On-site calibration pressure transmitter device

Abstract

The utility model relates to a field calibration pressure transmitter device, and relates to the field of oil field oil and gas production technology, the field calibration pressure transmitter device comprises a pressure regulating pump, one side of the pressure regulating pump is connected with a control valve, a pressure transmitter is arranged on the control valve and is communicated with the control valve, one side of the pressure regulating pump is also provided with a pressure gauge, and the pressure gauge is connected with the control valve. And the pressure gauge is used for detecting the internal pressure of the pressure regulating pump. According to the invention, an operator does not need to dismantle a data transmission line of the pressure transmitter, take down the pressure transmitter from the control valve and send the pressure transmitter to a verification department for verification, the labor intensity of workers is reduced, the transportation cost is saved, and the instrument damage caused in the transportation process is avoided.

Description

Technical Field

[0001] The present application relates to the field of oil and gas production technology in oil fields, and in particular to an on-site calibration device for a pressure transmitter. Background Art

[0002] With the continuous improvement of automation level, the recording of pressure parameters at various oil field production sites has basically realized remote collection of pressure transmitters, which reduces the labor intensity of employees and avoids human errors in data collection. In order to ensure the accuracy of the data recorded by the pressure transmitter, the pressure transmitter needs to be calibrated every year.

[0003] During calibration, operators need to disconnect the data transmission line and remove the pressure transmitter from the control valve. The transmitter must then be sent to the calibration department for calibration. After calibration, the calibrated transmitter must be retrieved and installed on-site. The complex process of disassembly, inspection, retrieval, and installation is not only time-consuming and labor-intensive, but also frequently damages the pressure transmitter during disassembly, assembly, and transportation.

[0004] With respect to the above-mentioned related technologies, the inventor believes that there are problems in solving the pressure transmitter calibration process, such as high labor intensity, high transportation costs, and high instrument damage rate. Utility Model Content

[0005] In order to calibrate the pressure transmitter on site, the present application provides an on-site calibration device for the pressure transmitter.

[0006] The present application provides an on-site calibration device for a pressure transmitter using the following technical solutions:

[0007] A field calibration pressure transmitter device includes a pressure regulating pump, one side of the pressure regulating pump is connected to a control valve, a pressure transmitter is arranged on the control valve and is relatively connected, and one side of the pressure regulating pump is also provided with a pressure gauge, and the pressure gauge detects the internal pressure of the pressure regulating pump.

[0008] Optionally, a pressure relief device is provided between the pressure regulating pump and the control valve, and the pressure relief device releases the pressure inside the pressure regulating pump.

[0009] Optionally, a first connecting piece is provided between the pressure regulating pump and the control valve, and the first connecting piece is a multi-way connecting piece.

[0010] Optionally, the first connecting member and the control valve are relatively connected via a connecting pipe, one end of the connecting pipe is fixedly connected and relatively connected to the first connecting member via the pressure output port joint, and the other end of the connecting pipe is fixedly connected and relatively connected to the control valve via the pressure output port joint.

[0011] Optionally, the connecting pipe is a hose.

[0012] Optionally, the height of the pressure relief device is higher than the height of the pressure regulating pump.

[0013] Optionally, the pressure regulating pump is a hand-cranked booster pump.

[0014] Optionally, one end of the pressure regulating pump is rotatably connected to a pre-pressure pump handwheel, and the pre-pressure pump handwheel adjusts the pressure inside the pressure regulating pump.

[0015] Optionally, the maximum pressure value of the pressure regulating pump is 60 MPa.

[0016] Optionally, a vent pipe is provided on one side of the control valve, and the interior of the vent pipe is sealed and connected with a vent plug.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] There is no need for operating staff to dismantle the data transmission line of the pressure transmitter, remove the pressure transmitter from the control valve, and send it to the calibration department for calibration, which reduces the labor intensity of workers, saves transportation costs, and avoids damage to the instrument during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of an on-site calibration pressure transmitter device in an embodiment of the present application.

[0020] Explanation of the accompanying symbols: 1. Pressure regulating pump; 11. First connecting pipe; 2. Pre-pressure pump handwheel; 3. Pressure output port connector; 31. First connecting piece; 311. Fourth connecting pipe; 4. Pressure relief device; 41. Second connecting piece; 411. Third connecting pipe; 5. Pressure gauge; 51. Third connecting piece; 511. Second connecting pipe; 6. Control valve; 61. Vent pipe; 7. Pressure transmitter; 8. Connecting pipe; 9. Bottom plate; 10. Base. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0023] The following is combined with Figure 1 This application is described in further detail.

