Vacuum drying detection equipment for cooling tower radiator

Abstract

The utility model discloses vacuum drying detection equipment for a cooling tower radiator, which comprises an upper cabinet body and a lower cabinet body, a touch display screen and a digital display vacuum meter are arranged on the front side of the upper cabinet body, and a control key is arranged at the lower part of the digital display vacuum meter; a condensation drying device is arranged in the lower cabinet body, and a vacuum device is arranged on one side of the condensation drying device; the other side of the condensation drying device is provided with two groups of gas conveying pipes which are respectively communicated with an upper flow channel interface and a lower flow channel interface of the tested cooling tower radiator; electromagnetic air pressure valves are respectively arranged on the two groups of air delivery pipes; and a PLC control system is also arranged in the upper cabinet body. The equipment can automatically judge the vacuum degree and the drying condition in the flow channel of the cooling tower radiator to be detected, has the characteristics of convenience in use, simplicity in operation and reliable performance, is highly intelligent and integrated railway locomotive electrical product detection equipment, can set test standards for different parameters according to products of different models, and is high in detection efficiency. And the reliability and the safety of railway locomotive equipment parts are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling tower radiator detection, in particular to a cooling tower radiator vacuum drying detection device. Background Art

[0002] The cooling tower radiator is an important component for cooling the traction voltage regulator and traction converter in railway locomotives. The cooling tower radiator is generally divided into two layers, the upper and lower layers. The two cooling circuits are separated from each other, and the air channel runs through the upper and lower layers. Forced air cooling is performed by cooling air. The cooling tower radiator is usually divided into two types: tube-fin type and plate-fin type. After the cooling tower radiator is cleaned and dried, the flow channel needs to be tested for vacuum and water vapor residue to ensure the surface treatment quality of the cooling tower radiator. Leakage points or water vapor residue in the flow channel of the cooling tower radiator will cause leakage points or corrosion leakage in the flow channel of the cooling tower radiator when the railway locomotive is in operation, affecting the heat dissipation performance of the cooling tower radiator and posing a major hidden danger to the safety of railway locomotive operation.

[0003] In the related art, the vacuum degree of the cooling tower radiator flow channel is tested by protecting the cooling tower radiator flow channel flange and filling the entire channel with bubble water. The accuracy of the test cannot be guaranteed, the operation is complicated, and there is no integrated related automated testing device. It is impossible to automatically determine whether the product is qualified, and human testing is required. The product testing efficiency is low, and the reliability and safety of railway locomotive equipment components cannot be guaranteed. Utility Model Content

[0004] The purpose of the utility model is to provide a cooling tower radiator vacuum drying detection device to solve at least one aspect of the problems and defects raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A cooling tower radiator vacuum drying detection device comprises an upper cabinet and a lower cabinet.

[0007] A touch screen and a digital vacuum gauge are provided on the front side of the upper cabinet, and control keys are provided at the bottom of the digital vacuum gauge;

[0008] A condensation drying device is provided in the lower cabinet, and a vacuum device is provided on one side of the condensation drying device;

[0009] Two groups of air delivery pipes are arranged on the other side of the condensation drying device, and the two groups of air delivery pipes are respectively connected to the upper and lower flow channel interfaces of the cooling tower radiator under test;

[0010] The two groups of gas delivery pipes are respectively provided with electromagnetic air pressure valves;

[0011] A PLC control system is also provided in the upper cabinet.

[0012] The cooling tower radiator vacuum drying detection equipment according to this scheme has at least the following technical effects:

[0013] The cooling tower radiator vacuum drying detection equipment is used to detect the vacuum degree and water vapor residue in the flow channel of the cooling tower radiator after cleaning and drying. By integrating the condensation drying device, vacuum device and operating system into the PLC control system, the vacuum degree and drying condition in the flow channel can be automatically judged; in the vacuum drying detection process of the cooling tower radiator, the vacuum time, vacuum pressure standard, first-stage pressure holding time, first-stage pressure stabilization pressure standard, second-stage pressure holding time, and second-stage pressure stabilization pressure standard parameters can be set. After connecting the upper and lower flow channels of the cooling tower radiator to be tested through the gas pipeline, the vacuum degree and drying condition inside the flow channel of the cooling tower radiator to be tested can be quickly and automatically judged according to the set standard parameters. It is easy to use, simple to operate, and reliable in performance, saving manpower detection time, and improving product detection efficiency and accuracy. It is a highly intelligent and integrated railway locomotive electrical product detection equipment, which can set test standards with different parameters according to different product structures. It has a wide range of applications and improves the reliability and safety of railway locomotive equipment components.

[0014] As a further solution of the utility model: the touch display screen is connected to the PLC control system via an Ethernet communication port.

[0015] Since the touch screen is connected to the PLC control system through the Ethernet communication port, high-speed and stable data transmission can be achieved, so that the touch screen can obtain various data in the PLC control system in a timely manner and realize real-time monitoring and control.

[0016] As a further solution of the utility model: the PLC control system automatically controls the electromagnetic air pressure valve to be opened or closed.

