阅读说明：本技术 管道吹猪用收发猪器及其使用方法 (Pig receiving and sending device for pipeline pig blowing and using method thereof ) 是由 杨华 佘猛 高鹏 张小民 于 2020-08-19 设计创作，主要内容包括：本发明涉及一种管道吹猪用收发猪器及其使用方法,用于收、发猪,包括收猪器和发猪器。收猪器、发猪器分别设置在吹猪管的两端。收猪器由不锈钢及黄铜制成,发猪器也由不锈钢及黄铜制成,猪由碳钢及橡胶制成。发猪器包括第一筒体、第一法兰盲板式猪座、停猪器、第一磁感应探头、第二磁感应探头。收猪器包括第二筒体、第二法兰盲板式猪座、第三磁感应探头。本发明可以广泛应用在打猪管线上,能便捷、安全、准确地确认猪是否到达指定位置,与原有的机械压杆式收发猪器比较,不但能提高猪的使用寿命,极大降低采购成本,而且可以缩减进口设备供货期,以满足施工工期要求。(The invention relates to a pig receiving and sending device for pipeline pig blowing and a using method thereof, which are used for receiving and sending pigs and comprise a pig receiving device and a pig sending device. The pig receiving device and the pig sending device are respectively arranged at two ends of the pig blowing pipe. The pig receiving device is made of stainless steel and brass, the pig sending device is also made of stainless steel and brass, and the pig is made of carbon steel and rubber. The pig sending device comprises a first barrel, a first flange blind plate type pig seat, a pig stopping device, a first magnetic induction probe and a second magnetic induction probe. The pig receiving device comprises a second cylinder, a second flange blind plate type pig seat and a third magnetic induction probe. The invention can be widely applied to pig beating pipelines, can conveniently, safely and accurately confirm whether pigs reach the designated positions, can prolong the service life of the pigs, greatly reduce the purchase cost and shorten the supply period of imported equipment compared with the original mechanical press bar type pig receiving and sending device, and meets the requirement of the construction period.)

1. A receiving and dispatching pig device for pipeline pig blowing is used for receiving and dispatching pigs and is characterized by comprising a pig receiving device and a pig dispatching device, wherein the pig receiving device and the pig dispatching device are respectively arranged at two ends of a pig blowing pipe, the pig receiving device is made of stainless steel and brass, the pig dispatching device is also made of stainless steel and brass, and the pigs are made of carbon steel and rubber;

the pig sending device comprises a first barrel, a first flange blind plate type pig seat, a pig stopping device, a first magnetic induction probe and a second magnetic induction probe, wherein the first barrel comprises a first compressed air interface, a material discharge port, a pig stopping device interface, a first pressure gauge interface, a first material pipe interface, a second material pipe interface and a first end flange interface which are mutually communicated, the first material pipe interface and the first end flange interface are coaxially arranged, the second material pipe interface and the first end flange interface are vertically arranged, the end of the first end flange interface, which is far away from the first material pipe interface, is provided with the first flange blind plate type pig seat, the end of the first material pipe interface, which is far away from the first end flange interface, is communicated with one end of a pig blowing pipe, the end, which is close to the first flange blind plate type pig seat, on the outer side surface of the first end flange interface is provided with the first compressed air interface communicated with the interior of the first end flange interface, the first compressed air interface is connected with a first compressed air source, a pig stopping device interface communicated with the interior of the first material pipe interface is arranged at the joint of the first material pipe interface and the first end flange interface, a pig stopping device is arranged at the pig stopping device interface, a material discharge port is arranged at the end, close to the pig stopping device interface, of the outer side face of the first end flange interface, a first pressure gauge interface is arranged on the outer side face of the first material pipe interface, a first magnetic induction probe is arranged on the outer side face of the first end flange interface, and a second magnetic induction probe is arranged on the outer side face of the first material pipe interface;

