CN118167800B - Dangerous chemical loading process is with monitoring and emergency shutdown processing apparatus - Google Patents

Abstract

The invention relates to the technical field of emergency cutting of dangerous wastes, in particular to a monitoring and emergency cutting treatment device for a dangerous chemical loading process, which comprises the following components: the valve main pipeline, the valve auxiliary pipeline, the cut-off pipeline, the first flange, the cut-off mechanism and the pressure sensor; the valve auxiliary pipe and the cut-off pipeline are integrally cast and connected to the valve main pipe and are mutually communicated, and the cut-off pipeline is positioned at the left side of the valve auxiliary pipe; the first flanges are two. The pressure sensor arranged on the main pipeline of the valve is utilized to analyze pressure data in the pipeline, and is connected with the connected valve push rod through signals to control the valve push rod to operate, so that when the pressure in the pipeline is abnormally changed, the valve electric push rod is pushed to operate and shrink, the connecting rod is driven to move and drive the push rod to move, the second cut-off plug is moved and is attached to the first cut-off plug, the internal cut-off of the main pipeline of the valve is realized, and the cut-off effect is realized.

Description

Dangerous chemical loading process is with monitoring and emergency shutdown processing apparatus

Technical Field

The invention relates to the technical field of emergency cutting of dangerous wastes, in particular to a monitoring and emergency cutting treatment device for a dangerous chemical loading process.

Background

The security of road transportation of dangerous goods is a major topic related to public security of society, and is always concerned by countries around the world. Because dangerous goods have special physical and chemical properties such as inflammable, explosive, candles, poison and the like, the dangerous goods in the road transportation process are equivalent to a mobile dangerous source, and once accidents occur, huge economic loss, casualties and environmental pollution can be caused. In addition, the leakage is caused by the continuous loss of energy and materials, and various liquid media with toxicity, harm, strong corrosiveness, flammability, explosive property, high temperature and high pressure are continuously leaked out, so that environmental pollution is caused, and fire, explosion, poisoning and personal casualty accidents are caused.

The utility model discloses an emergency stop valve for dangerous chemicals transportation vehicle in its patent number CN111750150A, including the trip valve main part, the inside echelonment structure that is big-end-up in trip valve main part, trip valve main part one side integrated into one piece has the branch pipe, the branch pipe is linked together with inside the trip valve main part, trip valve main part below fixed mounting has the casing, fixed mounting has the elastic diaphragm in the casing, the elastic diaphragm divide into two upper and lower cavities with the casing, the intake pipe is installed to the casing lower terminal surface, a plurality of first side openings have been seted up to the lateral wall on slip valve clack upper portion, the via hole has been seted up on the first sealing bench, the promotion valve rod wears to establish in the via hole, second slope annular has still been seted up on the first sealing bench, promotion valve rod upper end integrated into one piece has the second sealing bench, the second sealing bench is located the second slope annular, trip valve main part top fixed mounting has the second filter. The purpose is that: solves the problem of troublesome use caused by the structural defect of the emergency cut-off valve.

However, in the prior art, when hazardous chemicals are leaked, a person is required to judge and block the hazardous chemicals, which causes hysteresis in blocking, so in order to improve blocking efficiency, a monitoring and emergency cutting processing device for a hazardous chemicals loading process is proposed.

In addition, when some relatively viscous liquid hazardous substances are loaded, some block structures and other foreign matters are generated in the hazardous substances due to long-time transportation, temperature and the like, and further blockage and influence on the quality of raw materials are generated, so that the foreign matters are usually required to be filtered and removed.

