CN115199568A - Test device for verifying hydraulic performance of main pump of compact reactor - Google Patents
Test device for verifying hydraulic performance of main pump of compact reactor Download PDFInfo
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- CN115199568A CN115199568A CN202210736888.XA CN202210736888A CN115199568A CN 115199568 A CN115199568 A CN 115199568A CN 202210736888 A CN202210736888 A CN 202210736888A CN 115199568 A CN115199568 A CN 115199568A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention relates to a test device for verifying the hydraulic performance of a compact reactor main pump, which comprises a first end enclosure simulation piece and a second end enclosure simulation piece, wherein a first cavity is arranged in the first end enclosure simulation piece, a second cavity is arranged in the second end enclosure simulation piece, a heat exchange pipe simulation tube group is communicated between the first cavity and the second cavity, a main pump installation cavity communicated with the first cavity is arranged in the first end enclosure simulation piece, the main pump installation cavity is communicated with a first resistance simulation cavity in a first annular cavity simulation piece through a flow channel, the second cavity is communicated with a second resistance simulation cavity in a second annular cavity simulation piece, and the first resistance simulation cavity and the second resistance simulation cavity are connected into a water circulation mechanism.
Description
Technical Field
The invention relates to the technical field of test equipment, in particular to a test device for verifying the hydraulic performance of a main pump of a compact reactor.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In a large pressurized water reactor nuclear power plant, a main pump inlet and a main pump outlet are usually connected with other main equipment through a main pipeline or a part of straight circular pipes. Nuclear reactors, in order to be more compact and flexible, generally require a compact design, i.e. the main pipe is eliminated, the main pump casing is integrated with the SG (steam generator), and the main pump outlet is also tightly connected with the RPV (pressure vessel). The seal head of the SG water chamber and the pump shell of the main pump are designed into an integrated forged piece structure, the hydraulic part of the main pump is directly inserted into the integrated seal head structure, and the nuclear main pump of the nuclear power compact small reactor is directly inverted and hung at the lower end of a steam generator. The fluid of the steam generator is directly injected into the nuclear main pump without rectification, and the inflow of the nuclear main pump can be distorted, which can affect the performance of the nuclear main pump. In a compact design, because an SG water chamber end socket and a pump shell of a main pump are integrated, an impeller inlet flow field may have a strong unsteady characteristic, so that the operation of the pump is influenced, and the main potential influence comprises the following steps: the hydraulic efficiency of the impeller is reduced due to flow impact at the inlet of the impeller blade, the pump is influenced by flow-induced vibration due to non-uniformity of circumferential flow of the impeller during operation, and the flow field disturbance at the inlet of the impeller is transmitted to the impeller and the interior of the volute to cause the rise of pressure pulsation in the pump. These effects may on the one hand increase the energy consumption of the pump and on the other hand jeopardize the safety stability of the operation of the main pump, affecting the operability of the nuclear power system.
The influence of inflow distortion of a conventional vane pump on the performance of the pump is frequently researched, a general water pump design also assumes uniform and stable inflow to develop a hydraulic pump model, and the research on the connection structure of an SG water chamber end socket and a nuclear main pump inlet is also provided, but the inventor finds out how the integrated structure of the SG water chamber end socket and a main pump casing can influence the performance of the nuclear main pump, the related research is not numerous, a numerical simulation mode is mostly adopted, the reliability of the result is not verified through tests, and particularly under the complex flow working condition, the conventional numerical simulation turbulence model cannot ensure that the real flow field dynamic characteristics of the interior of the main pump and a pipeline are truly reflected.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a test device for verifying the hydraulic performance of a main pump of a compact reactor, which can truly reflect the real flow field dynamics characteristics of the main pump of the compact reactor and the inside of a pipeline.
In order to achieve the purpose, the invention adopts the following technical scheme
The embodiment of the invention provides a test device for verifying the hydraulic performance of a main pump of a compact reactor, which comprises a first end enclosure simulation piece and a second end enclosure simulation piece, wherein a first cavity is arranged in the first end enclosure simulation piece, a second cavity is arranged in the second end enclosure simulation piece, a heat exchange pipe simulation tube group is communicated between the first cavity and the second cavity, a main pump installation cavity communicated with the first cavity is arranged in the first end enclosure simulation piece, the main pump installation cavity is communicated with a first resistance simulation cavity in a first annular cavity simulation piece through a flow channel, the second cavity is communicated with a second resistance simulation cavity in a second annular cavity simulation piece, and the first resistance simulation cavity and the second resistance simulation cavity are connected into a water circulation mechanism.
