CN212832812U - Alarm device for loading and unloading loading arm returning to and connecting to place - Google Patents
Alarm device for loading and unloading loading arm returning to and connecting to place Download PDFInfo
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- CN212832812U CN212832812U CN202021484246.8U CN202021484246U CN212832812U CN 212832812 U CN212832812 U CN 212832812U CN 202021484246 U CN202021484246 U CN 202021484246U CN 212832812 U CN212832812 U CN 212832812U
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- relay
- place
- oil filling
- filling riser
- loading
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Abstract
The utility model belongs to the technical field of chemical production safety, concretely relates to an alarm device that is used for loading and unloading oil filling riser to return to target in place and connect and target in place. Including tank car, oil filling riser and relay, the tank car passes through the earth connection and connects electrostatic discharge ware, still is equipped with relay KA1 between electrostatic discharge ware and the tank car, and electrostatic discharge ware is established on the stand, is equipped with oil filling riser and oil filling riser on the stand and returns the couple, the tail end of oil filling riser is connected with the discharge opening of tank car, is equipped with relay KA2 between oil filling riser and the discharge opening, it is equipped with the switch that targets in place to return to couple department, switch, relay KA1, relay KA2 that targets in place to return pass through relay KA3 connection control alarm lamp, and operating personnel can in time cut off the feed valve on the oil filling riser according to the alarm lamp signal, avoids producing the material leakage phenomenon, and further avoids shifting or the incident that drops and produce because of the.
Description
Technical Field
The utility model belongs to the technical field of chemical production safety, concretely relates to an alarm device that is used for loading and unloading oil filling riser to return to target in place and connect and target in place.
Background
In the chemical production industry of China, universal loading and unloading oil products need universal loading and unloading oil pipes for loading and unloading oil products, or loading automobiles, trains and ships. In the process, if the crane pipe is not connected in place or returns to the place, the material is easy to leak, and safety accidents are caused. Luan hair [ 2019 ] 38, the article "notice of informatization supervision work of civil government department of Shandong province and civil government department about strengthening the whole process of road transportation of dangerous chemicals": the crane pipe connection should be connected with the in-place alarm interlock. However, at present, a double alarm system capable of realizing the in-place connection and return of a crane pipe is not provided in China, and in the process of using the crane pipe, if the crane pipe does not return to the place according to requirements after the crane pipe is assembled and disassembled, the crane pipe is easy to move abnormally under the action of external force (wind, personnel or vehicle misoperation), so that the crane pipe is broken due to self gravity or collides with a vehicle on site to cause danger; in addition, if the loading and unloading process is not connected in place or the loading and unloading process is in a falling state, material leakage is easy to occur, and therefore serious safety production accidents are caused.
Therefore, it is necessary to design the alarm device with returning and connecting functions to be applied to the crane pipe.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a return alarm device who targets in place and connect and target in place for loading and unloading oil filling riser not enough to the problem of the utility model.
The utility model discloses a realize through following technical scheme: the utility model provides an alarm device for loading and unloading arm returns to targetting in place and connecting to target in place, includes tank car, arm and relay, its characterized in that, the tank car passes through the earth connection and connects electrostatic discharge ware, still is equipped with relay KA1 between electrostatic discharge ware and the tank car, and electrostatic discharge ware is established on the stand, is equipped with arm and arm on the stand and returns the couple, the tail end of arm is connected with the discharge opening of tank car, is equipped with relay KA2 between arm and the discharge opening, it is equipped with the switch that targets in place to return couple department, switch, relay KA1, relay KA2 that targets in place pass through relay KA3 connection control alarm lamp.
Preferably, the oil filling riser and the discharge opening are made of metal materials, and the oil filling riser body and the discharge opening are connected to form a connection in-place signal. When the oil filling riser body and the discharge opening are connected in place, the oil filling riser body, the discharge opening and the relay KA2 form a closed loop to enable the relay KA2 to be electrified; when the oil filling riser body is not connected with the discharge opening in place, the relay KA2 loses power.
