Pressure sensor verification tool

Abstract

The invention belongs to the technical field of pressure testing equipment, and discloses a pressure sensor verification tool, the pressure sensor verification tool comprises a tool main body, a gas supply assembly and a connecting pipe, a first mounting part and a second mounting part are respectively arranged at two ends of the main body part, one end of a communicating pipe is communicated with a containing cavity, the other end of the communicating pipe is communicated with a gas supply joint, and the gas supply joint is connected with the gas supply assembly. The connecting end is communicated with the accommodating cavity, the mounting end is connected with the pressure sensor, the connecting pipe is provided with a mounting hole, the pressure sensors with different sizes are respectively mounted in the first mounting part, the second mounting part and the mounting hole which are correspondingly matched, gas is introduced into the accommodating cavity under the action of the gas pump, and the different pressure sensors are subjected to pressure test verification. The pressure gauge monitors the air inlet pressure value, the pressure sensors of different sizes are connected and verified through the same verification tool, the installation universality of the pressure sensors of different sizes is improved, the later equipment debugging period is shortened, and the timeliness of the verification test of the pressure sensors is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of pressure testing equipment, and in particular to a pressure sensor calibration tool. Background Art

[0002] A pressure sensor is a device that can sense pressure signals and convert them into usable electrical signal outputs according to certain rules. It is usually composed of a pressure sensitive element and a signal processing unit and is widely used in industries such as shipbuilding.

[0003] After the equipment enters the factory, the pressure sensor must be calibrated on site. At present, all shipyards block some pipes and perform pressure tests after the pressure sensor is installed. However, there are many types of pressure sensors. Before installation, it is impossible to directly connect the test air pump and monitoring air pressure gauge, and it is impossible to achieve the single-end closed test requirements, which prolongs the calibration time of pressure sensors of different sizes, wastes the later equipment commissioning period, and cannot guarantee the timeliness of the calibration test.

[0004] Therefore, there is an urgent need for pressure sensor calibration tooling to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a pressure sensor calibration tool that can install pressure sensors of different sizes for pressure testing and calibration, has high installation versatility, saves later equipment debugging time, and greatly improves the timeliness of pressure sensor calibration testing.

[0006] In order to solve the above problems existing in the prior art, the present invention adopts the following technical solutions:

[0007] Pressure sensor calibration tooling, including:

[0008] A tool body, the tool body comprising a main body, a first mounting part and a second mounting part, the first mounting part and the second mounting part are respectively arranged at two ends of the main body, the diameter of the first mounting part is larger than the diameter of the second mounting part, and the main body has a receiving cavity;

[0009] An air supply component, the air supply component comprising a connecting pipe and an air supply joint, one end of the connecting pipe is connected to the accommodating cavity, the other end of the connecting pipe is connected to the air supply joint, and the air supply joint is connected to an air pump;

[0010] A connecting pipe, wherein the connecting pipe has a connecting end and a mounting end, wherein the connecting end is connected to the accommodating cavity, and the mounting end is connected to the pressure sensor. The connecting pipe is provided with a mounting hole, and the mounting hole is used to connect a pressure gauge.

[0011] Preferably, the air supply component also includes a boost valve and a pressure relief valve, the air supply connector is provided with a first through hole and a second through hole, the boost valve is connected to the first through hole and is used to adjust the air intake volume of the air supply connector, and the pressure relief valve is connected to the second through hole and is used to adjust the exhaust volume of the air supply connector.

[0012] Preferably, the air supply assembly further includes a plugging cover, the air supply connector further includes an exhaust port, the plugging cover is disposed at the exhaust port, and is used to open or close the exhaust port.

[0013] Preferably, the pressure sensor calibration tool further includes a first plug, which is arranged at the mounting end and is used to open or close the mounting end.

[0014] Preferably, the first plug is provided with an external thread, the mounting end is provided with an internal thread, and the first plug is threadably connected to the mounting end.

[0015] Preferably, the pressure sensor calibration tool further includes a second plug, which is arranged at the mounting hole and is used to open or close the mounting hole.

[0016] Preferably, the second plug is provided with an external thread, the mounting hole is provided with an internal thread, and the second plug is threadedly connected to the mounting hole.

[0017] Preferably, the main body is provided with a first connecting hole and a second connecting hole, the first connecting hole and the second connecting hole are both provided with internal threads, the connecting end is provided with external threads, the connecting end is threadedly connected to the first connecting hole, one end of the connecting tube is provided with external threads, and the connecting tube is threadedly connected to the second connecting hole.

