Extractor for valve seat of exhaust valve of BOG booster compressor

Abstract

The utility model relates to the technical field of compressor air valve maintenance, in particular to a valve seat extractor for an exhaust valve of a BOG (Boil Off Gas) booster compressor. The extractor for the valve seat of the exhaust valve of the BOG booster compressor comprises a sleeve and an operation assembly, the sleeve is a cylinder body with one end open, the end portion of the open end of the sleeve is provided with a positioning bayonet matched with the valve seat of the exhaust valve, and the operation assembly is connected to the other end of the sleeve and used for driving the sleeve to rotate. The tool has the advantages of being simple and reasonable in structural design, capable of ingeniously assisting in taking out the exhaust valve seat and very easy and fast to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor gas valve maintenance, in particular to a BOG booster compressor exhaust valve seat extractor. Background Art

[0002] The exhaust valves of each level of the BOG reciprocating booster compressor at the LNG receiving station are arranged on the lower side of each row of cylinders. When assembling each valve, first align the two symmetrical fixing pins on the side of the valve seat with the two vertical opening grooves corresponding to the seat of the cylinder valve chamber, push the valve in and rotate it slightly, so that the valve pin enters the slide groove connected to the opening groove and parallel to the valve chamber seat, so that the valve is temporarily fixed on the seat, which is convenient for the subsequent assembly of the pressure valve cover and the pressure valve cover; each valve chamber seat opening groove has a 10mm long parallel slide groove at both ends, and the rear end is an arc surface extending the side of the seat; when the valve is disassembled, the pins on both sides of some valves are screwed into the arc surface of the slide groove, so that the valve is stuck on the seat; using both hands or valve extractors in the valve chamber cannot rotate and remove the valve. Since there is no special removal tool at present, operators often need to find various tools to try to remove the valve, which is inconvenient.

[0003] Based on this, it is necessary to develop a valve seat extractor specifically for the exhaust valve of the BOG booster compressor. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a valve seat extractor for an exhaust valve of a BOG booster compressor, which effectively overcomes the defects of the prior art.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A BOG booster compressor exhaust valve seat extractor comprises a sleeve and an operating assembly. One end of the sleeve is open, and the end of the open end is provided with a positioning bayonet adapted to the exhaust valve seat. The operating assembly is connected to the other end of the sleeve and is used to drive the sleeve to rotate.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the sleeve comprises a cylindrical body with an open end and a removal portion, wherein the removal portion comprises a circular ring and the positioning bayonet arranged at intervals along the circumferential direction at one end of the circular ring, and the other end of the circular ring is inserted into the open end of the body, and the two are detachably connected.

[0009] Furthermore, the other end side wall of the circular ring is connected to the one end side wall of the cylinder by bolts penetrating the two.

[0010] Furthermore, the operating assembly includes a cylindrical extension portion and an operating rod, one end of the extension portion is integrally connected to the other end of the sleeve, and the operating rod vertically penetrates the other end of the extension portion.

[0011] Furthermore, the operating assembly includes a bent torsion bar, one end of which is vertically connected and fixed to one end of the sleeve.

[0012] Furthermore, the other end of the torsion bar is provided with an anti-slip handle.

[0013] Furthermore, the above-mentioned operating component includes a driving rod and an operating sleeve, one end of the above-mentioned operating sleeve is integrally connected with the other end of the above-mentioned sleeve, and the center lines of the two coincide. The inner wall of the above-mentioned operating sleeve is provided with two spiral and mutually parallel guide grooves, one end of the above-mentioned driving rod extends into the above-mentioned operating sleeve, and guide blocks embedded in the two guide grooves are respectively vertically provided on the opposite sides thereof, and a thrust rod is vertically provided on the other end of the above-mentioned driving rod.

[0014] Furthermore, the operating assembly includes a connector and an electric wrench. A hexagon socket is provided in the middle of the other end of the sleeve. A hexagonal plug is provided at one end of the connector and a pin for plugging into the electric wrench is provided at the other end.

[0015] Furthermore, there are four positioning bayonet holes, which are evenly spaced and distributed along the circumferential direction.

[0016] Furthermore, the above-mentioned sleeve is a steel sleeve.

[0017] The beneficial effects of the utility model are: the structural design is simple and reasonable, the exhaust valve seat can be cleverly assisted in being taken out, and the operation is very simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a plan view of the exhaust valve seat involved in the exhaust valve seat extractor of the BOG booster compressor of the utility model;

[0019] Figure 2 It is a structural schematic diagram of an embodiment of a sleeve in a valve seat extractor for an exhaust valve of a BOG booster compressor of the utility model;

[0020] Figure 3 It is a structural schematic diagram of another embodiment of a sleeve in a valve seat extractor for an exhaust valve of a BOG booster compressor of the utility model;

[0021] Figure 4 It is a structural schematic diagram of an embodiment of a valve seat extractor for an exhaust valve of a BOG booster compressor of the utility model;

[0022] Figure 5It is a structural schematic diagram of another embodiment of the BOG booster compressor exhaust valve seat extractor of the utility model;