Preferably, the circuit device of the device comprises an electrostatic grounding signal, and the electrostatic grounding signal is connected with a relay KA1 in series to form a first branch circuit; the in-place signal series relay KA2 is connected to form a second branch; the normally open contact of the relay KA1, the normally open contact of the relay KA2 and the normally open signal of the in-place switch are connected in parallel and then connected with the relay KA3 to form a third branch, and the normally closed contact of the relay KA3 is connected with the alarm to form a fourth branch.
Preferably, the return-to-position switch is a spring switch.
In addition, a feeding valve is arranged on the oil filling riser, and an operator can cut off the feeding valve in time according to the alarm signal.
The utility model has the advantages that:
1. the device controls the relay KA1 through a grounding wire connected between the tank car and the electrostatic releaser, and the grounding wire is connected to form a closed loop with the relay KA1, the relay KA1 is electrified, otherwise, the relay KA1 is not electrified;
2. the device adopts the oil filling riser and the filling port which are made of metal materials, so that the connection of the oil filling riser and the filling port and the relay KA2 form a closed loop, the oil filling riser is connected to the relay KA2 in place and is electrified, and otherwise, the relay KA2 is electrified;
3. the relay KA4 is controlled by the device through the relay KA1, the relay KA2 and the in-place switch together, and the alarm lamp is triggered by the normally closed signal of the relay KA4, so that an operator can cut off a feed valve on the oil filling riser in time according to the alarm signal, the material leakage phenomenon is avoided, and the safety accident caused by the displacement or falling off of the oil filling riser is further avoided;
4. the device has simple structure and low investment cost; in addition, the device is powered by the safe voltage of 12V, so that potential safety hazards of electricity utilization are avoided;
5. the alarm lamp of the device adopts the acousto-optic alarm lamp, so that the operator is doubly reminded of sound and light, and the alarm effect is obvious.
Drawings
FIG. 1 is a schematic structural view of the crane pipe of the present invention;
FIG. 2 is a schematic structural view of the loading arm of the present invention;
fig. 3 is a schematic diagram of the circuit device of the present invention;
in the attached figure, 1 oil filling riser, 2 tank cars, 3 earth connection, 4 stands, 5 electrostatic releasers, 6 oil filling riser return hooks, 7 return-to-place switches, 8 discharge openings and 9 alarm lamps.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, an alarm device for returning to and connecting a loading and unloading loading arm in place comprises a tank truck 2, a loading arm 1 and a relay, wherein the tank truck 2 is connected with an electrostatic releaser 5 through a grounding wire 3, specifically, a wire clamp is mounted on the tank truck 2 and is connected with the electrostatic releaser 5 through the grounding wire 3, the relay KA1 is further arranged between the electrostatic releaser 5 and the tank truck 2, the electrostatic releaser 5 is arranged on an upright post 4, when two ends of the grounding wire 3 are respectively connected with the tank truck 2 and the electrostatic releaser 5 to be conducted, the relay KA1 is electrified, and if any one end of the grounding wire 3 is not connected or the middle of the grounding wire 3 is disconnected and not conducted, the relay KA1 is electrified;
still be equipped with oil filling riser 1 and oil filling riser on the stand 4 and return couple 6, the tail end of oil filling riser 1 is connected with the discharge opening 7 of tank car 2, is equipped with relay KA2 between oil filling riser 1 and the discharge opening 7, it puts in place switch 7 to return to 6 departments of couple, switch 7, relay KA1, relay KA2 put in place through relay KA3 connection control alarm lamp 9.
The oil filling riser 1 and the discharge opening 7 are made of metal materials, a conduction loop of the oil filling riser 1 is connected in place by the aid of the metal materials, a connection in place signal is formed by connection of an oil filling riser 1 body and discharge, namely when the oil filling riser 1 body and the discharge opening 7 are connected in place, the oil filling riser 1 body, the discharge opening 7 and the relay KA2 form a closed loop to enable the relay KA2 to be electrified; when the body of the oil filling riser 1 is not connected with the discharge opening 7 in place, the body of the oil filling riser 1, the discharge opening 7 and the relay mechanism do not form a closed loop, so that the relay KA2 is powered off.
