CN113049072A - Weighing device with flow equalizing air curtain structure in clean room - Google Patents
Weighing device with flow equalizing air curtain structure in clean room Download PDFInfo
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- CN113049072A CN113049072A CN202110268343.6A CN202110268343A CN113049072A CN 113049072 A CN113049072 A CN 113049072A CN 202110268343 A CN202110268343 A CN 202110268343A CN 113049072 A CN113049072 A CN 113049072A
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- 238000005303 weighing Methods 0.000 title claims abstract description 42
- 230000000903 blocking effect Effects 0.000 claims abstract description 27
- 238000001514 detection method Methods 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 abstract description 13
- 239000000428 dust Substances 0.000 description 19
- 239000003153 chemical reaction reagent Substances 0.000 description 12
- 239000012528 membrane Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000012864 cross contamination Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 3
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ventilation (AREA)
Abstract
The invention relates to the technical field of weighing equipment in a workshop, in particular to a weighing device with a flow equalizing air curtain structure in a clean room, which comprises a main machine body, wherein the main machine body comprises a vertical cabinet and a top cabinet arranged at the top of the vertical cabinet, the front side of the vertical cabinet is an inwards concave operation position, the top cabinet extends out to the front side of the vertical cabinet, and a downward flow equalizing air port and an air curtain port are arranged at the extending part; the air curtain opening is internally provided with a first flow control assembly used for controlling the flow of air, the top cabinet is also provided with an air flow outer discharge opening, and the air flow outer discharge opening is provided with a second flow control assembly used for controlling the flow of air. The airflow control structure of the weighing device is optimized and improved, so that the gas flow controllability of the weighing device is stronger, airflow with required strength can be provided in the operation position, the airflow is subjected to shunting treatment according to actual requirements, an airflow barrier can be formed on the outer side of the operation position to enhance the blocking effect, and the airflow is discharged outwards to be shunted, so that the strength of the airflow is reduced.
Description
Technical Field
The invention relates to the technical field of weighing equipment in a workshop, in particular to a weighing device with a flow equalizing air curtain structure in a clean room.
Background
The clean workshop engineering is applied to the fields of military industry, food, medical treatment, pharmacy, optics, electronics, laboratories and the like. The clean workshop purification engineering level becomes a standard for measuring the scientific and technological level of a country. The clean degree of workshop and the continuous stability of control pollution are the core standard of inspection clean room quality, and the weighing room is a special local clarification plant for places such as pharmacy, microbiological research and scientific experiment, and it provides a vertical one-way air current, and part of clean air circulates in the workspace, and part is discharged to near region, makes the workspace produce the negative pressure, prevents cross contamination, is used for guaranteeing the high cleanliness environment of workspace.
When the weighing room is used for the ratio of medicine to weigh, carry out weighing, the partial shipment of dust and reagent, can control dust and reagent excessive, raise, prevent that dust and reagent from causing the suction hazard to the human body, still avoid the cross contamination of dust and reagent, protect external environment and indoor personnel's safety.
However, the existing weighing chamber only controls the airflow through the airflow guide structure in one fixed direction, and cannot control the flow rate of the airflow, so that the flow rate of the airflow in a local range is always kept unchanged, and the problems of excessive airflow or insufficient airflow exist.
Therefore, the structure of the weighing chamber needs to be optimized and improved to meet the requirement of controlling the airflow, so that a more reasonable technical scheme needs to be provided, and the defects in the prior art are overcome.
Disclosure of Invention
In order to solve the defects of the prior art mentioned in the above, the invention provides a weighing device with a flow equalizing air curtain structure in a clean room, and the flow of gas in the device can be adjusted and the gas flow can be kept in a reasonable range under the condition of not changing the working power of the device by arranging the corresponding gas flow control structure on the weighing device.
In order to achieve the purpose, the invention specifically adopts the technical scheme that:
a weighing device with a flow equalizing air curtain structure in a clean room comprises a main machine body, wherein the main machine body comprises a vertical cabinet and a top cabinet arranged at the top of the vertical cabinet, the front side of the vertical cabinet is an inwards concave operation position, the top cabinet extends out of the front side of the vertical cabinet, and a downward flow equalizing air port and an air curtain port are arranged at the extending part of the top cabinet; the air curtain opening is internally provided with a first flow control assembly used for controlling the flow of air, the top cabinet is also provided with an air flow outer discharge opening, and the air flow outer discharge opening is provided with a second flow control assembly used for controlling the flow of air.
