CN115962112A - Vertical hydrogen compressor and hydraulic system - Google Patents
Vertical hydrogen compressor and hydraulic system Download PDFInfo
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- CN115962112A CN115962112A CN202211582250.1A CN202211582250A CN115962112A CN 115962112 A CN115962112 A CN 115962112A CN 202211582250 A CN202211582250 A CN 202211582250A CN 115962112 A CN115962112 A CN 115962112A
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Abstract
The invention discloses a vertical hydrogen compressor, relates to the field of compressors, and aims to solve the problem of low energy consumption and utilization rate of the vertical hydrogen compressor. The vertical hydrogen compressor comprises at least one set of vertical compressor components arranged in pairs. Any one of the compressor components comprises an oil cylinder, an air cylinder and a piston rod. One end of the piston rod extends into the cylinder, the first piston is arranged at the end of the piston rod, the other end of the piston rod extends into the oil cylinder, and the second piston is arranged at the end of the piston rod. The second piston divides the cylinder into a first chamber and a second chamber. The first chamber is provided with an oil port. In the same unit compressor assembly, the two second chambers are communicated. The invention can realize high energy consumption utilization rate on the basis of ensuring the vertical hydrogen compressor to realize double functions. The invention also discloses a hydraulic system.
Description
Technical Field
The invention relates to the field of compressors, in particular to a vertical hydrogen compressor and a hydraulic system.
Background
The traditional vertical oil cylinder is provided with an upper air cylinder and a lower air cylinder so as to realize the double-acting function. In this technical scheme, two cylinders distribute at the upper and lower both ends of hydro-cylinder, after long-time the use, if the hydro-cylinder is sealed to appear damaged, hydraulic oil can flow into in the lower extreme cylinder along the piston rod to permeate to the compressed gas side, lead to hydrogen pollution from this.
On the basis of the technical scheme, the air cylinder only arranged at the upper end of the oil cylinder is selected in some technical schemes, so that two problems occur, namely in the first air suction process, the oil cylinder does not work, the motor runs without load, and no-load energy consumption is caused; secondly, the energy consumption is saved by not using the air inlet pressure as auxiliary thrust.
Disclosure of Invention
In view of this, the present invention provides a vertical hydrogen compressor, which aims to solve the problem of low energy consumption and utilization rate of the vertical hydrogen compressor.
In order to achieve the purpose, the technical scheme is as follows:
a first aspect of the present application provides a vertical hydrogen compressor comprising at least one set of vertical compressor elements arranged in pairs. Any one of the compressor components comprises an oil cylinder, an air cylinder and a piston rod. One end of the piston rod extends into the cylinder, the first piston is arranged at the end, the other end of the piston rod extends into the oil cylinder, and the second piston is arranged at the end. The second piston divides the cylinder into a first chamber and a second chamber. The first chamber is provided with an oil port. In the same assembled compressor assembly, the two first chambers are communicated.
For any one compressor assembly, on the basis of the communication of the two first chambers, oil is fed and discharged through different oil ports, so that the oil is used as an incompressible medium to realize force transmission, the two piston rods move towards opposite directions, and the double-acting function of the vertical compressor is realized.
Optionally, in any compressor assembly, the oil cylinder is arranged at the bottom of the air cylinder.
When the oil cylinder is positioned at the bottom of the air cylinder, if the compressor leaks after a long time, oil liquid falls into the oil cylinder along the axial direction of the piston rod through the gravity of the oil liquid, so that the oil liquid cannot enter the air cylinder to pollute the gas in the air cylinder.
Optionally, the first piston divides one end of the cylinder close to the oil cylinder into a third chamber. The third chamber is provided with a first oil discharge port.
After the oil liquid adhered to the piston rod flows along the axial direction of the piston rod, the oil liquid can be gathered in the third cavity, and the gathered oil liquid can be discharged through the first oil discharging port at the moment.
Optionally, any one of the compressor assemblies further comprises a liquid level switch. The liquid level switch is arranged on the first oil discharging port.