[0018] Preferably, the tool body further comprises a supporting portion, which is arranged on the main body and is used for supporting on the ground.

[0019] Preferably, the pressure sensor calibration tool further includes a first end cover and a second end cover, the first end cover is arranged on the first mounting portion, and the second end cover is arranged on the second mounting portion.

[0020] The beneficial effects of the present invention are:

[0021] The pressure sensor calibration tool provided by the present invention comprises a tool body including a main body, a first mounting part and a second mounting part. The first mounting part and the second mounting part are respectively welded and fixed at both ends of the main body and are used for externally connecting a pressure sensor. The diameter of the first mounting part is larger than the diameter of the second mounting part, and the main body has a receiving cavity. The air supply assembly comprises a connecting pipe and an air supply joint. One end of the connecting pipe is connected to the receiving cavity, and the other end of the connecting pipe is connected to the air supply joint, and the air supply joint is connected to an air pump. The connecting pipe has a connecting end and a mounting end. The connecting end is connected to the receiving cavity, and the mounting end is connected to the pressure sensor. The connecting pipe is provided with a mounting hole, and the mounting hole is used to connect a pressure gauge. Pressure sensors of different sizes are respectively mounted on the corresponding matching first mounting part, the second mounting part and the mounting hole. Then, the air pump is started. Under the action of the air pump, gas is introduced into the receiving cavity of the tool body. The gas flows to different pressure sensors for pressure test calibration. At the same time, the pressure gauge monitors the intake pressure value in the tool body to verify the accuracy of the air pump pressure value. Pressure sensors of different sizes are connected and calibrated through the same calibration tooling, and the calibration work of pressure sensors of different sizes before installation is safely completed during the storage stage, which improves the installation versatility of pressure sensors of different sizes, saves the later equipment debugging period, and greatly improves the timeliness of pressure sensor calibration testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a pressure sensor calibration tool provided in an embodiment of the present invention;

[0023] Figure 2 A top view of a tool body provided by an embodiment of the present invention;

[0024] Figure 3 A schematic structural diagram of a first end cover provided in an embodiment of the present invention;

[0025] Figure 4 A schematic structural diagram of a first mounting portion provided in an embodiment of the present invention.

[0026] Reference numerals:

[0027] 1. Tool body; 11. Main body; 12. First mounting part; 13. Second mounting part; 14. Support part;

[0028] 2. Air supply assembly; 21. Connecting pipe; 22. Air supply connector; 23. Pressure boost valve; 24. Pressure relief valve;

[0029] 3. Connecting pipe; 31. Connecting end; 32. Mounting end;

[0030] 4. Exhaust port;

[0031] 5. The first plug;

[0032] 6. Second plug;

[0033] 7. First end cover;

[0034] 8. Second end cover. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0036] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0039] like Figure 1-Figure 4As shown, in this embodiment, the pressure sensor calibration tooling includes a tooling body 1, an air supply assembly 2 and a connecting pipe 3. Among them, the tooling body 1 includes a main body 11, a first mounting portion 12 and a second mounting portion 13, the first mounting portion 12 and the second mounting portion 13 are respectively arranged at both ends of the main body 11, the diameter of the first mounting portion 12 is greater than the diameter of the second mounting portion 13, and the main body 11 has a accommodating cavity. The air supply assembly 2 includes a connecting pipe 21 and an air supply connector 22, one end of the connecting pipe 21 is connected to the accommodating cavity, and the other end of the connecting pipe 21 is connected to the air supply connector 22, and the air supply connector 22 is connected to the air pump. The connecting pipe 3 has a connecting end 31 and a mounting end 32, the connecting end 31 is connected to the accommodating cavity, the mounting end 32 is connected to the pressure sensor, and the connecting pipe 3 is provided with a mounting hole, and the mounting hole is used to connect the pressure gauge.

