High-pressure plunger pump packing box mounting assembly

Abstract

The utility model relates to the field of oil field high-pressure fluid, in particular to a high-pressure plunger pump packing box installation assembly. The problems that existing equipment is difficult to disassemble and long in maintenance time are solved. The equipment comprises a flange plate sleeved with a packing box, wherein the packing box is inserted into the side wall of a box body; the packing box comprises a main body and a positioning sleeve arranged between the main body and the box body; the inner wall of the flange plate is clamped with the outer wall of the main body; the flange plate is connected with the box body through bolts. The main body and the box body are connected in a positioning mode through the positioning sleeve, the flange plate and the main body are connected in a clamped mode, and then the flange plate and the box body are connected in a fastened mode through bolts, so that locking of the main body can be achieved. When the packing box is replaced, the whole packing box can be taken out only by detaching the bolt for connecting the flange plate and the box body to loosen the connection between the flange plate and the main body, and the quick detaching structure is simple to operate and easy to install, effectively shortens the maintenance time and improves the production efficiency.

Description

Technical Field

[0001] The utility model relates to the field of high-pressure fluid in oil fields, in particular to a packing box installation component for a high-pressure plunger pump. Background Art

[0002] High-pressure plunger pumps are often used in oilfield recovery operations. The plunger and packing are wearing parts that need to be replaced frequently and the main body needs to be disassembled and assembled frequently. Figure 1 As shown, the existing packing box 02 has a certain interval with the box body 03 in the installed state, and the packing box 02 is positioned and fixed by the protrusion of the packing box flange 01 being inserted into the interval, and then the packing box flange 01 and the box body 03 are connected together with bolts 04. This method requires the packing box flange 01 to be completely removed before the packing box 02 can be taken out during disassembly and assembly, but due to the large size of the equipment, it is more difficult to disassemble, and the protrusion of the packing box flange 02 is relatively weak and easily damaged during disassembly; the maintenance time is increased, affecting the production efficiency on site. Utility Model Content

[0003] The utility model aims to provide a high-pressure plunger pump packing box installation component to solve the problems of difficult disassembly and long maintenance time of existing equipment.

[0004] The purpose of the utility model can be achieved by the following scheme:

[0005] A high-pressure plunger pump packing box installation assembly includes a flange plate sleeved with the packing box, the packing box is plugged into the side wall of a box body; the packing box includes a main body and a positioning sleeve arranged between the main body and the box body; the inner wall of the flange plate and the outer wall of the main body are mutually clamped; the flange plate and the box body are connected by bolts.

[0006] Furthermore, the inner wall of the flange is provided with evenly distributed protrusions.

[0007] Furthermore, the outer wall of the main body is provided with evenly distributed grooves.

[0008] Furthermore, a boss is provided at the contact end between the main body and the positioning sleeve; and the positioning sleeve is provided with a concave surface matching with the boss.

[0009] Furthermore, the packing box also includes a pressure cap; the pressure cap is sleeved on a side of the main body away from the box body.

[0010] Furthermore, a bushing is arranged between the pressing cap and the main body.

[0011] Furthermore, a guide ring is provided on a side of the inner wall of the main body away from the box body.

[0012] Furthermore, a plunger is arranged in the packing box; the plunger is plugged with the pressure cap, the bushing, the guide ring, the main body and the positioning sleeve in sequence.

[0013] Furthermore, a packing is arranged between the bushing and the guide ring.

[0014] Furthermore, sealing rings are provided at the connection between the main body and the plunger close to one side of the box body, and between the positioning sleeve and the box body.

[0015] The beneficial effects of the utility model are analyzed as follows:

[0016] The main body of the present invention is positioned and connected to the box body by a positioning sleeve, and the flange and the main body are mutually clamped and then fastened to the box body by bolts, so that the main body can be locked.

[0017] When replacing, you only need to remove the bolts connecting the flange and the box body to loosen the connection between the flange and the main body, and then take out the packing box as a whole. The quick-release structure is simple to operate and easy to install, which effectively reduces the maintenance time and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the related technologies, the drawings required for use in the specific implementation methods or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a structural schematic diagram of the prior art;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model;

[0021] Figure 3 A top view schematic diagram of the subject;

[0022] Figure 4 A top view of the flange.

