CN215573558U - Pressure measuring device under gaseous high temperature state - Google Patents
Pressure measuring device under gaseous high temperature state Download PDFInfo
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- CN215573558U CN215573558U CN202121628425.9U CN202121628425U CN215573558U CN 215573558 U CN215573558 U CN 215573558U CN 202121628425 U CN202121628425 U CN 202121628425U CN 215573558 U CN215573558 U CN 215573558U
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Abstract
The utility model discloses a pressure measuring device under a high-temperature gas state, which comprises a loading bin, a balanced cooling isolation bin, a heat insulation pressure transmission pipe, a temperature regulating unit and a pressure regulating unit, wherein the loading bin is used for loading gas; the loading bin comprises a sealing cover and a bin body, the sealing cover and the bin body are sealed and enclosed to form a heating cavity, the sealing cover is provided with an air guide port and a pressurizing port, the air guide port and the pressurizing port are both communicated with the heating cavity, the bin body is provided with a heating port, and the heating port is communicated with the heating cavity; the balance cooling isolation bin is internally filled with cooling liquid; the heat insulation pressure transmission pipe penetrates through the balance cooling isolation bin to be soaked in the cooling liquid; one end of the heat insulation and transmission pipe is connected and conducted with the air guide port, and the other end of the heat insulation and transmission pipe is used for being connected with the reference pressure gauge; the temperature regulating unit is connected with the heating port and is used for monitoring and regulating the temperature in the heating cavity; the pressure regulating unit is connected with the pressurizing port and used for monitoring and regulating the pressure in the heating cavity; therefore, the problem that the pressure tracing of the high-temperature working state cannot be realized in the prior art is solved.
Description
Technical Field
The utility model relates to the technical field of pressure measurement, in particular to a pressure measurement device in a gas high-temperature state.
Background
Metrology traceability refers to the property of associating the measurement result or value of a measurement standard with a specified reference standard (usually a national metrology standard or an international metrology standard) through a documented calibration chain with a specified measurement uncertainty and without interruption.
Because the pressure reference is based on the normal temperature, the existing pressure tracing chain is based on the pressure tracing under the normal temperature state, and the pressure instrument tracing mode under the normal temperature state cannot well reflect the pressure value of the traced pressure instrument under the high-temperature working state. And the existing normal temperature pressure detection needs the field operation of personnel, and the personnel directly contact with the equipment.
Namely, there are various problems in the prior art, such as lack of high temperature tracing environment, pressure detection in non-high temperature environment, pressure tracing that cannot reproduce high temperature working state, need of on-site detection of personnel in high temperature environment, and existence of accidental injury danger.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pressure measuring device in a high-temperature gas state, and aims to solve the problem that pressure tracing in a high-temperature working state cannot be realized in the prior art.
In order to solve the technical problem, the utility model provides a pressure measuring device in a gas high-temperature state, which comprises a loading bin, a balanced cooling isolation bin, a heat insulation pressure transmission pipe, a temperature regulating and controlling unit and a pressure regulating and controlling unit, wherein the loading bin is used for storing a pressure measuring signal; the loading bin comprises a sealing cover and a bin body, the sealing cover and the bin body are enclosed to form a heating cavity, the sealing cover is provided with an air guide opening and a pressurizing opening, the air guide opening and the pressurizing opening are both communicated with the heating cavity, the bin body is provided with a heating opening, and the heating opening is communicated with the heating cavity; the balance cooling isolation bin is internally filled with cooling liquid; the heat insulation and pressure transmission pipe penetrates through the balance cooling isolation bin to be soaked in the cooling liquid; one end of the heat insulation and pressure transmission pipe is connected and conducted with the air guide port, and the other end of the heat insulation and pressure transmission pipe is used for being connected with a reference pressure gauge; the temperature regulating unit is connected with the heating port and is used for monitoring the temperature in the heating cavity and regulating the temperature in the heating cavity to a preset value; the pressure regulating and controlling unit is connected with the pressurizing port and used for monitoring the pressure in the heating cavity and regulating and controlling the pressure in the heating cavity to a preset value.
In one embodiment, a circle of flange is arranged on the peripheral side of the sealing cover and the peripheral side of the bin body, a circle of groove is arranged on the surface, opposite to the two flanges, of each flange, and a sealing ring is embedded in each groove.
In one embodiment, the heat-insulation pressure-transmission pipe comprises a first pipe section, a second pipe section and a third pipe section which are sequentially connected and communicated; the first pipe section is connected and communicated with the air guide port; the second pipe section is arranged in the balanced cooling isolation bin and is spirally arranged; the third pipe section is arranged outside the balance cooling isolation bin and is used for being connected with the reference pressure gauge.
In one embodiment, the loading bin is made of copper.
In one embodiment, the pressure measurement device further comprises a control host, wireless signal transmission is performed between the control host and the temperature regulation and control unit and between the control host and the pressure regulation and control unit, and the control host is used for wirelessly regulating and controlling the heating temperature of the temperature regulation and control unit and the applied pressure of the pressure regulation and control unit.
In one embodiment, the temperature regulation unit comprises a heater, a temperature sensor and a heating controller; the heater is connected with the heating port; the temperature sensor is used for detecting the temperature of the heating cavity; the heating controller is in wireless signal transmission with the control host, and the heating controller is used for regulating and controlling the heating state of the heater according to the detected temperature result.
In one embodiment, the pressure regulating unit comprises a pressurizer, a pressure sensor and a pressurization controller; the pressurizer is connected with the pressurizing port; the pressure sensor is used for detecting the pressure of the heating cavity; the pressurization controller is in wireless signal transmission with the control host, and the pressurization controller is used for regulating and controlling the pressurization state of the pressurizer according to the detected pressure result.
In one embodiment, the end of the heat-insulation pressure-transmitting pipe, which is used for being connected with the reference pressure gauge, is provided with a secondary loading bin, the structure of the secondary loading bin is the same as that of the loading bin, and the secondary loading bin is used for loading the reference pressure gauge.
In one embodiment, the temperature regulation unit is connected with the loading bin and the auxiliary loading bin in the same way for regulation.
In one embodiment, the pressure regulating unit is connected with the loading bin and the auxiliary loading bin for regulation in the same way.
The utility model has the following beneficial effects:
when the pressure tracing device is used, a detection instrument can be placed in a heating cavity, the heat insulation pressure transmission pipe penetrates through the balance cooling isolation bin to be soaked in cooling liquid, one end of the heat insulation pressure transmission pipe is connected and conducted with the gas guide port, and the other end of the heat insulation pressure transmission pipe is used for being connected with the reference pressure gauge, so that high-temperature pressure in the heating cavity can be transmitted to the balance cooling isolation bin through the heat insulation pressure transmission pipe to be changed into low-temperature pressure, then detection tracing is achieved through the reference pressure gauge, and the problem that pressure tracing in a high-temperature working state cannot be achieved in the prior art is practically solved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a structure provided by an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is an enlarged view of part A of FIG. 2;
fig. 4 is a schematic diagram of connection of the units of fig. 1.
The reference numbers are as follows:
10. a loading bin; 11. sealing the cover; 111. an air guide port; 112. a pressurizing port; 12. a bin body; 121. a heating port; 13. a heating cavity; 14. a flange; 15. a groove; 16. a seal ring;
20. a balanced cooling isolation bin; 21. cooling liquid;
30. a heat-insulating pressure-transmitting pipe; 31. a first tube section; 32. a second tube section; 33. a third tube section;
40. a temperature regulation unit; 41. a heater; 42. a temperature sensor; 43. a heating controller;
50. a pressure regulation unit; 51. a pressurizer; 52. a pressure sensor; 53. a pressurization controller;
60. a control host;
70. and a secondary loading bin.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The utility model provides a pressure measuring device in a gas high-temperature state, which is shown in fig. 1, fig. 2 and fig. 4, and comprises a loading bin 10, a balanced cooling isolation bin 20, a heat insulation pressure transmission pipe 30, a temperature regulating unit 40 and a pressure regulating unit 50; the loading bin 10 comprises a sealing cover 11 and a bin body 12, the sealing cover 11 and the bin body 12 are enclosed to form a heating cavity 13, the sealing cover 11 is provided with an air guide opening 111 and a pressurizing opening 112, the air guide opening 111 and the pressurizing opening 112 are both communicated with the heating cavity 13, the bin body 12 is provided with a heating opening 121, and the heating opening 121 is communicated with the heating cavity 13; the balance cooling isolation bin 20 is filled with cooling liquid 21; the heat insulation and pressure transmission pipe 30 penetrates through the balance cooling isolation bin 20 to be soaked in the cooling liquid 21; one end of the heat-insulation and pressure-transmission pipe 30 is connected and conducted with the gas guide port 111, and the other end of the heat-insulation and pressure-transmission pipe 30 is used for being connected with a reference pressure gauge (not shown); the temperature regulating unit 40 is connected with the heating port 121, and the temperature regulating unit 40 is used for monitoring the temperature in the heating cavity 13 and regulating and controlling the temperature in the heating cavity 13 to a preset value; the pressure regulating unit 50 is connected to the pressure port 112, and the pressure regulating unit 50 is used for monitoring the pressure in the heating chamber 13 and regulating the pressure in the heating chamber 13 to a preset value.
When the pressure tracing device is used, a detection instrument can be placed in the heating cavity 13, the temperature in the heating cavity 13 is regulated and controlled through the temperature regulation and control unit 40, the pressure in the heating cavity 13 is regulated and controlled through the pressure regulation and control unit 50, then the heat-insulation pressure transmission pipe 30 can transmit the high-temperature pressure in the heating cavity 13 to the balance cooling isolation bin 20 to change the high-temperature pressure into low-temperature pressure, and finally, the detection tracing is realized through the reference pressure gauge, so that the problem that the pressure tracing in the high-temperature working state can not be realized in the prior art is practically solved.
As shown in fig. 1 to 3, a circle of flange 14 is provided on the circumferential side of the lid 11 and the circumferential side of the bin 12, a circle of groove 15 is provided on the surface of each of the flanges 14 opposite to each other, and a seal ring 16 is embedded in each of the grooves 15.
After the arrangement mode is adopted, the sealing connection between the sealing cover 11 and the bin body 12 can be ensured, the effective sealing in a high-temperature state can be ensured, the high-temperature liquid is prevented from entering the heating cavity 13 to influence the detection result, and the detected instrument can be protected from being corroded by the high-temperature liquid and damaged.
As shown in fig. 1 and 2, the heat-insulating and pressure-transmitting pipe 30 includes a first pipe section 31, a second pipe section 32 and a third pipe section 33 which are connected and communicated in sequence; the first pipe section 31 is connected and communicated with the air guide port 111; the second pipe section 32 is arranged in the balanced cooling isolation bin 20, and the second pipe section 32 is spirally arranged; the third pipe section 33 is arranged outside the balanced cooling isolation bin 20, and the third pipe section 33 is used for being connected with a reference pressure gauge.
Due to the helical arrangement of the second tube section 32, a sufficient length of the second tube section 32 is ensured, thereby providing sufficient time for the conversion of the high temperature pressure into the low temperature pressure.
Preferably, the loading bin 10 is a loading bin 10 made of copper.
The use of copper loading compartments 10 has the advantage of enhanced thermal conductivity, providing an important benefit for rapid temperature regulation within the heating chamber 13.
As shown in fig. 4, the pressure measuring apparatus further includes a control host 60, wherein the control host 60 wirelessly transmits signals with the temperature regulating unit 40 and the pressure regulating unit 50, and the control host 60 is used for wirelessly regulating the heating temperature of the temperature regulating unit 40 and the pressure applied by the pressure regulating unit 50.
After the arrangement mode is adopted, the wireless regulation and control of temperature and pressure are realized; specifically, the control host 60 is provided with a software control function, and can realize quick and effective accurate control of temperature and pressure through a wireless transmission function, and can perform temperature and pressure compensation in real time to achieve high-precision pressure and stable temperature control. Software can be compiled based on LabVIEW, a flow chart is actually compiled by adopting a special wireless recording system, the system software divides events into 6 events of executing test, waveform display, list display, pause, calibration and exiting the system, the 6 events are arranged in a queue in an element listing mode to circularly scan the events, the respective executing contents of the 6 events, serial port configuration parameters and an initialized waveform chart are initialized, a merged data cluster of a historical import TDMS file is initialized, the executing test program of each path of serial port is responsible for processing decoded data of signals and displaying the decoded data as the waveform chart, and the functions of initializing serial port control, disabling a control, starting the control, opening the historical TDMS file, closing the file, waiting, saving each path of the historical data TDMS file, importing the historical data display, closing the serial port and resetting the maximum value are added. The software can record and analyze temperature parameters through high-speed data acquisition. Setting a serial port configuration parameter: com port, baud rate, check bit, data frame size and character string length sampled every time, the channel signals collected in real time are connected through a serial port, and the channel signals are decoded into signals to be output through deleting check codes and processing character strings, and have the functions of maximum indication value display and maximum indication value zero clearing. Each path of data is stored in an array with the size of 1000 through stacking and is displayed by using a wave chart. The system software stores the real-time data into a specific TDMS file through a TDMS file reading method, and can be used for exporting the historical curve. And possess the wireless transmission function, can guarantee sufficient safe distance when the high temperature is traced to the source and carry out the work of tracing to the source, can also effectively prevent accident to measurement personnel's injury under the condition of the degree of accuracy of guaranteeing to trace to the source.
As shown in fig. 1, 2 and 4, the temperature regulation unit 40 includes a heater 41, a temperature sensor 42 and a heating controller 43; the heater 41 is connected with the heating port 121; the temperature sensor 42 is used for detecting the temperature of the heating cavity 13; the heating controller 43 and the control host 60 are in wireless signal transmission, and the heating controller 43 is used for regulating and controlling the heating state of the heater 41 according to the detected temperature result.
For example, when the temperature sensor 42 detects that the temperature inside the heating chamber 13 is too low, the heating controller 43 may control the heater 41 to increase the heating value, and when the temperature inside the heating chamber 13 is detected to be too high, the heating controller 43 may control the heater 41 to decrease the heating value; and the temperature information measured by the temperature sensor 42 can be sent to the control host 60 for displaying, so that the tester can manually regulate and control the temperature according to the requirement, thereby meeting various practical requirements.
As shown in fig. 1, 2 and 4, the pressure regulating unit 50 includes a pressurizer 51, a pressure sensor 52 and a pressurization controller 53; the pressurizer 51 is connected with the pressurizing port 112; the pressure sensor 52 is used for detecting the pressure of the heating chamber 13; the pressurizing controller 53 is in wireless signal transmission with the control host 60, and the pressurizing controller 53 is used for regulating and controlling the pressurizing state of the pressurizer 51 according to the detected pressure result.
For example, when the pressure sensor 52 detects that the pressure in the heating chamber 13 is too low, the pressurization controller 53 may control the pressurizer 51 to increase the pressure, and when the pressure in the heating chamber 13 is detected to be too high, the pressurization controller 53 may control the pressurizer 51 to decrease the pressure; and the pressure information measured by the pressure sensor 52 can be sent to the control host 60 for displaying, so that the tester can manually regulate and control the pressure according to the requirement, thereby meeting various practical requirements.
As shown in fig. 1 and 2, the end of the heat-insulating pressure-transmitting pipe 30 for connecting to the reference pressure gauge is provided with a sub-loading chamber 70, the structure of the sub-loading chamber 70 is the same as that of the loading chamber, and the sub-loading chamber 70 is used for loading the reference pressure gauge.
After the arrangement mode is adopted, the reference pressure gauge can be conveniently and hermetically placed in the auxiliary loading bin 70, and therefore the source tracing accuracy is improved.
In this embodiment, it is preferable that the temperature control unit is connected to the loading chamber and the sub-loading chamber 70 in the same manner for control, and the pressure control unit is connected to the loading chamber and the sub-loading chamber 70 in the same manner for control, so that the reference pressure gauge can be conveniently controlled in the environment under special conditions to meet the requirements of various experimental tests.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model.
Claims (10)
1. A pressure measuring device under the high temperature state of gas is characterized in that,
the device comprises a loading bin, a balanced cooling isolation bin, a heat insulation pressure transmission pipe, a temperature regulation unit and a pressure regulation unit;
the loading bin comprises a sealing cover and a bin body, the sealing cover and the bin body are enclosed to form a heating cavity, the sealing cover is provided with an air guide opening and a pressurizing opening, the air guide opening and the pressurizing opening are both communicated with the heating cavity, the bin body is provided with a heating opening, and the heating opening is communicated with the heating cavity;
the balance cooling isolation bin is internally filled with cooling liquid;
the heat insulation and pressure transmission pipe penetrates through the balance cooling isolation bin to be soaked in the cooling liquid; one end of the heat insulation and pressure transmission pipe is connected and conducted with the air guide port, and the other end of the heat insulation and pressure transmission pipe is used for being connected with a reference pressure gauge;
the temperature regulating unit is connected with the heating port and is used for monitoring the temperature in the heating cavity and regulating the temperature in the heating cavity to a preset value;
the pressure regulating and controlling unit is connected with the pressurizing port and used for monitoring the pressure in the heating cavity and regulating and controlling the pressure in the heating cavity to a preset value.
2. The pressure measuring device of claim 1, wherein a ring of flanges is disposed around the cover and a ring of grooves is disposed around the cartridge body, and a sealing ring is embedded in each of the grooves.
3. Pressure measuring device according to claim 1,
the heat insulation pressure transmission pipe comprises a first pipe section, a second pipe section and a third pipe section which are sequentially connected and communicated;
the first pipe section is connected and communicated with the air guide port;
the second pipe section is arranged in the balanced cooling isolation bin and is spirally arranged;
the third pipe section is arranged outside the balance cooling isolation bin and is used for being connected with the reference pressure gauge.
4. The pressure measurement device of claim 1, wherein the loading bay is a copper loading bay.
5. The pressure measurement device of claim 1, further comprising a control host, wherein the control host wirelessly transmits signals to the temperature control unit and the pressure control unit, and the control host is configured to wirelessly control the heating temperature of the temperature control unit and the pressure applied by the pressure control unit.
6. Pressure measuring device according to claim 5,
the temperature regulation and control unit comprises a heater, a temperature sensor and a heating controller;
the heater is connected with the heating port;
the temperature sensor is used for detecting the temperature of the heating cavity;
the heating controller is in wireless signal transmission with the control host, and the heating controller is used for regulating and controlling the heating state of the heater according to the detected temperature result.
7. Pressure measuring device according to claim 5,
the pressure regulating and controlling unit comprises a pressurizer, a pressure sensor and a pressurization controller;
the pressurizer is connected with the pressurizing port;
the pressure sensor is used for detecting the pressure of the heating cavity;
the pressurization controller is in wireless signal transmission with the control host, and the pressurization controller is used for regulating and controlling the pressurization state of the pressurizer according to the detected pressure result.
8. The pressure measuring device of claim 1, wherein the end of the heat-insulating pressure-transmitting pipe for connecting with the reference pressure gauge is provided with a sub-loading bin, the structure of the sub-loading bin is the same as that of the loading bin, and the sub-loading bin is used for loading the reference pressure gauge.
9. The pressure measuring device of claim 8, wherein the temperature regulating unit is connected with the loading bin and the auxiliary loading bin in the same manner.
10. The pressure measuring device of claim 8, wherein the pressure regulating unit is connected with the loading bin and the auxiliary loading bin in the same manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121628425.9U CN215573558U (en) | 2021-07-16 | 2021-07-16 | Pressure measuring device under gaseous high temperature state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121628425.9U CN215573558U (en) | 2021-07-16 | 2021-07-16 | Pressure measuring device under gaseous high temperature state |
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| Publication Number | Publication Date |
|---|---|
| CN215573558U true CN215573558U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121628425.9U Active CN215573558U (en) | 2021-07-16 | 2021-07-16 | Pressure measuring device under gaseous high temperature state |
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| CN (1) | CN215573558U (en) |
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- 2021-07-16 CN CN202121628425.9U patent/CN215573558U/en active Active
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