CN209624087U - Steam generator analogue body experimental rig - Google Patents
Steam generator analogue body experimental rig Download PDFInfo
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- CN209624087U CN209624087U CN201920538154.4U CN201920538154U CN209624087U CN 209624087 U CN209624087 U CN 209624087U CN 201920538154 U CN201920538154 U CN 201920538154U CN 209624087 U CN209624087 U CN 209624087U
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- cover board
- steam generator
- seal cover
- hole
- thermocouple
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Abstract
The utility model discloses steam generator analogue body experimental rigs, including test stand and the simulation cavity being fixed on above test stand, the simulation cavity hatch are provided with seal cover board, U-shaped heat-transfer pipe is fitted on the seal cover board, cold source case is provided at the top of the seal cover board, partition is provided among the simulation cavity, the simulation cavity is divided into inlet plenum and outlet chamber by the partition, the inlet plenum and outlet chamber two sides are respectively arranged with inlet and outlet pipes, the inlet and outlet cavity bottom is respectively arranged with cable interface, a fixed bracket is respectively arranged in the disengaging oral chamber, the thermocouple for testing U-shaped heat-transfer pipe out temperature is provided on the fixed bracket, the thermocouple is connected with temperature measurer by the cable interface.By the way that fixed bracket is respectively set in disengaging oral chamber, preferably thermocouple can be fixed, the entrance end for facilitating thermocouple to extend into U-shaped heat-transfer pipe carries out thermometric.
Description
Technical field
The utility model relates to nuclear engineering technical fields, and in particular to a kind of steam generator analogue body experimental rig.
Background technique
In pressurized-water reactor nuclear power plant, steam generator is one of the three big equipment in nuclear island, is connection primary Ioops system, two
The hinge of circuit system.
Primary Ioops system include at least reactor pressure vessel, steam generator and be connected between the two main pipeline heat
Section, cold section of main pipeline, cold section of main pipeline is additionally provided with main pump.Reactor core is given because of the huge energy heats that fuel fission generates
The thermal energy that reactor core generates is taken out of reactor pressure vessel and enters steam generator by the water supply of water, high temperature and pressure, when
When water supply passes through steam generator, the secondary circuit water supply outside pipe is imparted heat to by thousands of heat-transfer pipes, discharges heat
Water supply afterwards sends reactor pressure vessel back to by main pump again, and water supply constantly recycles in closed primary Ioops.
In secondary circuit side, the water supply of secondary circuit enters water supply endless tube by the feed-water intake of steam generator, by giving water ring
One group of inverted-loop tube on pipe enter lower shell and restrain sleeve between annulus (i.e. decline passway), flow downward until
Bottom tube sheet, then turns to, and (i.e. rising passway) flows up outside the pipe of inverted U tube bank, one flowed in heat-transfer pipe
Circuit water supply heating, steam water interface, which leaves inverted U tube bundle top, to be continued to rise, and is sequentially entered Spiralism type steam-water separator and is done
After dry device carries out steam-water separation, steam flows to steam turbine acting from the top exit of steam generator, and the water separated is then past
It is recycled after being mixed with water supply down.
U-shaped heating surface bank in steam generator is to take primary Ioops heat out of, and steam generator secondary side water supply is become
The power of Natural Circulation inside the energy transmission medium and steam generator of steam, changes U-shaped heating surface bank out temperature
Condition monitoring is even more most important, because it is related to the safe operation of reactor.And actual steam generator volume is larger, environment
Complexity, radiation risk is big, cannot be directly on actual steam generator to the measuring study of U-shaped heating surface bank out temperature
It carries out, and due to including the U-shaped heating surface bank of numerous numbers (thousands of) in steam generator, makes the steam hair of actual ratio
The research that raw device carries out its operation characteristic is relatively difficult.
Therefore, in test, it is necessary to ratio modelling be carried out to actual steam generator, establish fewer number of U-tube
Steam generator analogue body is a new direction for studying steam generator operation characteristic.