Disclosure of Invention

The invention aims to provide a monitoring and emergency cutting-off processing device for a dangerous chemical loading process, so as to solve the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions:

a hazardous chemical substance loading process is with monitoring and emergency shutdown processing device, includes: the valve main pipeline, the valve auxiliary pipeline, the cut-off pipeline, the first flange, the cut-off mechanism and the pressure sensor;

the valve auxiliary pipe and the cut-off pipeline are integrally cast and connected to the valve main pipe and are mutually communicated, and the cut-off pipeline is positioned at the left side of the valve auxiliary pipe;

the first flanges are arranged at two sides of the main valve pipeline and connected with the two sides of the main valve pipeline, and the pressure sensor is arranged on the main valve pipeline;

The cut-off mechanism is arranged in the cut-off pipeline and used for cutting off circulation of internal hazardous chemicals of the main pipeline of the valve;

The cutoff mechanism includes: the valve comprises a first cut-off plug, a push rod, a valve electric push rod, a connecting rod and a second cut-off plug;

The first cut-off plug is fixedly connected with the inner wall of the cut-off pipeline and is positioned above the valve main pipeline, the second cut-off plug is arranged on the inner wall of the cut-off pipeline and is positioned below the valve main pipeline, the top of the push rod is connected with the bottom of the second cut-off plug, and the lower part of the push rod movably penetrates the cut-off pipeline and extends outwards, so that the first cut-off plug and the second cut-off plug are pushed to be attached to each other to cut off the valve main pipeline;

the valve electric push rod is arranged in the protective box and arranged on the outer wall of the cut-off pipeline, and the bottom of the push rod is connected with the output end of the valve electric push rod through a connecting rod.

Preferably, the top of the first cut-off plug is provided with an arc-shaped groove, and the diameter of the first cut-off plug is the same as that of the inner wall of the main pipeline of the valve, the bottom of the second cut-off plug is provided with a circular protrusion matched with the arc-shaped groove, the circular protrusion is attached to the arc-shaped groove, and the first cut-off plug and the second cut-off plug are made of one of rubber, metal and ceramic.

Preferably, a manual cutoff mechanism is arranged in the valve auxiliary pipe and is used for daily cutoff;

the manual cutoff mechanism includes: the valve comprises a second flange, a valve seat, a valve rod, a first valve block, a second valve block and a first plug;

The two second flanges are respectively connected to the top of the valve auxiliary pipe and the bottom of the valve seat, and the valve seat is installed through the two second flanges;

the top of valve rod is installed on the valve seat, and the screw thread runs through and extends to the inside of valve seat, the second valve piece is connected in the bottom of valve rod, just first valve piece cover is established the outer wall of valve rod and with the second valve piece is connected, first end cap is connected the bottom of second valve piece is used for shutoff valve trunk line.

Preferably, the manual cutoff mechanism further includes: the device comprises a filter tube, a first sealing ring, a second sealing ring, a third sealing ring and a hand wheel;

The filter tube is arranged on the inner wall of the valve auxiliary tube, a circular through hole is formed in the left side of the filter tube, a plurality of filter holes are formed in the right side of the filter tube, and the outer wall of the first plug is attached to the inner wall of the filter tube;

A first annular groove is formed between the filter tube and the second valve block, the first sealing ring is installed in the first annular groove, the second annular groove is formed in the inner walls of the second valve block and the valve seat, the second sealing ring is installed in the second annular groove and is intermittently attached to the second valve block, a third annular groove is formed between the two second flanges, and the third sealing ring is installed in the third annular groove;

the hand wheel is installed at the top of the valve rod.

Preferably, a cleaning mechanism is arranged at the bottom of the first plug and used for cleaning the filter holes;

The purge mechanism includes: the brush comprises a rotating rod, a turbine, a circular ring, a brush plate, bristles, a fixed rod and a return spring;

the rotating rod is rotationally connected to the bottom of the first plug through a bearing, the turbine is fixedly sleeved on the outer wall of the rotating rod, and two rings are arranged and are respectively connected to the outer wall of the turbine;

The two circular rings are provided with movable grooves, the fixed rods are fixedly connected in the movable grooves, the brush plate is movably sleeved on the outer wall of the fixed rods, the reset spring is sleeved on the outer wall of the fixed rods and connected with the brush plate and the inner wall of the movable grooves, and the reset spring is used for pushing the brush plate to be far away from the rotating rod;

the brush hair is arranged on the brush plate and is attached to the inner wall of the filter tube.

Preferably, the inner wall of the valve secondary pipe is provided with a collecting mechanism, and the collecting mechanism comprises: the collecting pipe, the third flange, the sealing block and the second plug;

the third flanges are arranged in two and are respectively connected with the lower part of the valve auxiliary pipe and the upper part of the collecting pipe) and are mutually connected through bolts;

The sealing block is connected to the top of the second plug and is in threaded connection with the inner wall of the collecting pipe, and a through hole is formed in the second plug and used for inserting a wrench.

