CN111665018B - Deep sea pressure simulation test device - Google Patents
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- CN111665018B CN111665018B CN202010549209.9A CN202010549209A CN111665018B CN 111665018 B CN111665018 B CN 111665018B CN 202010549209 A CN202010549209 A CN 202010549209A CN 111665018 B CN111665018 B CN 111665018B
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Abstract
The invention discloses a deep sea pressure simulation test device, which belongs to the technical field of test equipment for simulating deep sea environment and comprises a pressure cylinder, a quick-adjustment hydraulic cylinder, a buffer tank, a pressure relief tank and a fine-adjustment hydraulic cylinder; the hydraulic cylinder is characterized in that a quick adjusting hydraulic cylinder is arranged in front of the pressure cylinder, a buffer tank is arranged on the right side of the pressure cylinder, a pressure relief tank is arranged on the right side of the buffer tank, and a fine adjusting hydraulic cylinder is arranged behind the pressure cylinder. The invention is scientific and reasonable, is safe and convenient to use, is provided with the quick-adjustment hydraulic cylinder and the fine-adjustment hydraulic cylinder, saves time, ensures the accuracy of pressurization in the pressure cylinder, and avoids waste of water resources; the cavity structure of the pressure cylinder is beneficial to reminding people of the position and the amount of deformation of the inner layer, so that the occurrence of danger is avoided, and the test accuracy is improved; the buffer tank is favorable to the buffering to get into the pressure of the water in the release jar, improves the use number of times of release jar, and the buffer tank is favorable to the water cyclic utilization after will testing, and save time and first motor drive the required electric energy of fast speed adjusting pressure tank function.
Description
Technical Field
The invention relates to the technical field of test equipment for simulating deep sea environment, in particular to a deep sea pressure simulation test device.
Background
With the development of human society, the development and utilization of various resources are increased. Today, with the scarcity of land resources, people are looking at the deep ocean. The seabed world has abundant resources, and the reserves of natural gas hydrates are huge. It is estimated that the total organic carbon content of natural gas hydrate cannot be half of that of petroleum, coal and natural gas which are used by human beings and have not been developed, and the total organic carbon content of natural gas hydrate can become new energy in the new century in the future with the extension of research. The ocean resources are developed and utilized completely, but the ocean environment is complex and special, the depth of the sea bottom is large, and environmental factors such as miscellaneous terrain, ocean current and pressure increase the complexity of research on the deep sea environment by scientists. In order to enable deep sea environment research to be deeper and the resource utilization rate to be higher, people need to simulate the deep sea environment, the deep sea environment with different requirements can be examined in a mode of simulating seabed pressure at different depths, and experimental equipment for simulating the pressure environment of the deep sea environment is important. At present, the pressure of the deep sea environment is mostly simulated by adopting an autoclave, but the autoclave has high cost and more defects.
The existing deep sea pressure simulation test device mainly uses a hydraulic cylinder and a piston to pressurize the pressure cylinder, and only one hydraulic cylinder is provided; if the pressure increase range of each time is large, the pressure can be quickly increased to a required pressure value, but the large pressure increase range can cause the insufficient accuracy of the pressure value, and if the pressure increase is higher than the experimental pressure value, the pressure release is needed, so that the steps are complicated and water resources are wasted; if the magnitude of each pressurization is small, it takes more time to reach the required pressure value, and the waiting time is long. Secondly, the ultra-high pressure in the pressure cylinder makes the inner wall of the pressure cylinder have the risk of deformation, and the existing device can not find the tiny deformation of the pressure cylinder in time. The deformation results in the inconsistent pressure value that adjusts and required pressure value, leads to the experiment precision not enough, and the deformation of a plurality of points can increase the possibility that the pressure cylinder harms, brings the potential danger. Finally, the existing deep sea pressure simulation test device directly releases pressure by using a pressure release valve and a pressure release tank after the experiment is finished, the tested water resource cannot be reused, and the pressure release tank is damaged due to the previous large pressure. Therefore, a deep sea pressure simulation test device is required to solve the above problems.
Disclosure of Invention
The invention aims to provide a deep sea pressure simulation test device to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a deep sea pressure simulation test device comprises a pressure cylinder, a quick adjusting hydraulic cylinder, a buffer tank, a pressure relief tank and a fine adjusting hydraulic cylinder; the hydraulic cylinder is characterized in that a quick adjusting hydraulic cylinder is arranged in front of the pressure cylinder, a buffer tank is arranged on the right side of the pressure cylinder, a pressure relief tank is arranged on the right side of the buffer tank, and a fine adjusting hydraulic cylinder is arranged behind the pressure cylinder.