Summary of the invention
The purpose of this utility model is to provide steam generator analogue body experimental rigs, pass through ratio modelling contrived experiment
Section steam generator, design U-tube beam out temperature measures thermocouple support, for fixing disengaging of the thermocouple to U-tube
Mouth temperature measures, and is surveyed with solving to carry out U-shaped heating surface bank out temperature on actual steam generator in background technique
Quantity research difficult problem.
To achieve the above object, the utility model provides the following technical solutions:
Steam generator analogue body experimental rig, including test stand and the simulation cavity being fixed on above test stand, institute
State the circular cylindrical cavity portion that simulation cavity includes hemispherical cavity portion and is connected with hemispherical cavity portion opening, institute
It states circular cylindrical cavity portion opening and is provided with seal cover board, the seal cover board passes through bolt with the circular cylindrical cavity portion and connects
It connects, cold source case is provided at the top of the seal cover board, it is described to simulate among the closed chamber that cavity and the seal cover board are formed
It is provided with partition, the closed chamber is divided into inlet plenum and outlet chamber, the inlet plenum and outlet by the partition
Chamber two sides are respectively arranged with the first water inlet line and the first outlet conduit, the inlet plenum and two side bottom of outlet chamber point
It is not provided with cable interface, a fixed bracket, the fixed bracket packet are respectively arranged in the inlet plenum and outlet chamber
Three fixed columns are included, one end of the fixed column is detachably connected the seal cover board, and the other end of the fixed column is fixed to be connected
It is connected to set square, several first holes are uniformly distributed on the set square, several first hole vertical directions are corresponding close
It is provided with the second hole on capping plate, inverted U heat-transfer pipe is fitted in second hole, is provided on first hole
Thermocouple, one end of the thermocouple are protruded into the straight tube of the inverted U heat-transfer pipe, and the other end is connected with conducting wire, the conducting wire
Temperature measurer is connected with by the cable interface.
Further, third hole is additionally provided on the set square, it is straight that the third hole diameter is greater than the first hole
Diameter.
Further, the fixed bracket is stainless steel material.
Further, first pore quantity is at least 10.
Further, two sides are respectively arranged with the second water inlet line and the second outlet conduit in the cold source case.
Further, seal washer is provided between the seal cover board and the circular cylindrical cavity portion opening face.
Compared with the existing technology, the beneficial effects of the utility model are:
1, by the way that fixed bracket is respectively set in inlet plenum and outlet chamber, preferably thermocouple can be consolidated
It is fixed, facilitate thermocouple to extend into the entrance end of U-shaped heat-transfer pipe, temperature measurer is connected by thermocouple and carries out thermometric.
2, the cavity dimension of steam generator analogue body and inner part structure as involved in the utility model are and existing
Field device ensure that the authenticity of verification experimental verification by scale smaller.
3, multiple the first holes for inserting thermocouple are set on fixed frame, the U-shaped heat-transfer pipe disengaging of multiple groups can be measured
The temperature at mouthful end, is statisticallyd analyze by multiple groups temperature data, the out temperature for measuring U-tube that can be more accurate.
4, multiple third holes are set on fixed frame, so that inlet plenum and the indoor water of outlet plenum are in U-shaped heat-transfer pipe
In beam when circulation, as fluid channel, fluid resistance is reduced, reduction has an impact the flowing in steam generator.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the utility model section plan；
Fig. 3 is the utility model partial structurtes axonometric drawing -01；
Fig. 4 is the utility model partial structurtes shaft side figure -02；
Fig. 5 is the utility model fixing rack structure figure；
In figure: test stand 1, simulation cavity 2, hemispherical cavity portion 21, circular cylindrical cavity portion 22, seal cover board 3, the second hole
Hole 31, seal washer 32, bolt 4, cold source case 5, partition 6, inlet plenum 7, outlet chamber 8, the first water inlet line 9, first go out
Waterpipe 10, U-shaped heat-transfer pipe 11, cable interface 12, fixed bracket 13, fixed column 131, set square 132, the first hole 133, the
Three holes 134, thermocouple 14, conducting wire 15, temperature measurer 16.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and specifically
Embodiment, the present invention will be further described in detail.It should be appreciated that the specific embodiments described herein are only used
To explain the utility model, it is not used to limit the utility model.
