CN216513869U - Hot air circulating system and drug sensitivity analyzer - Google Patents
Hot air circulating system and drug sensitivity analyzer Download PDFInfo
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- CN216513869U CN216513869U CN202120563915.9U CN202120563915U CN216513869U CN 216513869 U CN216513869 U CN 216513869U CN 202120563915 U CN202120563915 U CN 202120563915U CN 216513869 U CN216513869 U CN 216513869U
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Abstract
The utility model discloses a hot air circulating system, comprising: the upper part and the lower part of the incubator are respectively provided with an air suction opening and an air supply opening; the air inlet of the air extracting fan is communicated with the air extracting opening; the heater is arranged at the air outlet of the exhaust fan; the air outlet of the air supply fan is communicated with the air supply outlet; the two ends of the circulating air duct are respectively communicated with the output end of the heater and the air inlet of the air supply fan; wherein, induced draft fan, heater, air supply fan and circulation wind channel all set up on the incubator. In addition, the utility model also discloses a drug sensitivity analyzer comprising the hot air circulating system. The whole hot air circulating system is simple and ingenious in design, the temperature in the incubator can be rapidly heated through the matching action of the exhaust fan, the heater and the air supply fan, the temperature in the incubator is controlled to be constant with high precision, and the accuracy of the identification and analysis result of the bacteria liquid in the incubator is guaranteed.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a hot air circulating system and a drug sensitivity analyzer.
Background
A microbe identification and drug sensitivity analyzer is used for identifying various pathogenic bacteria, mainly gram-negative bacteria, gram-positive bacteria, enterococcus, fungi and the like, and can be used for simultaneously carrying out an antibacterial drug sensitivity test to help clinicians to make correct etiological diagnosis and establish a treatment method.
The bacteria identification principle of the drug sensitivity analyzer is as follows: the traditional colorimetric method and the rapid fluorescence method are adopted. Different test cards are designed according to different physicochemical properties of different types of bacteria, and each test card comprises a plurality of biochemical reactions. The instrument adopts a photoelectric colorimetry to measure the change of the PH value of the bacteria caused by decomposing the substrate or the change of the transmittance of the bacteria caused by the substrate used for the growth of the bacteria; the fluorescence method is a method in which an enzyme substrate is added to a well of a test card and is allowed to bind to an enzyme produced by bacteria to produce a fluorescent substance. The instrument can analyze the substances which are generated by the bacteria and fluoresce to different biochemical substrates in a short time, and the fluorescence intensity is measured by a reader to judge the bacterial ectoenzyme; the speed can be improved by 4-8 times by adopting a fluorescence technology to identify bacteria. Two hours can provide an identification report. The bacteria identification experiment substrate has several different types, and instruments of different brands all use own test cards and corresponding reagents; enzyme-based reaction substrates, including chromogenic and fluorogenic substrates; the substrates based on the growth of the microorganisms are carbohydrate substrates and compound substrates, and also mixed substrates; the color change or the fluorescent substance is generated by oxidation, degradation and hydrolysis reaction with various bacteria, and the color development and the change of the fluorescent intensity are utilized. To identify the bacterial type.
The instrument mainly comprises a bacteria liquid inoculation and sealing device, a reader/constant-temperature incubator, a computer system, a test card and the like. The bacterial liquid inoculation and sealing device is used for injecting a sample to be tested into the test card and then sealing. The inside of the instrument is provided with a constant temperature incubator and a card reader. The incubator typically contains a carousel for holding test cards. The box is provided with an optoelectronic reader, monochromatic light emitted by the light path part scans each hole of each test card, changes of color or turbidity caused by decomposition or substrate utilization of bacteria are measured through photoelectric colorimetry or turbidimetry, the changed absorbance value is changed into an electric signal through the reader, and then the electric signal is analyzed and calculated by a computer.
The incubator needs to keep constant temperature to cultivate the bacterial liquid in the test card, the characteristics and functions of the incubator are constant temperature heating, and because some bacterial liquids need higher constant temperature control level for cultivation, the existing incubator only has a highly sensitive temperature sensor, and tries to realize higher constant temperature control level by using high-precision temperature control.