The pressure in the pressure cylinder can be adjusted according to the test requirements, and different tests can be favorably met. The pressure cylinder is in a normal pressure state before water is injected into the pressure cylinder. The first piston in the quick-adjustment hydraulic cylinder is large in size, and the amount of water pressed into the pressure cylinder from the first water tank is large in each movement, so that the large-amplitude adjustment in the initial period of pressure adjustment is facilitated, and the time is saved; the quick adjustment buffer tank is beneficial to storing water released after a test for secondary utilization, buffering the impact of pressure received by the pressure release tank and prolonging the service time of the pressure release tank; the buffer tank is connected with a vacuum pump, and can be in a vacuum state when needed. The pressure relief tank is beneficial to relieving the high pressure in the pressure cylinder; the second piston is small in size in the fine adjustment hydraulic cylinder, and the amount of water pressed into the pressure cylinder from the second water tank in each movement is small, so that the pressure in the pressure cylinder is adjusted accurately, and the accuracy of an adjustment test is facilitated. The pressure gauge is arranged on the pressure cylinder and can display the pressure value in the cylinder.
Preferably, the pressure cylinder is of a double-layer cavity structure; a first piston is arranged in the quick adjusting hydraulic cylinder, one end of the first piston penetrates through the quick adjusting hydraulic cylinder and is connected with a connecting rod, the other end of the connecting rod is connected with a first eccentric wheel, the first eccentric wheel is connected with a first motor through a driving shaft, a first water tank is arranged on one side of the quick adjusting hydraulic cylinder, and an air supply pipe is arranged above the quick adjusting hydraulic cylinder; the upper part of the left side of the buffer tank is connected with the inside of the pressure cylinder through a buffer water storage pipe, and a flow dividing device is arranged inside the buffer tank connected with the buffer water storage pipe; a fourth electromagnetic valve is arranged at one end, close to the buffer tank, of the buffer water storage pipe, the lower side of the left side of the buffer tank is connected with the inside of the pressure cylinder through a return pipe, and a fifth electromagnetic valve is arranged at one end, close to the buffer tank, of the return pipe; the left side of the pressure relief tank is connected with the inside of the buffer tank through a pressure relief pipe, the right end of the pressure relief pipe is provided with a pressure relief valve, and a drain pipe is connected below the right side of the pressure relief tank; the inside second piston that is equipped with of fine tuning pneumatic cylinder, second piston one end runs through the fine tuning pneumatic cylinder and is connected with the connecting rod, the connecting rod other end links to each other with the second eccentric wheel, the second eccentric wheel passes through the actuating shaft with the second motor and is connected, fine tuning pneumatic cylinder one side is equipped with the second water tank.
The double-layer cavity structure is beneficial to timely finding that the pressure cylinder deforms, the test accuracy is improved, and the risk of a high-pressure test is reduced. The first piston reciprocates to press water in the first water tank into the pressure cylinder from the quick adjusting hydraulic cylinder; the first eccentric wheel is beneficial to the reciprocating motion of the first piston, and the first motor provides energy for the reciprocating motion of the first piston; the first water tank is used for storing water. And when the inner layer of the pressure cylinder deforms after the pressurized water injection is finished, the air supply pipe injects air generated by the reciprocating motion of the first piston into the cavity structure of the pressure cylinder. After the experiment, the buffering water storage pipe is favorable to transmitting the water in the pressure cylinder to the pressure relief tank, and the diverging device divides the high-pressure water column to reduce the impact of the high-pressure water column to the buffer tank, avoid the buffer tank to topple over after receiving high-pressure striking, also avoid long-time high-pressure water column striking to lead to the buffer tank wall to warp. The return pipe is beneficial to the water stored in the pressure relief tank to flow back to the pressure cylinder; the fourth electromagnetic valve and the fifth electromagnetic valve are controlled by the system, when water needs to be stored in the buffer tank, the fourth electromagnetic valve is opened, and the fifth electromagnetic valve is closed; when the buffer tank needs to inject water into the pressure cylinder, the fourth electromagnetic valve is closed, and the fifth electromagnetic valve is opened; the pressure relief pipe is beneficial to flowing into the pressure relief tank after water in the buffer tank is full; the drain pipe is favorable for draining water in the pressure relief tank. The second piston reciprocates, which is beneficial to pressing water in the second water tank into the pressure cylinder from the fine adjustment hydraulic cylinder; the second eccentric wheel is beneficial to the reciprocating motion of the second piston, and the second motor provides energy for the reciprocating motion of the second piston; the second water tank is used for storing water.