[0024] The embodiment of the present application discloses a field calibration pressure transmitter device. Figure 1 A field calibration pressure transmitter device includes a base plate 9, a pressure regulating pump 1 is horizontally arranged on the base plate 9, a base 10 is arranged below the pressure regulating pump 1, the bottom end of the base 10 is fixedly connected to the base plate 9, and the top end of the base 10 is fixedly connected to the pressure regulating pump 1, so that the pressure regulating pump 1 is horizontally arranged on the base plate 9.

[0025] The pressure-regulating pump 1 can be a hand-cranked booster pump. One end of the pressure-regulating pump 1 is rotatably connected to a pre-pressure pump handwheel 2. By manually cranking the pre-pressure pump handwheel 2, the enclosed space within the pressure-regulating pump 1 can be pressurized with the aid of liquid, with a maximum pressure of 60 MPa. The pre-pressure pump handwheel 2 can be circular or other shaped, and manually cranking the pre-pressure pump 1 increases pressure.

[0026] A second connecting member 41 is provided on one side of the pressure-regulating pump 1. The second connecting member 41 is fixedly connected to the bottom plate 9. The second connecting member 41 and the pressure-regulating pump 1 are in relative communication via a first connecting pipe 11, allowing the pressure solution inside the pressure-regulating pump 1 to enter the interior of the second connecting member 41 through the first connecting pipe 11. A pressure relief device 4 is fixedly connected to the top end of the second connecting member 41, and the interior of the pressure relief device 4 is in relative communication with the second connecting member 41.

[0027] The pressure relief device 4 is a hollow box of a circular or other shape, which can be used to vent the pipeline and relieve pressure by opening and closing valves, rotating threads, etc. The pressure relief device 4 is positioned higher than the pressure regulating pump 1 to ensure that the liquid in the pressure relief device 4 is always full of the pressure regulating pump 1.

[0028] A third connector 51 is provided on one side of the pressure relief device. The third connector 51 is fixedly connected to the base plate 9. The second connector 41 and the third connector 51 are relatively connected via a second connecting pipe 511. A pressure gauge 5 is provided on the third connector 51. The third connector 51 is fixedly connected to and relatively connected to the pressure gauge 5. The interior of the pressure gauge 5 is relatively connected to the pressure regulating pump 1. The pressure inside the pressure regulating pump 1 is the same as the pressure inside the pressure gauge 5. The pressure gauge 5 can detect the pressure value inside the pressure regulating pump 1. The pressure gauge 5 is a new factory-calibrated pressure gauge 5 with the same specifications as the calibrated pressure transmitter 7.

[0029] The first connecting member 31 is provided on the other side of the second connecting member 41 . The second connecting member 41 and the first connecting member 31 are relatively connected through the third connecting pipe 411 . The first connecting member 31 is relatively connected to the pressure regulating pump 1 through the fourth connecting pipe 311 .

[0030] A connecting pipe 8 is provided on one side of the first connecting piece 31, and both ends of the connecting pipe 8 are connected to the pressure output port joints 3. The pressure output port joint 3 at one end of the connecting pipe 8 is connected to the first connecting piece, and the pressure output port joint 3 at the other end of the connecting pipe 8 is fixedly connected to the control valve 6.

[0031] A pressure transmitter 7 is detachably connected to the control valve 6, and the pressure transmitter 7 is the pressure transmitter 7 being calibrated. The control valve 6 and the pressure transmitter 7 are in relative communication with each other. The control valve 6 is a stainless steel high-pressure control valve 6. A vent pipe 61 is provided on the other side of the control valve 6. The interior of the vent pipe 61 is in relative communication with the interior of the control valve 6. The interior of the control valve 6 is vented through the vent pipe 61. A vent plug is provided on one side of the interior of the vent pipe 61. The vent plug interface specifications are consistent with the connector specifications on one side of the connecting pipe 8. When the pressure regulating pump 1 is pressurized, the vent plug can seal the vent pipe 61 to prevent pressure from leaking.

[0032] The size of the pressure output port connector 3 is consistent with the interface specifications of the pressure gauge 5 and the pressure transmitter 7 being calibrated. The pressure output port connector 3 can also be designed into a three-way or four-way shape, so that the purpose of calibrating 2-3 pressure transmitters 7 at the same time can be achieved.

