CN114136722A - Air charging device and air charging method for underwater sampler - Google Patents
Air charging device and air charging method for underwater sampler Download PDFInfo
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- CN114136722A CN114136722A CN202111398237.6A CN202111398237A CN114136722A CN 114136722 A CN114136722 A CN 114136722A CN 202111398237 A CN202111398237 A CN 202111398237A CN 114136722 A CN114136722 A CN 114136722A
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- 238000000034 method Methods 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000007789 sealing Methods 0.000 claims description 7
- 238000005276 aerator Methods 0.000 claims description 3
- 238000005273 aeration Methods 0.000 claims 1
- 238000005070 sampling Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
- F04B49/022—Stopping, starting, unloading or idling control by means of pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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Abstract
The invention provides an aerating device and an aerating method for an underwater sampler, and relates to the field of underwater sampling. The inflator includes: the gas containing part is internally provided with a piston, a cylinder and a limiting piece, the piston covers a cylinder opening, the limiting piece is positioned on one side of the piston away from the top of the cylinder, and the maximum gas containing space of the gas containing part is determined by the distance between the limiting piece and the top of the cylinder; the sensor is arranged on two sides or any side of the piston; the air pump is connected with the air inlet of the air containing part so as to input air to the air containing part; the control module is connected with the sensor and the air pump and used for receiving a pressure or pressure signal of the sensor and transmitting a start-stop signal to the air pump; the control module controls the starting time of the air pump according to the input water depth data, so that the air containing part contains air with set pressure. The invention reduces the power cost of the mechanical sampler and improves the automation degree of the mechanical sampler by the accurately designed aerating device.
Description
Technical Field
The invention relates to the field of underwater sampling, in particular to an inflation device and an inflation method for an underwater sampler.
Background
In the scientific research process under water, need to take a sample to the water of the different degree of depth, prior art generally uses electron sampler to take a sample. When the electronic sampler is used in an underwater environment, the electronic sampler is easy to have the problems of short water inlet and the like, and particularly in the scenes of industrial wastewater with high water body temperature and strong corrosivity or the scenes of complex underwater electromagnetic environment, the scenes are not suitable for using the electronic sampler. But also the cost of an electron sampler that can meet the above environmental requirements is high. The traditional mechanical sampler is low in intelligent degree, and needs to be matched with other equipment such as an underwater robot to finish sampling at a specific water depth.
Disclosure of Invention
An object of the present invention is to provide an aerating device and an aerating method for an underwater sampler, which can reduce the power cost of a mechanical sampler and improve the automation degree of the mechanical sampler by an accurately designed aerating device.
In particular, the present invention provides an aerator for an underwater sampler, comprising:
the gas containing part comprises a piston, a cylinder and a limiting piece, the piston covers a cylinder opening, the limiting piece is positioned on one side, away from the top of the cylinder, of the piston, and the maximum gas containing space of the gas containing part is determined by the distance between the limiting piece and the top of the cylinder; the sensor is arranged on two sides or any side of the piston; the air pump is connected with the air inlet of the air containing part so as to input air to the air containing part; the control module is connected with the sensor and the air pump and used for receiving a pressure or pressure signal of the sensor and transmitting a start-stop signal to the air pump; the control module controls the starting time of the air pump according to the input water depth data, so that the air containing part contains air with set pressure. The gas containing part can contain gas with specific pressure, and the maximum volume of the contained gas can be adjusted, so that the power device with the sampler suitable for specific water depth is obtained.
Preferably, the air outlet of the air pump is connected with the air containing part through a one-way valve. The one-way valve can avoid the situation that the gas cannot be inflated due to overlarge gas pressure in the gas containing part.
Preferably, the sensor is a pressure sensor which is arranged at a position where the piston is contacted with the limiting piece and/or a position where the piston is contacted with the gas of the gas containing part; the sensor is an air pressure sensor and is arranged in the air containing space of the air containing part. The type and the position of the sensor are both used for obtaining the pressure of the gas in the gas containing part, so that the inflating time of the gas pump is controlled to obtain the gas with specific pressure.
