CN113068547A - Negative pressure cabin humidifying device with isolated sealing function - Google Patents
Negative pressure cabin humidifying device with isolated sealing function Download PDFInfo
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- CN113068547A CN113068547A CN202110442460.XA CN202110442460A CN113068547A CN 113068547 A CN113068547 A CN 113068547A CN 202110442460 A CN202110442460 A CN 202110442460A CN 113068547 A CN113068547 A CN 113068547A
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- water
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- heating
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- electric heater
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Abstract
The invention discloses a negative pressure cabin humidifying device with an isolation sealing function, which comprises a heating tank and a water supplementing tank, wherein the left side of the water supplementing tank is connected with the right side of the heating tank, the top of the water supplementing tank is communicated with a water inlet pipeline, and the surface of the water inlet pipeline is provided with a water inlet electromagnetic valve. Negative-pressure chamber humidification device with isolated sealed effect, when the environmental simulation cabin is at simulation normal pressure environment, the under-deck does not have pressure differential outside, negative-pressure chamber humidification device still can normally work, carry out the humidification to the under-deck, the humidification jar forms for two jar combinations, one of them jar is the heating jar, another jar is the moisturizing jar, gather water level information in the moisturizing jar, can guarantee that the water level does not receive the influence that water vaporization caused the water level fluctuation, realize more accurate control, adopt a pressure balance union coupling between two jars simultaneously, guarantee the pressure balance of two jars, the water level is the same, and can realize sealed with external atmospheric isolation, guarantee that the humidification effect is stable.
Description
Technical Field
The invention relates to the technical field of negative pressure cabin humidifying equipment, in particular to a negative pressure cabin humidifying device with an isolation sealing function.
Background
At present many environmental load simulation cabin, the simulation of environmental parameter such as humiture, atmospheric pressure, oxygen concentration can be realized to this type of simulation cabin, can carry out high altitude animal and plant survival test, consequently under high altitude environment other in-cabin lower, compare the under-deck with the atmospheric pressure of ordinary altitude and be the negative pressure environment. Need control the under-deck humidity under negative pressure environment, when needs humidification, if adopt ordinary humidifier to carry out the humidification, the operating condition of humidifier can be influenced to the negative pressure, causes the outside air and inhales the under-deck by the humidification jar always, not only can lead to the cabin internal pressure unstability, also can cause the consequence that the humidification water can not be boiled and can not humidify because of the outside air temperature is low. Therefore, special design and development of the humidification system are required for such applications.
The existing humidifier has the following problems:
(1) the common electrode type humidifying tank is a humidifying tank used under normal pressure, and the shell is made of ABS plastic and cannot bear pressure.
(2) When the humidifier works under negative pressure, the humidifier sucks in external atmosphere, so that the humidifying work is unstable.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a negative pressure cabin humidifying device with an isolation sealing function, which solves the problems that the working state of a humidifier is influenced by negative pressure when a common humidifier is used for humidifying, so that outside air is sucked into a cabin from a humidifying tank all the time, the pressure in the cabin is unstable, and humidifying water cannot be heated and cannot be humidified due to low temperature of the outside air.
In order to achieve the purpose, the invention is realized by the following technical scheme: a negative pressure cabin humidifying device with an isolation sealing function comprises a heating tank and a water supplementing tank, wherein the left side of the water supplementing tank is connected with the right side of the heating tank, the top of the water supplementing tank is communicated with a water inlet pipeline, a water inlet electromagnetic valve is arranged on the surface of the water inlet pipeline, the bottom of the water supplementing tank is communicated with a communicating pipeline, one end of the communicating pipeline is communicated with an inner cavity of the heating tank, a water drainage manual ball valve and a water supplementing manual ball valve are respectively arranged on the surface of the communicating pipeline from left to right, an electric heater is fixedly connected to the left side of the heating tank, a heat conducting rod is fixedly connected to the right side of the electric heater, the right end of the heat conducting rod penetrates through the left side of the heating tank and extends to the inner cavity of the heating tank, a temperature sensor is fixedly connected to the inner cavity of the heating tank, a steam exhaust pipeline and a steam, the surface of steam exhaust pipeline is provided with the steam exhaust solenoid valve, through pressure balance pipe intercommunication between inlet channel and the admission pipeline, the inner chamber of heating jar is fixedly connected with high liquid level switch, low liquid level switch and heating protection liquid level switch respectively.
As a further scheme of the invention: the top of the heating tank is communicated with a safety valve.
