Safety monitoring equipment for dissolved hydrogen in cooling water of generator

Abstract

The utility model relates to safety monitoring equipment for dissolved hydrogen in cooling water of a generator, which comprises a cabinet, two thermal conductivity detectors and two headspace degassing devices. The two thermal conductivity detectors are arranged in the accommodating cavity; the two headspace degassing devices are arranged on the cabinet, a liquid inlet of one headspace degassing device is connected to a stator cooling water inlet of the generator through a first sampling pipe, and a liquid inlet of the other headspace degassing device is connected to a stator cooling water outlet of the generator through a second sampling pipe; a liquid outlet of each headspace degassing device is connected to a stator cooling water tank of the generator through a conveying pipe, the headspace degassing devices are in one-to-one correspondence with the thermal conductivity detectors, and exhaust ports of the headspace degassing devices extend into the containing cavity through first connecting pipes to be connected to air inlets of the thermal conductivity detectors. The hydrogen content of the cooling water at the stator cooling water inlet and the stator cooling water outlet of the generator is monitored in real time. Normal operation of the generator is ensured, and power generation efficiency is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen leakage monitoring of generators, and particularly relates to a safety monitoring device for dissolved hydrogen in generator cooling water. Background Art

[0002] During the operation of a generator, certain heat will be generated, and a cooling system is required to reduce the temperature to ensure the normal operation of the generator. If the concentration of hydrogen dissolved in the cooling water is too high, it may cause internal corrosion, bubbles and throttling phenomena in the generator, seriously affecting the normal operation of the equipment.

[0003] Currently, in order to obtain the hydrogen content in the cooling water, the demineralized water is often sampled manually at regular intervals, and then a hydrogen detection instrument is used to measure the hydrogen content in the cooling water to determine whether there is hydrogen leakage in the generator.

[0004] However, the above method cannot detect the hydrogen leakage in the generator in time, which is likely to cause corrosion or damage to the components of the generator, resulting in the abnormal operation of the generator and thus affecting the power generation efficiency. Summary of the Utility Model

[0005] Based on the above description, the utility model provides a safety monitoring device for dissolved hydrogen in generator cooling water, aiming to solve the problem that the existing manual regular measurement of hydrogen content cannot detect the hydrogen leakage in the generator in time.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] A safety monitoring device for dissolved hydrogen in generator cooling water includes:

[0008] A cabinet with an accommodation cavity;

[0009] Two thermal conductivity detectors, both arranged in the accommodation cavity;

[0010] Two headspace degassing devices, both arranged on the cabinet. The liquid inlet of one headspace degassing device is connected to the demineralized water inlet of the generator through a first sampling pipe, and the liquid inlet of the other headspace degassing device is connected to the demineralized water outlet of the generator through a second sampling pipe. The liquid discharge port of each headspace degassing device is connected to the demineralized water tank of the generator through a conveying pipe. The headspace degassing devices and the thermal conductivity detectors are in one-to-one correspondence, and the exhaust port of the headspace degassing device extends into the accommodation cavity through a first connecting pipe and is connected to the air inlet of the thermal conductivity detector.

[0011] On the basis of the above technical solution, the utility model can also be improved as follows.

[0012] Further, an exhaust pipe is provided on the cabinet, and the exhaust port of the thermal conductivity detector is connected to the exhaust pipe through a second connecting pipe.

[0013] Further, a cabinet door is rotatably connected to the cabinet, and the cabinet door is used to open or close the accommodation cavity.

[0014] Further, the cabinet has a first end face, and a plurality of lifting rings are arranged in an array on the first end face.

[0015] Further, the cabinet has a second end face, the second end face is arranged opposite to the first end face, and a plurality of support members are arranged in an array on the second end face.

[0016] Further, it includes two pressure gauges, both of the two pressure gauges are arranged on the cabinet, the pressure gauges correspond to the headspace degassing device one by one, and the pressure gauges are connected to the first connecting pipe through a third connecting pipe.

[0017] Further, it includes a main control module and a speaker, both the main control module and the speaker are arranged in the accommodation cavity, and the thermal conductivity detector, the headspace degassing device, the pressure gauge and the speaker are all electrically connected to the main control module.

[0018] Further, it includes a display, the display is arranged on the cabinet, and the display is electrically connected to the main control module.

[0019] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects:

[0020] (1) In the present application, the headspace degassing device samples the cooling water at the inlet and outlet of the stator cooling water of the generator and performs gas-liquid separation, and then two thermal conductivity detectors respectively measure the hydrogen content of the cooling water at the inlet and outlet of the stator cooling water, so as to realize the real-time monitoring of the hydrogen content of the cooling water at the inlet and outlet of the stator cooling water of the generator. Thereby preventing the generator from malfunctioning, ensuring that the generator can operate normally, and guaranteeing the power generation efficiency.

[0021] (2) The pressure gauge in the present application measures the pressure of the hydrogen output by the headspace degassing device, preventing the possibility of the first connecting pipe bursting due to overpressure.