Preferably, the stopper includes: the limiting part ring is located in the circumferential direction, the limiting part locating ring is located in the center, the limiting part ring is matched with the inner diameter of the air cylinder opening, the limiting part ring and the limiting part locating ring are hollow and fixedly connected through at least two connecting ribs, and the limiting part locating ring is provided with an internal thread. The locating part can control the maximum gas volume in the gas containing part, firstly, the gas leakage is avoided, secondly, the gas container in the gas containing part is controllable and adjustable, so that the gas container sampling device can be widely suitable for sampling of different water body types and water body depths, cylinders with different volumes do not need to be replaced aiming at different water body types and water body depths, and the cost of universal equipment is reduced.
Preferably, the adjusting device comprises an adjusting rod and a fixing part with a fixed position, the fixing part is provided with a through hole with an internal thread, the adjusting rod is provided with an external thread, the adjusting rod is matched with the through hole of the fixing part, one end of the adjusting rod is connected with the locating ring of the locating part, and the distance between the locating part and the top of the cylinder is adjusted by rotating the adjusting rod. Before inflating, set for the position of locating part through adjusting device accurately to obtain accurate gas volume, make flourishing gas portion be applied to sampler under water after, its equipment just can realize accurate sampling by oneself.
Preferably, the other end of the adjusting rod is connected with a rotating rod or a rotating wheel, and the rotating rod is perpendicular to the adjusting rod. The rotating rod or the rotating wheel enables the position of the adjusting rod to be adjusted more accurately, and the adjusting rod can be rotated to adjust the front position and the rear position.
Preferably, when the position of the limiting member is determined, the position of the limiting member in the cylinder is not changed, and the adjusting device is replaced with a limiting cap, which includes: the limiting cap ring is circumferentially arranged, the limiting cap positioning rod is centrally arranged, the limiting cap ring is matched with the outer diameter of the cylinder port, the inner thread of the limiting cap ring is matched with the outer thread of the outer side of the cylinder, the limiting cap ring and the limiting cap positioning rod are hollowed out and fixedly connected through at least two connecting rods, and the limiting cap positioning rod is provided with an outer thread and is matched with the inner thread of the limiting part positioning ring. The spacing cap cooperates with the shell of cylinder, utilizes the steadiness of cylinder shell to play the effect of stabilizing the spacing piece position for the spacing piece can be all the time on the position that calculates. The limiting cap can adapt to the limiting parts at different positions in a matching mode with the air cylinder and the limiting part.
Preferably, the orthographic projection positions of the connecting ribs and the connecting rods are overlapped. The connecting ribs and the connecting rods can avoid larger interference on water flow after being overlapped, so that water pressure under a specific water depth can directly act on the piston without obstruction, and the piston is pushed to compress gas without obstruction.
Preferably, under the condition that the air filling part completes inflation, the air pump is separated from the air filling part, and an air inlet of the air filling part is provided with a rigid sealing ball valve. The rigid sealing ball valve can not cause obvious change of the pressure intensity in the cylinder due to obvious deformation of the sealing piece of the charging port.
According to another aspect of the invention, there is also disclosed a method of aerating a subsea sampler, comprising the steps of:
s1: the control module obtains pressure data or pressure data of the set water depth;
s2: the control module transmits a starting signal to the air pump, and the air pump inflates the air containing part;
s3: the control module receives a pressure or pressure signal of the sensor;
s4: when the pressure or the pressure signal reaches the value of S1, the control module transmits a stop signal to the air pump, and the air pump stops inflating into the air containing part.
Compared with the prior art, the invention at least has the following technical effects:
1. the gas containing part can contain gas with specific pressure, and the maximum volume of the contained gas can be adjusted by the gas containing part, so that the power device with the sampler suitable for specific water depth is obtained. The limiting part can control the maximum gas volume in the gas containing part, so that the gas container in the gas containing part can be controlled and adjusted to widely adapt to sampling of different water body types and water body depths, cylinders with different capacities do not need to be replaced aiming at different water body types and water body depths, and the cost of universal equipment is reduced.
