CN112320746B - An emergency release device for the oil receiving port of a shuttle oil tanker - Google Patents

Abstract

The invention relates to an emergency disengagement device, in particular to an emergency disengagement device of an oil receiving port of a shuttle oil tanker, belonging to the technical field of marine equipment. It is used for the shuttle oil tanker to receive oil on the oil receiving platform, including the female joint and the male joint. The female joint is connected with the high-pressure manifold installed on the shuttle oil tanker, and the male joint is connected with the oil receiving manifold installed on the oil receiving platform. , through the connection and disconnection of the female joint and the male joint, the oil receiving operation and emergency release are realized. In case of emergency or emergencies, the shuttle tanker can be quickly separated from the oil receiving platform, reducing casualties and property losses, and protecting the operation equipment; it can also quickly and automatically close the pipeline after the shuttle tanker is separated from the oil receiving platform. , to avoid oil spills causing environmental pollution and safety hazards.

Description

An emergency release device for the oil receiving port of a shuttle oil tanker

technical field

The invention relates to an emergency detachment device, in particular to an emergency detachment device for an oil receiving port of a shuttle oil tanker, and belongs to the technical field of marine equipment.

Background technique

With the increasing proportion of overseas oil and oil from offshore exploration and development in my country's oil, shuttle tankers have become an increasingly important means of maritime transportation. Due to the continuous increase in the demand for offshore oil, when the shuttle tanker receives oil from the oil receiving platform, it puts forward higher requirements on the oil receiving efficiency, oil receiving safety and oil receiving environmental protection. Among them, high-pressure manifolds are set on the shuttle tanker, and oil-receiving manifolds are set on the oil-receiving platform, and the oil-receiving operation is completed by connecting the high-pressure manifolds and the oil-receiving manifolds.

In the process of receiving oil between the shuttle tanker and the oil receiving platform, in the event of an emergency or emergency, it is necessary to ensure that the shuttle tanker and the oil receiving platform can be quickly separated, reduce casualties and property losses, and protect the operation equipment; It is ensured that the pipeline can be automatically closed after the shuttle tanker is separated from the oil receiving platform, so as to avoid the pollution of the environment caused by oil leakage and the occurrence of potential safety hazards.

However, there has not yet been found an emergency disconnection device that can be used for oil-receiving operations between the shuttle tanker and the oil-receiving platform under high pressure conditions, which can be quickly disconnected and can automatically block the pipeline. With the development of offshore oil and marine The rise of oil trade and the increasing use of shuttle tankers has made the need for emergency disengagement devices that can be used for shuttle tankers and receiving platforms even more urgent. Therefore, how to provide an emergency detachment device for the oil receiving port of the shuttle oil tanker that can realize the rapid separation of the shuttle oil tanker from the oil receiving platform and can automatically block the pipeline is a technical problem to be solved by those skilled in the art.

SUMMARY OF THE INVENTION

In view of this, the technical problem solved by the present invention is how to provide an emergency detachment device for the oil receiving port of the shuttle oil tanker that can quickly separate the shuttle oil tanker from the oil receiving platform and can automatically block the pipeline. The technical scheme adopted in the present invention is as follows:

An emergency disconnection device for an oil receiving port of a shuttle oil tanker includes a female joint connected with a high-pressure manifold and a male joint connected with an oil receiving manifold, wherein the female joint comprises a female joint body, which is sequentially arranged in the cavity of the female joint body The first bracket, the first valve core spring and the first valve core, the two ends of the first valve core spring are respectively fixedly connected to the first bracket and the first valve core, and the outer part of the female connector body is threadedly connected with a fixing sleeve A sliding sleeve spring, a positioning sliding sleeve and a position indicating rod are sequentially arranged in the annular space formed by the fixed sleeve and the female connector body, and the two ends of the sliding sleeve spring are respectively connected to the positioning sliding sleeve and the female connector. The position indicating rod is arranged at the front end of the positioning sliding sleeve. The female connector body is provided with a plurality of positioning beads, the male connector includes a male connector body, a second bracket, a second valve core spring and a second valve core sequentially arranged in the inner cavity of the male connector body, the first Both ends of the two valve core springs are fixedly connected to the second bracket and the second valve core respectively, the female connector body and the male connector body are respectively provided with a first overflow channel and a second overflow channel, and the fixed sleeve A first hydraulic oil flow channel and a second hydraulic oil flow channel that communicate with each other are opened in sequence from the outside to the inside. When receiving oil, the female joint body is sleeved outside the male joint body and the shaft is pivoted through the positioning bead. The first valve core and the second valve core are in contact with each other first, and then move in opposite directions at the same time under the interaction force to open the first overflow channel and the second overflow channel, so that the oil flows from the high pressure manifold through the second overflow channel. The first overflow channel and the second overflow channel flow out to the oil receiving manifold.

