CN204881238U - Blind plate power remove device of nuclear power plant's condenser - Google Patents
Blind plate power remove device of nuclear power plant's condenser Download PDFInfo
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- CN204881238U CN204881238U CN201520357516.1U CN201520357516U CN204881238U CN 204881238 U CN204881238 U CN 204881238U CN 201520357516 U CN201520357516 U CN 201520357516U CN 204881238 U CN204881238 U CN 204881238U
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- expansion joint
- condenser
- flange
- power plant
- nuclear power
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Abstract
The utility model discloses a blind plate power remove device of nuclear power plant's condenser, the condenser includes the casing, be equipped with the multiunit tube bank in the casing, every group the both ends of tube bank respectively are equipped with a hydroecium, be connected with the pipeline that supplies recirculated cooling water to flow through on the hydroecium, be equipped with the platform of two relative settings on the pipeline respectively, two be connected with the expansion joint on the platform respectively, two through first pull rod fixed connection between the expansion joint, and two recirculated cooling water's the flow direction is opposite in the expansion joint to it is used in two respectively to make blind plate power cancel each other out on the expansion joint. The beneficial effect of the utility model: through set up two expansion joints on the pipeline, just two interior recirculated cooling water's of expansion joint the flow direction is opposite for be used in two blind plates power cancel each other out on the expansion joint respectively, thereby make on blind plate power is not used in the pipeline, can effectively protect the condenser not by jack -up.
Description
Technical field
The utility model relates to solidifying gas heat-exchanger rig, particularly relates to the blind flange force cancellation element of a kind of nuclear power plant condenser.
Background technology
A kind of surface heat exchanger on nuclear power plant's condenser, condenser shell receives the exhaust of turbine low pressure cylinder, steam by-pass exhaust system or secondary circuit other system, circulating cooling seawater flows through in bank of condenser pipes, with the steam outside condensation bank of condenser pipes, make it to be condensed into water and assemble in hot trap.Tube bank two ends often organized by nuclear power plant's condenser a hydroecium, and two hydroeciums are connected with outlet with the inlet tube of recirculated water respectively by expansion joint.
Condenser is extracted incondensable gas acting in conjunction continuously out by condensation exhaust and condenser vacuum system and is maintained back pressure needed for turbine low pressure cylinder, in order to ensure turbine low pressure cylinder and condenser under operating condition because thermal expansion and the relative position change that vacuumizes and cause can not affect the center of steam-electric generating set shafting, therefore turbine low pressure cylinder and condenser generally adopt and are rigidly connected, and condenser adopts elastic foundation.When having relative displacement between steam turbine low pressure cylinder and condenser air inlet, the elastic foundation of condenser can compensate the thermal walking of condenser itself, and the thermal walking of condenser itself is then compensated by the expansion joint on circulating water pipeline.
After circulating water pipeline having installed expansion joint additional, pipeline section is long-pending have been increased, and body inner fluid produces internal pressure thrust to inner-walls of duct, and this internal pressure thrust is blind flange force.Nuclear power plant's condenser is in the startup of circulating water pipeline system and dead electricity restarting process, the blind flange force acted on the expansion joint of the thermal walking in order to absorb condenser can increase suddenly, cause the power acted on condenser can become large instantaneously, condenser is existed by the danger of jack-up, and then destroys whole Turbo-generator Set.
Utility model content
The technical problems to be solved in the utility model is, for above-mentioned defect of the prior art, provides a kind of nuclear power plant condenser.
The utility model solves the technical scheme that its technical problem adopts:
The blind flange force cancellation element of a kind of nuclear power plant condenser is provided, described condenser comprises housing, multi units tube bundle is provided with in described housing, the two ends often organizing described tube bank are provided with a hydroecium, described hydroecium is connected with the pipeline flow through for recirculated cooling water, described pipeline is respectively equipped with two platforms be oppositely arranged, two described platforms are connected to expansion joint, be fixedly connected with by the first pull bar between two described expansion joints, and the flow direction of two described expansion joint Inner eycle cooling waters is contrary, cancel out each other to make the blind flange force acted on respectively on two described expansion joints.
In the blind flange force cancellation element of nuclear power plant described in the utility model condenser, described expansion joint is rubber expansion joint.
In the blind flange force cancellation element of nuclear power plant described in the utility model condenser, described platform comprises the first platform and the second platform that center line overlaps, described pipeline comprises the elbow pipeline that one end is connected with described hydroecium, and one end is connected to the tube connector extended on described elbow pipeline and along the center line of described first platform; The other end of described elbow pipeline is connected with described first platform, and the other end of described tube connector is connected with described second platform.
