CN222196848U - A filling oxygen-depleted device - Google Patents
A filling oxygen-depleted device Download PDFInfo
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- CN222196848U CN222196848U CN202420963543.2U CN202420963543U CN222196848U CN 222196848 U CN222196848 U CN 222196848U CN 202420963543 U CN202420963543 U CN 202420963543U CN 222196848 U CN222196848 U CN 222196848U
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- oxygen
- mixer
- pipe
- buffer tank
- filling
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Abstract
The utility model relates to a filling oxygen-deficient device which comprises a mixer and a buffer tank connected with the mixer through a connecting pipe, wherein a first input pipe and a second input pipe are respectively connected to the mixer, an output pipe is connected to the buffer tank, the first input pipe is used for inputting nitrogen into the mixer, the second input pipe is used for inputting oxygen or air into the mixer, the filling oxygen-deficient device also comprises a first oxygen instrument for monitoring the concentration of oxygen in the mixer, a second oxygen instrument for monitoring the concentration of oxygen in the buffer tank and a control system, and the control system is respectively connected with the first oxygen instrument and the second oxygen instrument through signals. The oxygen concentration content in the mixed gas generated by the filling oxygen-deficient device can be accurately controlled, the mixed gas meeting the requirements of conveying and filling processes is obtained, and the explosion risk and the polymerization inhibitor failure risk caused by the too high or too low oxygen concentration in the mixed gas contacted with materials are avoided.
Description
Technical Field
The utility model particularly relates to a filling oxygen-deficient device.
Background
After partial chemical products are contacted with pure nitrogen or oxygen under air, polymerization inhibitors in the products can fail to generate polymerization reaction, and explosive mixed gas is formed by the polymerization inhibitors and low-flash point alpha-ethylene chemical steam under saturated air. The product tank discharging process generally uses nitrogen and an air pipe with good thickness ratio to carry out pressurized material feeding, however, the discharging mode still has the following problems that firstly, the oxygen content cannot be accurately controlled after the nitrogen and the air are mixed in the discharging process, the oxygen concentration has excessive risk, secondly, the nitrogen or the air pipe is abnormal, such as blockage and mixing proportion imbalance after valve breakage, hidden danger risks exist, and particularly when a nitrogen pipeline is in fault, the violent mixed gas is extremely easy to form.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the filling oxygen-deficient device capable of obtaining the oxygen-deficient mixed gas meeting the requirements of conveying and filling processes, so that the safety of filling operation is higher or the failure of a polymerization inhibitor is avoided.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The filling oxygen-deficient device comprises a mixer and a buffer tank connected with the mixer through a connecting pipe, wherein a first input pipe and a second input pipe are respectively connected to the mixer, an output pipe is connected to the buffer tank, the first input pipe is used for inputting nitrogen into the mixer, and the second input pipe is used for inputting oxygen or air into the mixer;
The filling oxygen-deficient device further comprises a first oxygen instrument for monitoring the oxygen concentration in the mixer, a second oxygen instrument for monitoring the oxygen concentration in the buffer tank and a control system, wherein the control system is respectively connected with the first oxygen instrument and the second oxygen instrument in a signal manner.
In some embodiments, a first electric valve is disposed on the first input pipe, a second electric valve is disposed on the second input pipe, a third electric valve is disposed on the output pipe, and the first electric valve, the second electric valve and the third electric valve are respectively electrically connected with the control system.
In some specific embodiments, the first input pipe is further provided with a first flow transmitter, the second input pipe is further provided with a second flow transmitter, the output pipe is further provided with a third flow transmitter, and the first flow transmitter, the second flow transmitter and the third flow transmitter are respectively and electrically connected with the control system.
In some embodiments, the control system is provided with an alarm, and the alarm is respectively connected with the first oxygen analyzer and the second oxygen analyzer in a signal way.
In some embodiments, the filling oxygen-depleted device further comprises a first discharge pipe connected to the mixer, a fourth electrically operated valve is provided on the first discharge pipe, and the fourth electrically operated valve is electrically connected to a control system.
In some embodiments, the filling oxygen-depleted device further comprises a second discharge pipe connected to the buffer tank, a fifth electric valve is arranged on the second discharge pipe, the fifth electric valve is electrically connected with the control system, and the second discharge pipe is arranged at the top of the buffer tank.
In some embodiments, the filling oxygen-deficient device further comprises an emptying pipe connected to the buffer tank, an emptying valve is arranged on the emptying pipe, and the emptying pipe is connected to the bottom of the buffer tank.
In some embodiments, a safety valve is further disposed on the buffer tank.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
The oxygen concentration content in the mixed gas generated by the filling oxygen-deficient device can be accurately controlled, the mixed gas meeting the requirements of conveying and filling processes is obtained, and the explosion risk and the polymerization inhibitor failure risk caused by the too high or too low oxygen concentration in the mixed gas contacted with materials are avoided.
