it to reach hundred grades of purity requirements, greatly strengthen filter effect.
By reference to the accompanying drawings detailed description of the invention of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that performing creative labour can make still within protection domain of the present utility model.

Claims (3)

1. a negative pressure weighing room, it is characterized in that, described negative pressure weighing room comprises weighing room's body and negative pressure chamber, described weighing room's body comprises rear channels and top passageway, the bottom of rear channels is provided with negative-pressure air fan, the rear channels of negative-pressure air fan front end is provided with air inlet, is provided with weighing room above negative-pressure air fan, and the front end of top passageway is provided with air outlet.
2. negative pressure weighing room as claimed in claim 1, it is characterized in that, the air inlet of described rear channels is provided with roughing efficiency air filter.
3. negative pressure weighing room as claimed in claim 1, it is characterized in that, the front end of described top passageway is provided with high efficiency particulate air filter, and rear end is provided with air-flow plate.
CN201420659097.2U 2014-11-06 2014-11-06 A kind of negative pressure weighing room Expired - Fee Related CN204299211U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420659097.2U CN204299211U (en) 2014-11-06 2014-11-06 A kind of negative pressure weighing room

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420659097.2U CN204299211U (en) 2014-11-06 2014-11-06 A kind of negative pressure weighing room

Publications (1)

Publication Number Publication Date
CN204299211U true CN204299211U (en) 2015-04-29

Family

ID=53104758

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420659097.2U Expired - Fee Related CN204299211U (en) 2014-11-06 2014-11-06 A kind of negative pressure weighing room

Country Status (1)

Country Link
CN (1) CN204299211U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN114459089A (en) * 2022-02-11 2022-05-10 杭州卓尔净化工程有限公司 Sterile self-purification air circulating device for weighing room

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN114459089A (en) * 2022-02-11 2022-05-10 杭州卓尔净化工程有限公司 Sterile self-purification air circulating device for weighing room

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150429

Termination date: 20171106

CF01 Termination of patent right due to non-payment of annual fee