According to the weighing device disclosed by the invention, the unidirectional flow equalizing gas is conveyed to the operation position through the flow equalizing gas port of the top cabinet, so that the situations of scattering, rising and the like of powder and reagent in the weighing chamber are avoided; meanwhile, the air curtain port conveys air flow with slightly high flow speed downwards, an air curtain is formed on the outer side of the operation position, and an air flow barrier is formed on the outer side of the operation position, so that cross contamination of internal and external dust and reagents can be effectively avoided. The airflow discharging port on the top cabinet shares certain airflow, and when the airflow in the top cabinet is strong, a part of the airflow is released through the airflow discharging port; when the airflow in the top cabinet is weak, the airflow outlet is closed to make all the airflow flow to the operation position.
Further, the air curtain port provided by the invention can be provided with various structures, which are not limited only, and is optimized and one of the possible schemes is shown: the air curtain port is communicated with a first air flow channel in the top cabinet, and the first flow control assembly is arranged in the first air flow channel. When the scheme is adopted, the airflow entering the top cabinet flows to the air curtain opening through the first airflow channel and flows out from the air curtain opening to form the airflow barrier.
Still further, in order to facilitate the control of the direction of the air flow barrier, the air curtain port is generally arranged vertically downwards, and the orientation of the air curtain port can be adjusted according to the requirement of the arrangement of the barrier area of the actual operation position.
Further, the first flow control assembly disclosed in the present invention is used for controlling the flow rate in the first air flow channel, and the strength of the air flow barrier is adjusted while the strength of the air flow equalizing port is considered, the structure of the first flow control assembly in the present invention is not limited uniquely, and the first flow control assembly is optimized and one of the feasible schemes is provided: the first flow control assembly comprises a plurality of first air flow resistance blocking pieces, and the first air flow resistance blocking pieces are driven by the first driving device to change the angle so as to adjust the opening degree of the first air flow channel. When the scheme is adopted, the first air flow resistance blocking piece can be set into one piece or multiple pieces, and the flow is adjusted in the rotation process of the first air flow resistance blocking piece.
Similarly, the structural arrangement of the air flow outlet is not limited, and is optimized and one of the possible schemes is shown: the air flow outer discharge port is communicated with a second air flow channel in the top cabinet, and the second flow control assembly is arranged in the second air flow channel.
Still further, the second flow control assembly used in the present invention is used for controlling the flow rate in the second airflow channel, and the structure is not limited, and one of the possible options is as follows: the second flow control assembly comprises a plurality of second airflow blocking pieces, and the second airflow blocking pieces are driven by the second driving device to change the angle so as to adjust the opening degree of the second airflow channel. When the scheme is adopted, the second airflow blocking piece can be arranged into one piece or a plurality of pieces, and the flow is adjusted in the rotating process of the first airflow blocking piece.
Furthermore, in the process of exhausting the air flow outwards from the top cabinet, in order to prevent external sundries from reversely entering the top cabinet, the structure of the air flow outlet is optimized, and an air exhaust pore plate is arranged at the air flow outlet. When the scheme is adopted, the exhaust pore plate shields the air flow outer discharge port, the air flow of the second air flow channel in the air flow outer discharge port can be discharged outwards, but external dust is difficult to enter the second air flow channel, particularly positive pressure is formed in the second air flow channel, and blocking is formed on impurities such as the external dust.
Further, in the space in the top cabinet, the air current forms the malleation and flows to air curtain mouth, air current external row mouth and the gas port that flow equalizes, in order to improve the clean degree of air current, avoids causing pollution, the destruction of environment from the air current of getting rid of in the top cabinet, optimizes the space in the top cabinet, mentions one of them feasible selection here: the top cabinet in be provided with first high efficiency filter group and second high efficiency filter group, first high efficiency filter group closes with the air current runner of second high efficiency filter group in the position of stretching out of top cabinet and blocks, the air current through first high efficiency filter group flows to air curtain mouth and air current outward discharge mouth, the air current through second high efficiency filter group flows to the gas port that flow equalizes.