Referring to shown in attached drawing 1-5, steam generator analogue body experimental rig, including test stand 1 and it is fixed on test stand 1
The simulation cavity 2 of top, the simulation cavity 2 include hemispherical cavity portion 21 and with 21 opening of hemispherical cavity portion
The circular cylindrical cavity portion 22 being connected, 22 opening of circular cylindrical cavity portion are provided with seal cover board 3, the seal cover board 3
It is connect with the circular cylindrical cavity 22 by bolt 4, cold source case 5, cold source case 5 and institute is provided at the top of the seal cover board 3
It states 3 upper surface of seal cover board and forms closed cavity, two sides are respectively arranged with the second water inlet line 51 and second in the cold source case 5
Outlet conduit 52, the second water inlet line 51 is used to inject room temperature or cold water into cold source case 5, and passes through 52 row of the second outlet conduit
Out, partition 6 is provided among the closed chamber that the simulation cavity 2 and the seal cover board 3 are formed, the partition 6 will be described
Closed chamber is divided into inlet plenum 7 and outlet chamber 8, and the inlet plenum 7 and 8 two sides of outlet chamber are respectively arranged with first
Water inlet line 9 and the first outlet conduit 10, the first water inlet line 9 is for injecting high-temperature water, the first outlet pipe into inlet plenum 7
Road 10 out of outlet chamber 8 for being discharged the water after the circulation of U-shaped heat-transfer pipe 11,8 two sides of the inlet plenum 7 and outlet chamber
Bottom is respectively arranged with cable interface 12, and 8 are respectively arranged with the fixed bracket of a stainless steel in the inlet plenum 7 and outlet chamber
13, the fixed bracket 13 includes three fixed columns 131, and one end of the fixed column 131 is detachably connected the seal cover board
3, the other end of the fixed column 131 is fixedly connected with set square 132, and several first holes are uniformly distributed on the set square 132
Hole 133, is provided with the second hole 31 on the corresponding seal cover board 3 of several first hole, 133 vertical directions, and described second
It is fitted with inverted U heat-transfer pipe 11 in hole 31, is provided with thermocouple 14 on first hole 133, the one of the thermocouple 14
End is protruded into the straight tube of the inverted U heat-transfer pipe 11, and the other end is connected with conducting wire 15, and the conducting wire 15 passes through the cable interface
12 are connected with temperature measurer 16.
In the present embodiment, 133 quantity of the first hole is at least 10.It is arranged and multiple inserts the of thermocouple 14
One hole 133 can measure the temperature of U-shaped 11 entrance end of heat-transfer pipe of multiple groups, be statisticallyd analyze by multiple groups temperature data, can be with
The more accurate out temperature for measuring U-tube.
In the present embodiment, third hole 134 is additionally provided on the set square 132,134 diameter of third hole is big
In 133 diameter of the first hole.When so that the water in inlet plenum 7 and outlet chamber 8 circulating in U-shaped heat-transfer pipe 11, as stream
Fluid resistance is reduced in body channel.
In this embodiment, it is provided with seal washer 32 between the seal cover board 3 and the circular cylindrical cavity portion opening face,
The water leakage in simulation cavity 2 is prevented, the test of the analogue body of steam generator is influenced.
The working principle of the utility model is: passing through the first water inlet when using this steam generator simulation test device
Pipeline 9 persistently injects the water that temperature is greater than 100 DEG C into inlet plenum 7, and synchronous second water inlet line 51 that passes through is into cold source case 5
Normal-temperature water is persistently injected, and is discharged from the second outlet conduit 52, the water in inlet plenum 7 can pass through falling on the second hole 31
U-shaped heat-transfer pipe 11 circulates to outlet chamber 8, then is discharged through the first outlet pipe 10, the repetitive cycling above process, U-shaped heat-transfer pipe
High-temperature water in 11 can discharge heat to water in cold source case 5, generate steam in circulation, thus make the water of U-shaped heat-transfer pipe 11 into
Water temperature reduces after entering to outlet chamber 8, and 14 one end of thermocouple in inlet plenum 7 extend into the entrance of U-shaped heat-transfer pipe 11, out
14 one end of thermocouple in oral chamber 8 extend into the exit of U-shaped heat-transfer pipe 11, the thermoelectricity in inlet plenum 7 and outlet chamber 8
Even 14 other ends pass through from cable interface 12 by conducting wire 15 and connect temperature measurer 16, thus simultaneously, starting simulation 2 two sides of chamber
Temperature measurer 16, the temperature value that several U-shaped heat-transfer pipes 11 are imported and exported can be measured simultaneously.
