Circulating flow measurement type SF6 micro-water on-line monitoring and transmitting structure

Abstract

The utility model relates to the technical field of electrical equipment, and discloses a circulating flow measurement type SF6 micro-water on-line monitoring and transmitting structure, the bottom of a micro-water humidity sensor is connected with a circulating box used for being in sealed connection with a high-voltage switch container, the bottom of the circulating box is connected with an air pipe, the air pipe and the high-voltage switch container are sealed by a flange, and the high-voltage switch container is connected with the circulating box. At least three gas pipes are arranged at the bottom of the circulation box, two independent branch pipes are installed on the inner sides of the gas pipes, and at least six branch pipes are used for enabling gas on the inner side of the circulation box and a high-voltage switch container to be subjected to in-out circulation. According to the utility model, the fan is used for starting the space behind the measuring bin to generate negative pressure, so that the pressure of gas in the high-pressure switch container connected with the branch pipes in the gas inlet is higher than that of the measuring bin, and the gas enters the measuring bin from at least three branch pipes along the gas inlet and then is rotated and mixed by the fan; the beneficial effects that multi-point synchronous extraction detection is carried out on the high-voltage switch container, and the detection range is larger are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical equipment technical field, concretely is circulating flow measurement formula SF6 micro water on -line monitoring variable sending structure. BACKGROUND

[0002] Circulating flow measurement formula SF6 micro water on -line monitoring transmitter is a kind of instrument for monitoring trace moisture in gas, mainly for the application scene of SF6 (sulfur hexafluoride) gas, especially in electrical equipment and high-voltage equipment, prior art publication number CN202008455U circulating flow measurement formula SF6 micro water, density on -line monitoring transmitter, by transmitter interface, flange, gas power component, humidity sensor, transmitter body, gas guide pipe, valve constitutes a section of gas passage device.Transmitter interface, valve and sulfur hexafluoride container intercommunication, by gas power component makes the sulfur hexafluoride gas in container blow to micro water sensor probe and measures, solves the problem that original electronic sulfur hexafluoride micro water density sensor cannot measure the real micro water value of sulfur hexafluoride in container due to internal parts adsorption and moisture penetration, diffusion at connecting place.

[0003] The foregoing technical solution integrates the transmitter with the high-voltage switch container in a sealed manner, so that the gas is extracted for detection and then returned, improving the detection accuracy.However, the foregoing technical solution has a fixed installation position, and the valve position is also fixed, and the high-voltage switch container is internally closed.Each time of detection can only extract the SF6 gas in the connection area.If the micro water value changes due to damage in other areas, it cannot be detected in the first time.Also, even if the driving direction of the gas power component is changed, the foregoing technical solution can only extract the gas at both ends for detection, and cannot perform multi-point detection at one time. UTILITY MODEL CONTENTS

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a circulating flow measurement formula SF6 micro water on -line monitoring variable sending structure, which has the advantages of circulating extraction measurement on the whole in the high-voltage switch container, multi-point synchronous extraction detection on the high-voltage switch container, and larger detection range, etc., and solves the above technical problems.

[0006] Technical solution

[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: circulation flow measurement formula SF6 micro water on -line monitoring transmission structure, including micro water humidity sensor, the micro water humidity sensor bottom connection is used for with high pressure switch container sealed connection's circulation box, circulation box bottom connection trachea, trachea is sealed with high pressure switch container use flange, circulation box bottom setting minimum three trachea, the inside of two independent branch pipes is installed to the trachea, minimum six branch pipes are used for the circulation of gas in the inside of circulation box and high pressure switch container;

[0008] The inside of the circulation box is provided with a partition plate which divides the inside into upper and lower layers, the lower part of the partition plate is a measuring chamber, the measuring chamber is provided with a micro water humidity sensor, a hollow is formed in the center of the partition plate, and the upper part of the partition plate is a mixing and transmitting chamber, a plurality of gas inlets corresponding to half of the number of branch pipes are formed in the bottom surface of the measuring chamber, a plurality of gas outlets corresponding to the other half of the number of branch pipes are formed in the bottom surface of the mixing and transmitting chamber, and a fan is installed at the center of the partition plate.

