CN109127183B - Salt mist generating device and salt mist spraying method for insulator - Google Patents
Salt mist generating device and salt mist spraying method for insulator Download PDFInfo
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- CN109127183B CN109127183B CN201810904680.8A CN201810904680A CN109127183B CN 109127183 B CN109127183 B CN 109127183B CN 201810904680 A CN201810904680 A CN 201810904680A CN 109127183 B CN109127183 B CN 109127183B
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- 150000003839 salts Chemical class 0.000 title claims abstract description 110
- 239000012212 insulator Substances 0.000 title claims abstract description 98
- 238000005507 spraying Methods 0.000 title claims abstract description 93
- 239000003595 mist Substances 0.000 title description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 142
- 239000007921 spray Substances 0.000 claims abstract description 73
- 239000012267 brine Substances 0.000 claims abstract description 53
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 53
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 21
- 239000011780 sodium chloride Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims description 19
- 238000007906 compression Methods 0.000 claims description 19
- 238000012545 processing Methods 0.000 claims description 16
- 238000001802 infusion Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 6
- 230000032683 aging Effects 0.000 description 11
- 230000007774 longterm Effects 0.000 description 5
- 210000003437 trachea Anatomy 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000012266 salt solution Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
- B05B15/68—Arrangements for adjusting the position of spray heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
- B05B7/2486—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device with means for supplying liquid or other fluent material to several discharge devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
- B05B7/26—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device
- B05B7/262—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device a liquid and a gas being brought together before entering the discharge device
Abstract
The invention provides a salt spray generating device and a salt spray spraying method for an insulator, wherein the device comprises: the device comprises a gas conveying mechanism, a saline water conveying mechanism, a mixing mechanism and a spraying device; the gas conveying mechanism and the brine conveying mechanism are respectively communicated with two ends of the mixing mechanism, and the mixing mechanism is used for receiving and mixing the gas conveyed by the gas conveying mechanism and the brine conveyed by the brine conveying mechanism; the direction of the spraying device is adjustably communicated with the mixing mechanism so as to spray the gas-liquid mixture in the mixing mechanism to all directions of the insulator to be tested. According to the invention, on one hand, the concentration of the salt fog becomes uniform by uniformly mixing the gas and the salt water through the mixing mechanism, on the other hand, the spraying direction of the spraying device is adjusted to ensure that the salt fog is uniformly sprayed in all directions of the insulator to be tested, so that the influence of the salt fog on the insulator in the natural environment is simulated, and the test result is closer to the actual condition in the natural environment.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a salt spray generating device and a salt spray spraying method for an insulator.
Background
Since the birth of the power system, the problem of external insulation of the power transmission and transformation equipment threatens the safe and stable operation of the power system. In recent years, with the annual deterioration of atmospheric environment and the continuous improvement of the operating voltage of an overhead line in China, the probability and loss of insulator pollution flashover accidents are increased year by year.
Flashover is mainly affected by the insulator itself and by environmental conditions, which mainly refer to the salinity of the salt spray. In the prior art, a salt spray method is mainly adopted for researching the pollution flashover characteristic of the insulator under the salt spray condition.
The salt fog method is mainly characterized by that it sprays salt fog into artificial fog chamber, simulates the wetting of insulator under the condition of salt fog, and applies several hours of voltage to insulator under the condition of salt fog to observe the ablation and discharge of insulator, so that it can successfully reproduce the discharge phenomenon of insulator surface under the severe condition. However, in the prior art, the sprayed salt mist is not uniform, so that the wetting degree of the salt mist at each part of the insulator is not uniform, and the effect of the actual salt mist on the insulator cannot be simulated, so that the accuracy of the experimental result is affected, the salt mist environment in the natural environment cannot be simulated indoors to meet various requirements, and the aging and corrosion conditions of a plurality of insulators in the severe environment for a long time cannot be analyzed simultaneously, and accurate data statistics can be obtained.
