A diaphragm compressor multi-inlet and exhaust port control system

Abstract

This utility model discloses a control system for multiple inlet and outlet ports of a diaphragm compressor, relating to the technical field of diaphragm compressor control systems. The system includes a compressor body with a PLC controller installed on it. This utility model utilizes multiple inlet and outlet units paired with a PLC controller. The PLC controller can open or close the corresponding inlet solenoid valves according to actual requirements, thereby achieving rapid switching of the gas source and meeting diverse production needs. Similarly, the PLC controller can open or close the corresponding outlet solenoid valves according to actual needs, enabling the cooled gas to be delivered to different storage devices, equipment, or processes, meeting the exhaust requirements in different scenarios and improving the system's applicability and flexibility. Before system operation, if the gas source type differs from the previous one, the purge ball valve and vent valve are opened to purge and discharge residual gas from the compressor body, ensuring the purity of the inlet gas and avoiding safety issues and quality impacts.

Description

Technical Field

[0001] This utility model relates to the technical field of diaphragm compressor control system, specifically a control system for multiple inlet and outlet ports of a diaphragm compressor. Background Technology

[0002] A diaphragm compressor is a gas device that increases the pressure of incoming gas before discharging it. It currently demonstrates its important value in various industries.

[0003] However, existing diaphragm compressor intake and exhaust systems lack flexibility in gas source selection. Most systems can only connect to a single gas source, making it difficult to quickly and easily switch between different types of gas sources to meet diverse production needs. For example, in some chemical production processes, different gas compositions may be required for different reaction stages, but existing systems struggle to achieve instant gas source switching. This often necessitates shutdowns for complex pipeline modifications and equipment adjustments, which not only consumes significant time and labor costs but also severely impacts production efficiency, leading to production interruptions and delays, and ultimately causing economic losses for the company.

[0004] Based on this, a multi-inlet and multi-outlet control system for a diaphragm compressor is provided, which can eliminate the drawbacks of existing systems. Utility Model Content

[0005] The purpose of this invention is to provide a control system for multiple inlet and outlet ports of a diaphragm compressor, so as to solve the problem of lack of flexibility in the selection of gas source in the inlet and outlet system of the diaphragm compressor in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A control system for multiple inlet and outlet ports of a diaphragm compressor includes a compressor body, on which a PLC controller is installed. The inlet end of the compressor body is connected to an inlet main pipeline, which is connected to a multi-inlet unit. The outlet end of the compressor body is connected to an outlet main pipeline, which is connected to an outlet end of a secondary cooler. The outlet end of the secondary cooler is connected to a multi-outlet unit.

[0008] Preferably, the multi-intake unit includes a main intake pipe, a purge pipe, an intake pipe, an intake pipe, and an intake pipe. The main intake pipe is connected to the intake end of the main intake pipe. The purge pipe, intake pipe, intake pipe, and intake pipe are all connected to the intake end of the main intake pipe. A purge ball valve, an intake solenoid valve, an intake solenoid valve, and an intake solenoid valve are respectively installed on the purge pipe, intake pipe, intake pipe, and intake pipe. The purge ball valve, intake solenoid valve, intake solenoid valve, and intake solenoid valve are all electrically connected to the PLC controller.

[0009] Preferably, a PT intake pressure gauge and a PIA intake pressure gauge are installed at the connection position between the first conduit and the main intake pipe, and the PT intake pressure gauge and the PIA intake pressure gauge are electrically connected to the PLC controller.

[0010] Preferably, the multi-exhaust unit includes a second main exhaust pipe, a vent pipe, an exhaust pipe, an exhaust pipe, an exhaust pipe, and an exhaust pipe. The vent pipe, exhaust pipe, exhaust pipe, and exhaust pipe are all connected to the exhaust end of the main exhaust pipe. A vent valve, an exhaust solenoid valve, an exhaust solenoid valve, and an exhaust solenoid valve are respectively installed on the vent pipe, exhaust pipe, exhaust pipe, and exhaust pipe. The vent valve, exhaust solenoid valve, exhaust solenoid valve, and exhaust solenoid valve are all electrically connected to the PLC controller.

[0011] Preferably, a PT exhaust pressure gauge and a PIA exhaust pressure gauge are installed on the exhaust main pipe, and the PT exhaust pressure gauge and the PIA exhaust pressure gauge are electrically connected to the PLC controller.

[0012] Preferably, the exhaust end of the compressor body is also connected to the inlet end of the return pipeline, the exhaust end of the return pipeline is connected to the main intake pipeline, a return valve is installed on the return pipeline, and the return valve is electrically connected to the PLC controller.