Under normal conditions, the first oil discharge port is in a closed state, and after a certain amount of oil is gathered at the first oil discharge port, the first oil discharge port is opened through the liquid level switch so as to discharge the oil.
Optionally, any one of the compressor assemblies further comprises a seal body. One end of the sealing body is connected with the air cylinder, and the other end of the sealing body is connected with the oil cylinder. The piston rod is connected with the sealing body in a sliding mode.
The seal body can realize the isolation of the cylinder and the oil cylinder and meet the actual requirements of gas-liquid separation.
Optionally, any of the compressor assemblies further comprises a scraper ring and a rod seal. The oil scraper ring is arranged on the sealing body and is in sliding connection with the piston rod. The rod seal is arranged on the seal body and is in sliding connection with the piston rod.
In the process of using the vertical compressor, because there is relative motion between piston rod and the seal, consequently, have relative motion between piston rod and the scraper ring to and between piston rod and the rod seal equally, on this basis, oil is carried to the piston rod, through the rod seal, can realize the pressure-bearing, avoids oil to leak, and the scraper ring can strike off oil on the piston rod.
Optionally, the oil scraper ring is disposed adjacent to the cylinder, and the rod seal is disposed adjacent to the cylinder. A second oil discharge port is arranged between the oil scraper ring and the rod seal.
The oil liquid that the piston rod got rid of is prevented to the discharge scraper ring that the second oil discharge port can be fine to piling up of oil liquid.
Optionally, the two first chambers are communicated to the oil storage device through corresponding oil ports and a reversing valve.
The reversing valve can realize the reversing of the oil flow direction and avoid the backflow of the oil on a determined flow path.
A second aspect of the present application provides a hydraulic system comprising a vertical hydrogen compressor as described above.
Optionally, the hydraulic system further comprises a displacement sensor and a controller. The displacement sensor is arranged in the oil cylinder or the air cylinder and used for detecting the movement position of the piston rod. The controller is in communication connection with the displacement sensor and used for receiving the position information fed back by the displacement sensor and controlling the reversing valve to reverse according to the position information.
The piston rod has certain length of stroke in hydro-cylinder and cylinder, after the piston rod reached the definite position, change the fluid flow direction through the switching-over valve to satisfy the exhaust of different cylinders or inhale, thereby on the basis that the hydro-cylinder communicates each other, realize the compressor two effects.
Drawings
FIG. 1 is a schematic view of a vertical hydrogen compressor according to an embodiment of the present invention;
fig. 2 is an enlarged view of fig. 1 at a.
In the figure: 100-a first component; 200-a second component; 1-oil cylinder; 2-a cylinder; 3-a piston rod; 4-a first piston; 5-a second piston; 6-a first chamber; 7-a second chamber; 8-a third chamber; 9-a first oil discharge port; 10-a fourth chamber; 11-a seal; 12-a scraper ring; 13-rod sealing; 14-a second oil discharge port; 15-oil storage equipment.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the present invention will be further described in detail with reference to the following embodiments.
As shown in fig. 1, the present application provides a vertical hydrogen compressor comprising at least one set of vertical compressor assemblies arranged in pairs. Any one set of compressor components comprises an oil cylinder 1, a cylinder 2 and a piston rod 3. One end of the piston rod 3 extends into the cylinder, the first piston 4 is arranged at the end, the other end of the piston rod 3 extends into the oil cylinder 1, and the second piston 5 is arranged at the end. The second piston 5 divides the cylinder 1 into a first chamber 6 and a second chamber 7. The first chamber 6 is provided with an oil port. In the same assembly compressor assembly, the two second chambers 7 communicate.
In this embodiment, the vertical hydrogen compressor has a set of vertical compressor components arranged in pairs, and the two vertical compressor components are respectively a first component 100 and a second component 200, so that the first component 100 includes a first oil cylinder, a first air cylinder and a first piston rod, and the second component 200 includes a second oil cylinder, a second air cylinder and a second piston rod.