2. Before inflating, set for the position of locating part through adjusting device accurately to obtain accurate gas volume, make flourishing gas portion be applied to sampler under water after, its equipment just can realize accurate sampling by oneself. Before inflation, the adjusting device is replaced by a limiting cap. The spacing cap cooperates with the shell of cylinder, utilizes the steadiness of cylinder shell to play the effect of stabilizing the spacing piece position for the spacing piece can be all the time on the position that calculates. The limiting cap can adapt to the limiting parts at different positions in a matching mode with the air cylinder and the limiting part.
3. Because the limiting cap and the limiting piece are arranged on one side of the piston, which is contacted with the water body, the areas of the limiting cap and the limiting piece are reduced as much as possible in order to avoid the limiting cap and the limiting piece from interfering the action of the water body on the piston too much. The connecting ribs and the connecting rods can avoid larger interference on water flow after being overlapped, so that water pressure under a specific water depth can directly act on the piston without obstruction, and the piston is pushed to compress gas without obstruction.
4. The other parts have the beneficial effects that: the one-way valve can avoid the situation that the gas cannot be inflated due to overlarge gas pressure in the gas containing part. The type and the position of the sensor are both used for obtaining the pressure of the gas in the gas containing part, so that the inflating time of the gas pump is controlled to obtain the gas with specific pressure. The rigid sealing ball valve can not cause obvious change of the pressure intensity in the cylinder due to obvious deformation of the sealing piece of the charging port.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic view of a normal temperature and pressure state of a gas-containing part of the present invention when the gas-containing part is used in an underwater sampler;
FIG. 2 is a schematic view of the gas-filled portion of the present invention at a set water depth when used in an underwater sampler;
FIG. 3 is a schematic view of the inflator device of the present invention prior to inflation;
FIG. 4 is a schematic view of the inflator device of the present invention after inflation is complete;
FIG. 5 is a simplified diagram illustrating an angle of a position limiting element according to the present invention;
fig. 6 is a simple perspective view of an angle of the stopper cap of the present invention.
The symbols in the drawings indicate the following meanings:
1-an air pump, 2-an air containing part, 21-an air cylinder, 22-a piston, 3-a sensor, 4-a control module, 5-a limiting part, 51-a limiting part ring, 52-a connecting rib, 53-a limiting part positioning ring, 6-a fixing part, 7-a regulating rod, 8-a rotating rod, 9-a limiting cap, 91-a limiting cap ring, 92-a limiting cap positioning rod, 93-a connecting rod and 10-a sealed ball valve.
Detailed Description
As shown in fig. 1, when the gas container 2 of the present invention is used in an underwater sampler under normal temperature and pressure conditions, the gas is confined by the piston 22 and the stopper 5, and the gas state at a set pressure is maintained. As shown in fig. 2, the gas in the gas containing part 2 of the present invention at a set water depth is under the pressure of the water, the water pushes the piston 22, the gas is compressed, the piston 22 moves downward, so that the piston 22 drives the underwater sampler to move downward, and the cover of the sampler moves downward to buckle the sampling container. At this time, the sampling container obtains a water body sample under the set water depth.
The pressure of the liquid is calculated in the following way:
p＝ρgh (1)
in the formula: g is the acceleration of gravity, and the value is 9.8N/kg; h is the water depth, and the unit is m; rho is the liquid density in kg/m3(ii) a The pressure p has the unit Pa.
And (3) calculating pressure data of the gas containing part according to the pressure data and a formula (1), wherein the pressure calculation formula is as follows:
F＝ps (2)
in the formula: f is pressure in N; p is pressure in Pa; s is the cylinder internal cross-sectional area in m2。
The pressure of the gas in the gas containing part 2 is obtained by calculating the pressure of the specific water depth. The sectional area s inside the cylinder 21 of the gas containing part 2 produced in the same batch is a known constant, the control module 4 can calculate the pressure applied to the gas containing part 2 by the limiting device according to the formula (2), and the pressure can be measured by the sensor 3.
