CN213251428U - Dry heat sterilization cabinet with negative pressure sealing structure - Google Patents
Dry heat sterilization cabinet with negative pressure sealing structure Download PDFInfo
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- CN213251428U CN213251428U CN202021313862.7U CN202021313862U CN213251428U CN 213251428 U CN213251428 U CN 213251428U CN 202021313862 U CN202021313862 U CN 202021313862U CN 213251428 U CN213251428 U CN 213251428U
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Abstract
The utility model relates to a dry heat sterilization cabinet with negative pressure seal structure, including the cabinet body, set up at the internal cavity of cabinet, install the cabinet door in cabinet body one side, cabinet body top is equipped with circulating fan, circulating fan is connected with the motor, cabinet side face is equipped with the air-supply line with the internal portion of cabinet intercommunication, internal air high efficiency filter and the heater of still being equipped with of cabinet, one side of cavity is equipped with the air-out passageway, and air-out passageway upper end is connected with the exhaust pipe, installs the check valve in the exhaust pipe, the gas hood is installed to the exit end of exhaust pipe, the cavity upper end is equipped with circulation channel, circulation channel link up with the air-out passageway, installs negative pressure fan in the circulation channel, the high temperature sealing layer. The utility model discloses a thereby the pressure differential that the different cross-section sizes formed between the negative pressure fan cooperation passageway produces the negative pressure, forms the negative pressure and seals, simple structure, and sealing performance is superior.
Description
Technical Field
The utility model relates to a dry heat sterilization field specifically is a dry heat sterilization cabinet with negative pressure seal structure.
Background
Dry heat sterilization is often used for sterilization of heat-resistant products, sterilization of substances that are not easily penetrated by heat or moisture, and sterilization of drugs or powders that are destroyed by moisture. The dry heat sterilization heats air through a heater, heat is transferred to a substance by taking hot air as a medium, the substance sends a series of physical and chemical changes, and the hot air takes away moisture on the substance through circulation, so that the aim of sterilization and drying is fulfilled. The nonmetal sealing strips adopted by the existing dry heat sterilization cabinet are easy to generate particles to pollute the cavity of the dry heat sterilization cabinet under the action of high temperature and long time, and the sealing property is also reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a dry heat sterilization cabinet with negative pressure seal structure to solve the problem that proposes among the above-mentioned background art.
The utility model provides a following technical scheme: the utility model provides a dry heat sterilization cabinet with negative pressure seal structure, includes the cabinet body, sets up at the internal cavity of cabinet, installs the cabinet door in cabinet body one side, cabinet body top is equipped with circulating fan, circulating fan is connected with the motor, cabinet side face is equipped with the air-supply line with the internal portion intercommunication of cabinet, internal air high efficiency filter and the heater of still being equipped with of cabinet, wherein, air high efficiency filter sets up in the one side that is close to the air-supply line, and the heater setting is in the one side that is close to the cavity, the opposite side of cavity is equipped with the air-out passageway, and air-out passageway upper end is connected with the exhaust pipe, installs the check valve in the exhaust pipe, the air shroud is installed to the exit end of exhaust pipe, the.
As a further aspect of the present invention: and a negative pressure fan is installed in the circulating channel, and the cross section area of the circulating channel is smaller than that of the air outlet channel.
As a further aspect of the present invention: the cabinet door is hinged on the cabinet body, and a high-temperature sealing layer is arranged on the inner wall surface of the cabinet door.
As a further aspect of the present invention: the cabinet door upper end is installed the control cabinet, control cabinet electric connection has motor, air high efficiency filter, heater and negative-pressure air fan.
As a further aspect of the present invention: the outer wall surface of the cavity is provided with a heat insulation layer, and the opening area of the cavity connected with the inlet of the air outlet channel is smaller than the longitudinal section area of the cavity.
