CN111924716B - Lifting safety protection device of hydrogen cooler and working method thereof - Google Patents
Lifting safety protection device of hydrogen cooler and working method thereof Download PDFInfo
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- CN111924716B CN111924716B CN202010632052.6A CN202010632052A CN111924716B CN 111924716 B CN111924716 B CN 111924716B CN 202010632052 A CN202010632052 A CN 202010632052A CN 111924716 B CN111924716 B CN 111924716B
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- alarm
- hydrogen cooler
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- hook
- tension sensor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/06—Arrangements or use of warning devices
- B66C15/065—Arrangements or use of warning devices electrical
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention discloses a hydrogen cooler lifting safety protection device and a working method thereof, wherein the hydrogen cooler lifting safety protection device comprises a tension sensor, a first hook, a second hook, a buffer unit, an alarm unit and a limit switch, wherein the first hook is arranged on the tension sensor and used for being connected with a crane; when the elongation of the buffer unit reaches a preset length, the limit switch is triggered, and the limit switch starts the alarm unit to give an alarm. The safety protection device for the lifting of the hydrogen cooler is arranged between a crane and the hydrogen cooler, and the alarm unit is matched with the tension sensor and the buffer unit, so that the hydrogen cooler can give an alarm to remind of stopping driving when being blocked in the lifting process, the protection of blocking and stopping is realized, and the safety of the lifting process of the hydrogen cooler is improved.
Description
Technical Field
The invention relates to a lifting safety protection device, in particular to a lifting safety protection device of a hydrogen cooler and a working method thereof.
Background
The generator is typically equipped with 4 vertically mounted hydrogen coolers, each hydrogen cooler being about 4-5 meters high. The overhaul needs to be lifted out every year when the overhaul is carried out. The crane is generally 30-50 tons, the hydrogen cooler is 2-4 tons, and 2 lifting straps with 5 tons are generally used. The hydrogen cooler is inside the generator, and the last mouthful of hydrogen cooler, end opening because will install hydrogen sealing rubber circle, its size is as little as possible guarantees sealed effect, and consequently the clearance with the hydrogen cooler strengthening rib is little, and the staff hardly observes in the in-process of lifting out, if the condition that takes place the strengthening rib and go up mouthful or end opening and block, in very short time, suspender pulling force will rise to 30 tons-50 tons from the hydrogen cooler weight rapidly, and this breaks suspender or hydrogen cooler very easily, leads to the hydrogen cooler to fall from the midair, damages or smashes bad generator or injures people even.
Disclosure of Invention
The invention aims to provide a hydrogen cooler lifting safety protection device for improving the lifting safety of a hydrogen cooler and a working method thereof.
The technical scheme adopted by the invention for solving the technical problem is as follows: the hydrogen cooler hoisting safety protection device comprises a tension sensor, a first hook, a second hook, a buffer unit, an alarm unit and a limit switch, wherein the first hook is arranged on the tension sensor and used for being connected with a crane;
when the elongation of the buffer unit reaches a preset length, the limit switch is triggered, and the limit switch starts the alarm unit to give an alarm.
Preferably, the alarm unit is an audible and visual alarm.
Preferably, the alarm unit comprises an alarm shell, an alarm lamp and an alarm loudspeaker which are arranged on the alarm shell, and a power supply for supplying power to the alarm lamp and the alarm loudspeaker; the limit switch is arranged on the alarm shell corresponding to the buffer unit.
Preferably, the buffer unit is a buffer spring.
Preferably, the hydrogen cooler lifting safety protection device further comprises a display in communication connection with the tension sensor.
Preferably, the hydrogen cooler hoisting safety protection device further comprises an outer shell; the tension sensor and the punching unit are both arranged in the shell, and the first hook and the second hook respectively extend out of the upper end and the lower end of the shell; the alarm unit is arranged on the shell.
Preferably, the hydrogen cooler lifting safety protection device further comprises a displacement indicating unit, wherein the displacement indicating unit is arranged on the shell and connected with the buffer unit, and moves relative to the shell along with the extension of the buffer unit.
The invention also provides a working method of the lifting safety protection device of the hydrogen cooler, which comprises the following steps:
s1, respectively connecting a first hook and a second hook with a crane and a hydrogen cooler;
s2, starting a crane to hoist the hydrogen cooler, and detecting the tension of the hydrogen cooler by a tension sensor;
when the elongation of the buffer unit between the tension sensor and the second hook reaches a preset length, the limit switch is triggered, and the limit switch starts the alarm unit to give an alarm.
Preferably, in step S2, the tension sensor sends the detected tension to a display;
the display is in wireless communication connection with the tension sensor.
Preferably, in step S2, the elongation of the buffer unit is obtained by a displacement indication unit.