Preferably, the annular space between the female connector body and the fixing sleeve is divided into a first outer cavity, a second outer cavity and a third outer cavity by the positioning sliding sleeve, and the three cavities are not communicated with each other, wherein , the first outer cavity is provided with a sliding sleeve spring, the second outer cavity is communicated with the second hydraulic oil flow channel, and the radial dimension of the second outer cavity is larger than that of the second hydraulic oil flow channel , to ensure that the second hydraulic oil flow channel will not be blocked during the movement of the positioning sliding sleeve, so that the injected high-pressure hydraulic oil can always act on the positioning sliding sleeve, and the third outer cavity is provided with a position The indicator rod is used to display the position of the positioning sliding sleeve.

Preferably, the inner cavity of the female connector is divided into a first inner cavity and a second inner cavity by the first valve core, and the two communicate with each other when the first overflow channel is opened, and are isolated from each other at other times. The inner cavity is divided into a third inner cavity and a fourth inner cavity by the second valve core, and the two communicate with each other when the second flow passage is opened, and are isolated from each other at other times. The second inner cavity communicates with the third inner cavity after the body is engaged.

Preferably, a first sealing ring is arranged between the female connector body and the first valve core, and the first sealing ring is an O-ring; The second sealing ring and the third sealing ring are both O-shaped sealing rings; a fourth sealing ring is arranged between the male joint body and the second valve core, so The fourth sealing ring is an O-shaped sealing ring.

Preferably, the first bracket is threadedly connected to the inner cavity of the female connector, and the elastic force of the first valve core spring is changed by adjusting the position of the first bracket, thereby changing the first overcurrent flow According to the opening pressure of the channel, the first bracket is provided with a first bracket center flow channel and a plurality of first bracket overflow channels distributed around the circumference of the first bracket center flow channel.

Preferably, the second bracket is threadedly connected to the cavity of the male body, and the elastic force of the second valve core spring is changed by adjusting the position of the second bracket, thereby changing the second overflow flow According to the opening pressure of the channel, the second bracket is provided with a second bracket center flow channel and a plurality of the second bracket overflow channels distributed around the circumference of the second bracket center flow channel.

Preferably, the first valve core is a rotary body structure, comprising a first valve core body, a first tray fixedly connected to one side of the first valve core body, and a second tray fixedly connected to the first valve core body The thickness of the first spool body is L2, the diameter of the first flow passage is L1, and the relationship L2>L1 is satisfied to ensure that the first spool can An overflow channel is effectively blocked; the length of the positioning shoulder of the female connector body is L3, the difference between the radius of the first valve core body and the radius of the first cone frustum is L4, and the relationship L4>L3 is satisfied, Make sure that the first valve core is in close contact with the positioning shoulder of the female body.

Preferably, the second valve core is a rotary body structure, comprising a second valve core body, a second tray fixedly connected to one side of the second valve core body, and another side fixedly connected to the second valve core body The thickness of the second spool body is L6, the diameter of the second flow passage is L5, and the relationship L6>L5 is satisfied to ensure that the second spool can The second flow passage is effectively blocked; the length of the positioning shoulder of the male joint body is L7, the difference between the radius of the second valve core body and the radius of the second cone frustum is L8, and the relationship L8>L7 is satisfied, Make sure that the second valve core is in close contact with the positioning shoulder of the male body.

Preferably, the positioning sliding sleeve is slidably installed in the annular space between the female connector body and the fixing sleeve, and a sliding sleeve positioning groove and an indicator rod installation groove are provided on the sliding sleeve positioning groove. When the positioning beads are above the positioning beads, the positioning beads are radially fixed. When the sliding sleeve positioning grooves leave above the positioning beads, the radial fixing of the positioning beads is released. The female connector body is provided with positioning A ball mounting hole and a positioning ball slideway, the positioning ball includes a positioning ball and an annular plate fixed on the outside of the positioning ball, the positioning ball is installed in the positioning ball installation hole, and the annular plate is slidably installed on the In the positioning ball slideway, the male joint body is provided with an annular positioning channel, and when receiving oil, the positioning ball contacts the inner surface of the sliding sleeve positioning groove and the outer surface of the positioning ball slideway at the same time.

