CN203526153U - High-pressure flushing device of cooling water passageway fine rack of pressurized water reactor nuclear power plant - Google Patents
High-pressure flushing device of cooling water passageway fine rack of pressurized water reactor nuclear power plant Download PDFInfo
- Publication number
- CN203526153U CN203526153U CN201320647886.XU CN201320647886U CN203526153U CN 203526153 U CN203526153 U CN 203526153U CN 201320647886 U CN201320647886 U CN 201320647886U CN 203526153 U CN203526153 U CN 203526153U
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- foreign material
- fine fack
- pressure
- power plant
- nuclear power
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- 238000011010 flushing procedure Methods 0.000 title claims abstract description 25
- 239000000498 cooling water Substances 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims description 88
- 239000007921 spray Substances 0.000 claims description 48
- 238000005406 washing Methods 0.000 claims description 11
- 125000003003 spiro group Chemical group 0.000 claims description 9
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000010977 unit operation Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 208000035126 Facies Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
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- Cleaning By Liquid Or Steam (AREA)
Abstract
The utility model discloses a high-pressure flushing device of a cooling water passageway fine rack of a pressurized water reactor nuclear power plant. The flushing device comprises a sundry rake capable of moving up and down and used for removing sundries on the fine rack, and a high-pressure flushing mechanism arranged on the sundry rake to remove sundries on the fine rack. The high-pressure flushing device can be used for effectively removing sundries attached to the fine rack, and the fine rack sundry removing efficiency is improved.
Description
Technical field
The utility model relates to nuclear power generating equipment technical field, relates in particular to a kind of PWR nuclear power plant cooling water gateway fine fack high-pressure flushing device.
Background technology
The fine fack of PWR nuclear power plant cooling water gateway is the second barrier of nuclear power plant's circular water treating system, and its effect is for nuclear power plant provides clean low-temperature receiver together with rotary sieve.Fine fack is arranged on nuclear power plant's intake position, by coarse rack and extraneous lake marine facies, connects, and easily adsorbed water is biological, causes fine fack to stop up.
In prior art, by the foreign material that can walk up and down in the setting of fine fack top, harrowing to realize it cleans, as shown in Figure 1, fine fack 1 consists of some fine fack plates, between nuclear power plant's installation period, be arranged on the bottom, play filtration cycle water, in order to guarantee the cleaning of fine fack 1, conventionally the side being connected with the external world at fine fack 1 is provided with the foreign material rake 2 consisting of rake teeth 2b, rotating shaft and rake support 2a, this foreign material rake 2 is under the effect of drive motors 6 and driving gearbox 7, under the drive of steel wire rope 4, walk up and down, to remove the foreign material on fine fack 1.Adopt this cleaning mode, can only clean the foreign material of fine fack 1 one sides, cannot effectively clear up the foreign material of fine fack 1 opposite side.In actual application, stuck and cause foreign material rake 2 to sink to seabed with the crossbeam of fine fack 1 in running for fear of foreign material rake 2, its rake teeth 2b designed shorter when 2 design of foreign material rake and guarantee that rake teeth 2b stretches into the interior length of fine fack 1 and controls within the specific limits, thereby reduce foreign material and harrow 2 bite risks, but the functions that such design makes foreign material rake 2 remove foreign material are very limited, and fine fack 1 dorsad the foreign material of a side of foreign material rake 2 cannot effectively be removed.And fine fack 1 is arranged under water below 8 meters conventionally, water velocity is fast, is difficult to carry out manual intervention in nuclear power plant's unit running process, can only let alone to stop up aggravation.
In the running of nuclear power plant, if fine fack stops up, will reduce the circulation area of seawater, reduce the availability of nuclear power plant's low-temperature receiver, cause unit operation power to decline, especially when low tide, the obstruction of fine fack may cause nuclear power plant's low-temperature receiver to be not being met, thereby affects the safe operation of this nuclear power plant.In addition, when prior art center Power Plant run duration occurs that fine fack stops up, can only could clean fine fack by stoppage in transit water circulating pump, thereby cause the power of the assembling unit to decline.