[0040] Specifically, the first mounting portion 12 and the second mounting portion 13 are flanges, which are respectively welded and fixed at both ends of the main body 11 and are used to connect an external pressure sensor. The main body 11 is a cylindrical structure with a wall thickness of 2 mm and a length of 300 mm. The main body 11 has a receiving cavity for accommodating gas. The diameter of the first mounting portion 12 is greater than the diameter of the second mounting portion 13. The diameter of the first mounting portion 12 is 2 inches, and the diameter of the second mounting portion 13 is 1 inch. Two pressure sensors of different sizes can be installed on the main body 11 through the first mounting portion 12 and the second mounting portion 13 respectively and connected to the receiving cavity. The length of the connecting pipe 3 and the connecting pipe 21 is 100 mm. The side wall of the connecting pipe 3 is provided with a mounting hole that can connect an external pressure gauge. The connecting pipe 3 is connected to the receiving cavity through the connecting end 31. The connecting pipe 3 is connected to the external pressure sensor through the mounting end 32, and the diameter of the mounting end 32 is different from that of the first mounting portion 12 and the second mounting portion 13, which further improves the installation versatility of pressure sensors of different sizes. The air supply connector 22 is connected to the accommodating cavity through the connecting pipe 21 . The air supply connector 22 is used to connect to an external air pump to provide gas to the tooling body 1 and perform pressure testing on the pressure sensor.

[0041] The working process of the pressure sensor calibration tool is as follows: three pressure sensors of different sizes are installed on the corresponding matching first mounting part 12, second mounting part 13 and mounting hole respectively, then the air pump is started, and gas is introduced into the accommodating cavity of the tool body 1 under the action of the air pump. The gas flows to different pressure sensors for pressure test calibration. At the same time, the pressure gauge monitors the intake pressure value in the tool body 1 to verify the accuracy of the air pump pressure value. Pressure sensors of different sizes are connected and calibrated through the same calibration tool, and the calibration work of pressure sensors of different sizes before installation is safely completed during the storage stage. It has a wide range of general applications, saves the later equipment debugging period, and greatly improves the safety and timeliness of pressure sensor calibration tests.

[0042] Further, refer to Figure 1 The air supply assembly 2 further includes a boost valve 23 and a pressure relief valve 24. The air supply connector 22 is provided with a first through hole and a second through hole. The boost valve 23 is connected to the first through hole and is used to adjust the air intake of the air supply connector 22. The pressure relief valve 24 is connected to the second through hole and is used to adjust the exhaust volume of the air supply connector 22. Specifically, the boost valve 23 and the pressure relief valve 24 are used as pressure control valves on the air pressure equipment, wherein the boost valve 23 is opened to increase the air intake of the air pump to the air supply connector 22, and the pressure relief valve 24 is opened to increase the exhaust volume of the air pump to the air supply connector 22, so as to facilitate the pressure test and verification of the pressure sensor.

[0043] Further, continue to refer to Figure 1 The gas supply assembly 2 further includes a plugging cover, and the gas supply connector 22 further includes an exhaust port 4. The plugging cover is disposed at the exhaust port 4 and is used to open or close the exhaust port 4. Specifically, the plugging cover is in a closed state by default, that is, the exhaust port 4 is closed. Before or after testing the pressure sensor, the plugging cover is opened, the exhaust port 4 is opened, and the gas pressure of the tooling body 1 is released to ensure the accuracy of the test data.

[0044] Further, continue to refer to Figure 1 The pressure sensor calibration tooling also includes a first plug 5 and a second plug 6. The first plug 5 is arranged at the mounting end 32 and is used to open or close the mounting end 32. The second plug 6 is arranged at the mounting hole and is used to open or close the mounting hole. Specifically, the first plug 5 is provided with an external thread, the mounting end 32 is provided with an internal thread, the first plug 5 is threadedly connected to the mounting end 32, the second plug 6 is provided with an external thread, the mounting hole is provided with an internal thread, and the second plug 6 is threadedly connected to the mounting hole. When it is necessary to install the pressure sensor and the pressure gauge, the first plug 5 and the second plug 6 are screwed, and the mounting hole and the mounting end 32 are opened to connect the pressure sensor and the pressure gauge, which is convenient for disassembly and assembly and simple to operate. When installation is not required, the first plug 5 and the second plug 6 are tightened, and the mounting hole and the mounting end 32 are closed to prevent dust and impurities from entering the tooling body 1 and affecting the test.

[0045] Further, continue to refer to Figure 1 The main body 11 is provided with a first connection hole and a second connection hole, both of which are provided with internal threads, and the connection end 31 is provided with external threads, which are threadedly connected to the first connection hole, and one end of the connecting pipe 21 is provided with external threads, which are threadedly connected to the second connection hole. Specifically, the connecting pipe 3 and the connecting pipe 21 are threadedly connected to the first connection hole and the second connection hole corresponding to the main body 11, which are convenient for disassembly and assembly, can be freely assembled, and are relatively simple to operate.

