CN217402295U - Auxiliary nitrogen supply system - Google Patents
Auxiliary nitrogen supply system Download PDFInfo
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- CN217402295U CN217402295U CN202221565874.8U CN202221565874U CN217402295U CN 217402295 U CN217402295 U CN 217402295U CN 202221565874 U CN202221565874 U CN 202221565874U CN 217402295 U CN217402295 U CN 217402295U
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Abstract
The utility model discloses an auxiliary nitrogen supply system, which comprises a liquid storage tank, a vaporizer, a buffer tank and a control system, wherein the liquid storage tank is used for storing liquid nitrogen; the liquid storage tank is communicated with the vaporizer through a liquid inlet pipeline; the buffer tank is communicated with the vaporizer through an air outlet pipeline and is communicated with external equipment through an air supply pipeline, a first control valve and a pressure sensor are arranged on the air supply pipeline, and the first control valve is a pneumatic membrane valve; the first control valve and the pressure sensor are in communication connection with the control system. The utility model discloses an exit end installation buffer tank at the vaporizer, store the nitrogen gas after the vaporizer vaporization in the buffer tank, simultaneously through set up pressure sensor on the air supply line, detect the house steward pressure in the air supply line through pressure sensor to send for control system, control system adjusts first control valve according to house steward pressure, with the effect that reaches nitrogen flow in the regulation air supply line, thereby make in the air supply line nitrogen gas supply pressure sufficient, the flow stability.
Description
Technical Field
The utility model relates to a float glass production supplies nitrogen technical field, especially relates to an auxiliary nitrogen system that supplies.
Background
In the production process of float glass, the forming of glass is finished in a tin bath, in order to prevent tin liquor in the tin bath from being oxidized, according to the current technology in the industry, nitrogen and hydrogen are introduced into the tin bath in the production of the float glass and serve as protective gas, the nitrogen is inert gas and cannot be subjected to oxidation reaction with the tin liquor, the high-purity nitrogen introduced into the tin bath is required to be continuously supplied, and the tin bath is in a micro-positive pressure state. The nitrogen is supplied by air-protecting part through air separation refrigeration and air separation, because the nitrogen is continuously conveyed through a pipeline, in order to ensure that air supply is interrupted in the accident situations of air separation equipment failure or power failure and the like, a liquid nitrogen storage tank carried by an air separation equipment system needs to store certain liquid nitrogen at any moment as emergency supply, namely, when the nitrogen making equipment fails or power failure happens occasionally, the liquid nitrogen in the liquid nitrogen storage tank needs to be immediately conveyed and conveyed into a production line tin bath after being vaporized.
However, the existing emergency nitrogen supply system has the problem that the quality of manufactured glass is reduced due to insufficient stability of nitrogen gas supply because the flow and pressure of supplied nitrogen gas are greatly fluctuated only by a manual valve at the outlet of the vaporizer.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides an auxiliary nitrogen supply system aims at solving the current emergent problem that supplies nitrogen system to supply with nitrogen gas stability not enough.
To achieve the above object, the present invention provides an auxiliary nitrogen supply system, including:
the liquid storage tank is used for storing liquid nitrogen;
the liquid storage tank is communicated with the vaporizer through a liquid inlet pipeline;
the buffer tank is communicated with the vaporizer through an air outlet pipeline and is communicated with external equipment through an air supply pipeline, and a first control valve and a pressure sensor are arranged on the air supply pipeline;
and the first control valve and the pressure sensor are in communication connection with the control system.
Preferably, the feed liquor pipeline includes that the feed liquor always passes through, first feed liquor branch road and second feed liquor branch road, the feed liquor always passes through first feed liquor branch road with the liquid storage pot intercommunication, and pass through second feed liquor branch road with the vaporizer intercommunication, be provided with the second control valve on the first feed liquor branch road, be provided with the third control valve on the second feed liquor branch road.
Preferably, first feed liquor branch road with the quantity of second feed liquor branch road is a plurality of, and is a plurality of first feed liquor branch road all connects in parallel and sets up, and is a plurality of second feed liquor branch road all connects in parallel and sets up.