In the blind flange force cancellation element of nuclear power plant described in the utility model condenser, described elbow pipeline is between described first platform and described second platform.
In the blind flange force cancellation element of nuclear power plant described in the utility model condenser, described expansion joint comprises the expansion joint body be connected with described plateau elastic, the centre of described expansion joint body is formed with buffer part, the two ends of described expansion joint body are respectively arranged with the first annular flange flange and the second annular flange flange, described first annular flange flange is fixed with the first flange between described first annular flange flange and described buffer part, described second annular flange flange is fixed with the second flange between described second annular flange flange and described buffer part.
In the blind flange force cancellation element of nuclear power plant described in the utility model condenser, described expansion joint body is fixedly connected with the second flange with described first flange respectively by bonding mode.
In the blind flange force cancellation element of nuclear power plant described in the utility model condenser, described expansion joint body comprises rubber layer, and is positioned at the packed layer of described rubber layer, and described packed layer is made up of fiber, steel band, steel wire or cord fabric.
In the blind flange force cancellation element of nuclear power plant described in the utility model condenser, described expansion joint body is provided with the second pull bar for supporting described expansion joint body.
In the blind flange force cancellation element of nuclear power plant described in the utility model condenser, the peripheral side at described expansion joint two ends intermarginal separating is provided with multiple installing hole for being connected with described platform.
In the blind flange force cancellation element of nuclear power plant described in the utility model condenser, described first pull bar comprises multiple, and multiple described first pull bar mutually uniform interval is fixed between two described expansion joints.
To sum up; implement the blind flange force cancellation element of nuclear power plant of the present utility model condenser; there is following beneficial effect: by arranging two expansion joints on pipeline; and the flow direction of two expansion joint Inner eycle cooling waters is contrary; the blind flange force acted on respectively on two expansion joints is cancelled out each other; thus blind flange force is not acted on pipeline, can available protecting condenser not by jack-up.And be fixedly connected with by the first pull bar between two expansion joints, the blind flange force acted on respectively on two expansion joints can be born by the first pull bar, thus be guaranteed the safe operation of nuclear power plant's condenser in circulation transient process.
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 structural representation of the blind flange force cancellation element of a kind of nuclear power plant condenser that one of the utility model preferred embodiment provides;
Fig. 2 is the partial sectional view of the expansion joint of the blind flange force cancellation element of the condenser of nuclear power plant shown in Fig. 1.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 and Fig. 2 shows the blind flange force cancellation element of a kind of nuclear power plant condenser that one of the application's preferred embodiment provides, as shown in Figure 1, this condenser comprises housing 1, multi units tube bundle is provided with in housing 1, the two ends often organizing tube bank are provided with a hydroecium 2, hydroecium 2 is connected with the pipeline 3 flow through for recirculated cooling water, pipeline 3 is respectively equipped with two platforms be oppositely arranged, two described platforms are connected to expansion joint 5, be fixedly connected with by the first pull bar 6 between two expansion joints 5, and the flow direction of two expansion joint 5 Inner eycle cooling waters is contrary, cancel out each other to make the blind flange force acted on respectively on two expansion joints 5.
Because the flow of nuclear power plant's circulating water pipeline system is large, pipe diameter is large, starts and can produce very large blind flange force instantaneously under restarting operating mode, cause the power acted on condenser to become large instantaneously in system, and condenser is existed by the danger of jack-up.The present embodiment by arranging two expansion joints 5 on pipeline 3; and the flow direction of two expansion joint 5 Inner eycle cooling waters is contrary; the blind flange force acted on respectively on two expansion joints 5 is cancelled out each other, thus makes blind flange force not act on pipeline 3, can available protecting condenser not by jack-up.
Preferably, be fixedly connected with between two expansion joints 5 by the first pull bar 6, the blind flange force acted on respectively on two expansion joints 5 can be born by the first pull bar 6, thus be guaranteed the safe operation of nuclear power plant's condenser in circulation transient process.
As shown in Figure 1, described platform comprises the first platform 41 and the second platform 42 that center line overlaps, and the first platform 41 and the second platform 42 are parallel to each other, and two expansion joints 5 are arranged on the first platform 41 and the second platform 42 respectively.
