CN111014177B - Sealed section leakage probe cavity purging device and system - Google Patents
Sealed section leakage probe cavity purging device and system Download PDFInfo
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- CN111014177B CN111014177B CN201911172108.8A CN201911172108A CN111014177B CN 111014177 B CN111014177 B CN 111014177B CN 201911172108 A CN201911172108 A CN 201911172108A CN 111014177 B CN111014177 B CN 111014177B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
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Abstract
The invention discloses a sealing section leakage probe chamber purging device and a system, wherein the sealing section leakage probe chamber purging device comprises a host machine for generating positive pressure gas and negative pressure, a blowing and sucking gun, and a positive pressure pipeline and a negative pressure pipeline which are connected with the host machine and the blowing and sucking gun; the gun head of the blowing and sucking gun is connected to the round hole where the sealing section leakage probe is located in a matched mode and is in sealing connection with the sealing section leakage probe cavity, the main machine completes gas circulation in the sealing section leakage probe cavity through blowing and sucking of the gun head, and moisture and/or impurities in the sealing section leakage probe cavity are brought out. Compared with the original cleaning process, the device provided by the invention has the advantages that the cleaning effect and the safety protection are obviously improved.
Description
Technical Field
The invention relates to the field of nuclear power station instrument control maintenance, in particular to a sealing section leakage probe chamber purging device and system.
Background
The sensitive RIC leakage probe is fixed in the RIC leakage probe cavity and used for measuring the integrity of the boundary of a loop, so that the cleaning of the probe and the cavity becomes a technical key point for overhaul at each time, but the leakage probe cavity has a unique structure and extremely narrow space and has dead zones, so that the existing cleaning mode cannot achieve full coverage per cent, and the potential risk of mistakenly sending an alarm is generated, thereby interfering the judgment of operators on the integrity of the loop. In order to better finish the drying and cleaning work inside the overhaul leakage probe cavity, the probability of false alarm of the leakage probe is reduced on the instrument side, and further the state withdrawal and the entering of personnel with power caused by the false alarm are reduced, and the cleaning process needs to be further optimized.
At present, the cleaning work of the RIC sealing section chamber in the overhaul of each base can only depend on a hand-held rag for decontamination, and a method for drying the chamber by a hot air gun. However, this has several disadvantages: (1) because the cavity space structure of the sealing section is special, dead zones exist, accumulated water and dust are easy to remain, and the existing method cannot realize thorough cleaning; (2) the temperature of the hot air gun cannot be adjusted, water vapor in the cavity cannot be effectively dried and cleaned, and an O-shaped sealing ring in the sealing assembly is easy to burn; (3) each unit has 50 sealed section chambers, and the existing manual cleaning method has low efficiency; (4) radioactive water and dust are stored in the cavity of the sealing section, and the existing method cannot realize sealing isolation during cleaning, so that the surface of a worker is easily polluted.
Disclosure of Invention
The invention aims to solve the technical problem of providing a sealing section leakage probe chamber purging device and system aiming at the defects of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: constructing a sealing section leakage probe chamber purging device, which comprises a main machine for generating positive pressure gas and negative pressure, a blowing and sucking gun, and a positive pressure pipeline and a negative pressure pipeline which are connected with the main machine and the blowing and sucking gun;
the gun head of the blowing and sucking gun is connected to the round hole where the sealing section leakage probe is located in a matched mode and is in sealing connection with the sealing section leakage probe cavity, the main machine completes gas circulation in the sealing section leakage probe cavity through blowing and sucking of the gun head, and moisture and/or impurities in the sealing section leakage probe cavity are brought out.
Preferably, in the seal segment leakage probe chamber purging device, the main machine comprises a housing, a positive pressure device and a negative pressure device;
the positive pressure device comprises a positive pressure air source;
the negative pressure device comprises a negative pressure generator, a negative pressure controller for controlling the negative pressure and a negative pressure filter for filtering the exhausted gas.
Preferably, in the sealing section leakage probe chamber purging device of the present invention, the positive pressure gas source is an external compressed gas source, and the positive pressure device further includes a gas source interface and a positive pressure regulator for regulating a pressure of the positive pressure gas.