As a further scheme of the invention: the inner chamber cladding of heating jar has the heat preservation, the bottom fixedly connected with installation foot of heating jar.
As a further scheme of the invention: the right side of the water replenishing tank is fixedly connected with a liquid level viewing mirror.
As a further scheme of the invention: the heating tank and the water replenishing tank are fixedly connected or in split connection.
As a further scheme of the invention: the electric heater is installed by adopting a flange.
As a further scheme of the invention: the use method of the negative pressure cabin humidifying device comprises the following steps:
when the water-saving water dispenser is not used, closing each electromagnetic valve, closing a drainage manual ball valve, opening a water supplementing manual ball valve, and enabling the water level to be between a high liquid level switch and a low liquid level switch;
and step two, when the environment simulation cabin is humidified under the negative pressure working condition, the steam inlet electromagnetic valve is opened, the electric heater starts to work, after the water temperature in the heating tank is heated to the boiling point, the steam starts to be supplemented into the negative pressure cabin, the water level in the water supplementing tank is reduced to the low liquid level switch position along with the water level in the heating tank, the water inlet electromagnetic valve is opened to begin water supplement, and when the water level is increased to the high liquid level switch position, the water inlet electromagnetic valve is closed to stop water supplement.
Step three, in the work of the electric heater, the pressure in the heating tank and the water replenishing tank is balanced by the pressure balance pipe, and the liquid levels of the heating tank and the water replenishing tank are equal in height;
and step four, when the humidity in the negative pressure cabin reaches a humidity target value, reducing the power of the electric heater, closing the electric heater when the humidity exceeds a target allowable value, simultaneously opening the steam exhaust electromagnetic valve, closing the steam inlet electromagnetic valve, exhausting the steam stored in the tank to the atmospheric environment, and opening the steam exhaust electromagnetic valve and the steam inlet electromagnetic valve after the water in the heating tank stops boiling.
And step five, when the steam exhaust electromagnetic valve and the steam inlet electromagnetic valve are damaged, the pressure in the tank rises to exceed a protection value, the safety valve is opened to release the pressure, the temperature of the electric heater is acquired through the temperature sensor, when the temperature exceeds a set value, the electric heater stops heating, when the low liquid level switch or the water inlet electromagnetic valve is damaged, the liquid level is reduced to be below the position of the heating protection liquid level switch, the electric heater stops working, and when the electric heater does not work, the manual drainage ball valve is opened to drain the water in the heating tank and the water replenishing tank.
Advantageous effects
The invention provides a negative pressure cabin humidifying device with an isolation sealing function. Compared with the prior art, the method has the following beneficial effects:
1. a negative pressure cabin humidifying device with an isolation sealing function is characterized in that a water inlet pipeline is communicated with the top of a water supplementing tank, a water inlet electromagnetic valve is arranged on the surface of the water inlet pipeline, a communicating pipeline is communicated with the bottom of the water supplementing tank, one end of the communicating pipeline is communicated with an inner cavity of a heating tank, a water drainage manual ball valve and a water supplementing manual ball valve are respectively arranged on the surface of the communicating pipeline from left to right, an electric heater is fixedly connected to the left side of the heating tank, a heat conducting rod is fixedly connected to the right side of the electric heater, the right end of the heat conducting rod penetrates through the left side of the heating tank and extends to the inner cavity of the heating tank, a temperature sensor is fixedly connected to the inner cavity of the heating tank, an exhaust pipeline and an intake pipeline are respectively communicated with the top of the heating tank, an intake electromagnetic valve is arranged on the surface of the intake pipeline, when the environmental simulation cabin is in simulation ordinary pressure environment, the off-board does not have pressure differential, negative pressure cabin humidification device still can normally work, carry out the humidification to the under-deck, the humidification jar forms for two jar combinations, one of them jar is the heating jar, another jar is the moisturizing jar, gather water level information in the moisturizing jar, can guarantee that the water level does not receive the influence that water vaporization caused the water level fluctuation, realize more accurate control, adopt a pressure balance union coupling between two jars simultaneously, guarantee the pressure balance of two jars, the water level is the same, and can realize sealed with external atmospheric isolation, guarantee that the humidification effect is stable.
2. The utility model provides a negative pressure cabin humidification device with isolated sealed effect, inner chamber through heating jar respectively fixedly connected with high liquid level switch, low liquid level switch and heating protection liquid level switch, on the basis of realizing the humidification function, the security design of various operating mode has fully been considered, it is low to lead to the water level at the temperature overtemperature, water supply trouble, admission valve and discharge valve trouble lead to the high scheduling problem all to be equipped with corresponding safe corresponding measure, the security of guaranteeing to use.
