CN111443282A - Pressure device service life detection device and method - Google Patents
Pressure device service life detection device and method Download PDFInfo
- Publication number
- CN111443282A CN111443282A CN202010312147.XA CN202010312147A CN111443282A CN 111443282 A CN111443282 A CN 111443282A CN 202010312147 A CN202010312147 A CN 202010312147A CN 111443282 A CN111443282 A CN 111443282A
- Authority
- CN
- China
- Prior art keywords
- pressure
- piece
- control unit
- detected
- circuit control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/007—Malfunction diagnosis, i.e. diagnosing a sensor defect
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The invention relates to a device and a method for detecting the service life of a pressure device, which relate to the technical field of air conditioner detection and are used for monitoring the running condition of a pressure switch in real time so as to improve the detection efficiency and the detection reliability. The pressure device service life detection device comprises a pressure source, a circuit control unit and a detection unit, and the detection unit is used for monitoring the to-be-detected piece and can replace manual operation for detecting the service life of a pressure switch, so that when the to-be-detected piece is subjected to long-term operation tests by applying different currents, pressures and on-off time, the operation condition of the to-be-detected piece can be monitored in real time, the detection precision and the detection efficiency are obviously improved compared with manual operation, and the labor intensity is also obviously reduced.
Description
Technical Field
The invention relates to the technical field of air conditioner detection, in particular to a device and a method for detecting the service life of a pressure device.
Background
Pressure devices, such as a pressure switch of an air conditioner, are used as parts for detecting the pressure of an air conditioner pipeline, have irreplaceable effects on the pressure detection of an air conditioner refrigerant, and once the pressure switch fails, errors are caused in the operation judgment of the air conditioner, so that the quality diagnosis and analysis after sale are influenced.
The main content of the long-term service life detection of the existing pressure switch is as follows: different load currents of 1A, 2A or 3A and the like, different pressures and different on-off time (for example, 1s on and 9s off) are applied to the pressure switch, and after 10 ten thousand times of repetition, whether the pressure switch has a fault or not is manually checked. Therefore, the service life test of the pressure switch at present mainly depends on manual operation, so that the operation condition of the pressure switch cannot be monitored in real time, and the problems of low detection precision, high labor intensity, low detection efficiency and the like exist, so that a pressure switch long-term service life detection device is urgently needed to replace manual detection so as to improve the detection efficiency and the detection reliability.
Disclosure of Invention
The invention provides a device and a method for detecting the service life of a pressure device, which are used for monitoring the operation condition of a pressure switch in real time so as to improve the detection efficiency and the detection reliability.
According to a first aspect of the present invention, there is provided a pressure device life detection apparatus comprising:
the pressure source is connected with the piece to be detected and used for controlling the on-off of the piece to be detected;
the circuit control unit is electrically connected with the piece to be detected and used for adjusting input parameters applied to the piece to be detected; the circuit control unit is also electrically connected with the pressure source to control the start and stop of the pressure source; and
and the detection unit is respectively and electrically connected with the piece to be detected and the circuit control unit, and is used for respectively monitoring the running information of each piece to be detected in real time and feeding back the running information to the circuit control unit.
In one embodiment, the detection unit includes:
the pressure detection unit is used for detecting a first pressure sensor of the output pressure of the pressure source, and the first pressure sensor is connected with the circuit control unit;
the second pressure sensor is used for detecting the pressure of the piece to be detected, and the second pressure sensor is connected with the circuit control unit so as to feed back the pressure of the piece to be detected to the circuit control unit; and
the circuit detection unit is used for detecting the circuit on-off of the piece to be detected and feeding back the circuit on-off of the piece to be detected to the circuit control unit;
the circuit detection unit comprises a first circuit on-off detection module integrated in the circuit control unit; or a second circuit on-off detection module which is independent of the circuit control unit and is electrically connected with the circuit control unit.
