CN112265952B - Alarm device for loading and unloading crane pipe returning to and connecting to position - Google Patents
Alarm device for loading and unloading crane pipe returning to and connecting to position Download PDFInfo
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- CN112265952B CN112265952B CN202011129747.9A CN202011129747A CN112265952B CN 112265952 B CN112265952 B CN 112265952B CN 202011129747 A CN202011129747 A CN 202011129747A CN 112265952 B CN112265952 B CN 112265952B
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- alarm
- loop
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- annunciator
- controller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/32—Arrangements of safety or warning devices; Means for preventing unauthorised delivery of liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/32—Arrangements of safety or warning devices; Means for preventing unauthorised delivery of liquid
- B67D7/3236—Arrangements of safety or warning devices; Means for preventing unauthorised delivery of liquid relating to electrostatic charges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/42—Filling nozzles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
- Jib Cranes (AREA)
Abstract
The invention relates to an alarm device for returning and connecting a loading and unloading crane pipe in place, wherein a self loop of an electrostatic releaser is a first electrostatic loop; the electrostatic releaser and the tank car form a second electrostatic loop through a grounding wire; the first electrostatic loop is switched on, and triggers the first annunciator to send a signal to the controller; the second electrostatic loop is switched on, and triggers the second annunciator to send a signal to the controller; when the loading arm is connected with the feeding interface of the tank car in place, a third annunciator is triggered to send a signal to the controller; the oil filling riser returns to the right position, and the fourth annunciator is triggered to send a signal to the controller; the alarm is arranged in a working loop of the electromagnetic relay KA1 and is a normally closed loop; when the controller receives the signals sent by the first or second annunciators and simultaneously receives the signals sent by the third or fourth annunciators, the alarm does not send out an alarm. According to the technical scheme, the double alarm function that the oil filling riser returns or is not connected in place is realized by only adopting 1 electromagnetic relay, and the complex requirement is realized through a simple structure.
Description
Technical Field
The invention relates to the technical field of chemical production safety, in particular to an alarm device for returning and connecting a loading and unloading filling riser in place.
Background
In the chemical production industry of China, the loading arm is generally used for loading and unloading fluid materials such as gasoline and the like so as to realize the transmission of fluid media between trains, automobiles, ships and the like and storage and transportation pipelines, and has the characteristics of high safety, high flexibility and long service life.
When the loading and unloading of materials are carried out by adopting the loading and unloading arm, if the loading and unloading arm does not return to the right position, the loading and unloading arm is easy to move abnormally under the action of external force (wind, personnel or vehicle misoperation), so that the loading and unloading arm can be broken due to the self gravity or collide with a vehicle on site, and safety accidents are caused; if the loading and unloading crane pipe is not connected in place, or the crane pipe falls off accidentally in the loading and unloading process, material leakage can be caused, and even safety production accidents can be caused. For this reason, luan hair [ 2019 ] 38 is particularly pointed out in "notification of safety production committee on strengthening informatization supervision work of whole process of road transportation of dangerous chemicals" by Shandong province civil government department of people ": the crane pipe connection should be connected with the in-place alarm interlock.
At present, a double alarm system capable of realizing the in-place connection and return of the oil filling riser is not provided in China, so that the oil filling riser with the in-place return and in-place connection alarm device is very necessary to design.
Disclosure of Invention
The invention aims to solve the technical problem of making up the defects of the prior art and provides an alarm device for returning a loading and unloading crane pipe to a proper position and connecting the loading and unloading crane pipe to the proper position.
