CN217206826U - Vacuum system with self-protection function - Google Patents
Vacuum system with self-protection function Download PDFInfo
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- CN217206826U CN217206826U CN202220894344.1U CN202220894344U CN217206826U CN 217206826 U CN217206826 U CN 217206826U CN 202220894344 U CN202220894344 U CN 202220894344U CN 217206826 U CN217206826 U CN 217206826U
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- vacuum
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- self
- vacuum pump
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses a vacuum system with oneself's protection, it is including the vacuum cavity, the vacuum pump, the vacuometer, industrial computer and relay, the input and the commercial power connection of relay, the output of relay is connected with the power cord of vacuum pump, the air inlet of vacuum pump passes through the pipeline and is connected with the vacuum cavity, the vacuometer is used for detecting the vacuum of vacuum cavity and sends the testing result for the industrial computer, the industrial computer is according to the action of the vacuum control relay of vacuum cavity, when the vacuum of vacuum cavity is greater than the setting value, industrial computer control relay becomes the disconnection by switching on. The utility model discloses a but the vacuum of vacuum gauge real-time supervision vacuum cavity to opening through opening of relay control vacuum pump, when the vacuum cavity took place to leak gas and leads to vacuum to be greater than the setting value, industrial control unit control relay becomes the disconnection by switching on, stops to the vacuum pump power supply, and the self-closing vacuum pump both can guarantee the vacuum pump life-span, also can guarantee the reliability of data.
Description
Technical Field
The utility model relates to a vacuum insulation technical field especially relates to a vacuum system with oneself's protection.
Background
The vacuum insulation technology is that heat is conducted in a vacuum cavity in a direct contact mode between objects, and because the two objects are in a vacuum environment and do not need to resist heat (cold) of outside air, the efficiency of heat transfer in the vacuum cavity is higher than that in the atmosphere. One of the key points of the vacuum insulation technology is to maintain a relatively low degree of vacuum inside the chamber by using a vacuum pump to evacuate the gas inside the chamber. The vacuum pump is one of the core components constituting the vacuum insulation system.
At present, commercial vacuum pumps are mainly self-protected by measuring the temperature of a motor, and even partial vacuum pumps do not have self-protection functions. Carry out the vacuum pump of self-protection through measuring motor temperature, when connecting the cavity and appearing leaking gas, the motor lasts high-power work and will lead to the temperature to rise, just forces to stop the vacuum pump when generating heat to the assigned temperature. This not only has a significant impact on vacuum pump life, but also the data tested under low vacuum can be distorted.
Disclosure of Invention
The utility model aims to solve the technical problem that a vacuum system with oneself's protection is provided.
In order to solve the technical problem, the utility model discloses a as follows technical scheme:
the utility model provides a vacuum system with self-protection, it is including the vacuum cavity, the vacuum pump, the vacuometer, industrial computer and relay, the input and the commercial power connection of relay, the output of relay is connected with the power cord of vacuum pump, the air inlet of vacuum pump passes through the pipeline and is connected with the vacuum cavity, the vacuometer is used for detecting the vacuum degree of vacuum cavity and sends the testing result for the industrial computer, the action of industrial computer according to the vacuum degree control relay of vacuum cavity, when the vacuum degree of vacuum cavity is greater than the setting value, industrial computer control relay becomes the disconnection by switching on, in order to close the vacuum pump.
Preferably, the vacuum gauge includes a vacuum sensor for detecting a vacuum degree of the vacuum chamber and a vacuum degree display for displaying the vacuum degree of the vacuum chamber in real time.
Preferably, the inlet of the vacuum pump is connected to the vacuum chamber through 1/4PTFE tubing.
Preferably, the vacuum system with self-protection further comprises a metal T-shaped tee joint, and three interfaces of the metal T-shaped tee joint are respectively connected with the air inlet of the vacuum pump, the vacuum cavity and the vacuum gauge in a one-to-one correspondence mode through 1/4PTFE pipes.
Preferably, the vacuum gauge is connected with the industrial personal computer through a DB-9 serial port line, and the vacuum gauge and the industrial personal computer are communicated through a Modbus Rtu protocol.
Preferably, the industrial personal computer is connected with the relay through a DB-9 serial port line, and the industrial personal computer controls the starting and stopping of the relay through a Modbus Rtu protocol.
The utility model has the advantages of: the vacuum system with self-protection can monitor the vacuum degree of the vacuum cavity in real time through the vacuum gauge, the relay controls the vacuum pump to be started or stopped, when the vacuum cavity leaks air to cause the vacuum degree to be larger than a set value, the industrial personal computer controls the relay to be turned off after being turned on, power supply to the vacuum pump is stopped, the vacuum pump is automatically closed, the service life of the vacuum pump can be guaranteed, and the reliability of data can also be guaranteed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments 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 these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a vacuum system with self-protection according to the present invention.
Reference numerals
10, a vacuum cavity; 20 a vacuum pump; 30 relays; 40 a vacuum gauge; 50 industrial personal computers; 60 metal T-shaped tee.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples. Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
As shown in fig. 1, in the utility model discloses an embodiment, vacuum system with self-protection is including vacuum cavity 10, vacuum pump 20, vacuum gauge 40, industrial computer 50 and relay 30, relay 30's input and 220V mains connection, relay 30's output and vacuum pump 20's power cord are connected, vacuum pump 20's air inlet passes through the pipeline and is connected with vacuum cavity 10, vacuum gauge 40 is used for detecting vacuum cavity 10's vacuum and sends the testing result for industrial computer 50, industrial computer 50 is according to vacuum control relay 30's of vacuum cavity 10 action, when vacuum cavity 10 is greater than the setting value, industrial computer 50 control relay 30 becomes the disconnection by switching on.