Optionally, the main pump mounting cavity includes a pump head mounting cavity and an impeller cavity arranged inside the first head simulator, and the impeller cavity is communicated with the flow channel and the first cavity.
Optionally, a pressure detection element and a pressure pulsation detection element are installed at a junction of the first cavity and the impeller cavity, and the pressure detection element and the pressure pulsation detection element are arranged inside the flow channel.
Optionally, the runner adopts venturi tube formula structure, and one end is connected with the main pump installation cavity, and the other end and first resistance simulation runner intercommunication.
Optionally, a neck portion in the flow passage is provided with a pressure difference detecting element.
Optionally, a pressure detection element is installed inside each of the first cavity and the second cavity.
Optionally, the first resistance simulation cavity is a semicircular cavity, the side surface of the inner arc is far away from the first end socket simulation piece, the second resistance simulation runner is a cavity with a semicircular section, and the arc surface of the second resistance simulation runner is close to the second end socket simulation piece.
Optionally, a third annular cavity simulation piece is arranged below the first annular cavity simulation piece, a fourth annular cavity simulation piece is arranged below the second annular cavity simulation piece, the third annular cavity simulation piece is provided with a first transition cavity communicated with the first resistance simulation cavity, the fourth annular cavity simulation piece is provided with a second transition cavity communicated with the second resistance simulation cavity, and the first transition cavity and the second transition cavity are connected into the water circulation mechanism.
Optionally, the heat exchange tube simulation tube group comprises a plurality of U-shaped tubes, one ends of the U-shaped tubes are fixed to the first end socket simulation part through tube plates and are communicated with the first cavity, and the other ends of the U-shaped tubes are fixed to the second end socket simulation part through tube plates and are communicated with the second cavity.
Optionally, the inner cavity surfaces of the first cavity and the second cavity both adopt quarter spherical surfaces, and the inner cavity surfaces of the first cavity and the second cavity can be combined into a hemispherical surface.
Optionally, the water circulation mechanism includes a water tank, an outlet of the water tank is communicated with the second resistance simulation cavity through a pipeline, and an inlet of the water tank is communicated with the first resistance simulation cavity through a pipeline.
The invention has the beneficial effects that:
1. the test device provided by the invention is provided with a first seal head simulation piece with a first cavity, a second seal head simulation piece with a second cavity and a heat exchange tube simulation tube group, wherein a main pump installation cavity communicated with a flow channel and the first cavity is arranged in the first seal head simulation piece, and the main pump installation cavity can be used for installing a main pump hydraulic component test piece, so that the whole test device can simulate a compact reactor.
2. The testing device provided by the invention has the advantages that the resistance characteristic of the RPV flow channel of the pressure container is simulated through the first resistance simulation cavity and the second resistance simulation cavity, the adopted structure is simple, the structure of the testing device is simplified, and the manufacturing cost of the testing device is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;
the system comprises a first end socket simulation piece 1, a second end socket simulation piece 2, a first cavity 3, a second cavity 4, a heat exchange tube simulation tube group 5, a heat exchange tube simulation tube group 6, a first tube plate 7, a second tube plate 8, an anti-vibration strip 9, a support plate 10, a steel structure base 11, a cushion block 12, an impeller cavity 13, a pump head other component installation cavity 14, a flow channel 15, a first annular cavity simulation piece 16, a first resistance simulation cavity 17, a third annular cavity simulation piece 18, a first transition cavity 19, a transition channel 20, a second annular cavity simulation piece 21, a second resistance simulation cavity 22, a fourth annular cavity simulation piece 23, a second transition cavity 24, a water tank 25, a filter 26, an auxiliary booster pump 27, a pressure stabilizing tank 28, a flow meter 29, a regulating valve 30, a plate type heat exchanger 31 and a driving device 31.
Detailed Description
Example 1
The embodiment provides a test device for verifying hydraulic performance of a main pump of a compact reactor, and as shown in fig. 1, the test device comprises a first head simulation piece 1 and a second head simulation piece 2, wherein a first cavity 3 is arranged in the first head simulation piece 1, and a second cavity 4 is arranged in the second head simulation piece 2.