Preferably, in the sealing section leakage probe chamber purging device, the negative pressure filter is arranged at the front end and the rear end of the negative pressure generator;
the negative pressure filter is a cartridge filter, and comprises a first filter layer for filtering dust and a second filter layer for filtering moisture and odorous gas.
Preferably, in the purging device for the sealed section leakage probe cavity, the purging device further comprises a temperature and humidity detector for monitoring temperature and humidity of the gas and a dust detector for monitoring dust particle size.
Preferably, in the sealing section leakage probe chamber purging device, the gun head includes a spray head connected to the positive pressure pipeline and a suction nozzle connected to the negative pressure pipeline;
the nozzle sprays positive pressure gas, reaches the corner of the sealing section leakage probe cavity, and is sucked out by the suction nozzle after circulating through the sealing section leakage probe cavity.
Preferably, in the purging device for a sealing-section leakage probe chamber according to the present invention, the shower head is provided with a flow dividing portion for ejecting the positive pressure gas in a corner direction of the sealing-section leakage probe chamber.
Preferably, in the purging device for the sealing section leakage probe chamber, the gun head further includes a sealing gasket matched with the outer plane of the circular hole.
Preferably, in the sealing section leakage probe chamber purging device, the blowing and sucking gun further comprises a blowing and sucking start button for controlling the nozzle and the sucking nozzle to work simultaneously.
The invention also constructs a seal segment leak probe chamber purging system comprising: the seal segment leakage probe chamber purging device comprises a seal segment leakage probe chamber purging device body and a control system connected with the seal segment leakage probe chamber purging device body.
By implementing the invention, the following beneficial effects are achieved:
the sealing section leakage probe chamber purging device is connected to a round hole where the sealing section leakage probe is located in a matched mode through the gun head and is in sealed connection with the sealing section leakage probe chamber, positive pressure blowing and negative pressure sucking are carried out simultaneously, gas circulation is completed in the sealing section leakage probe chamber, all spaces in the sealing section leakage probe chamber are thoroughly purged, and moisture and/or impurities in the sealing section leakage probe chamber are brought out.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic structural view of a seal segment leak probe chamber of the present invention;
FIG. 2 is a block schematic diagram of a seal segment leak probe chamber purge arrangement of the present invention;
FIG. 3 is a schematic block diagram of a positive pressure apparatus of the present invention;
FIG. 4 is a schematic block diagram of the negative pressure device of the present invention;
FIG. 5 is a schematic cross-sectional view of a positive pressure filter and a negative pressure filter according to the present invention;
FIG. 6 is a schematic cross-sectional view of the leakage probe chamber of the sealing section of the blow-suction gun of the present invention;
FIG. 7 is a schematic cross-sectional view of a blow-and-suck gun of the present invention inserted into a leak probe chamber of a seal segment with a thimble tube;
FIG. 8 is a cross-sectional view of a leakage probe chamber of a sealing section with a thimble tube, wherein the blow-suction gun with a shunt part is inserted into the cavity;
FIG. 9 is a schematic cross-sectional view of a blow-and-suck gun with a flow-splitting portion according to the present invention;
fig. 10 is a schematic cross-sectional view of a blowing and sucking gun of the present invention applied to cleaning a groove at the tip of a finger sleeve.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
In recent years, leakage alarm of the RIC sealing section is frequent, and no leakage probe alarm of the sealing section has influence on maintaining or rising of the state of the unit. Therefore, how to prevent the generation of the leakage alarm of the sealing section provides great challenge for the prior art, which requires that the chamber and the probe are more thoroughly cleaned, the false alarm can not occur under the condition that the sealing section does not have real leakage, and no moisture or impurities are left after the guarantee treatment under the condition that the leakage or the seepage occurs.
The sealing section leakage probe chamber purging device is applied to overhaul work of RIC equipment, can promote effectiveness, safety and convenience of cleaning a leakage probe chamber, reduces the false alarm probability of primary circuit leakage, saves the working time of cleaning the chamber and avoids the radiation protection risk.