In one embodiment, the input parameter comprises a preset pressure;
an electromagnetic pressure regulating valve is connected between the to-be-detected element and the pressure source, and if the difference value between the pressure value output by the pressure source and the preset pressure, which is obtained by the first pressure sensor, is within a set range, the circuit control unit controls the electromagnetic pressure regulating valve to operate so as to regulate the pressure value output by the pressure source to the preset pressure.
In one embodiment, the device further comprises a connecting unit, and the to-be-tested piece is connected with the circuit control unit through the connecting unit;
the connection unit includes:
the wire holder is electrically connected with the circuit control unit and is electrically connected with the piece to be tested through a power line so as to enable the piece to be tested to be conducted with the circuit control unit; and
and the connector is respectively connected with the piece to be detected and the pressure source.
In one embodiment, the input parameter further comprises a preset current;
the circuit control unit comprises a plurality of loads connected in series and/or in parallel, and different preset currents are applied to the piece to be tested by changing the connection mode among the plurality of loads.
In one embodiment, the input parameters further include preset detection times and preset on-off times thereof.
In one embodiment, the circuit control unit judges whether the piece to be detected operates normally according to the operation information of the piece to be detected fed back by the detection unit, and if not, the circuit control unit stops detection and gives an alarm
In one embodiment, the detection device further comprises a box body, and the connecting unit, the circuit control unit and the detection unit are all arranged in the box body;
the box body is also provided with an input unit and a display unit, and the input unit and the display unit are both electrically connected with the circuit control unit;
the input unit is used for transmitting the input parameters of the piece to be tested to the circuit control unit;
the display unit is used for displaying the running information of the piece to be detected, and the running information comprises the pressure of the piece to be detected, the current of the piece to be detected, the detection times of the piece to be detected, the action times of the piece to be detected and the non-connection abnormal difference value of the piece to be detected.
In one embodiment, a box door is arranged on the front side of the box body, a rear cover plate which can be opened or closed is arranged on the rear side of the box body, and a left side plate which can be opened or closed is arranged on the left side of the box body.
According to a second aspect of the present invention, the present invention provides a method for detecting the lifetime of a pressure device by using the above apparatus for detecting the lifetime of a pressure device, comprising the following steps:
communicating a pressure source with a part to be tested to provide pressure to the part to be tested;
communicating the piece to be tested with a circuit control unit through a connecting unit so as to apply input parameters to the piece to be tested;
enabling a pressure detection unit in the detection unit to detect the pressure value output by the pressure source and feed back the pressure value to the circuit control unit;
the circuit control unit judges whether the pressure value output by the pressure source and the preset pressure are in a set range or not; if so, operating an electromagnetic pressure regulating valve between the pressure source and the piece to be tested to regulate the pressure value output by the pressure source to the preset pressure;
enabling a circuit detection unit in the detection unit to detect the circuit on-off operation information of the piece to be detected; feeding back the on-off operation information of the circuit to the circuit control unit and displaying the on-off operation information on a display unit;
and judging whether the unconnected abnormal difference value of the piece to be detected reaches the set times, if so, stopping detection.
Compared with the prior art, the invention has the advantages that:
(1) the detection unit can be used for monitoring the to-be-detected piece to replace manual operation for detecting the service life of the pressure switch, so that when different currents, pressures and on-off time are applied to the to-be-detected piece to perform long-term operation tests, the operation condition of the to-be-detected piece can be monitored in real time, the detection precision is improved, the detection efficiency is obviously improved compared with manual operation, and the labor intensity is obviously reduced.
(2) The detection means for the piece to be detected is enriched and perfected, the service life quality of the piece to be detected is evaluated through long-term operation, and the product quality can be improved.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a pressure device life detection apparatus in an embodiment of the present invention, as viewed from the front side;
FIG. 2 is an enlarged view at A in FIG. 1;
fig. 3 is a schematic structural view of the pressure device life detection apparatus in the embodiment of the present invention, as viewed from the left side;
FIG. 4 is a schematic structural view of a pressure device life detection apparatus viewed from the rear side in an embodiment of the present invention;
FIG. 5 is a flowchart illustrating the operation of the interface of the display unit of the pressure device life detection apparatus according to the embodiment of the present invention;
fig. 6 is a flowchart of a pressure device lifetime detection method in an embodiment of the present invention.