Preferably, the female joint body is made of 42CrMo forgings, so that it has high strength, high wear resistance and high impact resistance, and the corrosion thickness is reserved; the male joint body is made of tempered 42CrMo material It is processed to improve its impact resistance, and the corrosion thickness is reserved to ensure its working stability during its working life.

The invention has the following advantages: the invention provides an emergency disengagement device for the oil receiving port of the shuttle oil tanker for the oil receiving operation of the shuttle oil tanker and the oil receiving platform. The platform can be quickly detached to reduce casualties and property losses, and protect operating equipment; it can also quickly and automatically close the pipeline after the shuttle tanker is detached from the oil receiving platform, so as to avoid environmental pollution and safety hazards caused by oil leakage. When the female connector and the male connector of the present invention are quickly disengaged, the first valve core and the second valve core will be quickly reset respectively under the action of the spring force of the first valve core spring and the second valve core spring, and the first overflow flow will be quickly blocked. The first sealing ring and the fourth sealing ring will play a certain buffering role in this process to avoid the gap between the first valve core and the positioning shoulder of the female body and the second valve core and the second valve core. The direct collision between the positioning shaft shoulders of the male joint body prevents the complete separation due to excessive force, thereby avoiding unnecessary trouble and loss when restoring the connection. The invention improves the reliability and stability when the shuttle tanker receives oil on the oil receiving platform, and can complete the oil receiving operation more conveniently and safely. It provides a reliable guarantee for the safety of receiving oil.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic structural diagram 1 of an emergency disengagement device for an oil receiving port of a shuttle tanker according to an embodiment of the present invention;

FIG. 2 is a second structural schematic diagram of a device for emergency disengagement from an oil receiving port of a shuttle tanker according to an embodiment of the present invention;

3 is a diagram of the flow of oil when an emergency disengagement device for an oil receiving port of a shuttle oil tanker receives oil according to an embodiment of the present invention;

Fig. 4 is an enlarged view of part A in Fig. 1 of a device for emergency disengagement of the oil receiving port of a shuttle tanker according to an embodiment of the present invention;

FIG. 5 is an enlarged view of the position B in FIG. 1 of a device for emergency disengagement from the oil receiving port of a shuttle tanker according to an embodiment of the present invention;

FIG. 6 is an enlarged view of the position C in FIG. 2 of a device for emergency disengagement from the oil receiving port of a shuttle tanker according to an embodiment of the present invention;

FIG. 7 is an enlarged view of the position D in FIG. 2 of an emergency disengagement device for an oil receiving port of a shuttle tanker according to an embodiment of the present invention;

FIG. 8 is an enlarged view of the position E in FIG. 3 of a device for emergency disengagement from the oil receiving port of a shuttle tanker according to an embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The following will describe in detail an emergency disengagement device for an oil receiving port of a shuttle oil tanker according to an embodiment of the present invention with reference to FIGS. 1 to 8 .

An embodiment of the present invention provides an emergency disengagement device for an oil receiving port of a shuttle oil tanker, which is used for the shuttle oil tanker to receive oil on an oil receiving platform, including a female joint and a male joint, wherein the female joint is connected to a high-pressure pipe installed on the shuttle oil tanker. The male joint is connected with the oil receiving manifold installed on the oil receiving platform, and the oil receiving operation and emergency release are realized by connecting and disconnecting the female joint and the male joint.

Referring to FIG. 1 , FIG. 2 , and FIG. 3 , the female connector of the embodiment of the present invention includes a female connector body 100 , a first bracket 110 , a first valve core spring 120 and a first valve core 130 , wherein the first bracket 110 , the first valve core spring 120 and the first valve core 130 are sequentially installed in the inner cavity of the female connector body 100 according to the oil flow direction. One end of the first valve core spring 120 is connected to the first bracket 110 and the other end is connected to the first valve core 130 , and the first valve core spring 120 is always in a compressed state, that is, the first valve core 130 is always under the force of the spring , it can be ensured that the first overflow channel 101 opened on the female connector body 100 is always in a state of being blocked by the first valve core 130 in the non-oil-receiving state. The male joint of the embodiment of the present invention includes a male joint body 200 , a second bracket 210 , a second valve core spring 220 and a second valve core 230 , wherein the second valve core 230 , the second valve core spring 220 and the second valve core 230 The racks 210 are sequentially installed in the inner cavity of the male joint body 200 according to the oil flow direction. One end of the second valve core spring 220 is connected to the second bracket 210 and the other end is connected to the second valve core 230 , and the second valve core spring 220 is always in a compressed state, that is, the second valve core 230 is always under the force of the spring , it can be ensured that the second overflow channel 201 opened on the male body 200 is always in the state of being blocked by the second valve core 230 in the non-oil-receiving state.