To solve the technical problems, the technical scheme of the invention is as follows:
an alarm device for loading and unloading a loading and unloading arm to return to the proper position and connect to the proper position comprises an upright post, an arm, an electrostatic releaser, a grounding wire, an electromagnetic relay KA1, an alarm, a controller and a power supply;
the electrostatic releaser forms a first electrostatic loop with a self-loop interface through an electrostatic clamp on a grounding wire; the electrostatic releaser forms a second electrostatic loop with an electrostatic release interface on the tank car through an electrostatic clamp on the grounding wire; when the first electrostatic loop is switched on, triggering a first annunciator to send a signal to a controller; when the second electrostatic loop is switched on, triggering a second annunciator to send a signal to the controller;
a connector is fixed at a discharge hole of the oil filling riser and is used for being connected with a feeding interface of the tank car, and when the connector is connected with the feeding interface of the tank car in place, a third signaler is triggered to send a signal to the controller;
the upright post is used for being fixed on a foundation, a homing hook is fixedly arranged on the upright post, a homing positioner is arranged on the homing hook and used for fixing a joint of a discharge hole of the oil filling riser, and when the oil filling riser returns to the right position, a fourth signal device is triggered to send a signal to the controller;
the electromagnetic relay KA1 comprises a control loop and a working loop, the on-off of the control loop is controlled by a controller, the normally closed contact of the electromagnetic relay KA1, the common contact of the electromagnetic relay KA1, an alarm and a power supply form an alarm working loop, and the alarm working loop is a normally closed loop;
when the controller receives signals sent by the first annunciator or the second annunciator and simultaneously receives signals sent by the third annunciator or the fourth annunciator, the controller controls the control loop of the electromagnetic relay KA1 to be switched on, the electromagnetic relay KA1 controls the alarm working loop to be switched off, and the alarm does not send an alarm.
Furthermore, the first annunciator, the second annunciator, the third annunciator and the fourth annunciator are limit switches.
Further, the alarm is an acousto-optic alarm.
Further, the power supply provides 12V dc.
Furthermore, the connector is KJA or KJB quick-operation joint, including connecting body and latch hook, still includes the latch hook location cutting ferrule with connecting the coaxial setting of body, and latch hook location cutting ferrule is used for the locking location of latch hook.
Further, be equipped with first limiting plate on the joint body that connects, latch hook location cutting ferrule includes second limiting plate and compression spring, and compression spring is used for connecting second limiting plate and first limiting plate, and compression spring takes place elastic displacement and makes latch hook location cutting ferrule obtain axial displacement.
Further, the homing positioner is spring-type.
The invention can achieve the following beneficial effects:
(1) the double alarming function of the non-in-place returning and the non-in-place connecting of the oil filling riser is realized by only adopting 1 electromagnetic relay, so that the material leakage caused by the non-in-place connecting of the oil filling riser and the damage of the oil filling riser caused by the non-in-place returning of the oil filling riser are effectively avoided, and the alarming of four dangerous factors of the non-in-place connecting of the oil filling riser, the non-in-place returning of the oil filling riser, the non-in-place electrostatic connecting and the non-in-place electrostatic returning are organically integrated, thereby greatly improving the safety factor, reducing the accident occurrence probability, realizing the complex requirement through a simple structure and having low cost;
(2) the power supply supplies power with 12V safety voltage, so that potential safety hazards of power utilization are prevented;
(3) the locking hook positioning clamping sleeve is arranged, so that the accidental springing-off of the locking hook of the quick connector in the unloading process is effectively prevented on the premise of not increasing the use difficulty of the quick connector, the probability of material leakage accidents is reduced, and the safety factor is further improved.
