Gas relay with hydrogen detection function and transformer

Abstract

The utility model provides a gas relay with a hydrogen detection function and a transformer. The amount of hydrogen in the body can be detected in real time through the hydrogen detector, and other gases in the body cannot be influenced, so that the hydrogen in the light gas can be effectively prevented from being consumed in order to detect the content of hydrogen in the light gas, the total content of the light gas is effectively prevented from being reduced, and the light gas alarm precision is ensured; and according to the measurement value and the measurement medium (oil phase or gas phase), the operation state of the transformer can be better evaluated.

Description

Technical Field

[0001] The utility model relates to the field of transformers, in particular to a gas relay and a transformer with a hydrogen detection function. Background Art

[0002] A gas relay is a protective device used in transformers. It is installed in the pipe between the oil storage cabinet and the oil tank of the transformer. When an internal fault of the transformer causes the oil to decompose and produce gas or causes oil flow surge, the contacts of the gas relay will be activated, the specified control circuit will be connected, and a signal alarm will be issued in time (light gas) or the protection element will be activated to automatically cut off the transformer (heavy gas).

[0003] However, the existing gas relays are unable to monitor the hydrogen content in light gas in real time, and are unable to give measurement values ​​and judgments on the measuring medium (oil phase or gas phase), and are thus unable to better evaluate the operating status of the transformer. Therefore, there is an urgent need for a gas relay that can monitor the hydrogen content in light gas in real time. Utility Model Content

[0004] In view of this, an embodiment of the utility model provides a gas relay and a transformer with a hydrogen detection function to solve the problem that the existing gas relay cannot monitor the hydrogen content in the light gas in real time, and thus cannot better evaluate the operating status of the transformer.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] The first aspect of the utility model discloses a gas relay with a hydrogen detection function, comprising:

[0007] ontology;

[0008] The hydrogen detector is arranged in the body and located at the top of the body. The hydrogen detector is used to detect the concentration of hydrogen in the body. The probe of the hydrogen detector is provided with an alloy material for catalyzing hydrogen, and the alloy material is used to adsorb hydrogen atoms catalyzed by hydrogen.

[0009] Preferably, the alloy material is a Pd-Ni alloy film.

[0010] Preferably, an oil guide groove is provided on the top of the probe.

[0011] Preferably, there are multiple oil guide grooves.

[0012] Preferably, the probe comprises: a first connecting tube and a second connecting tube;

[0013] The first end of the first connecting pipe is connected to the second connecting pipe at a preset angle;

[0014] The alloy material is arranged at the second end of the first connecting pipe.

[0015] Preferably, the preset angle is 90°.

[0016] Preferably, it also includes: a liquid level sensor, a signal processor and a power supply;

[0017] The liquid level sensor is arranged in the body and is used to detect the oil height in the body;

[0018] The signal processor is connected to the hydrogen detector and the liquid level sensor for processing the concentration of the hydrogen detector and the data transmitted by the liquid level sensor, and outputting data in the oil phase or gas phase in different states according to the state of the hydrogen detector;

[0019] The power supply is electrically connected to the hydrogen detector, the liquid level sensor and the signal processor.

[0020] Preferably, the power supply is a 24V DC power supply.

[0021] Preferably, it also includes: a communication module;

[0022] The communication module is connected to the signal processor for communication and is used for communication with the terminal device.

[0023] The second aspect of the utility model discloses a transformer, comprising the gas relay disclosed in the first aspect of the utility model.

