Split valve closing debugging mechanism with emergency release device (ERC)

Abstract

The invention relates to the technical field of special fluid loading and unloading equipment, in particular to a split valve closing debugging mechanism with an emergency release device (ERC), which comprises a main valve body externally provided with a hoop, the main valve body is composed of an upper ball valve, a lower ball valve, an upper material guide pipe fixed to an opening in the upper end of the upper ball valve through an upper flange bolt and a lower material guide pipe fixed to an opening in the lower end of the lower ball valve through a lower flange bolt. According to the split type valve closing debugging mechanism with the emergency release device ERC, the split type detachable structural design is adopted, and earlier-stage installation and later-stage maintenance can be facilitated; the first longitudinal flow guide pipe and the second longitudinal flow guide pipe are fixedly assembled through the side mounting frames mounted on the side walls of the upper ball valve and the lower ball valve in an externally hung mode, the split valve closing module is controlled through external flow guide, hoop operation cannot be affected in the control process, and operation is safer and more stable.

Description

Technical Field

[0001] The invention relates to the technical field of special equipment for fluid loading and unloading, in particular to a split valve closing and debugging mechanism with an emergency release device ERC. Background Art

[0002] The marine loading and unloading arm is a special equipment used for docking pipelines and ships for loading and unloading liquids at port terminals. Such as marine loading and unloading arms for LNG, oil products, chemical media, etc., and the emergency release device ERC is an important component on the marine loading and unloading arm, which is used to quickly separate the arm and the ship in an emergency situation on site or when a fire occurs. The valve closing release device in the middle part of the emergency release device is an important device for closing the valve and disengaging the clamp, ensuring the possibility and reliability of emergency separation between the loading and unloading ship and the pipeline on the dock. The existing valve closing release structure has the following problems: 1. When debugging the emergency release device, it only needs to close the ball valve and does not require opening the clamp, but after the existing actuator is driven, the clamp will continue to open after closing the ball valve; 2. Due to manufacturing and assembly errors, the time for opening the clamp of the existing emergency release device may appear before the valve is completely closed, and it cannot be adjusted, resulting in insufficient reliability and difficulty in later maintenance. Summary of the invention

[0003] The technical problem to be solved by the present invention is that the current emergency release device will link and control the clamp during debugging, which is prone to interference and misoperation, resulting in insufficient reliability and great difficulty in subsequent maintenance.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a split valve closing and debugging mechanism with an emergency release device ERC, including a main valve body with an external mounting clamp, the main valve body is composed of an upper ball valve, a lower ball valve, an upper material guide pipe fixed to the upper end opening of the upper ball valve by an upper flange bolt, and a lower material guide pipe fixed to the lower end opening of the lower ball valve by a lower flange bolt, a lateral mounting frame is bolted to the inner side of the clamp on the side walls of the upper ball valve and the lower ball valve, a longitudinal first guide pipe and a longitudinal second guide pipe are fixedly assembled inside the lateral mounting frame, a lateral control through hole is opened on the front side wall of the upper ball valve and the lower ball valve, an external control shaft protruding toward the lateral control through hole is provided on the valve core side wall of the upper ball valve and the lower ball valve, and a split valve closing module for controlling the external control shaft is bolted to the outer side surface of the upper ball valve and the lower ball valve.

[0005] The upper end bolts of the side wall of the side mounting frame are fixed with a third guide pipe for externally connecting to the oil supply pipe and a fourth guide pipe for externally connecting to the return pipe.

[0006] The upper end of the first longitudinal flow guide pipe is fixedly connected to the lower end of the third flow guide pipe through the first connecting pipe, and the upper end of the second longitudinal flow guide pipe is fixedly connected to the lower end of the fourth flow guide pipe through the second connecting pipe.

[0007] The first longitudinal flow guide tube and the second longitudinal flow guide tube are both provided with electrically controlled switching valves at positions corresponding to the split valve closing modules.

[0008] The electrically controlled switching valve includes an internal valve housing fixed between a first longitudinal flow guide tube and a second longitudinal flow guide tube, a rotating valve core movably installed in the internal valve housing, an adjusting motor fixed on the outer side surface of the internal valve housing, and a first transverse flow guide tube and a second transverse flow guide tube fixed on the side wall of the internal valve housing.