It should be noted that the female joint body 100 is made of 42CrMo forgings, so that it has high strength, high wear resistance and high impact resistance, and the corrosion thickness is reserved; the male joint body 200 is made of 42CrMo material with tempering treatment. It is processed to improve its impact resistance, and the corrosion thickness is reserved to ensure its working stability during its working life.

Referring to FIG. 3 and FIG. 4 , in order to improve the sealing effect of the first flow passage 101 , the first valve core 130 in the embodiment of the present invention is configured as a rotary structure, which specifically includes a first valve core body, a fixed connection A first tray on one side of the first valve core body and a first frustum fixed on the other side of the first valve core body. The thickness of the first valve core body is L2, the diameter of the first flow passage 101 is L1, and the relationship L2>L1 is satisfied, so as to ensure that the first valve core 130 can effectively block the first flow passage 101, The sealing effect of the first overflow channel 101 is improved; the length of the positioning shoulder of the female connector body 100 is L3, the difference between the radius of the first valve core body and the radius of the first cone frustum is L4, and the relationship L4>L3 is satisfied, ensuring the first A valve core 130 is in close contact with the positioning shoulder of the female connector body 100 , which further improves the sealing effect of the first flow passage 101 .

In addition, in order to further improve the sealing effect of the first flow passage 101 , in the embodiment of the present invention, a first sealing ring 410 is provided between the female connector body 100 and the first valve core 130 . Specifically, the first sealing ring 410 It is an O-ring. It should be noted that when the female joint is rapidly disengaged from the male joint, the first valve core 130 will be quickly reset under the action of the spring force of the first valve core spring 120 to quickly seal the first overflow channel 101, and the first sealing ring 410 will play a certain buffering role in this process to avoid direct collision between the first valve core 130 and the positioning shoulder of the female connector body 100 .

Referring to FIGS. 3 and 5 , in order to improve the sealing effect of the second flow passage 201 , the second valve core 230 in the embodiment of the present invention is configured as a rotary structure, which specifically includes a second valve core body, a fixed connection A second tray on one side of the second valve core body and a second cone frustum fixed on the other side of the second valve core body. The thickness of the second valve core body is L6, the diameter of the second flow passage 201 is L5, and the relationship L6>L5 is satisfied, so as to ensure that the second valve core 230 can effectively block the second flow passage 201, The sealing effect of the second overflow channel 201 is improved; the length of the positioning shoulder of the male joint body 200 is L7, the difference between the radius of the second valve core body and the radius of the second cone frustum is L8, and the relationship L8>L7 is satisfied, ensuring the first The second valve core 230 is in close contact with the positioning shoulder of the male body 200 , which further improves the sealing effect of the second flow passage 201 .

In addition, in order to further improve the sealing effect of the second flow passage 201, a fourth sealing ring 440 is provided between the male joint body 200 and the second valve core 230 in the embodiment of the present invention. Specifically, the fourth sealing ring 440 It is an O-ring. It should be noted that when the female joint is rapidly disengaged from the male joint, the second valve core 230 will be quickly reset under the action of the spring force of the second valve core spring 220 to quickly seal the second overflow channel 201, and the fourth sealing ring 440 will play a certain buffering role in this process to avoid direct collision between the second valve core 230 and the positioning shoulder of the male body 200 .