According to the principle of the formula, as shown in fig. 3, the air charging device for the underwater sampler mainly comprises an air pump 1, an air containing part 2, a sensor 3, a control module 4, a limiting part 5 and the like.
The gas containing portion 2 includes a piston 22, a cylinder 21, and a stopper 5. The area of the piston 22 is known and the piston 22 is able to cover the cylinder 21 port. The piston 22 is able to translate within the cylinder 21 under the influence of an external force, thereby varying the compression stroke of the gas within the cylinder 21.
The air pump 1 is connected with an air inlet of the air containing part 2 to input air to the air containing part 2. The air outlet of the air pump 1 is connected with the air containing part 2 through a one-way valve. The one-way valve can avoid the situation that the gas cannot be inflated due to the overlarge gas pressure in the gas containing part 2.
The sensor 3 is disposed on both sides or any one side of the piston 22, and is used for acquiring the pressure or the magnitude of the pressure of the gas in the cylinder 21. If the sensor 3 is a pressure sensor, it is disposed at a position where the piston 22 contacts the stopper 5 and/or a position where the piston 22 contacts the gas in the gas containing portion 2. If the sensor 3 is an air pressure sensor, it is disposed in the air containing space of the air containing portion 2.
The control module 4 is respectively connected with the sensor 3 and the air pump 1, and is used for receiving the pressure or pressure signal of the sensor 3 and then transmitting a start-stop signal to the air pump 1. According to the input water depth data, the control module 4 controls the starting time of the air pump 1, so that the air containing part 2 contains air with set pressure.
The specific control flow is as follows: after the air pump starts to inflate, the control module 4 transmits a starting signal to the air pump 1, and the air pump 1 inputs air to the air inlet of the air containing part 2 through the air conveying pipe. When the control module 4 receives the pressure or pressure data of the sensor 3 and reaches the pressure value under the specific water depth, the control module 4 transmits a stop signal to the air pump 1, and the air pump 1 stops transmitting air to the air containing part 2.
As shown in fig. 3, the limiting member 5 is located on the side of the piston 22 away from the top of the cylinder 21, and the maximum gas containing space of the gas containing part 2 is determined by the distance between the limiting member 5 and the top of the cylinder. Therefore, before the air charging, the position of the limiting member 5 in the air cylinder 21 needs to be determined, so that the maximum air containing space of the air containing portion 2 is determined. In the present embodiment, the position of the limiting member 5 is determined by an adjusting device with a scale.
As shown in fig. 5, the limiting member 5 includes: a stopper ring 51 located in the circumferential direction and a stopper positioning ring 53 located in the center. The retainer ring 51 fits the inner diameter of the cylinder port. The retainer ring 51 may be in close contact with the bore of the cylinder port to seal with the piston 22. The retainer ring 51 may not be required to closely fit the inner diameter of the cylinder port, because the retaining action of the retainer 5 is relative to the piston 22, and it is only necessary that the retainer 5 can contact the piston 22 at a fixed position and limit the movement of the piston 22. The limiting part ring 51 and the limiting part positioning ring 53 are hollow and fixedly connected through at least two connecting ribs 52. Therefore, regarding the contact area between the water body and the piston 22, the contact area between the limiting member 5 and the piston 22 does not affect the contact between the water body and the piston 22, and does not affect the direction in which the water body pushes the piston 22 to move toward the top of the cylinder. The retainer collar 53 also has internal threads.
The adjusting device comprises an adjusting rod 7 and a fixed fixing piece 6. The fixing piece 6 is provided with a through hole with internal threads, the adjusting rod 7 is provided with external threads, and the adjusting rod 7 is matched with the through hole of the fixing piece 6. The adjusting rod 7 is rotated, and the forward and backward movement of the adjusting rod 7 can be realized. One end of the adjusting rod 7 is connected with the limiting piece positioning ring 53. The other end of the adjusting rod 7 is connected with a rotating rod 8 or a rotating wheel, wherein the rotating rod 8 is perpendicular to the adjusting rod 7. The rotating rod 8 or the rotating wheel is provided with scales to prompt a user how many angles to rotate and how much distance to advance/retreat the adjusting rod 7. When the adjusting rod 7 is rotated, the adjusting rod 7 advances/retreats to drive the limiting member 5 to advance/retreat in the cylinder 21, thereby adjusting the distance between the limiting member 5 and the top of the cylinder.