Fig. 1 shows the structure of a seal segment leakage probe chamber, which comprises a seal segment leakage probe chamber 10 and a seal segment leakage probe 20, wherein the seal segment leakage probe 20 is inserted into a round hole of the seal segment leakage probe chamber 10, and a stainless steel pipe, also called a thimble (not shown), is inserted into a seal segment assembly installed on site. It can be seen from the analysis of the cavity structure of the leakage probe that the inner wall surface around the leakage probe cavity 10 of the sealing section is difficult to reach by the existing cleaning process, i.e. the physical contact mode, and in the case of inserting the thimble, the volume of the area is extremely small, but in order to clean without dead angle and completely eliminate interference, the cleaning needs to be performed by the non-physical contact mode. Therefore, the device designs that the negative pressure and the positive pressure are matched to complete gas circulation in the sealing section leakage probe cavity, the principle is that high-speed positive pressure gas with certain pressure is adopted to break up water or impurities in the sealing section leakage probe cavity, and then the vacuum pump is directly used for providing negative pressure to suck the gas and the broken impurities, so that the gas can carry out moisture and impurities in the narrow cavity.
The invention discloses a sealing section leakage probe chamber purging device which comprises a main machine 1 for generating positive pressure gas and negative pressure, a blowing and sucking gun 4, and a positive pressure pipeline 2 and a negative pressure pipeline 3 for connecting the main machine 1 and the blowing and sucking gun 4.
The gun head 42 of the blowing and sucking gun 4 is connected to the round hole where the sealing section leakage probe is located in a matched mode and is in sealing connection with the sealing section leakage probe cavity, the main machine 1 completes gas circulation in the sealing section leakage probe cavity through blowing and sucking of the gun head 42, and moisture and/or impurities in the sealing section leakage probe cavity are brought out.
As shown in fig. 2, the main unit 1 includes a housing 11, and a power supply of a positive pressure device 12, a negative pressure device 13, and 220V mounted on the housing 11. Wherein, the positive and negative pressure flow is consistent, and the circulation is ensured.
The positive pressure device 12 includes a positive pressure gas source 121. The positive pressure is generated in various forms, including an internal connection compressed air source and an external connection compressed air source, wherein the internal connection compressed air source comprises a small-sized air compressor and a compressed air bottle, and the external connection compressed air source comprises an external connection public compressed air. These three forms were compared as shown in table 1 below:
TABLE 1
Through comparing the three forms, under the condition that the site has a compressed air source, the external compressed air source is used, the volume and the weight of the device can be effectively reduced, and enough positive pressure can be guaranteed to purge the cavity.
In this embodiment, as shown in fig. 3, the positive pressure air source 121 is an external compressed air source, and the positive pressure device 12 further includes an air source interface 122 for connecting the external compressed air source and a positive pressure regulator 123 for regulating the pressure of the positive pressure air. And preferably, the external compressed air source is an SAT air source, compressed air of the SAT air source is filtered and dried, the positive pressure air source 121 can be directly connected with the positive pressure pipeline 2 through the air source interface 122 and is conveyed to the blowing and sucking gun 4 through the positive pressure pipeline 2, then air circulation in the sealing section leakage probe cavity is completed through blowing and sucking of the gun head 42, and moisture and/or impurities in the sealing section leakage probe cavity are brought out.
The positive pressure of the positive pressure regulator 123 may be adjusted automatically by an electromagnetic regulating valve or manually by a small pressure reducing valve, and since the field positive pressure is used in a fixed place and the positive pressure is maintained at the maximum pressure or operated according to an empirical value in a field test, in the present embodiment, the positive pressure regulator 123 is adjusted by a small pressure reducing valve selected from the small pressure reducing valves having an outlet pressure of 0.01 to 1.0MPa and a maximum inlet pressure of 1.5 MPa.
