CN213854475U - Reduced pressure nitrogen gas supply system - Google Patents
Reduced pressure nitrogen gas supply system Download PDFInfo
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- CN213854475U CN213854475U CN202022361604.2U CN202022361604U CN213854475U CN 213854475 U CN213854475 U CN 213854475U CN 202022361604 U CN202022361604 U CN 202022361604U CN 213854475 U CN213854475 U CN 213854475U
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Abstract
The utility model relates to a chemical industry equipment discloses a decompression nitrogen gas supply system. Decompression nitrogen gas feed system includes nitrogen gas jar, nitrogen gas conveying pipeline and at least one storage tank, nitrogen gas conveying pipeline's one end with the nitrogen gas jar is connected, the other end with at least one storage tank is connected, every be provided with exhaust assembly on the storage tank respectively, nitrogen gas conveying pipeline is last to be close to the one end of nitrogen gas jar has set gradually pressure adjustment subassembly and pipeline manometer, the pressure adjustment subassembly the pipeline manometer with exhaust assembly cooperatees, in order can be at evacuation every behind the air in the storage tank, with every nitrogen gas pressure in the storage tank is adjusted and is maintained to the pressure value of settlement. The utility model discloses a decompression nitrogen gas supply system can automatically regulated and maintain the nitrogen pressure in the storage tank, not only provides guarantee, the simple operation moreover to the quality and the operation safety of material in the storage tank.
Description
Technical Field
The utility model relates to a chemical industry equipment specifically, relates to a decompression nitrogen gas supply system.
Background
In the production storage process of chemical enterprises, because of the reduction of environmental factor temperature or use the interior material of storage tank, can lead to storage tank internal pressure to reduce, in order to avoid storage tank negative pressure, keep pressure balance, combine the safety factor, need to supplement nitrogen gas in to the storage tank.
The currently used nitrogen supply device is generally provided with a pressure gauge and a nitrogen pipeline on a storage tank, an operator needs to check the pressure gauge of the storage tank and judge the pressure gauge, then manually opens a valve on the nitrogen pipeline, and fills nitrogen into the storage tank, and manually closes the nitrogen pipeline valve when the pressure in the storage tank reaches a required pressure value, the operation process needs the operator to pay close attention to the pressure gauge, and if the number of the storage tanks in a tank area is large, a large amount of time and effort are needed to complete nitrogen filling work, which is tedious; in addition, the ambient temperature can reduce night to the storage tank produces the negative pressure because of temperature variation easily, if no operating personnel is on duty, then can appear nitrogen gas supply untimely, and the long-term negative pressure of storage tank can cause certain damage to the storage tank, reduces the life of storage tank.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a decompression nitrogen gas supply system is provided, this system can automatically regulated and maintain the nitrogen gas pressure in the storage tank, not only provides guarantee, simple operation moreover to the quality and the operation safety of material in the storage tank.
In order to solve the technical problem, the utility model provides a decompression nitrogen gas feed system, including nitrogen gas jar, nitrogen gas conveying pipeline and at least one storage tank, nitrogen gas conveying pipeline's one end with nitrogen gas jar is connected, the other end with at least one storage tank is connected, every be provided with exhaust assembly on the storage tank respectively, nitrogen gas conveying pipeline is last to be close to the one end of nitrogen gas jar has set gradually pressure regulating assembly and pipeline manometer, pressure regulating assembly the pipeline manometer with exhaust assembly cooperatees to can be at evacuation every behind the air in the storage tank, with every nitrogen gas pressure in the storage tank is adjusted and is maintained to the pressure value of settlement.
As a preferable mode, the pressure regulating assembly includes a pressure regulating valve located on the nitrogen gas conveying pipeline, a side pipeline connected in parallel with the pressure regulating valve, and a side valve located on the side pipeline, and two ends of the side pipeline are respectively connected with the nitrogen gas conveying pipeline.
Preferably, the pressure regulating valve is a self-operated pressure regulating valve.