[0017] The PLC control system can automatically adjust the opening or closing of the electromagnetic air pressure valve according to the preset parameters and conditions, so that during vacuuming, the vacuuming time, vacuuming pressure standard, first-stage pressure holding time, first-stage pressure stabilization pressure standard, second-stage pressure holding time, and second-stage pressure stabilization pressure can be accurately controlled. No human control is required, which improves the degree of automation of the equipment, and improves the accuracy and work efficiency of the operation.

[0018] As a further solution of the utility model: there are two digital vacuum meters, which respectively display the values ​​of the two groups of gas pipes.

[0019] Since there are two digital vacuum gauges, which respectively display the values ​​of two groups of gas pipes, the vacuum conditions of the upper and lower flow channels of the cooling tower radiator can be monitored simultaneously. The vacuum conditions of each group of gas pipes can be reflected in time on the corresponding digital vacuum gauge to avoid operators reading or recording erroneous data, and adjust the electromagnetic air pressure valve according to the data to ensure the accuracy and reliability of the detection process.

[0020] As a further solution of the utility model: the vacuum device includes a vacuum pump.

[0021] As a further solution of the utility model: the device also includes an alarm system.

[0022] Since the equipment also includes an alarm system, during the process of the vacuum device evacuating the cooling tower radiator flow channel, when the vacuum pressure is evacuated to below the set value standard at normal pressure within the set vacuum pumping time, the PLC control system controls the electromagnetic air pressure valve to open or close. When the set vacuum pumping time is exceeded and the vacuum pressure does not reach the set value standard, the alarm system sounds an alarm and determines that the product is unqualified; and in the secondary vacuum pumping process, if the pressure value exceeds the set value, the alarm system also sounds an alarm and determines that the product is unqualified, further improving the efficiency and accuracy of product detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of a cooling tower radiator vacuum drying detection equipment;

[0025] Figure 2 for Figure 1 Schematic diagram of the structure viewed from above after the top is removed.

[0026] Reference numerals:

[0027] 101. Upper cabinet; 102. Lower cabinet; 103. Touch screen; 104. Digital vacuum gauge; 105. Control keys; 106. Condensation drying device; 107. Vacuum device; 108. Gas pipe; 109. Solenoid air pressure valve; 110. PLC control system. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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.

[0030] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model 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 utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0034] like Figure 1 and Figure 2The embodiment of the utility model shown is a cooling tower radiator vacuum drying detection equipment, comprising an upper cabinet 101 and a lower cabinet 102, wherein a touch display screen 103 and a digital vacuum gauge 104 are arranged on the front side of the upper cabinet 101, and a control key 105 is arranged at the lower part of the digital vacuum gauge 104; a condensation drying device 106 is arranged in the lower cabinet 102, and a vacuum device 107 is connected to one side of the condensation drying device 106, and the vacuum device 107 includes a vacuum pump; two groups of air pipes 108 are arranged on the other side of the condensation drying device 106, and the two groups of air pipes 108 are respectively connected to the upper and lower flow channel interfaces of the cooling tower radiator to be tested; electromagnetic air pressure valves 109 are respectively arranged on the two groups of air pipes 108; a PLC control system 110 is also arranged in the upper cabinet 101.

[0035] When in use, the device is powered on, and the manual / automatic mode is switched through the control key 105. In the automatic mode, the product model, vacuuming time, vacuuming pressure standard, first-stage holding time, first-stage stabilizing pressure standard, second-stage holding time, and second-stage stabilizing pressure standard parameters are set through the touch screen 103;

[0036] The two groups of gas pipes 108 are connected to the upper and lower flow channel interfaces of the cooling tower radiator respectively, the vacuum device 107 is started to evacuate the cooling tower radiator flow channel, and the condensation drying device 106 is started at the same time to prevent residual water vapor from being drawn into the equipment during the vacuuming period. After the cooling tower radiator flow channel reaches the vacuuming pressure standard within the vacuuming time, the electromagnetic air pressure valve 109 is automatically closed through the PLC control system 110 to isolate the pressure in the cooling tower radiator flow channel;

[0037] At the same time, the digital vacuum gauge 104 is observed. When the vacuum device 107 is evacuated to a pressure below the set vacuum pressure standard within the set vacuum time, the electromagnetic air pressure valve 109 is closed, the vacuum device 107 is closed, and the pressure is stabilized for the first stage holding time. The digital vacuum gauge 104 transmits the pressure curve to the touch screen 103. During this period, when the absolute pressure exceeds the first stage stabilization pressure standard, the electromagnetic air pressure valve 109 is opened, the vacuum device 107 is started, and after the second vacuum is evacuated to a pressure below the vacuum pressure standard, the electromagnetic air pressure valve 109 is closed, the vacuum device 107 is closed, and the pressure is stabilized for the first stage holding time. During this period, when the absolute pressure exceeds the first stage stabilization pressure standard, an unqualified judgment is output. When it does not exceed the first stage stabilization pressure standard, the pressure is stabilized for the second stage holding time. During this period, when the absolute pressure exceeds the second stage stabilization pressure standard, an unqualified judgment is output. When it does not exceed the second stage stabilization pressure standard, a qualified judgment is output.