The cavity surfaces of the first cavity 3 and the second cavity 4 both adopt a quarter sphere, and the first cavity 3 and the second cavity 4 can form a hemispherical structure, so that the first cavity 3 and the second cavity 4 are formed by moving towards two sides after being cut equivalently to a hemispherical surface.
The top of the first cavity 3 extends to the top surface of the first end socket simulation piece 1, and the top of the second cavity 4 extends to the top surface of the second end socket simulation piece 2.
Pressure detection component is installed through the pressure hole of getting that first head simulation piece 1 set up in the first cavity 3 for detect the fluid pressure in the first cavity, and pressure detection component is installed through the pressure hole of getting that second head simulation piece 2 set up in the second cavity 4, and be used for detecting the fluid pressure in the second cavity, in this embodiment, pressure detection component adopt current pressure sensor can, pressure sensor is connected with control system, can give control system with the data transmission who acquires. And pressure sensors in the first cavity and the second cavity can detect the pressure parameter of cooling water in the seal head.
And a heat exchange tube simulation tube group 5 is arranged between the first cavity 3 and the second cavity 4, the first cavity 3 is communicated with the second cavity 4 through the heat exchange tube simulation tube group 5, and the heat exchange tube simulation tube group 5 is used for simulating SG heat exchange tubes at the upstream of the compact reactor main pump.
In this embodiment, heat exchange tube simulation nest of tubes 5 includes a plurality of U type pipes, and a plurality of U type pipe parallel array distribute, and the one end and the first tube sheet 6 of U type pipe are fixed, and first tube sheet 6 is fixed on first head simulation piece 1 upper surface through a plurality of bolts, and is equipped with the sealing washer between first tube sheet 6 and the first head simulation piece 1, and first tube sheet 6 is provided with the through-hole that corresponds with U type pipe for U type pipe is linked together with 3 inner spaces of first cavity.
The other end of the U-shaped pipe is fixed with a second pipe plate 7, the second pipe plate 7 is fixed on the upper surface of the second seal head simulation part 2 through a plurality of bolts, a sealing ring is arranged between the second pipe plate 7 and the second seal head simulation part 2, and the second pipe plate 7 is provided with a through hole corresponding to the U-shaped pipe, so that the U-shaped pipe is communicated with the inner space of the second cavity 4.
In order to prevent the U-shaped tube bank from vibrating in the test process, a plurality of anti-vibration strips 8 arranged in a V shape are inserted between the arranged U-shaped tubes, and the anti-vibration strips 8 are hung on the U-shaped tubes in groups and are made of stainless steel strips for preventing the U-shaped tube bank from vibrating under the action of water power.
In this embodiment, the end of the U-shaped pipe further passes through a supporting plate 9, the supporting plate 9 is fixed to an external frame, and the supporting plate 9 is used for supporting the U-shaped pipe. Two ends of the U-shaped pipe penetrate through the supporting plate and are respectively communicated with the first cavity and the second cavity.
The U-shaped pipe is made of stainless steel pipes, a pressure difference sensor is installed on the U-shaped pipe at intervals, pressure difference measurement is carried out, and the flow resistance characteristic of the U-shaped pipe is measured.
In this embodiment, the first head simulator 1 and the second head simulator 2 are disposed on the steel structure base 10 and supported by the steel structure base 10.
Be provided with the main pump installation cavity in the first head simulation piece 1, the main pump installation cavity sets up in the below of first cavity 3, and is linked together with first cavity 3, and the main pump installation cavity is used for installing the main pump to the simulation of the compact reactor of simulation main pump case and hydroecium head integral type structure has been realized.
First cavity and second cavity are located the same height, because the main pump installation cavity is located the below of first cavity 3, consequently first head simulation piece 1 will be higher than second head simulation piece 2 along the size of vertical direction, for make first head simulation piece 1 and 2 top surfaces parallel and level of second head simulation piece, be equipped with cushion 11 between second head simulation piece 2 and the steel construction base, the thickness of cushion 11 makes the top surface of second head simulation piece 2 and the top surface parallel and level of first head simulation piece 1 mutually.
The main pump installation cavity includes impeller cavity 12 and other pump head part installation cavity 13 that set gradually from top to bottom, and impeller cavity 12 is used for putting into the draft tube, impeller, the stator of main pump, and other pump head part installation cavity 13 are used for installing the axle (part), the mechanical seal of main pump, and is corresponding, is provided with the trompil that is used for the pump head to stretch into other pump head part installation cavities on the steel construction base 10.
