CN112649189B - Capsule pressure detection device and detection method under full lightning state - Google Patents
Capsule pressure detection device and detection method under full lightning state Download PDFInfo
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- CN112649189B CN112649189B CN202011575422.3A CN202011575422A CN112649189B CN 112649189 B CN112649189 B CN 112649189B CN 202011575422 A CN202011575422 A CN 202011575422A CN 112649189 B CN112649189 B CN 112649189B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
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Abstract
The invention relates to a capsule pressure detection device and a detection method under a full mine state, which solve the defect that in the prior art, capsule pressure detection cannot be carried out until relevant data is read completely after torpedo training is finished, so that measurement is inaccurate.
Description
Technical Field
The invention belongs to the field of floating bag pressure detection, and particularly relates to a bag pressure detection device and a detection method in a full thunder state.
Background
After the negative buoyancy torpedo sails, the floating bag is inflated to expand to generate positive buoyancy, so that the torpedo floats to the water surface to be recovered, the recovery time is prolonged when the environmental condition is severe, and the fact that whether the floating bag can keep normal working pressure for a long time is particularly important. In addition, the pressure data after the floating bag is expanded is obtained, whether a safety valve arranged on the floating bag is opened or closed according to the design requirement can be judged, and a basis is provided for the design of the safety valve.
Currently, the torpedo bag pressure detection for the end of training is carried out in a cabin state: the whole mine is decomposed, the simulated warfare section is split, and the pressure of the floating bag is determined through a tee joint on a floating bag air supply pipeline. The detection mode has the problems that direct detection cannot be carried out after fishing, detection must be carried out after the torpedo is transported back to a workshop and disassembled, and if the safety valve is not completely closed, the capsule pressure at the moment is reduced relative to that just coming after fishing, so that the detection accuracy is influenced; in addition, some data reading must be performed in a full-torpedo state after torpedo training is finished, so that the detection of the bag pressure can only be performed after the data reading is finished, and the accuracy of the bag pressure data detection is further influenced.
Disclosure of Invention
The technical problem solved by the invention is as follows: in order to solve the defect that the measurement is inaccurate because the capsule pressure detection needs to be carried out by decomposing the whole torpedo and the related data is read after the torpedo training is finished in the prior art, the invention provides the capsule pressure detection device and the detection method under the state of the whole torpedo, which can directly detect the torpedo after the torpedo is recovered, do not need to decompose the whole torpedo, and have simple structure and convenient detection.
The technical scheme of the invention is as follows: a capsule pressure detection device in a full thunder state comprises a shell, a joint, a screw, a cover plate, a pull rod, a floating capsule mounting seat and a safety valve assembly;
the two ends of the shell are open, the interior of the shell is a hollow cavity, and one end of the shell is provided with an internal thread;
an external thread is formed at one end of the floating bag mounting seat, the external thread of the floating bag mounting seat is matched and fixedly connected with the internal thread of the shell, and the safety valve component is positioned in the floating bag mounting seat;
the cover plate is provided with two through holes; when the cover plate is fixedly connected with the other end of the shell, the two through holes are communicated with the cavity of the shell;
the pull rod is positioned in the cavity chamber of the shell, one end of the pull rod is connected with the safety valve component, the other end of the pull rod penetrates through one through hole of the shell, and the through hole is positioned in the center of the shell and is in threaded connection with the screw;
one end of the joint is fixedly connected with the cover plate; the joint is provided with a through hole which is communicated with the other through hole on the cover plate.
The technical scheme of the invention is as follows: the shell is a cylindrical body, and the outer wall of the shell is in a multi-step shape; after being connected with the floating bag installation seat, the floating bag installation seat is sealed through a sealing gasket.
The technical scheme of the invention is as follows: the safety valve assembly comprises a valve body, a valve rod, a spring, a bushing and a guide sleeve; wherein the valve rod, the spring, the bushing and the guide sleeve are coaxially arranged; one end of the valve body is provided with a through hole along the axis, and the other end of the valve body is in threaded connection with the guide sleeve; the outer wall of the bushing is in interference fit with the outer wall of the guide sleeve, and the bushing is sleeved on the valve rod and is in clearance fit with the valve rod; one end of the valve rod is axially provided with a threaded hole for fixedly connecting with the pull rod, and the other end of the valve rod is propped against the bottom of the valve body and is sealed by a sealing gasket; the spring sleeve is on the valve rod, and one end top is on the uide bushing, and the uide bushing compresses tightly the spring of free state, and the other end top is on the valve rod, and spring original state is compression energy storage state.
The technical scheme of the invention is as follows: the gasket is increased or decreased to change the rigidity of the spring so as to adjust the opening and closing pressure of the safety valve; one side of the gasket is contacted with the guide sleeve, and the other side is contacted with the spring.
The technical scheme of the invention is as follows: the cover plate is used for enabling the axis of the through hole, the axis of the shell and the axis of the pull rod to penetrate through the pull rod to coincide with the axis of the valve rod.
The technical scheme of the invention is as follows: and after the cover plate is connected with one end (the end face with the large diameter end) of the shell which is not provided with the internal thread, the cover plate is fixedly connected with the end face through an O-shaped sealing ring.