After the position of the restriction 5 has been determined, at which time the inflation has not yet started, the restriction has not yet been subjected to the pressure of the gas. As shown in fig. 4, the position of the limiting member 5 in the cylinder 21 is not changed, and the adjusting device is replaced with the limiting cap 9.
As shown in fig. 4 and 6, the stopper cap 9 includes: a limit cap ring 91 positioned in the circumferential direction and a limit cap positioning rod 92 positioned in the center. The limiting cap ring 91 is matched with the outer diameter of the cylinder port, and the inner thread of the limiting cap ring 91 is matched with the outer thread of the outer side of the cylinder 21. The length of the limit cap positioning rod 92 extending into the cylinder 21 can be adjusted by rotating the limit cap ring 91. The spacing cap ring 91 and the spacing cap positioning rod 92 are hollow and fixedly connected through at least two connecting rods 93. The areas of the limit cap ring 91 and the limit cap positioning rod 92 do not influence the contact between the water body and the piston 22, and do not influence the water body to push the piston 22 to move towards the top of the cylinder. The position-limiting cap positioning rod 92 has an external thread and is matched with the internal thread of the position-limiting member positioning ring 53. Therefore, the stopper cap 9 is fixed to the cylinder 21 by the stopper cap ring 91, and the stopper is fixed by the stopper cap positioning rod 92.
The limiting cap 9 is matched with the shell of the air cylinder 21, and the effect of stabilizing the position of the limiting piece is achieved by utilizing the stability of the shell of the air cylinder 21, so that the limiting piece can be always positioned at a calculated position. The matching mode of the limiting cap 9, the cylinder 21 and the limiting part 5 enables the limiting cap 9 to adapt to limiting parts at different positions.
The orthographic projection positions of the connecting ribs 52 and the connecting rods 93 are overlapped. Since the limiting cap 9 and the limiting member 5 are both on the side of the piston 22 contacting the water body, the areas of the limiting cap 9 and the limiting member 5 are reduced as much as possible in order to avoid the limiting cap 9 and the limiting member 5 interfering too much with the action of the water body on the piston 22. The overlap of the connecting ribs 52 and the connecting rods 93 can avoid greater interference with water flow, so that water pressure in a specific water depth can directly act on the piston 22 without obstruction, thereby pushing the piston 22 to compress gas without obstruction.
As shown in fig. 4. When the gas filling part 2 completes the inflation, the air pump 1 is separated from the gas filling part 2, and a rigid sealing ball valve 10 is arranged at the air inlet of the gas filling part 2. The hard seal ball valve 10 does not cause significant changes in pressure within the cylinder 21 due to significant deformation of the charging port closure.
In summary, with the structures shown in fig. 3 and 4, the gas charging device of the present invention can obtain a power mechanism of an underwater sampler with a variable maximum gas space of the cylinder 21 and controllable gas pressure. The steps of the specific inflation method are as follows.
S1: the control module 4 obtains pressure data or pressure data of the set water depth.
According to the formula (1) and the formula (2), the density and the water depth of the specific water sample and the sectional area data of the piston 22 are input, and the required gas pressure can be obtained when the water sample with the specific water depth is collected. The optimal compression stroke distance can also be calculated, so that the limiting part 5 is fixed at a certain position in the air cylinder 21 by using the adjusting device and the limiting cap 9, and the maximum air containing space determined by the air containing part 2 is obtained.
S2: the control module 4 transmits a starting signal to the air pump 1, and the air pump 1 inflates air into the air containing part 2.
The air pump 1 inflates air into the air containing part 2 through an air conveying pipe and a one-way valve.
S3: the control module 4 receives a pressure or pressure signal from the sensor 3.
The control device receives the pressure signal of the sensor 3 to judge whether the gas pressure reaches the calculated value.
