CN101725833B - Compressed air distribution system for instrument and on-line isolation method for compressed air tank thereof - Google Patents
Compressed air distribution system for instrument and on-line isolation method for compressed air tank thereof Download PDFInfo
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- CN101725833B CN101725833B CN 200910188464 CN200910188464A CN101725833B CN 101725833 B CN101725833 B CN 101725833B CN 200910188464 CN200910188464 CN 200910188464 CN 200910188464 A CN200910188464 A CN 200910188464A CN 101725833 B CN101725833 B CN 101725833B
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Abstract
The invention relates to a compressed air distribution system for an instrument and an on-line isolation method for a compressed air tank thereof, and an isolation device is arranged between the upstream of the compressed air tank of the compressed air distribution system for an instrument and a compressed air source in an on-line manner. In the on-line isolation method, under the condition that the compressed air distribution system is operated continuously, a new pipeline and the isolation device are arranged on a bus pipe in series by a pipeline thermal tapping method; the pipeline originally connected the bus pipe and the compressed air tank are disconnected into a first part connected with the bus pipe and a second part connected with the compressed air tank; the first part of the old pipeline is blocked; and the isolation device and the second part of the old pipeline are connected by the pipeline. The compressed air tank can be repaired by using the isolation device to isolate the compressed air tank under the condition that the compressed air distribution system for an instrument is operated continuously. On-line installation can be realized by using the pipeline thermal tapping method to install the isolation device under the condition that the compressed air distribution system for an instrument is operated continuously.
Description
Technical field
The invention belongs to a kind of nuclear power station air supply system, relate in particular to the online partition method that a kind of instrument is used compressed air distribution system and compressed air cylinder thereof.
Background technique
The pneumatic type valve is widely used at industrial field, and especially at nuclear power station, the power of these valve events is pressurized air, for the application that need use a lot of pneumatic type valves simultaneously, then needs a cover compression air distribution system.Wherein, the part valve is had relatively high expectations to compressed-air actuated, require pressurized air not fluctuate, industry is normally come the store compressed air by compressed air cylinder, these compressed air cylinders mainly play the air pressure buffering, compressed air pressure can not fluctuated widely, provide stable pressurized air by compressed air cylinder to these valves.
At present, instrument generally only arranges safety check with the compressed air cylinder upstream in the compressed air distribution system, can not realize two-way isolation, if compressed air cylinder is overhauled, the necessary a whole set of instrument compressed air distribution system of stopping transport, yet, in some application, be not allow instrument to stop transport with compressed air distribution system.For example, in the nuclear power station field, a lot of equipment need to be controlled by SAR system (" SAR " is the code of instrument of nuclear power station with compressed air distribution system).
As shown in Figure 1, the SAR system has two compressed air cylinders 10---9SAR017BA, 9SAR018BA, these two compressed air cylinders 10 need to carry out periodical repair, and under the nuclear power station operating conditions, the SAR system can not stop transport again, 9SAR017BA, 9SAR018BA compressed air cylinder 10 upstreams of nuclear power station only arrange safety check 30 at present, as shown in Figure 2, compressed air cylinder 10 is managed 16 by pipeline 19 with the mother who is connected compressed air gas source and is connected, if these two compressed air cylinders 10 are overhauled, necessary stoppage in transit SAR system, this is unacceptable at nuclear power station.
Therefore, how to use in the situation of compressed air distribution system at the instrument of not stopping transport, realize the periodical repair of compressed air cylinder, real is problem anxious to be resolved.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, and the online partition method of a kind of instrument with compressed air distribution system and compressed air cylinder thereof is provided, and it can in the situation of not stopping transport, realize the periodical repair of compressed air cylinder.
For instrument of the present invention compressed air distribution system, above-mentioned technical problem is solved like this: this instrument has compressed air cylinder with compressed air distribution system, described compressed air cylinder upstream is connected with compressed air gas source, its downstream is connected with the pneumatic type valve, and isolation mounting is installed between compressed air cylinder upstream and the compressed air gas source online.
Further, described isolation mounting is separating valve.