[0009] Preferably, half of the branch pipes are used for gas inlet and half of the branch pipes are used for gas outlet, and two branch pipes in one trachea cannot simultaneously intake or exhaust.

[0010] Preferably, the top of the fan is fixedly connected with a connecting rod, the top of the connecting rod is connected with a driving tooth which extends into the mixing and transmitting chamber, the side of the driving tooth is engaged with a transmission tooth, the side of the transmission tooth is engaged with a tooth ring which is hollow, the tooth ring is located directly above the hollow and is rotationally connected to the bottom surface of the mixing and transmitting chamber, a cover in the shape of an inverted bowl is installed on the side of the tooth ring, and at least one opening is formed in the side wall of the cover.

[0011] Preferably, the transmission tooth is rotationally connected to the top surface of the mixing and transmitting chamber and simultaneously engaged with the driving tooth and the tooth ring.

[0012] Preferably, the rotational speed of the fan is synchronously transmitted to the driving tooth through the connecting rod, and the diameter of the driving tooth is equal to or smaller than the transmission tooth.

[0013] Preferably, the inner diameter of the tooth ring is equal to the sum of the diameter of the transmission tooth and the radius of the driving tooth, the rotational speed of the tooth ring is smaller than that of the fan, and the tooth ring is used to drive the cover to rotate so as to change the position of the opening of the cover to the plurality of gas outlets.

[0014] Compared with the prior art, the utility model provides a circulation flow measurement formula SF6 micro water on -line monitoring transmission structure, which has the following beneficial effects:

[0015] 1. The utility model discloses a fan rotation makes its rear that is the space of measuring bin negative pressure, thereby make the high pressure switch container inside gas pressure of the high pressure switch container inside gas pressure of the gas inlet inner branch pipe connection higher than the measuring bin, at this moment, gas enters the measuring bin along the gas inlet from the least three branch pipes, and then is mixed by the fan rotation, at this moment, the micro water humidity sensor detects the gas, because it is the mixed gas, the real micro water value of sulfur hexafluoride is the average value of the multiple collection points in the high pressure switch container, once the average value changes, then directly obtains that the high pressure switch container appears the problem of leakage, through the fan continues to rotate and pushes the gas forward, namely, pushes to the inside of mixed transmission bin, at this moment, the gas outlet of mixed transmission bin shuttle sets up and leads to the inside of high pressure switch container through the other half branch pipe, completes the circulation and reaches the beneficial effect that the whole in the high pressure switch container is extracted and measured in the circulation.

[0016] 2. The utility model discloses through branch pipe least sets up three, and arranges the gas inlet at the bottom of measuring bin, when the fan starts the space of its rear that is the negative pressure of measuring bin, thereby make the high pressure switch container inside gas pressure of the high pressure switch container inside gas pressure of the gas inlet inner branch pipe connection higher than the measuring bin, at this moment, gas enters the measuring bin along the gas inlet from the least three branch pipes, and then is mixed by the fan rotation, reaches the beneficial effect that the high pressure switch container is extracted and detected in the multi-point synchronous, thereby the detection range is greater. ACCURACY

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the structure right section of circulating box of the utility model;

[0019] Figure 3 It is the enlarged schematic diagram of circulating box structure of the utility model;

[0020] Figure 4 It is the enlarged schematic diagram of fan structure of the utility model;

[0021] Figure 5 It is the enlarged schematic diagram of the cover structure of the utility model.

[0022] Among them: 1, micro water humidity sensor;2, circulating box;201, gas pipe;202, branch pipe;3, baffle;301, measuring bin;302, mixed transmission bin;303, gas inlet;304, gas outlet;4, fan;5, connecting rod;501, drive tooth;502, transmission tooth;503, tooth ring;6, cover;601, opening. DETAILED DESCRIPTION

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Please refer to Figures 1-5 , the circulating flow measurement type SF6 micro water online monitoring transmission structure, including micro water humidity sensor 1, the bottom of micro water humidity sensor 1 is connected with the circulating box 2 for sealing connection with high voltage switch container, the bottom of circulating box 2 is connected with air pipe 201, air pipe 201 is sealed with flange with high voltage switch container, at least three air pipes 201 are arranged at the bottom of circulating box 2, two independent branch pipes 202 are installed in the inner side of air pipe 201, and at least six branch pipes 202 are used to circulate the gas in the inner side of circulating box 2 with high voltage switch container;

