JP4450934B2 - Barometric pressure control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention, working under diving and high pressure, training, or such a container (chamber) in that equipment to control the target pressure of for use in such testing.
[0002]
[Prior art]
The conventional pressurization / decompression and pressure control methods are performed using a compressor or a gas cylinder through a pressure reducing valve.
[0003]
[Problems to be solved by the invention]
In the conventional method, noise caused by the air supply sound during pressurization hinders communication conversation, or the temperature rises due to adiabatic compression. For this reason, consideration for environmental control is required, the equipment cost of the high-pressure gas equipment is expensive, and there are many problems due to gas leaks, resulting in problems of reliability and safety.
The present invention has been developed for the purpose of solving such problems.
[0004]
[Means for Solving the Problems]
In the conventional atmospheric pressure control method, the interior of the chamber is divided into a residential area and a liquid chamber while maintaining air permeability. And liquid is supplied / discharged with respect to this liquid chamber, and the atmospheric | air pressure in a residential area is controlled.
[0005]
When the hatch is opened and a test object such as an animal or plant or an instrument is accommodated in the chamber residence, the hatch is closed and liquid is injected into the liquid chamber. As the volume of the liquid increases, the air volume in the chamber becomes narrower, so that the air is gradually compressed and the atmospheric pressure rises. Therefore, the atmospheric pressure in the residential area gradually increases. When the atmospheric pressure in the residential area reaches a predetermined value, the supply of liquid is stopped.
Various operations, training, tests, etc. are performed in this state.
[0006]
When the work, training, testing, etc. are completed, the liquid in the liquid chamber is discharged. As the liquid decreases, the air space in the chamber becomes wider and the atmospheric pressure decreases, so the atmospheric pressure in the residential area also decreases. When the air pressure in the residential area becomes equal to the atmospheric pressure, the liquid discharge is stopped. Open the hatch and take the test specimen in the residential area outside.
[0007]
Inexpensive and incompressible water can also be used for the liquid. The liquid can be supplied to and discharged from the liquid chamber using a pump, and the liquid can be discharged using a pump or simply via a valve.
[0008]
The pressure in the container (chamber) rises by sending liquid and compressing air, and is reduced by removing the liquid. For this reason, there is no air supply sound, no temperature rise due to adiabatic compression, no troubles in the high-pressure gas equipment, and inexpensive, safe and reliable control is possible.
[0009]
Moreover, since any water depth can be created without using high-pressure gas, it is possible to perform a diving simulation test and various waterproof tests.
In a manned test or the like, by adopting water as the liquid, carbon dioxide of the exhaled gas is dissolved under pressure in this water, so that a safer environment (control) is obtained.
[0010]
The living area and the liquid chamber are arranged vertically on a vertical line .
In this case, the device under test can be directly moved in and out of the residential area without passing through the liquid chamber, and the occupied floor area is reduced.
[0011]
The first atmospheric pressure control device according to the present invention includes a chamber, a liquid storage tank, and a liquid flow device.
The chamber includes a residential area having a hatch, a liquid chamber, a partition floor for partitioning the residential area and the liquid chamber while maintaining air permeability, and a liquid level control means for the liquid chamber.
The liquid storage tank is provided with a temperature control device for supplying liquid to the liquid chamber, and a liquid supply path is opened.
The flow apparatus includes a conduit that connects the chamber and the liquid storage tank, a valve that is interposed in parallel with the conduit, and a pressure pump.
[0012]
Open the hatch into the chamber's residential area and feed the device under test. The test object is a person, a device, a machine tool, or various objects. When the hatch is closed, operate the pressure pump. The liquid in the liquid storage tank is sent to the liquid chamber of the chamber, and the empty space in the chamber corresponding to the supplied volume is reduced. Therefore, the air confined in the chamber is gradually compressed, and the atmospheric pressure increases. When the predetermined pressure is reached, the pressure pump is stopped and the liquid supply is stopped. Work, training, testing, etc. are performed in this state.
[0013]
When work, training, testing, etc. are finished, open the valve. When this valve is opened toward the atmosphere, the liquid in the liquid chamber flows out to the outside. Also, if this valve only has an opening / closing function between the chamber and the storage tank, the liquid in the liquid chamber circulates to the storage tank until the two liquid levels are balanced due to the water head due to the liquid level difference between the liquid chamber and the storage tank. To do. Therefore, in any case, the air space in the chamber spreads and the atmospheric pressure decreases. Open the hatch and remove the specimen.