Further, mother's pipe that described instrument is connected with compressed air gas source with the compressed air distribution system tool, female pipe is provided with the first lateral, and the first lateral is connected with compressed air cylinder, and isolation mounting is positioned on the first lateral.
Further, also be provided with the second lateral on described female pipe, the end seal of the second lateral.
Further, described instrument compressed air distribution system is nuclear power station SAR system, and it has two compressed air cylinders of 9SAR017BA, 9SAR018BA, and the compressed air cylinder upstream is respectively arranged with isolation mounting.
For the online partition method of instrument of the present invention with the compressed air cylinder of compressed air distribution system, above-mentioned technical problem is solved like this: the method may further comprise the steps:
In the situation that instrument is not stopped transport with compressed air distribution system, by the pipeline thermal boring method new pipeline and an isolation mounting are installed in series on female pipe;
Disconnect the original pipeline that connects female pipe and compressed air cylinder, with old pipeline block for mother manage the first portion that is connected and with the tank connected second portion of pressurized air;
The first portion of the old pipeline of shutoff;
The second portion that connects isolation mounting and old pipeline with pipeline.
Further, with the old pipeline of sealer shutoff, be that leak stopping is pressed in pressure sealing or band temperate zone.
Further, described pipeline thermal boring method is finished by a cover tapping equipment, and described tapping equipment comprises clamping device, guard mechanism and borehole drill construction; The first body that described clamping device has clamping part and vertically extended by clamping part, clamping part is straight tube-like, its internal diameter matches with female pipe external diameter; Described guard mechanism can be connected with the first body of clamping device, the sideboard that it has second body that can be connected with the first body and can move radially along the second body; Described borehole drill construction can be connected with guard mechanism, and it has the 3rd body and can be along the axially movable drill bit of the 3rd body in the 3rd body, and the 3rd body can be connected with the second body of guard mechanism.
Further, described pipeline thermal boring method may further comprise the steps:
The clamping part of clamping device is mounted on female pipe, makes the mouth of pipe of the first body over against the position of wanting perforate;
Guard mechanism is mounted on the first body, makes the second body and the first body over against being communicated with;
Borehole drill construction is mounted on the guard mechanism, makes the 3rd body and the second body over against being communicated with, thereby make the first body, the second body and the 3rd body jointly form the sealing channel that moves for drill bit;
Make drill bit in sealing channel, manage direction to mother and move, until the tubing at female Guan Shangxu perforate position is intercepted;
Thereafter, drill bit moves to the direction away from female pipe together with intercepting the tubing that gets off, and after drill bit was through the second body, screw rod was regulated, and baffle plate is moved, until block the second body fully to the second body direction;
At last, borehole drill construction is disassembled, leave and take clamping device and guard mechanism.
Further, when isolation mounting is installed, isolation mounting and new pipeline are installed on the second body of guard mechanism, adjusting screw rod makes baffle plate withdraw from the second body.
Compared with prior art, above-mentioned instrument arranges online between compressed air cylinder and compressed air gas source with compressed air distribution system isolation mounting has been installed, isolate compressed air cylinder by isolation mounting, thereby make instrument with compressed air distribution system in the situation of not stopping transport, can overhaul compressed air cylinder.By the pipeline thermal boring method isolation mounting is installed in the technique scheme, thus make instrument with compressed air distribution system in the situation of not stopping transport, can be implemented in the line installation.
Description of drawings
Fig. 1 is the schematic representation of existing SAR system.
Fig. 2 is the connection diagram of 9SAR017BA compressed air cylinder and female pipe in the existing SAR system.
Fig. 3 is the schematic representation of SAR system in a preferred embodiment of the present invention.
Fig. 4 is the connection diagram of 9SAR017BA compressed air cylinder and female pipe in the SAR system shown in Figure 3.
Fig. 5 to Fig. 9 is the process schematic representation of pipeline thermal boring method in the online partition method of compressed air cylinder of the present invention.
Embodiment
In order to make technical problem to be solved by this invention, technological scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The present invention executes in the example, by the pipeline thermal boring method isolation mounting is installed online between compressed air cylinder upstream and compressed air gas source.Like this, can in the situation that instrument is not stopped transport with compressed air distribution system, isolation mounting be installed, isolate compressed air cylinder by isolation mounting, so that compressed air cylinder is overhauled, and not affect instrument with the normal operation of compressed air distribution system.