Preferably, the double-layer cavity structure sequentially comprises an LED lamp outer layer, a contact chip, a cavity, an induction metal sheet and a pressure cylinder inner layer from outside to inside; the outer surface of the LED lamp is provided with a plurality of LED lamps. The outer layer of the LED lamp is connected with the contact chip, and the induction metal sheet is connected with the inner layer of the pressure cylinder. The outer layer of the LED lamp is favorable for reminding people of the deformation position of the inner layer of the pressure cylinder by means of the luminous point, and the contact chip transmits a lamp-lighting signal to the outer layer of the LED lamp;
preferably, a plurality of probes are arranged in the cavity, the probes are connected with the contact chip, and the probes are close to the induction metal sheet. When the contact chip is connected with the probe, the contact chip successfully transmits a light-up signal to the outer layer of the LED lamp, and the LED lamp is turned on.
Preferably, the cavity is connected with an air supply pipe, and a second electromagnetic valve is arranged at the connecting end of the air supply pipe and the quick adjusting hydraulic cylinder. The blast pipe is favorable for sending gas into the cavity, so that the pressure in the cavity is consistent with the pressure in the pressure cylinder, and the position where the pressure cylinder deforms is restored. The pressure in the cavity is consistent, so that the probe is not bent. Under the control of the system, after the pressure in the cavity is enough to restore the deformation of the inner layer of the pressure cylinder, the second electromagnetic valve is closed to keep the pressure in the cavity.
Preferably, one side of each of the fast adjusting hydraulic cylinder and the fine adjusting hydraulic cylinder is connected with the pressure cylinder through a booster pipe, and one side of each of the booster pipes, which is close to the pressure cylinder, is provided with a first electromagnetic valve. The booster tube facilitates the flow of water into the pressure cylinder. Under the control of the system, after the pressure in the pressure cylinder is well regulated, the first electromagnetic valves are closed in sequence to ensure the pressure in the pressure cylinder.
Preferably, one side of first water tank and second water tank all is connected with fast pneumatic cylinder and accurate adjustment pneumatic cylinder through the water injection pipe respectively, the water injection pipe is close to fast pneumatic cylinder and accurate adjustment pneumatic cylinder one end and is equipped with the third solenoid valve. Under the control of the system, if the pressure in the pressure cylinder is adjusted, the third electromagnetic valves are closed in sequence, so that the water in the first water tank and the water in the second water tank are prevented from flowing out, and the water flows into the cavity in the later period when the air is injected into the cavity.
Preferably, the flow dividing device comprises a flow dividing column, a flow dividing branch, an injection head and a water depth sensor; the reposition of redundant personnel post is equipped with the reposition of redundant personnel aperture a plurality of, reposition of redundant personnel branch interval reposition of redundant personnel aperture is connected on reposition of redundant personnel post right side, and is a plurality of the injection head is located diverging device right side and below, depth of water inductor and buffer tank, injection head electric connection. The reposition of redundant personnel aperture does benefit to and decomposes into a plurality of water columns with the water column that flows out in the buffering retaining pipe to reduce the pressure of water column. The branch of the split flow enables the water column to flow to different channels, and the injection head is beneficial to the outflow of the water column. Depth of water inductor observable buffer tank water depth height, when the depth of water surpassed half the time, injection head automatically regulated direction for the play water direction is the directive aquatic, no longer toward buffer tank inner wall play water, reduces the impact of water to the buffer tank inner wall.
Preferably, be equipped with the deep bead in fast transfer pneumatic cylinder and the accurate pneumatic cylinder, can block gaseous flow direction, do benefit to gaseous entering cavity.
