Temperature centralized monitoring device for high-pressure air compressor

Abstract

The utility model belongs to the field of high-pressure air compressor temperature monitoring, and particularly relates to a temperature centralized monitoring device for a high-pressure air compressor, which comprises a control loop, and a power supply module, an air compressor, a temperature probe group, a temperature centralized monitoring control box and a master control cabinet which are connected in sequence, the master control cabinet comprises a PLC connected to a control loop, a touch screen, a control cabinet power supply, a communication module, a temperature centralized monitoring screen and an indicating lamp module. The touch screen and the temperature centralized monitoring screen are embedded in a back plate of the master control cabinet; the PLC is connected with the control loop, and the temperature centralized monitoring screen is connected with the communication module; the communication module is connected with the PLC; the touch screen is connected with the PLC through a communication transmission line; the indicating lamp module is connected into the control loop; and the control cabinet power supply is respectively in power supply connection with the temperature centralized monitoring screen, the communication module, the PLC and the touch screen. Compared with the prior art, the utility model has the advantages of light and small structure, simple and flexible operation, stable system work and strong corrosion resistance.

Description

Technical Field

[0001] The utility model belongs to the field of temperature monitoring of high-pressure air compressors, in particular to a centralized temperature monitoring device for high-pressure air compressors. Background Art

[0002] The high-pressure air compressor system provides the high-pressure air source for the high-pressure air gun excitation during digital seismic operations, enabling comprehensive surveys of marine geological structures and in-depth research into basin evolution, structural types, and tectonic patterns. When the high-pressure air compressor is operating normally, the inlet and outlet air temperatures at all levels, as well as the inlet and outlet water temperatures of the pipelines, require real-time monitoring to provide timely information on the compressor's operating status and working conditions. During normal operation, on-duty personnel enter the high-pressure air compressor room every half hour to read the meters. Under normal conditions, the inlet and outlet air temperatures at all levels can reach 50-300°C, posing a potential burn risk to meter readers. For these reasons, temperature monitoring was upgraded from the original mechanical thermometer to a digital one. Initially, this upgrade made it much more convenient to use than the previous mechanical thermometer, which required bending down to read the meter in a confined space. After completing their normal inspections, on-duty personnel only need to read the meter on the centrally displayed digital thermometer dial. Due to the large number of digital thermometers, it is relatively inconvenient to remove the batteries. The subsequent problem is that after the digital thermometer has not been used for a long time, there will be problems such as the dial getting damp, the digital display being blurred, and the digital display being damaged. Therefore, it is particularly important to research and develop a small, lightweight, easy-to-control, PLC-controlled centralized temperature monitoring device for multiple high-pressure air compressors. Utility Model Content

[0003] The purpose of the utility model is to provide a compact, lightweight, easy-to-operate centralized temperature monitoring device for centralized temperature monitoring of multiple high-pressure air compressors, so as to overcome the defects of the digital thermometer monitoring in the above-mentioned background technology.

[0004] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a centralized temperature monitoring device for a high-pressure air compressor, characterized by comprising: a control circuit and a power supply module, an air compressor, a temperature probe group, a centralized temperature monitoring control box and a main control cabinet connected in sequence;

[0005] The main control cabinet includes: a PLC connected to the control loop, a touch screen, a control cabinet power supply, a communication module, a centralized temperature monitoring screen, and an indicator light module;

[0006] The touch screen and the centralized temperature monitoring screen are both embedded on the back panel of the main control cabinet;

[0007] The PLC is connected to the control circuit arranged in the temperature centralized control box through a communication transmission line, and the temperature centralized monitoring screen is connected to the communication module through a communication cable A; the communication module is connected to the PLC through a communication cable B;

[0008] The touch screen is connected to the PLC via a communication transmission line to enable the touch screen to modify the internal parameters of the PLC and select the control instructions;

[0009] The indicator light module is arranged on the back panel of the main control cabinet and is connected to the control circuit;

[0010] The control cabinet power supply is respectively connected to the temperature centralized monitoring screen, communication module, PLC and touch screen to provide a 24V voltage for operation.