The safety protection device for the lifting of the hydrogen cooler is arranged between a crane and the hydrogen cooler, and the alarm unit is matched with the tension sensor and the buffer unit, so that the hydrogen cooler can give an alarm to remind of stopping driving when being blocked in the lifting process, the protection of blocking and stopping is realized, and the safety of the lifting process of the hydrogen cooler is improved.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic cross-sectional structural view of a safety protection device for lifting a hydrogen cooler according to an embodiment of the present invention.
Detailed Description
For a more clear understanding of the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the safety protection device for lifting a hydrogen cooler according to an embodiment of the present invention is connected between a crane and the hydrogen cooler, and includes a first hook 10, a second hook 20, a tension sensor 30, a buffer unit 40, an alarm unit 50, and a limit switch 60.
The tension sensor 30 is used for detecting tension, and the first hook 10 and the second hook 20 are respectively arranged on the tension sensor 30 and respectively positioned at the top and the bottom of the tension sensor 30. The first hook 10 is used for connecting a crane, and the second hook 20 is used for connecting a hydrogen cooler. When the crane lifts the hydrogen cooler, the tension sensor 30 detects in real time and feeds back the tension of the hydrogen cooler, so that the lifting condition of the hydrogen cooler can be obtained.
The buffer unit 40 is connected between the tension sensor 30 and the second hook 20, and is telescopic to play a role of elastic buffer. The limit switch 60 is connected with the alarm unit 50 and can control the alarm unit 50 to be turned on or off. The limit switch 60 is arranged corresponding to the buffer unit 40, when the elongation of the buffer unit 40 reaches a preset length, the limit switch 60 is triggered, and the limit switch 60 starts the alarm unit 50 to give an alarm.
In this embodiment, the buffer unit 40 is a buffer spring.
The alarm unit 50 may alarm by at least one of sound, light, and the like. In this embodiment, the alarm unit 50 is an audible and visual alarm, and gives an alarm by light and sound at the same time, so as to give an alarm such as stopping driving to an operator in many ways.
Structurally, the alarm unit 50 may include an alarm housing 51, an alarm lamp 52 and an alarm speaker 53 provided on the alarm housing 51, and a power supply 54 for supplying power to the alarm lamp 52 and the alarm speaker 53. The limit switch 60 is mounted on the alarm housing 51 corresponding to the buffer unit 40.
Further, the safety protection device for hoisting a hydrogen cooler of the present invention further comprises a display 70 communicatively connected to the tension sensor 30. The display 70 receives the tension detected by the tension sensor 30 and displays the tension, so that the monitoring personnel or the operating personnel can know the tension in real time conveniently.
The tension sensor 30 is preferably in wireless communication with the display 70 to reduce the installation of connecting wires and the like and the influence on the lifting operation.
Further, the safety protection device for lifting the hydrogen cooler of the invention further comprises a shell 80. The tension sensor 30 and the buffer unit 40 are both arranged in the housing 80, and the first hook 10 and the second hook 20 connected with the tension sensor 30 respectively extend out of the upper end and the lower end of the housing 80. The alarm unit 50 is provided on the housing 80.
In addition, in order to conveniently observe and know the elongated elongation of the buffer unit 40, the hydrogen cooler hoisting safety protection device of the invention further comprises a displacement indicating unit 80, wherein the displacement indicating unit 80 is arranged on the housing 70, one end of the displacement indicating unit extends into the housing 70 to be connected with the buffer unit 40, the displacement indicating unit 80 moves relative to the housing 70 along with the elongation of the buffer unit 40, and the elongation of the buffer unit 40 is obtained through the moving stroke of the displacement indicating unit 80.
Alternatively, the displacement indicating unit 80 may include a displacement indicating rod which is horizontally disposed with respect to the expansion and contraction direction of the buffer unit 40 in the vertical direction. The side wall of the housing 70 may be provided with a guide groove corresponding to the displacement indication rod, and the length extension direction of the guide groove is the same as the extension and contraction direction of the buffer unit 40. The displacement indicating rod moves along the guide groove with the extension of the damping unit 40.
When the safety protection device for lifting the hydrogen cooler works, the working method comprises the following steps:
s1, connecting the first hook 10 and the second hook 20 with a crane and a hydrogen cooler respectively.
S2, the crane is started to lift the hydrogen cooler, and the tension sensor 30 detects tension applied to the hydrogen cooler from the hydrogen cooler.
Wherein, the tension sensor 30 sends the detected tension to the display 70, and the display 70 displays the tension value in real time, so that the guardian or the operator can know the tension value conveniently.
During the hoisting process, when the elongation of the buffer unit 40 between the tension sensor 30 and the second hook 20 reaches a preset length, the limit switch 60 is triggered, and the limit switch 60 starts the alarm unit 50 to give an alarm to prompt an operator to stop driving.
In addition, when the damping unit 40 is elongated, the displacement indicating unit 90 is also driven to move, and the elongation of the damping unit 40 can be obtained by the displacement indicating unit 90.
