CN102619786A - Structure for inner cylinder body of containment spray pump - Google Patents
Structure for inner cylinder body of containment spray pump Download PDFInfo
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- CN102619786A CN102619786A CN2012100832935A CN201210083293A CN102619786A CN 102619786 A CN102619786 A CN 102619786A CN 2012100832935 A CN2012100832935 A CN 2012100832935A CN 201210083293 A CN201210083293 A CN 201210083293A CN 102619786 A CN102619786 A CN 102619786A
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- spray pump
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- containment spray
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Abstract
The invention discloses a structure for the inner cylinder body of a containment spray pump used in the field of nuclear power equipment. The structure comprises a pump seat, a flow guide pipe, a water discharge section, a flow guide shell, a water absorption section and a suction pipe, wherein the pump seat, the flow guide pipe, the water discharge section, the flow guide shell, the water absorption section and the suction pipe are connected with each other in sequence from the top down; a suction taper pipe is arranged at the bottom of the water absorption section; a first upper flange and a first lower flange are arranged at the upper and the lower ends on the outer wall of the water absorption section respectively; a second upper flange and a second lower flange are arranged at the upper and the lower ends on the outer wall of the flow guide pipe respectively; a plurality of first rib plates connected with the first upper flange and the first lower flange are uniformly distributed at the periphery on the outer wall of the water discharge section; a plurality of second rib plates connected with the second upper flange and the second lower flange are uniformly distributed at the periphery on the outer wall of the flow guide tube; and the amount of the first rib plates are the same as that of the second rib plates, and is an even number. The structure has the technical effect that the natural vibration frequency of the containment spray pump is improved to meet the recommended standard of the natural vibration frequency of the containment spray pump.
Description
Technical field
The present invention relates to a kind of containment spray pump inner barrel structure that is used for nuclear power equipment field.
Background technique
Pressurized-water reactor nuclear power plant is the principal mode of present nuclear power station, and water is at the reactor core inner ebullition of pressurized water reactor, so water must keep high pressure conditions, comprises nuclear steam supply system, safety shower system and auxiliary system in this nuclear island.
Wherein containment spray system by two independently pipeline form.Every pipe-line system all is made up of equipment such as spray pump, cooler, shower nozzle, material-changing water tank, valves.Containment spray pump is to stop from the fission product of fuel and last one barrier of a loop radioactive material entering environment.When security incident took place, the water of HTHP flow in the containment in the loop, cause the temperature and pressure in the containment to raise, and containment spray pump spray cold water was that the water vapor condensation in the containment becomes water.Reduce the pressure and temperature in the containment.Contain boric acid in the spraying water simultaneously, to remove airborne radioiodine element.And when nuclear power plant system normally moved, the effect of said containment spray pump was; The water that changes in the nuclear power plant system in the water tank is injected in the containment, keep the balance of containment external and internal pressure, therefore when said nuclear power plant system normally moved, said containment spray pump can be called the low pressure safety injection pump again.
And when nuclear power plant system normally moved, the effect of said containment spray pump was; The water that changes in the nuclear power plant system in the water tank is injected in the containment, keep the balance of containment external and internal pressure, therefore when said nuclear power plant system normally moved, said containment spray pump can be called the low pressure safety injection pump again.
In order to guarantee effective processing of reactor fault, containment spray pump must keep certain natural frequency of vibration when operation.The proposed standard of this natural frequency of vibration is for being not less than 33Hz, and the natural frequency of vibration of containment spray pump generally has only 22-28Hz at present, can't guarantee effective processing of reactor accident.The natural frequency of vibration of containment spray pump and containment spray pump inner barrel structurally associated.
Summary of the invention
The objective of the invention is in order to overcome the deficiency of existing technology; A kind of raising containment spray pump inner barrel structure is provided; Natural frequency of vibration when it can improve the container spray pump work guarantees the safe operation of nuclear reactor, and helps effective disposal of nuclear reactor fault.
A kind of technological scheme that realizes above-mentioned purpose is: a kind of containment spray pump inner barrel structure comprises: the pump seat, honeycomb duct, the water exit end that connect successively from top to bottom, blower inlet casing and water absorbing section and suction pipe; Bottom, said water absorbing section is provided with the suction Taper Pipe, it is characterized in that:
The two ends up and down of the outer wall of said water exit end are provided with first upper flange and first lower flange respectively; The two ends up and down of the outer wall of said honeycomb duct are provided with second upper flange and second lower flange respectively, along the circumference uniform distribution of the outer wall of said water exit end first gusset of said first upper flange of some connections and said first lower flange; Along the circumference uniform distribution of said honeycomb duct outer wall second gusset of said second upper flange of some connections and said second lower flange, said first gusset is identical with the quantity of said second gusset, and is even number.