Preferably, a fourth annular groove is formed in the inner wall of the sealing block and the inner wall of the valve auxiliary pipe, a fourth sealing ring is installed in the fourth annular groove, a fifth annular groove is formed between the two third flanges, and a fifth sealing ring is installed in the fifth annular groove.

Preferably, the sealing block, the fourth sealing ring and the fifth sealing ring are made of one of rubber, metal or ceramic, and the outer wall of the sealing block is attached to the inner parts of the valve auxiliary pipe and the collecting pipe.

Compared with the prior art, the invention has the beneficial effects that:

1. The pressure sensor arranged on the main pipeline of the valve is utilized to analyze pressure data in the pipeline through the arranged cutting mechanism, and the pressure sensor is connected with the connected valve push rod through a signal to control the valve push rod to operate, so that when the pressure in the pipeline is abnormally changed, the valve electric push rod is pushed to operate and shrink, the connecting rod is driven to move and drive the push rod to move, the second cutting plug is moved and attached to the first cutting plug, the internal cutting of the main pipeline of the valve is realized, and the function of cutting off is realized;

2. Through the manual cut-off mechanism, the valve rod connected below the valve rod is driven to rotate on the valve seat by utilizing the rotation of the rotation hand wheel, the first valve block and the second valve block below the valve rod are further pushed to move, the first plug is further pushed to move, the contact with the inner wall of the filter tube is realized, the purpose of sealing a circular through hole on the left side of the filter tube is realized, the purpose of stopping flow is realized, meanwhile, in the pushing-down process of the filter tube, the second valve block is contacted with the first sealing ring above the filter tube, the purpose of further sealing is realized, meanwhile, the hand wheel is reversely rotated, the valve rod is driven to move upwards, the first valve block, the second valve block and the first plug are further driven to move upwards, the main valve pipe is opened, the contact between the upper part of the first valve block and the second sealing ring is realized, and the problem of top sealing after opening is realized;

3. through the cleaning mechanism, the rotating rod arranged on the first blocking head is utilized to rotate, at the moment, through the circulation inside the first blocking head, the turbine is driven to rotate, the circular ring connected with the outer wall of the turbine is driven to rotate, the brush plate and the brush hair are driven to rotate, cleaning and brushing of the filter holes are achieved, meanwhile, the brush plate is pushed to move through the reset spring, the brush hair of the brush plate can be tightly attached to the filter holes, the purpose of better cleaning is achieved, and meanwhile, impurities on the inner wall of the filter tube are pushed in the process of pushing downwards through the two circular rings arranged in the first blocking head in the process of moving upwards and downwards, and the impurities are gradually pushed into the valve auxiliary tube to be collected in a concentrated mode; the caking matters in the conveying pipeline can be cleared at regular time, and the pipeline is prevented from being blocked.

4. Through the collection mechanism who sets up, utilize its collection pipe that sets up in valve subsidiary pipe below, can utilize it can dismantle through threaded connection's second end cap to take out the sealing block simultaneously, and when carrying out manual the cutting-off to the valve trunk line, clear up the impurity of its below, and then do not influence the pipeline and load danger waste product.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of the bottom structure of the present invention;

FIG. 3 is a schematic cross-sectional view of the present invention;

FIG. 4 is a schematic view of a sectional partial structure of the present invention;

FIG. 5 is a schematic cross-sectional view of a cleaning mechanism according to the present invention;

FIG. 6 is an enlarged schematic view of the structure of FIG. 5A according to the present invention;

FIG. 7 is a schematic view of the structure of the filter tube of the present invention.