Drawings
FIG. 1 is a structural cross-sectional view of the present invention;
fig. 2 is a right side view of the structure of the present invention.
In the figure: 1. a heating tank; 2. a water replenishing tank; 3. a water inlet electromagnetic valve; 4. a manual ball valve for draining water; 5. a water-replenishing manual ball valve; 6. an electric heater; 7. a steam exhaust electromagnetic valve; 8. a temperature sensor; 9. an air inlet electromagnetic valve; 10. a pressure balance tube; 11. a high liquid level switch; 12. a low level switch; 13. a heating protection liquid level switch; 14. a safety valve; 15. a heat-insulating layer; 16. a liquid level sight glass.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a negative pressure cabin humidifying device with an isolation sealing function comprises a heating tank 1 and a water supplementing tank 2, the left side of the water supplementing tank 2 is connected with the right side of the heating tank 1, the top of the water supplementing tank 2 is communicated with a water inlet pipeline, a water inlet electromagnetic valve 3 is arranged on the surface of the water inlet pipeline, the bottom of the water supplementing tank 2 is communicated with a communicated pipeline, one end of the communicated pipeline is communicated with an inner cavity of the heating tank 1, the surface of the communicated pipeline is respectively provided with a drainage manual ball valve 4 and a water supplementing manual ball valve 5 from left to right, the left side of the heating tank 1 is fixedly connected with an electric heater 6, the right side of the electric heater 6 is fixedly connected with a heat conducting rod, the right end of the heat conducting rod penetrates through the left side of the heating tank 1 and extends to the inner cavity of the heating tank 1, the inner cavity of the heating tank 1 is fixedly connected with a temperature sensor 8, the, the surface of the steam inlet pipeline is provided with a steam inlet electromagnetic valve 9, when the environment simulation cabin simulates a normal pressure environment, no pressure difference exists outside the cabin, a negative pressure cabin humidifying device can still work normally, the interior of the cabin is humidified, the humidifying tank is formed by combining two tanks, one tank is a heating tank 1, the other tank is a water supplementing tank 2, water level information is collected in the water supplementing tank 2, the water level can be guaranteed not to be influenced by water level fluctuation caused by water vaporization, more accurate control is achieved, meanwhile, a pressure balance pipe 10 is connected between the two tanks, the pressure balance of the two tanks is guaranteed, the water levels are the same, isolation and sealing with the outside atmosphere can be achieved, the humidifying effect is guaranteed to be stable, the surface of the steam outlet pipeline is provided with a steam outlet electromagnetic valve 7, the water inlet pipeline and the steam inlet pipeline are communicated through the pressure balance pipe 10, the inner cavity of the heating tank 1 is respectively and fixedly connected with, The heating device comprises a low liquid level switch 12 and a heating protection liquid level switch 13, wherein the top of a heating tank 1 is communicated with a safety valve 14, the inner cavity of the heating tank 1 is coated with a heat insulation layer 15, the bottom of the heating tank 1 is fixedly connected with an installation pin, the right side of a water supplementing tank 2 is fixedly connected with a liquid level viewing mirror 16, the heating tank 1 and the water supplementing tank 2 are fixedly connected or in split connection, and an electric heater 6 is installed by adopting a flange;
when the water-saving water dispenser is not used, closing each electromagnetic valve, closing the drainage manual ball valve 4, opening the water supplementing manual ball valve 5, and enabling the water level to be between the high liquid level switch 11 and the low liquid level switch 12;
and step two, when the environment simulation cabin is humidified under a negative pressure working condition, the steam inlet electromagnetic valve 9 is opened, the electric heater 6 starts to work, after the water temperature in the heating tank 1 is heated to the boiling point, the steam starts to be supplemented into the negative pressure cabin, the water level in the water supplementing tank 2 is reduced to the position of the low liquid level switch 12 along with the water level in the heating tank 1, the water inlet electromagnetic valve 3 is opened to supplement water, and when the water level is increased to the position of the high liquid level switch 11, the water inlet electromagnetic valve 3 is closed to stop supplementing water.
Step three, in the working process of the electric heater 6, the pressure balance pipe 10 balances the pressure in the heating tank 1 and the water replenishing tank 2, and the liquid levels of the heating tank 1 and the water replenishing tank 2 are equal in height;
and step four, when the humidity in the negative pressure cabin reaches a humidity target value, reducing the power of the electric heater 6, closing the electric heater 6 when the humidity exceeds a target allowable value, simultaneously opening the steam exhaust electromagnetic valve 7, closing the steam inlet electromagnetic valve 9, exhausting the steam stored in the tank to the atmospheric environment, and after the water in the heating tank stops boiling, opening the steam exhaust electromagnetic valve 7 and the steam inlet electromagnetic valve 9.
