Rapid pressure reduction system

Abstract

The utility model discloses a rapid pressure reduction system which comprises a blasting laboratory, a butterfly valve, a second blasting device, a negative pressure storage tank, an adjusting device used for adjusting the size of a blasting channel, a first blasting device and a vacuum equipment box used for vacuumizing the negative pressure storage tank. Two pipelines are connected between the blasting laboratory and the negative pressure storage tank, one pipeline is a short pipeline, and the other pipeline is a long pipeline; the butterfly valve and the second blasting device are installed on the short pipeline, and the butterfly valve is located between the blasting laboratory and the second blasting device. The adjusting device and the first blasting device are installed on the long pipeline, and the first blasting device is located between the blasting laboratory and the adjusting device. The utility model is simple and practical, occupies small space, and is convenient to combine and use; the rapid blasting experiment and the top-speed blasting experiment of small animals and small products are met, and the control mode is simple, stable and reliable; the cost of experimental equipment is reduced; the device is high in practicability, safe to use and particularly suitable for popularization and application.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of blasting decompression experiment, specifically relates to a rapid decompression system, be applicable to small low pressure blast vessel, can simulate a high altitude environment rapid decompression and the state of blast decompression experiment, be used for the research of physiological, characteristic etc. change of animal, micro - small parts product under different natural environment after a period of time, extremely fast pressure loss, as the necessary experimental apparatus and equipment of animal medical research, plateau, high altitude product research, be applicable to scientific research unit. BACKGROUND

[0002] The existing decompression device on the market is all large experimental equipment, and the construction cost and operation cost are extremely high, which is not conducive to small equipment research and development and high altitude biological field research. UTILITY MODEL CONTENT

[0003] To solve the above problems, the purpose of the utility model is to provide a rapid decompression system that can meet the rapid blast experiment and extremely rapid blast experiment of small animals and small products.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] A rapid decompression system, comprising a blast laboratory, a butterfly valve, a blast device two, a negative pressure storage tank, an adjusting device for adjusting the size of a blast passage, a blast device one, and a vacuum equipment box for vacuumizing the negative pressure storage tank; two pipelines are connected between the blast laboratory and the negative pressure storage tank, one of which is a short pipeline and the other is a long pipeline; the butterfly valve and the blast device two are installed on the short pipeline, and the butterfly valve is located between the blast laboratory and the blast device two; the adjusting device and the blast device one are installed on the long pipeline, and the blast device one is located between the blast laboratory and the adjusting device. The blast device one and the blast device two both comprise a pressing device, a blasting piece, an impact device, and a pressure-bearing shell; the pressure-bearing shell has a hollow structure with two open ends; the blasting piece is made of a pressure-resistant fragile material and is detachably installed in the pressure-bearing shell to divide the inside of the pressure-bearing shell; the pressing device comprises a plurality of pressing plates, one end of each pressing plate is fixed inside the pressure-bearing shell, and the other end is pressed on the blasting piece; the impact device is installed in the pressure-bearing shell and corresponds to the position of the blasting piece, and the impact device can move towards the blasting piece under the action of external force to break the blasting piece.

[0006] The pressure-bearing shell of the blast device one is in the shape of a pipeline, and the blasting piece is blocked in the middle of the pressure-bearing shell thereof; the pressure-bearing shell of the blast device two is in the shape of a square box, and the blasting piece is blocked at the opening of the pressure-bearing shell near the negative pressure storage tank.

[0007] In actual use, the rapid decompression system is also equipped with an emergency alarm buzzer, pressure sensor indicator light, control system, and UPS uninterruptible power supply, all of which are commonly used electronic devices in the prior art. When applied to this utility model, it is sufficient to meet the safety and usage requirements of the product. When the product malfunctions, the emergency alarm buzzer will sound an alarm, and the experimental personnel can promptly handle the different situations that occur.

[0008] This invention has two modes: a rapid blasting mode, in which air pressure balance is achieved within a blasting laboratory within a blasting time of 1 to 1.5 seconds, with an air pressure height range of 6000 to 10000 m; and an ultra-rapid blasting mode, in which air pressure balance is achieved within a blasting device two within a blasting time of 200 ms, with an air pressure height range of 6000 to 10000 m.

