CN215179841U - Temperature difference type non-condensable gas detection device - Google Patents
Temperature difference type non-condensable gas detection device Download PDFInfo
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- CN215179841U CN215179841U CN202121080067.2U CN202121080067U CN215179841U CN 215179841 U CN215179841 U CN 215179841U CN 202121080067 U CN202121080067 U CN 202121080067U CN 215179841 U CN215179841 U CN 215179841U
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Abstract
The utility model discloses a temperature difference type non-condensable gas detection device, which comprises an air detection pipeline, a steam temperature detection device and an air temperature detection device; the steam temperature detection device can detect the temperature of the steam discharged from the sterilization cavity; the air detection pipeline comprises an inclined section which forms an included angle with the horizontal plane, and the temperature detection device is positioned at the dead zone position at the tail end of the inclined section and used for detecting the temperature of air; the air detection pipeline is always communicated with the sterilization cavity, if non-condensable gas exists, the non-condensable gas is collected at the dead zone of the air detection pipeline, the steam temperature detection device and the air temperature detection device simultaneously detect the temperature, the content of the non-condensable gas is judged according to the difference value of the steam temperature detection device and the air temperature detection device, and the higher the content of the non-condensable gas is, the larger the difference value between the two temperature values is; the two temperature detection devices can synchronously work and detect, the content of the non-condensable gas is indirectly obtained by judging according to the temperature difference, and real-time detection is realized.
Description
Technical Field
The utility model relates to a steam sterilization technical field further relates to a temperature difference type noncondensable gas detection device.
Background
When liquid is evaporated in a limited closed space, liquid molecules enter the upper space through the liquid level to become vapor molecules. Since the vapor molecules are in turbulent thermal motion, they collide with each other and with the container wall and liquid surface, and when they collide with the liquid surface, some molecules are attracted by the liquid molecules and return to the liquid again to become liquid molecules. At the beginning of evaporation, the number of molecules entering the space is greater than the number of molecules in the returning liquid, and as evaporation continues, the density of vapor molecules in the space increases and thus the number of molecules in the returning liquid also increases. When the number of molecules entering the space per unit time is equal to the number of molecules in the returning liquid, the evaporation and condensation are in a dynamic equilibrium state, and although the evaporation and condensation are still in progress, the density of vapor molecules in the space is not increased any more, and this state is called a saturated state. The liquid in a saturated state is called saturated liquid, and the corresponding vapor is saturated vapor. The temperature and the pressure of the saturated steam are in one-to-one correspondence, and only one independent variable exists between the temperature and the pressure. Saturated steam is easily condensed and releases a large amount of latent heat, which can be used for sterilization.
The key factor of the steam sterilizer for controlling the sterilization quality is to control the steam quality in the sterilization process. An important indicator of the quality of the steam is the content of non-condensable gases (air) in the steam as impurities. In order to ensure the sterilization quality, the content of air needs to be strictly controlled. Methods for controlling the effectiveness of air removal and the air content of steam in sterilizers generally include: negative pressure leak detection test of a sterilizer, steam quality sampling test and the like.
The above negative pressure leak detection test for the sterilizer is a separate test outside the sterilization process, and cannot be performed in real time along with the sterilization process, so that the reliability of each sterilization cycle cannot be ensured. If the leak detection test of a certain time is unqualified, the risk that all sterilization cycles qualified by the leak detection test of the last time have unqualified sterilization is traced. The steam quality sampling detection generally needs manual operation, usually needs special sampling equipment and steam quality detection equipment, and is difficult to realize frequent real-time detection.
For those skilled in the art, how to detect the content of the non-condensable gas in real time is a technical problem to be solved at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a temperature difference type noncondensable gas detection device carries out real-time detection to noncondensable gas's content through the mode of acquireing the difference in temperature, and concrete scheme is as follows:
a temperature difference type non-condensable gas detection device comprises an air detection pipeline, a steam temperature detection device and an air temperature detection device;
the air detection pipeline is communicated with the sterilization cavity; the steam temperature detection device can detect the temperature of the steam discharged from the sterilization cavity;
the air detection pipeline comprises an inclined section with an included angle with the horizontal plane, and the temperature detection device is positioned at the dead zone position at the tail end of the inclined section and used for detecting the temperature of air;
and judging the content of the non-condensable gas according to the difference value of the steam temperature detection device and the air temperature detection device.
Optionally, the inclined section forms an angle of 90 degrees with the horizontal plane.