Disclosure of Invention
In view of the above, the invention provides a salt spray generating device and a salt spray spraying method for an insulator, and aims to solve the problem that the experimental result is inaccurate due to uneven salt spray at present.
In one aspect, the present invention provides a salt spray generating device for an insulator, the device comprising: the device comprises a gas conveying mechanism, a saline water conveying mechanism, a mixing mechanism and a spraying device; the gas conveying mechanism and the brine conveying mechanism are respectively communicated with two ends of the mixing mechanism, and the mixing mechanism is used for receiving and mixing the gas conveyed by the gas conveying mechanism and the brine conveyed by the brine conveying mechanism; the direction of the spraying device is adjustably communicated with the mixing mechanism so as to spray the gas-liquid mixture in the mixing mechanism to all directions of the insulator to be tested.
Further, in the above-mentioned salt fog generating device for insulator, the spray set includes: universal adjusting joints and spray heads; one end of the universal adjusting joint is communicated with the mixing mechanism, the other end of the universal adjusting joint is communicated with the spray head, and the spray head adjusts the spraying direction of the liquid through the universal adjusting joint.
Further, in the above salt mist generating apparatus for an insulator, the mixing mechanism includes: the shell, the first connecting pipe and the second connecting pipe; wherein, the shell is provided with a first inlet and a second inlet; two ends of the first connecting pipe are respectively communicated with the first inlet and the gas conveying mechanism; and two ends of the second connecting pipe are respectively communicated with the second inlet and the brine conveying mechanism.
Furthermore, in the salt spray generating device for the insulator, the shell is further provided with an outlet, and the outlet is communicated with the spraying device.
Further, in the above salt mist generating apparatus for an insulator, the gas delivery mechanism includes: the annular air pipe is provided with an air inlet and an air outlet on the wall surface, and the air outlet is communicated with the first end of the mixing mechanism.
Further, in the above salt mist generating apparatus for an insulator, the gas delivery mechanism further includes: and the gas pipe is communicated with the gas inlet and is used for conveying gas into the annular gas pipe.
Further, in the above-mentioned salt fog generating device for insulator, the salt water delivery mechanism includes: annular brine pipe, inlet and liquid outlet have been seted up to annular brine pipe's wall, and the liquid outlet is linked together with mixing mechanism's second end.
Further, in the above-mentioned salt fog generating device for insulator, the salt water conveying mechanism further includes: the infusion tube is communicated with the liquid inlet and is used for conveying saline water into the annular saline water tube.
Furthermore, in the salt spray generating device for the insulator, the number of the mixing mechanisms is equal to that of the spraying devices, and the spraying devices are communicated with the mixing mechanisms in a one-to-one correspondence manner.
Further, above-mentioned salt fog generating device for insulator still includes: and the compression pump is connected with the gas conveying mechanism and is used for conveying the gas with the first preset pressure to the gas conveying mechanism.
Further, above-mentioned salt fog generating device for insulator still includes: and the variable frequency pump is connected with the brine conveying mechanism and used for conveying the brine with second preset pressure to the brine conveying mechanism.
Further, above-mentioned salt fog generating device for insulator still includes: and the processing unit is respectively connected with the compression pump, the variable frequency pump and the spraying device so as to control the frequency of the compression pump, the frequency of the variable frequency pump and the spraying direction of the spraying device.
Further, in the above salt fog generating device for an insulator, the processing unit includes: the system comprises a general processor, a digital signal processor and a special integrated circuit which are connected in sequence, wherein the special integrated circuit is connected with a compression pump, a variable frequency pump and a spraying device; or a general processor, a digital signal processor and a field programmable gate array which are connected in sequence, wherein the field programmable gate array is connected with the compression pump, the variable frequency pump and the spraying device.
Further, in the above salt fog generating device for an insulator, the processing unit further includes: a read only memory, a random access memory, a flash memory or an electrically erasable programmable read only memory connected to the CPU.