Drawings
FIG. 1 is a schematic view of the position of the loading arm returning to the right position in the embodiment of the present invention;
FIG. 2 is a schematic view of the crane pipe in the embodiment of the present invention;
FIG. 3 is a schematic view illustrating a locking position of a locking hook in the quick coupling according to an embodiment of the present invention;
FIG. 4 is a schematic view of the embodiment of the present invention showing the locking hook of the quick connector released;
FIG. 5 is a schematic view of a homing device and homing hook in an embodiment of the present invention;
FIG. 6 is a circuit diagram in an embodiment of the invention;
in the figure: the device comprises a tank car 1, a tank car 2, a feeding interface 2, a static eliminating joint 3, a grounding wire 4, a static electricity releaser 5, a vertical column 6, a homing hook 7, a crane pipe 8, a homing positioner 9, a joint body 121, a lock hook 122, a lock hook positioning sleeve 123, a second limit plate 124, a compression spring 125 and a first limit plate 126.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Examples
An alarm device for loading and unloading a loading and unloading arm to return to the proper position and connect to the proper position comprises an upright post 6, an arm 8, an electrostatic releaser 5, a grounding wire 4, an electromagnetic relay KA1, an alarm, a controller and a power supply;
the electrostatic releaser 5 forms a first electrostatic loop with a self-loop interface through an electrostatic clamp on the grounding wire 4; the electrostatic releaser 5 forms a second electrostatic loop with an electrostatic discharge interface on the tank car through an electrostatic clamp on the grounding wire 4; when the first electrostatic loop is switched on, the limit switch K1 sends a signal to the controller; when the second electrostatic loop is switched on, the limit switch K2 sends a signal to the controller;
a connector is fixed at a discharge port of the oil filling riser 8 and is used for being connected with a feeding interface 2 of the tank car 1, and when the connector is connected with the feeding interface 2 of the tank car 1 in place, a limit switch K3 sends a signal to a controller;
the upright post 6 is used for being fixed on a foundation, a homing hook 7 is fixedly arranged on the upright post 6, a spring homing positioner 9 is arranged on the homing hook 7, the homing positioner 9 is used for fixing a joint of a discharge hole of a loading arm 8, and when the loading arm 8 is in place, a limit switch K4 sends a signal to a controller;
the electromagnetic relay KA1 comprises a control loop and a working loop, the on-off of the control loop is controlled by a controller, the normally closed contact of the electromagnetic relay KA1, the common contact of the electromagnetic relay KA1, an alarm and a power supply form an alarm working loop, and the alarm working loop is a normally closed loop;
when the controller receives signals sent by the limit switch K1 or the limit switch K2 and simultaneously receives signals sent by the limit switch K3 or the limit switch K4, the controller controls the control loop of the electromagnetic relay KA1 to be switched on, the electromagnetic relay KA1 controls the alarm working loop to be switched off, and the alarm does not give an alarm.
On the premise of ensuring basic functions, in order to ensure the safety of electricity utilization, a power supply provides 12V direct current.
In the discharging process, the lock hook of the quick connector can be accidentally opened sometimes, so that materials are leaked, on the premise that the use difficulty of the quick connector is not increased, in order to effectively prevent the lock hook from being accidentally opened, reduce the probability of material leakage accidents and further improve the safety factor, the connector is selected from KJA or KJB quick connectors and comprises a connector body 121 and a lock hook 122, on the basis of a traditional KJA or KJB quick connector, a lock hook positioning sleeve 123 which is coaxial with the connector body 121 is particularly added, and the lock hook positioning sleeve 123 is used for locking and positioning the lock hook 122; the connector body 121 of the connector is provided with a first limiting plate 126, the locking hook positioning clamping sleeve 123 comprises a second limiting plate 124 and a compression spring 125, the compression spring 125 is used for connecting the second limiting plate 124 and the first limiting plate 126, and the compression spring 125 generates elastic displacement to enable the locking hook positioning clamping sleeve 123 to move axially.
Use of this example:
(1) initial state: the electrostatic releaser 5 forms a first electrostatic loop with a self-loop interface through an electrostatic clamp on the grounding wire 4, and the limit switch K1 sends a signal to the controller; the oil filling riser 8 returns to the right position, the limit switch K4 sends a signal to the controller, the controller controls the control loop of the electromagnetic relay KA1 to be conducted, the alarm working loop is disconnected, and the alarm does not give an alarm.
(2) The vehicle is grounded in place: the first electrostatic loop is disconnected, the controller cannot receive signals sent by the limit switch K1 and cannot receive signals sent by the limit switch K2 at the moment, the controller controls the control loop of the electromagnetic relay KA1 to be disconnected, the alarm working loop is connected, and the alarm gives an alarm; then, an electrostatic clamp on the grounding wire 4 is connected with an electrostatic discharge interface on the tank car to form a second electrostatic loop, the limit switch K2 sends a signal to the controller, the controller controls the control loop of the electromagnetic relay KA1 to be switched on, the alarm working loop is switched off, and the alarm does not give an alarm.