In the figure: 1. a main valve pipe; 2. a valve secondary pipe; 3. cutting off the pipeline; 4. a first flange; 5. a manual cut-off mechanism; 501. a second flange; 502. a valve seat; 503. a valve stem; 504. a first valve block; 505. a second valve block; 506. a first plug; 507. a filter tube; 508. a first seal ring; 509. a second seal ring; 510. a third seal ring; 511. a hand wheel; 6. a collection mechanism; 601. a collection pipe; 602. a third flange; 603. a sealing block; 604. a second plug; 605. a fourth seal ring; 606. a fifth seal ring; 7. a cutting mechanism; 701. a first cut-off plug; 702. a push rod; 703. an electric valve push rod; 704. a connecting rod; 705. a second cut-off plug; 8. a cleaning mechanism; 801. a rotating rod; 802. a turbine; 803. a circular ring; 804. brushing a plate; 805. brushing; 806. a fixed rod; 807. a return spring; 9. a pressure sensor.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a number" is two or more, unless explicitly defined otherwise.

As shown in fig. 1, a monitoring and emergency shutdown processing device for a hazardous chemical substance loading process includes: the valve main pipeline 1, the valve auxiliary pipeline 2 and the cutoff pipeline 3 which are arranged transversely and vertically, the first flange 4, the cutoff mechanism 7 and the pressure sensor 9. The valve auxiliary pipe 2 and the cut-off pipe 3 are integrally cast and connected to the valve main pipe 1 and are communicated with the valve main pipe 1. The direction of the dangerous chemical flowing in the main valve pipe 1 is from left to right, and the cut-off pipe 3 is positioned at the left side of the auxiliary valve pipe 2 and is closer to the inlet direction. The first flange 4 is provided with two and is installed at both ends of the valve main pipe 1 respectively, the pressure sensor 9 is installed on the valve main pipe 1 and is close to the outlet direction, and the pressure sensor 9 is located on the right side of the valve subsidiary pipe 2.

Continuing to combine fig. 2 and 3, a shut-off mechanism 7 is provided in the shut-off conduit 3 for shutting off the circulation of hazardous chemicals inside the valve main conduit 1. The cutoff mechanism 7 includes a first cutoff plug 701, a push rod 702, a valve electric push rod 703, a connecting rod 704, and a second cutoff plug 705. The first cut-off plug 701 is arranged inside the cut-off pipeline 3 and below the main valve pipeline 1, and the first cut-off plug 701 is fixedly connected with the upper end of the push rod 702. The second cut-off plug 705 is mounted on the inner wall of the cut-off pipe 3 above the main valve pipe 1. The bottom of the push rod 702 penetrates through the cut-off pipeline 3 and extends outwards, and the push rod 702 is used for pushing the first cut-off plug 701 to be attached to the second cut-off plug 705 to cut off the main valve pipeline 1. The valve electric push rod 703 is installed in the protection box and on the outer wall of the cut-off pipeline 3, and the bottom of the push rod 702 is connected with the output end of the valve electric push rod 703 through a connecting rod 704.

The first cut-off plug 701 is matched with the diameter of the inner wall of the main valve pipe 1, an arc-shaped groove is formed in the top of the first cut-off plug 701, a circular protrusion matched with the arc-shaped groove in shape is formed in the bottom of the second cut-off plug 705, and when the first cut-off plug 701 is attached to the second cut-off plug 705, sealing cut-off is achieved through attachment of the circular protrusion and the arc-shaped groove. The first cut plug 701 and the second cut plug 705 are made of one of rubber, metal or ceramic.

Specifically, through the mechanism 7 that cuts that sets up, utilize its pressure sensor 9 that sets up on valve trunk line 1 to carry out the pressure data analysis in the pipeline, and carry out signal connection with the valve electric putter 703 of being connected through intermediate control ware, control valve electric putter 703 and move, and then when the pressure in the pipeline received unusual change, go to promote valve electric putter 703 operation shrink, and then drive push rod 702 synchronous movement through connecting rod 704, with first end cap 701 removal of cutting off and laminating with the second end cap 705 of cutting off, realize cutting off the inside of valve trunk line 1, realize the effect of cutout.

As for the pressure sensor 9 transmitting a signal to the intermediate controller, the intermediate controller transmits a signal to control the movement of the electric putter, and the signal transmission and control technique belongs to the conventional technique, and this embodiment is not specifically described.