Below take the SAR system in nuclear power station field as example, describe instrument of the present invention in detail with the online installation method of compressed air distribution system and compressed air cylinder thereof.
See also Fig. 3, this SAR system distributes pressurized air to several pneumatic type valves 1, it has two compressed air cylinders 10 of 9SAR017BA, 9SAR018BA, compressed air cylinder 10 upstreams are connected with the compressed air gas source (not shown) respectively, its downstream is connected with a plurality of pneumatic type valves 1 respectively, and isolation mounting 14 is installed respectively between compressed air cylinder 10 upstreams and the compressed air gas source online.In the present embodiment, above-mentioned isolation mounting 14 is separating valves, and certainly, it also can be other forms of structure for isolating pipelines.
The SAR system has the mother who is connected with compressed air gas source and manages 16, is connected with the first lateral on female pipe 16, and to connect compressed air cylinder 10, isolation mounting 14 is positioned on the first lateral (seeing aftermentioned for details).Also be provided with the second lateral (seeing aftermentioned for details) on female pipe 16, the terminal sealed glue sealing of the second lateral.During online isolation compressed air cylinder 10, concrete grammar is as follows:
At first, in the situation that the SAR system does not stop transport, by the pipeline thermal boring method new pipeline 17 and isolation mounting 14 mother that is installed in series is managed on 16;
Then, disconnect the original old pipeline 19 that connects female pipe 16 and compressed air cylinder 10, old pipeline 19 is blocked second portion for managing 16 first portions that are connected and be connected with compressed air cylinder 10 with mother;
Afterwards, the first portion of the old pipeline 19 of shutoff;
At last, the second portion that connects isolation mounting 14 and old pipeline 19 with pipeline 18.
Situation after the final isolation as shown in Figure 4, the connection diagram of 9SAR017BA compressed air cylinder 10 with female pipe 16 has been shown among Fig. 4, be connected with pipeline 17,18 and the second portion of old pipeline 19 on female pipe 16, pipeline 17,18 and the second portion of old pipeline 19 be connected with compressed air cylinder 10 as the first lateral, isolation mounting 14 is between pipeline 17 and pipeline 18.The first portion of old pipeline 19 is as the second lateral on female pipe 16, and its terminal sealed glue seals.During above-mentioned old pipeline 19 usefulness sealer shutoff, can be that leak stopping is pressed in pressure sealing or band temperate zone.
Above-mentioned pipeline thermal boring method is finished by a cover tapping equipment, sees also Fig. 5 to Fig. 9, and described tapping equipment comprises clamping device 100, guard mechanism 200 and borehole drill construction 300.
Described clamping device 100 is "T"-shaped, the first body 104 that it has clamping part 102 and is extended by clamping part 102 central vertical.Described clamping part 102 is straight tube-like, and its internal diameter matches with female pipe 16 external diameters, and during operation, clamping part 102 is wrapped in female pipe 16 peripheries.
Described guard mechanism 200 can be connected with the first body 104 of clamping device 100, the sideboard 204 that it has second body 202 that can be connected with the first body 104 and can move radially along the second body 202, baffle plate 204 is connected with a screw rod 206, by adjusting screw rod 206, can control baffle plate 204 and move radially along the second body 202, thereby block or open the second body 202.
Described borehole drill construction 300 can be connected with guard mechanism 200, and it has the 3rd body 302 and drill bit 304, the three bodys 302 can be connected with the second body 202 of guard mechanism 200, and drill bit 304 can move axially along the 3rd body 302 in the 3rd body 302.