[0011] The control circuit includes: circuit breaker SW1, circuit breaker SW2, circuit breaker SW3, fuse FU1, fuse FU2, relay KA1 and five-hole socket arranged in the temperature centralized monitoring control box;

[0012] The input end of the circuit breaker SW1 is connected to a 230V AC voltage, and the output end is connected to a five-hole socket through the fuse FU1 on the live wire and the fuse FU2 on the neutral wire respectively;

[0013] The switching power supply A and the switching power supply B are connected in parallel between the fuse and the five-hole socket, and form a first branch and a second branch respectively;

[0014] The live wire input end of the switching power supply A is provided with a circuit breaker SW2, and the output end is connected to the temperature centralized monitoring screen and the communication module through the terminal box;

[0015] The live wire input end of the switching power supply B is provided with a relay KA1 and a circuit breaker SW3 in sequence, and the output end is connected to the PLC and the touch screen respectively.

[0016] The centralized temperature monitoring control box comprises: a box shell and a DIN rail, a plug-in pre-insulated terminal and a multi-strand copper core wire arranged in the box shell;

[0017] The DIN rail is fixed to the bottom of the box housing, and a plurality of circuit breaker mounting seats corresponding to the installation of circuit breakers SW1, SW2, and SW3 are clamped in the slots of the DIN rail; a plurality of fuse mounting seats corresponding to the installation of fuses FU1 and FU2; and a relay mounting seat corresponding to the installation of relay KA1;

[0018] The wiring ports corresponding to the components respectively arranged on the circuit breaker mounting seat, the fuse mounting seat and the relay mounting seat are connected to the plug-type pre-insulated terminals through multi-strand copper core wires;

[0019] Wires are led out from one end of the probe wiring of the temperature probe group and fixed to the plug-in pre-insulated terminals in the corresponding temperature centralized monitoring box by screws;

[0020] The plug-in pre-insulated terminal is connected to a terminal corresponding to an analog input interface corresponding to a PLC of a main control cabinet via a communication line.

[0021] The indicator light module includes: a power indicator light connected to the control circuit, a control power indicator light, an emergency response indicator light, and an alarm indicator light;

[0022] The power indicator light, control power indicator light, and emergency response indicator light are arranged side by side on the back panel of the main control cabinet, and the input ends are connected to the live wire of the control circuit, and the output ends are connected to the neutral wire of the control circuit to form a loop;

[0023] The alarm indicator light is connected to the outside of the main control cabinet through a connecting rod and is connected to the PLC through a connecting wire inside the connecting rod;

[0024] Relay switches are provided on the circuits of the control power indicator light, the emergency response indicator light and the alarm indicator light, and the relays corresponding to the relay switches are connected to the PLC to realize the on-off setting of the indicator lights.

[0025] The temperature probe group includes: a multi-stage entry temperature probe, a multi-stage separation temperature probe, an inlet water temperature probe, and an outlet water temperature probe;

[0026] The multi-stage inlet temperature probe, the multi-stage separation temperature probe, the inlet water temperature probe and the outlet water temperature probe are independently arranged;

[0027] One side of the probes of all probes is fixed to the temperature collection ports of each level of the air compressor by nuts, and the probe wiring on the other side is fixed to the plug-in pre-insulated terminals in the corresponding temperature centralized monitoring box by screws, so as to connect with the corresponding terminals of the PLC analog input interface, so as to transmit the corresponding temperature parameters of each level to the PLC to monitor the multi-stage inlet temperature, multi-stage separation temperature, water inlet temperature and water outlet temperature of the air compressor.

[0028] The centralized temperature monitoring control box, the air compressor, and the temperature probe group are all provided in plurality, and the corresponding quantities are the same.

[0029] The box shell is an ABS shell and is fixed to the corresponding air compressor by bolts to improve the corrosion resistance of the temperature centralized monitoring control box.

[0030] The control cabinet power supply includes: switching power supply A and switching power supply B;

[0031] The switching power supply A is connected to the temperature centralized monitoring screen and the communication module through the control circuit to convert the AC230V voltage into DC24V to power the temperature centralized monitoring screen and the communication module;

[0032] The switching power supply B is connected to the PLC and the touch screen respectively through the control loop to convert the AC230V voltage into DC24V to power the PLC and the touch screen.

[0033] The utility model has the following beneficial effects and advantages:

[0034] 1. Compared with existing similar technologies, the utility model has the advantages of light and compact structure, simple and flexible operation, stable system operation and strong corrosion resistance.

[0035] 2. The temperature probes at each level of the temperature probe group of this utility model work independently. Problems with a single interface will not affect other interfaces, which can maximize the high concentration of equipment monitoring results. At the same time, the independence and flexibility between each level make it easy to compare monitoring results, efficiently find abnormal fault points, and eliminate them.