Preferably, the contact part of the buffer water storage pipe and the bottom of the pressure cylinder is a pointed end, and the contact part of the pressure relief pipe and the bottom of the pressure relief tank is a pointed end; the pointed end is beneficial to sucking water out of the pipe, and the buffer water storage pipe and the pressure relief pipe are prevented from being attached to the ground to form vacuum, so that drainage of a water body is not facilitated. The buffering water storage pipe and the pressure relief pipe are rubber hoses. The rubber hose can resist high pressure of water body.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention makes the pressure cylinder into a double-layer cavity structure. When the pressure cylinder inlayer takes place tiny deformation under the effect of pressure, although naked eye is invisible, when the outside outstanding deformation of inlayer, the response sheetmetal that the inlayer outside covered contacts with the probe in the cavity to make the contact chip that the probe is connected receive the signal, the outer corresponding partial light of LED lamp after the contact chip received the signal is favorable to reminding people's inlayer deformation position and how much. If a plurality of deformation positions exist, the pressure cylinder is prompted to need to be replaced, and danger is avoided. If the deformation place is few, then accessible piston reciprocating motion discharges the cavity with inside air, is favorable to making the inlayer reconversion under the condition with the same pressure value in the pressure cylinder to do benefit to the accuracy that improves the experiment. The double-layer cavity structure can also increase the use safety of the pressure cylinder, and if the inner side cracks under a high-pressure state, the outer layer can play a role in protection and buffering.
2. The invention adds a buffer tank in front of the pressure relief tank, and the water with higher pressure flows into the vacuum buffer tank first, and flows into the pressure relief tank to be discharged after filling the buffer tank. The buffer tank is favorable for buffering the pressure of water entering the pressure relief tank, the using times of the pressure relief tank are increased, and the buffer tank is favorable for storing tested water; when the test is needed next time, the water stored in the buffer tank can be directly injected into the pressure cylinder, so that water resources are saved, the water in the pressure cylinder is not required to be filled by the fast adjusting pressure cylinder first and then pressurized, time is saved, electric energy required by the operation of the fast adjusting pressure cylinder driven by the first motor is saved, and the test is green and environment-friendly. Simultaneously, the buffer tank inner wall is equipped with diverging device with buffering water storage tank junction, can shunt the high-pressure water column to reduce the impact of high-pressure water column to the buffer tank, avoid the buffer tank to receive high pressure striking back and empty, also avoid long-time high-pressure water column striking to lead to the buffer tank wall to warp.
3. The invention is provided with two pressure valves, a fast adjusting hydraulic cylinder and a fine adjusting hydraulic cylinder, wherein the fast adjusting hydraulic cylinder is firstly used for adjusting the pressure in the pressure cylinder to be lower than the required experimental pressure in a large range, and then the fine adjusting hydraulic cylinder is used for adjusting the pressure in the pressure cylinder to be the required experimental pressure in a small range; avoid the big pressure value that leads to the pressurized value to be higher than the experiment of pressurization range, avoid carrying out the release to the pressure cylinder, also can avoid the pressurized range little so that reach required pressure value and can spend more time, guaranteed the accurate degree of pressurization in to the pressure cylinder when save time, also can avoid the waste to the water resource simultaneously.
Drawings
FIG. 1 is a schematic perspective view of a deep sea pressure simulation test device according to the present invention;
FIG. 2 is a schematic top view of a deep sea pressure simulation test device according to the present invention;
FIG. 3 is a schematic diagram of a left side connection section of a first hydraulic cylinder of the deep sea pressure simulation test device according to the present invention;
FIG. 4 is a schematic diagram of a connecting section structure of a pressure cylinder, a buffer tank and a pressure relief tank of the deep sea pressure simulation test device;
FIG. 5 is a schematic diagram of a top view structure of a pressure cylinder of the deep sea pressure simulation test device of the present invention;
FIG. 6 is a schematic diagram of a sectional structure of a pressure cylinder of a deep sea pressure simulation test device according to the present invention;
FIG. 7 is a schematic sectional view of a flow divider of the deep sea pressure simulation test device of the present invention.
