Corrosion coupon support device and fluid conveying system

Abstract

The utility model relates to the field of gas field corrosion protection, in particular to a corrosion coupon support device and a fluid conveying system. The corrosion coupon support device comprises a screwed plug and a coupon support, the screwed plug is a preformed hole screwed plug of a conveying system, a support connecting structure used for being connected with the coupon support is arranged on the preformed hole screwed plug, and the coupon support is connected to the screwed plug by being matched with the support connecting structure. According to the corrosion coupon support device, the existing corrosion coupon support device is improved. Specifically, the corrosion coupon support device provides a reliable scheme for installation of the corrosion coupon, an existing open hole and an existing screwed plug are used as fixing bases, the installation construction workload of the corrosion coupon is reduced, and the safety risk of fire operation in flammable and explosive places is reduced.

Description

Technical Field

[0001] The utility model relates to the field of gas field corrosion protection, and specifically to a corrosion hanging plate support device and a fluid delivery system. Background Technology

[0002] Corrosion coupons are widely used in corrosion monitoring during oil production. By analyzing the state of the corrosion coupons, the corrosion trend and possible risks can be reflected, and corresponding countermeasures can be taken, which is of great significance in production practice.

[0003] In actual applications, the corrosion coupon must be pre-installed on the corrosion coupon shelf, and then the corrosion coupon shelf is inserted from the hole into the interior by drilling holes at the detection position, so that the corrosion coupon is sealed in the liquid flow (air flow). However, the depth of the corrosion coupon is relatively fixed and often cannot meet the detection needs. At the same time, drilling holes at the detection position will increase the workload, and there are safety risks in hot work in flammable and explosive places. When fixing the corrosion coupon in the wellbore to monitor the corrosion situation, there will also be the problem of complicated corrosion coupon removal and placement process, which is easy to cause underground accidents.

[0004] The Chinese utility model patent with the authorization announcement number CN213297914U and the authorization announcement date May 28, 2021 discloses a wellhead corrosion hanging piece device that can be quickly installed and disassembled, which includes a screw plug, a connecting rod and a hanging corrosion hanging piece fixing plate. The screw plug, the connecting rod, and the hanging corrosion hanging piece fixing plate are connected by threads from top to bottom. The device can be quickly installed and disassembled safely and easily while meeting the diverse metal samples for hanging tests. It has the characteristics of simple structure and simple loading and unloading. However, it does not solve the problem of opening holes at the detection position, and there are still safety hazards in flammable and explosive places. Contents of utility model

[0005] Aiming at the above-mentioned deficiencies of the prior art, the utility model provides a corrosion hanging plate bracket device to solve the problems of inconvenient installation and poor safety caused by the need to open a hole at the detection position.

[0006] At the same time, the purpose of the utility model is also to provide a fluid delivery system to solve the problems of complicated operation and poor safety caused by the installation of corrosion hanging pieces in the existing fluid delivery system.

[0007] The corrosion hanging piece bracket device of the utility model adopts the following technical solutions:

[0008] A corrosion hanging plate support device includes a plug and a hanging plate support, the plug is a reserved hole plug for a conveying system, a support connection structure for connecting the hanging plate support is arranged on the reserved hole plug, and the hanging plate support is connected to the plug by cooperating with the support connection structure.

[0009] Advantageous effects: The present utility model improves the existing corrosion coupon bracket device. Specifically, the corrosion coupon bracket device of the present utility model provides a reliable solution for the installation of corrosion coupons. By using the existing openings and pipe plugs as fixed seats, the installation workload of corrosion coupons is reduced, and the safety risk of hot work in flammable and explosive places is lowered.

[0010] Furthermore, the coupon bracket includes two or more connective rods that are detachably connected in sequence and a coupon shelving rack. The coupon shelving rack is provided with a shelving rack connection structure. One end of each connective rod forms a first end that matches the bracket connection structure, and the other end forms a second end that matches the shelving rack connection structure.

[0011] Furthermore, one of the first end and the second end is provided with an external thread, and the other is provided with an internal thread that matches the external thread.

[0012] Furthermore, the connective rod is a hollow rod. The second end is provided with an internal thread, and the inner hole of the hollow rod forms a coupon shelving rack installation hole. A fluid passage hole is provided on the hollow rod.

[0013] Furthermore, the fluid passage hole is a long hole extending along the axial direction of the connective rod, and the fluid passage hole corresponds to the coupon shelving position provided on the coupon shelving rack.

[0014] The fluid delivery system of the present utility model adopts the following technical solution:

[0015] A fluid delivery system is provided with a coupon corrosion device therein, and a pipe plug for a reserved hole is provided on the delivery system. The coupon corrosion device includes a coupon bracket. The pipe plug for the reserved hole is provided with a bracket connection structure for connecting the coupon bracket, and the coupon bracket is connected to the pipe plug for the reserved hole by cooperating with the bracket connection structure.