Still further, the department that flow equalizes the gas port is provided with the membrane that flow equalizes, and the air current of handling through the second high efficiency filter evenly flows downwards after the effect of membrane that flow equalizes and discharges, and the area that flow equalizes the gas port and flow equalizes the membrane and is greater than the perpendicular projection area on ground of operation position, so can ensure that the within range of whole operation position all receives the effect of one-way even air current, can play better protection.
Further, when the whole weighing device works, the air flow circulation is formed by the negative pressure, and various air flow circulation schemes can be adopted, which are not limited only, and the scheme is optimized and one of the feasible options is shown: a fan is arranged in the vertical cabinet, an air inlet of the fan is communicated to the lower portion of the vertical cabinet, and an air outlet of the fan is communicated upwards to the inside of the top cabinet. When adopting such scheme, set up the wind gap structure in the lower part of clothes closet, wind gap structure department sets up corresponding inlet orifice plate, can block the entering of impurity such as certain dust, reagent through inlet orifice plate. An air outlet of the fan can be upwards provided with a conveying channel communicated to the top cabinet, an included angle is formed between the top cabinet and the vertical cabinet, and the trend of the conveying channel is correspondingly changed.
Further, in order to enhance the purification treatment of the inlet air flow and reduce the burden of the high-efficiency filter, the air flow inlet structure at the air inlet is optimized, and one of the feasible options is as follows: the air inlet is provided with a primary filter and a secondary filter. When the scheme is adopted, the primary filter and the middle filter sequentially purify the entering air flow and remove dust and reagents with medium and large particle sizes.
Furthermore, in order to confirm the airflow flow and intensity of the operation position in time and detect the airflow condition at the operation position in real time, one of the possible options is as follows: and the vertical cabinet is provided with a wind speed detection device.
And the wind speed detection device comprises a wind speed probe which extends out of the vertical cabinet to an operation position, can measure the flow speed of the airflow when the flow-equalizing airflow flows through, and can further calculate the strength and other information of the airflow according to the flow speed.
Compared with the prior art, the invention has the beneficial effects that:
the airflow control structure of the weighing device is optimized and improved, so that the gas flow controllability of the weighing device is stronger, airflow with required strength can be provided in the operation position, the airflow is subjected to shunting treatment according to actual requirements, an airflow barrier can be formed on the outer side of the operation position to enhance the blocking effect, and the airflow is discharged outwards to be shunted, so that the strength of the airflow is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of the weighing apparatus in front view.
FIG. 2 is a schematic side view of the weighing apparatus.
In the above drawings, the meanings of the respective symbols are: 1. a clothes closet; 2. a top cabinet; 3. an air exhaust orifice plate; 4. an air inlet hole plate; 5. a switch button; 6. a socket; 7. a touch display screen; 8. a differential pressure gauge; 9. a wind speed detection device; 10. a primary filter; 11. a medium-efficiency filter; 12. a fan; 13. a delivery channel; 14. a high efficiency filter; 15. a second airflow channel; 16. an air flow outlet; 17. a first air flow passage; 18. an air curtain port; 19. flow equalization membrane.
Detailed Description
The invention is further explained below with reference to the drawings and the specific embodiments.
It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
Examples
To only provide the air current that flow equalizes to present negative pressure weighing room, can not carry out the current situation of adjustment control, this embodiment provides a weighing device, can effectively solve the defect among the prior art.
Specifically, the technical solution disclosed in this embodiment is as follows:
as shown in fig. 1 and 2, a weighing device with a flow equalizing air curtain structure in a clean room comprises a main machine body, wherein the main machine body comprises a vertical cabinet 1 and a top cabinet 2 arranged at the top of the vertical cabinet 1, the front side of the vertical cabinet 1 is an inwards concave operation position, the top cabinet 2 extends out of the front side of the vertical cabinet 1, and a downward flow equalizing air port and an air curtain port 18 are arranged at the extending part; the air curtain opening 18 is internally provided with a first flow control assembly for controlling the flow of air, the top cabinet 2 is also provided with an air flow external discharge opening 16, and the air flow external discharge opening 16 is provided with a second flow control assembly for controlling the flow of air.