[0038] Specifically, the cooling tower radiator vacuum drying detection equipment is used to detect the vacuum degree and water vapor residue in the flow channel of the cooling tower radiator after cleaning and drying. By integrating the condensation drying device 106, the vacuum device 107 and the operating system into the PLC control system 110, the vacuum degree and the drying condition in the flow channel are automatically judged; in the vacuum drying detection process of the cooling tower radiator, the vacuum time, vacuum pressure standard, first-stage pressure holding time, first-stage pressure stabilization pressure standard, second-stage pressure holding time, and second-stage pressure stabilization pressure standard parameters can be set. After the upper and lower flow channels of the tested cooling tower radiator are connected through the air pipe 108, the vacuum degree and the drying condition inside the flow channel of the tested cooling tower radiator can be automatically judged according to the set standard parameters. It is easy to use, simple to operate, and reliable in performance, saving manpower detection time, and improving product detection efficiency and accuracy. It is a highly intelligent and integrated railway locomotive electrical product detection equipment, which can set test standards with different parameters according to different product structures. It has a wide range of applications and improves the reliability and safety of railway locomotive equipment components.

[0039] Furthermore, the touch display screen 103 is connected to the PLC control system 110 via an Ethernet communication port.

[0040] Specifically, since the touch screen 103 is connected to the PLC control system 110 via the Ethernet communication port, high-speed and stable data transmission can be achieved, so that the touch screen 103 can obtain various data in the PLC control system 110 in a timely manner to achieve real-time monitoring and control.

[0041] Furthermore, the PLC control system 110 automatically controls the electromagnetic air pressure valve 109 to open or close.

[0042] Specifically, the PLC control system 110 can automatically adjust the opening or closing of the electromagnetic air pressure valve 109 according to preset parameters and conditions, so that during vacuum extraction, the vacuum extraction time, vacuum extraction pressure standard, first-stage pressure holding time, first-stage pressure stabilization pressure standard, second-stage pressure holding time, and second-stage pressure stabilization pressure can be accurately controlled without the need for human control, thereby improving the degree of automation of the equipment, and improving the accuracy of operation and work efficiency.

[0043] like Figure 1 As shown, there are two digital vacuum gauges 104, which respectively display the values ​​of the two gas pipes 108.

[0044] Specifically, since there are two digital vacuum gauges 104, which respectively display the values ​​of the two groups of gas pipes 108, the vacuum conditions of the upper and lower flow channels of the cooling tower radiator can be monitored simultaneously. The vacuum conditions of each group of gas pipes 108 can be timely reflected on the corresponding digital vacuum gauge 104, avoiding the operator from reading or recording erroneous data, and adjusting the electromagnetic air pressure valve 109 according to the data to ensure the accuracy and reliability of the detection process.

[0045] Furthermore, the device also includes an alarm system.

[0046] Specifically, since the equipment also includes an alarm system, during the process of the vacuum device 107 evacuating the cooling tower radiator flow channel, when the vacuum pressure is evacuated to below the set value standard at normal pressure within the set vacuum time, the PLC control system 110 controls the electromagnetic air pressure valve 109 to open or close, and when the set vacuum time is exceeded and the vacuum pressure does not reach the set value standard, the alarm system sounds an alarm and determines that the product is unqualified; and in the secondary vacuum process, if the pressure value exceeds the set value, the alarm system also sounds an alarm and determines that the product is unqualified, thereby further improving the efficiency and accuracy of product detection.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A cooling tower radiator vacuum drying detection device, comprising an upper cabinet (101) and a lower cabinet (102), characterized in that: A touch screen (103) and a digital vacuum gauge (104) are provided on the front side of the upper cabinet (101), and a control key (105) is provided at the bottom of the digital vacuum gauge (104); A condensation and drying device (106) is provided in the lower cabinet (102), and one side of the condensation and drying device (106) is connected to a vacuum device (107); Two groups of air delivery pipes (108) are arranged on the other side of the condensation and drying device (106), and the two groups of air delivery pipes (108) are respectively connected to the upper and lower flow channel interfaces of the cooling tower radiator under test; The two groups of gas delivery pipes (108) are respectively provided with electromagnetic air pressure valves (109); A PLC control system (110) is also provided in the upper cabinet (101).

2. The cooling tower radiator vacuum drying detection equipment according to claim 1, characterized in that: The touch display screen (103) is connected to the PLC control system (110) via an Ethernet communication port.

3. The cooling tower radiator vacuum drying detection equipment according to claim 1, characterized in that: The PLC control system (110) automatically controls the electromagnetic air pressure valve (109) to open or close.

4. The cooling tower radiator vacuum drying detection equipment according to claim 1, characterized in that: There are two digital vacuum gauges (104), which respectively display the values ​​of the two gas delivery pipes (108).

5. The cooling tower radiator vacuum drying detection equipment according to claim 1, characterized in that: The vacuum device (107) comprises a vacuum pump.

6. The cooling tower radiator vacuum drying detection equipment according to any one of claims 1 to 5, characterized in that: The equipment also includes an alarm system.

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