CN210531166U - ASME is got evidence and is used simple structure type centrifugal pump - Google Patents
ASME is got evidence and is used simple structure type centrifugal pump Download PDFInfo
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- CN210531166U CN210531166U CN201921323378.XU CN201921323378U CN210531166U CN 210531166 U CN210531166 U CN 210531166U CN 201921323378 U CN201921323378 U CN 201921323378U CN 210531166 U CN210531166 U CN 210531166U
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Abstract
The utility model discloses a simple structure type centrifugal pump for ASME evidence obtaining, which comprises a first base, a second base, a pump body, a pump cover, a mechanical sealing gland, a bearing body, a coupler and a motor, wherein the pump body, the pump cover, the mechanical sealing gland, the bearing body, the coupler and the motor are coaxially arranged from left to right in sequence; an inlet flange is arranged at the left end of the pump body, and an outlet flange is arranged at the top end of the pump body; the pump cover is connected with the right end of the pump body, the pump cover is connected with one end of the bearing body, and the mechanical sealing gland is arranged between the pump cover and the bearing body; the other end of the bearing body is connected with the motor through the coupler; and a coupling cover is covered outside the coupling. The centrifugal pump with simple structure for ASME evidence obtaining of the utility model has simple structure, convenient assembly and disassembly and convenient maintenance; the forensic requirements are met by designing and manufacturing the nuclear class one pump pressure containing member according to the highest class standard with the simplest possible pump.
Description
Technical Field
The utility model relates to an ASME is got evidence and is used simple structure type centrifugal pump.
Background
A cooling circulating water pump in a closed cooling system of a first unit of a nuclear power plant (simulated power station) in south China takes away heat in other equipment by utilizing the flowing of a coolant, and the grade of the cooling circulating water pump is nuclear grade one. The simulation piece for ASME evidence obtaining of proper design needs to be designed to simulate the pressure-bearing part (pump body, pump cover and mechanical sealing gland) on the cooling circulating water pump applied to the closed cooling system of the first unit of the nuclear power plant in south China, and then various ASME evidence obtaining is carried out.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a centrifugal pump with simple structure for ASME evidence collection, which has simple structure, convenient assembly and disassembly and convenient maintenance; the forensic requirements are met by designing and manufacturing the nuclear class one pump pressure containing member according to the highest class standard with the simplest possible pump.
The technical scheme for realizing the purpose is as follows: the utility model provides an ASME is forensics and is used simple structure type centrifugal pump, includes first base, second base, the pump body, pump cover, mechanical seal gland, bearing body, shaft coupling and motor, wherein:
the pump body, the pump cover, the mechanical sealing gland, the bearing body, the coupler and the motor are coaxially arranged from left to right in sequence;
the pump body is fixed on the first base through a bolt, the motor is fixed on the base through a bolt, the bottom end of the second base is fixed on the first base through a bolt, and the bearing body is fixed on the top end of the second base through a bolt;
an inlet flange is arranged at the left end of the pump body, and an outlet flange is arranged at the top end of the pump body;
the pump cover is connected with the right end of the pump body, the pump cover is connected with one end of the bearing body, and the mechanical sealing gland is arranged between the pump cover and the bearing body;
the other end of the bearing body is connected with the motor through the coupler;
the outside of shaft coupling has covered the shaft coupling cover, the bottom mounting of shaft coupling cover is in on the first base.
The centrifugal pump with the simple structure for ASME evidence obtaining is characterized in that the coupling is an elastic diaphragm coupling.
The centrifugal pump with the simple structure for ASME evidence collection is characterized in that the pump body is made of SA-216M Gr.WCB material; the mechanical sealing gland and the pump cover are made of SA-105M materials; the bolt is made of SA-193M Gr.B7, and the nut matched with the bolt is made of SA-194M Gr.2H; the first base and the second base are made of SA-516M Gr.485 materials respectively.
The centrifugal pump with the simple structure for ASME evidence obtaining is characterized in that an ASME N-type nameplate is arranged on the bearing body.
The centrifugal pump with the simple structure for ASME evidence obtaining is characterized in that the pump body is of a single-stage single-suction structure.
The centrifugal pump with the simple structure for ASME evidence obtaining is characterized in that the top end of the first base is provided with the pump body support, the middle support and the motor support, the pump body support and the motor support are correspondingly arranged on the left side and the right side of the top end of the first base one by one, and the middle support is arranged between the pump body support and the motor support; the pump body passes through the bolt fastening on the pump body support, the motor passes through the bolt fastening on the motor support, the bottom of second base passes through the bolt fastening on the middle support.