As a further aspect of the present invention: and air baffles are arranged in the air inlet pipe and the air exhaust pipe.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a high temperature sealing layer replaces traditional non-metallic sealing strip, through the velocity of flow in the negative pressure fan increase circulation channel, thereby the pressure differential that the different cross-sectional sizes formed between the cooperation passageway produces the negative pressure, forms the negative pressure and seals, and sealing performance is superior, can not produce extra pollutant and influence the sterilization cabinet and normally work.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a partial view of the utility model at a.
The labels in the figure are: 1-a cabinet body; 2-a chamber; 201-an insulating layer; 3-a cabinet door; 4-high temperature sealing layer; 5-circulating wind; 501-a motor; 6-an air inlet pipe; 7-high efficiency air filter; 8-a filter holder; 9-a heater; 10-a heater fixture; 11-an air outlet channel; 12-a negative pressure fan; 13-a circulation channel; 14-an air baffle; 15-an exhaust pipe; 16-a one-way valve; 17-gas hood; 18-console.
Detailed Description
As shown in the figures, the embodiment provides a dry heat sterilization cabinet with a negative pressure sealing structure, which comprises a cabinet body 1, a chamber 2 arranged in the cabinet body 1, and a cabinet door 3 arranged on one side of the cabinet body 1, wherein a circulating fan 5 is arranged on the top end of the cabinet body 1, the circulating fan 5 is connected with a motor 501, an air inlet pipe 6 communicated with the inside of the cabinet body 1 is arranged on the side surface of the cabinet body 1, an air high-efficiency filter 7 and a heater 9 are further arranged in the cabinet body 1, the air high-efficiency filter 7 is arranged on one side close to the air inlet pipe 6, the heater 9 is arranged on one side close to the chamber 2, an air outlet channel 11 is arranged on the other side of the chamber 2, the upper end of the air outlet channel 11 is connected with an exhaust pipe 15, a one-way valve 16 is arranged in the exhaust pipe 15, an air hood 17 is arranged, the air high-efficiency filter 7 is installed in the cabinet body 1 through a filter bracket 8, and the heater 9 is installed in the cabinet body 1 through a heater bracket 10.
A negative pressure fan 12 is installed in the circulating channel 13, and the cross-sectional area of the circulating channel 13 is smaller than that of the air outlet channel 11. The cabinet door 3 is hinged on the cabinet body 1, and the inner wall surface of the cabinet door 1 is provided with a high-temperature sealing layer 4. The control console 18 is installed at the upper end of the cabinet door 3, and the control console 18 is electrically connected with the motor 501, the air high-efficiency filter 7, the heater 9 and the negative pressure fan 12. The outer wall surface of the cavity 2 is provided with a heat preservation layer 201, and the opening area of the cavity 2 connected with the inlet of the air outlet channel 11 is smaller than the longitudinal section area of the cavity 2. Air baffles 14 are arranged in the air inlet pipe 6 and the air outlet pipe 15.
The working principle of the utility model is as follows, when the negative pressure fan 12 operates, the air flow rate in the air outlet channel 11 and the circulating channel 13 is accelerated, and the cross-sectional area of the circulating channel 13 is smaller than that of the air outlet channel 11, so that the air pressure in the circulating channel 13 is higher than that in the air outlet channel 11, and the negative pressure is generated in the circulating channel 13, thereby accelerating the flowing circulation of the air; the opening area that air outlet channel 11 import is connected to cavity 2 is less than cavity 2 longitudinal section area for 11 interior atmospheric pressure of air outlet channel is higher than 2 interior atmospheric pressures of cavity, produces the negative pressure in air outlet channel 11, and cabinet door 3 cooperates this negative pressure to closely compress tightly high temperature sealing layer 4, and high temperature sealing layer 4 adopts graphite material, and graphite material can provide good sealed condition and adiabatic effect. The air baffle plates 14 arranged in the air inlet pipe 6 and the air outlet pipe 15 can adjust the air flow to adapt to the air flow rate and the pressure difference in each channel, the air baffle plates 14 can also play a role in noise reduction, the one-way valves 16 can prevent unfiltered air from participating in circulation from the air outlet pipe 15, and meanwhile, the exhausted air can be prevented from flowing backwards.