And step five, when the steam exhaust electromagnetic valve 7 and the steam inlet electromagnetic valve 9 are damaged, the pressure in the tank rises to exceed a protection value, the safety valve 14 is opened to release the pressure, the temperature of the electric heater 6 is collected through the temperature sensor 8, when the temperature exceeds a set value, the electric heater 6 stops heating, when the low liquid level switch 12 or the water inlet electromagnetic valve 3 is damaged, the liquid level is reduced to be below the position of the heating protection liquid level switch 13, the electric heater 6 stops working, and when the electric heater does not work, the manual drainage ball valve 4 is opened to drain the water in the heating tank 1 and the water replenishing tank 2.
When the water-saving water dispenser is used, when the water-saving water dispenser is not used, all the electromagnetic valves are closed, the manual drainage ball valve 4 is closed, the manual water supplementing ball valve 5 is opened, and the water level is between the high liquid level switch 11 and the low liquid level switch 12; when the environment simulation cabin is humidified under a negative pressure working condition, the steam inlet electromagnetic valve 9 is opened, the electric heater 6 starts to work, after the water temperature in the heating tank 1 is heated to the boiling point, the water vapor starts to be supplemented into the negative pressure cabin, the water level in the water supplementing tank 2 is reduced to the position of the low liquid level switch 12 along with the water level in the heating tank 1, the water inlet electromagnetic valve 3 is opened, water supplementing is started, when the water level is increased to the position of the high liquid level switch 11, the water inlet electromagnetic valve 3 is closed, water supplementing is stopped, the pressure in the heating tank 1 and the water supplementing tank 2 is balanced by the pressure balance pipe 10 during the work of the electric heater 6, and the liquid levels of the heating tank 1; when the humidity in the negative pressure cabin reaches a humidity target value, the power of the electric heater 6 is reduced, when the humidity exceeds a target allowable value, the electric heater 6 is closed, meanwhile, the steam exhaust electromagnetic valve 7 is opened, the steam inlet electromagnetic valve 9 is closed, the steam stored in the tank is exhausted to the atmosphere, after the water in the heating tank stops boiling, the steam exhaust electromagnetic valve 7 and the steam inlet electromagnetic valve 9 are opened, when the steam exhaust electromagnetic valve 7 and the steam inlet electromagnetic valve 9 are damaged and the pressure in the tank rises to exceed the protection value, the safety valve 14 is opened to release the pressure, the temperature of the electric heater 6 is collected by the temperature sensor 8, when the temperature exceeds a set value, the electric heater 6 stops heating, when the low liquid level switch 12 or the water inlet electromagnetic valve 3 is damaged, the liquid level is reduced to be below the position of the heating protection liquid level switch 13, the electric heater 6 stops working, and when the electric heater does not work, the manual drainage ball valve 4 is opened to drain the water in the heating tank 1 and the water replenishing tank 2.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (7)
1. The utility model provides a negative pressure cabin humidification device with isolated sealed effect, includes heating jar (1) and moisturizing jar (2), its characterized in that: the left side of the water replenishing tank (2) is connected with the right side of the heating tank (1), the top of the water replenishing tank (2) is communicated with a water inlet pipeline, the surface of the water inlet pipeline is provided with a water inlet electromagnetic valve (3), the bottom of the water replenishing tank (2) is communicated with a communicating pipeline, one end of the communicating pipeline is communicated with the inner cavity of the heating tank (1), the surface of the communicating pipeline is respectively provided with a drainage manual ball valve (4) and a water replenishing manual ball valve (5) from left to right, the left side of the heating tank (1) is fixedly connected with an electric heater (6), the right side of the electric heater (6) is fixedly connected with a heat conducting rod, the right end of the heat conducting rod penetrates through the left side of the heating tank (1) and extends to the inner cavity of the heating tank (1), the inner cavity of the heating tank (1) is fixedly connected with a temperature sensor (8), and the top of the, the surface of admission line is provided with admission solenoid valve (9), and the surface of exhaust steam pipeline is provided with exhaust solenoid valve (7), through pressure balance pipe (10) intercommunication between admission line and the admission line, the inner chamber of heating jar (1) is fixedly connected with high liquid level switch (11), low liquid level switch (12) and heating protection liquid level switch (13) respectively.