In some embodiments, the positive pressure gas source 121 is an internal connection compressed gas source, the positive pressure device 12 further includes another gas source interface for connecting the internal connection compressed gas source and a positive pressure filter for drying and filtering moisture in the positive pressure gas, so as to prevent the moisture-containing gas from entering the cavity, the positive pressure filter conveys the positive pressure gas to the blowing and sucking gun 4 through the positive pressure pipeline 2 after filtering, then completes gas circulation in the sealed-section leakage probe cavity through blowing and sucking of the gun head 42, and carries out moisture and/or impurities in the sealed-section leakage probe cavity.
As shown in fig. 4, the negative pressure device 13 includes a negative pressure generator 131, a negative pressure controller 132 for controlling the negative pressure, and a negative pressure filter 133 for filtering the sucked gas. At present, a plurality of devices capable of generating negative pressure can be divided into an oil pump, a non-oil pump, a rotary vane pump, a diaphragm pump, a turbine fan and the like. In the present embodiment, the negative pressure generator 131 is preferably a turbo fan that is easy to control the negative pressure to generate the negative pressure, and the negative pressure provided by the turbo fan can be adjusted by controlling the rotation speed of the asynchronous motor. In the present embodiment, the negative pressure controller 132 is a frequency converter, and the rotation speed adjustment can be realized by changing the power frequency of the motor by using the frequency converter. The invention adopts a method that a PLC control system controls a frequency converter, and the PLC is necessary to be provided with an analog quantity output module and transmits an output 0-10V or 4-20mA analog quantity signal to a corresponding voltage or current input end of the frequency converter. The speed regulating method of the PLC controlled frequency converter has the advantages of simple wiring on hardware and capability of realizing stepless speed regulation. When the system is designed, the analog output module of the PLC is selected according to the input impedance of the frequency converter, and the signal range of the selected PLC analog output module is consistent with the input signal range of the frequency converter. The invention aims to select the PLC of S7-200 series and the frequency converter of M420 series which are commonly used in the market.
Further, in order to obtain the negative pressure value intuitively, a pressure sensor for detecting the negative pressure can be further arranged.
Because impurities and dust in a working occasion contain radioactivity, a negative pressure filter 133 is required to be arranged at the front end and the rear end of the negative pressure generator 131, the negative pressure filter 133 at the front end of the negative pressure generator 131 is connected with the negative pressure pipeline 3, and air at the outlet of the turbo fan is filtered to prevent the radioactive dust from diffusing, so that the functions of closed circulation and waste collection are realized.
In some embodiments, as shown in fig. 5, the positive pressure filter and the negative pressure filter 133 are cartridge filters including a first filter layer 1331 for filtering dust and a second filter layer 1332 for filtering moisture and odorous gases. Specifically, this cartridge filter is cylinder disposable design, and inhaled radiation dirt can not appear overflowing after being filtered in the bucket, and first filter layer filters for glass fiber filter paper, is 99.9% to the particulate matter filter effect of 0.1um, can filter radioactive dust. The second filter layer is a mixed layer of activated carbon and aluminosilicate compound for filtration, water vapor and odorous gas pass through the first filter layer and can be captured by the activated carbon and hydrophilic materials in the second filter layer, and finally the clean gas passing through the fan is filtered by the post-filter again and then is safely discharged.
And still can set up the humiture detector that is used for carrying out humiture monitoring to the gas that comes out and carry out the dust detector of dust particle size monitoring, detect the air quality that sweeps out, effectively realized the judgement to cleanliness in the cavity.
The positive pressure pipeline 2 and the negative pressure pipeline 3 can be integrated in the same sleeve, and an automatic winding and unwinding device is adopted, so that the size of the device can be reduced.
As shown in fig. 6, the blowing and sucking gun 4 includes a gun body 1 and a gun head 42, and the gun body 1 is provided with interfaces respectively matched with the positive pressure pipeline 2 and the negative pressure pipeline 3, so as to facilitate replacement of the blowing and sucking gun 4. The gun head 42 comprises a spray head 421 connected with the positive pressure pipeline 2 and a suction nozzle 422 connected with the negative pressure pipeline 3, wherein the spray head 421 sprays positive pressure gas, flows along the inner wall of the sealing section leakage probe cavity 10 to reach corners, and is sucked out by the suction nozzle 422 after circulating through the sealing section leakage probe cavity 10.