Referring to FIGS. 1 , 2 , 3 and 7 , the female connector body 100 according to the embodiment of the present invention is externally threadedly connected with a fixing sleeve 160 , and the fixing sleeve 160 is sequentially provided with first hydraulic oil communicating with each other from the outside to the inside. The flow channel 161 and the second hydraulic oil flow channel 162 are sequentially provided with a sliding sleeve spring 150 , a positioning sliding sleeve 140 and a position indicating rod 170 in the annular space formed by the fixed sleeve 160 and the female connector body 100 , wherein the sliding sleeve spring 150 The two ends are respectively connected to the positioning sliding sleeve 140 and the female connector body 100 , the position indicating rod 170 is arranged at the front end of the positioning sliding sleeve 140 , and the front end of the fixing sleeve 160 is provided with a through hole for the position indicating rod 170 to pass through. The high-pressure hydraulic oil enters the first hydraulic oil flow passage 161 and the second hydraulic oil flow passage 162 to drive the positioning sliding sleeve 140 to move to the right against the spring force of the sliding sleeve spring 150. It should be noted that the sliding sleeve spring 150 is always in a compressed state, that is, the positioning sliding sleeve 140 is always subjected to the force of the spring to ensure that the positioning sliding sleeve 140 is under the action of the spring force of the sliding sleeve spring 150 before the high-pressure hydraulic oil is injected. Always in the left limit position.

In order to improve the sealing effect between the fixing sleeve 160 and the positioning sleeve 140 , a second sealing ring 420 and a third sealing ring 430 are arranged between the positioning sliding sleeve 140 and the fixing sleeve 160 . Each of the third sealing rings 430 is provided with two O-rings. It should be noted that two sealing grooves for placing the second sealing ring 420 are provided at one end of the outer cylindrical surface of the positioning sliding sleeve 140 , and two sealing grooves for placing the third sealing ring 420 are provided at the other end of the outer cylindrical surface of the positioning sliding sleeve 140 Seal groove of ring 430.

Referring to FIGS. 1 , 2 and 3 , the annular space between the female connector body 100 and the fixing sleeve 160 is divided into a first outer cavity 310 , a second outer cavity 320 and a third outer cavity 330 by the positioning sliding sleeve 140 And the three cavities do not communicate with each other, and the sliding sleeve spring 150 is installed in the first outer cavity 310 . In order to ensure that the high-pressure hydraulic oil can effectively act on the positioning sliding sleeve 140, the second outer cavity 320 in the embodiment of the present invention is communicated with the second hydraulic oil flow passage 162, and the radial dimension of the second outer cavity 320 is larger than that of the second hydraulic oil runner 162 . Through the above settings, it can be ensured that the positioning sliding sleeve 140 will not block the second hydraulic oil flow channel 162 during the movement process, so as to ensure that the high-pressure hydraulic pressure can always act on the positioning sliding sleeve 140, so as to realize the rapid sliding of the positioning sliding sleeve 140 to complete the hydraulic pressure. Quick disconnect for female connectors. It should be noted that the setting of the position indicating rod 170 in the third outer cavity 330 is used to determine the position of the positioning sliding sleeve 140 in the annular space between the female joint body 100 and the fixed sleeve 160, and the external hydraulic system can start or stop high pressure according to the position information Injection of hydraulic oil.

As shown in Figure 6 and Figure 8, in order to achieve the stability and reliability of the connection between the male joint and the female joint when receiving oil, in addition to fixing the shuttle tanker and the oil receiving platform, it is also necessary to carry out the connection between the male joint and the female joint. position. The positioning between the male joint and the female joint of the present invention is realized by the positioning sliding sleeve 140 cooperating with the positioning balls 180. Specifically, a plurality of positioning balls 180 are arranged at equal intervals in the circumferential direction of the female joint body 100, and the positioning balls 180 include positioning balls 181. And the annular plate 182 fixedly connected to the outside of the positioning balls 181, wherein the positioning balls 181 and the annular plate 182 have an integral structure with high strength and long service time. A positioning sliding sleeve 140 is slidably installed in the annular space between the female connector body 100 and the fixing sleeve 160 , and a sliding sleeve positioning groove 141 and an indicator rod installation groove 142 are opened on the positioning sliding sleeve 140 . A positioning ball mounting hole 102 and a positioning ball slideway 103 are opened. The positioning ball 181 is installed in the positioning ball installation hole 102, the annular plate 182 is slidably installed in the positioning ball slideway 103, and the male joint body 200 is provided with an annular positioning channel 202. When receiving oil, the positioning ball 180 and the sliding sleeve positioning groove 141 are at the same time. The inner surface and the outer surface of the positioning ball slide 103 are in contact. When the sliding sleeve positioning grooves 141 are located above the positioning beads 180, the positioning beads 180 are radially fixed, and when the sliding sleeve positioning grooves 141 are separated from the positioning beads 180, the radial fixing of the positioning beads 180 is released.