Preferably, the pipeline of giving vent to anger is including giving vent to anger the total way, the first branch road of giving vent to anger and the second branch road of giving vent to anger, the first branch road of giving vent to anger with the unanimous and one-to-one intercommunication of second feed liquor branch road number, the second is given vent to anger the branch road and is passed through the first branch road of giving vent to anger with the vaporizer intercommunication, and pass through give vent to anger the total way with the buffer tank intercommunication, it is a plurality of the first branch road of giving vent to anger parallelly connected setting and all with the branch road intercommunication is given vent to anger to the second.
Preferably, a fourth control valve and a one-way valve are arranged on the first air outlet branch, and a fifth control valve is arranged on the second air outlet branch.
Preferably, the first control valve is a pneumatic membrane valve, and the second control valve, the third control valve, the fourth control valve and the fifth control valve are all low-temperature ball valves.
Preferably, the number of the vaporizers is plural, and plural vaporizers are arranged in parallel.
Preferably, the air supply line includes air supply main, first air supply branch road and second air supply branch road, the second air supply branch road passes through first air supply branch road with the buffer tank intercommunication, and pass through the air supply main with the external equipment intercommunication, the quantity of second air supply branch road is a plurality of, and is a plurality of the parallelly connected setting of second air supply branch road, first control valve sets up on the first air supply branch road, pressure sensor sets up on the air supply main.
Preferably, a plurality of second air supply branches are all provided with a sixth control valve, and the sixth control valve is a low-temperature ball valve.
Preferably, the control system comprises a PLC and an upper computer, the PLC is in communication connection with the first control valve, the upper computer is in communication connection with the pressure sensor, and the PLC is in communication connection with the upper computer.
In the technical scheme of the utility model, when the air supply interruption occurs in the accident situations such as air separation equipment failure or power failure, the auxiliary nitrogen supply system is started, the liquid nitrogen is conveyed from the liquid storage tank to the vaporizer through the liquid inlet pipeline, is changed into nitrogen after heat exchange vaporization and is conveyed to the buffer tank through the gas outlet pipeline, and is conveyed to the external equipment through the air supply pipeline from the buffer tank, the nitrogen is provided for the auxiliary nitrogen supply system, the buffer tank is installed at the outlet end of the vaporizer, the nitrogen vaporized by the vaporizer is stored in the buffer tank, the disturbance resistance is improved, meanwhile, through arranging the pressure sensor on the air supply pipeline, the main pipe pressure in the air supply pipeline is detected through the pressure sensor and is sent to the control system, the control system adjusts the first control valve on the air supply pipeline according to the main pipe pressure, so as to achieve the effect of adjusting the nitrogen flow in the air supply pipeline, thereby the nitrogen supply pressure in the air supply pipeline is sufficient, the flow is stable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an auxiliary nitrogen supply system according to an embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Auxiliary |
62 | First |
| 10 | |
63 | Second |
| 20 | Carburetor | 64 | |
| 30 | |
65 | One- |
| 40 | |
66 | |
| 50 | |
70 | |
| 51 | Liquid inlet |
71 | Air supply |
| 52 | First |
72 | First |
| 53 | Second |
73 | Second |
| 54 | |
74 | |
| 55 | |
75 | |
| 60 | |
76 | |
| 61 | Air outlet main road |
The purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.
Detailed Description
The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the present embodiment are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions of the embodiments of the present invention can be combined with each other, but it is necessary to use a person skilled in the art to realize the basis, and when the technical solutions are combined and contradictory to each other or cannot be realized, the combination of the technical solutions should not exist, and is not within the protection scope of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the present invention provides an auxiliary nitrogen supply system 1, which includes a liquid storage tank 10, a vaporizer 20, a buffer tank 30 and a control system 40, wherein the liquid storage tank 10 is used for storing liquid nitrogen; the liquid storage tank 10 is communicated with the vaporizer 20 through a liquid inlet pipeline 50; the buffer tank 30 is communicated with the vaporizer 20 through an air outlet pipeline 60 and is communicated with external equipment through an air supply pipeline 70, and the air supply pipeline 70 is provided with a first control valve 74 and a pressure sensor 75; the first control valve 74 and the pressure sensor 75 are both communicatively coupled to the control system 40.