The side part of the first end enclosure simulation piece 1, which is close to the second end enclosure simulation piece 2, is provided with a flow channel part, the flow channel part is located in a space between the first end enclosure simulation piece 1 and the second end enclosure simulation piece 2, a flow channel 14 is arranged in the flow channel part, one end of the flow channel 14 is communicated with the impeller cavity 12, and the other end of the flow channel 14 extends into the first annular cavity simulation piece 15 and is communicated with the first resistance simulation cavity 16.
Along the flowing direction of water, the flow channel 14 adopts a Venturi tube structure, and the feasibility research of a primary loop flow test can be carried out.
One side of runner portion is provided with first ring chamber simulation piece 15, and first ring chamber simulation piece 15 is sealed with runner portion and cushion 11 side and is laminated, is provided with first resistance simulation chamber 16 in the first ring chamber simulation piece 15 for exert certain resistance to the circulating water, with simulation pressure vessel RPV import ring chamber runner resistance characteristic.
In this embodiment, the first resistance simulation cavity 16 is a cavity with a semi-circular cross section, and the outer arc surface thereof is arranged close to the first end socket simulation piece 1. The flow passage 14 extends into the interior of the first ring chamber simulator 15 and communicates with the first resistance simulation chamber 16.
A third annular cavity simulation piece 17 is arranged below the first annular cavity simulation piece 15, the third annular cavity simulation piece 17 is in sealing fit with the first annular cavity simulation piece 15, a first transition cavity 18 with a semicircular horizontal cross section is formed in the upper surface of the third annular cavity simulation piece 17, the shape of the first transition cavity 18 corresponds to that of the first resistance simulation cavity 16, the first transition cavity 18 is communicated with the first resistance simulation cavity 16, a transition channel 19 is formed in the horizontal cavity surface of the first transition cavity 18, and the transition channel extends to the bottom surface of the third annular cavity simulation piece.
One side of the second end enclosure simulation part 2 is provided with a second annular cavity simulation part 20, the second annular cavity simulation part 20 is in sealing fit with the second end enclosure simulation part 2 and a cushion block 11 below the second end enclosure simulation part 2, a second resistance simulation cavity 21 is arranged inside the second annular cavity simulation part 20, and the second resistance simulation cavity 21 is used for simulating the resistance characteristic of a chamber flow channel on the outlet of the reactor core of the pressure vessel RPV.
The second resistance simulation cavity 21 is a cavity with a semicircular horizontal section, and the second resistance simulation cavity 21 is communicated with the second cavity 4 through a middle channel.
A fourth annular cavity simulation piece 22 is arranged below the second annular cavity simulation piece 20, the second annular cavity simulation piece 20 is in sealing fit with the fourth annular cavity simulation piece 22, a second transition cavity 23 with a semicircular horizontal section is formed in the upper surface of the fourth annular cavity simulation piece 22, the second transition cavity 23 is communicated with the second resistance simulation cavity 21, a transition channel 19 is arranged on the horizontal cavity surface of the second transition cavity 23, and the transition channel 19 extends to the bottom surface of the fourth annular cavity simulation piece 22.
In this embodiment, the first resistance simulation cavity 16 and the second resistance simulation cavity 21 are arranged to simulate the flow channel resistance characteristics of the upper chambers of the inlet ring cavity and the core outlet of the pressure vessel with the minimum and simple structure, and the same water flow channel as the pressure vessel does not need to be arranged, so that the test device is simplified, and the processing and manufacturing are convenient.
The two transition channels 19 are connected into the water circulation mechanism through holes formed in the steel structure base 10, and therefore reciprocating circulation flow of cooling water among the second transition cavity 23, the second resistance simulation cavity 21, the second cavity 4, the heat exchange tube simulation tube group 5, the first cavity 3, the impeller cavity 12, the flow channel 14, the first resistance simulation cavity 16 and the first transition cavity 18 is achieved.
In this embodiment, a plurality of pressure detection elements and a plurality of pressure pulsation detection elements are installed at a junction position between the first cavity 3 and the impeller cavity 12, and are arranged along a circumferential direction of an edge of the junction, the pressure detection elements are pressure sensors, and the pressure pulsation detection elements are pressure pulsation sensors, and are respectively used for detecting pressure parameters and pressure pulsation parameters at an inlet of a main pump.