Further, the above salt mist generating device for an insulator further includes: and the bracket is connected with the gas conveying mechanism and/or the saline conveying mechanism so as to keep the gas conveying mechanism and/or the saline conveying mechanism stable.
In the invention, the mixing mechanism is respectively communicated with the gas conveying mechanism, the brine conveying mechanism and the spraying device, and the gas and the brine are uniformly mixed while being received. The spraying device is communicated with the mixing mechanism in an adjustable direction, so that the spraying direction can be adjusted according to the requirement. That is to say, on the one hand, make the concentration of salt fog become even through the even mixture of mixing mechanism to gas and salt solution, on the other hand makes salt fog spray in the each side of the insulator that awaits measuring to reach evenly through adjusting spray set's spraying direction to the even spraying of salt fog provides dual assurance, the influence that the insulator actually receives the salt fog in the simulated natural environment, thereby make the actual condition under the test result more close natural environment, and then can more accurately analyze the insulator and be in ageing, the corruption condition of adverse circumstances and statistics more accurate data for a long time more, provide the assurance for the long-term reliable operation of insulator, reduced because the harm that factors such as insulator ageing brought.
On the other hand, the invention also provides a salt spray spraying method for the insulator, which comprises the following steps: a conveying step, namely conveying gas and brine into the mixing mechanism through the gas conveying mechanism and the brine conveying mechanism; a mixing step, wherein a mixing mechanism receives and mixes gas and brine; and a spraying step, controlling a spraying device to spray salt mist to the insulator to be tested under a preset condition.
According to the invention, the insulator to be tested is subjected to salt spray spraying by using the salt spray generating device of the insulator, on one hand, the concentration of the salt spray is uniform by uniformly mixing gas and salt water through the mixing mechanism, on the other hand, the spraying direction of the spraying device is adjusted to enable the salt spray to be uniform in all directions of the insulator to be tested, so that double guarantee is provided for uniform spraying of the salt spray, the influence of the salt spray on the insulator in the natural environment is simulated, the test result is closer to the actual condition in the natural environment, the aging and corrosion conditions of the insulator in the severe environment for a long time can be more accurately analyzed, more accurate data can be counted, the guarantee is provided for the long-term reliable operation of the insulator, and the harm caused by the aging and other factors of the insulator is reduced.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a salt spray generating device for an insulator according to an embodiment of the present invention;
fig. 2 is a flowchart of a salt spray spraying method for an insulator according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The embodiment of the device is as follows:
referring to fig. 1, a preferred structure of the salt spray generating device for an insulator according to the present embodiment is shown. As shown, the apparatus comprises: the device comprises a gas conveying mechanism 1, a brine conveying mechanism 2, a mixing mechanism 3 and a spraying device 4. Wherein, a gas delivery mechanism 1 for delivering high-pressure compressed gas and a brine delivery mechanism 2 for delivering brine with certain pressure are respectively communicated with two ends of a mixing mechanism 3, thereby delivering the gas and the brine to the mixing mechanism 3. The mixing mechanism 3 receives and mixes the gas and the brine to form a gas-liquid mixture. The direction of the spraying device 4 is adjustably communicated with the mixing mechanism 3, and the direction of the spraying device 4 can be adjusted according to requirements, so that the gas-liquid mixture in the mixing mechanism 3 is uniformly sprayed to all directions of the insulator to be tested in a salt spray mode.
In this embodiment, the mixing mechanism 3 is respectively communicated with the gas delivery mechanism 1, the brine delivery mechanism 2 and the spraying device 4, and the gas and the brine are uniformly mixed while being received. The spraying device 4 is communicated with the mixing mechanism 3 in an adjustable direction, so that the spraying direction can be adjusted as required. That is to say, on the one hand, the concentration of the salt fog becomes even through the even mixing of gas and salt water by the mixing mechanism 3, on the other hand, the spraying direction of the spraying device 4 is adjusted to make the salt fog spray evenly in all directions of the insulator to be tested, thereby providing double guarantee for the even spraying of the salt fog, simulating the influence of the salt fog on the insulator in the natural environment, further making the test result more approximate to the actual situation under the natural environment, further more accurately analyzing the aging and corrosion situations of the insulator in the severe environment for a long time and counting more accurate data, providing guarantee for the long-term reliable operation of the insulator, and reducing the harm caused by the aging and other factors of the insulator.