However, it is found through experiments that the fluctuation rate of the temperature inside the incubator is not only related to the heating efficiency, but also closely related to the flow of the hot air inside the whole incubator. Because the conditions of aerodynamic force and flow velocity related to the flow of hot air are complex and changeable, the existing incubator cannot achieve stable and high-precision constant temperature control in terms of actual temperature fluctuation rate.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a hot air circulating system and a drug sensitive analyzer, which can control the temperature in an incubator to be constant with high precision and ensure the accuracy of the identification and analysis result of the bacteria liquid in the incubator.
According to an embodiment of the first aspect of the present invention, a hot air circulation system includes: the upper part and the lower part of the incubator are respectively provided with an air suction opening and an air supply opening; the air inlet of the air extracting fan is communicated with the air extracting opening; the heater is arranged at the air outlet of the exhaust fan; the air outlet of the air supply fan is communicated with the air supply outlet; the two ends of the circulating air duct are respectively communicated with the output end of the heater and the air inlet of the air supply fan; wherein, the induced draft fan, the heater, the blower fan and the circulating air duct are all arranged on the incubator.
The hot air circulating system according to the embodiment of the first aspect of the utility model has at least the following advantages:
this hot air circulating system is at the during operation, and exhaust fan rotates, and the air in the incubator flows through the heater from the suction opening under exhaust fan's suction effect, and the air obtains the heating back temperature rise of heater and becomes hot-air, and under air supply fan's effect, hot-air flows into in the circulation wind channel again and finally flows into the incubator from the supply-air outlet in, so circulation, the temperature in the incubator can reach predetermined temperature rapidly. When the temperature of the incubator tends to decrease, the air enters the incubator after passing through the heating circulation process, and the temperature of the incubator can be kept constant. The whole hot air circulating system is simple and ingenious in design, the temperature in the incubator can be rapidly heated through the matching action of the exhaust fan, the heater and the air supply fan, the temperature in the incubator is controlled to be constant with high precision, and the accuracy of the identification and analysis result of the bacteria liquid in the incubator is guaranteed.
According to some embodiments of the utility model, a temperature controller is disposed between the induced draft fan and the heater.
According to some embodiments of the present invention, the heater includes a heating pipe vertically disposed at an air outlet of the id fan, and a plurality of heat conductive fins circumferentially disposed on an outer wall of the heating pipe.
According to some embodiments of the utility model, an air flow channel for air circulation is formed between two adjacent heat conducting ribs, and the air flow channel is communicated with the circulating air duct.
According to some embodiments of the utility model, the plurality of heat conducting ribs circumferentially form an annular body in which a vertical projection of the air outlet of the id fan is located.
According to some embodiments of the utility model, the air inlet of the exhaust fan is perpendicular to the air inlet, and the air outlet of the air supply fan faces the air supply outlet.
According to some embodiments of the utility model, a sealing cover is detachably arranged on the outer wall of the incubator, the circulating air duct is enclosed by the sealing cover and the outer wall of the incubator in a sealing manner, and the air draft fan, the heater and the air supply fan are all arranged in the circulating air duct.
According to some embodiments of the utility model, the exhaust fan and the supply fan are both axial fans.
A drug sensitivity analyzer according to an embodiment of the second aspect of the utility model comprises a hot air circulation system according to an embodiment of the first aspect of the utility model.
The drug sensitivity analyzer according to the embodiment of the second aspect of the utility model has at least the following beneficial effects:
the drug sensitivity analyzer has the same technical effects as the hot air circulating system because of the hot air circulating system.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a first exploded view of the present invention;
FIG. 3 is a second exploded view of the embodiment of the present invention;
FIG. 4 is a schematic view of a structure of the updraft fan and the heater according to an embodiment of the utility model.
Wherein: the incubator 100, the suction opening 110, the supply opening 120, the induced draft fan 200, the heater 300, the heating pipe 310, the heat conduction fin 320, the sealing cover 400, the supply fan 500, the temperature controller 600, and the air flow passage 700.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1, 2 and 3, the present invention discloses a hot air circulation system, which includes an incubator 100, an induced draft fan 200, a heater 300, an air supply fan 500 and a circulation duct.
Wherein, the upper portion and the lower part of incubator 100 have seted up suction opening 110 and supply-air outlet 120 respectively, the air intake and the suction opening 110 intercommunication of updraft ventilator 200, heater 300 sets up in the air outlet department of updraft ventilator 200, obviously, heater 300 is used for heating the air that updraft ventilator 200 blew out, the both ends in circulation wind channel communicate the output of heater 300 and the air intake of air supply fan 500 respectively, the air outlet and the supply-air outlet 120 intercommunication of air supply fan 500, that is air supply fan 500 sends hot-air into incubator 100. In addition, the induced draft fan 200, the heater 300, the blowing fan 500, and the circulation duct are all disposed on the incubator 100, and the induced draft fan 200 and the blowing fan 500 are all axial flow fans.