Pipeline 3 comprises elbow pipeline 31, tube connector 32 and vertical pipe 33, and it is mainly used in flowing through for recirculated cooling water, enters hydroecium 2 or discharge in hydroecium 2 to make recirculated cooling water.Wherein, one end of elbow pipeline 31 is connected on hydroecium 2, and the other end of elbow pipeline 31 is provided with the first platform 41, and expansion joint 5 is connected on this first platform 41, and one end of vertical pipe 33 is connected on expansion joint 5, and be connected with elbow pipeline 31 by expansion joint 5.One end of tube connector 32 is connected on elbow pipeline 31, and extend along the center line of the first platform 41, second platform 42 is arranged on the other end of tube connector 32, and the second platform 42 is connected with expansion joint 5, and elbow pipeline 31 is between the first platform 41 and the second platform 42.
Because the center line of the first platform 41 and the second platform 42 overlaps, the flow direction of two expansion joint 5 Inner eycle cooling waters is just the opposite, make the direction acting on the blind flange force between two expansion joints 5 in recirculated cooling water transient process respectively contrary, therefore can cancel out each other.
Further, because elbow pipeline 31 is between the first platform 41 and the second platform 42, blind flange force need not act directly on elbow pipeline 31, can available protecting condenser not by jack-up.
Further, be connected with the first pull bar 6 between two expansion joints 5, the blind flange force acted on respectively on two expansion joints 5 can be born by the first pull bar 6, thus be guaranteed the safe operation of nuclear power plant's condenser in circulation transient process.Preferably, in the present embodiment, the first pull bar 6 comprises multiple, and multiple first pull bar 6 is mutually spaced apart uniformly, and is fixedly connected with around the periphery of two expansion joints 5, to strengthen the ability that the first pull bar 6 bears blind flange force.
As shown in Figure 2, expansion joint 5 comprises the expansion joint body 51 be connected with described plateau elastic, the centre of expansion joint body 51 is formed with buffer part 52, the two ends of expansion joint body 51 are respectively arranged with the first annular flange flange 53 and the second annular flange flange 54, first annular flange flange 53 is fixed with the second flange 56 the first flange 55, second annular flange flange 54 between the first annular flange flange 53 and buffer part 52 is fixed with between the second annular flange flange 54 and buffer part 52.
Preferably, the periphery of the first annular flange flange 53 and the first flange 55 is spaced apart is provided with multiple installing hole 58, be fixedly connected with the first platform 41 to make expansion joint 5, the periphery of the second annular flange flange 54 and the second flange 56 is also spaced apart is provided with multiple installing hole 58, is fixedly connected with the second platform 42 to make expansion joint 5.
In the present embodiment, expansion joint 5 is rubber expansion joint, and this rubber expansion joint forms with flange by having flexible expansion joint main body 51.This expansion joint main body 51 comprises the rubber layer 511 being positioned at its surface, and is positioned at the packed layer 512 of described rubber layer 511, the interlayer that this packed layer 512 can be strengthened for several layers of strong fiber or steel band (silk).Reinforcing fibre or steel band (silk) etc. are strengthened interlayer and are extended in the annular flange flange at the two ends of expansion joint main body 51, make, in the first annular flange flange 53 and the second annular flange flange 54, there is hard wire skeleton, and rubber layer 511 has the features such as high pressure resistant and good springiness, thus increase the displacement compensation capability of rubber expansion joint, improve the vibration-absorbing denoising effect of condenser.
In the present embodiment, expansion joint main body 51 is fixedly connected with the second flange 56 with the first flange 55 respectively by bonding mode.When blind flange force acts on expansion joint 5, blind flange force effectively can be passed to flange stationary plane by expansion joint main body 51, the weak part without pressure-bearing is made to form overall pressure-bearing, and the vibration that extraction duct 3 is transmitted, to adapt to the axial and horizontal displacement of condenser, the alternately change of the malleation that simultaneous adaptation fluid brings or negative pressure and positive/negative-pressure, and be unlikely to make rubber expansion joint produce gross distortion and glue-line comes off.
Further, shown in composition graphs 1, expansion joint 5 is provided with multiple the second pull bar 57 for supporting described expansion joint body 51, and multiple second pull bar 57 flexibly connects with expansion joint body 51, under the effect of blind flange force, deformation occurs to avoid expansion joint 5.
To sum up, implement the blind flange force cancellation element of nuclear power plant of the present utility model condenser, there is following beneficial effect:
(1) by arranging two expansion joints on pipeline; and the flow direction of two expansion joint Inner eycle cooling waters is contrary; the blind flange force acted on respectively on two expansion joints is cancelled out each other, thus blind flange force is not acted on pipeline, can available protecting condenser not by jack-up.
Be fixedly connected with by the first pull bar between (2) two expansion joints, the blind flange force acted on respectively on two expansion joints can be born by the first pull bar, thus be guaranteed the safe operation of nuclear power plant's condenser in circulation transient process.