(3) The crane pipe is connected in place: the loading arm 8 is separated from the homing positioner 9 and is taken down from the homing hook 7, the controller can not receive the signal sent by the limit switch K4 and the signal sent by the limit switch K3, the controller controls the control loop of the electromagnetic relay KA1 to be disconnected, the alarm working loop is connected, and the alarm gives an alarm; then, the joint of the discharge hole of the loading arm 8 is connected with the feeding interface 2 of the tank car 1 in place, the limit switch K3 sends a signal to the controller, the controller controls the control loop of the electromagnetic relay KA1 to be switched on, the alarm working loop is switched off, and the alarm does not give an alarm.
(4) Returning the oil filling riser to the proper position: the joint of the discharge hole of the loading arm 8 is separated from the feeding interface 2 of the tank car 1, the controller can not receive the signal sent by the limit switch K3 and also can not receive the signal sent by the limit switch K4, the controller controls the control loop of the electromagnetic relay KA1 to be disconnected, the alarm working loop is connected, and the alarm gives an alarm; then, the loading arm 8 is placed on the homing hook 7 and is fixedly connected with the homing positioner 9, the limit switch K4 sends a signal to the controller, the controller controls the control loop of the electromagnetic relay KA1 to be conducted, the alarm working loop is disconnected, and the alarm does not give an alarm.
(5) Electrostatic grounding returns to the place: the electrostatic clamp on the ground wire 4 is disconnected with the electrostatic discharge interface on the tank car, the second electrostatic loop is disconnected, the controller cannot receive the signal sent by the limit switch K2 or the signal sent by the limit switch K1, the controller controls the control loop of the electromagnetic relay KA1 to be disconnected, the alarm working loop is connected, and the alarm gives an alarm; then, the electrostatic clamp on the grounding wire 4 is connected with the self-loop interface, the first electrostatic loop is conducted, the limit switch K1 sends a signal to the controller, the controller controls the control loop of the electromagnetic relay KA1 to be conducted, the alarm working loop is disconnected, the alarm does not give an alarm, and the state returns to the initial state.
The advantages of this embodiment are as follows:
(1) the double alarming function of the non-in-place returning and the non-in-place connecting of the oil filling riser is realized by only adopting 1 electromagnetic relay, so that the material leakage caused by the non-in-place connecting of the oil filling riser and the damage of the oil filling riser caused by the non-in-place returning of the oil filling riser are effectively avoided, and the alarming of four dangerous factors of the non-in-place connecting of the oil filling riser, the non-in-place returning of the oil filling riser, the non-in-place electrostatic connecting and the non-in-place electrostatic returning are organically integrated, thereby greatly improving the safety factor, reducing the accident occurrence probability, realizing the complex requirement through a simple structure and having low cost;
(2) the power supply supplies power with 12V safety voltage, so that potential safety hazards of power utilization are prevented;
(3) the locking hook positioning clamping sleeve is arranged, so that the accidental springing-off of the locking hook of the quick connector in the unloading process is effectively prevented on the premise of not increasing the use difficulty of the quick connector, the probability of material leakage accidents is reduced, and the safety factor is further improved.
In the description of the present invention, words such as "inner", "outer", "upper", "lower", "front", "rear", etc., indicating orientations or positional relationships, are used for convenience in describing the present invention, and do not indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The above description is only one embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the spirit of the present invention.