[0023] icon:

[0024] 100- cabinet;

[0025] 200-packing box; 210-main body; 230-positioning sleeve; 240-pressure cap; 250-bushing; 260-guide ring; 270-plunger; 280-packing;

[0026] 300-Flange. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. 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] Embodiment 1

[0031] The existing packing box 02 has a certain gap with the box body 03 when installed. The packing box 02 is positioned and fixed by inserting the protrusion of the packing box flange 01 into the gap, and then the packing box flange 01 and the box body 03 are connected together with bolts 04. This method requires the packing box flange 01 to be completely removed before the packing box 02 can be taken out during disassembly and assembly. However, due to the large size of the equipment, it is difficult to disassemble, and the protrusion of the packing box flange 02 is relatively weak and easily damaged during disassembly, which increases the maintenance time and affects the production efficiency.

[0032] In view of this, the present invention provides a high-pressure plunger pump packing box installation assembly, including a flange 300 that is sleeved with a packing box 200, and the packing box 200 is inserted into the side wall of a casing 100; the packing box 200 includes a main body 210 and a positioning sleeve 230 arranged between the main body 210 and the casing 100; the inner wall of the flange 220 and the outer wall of the main body 210 are clamped with the boss through a groove 211; the flange 220 and the casing 100 are connected by bolts.

[0033] The main body 210 of the present solution is positioned and connected to the box body 100 by a positioning sleeve 230. The flange 220 and the main body 210 are mutually clamped and then the flange 220 and the box body 100 are fastened and connected by bolts, so that the main body 210 can be locked.

[0034] During replacement, it is only necessary to remove the bolts connecting the flange 220 and the box body 100 to loosen the connection between the flange 220 and the main body 210, and then the packing box can be taken out as a whole. The quick-release structure is easy to operate and install, which effectively reduces the maintenance time and improves production efficiency.

[0035] Combine the following Figures 1 to 3 Detailed description of this plan:

[0036] like Figure 2 As shown, the present solution provides a high-pressure plunger pump packing box installation assembly, including a packing box 200 inserted into the side wall of a casing 100 and a flange 300 sleeved with the packing box 200; the packing box 200 includes a main body 210 and a positioning sleeve 230 arranged between the main body 210 and the casing 100; the inner wall of the flange 220 and the outer wall of the main body 210 are clamped with the boss through a groove 211; the flange 220 and the casing 100 are connected by bolts.

[0037] Specifically, Figures 2 to 3 As shown, the positioning sleeve 230 is pre-installed on the side wall of the box body 100, and the positioning sleeve 230 and the box body 100 are clearance-matched. A concave surface is provided on the side away from the box body 100, and a boss is provided at the position where the main body 210 contacts the positioning sleeve 230. The concave surface and the boss cooperate with each other to achieve the installation and positioning of the main body 210; at the same time, four evenly distributed grooves are provided on the side of the main body 210 close to the box body 100, and four evenly distributed protrusions are provided on the inner wall of the flange 300. The grooves and protrusions can cooperate with each other to achieve the fastening of the main body 210. Preferably, the inner wall of the flange 300 and the outer wall of the main body 210 are both set as the center of a circle with similar size. The flange 300 uses a positive tolerance and the main body 210 uses a negative tolerance, which not only facilitates the installation of workers but also improves the installation accuracy.

[0038] like Figure 1 As shown, the packing box 200 also includes a pressure cap 240, and a plunger 270 is arranged in the packing box; the pressure cap 240 is sleeved on the side of the main body 210 away from the box body 100; a bushing 250 is arranged between the pressure cap 240 and the main body 210; a guide ring 260 is also arranged on the side of the inner wall of the main body 210 away from the box body 100; the plunger 270 is plugged into the pressure cap 240, the bushing 250, the guide ring 260, the main body 210 and the positioning sleeve 230 in sequence; and a packing 280 is arranged between the bushing 250 and the guide ring 260.

