A matrix multi-range pressure batch calibration module and method

Abstract

The present invention relates to a matrix multi-range pressure batch calibration module and method, belonging to the technical field of pressure metrology and calibration. The present invention includes multiple input ports, multiple output ports, multiple input solenoid valve groups and multiple output solenoid valve groups; the multiple input ports are arranged in one-to-one correspondence with the multiple input solenoid valve groups, and the multiple output ports are arranged in one-to-one correspondence with the multiple output solenoid valve groups. When multiple groups of output solenoid valves are installed in a reverse manner, it can effectively prevent the occurrence of reverse high pressure at both ends of the input solenoid valve. The present invention includes single-range calibration, multi-range single-channel calibration mode and multi-range multi-channel calibration mode, and the channels can be freely switched according to the usage needs. Through the unique installation method combining the forward and reverse directions of the solenoid valves, it can complete the calibration of multiple objects to be calibrated within the same range, and can also complete the calibration of objects to be calibrated in different range of micro pressure, medium pressure and high pressure at the same time, significantly improving the calibration efficiency.

Description

Technical Field

[0001] The present invention relates to a pressure calibration module, and particularly to a matrix multi-range pressure batch calibration module and method, belonging to the technical field of pressure metrology and calibration. Background Art

[0002] The metrology and testing technology of pressure quantity values is one of the basic metrology technologies in the field of mechanical metrology. The metrology and testing technology of pressure quantity values is widely used in fields such as aviation, aerospace, ships, and oil exploration. A large number of pressure instruments and meters such as pressure sensors and transmitters need to be calibrated regularly. The number of objects to be calibrated is large, and the range of measurement ranges is wide. Calibrating one by one wastes a large amount of manpower, material resources, and time. As can be seen from the above, there is a problem in the prior art that the batch calibration of multiple quantities and multiple ranges of pressure is not convenient and fast. Therefore, it is very necessary to design a matrix multi-range pressure batch calibration module and method. Summary of the Invention

[0003] A matrix multi-range pressure batch calibration module and method disclosed by the present invention is connected as an external expansion module of a pressure calibration device. It can calibrate in a single range and single channel or multiple channels, and can also calibrate in multiple ranges and single channel or multiple channels. And the channels can be freely switched according to the usage needs. Through a unique installation method combining the forward and reverse of solenoid valves, it can complete the calibration of multiple objects to be calibrated within the same range, and can also complete the calibration of objects to be calibrated in different measurement ranges of micro pressure, medium pressure, and high pressure at the same time, significantly improving the calibration efficiency.

[0004] The purpose of the present invention is achieved by the following technical solutions:

[0005] A matrix multi-range pressure batch calibration module disclosed by the present invention includes a plurality of input ports, a plurality of output ports, a plurality of input solenoid valve groups, and a plurality of output solenoid valve groups. The plurality of input ports are correspondingly arranged with the plurality of input solenoid valve groups one by one, and the plurality of output ports are correspondingly arranged with the plurality of output solenoid valve groups one by one.

[0006] The input solenoid valve group includes a plurality of input solenoid valves, and the output solenoid valve includes a plurality of output solenoid valves. One of the input ports is connected in parallel with a plurality of input solenoid valves in the corresponding input solenoid valve group, and one of the output ports is connected in parallel with a plurality of output solenoid valves in the corresponding output solenoid valve group. A plurality of the input solenoid valves in the plurality of input solenoid valve groups are connected to a plurality of the output solenoid valves in the plurality of output solenoid valve groups in a one-to-one correspondence according to a preset manner. One of the input ports, one of the input solenoid valves, one of the output solenoid valves, and one of the output ports form a calibration channel. The input port divides the pressure standard introduced through a plurality of input solenoid valves in the corresponding input solenoid valve group into corresponding multiple paths, and then is respectively connected to a plurality of output solenoid valves in the output solenoid valve group through pipelines, so as to respectively output the pressure standard introduced at the input port to the output port.