According to the weighing device, the one-way flow equalizing gas is conveyed to the operation position through the flow equalizing gas port of the top cabinet 2, so that the situations of scattering, rising and the like of powder and reagents in the weighing chamber are avoided; meanwhile, the air curtain port 18 conveys air flow with slightly high flow speed downwards, an air curtain is formed outside the operation position, and an air flow barrier is formed outside the operation position, so that cross contamination of internal and external dust and reagents can be effectively avoided. The airflow external discharge port 16 on the top cabinet 2 shares certain airflow, and when the airflow in the top cabinet 2 is strong, a part of the airflow is released through the airflow external discharge port 16; when the airflow in the top case 2 is weak, the airflow outlet 16 is closed to allow the entire airflow to flow to the operation position.
In some embodiments, the air curtain port 18 can be configured in various configurations, but is not limited to this, and the present embodiment is optimized and adopts one of the possible solutions: the air curtain port 18 is connected to a first air flow passage 17 in the top cabinet 2, and the first flow control assembly is disposed in the first air flow passage 17. With this arrangement, the airflow entering the top cabinet 2 flows through the first airflow channel 17 to the air curtain port 18, and flows out from the air curtain port 18 to form an airflow barrier.
In order to facilitate the control of the direction of the air flow barrier, the air curtain port 18 is generally arranged vertically downward, and the orientation of the air curtain port 18 can be adjusted according to the requirements of the arrangement of the barrier area of the actual operation position.
Preferably, the air curtain opening 18 in this embodiment is linear and is disposed at three outer edges of the operating site, and forms a U-shaped air curtain barrier at the outer side of the operating site and surrounds the front side of the cabinet 1.
The first flow control assembly is used for controlling the flow in the first air flow channel 17, and the strength of the air flow barrier is adjusted while the strength of the air flow equalizing port is considered, in some embodiments, the structure of the first flow control assembly is not limited, and the present embodiment is optimized and adopts one of the feasible schemes: the first flow control assembly comprises a plurality of first air flow resistance blocking pieces, and the first air flow resistance blocking pieces are driven by a first driving device to change the angle so as to adjust the opening degree of the first air flow channel 17. When the scheme is adopted, the first air flow resistance blocking piece can be set into one piece or multiple pieces, and the flow is adjusted in the rotation process of the first air flow resistance blocking piece.
Preferably, the first airflow resistance blocking piece is arranged as a piece, and the first driving device can adopt a servo motor and other equipment capable of accurately controlling the rotation angle.
Similarly, in some embodiments, the structural arrangement at the airflow outlet 16 is not limited, and the embodiment is optimized and adopts one of the possible schemes: the air flow outer discharge port 16 is communicated with a second air flow channel 15 towards the inside of the top cabinet 2, and the second flow control assembly is arranged in the second air flow channel 15.
The second flow control assembly is used to control the flow in the second air flow channel 15, and in some embodiments, the structure is not limited, and the present embodiment is optimized and uses one of the feasible options: the second flow control assembly comprises a plurality of second airflow blocking pieces, and the second airflow blocking pieces are driven by a second driving device to change the angle so as to adjust the opening degree of the second airflow channel 15. When the scheme is adopted, the second airflow blocking piece can be arranged into one piece or a plurality of pieces, and the flow is adjusted in the rotating process of the first airflow blocking piece.
Preferably, the number of the second air flow blocking pieces is one, and the second driving device adopts equipment which can accurately control the rotation angle, such as a servo motor.
In the process of exhausting air flow outwards from the top cabinet 2, in order to prevent external sundries from reversely entering the top cabinet 2, the structure of the air flow outlet 16 is optimized, and the air flow outlet 16 is provided with an air exhaust pore plate 3. When the scheme is adopted, the air exhaust hole plate 3 shields the air flow outer exhaust port 16, the air flow of the second air flow channel 15 in the air flow outer exhaust port 16 can be discharged outwards, but external dust is difficult to enter the second air flow channel 15, particularly positive pressure is formed in the second air flow channel 15, and blocking is formed on impurities such as the external dust.
Preferably, the air discharge hole plate 3 can be a metal mesh plate.
In the space in the top cabinet 2, the air current forms the malleation and flows to air curtain mouth 18, air current external row mouth 16 and the gas port that flow equalizes, in order to improve the clean degree of air current, avoids causing pollution, the destruction of environment from the air current of removing in the top cabinet 2, optimizes the space in the top cabinet 2, cites one of them feasible selection here: the top cabinet 2 is internally provided with a first high-efficiency filter 14 group and a second high-efficiency filter 14 group, the first high-efficiency filter 14 group and the second high-efficiency filter 14 group enclose and block an airflow flow channel in a position where the top cabinet 2 extends out, the airflow passing through the first high-efficiency filter 14 group flows to an air curtain port 18 and an airflow outer discharge port 16, and the airflow passing through the second high-efficiency filter 14 group flows to a flow equalizing air port.