Reference numerals:
1-a display unit; 2-stop indicator light; 3-running indicator light; 4-power indicator light; 5-an alarm lamp; 6-stop button; 7-run button; 8-power button; 9-emergency stop switch; 10-a box body; 11-a box door; 12-a connector; 13-a wire holder; 14-a piece to be tested; 15-power supply line; 16-left side panel; 17-a switching power supply; 18-a circuit control unit; 19-load; 20-an electromagnetic pressure regulating valve; 21-a rear cover plate; 22-a pressure source; 23-a first pressure sensor; 24-a second pressure sensor; 25-a linking unit; 26-voltage or current collection module.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 to 5, according to a first aspect of the present invention, the present invention provides a pressure device life detection apparatus, in particular, an air conditioner pressure switch long-term life detection apparatus. Specifically, the pressure device life detection device, hereinafter simply referred to as a device, of the present invention includes a case 10, in which a device under test 14, a circuit control unit 18, a pressure source 22 and a detection unit are disposed in the case 10.
The device under test 14 may be a pressure device such as a pressure switch.
The pressure source 22 is connected to the to-be-detected element 14 and is configured to control on/off of the to-be-detected element 14, and the pressure source 22 may be a pressure pump or a booster pump, and controls on/off of air pressure of the to-be-detected element 14 by starting and stopping the pressure pump or the booster pump.
The circuit control unit 18 is electrically connected to the pressure source 22 and the device under test 14, respectively. The to-be-tested piece 14 is connected with the circuit control unit 18 through the connection unit 25, the circuit control unit 18 can adjust input parameters applied to the to-be-tested piece 14, and the circuit control unit 18 can also control the start and stop of the pressure source 22 so as to control the on and off of the to-be-tested piece 14. Meanwhile, the on-off signal of the piece to be measured 14 is fed back to the circuit control unit 18 to record the on-off times of the piece to be measured 14.
The detection unit is respectively connected with the piece to be detected 14 and the circuit control unit 18, and the detection unit respectively monitors the operation information of each piece to be detected 14 in real time and feeds the operation information back to the circuit control unit 18. The real-time monitoring of the detecting unit on the piece to be detected 14 can replace manual detection, and the detection efficiency and the detection reliability are improved. When different currents, pressures and on-off time are applied to the piece to be tested 14 for long-term operation test, the operation condition of the piece to be tested 14 can be monitored in real time, so that the quality of the piece to be tested 14 can be analyzed and corrected conveniently.
In addition, because the detecting unit monitors the operation of each piece to be tested 14, the real-time monitoring and the independent control of each piece to be tested 14 can be realized, the phenomenon that invalid personnel cannot find in time in the pressure switch test process can be prevented, and the situation that the test process is not controlled is avoided.
The invention will be described in detail below by taking the device under test 14 as a pressure switch as an example.
The input parameters applied to the test piece 14 include a predetermined pressure applied to the test piece 14.
The detection unit can monitor the operation pressure and the circuit operation information of the piece to be detected 14 in real time, and particularly comprises a pressure detection unit and a circuit detection unit.
Wherein the pressure detection unit comprises a first pressure sensor 23 for detecting the output pressure of the pressure source 22 and a second pressure sensor 24 for detecting the pressure of the to-be-detected piece 14. Wherein the first pressure sensor 23 is connected to the circuit control unit 18, and the second pressure sensor 24 is connected to the circuit control unit 18 to feed back the pressure of the device under test 14 to the circuit control unit 18.
The first pressure sensor 23 detects the output pressure of the pressure source 22, thereby preventing the overload operation and performing high-pressure protection. The second pressure sensor 24 is a precision pressure sensor.