[0024] Based on the above utility model, a gas relay and transformer with hydrogen detection function are provided, by setting a hydrogen detector for detecting the amount of hydrogen in the body, and setting the hydrogen detector in the body and at the top of the body, and setting the liquid level sensor for detecting the oil height in the body in the body, the signal processor is connected to the hydrogen detector and the liquid level sensor in communication, and the power supply is electrically connected to the hydrogen detector, the liquid level sensor and the signal processor. Through the above disclosed gas relay, the amount of hydrogen in the body can be detected in real time by the hydrogen detector, and the oil height in the body can be detected in real time by the liquid level sensor, and finally the hydrogen concentration is calculated by processing the data transmitted by the hydrogen detector and the liquid level sensor by the signal processor, and the application will not affect other gases in the body, therefore, it can effectively avoid consuming the hydrogen in the light gas in order to detect the content of hydrogen in the light gas, effectively avoid the reduction of the overall content of the light gas, ensure the accuracy of the light gas alarm, and judge according to the measured value and the measured medium (oil phase or gas phase) to better evaluate the operating state of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the structure of a gas relay with hydrogen detection function provided by an embodiment of the utility model;

[0027] Figure 2 For the utility model embodiment Figure 1 A partial enlarged view of the middle A;

[0028] Figure 3 A working principle diagram of a gas relay with hydrogen detection function provided in an embodiment of the utility model.

[0029] Among them, there are a main body 1, a hydrogen detector 2, a probe 21, an alloy material 22, an oil guide groove 23, a liquid level sensor 3, a signal processor 4, a power supply 5, and a communication module 6. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] The utility model provides a gas relay with hydrogen detection function. Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of a gas relay with hydrogen detection function. The gas relay includes:

[0032] Ontology 1;

[0033] The hydrogen detector 2 is arranged in the main body 1 and located at the top of the main body 1. The hydrogen detector 2 is used to detect the concentration of hydrogen in the main body 1. The probe 21 of the hydrogen detector 2 is provided with an alloy material 22 for catalyzing hydrogen. The alloy material 22 is used to adsorb hydrogen atoms for hydrogen catalysis.

[0034] It should be noted that when some minor faults occur inside the transformer, a small amount of gas originally dissolved in the oil will precipitate and a small amount of insulating oil will decompose to produce gas. The small amount of gas originally dissolved in the oil that is precipitated and the gas produced by the decomposition of a small amount of insulating oil contain hydrogen. Since the density of these hydrogen gases is very small, they gradually float up and accumulate in the gas collecting chamber at the top of the gas relay. Therefore, it is necessary to set the hydrogen detector 2 in the main body 1 and be located at the top of the main body 1. Then, when some minor faults occur inside the transformer, the hydrogen detector 2 can detect the precipitation of a small amount of hydrogen originally dissolved in the oil and the decomposition of a small amount of insulating oil to produce hydrogen.

[0035] It should also be noted that by arranging an alloy material 22 for catalyzing hydrogen on the top of the probe 21, hydrogen can be catalyzed into hydrogen atoms, and the hydrogen atoms can be adsorbed on the alloy material 22 to change the resistance of the alloy material 22, and then the change in resistance is converted into hydrogen concentration through a signal conditioning circuit, thereby realizing hydrogen monitoring.

[0036] Under different states of oil phase and gas phase, due to the different concentrations of hydrogen, the amplification factor of the sensor resistance value of the hydrogen detector 2 is different. Therefore, the hydrogen detector 2 can measure the concentration of hydrogen according to the change in resistance value, and the signal processor 4 can obtain the real-time status of the hydrogen detector 2 according to the data received from the hydrogen detector 2, that is, whether the hydrogen detector 2 has been converted from oil phase to gas phase.

[0037] It is worth noting that the hydrogen detector 2 includes a signal conditioning circuit, which can convert the resistance change into hydrogen concentration.

[0038] In the embodiment of the utility model, the hydrogen detector 2 is arranged in the body 1 and is located at the top of the body 1. The hydrogen detector 2 is used to detect the concentration of hydrogen in the body 1, and an alloy material 22 for catalyzing hydrogen is arranged in the probe 21 of the hydrogen detector 2, and hydrogen atoms catalyzed by hydrogen are adsorbed by the alloy material 22. The gas relay with hydrogen detection function disclosed in the above embodiment can detect the concentration of hydrogen inside the body 1 in real time through the hydrogen detector 2, and the application will not affect other gases in the body 1. Therefore, it can effectively avoid consuming hydrogen in the light gas in order to detect the content of hydrogen in the light gas, effectively avoid the reduction of the overall content of light gas, ensure the accuracy of the light gas alarm, and judge based on the measured value and the measured medium (oil phase or gas phase) to better evaluate the operating status of the transformer.