Further preferably, a check valve is arranged on the nitrogen conveying pipeline and is positioned between the nitrogen tank and the pressure regulating assembly.
Specifically, a pipeline valve is arranged on the nitrogen conveying pipeline and located between the nitrogen tank and the one-way valve.
As another preferred mode, the nitrogen conveying pipeline is connected with each storage tank through a branch pipeline, and each branch pipeline is provided with a branch valve.
Preferably, a storage tank pressure gauge is respectively arranged on each storage tank.
More preferably, the exhaust assembly comprises an exhaust pipeline and an exhaust valve positioned on the exhaust pipeline, and the exhaust pipeline is connected with the top of the storage tank corresponding to the exhaust pipeline.
Further preferably, each exhaust pipeline is provided with a single-expiration valve, and the single-expiration valve is located between a port of the exhaust pipeline far away from the storage tank and the exhaust valve.
Specifically, the reduced-pressure nitrogen supply system further comprises a tail gas treatment device, and a port of each exhaust pipeline, which is far away from the storage tank, is respectively connected with the tail gas treatment device.
Through the technical scheme, the pressure regulating assembly and the pipeline pressure gauge are arranged on the nitrogen conveying pipeline of the pressure-reducing nitrogen supply system, the pressure regulating assembly is firstly utilized to enable the nitrogen conveying pipeline to be in a communicated state, so that nitrogen in the nitrogen tank is input into the storage tank through the nitrogen conveying pipeline, air in each storage tank is emptied and filled with nitrogen, the pipeline pressure gauge is utilized to monitor and display the pressure in the nitrogen conveying pipeline in real time, when the pressure value of the pipeline pressure gauge is smaller than the set pressure value, the pressure of the nitrogen in each storage tank is regulated and maintained to the set pressure value through the pressure regulating assembly, when the pressure value of the pipeline pressure gauge is overlarge, the pressure in the corresponding storage tank is reduced through the exhaust assembly of each storage tank, the storage tank is filled with nitrogen, the pressure is stably maintained at a slight positive pressure, and materials in the storage tank are prevented from being contacted with oxygen, reduce the material loss, provide the guarantee to the safety of operation and the quality of material in the storage tank.
The utility model discloses an among the preferred embodiment, the air in can the evacuation storage tank fast is opened to the side way valve among the pressure regulating assembly, closes the side way valve after the air evacuation in the storage tank, and pressure regulating valve can reduce manual operation according to the pressure value automatically regulated in a plurality of storage tanks of pipeline manometer.
Further advantages of the invention, as well as the technical effects of preferred embodiments, will be further explained in the following detailed description.
Drawings
Fig. 1 is a schematic structural diagram of a specific embodiment of the nitrogen gas supply system for reducing pressure in the present invention.
Description of the reference numerals
1 nitrogen tank 2 nitrogen gas conveying pipeline
21 one-way valve and 22 pressure regulating valve
24-side pipeline of 23-pipeline pressure gauge
25 side valve 26 pipeline valve
3 31 storage tank pressure gauge
32 exhaust pipeline 33 exhaust valve
34 single-expiratory valve 4-branch valve
5 tail gas treatment device 6 nitrogen making machine
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
It should be noted that, in the following description of the technical solutions of the present invention, the terms "top" and "bottom" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used for convenience of description and simplification of the present invention, but not to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected," "mounted," and "fixed" are to be construed broadly, and for example, the connection may be a fixed connection, a detachable connection, or an integral connection; the connection may be direct or indirect through an intermediate medium, and may be a connection between two members or an interaction relationship between two members. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The utility model provides a decompression nitrogen gas supply system, see figure 1, including nitrogen gas jar 1, nitrogen gas conveying pipeline 2 and at least one storage tank 3, nitrogen gas conveying pipeline 2's one end is connected with nitrogen gas jar 1, the other end is connected with at least one storage tank 3, be provided with exhaust assembly on every storage tank 3 respectively, the one end that is close to nitrogen gas jar 1 on the nitrogen gas conveying pipeline 2 has set gradually pressure regulation subassembly and pipeline manometer 23, the pressure regulation subassembly, pipeline manometer 23 cooperatees with exhaust assembly, in order can be behind the air in evacuation every storage tank 3, adjust and maintain the pressure value to the settlement with the nitrogen gas pressure in every storage tank 3.