In the above embodiment, the spraying device 4 may include: a universal adjusting joint (not shown in the figure) and a spray head 41. Wherein, the one end of universal regulation joint is linked together with mixing mechanism 3, and the other end of universal regulation joint is linked together with shower nozzle 41, through the change of the direction of universal regulation joint, can realize the change of the direction of shower nozzle 41 to realize spraying the change of direction.
In the above embodiment, the mixing mechanism 3 may include: a housing 31, a first connection pipe 32, and a second connection pipe 33. Wherein, the shell 31 is provided with a first inlet, a second inlet and an outlet. Both ends of the first connecting pipe 32 are respectively communicated with the first inlet and the gas delivery mechanism 1, and both ends of the second connecting pipe 33 are respectively communicated with the second inlet and the brine delivery mechanism 2. One end of a universal adjusting joint of the spraying device 4 is communicated with the outlet, or the universal adjusting joint is positioned in the shell 31, the universal adjusting joint is connected with the shell 31, one end of the universal adjusting joint is communicated with the inner space of the frame 31, the spray head 41 is positioned at the outlet, and one end of the spray head 41 is communicated with the other end of the universal adjusting joint. In specific implementation, the first connecting pipe 32 and the second connecting pipe 33 can be bent pipes, so that the shell 31 can be supported between the annular air pipe 11 and the annular brine pipe 21; both the annular gas tube 11 and the annular brine tube 21 may be seamless steel tubes supported by stainless steel.
In the above embodiment, the gas delivery mechanism 1 may include: annular trachea 11 and gas-supply pipe 12, air inlet and gas outlet have been seted up to annular trachea 11 wall, and the gas outlet is linked together with the first end of mixing mechanism 3, and the gas outlet is linked together with the one end of first connecting tube 32 promptly, and the air inlet is linked together with the output of gas-supply pipe 12 to can let in gas to annular trachea 11.
In the above embodiment, the saline delivery mechanism 2 may include: an annular saline tube 21 and an infusion tube 22. Wherein, annular brine pipe 21 and annular trachea 11 are arranged with one heart, and inlet and liquid outlet have been seted up to the wall of annular brine pipe 21, and the liquid outlet is linked together with the second end of mixing mechanism 3, and the liquid outlet is linked together with the one end of second connecting pipe 33 promptly, and the inlet is linked together with the output of transfer line 22 to can carry salt solution in the annular brine pipe 21.
The number of the mixing mechanisms 3 may be multiple, the number of the air outlets on the annular air pipe 11 and the number of the liquid outlets on the annular brine pipe 21 are equal to the number of the mixing mechanisms 3, the first connecting pipes 32 of the mixing mechanisms 3 are communicated with the air outlets in a one-to-one correspondence manner, and the second connecting pipes 33 of the mixing devices are communicated with the liquid outlets in a one-to-one correspondence manner. Each mixing mechanism 3 evenly sets up along the circumference of annular trachea 11 and/or annular brine pipe 21 to can spray a plurality of insulators that await measuring from a plurality of different directions, simultaneously, adjust the direction of shower nozzle 41 rather than corresponding through universal regulation joint, can realize spraying more angles, more directions to more insulators that await measuring.