In the technical scheme of the utility model, when the air supply interruption occurs in unexpected situations such as air separation equipment failure or power failure, the auxiliary nitrogen supply system 1 is started, the liquid nitrogen is conveyed from the liquid storage tank 10 to the vaporizer 20 through the liquid inlet pipeline 50, is changed into nitrogen after heat exchange vaporization and is conveyed to the buffer tank 30 through the gas outlet pipeline 60, and is conveyed to external equipment through the air supply pipeline 70 from the buffer tank 30 to provide nitrogen for the external equipment, the buffer tank 30 is installed at the outlet end of the vaporizer 20, the nitrogen vaporized by the vaporizer 20 is stored in the buffer tank 30 to increase the disturbance resistance, meanwhile, the pressure sensor 75 is arranged on the air supply pipeline 70, the header pressure in the air supply pipeline 70 is detected through the pressure sensor 75 and is sent to the control system 40, the control system 40 adjusts the first control valve 74 on the air supply pipeline 70 according to the header pressure to achieve the effect of adjusting the nitrogen flow in the air supply pipeline 70, thereby, the nitrogen gas supply pressure in the gas supply line 70 is sufficient and the flow rate is stable.
In an embodiment, the liquid inlet pipeline 50 includes a liquid inlet total path 51, a first liquid inlet branch 52 and a second liquid inlet branch 53, the liquid inlet total path 51 is communicated with the liquid storage tank 10 through the first liquid inlet branch 52, and is communicated with the vaporizer 20 through the second liquid inlet branch 53, a second control valve 54 is disposed on the first liquid inlet branch 52, and a third control valve 55 is disposed on the second liquid inlet branch 53. The second control valve 54 is arranged on the first liquid inlet branch 52 to control the flow of the liquid nitrogen output by the liquid storage tank 10, and the third control valve 55 is arranged on the second liquid inlet branch 53 to control the flow of the liquid nitrogen delivered to the vaporizer 20, so that the stability of the vaporizer 20 for generating nitrogen is improved.
In one embodiment, the number of the vaporizers 20 is plural, and plural vaporizers 20 are provided in parallel. The plurality of vaporizers 20 are arranged in parallel, so that the vaporization efficiency of the nitrogen is further increased, the flow supply of the nitrogen is improved, and the starting number of the vaporizers can be adjusted by opening or closing valves according to production requirements by the plurality of vaporizers 20.
Further, the number of the first liquid inlet branch circuits 52 and the second liquid inlet branch circuits 53 is plural, the plural first liquid inlet branch circuits 52 are arranged in parallel, and the plural second liquid inlet branch circuits 53 are arranged in parallel. The liquid inlet main 51 is respectively and independently communicated with the plurality of first liquid inlet branch circuits 52 and the plurality of second liquid inlet branch circuits 53, so that the liquid outlet rate of the liquid storage tank 10 and the liquid inlet rate of the vaporizer 20 are improved, and the supply amount of nitrogen is increased.
It is noted that the plurality of inlet branches 52 includes a liquid phase outlet and a gas phase outlet of the liquid storage tank 10. Meanwhile, when the number of the vaporizers 20 is plural, each vaporizer 20 is correspondingly provided with a plurality of second liquid inlet branch circuits 53 in parallel.
In an embodiment, the gas outlet pipeline 60 includes a gas outlet main 61, a first gas outlet branch 62 and a second gas outlet branch 63, the number of the first gas outlet branch 62 is consistent with that of the second liquid inlet branch 53, the first gas outlet branch 62 is in one-to-one correspondence communication, the second gas outlet branch 63 is communicated with the vaporizer 20 through the first gas outlet branch 62 and is communicated with the buffer tank 30 through the gas outlet main 61, and the plurality of first gas outlet branches 62 are arranged in parallel and are all communicated with the second gas outlet branch 63. After the nitrogen is output from the vaporizer 20, the nitrogen sequentially passes through the first gas outlet branch 62, the second gas outlet branch 63 and the gas outlet main 61 and is input into the buffer tank 30, the first gas outlet branch 62 and the second liquid inlet branch 53 are consistent in number and correspond to each other one by one, the vaporization efficiency of the liquid nitrogen is improved, meanwhile, the plurality of first gas outlet branches 62 are respectively and independently communicated with the second gas outlet branch 63, and the supply efficiency of the nitrogen is improved.