[0016] Advantageous effects: The fluid delivery system of the present utility model is an improved invention. The present utility model improves the coupon corrosion device of the existing fluid delivery system. Specifically, the coupon bracket provides a reliable solution for the installation of corrosion coupons. By using the existing openings and pipe plugs as fixed seats, the installation workload of corrosion coupons is reduced, and the safety risk of hot work in flammable and explosive places is lowered.

[0017] Furthermore, the coupon bracket includes two or more connective rods that are detachably connected in sequence and a coupon shelving rack. The coupon shelving rack is provided with a shelving rack connection structure. One end of each connective rod forms a first end that matches the bracket connection structure, and the other end forms a second end that matches the shelving rack connection structure.

[0018] Furthermore, one of the first end and the second end is provided with an external thread, and the other is provided with an internal thread that matches the external thread.

[0019] Further, the connecting rod is a hollow rod, the second end is provided with an internal thread, the inner hole of the hollow rod forms a mounting hole for the hanging piece rest, and a fluid through hole is provided on the hollow rod.

[0020] Further, the fluid through hole is a long hole extending along the axial direction of the connecting rod, and the fluid through hole corresponds to the hanging piece rest position provided on the hanging piece rest. Description of the Drawings

[0021] Figure 1 It is an assembly schematic diagram of an embodiment of the corrosion hanging piece support device of the present utility model;

[0022] Figure 2 is Figure 1 a schematic structural diagram of the plug in

[0023] Figure 3 is Figure 1 a schematic structural diagram of the connecting rod in

[0024] Figure 4 is Figure 1 a schematic structural diagram of the hanging piece rest in

[0025] Reference numerals in the figure: 1, plug; 11, internal thread of the plug; 2, connecting rod; 21, external thread of the connecting rod; 22, internal thread of the connecting rod; 23, long hole; 3, corrosion hanging piece; 4, hanging piece rest; 41, external thread of the hanging piece rest; 42, wrench mating part. Detailed Embodiment

[0026] The features and performance of the present utility model will be further described in detail below in conjunction with the embodiments.

[0027] The detailed embodiment of the corrosion hanging piece support device of the present utility model:

[0028] In the prior art, a wellhead corrosion hanging piece device with quick installation and disassembly is disclosed, which connects a plug, a connecting rod, and a hanging corrosion hanging piece fixing plate through threads. The structure is simple and the loading and unloading are simple, but the detection position still needs to be drilled, which poses a safety hazard in flammable and explosive places. The present utility model proposes an improved solution for the deficiencies of the prior art. The core idea of this solution is to use the existing opening and plug of the conveying system as a fixed seat to reduce the installation workload and safety hazard.

[0029] As Figure 1 shown, the corrosion hanging piece support device of the present utility model includes a plug 1 and a hanging piece support, and the hanging piece support is composed of a connecting rod 2 and a hanging piece rest 4. The plug 1, the connecting rod 2, and the hanging piece rest 4 are sequentially connected by threads to form a corrosion hanging piece support device.

[0030] The plug 1 is a plug for the reserved hole of the conveying system, and a bracket connection structure for connecting the hanging piece bracket is provided thereon. In this embodiment, the bracket connection structure is the internal thread 11 of the plug. As Figure 2 shown, the internal thread 11 of the plug is used to connect the hanging piece bracket and plays a connecting role. In order to be able to play a connecting role, in some other embodiments, the bracket connection structure of this plug can also be connected to it by means of welding, insertion, etc. Specifically, it can be an external thread joint, a connecting plate, etc., and is not limited to the thread. Other structures that play a connecting role should also be within the scope of protection of the claims.

[0031] The hanging piece bracket includes a connecting rod 2 and a hanging piece shelf 4. The hanging piece shelf 4 is provided with a shelf connection structure. The first end of the connecting rod 2 forms a first end that matches the bracket connection structure, and the other end forms a second end that matches the shelf connection structure. In this embodiment, the first end is the external thread 21 of the connecting rod, and the second end is the internal thread 22 of the connecting rod. One end of the connecting rod 2 is connected to the plug 1, and one end is connected to another connecting rod or the hanging piece shelf 4. One end of the connecting rod 2 is provided with an external thread 21, and the other end is provided with an internal thread 22 that matches the external thread. The length of the entire device can be extended or shortened by increasing or decreasing the number of connecting rods. The connecting rod 2 has a fluid passage hole for the liquid flow to pass through. In this embodiment, the connecting rod 2 is provided with a long hole 23 extending along the axial direction of the connecting rod as the fluid passage hole. The long hole 23 corresponds to the hanging piece placement position provided on the hanging piece shelf 4 for the liquid to flow in. The liquid passes through the long hole 23 and flows into the connecting rod, and the corrosion situation can be reflected by the state of the corrosion hanging piece inside. As Figure 3 shown, in this embodiment, the inner hole of the connecting rod 2 forms a hanging piece shelf mounting hole for connecting the hanging piece shelf 4. In this embodiment, the mounting hole is a threaded hole, and this mounting hole plays a connecting role. In this embodiment, the connecting rod 2 is a hollow rod, but it can also be a solid rod. The solid rod can be drilled with threads, and the hanging piece shelf is installed on the solid rod through a fixing bolt. This is another embodiment. In this case, the hanging piece shelf can adopt other structures. For example, when in use, it is not inserted into the connecting rod but hangs at the lower end of the connecting rod. Here, the shape of the fluid passage hole of the connecting rod 2 is a strip-shaped hole, but it can also be other shapes such as a circular shape, and there is no fixed limit on it.

