CN215761005U

CN215761005U - Remote control safety interlocking system for horizontal type clamp blind plate

Info

Publication number: CN215761005U
Application number: CN202121789337.7U
Authority: CN
Inventors: 吴燕; 曹志; 宫宏卓; 闫晓飞
Original assignee: Shenyang Yongye Industrial Co ltd
Current assignee: Shenyang Yongye Industrial Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2022-02-08
Anticipated expiration: 2031-08-03

Abstract

The utility model relates to a remote control safety interlock system for a horizontal hoop blind plate, wherein a limiting plate is connected to the surface of a hoop, the inner end of the limiting plate is connected with a cover plate through a safety screw, a micro cylinder is arranged on the outer surface of the cover plate, a piston rod of the micro cylinder is connected with a baffle, and the baffle is close to the outer surface of the safety screw; the driving circuit of the micro cylinder is remotely connected with an external control mechanism through an electromagnetic valve. This safety interlock system adopts the miniature cylinder action of electrical control, avoids operating personnel's maloperation, has avoided dangerous emergence, the safety of guarantee life, property that can be better.

Description

Remote control safety interlocking system for horizontal type clamp blind plate

Technical Field

The utility model relates to a remote control safety interlocking system for a horizontal hoop blind plate, belonging to the technical field of auxiliary operating devices of quick-opening pressure vessels.

Background

The horizontal hoop blind plate is an important part in a quick-opening pressure container and is mainly characterized by mature structure and stable operation. The pressure vessel is mainly used in petroleum, petrochemical and natural gas industries and is also suitable for other pressure vessels which need to be opened frequently.

Along with the rapid development of petroleum, petrochemical and natural gas storage and transportation technologies in China, the clamp blind plate is more and more widely applied to various industries, and especially under the condition that the medium in a pressure container is more harmful, the requirements on safety accessories of the clamp blind plate are gradually improved.

Because it is influenced by the inside residual pressure of pressure vessel of traditional mechanical interlock, and its action pressure precision is lower, and is at least tens kpa to several hundreds kpa different, when the medium harm degree of splendid attire was great in the pressure vessel like this, operating personnel's life health will have very big potential safety hazard.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a remote control safety interlocking system for a horizontal hoop blind plate, wherein the safety interlocking system adopts an electric control micro cylinder to act, so that misoperation of operators is avoided, danger is avoided, and safety of life and property can be better guaranteed.

In order to solve the above problems, the specific technical scheme of the utility model is as follows: a teletransmission control safety interlock system for a horizontal hoop blind plate is characterized in that a limiting plate is connected to the surface of a hoop, the inner end of the limiting plate is connected with a cover plate through a safety screw, a micro cylinder is arranged on the outer surface of the cover plate, a piston rod of the micro cylinder is connected with a baffle, and the baffle is close to the outer surface of the safety screw; the driving circuit of the micro cylinder is remotely connected with an external control mechanism through an electromagnetic valve.

The baffle on be equipped with the tablet of perpendicular to apron, at limiting plate external connection proximity switch I, proximity switch I's position corresponds with the position of tablet, proximity switch I and outside control mechanism remote connection.

The outer surface of the cover plate is provided with a pre-buried proximity switch, and the safety screw shields the sensing head of the pre-buried proximity switch.

The cover plate and the clamp are movably connected through a pin shaft on the lug piece structure, a door opening limiting pin is arranged on the lug piece structure, and the door opening limiting pin is inserted into the lug piece structures of the cover plate and the clamp simultaneously.

The clamp lug structure is respectively provided with a proximity switch II and a proximity switch III, and the lug structure of the cover plate is respectively provided with a door closing induction plate and a door opening induction plate; when the cover plate is buckled with the hoop, the proximity switch II is contacted with the door closing induction plate; when the cover plate and the clamp are opened and form an included angle of 90 degrees, the proximity switch III is in contact with the door opening sensing plate, and the proximity switch II and the proximity switch III are remotely connected with an external control mechanism.

This horizontal clamp is baffle that teletransmission control safety interlock system for blind plate adopted micro cylinder to drive has sheltered from to the essential part safety screw that the apron was opened to when preventing to have pressure in the container, by the maloperation of artificial opening, effectively realized safety in production.

In order to ensure that the remote control is realized, three proximity switches are arranged at different positions, and the bottom of the safety screw is provided with a pre-embedded proximity switch so as to realize the control and monitoring of the cover plate in two states of opening or closing.

Drawings

FIG. 1 is a front view of a horizontal blind clamp teleoperated safety interlock system.

Fig. 2 is a plan view of the cover plate of the present application in a closed state.

Fig. 3 is a plan view of the cover plate of the present application in an open state.

Fig. 4 is a sectional view of the extended state of the piston rod of the micro cylinder.

Detailed Description

As shown in fig. 1 to 4, in the remote control safety interlock system for the horizontal hoop blind plate, a limiting plate 2 is connected to the surface of a hoop 1, the inner end of the limiting plate 2 is connected with a cover plate 4 through a safety screw 3, a micro cylinder 5 is arranged on the outer surface of the cover plate 4, a piston rod of the micro cylinder 5 is connected with a baffle 6, and the baffle 6 is close to the outer surface of the safety screw 3; the driving circuit of the micro cylinder 5 is remotely connected with an external control mechanism through the electromagnetic valve 7. When the piston rod of the micro cylinder 5 extends out, the baffle 6 shields the reimbursement bolt 3, so that manual misoperation is prevented.