[0033] The pressure output port connector 3 is a metal connector. The size of the pressure output port connector 3 on one side is consistent with the specifications of the pressure output port connector 3 on the other side. The specifications of the pressure output port connector 3 and the vent plug interface of the control valve 6 are consistent. The connecting pipe 8 is a bendable and deformable high-pressure hose.

[0034] During operation, the pressure inside the pressure regulating pump 1 is pressurized so that the pressure enters the second connecting piece 41 through the first connecting pipe 11 and enters the pressure relief device 4. The pressure enters the third connecting piece 51 through the second connecting piece 41 and the second connecting pipe 511. The pressure of the third connecting piece 51 is connected to the pressure gauge 5. The pressure inside the pressure regulating pump 1 enters the first connecting piece 31 through the fourth connecting pipe 311. The first connecting piece 31 enters the connecting pipe 8 through the pressure output port connector 3. The pressure inside the connecting pipe 8 enters the pressure transmitter 7 through the control valve 6, so that the internal pressure is the same.

[0035] Compare the pressure values displayed on the pressure gauge 5 and the pressure transmitter 7 display screen at different pressures, calculate the difference between the pressure values displayed on the pressure gauge 5 and the pressure transmitter 7 display screen, and determine whether the pressure value displayed on the pressure transmitter 7 display screen exceeds the allowable error value.

[0036] If the pressure value displayed on the display screen of the pressure transmitter 7 does not exceed the allowable error value, it means that the pressure value displayed by the pressure transmitter 7 is qualified and no adjustment is required.

[0037] If the pressure value displayed by the pressure transmitter 7 exceeds the allowable error value, it means that the pressure value displayed by the pressure transmitter 7 is unqualified. The pressure value displayed by the pressure transmitter 7 should be adjusted to be consistent with the pressure value displayed by the pressure gauge 5.

[0038] In this application, the term "plurality" refers to at least two or more than two, unless otherwise specified. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0039] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. A device for on-site calibration of a pressure transmitter, characterized by: The invention comprises a pressure regulating pump (1), one side of the pressure regulating pump (1) is connected to a control valve (6), a pressure transmitter (7) is arranged on the control valve (6) and is relatively connected, and a pressure gauge (5) is also arranged on one side of the pressure regulating pump (1), and the pressure gauge (5) detects the internal pressure of the pressure regulating pump (1).

2. The on-site calibration device for a pressure transmitter according to claim 1, characterized in that: A pressure relief device (4) is provided between the pressure regulating pump (1) and the control valve (6), and the pressure relief device (4) releases the pressure inside the pressure regulating pump (1).

3. The on-site calibration device for a pressure transmitter according to claim 1, characterized in that: A first connecting piece (31) is provided between the pressure regulating pump (1) and the control valve (6), and the first connecting piece (31) is a multi-way connecting piece.

4. The on-site calibration device for a pressure transmitter according to claim 3, characterized in that: The first connecting member (31) and the control valve (6) are relatively connected via a connecting pipe (8); one end of the connecting pipe (8) is fixedly connected to the first connecting member (31) via a pressure output port connector (3) and is relatively connected; the other end of the connecting pipe (8) is fixedly connected to the control valve (6) via a pressure output port connector (3) and is relatively connected.

5. The on-site calibration device for a pressure transmitter according to claim 4, characterized in that: The connecting pipe (8) is a hose.

6. The on-site calibration device for a pressure transmitter according to claim 2, characterized in that: The height of the pressure relief device (4) is higher than the height of the pressure regulating pump (1).

7. The on-site calibration device for a pressure transmitter according to claim 1, characterized in that: The pressure regulating pump (1) is a hand-operated booster pump.

8. The on-site calibration device for a pressure transmitter according to claim 7, characterized in that: One end of the pressure regulating pump (1) is rotatably connected to a pre-pressure pump handwheel (2), and the pre-pressure pump handwheel (2) regulates the pressure inside the pressure regulating pump (1).

9. The on-site calibration device for a pressure transmitter according to claim 7, characterized in that: The maximum pressure value of the pressure regulating pump (1) is 60 MPa.

10. The on-site calibration device for a pressure transmitter according to claim 1, characterized in that: A vent pipe (61) is provided on one side of the control valve (6), and a vent plug is sealed inside the vent pipe (61).

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