The input end of the gas transmission pipe 12 of the gas transmission mechanism 1 is connected with a compression pump, and gas with first preset pressure can be transmitted into the gas transmission pipe 12 through the compression pump. The input end of the infusion tube 22 of the saline conveying mechanism 2 is connected with a variable frequency pump, and saline with a second preset pressure can be input into the infusion tube 22 through the variable frequency pump. The compression pump and the variable frequency pump are connected with the processing unit, and the frequency of the compression pump and the frequency of the variable frequency pump can be adjusted according to actual needs through the processing unit, so that the pressure of gas introduced into the mixing mechanism 3 and the pressure of salt water are adjusted, and the salt spray spraying amount is adjusted. Meanwhile, the processing unit can be further connected with the motor, an output shaft of the motor is connected with the universal adjusting joint of the spraying device 4, the processing unit adjusts the direction and the direction changing speed of the universal adjusting joint by controlling the parameters such as the steering and the rotating speed of the motor, further controls the spraying direction of the salt mist, and guarantees the uniform spraying of the insulator to be tested by simultaneously controlling the spraying amount and the spraying direction of the salt mist.
In the above embodiment, the processing unit may include: the universal processor, the digital signal processor and the special integrated circuit are sequentially connected, and the special integrated circuit is respectively connected with the compression pump, the variable frequency pump and the universal adjusting joint; alternatively, the processing unit may include: the device comprises a general processor, a digital signal processor and a field programmable gate array which are sequentially connected, wherein the field programmable gate array is respectively connected with a compression pump, a variable frequency pump and a universal adjusting joint, namely, an application specific integrated circuit and the field programmable gate array can be replaced mutually. When spraying to the insulator that awaits measuring, accessible sensor comes the real-time volume and the concentration of spraying that acquire the salt fog that sprays to the insulator that awaits measuring to learn to spray volume and concentration whether suitable, and can learn the volume of spraying of each direction of the insulator that awaits measuring, thereby learn liquid and spray whether even. The sensor outputs the acquired data to the general processor in the form of analog signals, the general processor outputs the received electric signals to the digital signal processor, the digital signal processor converts the received electric signals into digital signals and outputs the digital signals to the application specific integrated circuit or the field programmable gate array, the application specific integrated circuit or the field programmable gate array receives the digital signals and then carries out calculation processing, and the calculation results are fed back to the digital signal processor in the form of digital signals, the digital signal processor converts the received digital signals into electric signals and feeds the electric signals back to the general processor, and the general processor amplifies and outputs the signals, so that the relay is controlled, and then the frequency of the compression pump, the frequency of the variable frequency pump and the direction of the universal adjusting joint are controlled.
The processing unit may further include: a read only memory, a random access memory, a flash memory or an electrically erasable programmable read only memory connected to a CPU or the like to store data.
In the above embodiments, the bracket 5 is connected to the bottom of the annular air pipe 11 of the gas conveying mechanism 1 and/or the bottom of the annular brine pipe 21 of the brine conveying mechanism 2, so that the annular air pipe 11 and the annular brine pipe 21 are kept horizontal and stable, and the uniform salt mist spraying is further ensured.
In conclusion, in the embodiment, the mixing mechanism is respectively communicated with the gas conveying mechanism, the brine conveying mechanism and the spraying device, and the gas and the brine are uniformly mixed while being received. The spraying device is communicated with the mixing mechanism in an adjustable direction, so that the spraying direction can be adjusted according to the requirement. That is to say, on the one hand, make the concentration of salt fog become even through the even mixture of mixing mechanism to gas and salt solution, on the other hand makes salt fog spray in the each side of the insulator that awaits measuring to reach evenly through adjusting spray set's spraying direction to the even spraying of salt fog provides dual assurance, the influence that the insulator actually receives the salt fog in the simulated natural environment, thereby make the actual condition under the test result more close natural environment, and then can more accurately analyze the insulator and be in ageing, the corruption condition of adverse circumstances and statistics more accurate data for a long time more, provide the assurance for the long-term reliable operation of insulator, reduced because the harm that factors such as insulator ageing brought.
The method comprises the following steps:
referring to fig. 2, fig. 2 is a flowchart of a salt spray spraying method for an insulator according to this embodiment. As shown, the method comprises the following steps:
and a conveying step S210, wherein the gas conveying mechanism and the saline conveying mechanism convey gas and saline into the mixing mechanism.