The cross section of the part of the flow channel 14, which is located in the first annular cavity simulation piece 15, is semicircular, a plurality of pressure detection elements and pressure pulsation detection elements are installed in the part along the circumferential direction, the pressure detection elements adopt pressure sensors, and the pressure pulsation detection elements adopt pressure pulsation sensors and are used for detecting cooling water pressure and pressure pulsation data at the outlet of a main pump.
A pressure difference detection element is further mounted at the necking part of the middle section of the flow channel, and the pressure difference detection element adopts a pressure difference sensor, so that the feasibility of measuring the flow of a loop by using differential pressure can be researched.
In this embodiment, the first head simulator 1 and the second head simulator 2 are processed according to the compact reactor scaling ratio size and are made of a transparent acrylic material, the first head simulator 1 and the second head simulator 2 are arranged in a split manner, the opposite planes of the first head simulator 1 and the second head simulator 2 can be used as PIV polishing planes, and a PIV device can be installed between the first head simulator 1 and the second head simulator 2 to meet the requirements of dynamic testing of a PIV flow field.
The water circulation mechanism comprises a water tank 24 and a corresponding pipeline, an outlet of the water tank 24 is communicated with a transition channel 19 of the fourth annular cavity simulation part 22 through a pipeline, a filter 25, an auxiliary booster pump 26, a pressure stabilizing tank 27, a flow meter 28 and a regulating valve 29 are sequentially arranged on the pipeline between the outlet of the water tank 24 and the transition channel 19 of the fourth annular cavity simulation part 22 along the flow direction of water, pressure sensors are arranged on two sides of the filter 25, a pressure sensor is arranged on the downstream of the auxiliary booster pump 26, a water temperature sensor is arranged between the pressure stabilizing tank 27 and the regulating valve 29, and a pressure sensor is arranged between the regulating valve 29 and the transition channel.
An inlet of the water tank 24 is communicated with the transition channel 19 of the third annular cavity simulation piece 17 through a pipeline, an adjusting valve 29 and a plate type heat exchanger 30 are sequentially arranged on the pipeline along the flowing direction of water, a pressure sensor and a water temperature sensor are mounted on the pipeline between the adjusting valve 29 and the transition channel, and the water temperature sensors are arranged on two sides of the plate type heat exchanger 30.
The flowmeter 28, the pressure sensor and the water temperature sensor on the pipeline are connected with the control system and are respectively used for monitoring the flow, the temperature and the pressure of the test loop and transmitting data to the control system.
The working method of the embodiment comprises the following steps:
a main pump hydraulic component test piece is manufactured in advance according to a compact reactor main pump structure according to a set shrinkage ratio, the main pump hydraulic component test piece is a wet winding main pump hydraulic component test piece or a shielding main pump hydraulic component test piece, a driving device 31 is arranged in a matched mode, the whole main pump hydraulic component test piece unit is composed of a guide cylinder, an impeller, a guide vane, a mechanical seal, a pump cover, a bearing chamber, a coupler, a motor and the like, wherein the mechanical seal and a shaft (part) are installed in a pump head other component installation cavity 13, the guide cylinder, the impeller and the guide vane are located in an impeller cavity 12, and the pump cover is connected with a first seal head simulation piece 1 through bolts.
After the main pump hydraulic component test piece is installed in the main pump installation cavity, water is injected into the water tank, and therefore the whole circulation loop is filled with water.
The driving device of the main pump hydraulic component test piece is started, the impeller rotates, driving water flows out of the water tank 24, flows through the pressure stabilizing tank 27, the regulating valve 29, the second resistance simulation cavity 21, the second cavity 4, the heat exchange pipe simulation pipe group 5, the first cavity 3, the impeller cavity 12, the flow channel 14, the first resistance simulation cavity 16 and the plate heat exchanger 30 in sequence and then flows back to the water tank 24, the circulating flow of the water is realized, data obtained by measurement of each instrument is read, the performance and the related parameters of the main pump and the integrated structure can be obtained, the influence of the flow field characteristics of the pump shell and the end enclosure of the main pump on the main pump is further obtained, the influence of the main pump on the SG and the flow field of the integrated structure is further confirmed, the engineering feasibility of the scheme of the main pump of the compact reactor is confirmed, and the design analysis and the structural design of the integrated structure of the compact reactor are guided.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive changes in the technical solutions of the present invention.