[0009] Side control levers are symmetrically arranged on the outer side surface of the external control shaft.

[0010] The split valve closing module includes an annular fixed cover shell fixed to the side walls of the upper ball valve and the lower ball valve by external mounting bolts, an annular closed cover shell movably mounted at the inner opening position of the annular fixed cover shell, a third transverse flow guide pipe fixed to the side wall of the annular fixed cover shell, a fourth transverse flow guide pipe fixed to the side wall of the annular fixed cover shell, a first arcuate flow guide groove and a second arcuate flow guide groove opened on the inner side surface of the annular fixed cover shell, a first inner control block and a second inner control block fixed on the side wall of the annular closed cover shell, and a first control groove and a second control groove fixed on the assembly surface of the annular closed cover shell.

[0011] The first transverse air guide pipe is axially connected and fixed to the third transverse air guide pipe, and the second transverse air guide pipe is axially connected and fixed to the fourth transverse air guide pipe.

[0012] The side walls of the inner valve housing are provided with lateral assembly slots matching with the first longitudinal flow guide tube and the second longitudinal flow guide tube. The first longitudinal flow guide tube and the second longitudinal flow guide tube are inserted into the lateral assembly slots and fixedly connected with the inner valve housing.

[0013] The rotary valve core includes a first regulating valve core, a second regulating valve core, and an embedded internal gear track fixed on the first regulating valve core and the second regulating valve core. The regulating motor is inserted into the embedded internal gear track through the regulating gear on the output shaft and meshes with the embedded internal gear track for transmission.

[0014] The beneficial effects of the present invention are:

[0015] (1) The split valve closing and debugging mechanism with an emergency release device ERC of the present invention adopts a split detachable structure design, which can facilitate early installation and later maintenance;

[0016] (2) The first longitudinal flow guide pipe and the second longitudinal flow guide pipe are fixedly assembled by means of a side mounting frame externally mounted on the side wall of the upper ball valve and the lower ball valve, and the split valve closing module is controlled by external flow diversion. The control process will not affect the clamp operation, and the operation is safer and more stable;

[0017] (3) The split valve closing module adopts a detachable structure design, which can be easily matched with the external control shaft on the valve core. The valve core is controlled by an arc hydraulic drive, which can not only ensure the control accuracy, but also reduce the later use cost;

[0018] (4) The electrically controlled switching valve between the first longitudinal flow guide pipe and the second longitudinal flow guide pipe can be used to adjust the liquid supply and return state of the split valve closing module, making the control more efficient and convenient;

[0019] (5) The electronically controlled switching valve can precisely adjust and control the split valve closing modules at different positions, and the operation methods are more diverse;

[0020] (6) The control mechanism of the split valve closing module is located on the inside, and the operating mechanism will not interfere with the clamp, which improves the safety of the clamp and thus improves the overall reliability of the mechanism;

[0021] (7) The entire device can be directly installed and modified on the outside of the existing valve body, with low modification cost and simple and firm structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2 It is a partial schematic diagram of the assembly end of the split valve shut-off module in the present invention.

[0025] Figure 3 It is a schematic diagram of the internal structure of the longitudinally arranged electric-controlled switching valve in the present invention.

[0026] Figure 4 It is a schematic diagram of the internal structure of the horizontally placed electric-controlled switching valve in the present invention.

[0027] Figure 5 It is a schematic diagram of the internal structure of the split valve shut-off module in the present invention. DETAILED DESCRIPTION

[0028] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A split valve closing and debugging mechanism with an emergency release device ERC is shown, comprising a main valve body with an externally mounted clamp 1, the main valve body consisting of an upper ball valve 2, a lower ball valve 3, an upper material guide pipe 4 fixed to the upper end opening of the upper ball valve 2 by upper flange bolts, and a lower material guide pipe 5 fixed to the lower end opening of the lower ball valve 3 by lower flange bolts, a lateral mounting frame 6 is bolted to the inner side of the clamp 1 on the side walls of the upper ball valve 2 and the lower ball valve 3, a longitudinal first flow guide pipe 7 and a longitudinal second flow guide pipe 8 are fixedly assembled inside the lateral mounting frame 6, a lateral control through hole is opened on the front side wall of the upper ball valve 2 and the lower ball valve 3, an external control shaft 9 protruding toward the lateral control through hole is provided on the valve core side wall of the upper ball valve 2 and the lower ball valve 3, and a split valve closing module 10 for controlling the external control shaft 9 is bolted to the outer side of the upper ball valve 2 and the lower ball valve 3.