the pig receiving device comprises a second cylinder body, a second flange blind plate type pig seat and a third magnetic induction probe, wherein the second cylinder body comprises a second compressed air interface, a second pressure gauge interface, a third material pipe interface, a fourth material pipe interface and a second end flange interface which are mutually communicated, the third material pipe interface and the second end flange interface are coaxially arranged, the fourth material pipe interface and the second end flange interface are vertically arranged, the end, far away from the third material pipe interface, of the second end flange interface is provided with the second flange blind plate type pig seat, the end, far away from the second end flange interface, of the third material pipe interface is communicated with a pig blowing pipe, the end, close to the second flange blind plate type pig seat, on the outer side surface of the second end flange interface is provided with a second compressed air interface communicated with the inside of the second end flange interface, and the second compressed air interface is connected with a second compressed air source, a second pressure gauge interface is arranged on the outer side surface of the third material pipe interface, and a third magnetic induction probe is arranged on the outer side surface of the second end flange interface;

the first magnetic induction probe, the second magnetic induction probe and the third magnetic induction probe are all provided with indicating lamps, and the first magnetic induction probe, the second magnetic induction probe and the third magnetic induction probe have certain magnetism, all act on an object made of carbon steel, change an electric signal and display through the indicating lamps; the first magnetic induction probe, the second magnetic induction probe and the third magnetic induction probe can not act on objects made of stainless steel and brass.

2. The pig receiving and sending device for the pipeline blowing pig as claimed in claim 1, wherein the first flange blind plate type pig seat comprises a blind plate and a PVC pig seat, a first groove is formed in the blind plate, the PVC pig seat is arranged in the first groove, a second groove is formed in the PVC pig seat, so that when a pig is received, damage to the pig caused by impact is reduced, three first air inlet holes are further formed in the PVC pig seat, and a second air inlet hole is formed in the side surface of the PVC pig seat corresponding to the first compressed air interface;

the structure of the second flange blind plate type pig seat is consistent with that of the first flange blind plate type pig seat, and a second air inlet hole of the second flange blind plate type pig seat corresponds to a second compressed air interface.

3. The pig receiving and sending device for the pipeline blowing pig as claimed in claim 1, wherein the pig stopping device comprises a pig stopping device body, a pig stopping rod and a cylinder, one end of the pig stopping device body is connected with the pig stopping device connector, the other end of the pig stopping device body is connected with the cylinder, an internal thread is arranged at the top of the pig stopping rod, one end of the pig stopping rod extends into the pig stopping device body and is in threaded connection with a guide rod of the cylinder, the other end of the pig stopping rod penetrates through the pig stopping device connector and can be inserted into the first cylinder, and the insertion depth of the pig stopping device cannot collide with the inner wall of the opposite side of the first.

4. The pig receiving and sending device for the pipeline pig blowing as claimed in claim 3, wherein a double-layer O-shaped sealing ring is arranged between the pig stopping device main body and the pig stopping device interface, and a rubber sealing gasket is arranged between the pig stopping device main body and the air cylinder;

the pig stopping device body is made of brass, and the pig blocking rod is made of stainless steel.

5. The pig transceiver for pipeline blowing according to claim 3, wherein the cylinder is a bidirectional standard cylinder.

6. The pig transceiver for pipeline blowing according to claim 5, wherein the cylinder is provided with a first air inlet valve and a second air inlet valve.

7. The use method of the pig transceiver for pipe blowing of claim 5, comprising the following steps:

1) the first magnetic induction probe, the second magnetic induction probe and the third magnetic induction probe are connected with a 24V power supply nearby;

2) opening the first flange blind plate type pig seat and loading pigs;

3) opening a first air inlet valve on an air cylinder of the pig stopping device, putting down a pig blocking rod of the pig stopping device to fix the pig, wherein an indicator lamp on the first magnetic induction probe is turned on, and an indicator lamp on the second magnetic induction probe is turned off;

4) when the variety of the pipeline material is changed, a second air inlet valve on an air cylinder of the pig stopping device is opened, and a pig blocking rod of the pig stopping device is withdrawn;