When the present embodiment is used, when oil is injected into the oil port of the first chamber 6 of the first assembly 100, the first piston rod moves downward, the space of the second chamber 7 of the first assembly 100 is compressed, and through force transmission, the oil stored in the second chamber 7 of the first assembly 100 is extruded into the second chamber 7 of the second assembly 200 to push the second piston rod to move upward, at this time, the space of the first chamber 6 of the second assembly 200 is compressed, so that the oil therein is extruded through the oil port thereof. In the process, the first cylinder is in an air suction state, and the second cylinder is in a compression air exhaust state.
After the direction is changed, oil is injected into the first chamber 6 of the second assembly 200 through the oil port of the second assembly 200, the second piston rod is pushed to move downwards, the space of the second chamber 7 of the second assembly 200 is compressed at the moment, oil in the second chamber 7 of the second assembly 200 is extruded into the second chamber 7 of the first assembly 100 through force transmission, so that the first piston rod is pushed to move upwards, the space of the first chamber 6 of the first assembly 100 is extruded at the moment, and the oil in the oil is extruded through the oil port of the first chamber. In the process, the first cylinder is in a compression exhaust state, and the second cylinder is in an air suction state.
Based on this, through the power transmission function behind two hydro-cylinders 1 intercommunication for vertical hydrogen compression has by two effect functions, can rely on the pressure of admitting air to assist the power saving energy consumption of helping. In the process, the piston rod 3 has no idle stroke, no idle load energy consumption can be caused, and the utilization rate of the motor is improved.
In fact, the first oil cylinder and the second oil cylinder can be replaced by incompressible liquid such as anhydrous glycol and ionic liquid besides oil.
In some embodiments, in any one of the compressor assemblies, the cylinder 1 is disposed at the bottom of the cylinder 2.
For any compressor assembly, the composition structure of the compressor assembly comprises an air cylinder 2 and an oil cylinder 1 from top to bottom. Therefore, when oil leakage occurs in the assembly, the oil flows downwards along the axial direction of the piston rod 3, so that the oil cannot enter the cylinder 2 to pollute the gas in the cylinder.
In some embodiments, the first piston 4 separates an end of the cylinder 2 adjacent the cylinder 1 into a third chamber 8. The third chamber 8 is provided with a first oil discharge port 9.
The first piston 4 in fact divides the cylinder 2 into a third chamber 8 and a fourth chamber 10, the third chamber 8 being located below the fourth chamber 10. It will be appreciated that hydrogen in the cylinder 2 passes into and out of the cylinder 2 via the fourth chamber 10 and does not pass into the third chamber 8.
Specifically, for any compressor assembly, the composition structure of the compressor assembly is a fourth chamber 10, a third chamber 8, a first chamber 6 and a second chamber 7 from top to bottom.
From this, when vertical compressor unit spare all appeared wearing and tearing, fluid probably accompanies piston rod 3 and gets into third chamber 8, and at the continuous motion in-process of piston rod 3 this moment, fluid probably piles up in third chamber 8, from this, sets up first oil discharge opening 9 in third chamber 8, can discharge fluid. The drained oil may be recycled to the tank.
It will be appreciated that in this embodiment the first chambers 6 of all the compressor assemblies are ultimately connected to the same oil tank, although in other embodiments there may be one oil tank for each compressor assembly, or there may be more than one oil tank for each compressor assembly.
In some embodiments, any one of the compressor assemblies further comprises a liquid level switch. The liquid level switch is arranged at the first oil discharge port 9.
In general, in order to ensure the sealing performance of the cylinder 2, the first oil discharge port 9 is in a blocking state, and when oil discharge is required, the oil discharge port is opened to discharge oil. When fluid is piling up the back, the liquid level switch can sense fluid accumulation volume, when fluid accumulation volume reached liquid level switch's predetermined threshold value, first oil discharge opening 9 was opened to the liquid level switch, made fluid discharge.
On this basis, the vertical hydrogen compressor of this embodiment still includes the alarm. When the liquid level switch is turned on frequently, the staff is prompted to have serious leakage.
In this embodiment, the oil leakage condition can be judged through the time interval of opening the liquid level switch for any two adjacent times. Specifically, whether the first oil discharge port 9 is opened by the liquid level switch depends on the accumulated oil amount detected by the liquid level switch, so that the oil leakage degree can be calculated according to the time interval between any two adjacent times of opening the first oil discharge port 9 by the liquid level switch, and a worker is informed of maintenance.