In the utility model, one or more storage tanks 3 can be arranged, and when a plurality of storage tanks 3 are arranged, each storage tank 3 is arranged in parallel and is connected with the nitrogen conveying pipeline 2; the nitrogen tank 1 can be a high-pressure nitrogen storage tank or can be connected with the nitrogen making machine 6, and the nitrogen making machine 6 is opened to operate when nitrogen is needed to be used; the set pressure value is a pressure value for maintaining the pressure in the tank 3 in a micro-positive pressure state.
The pressure-reducing nitrogen gas supply system of the basic technical proposal of the utility model, when in use, firstly, the pressure adjusting component is utilized to connect the nitrogen gas conveying pipeline 2, so as to input the nitrogen gas in the nitrogen gas tank 1 into the storage tank 3 through the nitrogen gas conveying pipeline 2, empty and fill the air in each storage tank 3 with the nitrogen gas, then the pipeline pressure gauge 23 is utilized to monitor and display the pressure in the nitrogen gas conveying pipeline 2 in real time, when the pressure value of the pipeline pressure gauge 23 is less than the set pressure value, the pressure adjusting component is utilized to adjust and maintain the nitrogen gas pressure in each storage tank 3 to the set pressure value, when the pressure value of the pipeline pressure gauge 23 is overlarge, the exhaust component of each storage tank 3 is utilized to reduce the pressure in the corresponding storage tank 3, thus the air in the storage tank 3 is discharged and filled with the nitrogen gas, the pressure is stably maintained at a slight positive pressure, and the contact between the materials in the storage tank 3 and the oxygen gas is avoided, reduce the material loss, provide the guarantee to the safety of operation and the quality of material in the storage tank 3.
As an embodiment of the utility model discloses well pressure regulating assembly, pressure regulating assembly can set up to be located the valve on the nitrogen gas conveying pipeline 2, the valve is connected through the controller electricity with pipeline manometer 23, when the air in evacuation storage tank 3, open the valve, utilize the electricity of controller disconnection pipeline manometer 23 and valve to be connected, so that nitrogen gas in the nitrogen gas conveying pipeline 2 can get into in storage tank 3 and evacuation air, when needing to maintain the pressure in storage tank 3 after the air evacuation in storage tank 3, utilize controller connection pipeline manometer 23 and valve, the pressure value that pipeline manometer 23 detected can turn into the signal that the control valve closed and opened the size through the controller, and transmit the operating condition with adjusting valve to the valve, and then realize adjusting the pressure in the storage tank 3.
As the utility model discloses a preferred embodiment of well pressure regulating assembly, pressure regulating assembly include the pressure regulating valve 22 that is located nitrogen gas pipeline 2, with the parallelly connected side way pipeline 24 that sets up of pressure regulating valve 22 and be located the side way valve 25 on the side way pipeline 24, the both ends of side way pipeline 24 are connected with nitrogen gas pipeline 2 respectively. At this time, when the air in the storage tank 3 is emptied, the side valve 25 is opened, and under the pressure of the nitrogen in the nitrogen tank 1, the nitrogen in the nitrogen conveying pipeline 2 can enter the storage tank 3 from the side pipeline 24 and quickly empty the air in the storage tank 3; when the pressure in the storage tank 3 needs to be maintained after the air in the storage tank 3 is exhausted, the side valve 25 is closed, the pressure value of the nitrogen conveying pipeline 2 is detected by combining the pipeline pressure gauge 23, the pressure regulating valve 22 is regulated and set, so that the pipeline pressure gauge 23 is stable to be a set value, the pressure regulating valve 22 can automatically regulate the nitrogen flow rate of the pressure regulating valve 22, and the pressure in the nitrogen conveying pipeline 2 and the pressure in the storage tank 3 are regulated and maintained.