Claims (10)
1. The utility model provides a test device for verifying compact reactor main pump hydraulic performance, a serial communication port, including first head simulation piece and second head simulation piece, be equipped with first cavity in the first head simulation piece, be equipped with the second cavity in the second head simulation piece, the intercommunication has heat exchange tube simulation nest of tubes between first cavity and the second cavity, be equipped with the main pump installation cavity with first cavity intercommunication in the first head simulation piece, the main pump installation cavity passes through runner and the first resistance simulation chamber intercommunication in the first ring chamber simulation piece, the second cavity communicates with the second resistance simulation chamber in the second ring chamber simulation piece, first resistance simulation chamber and second resistance simulation chamber access water circulation mechanism.
2. The testing apparatus for testing the hydraulic performance of the main pump of the compact reactor according to claim 1, wherein the main pump mounting cavity comprises a pump head other component mounting cavity and an impeller cavity which are arranged inside the first head simulator, and the impeller cavity is communicated with the flow passage and the first cavity.
3. The testing apparatus for testing hydraulic performance of the main pump of the compact reactor according to claim 2, wherein a pressure detecting element and a pressure pulsation detecting element are installed at a junction of the first cavity and the impeller cavity, and the pressure detecting element and the pressure pulsation detecting element are disposed inside the flow channel.
4. The testing device for verifying the hydraulic performance of the main pump of the compact reactor as claimed in claim 1, wherein the flow channel adopts a venturi-type structure, one end of the flow channel is connected with the main pump installation cavity, and the other end of the flow channel is communicated with the first resistance simulation flow channel;
further, a neck portion in the flow passage is provided with a differential pressure detecting element.
5. The test device for verifying the hydraulic performance of the main pump of the compact reactor according to claim 1, wherein the pressure detection elements are installed inside the first cavity and the second cavity.
6. The testing device for verifying the hydraulic performance of the main pump of the compact reactor as claimed in claim 1, wherein the first resistance simulation cavity is a semi-circular cavity, the side surface of the inner arc is far away from the first head simulation part, the second resistance simulation flow passage is a cavity with a semi-circular section, and the arc surface of the second resistance simulation flow passage is close to the second head simulation part.
7. The test device for verifying the hydraulic performance of the main pump of the compact reactor as claimed in claim 1, wherein a third annular cavity simulator is arranged below the first annular cavity simulator, a fourth annular cavity simulator is arranged below the second annular cavity simulator, the third annular cavity simulator is provided with a first transition cavity communicated with the first resistance simulation cavity, the fourth annular cavity simulator is provided with a second transition cavity communicated with the second resistance simulation cavity, and the first transition cavity and the second transition cavity are connected into the water circulation mechanism.
8. The test device for verifying the hydraulic performance of the main pump of the compact reactor as claimed in claim 1, wherein the heat exchange pipe simulation pipe group comprises a plurality of U-shaped pipes, one ends of the U-shaped pipes are fixed with the first head simulation part through a pipe plate and are communicated with the first cavity, and the other ends of the U-shaped pipes are fixed with the second head simulation part through a pipe plate and are communicated with the second cavity.
9. The testing apparatus for testing the hydraulic performance of the main pump of the compact reactor according to claim 1, wherein the inner cavity surfaces of the first cavity and the second cavity are both quarter-spherical surfaces, and the inner cavity surfaces of the first cavity and the second cavity can be combined into a hemispherical surface.
10. The test device for verifying the hydraulic performance of the main pump of the compact reactor as claimed in claim 1, wherein the water circulation mechanism comprises a water tank, an outlet of the water tank is communicated with the second resistance simulation chamber through a pipeline, and an inlet of the water tank is communicated with the first resistance simulation chamber through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210736888.XA CN115199568A (en) | 2022-06-27 | 2022-06-27 | Test device for verifying hydraulic performance of main pump of compact reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210736888.XA CN115199568A (en) | 2022-06-27 | 2022-06-27 | Test device for verifying hydraulic performance of main pump of compact reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115199568A true CN115199568A (en) | 2022-10-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210736888.XA Pending CN115199568A (en) | 2022-06-27 | 2022-06-27 | Test device for verifying hydraulic performance of main pump of compact reactor |
Country Status (1)
| Country | Link |
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| CN (1) | CN115199568A (en) |
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2022
- 2022-06-27 CN CN202210736888.XA patent/CN115199568A/en active Pending
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Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. |