In one embodiment, a fourth control valve 64 and a check valve 65 are disposed on the first outlet branch 62, and a fifth control valve 66 is disposed on the second outlet branch 63. Through set up fourth control valve 64 and fifth control valve 66 on first air outlet branch 62 and second air outlet branch 63 to the output flow of control nitrogen gas, set up check valve 65 on first air outlet branch 62 simultaneously, prevent the nitrogen gas backward flow, improved the security.
In one embodiment, the first control valve 74 is a pneumatic diaphragm valve, and the second control valve 54, the third control valve 55, the fourth control valve 64, and the fifth control valve 66 are all low temperature ball valves. The low-temperature ball valve has the advantages of flexible opening and closing, reliable sealing, safety, stability and the like
In one embodiment, the air supply line 70 includes an air supply main 71, a first air supply branch 72, and a second air supply branch 73, the second air supply branch 73 is communicated with the buffer tank 30 through the first air supply branch 72, and is communicated with an external device through the air supply main 71, the number of the second air supply branches 73 is plural, the plural second air supply branches 73 are arranged in parallel, a first control valve 74 is arranged on the first air supply branch 72, and a pressure sensor 75 is arranged on the air supply main 71. The pressure sensor 75 is arranged on the gas supply main line 71 and used for detecting the pressure of the nitrogen in the gas supply main line 71, and the first control valve 74 is arranged at the position, close to the buffer tank 30, of the first gas supply branch 72, so that the first control valve 74 is controlled in real time through the result of the pressure sensor 75, the supply amount of the nitrogen is controlled, and the stability of nitrogen supply is improved.
In an embodiment, a sixth control valve 76 is disposed on each of the second gas supply branches 73, and the sixth control valve 76 is a low temperature ball valve. The sixth control valve 76 is arranged on the second gas supply branch 73 to control the on-off of the gas supply branch, so that the stability of nitrogen is improved by flexible application.
In one embodiment, the control system 40 includes a PLC in communication with the first control valve 74 and an upper computer in communication with the pressure sensor 75. The host computer is used for receiving the nitrogen pressure signal that pressure sensor 75 detected, and the host computer decides how to adjust first control valve 74 and give PLC with signal transmission, and PLC passes through first control valve 74 of this signal control to adjust nitrogen gas flow, and then adjust the nitrogen pressure in the second air feed branch 73.
When the air supply of the air distribution equipment is interrupted in an unexpected situation, the pressure sensor 75 on the air supply main line 71 detects that the pressure in the pipeline is reduced, converts a pressure signal into an electric signal through the pressure transmitter and sends the electric signal to the upper computer, when the pressure is reduced to a preset value, the upper computer sends an execution signal to the PLC, and the PLC controls the size of the switch of the first control valve 74 to control the flow of the supplementary nitrogen, so that the flow in the air supply main line 71 is adjusted to maintain a stable pressure range. When the air separation equipment recovers to supply air normally, the pressure flow sensor 75 sends a signal to the upper computer, the upper computer sends an execution signal to the PLC, and the PLC controls the first control valve 74 to be closed slowly.
It should be noted that the second control valve 54, the third control valve 55, the fourth control valve 64, the check valve 65 and the fifth control valve 66 are all in a normally open state, and vaporized nitrogen gas is all in each of the vaporizer 20, the gas outlet pipeline 60 and the gas storage tank 30, so that the auxiliary nitrogen supply system 1 can supplement nitrogen gas at any time under various emergency conditions.
The following table is the gas flow data in the gas supply main 71 of the auxiliary nitrogen supply system 1 before modification:
the following table shows the gas flow data in the gas supply main 71 of the modified auxiliary nitrogen supply system 1:
it can be seen that the stability of the nitrogen gas 1 using the improved auxiliary nitrogen supply system 1 is significantly improved.