[0039] Specifically, since the inner diameter of the main body 210 is larger than the outer diameter of the plunger 270, the plunger 270 is easily eccentric after being installed, resulting in a decrease in the straightness between the plunger 270 and the housing 100. Therefore, a guide ring 260 and a bushing 250 are respectively provided inside the main body 210 and at the end away from the housing 100 to achieve the straightening of the plunger 270. Therefore, the installation error between the guide ring 260, the bushing 250 and the plunger 270 is less than ±0.1.

[0040] The specific steps of this program are:

[0041] The first step is to remove the fastening screws on the flange 300 to loosen the connection between the main body 210 and the flange 300;

[0042] The second step is to remove the main body 210 and pull out the plunger 270;

[0043] The third step is to rotate the pressure cap 240 to remove the bushing 250 and the packing 280 and the guide ring 260 inside;

[0044] Step 4: Replace the corresponding spare parts and install them.

[0045] In order to improve the overall sealing effect of the equipment and avoid liquid overflow, it is more preferred that sealing rings are provided at the connection between the main body 210 and the plunger 270 close to the side of the box body 100, as well as between the positioning sleeve 230 and the box body 100. The outer dimensions of the sealing rings can be adjusted accordingly according to the actual use environment, and the number of sealing rings can be appropriately increased according to the sealing effect.

[0046] This solution has at least the following beneficial effects:

[0047] A quick-release structure is provided between the main body 210 and the flange 300, which facilitates manual disassembly, reduces work difficulty, and improves production efficiency. A bushing 250 and a guide ring 260 are provided between the plunger 270 and the main body 210, and the main body 210 and the housing 100 are connected by a positioning sleeve 230, which improves the straightness between the plunger 270 and the housing 100, thereby ensuring the overall accuracy of the equipment.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of each embodiment of the utility model.

Claims

1. A high-pressure plunger pump packing box installation assembly, characterized in that: It comprises a flange (300) sleeved with the packing box (200), and the packing box (200) is plugged into the side wall of the box body (100); The packing box (200) comprises a main body (210) and a positioning sleeve (230) arranged between the main body (210) and the box body (100); The inner wall of the flange (300) and the outer wall of the main body (210) are mutually clamped; The flange (300) is connected to the box body (100) via bolts.

2. The high-pressure plunger pump packing box installation assembly according to claim 1, characterized in that: The inner wall of the flange (300) is provided with four evenly distributed protrusions.

3. The high-pressure plunger pump packing box installation assembly according to claim 2, characterized in that: The outer wall of the main body (210) is provided with four evenly distributed grooves.

4. The high-pressure plunger pump packing box installation assembly according to claim 3, characterized in that: The contact ends of the main body (210) and the positioning sleeve (230) are provided with bosses; The positioning sleeve (230) is provided with a concave surface matching the boss.

5. The high-pressure plunger pump packing box installation assembly according to claim 4, characterized in that: The packing box (200) further comprises a pressure cap (240); The pressing cap (240) is sleeved on a side of the main body (210) away from the box body (100).

6. The high-pressure plunger pump packing box installation assembly according to claim 5, characterized in that: A bushing (250) is provided between the pressing cap (240) and the main body (210).

7. The high-pressure plunger pump packing box installation assembly according to claim 6, characterized in that: A guide ring (260) is also provided on the inner wall of the main body (210) at a side away from the box body (100).

8. The high-pressure plunger pump packing box installation assembly according to claim 7, characterized in that: A plunger (270) is provided in the packing box (200); The plunger (270) is plugged into the pressure cap (240), the bushing (250), the guide ring (260), the main body (210) and the positioning sleeve (230) in sequence.

9. The high-pressure plunger pump packing box installation assembly according to claim 8, characterized in that: A packing (280) is provided between the bushing (250) and the guide ring (260).

10. The high-pressure plunger pump packing box installation assembly according to claim 9, characterized in that: Sealing rings are provided at the connection point between the main body (210) and the plunger (270) close to the side of the box body (100), as well as between the positioning sleeve (230) and the box body (100).

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