The vacuum gauge 40 includes a vacuum sensor 41 for detecting the degree of vacuum of the vacuum chamber 10 and a vacuum degree display 42 for displaying the degree of vacuum of the vacuum chamber 10 in real time.
In this embodiment, the vacuum gauge 40 is connected with the industrial personal computer 50 through a DB-9 serial port line, and the two are communicated through a Modbus Rtu protocol, so that the industrial personal computer 50 can obtain vacuum degree data of the vacuum cavity 10 in real time; in other embodiments, the vacuum gauge 40 and the industrial personal computer 50 may be communicatively coupled via other types of serial lines, such as RS-485.
In this embodiment, the industrial personal computer 50 is connected with the relay 30 through a DB-9 serial line, and the industrial personal computer 50 controls the start and stop of the relay 30 through a Modbus Rtu protocol; in other embodiments, the industrial personal computer 50 and the relay 30 can be communicatively connected through other types of serial lines such as RS-485.
In this embodiment, the vacuum system with self-protection further includes a metal T-shaped tee 60, the vacuum chamber 10 is provided with an external interface, and three interfaces of the metal T-shaped tee 60 are respectively connected with the air inlet of the vacuum pump 20, the external interface of the vacuum chamber 10 and the detection port of the vacuum gauge 40 in a one-to-one correspondence manner through 1/4PTFE (Polytetrafluoroethylene) tubes. Of course, in other embodiments, the vacuum chamber 10 may be provided with 2 external interfaces, one external interface of the vacuum chamber 10 is connected to the air inlet of the vacuum pump 20 through 1/4PTFE tube, and the other external interface of the vacuum chamber 10 is connected to the detection port of the vacuum gauge 40 through 1/4PTFE tube.
The utility model discloses a vacuum system during operation with oneself's protection, through the vacuum of vacuum gauge 40 real-time supervision vacuum cavity 10 to open through opening of relay 30 control vacuum pump 20. When the vacuum degree of the vacuum cavity 10 is smaller than a set value (the value is set according to actual needs), the working state of the relay 30 is a conduction state, and the vacuum pump 20 continuously works; when the vacuum degree is larger than the set value due to air leakage of the vacuum cavity 10, the industrial personal computer 50 sends a relay disconnection instruction to the relay 30, controls the working state of the relay 30 to be changed from a conduction state to a disconnection state, and stops supplying power to the vacuum pump 20, so that the function of protecting the vacuum pump 20 is achieved.
The foregoing is considered as illustrative of the preferred embodiments of the invention and is not intended to limit the invention in any way. Various equivalent changes and modifications can be made on the basis of the above embodiments by those skilled in the art, and all equivalent changes and modifications within the scope of the claims should fall within the protection scope of the present invention.
Claims (6)
1. A vacuum system with self-protection, characterized by: vacuum system with self-protection is including the vacuum cavity, the vacuum pump, the vacuometer, industrial computer and relay, the input and the commercial power connection of relay, the output and the power cord of vacuum pump of relay are connected, the air inlet of vacuum pump passes through the pipeline and is connected with the vacuum cavity, the vacuometer is used for detecting the vacuum degree of vacuum cavity and sends the testing result for the industrial computer, the action of industrial computer control relay according to the vacuum degree of vacuum cavity, when the vacuum degree of vacuum cavity is greater than the setting value, industrial computer control relay becomes the disconnection by switching on, in order to close the vacuum pump.
2. The self-protecting vacuum system as claimed in claim 1, wherein: the vacuum gauge comprises a vacuum sensor for detecting the vacuum degree of the vacuum cavity and a vacuum degree display for displaying the vacuum degree of the vacuum cavity in real time.
3. The self-protecting vacuum system as claimed in claim 2, wherein: and the air inlet of the vacuum pump is connected with the vacuum cavity through an 1/4PTFE pipe.
4. The self-protecting vacuum system as claimed in claim 3, wherein: the vacuum system with self protection also comprises a metal T-shaped tee joint, and three interfaces of the metal T-shaped tee joint are respectively connected with the air inlet of the vacuum pump, the vacuum cavity and the vacuum gauge in a one-to-one correspondence manner through 1/4PTFE pipes.
5. The self-protecting vacuum system as claimed in claim 4, wherein: the vacuum gauge is connected with the industrial personal computer through a DB-9 serial port line, and the vacuum gauge and the industrial personal computer are communicated through a Modbus Rtu protocol.
6. The self-protecting vacuum system as claimed in claim 4, wherein: the industrial personal computer is connected with the relay through a DB-9 serial port line and controls the starting and stopping of the relay through a Modbus Rtu protocol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220894344.1U CN217206826U (en) | 2022-04-18 | 2022-04-18 | Vacuum system with self-protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220894344.1U CN217206826U (en) | 2022-04-18 | 2022-04-18 | Vacuum system with self-protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217206826U true CN217206826U (en) | 2022-08-16 |
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ID=82774484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220894344.1U Active CN217206826U (en) | 2022-04-18 | 2022-04-18 | Vacuum system with self-protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217206826U (en) |
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2022
- 2022-04-18 CN CN202220894344.1U patent/CN217206826U/en active Active
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