Optionally, the air temperature detection device is movably mounted on the air detection pipeline, and the length of the air temperature detection device extending into the air detection pipeline can be adjusted.
Optionally, the air detection pipeline and the exhaust pipeline are connected to an exhaust pipeline of the sterilization cavity together, and the steam temperature detection device is installed on the exhaust pipeline.
Optionally, a bypass pipe is arranged on a side wall of the exhaust pipeline, and the steam temperature detection device is inserted into the bypass pipe.
Optionally, the highest point of the air detection line is higher than the lowest point of the inner cavity of the sterilization cavity.
The utility model provides a temperature difference type non-condensable gas detection device, which comprises an air detection pipeline, a steam temperature detection device and an air temperature detection device; the steam temperature detection device can detect the temperature of the steam discharged from the sterilization cavity; the air detection pipeline comprises an inclined section which forms an included angle with the horizontal plane, and the temperature detection device is positioned at the dead zone position at the tail end of the inclined section and used for detecting the temperature of air; the air detection pipeline is always communicated with the sterilization cavity, if non-condensable gas exists, the non-condensable gas is collected at the dead zone of the air detection pipeline, the steam temperature detection device and the air temperature detection device simultaneously detect the temperature, the content of the non-condensable gas is judged according to the difference value of the steam temperature detection device and the air temperature detection device, and the higher the content of the non-condensable gas is, the larger the difference value between the two temperature values is; the two temperature detection devices can synchronously work and detect, the content of the non-condensable gas is indirectly obtained by judging according to the temperature difference, and real-time detection is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a specific embodiment of the temperature difference type non-condensable gas detecting device provided by the present invention.
The figure includes:
an air detection line 1, a steam temperature detection device 2, an air temperature detection device 3, a discharge line 4, an exhaust line 5, and a bypass pipe 51.
Detailed Description
The core of the utility model lies in providing a temperature difference type noncondensable gas detection device, carries out real-time detection to noncondensable gas's content through the mode that acquires the difference in temperature.
In order to make those skilled in the art better understand the technical solution of the present invention, the temperature difference type non-condensable gas detecting device of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic view of a specific embodiment of a temperature-difference-type non-condensable gas detecting device provided by the present invention, wherein a shows a sterilization chamber; the utility model provides a temperature difference type non-condensable gas detection device, which comprises an air detection pipeline 1, a steam temperature detection device 2 and an air temperature detection device 3; the air detection pipeline 1 is communicated with the sterilization cavity, and gas in the sterilization cavity can enter the air detection pipeline 1.
The steam temperature detection device 2 can detect the temperature of the steam discharged from the sterilization cavity, the specific setting position of the steam temperature detection device 2 can stretch into the inside of the sterilization cavity or a pipeline close to a gas outlet of the sterilization cavity, and the temperature of the detection position is the steam temperature.
The air detection pipeline 1 comprises an inclined section which forms an included angle with the horizontal plane, the dead zone position is the highest position of the tail end of the air detection pipeline 1, the dead zone position is the farthest position of the air detection pipeline 1 from the sterilization cavity, and due to the fact that the inclined section inclines upwards, if non-condensable gas exists in the gas, the non-condensable gas is gathered at the dead zone position; the temperature detecting means 3 is located at the dead zone position at the end of the inclined section for detecting the temperature of the air.
The steam temperature detection device 2 and the air temperature detection device 3 respectively and independently perform temperature detection, and the content of the non-condensable gas is judged according to the difference value of the steam temperature detection device 2 and the air temperature detection device 3.
When the gas contains more non-condensable gas, the air temperature detection device 3 detects the air temperature, and the temperature difference between the air temperature and the steam temperature detected by the steam temperature detection device 2 is larger; when the non-condensable gas contained in the gas is less, the difference between the detection value of the air temperature detection device 3 and the detection value of the steam temperature detection device 2 is smaller, whether the air content in the steam meets the requirement or not can be judged through temperature difference judgment, if the temperature difference exceeds the set range, the sterilized steam is considered to be unqualified, and the sterilized steam is sterilized again and detected after being adjusted until the temperature difference meets the requirement.
The utility model discloses a temperature difference type noncondensable gas detection device utilizes exhaust steam in the sterilization cavity, judges according to the difference in temperature, can realize real-time detection.