The even gas port department is provided with the membrane 19 that flow equalizes, and the even downward flow of the effect back of the membrane 19 that flows through the air current of second high efficiency filter 14 processing discharges, and the area that the gas port that flow equalizes and membrane 19 cover is greater than the perpendicular projection area on ground of operation position, so can ensure that the within range of whole operation position all receives the effect of one-way even air current, can play better protection.
Preferably, the flow equalizing air ports in this embodiment are square, and the flow equalizing membrane 19 is a piece and directly covers the flow equalizing air ports.
When the whole weighing device works, the air flow circulation is formed by the negative pressure, in some embodiments, various air flow circulation schemes can be adopted, and the scheme is not limited only, the embodiment is optimized and adopts one feasible selection: a fan 12 is arranged in the vertical cabinet 1, an air inlet of the fan 12 is communicated to the lower portion of the vertical cabinet 1, and an air outlet of the fan 12 is communicated upwards to the inside of the top cabinet 2. When adopting such scheme, set up the wind gap structure in the lower part of clothes closet 1, wind gap structure department sets up corresponding inlet orifice plate 4, can block the entering of impurity such as certain dust, reagent through inlet orifice plate 4. An air outlet of the fan 12 can be upwards provided with a conveying channel 13 communicated to the top cabinet 2, an included angle is formed between the top cabinet 2 and the vertical cabinet 1, and the trend of the conveying channel 13 is correspondingly changed.
Preferably, in this embodiment, an inverted L-shaped conveying channel 13 is disposed above the air outlet of the fan 12.
In order to enhance the purification treatment of the inlet air flow and reduce the burden of the high efficiency filter 14, the air inlet structure at the air inlet is optimized, and the embodiment adopts one of the feasible options: the air inlet is provided with a primary filter 10 and a secondary filter 11. When the scheme is adopted, the primary filter 10 and the intermediate filter 11 sequentially purify the entering air flow to remove dust and reagents with medium and large particle sizes.
In order to confirm the airflow flow and intensity of the operation position in time and detect the airflow condition at the operation position in real time, the embodiment adopts one of the feasible options: the vertical cabinet 1 is provided with a wind speed detection device 9.
Preferably, the wind speed detection device 9 includes a wind speed probe, the wind speed probe extends out of the vertical cabinet 1 to an operation position, the flow speed of the airflow can be measured when the flow-equalizing airflow flows through, and information such as the intensity of the airflow can be further calculated according to the flow speed.
Meanwhile, a plurality of components which are convenient for weighing and operation control are arranged in the operation position, and at least comprise a DOP (Dioctyl Phthalate) dust generating structure, a DOP detection structure, a touch display screen 7, a socket 6, a control switch button 5, a pressure difference meter 8, an illuminating lamp and the like. According to the actual weighing requirement, the structural components can be reasonably selected and arranged.
During actual operation, the device disclosed in this embodiment adopts the air current form of perpendicular uniflow, and the return air is earlier to be carried out the prefiltration through primary filter 10, handles the large granule dust particle in the air current. The pretreated air is filtered for the second time by the middle-effect filter 11, so as to fully protect the high-effect filter 14. Under the pressure provided by the centrifugal fan 12, the high-efficiency filter 14 is passed through to reach the cleaning requirement. Clean air flow is sent to the air box body of the top delivery cabinet 2, 90 percent of the clean air flow passes through the flow equalizing air supply screen plate to form uniform vertical air supply air flow, and 10 percent of the clean air flow passes through the control discharge equipment of the air flow blocking plate. All air flows are processed by the high-efficiency filter 14, so that air supply and exhaust do not carry residual dust, and secondary pollution is avoided. Since a stable unidirectional flow is formed in the working area, the dust emitted in this area is trapped by the primary and secondary filters 11 along with the air flow under the influence of the unidirectional air flow. The device is provided with 10% of exhaust air, so that negative pressure relative to the external environment is formed, the dust in the area is prevented from being diffused outdoors to a great extent, and the external environment is protected.