The above is only the preferred embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings of the present invention, or directly or indirectly applied to other related technical fields, are included in the same way in the patent protection scope of the present invention.
Claims (10)
1. An auxiliary nitrogen supply system, comprising:
the liquid storage tank is used for storing liquid nitrogen;
the liquid storage tank is communicated with the vaporizer through a liquid inlet pipeline;
the buffer tank is communicated with the vaporizer through an air outlet pipeline and is communicated with external equipment through an air supply pipeline, and a first control valve and a pressure sensor are arranged on the air supply pipeline;
and the first control valve and the pressure sensor are in communication connection with the control system.
2. The auxiliary nitrogen supply system according to claim 1, wherein the liquid inlet pipeline comprises a liquid inlet main, a first liquid inlet branch and a second liquid inlet branch, the liquid inlet main is communicated with the liquid storage tank through the first liquid inlet branch and is communicated with the vaporizer through the second liquid inlet branch, a second control valve is arranged on the first liquid inlet branch, and a third control valve is arranged on the second liquid inlet branch.
3. An auxiliary nitrogen supply system as claimed in claim 2, wherein the number of the first liquid inlet branch circuits and the number of the second liquid inlet branch circuits are plural, a plurality of the first liquid inlet branch circuits are arranged in parallel, and a plurality of the second liquid inlet branch circuits are arranged in parallel.
4. The auxiliary nitrogen supply system according to claim 3, wherein the gas outlet pipeline comprises a gas outlet main, a first gas outlet branch and a second gas outlet branch, the first gas outlet branch and the second liquid inlet branch are communicated in a one-to-one correspondence manner, the second gas outlet branch is communicated with the vaporizer through the first gas outlet branch and is communicated with the buffer tank through the gas outlet main, and the first gas outlet branches are arranged in parallel and are communicated with the second gas outlet branch.
5. The auxiliary nitrogen supply system of claim 4, wherein a fourth control valve and a one-way valve are arranged on the first gas outlet branch, and a fifth control valve is arranged on the second gas outlet branch.
6. An auxiliary nitrogen supply system as claimed in claim 5, wherein said first control valve is a pneumatic membrane valve, and said second control valve, said third control valve, said fourth control valve and said fifth control valve are all low temperature ball valves.
7. An auxiliary nitrogen supply system according to any one of claims 1 to 6, wherein said number of said vaporizers is plural, and a plurality of said vaporizers are arranged in parallel.
8. The auxiliary nitrogen supply system according to any one of claims 1 to 6, wherein the gas supply line includes a gas supply main, a first gas supply branch line, and a second gas supply branch line, the second gas supply branch line communicates with the buffer tank through the first gas supply branch line, and communicates with the external device through the gas supply main, the second gas supply branch lines are plural in number, the second gas supply branch lines are provided in parallel, the first control valve is provided on the first gas supply branch line, and the pressure sensor is provided on the gas supply main.
9. The auxiliary nitrogen supply system of claim 8, wherein a plurality of said second gas supply branches are provided with a sixth control valve, and said sixth control valve is a low temperature ball valve.
10. An auxiliary nitrogen supply system according to any one of claims 1 to 6, wherein the control system comprises a PLC and an upper computer, the PLC is in communication connection with the first control valve, the upper computer is in communication connection with the pressure sensor, and the PLC is in communication connection with the upper computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221565874.8U CN217402295U (en) | 2022-06-21 | 2022-06-21 | Auxiliary nitrogen supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221565874.8U CN217402295U (en) | 2022-06-21 | 2022-06-21 | Auxiliary nitrogen supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217402295U true CN217402295U (en) | 2022-09-09 |
Family
ID=83147615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221565874.8U Active CN217402295U (en) | 2022-06-21 | 2022-06-21 | Auxiliary nitrogen supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217402295U (en) |
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2022
- 2022-06-21 CN CN202221565874.8U patent/CN217402295U/en active Active
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