[0009] The beneficial effects of this utility model are as follows:

[0010] This invention allows for selection of rapid decompression mode and explosive decompression mode for experiments, depending on requirements. A rapidly opening intermediate butterfly valve connects the two chambers (the explosive laboratory and the explosive device two). When the intermediate butterfly valve is closed, the two chambers can be used independently; when the valve is open, they can be used as a single chamber, providing a versatile experimental platform for scientific research. This invention employs a square structure with maximum space utilization, is simple and practical, occupies little space, and is convenient for combined use. It meets the requirements for rapid and ultra-rapid explosive experiments on small animals and small products, filling the gap in current miniaturized rapid pressure change experimental equipment and expanding the product's functional range. Furthermore, the control method is simple, stable, and reliable. It reduces the cost of experimental equipment and expands the types of experimental equipment available. Highly practical and safe to use, it is particularly suitable for widespread application. Attached Figure Description

[0011] The structure of this utility model will be further described in detail below with reference to the accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the rapid decompression system described in this utility model.

[0013] Figure 2 This is a schematic diagram of the pipeline of the rapid pressure reduction system described in this utility model.

[0014] Figure 3 This is a schematic diagram of the second blasting device in the rapid decompression system of this utility model.

[0015] Figure 4 This is a schematic diagram of the vacuum equipment box in the rapid decompression system of this utility model.

[0016] The diagram shows: 1-Explosion laboratory, 2-Butterfly valve, 3-Explosion device II, 4-Negative pressure storage tank, 5-Regulating device, 6-Explosion device, 7-Vacuum equipment box, 71-Vacuum pump, 72-Check valve, 73-Frequency converter, 74-Box body, 8-Pressure clamping device, 9-Explosive component, 10-Impact device, 11-Pressure-bearing shell, 12-Inflation pipeline I, 13-Inflation pipeline II. Detailed Implementation

[0017] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. The described embodiments are merely some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0019] In the description of this utility model, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. It should be noted that the terms "comprising," "including," or any other variations are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Example 1

[0020] like Figure 1As shown, this embodiment provides a rapid pressure reduction system, including a blasting laboratory 1, a butterfly valve 2, a second blasting device 3, a negative pressure storage tank 4, a regulating device 5, a first blasting device 6, a vacuum equipment box 7, matching pipe fittings, and a control system, etc.

[0021] The blasting laboratory 1 is a square, hollow chamber made of steel plate used for pressure vessels, then powder-coated for corrosion protection. A pressure gauge is attached to it. Test animals or product parts are placed inside the blasting laboratory 1 for testing. One side of the blasting laboratory 1 is connected to the negative pressure storage tank 4 via a short pipe, and the other side is connected to the negative pressure storage tank 4 via a long pipe. The blasting laboratory 1, negative pressure storage tank 4, regulating device 5, and blasting device 6 together constitute the basic functional structure of the rapid blasting device in rapid blasting mode. A butterfly valve 2 and blasting device 3 are installed on the short pipe, with butterfly valve 2 located between blasting laboratory 1 and blasting device 3. Regulating device 5 and blasting device 6 are installed on the long pipe, with blasting device 6 located between blasting laboratory 1 and regulating device 5. An inflation pipeline 12 is connected to the outside of the blasting laboratory 1 for filling the blasting laboratory 1 with gas. The inflation pipeline 12 pumps the gas from the gas source into the blasting laboratory 1 using an air pump. The inflation pipeline 12 is equipped with a manual valve, a solenoid valve and a flow meter, etc.

[0022] The butterfly valve 2 is an existing electric butterfly valve, which isolates the blasting laboratory 1 from the blasting device 2 3 during the experimental preparation stage, allowing different experiments to be conducted in the blasting laboratory 1 and the blasting device 2 3 respectively.