It is easy to understand that, when the hot air circulation system works, the exhaust fan 200 rotates, the air in the incubator 100 flows through the heater 300 from the exhaust opening 110 under the suction action of the exhaust fan 200, the temperature of the air heated by the heater 300 rises to become hot air, and the hot air flows into the circulation air duct again and finally flows into the incubator 100 from the air supply opening 120 under the action of the air supply fan 500, so that the temperature in the incubator 100 can reach the predetermined temperature quickly.
When the temperature of the incubator 100 tends to decrease, the air enters the incubator 100 after passing through the above-mentioned heating cycle process, so as to keep the temperature of the incubator 100 constant.
The whole hot air circulation system is simple and ingenious in design, the temperature in the incubator 100 can be rapidly heated through the matching action of the exhaust fan 200, the heater 300 and the air supply fan 500, the temperature in the incubator is controlled to be constant with high precision, and the accuracy of the identification and analysis result of bacteria liquid in the incubator is guaranteed.
In some embodiments of the present invention, referring to fig. 3 and 4, in order to control the temperature in the incubator more precisely in the whole hot air circulation system, a temperature controller 600 is disposed between the id fan 200 and the heater 300. It should be understood that the temperature controller 600 is a temperature sensor, the temperature controller 600 can sense the temperature of the hot air before entering the circulating air duct in real time, when the temperature is lower than the target temperature, the temperature controller 600 feeds back an electric signal to the background controller, and the controller can send out an electric signal to enable the heater 300 to increase the heating temperature, so that the air is rapidly heated to reach the target temperature; similarly, when the temperature of the air before entering the circulation air duct is higher than the target temperature, the operation of the ventilation fan 200, the heater 300, and the blowing fan 500 is stopped, so that the temperature in the incubator is lowered to the target temperature. Obviously, the temperature controller 600 is configured to precisely control the temperature of the incubator.
In some embodiments of the present invention, referring again to fig. 4, the heater 300 includes a heating pipe 310 and a plurality of heat conductive fins 320 disposed on an outer wall of the heating pipe 310 along a circumferential direction, wherein the heating pipe 310 is vertically disposed at an air outlet of the id fan 200. And an air flow channel 700 for air circulation is formed between two adjacent heat conducting ribs 320, and the air flow channel 700 is communicated with the circulating air duct.
It should be understood that, when the heating pipe 310 is heated and opened, the heating pipe 310 and the plurality of heat conducting fins 320 both have a higher temperature, when air flows through the heat conducting fins 320 and the heat conducting fins 320 contact, the air can be heated rapidly, the contact area between the whole heater and the air is effectively increased by the arrangement of the heat conducting fins 320, the heating efficiency of the air is accelerated, the temperature in the incubator can rapidly reach the target temperature, and the air flow channel 700 formed between two adjacent heat conducting fins 320 enables the hot air to smoothly enter the circulating air duct, so that the hot air is extracted by the air supply fan 500 and sent into the incubator.
In addition, in the embodiment, referring to fig. 4 again, in order to enable all the air coming out from the air outlet of the id fan 200 to flow through the heat conducting fins 320 and be heated, so as to improve the uniformity and uniformity of the air temperature rise, the plurality of heat conducting fins 320 form an annular body along the circumferential direction, and the vertical projection of the air outlet of the id fan 200 is located in the annular body, so that the air can be prevented from entering the circulating air duct without being heated.
In some embodiments of the present invention, referring to fig. 2 and 3, a sealing cover 400 is detachably disposed on an outer wall of the incubator 100, a circulating air duct is enclosed by the sealing cover 400 and the outer wall of the incubator 100, and the induced draft fan 200, the heater 300, and the blower fan 500 are all disposed in the circulating air duct. The arrangement of the sealing cover 400 can effectively seal the circulating air duct, avoid the leakage of hot air in the circulating air duct, and simultaneously enable the whole hot air circulating system to be completely in the sealed cavity to prevent air and heat from leaking.