Further; Inner flange and outward flange are set on the said pump seat; Said inner flange is connected with said second upper flange; Said outward flange is connected with outer cylinder body 0, and along the said inner flange of the some connections of circumference uniform distribution of said pump seat and the 3rd gusset of said outward flange, the quantity of said the 3rd gusset is more than or equal to four even number.
Further, said water exit end inside is uniformly distributed with circumferential arrangement the 4th gusset along said water exit end, and the quantity of said the 4th gusset is more than or equal to four even number.
Further, on the said suction casing outer wall the 3rd upper flange is set, said first lower flange is connected with said the 3rd upper flange through strut.
Further, the bolt centre distance of said second upper flange and said second lower flange is 650mm.
Adopted the technological scheme of a kind of containment spray pump inner barrel structure of the present invention, promptly be uniformly distributed with the first muscle version, be uniformly distributed with second gusset, the technological scheme that the quantity of said first gusset and said second gusset equates along said honeycomb duct outer wall along said water exit end outer wall.Its technique effect is: the natural frequency of vibration of pacifying said containment spray pump improves, and has reached the proposed standard of the natural frequency of vibration of said containment spray pump, guarantees the safe operation of nuclear reactor, and helps effective disposal of nuclear reactor fault.
Description of drawings
Fig. 1 is the schematic representation of the inner barrel structure of a kind of containment spray pump of the present invention.
Embodiment
See also Fig. 1,, pass through embodiment particularly below, and combine accompanying drawing at length to explain in order to understand technological scheme of the present invention better:
See also Fig. 1, a kind of containment spray pump inner barrel structure of the present invention, said inner barrel structure is socketed in the outer cylinder body 10 of said containment spray pump, and socket is the pump shaft 100 of said containment spray pump in the said inner barrel structure.
Said inner barrel structure comprises pump seat 1, honeycomb duct 2, water exit end 3, blower inlet casing 4 and suction casing 5 and the suction pipe 6 that connects successively from top to bottom; Be provided with on the said suction pipe 6 and suck Taper Pipe 61, inner flange 11 and outward flange 12 are set on the said pump seat 1, the two ends up and down of the outer wall of said honeycomb duct 2 are provided with second flange 21 and second lower flange 22 respectively; The two ends up and down of the outer wall of said water exit end 3 are provided with first upper flange 31 and first lower flange 32 respectively; The 3rd upper flange 51 is set on the outer wall of said suction casing 5, and the bottom of said suction pipe 6 is provided with and sucks Taper Pipe 61.
Outward flange 12 is connected with flange on the said outer cylinder body 10 through bolt on the said pump seat 1; Second upper flange 21 on inner flange 11 on the said pump seat 1 and said honeycomb duct 2 outer walls is connected through bolt, thereby accomplishes being connected of said pump seat 1 and said honeycomb duct 2; First upper flange 31 on second lower flange 22 on said honeycomb duct 2 outer walls and said water exit end 3 outer walls is connected through bolt, thereby accomplishes being connected of said honeycomb duct 2 and said water exit end 3; Said blower inlet casing 4 is fixed on the bottom of said water exit end 3 through screw; Said suction casing 5 is fixed on the bottom of said blower inlet casing 4 through screw, and first lower flange 32 on said water exit end 3 outer walls is connected through strut 7 with the 3rd upper flange 41 on said suction casing 5 outer walls; First lower flange 32 on said water exit end 3 outer walls is connected through return pipe 8 with said suction pipe 6 with the 3rd upper flange 41 on said suction casing 5 outer walls, thereby accomplishes the installation of said containment spray pump inner barrel.The effect of said strut 7 and said return pipe 8 is the rigidity that strengthen said inner barrel.
On the said inner barrel; Along the circumference uniform distribution of said water exit end 3 outer walls eight first gussets 33 that connect said first upper flanges 31 and said first lower flange 32; On said honeycomb duct 2; Along the circumference uniform distribution of said honeycomb duct 2 eight second gussets 23 that connect said second upper flanges 21 and said two lower flanges 22, said first gusset 33 is one to one with said second gusset 23 positions.