The gun head 2 is connected to the round hole where the leakage probe of the sealing section is located in a matching manner and is in sealing connection with the cavity of the leakage probe of the sealing section. In this embodiment, the lance head 2 is screwed with the circular hole, and a sealing gasket 424 is further disposed at the lance head 42 to match with an external plane of the circular hole, so as to further realize a sealing connection with the sealing section leakage probe cavity.
In some embodiments, as shown in fig. 6, the suction nozzle 422 is disposed at a central position, the spray head 421 is disposed around the periphery of the suction nozzle 422, the spray head faces the inner walls of the chamber at two sides of the circular hole, at this time, the positive pressure air flow is ejected from two sides of the gun head 42, flows along the inner walls of the chamber at two sides of the circular hole, reaches corners of the chamber, forms a circulation in the chamber, converges to the central position, is sucked and taken away by the suction nozzle 422 under negative pressure, and takes away the impurities and moisture inside along with the air flow, thereby achieving the purpose of cleaning.
In some embodiments, as shown in fig. 7, when the cavity of the sealing section leakage probe contains the stainless steel sleeve 30, the nozzle 421 is arranged at the central position, the suction nozzle 422 is arranged around the periphery of the nozzle 421, the suction nozzle 422 faces the inner wall of the cavity opposite to the circular hole, at this time, positive pressure air flow is ejected from the central hole, when the air flow meets the inner stainless steel sleeve, the air flow moves along the tangent line of the outer diameter of the stainless steel sleeve, after the air flow circulates for a circle along the cavity, the air flow is converged to the middle of the stainless steel sleeve and is sucked and taken away by the suction nozzle 422 under negative pressure, and internal impurities and moisture are taken away along with the air flow, so that the purpose of cleaning is achieved.
The chamber corner at the diagonal angle to the circular hole often accumulates the most impurities, and in order to enable the positive pressure gas flow to be directly sprayed to the corner, a flow dividing portion 423 is arranged at the nozzle 421, and is used for spraying the positive pressure gas to the corner direction of the probe chamber leaked from the sealing section. As shown in fig. 8 and 9, specifically, the suction nozzle 422 is disposed at a central position, the nozzle 421 is disposed around the periphery of the suction nozzle 422, the nozzle 421 faces the inner wall of the chamber at both sides of the circular hole, and when the positive pressure air flow is ejected from the central hole, the end of the nozzle 421 is provided with a branch portion 423, and the positive pressure air flow is branched at the end of the nozzle 421 and ejected to both sides at angles of 45 ° and 135 °. The flow splitter shown in the figures does not show where it is attached, it being understood that the flow splitter could be attached to both sides of the showerhead, forming gas injection passages at 45 ° and 135 °.
When the sealing section leakage probe cavity chamber contains the stainless steel sleeve, the positive pressure air flow can do tangential motion along the outer diameter of the stainless steel sleeve inside, and the component proportion of the tangential motion of the positive pressure air along the outer diameter of the stainless steel sleeve can be obviously increased. Or when the sealing section leaks and does not contain the stainless steel sleeve in the probe cavity, the positive pressure airflow directly sprays to two corners, and can be taken away by suction nozzle 422 negative pressure suction after the airflow circulates a week along the cavity inner wall that will clear up, has more obvious clearance effect to the both sides base angle that the cavity is the hardest to clear up.
Because the present invention adopts the mode of simultaneously performing positive pressure blowing and negative pressure suction, the blowing and sucking gun 4 further comprises a blowing and sucking start button 43 for controlling the nozzle 421 and the suction nozzle 422 to work simultaneously. The blowing and suction gun 4 is a handheld mode which is easy to operate on site, and the gun body 41 and the gun head 42 are made of hard and wear-resistant materials.