[0007] The plurality of input solenoid valves in the plurality of input solenoid valve groups are installed in a forward manner to connect or disconnect the corresponding calibration channels.

[0008] The plurality of output solenoid valves in the plurality of output solenoid valve groups are installed in a reverse manner to prevent the high-pressure channel from flowing back into the low-pressure channel and causing valve damage when calibration channels in the same group are connected to pressures of different ranges.

[0009] The multiple input ports are connection ports of a standard pressure source for connecting multiple standard pressure sources of the same or different ranges.

[0010] The multiple output ports serve as connection ports of the object to be calibrated.

[0011] A matrix multi-range pressure batch calibration method disclosed by the present invention includes a single-range calibration mode, a multi-range single-channel calibration mode, and a multi-range multi-channel calibration mode.

[0012] The single-range calibration mode includes:

[0013] Connect one of the input ports to a standard pressure source with a preset range, connect one or more of the output ports to one or more objects to be calibrated, and open the input solenoid valve and the output solenoid valve of the calibration channel according to calibration needs to calibrate the object to be calibrated.

[0014] In the single-range calibration mode, the input solenoid valve and the output solenoid valve in one calibration channel are opened and closed simultaneously; or the output solenoid valve is opened first and then the input solenoid valve is opened, and when closing, the input solenoid valve is closed first and then the output solenoid valve is closed.

[0015] The multi-range single-channel calibration mode includes:

[0016] Connect multiple input ports to multiple standard pressure sources with different ranges respectively, connect multiple output ports to multiple calibrated objects with different range ranges respectively, and open the input solenoid valve and the output solenoid valve in the calibration channel respectively according to the input range of the standard pressure source and the order of the output ports connected to the corresponding calibrated objects.

[0017] In the multi-range single-channel calibration mode, only one input solenoid valve in one input solenoid valve group works at the same time, and only one output solenoid valve in the corresponding output solenoid valve group works; the input solenoid valve and the output solenoid valve in one calibration channel are opened and closed simultaneously.

[0018] Only one path in each group of the output solenoid valve group can be opened at the same time, so the channels with the same serial number in the input solenoid valve group cannot be selected; the input solenoid valve and the output solenoid valve of each connected channel must be opened and closed simultaneously; and during multi-range single-channel calibration, only one path in each group of input channels is opened, that is, different input range ranges correspond to different output ports respectively, and each range range corresponds to one calibration object.

[0019] The multi-range multi-channel calibration mode includes:

[0020] Connect multiple input ports to multiple standard pressure sources with different ranges respectively, connect multiple output ports to multiple calibrated objects with the same or different range ranges respectively, arbitrarily select how many outputs are required for a certain range pressure source according to needs, and open the corresponding calibration channels in the input solenoid valve group and the output solenoid valve group respectively according to the input range of the standard pressure source and the order of the output ports connected to the corresponding calibrated objects, and then open the input solenoid valve and the output solenoid valve in the corresponding calibration channel respectively; the input solenoid valve and the output solenoid valve of each calibration channel must be opened and closed simultaneously; during multi-range multi-channel calibration, one or more in each group of input channels can be opened, that is, a certain input range range can correspond to 1 or more output ports respectively, and the order can be adjusted arbitrarily, and each range range can correspond to 1 or more calibration objects.

[0021] In the multi-range multi-channel calibration mode, one or more input solenoid valves in one input solenoid valve group can work at the same time, and one or more output solenoid valves in the corresponding output solenoid valve group can work; the input solenoid valve and the output solenoid valve in one calibration channel are opened and closed simultaneously.

[0022] Beneficial effects:

[0023] 1. A matrix - type multi - range pressure batch calibration module and method disclosed by the present invention can be connected as an external expansion module of a single calibration device. It can expand the calibration interfaces of a pressure calibration device within a certain range into multiple ones, changing from calibrating only a single object under test to calibrating multiple objects under test simultaneously, significantly improving the calibration efficiency.

[0024] 2. A matrix - type multi - range pressure batch calibration module and method disclosed by the present invention, when connected as an external expansion module of multiple calibration devices, can calibrate multiple objects under test within multiple ranges simultaneously, significantly improving the calibration efficiency.