[0023] The second blasting device 3 is similar in structure to the first blasting device 6, both consisting of a clamping device 8, a blasting component 9, an impact device 10, and a pressure-bearing shell 11. The pressure-bearing shell 11 is a hollow structure with openings at both ends. In the first blasting device 6, the two openings of the pressure-bearing shell 11 are respectively connected to the blasting laboratory 1 and the adjusting device 5. In the second blasting device 3, the two openings of the pressure-bearing shell 11 are respectively connected to the blasting laboratory 1 and the second blasting device 3. The blasting component 9 is made of a pressure-resistant and brittle material (such as plexiglass) and is detachably installed inside the pressure-bearing shell 11 to partition the interior of the pressure-bearing shell 11. The clamping device 8 consists of multiple evenly distributed pressure plates. One end of each pressure plate is fixed inside the pressure-bearing shell 11 by bolts, and the other end is pressed against the blasting component 9. The impact device 10 is installed inside the pressure-bearing shell 11 and corresponds to the position of the blasting component 9. The impact device 10 can move towards the blasting component 9 under external force to shatter the blasting component 9. The impact device 10 includes a rotating shaft, a swing arm, an impact hammer, and a power device. The rotating shaft is rotatably installed inside the pressure-bearing housing 11. One end of the swing arm is fixedly connected to the rotating shaft and can move closer to or further away from the explosive component 9 as the rotating shaft rotates. The impact hammer is installed at the other end of the swing arm and can swing closer to or further away from the explosive component 9 as the swing arm moves. An impact pin is provided on the surface of the impact hammer used to break the explosive component 9. The power device is installed outside the pressure-bearing housing 11 and can drive the rotating shaft to rotate. The power device can be any one of a motor, hydraulic rod, cylinder, or electric cylinder. When a motor is used, meshing gears are installed on the rotating shaft and the motor respectively. When a hydraulic rod, cylinder, or electric cylinder is used, a push rod is vertically fixed outside the rotating shaft. The push rod is connected to the extension end of the hydraulic rod, cylinder, or electric cylinder, and the other end of the hydraulic rod, cylinder, or electric cylinder is hinged outside the pressure-bearing housing 11.

[0024] The pressure-bearing shell 11 of the second blasting device 3 is a square box-shaped structure made of steel plate used for pressure vessels, and then powder-coated for corrosion protection. The blasting component 9 of the second blasting device 3 is sealed at the opening of its pressure-bearing shell 11 near the negative pressure storage tank 4. The second blasting device 3, the negative pressure storage tank 4, and the blasting laboratory 1 together form the basic functional structure of the rapid blasting device in the rapid blasting mode. An inflation pipeline 2 13 is connected to the second blasting device 3 for inflating the pressure-bearing shell 11 of the second blasting device 3. The inflation pipeline 2 13 pumps the gas from the gas source into the pressure-bearing shell 11 of the second blasting device 3 using an air pump. The pressure-bearing shell 11 of the second blasting device 3 is equipped with a manual valve, a solenoid valve, and a flow meter, etc.

[0025] The pressure-bearing shell 11 of the first blasting device 6 is in the shape of a pipe, and its blasting element 9 is sealed in the middle of the pressure-bearing shell 11; the volume of the pressure-bearing shell 11 of the first blasting device 6 is smaller than the volume of the pressure-bearing shell 11 of the second blasting device 3. The blasting device 6 can be fully opened within 800ms to ensure that the air pressure of the medium-explosion laboratory 1 and the negative pressure storage tank 4 in the rapid blasting experiment reaches equilibrium within 1 to 1.5s.

[0026] The negative pressure storage tank 4 is a hollow tank made of steel plate used for pressure vessels and then sprayed with plastic for corrosion protection. A pressure gauge is installed on the negative pressure storage tank 4. The negative pressure storage tank 4 and the blasting laboratory 1 and the blasting device 2 3 are respectively set with sufficient volume ratio according to the experimental conditions to provide a stable negative pressure environment for the ultra-fast blasting device and the rapid blasting device during the experiment.

[0027] The adjustment device 5 is a valve structure used to adjust the size of the blasting channel, so as to ensure that the blasting time of the rapid blasting experiment can be adjusted between 1 and 1.5 seconds.