Preferably, the pressure regulating valve 22 is a self-operated pressure regulating valve, because the pipeline pressure gauge 23 is located behind the pressure regulating valve 22, and the pressure regulating valve 22 is specifically configured as a pressure-closed self-operated pressure regulating valve, at this time, the pressure regulating valve 22 does not need other external energy sources, such as a power supply, an air source and the like, the closing or opening size of the pressure regulating valve 22 is adjusted only by the driving of nitrogen energy flowing through the pressure regulating valve 22, the pressure value is set after the pressure regulating valve 22 is installed, and the automatic operation can be performed, so that the energy consumption of the system can be effectively reduced.
As a preferred embodiment of the utility model, be provided with check valve 21 on the nitrogen gas conveying pipeline 2, check valve 21 is located between nitrogen gas jar 1 and the pressure regulating assembly. The setting of check valve 21 can effectively avoid the gas reflux in storage tank 3 or nitrogen gas conveying pipeline 2 to nitrogen gas jar 1, and then avoids polluting the nitrogen gas in nitrogen gas jar 1.
Preferably, the nitrogen gas delivery pipe 2 is provided with a pipe valve 26, and the pipe valve 26 is located between the nitrogen gas tank 1 and the check valve 21. The pipeline valve 26 can be opened or closed according to whether the storage tank 3 needs nitrogen supply, when the storage tank 3 needs nitrogen conveying or pressure control, the pipeline valve 26 is opened, and if the nitrogen conveying is not needed, the pipeline valve 26 is closed, so that the operation is simple and convenient.
As another preferred embodiment of the utility model, nitrogen gas conveying pipeline 2 is connected with every storage tank 3 through the branch road pipeline, is provided with branch road valve 4 on every branch road pipeline respectively. The branch pipeline realizes that storage tank 3 can parallel connection when a plurality of, and the branch valve 4 that storage tank 3 corresponds can independently control whether the air in nitrogen gas conveying pipeline 2 can carry to this storage tank 3, in the practical application in-process, can be according to the demand of each storage tank 3, control opening or closing of corresponding branch valve 4 for each other does not influence between each storage tank 3.
Preferably, be provided with storage tank manometer 31 on every storage tank 3 respectively, the pressure value in the real-time detection storage tank 3 to make operating personnel can be according to storage tank manometer 31's pressure value, adjust the setting value of pipeline manometer 23 better, make the pressure control in the storage tank 3 more accurate.
As the utility model discloses well exhaust assembly's a preferred embodiment, exhaust assembly includes exhaust pipe way 32 and is located the exhaust valve 33 on exhaust pipe way 32, and exhaust pipe way 32 is connected with the 3 tops of storage tank that this exhaust pipe way 32 corresponds. When the pressure value of the pipeline pressure gauge 23 is larger than a set value, the exhaust valve 33 is opened to prevent the overpressure phenomenon of the pressure in the storage tank 3; when the air in the tank 3 is evacuated using the pressure regulating assembly, the exhaust valve 33 is also in an open state.
Preferably, a single-expiration valve 34 is provided on each exhaust line 32, the single-expiration valve 34 being located between a port of the exhaust line 32 remote from the tank 3 and the exhaust valve 33. Because the single exhalation valve 34 can only exhale gas but not inhale gas, the contact between the medium in the storage tank 3 and the outside air can be effectively avoided, and the quality of the material in the storage tank 3 is ensured.
As another preferred embodiment of the present invention, the pressure-reducing nitrogen supply system further includes a tail gas treatment device 5, and the port of each exhaust pipeline 32 away from the storage tank 3 is connected to the tail gas treatment device 5. The tail gas treatment device 5 may be designed by selecting a corresponding tail gas treatment method according to the characteristics of the material in the storage tank 3, and specifically, may adopt a technology disclosed in the prior art, for example, an oil gas tail gas absorption treatment system disclosed in CN204656299U, and the like. The gas discharged from the exhaust pipe 32 from the storage tank 3 is introduced into the exhaust gas treatment device 5 and treated, so that the air can be prevented from being polluted and the safety of the operation environment can be improved in the case where the material in the storage tank 3 is polluted or dangerous.