The pipeline thermal boring method may further comprise the steps:
The clamping part 102 of clamping device 100 is mounted on female pipe 16, makes the mouth of pipe of the first body 104 over against the position of wanting perforate;
Guard mechanism 200 is mounted on the first body 104, makes the second body 202 and the first body 104 over against being communicated with;
Borehole drill construction 300 is mounted on the guard mechanism 200, makes the 3rd body 302 and the second body 202 over against being communicated with, thereby make the first body 104, the second body 202 and the 3rd body 302 common sealing channels that move for drill bits 304 that form;
Make drill bit 304 in above-mentioned sealing channel, manage 16 directions to mother and move (as shown in Figure 5), need the tubing 16 ' at perforate position to intercept (as shown in Figure 6) until mother managed on 16;
Thereafter, drill bit 304 moves (as shown in Figure 7) to the direction of managing 16 away from mother together with intercepting the tubing 16 ' that gets off, after drill bit 304 is through the second body 202, adjusting screw rod 206, baffle plate 204 is moved, until block the second body 202 (as shown in Figure 8) fully to the second body 202 directions;
At last, borehole drill construction 300 is disassembled, leave and take clamping device 100 and guard mechanism 200, namely finished female pipe 16 perforates (as shown in Figure 9).
When isolation mounting 14 is installed, isolation mounting 14 and new pipeline 17 are installed on the second body 202 of above-mentioned guard mechanism 200, adjusting screw rod 206 makes baffle plate 204 withdraw from the second body 202 and gets final product.Like this, when needing maintenance compressed air cylinder 10, close isolation mounting 14, make female pipe 16 and compressed air cylinder 10 disconnect and to carry out, and can not affect the normal operation of other pneumatic type valves 1.
In sum, above-mentioned SAR system has installed isolation mounting 14 online between compressed air cylinder 10 and compressed air gas source, isolate compressed air cylinder 10 by isolation mounting 14, thereby make the SAR system in the situation of not stopping transport, can overhaul compressed air cylinder 10.By the pipeline thermal boring method isolation mounting 14 is installed, thereby is made the SAR system in the situation of not stopping transport, can be implemented in line and install.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. instrument compressed air distribution system, has compressed air cylinder, described compressed air cylinder upstream is connected with compressed air gas source by an old pipeline, its downstream is connected with the pneumatic type valve, it is characterized in that: isolation mounting is installed between described compressed air cylinder upstream and the compressed air gas source online, described old pipeline disconnects first portion and the second portion that forms old pipeline, mother's pipe that described instrument is connected with compressed air gas source with the compressed air distribution system tool, the first portion of described old pipeline is connected with described female pipe, described instrument also is included in the situation that instrument do not stop transport with compressed air distribution system the pipeline that is installed on online the new pipeline on described female pipe by the pipeline thermal boring method and connects the second portion of described isolation mounting and described old pipeline with compressed air distribution system, described isolation mounting between described new pipeline and described pipeline, the end seal of the first portion of described old pipeline.
2. instrument compressed air distribution system as claimed in claim 1, it is characterized in that: described isolation mounting is separating valve.
3. instrument compressed air distribution system as claimed in claim 1, it is characterized in that: described instrument compressed air distribution system is nuclear power station SAR system, it has two compressed air cylinders of 9SAR017BA, 9SAR018BA, and described compressed air cylinder upstream is respectively arranged with described isolation mounting.
4. an instrument may further comprise the steps with the online partition method of the compressed air cylinder of compressed air distribution system:
In the situation that instrument is not stopped transport with compressed air distribution system, by the pipeline thermal boring method new pipeline and an isolation mounting are installed in series on female pipe;
Disconnect the original pipeline that connects female pipe and compressed air cylinder, with old pipeline block for mother manage the first portion that is connected and with the tank connected second portion of pressurized air;
The first portion of the described old pipeline of shutoff;
The second portion that connects described isolation mounting and old pipeline with pipeline.
5. instrument as claimed in claim 4 is characterized in that: with the old pipeline of sealer shutoff, be that leak stopping is pressed in pressure sealing or band temperate zone with the online partition method of the compressed air cylinder of compressed air distribution system.
6. instrument as claimed in claim 4 is with the online partition method of the compressed air cylinder of compressed air distribution system, it is characterized in that: described pipeline thermal boring method is finished by a cover tapping equipment, and described tapping equipment comprises clamping device, guard mechanism and borehole drill construction; The first body that described clamping device has clamping part and vertically extended by clamping part, described clamping part is straight tube-like, its internal diameter matches with female pipe external diameter; Described guard mechanism can be connected with the first body of clamping device, the sideboard that it has second body that can be connected with the first body and can move radially along the second body; Described borehole drill construction can be connected with guard mechanism, and it has the 3rd body and can be along the axially movable drill bit of the 3rd body in the 3rd body, and described the 3rd body can be connected with the second body of guard mechanism.