[0014]
In this device, since separate from the liquid chamber and the reservoir chamber, respectively can-service for testing various, because it uses a liquid storage tank to the pressure control chamber, waste is not free of liquid.
[001 5 ]
Since the liquid storage tank is provided with a temperature control device, the temperature of the liquid sent to the liquid chamber is adjusted, and the temperature in the residential area can be adjusted to a temperature suitable for work or the like.
[001 6 ]
In addition, since any water depth can be created without using high-pressure gas, it is possible to perform diving simulation tests and various waterproof tests.
In a manned test or the like, by adopting water as the liquid, carbon dioxide of the exhaled gas is dissolved under pressure in this water, so that a safer environment (control) is obtained.
[0017]
(Claim 2) A second atmospheric pressure control device according to the present invention comprises the liquid storage tank as a vertically long cylindrical body in addition to the configuration of the first column of the first atmospheric pressure control device. The upper end is opened and it is buried in the ground.
[0018]
In this case, a large occupied area and high space are not required for installing the liquid storage tank.
[0019]
(Claim 3) According to the third atmospheric pressure control device of the present invention, in addition to the configuration of the first column of the first atmospheric pressure control device, the liquid storage tank does not have a temperature control device, It is composed of a heel and a stretchable sac, and a liquid is allowed to enter and exit the sac.
In this case, the residential area is dry and suitable for various works and tests that dislike moisture.
[00 20 ]
(Claim 4) The residential area may be provided with at least one of a service lock, a viewing window, a lighting device, a thermometer, and an emergency breathing mask.
In this case, the user-friendliness of the residential area is improved.
[00 21 ]
(Claim 5) The partition floor may be a lattice type.
In this case, the partition floor is ensured to be air permeable, is flat and has no anxiety, and provides a floor surface with sufficient strength.
[00 22 ]
(Claim 6) The liquid level control means may be provided with an overflow valve communicating with the inside and outside of the liquid chamber, and the atmospheric pressure in the living area may be determined by the position of the liquid level.
In this case, it can be known that the atmospheric pressure in the residential area has reached a predetermined value due to the overflow of the liquid.
[002 3 ]
(7) The valve may be used for liquid level equilibration in the liquid storage tank and the liquid chamber, and the pressure pump may be used for pressure-feeding the liquid in the liquid storage tank to the liquid chamber.
In this case, when the atmospheric pressure in the residential area is lowered, the liquid level of the liquid chamber and the liquid storage tank can be quickly balanced simply by opening the valve, and the operating cost of the pressurizing pump can be reduced.
[002 4 ]
(Claim 8) The chamber may be a vertically long cylindrical body, and the living area and the liquid chamber may be arranged vertically.
In this case, a large occupied area is not required for installation of the chamber.
[002 5 ]
(Claim 9) The cylindrical body may be configured such that a portion of the liquid chamber is embedded in the ground.
In this case, a high space is not required for the installation of the cylindrical body, and the test subject can easily enter and exit the residential area.
[002 6 ]
(Claim 10) The liquid storage tank may be a vertically long cylindrical body.
In this case, a large occupied area is not required for installing the liquid storage tank.
[002 7 ]
(Claim 11) The cylindrical body may be embedded in the ground with the upper end opened.
In this case, a high space is not required for installation.
[002 8 ]
(Claim 12) In Claim 1 or 2, the liquid chamber may be composed of an outer casing and a stretchable sac, and the liquid may enter and exit the sac.
In this case, the residential area is dry and suitable for various works and tests that dislike moisture.
[002 9 ]
DETAILED DESCRIPTION OF THE INVENTION
(Claim 1) FIG. 1 is a partially cut side view showing a specific example of an apparatus according to the present invention.
Reference numeral 1 denotes a chamber, 2 denotes a liquid storage tank, and 3 denotes a liquid flow device.
The chamber 1 has a residential area 12 with a hatch 11, a liquid chamber 13, a partition floor 14 that partitions the residential area 12 and the liquid chamber 13 while maintaining mutual air permeability, and a liquid level control means 15 for the liquid chamber 13. Yes.
The liquid storage tank 2 is for supplying a liquid to the liquid chamber 13, is provided with a temperature control device 22, and a liquid supply path 21 is opened.
The fluid flow device 3 includes a conduit 31 that connects the chamber 1 and the liquid storage tank 2, and a valve 32 and a pressure pump 33 that are interposed in the conduit 31 in parallel.