[0046] Further, refer to Figure 1-Figure 2The tool body 1 also includes a support portion 14, which is disposed on the main body 11 and is used to support the ground. Specifically, the support portion 14 is welded to the bottom of the main body 11, and the tool body 1 is supported on the ground by the support portion 14, which is convenient for the operator to stand and operate.

[0047] Further, continue to refer to Figure 1-Figure 4 The pressure sensor calibration tooling also includes a first end cover 7 and a second end cover 8. The first end cover 7 is arranged on the first mounting portion 12, and the second end cover 8 is arranged on the second mounting portion 13. Specifically, the first end cover 7 and the second end cover 8 are flange blind plates, and the diameter of the first end cover 7 matches the first mounting portion 12, and the diameter of the second end cover 8 matches the second mounting portion 13. The first end cover 7 and the second end cover 8 respectively block the first mounting portion 12 and the second mounting portion 13 to prevent dust and impurities from entering the tooling body 1 and affecting the test. The first end cover 7 and the second end cover 8 are disassembled and assembled, and pressure sensors of different sizes are respectively installed on the first mounting portion 12 and the second mounting portion 13 for calibration testing.

[0048] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Pressure sensor calibration tooling, characterized in that: include: A tool body (1), the tool body (1) comprising a main body (11), a first mounting portion (12) and a second mounting portion (13), the first mounting portion (12) and the second mounting portion (13) being respectively arranged at two ends of the main body (11), the diameter of the first mounting portion (12) being greater than the diameter of the second mounting portion (13), and the main body (11) having a receiving cavity; An air supply component (2), the air supply component (2) comprising a connecting pipe (21) and an air supply connector (22), one end of the connecting pipe (21) being connected to the accommodating cavity, the other end of the connecting pipe (21) being connected to the air supply connector (22), and the air supply connector (22) being connected to an air pump; A connecting pipe (3), the connecting pipe (3) having a connecting end (31) and a mounting end (32), the connecting end (31) being connected to the accommodating cavity, the mounting end (32) being connected to a pressure sensor, and the connecting pipe (3) being provided with a mounting hole, the mounting hole being used for connecting a pressure gauge.

2. The pressure sensor calibration tool according to claim 1, characterized in that: The air supply assembly (2) further comprises a pressure boost valve (23) and a pressure relief valve (24); the air supply connector (22) is provided with a first through hole and a second through hole; the pressure boost valve (23) is connected to the first through hole and is used to adjust the air intake volume of the air supply connector (22); the pressure relief valve (24) is connected to the second through hole and is used to adjust the air exhaust volume of the air supply connector (22).

3. The pressure sensor calibration tool according to claim 1, characterized in that: The air supply assembly (2) further comprises a plugging cover, the air supply connector (22) further comprises an exhaust port (4), the plugging cover is arranged at the exhaust port (4) and is used to open or close the exhaust port (4).

4. The pressure sensor calibration tool according to claim 1, characterized in that: The pressure sensor calibration tool further comprises a first plug (5), wherein the first plug (5) is arranged at the mounting end (32) and is used to open or close the mounting end (32).

5. The pressure sensor calibration tool according to claim 4, characterized in that: The first plug (5) is provided with an external thread, the mounting end (32) is provided with an internal thread, and the first plug (5) is threadedly connected to the mounting end (32).

6. The pressure sensor calibration tool according to claim 1, characterized in that: The pressure sensor calibration tool further comprises a second plug (6), which is arranged on the mounting hole and is used to open or close the mounting hole.

7. The pressure sensor calibration tool according to claim 6, characterized in that: The second plug (6) is provided with an external thread, the mounting hole is provided with an internal thread, and the second plug (6) is threadedly connected to the mounting hole.

8. The pressure sensor calibration tool according to claim 1, characterized in that: The main body (11) is provided with a first connecting hole and a second connecting hole, the first connecting hole and the second connecting hole are both provided with internal threads, the connecting end (31) is provided with external threads, the connecting end (31) is threadedly connected to the first connecting hole, one end of the connecting pipe (21) is provided with external threads, and the connecting pipe (21) is threadedly connected to the second connecting hole.

9. The pressure sensor calibration tool according to claim 1, characterized in that: The tool body (1) further comprises a support portion (14), wherein the support portion (14) is arranged on the main body (11) and is used for supporting on the ground.

10. The pressure sensor calibration tool according to claim 1, characterized in that: The pressure sensor calibration tool further comprises a first end cover (7) and a second end cover (8), wherein the first end cover (7) is arranged on the first mounting portion (12), and the second end cover (8) is arranged on the second mounting portion (13).

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