In order to meet the requirements of adjustable pressure and accurate control, the electromagnetic pressure regulating valve 20 is adopted to realize accurate regulation of the pressure. Specifically, the electromagnetic pressure regulating valve 20 is connected between the device under test 14 and the pressure source 22, and if the difference between the pressure value output by the pressure source 22 and the preset pressure obtained by the first pressure sensor 23 is within a set range, that is, the pressure value output by the pressure source 22 is close to the preset pressure, the circuit control unit controls the electromagnetic pressure regulating valve 20 to operate to regulate the pressure value output by the pressure source 22 to the preset pressure. If the difference between the pressure value output by the pressure source 22 and the preset pressure obtained by the first pressure sensor 23 is not within the set range, that is, the pressure value output by the pressure source 22 is far different from the preset pressure, the pressure source 22 continues to operate to meet the requirement of the preset pressure.
The circuit detection unit is used for detecting the circuit on-off of the piece to be detected 14 and feeding back the circuit on-off of the piece to be detected 14 to the circuit control unit 18.
Alternatively, the circuit detecting unit may be a first circuit on-off detecting module integrated in the circuit control unit 18; in other words, the circuit control unit 18 has self-test on-off capability.
Alternatively, the circuit detection unit may be a second circuit on-off detection module that is independent of the circuit control unit and electrically connected to the circuit control unit.
The first and second circuit on-off detection modules may be voltage or current acquisition modules 26 capable of detecting the on-off of the voltage or current of the dut 14. The voltage or current collecting module 26 is connected to the circuit control unit 18 to feed back a circuit on-off signal of the device under test 14 to the circuit control unit 18.
The input parameters applied to the device under test 14 include a preset current applied to the device under test 14, and the preset current may be different load currents such as 2A or 3A.
As shown in fig. 2, the connection unit 25 includes a wire holder 13 and a connection header 12.
The wire holder 13 is electrically connected to the circuit control unit, and the wire holder 13 is electrically connected to the device under test 14 through a power line 15, so that the device under test 14 is electrically connected to the circuit control unit. Specifically, one of the metal plug ends of the device under test 14 is connected to one end of the power line 15, and the other end of the power line 15 is connected to the wire holder 13, that is, the metal plug end of the pressure switch 14 is electrically connected to the wire holder 13 through the power line 15.
The connector 12 is connected to the device under test 14 and the pressure source 22, respectively. Specifically, the copper tube connecting end of the to-be-tested piece 14 is connected to the connector 12, and the other end of the connector 12 is connected to the air tube of the pressure source 22, so that the pressure source 22 introduces compressed air into the to-be-tested piece 14.
The circuit control unit 18 includes a plurality of loads 19 connected in series and/or in parallel, and applies different preset currents to the device under test 14 by changing the connection manner of the plurality of loads 19.
In some embodiments, the load 19 may be a metal resistor with different resistance values and good heat dissipation performance, and different preset currents may be switched by changing the serial and/or parallel connection manner and changing the conducting amount.
In addition, the input parameters applied to the piece to be detected 14 further include preset detection times and preset on-off times applied to the piece to be detected 14.
In some embodiments, the box 10 is further provided with an input unit and a display unit 1, and the input unit and the display unit 1 are both electrically connected with the circuit control unit 18. The input unit and the display unit 1 may be a touch display screen. Human-computer interaction communication is achieved through the touch display screen, so that input parameters such as current, test times, test pressure, on-off time and the like are transmitted to the circuit control unit 18 through the touch display screen to serve as input signals.
The input unit is used for transmitting input parameters of the piece to be tested 14 to the circuit control unit; in order to meet the requirement of monitoring the running condition of the piece to be detected 14 in real time, the display unit displays the running information of the piece to be detected 14 in real time. The operation information includes the pressure of the object 14, the current of the object 14, the number of times of detection of the object 14, the number of times of operation of the object 14, and the non-connection abnormality difference of the object 14. The non-connection abnormal difference of the to-be-measured object 14 indicates the number of times of the non-normal connection work of the to-be-measured object 14, and may be set according to a user requirement, for example, the non-connection time is 1 time, or 2 times, or 3 times.