[0025] The middle end of the inner side of circulating box 2 is provided with a partition plate 3, which is divided into upper and lower layers, the measuring bin 301 is arranged below the partition plate 3, the micro water humidity sensor 1 is arranged in the measuring bin 301, the center of the partition plate 3 is provided with a hollow, and the upper part is a mixed transmission bin 302, the bottom surface of the measuring bin 301 is provided with a gas inlet 303 corresponding to half of the number of branch pipes 202, the bottom surface of the mixed transmission bin 302 is provided with a gas outlet 304 corresponding to the other half of the number of branch pipes 202, and the fan 4 is arranged at the center of the partition plate 3.

[0026] Further, the micro water humidity sensor 1 is an existing device, and the structure or circuit of the micro water humidity sensor 1 is not improved in the present application, the model of the micro water humidity sensor 1 is WFS-S6DPT, and the principle and installation requirements of the corresponding micro water humidity sensor 1 are not repeated here.

[0027] Further, the internal space of the circulating box 2 is communicated with the internal space of the high voltage switch container through the air pipe 201, at this time, half of the number of branch pipes 202 are connected into the measuring bin 301 through the gas inlet 303, and the other half of the number of branch pipes 202 are connected into the mixed transmission bin 302 through the gas outlet 304.

[0028] Further, after the air pipe 201 is connected with the high voltage switch container, the two are sealed by using the flange, and then the fan 4 is started to circulate the high voltage switch container for measurement, wherein the fan 4 is a servo motor driven by a single-chip microcomputer, and the speed of the fan 4 can be controlled through the wireless network transceiver structure shown in the drawings, and since the speed control belongs to the existing technology of the servo motor provided with a single-chip microcomputer, and the present application does not improve it, the principle part will not be repeated here.

[0029] Further, the space behind the fan 4, that is, the space of the measuring chamber 301, is made to have a negative pressure by the rotation of the fan 4, so that the gas pressure inside the high-pressure switch container to which the branch pipes 202 are connected is higher than the gas pressure in the measuring chamber 301. At this time, the gas from the three branch pipes 202 enters the measuring chamber through the gas inlet 303, and is then mixed by the rotation of the fan 4. At this time, the micro water humidity sensor 1 detects the gas. Since the gas is mixed, the true micro water value of the sulfur hexafluoride is the average value of the collection points in the high-pressure switch container. Once the average value changes, it is directly concluded that the high-pressure switch container has a leakage problem.

[0030] Further, the fan continues to rotate to push the gas forward, that is, to push the gas into the mixing and transmitting chamber 302. At this time, the gas outlet 304 of the mixing and transmitting chamber 302 is connected to the other half of the branch pipes 202 to guide the gas into the high-pressure switch container, completing the circulation.

[0031] Further, since the fan is connected with the driving teeth 501, the fan 4 will drive the transmission teeth 502 and the tooth ring 503 to rotate when the fan 4 rotates, so as to drive the cover 6 to rotate synchronously. Finally, the opening 601 of the cover 6 as the gas outlet area of the cover 6 will guide the gas to be evenly dispersed, and then the evenly dispersed gas will enter the high-pressure switch container again through the branch pipes 202 under the action of the gas pressure.

[0032] Further, since there are two branch pipes 202 in the gas pipe 201, one in the measuring chamber 301 and the other in the mixing and transmitting chamber 302, the simultaneous gas inlet and outlet phenomenon will not occur under the action of the gas pressure, and the gas outlet must be the mixed gas.