[0036] 3. The utility model can realize the centralized monitoring function of temperatures at all levels of multiple high-pressure air compressors, avoiding the problem of operators getting their arms burned when reading meters. After upgrading and modification, it can be widely used on similar scientific research vessels and marine engineering ships. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the planar structure of an embodiment of the present utility model;

[0038] Figure 2 This is the electrical schematic diagram of the utility model. DETAILED DESCRIPTION

[0039] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0040] like Figure 1 FIG. 1 is a schematic diagram of a planar structure of an embodiment of the present invention. The present invention provides a centralized temperature monitoring device for a high-pressure air compressor, comprising: a control circuit and a power module, an air compressor, a temperature probe group, a centralized temperature monitoring control box, and a main control cabinet connected in sequence;

[0041] The main control cabinet includes: PLC connected to the control loop, touch screen, control cabinet power supply, communication module, centralized temperature monitoring screen, and indicator light module;

[0042] The touch screen and centralized temperature monitoring screen are both embedded in the back panel of the main control cabinet;

[0043] The PLC is connected to the control circuit arranged in the temperature centralized control box through a communication transmission line, and the temperature centralized monitoring screen is connected to the communication module through a communication cable A; the communication module is connected to the PLC through a communication cable B;

[0044] The touch screen is connected to the PLC through a communication transmission line to enable the touch screen to modify the internal parameters of the PLC and select the control instructions;

[0045] The indicator light module is located on the back panel of the main control cabinet and is connected to the control circuit;

[0046] Control cabinet power supply, including: switching power supply A and switching power supply B;

[0047] The switching power supply A is connected to the temperature centralized monitoring screen and the communication module through the control circuit to convert the AC230V voltage into DC24V to power the temperature centralized monitoring screen and the communication module;

[0048] The switching power supply B is connected to the PLC and the touch screen respectively through the control circuit to convert the AC230V voltage into DC24V to power the PLC and the touch screen.

[0049] like Figure 2 The figure shows the electrical principle diagram of the present invention, wherein the control circuit includes: circuit breaker SW1, circuit breaker SW2, circuit breaker SW3, fuse FU1, fuse FU2, relay KA1 and five-hole socket arranged in the temperature centralized monitoring control box;

[0050] The input end of the circuit breaker SW1 is connected to a 230V AC voltage, and the output end is connected to a five-hole socket through fuse FU1 on the live wire and fuse FU2 on the neutral wire respectively;

[0051] Switching power supply A and switching power supply B are connected in parallel between the fuse and the five-hole socket, and form a first branch and a second branch respectively;

[0052] A circuit breaker SW2 is provided at the live wire input end of the switching power supply A, and the output end is connected to the temperature centralized monitoring screen and the communication module through the terminal box;

[0053] The live wire input end of the switching power supply B is equipped with relay KA1 and circuit breaker SW3 in sequence, and the output end is connected to the PLC and touch screen respectively.

[0054] In such Figure 2 The right half of the circuit shown is an extended circuit, which can be connected in parallel to add components such as indicator lights and relays to form a complete circuit.

[0055] The centralized temperature monitoring control box includes: a box shell and a DIN rail, plug-in pre-insulated terminals and multi-strand copper core wires arranged inside the box shell;

[0056] The DIN rail is fixed to the bottom of the box housing. In the slots of the DIN rail, there are multiple circuit breaker mounting bases for mounting circuit breakers SW1, SW2, and SW3; multiple fuse mounting bases for mounting fuses FU1 and FU2; and a relay mounting base for mounting relay KA1.

[0057] The corresponding wiring ports of the components respectively arranged on the circuit breaker mounting seat, the fuse mounting seat and the relay mounting seat are connected to the plug-type pre-insulated terminals through multi-strand copper core wires;

[0058] Lead out the wires from one end of the probe wiring of the temperature probe group and fix them to the plug-in pre-insulated terminals in the corresponding temperature centralized monitoring box with screws;

[0059] The plug-in pre-insulated terminal is connected to the corresponding terminal of the analog input interface of the PLC of the main control cabinet through a communication line.

[0060] The box shell is an ABS shell and is fixed to the corresponding air compressor by bolts to improve the corrosion resistance of the temperature centralized monitoring control box.