[0030]
The person opens and closes the hatch 11 for entry and exit, and is placed on the division floor 14 and fits in the residential area 12. The pressure pump 33 is operated to press-fit the liquid in the liquid storage tank 2 into the liquid chamber 13. As the liquid level L rises, the air volume in the chamber 1 becomes narrower, so the air is compressed and the atmospheric pressure rises.
[0031]
The liquid level is controlled by the liquid level control means 15. FIG. 3 shows DIVE PROFILE. In the case of a 30 m (4 ata) simulation chamber (no decompression time = 25 minutes), which is a safe diving depth in normal diving, the liquid level control means 15 is operated in the living area 12. The pressure is 4 ata equivalent to 30m.
[0032]
The pressure increase / decrease control by operating the valve 32 and the pressure pump 33 can be performed on the control control panel 34. In addition, you may make it pressurize the residential area 12 directly.
The valve 32 is used for initial pressure equalization when the liquid is moved between the liquid storage tank 2 and the chamber 1, and reduces the load on the pressurizing pump 33.
[0033]
Since the temperature control device 22 is attached to the liquid storage tank 2, the temperature of the liquid sent to the liquid chamber 13 is adjusted, and the temperature in the residential area 12 can be adjusted to a temperature suitable for work.
[0034]
(Claim 2) In the case of the second atmospheric pressure control device according to the present invention, a cylindrical body whose shape is a vertically long shape except for the temperature control device 22 in the liquid storage tank 2 with respect to the configuration of the first atmospheric pressure control device. 23, and the upper end of the buried structure of the cylindrical body 23 is opened.
In this way, a large occupied area is not required for the installation of the chamber 1, a high space is not required for the installation of the cylindrical body 16, and the test object can easily enter and exit the residential area 12.
[0035]
(Claim 3) According to the third atmospheric pressure control device of the present invention, the temperature control device 22 is removed in the liquid storage tank 2 and the liquid chamber 13 is connected to the outer casing 131 with respect to the configuration of the first atmospheric pressure control device. It is composed of an elastic sac 132, and the liquid enters and exits the sac 132.
If it carries out like this, the inside of the residential area 12 will be a dry type, and it is suitable for the various work, test, etc. which dislike moisture.
[003 6 ]
(Claim 4) The residential area 12 is provided with at least one of a service lock 121, a viewing window 122, a lighting device 123, a thermometer 124, and an emergency breathing mask 125. This improves the usability of the residential area 12. .
[003 7 ]
(Claim 5) The partition floor 14 is a lattice type.
In this way, the partition floor 14 is ensured to be air permeable, is flat and has no anxiety, and provides a floor surface with sufficient strength.
[003 8 ]
(Claim 6) The liquid level control means 15 includes an overflow valve 151 communicating with the inside and outside of the liquid chamber 13, and controls the atmospheric pressure in the living area 12 by controlling the liquid level L.
In this way, it is possible to know that the atmospheric pressure in the residential area 12 has reached a predetermined value due to the overflow of the liquid.
[003 9 ]
(Claim 7) The valve 32 is for liquid level equilibration in the liquid storage tank 2 and the liquid chamber 13, and the pressurizing pump 33 is for pumping the liquid in the liquid storage tank 2 to the liquid chamber 13.
In this way, when the atmospheric pressure of the residential area 12 is lowered, the liquid level of the liquid chamber 13 and the liquid storage tank 2 can be quickly balanced simply by opening the valve 32, and the operating cost of the pressurizing pump 33 can be reduced.
[00 40 ]
(Claim 8) The chamber 1 is a vertically long cylindrical body 16, and the living area 12 and the liquid chamber 13 are arranged one above the other. Thus, a large occupied area is not required for the installation of the chamber 1.
[00 41 ]
(Claim 9) The cylindrical body 16 is configured such that a portion of the liquid chamber 13 is buried in the ground.
If it carries out like this, installation of the to-be-tested object with respect to the residential area 12 is also easy, without requiring high space for installation of the cylindrical body 16. FIG.
[00 42 ]
(Claim 10) The liquid storage tank 2 is a vertically long cylindrical body 23.
In this way, a large occupied area is not required for installing the liquid storage tank 2.
[004 3 ]
(Claim 11) The cylindrical body 23 is embedded in the ground with its upper end opened.
In this way, high space is not required for installation.
[004 4 ]
(Claim 12) The liquid chamber 13 is composed of an outer casing 131 and a stretchable sac 132, and the liquid enters and exits the sac 132.