[0025] 3. A matrix - type multi - range pressure batch calibration module and method disclosed by the present invention includes multiple groups of input solenoid valves and multiple groups of output solenoid valves. Among them, multiple groups of input solenoid valves are installed forward as the connection switches for each channel, and multiple groups of output solenoid valves are installed in a reverse manner, which can effectively prevent the occurrence of reverse high pressure at both ends of the input solenoid valves, causing reverse leakage or even damage to the input solenoid valves. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the internal structure of a matrix - type multi - range pressure batch calibration module of the present invention.

[0027] Wherein, 1 - Input Port A, 2 - Input Port B, 3 - Input Port C, 4 - Input Port D, 5 - Output Port A, 6 - Output Port B, 7 - Output Port C, 8 - Output Port D, 9 - Solenoid Valve In1 - 1, 10 - Solenoid Valve In1 - 2, 11 - Solenoid Valve In1 - 3, 12 - Solenoid Valve In1 - 4, 13 - Solenoid Valve In2 - 1, 14 - Solenoid Valve In2 - 2, 15 - Solenoid Valve In2 - 3, 16 - Solenoid Valve In2 - 4, 17 - Solenoid Valve In3 - 1, 18 - Solenoid Valve In3 - 2, 19 - Solenoid Valve In3 - 3, 20 - Solenoid Valve In3 - 4, 21 - Solenoid Valve In4 - 1, 22 - Solenoid Valve In4 - 2, 23 - Solenoid Valve In4 - 3, 24 - Solenoid Valve In4 - 4, 25 - Solenoid Valve Out1 - 1, 26 - Solenoid Valve Out1 - 2, 27 - Solenoid Valve Out1 - 3, 28 - Solenoid Valve Out1 - 4, 29 - Solenoid Valve Out2 - 1, 30 - Solenoid Valve Out2 - 2, 31 - Solenoid Valve Out2 - 3, 32 - Solenoid Valve Out2 - 4, 33 - Solenoid Valve Out3 - 1, 34 - Solenoid Valve Out3 - 2, 35 - Solenoid Valve Out3 - 3, 36 - Solenoid Valve Out3 - 4, 37 - Solenoid Valve Out4 - 1, 38 - Solenoid Valve Out4 - 2, 39 - Solenoid Valve Out4 - 3, 40 - Solenoid Valve Out4 - 4. DETAILED DESCRIPTION OF THE INVENTION

[0028] To better illustrate the purpose and advantages of the present invention, the following further describes the content of the invention in conjunction with the accompanying drawings and examples.

[0029] As Figure 1 shown, a matrix multi-range pressure batch calibration module disclosed in this embodiment includes 4 input ports (1-4), 4 output ports (5-8), 4 groups (16 channels) of input solenoid valves (9-24), and 4 groups (16 channels) of output solenoid valves (25-40).

[0030] The 4 input ports (1-4) include input port A (1), input port B (2), input port C (3), and input port D (4).

[0031] The 4 output ports (5-8) include output port A (5), output port B (6), output port C (7), and output port D (8).

[0032] The 4 groups (16 channels) of input solenoid valves (9-24) include solenoid valve In1-1 (9), solenoid valve In1-2 (10), solenoid valve In1-3 (11), solenoid valve In1-4 (12), solenoid valve In2-1 (13), solenoid valve In2-2 (14), solenoid valve In2-3 (15), solenoid valve In2-4 (16), solenoid valve In3-1 (17), solenoid valve In3-2 (18), solenoid valve In3-3 (19), solenoid valve In3-4 (20), solenoid valve In4-1 (21), solenoid valve In4-2 (22), solenoid valve In4-3 (23), and solenoid valve In4-4 (24).