Specifically, the salt spray generator for the insulator in the above device embodiment is used to perform salt spray on the insulator to be tested, and firstly, the gas conveying mechanism 1 and the salt water conveying mechanism 2 convey gas and salt water into the mixing mechanism 3.
A mixing step S220, where the mixing mechanism receives and mixes the gas and the brine.
Specifically, the mixing mechanism 3 receives the gas delivered by the gas delivery mechanism 1 and the brine delivered by the brine delivery mechanism 2, and mixes the two.
And a spraying step S230, controlling a spraying device to spray salt fog to the insulator to be tested under a preset condition.
Specifically, the spraying device 4 is controlled to spray salt mist to the insulator to be tested under a predetermined condition, and the predetermined adjustment may include salt mist concentration, spraying amount and spraying direction, that is, the processing unit controls the direction of the universal adjusting joint of the spraying device 4, so as to adjust the direction of the spray head 41, and the spray head 41 sprays salt mist to the insulator to be tested in the predetermined spraying direction; meanwhile, the frequency of the compression pump and the frequency of the variable frequency pump can be controlled by the processing unit, so that the pressure for conveying gas into the annular gas pipe 11 and the pressure for conveying brine into the annular brine pipe 21 are controlled, and the spray head 41 sprays salt mist on the insulator to be tested at a preset concentration and a preset spraying amount. In the spraying process, the direction of the universal adjusting joint, the frequency of the compression pump and the frequency of the variable frequency pump can be adjusted in real time, so that the requirements of different spraying directions, spraying amounts and spraying concentrations are met.
It should be noted that, for the specific structure and the implementation of the salt spray generating device for an insulator, reference may be made to the above device embodiment, and details of this embodiment are not described herein again.
The principles of the salt spray generating device for the insulator and the salt spray spraying method for the insulator are the same, and related parts can be referred to each other.
In conclusion, in the embodiment, the insulator to be tested is subjected to salt spray spraying by using the salt spray generating device of the insulator, on one hand, the concentration of the salt spray is enabled to be uniform by uniformly mixing gas and salt water through the mixing mechanism, on the other hand, the spraying direction of the spraying device is adjusted to enable the salt spray to be uniform in all directions of the insulator to be tested, so that double guarantee is provided for uniform spraying of the salt spray, the influence of the salt spray on the insulator in the natural environment is simulated, the test result is enabled to be closer to the actual situation under the natural environment, the aging and corrosion situations of the insulator in the severe environment for a long time can be more accurately analyzed, more accurate data can be counted, the guarantee is provided for the long-term reliable operation of the insulator, and the harm caused by the aging and other factors of the insulator is reduced.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (11)
1. A salt fog generating device for an insulator, comprising: the device comprises a gas conveying mechanism (1), a brine conveying mechanism (2), a mixing mechanism (3) and a spraying device (4); wherein the content of the first and second substances,
the gas conveying mechanism (1) and the saline water conveying mechanism (2) are respectively communicated with two ends of the mixing mechanism (3), and the mixing mechanism (3) is used for receiving and mixing the gas conveyed by the gas conveying mechanism (1) and the saline water conveyed by the saline water conveying mechanism (2); the spraying device (4) is communicated with the mixing mechanism (3) in a direction adjustable manner so as to spray the gas-liquid mixture in the mixing mechanism (3) to all directions of the insulator to be tested;
the gas delivery mechanism (1) comprises: the wall surface of the annular air pipe (11) is provided with an air inlet and an air outlet, and the air outlet is communicated with the first end of the mixing mechanism (3);
the brine conveying mechanism (2) comprises: the wall surface of the annular brine pipe (21) is provided with a liquid inlet and a liquid outlet, and the liquid outlet is communicated with the second end of the mixing mechanism (3);
the mixing mechanism (3) is provided with a plurality of mixing mechanisms, each mixing mechanism is uniformly arranged along the circumference of the annular air pipe and/or the annular brine pipe, the number of the spraying devices (4) is equal to that of the mixing mechanisms (3), and each spraying device (4) is correspondingly communicated with each mixing mechanism (3);
the mixing mechanism (3) comprises: a housing (31), a first connecting pipe (32), and a second connecting pipe (33); wherein, the shell (31) is provided with a first inlet and a second inlet; two ends of the first connecting pipe (32) are respectively communicated with the first inlet and the gas conveying mechanism (1); two ends of the second connecting pipe (33) are respectively communicated with the second inlet and the brine conveying mechanism (2), and the first connecting pipe and the second connecting pipe are both bent pipes; the shell (31) is also provided with an outlet which is communicated with the spraying device (4);
the salt spray generating device further comprises: the bracket (5), the bracket (5) is connected with the gas conveying mechanism (1) and/or the saline conveying mechanism (2) so as to keep the gas conveying mechanism (1) and/or the saline conveying mechanism (2) stable.