[0022] (3) Whether the hydrogen content of the cooling water at the inlet or outlet of the stator cooling water is too high, or the pressure of the first connecting pipe is overpressured, the main control module will control the speaker to give a prompt to ensure that the staff can handle it in time. Description of the Drawings

[0023] Figure 1It is a schematic structural diagram of a hydrogen dissolved in generator cooling water safety monitoring device provided in an embodiment of the present utility model from one perspective;

[0024] Figure 2 It is a schematic structural diagram of a hydrogen dissolved in generator cooling water safety monitoring device provided in an embodiment of the present utility model from another perspective;

[0025] Figure 3 It is a circuit connection diagram of a hydrogen dissolved in generator cooling water safety monitoring device provided in an embodiment of the present utility model.

[0026] In the attached drawings, the component list represented by each reference numeral is as follows:

[0027] 10, cabinet; 11, exhaust pipe; 12, cabinet door; 13, lifting ring; 14, support member;

[0028] 20, thermal conductivity detector;

[0029] 30, headspace degassing device;

[0030] 40, pressure gauge;

[0031] 50, main control module;

[0032] 60, speaker;

[0033] 70, display. Detailed implementation manners

[0034] For the convenience of understanding the present application, the present application will be described more comprehensively below with reference to the relevant attached drawings. Embodiments of the present application are given in the attached drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs. The terms used in the description of the present application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0036] It will be appreciated that spatial relationship terms such as "under", "below", "beneath", "underneath", "above", "over" etc. may be used herein to describe the relationship of one element or feature shown in the figures to other elements or features. It should be understood that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the figures is flipped, an element or feature described as "under other elements" or "beneath them" or "underneath them" will be oriented "above" the other elements or features. Thus, the exemplary terms "under" and "beneath" can include both the upper and lower orientations. In addition, the device may also include additional orientations (such as rotating 90 degrees or other orientations), and the spatial descriptors used herein are to be interpreted accordingly.

[0037] As used herein, the singular forms "a", "an" and "the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprises / include" or "has" etc. specify the presence of the stated features, integers, steps, operations, components, parts or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts or combinations thereof.

[0038] Referring to the attached Figures 1 to 3 As shown, the present utility model provides a technical solution: a safety monitoring device for dissolved hydrogen in the cooling water of a generator, comprising a cabinet 10, two thermal conductivity detectors 20 and two headspace degassing devices 30. The cabinet 10 has a receiving cavity; the two thermal conductivity detectors 20 are both arranged in the receiving cavity; the two headspace degassing devices 30 are both arranged on the cabinet 10. The liquid inlet of one headspace degassing device 30 is connected to the stator cooling water inlet of the generator through a first sampling pipe, and the liquid inlet of the other headspace degassing device 30 is connected to the stator cooling water outlet of the generator through a second sampling pipe. The liquid discharge port of each headspace degassing device 30 is connected to the stator cooling water tank of the generator through a conveying pipe. The headspace degassing devices 30 and the thermal conductivity detectors 20 are in one-to-one correspondence, and the exhaust port of the headspace degassing device 30 extends into the receiving cavity through a first connecting pipe and is connected to the air inlet of the thermal conductivity detector 20.

[0039] According to this embodiment, after the two headspace degassing devices 30 respectively obtain the cooling water at the stator cooling water inlet and the stator cooling water outlet of the generator, the cooling water is subjected to gas-liquid separation treatment, and then the hydrogen is transported to the thermal conductivity detector 20. The two thermal conductivity detectors 20 respectively measure the hydrogen content of the cooling water at the stator cooling water inlet and the stator cooling water outlet. Thereby, the hydrogen content at the stator cooling water inlet and the stator cooling water outlet can be monitored, preventing the hydrogen content of the cooling water at the stator cooling water inlet or the stator cooling water outlet from being too high, and ensuring the safe operation of the generator.

[0040] Refer to the appendix Figure 1 As shown, in some embodiments, an exhaust pipe 11 is provided on the cabinet 10, and the exhaust port of the thermal conductivity detector 20 is connected to the exhaust pipe 11 through a second connecting pipe.

[0041] According to this embodiment, after the thermal conductivity detector 20 measures the hydrogen content, the hydrogen content is discharged through the exhaust pipe 11 to prepare for the next measurement.

[0042] Refer to the appendix Figure 1 As shown, in some embodiments, a cabinet door 12 is rotatably connected to the cabinet 10, and the cabinet door 12 is used to open or close the accommodation cavity.

[0043] According to this embodiment, in this way, a wide maintenance passage can be reserved, which is convenient for the staff to repair the components in the accommodation cavity.

[0044] Refer to the appendix Figures 1 to 2 As shown, in some embodiments, the cabinet 10 has a first end face, and a plurality of lifting rings 13 are arranged in an array on the first end face.

[0045] According to this embodiment, when the cabinet 10 is installed, the lifting rings 13 can facilitate the lifting equipment to lift the cabinet 10, thereby reducing the labor intensity of the staff.