In some embodiments, as many as 50 seal segment leakage probe chambers need to be cleaned in the field, so the device is designed with a certain number of expansion interfaces, and a plurality of chambers can be cleaned simultaneously. A plurality of expansion interfaces can be designed on the positive pressure device 12 and the negative pressure device 13 and are respectively connected with a plurality of positive pressure pipelines 2 and negative pressure pipelines 3, so that a plurality of blowing and sucking guns 4 can work simultaneously and can be closed when not in use, and therefore, the leakage probe cavities of a plurality of sealing sections can be simultaneously blown and cleaned, the working efficiency of personnel is greatly improved, and the working efficiency of 8 persons, H and root is improved to 0.5 person, H and root in the past.
The same working content as the cleaning of the sealed leakage probe cavity, the cleaning of the dactylotheca leakage probe cavity is routine work of each overhaul, a plurality of steps of white cloth cleaning, hot air gun drying, dust suction of a dust collector and the like are required to be carried out in the overhaul, and the cleaning workload of 50 probe cavities cannot be ignored. With the clean difference of sealed section leakage probe cavity, dactylotheca pipe leakage probe cavity opens towards dactylotheca pipe one side, and the cavity has both sides and external UNICOM when also overhauling, therefore when clean, especially when using hot-blast gun dry, the uncovered spill over of opposite side is easily followed to the radioactive dust to cause very big radiation protection risk.
Aiming at the cleaning of the leak probe cavity of the thimble tube, the blow-suction gun part can be improved by keeping the same main body part of the cleaning device according to the same principle. There are two improvement thinking: first, given that the chamber structures are similar, the difference means that the sleeve leakage probe chamber does not have an annular region similar to the seal section leakage probe chamber, so that the same gun head can be used for cleaning the sleeve leakage probe chamber, and the main body part is not required to be changed. But during the operation, a sealing plug is required to be arranged on the other side to keep tightness and prevent radioactive dust from diffusing. And secondly, the whole gun body can be improved, the two pipelines for blowing and sucking the gun body are separated, the blowing and sucking gun mouth is respectively connected with the two sides of the opening, and one end of the blowing and sucking gun mouth is blown and the other end of the blowing and sucking gun mouth is sucked, so that the cleaning effect can be achieved.
After ten years of major repair of the dactylotheca tube is cleaned, the feedback of the alarm of the leakage probe is caused because impurities are collected in the groove at the end part of the dactylotheca tube, and the judgment of the integrity of a loop of the unit and the state of the unit are influenced. Similar to the above, the cleaning of the groove at the tip of the finger sleeve can be improved on the blow-and-suck gun part by keeping the same main body part of the cleaning device according to the same principle as shown in fig. 10. The improvement idea is that the gun head is improved, and the impurities in the groove are scattered by positive-pressure high-speed gas and then captured by negative pressure.
The invention also constructs a seal segment leak probe chamber purging system comprising: the sealing section leakage probe cavity purging device comprises a sealing section leakage probe cavity purging device and a control system connected with the sealing section leakage probe cavity purging device. In some embodiments, the system further comprises a terminal touch display screen connected with the control system. The control system is a PLC control system, a user finishes man-machine information exchange with the PLC control system through a terminal touch display screen, and the PLC control system controls the positive pressure device or the negative pressure device to work. For example: the PLC control system is connected with the frequency converter, negative pressure generated by the turbine fan is adjusted by controlling the frequency converter, the pressure sensor is connected with the turbine fan, the detected pressure value is returned to the PLC control system, and a user can see the generated negative pressure value on the terminal touch display screen. And, the running state parameter of the whole device can be displayed on the display screen when necessary.