Utility model content
The technical problems to be solved in the utility model is for utilizing foreign material rake cannot effectively remove the foreign material on fine fack in correlation technique, unit operation power is declined, even affect the deficiency of npp safety, a kind of PWR nuclear power plant cooling water gateway fine fack high-pressure flushing device that improves fine fack foreign material removal efficiency is provided.
The utility model solves the technical scheme that its technical problem adopts: a kind of PWR nuclear power plant cooling water gateway fine fack high-pressure flushing device, comprise moving up and down in order to remove the foreign material rake of the foreign material on fine fack, also comprise be arranged on described foreign material rake in order to remove the high pressure washing mechanism of the foreign material on fine fack.
Preferably, described high pressure washing mechanism comprises high-pressure spray gun, and described high-pressure spray gun is arranged on the rake support of described foreign material rake.
Preferably, described high-pressure spray gun is arranged on by movable carriage on the rake support of described foreign material rake, and described movable carriage can be along the rake support-moving of described foreign material rake.
Preferably, described movable carriage comprises upper component and the lower member of the rake support that is detachably attached to described foreign material rake of the rake support assorted of harrowing with described foreign material.
Preferably, described movable carriage can be fixed on the rake support of described foreign material rake by fixation kit.
Preferably, between described movable carriage and described high-pressure spray gun, be also provided with to adjust the bindiny mechanism of described high-pressure spray gun and fine fack distance.
Preferably, described bindiny mechanism comprises the guide spiro rod in order to adjustment and fine fack distance being connected with described lower member, the spray gun fixation kit in order to fixing described high-pressure spray gun being connected by connection bracket with described guide spiro rod.
Preferably, described spray gun fixation kit comprises the first semicircle clip and the second semicircle clip, and described the first semicircle clip is connected with described connection bracket, and described the first semicircle clip and described the second semicircle clip are fixed by screw and nut.
Preferably, the shower nozzle of described high-pressure spray gun is rotary nozzle.
Preferably, on described rotary nozzle, interval arranges several spray-holes.
The utility model compared with prior art tool has the following advantages: utilize fine fack high-pressure flushing device provided by the utility model, on foreign material rake, arrange in order to remove the high pressure washing mechanism of foreign material on fine fack, in order to remove the foreign material on fine fack that are attached to that cannot remove because foreign material rake and the fine fack depth of engagement are not enough, improve foreign material removal efficiency on fine fack, to avoid, because of fine fack congestion affects unit operation, realizing the utility model object.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the generalized section of foreign material rake in prior art.
Fig. 2 is the structural representation of fine fack high-pressure flushing device of the present utility model.
In figure: 1, fine fack; 2, foreign material rake; 2a, rake support; 2b, rake teeth; 3, high pressure washing mechanism; 4, steel wire rope; 5, reel; 6, drive motors; 7, driving gearbox; 8, high-pressure spray gun; 8a, rotary nozzle; 9, movable carriage; 9a, upper component; 9b, lower member; 10, guide spiro rod; 11, connection bracket; 12, spray gun fixation kit.
The specific embodiment
For technical characterictic of the present utility model, object and effect being had more clearly, understand, now contrast accompanying drawing and describe the specific embodiment of the present utility model in detail.
The utility model provides a kind of PWR nuclear power plant cooling water gateway fine fack high-pressure flushing device, comprise moving up and down in order to remove the foreign material rake 2 of the foreign material on fine fack, also comprise be arranged on foreign material rake 2 in order to remove the high pressure washing mechanism 3 of the foreign material on fine fack.Specifically, as shown in Figure 1, this foreign material rake 2 is connected to reel 5 by steel wire rope 4, this reel 5 is by being mainly connected with the driving mechanism that driving gearbox 7 forms by drive motors 6, utilize driving mechanism band movable reel 5 to rotate to realize the lifting of foreign material rake 2, the utility model Zhong Jiang high pressure washing mechanism 3 is arranged on foreign material rake 2, makes this high pressure washing mechanism 3 to harrow 2 with foreign material and moves up and down to remove the foreign material on fine fack 1, to improve the removal efficiency of foreign material on fine fack 1.More specifically, this foreign material rake 2 comprises the rake support 2a being connected with steel wire rope 4, on rake support 2a, is hinged with slusher, the other end of slusher is connected with rake teeth 2b, this rake teeth 2b is connected with control line, to realize the engagement between rake teeth 2b and fine fack 1, to remove the foreign material on fine fack 1.