[0013] Preferably, an interstage pipeline is provided between each stage of the compressor body, and a first-stage cooler and a first-stage buffer tank are installed on the interstage pipeline.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model combines multiple air intake units and multiple air exhaust units with a PLC controller. The PLC controller can open or close the corresponding air intake solenoid valves according to actual requirements, thereby realizing rapid switching of air sources and meeting diverse production needs. The PLC controller can open or close the corresponding air exhaust solenoid valves according to actual needs, and can deliver the cooled gas to different storage devices, equipment or processes, meeting the exhaust requirements in different scenarios and improving the applicability and flexibility of the system. Before the system is running, if the type of air source is different from the previous one, the purge ball valve and vent valve are opened to purge and discharge the residual gas in the compressor body, ensuring the purity of the intake air and avoiding safety issues and quality impacts.

[0016] 2. This utility model achieves a high degree of automated control by combining a PT inlet pressure gauge, a PIA inlet pressure gauge, a PT exhaust pressure gauge, a PIA exhaust pressure gauge, a return pipeline, and a return valve with a PLC controller. From pressure monitoring and data analysis to valve adjustment and parameter control, everything is automatically completed by the PLC controller without frequent manual intervention. This not only greatly improves production efficiency and reduces the possibility of human error, but also reduces labor intensity. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure label annotations: 11. Compressor body; 12. Interstage piping; 121. First-stage cooler; 122. First-stage buffer tank; 13. Return piping; 131. Return valve; 14. Intake main piping; 15. Exhaust main piping; 151. Second-stage cooler; 21. Main intake piping one; 211. Purge piping; 212. Purge ball valve; 213. Intake piping one; 214. Intake solenoid valve one; 215. Intake piping two; 216. Intake solenoid valve two ; 217. Intake line three; 218. Intake solenoid valve three; 31. Main line two; 311. Vent line; 312. Vent valve; 313. Exhaust line one; 314. Exhaust solenoid valve one; 315. Exhaust line two; 316. Exhaust solenoid valve two; 317. Exhaust line three; 318. Exhaust solenoid valve three; 41. PT intake pressure gauge; 42. PIA intake pressure gauge; 43. PT exhaust pressure gauge; 44. PIA exhaust pressure gauge. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0020] In one embodiment, such as Figure 1As shown, a control system for multiple inlet and outlet ports of a diaphragm compressor includes a compressor body 11, on which a PLC controller is installed. The inlet end of the compressor body 11 is connected to an inlet main pipeline 14, which is connected to a multi-inlet unit. The outlet end of the compressor body 11 is connected to an outlet main pipeline 15, which is connected to an inlet end of a secondary cooler 151. The outlet end of the secondary cooler 151 is connected to a multi-outlet unit.

[0021] In this embodiment, the PLC controller issues instructions to open or close the corresponding valves according to the preset program and actual working conditions; the secondary cooler 151 cools the high-temperature and high-pressure gas to reduce its temperature so that it meets the requirements for subsequent use or storage; the multiple air intake units allow the system to flexibly select the air intake source according to different air source conditions; the multiple exhaust units allow the system to deliver the gas to different storage devices, equipment, or processes according to different air source conditions.

[0022] After the gas enters the compressor body 11, the compressed high-pressure gas is discharged from the exhaust end of the compressor body 11 and enters the exhaust main pipeline 15. The exhaust main pipeline 15 centrally transports the compressed gas to the secondary cooler 151. After being cooled by the secondary cooler 151, the gas is discharged from its outlet end and enters the multi-exhaust unit.

[0023] In an optional embodiment, the multi-intake unit includes a main intake pipe 21, a purge pipe 211, an intake pipe 213, an intake pipe 215, and an intake pipe 217. The main intake pipe 21 is connected to the intake end of the main intake pipe 14. The purge pipe 211, intake pipe 213, intake pipe 215, and intake pipe 217 are all connected to the intake end of the main intake pipe 21. The purge pipe 211, intake pipe 213, intake pipe 215, and intake pipe 217 are respectively equipped with a purge ball valve 212, an intake solenoid valve 214, an intake solenoid valve 216, and an intake solenoid valve 218. The purge ball valve 212, intake solenoid valve 214, intake solenoid valve 216, and intake solenoid valve 218 are all electrically connected to the PLC controller.