By implementing the invention, the following beneficial effects are achieved:
the sealing section leakage probe chamber purging device is connected to a round hole where the sealing section leakage probe is located in a matched mode through the gun head and is in sealed connection with the sealing section leakage probe chamber, positive pressure blowing and negative pressure sucking are carried out simultaneously, gas circulation is completed in the sealing section leakage probe chamber, all spaces in the sealing section leakage probe chamber are thoroughly purged, and moisture and/or impurities in the sealing section leakage probe chamber are brought out.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (9)
1. A purging device for a sealing section leakage probe cavity is characterized by comprising a main machine (1) for generating positive pressure gas and negative pressure, a blowing and sucking gun (4), and a positive pressure pipeline (2) and a negative pressure pipeline (3) for connecting the main machine (1) and the blowing and sucking gun (4);
a gun head (42) of the blowing and sucking gun (4) is connected to the round hole where the sealing section leakage probe is located in a matched mode and is in sealing connection with the sealing section leakage probe cavity;
the gun head (42) comprises a spray head (421) connected with the positive pressure pipeline (2) and a suction nozzle (422) connected with the negative pressure pipeline (3); the suction nozzle (422) is arranged at the central position, the spray head (421) is arranged around the periphery of the suction nozzle (422), and the spray head (421) faces the inner walls of the chambers at two sides of the round hole;
and the main machine (1) completes gas circulation in the sealing section leakage probe cavity through blowing and sucking of the gun head (42), and brings out moisture and/or impurities in the sealing section leakage probe cavity.
2. The seal segment leak probe chamber purge apparatus as claimed in claim 1, wherein the main machine (1) comprises a housing (11), a positive pressure device (12) and a negative pressure device (13);
the positive pressure device (12) comprises a positive pressure gas source (121);
the negative pressure device (13) comprises a negative pressure generator (131), a negative pressure controller (132) for controlling the negative pressure, and a negative pressure filter (133) for filtering the sucked gas.
3. The seal segment leak probe chamber purge apparatus according to claim 2, wherein the positive pressure gas source (121) is an external compressed gas source, and the positive pressure apparatus (12) further comprises a gas source interface (122) and a positive pressure regulator (123) for regulating the pressure of the positive pressure gas.
4. The seal segment leak probe chamber purge apparatus as claimed in claim 2, wherein the negative pressure filter (133) is provided at both a front end and a rear end of the negative pressure generator (131);
the negative pressure filter (133) is a cartridge filter including a first filter layer (1331) for filtering dust and a second filter layer (1332) for filtering moisture and odorous gas.
5. The seal segment leakage probe chamber purging device according to claim 1, further comprising a temperature and humidity detector for temperature and humidity monitoring of the gas to be sucked and a dust detector for dust particle size monitoring.
6. The purging device for the sealing section leakage probe chamber according to claim 1, wherein a branch portion (423) is disposed at the nozzle (421) for spraying the positive pressure gas towards a corner of the sealing section leakage probe chamber.
7. The seal segment leakage probe chamber purge apparatus according to claim 1, wherein the lance tip (42) further comprises a sealing gasket (424) matching the external planar surface of the circular bore.
8. The seal segment leak probe chamber purge apparatus according to claim 1, wherein the purge gun (4) further comprises a purge start button (43) for controlling the spray head (421) and the suction nozzle (422) to operate simultaneously.