[0023] Figure 6 It is a structural schematic diagram of another embodiment of the BOG booster compressor exhaust valve seat extractor of the utility model;

[0024] Figure 7 It is a structural schematic diagram of another embodiment of the BOG booster compressor exhaust valve seat extractor of the utility model.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Sleeve; 2. Operating assembly; 11. Cylinder; 12. Taking-out portion; 21. Extension portion; 22. Operating rod; 23. Driving rod; 24. Operating sleeve; 25. Connector; 26. Electric wrench; 111. Positioning bayonet; 112. Hexagon socket; 121. Ring; 231. Guide block; 232. Thrust rod. DETAILED DESCRIPTION

[0027] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0028] Example 1

[0029] like Figure 2 As shown, the BOG booster compressor exhaust valve seat extractor of this embodiment includes a sleeve 1 and an operating assembly 2. One end of the sleeve 1 is open, and the end of the open end is provided with a positioning bayonet 111 adapted to the exhaust valve seat. The operating assembly 2 is connected to the other end of the sleeve 1 to drive the sleeve 1 to rotate. The sleeve 1 is an integral component, and the positioning bayonet 111 is integrally formed with one end of the sleeve 1.

[0030] In this embodiment, a positioning bayonet 111 is formed integrally at an open end of the sleeve 1, so that the structural strength of the two is high and durable.

[0031] During use, if Figure 1As shown, the end face of the exhaust valve seat has a plurality of concentric rings (denoted by a in the figure), and the concentric rings are connected in the circumferential direction by reinforcing ribs (denoted by b in the figure) extending in the radial direction. When it is necessary to assist in removing the exhaust valve seat, the sleeve 1 is perpendicular to the end face of the exhaust valve seat, and one end of the sleeve 1 is inserted between the concentric rings of two adjacent exhaust valve seats of a matching size, and the positioning bayonet 111 is engaged with the reinforcing rib. After that, the sleeve 1 is driven to rotate by the operating component 2. Since the positioning bayonet 111 is engaged with the reinforcing rib, the torque generated by the rotation of the sleeve 1 can drive the exhaust valve seat to rotate, thereby releasing the engagement between the pin on the exhaust valve and the seat mouth, thereby facilitating removal.

[0032] It should be additionally explained that the exhaust valve seat involved in this embodiment is a product of the prior art, and its specific structure will not be described in detail here.

[0033] Example 2

[0034] like Figure 3 As shown, the sleeve 1 includes a cylindrical body 11 with an open end and a removal portion 12. The removal portion 12 includes a ring 121 and the positioning bayonet 111 arranged at intervals along the circumferential direction at one end of the ring 121. The other end of the ring 121 is inserted into the open end of the body 11, and the two are detachably connected.

[0035] In this embodiment, the positioning bayonet 111 is integrally formed at the end of the circular ring 121, and the circular ring 121 is connected to one end of the cylinder 11 by a detachable socket. When the positioning bayonet 111 is worn or damaged due to long-term use, the circular ring 121 can be removed and replaced with a new one, thereby avoiding the scrapping of the entire sleeve 1 and saving costs.

[0036] Preferably, the other end side wall of the above-mentioned ring 121 is connected to the one end side wall of the cylinder 11 by a bolt (indicated by c in the figure) passing through the two. This connection structure is very simple and convenient. Generally, 2-4 bolts are used to firmly connect the ring 121 and the cylinder 11, and multiple bolts are distributed at intervals in the circumferential direction.

[0037] Example 3

[0038] On the basis of Example 1 and Example 2, Figure 4 As shown, in the BOG booster compressor exhaust valve seat extractor of this embodiment, the above-mentioned operating component 2 includes a cylindrical extension portion 21 and an operating rod 22, one end of the above-mentioned extension portion 21 is integrally connected with the other end of the above-mentioned sleeve 1, and the above-mentioned operating rod 22 vertically penetrates the other end of the above-mentioned extension portion 21.

[0039] In this embodiment, the extension portion 21 is integrally formed with the sleeve 1 and is an extension structure of the sleeve 1. A through hole is provided at the other end of the extension portion 21 and passes through the extension portion 21 vertically. An operating rod 22 is inserted into the through hole. When removing the extension portion 21, the positioning bayonet 111 engages with the reinforcing rib of the valve seat. The sleeve 1 can be removed by holding the operating rod 22 to rotate, which facilitates the application of force.

[0040] Example 4

[0041] On the basis of Example 1 and Example 2, Figure 5 As shown, the operating assembly 2 includes a bent torsion bar, one end of which is vertically connected and fixed to one end of the sleeve 1 .

[0042] In this embodiment, the operating component 2 uses a torsion bar bent at 90 degrees, which is suitable for operation in an environment where there is insufficient operating space along the long axis direction of the sleeve 1 but sufficient operating space in the circumferential direction.

[0043] Preferably, the other end of the torsion bar is provided with an anti-slip handle, which solves the problem that the torsion bar is easily slipped out of the hand due to external factors such as sweating when operating it.