If it carries out like this, the inside of the residential area 12 will be a dry type, and it is suitable for the various work, test, etc. which dislike moisture.
[004 5 ]
【Example】
In FIG. 4, the shape of the chamber 1 is 3 m in diameter, 12 m in length, the volume is 20 m ³ (gas space) in the height 3 m of the living area 12, the liquid chamber 13 is 60 m ³ (60 tons of water), and the liquid storage tank 2 was 3 m □, the depth was 9 m, the same as chamber 1, and the amount of water stored was 80 tons. The pressure increase / decrease rate is a prescribed 10 m / min, and the pressurizing pump 33 has a water head of 30 m and a discharge rate of 20 tons / min.
[004 6 ]
In using this system, 60 tons or more of water was stored in the liquid storage tank 2. The living room 12 was entered from the hatch 11, the valve 32 was opened, the water levels in the liquid chamber 13 and the liquid storage tank 2 were balanced, and the water in the liquid storage tank 2 was injected into the liquid chamber 1 by the pressure pump 33.
[004 7 ]
The gas space is ½ liquid level (30 ton injection), the pressure in the residential area 12 is doubled (= 3 ata), and near the compartment floor 14 (60 ton injection) is equivalent to 30 m water depth (4 ata) and m ^3. It was.
[004 8 ]
That is, it is the same as when the residential area 12 is pressurized to 4 ata with air. The pressure control inside the living area 12 can be controlled in any way by the liquid level control of the liquid chamber 13. The same applies to the pressure reduction, and the water is returned to the water storage tank by switching the valve of the pressurizing pump 33.
[004 9 ]
There was no noise at the time of pressurization, and the temperature and the contact area with water were large (about 7 m ³ ). Therefore, the temperature rise was small and carbon dioxide due to exhalation was dissolved in water as well.
[00 50 ]
【The invention's effect】
According to a first pressure control device according to the present invention of claim 1, the chamber of the liquid chamber and the liquid storage tank, separate, each can-service for testing various air pressure control in the chamber a liquid storage tank because it uses a waste liquid rather free, since can adjust the temperature of the liquid sent to the liquid chamber, can control the temperature of residential wards to a temperature suitable for operation or the like. In addition, since any water depth can be created without using high-pressure gas, it is possible to perform diving simulation tests and various waterproof tests. In manned tests and the like, by adopting water as the liquid, the carbon dioxide of the expiratory gas can be dissolved under pressure in this water, so that a safer environment (control) can be achieved.
[0051]
According to the second atmospheric pressure control device according to the present invention of claim 2, in addition to the effect based on the configuration of the first column of the first atmospheric pressure control device, a large occupied area and a high space are provided for the installation of the liquid storage tank. do not need.
005 2 ]
According to the third atmospheric pressure control device according to the present invention of claim 3, in addition to the effects based on the configuration of the first column of the first atmospheric pressure control device, the interior of the residential area is dry-type, and various operations that dislike moisture Suitable for testing.
005 3 ]
According to claim 4, it is possible to improve the use of the residential area.
[005 4 ]
According to the fifth aspect, the partition floor is ensured to be air permeable, flat and free from anxiety, and can provide a floor surface with sufficient strength.
[005 5 ]
According to the sixth aspect, it is possible to know that the atmospheric pressure in the residential area has reached a predetermined value due to the overflow of the liquid.
[005 6 ]
According to the seventh aspect , when the atmospheric pressure in the residential area is lowered, the liquid level of the liquid chamber and the liquid storage tank can be quickly balanced just by opening the valve, and the operating cost of the pressurizing pump can be reduced.
[005 7 ]
According to claim 8 , a large occupied area is not required for the installation of the chamber.
[005 8 ]
According to the ninth aspect , a high space is not required for the installation of the cylindrical body, and it is easy to enter and leave the device under test with respect to the residential area.
[005 9 ]
According to claim 1 0, it does not require a large occupied area for installing the reservoir.
[00 60 ]
According to claim 1 1, it does not require high installation space.
[00 61 ]
According to claim 1 2, residential wards becomes dry, various work dislike moisture, suitable for testing or the like.
[Brief description of the drawings]
It is a schematic side view of a tool body examples of pressure control device according to the invention; FIG.
FIG. 2 is a schematic side view showing a specific example of a dry-type atmospheric pressure control device.
FIG. 3 is a diagram showing a dive profile.