Specifically, this high pressure washing mechanism 3 comprises high-pressure spray gun 8, high-pressure spray gun 8 is arranged on the rake support 2a of foreign material rake 2, be to be understood that, this high-pressure spray gun 8 is connected with high-pressure pump by tube connector, so that water under high pressure to be provided, by high-pressure spray gun 8, spray, utilize the impulsive force of water under high pressure to shoot down the foreign material that are attached on fine fack 1, improve foreign material removal efficiency on fine fack 1, to avoid because of the not enough safe operation that causes fine fack 1 to stop up and then affect unit of foreign material rake 2 and fine fack 1 depth of engagement.Understandable, the high-pressure pump that should be connected with high-pressure spray gun 8 can be placed on ground.
In specific implementation process, this high-pressure spray gun 8 is arranged on the rake support 2a of foreign material rake 2 by harrowing the movable carriage 9 that 2 rake support 2a moves along foreign material.More specifically, this movable carriage 9 comprises upper component 9a and the lower member 9b of the rake support 2a that is detachably attached to foreign material rake 2 coordinating with the rake support 2a of foreign material rake 2, understandable, this upper component 9a and lower member 9b can fix by screw or bolt.Utilize the movable carriage 9 on this rake support 2a that is installed to foreign material rake 2, can make high-pressure spray gun 8 harrow 2 rake support 2a direction along foreign material moves left and right, in view of this movable carriage 9 is arranged on the rake support 2a of foreign material rake 2 moving up and down, make the flushing scope of high-pressure spray gun 8 can cover the All Ranges on fine fack 1, to solve the bottom that makes operating personnel slip into the great fine fack of flow rate of water flow 1 region in prior art, clear up along with the foreign material on fine fack 1 (comprising marine growth etc.) exist great potential safety hazard.Understandable, this movable carriage 9 can also be fixed on the rake support 2a of foreign material rake 2 by fixation kit, and this fixation kit can screw or screw.
In specific implementation process, between this movable carriage 9 and high-pressure spray gun 8, be also provided with to adjust the bindiny mechanism of high-pressure spray gun 8 and fine fack 1 distance.More specifically, this bindiny mechanism comprise be connected with lower member 9b in order to adjust with the guide spiro rod 10 of fine fack 1 distance, be connected by connection bracket 11 with this guide spiro rod 10 in order to the fixing spray gun fixation kit 12 of high-pressure spray gun 8.Guide spiro rod 10 is provided with guide thread, connection bracket 11 is provided with nut, can be by the nut in adjustment connection bracket 11 to adjust the distance of connection bracket 11 and fine fack 1, realize moving forward and backward of link, spray gun fixation kit 12 is connected in connection bracket 11, and then realizes the distance of adjusting high-pressure spray gun 8 and fine fack 1.Spray gun fixation kit 12 comprises the first semicircle clip (not shown) and the second semicircle clip (not shown), the first semicircle clip is connected with connection bracket 11, the first semicircle clip and the second semicircle clip are fixed by screw and nut, in implementation process, the barral of a gun of high-pressure spray gun 8 is placed between the first semicircle clip and the second semicircle clip, by screw and nut, coordinate the barral of a gun that clamps this high-pressure spray gun 8, to realize the fixing of high-pressure spray gun 8.