Reference numbers in the figures: 1. a pressure cylinder; 2. an outer layer of the LED lamp; 3. contacting the chip; 4. a cavity; 5. an induction metal sheet; 6. an inner layer of the pressure cylinder; 7. a fast adjusting hydraulic cylinder; 8. a first piston; 9. a pressure boosting pipe; 10. a first solenoid valve; 11. a second solenoid valve; 12. an air supply pipe; 13. a wind deflector; 14. a connecting rod; 15. a first eccentric wheel; 16. a first motor; 17. a water injection pipe; 18. a third electromagnetic valve; 19. a first water tank; 20. a buffer tank; 21. a pressure relief tank; 22. a buffer water storage pipe; 23. a fourth solenoid valve; 24. a return pipe; 25. a pressure relief pipe; 26. a pressure relief valve; 27. a drain pipe; 28. fine adjustment of the hydraulic cylinder; 29. a second water tank; 30. a second piston; 31. a second eccentric wheel; 32. a second motor; 33. a flow divider; 33-1, a splitter column; 33-2, a shunting branch; 33-3, an injection head; 33-4, water depth sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): as shown in fig. 1-7, the deep sea pressure simulation test device comprises a pressure cylinder 1, a quick adjusting hydraulic cylinder 7, a buffer tank 20, a pressure relief tank 21 and a fine adjusting hydraulic cylinder 28; the pressure in the pressure cylinder 1 can be adjusted according to the test requirements so as to meet different tests; the pressure cylinder 1 is in a normal pressure state before water is injected into the pressure cylinder; a quick adjusting hydraulic cylinder 7 is arranged in front of the pressure cylinder 1, a first piston 8 in the quick adjusting hydraulic cylinder 7 is large in size, and the amount of water pressed into the pressure cylinder 1 from a first water tank 19 is large during each movement, so that the quick adjusting hydraulic cylinder is used for large-amplitude adjustment during the initial pressure adjusting period, and the time is saved; the right side of the pressure cylinder 1 is provided with a buffer tank 20 for storing water released after a test for secondary utilization, and the buffer tank 20 is favorable for buffering the impact of pressure received by the pressure release tank 20 and prolonging the service time of the pressure release tank 20; the buffer tank 20 is connected with a vacuum pump, and the interior of the buffer tank 20 can be changed into a vacuum state when needed; the right side of the buffer tank 20 is provided with a pressure relief tank 21 for relieving the high pressure in the pressure cylinder 1; the fine tuning pneumatic cylinder 28 is arranged behind the pressure cylinder 1, the second piston 30 in the fine tuning pneumatic cylinder 28 is small in size, the amount of water pressed into the pressure cylinder 1 from the second water tank 29 in each movement is small, so that the pressure in the pressure cylinder 1 is adjusted accurately, and the accuracy of an adjusting test is facilitated. The pressure gauge is arranged on the pressure cylinder 1 and can display the pressure value in the cylinder.
The pressure cylinder 1 is of a double-layer cavity structure, so that the pressure cylinder 1 can be timely found to deform, the test accuracy is improved, and the risk of a high-pressure test is reduced; a first piston 8 is arranged in the quick adjusting hydraulic cylinder 7, and the first piston 8 reciprocates, so that water in the first water tank 19 is favorably pressed into the pressure cylinder 1 from the quick adjusting hydraulic cylinder 7; one end of a first piston 8 penetrates through the quick adjusting hydraulic cylinder 7 and is connected with a connecting rod 14, the other end of the connecting rod 14 is connected with a first eccentric wheel 15, the first eccentric wheel 15 rotates to drive the first piston 8 to reciprocate, the first eccentric wheel 15 is connected with a first motor 16 through a driving shaft, and the first motor 16 provides energy for the reciprocating motion of the first piston 8; a first water tank 19 is arranged on one side of the quick adjusting hydraulic cylinder 7; an air supply pipe 12 is arranged above the quick adjusting hydraulic cylinder 7, and when the inner layer of the pressure cylinder 1 deforms after pressurization and water injection are finished, the air supply pipe 12 injects air generated by the reciprocating motion of the first piston 8 into the cavity structure of the pressure cylinder 1; the upper part of the left side of the buffer tank 20 is connected with the inside of the pressure cylinder 1 through a buffer water storage pipe 22, and water in the pressure cylinder 1 is transmitted into a pressure relief tank 21; the one end that buffering water storage pipe 22 is close to buffer tank 20 is equipped with fourth solenoid valve 23, buffer tank 20 left side below links to each other with 1 inside of pressure cylinder through back flow pipe 24, buffer tank 20 links to each other inside with buffering water storage pipe 22 and is equipped with diverging device 33, diverging device 33 shunts the high-pressure water column to reduce the impact of high-pressure water column to buffer tank 20, avoid buffer tank 20 to receive to topple over after the high pressure striking, also avoid long-time high-pressure water column striking to lead to buffer tank 20 wall to warp. The return pipe 24 is beneficial to the water stored in the pressure relief tank 21 to flow back to the pressure cylinder 1; a fifth electromagnetic valve is arranged at one end of the return pipe 24 close to the buffer tank 20; the fourth electromagnetic valve 23 and the fifth electromagnetic valve are controlled by the system, when the buffer tank 20 needs to store water, the fourth electromagnetic valve 23 is opened, and the fifth electromagnetic valve is closed; when the surge tank 20 needs to be filled with water to the pressure cylinder 1, the fourth electromagnetic valve 23 is closed and the fifth electromagnetic valve is opened. The left side of the pressure relief tank 21 is connected with the inside of the buffer tank 20 through a pressure relief pipe 25, the right end of the pressure relief pipe 25 is provided with a pressure relief valve 26, and a drain pipe 27 is connected below the right side of the pressure relief tank 21; a second piston 30 is arranged in the fine adjustment hydraulic cylinder 28, and the second piston 30 reciprocates to press water in a second water tank 29 into the pressure cylinder 1 from the fine adjustment hydraulic cylinder 28; one end of a second piston 30 penetrates through the fine adjustment hydraulic cylinder 28 and is connected with the connecting rod 14, the other end of the connecting rod 14 is connected with a second eccentric wheel 31, and the second eccentric wheel 31 rotates to drive the second piston 30 to reciprocate; the second eccentric wheel 31 is connected with a second motor 32 through a driving shaft, and the second motor 32 provides energy for the reciprocating motion of the second piston 30; and a second water tank 29 is arranged on one side of the fine adjustment hydraulic cylinder 28.