[0039] Specifically, the alloy material 22 is a Pd—Ni alloy film.

[0040] It should be noted that the alloy material 22 is set as a Pd-Ni alloy film, which increases the contact area with hydrogen, can quickly catalyze hydrogen into hydrogen atoms, and adsorb hydrogen atoms in the lattice of the Pd-Ni alloy.

[0041] It should also be noted that the alloy material 22 may be a Pd-Ni alloy, or other alloy materials (such as other palladium alloy materials) that can catalyze hydrogen into hydrogen atoms, and those skilled in the art may select the alloy material according to their needs.

[0042] Preferably, the thickness of the Pd-Ni alloy film is 0.1 mm.

[0043] Further, refer to Figure 2 , Figure 2 for Figure 1 A schematic diagram of the middle probe 21 at point A, an oil guide groove 23 is provided on the top of the probe 21.

[0044] It should be noted that by opening the oil guide groove 23 at the top of the probe 21, the state of the hydrogen detector 2 can be quickly changed from the oil phase to the gas phase, thereby quickly removing the oil film and effectively improving the detection speed of the hydrogen concentration.

[0045] Specifically, there are multiple oil guide grooves 23 .

[0046] It should be noted that, by providing a plurality of oil guide grooves 23 , the oil film removal speed can be further increased, thereby further increasing the hydrogen concentration detection speed.

[0047] Specifically, the probe 21 includes: a first joint tube and a second joint tube;

[0048] The first end of the first connecting pipe is connected to the second connecting pipe at a preset angle;

[0049] The alloy material 22 is disposed at the second end of the first connecting pipe.

[0050] It should be noted that the first end of the first connecting tube is connected to the second connecting tube at a preset angle; the alloy material 22 is arranged at the second end of the first connecting tube, which can effectively and quickly remove the oil film on the alloy material 22 at the second end of the first connecting tube, thereby quickly realizing hydrogen detection.

[0051] Furthermore, the preset angle is 90°.

[0052] It should be noted that the preset angle can be 90°, 70°, or 60°, and those skilled in the art can choose any angle between 0° and 90°, but the preset angle of the present application is preferably 90°.

[0053] Furthermore, the gas relay with hydrogen detection function also includes: a liquid level sensor 3, a signal processor 4 and a power supply 5;

[0054] The liquid level sensor 3 is arranged in the body 1 and is used to detect the oil level in the body 1;

[0055] The signal processor 4 is in communication connection with the hydrogen detector 2 and the liquid level sensor 3, and is used to process the concentration of the hydrogen detector 2 and the data transmitted by the liquid level sensor 3, and to output the data in the oil phase or gas phase in different states according to the state switching of the hydrogen detector 2;

[0056] The power supply is electrically connected to the hydrogen detector 2 , the liquid level sensor 3 and the signal processor 4 .

[0057] It should be noted that the signal processor 4 includes a built-in software algorithm. The signal processor 4 can analyze and process the hydrogen concentration data transmitted by the hydrogen detector 2 and the data transmitted by the liquid level sensor 3, and convert them into a data format that can be used by the built-in software algorithm. The built-in software algorithm then performs calculations according to a specific algorithm, and finally outputs the obtained results.

[0058] Specifically, the power supply 5 is a 24V DC power supply.

[0059] It should be noted that the power supply 5 may be a 24V DC power supply, or a DC power supply 5 of other voltages (such as 12V, 36V, 48V, etc.), and those skilled in the art may select according to needs.

[0060] Furthermore, the gas relay with hydrogen detection function further includes: a communication module 6;

[0061] The communication module 6 is connected to the signal processor 4 for communication, and is used for communication with the terminal device.