S4: when the pressure or the pressure signal reaches the value of S1, the control module 4 transmits a stop signal to the air pump 1, and the air pump 1 stops inflating into the air containing portion 2.
At this time, the pressure of the gas in the gas containing portion 2 reaches a calculated value, and the gas pump 1 stops delivering the gas.
In summary, the gas containing part 2 of the present invention can contain gas at a specific pressure, and the maximum volume of the contained gas can be adjusted by the gas containing part 2, so as to obtain a power device with a sampler suitable for a specific water depth. Wherein, the locating part 5 can control the biggest gas volume in flourishing gas portion 2, firstly avoids the condition of gas leakage to take place, secondly for making the controllable adjustable of the gas container in flourishing gas portion 2 to adapt to the sampling of different water types and water degree of depth more extensively, need not change the cylinder 21 of different capacities to different water types and water degree of depth, reduced the cost of commonality equipment.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. An aerator for an underwater sampler, comprising:
the gas containing part comprises a piston, a cylinder and a limiting piece, the piston covers a cylinder opening, the limiting piece is positioned on one side, away from the top of the cylinder, of the piston, and the maximum gas containing space of the gas containing part is determined by the distance between the limiting piece and the top of the cylinder;
the sensor is arranged on two sides or any side of the piston;
the air pump is connected with the air inlet of the air containing part so as to input air to the air containing part;
the control module is connected with the sensor and the air pump and used for receiving a pressure or pressure signal of the sensor and transmitting a start-stop signal to the air pump;
the control module controls the starting time of the air pump according to the input water depth data, so that the air containing part contains air with set pressure.
2. The inflator for the underwater sampler according to claim 1, wherein an air outlet of the air pump is connected to the air containing portion through a one-way valve.
3. The gas filling device for the underwater sampler according to claim 1, wherein the sensor is a pressure sensor which is arranged at a position where the piston is in contact with the limiting member and/or a position where the piston is in contact with gas of the gas containing part; the sensor is an air pressure sensor and is arranged in the air containing space of the air containing part.
4. The gas filling apparatus for an underwater sampler as claimed in claim 1, wherein the stopper comprises: the limiting part ring is located in the circumferential direction, the limiting part locating ring is located in the center, the limiting part ring is matched with the inner diameter of the air cylinder opening, the limiting part ring and the limiting part locating ring are hollow and fixedly connected through at least two connecting ribs, and the limiting part locating ring is provided with an internal thread.
5. The aerating device of claim 4, wherein the adjusting device comprises an adjusting rod and a fixed fixing member, the fixed fixing member is provided with a through hole with internal threads, the adjusting rod is provided with external threads, the adjusting rod is matched with the through hole of the fixed fixing member, one end of the adjusting rod is connected with the position-limiting member locating ring, and the distance between the position-limiting member and the cylinder top is adjusted by rotating the adjusting rod.
6. The aerator of claim 5, wherein the other end of the adjusting rod is connected to a rotating rod or a rotating wheel, and the rotating rod is perpendicular to the adjusting rod.
7. The gas filling device for the underwater sampler according to claim 5, wherein the position of the limiting member in the cylinder is unchanged in case that the position of the limiting member is determined, and the adjusting device is replaced with a limiting cap comprising: the limiting cap ring is circumferentially arranged, the limiting cap positioning rod is centrally arranged, the limiting cap ring is matched with the outer diameter of the cylinder port, the inner thread of the limiting cap ring is matched with the outer thread of the outer side of the cylinder, the limiting cap ring and the limiting cap positioning rod are hollowed out and fixedly connected through at least two connecting rods, and the limiting cap positioning rod is provided with an outer thread and is matched with the inner thread of the limiting part positioning ring.
8. The inflator for a marine sampler of claim 7, wherein orthographic positions of the connection rib and the connection rod overlap.
9. The aerating device of claim 1 wherein said air pump is separated from said air containing portion in the event that said air containing portion completes its aeration, and the air inlet of said air containing portion is provided with a rigid sealing ball valve.