[0044] Example 5

[0045] On the basis of Example 1 and Example 2, Figure 6 As shown, the operating assembly 2 includes a driving rod 23 and an operating sleeve 24. One end of the operating sleeve 24 is integrally connected to the other end of the sleeve 1, and the center lines of the two coincide. The inner wall of the operating sleeve 24 is provided with two spiral guide grooves parallel to each other. One end of the driving rod 23 extends into the operating sleeve 24, and guide blocks 231 embedded in the two guide grooves are vertically provided on opposite sides thereof. A thrust rod 232 is vertically provided on the other end of the driving rod 23.

[0046] In this embodiment, the driving rod 23 is pushed in the long axis direction to drive the operating sleeve 24 to rotate, thereby driving the sleeve 1 to drive the valve seat to rotate. It is suitable for an operating environment with sufficient operating space in the long axis direction but narrow space around.

[0047] Example 6

[0048] On the basis of Example 1 and Example 2, Figure 7 As shown, the operating assembly 2 includes a connector 25 and an electric wrench 26 , a hexagon socket 112 is provided in the middle of the other end of the sleeve 1 , one end of the connector 25 is provided with a hexagonal plug, and the other end is provided with a pin for plugging with the electric wrench 26 .

[0049] In this embodiment, the assembly is completed by the electric wrench 26, the connector 25 and the sleeve 1. The electric wrench 26 drives the connector 25 and the sleeve 1 to rotate, so that the exhaust valve seat can be removed quickly and labor-savingly. The operation is very simple and the work intensity is low.

[0050] Based on the above embodiment, the above positioning bayonet 111 is provided with four and is evenly spaced along the circumferential direction. Generally, the exhaust valve seat has four reinforcing ribs along the circumferential direction, so the number of the positioning bayonet 111 is set to be consistent with the number of the reinforcing ribs, and when removing, the two can be engaged one by one.

[0051] In this embodiment, the sleeve 1 is a steel sleeve with high structural strength and durability.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0057] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A BOG booster compressor exhaust valve seat extractor, characterized in that: The invention comprises a sleeve (1) and an operating assembly (2); one end of the sleeve (1) is open, and the end of the open end is provided with a positioning bayonet (111) adapted to the valve seat of the exhaust valve; the operating assembly (2) is connected to the other end of the sleeve (1) and is used to drive the sleeve (1) to rotate.

2. The BOG booster compressor exhaust valve seat extractor according to claim 1, characterized in that: The sleeve (1) comprises a cylindrical body (11) with an open end and a removal portion (12); the removal portion (12) comprises a circular ring (121) and a positioning bayonet (111) arranged at intervals along the circumferential direction at one end of the circular ring (121); the other end of the circular ring (121) is inserted into the open end of the body (11), and the two are detachably connected.

3. The BOG booster compressor exhaust valve seat extractor according to claim 2, characterized in that: The other end side wall of the circular ring (121) is connected to the one end side wall of the cylinder (11) via bolts penetrating the two.

4. A BOG booster compressor exhaust valve seat extractor according to any one of claims 1 to 3, characterized in that: The operating assembly (2) comprises a cylindrical extension portion (21) and an operating rod (22); one end of the extension portion (21) is integrally connected to the other end of the sleeve (1); and the operating rod (22) vertically penetrates the other end of the extension portion (21).

5. A BOG booster compressor exhaust valve seat extractor according to any one of claims 1 to 3, characterized in that: The operating assembly (2) comprises a bent torsion bar, one end of which is vertically connected and fixed to one end of the sleeve (1).

6. The BOG booster compressor exhaust valve seat extractor according to claim 5, characterized in that: The other end of the torsion bar is provided with an anti-slip handle.

7. A BOG booster compressor exhaust valve seat extractor according to any one of claims 1 to 3, characterized in that: The operating assembly (2) comprises a driving rod (23) and an operating sleeve (24); one end of the operating sleeve (24) is integrally connected to the other end of the sleeve (1), and the center lines of the two coincide with each other; the inner wall of the operating sleeve (24) is provided with two spiral guide grooves parallel to each other; one end of the driving rod (23) extends into the operating sleeve (24), and guide blocks (231) embedded in the two guide grooves are respectively vertically provided on opposite sides thereof; and a thrust rod (232) is vertically provided on the other end of the driving rod (23).

8. A BOG booster compressor exhaust valve seat extractor according to any one of claims 1 to 3, characterized in that: The operating assembly (2) comprises a connector (25) and an electric wrench (26); a hexagon socket (112) is provided in the middle of the other end of the sleeve (1); one end of the connector (25) is provided with a hexagonal plug, and the other end is provided with a pin for plugging into the electric wrench (26).

9. A BOG booster compressor exhaust valve seat extractor according to any one of claims 1 to 3, characterized in that: The positioning bayonet (111) is provided with four and is distributed at equal intervals along the circumferential direction.

10. A BOG booster compressor exhaust valve seat extractor according to any one of claims 1 to 3, characterized in that: The sleeve (1) is a steel sleeve.

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