The technical scheme of the invention is as follows: the screw connected with the pull rod is provided with a pull ring which is convenient for pulling the pull rod so as to drive the valve rod of the safety valve component to move upwards.
The technical scheme of the invention is as follows: the whole connector is a cylindrical body, a through hole is formed along the axis, and the connector is connected with the cover plate through 4 screws.
The technical scheme of the invention is as follows: the pull rod and the cover plate are sealed through an O-shaped sealing ring.
The technical scheme of the invention is as follows: a detection method of a capsule pressure detection device in a full thunder state comprises the following steps:
step 1: preparation: before measurement, a pipeline is connected to one end of the joint, which is not connected with the cover plate, and a pressure gauge is connected to the pipeline;
step 2: the floating bag mounting seat is connected with the shell, and a valve rod in the safety valve assembly is connected with the pull rod;
and step 3: manually pulling a screw on the pull rod, and enabling the pull rod to move upwards along the axis;
and 4, step 4: the pull rod drives the valve rod to move upwards along the axis, the spring is compressed, and gas enters from the bottom of the floating bag mounting seat;
and 5: after entering a shell cavity through the floating bag mounting seat, the gas sequentially passes through the cover plate through hole and the joint through hole and then enters a pipeline, and the reading of a pressure gauge on the pipeline is the pressure of the floating bag at the moment;
and 6: when the bag pressure is lower than the closing pressure of the safety valve component, the valve rod closes the safety valve component under the action of the spring, and the floating bag stops releasing pressure.
Effects of the invention
The invention has the technical effects that:
(1) The external thread is added on the floating bag mounting seat, so that the improved floating bag mounting seat is connected with the shell of the detection device through the external thread; the increase of the external thread on the floating bag mounting seat does not need to detach the mounting seat from the floating bag, the existing floating bag can be directly improved, and the strength of the mounting seat and the working performance of the floating bag cannot be influenced after the improvement;
(2) The detection device directly measures on the floating bag, and the bag pressure is not lost additionally in the detection process, so that the pressure of the floating bag can be accurately read; the conventional detection method is realized by measuring a tee joint on a floating bag air supply pipeline in a cabin section state, the floating bag has certain pressure loss, and the detection on a high-pressure pipeline has certain safety risk;
(3) The device is simple and convenient to detect, does not need to disassemble the whole mine, has no additional requirement on the detection environment, can be carried out on the mine fishing vessel, and saves hours of detection time compared with the conventional method.
Drawings
FIG. 1: schematic view of a bladder mount prior to modification.
FIG. 2 is a schematic diagram: a modified float bladder mount schematic.
FIG. 3: the structure schematic diagram of the bag pressure detection device.
FIG. 4 is a schematic view of a safety valve assembly
Description of the reference numerals: 1-a shell; 2-a first O-ring seal; 3-a screw; 4-a second O-ring seal; 5-a linker; 6-cover plate; 7-a pull rod; 8-a sealing gasket; 9-floating bag mounting seat; 10-a safety valve assembly; 10-1-valve stem; 10-2-spring; 10-3-a liner; 10-4-a guide sleeve; 10-5-pad.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Referring to fig. 1-4, the technical scheme is that the capsule pressure detection device under the full thunder state mainly comprises a shell, a cover plate, a joint, a pull rod, a screw, an O-shaped sealing ring and the like. In order to realize the detection of the capsule pressure without decomposing the whole mine, the existing floating capsule mounting seat is modified, and an external thread is added, which is shown in the figure 1 and the figure 2. The modified floating bag mounting seat is connected with the shell of the detection device through external threads, one end of a pull rod is connected with a threaded hole of a safety valve rod, the other end of the pull rod is connected with a cover plate through radial sealing, the safety valve rod is driven through the pull rod to enable the safety valve to be opened, and gas in the bag enters a cavity through the safety valve to realize bag pressure detection.
The embodiment is a process of detecting the bag pressure in the full thunder state.
In the full mine condition, the valve assembly 10 and the float bladder mounting 9 are attached to the float bladder. After the torpedo training finishes surfacing, on will screwing casing 1 to floating bag mount pad 9, realize sealing through sealed pad 8, pass through the radial sealing connection of second O shape sealing washer 4 with 7 one ends of pull rod (screw hole end) and apron 6, the other end (external screw thread end) is connected with the screw hole of relief valve 10 valve rod, screw 3 is twisted on the screw hole of pull rod 7, through the screw fastening between apron 6 and the casing 1, utilize first O shape sealing washer 2 to seal, connect 5 through the fix with screw on apron 6.
Before measurement, a pipeline is connected to the joint 5, and a pressure gauge is connected to the pipeline. When in measurement, the screw 3 on the pull rod 7 is pulled outwards to drive the valve rod 10-1 of the safety valve 10 to move axially, so that the safety valve is opened. The gas in the air bag enters the valve body through a through hole at one end of the valve body and then sequentially passes through the shell cavity and the joint cavity, and the reading of the pressure gauge on the pipeline is the pressure of the floating air bag at the moment.