[0028] The vacuum equipment 7 is used to evacuate the negative pressure storage tank 4. The vacuum equipment box 7 is connected to the negative pressure storage tank 4 through a vacuum pipeline, and the low-pressure function inside the negative pressure storage tank is realized through a PLC system. The vacuum equipment box 7 includes a box body 74 and two sets of vacuuming systems installed inside the box body 74. The vacuuming system includes a vacuum pump 71, a check valve 72, and a frequency converter 73. The air inlet of the vacuum pump 71 is connected to the inside of the negative pressure storage tank 4 through a pipeline. The check valve 72 is installed on the pipeline connecting the vacuum pump 71 and the negative pressure storage tank 4, allowing gas to flow unidirectionally from the negative pressure storage tank 4 into the vacuum pump 71. The frequency converter 73 is installed inside the box body 74 to control the speed of the drive motor of the vacuum pump 71.

[0029] Working principle:

[0030] I. Rapid Detonation Experiment:

[0031] This experiment mainly utilizes the blasting laboratory 1, negative pressure storage tank 4, long pipeline and adjustment device 5 on the long pipeline, and blasting device 6 in the rapid blasting device under rapid blasting mode. The specific steps are as follows.

[0032] ① First, butterfly valve 2 is fully closed, and vacuum equipment 7 is used to pump the air pressure in negative pressure storage tank 4 to the set value and maintain the air pressure unchanged.

[0033] ② Next, place the experimental specimen or experimental animal inside the blasting laboratory 1, and then inflate the blasting laboratory 1 with air through the air inflator pipe 12 to adjust the air pressure inside the blasting laboratory 1 to the set height.

[0034] ③ After the air pressure in the blasting laboratory 1 and the negative pressure storage tank 4 has stabilized, set the valve opening of the regulating device 5 according to the experimental time requirements. After the regulating device 5 reaches the set value, start the power unit of the blasting device 6 to make the impact device 10 swing downward and break the blasting component 9, open the blasting device 6, and make the air pressure in the blasting laboratory 1 and the negative pressure storage tank 4 reach equilibrium within 1 to 1.5 seconds.

[0035] ④ After recording the experimental data, restore each part of the equipment to its pre-experiment state, and then turn off the experimental equipment;

[0036] II. Rapid Detonation Experiment:

[0037] This experiment mainly utilizes the blasting laboratory 1, negative pressure storage tank 4, short pipe and blasting device 2 on the short pipe in the ultra-rapid blasting mode. The specific steps are as follows.

[0038] ① First, fully open butterfly valve 2 and fully close adjustment device 5. Install the blasting component 9 in blasting device 2 3 and press it with clamping device 8. Adjust impact device 10 to experimental state (raise the impact hammer away from the blasting component 9).

[0039] ②Secondly, vacuum equipment 7 is used to pump the air pressure in negative pressure storage tank 4 to the set value and maintain the air pressure unchanged.

[0040] ③ Next, place the experimental specimen or experimental animal inside the blasting laboratory 1, and then inflate the blasting laboratory 1 with air through the air inflator pipe 12 to adjust the air pressure inside the blasting laboratory 1 to the set height.

[0041] ④ After the air pressure in the blasting laboratory 1 and the negative pressure storage tank 4 is highly stable, start the power unit of the blasting device 2 3, so that the impact device 10 swings downward and breaks the blasting component 9, and quickly open the blasting device 2 3, so that the air pressure in the blasting laboratory 1 and the negative pressure storage tank 4 reaches equilibrium within 200ms.

[0042] ⑤ After recording the experimental data, restore all parts of the equipment to their pre-experiment state, and then shut down the experimental equipment.

[0043] Other aspects of this utility model that are not detailed herein are all conventional techniques known to those skilled in the art.

[0044] It should be noted that the terms “comprising,” “including,” or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] The scope of protection of this utility model is not limited to the technical solutions disclosed in the specific embodiments. Any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the technical essence of this utility model shall fall within the scope of protection of this utility model.