With continued reference to fig. 3-5, a manual shut-off mechanism 5 is also provided in the valve secondary pipe 2 for manual shut-off in special situations, such as when the shut-off mechanism 7 fails or fails to operate, the shut-off can be achieved by the manual shut-off mechanism 5. The manual shut-off mechanism 5 includes a second flange 501, a valve seat 502, a valve stem 503, a first valve block 504, a second valve block 505, and a first plug 506. The second flanges 501 are provided in two, and are respectively installed at the top of the valve secondary pipe 2 and the bottom of the valve seat 502, and the valve seat 502 is fixedly installed on the valve secondary pipe 2 through the two second flanges 501. The valve stem 503 is mounted inside the valve seat 502, and the top thread of the valve stem 503 extends through to the outside of the valve seat 502, and the hand wheel 511 is mounted on the top of the valve stem 503. The second valve block 505 is installed at the bottom of the valve rod 503, and the first valve block 504 is sleeved on the outer wall of the valve rod 503 and connected with the second valve block 505, and the first plug 506 is connected at the bottom of the second valve block 505 and used for blocking the main valve pipe 1.

The manual cutoff mechanism 5 further includes: filter tube 507, first seal ring 508, second seal ring 509, and third seal ring 510. Second annular grooves are formed in the outer wall of the second valve block 505 and the inner wall of the valve seat 502, and a second sealing ring 509 is installed in the second annular grooves and is respectively attached to the second valve block 505 and the valve seat 502, so that hazardous chemicals in the valve main pipeline 1 are prevented from flowing into the valve seat 502. A third annular groove is formed between the two second flanges 501, and a third sealing ring 510 is installed in the third annular groove.

As shown in fig. 7, the filter tube 507 is installed on the inner wall of the valve auxiliary tube 2, specifically, the filter tube 507 is disposed at the intersection of the valve main tube 1 and the valve auxiliary tube 2, and when the articles in the valve main tube 1 flow from left to right in fig. 3, the articles will pass through the filter tube 507. The circular through hole 512 is arranged on the left side of the filter tube 507, the plurality of filter holes 513 are arranged on the right side, flowing dangerous chemicals enter the filter tube 507 from the left circular through hole 512 and flow out from the right filter hole 513, impurities or blocky and granular caking matters in the dangerous chemicals can be filtered out by the filter holes 513, the purity of the contained objects is further improved, and the diameter of the filter holes 513 can be adjusted according to actual needs.

The outer wall of the first plug 506 is attached to the inner wall of the filter tube 507, a first annular groove is formed between the filter tube 507 and the second valve block 505, and a first sealing ring 508 is installed in the first annular groove and used for sealing between the filter tube 507 and the second valve block 505.

Specifically, through the manual cutting mechanism 5 provided, the rotary hand wheel 511 is utilized to rotate, so that the valve rod 503 connected below the rotary hand wheel is driven to rotate on the valve seat 502, and then the first valve block 504 and the second valve block 505 below the valve rod 503 are pushed to move, so that the first plug 506 is pushed to move up and down, the first plug 506 is pushed to be in contact with the inner wall of the filter tube 507, the circular through hole on the left side of the filter tube 507 is closed, and the purpose of manual cutting off is achieved. Simultaneously in the pushing down process, the second valve block 505 is contacted with the first sealing ring 508 above the filter tube 507, further the purpose of further sealing is achieved, meanwhile, the hand wheel 511 is reversely rotated, the valve rod 503 is driven to move upwards, the first valve block 504, the second valve block 505 and the first plug 506 are driven to move upwards, further the main valve pipe 1 is opened, the first valve block 504 is contacted with the second sealing ring 509, and further the problem of top sealing after opening is achieved.

As shown in fig. 3, 5 and 6, a cleaning mechanism 8 is disposed at the bottom of the first plug 506 to clean the agglomerate filtered out from the filter holes. The purge mechanism 8 includes: a rotating rod 801, a turbine 802, a circular ring 803, a brush plate 804, bristles 805, a fixed rod 806 and a return spring 807. The bull stick 801 passes through the bearing rotation to be connected in the bottom of first end cap 506, and turbine 802 fixed cover is established at the outer wall of bull stick 801, and ring 803 is provided with two to connect respectively at the upper and lower both ends of the outer wall of turbine 802. The upper parts of the two circular rings 803 are provided with movable grooves, the fixed rods 806 are fixedly connected in the movable grooves, the brush plate 804 is movably sleeved on the outer wall of the fixed rods 806, the reset springs 807 are sleeved on the outer wall of the fixed rods 806 and are connected with the inner wall of the brush plate 804, and under the action of the reset springs 807, the brush plate 804 can move left and right along the fixed rods 806, and the bristles 805 are arranged on the surface of the brush plate 804 and are attached to the inner wall of the filter tube 507.