[0024] It should be noted that the PLC controller can flexibly select the air intake source according to the preset program and actual working conditions. For example, the PLC controller issues a command to open the air intake solenoid valve 214, so that the gas from this source enters the main intake pipe 21 through the air intake pipe 213; if it is necessary to switch the air source, the current air intake solenoid valve is closed and other air intake solenoid valves are opened.

[0025] If the gas used in the previous operation is the same type as the gas required this time, then no purging operation is needed; otherwise, a purging operation is required, and the purging ball valve 212 is opened to purge the gas inside the compressor body 11.

[0026] In an optional embodiment, a PT intake pressure gauge 41 and a PIA intake pressure gauge 42 are installed at the connection position between the main intake pipe 21 and the intake main pipe 14, and the PT intake pressure gauge 41 and the PIA intake pressure gauge 42 are electrically connected to the PLC controller.

[0027] It should be noted that the PT intake pressure gauge 41 and PIA intake pressure gauge 42 monitor the intake pressure in real time and feed the data back to the PLC controller. The PLC controller further adjusts the opening of the intake valve according to the intake pressure to ensure that the gas pressure entering the compressor body 11 is stable within a suitable range, thus ensuring the normal operation of the system.

[0028] In an optional embodiment, the multi-exhaust unit includes a second vent pipe 31, a vent pipe 311, an exhaust pipe 313, an exhaust pipe 315, and an exhaust pipe 317. The vent pipe 311, exhaust pipe 313, exhaust pipe 315, and exhaust pipe 317 are all connected to the exhaust end of the second vent pipe 311. The vent pipe 311, exhaust pipe 313, exhaust pipe 315, and exhaust pipe 317 are respectively equipped with a vent valve 312, an exhaust solenoid valve 314, an exhaust solenoid valve 316, and an exhaust solenoid valve 318. The vent valve 312, exhaust solenoid valve 314, exhaust solenoid valve 316, and exhaust solenoid valve 318 are all electrically connected to a PLC controller.

[0029] It should be noted that the PLC controller controls the opening or closing of corresponding valves according to actual needs, delivering the cooled gas to different storage devices, equipment, or processes. For example, when gas needs to be stored in a specific storage tank, the corresponding exhaust solenoid valve (such as exhaust solenoid valve 314) is opened; when the system needs to be vented or debugged, the vent valve 312 is opened to release the gas into the atmosphere.

[0030] In an optional embodiment, a PT exhaust pressure gauge 43 and a PIA exhaust pressure gauge 44 are installed on the exhaust main duct 15, and the PT exhaust pressure gauge 43 and the PIA exhaust pressure gauge 44 are electrically connected to the PLC controller.

[0031] It should be noted that the PT exhaust pressure gauge 43 and PIA exhaust pressure gauge 44 monitor the exhaust pressure in real time and feed the data back to the PLC controller. The PLC controller adjusts the operating parameters of the compressor body 11 or the opening of the exhaust valve according to the exhaust pressure to ensure that the exhaust pressure is stable within the set range.

[0032] In an optional embodiment, the exhaust end of the compressor body 11 is also connected to the intake end of the return pipe 13, the exhaust end of the return pipe 13 is connected to the main intake pipe 14, and a return valve 131 is installed on the return pipe 13, and the return valve 131 is electrically connected to the PLC controller.

[0033] It should be noted that when the exhaust pressure is too high or the system load is too large, the PLC controller controls the return valve 131 to open, allowing some of the compressed gas to flow back to the intake main pipe 14 through the return pipe 13 and re-participate in the compression process. This reduces the exhaust pressure, regulates the system load, and ensures the safe and stable operation of the compressor.

[0034] In an optional embodiment, an interstage pipeline 12 is provided between each stage of the compressor body 11, and a first-stage cooler 121 and a first-stage buffer tank 122 are installed on the interstage pipeline 12.

[0035] It should be noted that during the compression process, the gas temperature rises. The first-stage cooler 121 provides preliminary cooling to the gas after the first-stage compression, reducing the gas temperature and minimizing thermal damage to the equipment, while also improving compression efficiency. The first-stage buffer tank 122 stabilizes the gas pressure and flow rate, ensuring a more stable gas state before entering the next stage of compression, thus guaranteeing the continuity and stability of the compression process.

[0036] The above embodiment discloses a control system for multiple inlet and outlet ports of a diaphragm compressor. Before operation, if the gas used in the previous operation is the same type as the gas required this time, no purging operation is required; if they are different, a purging operation is required. After opening the purging ball valve 212 and the venting pipeline 311, the residual gas can be purged. After the purging is completed, the compressor can start production.