2. Salt fog generating device for insulators according to claim 1, characterized in that the spraying device (4) comprises: a universal adjusting joint and a spray head (41); one end of the universal adjusting joint is communicated with the mixing mechanism (3), the other end of the universal adjusting joint is communicated with the spray head (41), and the spray head (41) adjusts the spraying direction of liquid through the universal adjusting joint.
3. Salt fog generating device for insulators according to claim 1, characterized in that the gas conveying means (1) further comprises: the gas conveying pipe (12) is communicated with the gas inlet, and the gas conveying pipe (12) is used for conveying the gas into the annular gas pipe (11).
4. Salt fog generating device for insulators according to claim 1, characterized in that the salt water delivery mechanism (2) further comprises: the infusion tube (22) is communicated with the liquid inlet, and the infusion tube (22) is used for conveying the saline water into the annular saline water tube (21).
5. The salt fog generating device for an insulator according to any one of claims 1 to 4, further comprising: the compression pump is connected with the gas conveying mechanism (1) and is used for conveying the gas with first preset pressure to the gas conveying mechanism (1).
6. The salt fog generating device for an insulator of claim 5, further comprising: the variable frequency pump is connected with the brine conveying mechanism (2) and used for conveying the brine with second preset pressure to the brine conveying mechanism (2).
7. The salt fog generating device for an insulator of claim 6, further comprising: and the processing unit is respectively connected with the compression pump, the variable frequency pump and the spraying device (4) so as to control the frequency of the compression pump, the frequency of the variable frequency pump and the spraying direction of the spraying device (4).
8. Salt spray generating device for insulators according to claim 7, characterized in that said processing unit comprises: the system comprises a general processor, a digital signal processor and a special integrated circuit which are connected in sequence, wherein the special integrated circuit is connected with the compression pump, the variable frequency pump and the spraying device (4); or the general processor, the digital signal processor and the field programmable gate array are connected in sequence, and the field programmable gate array is connected with the compression pump, the variable frequency pump and the spraying device (4).
9. The salt fog generating device for an insulator of claim 8, wherein the processing unit further comprises: a read only memory, a random access memory, a flash memory or an electrically erasable programmable read only memory connected to the CPU.
10. The salt fog generating device for an insulator according to any one of claims 1 to 4, further comprising: the bracket (5) is connected with the gas conveying mechanism (1) and/or the saline water conveying mechanism (2) so as to keep the gas conveying mechanism (1) and/or the saline water conveying mechanism (2) stable.
11. A salt spray method using the salt spray generation device for an insulator according to any one of claims 1 to 10, comprising the steps of: a transportation step of transporting the gas and the brine into the mixing mechanism through the gas transportation mechanism and the brine transportation mechanism; a mixing step, wherein the mixing mechanism receives and mixes the gas and the brine; and a spraying step, controlling the spraying device to spray salt fog to the insulator to be tested under a preset condition.
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