10. A method of aerating a subsea sampler, comprising the steps of:
s1: the control module obtains pressure data or pressure data of the set water depth;
s2: the control module transmits a starting signal to the air pump, and the air pump inflates the air containing part;
s3: the control module receives a pressure or pressure signal of the sensor;
s4: when the pressure or the pressure signal reaches the value of S1, the control module transmits a stop signal to the air pump, and the air pump stops inflating into the air containing part.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111398237.6A CN114136722A (en) | 2021-11-23 | 2021-11-23 | Air charging device and air charging method for underwater sampler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111398237.6A CN114136722A (en) | 2021-11-23 | 2021-11-23 | Air charging device and air charging method for underwater sampler |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0755662A (en) * | 1993-08-11 | 1995-03-03 | Ship & Ocean Zaidan | Automatic water sampling device and method for automatically sampling deep-sea water |
| WO1999001338A1 (en) * | 1997-07-03 | 1999-01-14 | The Secretary Of State For Defence | Depth control device |
| WO2011069808A2 (en) * | 2009-12-11 | 2011-06-16 | Rolls-Royce Plc | Machine buoyancy control |
| CN103123042A (en) * | 2013-02-05 | 2013-05-29 | 上海大学 | Variable air-capacitor device |
| CN103439146A (en) * | 2013-09-14 | 2013-12-11 | 淮海工学院 | Positive-pressure pneumatic type automatic water sample sampler |
| CN106678028A (en) * | 2015-11-11 | 2017-05-17 | 上海荣威塑胶工业有限公司 | Air pump control system and method |
| CN209875430U (en) * | 2019-02-12 | 2019-12-31 | 上海荣威塑胶工业有限公司 | Intelligent electric air pump |
| CN210004151U (en) * | 2019-04-22 | 2020-01-31 | 无锡联众气体有限公司 | industrial gas storage pressure real-time intelligent monitoring system |
| CN111175205A (en) * | 2020-02-18 | 2020-05-19 | 长江存储科技有限责任公司 | Air cylinder |
| CN213734699U (en) * | 2020-11-20 | 2021-07-20 | 海南大学 | Air spring seat with variable vehicle volume |
| CN113148083A (en) * | 2021-04-19 | 2021-07-23 | 中国人民解放军国防科技大学 | Multi-rotor cross-medium marine environment detection platform and detection method thereof |
-
2021
- 2021-11-23 CN CN202111398237.6A patent/CN114136722A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0755662A (en) * | 1993-08-11 | 1995-03-03 | Ship & Ocean Zaidan | Automatic water sampling device and method for automatically sampling deep-sea water |
| WO1999001338A1 (en) * | 1997-07-03 | 1999-01-14 | The Secretary Of State For Defence | Depth control device |
| WO2011069808A2 (en) * | 2009-12-11 | 2011-06-16 | Rolls-Royce Plc | Machine buoyancy control |
| CN103123042A (en) * | 2013-02-05 | 2013-05-29 | 上海大学 | Variable air-capacitor device |
| CN103439146A (en) * | 2013-09-14 | 2013-12-11 | 淮海工学院 | Positive-pressure pneumatic type automatic water sample sampler |
| CN106678028A (en) * | 2015-11-11 | 2017-05-17 | 上海荣威塑胶工业有限公司 | Air pump control system and method |
| CN209875430U (en) * | 2019-02-12 | 2019-12-31 | 上海荣威塑胶工业有限公司 | Intelligent electric air pump |
| CN210004151U (en) * | 2019-04-22 | 2020-01-31 | 无锡联众气体有限公司 | industrial gas storage pressure real-time intelligent monitoring system |
| CN111175205A (en) * | 2020-02-18 | 2020-05-19 | 长江存储科技有限责任公司 | Air cylinder |
| CN213734699U (en) * | 2020-11-20 | 2021-07-20 | 海南大学 | Air spring seat with variable vehicle volume |
| CN113148083A (en) * | 2021-04-19 | 2021-07-23 | 中国人民解放军国防科技大学 | Multi-rotor cross-medium marine environment detection platform and detection method thereof |
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