[0037] The PLC controller opens the intake solenoid valve of the corresponding air source, allowing the gas from that source to enter the main intake pipe 21 through the corresponding intake pipe; if the air source needs to be changed, the current intake solenoid valve is closed and other suitable intake solenoid valves are opened.

[0038] The PT intake pressure gauge 41 and PIA intake pressure gauge 42 feed the intake pressure data back to the PLC controller. Based on this data, the PLC controller dynamically adjusts the opening of the intake valve or selects a more suitable gas source to ensure that the gas pressure entering the compressor is stable within the optimal range, thus guaranteeing the stable operation of the compressor.

[0039] After the selection of multiple intake units and pressure regulation, the gas smoothly enters the intake end of the compressor body 11 through the intake main pipe 14, and the compression stage begins.

[0040] The compressed high-pressure gas is discharged from the exhaust end of the compressor body 11, enters the exhaust main pipeline 15, and is centrally transported to the secondary cooler 151. The cooled gas is discharged from the exhaust end of the secondary cooler 151 and enters the multi-exhaust unit.

[0041] When gas needs to be stored in a specific tank, the PLC controller opens the corresponding exhaust solenoid valve.

[0042] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A diaphragm compressor multiple suction and discharge port control system, characterized by, The compressor body (11) is equipped with a PLC controller. The air inlet of the compressor body (11) is connected to the main air inlet pipe (14), which is connected to a multi-inlet unit. The air outlet of the compressor body (11) is connected to the main exhaust pipe (15), which is connected to the air inlet of the secondary cooler (151). The air outlet of the secondary cooler (151) is connected to a multi-exhaust unit.

2. A diaphragm compressor multiple suction and discharge port control system in accordance with claim 1, wherein, The multi-intake unit includes a main intake pipe (21), a purge pipe (211), an intake pipe (213), an intake pipe (215), and an intake pipe (217). The main intake pipe (21) is connected to the intake end of the main intake pipe (14). The purge pipe (211), intake pipe (213), intake pipe (215), and intake pipe (217) are all connected to the intake end of the main intake pipe (211). The purge ball valve (212), intake solenoid valve one (214), intake solenoid valve two (216), and intake solenoid valve three (218) are respectively installed on the purge pipe (211), intake pipe one (213), intake pipe two (215), and intake solenoid valve three (218). The purge ball valve (212), intake solenoid valve one (214), intake solenoid valve two (216), and intake solenoid valve three (218) are all electrically connected to the PLC controller.

3. A diaphragm compressor multiple suction and discharge port control system in accordance with claim 2, wherein, A PT intake pressure gauge (41) and a PIA intake pressure gauge (42) are installed at the connection position between the main intake pipe (21) and the intake main pipe (14). The PT intake pressure gauge (41) and the PIA intake pressure gauge (42) are electrically connected to the PLC controller.

4. A diaphragm compressor multiple suction and discharge port control system in accordance with claim 1, wherein, The multi-exhaust unit includes a second venting pipe (31), a venting pipe (311), an exhaust pipe (313), an exhaust pipe (315), and an exhaust pipe (317). The venting pipe (311), the exhaust pipe (313), the exhaust pipe (315), and the exhaust pipe (317) are all connected to the exhaust end of the second venting pipe (31). The venting pipe (311), the exhaust pipe (313), the exhaust pipe (315), and the exhaust pipe (317) are respectively equipped with a venting valve (312), an exhaust solenoid valve (314), an exhaust solenoid valve (316), and an exhaust solenoid valve (318). The venting valve (312), the exhaust solenoid valve (314), the exhaust solenoid valve (316), and the exhaust solenoid valve (318) are all electrically connected to the PLC controller.

5. A diaphragm compressor multiple suction and discharge port control system in accordance with claim 1 wherein, The exhaust main pipe (15) is equipped with a PT exhaust pressure gauge (43) and a PIA exhaust pressure gauge (44), which are electrically connected to the PLC controller.

6. The control system for multiple inlet and outlet ports of a diaphragm compressor according to claim 1, characterized in that, The exhaust end of the compressor body (11) is also connected to the inlet end of the return pipe (13). The exhaust end of the return pipe (13) is connected to the main intake pipe (14). A return valve (131) is installed on the return pipe (13). The return valve (131) is electrically connected to the PLC controller.

7. A diaphragm compressor multiple suction and discharge port control system in accordance with claim 1 wherein, The compressor body (11) has an interstage pipeline (12) between each stage of the air chamber, and a first-stage cooler (121) and a first-stage buffer tank (122) are installed on the interstage pipeline (12).

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