Drawings
FIG. 1 is a schematic diagram of a filling oxygen-deficient device according to an exemplary embodiment of the present utility model;
The device comprises a mixer 1, a buffer tank 2, a first input pipe 3, a second input pipe 4, a connecting pipe 5, a first discharge pipe 6, a 7, an emptying pipe 8, a second discharge pipe 9, an output pipe 10, a first flow transmitter 11, a second flow transmitter 12, a control system 13, a third flow transmitter 14, a first oxygen instrument 15, a second oxygen instrument 16, a first electric valve 17, a second electric valve 18, a third electric valve 19, a fourth electric valve 20, a fifth electric valve 21, an emptying valve 22 and a safety valve.
Detailed Description
The utility model is further described with reference to the drawings and specific examples in the specification:
The filling oxygen-deficient device as shown in fig. 1 comprises a mixer 1, a buffer tank 2 and a control system 12, wherein the buffer tank 2 is connected with the mixer 1 through a connecting pipe 5, the volume of the buffer tank 2 is larger than that of the mixer 1, a first input pipe 3 and a second input pipe 4 are respectively connected to the mixer 1, the first input pipe 3 is used for inputting nitrogen into the mixer 1, the second input pipe 4 is used for inputting air into the mixer 1, and an output pipe 9 is connected to the buffer tank 2.
The filling oxygen-deficient device further comprises a first oxygen instrument 14 for monitoring the oxygen concentration in the mixer 1 and a second oxygen instrument 15 for monitoring the oxygen concentration in the buffer tank 2, wherein the first oxygen instrument 14 and the second oxygen instrument 15 are respectively electrically connected with the control system 12. The first oxygen analyzer 14 feeds back the oxygen concentration of the mixer 1 to the control system 12 in real time, and the second oxygen analyzer 15 feeds back the oxygen concentration of the buffer tank 2 to the control system 12 in real time.
The first input pipe 3 is provided with a first electric valve 16 and a first flow transmitter 10 respectively, the second input pipe 4 is provided with a second electric valve 17 and a second flow transmitter 11 respectively, the output pipe 9 is provided with a third electric valve 18 and a third flow transmitter 13 respectively, the first electric valve 16, the second electric valve 17, the third electric valve 18, the first flow transmitter 10, the second flow transmitter 11 and the third flow transmitter 13 are electrically connected with the control system 12 respectively, the first flow transmitter 10 and the second flow transmitter 11 are used for detecting the usage amount of nitrogen and air respectively, and the numerical values are fed back to the control system 12 so that the control system 12 controls the opening angles of the first electric valve 16 and the second electric valve 17 to control the inlet ratio of the nitrogen and the air and control the output of the mixed gas. The output gas quantity of the buffer tank 2 is controlled through the opening angle of the third electric valve 18, the third flow transmitter 13 is used for detecting the output quantity of the mixed gas in the buffer tank 2 and feeding back the numerical value to the control system 12, so that the control system 12 can conveniently transmit instructions to the first electric valve 16 and the second electric valve 17, the opening amplitude of the first electric valve 16 and the second electric valve 17 is changed, and the gas production quantity of the mixer 1 is used for producing the required mixed gas according to the quantity.
The filling oxygen-deficient device further comprises a first discharge pipe 6 connected to the mixer 1, an emptying pipe 7 connected to the buffer tank 2 and a second discharge pipe 8 connected to the buffer tank 2, wherein the first discharge pipe 6 is provided with a fourth electric valve 19, the second discharge pipe 8 is provided with a fifth electric valve 20, the emptying pipe 7 is provided with an emptying valve 21, and the fourth electric valve 19 and the fifth electric valve 20 are respectively electrically connected with the control system 12. Specifically, the second discharge pipe 8 is provided at the top of the surge tank 2, and the emptying pipe 7 is provided at the bottom of the surge tank 2.
The buffer tank 2 is also provided with a safety valve 22.
The control system 12 is provided with an alarm which is respectively connected with a first oxygen analyzer 14 and a second oxygen analyzer 15 in a signal way. In the actual use process, a first-stage high alarm value with the ultrahigh oxygen concentration and a first-stage low alarm value with the ultralow oxygen concentration in the mixer 1 are preset on the control system 12, a second-stage high alarm value with the ultrahigh oxygen concentration and a second-stage low alarm value with the ultralow oxygen concentration in the buffer tank 2 are preset, the concentration value of the second-stage high alarm value is lower than the first-stage high alarm value, the concentration value of the second-stage low alarm value is lower than the first-stage low alarm value, the first oxygen analyzer 14 feeds back the monitored oxygen concentration in the mixer 1 to the control system 12, if the monitored oxygen concentration in the mixer 1 exceeds the first-stage high alarm value, the first-stage high alarm of the alarm is triggered, the opening angles of the first electric valve 16 and the second electric valve 17 are regulated, meanwhile, the fourth electric valve 19 is opened to discharge the mixed gas in the non-qualified stage in the mixer 1, the mixed gas in the non-qualified stage is finally lowered to the qualified range, the mixed gas in the buffer tank 2 is continuously conveyed to the process, if the monitored oxygen concentration in the mixer 1 is lower than the first-stage low alarm value, the first-stage low alarm value of the monitored oxygen concentration of the mixer 1 is triggered, the first-stage low alarm valve 16 and the second electric valve 17 is also opened to the mixed gas in the non-qualified stage in the process, and the mixed gas in the non-stage in the mixed gas is continuously discharged to the non-qualified stage in the process, and the mixed gas is continuously discharged in the process in the stage of the stage 1. If the second oxygen analyzer 15 monitors that the oxygen concentration in the buffer tank 2 exceeds the second-level high alarm value or is lower than the second-level low alarm value, the control system 12 controls the third electric valve 18 to be closed, the fifth electric valve 20 is opened, and the unqualified gas in the buffer tank 2 is discharged, so that the unqualified gas is prevented from entering the using process to generate danger.