The circuit control unit 18 judges whether the piece to be detected 14 operates normally according to the operation information of the piece to be detected 14 fed back by the detection unit, and if not, the detection is stopped and an alarm is given. For example, the judgment can be performed according to the circuit on-off operation information of the to-be-detected piece fed back by the circuit detection unit. Specifically, the circuit control unit 18 may determine whether the to-be-tested object 14 operates normally according to the non-connection abnormal difference of the to-be-tested object 14, and if the non-connection abnormal difference of the to-be-tested object 14 reaches the preset number of times, the apparatus alarms and stops.
The cabinet 10 is provided at a front side thereof with a door 11, and as shown in fig. 1, the link unit 25 is provided at the front side of the cabinet 10, so that the work to be performed on the object 14, such as replacement or maintenance, can be conveniently performed by opening the door 11.
The case 10 is provided at a rear side thereof with a rear cover 21 which can be opened or closed, the electromagnetic pressure regulating valve 20 and the second pressure sensor 24 are provided at a rear side of the case 10, and the electromagnetic pressure regulating valve 20 and the second pressure sensor 24 can be operated by opening the rear cover 21. In addition, a pressure source 22 is also provided on the rear side of the case 10.
The left side of the case 10 is provided with a left side plate 16 that can be opened or closed, the switching power supply 17, the circuit control unit 18, and the load 19 are provided on the left side of the case 10, the switching power supply 17 supplies power to a control circuit of the device, the circuit control unit 18 may be P L C that controls the device and performs operations such as signal processing, and the like, and the above-described components can be operated by opening the left side plate 16.
As shown in fig. 1, a row of indicator lamps including a stop indicator lamp 2, an operation indicator lamp 3, a power indicator lamp 4, and a warning lamp 5 are provided on a cabinet 10 below a display unit 1. Below the indicator lamp are arranged control buttons comprising a stop button 6, a run button 7, a power button 8 and an emergency stop switch 9.
As shown in fig. 6, according to a second aspect of the present invention, the present invention provides a method for detecting the lifetime of a pressure device by using the above apparatus for detecting the lifetime of a pressure device, comprising the following steps:
firstly, inputting input parameters such as preset detection times, preset current, preset pressure, preset on-off time, test group number (A, B, C, D groups) and the like into a touch display screen, starting an operation button 7 after the input parameters are finished, and starting an operation test of the device.
In a second step, the circuit control unit 18 is operated, and the circuit control unit 18 receives an instruction to touch the display screen, and operates the pressure source 22 to compress air.
In a third step, a pressure source 22 is placed in communication with the test object 14 to provide pressure to the test object 14.
Fourth, the device under test 14 is communicated with the circuit control unit 18 through the connection unit 25 to apply the input parameters to the device under test 14.
And fifthly, enabling the pressure detection unit in the detection units to detect the pressure value output by the pressure source 22 and feed back the pressure value to the circuit control unit 18.
The circuit control unit 18 determines whether the pressure value output by the pressure source 22 and the preset pressure are within a set range; if yes, operating the electromagnetic pressure regulating valve 20 between the pressure source 22 and the to-be-measured part 14 to regulate the pressure value output by the pressure source 22 to a preset pressure; if not, then the pressure source 22 continues to operate to meet the pressure requirements.
Sixthly, the circuit control unit 18 controls the required load 19 to be conducted to achieve the set current, so that the to-be-tested piece 14 can operate under pressure and in an electrified mode.
And seventhly, judging whether the unconnected abnormal difference value of the piece to be detected 14 reaches the set times, and if so, stopping detection. The device can alarm and shut down, and the alarm lamp 5 flickers to remind relevant personnel to process.