The centrifugal pump with simple structure for ASME evidence obtaining of the utility model has simple structure, convenient assembly and disassembly and convenient maintenance; the nuclear first-level pump pressure-bearing member is designed and manufactured according to the standard of the highest level by utilizing the pump with the simplest structure to meet the evidence obtaining requirement.
Drawings
FIG. 1 is a front view of the ASME evidence-obtaining centrifugal pump of simple structure type of the present invention;
FIG. 2 is a side view of the ASME evidence-obtaining centrifugal pump of simple construction of the present invention;
fig. 3 is a sectional view of the pump body of the simple structure centrifugal pump for ASME evidence collection of the present invention;
fig. 4 is the structure diagram of the first base of the simple structure centrifugal pump for ASME evidence collection of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following detailed description is provided with reference to the accompanying drawings:
referring to fig. 1, 2, 3 and 4, a preferred embodiment of the present invention is a centrifugal pump with a simple structure for ASME evidence collection, which includes a first base 1, a second base 2, a pump body 3, a pump cover 4, a mechanical seal gland 5, a bearing body 6, a shaft coupling 7 and a motor 8.
The pump body 3, the pump cover 4, the mechanical seal gland 5, the bearing body 6, the coupler 7 and the motor 8 are coaxially arranged from left to right in sequence; the top end of the first base 1 is provided with a pump body support 11, a middle support 12 and a motor support 13, the pump body support 11 and the motor support 13 are correspondingly arranged on the left side and the right side of the top end of the first base 1 one by one, and the middle support 12 is arranged between the pump body support 11 and the motor support 13; the pump body 3 is fixed on the pump body support 11 through bolts, the motor 8 is fixed on the motor support 13 through bolts, and the bottom surface of the second base 2 is fixed on the middle support 13 through bolts. The bearing body 6 is fixed at the top end of the second base 2 through bolts
The pump body 3 is of a single-stage and single-suction structure; the left end of the pump body 3 is provided with an inlet flange 31, and the top end is provided with an outlet flange 32, so that a pump body structure with axial suction and radial discharge is formed. The inlet flange 31 adopts a DN200 flange; the outlet flange 32 is a DN150 flange.
The pump cover 4 is connected with the right end of the pump body 3, the pump cover 4 is connected with one end of the bearing body 6, and the mechanical sealing gland 5 is arranged between the pump cover 4 and the bearing body 6; the other end of the bearing body 6 is connected with a motor 8 through a coupler 7; the coupling 7 is an elastic diaphragm coupling. The coupling 7 is externally covered with a coupling cover 9, and the bottom end of the coupling cover 9 is fixed on the first base 1.
The motor 8 is provided with a motor nameplate 81. The bearing body 6 is provided with an ASME N-type nameplate, which should be prepared according to NCA-8000.
The utility model discloses an ASME is collected evidence and is used simple structure type centrifugal pump, for single-stage single suction, horizontal, axial suction, radial exhaust centrifugal pump, the pump is driven by 50Hz alternating current motor, and mechanical seal's pattern is utilized to the bearing seal pattern, by the elastic diaphragm coupling joint between pump and the motor. For the ASME boundary are the common support from the end face of the pump inlet flange to the end face of the outlet flange, the pump cover, the mechanical seal gland, and the pump and motor assembly.
The utility model discloses an ASME is forensics and is used simple structure type centrifugal pump, the design of centrifugal pump should go on according to NB-3100, 3200, 3400's requirement, and support piece designs according to the NF standard, and the material on pressure-bearing boundary should obey the requirement that ASME Section III Subsection NB-2000, NF-2000and ASME Section II stipulate. Because the impact property and other conditions of the material can be better demonstrated by evidence collection, the following materials are selected according to the actual conditions and various factors: the pump body 3 is made of SA-216M Gr.WCB material; the mechanical sealing gland 5 and the pump cover 4 are made of SA-105M materials; the bolt is made of SA-193M Gr.B7, and the nut matched with the bolt is made of SA-194M Gr.2H; the first base 1 and the second base 2 are respectively made of SA-516M Gr.485 materials.
The manufacturing requirements were performed according to ASME NB-4000 and NF-4000, the nondestructive requirements were performed according to ASME Section III, Division 1, Subsection NB, NF and Section V, and the hydrostatic test was performed according to NB-6000.