Claims (7)
1. The utility model provides a be used for loading and unloading oil filling riser to return to target in place and connect alarm device who targets in place, characterized by: the device comprises a stand column (6), a loading arm (8), an electrostatic releaser (5), a grounding wire (4), an electromagnetic relay KA1, an alarm, a controller and a power supply;
the electrostatic releaser (5) forms a first electrostatic loop with a self-loop interface through an electrostatic clamp on the grounding wire (4); the electrostatic releaser (5) forms a second electrostatic loop with an electrostatic release interface on the tank car through an electrostatic clamp on the grounding wire (4); when the first electrostatic loop is switched on, triggering a first annunciator to send a signal to a controller; when the second electrostatic loop is switched on, triggering a second annunciator to send a signal to the controller;
a connector is fixed at a discharge hole of the oil filling riser (8), the connector is used for being connected with a feeding interface (2) of the tank car (1), and when the connector is connected with the feeding interface (2) of the tank car (1) in place, a third annunciator is triggered to send signals to a controller;
the upright post (6) is used for being fixed on a foundation, a homing hook (7) is fixedly arranged on the upright post (6), a homing positioner (9) is arranged on the homing hook (7), the homing positioner (9) is used for fixing a joint of a discharge hole of the oil filling riser (8), and when the oil filling riser (8) is returned to the place, a fourth signaler is triggered to send a signal to the controller;
the electromagnetic relay KA1 comprises a control loop and a working loop, the on-off of the control loop is controlled by a controller, the normally closed contact of the electromagnetic relay KA1, the common contact of the electromagnetic relay KA1, an alarm and a power supply form an alarm working loop, and the alarm working loop is a normally closed loop;
when the controller receives signals sent by the first annunciator or the second annunciator and simultaneously receives signals sent by the third annunciator or the fourth annunciator, the controller controls the control loop of the electromagnetic relay KA1 to be switched on, the electromagnetic relay KA1 controls the alarm working loop to be switched off, and the alarm does not send an alarm.
2. The alarm device for loading and unloading crane pipe returning to and connecting to the right position as claimed in claim 1, wherein: the first annunciator, the second annunciator, the third annunciator and the fourth annunciator are limit switches.
3. The alarm device for loading and unloading crane pipe returning to and connecting to the right position as claimed in claim 1, wherein: the alarm is an acousto-optic alarm.
4. The alarm device for loading and unloading crane pipe returning to and connecting to the right position as claimed in claim 1, wherein: the power supply provides 12V dc.
5. The alarm device for loading and unloading crane pipe returning to and connecting to the right position as claimed in claim 1, wherein: the connector is KJA or KJB quick connector, and comprises a connector body (121) and a lock hook (122), and further comprises a lock hook positioning clamping sleeve (123) coaxially arranged with the connector body (121), wherein the lock hook positioning clamping sleeve (123) is used for locking and positioning the lock hook (122).
6. The alarm device for loading and unloading crane pipe returning to and connecting to the right position as claimed in claim 5, wherein: be equipped with first limiting plate (126) on joint body (121) that connects, latch hook location cutting ferrule (123) includes second limiting plate (124) and compression spring (125), and compression spring (125) are used for connecting second limiting plate (124) and first limiting plate (126), and elastic displacement takes place in compression spring (125) and makes latch hook location cutting ferrule (123) obtain axial displacement.
7. The alarm device for loading and unloading crane pipe returning to and connecting to the right position as claimed in claim 1, wherein: the homing positioner (9) is spring-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011129747.9A CN112265952B (en) | 2020-10-21 | 2020-10-21 | Alarm device for loading and unloading crane pipe returning to and connecting to position |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011129747.9A CN112265952B (en) | 2020-10-21 | 2020-10-21 | Alarm device for loading and unloading crane pipe returning to and connecting to position |
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| Publication Number | Publication Date |
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| CN112265952A CN112265952A (en) | 2021-01-26 |
| CN112265952B true CN112265952B (en) | 2021-04-23 |
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| CN202011129747.9A Active CN112265952B (en) | 2020-10-21 | 2020-10-21 | Alarm device for loading and unloading crane pipe returning to and connecting to position |
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| Publication number | Publication date |
|---|---|
| CN112265952A (en) | 2021-01-26 |
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