In a relatively optimized embodiment of the present invention, the pressure-reducing nitrogen gas supply system comprises a nitrogen making machine 6, a nitrogen tank 1 connected with the nitrogen making machine 6, a nitrogen gas conveying pipeline 2 and three storage tanks 3, one end of the nitrogen gas conveying pipeline 2 is connected with the nitrogen tank 1, the other end is connected with the three storage tanks 3 through branch pipelines, each branch pipeline is respectively provided with a branch valve 4, each storage tank 3 is respectively provided with a storage tank pressure gauge 31 and an exhaust component, one end of the nitrogen gas conveying pipeline 2 close to the nitrogen tank 1 is sequentially provided with a pipeline valve 26, a check valve 21, a pressure-closing self-operated pressure regulating valve and a pipeline pressure gauge 23, the nitrogen gas conveying pipeline 2 is further provided with a side pipeline 24 connected in parallel with the pressure regulating valve 22 and a side pipeline valve 25 positioned on the side pipeline 24, the exhaust component comprises an exhaust pipeline 32, one end of the exhaust pipeline 32 close to the storage tank 3 is sequentially provided with an exhaust valve 33 and a single-breath valve 34, the exhaust pipeline 32 is connected with the top of the storage tank 3 corresponding to the exhaust pipeline 32, and the port of each exhaust pipeline 32 far away from the storage tank 3 is respectively connected with the tail gas treatment device 5.
In the pressure-reducing nitrogen gas supply system provided in the above embodiment, the pipeline valve 26, the branch valve 4, the side valve 25, and the exhaust valve 33 are all in the closed state in the initial state; when the pressure regulating device is used, the pipeline valve 26, the side pipeline valve 25, the branch pipeline valve 4 and the exhaust valve 33 corresponding to the storage tank 3 which needs to be filled with nitrogen are opened, the nitrogen tank 1 is input into the corresponding storage tank 3 through the nitrogen conveying pipeline 2 and the side pipeline 24 at a large flow rate to quickly exhaust the air in the corresponding storage tank 3 and fill the nitrogen, then the side pipeline valve 25 is closed, the pressure in the nitrogen conveying pipeline 2 is monitored and displayed in real time by using the pipeline pressure gauge 23, the pressure value of the pipeline pressure gauge 23 is combined to regulate and set the pressure-closed type self-operated pressure regulating valve, when the pressure value of the pipeline pressure gauge 23 is smaller than the set pressure value, the self-operated pressure regulating valve can automatically regulate the nitrogen flow rate of the self-operated pressure regulating valve, so as to regulate and maintain the pressure in the nitrogen conveying pipeline 2 and the storage tank 3, when the pressure value of the pipeline pressure gauge 23 is too large, the gas in the storage tank 3 is exhausted through the corresponding exhaust valve 33 and the single-exhalation valve 34 to reduce the pressure in the corresponding storage tank 3, so that the pressure in the reservoir 3 is stably maintained at a slight positive pressure.
The utility model provides a be provided with pressure regulating subassembly and pipeline manometer 23 on decompression nitrogen gas supply system's the nitrogen gas pipeline 2, air in the storage tank 3 can be emptied for 3 intussuseptions in the storage tank are with nitrogen gas and stable in pressure to maintain at the pressure-fired pressure, avoid material and oxygen contact in the storage tank 3, reduce the material loss, provide the guarantee to the safety of operation and the quality of material in the storage tank 3.