When utilizing high-pressure spray gun 8 to spray to remove the foreign material on fine fack 1, because the outlet pressure of water under high pressure is high, after high-pressure spray gun 8 ejections, will spread, if now adopt the excessive spray-hole of bore, water under high pressure is pressure decay rapidly after ejection, does not reach developing result, therefore must adopt small-bore spray-hole, in practice, conventionally adopting bore is the spray-hole of 1mm.But while adopting small-bore spray-hole, because spray-hole is too little, the spray regime of the water under high pressure at every turn ejecting is limited, can not effectively remove the foreign material on fine fack 1.For this reason, in the utility model implementation process, adopt rotary nozzle 8a as the shower nozzle of high-pressure spray gun 8, on rotary nozzle 8a, compartment of terrain is provided with some spray-holes, in the present embodiment, adopt the spray-hole of 2 1mm, during this rotary nozzle 8a work, with respect to high-pressure spray gun 8, rotate, accordingly, spray-hole on rotary nozzle 8a forms the injection track of annular, its spray regime is expanded, when guaranteeing flushing pressure, improve the scope of cleaning, and then improve the elimination efficiency of fine fack 1 foreign material.More specifically, can make the spray-hole of two 1mm on rotary nozzle 8a and the axis shape of rotary nozzle 8a have a certain degree, as 30 °, in course of injection, rotation due to rotary nozzle 8a, make the water under high pressure of two spray-hole ejections form circular shape injection track, utilize the impulsive force of high pressure to shoot down along with the foreign material on fine fack 1.
Understandable, when foreign material rake 2 cannot use, also can be arranged on interim foreign material rake by movable carriage 9 Jiang Gai high pressure washing mechanisms 3, wherein, interim foreign material rake is the spare part that foreign material rake 2 uses while breaking down, and it is compared and lack rake teeth 2b with foreign material rake 2, and other structures are the same.
Utilize the course of work of fine fack high-pressure flushing device provided by the utility model as follows: the upper component 9a of movable carriage 9 to be placed on the rake support 2a of foreign material rake 2, use screw or bolt that the lower member 9b of this movable carriage 9 is connected with its upper component 9a, movable carriage 9 is fixed on the rake support 2a of foreign material rake 2.Guide spiro rod 10, connection bracket 11 and the first semicircle clip are installed successively, are used screw and nut to coordinate the second semicircle clip is fixed to the first semicircle clip, the fixing barral of a gun of high-pressure spray gun 8 between this first semicircle clip and the second semicircle clip.Adjust the position of this movable carriage 9 on the rake support 2a of foreign material rake 2, use screw or bolt to fix its position on the rake support 2a of foreign material rake 2, high-pressure spray gun 8 is connected with high-pressure pump by tube connector, start foreign material rake 2 and high-pressure pump to realize the cleaning to the foreign material on fine fack 1, at foreign material rake 2, complete and once move up and down after flow process, stop foreign material rake 2 and high-pressure pump, unclamp and movable carriage 9 is fixed to foreign material harrows screw or the bolt on 2 supports, again adjust the position of movable carriage 9 on the rake support 2a of foreign material rake 2, repeating correlation step to fine fack 1 Zone Full is washed into, to realize the cleaning to fine fack 1.
The utility model describes by several specific embodiments, it will be appreciated by those skilled in the art that, in the situation that not departing from the utility model scope, can also carry out various conversion and be equal to alternative the utility model.In addition, for particular condition or concrete condition, can make various modifications to the utility model, and not depart from scope of the present utility model.Therefore, the utility model is not limited to disclosed specific embodiment, and should comprise the whole embodiments that fall within the scope of the utility model claim.
Claims (10)
1. a PWR nuclear power plant cooling water gateway fine fack high-pressure flushing device, comprise moving up and downly in order to remove the foreign material rake (2) of the foreign material on fine fack (1), it is characterized in that: also comprise be arranged on described foreign material rakes (2) in order to remove the high pressure washing mechanism (3) of the foreign material on fine fack (1).
2. PWR nuclear power plant cooling water according to claim 1 gateway fine fack high-pressure flushing device, it is characterized in that: described high pressure washing mechanism (3) comprises high-pressure spray gun (8), described high-pressure spray gun (8) is arranged on the rake support (2a) of described foreign material rakes (2).
3. PWR nuclear power plant cooling water according to claim 2 gateway fine fack high-pressure flushing device, it is characterized in that: the rake support (2a) that described high-pressure spray gun (8) is arranged on described foreign material rakes (2) by movable carriage (9) is upper, described movable carriage (9) can be mobile along the rake support (2a) of described foreign material rakes (2).