[0046] Refer to the appendix Figures 1 to 2 As shown, in some embodiments, the cabinet 10 has a second end face, the second end face is disposed opposite to the first end face, and a plurality of support members 14 are arranged in an array on the second end face.

[0047] Exemplarily, the support member 14 can be a support base, a damping base, a foot-brake type universal wheel or a Fukuma wheel, etc.

[0048] Refer to the appendix Figure 2 As shown, in some embodiments, it includes two pressure gauges 40, both of the two pressure gauges 40 are arranged on the cabinet 10, the pressure gauges 40 correspond to the headspace degassing device 30 one by one, and the pressure gauges 40 are connected to the first connecting pipe through a third connecting pipe.

[0049] According to this embodiment, the pressure gauges 40 measure the pressure of the hydrogen output by the headspace degassing device 30 to prevent the possibility of the first connecting pipe bursting due to overpressure.

[0050] Refer to the appendix Figure 3 As shown, in some embodiments, it includes a main control module 50 and a speaker 60. Both the main control module 50 and the speaker 60 are arranged in the accommodation cavity, and the thermal conductivity detector 20, the headspace degassing device 30, the pressure gauges 40 and the speaker 60 are all electrically connected to the main control module 50.

[0051] Exemplarily, the main control module 50 can be a single-chip microcomputer of the stm32 series, etc.

[0052] In this embodiment, based on the thermal conductivity detector 20, the hydrogen content of the cooling water at the inlet or outlet of the stator cooling water is measured, and the pressure gauge 40 measures the pressure of the first connecting pipe. Whether the hydrogen content of the cooling water at the inlet or outlet of the stator cooling water is too high or the pressure of the first connecting pipe is overpressure, the main control module 50 will control the speaker 60 to give a prompt to ensure that the staff can handle it in time.

[0053] Refer to the attached Figure 1 and 3 As shown, in some embodiments, it includes a display 70. The display 70 is provided on the cabinet 10 and is electrically connected to the main control module 50.

[0054] In this embodiment, the display 70 is used to display the hydrogen content of the cooling water at the inlet and outlet of the stator cooling water and the pressure measured by the pressure gauge 40 for the first connecting pipe, etc., facilitating the staff to understand the operating state of the connected equipment.

[0055] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safety monitoring device for dissolved hydrogen in the cooling water of a generator, characterized in that, Comprising: A cabinet (10) having a receiving cavity; Two thermal conductivity detectors (20), both disposed in the receiving cavity; Two headspace degassing devices (30), both disposed on the cabinet (10). The liquid inlet of one headspace degassing device (30) is connected to the stator cooling water inlet of the generator through a first sampling pipe, and the liquid inlet of the other headspace degassing device (30) is connected to the stator cooling water outlet of the generator through a second sampling pipe. The liquid discharge port of each headspace degassing device (30) is connected to the stator cooling water tank of the generator through a delivery pipe. The headspace degassing devices (30) and the thermal conductivity detectors (20) are in one-to-one correspondence. The exhaust port of the headspace degassing device (30) extends into the receiving cavity through a first connecting pipe and is connected to the air inlet of the thermal conductivity detector (20).

2. The safety monitoring device for dissolved hydrogen in the cooling water of a generator according to claim 1, wherein, An exhaust pipe (11) is provided on the cabinet (10), and the exhaust port of the thermal conductivity detector (20) is connected to the exhaust pipe (11) through a second connecting pipe.

3. The safety monitoring device for dissolved hydrogen in the cooling water of a generator according to claim 1, characterized in that, A cabinet door (12) is rotatably connected to the cabinet (10), and the cabinet door (12) is used to open or close the receiving cavity.

4. The safety monitoring device for dissolved hydrogen in the cooling water of a generator according to claim 1, wherein, The cabinet (10) has a first end face, and a plurality of lifting rings (13) are arranged in an array on the first end face.

5. A safety monitoring device for dissolved hydrogen in the cooling water of a generator according to claim 4, characterized in that, The cabinet (10) has a second end face, which is opposite to the first end face, and a plurality of support members (14) are arranged in an array on the second end face.

6. A safety monitoring device for dissolved hydrogen in the cooling water of a generator according to any one of claims 1 to 5, characterized in that, Comprising two pressure gauges (40), both of the two pressure gauges (40) are disposed on the cabinet (10). The pressure gauges (40) and the headspace degassing devices (30) are in one-to-one correspondence, and the pressure gauges (40) are connected to the first connecting pipe through a third connecting pipe.

7. The safety monitoring device for dissolved hydrogen in the cooling water of a generator according to claim 6, characterized in that, Comprising a main control module (50) and a speaker (60), both the main control module (50) and the speaker (60) are disposed in the receiving cavity. The thermal conductivity detector (20), the headspace degassing device (30), the pressure gauge (40) and the speaker (60) are all electrically connected to the main control module (50).

8. A safety monitoring device for dissolved hydrogen in the cooling water of a generator according to claim 7, characterized in that, Comprising a display (70), the display (70) is disposed on the cabinet (10), and the display (70) is electrically connected to the main control module (50).

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