Although the utility model is described by specific embodiment, it will be appreciated by those skilled in the art that, when not departing from the utility model scope, various conversion can also be carried out and be equal to substituting to the utility model.In addition, for particular condition or material, various amendment can be made 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 fallen in the utility model right.
Claims (10)
1. the blind flange force cancellation element of nuclear power plant's condenser, it is characterized in that, described condenser comprises housing (1), described housing is provided with multi units tube bundle in (1), the two ends often organizing described tube bank are provided with a hydroecium (2), described hydroecium (2) is connected with the pipeline (3) flow through for recirculated cooling water, it is characterized in that, described pipeline (3) is respectively equipped with two platforms be oppositely arranged, two described platforms are connected to expansion joint (5), be fixedly connected with by the first pull bar (6) between two described expansion joints (5), and the flow direction of two described expansion joint (5) Inner eycle cooling waters is contrary, cancel out each other to make the blind flange force acted on respectively on two described expansion joints (5).
2. the blind flange force cancellation element of nuclear power plant according to claim 1 condenser, is characterized in that, described expansion joint (5) is rubber expansion joint.
3. the blind flange force cancellation element of nuclear power plant according to claim 1 condenser, it is characterized in that, described platform comprises the first platform (41) and the second platform (42) that center line overlaps, described pipeline (3) comprises the elbow pipeline (31) that one end is connected with described hydroecium (2), and one end is connected to the tube connector (32) extended on described elbow pipeline (31) and along the center line of described first platform (41); The other end of described elbow pipeline (32) is connected with described first platform (41), and the other end of described tube connector (32) is connected with described second platform (42).
4. the blind flange force cancellation element of nuclear power plant according to claim 3 condenser, is characterized in that, described elbow pipeline (31) is positioned between described first platform (41) and described second platform (42).
5. the blind flange force cancellation element of nuclear power plant according to claim 1 condenser, it is characterized in that, described expansion joint (5) comprises the expansion joint body (51) be connected with described plateau elastic, the centre of described expansion joint body (51) is formed with buffer part (52), the two ends of described expansion joint body (51) are respectively arranged with the first annular flange flange (53) and the second annular flange flange (54), described first annular flange flange (53) is fixed with the first flange (55) be positioned between described first annular flange flange (53) and described buffer part (52), described second annular flange flange (54) is fixed with the second flange (56) be positioned between described second annular flange flange (54) and described buffer part (52).
6. the blind flange force cancellation element of nuclear power plant according to claim 5 condenser, it is characterized in that, described expansion joint body (51) is fixedly connected with the second flange (56) with described first flange (55) respectively by bonding mode.
7. the blind flange force cancellation element of nuclear power plant according to claim 5 condenser, it is characterized in that, described expansion joint body (51) comprises rubber layer (511), and being positioned at the packed layer (512) of described rubber layer (511), described packed layer (512) is made up of fiber, steel band, steel wire or cord fabric.
8. the blind flange force cancellation element of nuclear power plant according to claim 5 condenser, is characterized in that, described expansion joint body (51) is provided with the second pull bar (57) for supporting described expansion joint body (51).
9. the blind flange force cancellation element of nuclear power plant according to claim 1 condenser, is characterized in that, the peripheral side at described expansion joint (5) two ends intermarginal separating is provided with multiple installing hole (58) for being connected with described platform.
10. the blind flange force cancellation element of nuclear power plant according to claim 1 condenser, it is characterized in that, described first pull bar (6) comprises multiple, and multiple described first pull bar (6) mutually uniform interval is fixed between two described expansion joints (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520357516.1U CN204881238U (en) | 2015-05-28 | 2015-05-28 | Blind plate power remove device of nuclear power plant's condenser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520357516.1U CN204881238U (en) | 2015-05-28 | 2015-05-28 | Blind plate power remove device of nuclear power plant's condenser |
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| CN204881238U true CN204881238U (en) | 2015-12-16 |
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| CN201520357516.1U Active CN204881238U (en) | 2015-05-28 | 2015-05-28 | Blind plate power remove device of nuclear power plant's condenser |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186290A (en) * | 2019-05-29 | 2019-08-30 | 华电宁夏灵武发电有限公司 | Direct air cooling system condensed water down-comer buffer unit |
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2015
- 2015-05-28 CN CN201520357516.1U patent/CN204881238U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186290A (en) * | 2019-05-29 | 2019-08-30 | 华电宁夏灵武发电有限公司 | Direct air cooling system condensed water down-comer buffer unit |
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