7. instrument as claimed in claim 6 is with the online partition method of the compressed air cylinder of compressed air distribution system, and it is characterized in that: described pipeline thermal boring method may further comprise the steps:
The clamping part of described clamping device is mounted on female pipe, makes the mouth of pipe of the first body over against the position of wanting perforate;
Described guard mechanism is mounted on the first body, makes the second body and the first body over against being communicated with;
Described borehole drill construction is mounted on the guard mechanism, makes the 3rd body and the second body over against being communicated with, thereby make the first body, the second body and the 3rd body jointly form the sealing channel that moves for drill bit;
Make drill bit in described sealing channel, manage direction to mother and move, until the tubing at female Guan Shangxu perforate position is intercepted;
Thereafter, drill bit moves to the direction away from female pipe together with intercepting the tubing that gets off, and after drill bit was through the second body, adjusting screw rod made baffle plate move to the second body direction, until block the second body fully;
At last, borehole drill construction is disassembled, leave and take clamping device and guard mechanism.
8. instrument as claimed in claim 7 is with the online partition method of the compressed air cylinder of compressed air distribution system, it is characterized in that: when isolation mounting is installed, isolation mounting and new pipeline are installed on the second body of described guard mechanism, and adjusting screw rod makes baffle plate withdraw from the second body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910188464 CN101725833B (en) | 2009-12-02 | 2009-12-02 | Compressed air distribution system for instrument and on-line isolation method for compressed air tank thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910188464 CN101725833B (en) | 2009-12-02 | 2009-12-02 | Compressed air distribution system for instrument and on-line isolation method for compressed air tank thereof |
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| CN101725833A CN101725833A (en) | 2010-06-09 |
| CN101725833B true CN101725833B (en) | 2013-03-06 |
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| CN101901007B (en) * | 2010-07-13 | 2012-07-11 | 山东电力研究院 | Compressed air measuring and controlling system and method for power plant instrument |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2254990Y (en) * | 1996-08-14 | 1997-05-28 | 程建设 | Safety fuel transferring device for range |
| EP1018329A2 (en) * | 1998-12-28 | 2000-07-12 | Nitto Kohki Co., Ltd. | Air massage system |
| CN2398232Y (en) * | 1999-12-03 | 2000-09-27 | 江苏正昌集团公司 | Discharging and ventilation device for silo grain |
| CN2821558Y (en) * | 2005-03-25 | 2006-09-27 | 杨政宇 | Pressure release valve test device for transformer |
-
2009
- 2009-12-02 CN CN 200910188464 patent/CN101725833B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2254990Y (en) * | 1996-08-14 | 1997-05-28 | 程建设 | Safety fuel transferring device for range |
| EP1018329A2 (en) * | 1998-12-28 | 2000-07-12 | Nitto Kohki Co., Ltd. | Air massage system |
| CN2398232Y (en) * | 1999-12-03 | 2000-09-27 | 江苏正昌集团公司 | Discharging and ventilation device for silo grain |
| CN2821558Y (en) * | 2005-03-25 | 2006-09-27 | 杨政宇 | Pressure release valve test device for transformer |
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| CN101725833A (en) | 2010-06-09 |
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Owner name: CHINA GENERAL NUCLEAR GROUP CO., LTD. Free format text: FORMER NAME: CHINA GUANGDONG NUCLEAR POWER GROUP CO., LTD. |
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Address after: Shenzhen science and technology building, No. 1001 Futian District Road, Shenzhen city in Guangdong province 518031 17-19 floor Patentee after: China General Nuclear Power Corporation Patentee after: Dayawan Nuclear Power Running Management Co., Ltd. Address before: Shenzhen science and technology building, No. 1001 Futian District Road, Shenzhen city in Guangdong province 518031 17-19 floor Patentee before: China Guangdong Nuclear Power Group Co., Ltd. Patentee before: Dayawan Nuclear Power Running Management Co., Ltd. |