FIG. 4 shows specific numerical values assigned to the apparatus shown in FIG. 1 for implementation.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Chamber 2 Liquid storage tank 3 Flow apparatus 11 Hatch 12 Living area 13 Liquid chamber 14 Compartment floor 15 Liquid level control means 16 Tubular body 21 Liquid supply path 22 Temperature control apparatus 23 Tubular body 31 Conduction path 32 Valve 33 Pressurization Pump 121 Service lock 122 Viewing window 123 Illumination tool 124 Thermometer 125 Emergency breathing mask 131 Outer casing 132 Pouch 151 Overflow valve

Claims (12)

Equipped with chamber (1), liquid storage tank (2), liquid flow device (3),
The chamber (1) is a residential area (12) provided with a hatch (11), a liquid chamber (13), and a partition floor that partitions the residential area (12) and the liquid chamber (13) while maintaining mutual ventilation. 14), liquid level control means (15) of the liquid chamber (13),
The liquid storage tank (2) is provided with a temperature control device (22) for supplying liquid to the liquid chamber (13), and a liquid supply path (21) is opened,
The liquid flow device (3) includes a conduit (31) connecting the chamber (1) and the liquid storage tank (2), and a valve (32) interposed in parallel with the conduit (31). And a pressure pump (33). Equipped with chamber (1), liquid storage tank (2), liquid flow device (3),
The chamber (1) is a residential area (12) provided with a hatch (11), a liquid chamber (13), and a partition floor that partitions the residential area (12) and the liquid chamber (13) while maintaining mutual ventilation. 14), liquid level control means (15) of the liquid chamber (13),
The liquid storage tank (2) is a vertically long cylindrical body (23) having an open liquid supply passage (21) for supplying liquid to the liquid chamber (13), and the cylindrical body (23) Buried in the ground with the upper end open,
The liquid flow device (3) includes a conduit (31) connecting the chamber (1) and the liquid storage tank (2), and a valve (32) interposed in parallel with the conduit (31). And a pressure pump (33). Equipped with chamber (1), liquid storage tank (2), liquid flow device (3),
The chamber (1) is a residential area (12) provided with a hatch (11), a liquid chamber (13), and a partition floor that partitions the residential area (12) and the liquid chamber (13) while maintaining mutual ventilation. 14), liquid level control means (15) of the liquid chamber (13),
The liquid storage tank (2) has an open liquid supply path (21) for supplying liquid to the liquid chamber (13),
The liquid flow device (3) includes a conduit (31) connecting the chamber (1) and the liquid storage tank (2), and a valve (32) interposed in parallel with the conduit (31). And a pressure pump (33)
The air pressure control device characterized in that the liquid chamber (13) is constituted by an outer casing (131) and a stretchable sac body (132), and liquid enters and exits the sac body (132). . The living area (12) is provided with at least one of a service lock (121), a viewing window (122), a lighting device (123), a thermometer (124) and an emergency breathing mask (125) . The atmospheric pressure control apparatus according to 2 or 3 . The atmospheric pressure control device according to claim 1, 2, 3, or 4 , wherein the partition floor (14) has a lattice shape. The liquid level control means (15) includes an overflow valve (151) communicating with the inside and outside of the liquid chamber (13), and controls the atmospheric pressure in the residential area (12) by controlling the liquid level (L). The atmospheric pressure control device according to one of claims 1 to 5, wherein The valve (32) is used for liquid level equilibration in the liquid storage tank (2) and the liquid chamber (13), and the pressure pump (33) supplies the liquid in the liquid storage tank (2) to the liquid chamber ( The pressure control device according to one of claims 1 to 6, wherein the pressure control device is for pressure feeding to 13). The pressure control according to one of claims 1 to 7, wherein the chamber (1) is a vertically long cylindrical body (16), and the living area (12) and the liquid chamber (13) are arranged vertically. apparatus. The atmospheric pressure control device according to claim 8 , wherein the cylindrical body (16) is configured such that a portion of the liquid chamber (13) is buried in the ground. The atmospheric pressure control device according to claim 1 or 3, wherein the liquid storage tank (2) is a vertically long cylindrical body (23). Cylindrical body (23) is pressure control apparatus according to claim 1 0 that is to be buried in the ground by opening the top end. Liquid chamber (13) is composed of a stretchable cover hood (131) bladder (132),該嚢body (132) according to in which claim 1 or 2 adapted liquid enters and exits to the Barometric pressure control device.

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