[0033] In use, the inside space of the circulation box 2 is communicated with the inside of the high-pressure switch container through the air pipe 201, at this time, half of the number of the branch pipes 202 are connected to the measuring bin 301 through the air inlet 303, and the other half of the number of the branch pipes 202 are connected to the mixing and transmitting bin 302 through the air outlet 304, the fan 4 is started to carry out the circulation flow type measurement of the high-pressure switch container, the space behind the fan 4, that is, the space of the measuring bin 301, is caused to produce negative pressure through the rotation of the fan 4, so that the gas pressure inside the high-pressure switch container connected by the branch pipes 202 in the air inlet 303 is higher than the gas pressure in the measuring bin 301, at this time, the gas from the least three branch pipes 202 enters the measuring bin along the air inlet 303, and then is mixed by the rotation of the fan 4, at this time, the micro water humidity sensor 1 detects the gas, since the mixed gas, the real micro water value of the sulfur hexafluoride is the average value of the collection points in the high-pressure switch container, once the average value changes, the problem of the leakage of the high-pressure switch container is directly obtained, since the fan is connected with the driving teeth 501, when the fan 4 rotates, the transmission teeth 502 and the gear ring 503 are driven to rotate, so as to drive the cover 6 to rotate synchronously, finally, with the rotation of the cover 6, the opening 601 of the cover 6 as the air outlet area of the cover 6 will guide the gas to be evenly dispersed, and then the evenly dispersed gas enters the high-pressure switch container from the branch pipes 202 again under the action of the gas pressure.

[0034] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circulating flow measurement type SF6 micro-moisture online monitoring and transmission structure, comprising a micro-moisture humidity sensor (1), wherein the bottom of the micro-moisture humidity sensor (1) is connected to a circulation box (2) for sealing connection with a high-voltage switch container, the bottom of the circulation box (2) is connected to an air pipe (201), and the air pipe (201) is sealed to the high-voltage switch container using a flange, characterized in that: The bottom of the circulation box (2) is provided with at least three air pipes (201), two independent branch pipes (202) are installed in the inner side of the air pipes (201), and at least six branch pipes (202) are used to circulate the gas in the circulation box (2) with the high-pressure switch container; The middle end of the inner side of the circulation box (2) is provided with a partition plate (3) which is divided into upper and lower layers, the lower part of the partition plate (3) is a measuring bin (301), the measuring bin (301) is provided with a micro water humidity sensor (1), a hollow is formed in the center of the partition plate (3), and the upper part is a mixed transmission bin (302), a gas inlet (303) corresponding to half of the number of branch pipes (202) is formed in the bottom surface of the measuring bin (301), a gas outlet (304) corresponding to the other half of the number of branch pipes (202) is formed in the bottom surface of the mixed transmission bin (302), and a fan (4) is installed at the center of the partition plate (3).

2. The circulating flow measurement type SF6 micro-water on-line monitoring transmission structure according to claim 1, characterized in that: Half of the branch pipes (202) are used for air inlet and half are used for air outlet, and two branch pipes (202) in one air pipe (201) cannot simultaneously intake or exhaust air.

3. The circulating flow measurement type SF6 micro-water on-line monitoring transmission structure according to claim 1, characterized in that: The top of the fan (4) is fixedly connected with a connecting rod (5), the top of the connecting rod (5) is connected with a driving tooth (501) extending into the mixed transmission bin, the side of the driving tooth (501) is engaged with a transmission tooth (502), the side of the transmission tooth (502) is engaged with a tooth ring (503) which is hollow, the tooth ring (503) is located directly above the hollow and is rotationally connected to the bottom surface of the mixed transmission bin (302), and the side of the tooth ring (503) is provided with a cover (6) in the form of an inverted bowl, and at least one opening (601) is formed in the side wall of the cover (6).

4. The circulating flow measurement type SF6 micro-water on-line monitoring transmission structure according to claim 3, characterized in that: The transmission tooth (502) is rotationally connected to the top surface of the mixed transmission bin (302) and simultaneously engages the driving tooth (501) and the tooth ring (503).

5. The circulating flow measurement type SF6 micro-water on-line monitoring transmission structure according to claim 4, characterized in that: The rotating speed of the fan (4) is synchronously transmitted to the driving tooth (501) through the connecting rod (5), and the diameter of the driving tooth (501) is equal to or smaller than that of the transmission tooth (502).

6. The circulating flow measurement type SF6 micro-water on-line monitoring transmission structure according to claim 5, characterized in that: The inner diameter of the tooth ring (503) is equal to the sum of the diameter of the transmission tooth (502) and the radius of the driving tooth (501), the rotating speed of the tooth ring (503) is less than that of the fan (4), and the tooth ring (503) is used to drive the cover (6) to rotate to change the position of the opening (601) to the multiple gas outlets (304).

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