5) compressed air is introduced into the first compressed air interface, the pig is pushed into the pig receiving device, and materials in the pig blowing pipe, the pig sending device and the pig receiving device are discharged from the second material pipe interface or the fourth material pipe interface; when the pig reaches the pig collector, an indicator lamp on the third magnetic induction probe is turned on, and the pig can be known to reach the designated position;

6) compressed air is introduced into the second compressed air inlet, the pig is pushed back into the pig sending device and enters a servo state, and meanwhile a small amount of materials are discharged into the dirty oil pipe through the material discharge port; at the moment, the indicator light on the first magnetic induction probe is on, and the indicator light on the second magnetic induction probe is off;

7) and opening a first air inlet valve on an air cylinder of the pig stopping device, and putting down a pig blocking rod of the pig stopping device to fix the pig.

Technical Field

The invention relates to the technical field of pig receiving and sending devices, in particular to a pig receiving and sending device for pipeline pig blowing and a using method thereof.

Background

The pig-beating pipeline is also called a ball-passing pipeline, has the characteristics of multiple purposes, no pollution between materials and less residue in the pipeline, is widely applied to long-distance pipelines and lubricating oil medium pipelines, particularly to finished oil filling pipelines of lubricating oil, and is designed to be a pig-beating pipeline from a production workshop to a filling platform due to the continuous change of lubricating oil varieties. The pig-beating pipeline system generally comprises a pig sending device, a pig receiving device, a pig blowing pipe, a pig and other units. The pig is usually a column with two slightly tapered ends, is generally made of carbon steel metal and rubber, and has certain hardness and good elasticity. The outside diameter of the pig blowing pipe is 3 to 10mm larger than the inside diameter of the cleaned pig blowing pipe matched with the outside diameter of the pig blowing pipe, so that the aim of thoroughly cleaning the materials in the pig blowing pipe is fulfilled.

The original mechanical pressure bar type pig receiving and sending device is a finished product produced by foreign Emerson company, and the principle is that whether a pig reaches a designated position is sensed by manually pressing the mechanical pressure bar. Send out pig ware and structurally set up 2 mechanical depression bar, the pig reachs and receives pig ware back, presses end mechanical depression bar, can't press down if the perception, then the pig has got into and has received pig ware, presses front end mechanical depression bar again, can press down completely if the perception, then the pig reachs the assigned position completely, can fix this depression bar, fixes the pig in receiving pig ware, plays and stops pig ware effect. Receive pig ware and structurally set up 1 mechanical depression bar, the pig arrives sends out the pig ware after, presses mechanical depression bar, if the perception can't press down, then the pig has got into and has sent out the pig ware.

All the original mechanical press bar type pig receiving and sending devices are imported finished products, the supply period is about 120 days, and the price is 4-5 ten thousand yuan by taking the pig receiving and sending device made of carbon steel material with the DN80 specification as an example.

Disclosure of Invention

The invention aims to improve and innovate the defects and problems in the background art, and provides a pig receiving and sending device for pipeline blowing and a using method thereof, which can prolong the service life of pigs, greatly reduce the purchasing cost and simplify the manual operation.

The utility model provides a pipeline is blown pig and is used receiving and dispatching pig ware for receive, send out the pig, including receiving the pig ware and sending out the pig ware, receive the pig ware, send out the pig ware and set up respectively at the both ends of blowing the pig pipe, receive the pig ware and make by stainless steel and brass, send out the pig ware and also make by stainless steel and brass, the pig is made by carbon steel and rubber.