In some embodiments, as shown in FIG. 2, any one of the compressor assemblies further includes a seal body 11. One end of the sealing body 11 is connected with the cylinder 2, and the other end of the sealing body 11 is connected with the oil cylinder 1. The piston rod 3 is slidably connected to the seal body 11.
In this embodiment, the cylinder 2 is connected to the upper side of the seal body 11, and the cylinder 1 is connected to the lower side of the seal body 11, and in addition, the oil scraper ring 12 and the rod seal 13 are further included in any one of the compressor modules. The oil scraper ring 12 is provided to the seal body 11, and the oil scraper ring 12 is slidably connected to the piston rod 3. The rod seal 13 is provided in the seal body 11, and the rod seal 13 is slidably connected to the piston rod 3.
Therefore, in the embodiment, the oil leakage of the vertical compressor is caused by the abrasion of the oil scraper ring 12 and/or the rod seal 13, after the vertical compressor is operated for a long time, the abrasion of the rod seal 13 can be gradually increased, so that the high-pressure oil in the oil cylinder 1 can be increased and leaked along with the aggravation of the abrasion of the rod seal 13, after the hydraulic oil is leaked, the oil is scraped through the oil scraper ring 12, however, a part of oil still can be remained and accumulated on the piston rod 3, after the oil is accumulated to a certain degree, under the influence of gravity, the oil is dripped along the piston rod 3 due to the self weight of the oil, at this moment, the dripped oil is accumulated at the first oil unloading port 9, after the oil is accumulated to a certain degree, the liquid level switch is opened, and the oil is discharged.
In some embodiments, the oil scraper ring 12 is disposed adjacent to the cylinder 2 and the rod seal 13 is disposed adjacent to the cylinder 1. A second oil discharge port 14 is provided between the oil scraper ring 12 and the rod seal 13.
In the embodiment, the oil scraped by the oil scraper ring 12 can be discharged through the second oil discharge port 14, and the oil carried by the piston rod 3 can be prevented from accumulating and entering the third chamber 8 as much as possible, so that the opening times of the first oil discharge port 9 is reduced, and the action continuity of the vertical compressor is ensured as much as possible.
In some embodiments, the two first chambers 6 are connected to the oil reservoir 15 through corresponding oil ports via a reversing valve.
In this embodiment, the oil storage device 15 is an oil tank. The oil tank is provided with a reversing valve, so that when two first chambers 6 of the same group of compressor assemblies are respectively communicated to two interfaces of the reversing valve through hoses, the flow direction of oil can be determined when the oil tank pumps oil through the operation of the reversing valve.
A second aspect of the present application provides a hydraulic system comprising a vertical hydrogen compressor as described above.
Specifically, the hydraulic system further comprises a displacement sensor and a controller. The displacement sensor is arranged inside the oil cylinder 1 or the air cylinder 2 and used for detecting the movement position of the piston rod 3. The controller is in communication connection with the displacement sensor and used for receiving the position information fed back by the displacement sensor and controlling the reversing valve to reverse according to the position information.
In this embodiment, the controller may be a part of a computer, and the specific function is realized by installing software that does not need to be designed by a worker, or the controller may be a single chip microcomputer, such as STC89C51 series.
In the present embodiment, the displacement sensor is disposed on both the cylinder 2 and the oil cylinder 1, and can sense the position of the first piston 4 and/or the position of the second piston 5 to determine the position of the piston rod 3. It will thus be appreciated that the displacement sensor has two feedback points, and in this embodiment the displacement sensor senses the position of the first piston 4, and therefore the distance between the two feedback points is the path limit distance of the first piston 4.
Thus, for the first assembly 100, when the first piston 4 moves downward and reaches the low point path limit point, the displacement sensor feeds back a signal to the controller, and the controller controls the reversing valve to reverse. At this time, the first piston 4 will move upwards or has a tendency to move upwards until the first piston 4 moves to the limit point of the high point path, and then a signal is fed back to the controller by the displacement sensor, and the controller controls the reversing valve to reverse again. The use of the vertical compressor is realized by continuously circulating the process.