As shown in FIG. 1 , FIG. 2 , and FIG. 3 , the inner cavity of the female connector body 100 is divided by the first valve core 130 into a first inner cavity 340 and a second inner cavity 350 , which are opened when the first flow passage 101 is opened. connected to each other, and isolated from each other at other times; the inner cavity of the male body 200 is divided into a third inner cavity 360 and a fourth inner cavity 370 by the second valve core 230, and the two communicate with each other when the second flow passage 201 is opened, and are connected to each other at other times. Blocking; after the female connector body 100 and the male connector body 200 are joined, the second inner cavity 350 communicates with the third inner cavity 360 . It should be noted that the opening pressures of the first overflow channel 101 and the second overflow channel 201 in the embodiment of the present invention can be adjusted. Specifically, the first bracket 110 is threadedly connected to the inner cavity of the female connector body 100 and By adjusting the position of the first bracket 110, the elastic force of the first valve core spring 120 is changed, thereby changing the opening pressure of the first flow passage 101; the second bracket 210 is threadedly connected to the inner cavity of the male body 200 and adjusted The position of the second bracket 210 changes the elastic force of the second valve core spring 220 , thereby changing the opening pressure of the second flow passage 201 .

It should be noted that, in the embodiment of the present invention, a first bracket center flow channel 111 and a plurality of first bracket flow channels distributed around the circumference of the first bracket center flow channel 111 are provided on the first bracket 110 112 , a second bracket center flow channel 211 and a plurality of second bracket flow channels 212 distributed around the circumference of the second bracket center flow channel 211 are opened on the second bracket 210 .

Before receiving oil, firstly fix the oil receiving platform of the shuttle tanker. At this time, the first valve core 130 blocks the first flow passage 101, and the second valve core 130 blocks the second flow passage 201. The sliding sleeve 140 is at the left limit position, the positioning ball 180 is fixed radially, the position indicating rod 170 is at the left limit position, and the high pressure hydraulic oil is not injected; 200 When the distance between the end face of the oil outlet and the end face of the oil inlet of the female connector body 100 reaches the set distance, the external hydraulic system injects high-pressure hydraulic oil into the first hydraulic oil flow channel 161 of the fixed sleeve 160 to drive the positioning sliding sleeve 140 to overcome The spring force moves to the right limit position, and the indicator rod 170 is used to determine whether the positioning sliding sleeve 140 reaches the right limit. At this time, the sliding sleeve positioning groove 141 leaves the positioning bead 180 to release the radial fixation of the positioning bead 180. When the joint continues to approach the female joint body 100 and passes through the positioning bead 180, the unfixed positioning bead 180 moves radially outward to ensure that the mating between the female joint body 100 and the male joint body 200 will not be affected; when the male joint body 200 When the distance between the oil outlet end face and the oil inlet end face of the female connector body 100 reaches the set oil receiving distance, the positioning bead 180 is aligned with the annular positioning channel 202, and the external hydraulic system will inject the oil into the first hydraulic oil flow channel 161. The high-pressure hydraulic oil is drawn out, the positioning sleeve 140 quickly returns to the left limit position under the action of the spring force, and the indicator rod 170 is used to determine whether the positioning sleeve 140 reaches the left limit. The positioning balls 180 are radially fixed, thereby completing the connection and positioning of the male and female connectors.

After the connection and positioning of the male and female joints is completed, the oil starts to receive oil. During the connection and positioning of the male and female joints, the first valve core 130 and the second valve core 230 first contact and then move in opposite directions at the same time under the interaction force. The spring force of a spool spring 120 and a second spool spring 220 opens the first overflow channel 101 and the second overflow channel 201. After the oil flows out from the high pressure pipe, it first flows through the center channel of the first bracket 111 and the first bracket overflow channel 112 enter the first inner cavity 340, then flow through the first overflow channel 101 into the second inner cavity 350 and the third inner cavity 360, and then flow through the second overflow channel 201 enters the fourth inner cavity 370, and finally flows through the second bracket center flow channel 211 and the second bracket over-flow channel 212 into the oil receiving manifold.

It should be noted that, in this embodiment of the present invention, the indicator rod 170 can be used to determine whether the positioning sliding sleeve 140 reaches the right limit. When the positioning sliding sleeve 140 reaches the right limit position, the indicating rod 170 is flush with the end surface of the fixing sleeve 160. When the 140 reaches the left limit position, the length of the indicator rod 170 extending from the end face of the fixed sleeve 160 is determined, and the length dimension can be known by reading the scale of the indicator rod 170 .