It is above-described, the only preferable specific embodiment of the utility model, but the protection scope of the utility model is simultaneously
It is not limited to this, anyone skilled in the art within the technical scope disclosed by the utility model, according to this reality
It is subject to equivalent substitution or change with novel technical solution and its utility model design, should all covers the protection in the utility model
Within the scope of.
Claims (6)
1. steam generator analogue body experimental rig, special including test stand and the simulation cavity being fixed on above test stand
Sign is: the cylinder that the simulation cavity includes hemispherical cavity portion and is connected with hemispherical cavity portion opening
Cavity portion, circular cylindrical cavity portion opening are provided with seal cover board, and the seal cover board and the circular cylindrical cavity portion are logical
It crosses and is bolted, cold source case, the closing that the simulation cavity and the seal cover board are formed are provided at the top of the seal cover board
Partition is provided among chamber, the closed chamber is divided into inlet plenum and outlet chamber, the snout cavity by the partition
Room and outlet chamber two sides are respectively arranged with the first water inlet line and the first outlet conduit, the inlet plenum and outlet chamber two
Side bottom is respectively arranged with cable interface, and a fixed bracket is respectively arranged in the inlet plenum and outlet chamber, described solid
Fixed rack includes three fixed columns, and one end of the fixed column is detachably connected the seal cover board, the fixed column it is another
End is fixedly connected with set square, and several first holes, several first hole vertical directions are uniformly distributed on the set square
It is provided with the second hole on corresponding seal cover board, inverted U heat-transfer pipe, first hole are fitted in second hole
On be provided with thermocouple, one end of the thermocouple is protruded into the straight tube of the inverted U heat-transfer pipe, and the other end is connected with conducting wire,
The conducting wire is connected with temperature measurer by the cable interface.
2. steam generator analogue body experimental rig according to claim 1, it is characterised in that: also set on the set square
It is equipped with third hole, the third hole diameter is greater than the first hole diameter.
3. steam generator analogue body experimental rig according to claim 1, it is characterised in that: the fixed bracket is not
Rust steel material.
4. steam generator analogue body experimental rig according to claim 1, it is characterised in that: first pore quantity
At least 10.
5. steam generator analogue body experimental rig according to claim 1, it is characterised in that: two sides in the cold source case
It is respectively arranged with the second water inlet line and the second outlet conduit.
6. steam generator analogue body experimental rig according to claim 1, it is characterised in that: the seal cover board and institute
It states and is provided with seal washer between circular cylindrical cavity portion opening face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920538154.4U CN209624087U (en) | 2019-04-19 | 2019-04-19 | Steam generator analogue body experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920538154.4U CN209624087U (en) | 2019-04-19 | 2019-04-19 | Steam generator analogue body experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209624087U true CN209624087U (en) | 2019-11-12 |
Family
ID=68458759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920538154.4U Active CN209624087U (en) | 2019-04-19 | 2019-04-19 | Steam generator analogue body experimental rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209624087U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114333545A (en) * | 2021-12-08 | 2022-04-12 | 中国船舶重工集团公司第七一九研究所 | Combined vertical natural circulation steam generator's experimental analog body |
| CN115050492A (en) * | 2022-05-07 | 2022-09-13 | 上海核工程研究设计院有限公司 | Steam generator hydroecium head and visual test piece of main pump case integration |
-
2019
- 2019-04-19 CN CN201920538154.4U patent/CN209624087U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114333545A (en) * | 2021-12-08 | 2022-04-12 | 中国船舶重工集团公司第七一九研究所 | Combined vertical natural circulation steam generator's experimental analog body |
| CN115050492A (en) * | 2022-05-07 | 2022-09-13 | 上海核工程研究设计院有限公司 | Steam generator hydroecium head and visual test piece of main pump case integration |
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