The utility model discloses a simple structure type centrifugal pump is used in ASME evidence obtaining, centrifugal pump design parameter as follows: the design pressure (inside) is 1.6 Mpa; the design temperature is 65 ℃; the operating pressure is 0.6 MPa; the operating temperature is 45 ℃; the test pressure is 2.0-2.11 MPa, the test temperature is 15-40 ℃, and the rated flow is 360m3H; the rated lift is 45 m; the pump efficiency is 80%; the cavitation allowance is 5 m; the rated rotating speed is 1450 r/min; the allowable corrosion margin is 1.0 mm; the external pressure is atmospheric pressure; the external environment temperature is 15-40 DEG C
The pressure-bearing part of the pump is designed according to the grade of an ASME nuclear first-level pump, the pressure-bearing part is made of carbon steel materials for better demonstration of impact performance of materials, and the pump support (the first base 1 and the second base 2) is formed by welding carbon steel plates.
The ASME of the utility model is designed by using the standard of nuclear level; selecting a carbon steel material as a nuclear first-level pump material for demonstrating the impact performance of the material; the pump support (the first base 1 and the second base 2) is formed by welding carbon steel plates and meets the ASME NF standard. But the utility model discloses an ASME is collected evidence and is used simple structure type centrifugal pump is only an ASME is collected evidence and is used simulation piece, and the shortcoming can not directly use as the product, only can demonstrate impact property and satisfy the requirement of collecting evidence.
The utility model discloses an ASME is forensics and is used simple structure type centrifugal pump, when using, according to the standard of material, combine the thickness of material, the material that can not avoid the impact in the use temperature isoparametric selection ASME standard has increased the requirement of impact in the purchase specification of material for ASME material supplier carries out impact test to the material and reaches the requirement of ASME standard and embodies in the middle of CMTR.
To sum up, the simple structure centrifugal pump for ASME evidence collection of the utility model has simple structure, convenient assembly and disassembly and convenient maintenance; the nuclear first-level pump pressure-bearing member is designed and manufactured according to the standard of the highest level by utilizing the pump with the simplest structure to meet the evidence obtaining requirement.
It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (6)
1. The utility model provides an ASME is forensics and is used simple structure type centrifugal pump which characterized in that, includes first base, second base, the pump body, pump cover, mechanical seal gland, bearing body, shaft coupling and motor, wherein:
the pump body, the pump cover, the mechanical sealing gland, the bearing body, the coupler and the motor are coaxially arranged from left to right in sequence;
the pump body is fixed on the first base through a bolt, the motor is fixed on the base through a bolt, the bottom end of the second base is fixed on the first base through a bolt, and the bearing body is fixed on the top end of the second base through a bolt;
an inlet flange is arranged at the left end of the pump body, and an outlet flange is arranged at the top end of the pump body;
the pump cover is connected with the right end of the pump body, the pump cover is connected with one end of the bearing body, and the mechanical sealing gland is arranged between the pump cover and the bearing body;
the other end of the bearing body is connected with the motor through the coupler;
the outside of shaft coupling has covered the shaft coupling cover, the bottom mounting of shaft coupling cover is in on the first base.
2. The centrifugal pump of simple construction for ASME forensics of claim 1, wherein said coupling is a flexible diaphragm coupling.
3. The centrifugal pump with a simple structure for ASME evidence obtaining as claimed in claim 1, wherein the pump body is made of SA-216M Gr.WCB material; the mechanical sealing gland and the pump cover are made of SA-105M materials; the bolt is made of SA-193M Gr.B7, and the nut matched with the bolt is made of SA-194M Gr.2H; the first base and the second base are made of SA-516M Gr.485 materials respectively.
4. The centrifugal pump of simple construction for ASME evidence finding as described in claim 1, wherein said bearing body is provided with an ASME N nameplate.
5. The centrifugal pump of simple construction for ASME evidence according to claim 1, wherein said pump body is of single stage, single suction construction.
6. The centrifugal pump with a simple structure for ASME evidence obtaining as claimed in claim 1, wherein the top end of the first base is provided with a pump body support, an intermediate support and a motor support, the pump body support and the motor support are arranged on the left side and the right side of the top end of the first base in a one-to-one correspondence manner, and the intermediate support is arranged between the pump body support and the motor support; the pump body passes through the bolt fastening on the pump body support, the motor passes through the bolt fastening on the motor support, the bottom of second base passes through the bolt fastening on the middle support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921323378.XU CN210531166U (en) | 2019-08-15 | 2019-08-15 | ASME is got evidence and is used simple structure type centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921323378.XU CN210531166U (en) | 2019-08-15 | 2019-08-15 | ASME is got evidence and is used simple structure type centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210531166U true CN210531166U (en) | 2020-05-15 |
Family
ID=70601738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921323378.XU Active CN210531166U (en) | 2019-08-15 | 2019-08-15 | ASME is got evidence and is used simple structure type centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210531166U (en) |
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2019
- 2019-08-15 CN CN201921323378.XU patent/CN210531166U/en active Active
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