When encountering emergency conditions, when the shuttle tanker and the oil receiving platform need to be separated urgently, the oil receiving pump first stops working, and then the external hydraulic system injects high-pressure hydraulic oil into the first hydraulic oil flow channel 161 to drive the positioning sleeve 140 to overcome the spring The force moves to the right to the right limit position, and the indicator rod 170 is used to determine whether the positioning sliding sleeve 140 reaches the right limit. At this time, the sliding sleeve positioning groove 141 leaves the positioning bead 180 to release the radial fixation of the positioning bead 180. At this time The external power component drives the male connector 200 to be quickly separated from the female connector body 100. During this process, the first valve core 130 and the second valve core 230 act on the spring force of the first valve core spring 120 and the second valve core spring 220 respectively. The first overflow channel 101 and the second overflow channel 201 are quickly and automatically blocked to avoid oil leakage, and the shuttle tanker is kept away from the oil receiving platform.

The invention provides an emergency disengagement device for the oil receiving port of the shuttle oil tanker, which is used for the oil receiving operation of the shuttle oil tanker and the oil receiving platform. When encountering an emergency or emergency, the shuttle oil tanker can be quickly separated from the oil receiving platform. Casualties and property losses, protect the operation equipment; it can also quickly and automatically close the pipeline after the shuttle tanker is separated from the oil receiving platform, so as to avoid the pollution of the environment and the potential safety hazards caused by oil leakage. When the female connector and the male connector of the present invention are quickly disengaged, the first valve core 130 and the second valve core 230 will be quickly reset respectively under the action of the spring force of the first valve core spring 120 and the second valve core spring 220 to quickly block the first valve core 130 and the second valve core spring 220 respectively. The first overflow channel 101 and the second overflow channel 201 , the first sealing ring 410 and the fourth sealing ring 440 will play a certain buffering role in the process, preventing the first valve core 130 from being positioned with the female connector body 100 Direct collision occurs between the shaft shoulders and between the second valve core 230 and the positioning shaft shoulder of the male body 200 to prevent complete separation due to excessive force, thereby avoiding unnecessary trouble and loss when restoring the connection. The invention improves the reliability and stability when the shuttle tanker receives oil on the oil receiving platform, and can complete the oil receiving operation more conveniently and safely. It provides a reliable guarantee for the safety of receiving oil.

Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, provided that these modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims (6)