The double-layer cavity structure comprises an LED lamp outer layer 2, a contact chip 3, a cavity 4, an induction metal sheet 5 and a pressure cylinder inner layer 6 from outside to inside in sequence; the surface of the outer layer 2 of the LED lamp is provided with a plurality of LED lamps. The outer layer 2 of the LED lamp is connected with the contact chip 3, and the induction metal sheet 5 is connected with the inner layer 6 of the pressure cylinder. The outer layer 2 of the LED lamp is beneficial to reminding people of the deformation position of the inner layer of the pressure cylinder 1 by means of a luminous point, and the contact chip 3 transmits a lamp-lighting signal to the outer layer 2 of the LED lamp;
a plurality of probes are arranged in the cavity 4, the probes are connected with the contact chip 3, and the probes are close to the induction metal sheet 5. When the contact chip 3 is connected with the probe, the contact chip 3 successfully transmits a light-up signal to the outer layer 2 of the LED lamp, and the LED lamp is turned on.
The cavity 4 is connected with an air supply pipe 12, and a second electromagnetic valve 11 is arranged at the connection end of the air supply pipe 12 and the quick adjusting hydraulic cylinder 7. The blower tube 12 facilitates the delivery of gas into the cavity 4 so that the pressure in the cavity 4 corresponds to the pressure in the cylinder 1, thereby allowing the deformed portion of the cylinder 1 to be restored to its original position. The probe shape is not bent because the pressure in the cavity 4 is consistent. Under the control of the system, after the pressure in the cavity 4 is enough to restore the deformation of the inner layer of the pressure cylinder 1, the second electromagnetic valve 11 is closed, and the pressure in the cavity 4 is kept.
One sides of the fast adjusting hydraulic cylinder 7 and the fine adjusting hydraulic cylinder 28 are connected with the pressure cylinder 1 through a booster pipe 9, and one side of the booster pipe 9, which is close to the pressure cylinder 1, is provided with a first electromagnetic valve 10. The booster pipe 9 facilitates the flow of water into the pressure cylinder 1. Under the control of the system, after the pressure in the pressure cylinder 1 is adjusted, the first electromagnetic valves 10 are closed in sequence to ensure the pressure in the pressure cylinder 1.
One side of first water tank 19 and second water tank 29 all is connected with fast transfer pneumatic cylinder 7 and accurate adjustment pneumatic cylinder 28 respectively through water injection pipe 17, and water injection pipe 17 is close to fast transfer pneumatic cylinder 7 and accurate adjustment pneumatic cylinder 28 one end and is equipped with third solenoid valve 18. Under the control of the system, if the pressure in the pressure cylinder 1 is regulated, the third solenoid valve 18 is closed in sequence to prevent the water in the first water tank 19 and the second water tank 29 from flowing out, so that the water flows into the cavity 4 at a later stage when the gas is injected into the cavity 4.