[0033] The 4 groups (16 channels) of output solenoid valves (25-40) include solenoid valve Out1-1 (25), solenoid valve Out1-2 (26), solenoid valve Out1-3 (27), solenoid valve Out1-4 (28), solenoid valve Out2-1 (29), solenoid valve Out2-2 (30), solenoid valve Out2-3 (31), solenoid valve Out2-4 (32), solenoid valve Out3-1 (33), solenoid valve Out3-2 (34), solenoid valve Out3-3 (35), solenoid valve Out3-4 (36), solenoid valve Out4-1 (37), solenoid valve Out4-2 (38), solenoid valve Out4-3 (39), and solenoid valve Out4-4 (40).

[0034] In this embodiment, among the 4 groups (16 channels) of input solenoid valves, taking In1-1 as an example, In represents the input solenoid valve, and 1-1 represents the first channel of the first group, that is, the two 1s respectively represent the group number and the channel sequence number. Among the 4 groups (16 channels) of output solenoid valves, taking Out1-1 as an example, Out represents the output solenoid valve, and 1-1 represents the first channel of the first group, that is, the two 1s respectively represent the group number and the channel sequence number.

[0035] The main function of the 4-way input port (1-4) is to be a connection port for pressure standards, which can be connected to 4 pressure standards of the same or different ranges.

[0036] The main function of the 4 output ports (5-8) is to be the connection port for the calibrated sensor or the calibrated system.

[0037] The 4 groups (16 channels) of input solenoid valves (9-24) are installed in a forward direction, and their main function is to connect or disconnect corresponding channels.

[0038] The 4 groups (16 channels) of output solenoid valves (25-40) are installed in reverse (a unique method explored through years of work experience). The main function is to prevent the high-pressure channel from flowing back into the low-pressure channel when the same group of channels are connected to different pressure ranges, causing the low-pressure channel input solenoid valve to have reverse high pressure, causing the input solenoid valve to leak in reverse or even be damaged.

[0039] The connection relationship of a matrix multi-range pressure batch calibration module disclosed in this embodiment is as follows: The input port A(1) divides the pressure standard connected to the input port A(1) into 4 paths through the solenoid valves In1-1(9), In1-2(10), In1-3(11), and In1-4(12), and then is respectively connected to the solenoid valves Out1-1(25), Out2-1(29), Out3-1(33), and Out4-1(37) at the output end through pipelines, so as to output the pressure standard connected to the input port A(1) to the output ports A, B, C, and D(5-8) respectively; The input port B(2) divides the pressure standard connected to the input port B(2) into 4 paths through the input solenoid valves In2-1(13), In2-2(14), In2-3(15), and In2-4(16), and then is respectively connected to the solenoid valves Out1-2(26), Out2-2(30), Out3-2(34), and Out4-2(38) at the output end through pipelines, so as to output the pressure standard connected to the input port B(2) to the output ports A, B, C, and D(5-8) respectively; The input port C(3) divides the pressure standard connected to the input port C(3) into 4 paths through the input solenoid valves In3-1(17), In3-2(18), In3-3(19), and In3-4(20), and then is respectively connected to the solenoid valves Out1-3(27), Out2-3(31), Out3-3(35), and Out4-3(39) at the output end through pipelines, so as to output the pressure standard connected to the input port C(3) to the output ports A, B, C, and D(5-8) respectively; The input port D(4) divides the pressure standard connected to the input port D(4) into 4 paths through the input solenoid valves In4-1(21), In4-2(22), In4-3(23), and In4-4(24), and is respectively connected to the solenoid valves Out1-4(12), Out2-4(32), Out3-4(36), and Out4-4(40) at the output end through pipelines, so as to output the pressure standard connected to the input port D(4) to the output ports A, B, C, and D(5-8) respectively.

[0040] The working method of a matrix multi-range pressure batch calibration module disclosed in this embodiment is as follows:

[0041] Single-range single-channel calibration: Taking the output from the input port A(1) to the output port A(5) as an example, when a standard pressure source of a certain range is connected to the input port A(1) and a calibrated object of a corresponding range is connected to the output port A(5), and the input solenoid valve In1-1(9) and the output solenoid valve Out1-1(25) are opened simultaneously, single-range single-channel calibration can be achieved.