The pig sending device comprises a first barrel, a first flange blind plate type pig seat, a pig stopping device, a first magnetic induction probe and a second magnetic induction probe. The first cylinder comprises a first compressed air interface, a material discharge port, a pig stopping device interface, a first pressure gauge interface, a first material pipe interface, a second material pipe interface and a first end flange interface which are communicated with each other. The first material pipe interface and the first end flange interface are coaxially arranged, and the second material pipe interface and the first end flange interface are vertically arranged. The end of the first end flange interface, which is far away from the first material pipe interface, is provided with a first flange blind plate type pig seat. The end of the first material pipe interface, which is far away from the first end flange interface, is communicated with one end of the pig blowing pipe. The end, close to the blind flange type pig seat of the first flange, on the outer side surface of the flange interface of the first end part is provided with a first compressed air interface communicated with the inside of the flange interface of the first end part, and the first compressed air interface is connected with a first compressed air source. The connection part of the first material pipe interface and the first end flange interface is provided with a pig stopping device interface communicated with the inside of the first material pipe interface, and a pig stopping device is arranged at the pig stopping device interface. And a material discharge port is arranged at the end, close to the pig stopping device connector, on the outer side surface of the first end flange connector. And a first pressure gauge interface is arranged on the outer side surface of the first material pipe interface. The outer side surface of the first end flange interface is provided with a first magnetic induction probe, and the outer side surface of the first material pipe interface is provided with a second magnetic induction probe.

The pig receiving device comprises a second cylinder, a second flange blind plate type pig seat and a third magnetic induction probe. The second cylinder comprises a second compressed air interface, a second pressure gauge interface, a third material pipe interface, a fourth material pipe interface and a second end flange interface which are communicated with each other. The third material pipe interface and the second end flange interface are coaxially arranged, and the fourth material pipe interface and the second end flange interface are vertically arranged. And a second flange blind plate type pig seat is arranged at the end, far away from the third material pipe connector, of the second end flange connector. The end of the third material pipe interface, which is far away from the second end flange interface, is communicated with the pig blowing pipe. And a second compressed air interface communicated with the inside of the second end flange interface is arranged at the end, close to the second flange blind plate type pig seat, on the outer side surface of the second end flange interface, and the second compressed air interface is connected with a second compressed air source. And a second pressure gauge interface is arranged on the outer side surface of the third material pipe interface, and a third magnetic induction probe is arranged on the outer side surface of the second end flange interface.

All be equipped with the pilot lamp on first magnetic induction probe, the second magnetic induction probe and the third magnetic induction probe. The first magnetic induction probe, the second magnetic induction probe and the third magnetic induction probe are all provided with certain magnetism, and all act on an object made of carbon steel, change an electric signal and display the electric signal through an indicator light; the first magnetic induction probe, the second magnetic induction probe and the third magnetic induction probe can not act on objects made of stainless steel and brass.

In one embodiment, the first flange blind type pig seat comprises a blind plate and a PVC pig seat. Be equipped with first recess on the blind plate, be equipped with PVC pig seat in the first recess, be equipped with the second recess on the PVC pig seat, when being convenient for receive the pig, reduce the damage of striking to the pig. The PVC pig seat is further provided with three first air inlets, and a second air inlet is formed in the side face of the PVC pig seat corresponding to the first compressed air interface.

The structure of the second flange blind plate type pig seat is consistent with that of the first flange blind plate type pig seat, and a second air inlet hole of the second flange blind plate type pig seat corresponds to a second compressed air interface.

In one embodiment, the pig stopping device comprises a pig stopping device body, a pig blocking rod and a cylinder. The one end of stopping pig ware main part links to each other with stopping pig ware interface, and the other end links to each other with the cylinder, keeps off the pig pole top and is equipped with the internal thread, and the one end that keeps off the pig pole stretches into in stopping pig ware main part and with the guide arm threaded connection of cylinder, the other end passes and stops in the pig ware interface can insert first barrel, and the depth of insertion can not collide first barrel offside inner wall.

In one embodiment, a double-layer O-shaped sealing ring is arranged between the pig stopping device main body and the pig stopping device interface, and a rubber sealing gasket is arranged between the pig stopping device main body and the air cylinder.

The pig stopping device body is made of brass, and the pig blocking rod is made of stainless steel.

In one embodiment, the cylinder is a bi-directional standard cylinder.

In one embodiment, the cylinder is provided with a first intake valve and a second intake valve.

A use method of the pig receiving and sending device for pipeline pig blowing comprises the following steps:

1) the first magnetic induction probe, the second magnetic induction probe and the third magnetic induction probe are connected to a 24V power supply nearby.