Owing to be uniformly distributed with second upper flange 21 and second lower flange 22 on the outer wall of said honeycomb duct 2, first upper flange 31 and first lower flange 23 be set on the outer wall of said water exit end 3.Making the sectional shape of the outer wall of said water exit end 3 and said honeycomb duct 2 all is " worker " font; And increased said first gusset 33 on the outer wall of said water exit end 3; Increased said second gusset 23 on the outer wall of said honeycomb duct 2; Because increased said first gusset 33 and said second gusset 23, the natural frequency of vibration of said containment spray pump improves, and has reached the proposed standard of the natural frequency of vibration of said containment spray pump.
On said pump seat 1; Between said outward flange 12 and the said inner flange 11; Along the circumference uniform distribution of said pump seat 1 eight the 3rd gussets 13 that connect said inner flanges 11 and said outward flange 12, the quantity of said the 3rd gusset 13 of existing technology is four, the quantity of the 3rd gusset 13 described in the present embodiment is eight; Owing to increased the quantity of said the 3rd gusset 13, therefore the natural frequency of vibration of said containment spray pump also can further improve.
Inside at said water exit end 3; Be uniformly distributed with along some the 4th gussets 34 of the circumferential arrangement of said water exit end 3; The quantity of said the 4th gusset 34 of existing technology is four; The quantity of the 4th gusset 34 described in the present embodiment is eight, owing to increased the quantity of said the 4th gusset 34, therefore the natural frequency of vibration of said containment spray pump also can further improve.
What also have some mandatory declarations here is: what said first gusset 33 of equal number, said second gusset 23, said the 3rd gusset 13 and said the 4th gusset 34 were set can improve said containment spray pump mechanical stability.
In addition; The spiral shell heart of also having taked to increase said second upper flange 21 and said second lower flange 22 in the present embodiment improves the natural frequency of vibration of said containment spray pump apart from the technical measures of b; The spiral shell heart of second lower flange 22 and said second upper flange 21 is 580mm apart from b described in the existing technology; And the spiral shell heart of second upper flange 21 described in the present embodiment and said second lower flange 22 is 630mm apart from b; Correspondingly, the spiral shell heart of said first upper flange 31 and said first lower flange 32 and said inner flange 11 is apart from the also corresponding 630mm that increases to.Along with the increase of said second upper flange 21, said second lower flange 22, said first upper flange 31, said first lower flange 32 and said inner flange 11 spiral shell heart distances, the external diameter of said second upper flange 31, said second lower flange 22, said first upper flange 31, said first lower flange 32 and said inner flange 11 also increases thereupon.Meanwhile, the spiral shell heart of said outward flange 12 remains unchanged apart from a, still is 1000m, and the external diameter of said outward flange 12 also remains unchanged.
In the present embodiment; Through increasing said first gusset 33, said second gusset 23; Increase the quantity of the 3rd gusset 13, said the 4th gusset 34; And increase along with said second upper flange 21, said second lower flange 22, said first upper flange 31, said first lower flange 32 and technical measures such as said inner flange 11 spiral shell heart distances and external diameter; The natural frequency of vibration of said containment spray pump has been brought up to 35Hz, guarantees the safe operation of nuclear reactor, and helps effective disposal of nuclear reactor fault.
Those of ordinary skill in the art will be appreciated that; Above embodiment is used for explaining the present invention; And be not to be used as qualification of the present invention; As long as in connotation scope of the present invention, all will drop in claims scope of the present invention the above embodiment's variation, modification.
Claims (5)
1. a containment spray pump inner barrel structure comprises: the pump seat (1), honeycomb duct (2), the water exit end (3) that connect successively from top to bottom, blower inlet casing (4) and water absorbing section (5) and suction pipe (6); Bottom, said water absorbing section (6) is provided with and sucks Taper Pipe (61), it is characterized in that:
The two ends up and down of the outer wall of said water exit end (3) are provided with first upper flange (31) and first lower flange (32) respectively; The two ends up and down of the outer wall of said honeycomb duct (2) are provided with second upper flange (21) and second lower flange (22) respectively, along the circumference uniform distribution of the outer wall of said water exit end (3) first gusset (33) of said first upper flanges of some connections (31) and said first lower flange (32); Along the circumference uniform distribution of said honeycomb duct (2) outer wall second gusset (23) of said second upper flanges of some connections (21) and said second lower flange (22), said first gusset (33) is identical with the quantity of said second gusset (23), and is even number.