1. An emergency disengagement device for a shuttle oil tanker receiving oil port, characterized in that it comprises a female joint connected with a high-pressure manifold and a male joint connected with the oil receiving manifold, wherein the female joint comprises a female joint body, which is arranged on the The first bracket, the first valve core spring and the first valve core in the inner cavity of the female joint, the two ends of the first valve core spring are respectively fixedly connected to the first bracket and the first valve core, the female joint body The external thread is connected with a fixing sleeve, and a sliding sleeve spring, a positioning sliding sleeve and a position indicating rod are sequentially arranged in the annular space formed by the fixing sleeve and the female connector body, and the two ends of the sliding sleeve spring are respectively connected with the positioning sliding sleeve. sleeve and the female connector body, the position indicating rod is arranged at the front end of the positioning sliding sleeve, the female connector body is provided with a plurality of positioning beads, and the male connector includes a male connector body, which is sequentially arranged on the male connector The second bracket, the second valve core spring and the second valve core in the inner cavity, the two ends of the second valve core spring are respectively fixedly connected to the second bracket and the second valve core, the female connector body and the male connector body A first over-current flow channel and a second over-current flow channel are respectively opened on the upper part, and a first hydraulic oil flow channel and a second hydraulic oil flow channel which are communicated with each other are sequentially opened on the fixed sleeve from the outside to the inside. , the female connector body is sleeved on the outside of the male connector body and is axially positioned by the positioning ball, the first valve core and the second valve core are first contacted and then moved to the opposite direction under the interaction force to open at the same time The first overflow channel and the second overflow channel make the oil flow out from the high pressure manifold to the oil receiving manifold after passing through the first overflow channel and the second overflow channel; The first valve core is a rotary body structure, including a first valve core body, a first tray fixedly connected on one side of the first valve core body, and a first valve core fixed on the other side of the first valve core body. A frustum, the thickness of the first valve core body is L2, the diameter of the first flow passage is L1, and the relationship L2>L1 is satisfied to ensure that the first valve core can prevent the first flow passage. The flow channel is effectively blocked; the length of the positioning shoulder of the female joint body is L3, the difference between the radius of the first valve core body and the radius of the first cone frustum is L4, and the relationship L4>L3 is satisfied, ensuring that the The first valve core is tightly fitted with the positioning shoulder of the female connector body; The second valve core is a rotary body structure, including a second valve core body, a second tray fixedly connected to one side of the second valve core body, and a first valve core fixed to the other side of the second valve core body. Two-cone frustum, the thickness of the second valve core body is L6, the diameter of the second flow passage is L5, and the relationship L6>L5 is satisfied to ensure that the second valve core can be used for the second flow passage. The flow channel is effectively blocked; the length of the positioning shoulder of the male joint body is L7, the difference between the radius of the second valve core body and the radius of the second cone frustum is L8, and the relationship L8>L7 is satisfied, ensuring that the The second valve core is in close contact with the positioning shoulder of the male body; The positioning sliding sleeve is slidably installed in the annular space between the female connector body and the fixing sleeve, and a sliding sleeve positioning groove and an indicator rod installation groove are opened on it. When the sliding sleeve positioning groove is located in the positioning The positioning beads are radially fixed when they are above the beads. When the sliding sleeve positioning grooves leave above the positioning beads, the radial fixing of the positioning beads is released. The female connector body is provided with positioning beads mounting holes. and a positioning ball slideway, the positioning ball includes a positioning ball and an annular plate fixedly connected to the outside of the positioning ball, the positioning ball is installed in the positioning ball mounting hole, and the annular plate is slidably installed on the positioning ball slide In the channel, the male joint body is provided with an annular positioning channel, and the positioning ball is in contact with the inner surface of the positioning groove of the sliding sleeve and the outer surface of the positioning ball slideway at the same time when receiving oil; The female connector body is made of 42CrMo forgings, and the corrosion thickness is reserved, and the male connector body is processed by the tempered 42CrMo material, and the corrosion thickness is reserved. 2 . The emergency disengagement device for the oil receiving port of a shuttle oil tanker according to claim 1 , wherein the annular space between the female joint body and the fixing sleeve is divided into a first outer cavity, The second outer cavity and the third outer cavity, the three cavities are not communicated with each other, wherein a sliding sleeve spring is arranged in the first outer cavity, the second outer cavity is communicated with the second hydraulic oil flow channel and The radial dimension of the second outer cavity is larger than that of the second hydraulic oil flow channel to ensure that the second hydraulic oil flow channel will not be blocked during the movement of the positioning sleeve. The position indicating rod is used to display the position of the positioning sliding sleeve. 3 . The emergency disengagement device for the oil receiving port of a shuttle tanker according to claim 1 , wherein the inner cavity of the female joint is divided into a first inner cavity and a second inner cavity by the first valve core. 4 . The two are connected when the first overflow channel is opened, and are isolated from each other at other times. The inner cavity of the male joint is divided into a third inner cavity and a fourth inner cavity by the second valve core, and the two are in the second inner cavity. The flow passage communicates when it is opened, and is isolated from each other at other times. After the female connector body and the male connector body are joined, the second inner cavity communicates with the third inner cavity. 4 . The emergency disconnecting device for the oil receiving port of a shuttle oil tanker according to any one of claims 1 to 3 , wherein a first sealing ring is provided between the female joint body and the first valve core, and the The first sealing ring is an O-shaped sealing ring; a second sealing ring and a third sealing ring are arranged between the positioning sliding sleeve and the fixing sleeve, and both the second sealing ring and the third sealing ring are O-shaped sealing rings A fourth sealing ring is arranged between the male body and the second valve core, and the fourth sealing ring is an O-shaped sealing ring. 5 . The emergency disconnecting device for the oil receiving port of a shuttle oil tanker according to claim 1 , wherein the first bracket is threadedly connected to the inner cavity of the female joint, and the first bracket is adjusted by adjusting the first bracket. 6 . The position of the bracket changes the elastic force of the first valve core spring, thereby changing the opening pressure of the first flow passage. A plurality of the first carrier flow passages are distributed around the circumference of the central flow passage of the holder. 6 . The emergency disengagement device for the oil receiving port of a shuttle oil tanker according to any one of claims 1 to 4 , wherein the second bracket is threadedly connected to the inner cavity of the male joint, and the second bracket is adjusted by adjusting the second bracket. 7 . The position of the bracket changes the elastic force of the second valve core spring, thereby changing the opening pressure of the second flow passage. A plurality of the second bracket flow channels are distributed on the circumference of the central flow channel of the second bracket.

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