The flow dividing device 33 comprises a flow dividing column 33-1, a flow dividing branch 33-2, an injection head 33-3 and a water depth sensor 33-4; the flow dividing column 33-1 is provided with a plurality of flow dividing small holes, which is beneficial to dividing the water column flowing out from the buffering water storage pipe 22 into a plurality of water columns so as to reduce the pressure of the water columns. The shunting branches 33-2 are connected to the right side of the shunting column 33-1 at intervals by shunting small holes to obtain channels with different water column flow directions, and a plurality of injection heads 33-3 are positioned on the right side and below the shunting device 33 and used for the water column to flow out. The water depth sensor 33-4 is electrically connected with the buffer tank 20 and the injection head 33-3; the water depth sensor 33-4 can detect the water depth height in the buffer tank 20, and when the water depth exceeds a half, the injection head 33-3 automatically adjusts the direction, so that the water outlet direction is towards the water, the water does not flow out of the inner wall of the buffer tank 20 any more, and the impact of the water body on the inner wall of the buffer tank 20 is reduced.
The wind shields 13 are arranged in the fast adjusting hydraulic cylinder 7 and the fine adjusting hydraulic cylinder 28, so that the flow direction of gas can be blocked, and the gas can enter the cavity 4 conveniently.
The contact part of the buffering water storage pipe 22 and the bottom of the pressure cylinder 1 is a pointed end, and the contact part of the pressure relief pipe 25 and the bottom of the pressure relief tank 21 is a pointed end. The pointed end is beneficial to sucking water out of the tube, and the buffer water storage tube 22 and the pressure relief tube 25 are prevented from being attached to the ground to form vacuum, so that drainage of a water body is not facilitated. The buffering water storage pipe 22 and the pressure relief pipe 25 are rubber hoses. The rubber hose can resist high pressure of water body.
The working principle is as follows: when the water-saving type electromagnetic valve is used, the fifth electromagnetic valve is opened, water stored in the buffer tank 20 quickly flows into the pressure cylinder 1, the fifth electromagnetic valve is closed after the water flows out, and the first electromagnetic valve 10 and the third electromagnetic valve 18 in front of the pressure cylinder 1 are opened. Firstly, starting a first motor 16 to drive a first eccentric wheel 15 to rotate so as to drive a first piston 8 to reciprocate; when the first piston 8 moves in the direction of the first motor 16, the water in the first water tank 19 flows into the quick adjustment hydraulic cylinder 7 through the third electromagnetic valve 18, and flows into the cylinder 1 as the first piston is pressed in the direction of the cylinder 1. The pressure gauge is observed and when the pressure required for the test is approached, the first solenoid valve 10 and the third solenoid valve 18 in front of the pressure cylinder 1 are closed. Then the first electromagnetic valve 10 and the third electromagnetic valve 18 at the rear of the pressure cylinder 1 are opened, the second motor 32 is started, the second eccentric wheel 31 is driven to rotate, and the second piston 30 is driven to reciprocate; when the second piston 30 moves in the direction of the second motor 32, the water in the second water tank 29 flows into the fine adjustment hydraulic cylinder 28 through the third electromagnetic valve 18, and flows into the cylinder 1 as the second piston is pressed in the direction of the cylinder 1. The pressure gauge is observed, and when the pressure required by the test is reached, the first solenoid valve 10 and the third solenoid valve 18 behind the pressure cylinder 1 are closed. At this point, the adjustment of the pressure required for the test in the pressure cylinder 1 is completed. After the test is completed, the fourth electromagnetic valve 23 and the pressure relief valve 26 are opened, the water in the pressure cylinder 1 flows into the buffer tank 20 through the flow dividing device 33 under the action of vacuum, and after the buffer tank 20 is filled with water, the water in the pressure cylinder 1 flows to the pressure relief tank 21 and is finally discharged from the drain pipe 27. After the pressure cylinder 1 is completely drained, the fourth electromagnetic valve 23 and the pressure relief valve 26 are closed, and the water in the buffer tank 20 is used for the next test.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides a deep sea pressure analogue test device which characterized in that: comprises a pressure cylinder (1), a quick adjusting hydraulic cylinder (7), a buffer tank (20), a pressure relief tank (21) and a fine adjusting hydraulic cylinder (28); a quick adjusting hydraulic cylinder (7) is arranged in front of the pressure cylinder (1), a buffer tank (20) is arranged on the right side of the pressure cylinder (1), a pressure relief tank (21) is arranged on the right side of the buffer tank (20), and a fine adjusting hydraulic cylinder (28) is arranged behind the pressure cylinder (1);