[0061] Indicator light module, including: power indicator light connected to the control circuit, control power indicator light, emergency response indicator light and alarm indicator light;

[0062] The power indicator light, control power indicator light, and emergency response indicator light are arranged side by side on the back panel of the main control cabinet, and the input ends are connected to the live wire of the control circuit, and the output ends are connected to the neutral wire of the control circuit to form a loop;

[0063] The alarm indicator light is connected to the outside of the main control cabinet through a connecting rod and is connected to the PLC through the connecting wire inside the connecting rod;

[0064] Relay switches are provided on the circuits of the control power indicator light, the emergency response indicator light and the alarm indicator light, and the relays corresponding to the relay switches are connected to the PLC to realize the on-off setting of the indicator lights.

[0065] like Figure 1 As shown, the temperature probe group includes: a multi-stage entry temperature probe, a multi-stage separation temperature probe, an inlet water temperature probe and an outlet water temperature probe;

[0066] In Example 1, four-stage inlet temperature probes and four-stage separation temperature probes are used; the probes in the upper row are the first-stage inlet temperature probe, the first-stage separation temperature probe, the second-stage inlet temperature probe, the second-stage separation temperature probe, and the water inlet temperature probe; the probes in the lower row are the third-stage inlet temperature probe, the third-stage separation temperature probe, the fourth-stage inlet temperature probe, the fourth-stage separation temperature probe, and the water outlet temperature probe;

[0067] The multi-stage inlet temperature probe, multi-stage separation temperature probe, inlet water temperature probe and outlet water temperature probe are independently set;

[0068] One side of the probes of all probes is fixed to the temperature collection ports of each level of the air compressor by nuts, and the probe wiring on the other side is fixed to the plug-in pre-insulated terminals in the corresponding temperature centralized monitoring box by screws, so as to connect with the corresponding terminals of the PLC analog input interface, so as to transmit the corresponding temperature parameters of each level to the PLC to monitor the multi-stage inlet temperature, multi-stage separation temperature, water inlet temperature and water outlet temperature of the air compressor.

[0069] like Figure 1 As shown, in all embodiments of the present invention, the number of centralized temperature monitoring control boxes, air compressors, and temperature probe groups is the same, and the number can be set according to needs.

[0070] Example 1:

[0071] This embodiment Figure 1 As shown, the hardware part of the centralized temperature monitoring device for high-pressure air compressors includes: a main control cabinet, a No. 1 centralized temperature control box, a No. 2 centralized temperature control box, a No. 3 centralized temperature control box, temperature probes at all levels of the No. 1 high-pressure air compressor, probes at all levels of the No. 2 high-pressure air compressor, probes at all levels of the No. 3 high-pressure air compressor, and a power module.

[0072] Main control cabinet, including: touch screen, PLC, switching power supply A, switching power supply B, communication module, centralized temperature monitoring screen, power indicator light, control power indicator light, emergency response indicator light, alarm indicator light;

[0073] The temperature centralized control box is provided with a control circuit, which includes the following components: 2P circuit breaker SW1, 1P circuit breaker SW2, 1P circuit breaker SW3, fuse FU1, fuse FU2, relay KA1, and five-hole socket;

[0074] The structure of the temperature centralized control box includes: DIN rail, plug-in pre-insulated terminals, multi-strand copper core wires, communication cable A, and communication cable B;

[0075] The temperature centralized monitoring screen is connected to the communication module via communication cable A; the communication module is connected to the PLC via communication cable B;

[0076] The DIN rail is fixed to the bottom of the box housing. In the slots of the DIN rail, there are multiple circuit breaker mounting bases for mounting circuit breakers SW1, SW2, and SW3; multiple fuse mounting bases for mounting fuses FU1 and FU2; and a relay mounting base for mounting relay KA1.

[0077] The corresponding wiring ports of the components respectively arranged on the circuit breaker mounting seat, the fuse mounting seat and the relay mounting seat are connected to the plug-type pre-insulated terminals through multi-strand copper core wires;

[0078] Lead out the wires from one end of the probe wiring of the temperature probe group and fix them to the plug-in pre-insulated terminals in the corresponding temperature centralized monitoring box with screws;

[0079] The plug-in pre-insulated terminal is connected to the corresponding terminal of the analog input interface of the PLC of the main control cabinet through a communication line.

[0080] The main control cabinet is responsible for integrating the system's key components, receiving and aggregating temperature signals collected by temperature probes at various levels on high-pressure air compressors No. 1, No. 2, and No. 3, as well as performing system temperature signal processing and analysis and centralized system temperature monitoring. The No. 1, No. 2, and No. 3 centralized temperature control boxes, equipped with DIN rails, plug-in pre-insulated terminals, and multi-strand copper wire, aggregate temperature signals from the temperature probes at various levels on high-pressure air compressors No. 1, No. 2, and No. 3, and transmit these aggregated signals to the centralized system temperature monitoring control cabinet.