Specifically, by the cleaning mechanism 8 provided, the rotation of the rotating rod 801 provided on the first plug 506 will drive the turbine 802 to rotate by the circulation of the fluid hazardous chemical therein. The cross section of the turbine 802 is a fan-shaped structure, that is, a gap for letting fluid in and out of the turbine 802 is formed, and spiral blades are formed in the turbine 802, so that when the fluid rapidly flows through the turbine, the applied force drives the turbine to rotate, and then drives the ring 803 connected with the outer wall of the turbine to rotate, and drives the brush plate 804 and the brush 805 to rotate, and the brush 805 can clean the filter holes 513 in the rotating process. The brush plate 804 is pushed to move by the reset spring 807, so that the brush hair 805 can be tightly attached to the filtering holes, and the aim of better cleaning caking matters and impurities is fulfilled.

As described above, in the process of moving the first plug 506 downward, the impurities and the agglomerate on the inner wall of the filter tube 507 are further pushed downward by the two arranged circular rings 803 to the valve secondary tube 2 gradually for concentrated collection.

As shown in fig. 1, 3 and 4, a collecting mechanism 6 is arranged at the bottom of the inner wall of the valve secondary pipe 2, and the collecting mechanism 6 comprises: the collecting pipe 601, the third flange 602, the sealing block 603 and the second plug 604; the third flanges 602 are provided with two, are respectively connected below the valve secondary pipe 2 and above the collecting pipe 601, and are mutually connected through bolts; the sealing block 603 is connected to the top of the second plug 604, and is screwed to the inner wall of the collecting pipe 601, and the second plug 604 is provided with a through hole for inserting a wrench.

A fourth annular groove is formed in the inner wall of the sealing block 603 and the valve auxiliary pipe 2, a fourth sealing ring 605 is installed in the fourth annular groove, a fifth annular groove is formed between the two third flanges 602, and a fifth sealing ring 606 is installed in the fifth annular groove. The sealing block 603, the fourth sealing ring 605 and the fifth sealing ring 606 are made of one of rubber, metal or ceramic, and the outer wall of the sealing block 603 is attached to the valve auxiliary pipe 2 and the inner part of the collecting pipe 601.

Specifically, by arranging the collecting mechanism 6, the agglomerate cleaned by the cleaning mechanism 8 is uniformly pushed down into the collecting pipe 601 below the valve secondary pipe 2. Since the second plug 604 is screwed to the valve secondary pipe 2, it is detachable. When carrying out manual time of cuting to valve trunk line 1, because first end cap 506 has sealed valve trunk line 1, consequently can take out the sealing block 603 of bottom, and then unpick and remove collecting pipe 601, the clearance impurity is again good, and then does not influence the pipeline and to danger waste product loading.

It should be noted that, for convenience of control, the pressure sensor 9 and the valve electric push rod 703 in this embodiment are connected to the control panel through signals, and through program control, when the pressure sensor 9 senses an abnormal signal, the control panel controls the valve electric push rod 703 to work through the program, so that the operation of closing and opening the cut-off mechanism 7 through the valve electric push rod 703 is not a major innovation point in the prior art, and will not be described in detail herein.

The working principle of the invention is as follows:

When dangerous chemicals are loaded, the dangerous chemicals loading process is installed in a transmission pipeline by using the monitoring and emergency cutting processing device, the hand wheel 511 is manually twisted to rotate, the valve rod 503 is driven to move upwards, the first valve block 504, the second valve block 505 and the first plug 506 are driven to move upwards, the first plug 506 positioned at the filter pipe 507 is communicated with the two sides of the valve main pipeline 1, so that dangerous chemicals are transmitted, meanwhile, the pressure sensor 9 is used for detection, the connected cutting mechanism 7 is used for shrinking the valve electric push rod 703, the connecting rod 704 is driven to move, the push rod 702 is driven to move, the first cutting plug 701 is driven to be attached to the second cutting plug 705, the purposes of sealing and cutting are achieved, and when the internal pressure is unchanged, the valve electric push rod 703 is pushed outwards and is in a normally open state, and the two sides of the valve main pipeline 1 are communicated.