2. The negative-pressure cabin humidifying device with the isolation sealing function as claimed in claim 1, wherein: the top of the heating tank (1) is communicated with a safety valve (14).
3. The negative-pressure cabin humidifying device with the isolation sealing function as claimed in claim 1, wherein: the inner chamber cladding of heating jar (1) has heat preservation (15), the bottom fixedly connected with installation foot of heating jar (1).
4. The negative-pressure cabin humidifying device with the isolation sealing function as claimed in claim 1, wherein: the right side of the water replenishing tank (2) is fixedly connected with a liquid level viewing mirror (16).
5. The negative-pressure cabin humidifying device with the isolation sealing function as claimed in claim 1, wherein: the heating tank (1) and the water replenishing tank (2) are fixedly connected or in split connection.
6. The negative-pressure cabin humidifying device with the isolation sealing function as claimed in claim 1, wherein: the electric heater (6) is installed by adopting a flange.
7. The negative-pressure cabin humidifying device with the isolation sealing function as claimed in claim 1, wherein: the use method of the negative pressure cabin humidifying device comprises the following steps:
when the water-saving water dispenser is not used, all electromagnetic valves are closed, a manual water-discharging ball valve (4) is closed, a manual water-replenishing ball valve (5) is opened, and the water level is between a high liquid level switch (11) and a low liquid level switch (12);
step two, when the environment simulation cabin is humidified under a negative pressure working condition, the steam inlet electromagnetic valve (9) is opened, the electric heater (6) starts to work, after the water temperature in the heating tank (1) is heated to a boiling point, water vapor starts to be supplemented into the negative pressure cabin, the water level in the water supplementing tank (2) is reduced to the position of the low liquid level switch (12) along with the water level in the heating tank (1), the water inlet electromagnetic valve (3) is opened to begin water supplementing, and when the water level is increased to the position of the high liquid level switch (11), the water inlet electromagnetic valve (3) is closed to stop water supplementing;
step three, in the working process of the electric heater (6), the pressure balance pipe (10) balances the pressure in the heating tank (1) and the water replenishing tank (2), and the liquid levels of the heating tank (1) and the water replenishing tank (2) are equal in height;
step four, when the humidity in the negative pressure cabin reaches a humidity target value, the power of the electric heater (6) is reduced, when the humidity exceeds a target allowable value, the electric heater (6) is closed, the steam exhaust electromagnetic valve (7) is opened, the steam inlet electromagnetic valve (9) is closed, the steam stored in the tank is exhausted to the atmospheric environment, after the water in the heating tank stops boiling, the steam exhaust electromagnetic valve (7) is opened, and the steam inlet electromagnetic valve (9) is opened;
and fifthly, when the steam exhaust electromagnetic valve (7) and the steam inlet electromagnetic valve (9) are damaged, the pressure in the tank rises to exceed a protection value, the safety valve (14) is opened to release the pressure, the temperature of the electric heater (6) is collected through the temperature sensor (8), when the temperature exceeds a set value, the electric heater (6) stops heating, when the low liquid level switch (12) or the water inlet electromagnetic valve (3) is damaged, the liquid level is reduced to be below the position of the heating protection liquid level switch (13), the electric heater (6) stops working, and when the electric heater does not work, the manual drainage ball valve (4) is opened to completely drain the water in the heating tank (1) and the water replenishing tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110442460.XA CN113068547A (en) | 2021-04-23 | 2021-04-23 | Negative pressure cabin humidifying device with isolated sealing function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110442460.XA CN113068547A (en) | 2021-04-23 | 2021-04-23 | Negative pressure cabin humidifying device with isolated sealing function |
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| CN113068547A true CN113068547A (en) | 2021-07-06 |
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| CN202110442460.XA Pending CN113068547A (en) | 2021-04-23 | 2021-04-23 | Negative pressure cabin humidifying device with isolated sealing function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114854566A (en) * | 2022-06-01 | 2022-08-05 | 广东国盛医学科技有限公司 | Extraction and purification instrument and extraction and purification method |
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| GB301747A (en) * | 1927-12-03 | 1929-12-05 | Maurice Eugene Chome | Improvements in or relating to steam generators |
| JP2001141269A (en) * | 1999-11-12 | 2001-05-25 | Showa Mfg Co Ltd | Indirect steam humidifier |
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| CN114854566A (en) * | 2022-06-01 | 2022-08-05 | 广东国盛医学科技有限公司 | Extraction and purification instrument and extraction and purification method |
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Application publication date: 20210706 |
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