The motor 501, the negative pressure fan 12, the air high-efficiency filter 7 and the heater 9 are started by the console 18, the motor 501 drives the circulating fan 5 to operate, the circulating fan 5 and the negative pressure fan 12 enable the air in the circulating channel 13 to flow, the air is automatically sucked in the air inlet pipe 6, the air sucked in from the air inlet pipe 6 is filtered by the air high-efficiency filter 7 and heated by the heater 9 to flow through the chamber 2, the air outlet channel 11 and the circulating channel 13 and circulate in the cabinet 1, part of the air is exhausted out of the cabinet 1 through the exhaust pipe 15, when the air heated by the heater 9 gradually reaches a set temperature, the temperature of the heater 9 is adjusted to a heat preservation state, the heater 9 stops working after the heat preservation time is up, the chamber 2 and the channel in the cabinet 1 are gradually cooled along with the operation of the circulating fan 5 and the negative pressure fan 12, the sterilization process is finished, and the, A negative pressure fan 12 and an air high-efficiency filter 7.
Claims (6)
1. The utility model provides a dry heat sterilization cabinet with negative pressure seal structure, includes the cabinet body (1), sets up cavity (2) in the cabinet body (1), installs cabinet door (3) in cabinet body (1) one side, its characterized in that:
a circulating fan (5) is arranged at the top end of the cabinet body (1), the circulating fan (5) is connected with a motor (501), an air inlet pipe (6) communicated with the inside of the cabinet body (1) is arranged on the side surface of the cabinet body (1), an air high-efficiency filter (7) and a heater (9) are also arranged in the cabinet body (1), wherein, the air high-efficiency filter (7) is arranged at one side close to the air inlet pipe (6), the heater (9) is arranged at one side close to the chamber (2), an air outlet channel (11) is arranged at the other side of the chamber (2), an exhaust pipe (15) is connected at the upper end of the air outlet channel (11), a one-way valve (16) is arranged in the exhaust pipe (15), air hood (17) are installed to the exit end of exhaust pipe (15), cavity (2) upper end is equipped with circulation passageway (13), circulation passageway (13) link up with air-out passageway (11).
2. The dry heat sterilization cabinet with the negative pressure sealing structure as claimed in claim 1, wherein: a negative pressure fan (12) is installed in the circulating channel (13), and the cross-sectional area of the circulating channel (13) is smaller than that of the air outlet channel (11).
3. The dry heat sterilization cabinet with the negative pressure sealing structure as claimed in claim 1, wherein: the cabinet door (3) is hinged on the cabinet body (1), and the inner wall surface of the cabinet door (3) is provided with a high-temperature sealing layer (4).
4. The dry heat sterilization cabinet with the negative pressure sealing structure as claimed in claim 1, wherein: the cabinet door is characterized in that a control console (18) is installed at the upper end of the cabinet door (3), and the control console (18) is electrically connected with a motor (501), an air high-efficiency filter (7), a heater (9) and a negative pressure fan (12).
5. The dry heat sterilization cabinet with the negative pressure sealing structure as claimed in claim 1, wherein: the outer wall surface of the cavity (2) is provided with a heat insulation layer (201), and the opening area of the inlet of the air outlet channel (11) connected with the cavity (2) is smaller than the longitudinal section area of the cavity (2).
6. The dry heat sterilization cabinet with the negative pressure sealing structure as claimed in claim 1, wherein: air baffles (14) are arranged in the air inlet pipe (6) and the air exhaust pipe (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021313862.7U CN213251428U (en) | 2020-07-07 | 2020-07-07 | Dry heat sterilization cabinet with negative pressure sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021313862.7U CN213251428U (en) | 2020-07-07 | 2020-07-07 | Dry heat sterilization cabinet with negative pressure sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213251428U true CN213251428U (en) | 2021-05-25 |
Family
ID=75958490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021313862.7U Active CN213251428U (en) | 2020-07-07 | 2020-07-07 | Dry heat sterilization cabinet with negative pressure sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213251428U (en) |
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2020
- 2020-07-07 CN CN202021313862.7U patent/CN213251428U/en active Active
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