The utility model discloses an among the preferred embodiment, the air in can evacuation storage tank 3 fast is opened to side way valve 25 among the pressure regulating assembly, closes side way valve 25 after the air evacuation in storage tank 3, and pressure regulating valve 22 can reduce manual operation according to the pressure value automatically regulated in a plurality of storage tanks 3 of pipeline manometer 23.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it is possible to provide the technical solution of the present invention with a plurality of simple modifications, including combining each specific technical feature in any suitable manner, and in order to avoid unnecessary repetition, the present invention does not provide additional description for various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.
Claims (10)
1. The utility model provides a decompression nitrogen gas feed system, its characterized in that, includes nitrogen gas jar (1), nitrogen gas conveying pipeline (2) and at least one storage tank (3), the one end of nitrogen gas conveying pipeline (2) with nitrogen gas jar (1) is connected, the other end with at least one storage tank (3) is connected, every be provided with exhaust assembly on storage tank (3) respectively, be close to on the nitrogen gas conveying pipeline (2) the one end of nitrogen gas jar (1) has set gradually pressure regulating assembly and pipeline manometer (23), pressure regulating assembly pipeline manometer (23) with exhaust assembly cooperatees to can be at evacuation every behind the air in storage tank (3), with every nitrogen gas pressure in the storage tank (3) adjusts and maintains to the pressure value of settlement.
2. The reduced-pressure nitrogen gas supply system according to claim 1, wherein the pressure regulating assembly includes a pressure regulating valve (22) on the nitrogen gas delivery pipe (2), a bypass pipe (24) provided in parallel with the pressure regulating valve (22), and a bypass valve (25) on the bypass pipe (24), and both ends of the bypass pipe (24) are connected to the nitrogen gas delivery pipe (2), respectively.
3. The reduced-pressure nitrogen gas supply system according to claim 2, wherein the pressure regulating valve (22) is a self-operated pressure regulating valve.
4. A reduced-pressure nitrogen gas supply system according to claim 1, wherein a check valve (21) is provided on the nitrogen gas delivery line (2), the check valve (21) being located between the nitrogen gas tank (1) and the pressure regulating assembly.
5. A reduced-pressure nitrogen gas supply system according to claim 4, wherein a line valve (26) is provided on the nitrogen gas delivery line (2), the line valve (26) being located between the nitrogen gas tank (1) and the check valve (21).
6. A reduced-pressure nitrogen gas supply system according to any one of claims 1 to 5, wherein the nitrogen gas delivery line (2) is connected to each of the storage tanks (3) through a branch line, and a branch valve (4) is provided on each of the branch lines.
7. A reduced-pressure nitrogen gas supply system according to claim 6, wherein a tank pressure gauge (31) is provided on each of the tanks (3).
8. A reduced-pressure nitrogen gas supply system according to any one of claims 1 to 5, characterized in that the exhaust assembly comprises an exhaust line (32) and an exhaust valve (33) located on the exhaust line (32), the exhaust line (32) being connected to the top of the storage tank (3) corresponding to the exhaust line (32).
9. A reduced-pressure nitrogen supply system according to claim 8, characterized in that a single-expiration valve (34) is provided on each exhaust line (32), the single-expiration valve (34) being located between a port of the exhaust line (32) remote from the tank (3) and the exhaust valve (33).
10. The reduced pressure nitrogen supply system according to claim 8, further comprising an exhaust gas treatment device (5), wherein a port of each exhaust line (32) remote from the storage tank (3) is connected to the exhaust gas treatment device (5).
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| CN202022361604.2U CN213854475U (en) | 2020-10-21 | 2020-10-21 | Reduced pressure nitrogen gas supply system |
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| CN202022361604.2U CN213854475U (en) | 2020-10-21 | 2020-10-21 | Reduced pressure nitrogen gas supply system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115869662A (en) * | 2022-01-06 | 2023-03-31 | 中集安瑞科工程科技有限公司 | Defoaming agent mixing and feeding device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115869662A (en) * | 2022-01-06 | 2023-03-31 | 中集安瑞科工程科技有限公司 | Defoaming agent mixing and feeding device |
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