Baffle 6 on be equipped with the tablet 8 of perpendicular to apron 4, at 2 external connection proximity switch I11 of limiting plate, proximity switch I11's position corresponds with tablet 8's position, proximity switch I11 and outside control mechanism remote connection to when realizing having pressure in the container, the micro cylinder does not act, prevents personnel's maloperation. The outer surface of the cover plate 4 is provided with an embedded proximity switch 16, the safety screw 3 shields a sensing head of the embedded proximity switch 16, and the embedded proximity switch 16 is used for judging whether the safety screw 3 is installed in place.

The cover plate 4 and the clamp 1 are movably connected through a pin shaft 9 on the lug plate structure, a door opening limiting pin 10 is arranged on the lug plate structure, and the door opening limiting pin 10 is inserted into the lug plate structures of the cover plate 4 and the clamp 1 simultaneously. When the cover plate 4 is opened, the door opening limiting pin 10 needs to be pulled out in advance, so that the safety of opening the pressure container is improved.

The lug structure of the hoop 1 is respectively provided with a proximity switch II 12 and a proximity switch III 13, and the lug structure of the cover plate 4 is respectively provided with a door closing induction plate 14 and a door opening induction plate 15; when the cover plate 4 is buckled with the hoop 1, the proximity switch II 12 is contacted with the door closing induction plate 14; when the cover plate 4 and the clamp 1 are opened and form an included angle of 90 degrees, the proximity switch III 13 is in contact with the door opening sensing plate 15, and the proximity switch II 12 and the proximity switch III 13 are remotely connected with an external control mechanism. And the proximity switch II 12 and the proximity switch III 13 are used for judging whether the cover plate is in an opening or closing state, so that the control accuracy of the control system on the micro cylinder is ensured.

The application discloses horizontal clamp is teletransmission control safety interlock system working process for blind plate does: during normal apron 4 closed condition, safety screw 3 inserts with the spacer pin 10 that opens the door and targets in place, and miniature cylinder 5's piston rod is for stretching out the state, and baffle 6 shelters from safety screw 3, and proximity switch I11 is pressed close to tablet 8 simultaneously. After pressure relief is completed in the pressure container, after an external control system sends a signal to the electromagnetic valve 7, the electromagnetic valve 7 controls the piston rod of the micro cylinder 5 to retract, the baffle 6 is driven to open the safety screw 3, the safety screw 3 is unscrewed, the door opening limiting pin 10 is pulled out, the cover plate 4 can be opened, the door closing induction plate 14 is far away from the proximity switch II 12, the door opening induction plate 15 is close to the proximity switch III 13, and the remote control system records that the cover plate is in an opening state. After equipment closes again, closing door tablet 14 and pressing close to proximity switch II 12, and pre-buried proximity switch 16 judges that safety screw 3 installs in place, starts the miniature cylinder, shelters from safety screw 3 with baffle 6 once more and prevents artificial maloperation, and proximity switch I11 judges that tablet 8 is close to simultaneously, shelters from the work completion promptly, stops miniature cylinder 5 action.

Claims

1. The utility model provides a horizontal clamp is teletransmission control safety interlock system for blind plate, connects limiting plate (2) on the surface of clamp (1), and limiting plate (2) the inner is connected its characterized in that with apron (4) through safety screw (3): a micro cylinder (5) is arranged on the outer surface of the cover plate (4), a piston rod of the micro cylinder (5) is connected with a baffle plate (6), and the baffle plate (6) is close to the outer surface of the safety screw (3); the driving circuit of the micro cylinder (5) is remotely connected with an external control mechanism through an electromagnetic valve (7).

2. The teleoperated safety interlock system for a horizontal clamp blind of claim 1, wherein: baffle (6) on be equipped with tablet (8) of perpendicular to apron (4), at limiting plate (2) external connection proximity switch I (11), the position of proximity switch I (11) corresponds with the position of tablet (8), proximity switch I (11) and outside control mechanism remote connection.

3. The teleoperated safety interlock system for a horizontal clamp blind of claim 2, wherein: the outer surface of the cover plate (4) is provided with an embedded proximity switch (16), and the safety screw (3) shields a sensing head of the embedded proximity switch (16).

4. The teleoperated safety interlock system for a horizontal clamp blind of claim 1, wherein: the novel door opening limiting device is characterized in that the cover plate (4) is movably connected with the clamp (1) through a pin shaft (9) on the lug plate structure, a door opening limiting pin (10) is arranged on the lug plate structure, and the door opening limiting pin (10) is inserted into the lug plate structure of the cover plate (4) and the clamp (1) simultaneously.

5. The teleoperated safety interlock system for horizontal clamp blind of claim 4, wherein: the lug structure of the hoop (1) is respectively provided with a proximity switch II (12) and a proximity switch III (13), and the lug structure of the cover plate (4) is respectively provided with a door closing induction plate (14) and a door opening induction plate (15); when the cover plate (4) is buckled with the hoop (1), the proximity switch II (12) is contacted with the door closing induction plate (14); when the cover plate (4) and the clamp (1) are opened and form an included angle of 90 degrees, the proximity switch III (13) is contacted with the door opening sensing plate (15), and the proximity switch II (12) and the proximity switch III (13) are remotely connected with an external control mechanism.