2) Opening the first flange blind plate type pig seat and loading pigs.

3) And opening a first air inlet valve on an air cylinder of the pig stopping device, putting down a pig blocking rod of the pig stopping device to fix the pig, wherein an indicator lamp on the first magnetic induction probe is turned on, and an indicator lamp on the second magnetic induction probe is turned off.

4) When the variety of the pipeline material is changed, a second air inlet valve on the air cylinder of the pig stopping device is opened first, and a pig blocking rod of the pig stopping device is withdrawn.

5) Compressed air is introduced into the first compressed air interface, the pig is pushed into the pig receiving device, and materials in the pig blowing pipe, the pig sending device and the pig receiving device are discharged from the second material pipe interface or the fourth material pipe interface; when the pig reaches the pig collector, the indicator light on the third magnetic induction probe is on, and the pig can be known to reach the designated position.

6) Compressed air is introduced into the second compressed air inlet, the pig is pushed back into the pig sending device and enters a servo state, and meanwhile a small amount of materials are discharged into the dirty oil pipe through the material discharge port; at the moment, the indicator light on the first magnetic induction probe is on, and the indicator light on the second magnetic induction probe is off.

7) And opening a first air inlet valve on an air cylinder of the pig stopping device, and putting down a pig blocking rod of the pig stopping device to fix the pig.

The invention has the advantages and beneficial effects that:

the invention can be widely applied to pig beating pipelines, can conveniently, safely and accurately confirm whether pigs reach the designated positions, can prolong the service life of the pigs, greatly reduce the purchase cost and shorten the supply period of imported equipment compared with the original mechanical press bar type pig receiving and sending device, and meets the requirement of the construction period.

1. The design of the invention can reduce the number of openings on the pig receiving device and the pig sending device, namely, the abrasion to the pig can be reduced, and the service life of the pig is prolonged; compared with the mechanical pressing rod type pig collecting device in the prior art, the mechanical pressing rod type pig collecting device in the prior art has 1 opening, compared with the existing mechanical pressing rod type pig sending device, the opening of the pipeline is more, the risk that acute angles, burrs and bulges exist inside the pipeline is higher, and when the pig passes through, the risks can cause larger abrasion to the pig, so that the service life of the pig is shortened.

2. The pig receiving device and the pig sending device are in non-contact detection, so that the scraping of the pigs can be avoided, and the service life of the pigs is prolonged; the pig receiving and sending device avoids that the pressing rod can scrape pigs to a certain extent when the mechanical pressing rod type pig receiving and sending device in the prior art detects the pig receiving and sending device.

3. The pig receiving device and the pig sending device are made of stainless steel and brass, are more durable, and can be manufactured and assembled in a non-standard way if accessories are purchased by oneself, the cost is 0.8-1 ten thousand yuan, the supply period of a key part magnetic induction probe adopting an imported Turck sensor is only about 40 days, and the manufacturing and the assembly can be completed in about 2 days; the cost and the supply period are greatly reduced.

4. When the pig detecting device detects whether a pig reaches a designated position, the pig detecting device can visually judge through the indicating lamp on the magnetic inductor probe, the judgment is accurate, the operation is simple, and the condition that the mechanical pressure rod type pig receiving and sending device in the prior art needs manual pressing sensing is avoided.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of the first cylinder of the present invention.

Fig. 3 is a schematic structural view of the second cylinder of the present invention.

Fig. 4 is a schematic view of an angle structure of a first flange blind type pig seat.

Fig. 5 is another angle structure schematic diagram of the first flange blind plate type pig seat.

Fig. 6 is a schematic structural diagram of the pig stopping device interface.

Fig. 7 is a schematic structural diagram of the pig stopping device.

Fig. 8 is a schematic structural view of the pig stopping device main body and the pig blocking rod.

Fig. 9 is a schematic representation of the structure of a pig of the invention.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed" on another element, it can be directly disposed or attached to the other element or intervening elements may also be present. The terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.