Eighthly, enabling the circuit detection unit to detect the operation information of the piece to be detected 14; and feeds back the operation information to the circuit control unit 18 and displays the operation information on the display unit 1, thereby completing one pressure on-off detection.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A pressure device life detection apparatus, comprising:
the pressure source is connected with the piece to be detected and used for controlling the on-off of the piece to be detected;
the circuit control unit is electrically connected with the piece to be detected and used for adjusting input parameters applied to the piece to be detected; the circuit control unit is also electrically connected with the pressure source to control the start and stop of the pressure source; and
and the detection unit is respectively and electrically connected with the piece to be detected and the circuit control unit, and is used for respectively monitoring the running information of each piece to be detected in real time and feeding back the running information to the circuit control unit.
2. The pressure device life detection apparatus according to claim 1, wherein the detection unit includes:
the pressure detection unit is used for detecting a first pressure sensor of the output pressure of the pressure source, and the first pressure sensor is connected with the circuit control unit;
the second pressure sensor is used for detecting the pressure of the piece to be detected, and the second pressure sensor is connected with the circuit control unit so as to feed back the pressure of the piece to be detected to the circuit control unit; and
the circuit detection unit is used for detecting the circuit on-off of the piece to be detected and feeding back the circuit on-off of the piece to be detected to the circuit control unit;
the circuit detection unit comprises a first circuit on-off detection module integrated in the circuit control unit; or a second circuit on-off detection module which is independent of the circuit control unit and is electrically connected with the circuit control unit.
3. The pressure device life detection apparatus according to claim 2, wherein the input parameter includes a preset pressure;
an electromagnetic pressure regulating valve is connected between the to-be-detected element and the pressure source, and if the difference value between the pressure value output by the pressure source and the preset pressure, which is obtained by the first pressure sensor, is within a set range, the circuit control unit controls the electromagnetic pressure regulating valve to operate so as to regulate the pressure value output by the pressure source to the preset pressure.
4. The pressure device life detection apparatus according to any one of claims 1 to 3, further comprising a connection unit through which the member to be detected is connected to the circuit control unit;
the connection unit includes:
the wire holder is electrically connected with the circuit control unit and is electrically connected with the piece to be tested through a power line so as to enable the piece to be tested to be conducted with the circuit control unit; and
and the connector is respectively connected with the piece to be detected and the pressure source.
5. A pressure device lifetime detection apparatus according to any of claims 1-3, wherein said input parameters further comprise a preset current;
the circuit control unit comprises a plurality of loads connected in series and/or in parallel, and different preset currents are applied to the piece to be tested by changing the connection mode among the plurality of loads.
6. The pressure device life detection apparatus according to any one of claims 1 to 3, wherein the input parameters further include a preset number of detections and a preset number of on-off times thereof.
7. The pressure device life detection device according to any one of claims 1 to 3, wherein the circuit control unit judges whether the piece to be detected operates normally according to the operation information of the piece to be detected fed back by the detection unit, and if not, stops detection and gives an alarm.
8. The pressure device life detection apparatus according to any one of claims 1 to 3, further comprising a case, wherein the connection unit, the circuit control unit, and the detection unit are all disposed in the case;
the box body is also provided with an input unit and a display unit, and the input unit and the display unit are both electrically connected with the circuit control unit;
the input unit is used for transmitting the input parameters of the piece to be tested to the circuit control unit;
the display unit is used for displaying the running information of the piece to be detected, and the running information comprises the pressure of the piece to be detected, the current of the piece to be detected, the detection times of the piece to be detected, the action times of the piece to be detected and the non-connection abnormal difference value of the piece to be detected.
9. The pressure device life detection apparatus according to claim 8, wherein a door is provided on a front side of the case, a rear cover plate that can be opened or closed is provided on a rear side of the case, and a left side plate that can be opened or closed is provided on a left side of the case.