4. PWR nuclear power plant cooling water according to claim 3 gateway fine fack high-pressure flushing device, is characterized in that: described movable carriage (9) comprises upper component (9a) and the lower member (9b) of the rake support (2a) that is detachably attached to described foreign material rakes (2) coordinating with the rake support (2a) of described foreign material rakes (2).
5. PWR nuclear power plant cooling water according to claim 4 gateway fine fack high-pressure flushing device, is characterized in that: described movable carriage (9) can be fixed on the rake support (2a) of described foreign material rakes (2) by fixation kit.
6. PWR nuclear power plant cooling water according to claim 4 gateway fine fack high-pressure flushing device, is characterized in that: the bindiny mechanism that is also provided with to adjust described high-pressure spray gun (8) and fine fack (1) distance between described movable carriage (9) and described high-pressure spray gun (8).
7. according to PWR nuclear power plant cooling water claimed in claim 6 gateway fine fack high-pressure flushing device, it is characterized in that: described bindiny mechanism comprises the guide spiro rod (10) in order to adjustment and fine fack (1) distance being connected with described lower member (9b), the spray gun fixation kit (12) in order to fixing described high-pressure spray gun (8) being connected by connection bracket (11) with described guide spiro rod (10).
8. PWR nuclear power plant cooling water according to claim 7 gateway fine fack high-pressure flushing device, it is characterized in that: described spray gun fixation kit (12) comprises the first semicircle clip and the second semicircle clip, described the first semicircle clip is connected with described connection bracket (11), and described the first semicircle clip and described the second semicircle clip are fixed by screw and nut.
9. PWR nuclear power plant cooling water according to claim 2 gateway fine fack high-pressure flushing device, is characterized in that: the shower nozzle of described high-pressure spray gun (8) is rotary nozzle (8a).
10. PWR nuclear power plant cooling water according to claim 9 gateway fine fack high-pressure flushing device, is characterized in that: the upper interval of described rotary nozzle (8a) arranges several spray-holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320647886.XU CN203526153U (en) | 2013-10-18 | 2013-10-18 | High-pressure flushing device of cooling water passageway fine rack of pressurized water reactor nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320647886.XU CN203526153U (en) | 2013-10-18 | 2013-10-18 | High-pressure flushing device of cooling water passageway fine rack of pressurized water reactor nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203526153U true CN203526153U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320647886.XU Expired - Lifetime CN203526153U (en) | 2013-10-18 | 2013-10-18 | High-pressure flushing device of cooling water passageway fine rack of pressurized water reactor nuclear power plant |
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| Country | Link |
|---|---|
| CN (1) | CN203526153U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478403A (en) * | 2015-12-16 | 2016-04-13 | 江苏杜氏环保科技有限公司 | Inwards-rotating type high-pressure grating flushing device |
| CN107117768A (en) * | 2017-04-19 | 2017-09-01 | 环境保护部华南环境科学研究所 | A kind of municipal wastewater advanced treating and online reclamation set |
| CN110841962A (en) * | 2019-11-19 | 2020-02-28 | 中船重工(重庆)西南装备研究院有限公司 | Thin grid sundry cleaning robot |
-
2013
- 2013-10-18 CN CN201320647886.XU patent/CN203526153U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478403A (en) * | 2015-12-16 | 2016-04-13 | 江苏杜氏环保科技有限公司 | Inwards-rotating type high-pressure grating flushing device |
| CN107117768A (en) * | 2017-04-19 | 2017-09-01 | 环境保护部华南环境科学研究所 | A kind of municipal wastewater advanced treating and online reclamation set |
| CN110841962A (en) * | 2019-11-19 | 2020-02-28 | 中船重工(重庆)西南装备研究院有限公司 | Thin grid sundry cleaning robot |
| CN110841962B (en) * | 2019-11-19 | 2021-05-28 | 中船重工(重庆)西南装备研究院有限公司 | Thin grid sundry cleaning robot |
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| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |
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| CX01 | Expiry of patent term |