On the basis of the above scheme, the included angle between the inclined section of the air detection pipeline 1 and the horizontal plane is 90 degrees, namely the structure shown in fig. 1; however, the present invention is not limited to be perpendicular to the horizontal plane, and the inclination angle between the horizontal plane and the utility model is not less than 45 degrees. The air detection pipeline 1 is communicated with the sterilization cavity all the time, other structures are not needed to be arranged, and the structure is simple.
Preferably, the air temperature detection device 3 of the present invention is movably mounted on the air detection pipeline 1, and can adjust the length extending into the air detection pipeline 1; the air temperature detection device 3 and the air detection pipeline 1 are always kept airtight, and when the air temperature detection device 3 changes the position, the position of a probe on the air temperature detection device can be changed; the closer the probe is to the tail end of the air detection pipeline 1, the closer the detected temperature is to the air temperature, and therefore the detection sensitivity is higher; the longer the air temperature detection means 3 extends into the air detection duct 1, the closer the temperature it detects to the steam temperature, and thus the lower the third degree of detection. When the length is set, the corresponding extending length needs to be designed according to the specific size, so that the detection accuracy is ensured, and meanwhile, the sensitivity is considered.
The air detection pipeline 1 and the discharge pipeline 4 are connected with the exhaust pipeline 5 of the sterilization cavity together, and the three are connected through a three-way joint. The steam temperature detection device 2 is installed on the exhaust pipeline 5, and the gas is directly detected by the steam temperature detection device 2 after being exhausted from the sterilization cavity.
In the sterilization process, need let in steam on one side, discharge the steam after using on one side, discharge from exhaust pipe 5 the steam after using, the utility model discloses a temperature difference type noncondensable gas detection device detects noncondensable gas content in sterilization process in real time.
Specifically, a bypass pipe 51 is provided on a side wall of the exhaust duct 5, the steam temperature detection device 2 is inserted into the bypass pipe 51, and a probe of the steam temperature detection device 2 extends into an inner cavity of the exhaust duct 5.
The utility model discloses an empty gas detection surveys pipeline 1's highest point is higher than the lower of the inner chamber of sterilization cavity to make the blind spot position can better gather noncondensable gas.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A temperature difference type non-condensable gas detection device is characterized by comprising an air detection pipeline (1), a steam temperature detection device (2) and an air temperature detection device (3);
the air detection pipeline (1) is communicated with the sterilization cavity; the steam temperature detection device (2) can detect the temperature of the steam discharged from the sterilization cavity;
the air detection pipeline (1) comprises an inclined section with an included angle with the horizontal plane, and the temperature detection device (3) is positioned at the dead zone position at the tail end of the inclined section and used for detecting the temperature of air;
and judging the content of the non-condensable gas according to the difference value of the steam temperature detection device (2) and the air temperature detection device (3).
2. The temperature-differential-type non-condensable gas detecting device according to claim 1, wherein the inclined section forms an angle of 90 degrees with a horizontal plane.
3. The temperature-differential type non-condensable gas detecting device according to claim 1, wherein the air temperature detecting device (3) is movably installed on the air detecting pipeline (1) and can adjust the length of the air temperature detecting device extending into the air detecting pipeline (1).
4. The temperature-differential non-condensable gas detecting device according to claim 1, wherein the air detecting line (1) and the exhaust line (4) are connected together to an exhaust line (5) of the sterilization chamber, and the steam temperature detecting device (2) is mounted on the exhaust line (5).
5. The temperature-differential type non-condensable gas detecting apparatus according to claim 4, wherein a bypass pipe (51) is provided on a side wall of the exhaust line (5), and the steam temperature detecting apparatus (2) is inserted into the bypass pipe (51).
6. The temperature-differential type non-condensable gas detecting device according to claim 1, wherein the highest point of the air detecting pipeline (1) is higher than the lowest point of the inner cavity of the sterilizing cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121080067.2U CN215179841U (en) | 2021-05-19 | 2021-05-19 | Temperature difference type non-condensable gas detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121080067.2U CN215179841U (en) | 2021-05-19 | 2021-05-19 | Temperature difference type non-condensable gas detection device |
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| Publication Number | Publication Date |
|---|---|
| CN215179841U true CN215179841U (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121080067.2U Active CN215179841U (en) | 2021-05-19 | 2021-05-19 | Temperature difference type non-condensable gas detection device |
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| CN (1) | CN215179841U (en) |
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- 2021-05-19 CN CN202121080067.2U patent/CN215179841U/en active Active
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