10. A method for pressure device life detection using the pressure device life detection apparatus according to any one of claims 1 to 9, comprising the steps of:
communicating a pressure source with a part to be tested to provide pressure to the part to be tested;
communicating the piece to be tested with a circuit control unit through a connecting unit so as to apply input parameters to the piece to be tested;
enabling a pressure detection unit in the detection unit to detect the pressure value output by the pressure source and feed back the pressure value to the circuit control unit;
the circuit control unit judges whether the pressure value output by the pressure source and the preset pressure are in a set range or not; if so, operating an electromagnetic pressure regulating valve between the pressure source and the piece to be tested to regulate the pressure value output by the pressure source to the preset pressure;
enabling a circuit detection unit in the detection unit to detect the circuit on-off operation information of the piece to be detected; feeding back the on-off operation information of the circuit to the circuit control unit and displaying the on-off operation information on a display unit;
and judging whether the unconnected abnormal difference value of the piece to be detected reaches a set number of times, if so, stopping detection and giving an alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010312147.XA CN111443282A (en) | 2020-04-20 | 2020-04-20 | Pressure device service life detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010312147.XA CN111443282A (en) | 2020-04-20 | 2020-04-20 | Pressure device service life detection device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111443282A true CN111443282A (en) | 2020-07-24 |
Family
ID=71653493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010312147.XA Pending CN111443282A (en) | 2020-04-20 | 2020-04-20 | Pressure device service life detection device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111443282A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112230135A (en) * | 2020-09-27 | 2021-01-15 | 北京康斯特仪表科技股份有限公司 | Detection method and detection system of multi-contact pressure switch |
-
2020
- 2020-04-20 CN CN202010312147.XA patent/CN111443282A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112230135A (en) * | 2020-09-27 | 2021-01-15 | 北京康斯特仪表科技股份有限公司 | Detection method and detection system of multi-contact pressure switch |
| CN112230135B (en) * | 2020-09-27 | 2023-12-05 | 北京康斯特仪表科技股份有限公司 | Detection method and detection system for multi-contact pressure switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4931738A (en) | Battery monitoring system of cell groups and display | |
| CN111033588B (en) | Control and monitoring module | |
| CN109696628B (en) | Fault detection tool and fault detection method for air conditioner compressor | |
| CN108847078A (en) | A kind of dress table connects electric training system | |
| CN111999090A (en) | Offline detection device and method for vehicle air conditioner | |
| CN111443282A (en) | Pressure device service life detection device and method | |
| CN106405375A (en) | Multipath resistance and voltage testing method, device and system | |
| US7648387B2 (en) | Diagnostic jumper | |
| CN108983110A (en) | A kind of power supply reliability detection system of converter valve monitoring device | |
| CN212391577U (en) | Pressure device life detection device | |
| CN209765017U (en) | Relay detection device and tobacco sheet production system | |
| CN112928820B (en) | Automatic detection system for power distribution cabinet and detection method thereof | |
| DE60305205T2 (en) | DIAGNOSTIC SYSTEM FOR ELECTRIC HOUSEHOLD APPLIANCES | |
| CN106768072B (en) | Comprehensive detection circuit, comprehensive detection system and working method of blower | |
| CN215932724U (en) | Display screen self-checking system and unmanned selling device | |
| CN115047311A (en) | Card full life cycle management method, system, computer product and storage medium | |
| CN208357982U (en) | Electric welding machine Smart Verify debugging apparatus | |
| CN213750118U (en) | Off-line detection device for mosaic of backup disc of master control room | |
| CN105510858A (en) | Inverter static bypass switch voltage monitoring card work performance test system and inverter static bypass switch voltage monitoring card work performance test method | |
| CN206470385U (en) | Portable DC insulation tester test device | |
| CN215116573U (en) | Capacitor aging test system | |
| CN214041629U (en) | Voltage testing jig | |
| CN214097746U (en) | Automatic detection device for high-voltage wire harness | |
| CN216310195U (en) | Detection device and system | |
| CN219456436U (en) | Power failure monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |