Pressure equalizing auxiliary device of air compressor

Abstract

The utility model provides a pressure equalizing auxiliary device for an auxiliary air compressor, which belongs to the technical field of tank pressurization and comprises an auxiliary air compressor, a pressurization component and an air source processing component which are sequentially communicated through a connecting pipeline. The exhaust end of the gas source processing assembly is connected with a plurality of pressure stabilizing pipes, and each pressure stabilizing pipe is correspondingly connected with a molecular sieve adsorber; a first control valve is arranged on each pressure stabilizing pipe; a first pressure sensor is arranged on the molecular sieve adsorber; the pressure equalizing auxiliary device of the auxiliary air compressor further comprises a control assembly. The control assembly is connected with the multiple first control valves and the multiple first pressure sensors. And when the pressure in the molecular sieve adsorber is lower than a preset value, the control assembly controls the corresponding first control valve to be opened. According to the pressure equalizing auxiliary device for the auxiliary air compressor, pressure fluctuation in the molecular sieve adsorber can be avoided, potential safety hazards are reduced, meanwhile, time cost is saved, and production lag is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of tank pressurization, and more specifically relates to a pressure equalization auxiliary device for an air compressor. Background Art

[0002] Molecular sieve adsorbers are used to absorb impurities and moisture in the gas. When switching, the molecular sieve adsorber must first be pressure-equalized to ensure the smooth operation of the entire device. If the molecular sieve adsorber is not pressure-equalized when switching, the air flow and pressure of the device will suddenly fluctuate in order to fill the internal space of the container.

[0003] In the prior art, before using the molecular sieve adsorber, the air compressor in the main system is usually used to perform a pressure replenishment operation to avoid sudden fluctuations in air flow and pressure. However, for molecular sieve adsorbers with a large pressure fluctuation range, when the pressure is replenished only by the air compressor in the main system, there are often problems such as insufficient pressure and a long pressure replenishment time, and there are also certain safety hazards. Utility Model Content

[0004] The utility model aims to provide an air compressor pressure equalization auxiliary device, aiming to solve the technical problems of insufficient pressure, long pressure replenishment time and potential safety hazards in the process of replenishing pressure of a molecular sieve adsorber.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide an air compressor pressure equalization auxiliary device, comprising an auxiliary air compressor, a pressurizing component and an air source processing component connected in sequence through a connecting pipeline; the exhaust end of the air source processing component is connected to a plurality of voltage-stabilizing tubes, each of which is correspondingly connected to a molecular sieve adsorber; each of the voltage-stabilizing tubes is provided with a first control valve; the molecular sieve adsorber is provided with a first pressure sensor;

[0006] The air compressor pressure equalization auxiliary device further includes a control component; the control component is connected to the plurality of the first control valves and the plurality of the first pressure sensors respectively;

[0007] Wherein, when the pressure in the molecular sieve adsorber is lower than a preset value, the control component controls the corresponding first control valve to open.

[0008] In one possible implementation, the exhaust end of the air source processing component is connected to the distribution plate through a first pipeline, and the distribution plate is connected to an air outlet pipe and an air distribution pipe. The air outlet pipe is used to discharge the air flow in the distribution plate, and the exhaust end of the air source processing component is connected to the multiple voltage-stabilizing tubes through the air distribution pipe.

[0009] In some embodiments, a second pressure sensor is disposed on the first pipeline, and the second pressure sensor is connected to the control component.

[0010] Exemplarily, a first exhaust control valve is provided on the exhaust pipe, a second control valve is provided on the gas distribution pipe, and the second control valve and the first exhaust control valve are respectively connected to the control assembly.

[0011] In one possible implementation, the pressurizing component includes multiple stages of boosting cylinder devices connected in sequence, the air inlet end of the first stage of the boosting cylinder device is connected to the exhaust end of the auxiliary air compressor, and the exhaust end of each stage of the boosting cylinder device is connected to a second pipeline, and multiple second pipelines are respectively connected to the air inlet end of the air source processing component.

[0012] In some embodiments, the exhaust end of the auxiliary air compressor is also connected to the air inlet end of the air source processing assembly through a third pipeline.

[0013] Exemplarily, each of the second pipelines is provided with a first one-way valve and a third control valve, and the third pipeline is provided with a second one-way valve and a fourth control valve; the third control valve and the fourth control valve are connected to the control assembly, respectively.

[0014] In some embodiments, a pressure detection gauge is also provided at the exhaust end of each stage of the boost cylinder device.

[0015] In a possible implementation, a manual ball valve and a flow sensor are further provided on the connecting pipeline between the auxiliary air compressor and the pressurizing component.

[0016] In a possible implementation, each of the molecular sieve adsorbers is further provided with an exhaust pipe, the exhaust pipe is provided with a second exhaust control valve, and the second exhaust control valve is connected to the control component.

[0017] Compared with the prior art, the solution shown in the embodiment of the present application can monitor the pressure value in the molecular sieve adsorber in real time through the first pressure sensor, and when the pressure in the molecular sieve adsorber is lower than the preset value, the first control valve is opened to assist the air compressor and the pressurizing component to convey the pressurized airflow to the corresponding molecular sieve adsorber, so that the pressure in the molecular sieve adsorber is always maintained within the preset range, avoiding pressure fluctuations in the molecular sieve adsorber, reducing safety hazards, compensating for the problem of insufficient pressure, and at the same time eliminating the installation of a temporary pressure replenishing device and the waste of pressure replenishing time, saving time cost, and avoiding the problem of production delays due to pressure fluctuations in the molecular sieve adsorber. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic structural diagram of an air compressor pressure equalizing auxiliary device provided in an embodiment of the utility model.

[0020] In the figure:

[0021] 1. Auxiliary air compressor; 11. Third pipeline; 111. Second check valve; 112. Fourth control valve;

[0022] 2. Pressurizing assembly; 21. Pressurizing cylinder equipment; 22. Second pipeline; 221. First check valve; 222. Third control valve; 223. Pressure detection gauge;

[0023] 3. Gas source processing components;

[0024] 4. Molecular sieve adsorber; 41. First pressure sensor; 42. Exhaust pipe; 421. Second exhaust control valve;

[0025] 5. voltage regulator; 51. first control valve;

[0026] 6. Distribution plate; 61. First pipeline; 611. Second pressure sensor; 62. Air outlet pipe; 621. First exhaust control valve; 63. Air distribution pipe; 631. Second control valve;

[0027] 7. Manual ball valve;

[0028] 8. Flow sensor;

[0029] 9. Gas storage tank;

[0030] 10. Main air compressor assembly. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or indirectly on the other element. It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0034] See also Figure 1 , the air compressor pressure equalization auxiliary device provided by the utility model is now described. The air compressor pressure equalization auxiliary device includes an auxiliary air compressor 1, a pressurizing component 2 and an air source processing component 3 which are sequentially connected through a connecting pipeline; the exhaust end of the air source processing component 3 is connected to a plurality of voltage-stabilizing tubes 5, and each voltage-stabilizing tube 5 is correspondingly connected to a molecular sieve adsorber 4; each voltage-stabilizing tube 5 is provided with a first control valve 51; the molecular sieve adsorber 4 is provided with a first pressure sensor 41; the air compressor pressure equalization auxiliary device also includes a control component; the control component is respectively connected to a plurality of first control valves 51 and a plurality of first pressure sensors 41; wherein, when the pressure in the molecular sieve adsorber 4 is lower than a preset value, the control component controls the corresponding first control valve 51 to open.

[0035] It should be understood that the molecular sieve adsorber 4 in the present application is also connected to the main air compressor assembly 10 in the oxygen production system, and the main air compressor assembly 10 is used to transport raw air into the molecular sieve adsorber to prepare oxygen; the auxiliary air compressor 1 can make up for the problem of insufficient inflation pressure in the original oxygen production system. During the preparation process, the main air compressor assembly 10 is connected to one of the molecular sieve adsorbers 4 to put the oxygen production system into working state. At this time, the auxiliary air compressor 1 can be connected to another spare molecular sieve adsorber 4 to introduce gas into the spare molecular sieve adsorber 4, thereby avoiding pressure fluctuations in the spare molecular sieve adsorber 4 and reducing safety hazards.

[0036] Optionally, the air inlet end of the auxiliary air compressor 1 is connected to a gas storage tank 9 , and the gas storage tank 9 is used to store spare gas so that the auxiliary air compressor 1 can pressurize the molecular sieve adsorber 4 .

[0037] It should be noted that the control component used in the present application can be a control device implemented by a PLC program controller, and the first pressure sensor 41 can transmit the collected pressure information to the control component in a timely manner so that the control component can timely understand the pressure value in the molecular sieve adsorber 4; the control component can also control the first control valve 51 to open, so that the pressurized gas flow can flow into the corresponding molecular sieve adsorber 4; and the control component realizes the pressure information and collection function of the first pressure sensor 41, and controls the opening and closing function of the first control valve 51 through multiple control elements, and the control principle and integrated connection method of each control element belong to the prior art, and the connection method and principle of the control component with the first control valve 51 and the first pressure sensor 41 belong to the prior art, which will not be repeated here.

[0038] In addition, the air source processing component 3 used in the present application includes a filter, a pressure reducing valve and an oil mist collector connected in sequence. The air source processing component 3 can separate the moisture in the output air flow of the auxiliary air compressor 1 to ensure the dryness of the pressurized air flow.

[0039] It should be understood that the auxiliary air compressor 1 is used to initially pressurize the airflow to form a low-pressure airflow; since the pressures required in different molecular sieve adsorbers 4 are different, the output airflow of the auxiliary air compressor 1 can be secondary pressurized by the pressurizing component 2 to meet the pressures required by different molecular sieve adsorbers 4.

[0040] Optionally, the first control valve 51, the second control valve 631, the third control valve 222 and the fourth control valve 112 used in the present application may be solenoid control valves, and each valve body may be controlled by a control component to realize the on-off of the airflow in the corresponding pipeline.

[0041] Compared with the prior art, the air compressor pressure equalization auxiliary device provided by the utility model can monitor the pressure value in the molecular sieve adsorber 4 in real time through the first pressure sensor 41, and when the pressure in the molecular sieve adsorber 4 is lower than the preset value, the first control valve 51 is opened to assist the air compressor 1 and the pressurizing component 2 to convey the pressurized airflow to the corresponding molecular sieve adsorber 4, so that the pressure in the molecular sieve adsorber 4 is always maintained within the preset range, avoiding pressure fluctuations in the molecular sieve adsorber 4, reducing safety hazards, and compensating for the problem of insufficient pressure. The air compressor pressure equalization auxiliary device provided by the utility model can also eliminate the installation of a temporary pressure replenishing device and the waste of pressure replenishing time, saving time cost, and avoiding the problem of production delays caused by pressure fluctuations in the molecular sieve adsorber 4.

[0042] See also Figure 1In some possible embodiments, the exhaust end of the air source processing component 3 is connected to the distribution plate 6 through the first pipeline 61, and the distribution plate 6 is connected with an outlet pipe 62 and an air distribution pipe 63. The outlet pipe 62 is used to discharge the air flow in the distribution plate 6, and the exhaust end of the air source processing component 3 is connected to multiple voltage-stabilizing tubes 5 through the air distribution pipe 63.

[0043] Specifically, the exhaust end of the gas source processing assembly 3 is connected to the plurality of voltage-stabilizing tubes 5 via the first pipeline 61 , the distribution plate 6 and the gas distribution pipe 63 .

[0044] By setting a distribution plate 6, the airflow output from the air source processing component 3 can be diverted. When the auxiliary air compressor 1 initially starts to work, the discharged airflow pressure value is unstable, or the output airflow pressure value is far from meeting the expected pressure value, it can be discharged through the air outlet pipe 62; when the output airflow pressure is stable and meets expectations, it can be passed into the corresponding pressure-stabilizing tube 5 through the air distribution pipe 63.

[0045] In order to avoid potential safety hazards caused by the airflow discharged from the outlet pipe 62 after being directly discharged into the atmosphere, an exhaust gas treatment tank may be provided at the outlet end of the outlet pipe 62 to collect the exhaust gas for centralized treatment.

[0046] See also Figure 1 In some embodiments, a second pressure sensor 611 is provided on the first pipeline 61, and the second pressure sensor 611 is connected to the control component.

[0047] The second pressure sensor 611 is provided to monitor the air flow pressure on the first pipeline 61 in real time, so that when the output air flow pressure is stable and meets expectations, it is passed into the corresponding pressure-stabilizing tube 5 through the air distribution pipe 63 .

[0048] See also Figure 1 , illustratively, a first exhaust control valve 621 is provided on the exhaust pipe 62, a second control valve 631 is provided on the gas distribution pipe 63, and the second control valve 631 and the first exhaust control valve 621 are respectively connected to the control components.

[0049] The second control valve 631 and the first exhaust control valve 621 are provided to control the on-off of the airflow on the air outlet pipe 62 and the air distribution pipe 63 respectively.

[0050] Specifically, after the second pressure sensor 611 collects the pressure information of the exhaust end of the gas source processing component 3, it is transmitted to the control component so that the control component controls the second control valve 631 or the first exhaust control valve 621 to open, thereby connecting the gas outlet pipe 62 or the gas distribution pipe 63.

[0051] See also Figure 1In some possible embodiments, the pressurizing component 2 includes multiple stages of boosting cylinder devices 21 connected in sequence, the air inlet end of the first stage boosting cylinder device 21 is connected to the exhaust end of the auxiliary air compressor 1, and the exhaust end of each stage of the boosting cylinder device 21 is connected to the second pipeline 22, and the multiple second pipelines 22 are respectively connected to the air inlet end of the air source processing component 3.

[0052] By setting up a multi-stage boosting cylinder device 21, the airflow discharged from the auxiliary air compressor 1 is boosted in multiple stages to obtain airflows with different pressure values, so that the pressurized airflow can be transported to the corresponding molecular sieve adsorber 4 through the corresponding second pipeline 22 and the corresponding pressure-stabilizing tube 5.

[0053] See also Figure 1 In some embodiments, the exhaust end of the auxiliary air compressor 1 is also connected to the air inlet end of the air source processing component 3 through the third pipeline 11.

[0054] By providing the third pipeline 11, the airflow pressurized by the auxiliary air compressor 1 is directly delivered to the corresponding molecular sieve adsorber 4, so as to realize the delivery of low-pressure airflow.

[0055] See also Figure 1 , illustratively, each second pipeline 22 is respectively provided with a first one-way valve 221 and a third control valve 222, and the third pipeline 11 is provided with a second one-way valve 111 and a fourth control valve 112; the third control valve 222 and the fourth control valve 112 are respectively connected to the control assembly.

[0056] By setting the first one-way valve 221 and the second one-way valve 111, the pressurized airflow can flow to the corresponding air source processing component 3 along a predetermined route, thereby preventing the pressurized airflow from flowing back into other booster cylinder devices 21 and affecting the operation of the remaining booster cylinder devices 21.

[0057] See also Figure 1 In some embodiments, a pressure detection gauge 223 is also provided at the exhaust end of each stage of the boost cylinder device 21 .

[0058] By setting the pressure detection meter 223, the operating status of each level of the booster cylinder equipment 21 can be detected in real time to ensure the normal operation of each level of the booster cylinder equipment 21.

[0059] See also Figure 1 In some possible embodiments, a manual ball valve 7 and a flow sensor 8 are further provided on the connecting pipeline between the auxiliary air compressor 1 and the pressurizing component 2 .

[0060] By setting a manual ball valve 7, the manual switch of the device is realized, so as to control the air flow in each connecting pipeline; by setting a flow sensor 8, the flow rate of the output air flow of the auxiliary air compressor 1 is monitored to ensure the normal operation of the device. Optionally, the flow sensor 8 is connected to the control component so that the control component can collect the flow rate of the output air flow of the auxiliary air compressor 1 in time.

[0061] See also Figure 1 In some possible embodiments, each molecular sieve adsorber 4 is further provided with an exhaust pipe 42 , and the exhaust pipe 42 is provided with a second exhaust control valve 421 , and the second exhaust control valve 421 is connected to the control component.

[0062] By providing the exhaust pipe 42 and the second exhaust control valve 421 , when the pressure value in the molecular sieve adsorber 4 exceeds a preset range, the molecular sieve adsorber 4 is depressurized to reduce the pressure fluctuation in the molecular sieve adsorber 4 .

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Air compressor pressure equalization auxiliary device, characterized in that: The invention comprises an auxiliary air compressor (1), a pressurizing component (2) and an air source processing component (3) which are connected in sequence through a connecting pipeline; the exhaust end of the air source processing component (3) is connected to a plurality of voltage-stabilizing tubes (5), each of which is correspondingly connected to a molecular sieve adsorber (4); each of the voltage-stabilizing tubes (5) is provided with a first control valve (51); and the molecular sieve adsorber (4) is provided with a first pressure sensor (41); The air compressor pressure equalization auxiliary device further comprises a control component; the control component is respectively connected to a plurality of the first control valves (51) and a plurality of the first pressure sensors (41); Wherein, when the pressure in the molecular sieve adsorber (4) is lower than a preset value, the control component controls the corresponding first control valve (51) to open.

2. The air compressor pressure equalization auxiliary device according to claim 1, characterized in that: The exhaust end of the air source processing component (3) is connected to the distribution plate (6) through a first pipeline (61); the distribution plate (6) is connected to an exhaust pipe (62) and an air distribution pipe (63); the exhaust pipe (62) is used to discharge the air flow in the distribution plate (6); the exhaust end of the air source processing component (3) is connected to the plurality of voltage-stabilizing tubes (5) through the air distribution pipe (63).

3. The air compressor pressure equalization auxiliary device according to claim 2, characterized in that: The first pipeline (61) is provided with a second pressure sensor (611), and the second pressure sensor (611) is connected to the control component.

4. The air compressor pressure equalization auxiliary device according to claim 2 or 3, characterized in that: The air outlet pipe (62) is provided with a first exhaust control valve (621), the air distribution pipe (63) is provided with a second control valve (631), and the second control valve (631) and the first exhaust control valve (621) are respectively connected to the control assembly.

5. The air compressor pressure equalization auxiliary device according to claim 1, characterized in that: The pressurizing component (2) comprises a plurality of stages of sequentially connected booster cylinder devices (21), wherein the air inlet end of the first stage of the booster cylinder device (21) is connected to the exhaust end of the auxiliary air compressor (1), and the exhaust end of each stage of the booster cylinder device (21) is connected to a second pipeline (22), and a plurality of the second pipelines (22) are respectively connected to the air inlet end of the air source processing component (3).

6. The air compressor pressure equalization auxiliary device according to claim 5, characterized in that: The exhaust end of the auxiliary air compressor (1) is also connected to the air inlet end of the air source processing component (3) through a third pipeline (11).

7. The air compressor pressure equalization auxiliary device according to claim 6, characterized in that: Each of the second pipelines (22) is provided with a first one-way valve (221) and a third control valve (222), and the third pipeline (11) is provided with a second one-way valve (111) and a fourth control valve (112); the third control valve (222) and the fourth control valve (112) are respectively connected to the control assembly.

8. The air compressor pressure equalization auxiliary device according to claim 7, characterized in that: The exhaust end of each stage of the boost cylinder device (21) is also provided with a pressure detection gauge (223).

9. The air compressor pressure equalization auxiliary device according to claim 1, characterized in that: A manual ball valve (7) and a flow sensor (8) are also provided on the connecting pipeline between the auxiliary air compressor (1) and the pressurizing component (2).

10. The air compressor pressure equalization auxiliary device according to claim 1, characterized in that: Each of the molecular sieve adsorbers (4) is also provided with an exhaust pipe (42), and the exhaust pipe (42) is provided with a second exhaust control valve (421), and the second exhaust control valve (421) is connected to the control component.

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