[0031] Working principle: hydraulic oil is input through the first longitudinal guide pipe 7, returned through the second longitudinal guide pipe 8, and then introduced into the split valve closing module 10. The split valve closing module 10 is used to drive the external control shaft 9 to rotate, thereby controlling the rotation of the valve core inside the upper ball valve 2 and the lower ball valve 3.

[0032] The design of the first longitudinal flow guide tube 7 and the second longitudinal flow guide tube 8 can be circumvented according to the position of the clamp to avoid interference with the clamp, thereby not affecting the operation and stability of the clamp.

[0033] In order to cooperate with the top oil supply and return, and cooperate with the external circulating oil circuit to hydraulically control the mechanism, the upper end of the side wall of the side mounting frame 6 is bolted with a third guide pipe 11 for an external oil supply pipe and a fourth guide pipe 12 for an external return pipe.

[0034] In order to cooperate with each other in series, the upper end of the first longitudinal flow guide pipe 7 is fixedly connected to the lower end of the third flow guide pipe 11 through the first connecting pipe, and the upper end of the second longitudinal flow guide pipe 8 is fixedly connected to the lower end of the fourth flow guide pipe 12 through the second connecting pipe.

[0035] The first longitudinal flow guide pipe 7 is connected to the external oil supply pipe through the third flow guide pipe 11 , and the second longitudinal flow guide pipe 8 is connected to the external return pipe through the fourth flow guide pipe 12 .

[0036] In order to cooperate with the lateral control, the first longitudinal flow conduit 7 and the second longitudinal flow conduit 8 are both provided with an electrically controlled switching valve 13 at the position corresponding to the split valve closing module 10 .

[0037] In order to cooperate with the rotation control switching, the electrically controlled switching valve 13 includes an internal valve shell 131 fixed between the longitudinal first flow guide tube 7 and the longitudinal second flow guide tube 8, a rotating valve core 132 movably installed in the internal valve shell 131, an adjusting motor 133 fixed on the outer surface of the internal valve shell 131, and a first transverse flow guide tube 134 and a second transverse flow guide tube 135 fixed on the side wall of the internal valve shell 131.

[0038] The regulating motor 133 controls the rotation of the rotary valve core 132 to switch the communication state between the first longitudinal flow conduit 7 and the second longitudinal flow conduit 8 and the first transverse flow conduit 134 and the second transverse flow conduit 135 .

[0039] In order to cooperate with the desired control, side control rods 14 are symmetrically arranged on the outer side surface of the external control shaft 9.

[0040] In order to cooperate with the control, the split valve closing module 10 includes an annular fixed cover shell 101 fixed on the side walls of the upper ball valve 2 and the lower ball valve 3 by external mounting bolts, an annular closed cover shell 102 movably mounted at the inner opening position of the annular fixed cover shell 101, a third transverse guide tube 103 fixed on the side wall of the annular fixed cover shell 101, a fourth transverse guide tube 104 fixed on the side wall of the annular fixed cover shell 101, a first arc guide groove 105 and a second arc guide groove 106 opened on the inner side surface of the annular fixed cover shell 101, a first inner control block 107 and a second inner control block 108 fixed on the side wall of the annular closed cover shell 102, and a first control groove and a second control groove fixed on the assembly surface of the annular closed cover shell 102.

[0041] The annular fixed cover shell 101 and the annular closed cover shell 102 are movably assembled to close the outer openings of the first arc-shaped guide groove 105 and the second arc-shaped guide groove 106, thereby forming an arc-shaped hydraulic chamber, and then the first inner control block 107 and the second inner control block 108 are hydraulic pistons located in the hydraulic chambers at corresponding positions respectively.