the pressure cylinder (1) is of a double-layer cavity structure; a first piston (8) is arranged in the quick adjusting hydraulic cylinder (7), one end of the first piston (8) penetrates through the quick adjusting hydraulic cylinder (7) and is connected with a connecting rod (14), the other end of the connecting rod (14) is connected with a first eccentric wheel (15), the first eccentric wheel (15) is connected with a first motor (16) through a driving shaft, a first water tank (19) is arranged on one side of the quick adjusting hydraulic cylinder (7), and an air supply pipe (12) is arranged above the quick adjusting hydraulic cylinder (7); the upper part of the left side of the buffer tank (20) is connected with the inside of the pressure cylinder (1) through a buffer water storage pipe (22), and a flow dividing device (33) is arranged inside the buffer tank (20) connected with the buffer water storage pipe (22); a fourth electromagnetic valve (23) is arranged at one end, close to the buffer tank (20), of the buffer water storage pipe (22), the lower portion of the left side of the buffer tank (20) is connected with the inside of the pressure cylinder (1) through a return pipe (24), and a one-way valve is arranged at one end, close to the buffer tank (20), of the return pipe (24); the left side of the pressure relief tank (21) is connected with the inside of the buffer tank (20) through a pressure relief pipe (25), the right end of the pressure relief pipe (25) is provided with a pressure relief valve (26), and a drain pipe (27) is connected below the right side of the pressure relief tank (21); the fine adjustment hydraulic cylinder (28) is internally provided with a second piston (30), one end of the second piston (30) penetrates through the fine adjustment hydraulic cylinder (28) and is connected with the connecting rod (14), the other end of the connecting rod (14) is connected with a second eccentric wheel (31), the second eccentric wheel (31) is connected with a second motor (32) through a driving shaft, and one side of the fine adjustment hydraulic cylinder (28) is provided with a second water tank (29).
2. The deep sea pressure simulation test device according to claim 1, wherein: the double-layer cavity structure sequentially comprises an LED lamp outer layer (2), a contact chip (3), a cavity (4), an induction metal sheet (5) and a pressure cylinder inner layer (6) from outside to inside; the outer layer (2) of the LED lamp is connected with the contact chip (3), and the induction metal sheet (5) is connected with the inner layer (6) of the pressure cylinder.
3. The deep sea pressure simulation test device according to claim 2, wherein: a plurality of probes are arranged in the cavity (4), the probes are connected with the contact chip (3), and the probes are close to the induction metal sheet (5).
4. The deep sea pressure simulation test device according to claim 3, wherein: the cavity (4) is connected with an air supply pipe (12), and a second electromagnetic valve (11) is arranged at the connecting end of the air supply pipe (12) and the quick adjusting hydraulic cylinder (7).
5. The deep sea pressure simulation test device according to claim 1, wherein: one sides of the fast adjusting hydraulic cylinder (7) and the fine adjusting hydraulic cylinder (28) are connected with the pressure cylinder (1) through a pressure boosting pipe (9), and one side, close to the pressure cylinder (1), of the pressure boosting pipe (9) is provided with a first electromagnetic valve (10).
6. The deep sea pressure simulation test device according to claim 5, wherein: one side of first water tank (19) and second water tank (29) all is connected with fine tuning pneumatic cylinder (7) and fine tuning pneumatic cylinder (28) respectively through water injection pipe (17), water injection pipe (17) are close to and adjust pneumatic cylinder (7) and fine tuning pneumatic cylinder (28) one end soon and are equipped with third solenoid valve (18).
7. The deep sea pressure simulation test device according to claim 1, wherein: the flow dividing device (33) comprises a flow dividing column (33-1), a flow dividing branch (33-2), an injection head (33-3) and a water depth sensor (33-4); the flow dividing column (33-1) is provided with a plurality of flow dividing small holes, the flow dividing branches (33-2) are connected to the right side of the flow dividing column (33-1) at intervals, the injection heads (33-3) are located on the right side and below the flow dividing device (33), and the water depth sensor (33-4) is electrically connected with the buffer tank (20) and the injection heads (33-3).
8. The deep sea pressure simulation test device according to claim 1, wherein: wind shields (13) are arranged in the fast adjusting hydraulic cylinder (7) and the fine adjusting hydraulic cylinder (28).
9. The deep sea pressure simulation test device according to claim 1, wherein: the contact part of the buffering water storage pipe (22) and the bottom of the pressure cylinder (1) is a pointed end, and the contact part of the pressure relief pipe (25) and the bottom of the pressure relief tank (21) is a pointed end; the buffering water storage pipe (22) and the pressure relief pipe (25) are rubber hoses.
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