9. A seal segment leak probe chamber purge system, comprising: a seal segment leak probe chamber purge apparatus as claimed in any of claims 1 to 8 and a control system connected thereto.
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| US11203047B1 (en) * | 2020-10-20 | 2021-12-21 | Diversitech Corporation | Projectile launcher |
| CN113385485B (en) * | 2020-12-21 | 2022-07-19 | 衡东辉宏机械制造有限公司 | Pneumatic scrap iron removing device and method for brake master pump cylinder body |
| CN117181744B (en) * | 2023-11-07 | 2024-02-23 | 沈阳欧施盾新材料科技有限公司 | Cleaning system and cleaning method for inner wall of aluminum alloy gas cylinder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6971141B1 (en) * | 1999-06-07 | 2005-12-06 | Sht Co., Ltd. | Surface-traveling mobile apparatus and cleaning apparatus using the same |
| CN202490703U (en) * | 2012-03-15 | 2012-10-17 | 余姚市吴兴铜业有限公司 | Siphon nozzle used for air dust-blowing gun |
| CN204544550U (en) * | 2015-04-13 | 2015-08-12 | 李海红 | A kind of industry ground slab spray equipment |
| CN204789066U (en) * | 2015-07-09 | 2015-11-18 | 重庆科技学院 | Few sampling probe of maintenance is swept in outer blowback of high efficiency filter |
| CN106232247A (en) * | 2014-04-22 | 2016-12-14 | 富士机械制造株式会社 | Suction nozzle cleaner and suction nozzle drying means |
| CN208701212U (en) * | 2018-03-29 | 2019-04-05 | 东莞太星机械有限公司 | Etch system |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02198680A (en) * | 1988-10-25 | 1990-08-07 | Nippon Kansen Kogyo Kk | Preventing mechanism for scattering due to air |
| DE19631229C1 (en) * | 1996-08-02 | 1998-03-05 | Johann Bieber | Hand pump for cleaning dowel holes |
| JP4494840B2 (en) * | 2003-06-27 | 2010-06-30 | 大日本スクリーン製造株式会社 | Foreign matter removing apparatus, substrate processing apparatus, and substrate processing method |
| CN201070606Y (en) * | 2007-06-18 | 2008-06-11 | 廖迎春 | Energy-saving aeration dust blowing device |
| JP5151598B2 (en) * | 2008-03-26 | 2013-02-27 | Ｊｆｅスチール株式会社 | Ironing method and ironing device |
| TW201436891A (en) * | 2013-03-25 | 2014-10-01 | Hon Hai Prec Ind Co Ltd | Air plasma cleaner device |
| CN204638644U (en) * | 2015-05-19 | 2015-09-16 | 隆卫辰 | The miniature sealing chamber dust arrester of bottle cap |
| CN105618431A (en) * | 2016-03-01 | 2016-06-01 | 王庆君 | Computer dust removal gun |
| CN205599599U (en) * | 2016-04-08 | 2016-09-28 | 杨德保 | Non -contact dust remover |
| CN206622394U (en) * | 2016-11-05 | 2017-11-10 | 丁义涛 | A kind of lathe fluid washer |
| CN107350225A (en) * | 2017-08-23 | 2017-11-17 | 黄石磊福机电设备有限公司 | A kind of automation equipment dust arrester |
| CN107824553A (en) * | 2017-12-01 | 2018-03-23 | 成都华西天然药物有限公司 | A kind of cleaning device for equipment gap |
| CN107900028A (en) * | 2017-12-20 | 2018-04-13 | 大竹县张家镇中心小学 | A kind of crevice cleaning device |
| CN208004436U (en) * | 2017-12-29 | 2018-10-26 | 天津鸿翔中鼎科技有限公司 | A kind of cleaning device of refrigeration equipment |
| CN108838112A (en) * | 2018-04-26 | 2018-11-20 | 中国电力科学研究院有限公司 | A kind of power distribution cabinet electrification suction sweeping device |
| CN108971130A (en) * | 2018-06-27 | 2018-12-11 | 安徽慕凡电子科技有限公司 | A kind of miniature instrument instrument cleaner |
| CN208825114U (en) * | 2018-07-09 | 2019-05-07 | 深圳市赫德电子有限公司 | A kind of cleaner for clean indoor equipment |
| CN209189402U (en) * | 2018-09-21 | 2019-08-02 | 中国石油天然气股份有限公司 | Dust-extraction unit for electrical equipment |
-
2019
- 2019-11-26 CN CN201911172108.8A patent/CN111014177B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6971141B1 (en) * | 1999-06-07 | 2005-12-06 | Sht Co., Ltd. | Surface-traveling mobile apparatus and cleaning apparatus using the same |
| CN202490703U (en) * | 2012-03-15 | 2012-10-17 | 余姚市吴兴铜业有限公司 | Siphon nozzle used for air dust-blowing gun |
| CN106232247A (en) * | 2014-04-22 | 2016-12-14 | 富士机械制造株式会社 | Suction nozzle cleaner and suction nozzle drying means |
| CN204544550U (en) * | 2015-04-13 | 2015-08-12 | 李海红 | A kind of industry ground slab spray equipment |
| CN204789066U (en) * | 2015-07-09 | 2015-11-18 | 重庆科技学院 | Few sampling probe of maintenance is swept in outer blowback of high efficiency filter |
| CN208701212U (en) * | 2018-03-29 | 2019-04-05 | 东莞太星机械有限公司 | Etch system |
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