[0042] While fixing the annular fixed cover shell 101 on the side walls of the upper ball valve 2 and the lower ball valve 3, the first control groove and the second control groove are respectively sleeved on the two side control rods on the outer side of the external control shaft 9, and the third transverse guide pipe 103 is respectively fixedly connected to the inner walls on the same side of the first arc guide groove 105 and the second arc guide groove 106, and the fourth transverse guide pipe 104 is respectively fixedly connected to the inner walls on the same side of the first arc guide groove 105 and the second arc guide groove 106. Then, when the first transverse flow guide tube 134 supplies liquid to the inside of the third transverse flow guide tube 103, the second transverse flow guide tube 135 will return liquid from the inside of the fourth transverse flow guide tube 104. At this time, the annular closed cover shell 102 can be controlled to drive the external control shaft 9 to rotate clockwise; conversely, when the second transverse flow guide tube 135 supplies liquid from the inside of the fourth transverse flow guide tube 104, the first transverse flow guide tube 134 returns liquid to the inside of the third transverse flow guide tube 103. At this time, the annular closed cover shell 102 can be controlled to drive the external control shaft 9 to rotate counterclockwise.

[0043] In order to cooperate with the lateral assembly, the first transverse air guide pipe 134 is axially connected and fixed to the third transverse air guide pipe 103 , and the second transverse air guide pipe 135 is axially connected and fixed to the fourth transverse air guide pipe 104 .

[0044] The annular fixed cover 101 firstly connects and fixes the first transverse flow guide pipe 134 and the third transverse flow guide pipe 103 axially, and connects and fixes the second transverse flow guide pipe 135 and the fourth transverse flow guide pipe 104 axially, and then fixes them on the outer sides of the upper ball valve 2 and the lower ball valve 3 by bolts.

[0045] Lateral assembly slots 136 cooperating with the first longitudinal flow guide tube 7 and the second longitudinal flow guide tube 8 are provided on the two side walls of the internal valve housing 131 . The first longitudinal flow guide tube 7 and the second longitudinal flow guide tube 8 are fixedly connected with the internal valve housing 131 by being inserted into the lateral assembly slots 136 .

[0046] In order to cooperate with the adjustment, the rotating valve core 132 includes a first regulating valve core 1321 and a second regulating valve core 1322 movably installed in the internal valve housing 131, and an embedded internal gear rail 1323 fixed on the first regulating valve core 1321 and the second regulating valve core 1322. The adjusting motor 133 is inserted into the embedded internal gear rail 1323 through the adjusting gear 1331 on the output shaft and meshes with the embedded internal gear rail 1323 for transmission.

[0047] The regulating motor 133 is respectively fixed on both sides of the internal valve housing 131, and then meshes with the embedded internal gear rails 1323 on the first regulating valve core 1321 and the second regulating valve core 1322 through the regulating gear 1331. The first regulating valve core 1321 and the second regulating valve core 1322 are respectively controlled to rotate by the regulating motors 133 at different positions, and then the first longitudinal guide pipe 7 or the second longitudinal guide pipe 8 is connected to the first transverse guide pipe 134 or the second transverse guide pipe 135 by the guide grooves on the side walls of the first regulating valve core 1321 and the second regulating valve core 1322, and the split valve closing module 10 is controlled by switching the flow direction.

[0048] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A split valve closing and debugging mechanism with an emergency release device ERC, comprising a main valve body with an externally mounted clamp (1), characterized in that: The main valve body comprises an upper ball valve (2), a lower ball valve (3), an upper material guide pipe (4) fixed to the upper end opening of the upper ball valve (2) by upper flange bolts, and a lower material guide pipe (5) fixed to the lower end opening of the lower ball valve (3) by lower flange bolts. A side mounting frame (6) is bolted to the inner side of the clamp (1) on the side walls of the upper ball valve (2) and the lower ball valve (3). A longitudinal first flow guide pipe (7) and a longitudinal second flow guide pipe (8) are fixedly assembled inside the side mounting frame (6). A lateral control through hole is opened on the front side wall of the upper ball valve (2) and the lower ball valve (3). The valve core side wall of the upper ball valve (2) and the lower ball valve (3) has an external control shaft (9) protruding toward the lateral control through hole. A split valve closing module (10) for controlling the external control shaft (9) is bolted to the outer side surface of the upper ball valve (2) and the lower ball valve (3).