2. containment spray pump inner barrel structure according to claim 1; It is characterized in that: inner flange (11) and outward flange (12) are set on the said pump seat (1); Said inner flange (11) is connected with said second upper flange (21); Said outward flange (12) is connected with outer cylinder body (10), and along the said inner flanges of the some connections of circumference uniform distribution (11) and the 3rd gusset (13) of said outward flange (12) of said pump seat (1), the quantity of said the 3rd gusset (13) is more than or equal to four even number.
3. containment spray pump inner barrel structure according to claim 1 and 2 is characterized in that: said water exit end (3) inside is uniformly distributed with along circumferential arrangement the 4th gusset (34) of said water exit end (3), and the quantity of said the 4th gusset (34) is more than or equal to four even number.
4. containment spray pump inner barrel structure according to claim 1 and 2 is characterized in that: on said suction casing (5) outer wall the 3rd upper flange (51) is set, said first lower flange (32) is connected with said the 3rd upper flange (51) through strut (7).
5. containment spray pump inner barrel structure according to claim 1 and 2 is characterized in that: the bolt centre distance of said second upper flange (21) and said second lower flange (22) is 650mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100832935A CN102619786A (en) | 2012-03-27 | 2012-03-27 | Structure for inner cylinder body of containment spray pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100832935A CN102619786A (en) | 2012-03-27 | 2012-03-27 | Structure for inner cylinder body of containment spray pump |
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| Publication Number | Publication Date |
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| CN102619786A true CN102619786A (en) | 2012-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2012100832935A Pending CN102619786A (en) | 2012-03-27 | 2012-03-27 | Structure for inner cylinder body of containment spray pump |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013143451A1 (en) * | 2012-03-27 | 2013-10-03 | 上海阿波罗机械股份有限公司 | Spray pump for containment vessel |
| CN110578682A (en) * | 2018-06-07 | 2019-12-17 | 张家港中集圣达因低温装备有限公司 | Pump connecting device of low-temperature pump pool and low-temperature pump pool |
| CN110966225A (en) * | 2018-09-28 | 2020-04-07 | 株式会社日立产业机器 | Vertical shaft pump |
| CN110966205A (en) * | 2018-09-28 | 2020-04-07 | 株式会社日立产业机器 | Vertical shaft pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008111344A (en) * | 2006-10-30 | 2008-05-15 | Chugoku Electric Power Co Inc:The | Vertical shaft pump support structure |
| CN201827093U (en) * | 2010-06-12 | 2011-05-11 | 沈阳鼓风机集团有限公司 | Safety shell spraying pump for a nuclear power station |
| CN102116318A (en) * | 2010-12-30 | 2011-07-06 | 上海阿波罗机械股份有限公司 | Pump body structure on condensate pump for nuclear power station |
| CN201963607U (en) * | 2010-12-31 | 2011-09-07 | 山东长志泵业有限公司 | Vertical multi-stage barrel type containment spray pump |
| CN202597254U (en) * | 2012-03-27 | 2012-12-12 | 上海阿波罗机械股份有限公司 | Inner barrel body structure of containment spray pump |
-
2012
- 2012-03-27 CN CN2012100832935A patent/CN102619786A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008111344A (en) * | 2006-10-30 | 2008-05-15 | Chugoku Electric Power Co Inc:The | Vertical shaft pump support structure |
| CN201827093U (en) * | 2010-06-12 | 2011-05-11 | 沈阳鼓风机集团有限公司 | Safety shell spraying pump for a nuclear power station |
| CN102116318A (en) * | 2010-12-30 | 2011-07-06 | 上海阿波罗机械股份有限公司 | Pump body structure on condensate pump for nuclear power station |
| CN201963607U (en) * | 2010-12-31 | 2011-09-07 | 山东长志泵业有限公司 | Vertical multi-stage barrel type containment spray pump |
| CN202597254U (en) * | 2012-03-27 | 2012-12-12 | 上海阿波罗机械股份有限公司 | Inner barrel body structure of containment spray pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013143451A1 (en) * | 2012-03-27 | 2013-10-03 | 上海阿波罗机械股份有限公司 | Spray pump for containment vessel |
| CN110578682A (en) * | 2018-06-07 | 2019-12-17 | 张家港中集圣达因低温装备有限公司 | Pump connecting device of low-temperature pump pool and low-temperature pump pool |
| CN110966225A (en) * | 2018-09-28 | 2020-04-07 | 株式会社日立产业机器 | Vertical shaft pump |
| CN110966205A (en) * | 2018-09-28 | 2020-04-07 | 株式会社日立产业机器 | Vertical shaft pump |
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Application publication date: 20120801 |