When the filling oxygen-deficient device is specifically used, nitrogen and air are respectively conveyed into the mixer 1 through the first input pipe 3 and the second input pipe 4 and mixed, the first oxygen instrument 14 detects mixed gas in the mixer 1, the air inlet proportion of the nitrogen and the air is timely changed through detecting the oxygen content, the first electric valve 16 and the second electric valve 17, the first oxygen instrument 14 detects qualified mixed gas in the mixer 1 and enters the buffer tank 2 to serve as a storage air source, the second oxygen instrument 15 detects the mixed gas in the buffer tank 2, and when detection data do not meet requirements, the opening angles of the first electric valve 16 and the second electric valve 17 are timely adjusted to further control the air inlet amount to change the oxygen concentration of the mixed gas. And the first flow transmitter 10, the second flow transmitter 11 and the third flow transmitter 13 detect the gas production or the gas consumption in the use process, respectively, to change the gas mixture production. If the unqualified mixed gas in the buffer tank 2 is detected before the use, the control system 12 controls the third electric valve 18 to be closed, the rear end stops air intake to prevent danger, meanwhile, the fifth electric valve 20 is opened to discharge the unqualified gas, the end of the mixer 1 adjusts the mixing proportion within the range of a set value according to the oxygen concentration requirement in the buffer tank 2, and finally, the gas used in the buffer tank 2 and the rear end is kept to meet the set requirement.
The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. The filling oxygen-deficient device is characterized by comprising a mixer and a buffer tank connected with the mixer through a connecting pipe, wherein a first input pipe and a second input pipe are respectively connected to the mixer, an output pipe is connected to the buffer tank, the first input pipe is used for inputting nitrogen into the mixer, and the second input pipe is used for inputting oxygen or air into the mixer;
The filling oxygen-deficient device further comprises a first oxygen instrument for monitoring the oxygen concentration in the mixer, a second oxygen instrument for monitoring the oxygen concentration in the buffer tank and a control system, wherein the control system is respectively connected with the first oxygen instrument and the second oxygen instrument in a signal manner.
2. The filling oxygen-deficient apparatus according to claim 1, wherein the first input pipe is provided with a first electric valve, the second input pipe is provided with a second electric valve, the output pipe is provided with a third electric valve, and the first electric valve, the second electric valve and the third electric valve are respectively electrically connected with the control system.
3. The filling oxygen-deficient apparatus according to claim 2, wherein the first input pipe is further provided with a first flow transmitter, the second input pipe is further provided with a second flow transmitter, the output pipe is further provided with a third flow transmitter, and the first flow transmitter, the second flow transmitter and the third flow transmitter are respectively electrically connected with the control system.
4. The oxygen-deficient filling device according to claim 1, wherein the control system is provided with an alarm, and the alarm is respectively connected with the first oxygen analyzer and the second oxygen analyzer in a signal manner.
5. The filling and oxygen-deficient apparatus according to claim 1, further comprising a first discharge pipe connected to the mixer, wherein a fourth electrically operated valve is provided on the first discharge pipe, and wherein the fourth electrically operated valve is electrically connected to a control system.
6. The filling oxygen-depleted device according to claim 1, further comprising a second discharge pipe connected to the buffer tank, wherein a fifth electrically operated valve is provided on the second discharge pipe, and the fifth electrically operated valve is electrically connected to a control system.
7. The filling oxygen-depleted apparatus according to claim 6, wherein the second discharge pipe is provided at the top of the buffer tank.
8. The oxygen-deficient apparatus according to claim 1, further comprising an evacuation pipe connected to the buffer tank, wherein an evacuation valve is provided on the evacuation pipe.
9. The filling oxygen-deficient apparatus according to claim 8, wherein the emptying pipe is connected to the bottom of the buffer tank.
10. The oxygen-deficient filling device according to claim 1, wherein the buffer tank is further provided with a safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420963543.2U CN222196848U (en) | 2024-05-07 | 2024-05-07 | A filling oxygen-depleted device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420963543.2U CN222196848U (en) | 2024-05-07 | 2024-05-07 | A filling oxygen-depleted device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222196848U true CN222196848U (en) | 2024-12-20 |
Family
ID=93875297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420963543.2U Active CN222196848U (en) | 2024-05-07 | 2024-05-07 | A filling oxygen-depleted device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222196848U (en) |
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2024
- 2024-05-07 CN CN202420963543.2U patent/CN222196848U/en active Active
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