As shown in fig. 3, the control circuit device of the device comprises an electrostatic grounding signal, wherein the electrostatic grounding signal is connected with a relay KA1 in series to form a first branch circuit; the in-place signal series relay KA2 is connected to form a second branch; the normally open contact of the relay KA1, the normally open contact of the relay KA2 and the normally open signal of the in-place switch 7 are connected in parallel and then connected with the relay KA3 to form a third branch, and the normally closed contact of the relay KA3 is connected with the alarm to form a fourth branch.
When static earth signal, connect the signal that targets in place and return to when the signal three of targeting in place had any one not satisfied promptly, relay KA3 just is in the power failure state, and according to relay theory of operation this moment, relay KA 3's normally closed contact is in the holding state, and the alarm lamp 9 return circuit switches on this moment, and alarm lamp 9 just begins the dual warning of sound and light, is equipped with the feed valve on the oil filling riser 1, and operating personnel in time stops the feed valve according to alarm signal to prevent to produce material leakage or other incident.
In addition, the in-place switch 7 adopts a spring switch, namely when the oil filling riser 1 is in place, a spring of the spring switch is in a compressed state under the pressure of the oil filling riser 1, the spring switch is closed, and when the oil filling riser 1 is not in place, the spring switch is in an off state.
When the alarm is used, when the electrostatic grounding signal, the connection in-place signal and the return-to-place signal are all met, the relay KA3 is electrified, the normally closed contact of the relay KA3 is disconnected, and the alarm does not work; when any one of the electrostatic grounding signal, the connection in-place signal and the in-place signal is not met, the relay KA3 is powered off, the normally closed contact of the relay KA3 is kept in the original closed state, and the alarm gives an audible and visual alarm.
Other technical features than those described in the specification are known to those skilled in the art.
Claims (4)
1. The utility model provides a warning device for loading and unloading oil filling riser returns to targetting in place and connecting to target in place, includes tank car (2), oil filling riser (1) and relay, its characterized in that, tank car (2) are connected electrostatic discharge ware (5) through earth connection (3), still are equipped with relay KA1 between electrostatic discharge ware (5) and tank car (2), and electrostatic discharge ware (5) are established on stand (4), are equipped with oil filling riser (1) and oil filling riser on stand (4) and return couple (6), the tail end of oil filling riser (1) is connected with discharge opening (8) of tank car (2), is equipped with relay KA2 between oil filling riser (1) and discharge opening (8), and oil filling riser returns couple (6) department and is equipped with switch (7) that targets in place, switch (7), relay KA1, relay KA2 are through relay KA3 connection control alarm lamp (9).
2. The alarm device for loading and unloading crane pipe returning to and connecting in place according to claim 1, characterized in that the crane pipe (1) and the discharge opening (8) are made of metal, and the crane pipe body and the discharge opening (8) are connected to form a signal of being connected in place.
3. An alarm device for returning a loading arm to a proper position and connecting the loading arm to a proper position as claimed in claim 1 or 2, wherein the circuit device comprises an electrostatic grounding signal which is connected with the relay KA1 in series to form a first branch circuit; the in-place signal series relay KA2 is connected to form a second branch; the normally open contact of the relay KA1, the normally open contact of the relay KA2 and the normally open signal of the in-place switch (7) are connected in parallel and then connected with the relay KA3 to form a third branch, and the normally closed contact of the relay KA3 is connected with the alarm to form a fourth branch.
4. The alarm device for loading and unloading crane pipe returning to the in-place and connecting in the in-place according to claim 1, characterized in that the in-place switch (7) adopts a spring switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021484246.8U CN212832812U (en) | 2020-07-24 | 2020-07-24 | Alarm device for loading and unloading loading arm returning to and connecting to place |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021484246.8U CN212832812U (en) | 2020-07-24 | 2020-07-24 | Alarm device for loading and unloading loading arm returning to and connecting to place |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212832812U true CN212832812U (en) | 2021-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021484246.8U Active CN212832812U (en) | 2020-07-24 | 2020-07-24 | Alarm device for loading and unloading loading arm returning to and connecting to place |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212832812U (en) |
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2020
- 2020-07-24 CN CN202021484246.8U patent/CN212832812U/en active Active
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