The above embodiments are just exemplified in the present embodiment, but the present embodiment is not limited to the above alternative embodiments, and those skilled in the art can obtain other various embodiments by arbitrarily combining with each other according to the above embodiments, and any other various embodiments can be obtained by anyone in light of the present embodiment. The above detailed description should not be construed as limiting the scope of the present embodiments, which should be defined in the claims, and the description should be used for interpreting the claims.
Claims (10)
1. The utility model provides an interior weighing device who sets up the air curtain structure that flow equalizes of toilet which characterized in that: the air conditioner comprises a main machine body, wherein the main machine body comprises a vertical cabinet (1) and a top cabinet (2) arranged at the top of the vertical cabinet (1), the front side of the vertical cabinet (1) is an inwards concave operation position, the top cabinet (2) extends out of the front side of the vertical cabinet (1), and a downward flow equalizing air port and an air curtain port (18) are arranged at the extending part; the air curtain opening (18) is internally provided with a first flow control assembly for controlling the air flow, the top cabinet (2) is also provided with an air flow outer discharge opening (16), and the air flow outer discharge opening (16) is provided with a second flow control assembly for controlling the air flow.
2. The weighing device with the flow equalizing air curtain structure in the clean room of claim 1, wherein: the air curtain port (18) is communicated with a first air flow channel (17) towards the inside of the top cabinet (2), and the first flow control assembly is arranged in the first air flow channel (17).
3. The weighing device with the flow equalizing air curtain structure in the clean room of claim 2, wherein: the first flow control assembly comprises a plurality of first air flow resistance blocking pieces, and the first air flow resistance blocking pieces are driven by the first driving device to change the angle so as to adjust the opening degree of the first air flow channel (17).
4. The weighing device with the flow equalizing air curtain structure in the clean room of claim 1, wherein: the air flow outer discharge port (16) is communicated with a second air flow channel (15) towards the inside of the top cabinet (2), and the second flow control assembly is arranged in the second air flow channel (15).
5. The weighing device with the flow equalizing air curtain structure in the clean room of claim 4, wherein: the second flow control assembly comprises a plurality of second air flow blocking pieces, and the second air flow blocking pieces are driven by a second driving device to change the angle so as to adjust the opening degree of the second air flow channel (15).
6. The weighing device with the flow equalizing air curtain structure in the clean room according to claim 1, 4 or 5, wherein the weighing device comprises: an air exhaust pore plate (3) is arranged at the air flow outer exhaust port (16).
7. The weighing device with the flow equalizing air curtain structure in the clean room of claim 1, wherein: top cabinet (2) in be provided with first high efficiency filter (14) group and second high efficiency filter (14) group, first high efficiency filter (14) group closes with the air current runner of second high efficiency filter (14) group in the position of stretching out of top cabinet (2) and blocks, air current flow direction air curtain mouth (18) and air current external row mouth (16) through first high efficiency filter (14) group, the air current flow direction gas port that flow equalizes through second high efficiency filter (14) group.
8. The weighing device with the flow equalizing air curtain structure in the clean room of claim 1, wherein: a fan (12) is arranged in the vertical cabinet (1), an air inlet of the fan (12) is communicated to the lower portion of the vertical cabinet (1), and an air outlet of the fan (12) is communicated upwards to the interior of the top cabinet (2).
9. The weighing device of claim 8, which is provided with a flow equalizing air curtain structure in a clean room, and is characterized in that: the air inlet is provided with a primary filter (10) and a middle filter (11).
10. The weighing device with the flow equalizing air curtain structure in the clean room of claim 1, wherein: the vertical cabinet (1) is provided with a wind speed detection device (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110268343.6A CN113049072A (en) | 2021-03-12 | 2021-03-12 | Weighing device with flow equalizing air curtain structure in clean room |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110268343.6A CN113049072A (en) | 2021-03-12 | 2021-03-12 | Weighing device with flow equalizing air curtain structure in clean room |
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| CN113049072A true CN113049072A (en) | 2021-06-29 |
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| CN202110268343.6A Pending CN113049072A (en) | 2021-03-12 | 2021-03-12 | Weighing device with flow equalizing air curtain structure in clean room |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116116329A (en) * | 2023-04-13 | 2023-05-16 | 成都圣恩生物科技股份有限公司 | Seasoning processing production line |
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