[0042] Single-range multi-channel calibration: Taking the case where the input from port A(1) is output to ports A(5), B(6), C(7), and D(8) as an example, connect the standard pressure source of a certain range to input port A(1), and connect the objects to be calibrated corresponding to 1 range to output ports A(5), B(6), C(7), and D(8) respectively. Then, simultaneously open input solenoid valve In1-1(9) and output solenoid valve Out1-1(25), input solenoid valve In1-2(10) and output solenoid valve Out2-1(29), input solenoid valve In1-3(11) and output solenoid valve Out3-1(33), and input solenoid valve In1-4(12) and output solenoid valve Out4-1(37) to achieve single-range multi-channel calibration.

[0043] Multi-range single-channel calibration: Connect input ports A, B, C, and D(1 - 4) to standard pressure sources of different ranges respectively. According to the need, connect the objects to be calibrated corresponding to 4 different range ranges to output ports A, B, C, and D(5 - 8) respectively. According to the input range and the order of the output ports to which the corresponding objects to be calibrated are connected (taking the one-to-one correspondence of sequence numbers as an example), open the corresponding channels in 4 groups of input solenoid valves and 4 groups of output solenoid valves, namely In1-1 and Out1-1, In2-2 and Out2-2, In3-3 and Out3-3, In4-4 and Out4-4. The input solenoid valve and the output solenoid valve of each connected channel must be opened and closed simultaneously.

[0044] Multi-range multi-channel calibration: Connect input ports A, B, C, and D(1 - 4) to standard pressure sources of different ranges respectively. According to the need, connect the objects to be calibrated corresponding to 4 same or different range ranges to output ports A, B, C, and D(5 - 8) respectively. The user can arbitrarily select how many output channels are needed for a certain range pressure source according to the need (up to 4 channels in the example of this instruction diagram, which can be expanded). According to the input range and the order of the output ports to which the corresponding objects to be calibrated are connected, open the corresponding channels in 4 groups of input solenoid valves and 4 groups of output solenoid valves. Taking the example where the standard pressure of input port 1 is output to output ports 1 and 2, input port 2 does not output, input port 3 is output to output port 3, and input port 4 is output to output port 4, open In1-1 and Out1-1, In1-2 and Out2-1, In3-3 and Out3-3, In4-4 and Out4-4. The input solenoid valve and the output solenoid valve of each connected channel must be opened and closed simultaneously. During multi-range multi-channel calibration, one or more in each group of input channels can be opened, that is, for a certain input range, it can correspond to 1 or more output ports (the order can be adjusted arbitrarily), and each range can correspond to 1 or more calibration objects.

[0045] It should be noted that only 4 groups (16 channels) are listed in this embodiment. In actual application, the input groups and the number of channels can be expanded according to requirements.

[0046] The above specific description further details the purpose, technical solution and beneficial effects of the invention. It should be understood that the above is only a specific embodiment of the present invention and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A matrix multi-range pressure batch calibration module, characterized in that It includes multiple input ports, multiple output ports, multiple input solenoid valve groups and multiple output solenoid valve groups. The multiple input ports are set in one-to-one correspondence with the multiple input solenoid valve groups, and the multiple output ports are set in one-to-one correspondence with the multiple output solenoid valve groups; The input solenoid valve group includes multiple input solenoid valves, and the output solenoid valve group includes multiple output solenoid valves. One input port is connected in parallel with the multiple input solenoid valves in the corresponding input solenoid valve group, and one output port is connected in parallel with the multiple output solenoid valves in the corresponding output solenoid valve group. Each input solenoid valve in each input solenoid valve group is respectively connected in one-to-one correspondence with one of the output solenoid valves in multiple different output solenoid valve groups. One input port, one input solenoid valve, one output solenoid valve and one output port form a calibration channel. The input port divides the pressure standard input from the input port into corresponding multiple paths through the multiple input solenoid valves in the corresponding input solenoid valve group, and then is respectively connected to the multiple output solenoid valves in the output solenoid valve group through pipelines, so as to output the pressure standard input from the input port to the output port respectively.