[0062] It should be noted that, by providing a communication module 6 electrically connected to the processor, the communication module 6 can transmit the hydrogen content and the judgment status of the hydrogen detector 2 to the terminal device through a communication connection with the terminal device.

[0063] During the installation process of the hydrogen detector 2 of the present application, the upper inspection window of the gas relay can be used, that is, the upper inspection window is first disassembled, then the hydrogen detector 2 is installed, and finally the upper inspection window is installed.

[0064] Based on the gas relay with hydrogen detection function provided in the above embodiment, the embodiment of the utility model further provides a transformer, the transformer comprising: a gas relay with hydrogen detection function;

[0065] The Buchholz relay includes:

[0066] Ontology 1;

[0067] The hydrogen detector 2 is arranged in the main body 1 and located at the top of the main body 1. The hydrogen detector 2 is used to detect the concentration of hydrogen in the main body 1, wherein the probe 21 of the hydrogen detector 2 is provided with an alloy material 22 for catalyzing hydrogen, and the alloy material 22 is used to adsorb hydrogen atoms catalyzed by hydrogen.

[0068] In the embodiment of the utility model, the hydrogen detector 2 is arranged in the body 1 and is located at the top of the body 1. The hydrogen detector 2 is used to detect the concentration of hydrogen in the body 1, and an alloy material 22 for catalyzing hydrogen is arranged in the probe 21 of the hydrogen detector 2, and hydrogen atoms catalyzed by hydrogen are adsorbed by the alloy material 22. The gas relay with hydrogen detection function disclosed in the above embodiment can detect the concentration of hydrogen inside the body 1 in real time through the hydrogen detector 2, and the application will not affect other gases in the body 1. Therefore, it can effectively avoid consuming hydrogen in the light gas in order to detect the content of hydrogen in the light gas, effectively avoid the reduction of the overall content of light gas, ensure the accuracy of the light gas alarm, and judge based on the measured value and the measured medium (oil phase or gas phase) to better evaluate the operating status of the transformer.

[0069] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gas relay with hydrogen detection function, characterized in that: include: ontology; A hydrogen detector is arranged in the body and located at the top of the body. The hydrogen detector is used to detect the concentration of hydrogen in the body. The probe of the hydrogen detector is provided with an alloy material for catalyzing hydrogen, and the alloy material is used to adsorb hydrogen atoms catalyzed by hydrogen.

2. The gas relay with hydrogen detection function according to claim 1, characterized in that: The alloy material is a Pd-Ni alloy film.

3. The gas relay with hydrogen detection function according to claim 1, characterized in that: An oil guide groove is arranged on the top of the probe.

4. The gas relay with hydrogen detection function according to claim 3, characterized in that: The number of the oil guide grooves is multiple.

5. The gas relay with hydrogen detection function according to claim 1, characterized in that: The probe comprises: a first connecting tube and a second connecting tube; The first end of the first connecting pipe is connected to the second connecting pipe at a preset angle; The alloy material is arranged at the second end of the first connecting pipe.

6. The gas relay with hydrogen detection function according to claim 5, characterized in that: The preset angle is 90°.

7. The gas relay with hydrogen detection function according to claim 1, characterized in that: Also includes: Liquid level sensor, signal processor and power supply; The liquid level sensor is arranged in the body and is used to detect the height of the oil in the body; The signal processor is in communication connection with the hydrogen detector and the liquid level sensor, and is used to process the concentration of the hydrogen detector and the data transmitted by the liquid level sensor, and to output data in the oil phase or gas phase in different states according to the state of the hydrogen detector; The power supply is electrically connected to the hydrogen detector, the liquid level sensor and the signal processor.

8. The gas relay with hydrogen detection function according to claim 7, characterized in that: The power supply is a 24V DC power supply.

9. The gas relay with hydrogen detection function according to claim 7, characterized in that: Also includes: Communication module; The communication module is communicatively connected to the signal processor and is used for communicating with the terminal device.

10. A transformer, characterized in that: A gas relay with a hydrogen detection function as claimed in any one of claims 1 to 9.

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