[0081] The centralized temperature control box is made of ABS material, ensuring strength while improving corrosion resistance. It is screwed onto the outdoor wall of the high-pressure air compressor. A DIN rail is bolted to the back panel of the centralized temperature control box. The 2P circuit breakers SW1, 1P circuit breakers SW2, and 1P circuit breakers SW3, fuses FU1 and FU2, the communication module, a five-hole socket, and pre-insulated plug-in terminals are attached to the DIN rail via their own slots.

[0082] The layout design in this embodiment is as follows Figure 1 As shown in the central control cabinet, the touch screen, PLC, switching power supply A, and switching power supply B are fixed to the back panel of the system temperature centralized monitoring control cabinet by bolts. The temperature centralized monitoring screen of the above-mentioned central control cabinet is fixed to the middle of the system temperature centralized monitoring control cabinet panel by bolts, and the power indicator light, control power indicator light, emergency response indicator light, and alarm indicator light are fixed to the upper side of the system temperature centralized monitoring control cabinet panel by bolts.

[0083] The No. 1, No. 2 and No. 3 temperature centralized control boxes are made of ABS material. While ensuring strength, they reduce the weight of the equipment and have excellent corrosion resistance. They are fixed to the wall of the air compressor by bolts.

[0084] The utility model realizes PLC control, the touch screen is used for parameter setting and modification, and the temperature centralized monitoring screen is used for real-time centralized display and monitoring of system temperature.

[0085] The working principle of this utility model is as follows:

[0086] After 2P circuit breaker SW1 is closed, the system is powered, and the power indicator on the system temperature centralized monitoring control cabinet illuminates. After 1P circuit breaker SW2 is closed, switching power supply A supplies power, converting AC230V to DC24V to power the centralized temperature display and communication module. After 1P circuit breaker SW3 is closed, switching power supply B supplies power, converting AC230V to DC24V to power the PLC and touch screen. When the PLC is operating, the control power indicator on the system temperature centralized monitoring control cabinet illuminates. When the emergency operation button is pressed, the emergency response indicator on the system temperature centralized monitoring control cabinet illuminates, and the KA1 relay energizes, opening the auxiliary contacts, and de-energizing the PLC, causing it to stop operating. If the high-pressure air compressor temperature monitoring is abnormal, the PLC analyzes and processes the abnormality, illuminating the alarm indicator on the system temperature centralized monitoring control cabinet to alert the operator to the abnormality.

[0087] The main control cabinet of the utility model realizes the integration of the main components of the overall system, receives the temperature signals collected by the temperature probes of each level of the No. 1, No. 2 and No. 3 high-pressure air compressors, summarizes the temperature signals, and processes and analyzes the system temperature signals, thereby realizing centralized monitoring of the system temperature.

[0088] Those skilled in the art will understand that the above description is only a preferred embodiment of the present invention, and the features described in the various embodiments and / or claims of the present disclosure may be combined or coupled in various ways, even if such a combination or coupling is not explicitly described in the present disclosure. It is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will still be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A centralized temperature monitoring device for a high-pressure air compressor, characterized in that: include: Control circuit and the power module, air compressor, temperature probe group, centralized temperature monitoring control box and main control cabinet connected in sequence; The main control cabinet includes: a PLC connected to the control loop, a touch screen, a control cabinet power supply, a communication module, a centralized temperature monitoring screen, and an indicator light module; The touch screen and the centralized temperature monitoring screen are both embedded on the back panel of the main control cabinet; The PLC is connected to the control circuit arranged in the temperature centralized control box through a communication transmission line, and the temperature centralized monitoring screen is connected to the communication module through a communication cable A; the communication module is connected to the PLC through a communication cable B; The touch screen is connected to the PLC via a communication transmission line to enable the touch screen to modify the internal parameters of the PLC and select the control instructions; The indicator light module is arranged on the back panel of the main control cabinet and is connected to the control circuit; The control cabinet power supply is respectively connected to the temperature centralized monitoring screen, communication module, PLC and touch screen to provide a 24V voltage for operation.