2. The matrix multi-range pressure batch calibration module according to claim 1, wherein The multiple input solenoid valves in the multiple input solenoid valve groups are installed in a forward manner to connect or disconnect the corresponding calibration channels; The multiple output solenoid valves in the multiple output solenoid valve groups are installed in a reverse manner to prevent the high-pressure channel from flowing back into the low-pressure channel and causing valve damage when calibration channels in the same group are connected to pressures of different ranges.

3. The matrix multi-range pressure batch calibration module according to claim 1, wherein The multiple input ports are connection ports of a standard pressure source for connecting multiple standard pressure sources with the same or different ranges; The multiple output ports serve as connection ports of the object to be calibrated.

4. A matrix multi-range pressure batch calibration method, implemented using the matrix multi-range pressure batch calibration module described in any one of claims 1 to 3, characterized in that, The calibration method includes a single-range calibration mode, a multi-range single-channel calibration mode and a multi-range multi-channel calibration mode.

5. The matrix multi-range pressure batch calibration method according to claim 4, wherein The single-range calibration mode includes: Connect one input port to a standard pressure source with a preset range, connect one or more output ports to one or more objects to be calibrated, open the input solenoid valve and the output solenoid valve of the calibration channel, and calibrate the object to be calibrated; In the single-range calibration mode, the input solenoid valve and the output solenoid valve in one calibration channel are opened and closed simultaneously; or the output solenoid valve is opened first and then the input solenoid valve is opened, and when closing, the input solenoid valve is closed first and then the output solenoid valve is closed.

6. The matrix multi-range pressure batch calibration method according to claim 4, characterized in that The multi-range single-channel calibration mode includes: Connect the multiple input ports to multiple standard pressure sources with different ranges respectively, connect the multiple output ports to multiple objects to be calibrated with different range ranges respectively, and open the input solenoid valve and the output solenoid valve in the calibration channel respectively according to the input range of the standard pressure source and the order of the output ports to which the corresponding objects to be calibrated are connected; In the multi-range single-channel calibration mode, only one of the input solenoid valves in one of the input solenoid valve groups works at a time, and only one of the output solenoid valves in the corresponding output solenoid valve group works; the input solenoid valve and the output solenoid valve in one calibration channel are opened and closed simultaneously. Only one path in each group of the output solenoid valve group can be opened at a time, so the channels with the same sequence number in the input solenoid valve group cannot be selected; the input solenoid valve and the output solenoid valve of each connected channel must be opened and closed simultaneously; and during multi-range single-channel calibration, only one path in each group of input channels is opened, that is, different input range ranges correspond to different output ports, and each range corresponds to one calibration object.

7. The matrix multi-range pressure batch calibration method according to claim 4, wherein, The multi-range multi-channel calibration mode includes: Connect multiple input ports to standard pressure sources with multiple different ranges respectively, connect multiple output ports to calibrated objects with multiple same or different range ranges respectively, arbitrarily select how many paths of output are required for a certain range pressure source according to needs, and according to the input range of the standard pressure source and the sequence of the output ports connected to the corresponding calibrated objects, open the corresponding calibration channels in the input solenoid valve group and the output solenoid valve group respectively, and then open the input solenoid valve and the output solenoid valve in the corresponding calibration channel respectively; the input solenoid valve and the output solenoid valve of each calibration channel must be opened and closed simultaneously; during multi-range multi-channel calibration, one or more of the input solenoid valves in one of the input solenoid valve groups can work at a time, and one or more of the output solenoid valves in the corresponding output solenoid valve group can work; that is, a certain input range range can correspond to one or more output ports, and the sequence can be adjusted arbitrarily, and each range can correspond to one or more calibration objects. In the multi-range multi-channel calibration mode, one or more of the input solenoid valves in one of the input solenoid valve groups can work at a time, and one or more of the output solenoid valves in the corresponding output solenoid valve group can work.

Images