[0032] The hanging piece shelf is provided with a shelf connection structure for connecting the hanging piece shelf and the connecting rod. In this embodiment, the shelf connection structure is a threaded connection. As Figure 4 shown, the hanging piece shelf 4 is a plate-shaped main body with grooves on the upper and lower surfaces for installing corrosion hanging pieces through light holes. The external thread 41 of the hanging piece shelf is provided in the middle and lower part and can be connected to the connecting rod 2. The wrench cooperation part 42 is provided at the bottom end for tightening or loosening the hanging piece shelf. The shape of the wrench cooperation part can also be made into a structure such as an internal hexagonal hole and is screwed in with a screwing tool for cooperation.

[0033] The usage method of the corrosion coupon bracket device of the present utility model is as follows: During installation, first connect the connecting rod 2 with the external thread 21 and the internal thread 22 to each other. The corrosion coupon 3 is screwed tightly onto the coupon shelving rack 4. The coupon shelving rack 4 is connected to one end of the connecting rod 2 through threads, and the other end of the connecting rod 2 is connected to the plug 1 through threads. Install the plug on the pipeline of the conveying system to complete the installation.

[0034] The specific implementation manner of the fluid conveying system of the present utility model:

[0035] The fluid conveying system of the present utility model includes a plug 1 for the reserved hole of the conveying pipeline and a coupon corrosion device. The coupon corrosion device is composed of a connecting rod 2, a coupon shelving rack 4, and a corrosion coupon 3.

[0036] The fluid conveying system fixes the corrosion coupon 3 thereon by using the corrosion coupon bracket device. The structure is the same as that of the corrosion coupon bracket device and will not be elaborated here.

Claims

1. A corrosion coupon support device, comprising a plug and a coupon support, characterized in that: The screw plug is a screw plug for a reserved hole of a conveying system, and a bracket connecting structure for connecting a hanging plate bracket is arranged on the screw plug for the reserved hole, and the hanging plate bracket is connected to the screw plug by cooperating with the bracket connecting structure.

2. The corrosion coupon support device according to claim 1, characterized in that: The hanging plate bracket includes more than two connecting rods that are detachably connected in sequence and a hanging plate shelf rack, and the hanging plate shelf rack is provided with a shelf rack connecting structure, one end of each connecting rod forms a first end matching the bracket connecting structure, and the other end forms a second end matching the shelf rack connecting structure.

3. The corrosion coupon support device according to claim 2, characterized in that: One of the first end and the second end is provided with an external thread, and the other end is provided with an internal thread matching the external thread.

4. The corrosion coupon support device according to claim 3, characterized in that: The connecting rod is a hollow rod, the second end is provided with an internal thread, the inner hole of the hollow rod forms a mounting hole for the hanging sheet shelf, and a fluid passing hole is provided on the hollow rod.

5. The corrosion coupon support device according to claim 4, characterized in that: The fluid passing hole is a long hole extending along the axial direction of the connecting rod, and the fluid passing hole corresponds to the hanging sheet placement position arranged on the hanging sheet placement frame.

6. A fluid delivery system, in which a hanging sheet corrosion device is arranged, a reserved hole plug is arranged on the delivery system, and the hanging sheet corrosion device includes a hanging sheet bracket, characterized in that: The reserved hole plug is provided with a bracket connecting structure for connecting the hanging plate bracket, and the hanging plate bracket is connected to the reserved hole plug by cooperating with the bracket connecting structure.

7. The fluid delivery system according to claim 6, characterized in that: The hanging plate bracket includes more than two connecting rods that are detachably connected in sequence and a hanging plate shelf rack, and the hanging plate shelf rack is provided with a shelf rack connecting structure, one end of each connecting rod forms a first end matching the bracket connecting structure, and the other end forms a second end matching the shelf rack connecting structure.

8. The fluid delivery system according to claim 7, characterized in that: One of the first end and the second end is provided with an external thread, and the other end is provided with an internal thread matching the external thread.

9. The fluid delivery system according to claim 8, characterized in that: The connecting rod is a hollow rod, the second end is provided with an internal thread, the inner hole of the hollow rod forms a mounting hole for the hanging sheet shelf, and a fluid passing hole is provided on the hollow rod.

10. The fluid delivery system according to claim 9, characterized in that: The fluid passing hole is a long hole extending along the axial direction of the connecting rod, and the fluid passing hole corresponds to the hanging sheet placement position arranged on the hanging sheet placement frame.

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