In addition, in this embodiment, the controller is also used for leakage monitoring, and whether the rod seal 13 needs to be replaced and/or maintained is judged, and the specific monitoring steps are as follows:
s1, acquiring the time t1 for the nth turn-on of the liquid level switch through a controller.
S2, acquiring the time t2 for opening the liquid level switch for the (n + 1) th time through the controller.
And S3, according to the t1 and the t2, the controller obtains the time difference delta t of the two adjacent opening times of the liquid level switch.
S4, setting a preset time t0 through the controller, and comparing the preset time t0 with the time delta t:
s401, if t0 <. DELTA.t, then the rod seal 13 need not be replaced and/or repaired.
S402, if t0 is more than or equal to delta t, the rod seal 13 needs to be replaced and/or maintained.
And S5, if the rod seal 13 needs to be replaced and/or maintained, prompting a worker through an alarm.
The above are only preferred embodiments of the present invention, and it should be noted that the above preferred embodiments should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (10)
1. A vertical hydrogen compressor, comprising:
at least one set of vertical compressor assemblies arranged in pairs;
any one of the compressor assemblies includes:
an oil cylinder;
a cylinder; one end of the piston rod extends into the cylinder, the first piston is arranged at the end of the piston rod, the other end of the piston rod extends into the oil cylinder, and the second piston is arranged at the end of the piston rod;
the second piston divides the oil cylinder into a first chamber and a second chamber; the first chamber is provided with an oil port;
in the same assembled compressor assembly, the two second chambers are communicated.
2. A vertical hydrogen compressor according to claim 1, wherein in any one of the compressor assemblies, the oil cylinder is disposed at the bottom of the cylinder.
3. A vertical hydrogen compressor according to claim 2, wherein the first piston divides an end of the cylinder adjacent the cylinder into a third chamber;
the third chamber is provided with a first oil discharge port.
4. A vertical hydrogen compressor according to claim 3, wherein any one of the compressor assemblies further comprises:
and the liquid level switch is arranged on the first oil unloading port.
5. A vertical hydrogen compressor according to claim 1, wherein any one of the compressor assemblies further comprises:
one end of the sealing body is connected with the air cylinder, and the other end of the sealing body is connected with the oil cylinder;
the piston rod is connected with the sealing body in a sliding mode.
6. A vertical hydrogen compressor according to claim 5, wherein any one of the compressor assemblies further comprises:
the oil scraper ring is arranged on the sealing body, and the oil scraper ring is connected with the piston rod in a sliding manner; and
the rod seal is arranged on the sealing body and is in sliding connection with the piston rod.
7. A vertical hydrogen compressor as claimed in claim 6, wherein said oil scraper ring is disposed adjacent said cylinder and said rod seal is disposed adjacent said cylinder;
and a second oil discharge port is arranged between the oil scraper ring and the rod seal.
8. The vertical hydrogen compressor according to any one of claims 1 to 7, wherein the two first chambers are communicated to an oil storage device through corresponding oil ports via a reversing valve.
9. A hydraulic system comprising a vertical hydrogen compressor according to claim 8.
10. The hydraulic system as recited in claim 9 further comprising:
the displacement sensor is arranged inside the oil cylinder or the air cylinder and is used for detecting the movement position of the piston rod; and
and the controller is in communication connection with the displacement sensor and is used for receiving the position information fed back by the displacement sensor and controlling the reversing valve to reverse according to the position information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211582250.1A CN115962112A (en) | 2022-12-09 | 2022-12-09 | Vertical hydrogen compressor and hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211582250.1A CN115962112A (en) | 2022-12-09 | 2022-12-09 | Vertical hydrogen compressor and hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115962112A true CN115962112A (en) | 2023-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211582250.1A Pending CN115962112A (en) | 2022-12-09 | 2022-12-09 | Vertical hydrogen compressor and hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115962112A (en) |
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2022
- 2022-12-09 CN CN202211582250.1A patent/CN115962112A/en active Pending
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