2. A centralized temperature monitoring device for a high-pressure air compressor according to claim 1, characterized in that: The control circuit includes: circuit breaker SW1, circuit breaker SW2, circuit breaker SW3, fuse FU1, fuse FU2, relay KA1 and five-hole socket arranged in the temperature centralized monitoring control box; The input end of the circuit breaker SW1 is connected to a 230V AC voltage, and the output end is connected to a five-hole socket through the fuse FU1 on the live wire and the fuse FU2 on the neutral wire respectively; Switching power supply A and switching power supply B are connected in parallel between the fuse and the five-hole socket, and form a first branch and a second branch respectively; The live wire input end of the switching power supply A is provided with a circuit breaker SW2, and the output end is connected to the temperature centralized monitoring screen and the communication module through the terminal box; The live wire input end of the switching power supply B is provided with a relay KA1 and a circuit breaker SW3 in sequence, and the output end is connected to the PLC and the touch screen respectively.

3. The centralized temperature monitoring device for a high-pressure air compressor according to claim 1, characterized in that: The centralized temperature monitoring control box comprises: a box shell and a DIN rail, a plug-in pre-insulated terminal and a multi-strand copper core wire arranged in the box shell; The DIN rail is fixed to the bottom of the box housing, and a plurality of circuit breaker mounting seats corresponding to the installation of circuit breakers SW1, SW2, and SW3 are clamped in the slots of the DIN rail; a plurality of fuse mounting seats corresponding to the installation of fuses FU1 and FU2; and a relay mounting seat corresponding to the installation of relay KA1; The wiring ports corresponding to the components respectively arranged on the circuit breaker mounting seat, the fuse mounting seat and the relay mounting seat are connected to the plug-type pre-insulated terminals through multi-strand copper core wires; Wires are led out from one end of the probe wiring of the temperature probe group and fixed to the plug-in pre-insulated terminals in the corresponding temperature centralized monitoring box by screws; The plug-in pre-insulated terminal is connected to the terminal corresponding to the analog input interface corresponding to the PLC of the main control cabinet through a communication line.

4. The centralized temperature monitoring device for a high-pressure air compressor according to claim 1, characterized in that: The indicator light module includes: a power indicator light connected to the control circuit, a control power indicator light, an emergency response indicator light, and an alarm indicator light; The power indicator light, control power indicator light, and emergency response indicator light are arranged side by side on the back panel of the main control cabinet, and the input ends are connected to the live wire of the control circuit, and the output ends are connected to the neutral wire of the control circuit to form a loop; The alarm indicator light is connected to the outside of the main control cabinet through a connecting rod and is connected to the PLC through a connecting wire inside the connecting rod; Relay switches are provided on the circuits of the control power indicator light, the emergency response indicator light and the alarm indicator light, and the relays corresponding to the relay switches are connected to the PLC to realize the on-off setting of the indicator lights.

5. The centralized temperature monitoring device for a high-pressure air compressor according to claim 1, characterized in that: The temperature probe group includes: a multi-stage entry temperature probe, a multi-stage separation temperature probe, an inlet water temperature probe, and an outlet water temperature probe; The multi-stage inlet temperature probe, the multi-stage separation temperature probe, the inlet water temperature probe and the outlet water temperature probe are independently arranged; One side of the probes of all probes is fixed to the temperature collection ports of each level of the air compressor by nuts, and the probe wiring on the other side is fixed to the plug-in pre-insulated terminals in the corresponding temperature centralized monitoring box by screws, so as to connect with the corresponding terminals of the PLC analog input interface, so as to transmit the corresponding temperature parameters of each level to the PLC to monitor the multi-stage inlet temperature, multi-stage separation temperature, water inlet temperature and water outlet temperature of the air compressor.

6. The centralized temperature monitoring device for a high-pressure air compressor according to claim 1, characterized in that: The centralized temperature monitoring control box, the air compressor, and the temperature probe group are all provided in plurality, and the number thereof is the same.

7. The centralized temperature monitoring device for a high-pressure air compressor according to claim 3, characterized in that: The box shell is an ABS shell and is fixed to the corresponding air compressor by bolts to improve the corrosion resistance of the temperature centralized monitoring control box.

8. The centralized temperature monitoring device for a high-pressure air compressor according to claim 1, characterized in that: The control cabinet power supply includes: switching power supply A and switching power supply B; The switching power supply A is connected to the temperature centralized monitoring screen and the communication module through the control circuit to convert the AC230V voltage into DC24V to power the temperature centralized monitoring screen and the communication module; The switching power supply B is connected to the PLC and the touch screen respectively through the control loop to convert the AC230V voltage into DC24V to power the PLC and the touch screen.

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