In some embodiments of the present invention, referring to fig. 2 and 3, the air inlet of the id fan 200 is perpendicular to the air inlet 110, and the blower fan 500 faces the blower outlet 120. Under the action of the exhaust fan 200, the air is vertically diverted through the air suction opening 110 and then sucked by the air supply fan 500, so that the air flow rate is not too large and is not completely heated in the process of flowing through the heater, and the air can be effectively diverted and reduced in speed through the design that the air inlet of the exhaust fan 200 is vertical to the air suction opening 110, so that the air can be more uniformly and completely heated and heated at the heater. In addition, thanks to the fact that the air outlet of the air supply fan 500 faces the air supply outlet 120, the air supply fan 500 can quickly and smoothly supply hot air into the incubator 100, so that the temperature of the incubator can quickly reach the target temperature.
In addition, in some embodiments of the present invention, a thermal insulation layer is further disposed on the inner circumferential wall of the incubator 100, and the thermal insulation layer may be made of thermal insulation cotton or other thermal insulation structures, so as to prevent heat from being dissipated, and further ensure that the temperature inside the incubator is constant.
In addition, the utility model also discloses a drug sensitivity analyzer which comprises the hot air circulating system, namely the hot air circulating system is arranged on the drug sensitivity analyzer so as to maintain the constant temperature of the incubator with high precision.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (9)
1. Heated air circulation system, its characterized in that includes:
the upper part and the lower part of the incubator are respectively provided with an air suction opening and an air supply opening;
the air inlet of the air extracting fan is communicated with the air extracting opening;
the heater is arranged at the air outlet of the exhaust fan;
the air outlet of the air supply fan is communicated with the air supply outlet;
the two ends of the circulating air duct are respectively communicated with the output end of the heater and the air inlet of the air supply fan;
wherein, the induced draft fan, the heater, the blower fan and the circulating air duct are all arranged on the incubator.
2. The hot air circulation system according to claim 1, wherein a temperature controller is provided between the induced draft fan and the heater.
3. The hot air circulation system according to claim 2, wherein the heater comprises a heating pipe and a plurality of heat conducting fins circumferentially arranged on an outer wall of the heating pipe, and the heating pipe is vertically arranged at an air outlet of the exhaust fan.
4. The hot air circulation system according to claim 3, wherein an air flow passage for air circulation is formed between two adjacent heat conductive fins, and the air flow passage is communicated with the circulation duct.
5. The hot air circulation system according to claim 3, wherein the plurality of heat conducting fins circumferentially form an annular body in which a vertical projection of the outlet of the id fan is located.
6. The hot air circulation system according to claim 1, wherein the air inlet of the suction fan is perpendicular to the air suction opening, and the air outlet of the blowing fan faces the blowing opening.
7. The hot air circulation system according to any one of claims 1 to 6, wherein a sealing cover is detachably disposed on an outer wall of the incubator, the circulation air duct is enclosed by the sealing cover and the outer wall of the incubator, and the exhaust fan, the heater and the blowing fan are all disposed in the circulation air duct.
8. The hot air circulation system according to any one of claims 1 to 6, wherein the suction fan and the blowing fan are axial flow fans.
9. A drug sensitivity analyzer comprising a hot air circulation system as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120563915.9U CN216513869U (en) | 2021-03-18 | 2021-03-18 | Hot air circulating system and drug sensitivity analyzer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120563915.9U CN216513869U (en) | 2021-03-18 | 2021-03-18 | Hot air circulating system and drug sensitivity analyzer |
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| CN216513869U true CN216513869U (en) | 2022-05-13 |
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| CN202120563915.9U Active CN216513869U (en) | 2021-03-18 | 2021-03-18 | Hot air circulating system and drug sensitivity analyzer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117804056A (en) * | 2024-02-29 | 2024-04-02 | 成都千麦医学检验所有限公司 | Temperature-changing incubator for enzyme-linked immunosorbent assay |
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2021
- 2021-03-18 CN CN202120563915.9U patent/CN216513869U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117804056A (en) * | 2024-02-29 | 2024-04-02 | 成都千麦医学检验所有限公司 | Temperature-changing incubator for enzyme-linked immunosorbent assay |
| CN117804056B (en) * | 2024-02-29 | 2024-05-14 | 成都千麦医学检验所有限公司 | Temperature-changing incubator for enzyme-linked immunosorbent assay |
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