Simultaneously, through rotating hand wheel 511 rotation, can also promote the rotatory decline of valve rod 503 to promote first valve piece 504 and second valve piece 505 and first end cap 506 downstream, and then promote its first end cap 506 and carry out the shutoff to filter tube 507 department, realize manual the cutting off, and through its in-process that descends, two rings 803 that set up realize clearing up the filtration pore of filter tube 507 department and strike off, push down the caking thing that will filter out to the collecting pipe in, avoid caking thing to block up the filtration pore, influence filter effect and danger article normal flow in the pipeline. Meanwhile, when the first plug 506 does not plug the filter tube 507, under the condition that dangerous chemicals circulate inside, the first plug drives the turbine 802 to rotate so as to drive the brush plate 804 arranged on the first plug to rotate, and the brush holes are scraped through the brush hair 805 on one side, so that cleaning is realized during working, and meanwhile, the brush plate 804 is pushed by pushing the brush hair 805 through the reset spring 807, so that the brush hair 805 can be closely attached to the inner wall of the filter tube 507, and further the cleaning effect is improved;

Meanwhile, when the manual cutting-off is performed, the first plug 506 is in a blocking state, and when the first plug is moved downwards, the rotating rod 801 is pushed to move downwards, the turbine 802 and the circular ring 803 are pushed to move downwards, impurities in the filter tube 507 are pushed to fall into the lower half part of the valve auxiliary tube 2, and at the moment, only the second plug 604 is required to be opened to drive the second plug to be separated from the valve rod 503 and the collecting tube 601, so that impurities in the collecting tube 601 and the valve auxiliary tube 2 are cleaned.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. Monitoring and emergency cutting-off processing device for dangerous chemical loading process, characterized by comprising: the valve main pipeline (1), the valve auxiliary pipeline (2), the cutoff pipeline (3), the first flange (4), the cutoff mechanism (7) and the pressure sensor (9);

The valve auxiliary pipe (2) and the cut-off pipe (3) are integrally cast and connected to the valve main pipe (1) and are mutually communicated, and the cut-off pipe (3) is positioned on the left side of the valve auxiliary pipe (2);

the first flanges (4) are arranged at two sides of the main valve pipeline (1), and the pressure sensors (9) are arranged on the main valve pipeline (1);

The cutting mechanism (7) is arranged in the cutting pipeline (3) and is used for cutting off the circulation of dangerous chemicals in the main pipeline (1) of the valve;

The cutoff mechanism (7) includes: a first cut-off plug (701), a push rod (702), a valve electric push rod (703), a connecting rod (704) and a second cut-off plug (705);

The first cutting plug (701) is fixedly connected to the inner wall of the cutting pipeline (3) and is located above the valve main pipeline (1), the second cutting plug (705) is installed on the inner wall of the cutting pipeline (3) and is located below the valve main pipeline (1), the top of the push rod (702) is connected to the bottom of the second cutting plug (705), and the lower part movably penetrates the cutting pipeline (3) and extends outwards, so that the first cutting plug (701) and the second cutting plug (705) are pushed to be attached to each other to cut off the valve main pipeline (1);

The valve electric push rod (703) is arranged in the protective box and is arranged on the outer wall of the cut-off pipeline (3), and the bottom of the push rod (702) is connected with the output end of the valve electric push rod (703) through a connecting rod (704);

a manual cutoff mechanism (5) is arranged in the valve auxiliary pipe (2) and is used for daily cutoff;

The manual cutoff mechanism (5) includes: a second flange (501), a valve seat (502), a valve rod (503), a first valve block (504), a second valve block (505) and a first plug (506);

the two second flanges (501) are respectively connected to the top of the valve auxiliary pipe (2) and the bottom of the valve seat (502), and the valve seat (502) is installed through the two second flanges (501);