2. A split valve closing and debugging mechanism with an emergency release device ERC according to claim 1, characterized in that: A third flow guide pipe (11) for externally connecting to an oil supply pipe and a fourth flow guide pipe (12) for externally connecting to a return pipe are fixed by bolts on the upper end of the side wall of the side mounting frame (6).

3. A split valve closing and debugging mechanism with an emergency release device ERC according to claim 2, characterized in that: The upper end of the first longitudinal flow guide pipe (7) is fixedly connected to the lower end of the third flow guide pipe (11) via a first connecting pipe, and the upper end of the second longitudinal flow guide pipe (8) is fixedly connected to the lower end of the fourth flow guide pipe (12) via a second connecting pipe.

4. A split valve closing and debugging mechanism with an emergency release device ERC according to claim 2, characterized in that: An electrically controlled switching valve (13) is provided on the first longitudinal flow guide tube (7) and the second longitudinal flow guide tube (8) at positions corresponding to the split valve closing modules (10).

5. A split valve closing and debugging mechanism with an emergency release device ERC according to claim 4, characterized in that: The electrically controlled switching valve (13) comprises an internal valve housing (131) fixed between a first longitudinal flow guide tube (7) and a second longitudinal flow guide tube (8), a rotary valve core (132) movably mounted in the internal valve housing (131), an adjusting motor (133) fixed on the outer side of the internal valve housing (131), and a first transverse flow guide tube (134) and a second transverse flow guide tube (135) fixed on the side wall of the internal valve housing (131).

6. A split valve closing and debugging mechanism with an emergency release device ERC according to claim 1, characterized in that: Side control rods (14) are symmetrically arranged on the outer side surface of the external control shaft (9).

7. A split valve closing and debugging mechanism with an emergency release device ERC according to claim 1, characterized in that: The split valve closing module (10) comprises an annular fixed cover (101) fixed to the side walls of the upper ball valve (2) and the lower ball valve (3) by external mounting bolts, an annular closed cover (102) movably mounted at the inner opening position of the annular fixed cover (101), a third transverse flow guide pipe (103) fixed to the side wall of the annular fixed cover (101), a fourth transverse flow guide pipe (104) fixed to the side wall of the annular fixed cover (101), a first arc-shaped flow guide groove (105) and a second arc-shaped flow guide groove (106) provided on the inner side surface of the annular fixed cover (101), a first inner control block (107) and a second inner control block (108) fixed to the side wall of the annular closed cover (101), and a first control groove and a second control groove fixed to the assembly surface of the annular closed cover (102).

8. A split valve closing and debugging mechanism with an emergency release device ERC according to claim 7, characterized in that: The first transverse flow guide tube (134) is axially connected and fixed to the third transverse flow guide tube (103), and the second transverse flow guide tube (135) is axially connected and fixed to the fourth transverse flow guide tube (104).

9. A split valve closing and debugging mechanism with an emergency release device ERC according to claim 5, characterized in that: The side walls of the inner valve housing (131) are provided with lateral assembly slots (136) that match the first longitudinal flow guide tube (7) and the second longitudinal flow guide tube (8); the first longitudinal flow guide tube (7) and the second longitudinal flow guide tube (8) are inserted into the lateral assembly slots (136) to be fixedly connected with the inner valve housing (131).

10. A split valve closing and debugging mechanism with an emergency release device ERC according to claim 5, characterized in that: The rotary valve core (132) comprises a first regulating valve core (1321) movably mounted in an internal valve housing (131), a second regulating valve core (1322), and an embedded internal gear rail (1323) fixed on the first regulating valve core (1321) and the second regulating valve core (1322); the regulating motor (133) is inserted into the embedded internal gear rail (1323) through the regulating gear (1331) on the output shaft and meshes with the embedded internal gear rail (1323) for transmission.

Images