Claims (10)
1. The capsule pressure detection device under the full thunder state is characterized by comprising a shell, a joint, a screw, a cover plate, a pull rod, a floating capsule mounting seat and a safety valve assembly;
the two ends of the shell are open, the interior of the shell is a hollow cavity, and one end of the shell is provided with an internal thread;
an external thread is formed at one end of the floating bag mounting seat, the external thread of the floating bag mounting seat is matched and fixedly connected with the internal thread of the shell, and the safety valve component is positioned in the floating bag mounting seat;
the cover plate is provided with two through holes; when the cover plate is fixedly connected with the other end of the shell, the two through holes are communicated with the cavity of the shell;
the pull rod is positioned in the cavity chamber of the shell, one end of the pull rod is connected with the safety valve component, the other end of the pull rod penetrates through one through hole of the shell, and the through hole is positioned in the center of the shell and is in threaded connection with the screw; one end of the valve rod is axially provided with a threaded hole for fixedly connecting with the pull rod;
one end of the joint is fixedly connected with the cover plate; the joint is provided with a through hole which is communicated with the other through hole on the cover plate; the end of the joint which is not connected with the cover plate is connected with a pipeline, and the pipeline is connected with a pressure gauge.
2. The apparatus according to claim 1, wherein the casing is a cylindrical body, and the outer wall is multi-step; after being connected with the floating bag installation seat, the floating bag installation seat is sealed through a sealing gasket.
3. The capsule pressure detection device under the full thunder state as claimed in claim 1, wherein the safety valve assembly comprises a valve body, a valve rod, a spring, a bushing and a guide sleeve; wherein the valve rod, the spring, the bushing and the guide sleeve are coaxially arranged; one end of the valve body is provided with a through hole along the axis, and the other end of the valve body is in threaded connection with the guide sleeve; the outer wall of the bushing is in interference fit with the outer wall of the guide sleeve, and the bushing is sleeved on the valve rod and is in clearance fit with the valve rod; one end of the valve rod is axially provided with a threaded hole for fixedly connecting with the pull rod, and the other end of the valve rod is propped against the bottom of the valve body and is sealed by a sealing gasket; the spring sleeve is on the valve rod, and one end top is on the uide bushing, and the uide bushing compresses tightly the spring of free state, and the other end top is on the valve rod, and spring original state is compression energy storage state.
4. The capsule pressure detection device under the full thunder state according to claim 1, further comprising a gasket, wherein the increase or decrease of the gasket is used for changing the rigidity of a spring so as to adjust the opening and closing pressure of the safety valve; one side of the gasket is contacted with the guide sleeve, and the other side of the gasket is contacted with the spring.
5. The air bag pressure detection device under the full mine condition as claimed in claim 1, wherein the axis of the through hole for passing through the pull rod on the cover plate, the axis of the shell, and the axis of the pull rod coincide with the axis of the valve rod.
6. The apparatus according to claim 1, wherein the cover plate is fixedly connected to the end of the casing not provided with the internal thread by an O-ring.
7. The apparatus according to claim 1, wherein the screw connected to the pull rod has a pull ring for pulling the pull rod and thereby moving the valve stem of the safety valve assembly upward.
8. The capsule pressure detecting device under the full mine condition as claimed in claim 1, wherein the joint is a cylindrical body as a whole, a through hole is formed along an axis, and the joint and the cover plate are connected through 4 screws.
9. The capsule pressure detection device under the full mine condition as claimed in claim 1, wherein the pull rod and the cover plate are sealed by an O-shaped sealing ring.
10. The detection method of the capsule pressure detection device under the full mine state is characterized by comprising the following steps of:
step 1: preparation work: before measurement, a pipeline is connected to one end of the joint, which is not connected with the cover plate, and a pressure gauge is connected to the pipeline;
step 2: the floating bag mounting seat is connected with the shell, and a valve rod in the safety valve assembly is connected with the pull rod;
and step 3: manually pulling a screw on the pull rod, and enabling the pull rod to move upwards along the axis;
and 4, step 4: the pull rod drives the valve rod to move upwards along the axis, the spring is compressed, and gas enters from the bottom of the floating bag mounting seat;
and 5: after entering a shell cavity through the floating bag mounting seat, the gas sequentially passes through the cover plate through hole and the joint through hole and then enters a pipeline, and the reading of a pressure gauge on the pipeline is the pressure of the floating bag at the moment;
step 6: when the bag pressure is lower than the closing pressure of the safety valve component, the valve rod closes the safety valve component under the action of the spring, and the floating bag stops releasing pressure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011575422.3A CN112649189B (en) | 2020-12-28 | 2020-12-28 | Capsule pressure detection device and detection method under full lightning state |
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| CN202011575422.3A CN112649189B (en) | 2020-12-28 | 2020-12-28 | Capsule pressure detection device and detection method under full lightning state |
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| CN112649189A CN112649189A (en) | 2021-04-13 |
| CN112649189B true CN112649189B (en) | 2023-02-21 |
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| CN114264470A (en) * | 2021-12-07 | 2022-04-01 | 西安精密机械研究所 | Device and method for detecting opening and closing pressure of safety valve under high back pressure |
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