The top of the valve rod (503) is arranged on the valve seat (502) and extends into the valve seat (502) in a threaded manner, the second valve block (505) is connected to the bottom of the valve rod (503), the first valve block (504) is sleeved on the outer wall of the valve rod (503) and connected with the second valve block (505), and the first plug (506) is connected to the bottom of the second valve block (505) and used for blocking the main valve pipe (1);

The manual cutoff mechanism (5) further comprises: a filter tube (507), a first sealing ring (508),

The second sealing ring (509), the third sealing ring (510) and the hand wheel (511);

The filter tube (507) is arranged on the inner wall of the valve auxiliary tube (2), a circular through hole is formed in the left side, a plurality of filter holes are formed in the right side, and the outer wall of the first plug (506) is attached to the inner wall of the filter tube (507);

A first annular groove is formed between the filter pipe (507) and the second valve block (505), a first sealing ring (508) is installed in the first annular groove, second annular grooves are formed in the second valve block (505) and the inner wall of the valve seat (502), a second sealing ring (509) is installed in the second annular grooves and is intermittently attached to the second valve block (505), a third annular groove is formed between the two second flanges (501), and a third sealing ring (510) is installed in the third annular groove;

the hand wheel (511) is arranged at the top of the valve rod (503);

the bottom of the first plug (506) is provided with a cleaning mechanism (8) for cleaning the filter holes;

The purge mechanism (8) includes: a rotating rod (801), a turbine (802), a circular ring (803), a brush plate (804), bristles (805), a fixed rod (806) and a return spring (807);

The rotating rod (801) is rotatably connected to the bottom of the first plug (506) through a bearing, the turbine (802) is fixedly sleeved on the outer wall of the rotating rod (801), and two rings (803) are arranged and are respectively connected to the outer wall of the turbine (802);

The two circular rings (803) are provided with movable grooves, the fixed rods (806) are fixedly connected in the movable grooves, the brush plate (804) is movably sleeved on the outer wall of the fixed rods (806), the reset springs (807) are sleeved on the outer wall of the fixed rods (806) and are connected with the brush plate (804) and the inner walls of the movable grooves, and the reset springs are used for pushing the brush plate (804) to be far away from the rotating rod (801);

The brush hair (805) is arranged on the brush plate (804) and is attached to the inner wall of the filter tube (507).

2. The hazardous chemical substance loading process monitoring and emergency shutdown processing device according to claim 1, wherein: the top of the first cut-off plug (701) is provided with an arc-shaped groove, the diameter of the arc-shaped groove is the same as that of the inner wall of the main valve pipe (1), the bottom of the second cut-off plug (705) is provided with a circular protrusion matched with the arc-shaped groove, and the circular protrusion is attached to the arc-shaped groove.

3. The hazardous chemical substance loading process monitoring and emergency shutdown processing device according to claim 1, wherein: the inner wall of valve accessory pipe (2) is provided with collection mechanism (6), collection mechanism (6) include: the collecting pipe (601), the third flange (602), the sealing block (603) and the second plug (604);

the third flanges (602) are arranged in two and are respectively connected with the lower part of the valve auxiliary pipe (2) and the upper part of the collecting pipe (601) and are mutually connected through bolts;

the sealing block (603) is connected to the top of the second plug (604) and is in threaded connection with the inner wall of the collecting pipe (601), and a through hole is formed in the second plug (604) and used for inserting a wrench.

4. The hazardous chemical substance loading process monitoring and emergency shutdown processing device according to claim 3, wherein: a fourth annular groove is formed in the inner wall of the sealing block (603) and the inner wall of the valve auxiliary pipe (2), a fourth sealing ring (605) is arranged in the fourth annular groove, a fifth annular groove is formed between the two third flanges (602), and a fifth sealing ring (606) is arranged in the fifth annular groove.

5. The hazardous chemical substance loading process monitoring and emergency shutdown processing device according to claim 4, wherein: the sealing block (603), the fourth sealing ring (605) and the fifth sealing ring (606) are made of one of rubber, metal or ceramic, and the outer wall of the sealing block (603) is attached to the inner parts of the valve auxiliary pipe (2) and the collecting pipe (601).