In the present invention, the tension, elongation, etc. of the buffer unit 40 are set according to actual needs. For example, for a crane of 30 t to 50 t and a hydrogen cooler of 2 t to 4 t, the tensile force of the buffer unit 40 may be set to about 6 t, the extendable total length thereof may be 100mm, and the predetermined length may be set to 20mm. In operation, when the pulling force of the buffer unit 40 exceeds 6 tons, the buffer unit 40 extends; when the elongation of the buffer unit 40 exceeds 20mm, the limit switch 60 is triggered, and an alarm is sent out through the alarm unit 50 to prompt an operator to stop driving. For the buffer unit 40 with the total elongation of 100mm, the elongation of 80mm is still remained when the elongation reaches the preset length, so that the hydrogen cooler cannot be damaged after alarming, and the hydrogen cooler cannot be damaged when the hydrogen cooler is blocked in the generator.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A hydrogen cooler lifting safety protection device is connected between a crane and a hydrogen cooler, and is characterized in that the hydrogen cooler lifting safety protection device is used for lifting the hydrogen cooler out of a generator and comprises a tension sensor, a first hook, a second hook, a buffer unit, an alarm unit and a limit switch, wherein the first hook is arranged on the tension sensor and used for being connected with the crane, the second hook is arranged on the tension sensor and used for being connected with the hydrogen cooler, the buffer unit is connected between the tension sensor and the second hook, and the limit switch is used for controlling the alarm unit to be turned on and turned off;
when the elongation of the buffer unit reaches a preset length, the limit switch is triggered, and the limit switch starts the alarm unit to give an alarm;
the hydrogen cooler hoisting safety protection device further comprises a shell and a displacement indicating unit; the tension sensor and the buffer unit are arranged in the shell, and the first hook and the second hook respectively extend out of the upper end and the lower end of the shell; the alarm unit is arranged on the shell; the displacement indicating unit is arranged on the shell, is connected with the buffering unit and moves relative to the shell along with the extension of the buffering unit;
the displacement indicating unit comprises a displacement indicating rod, and the displacement indicating rod is horizontally arranged relative to the buffer unit in the telescopic direction in the vertical direction; the lateral wall of shell corresponds the displacement indicator pole is equipped with the guide way, the length extending direction of guide way with buffer unit's flexible direction is the same, displacement indicator pole along with buffer unit's extension moves along the guide way.
2. The hydrogen cooler lifting safety protection device of claim 1, wherein the alarm unit is an audible and visual alarm.
3. The hydrogen cooler hoisting safety protection device of claim 2, wherein the alarm unit comprises an alarm housing, an alarm lamp and an alarm speaker arranged on the alarm housing, and a power supply for supplying power to the alarm lamp and the alarm speaker; the limit switch is arranged on the alarm shell corresponding to the buffer unit.
4. The hydrogen cooler hoisting safety protection device of claim 1, wherein the buffer unit is a buffer spring.
5. The hydrogen cooler lifting safety protection device according to claim 1, further comprising a display in communication connection with the tension sensor.
6. The working method of the hydrogen cooler hoisting safety protection device of any one of claims 1 to 5, which is used for hoisting the hydrogen cooler out of the interior of the generator, and comprises the following steps:
s1, respectively connecting a first hook and a second hook with a crane and a hydrogen cooler;
s2, a crane is started to lift the hydrogen cooler, and a tension sensor detects tension applied to the hydrogen cooler from the hydrogen cooler;
when the elongation of the buffer unit between the tension sensor and the second hook reaches a preset length, the limit switch is triggered, and the limit switch starts the alarm unit to give an alarm;
wherein the elongation of the buffer unit is obtained by a displacement indicating unit.
7. The working method according to claim 6, characterized in that in step S2, the tension sensor sends the tension detected by the tension sensor to a display;
the display is in wireless communication connection with the tension sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010632052.6A CN111924716B (en) | 2020-07-03 | 2020-07-03 | Lifting safety protection device of hydrogen cooler and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010632052.6A CN111924716B (en) | 2020-07-03 | 2020-07-03 | Lifting safety protection device of hydrogen cooler and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111924716A CN111924716A (en) | 2020-11-13 |
| CN111924716B true CN111924716B (en) | 2022-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010632052.6A Active CN111924716B (en) | 2020-07-03 | 2020-07-03 | Lifting safety protection device of hydrogen cooler and working method thereof |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2072218U (en) * | 1990-03-11 | 1991-02-27 | 周怀谦 | Portable automatic hanging balance |
| CN1887679A (en) * | 2006-06-30 | 2007-01-03 | 胡长聚 | Weighing hook |
| CN105347181B (en) * | 2015-12-07 | 2018-07-20 | 南开大学 | A kind of automatic hanging hook system |
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