Claims

1. A rapid decompression system, comprising a blasting laboratory (1), a butterfly valve (2), a second blasting device (3), a negative pressure storage tank (4), an adjusting device (5) for adjusting the size of the blasting channel, a first blasting device (6), and a vacuum equipment box (7) for evacuating the negative pressure storage tank (4), characterized in that: Two pipes connect the blasting laboratory (1) and the negative pressure storage tank (4), one of which is a short pipe and the other is a long pipe; the butterfly valve (2) and the second blasting device (3) are installed on the short pipe, wherein the butterfly valve (2) is located between the blasting laboratory (1) and the second blasting device (3); the regulating device (5) and the first blasting device (6) are installed on the long pipe, wherein the first blasting device (6) is located between the blasting laboratory (1) and the regulating device (5).

2. The rapid decompression system according to claim 1, characterized in that: The blasting laboratory (1) is a square cabin.

3. The rapid decompression system according to claim 1, characterized in that: Both the first blasting device (6) and the second blasting device (3) include a clamping device (8), a blasting component (9), an impact device (10), and a pressure-bearing shell (11). The pressure-bearing shell (11) is a hollow structure with openings at both ends. The blasting component (9) is made of a pressure-resistant and brittle material and is detachably installed inside the pressure-bearing shell (11) to partition the interior of the pressure-bearing shell (11). The clamping device (8) consists of multiple pressure plates, one end of which is fixed inside the pressure-bearing shell (11), and the other end is pressed against the blasting component (9). The impact device (10) is installed inside the pressure-bearing shell (11) and corresponds to the position of the blasting component (9). The impact device (10) can move towards the blasting component (9) under the action of external force to shatter the blasting component (9).

4. The rapid decompression system according to claim 3, characterized in that: The pressure-bearing shell (11) of the first blasting device (6) is in the shape of a pipe, and its blasting component (9) is sealed in the middle of its pressure-bearing shell (11); the pressure-bearing shell (11) of the second blasting device (3) is in the shape of a square box, and its blasting component (9) is sealed at the opening of its pressure-bearing shell (11) near the negative pressure storage tank (4).

5. The rapid decompression system according to claim 4, characterized in that: The volume of the pressure-bearing shell (11) of the first blasting device (6) is smaller than the volume of the pressure-bearing shell (11) of the second blasting device (3).

6. The rapid decompression system according to claim 4, characterized in that: Pressure gauges are installed on the blasting laboratory (1), the blasting device 2 (3), and the negative pressure storage tank (4).

7. The rapid decompression system according to claim 3, characterized in that: The impact device (10) includes a rotating shaft, a swing arm, an impact hammer, and a power device; the rotating shaft is rotatably installed inside the pressure-bearing housing (11); one end of the swing arm is fixedly connected to the rotating shaft and can move closer to or further away from the explosive component (9) as the rotating shaft rotates; the impact hammer is installed at the other end of the swing arm and can swing closer to or further away from the explosive component (9) as the swing arm moves; the power device is installed outside the pressure-bearing housing (11) and can drive the rotating shaft to rotate.

8. The rapid decompression system according to claim 7, characterized in that: The power device can be any one of an electric motor, a hydraulic rod, a pneumatic cylinder, or an electric cylinder.

9. The rapid decompression system according to claim 7, characterized in that: An impact pin is provided on the surface of the impact hammer used to break the explosive component (9).

10. The rapid decompression system according to claim 1, characterized in that: The vacuum equipment box (7) includes a box body (74) and at least one vacuum system installed inside the box body (74); the vacuum system includes a vacuum pump (71), a check valve (72) and a frequency converter (73); the inlet of the vacuum pump (71) is connected to the inside of the negative pressure storage tank (4) through a pipe; the check valve (72) is installed on the pipe connecting the vacuum pump (71) and the negative pressure storage tank (4), and the gas flows into the vacuum pump (71) from the negative pressure storage tank (4) in one direction; the frequency converter (73) is installed inside the box body (74) to control the speed of the drive motor of the vacuum pump (71).

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