CN108267268A - A kind of static pressure test apparatus for RCV pump mechanical sealing components - Google Patents
A kind of static pressure test apparatus for RCV pump mechanical sealing components Download PDFInfo
- Publication number
- CN108267268A CN108267268A CN201611258538.8A CN201611258538A CN108267268A CN 108267268 A CN108267268 A CN 108267268A CN 201611258538 A CN201611258538 A CN 201611258538A CN 108267268 A CN108267268 A CN 108267268A
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- China
- Prior art keywords
- rcv
- mechanical sealing
- sealing assemblies
- simulation
- pump
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- Pending
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- 238000007789 sealing Methods 0.000 title claims abstract description 70
- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 230000003068 static effect Effects 0.000 title claims abstract description 24
- 238000000429 assembly Methods 0.000 claims abstract description 44
- 230000000712 assembly Effects 0.000 claims abstract description 44
- 238000004088 simulation Methods 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention is a kind of static pressure test apparatus for RCV pump mechanical sealing components, is related to conventional pumps service technique field.The present invention includes RCV simulations pump shaft, water supply connector, RCV sealed cylinders, exhaust joint；RCV sealed cylinders are fixedly connected with RCV mechanical sealing assemblies, and the bottom and the bottom of RCV simulation pump shafts of RCV sealed cylinders are fixedly connected, and form a cavity between RCV sealed cylinders and RCV simulation pump shafts, RCV mechanical sealing assemblies are installed in the cavities；The water supply connector connected with cavity water filling into cavity is installed in the bottom of RCV simulation pump shafts, the exhaust joint connected with cavity at the top of RCV sealed cylinders is installed and discharges empty intracavity gas.Sealed cylinder, simulation pump shaft size tolerance in the present invention is according to machine envelope component dimensional tolerance processing, it is ensured that simulation assembling, test effect are with being actually consistent；The configuration of the present invention is simple, it is easy to operate.
Description
Technical field
The present invention relates to conventional pumps service technique fields, and in particular to a kind of static pressure for RCV pump mechanical sealing components
Experimental rig.
Background technology
In Nuclear Power Station grade pump apparatus, RCV pumps belong to nuclear safety first device, there is very important effect, because
This must regularly be overhauled and maintenance work.
Mechanical sealing assembly is the key link overhauled every time, at present, close for the machinery re-assemblied after Disintegration overhaul
Sealing assembly, it assembles the facility of effect for no detection, which can seal assembling condition with detection machine, avoid assembling unqualified machine envelope group
Part installation operation, causes RCV pumps to reveal the problem of shutting down.
Invention content
The present invention provides a kind of static pressure test apparatus for RCV pump mechanical sealing components, using simple, reliable structure
Form simulates RCV pump mechanical sealing component use states, quick to carry out the mechanical sealing assembly static state water pressure test, detection machinery
The assembling effect of seal assembly.
The technical scheme is that：
A kind of static pressure test apparatus for RCV pump mechanical sealing components, including RCV simulations pump shaft, water supply connector, spiral shell
Nail, O-ring seal, RCV sealed cylinders, exhaust joint；
RCV mechanical sealing assemblies madial wall is step, and upper diameter is less than lower diameter；Outside RCV mechanical sealing assemblies
Side wall is step, and upper diameter is more than lower diameter；
RCV simulation pump shafts are mounted on inside RCV mechanical sealing assemblies from below, and shape is matched with RCV mechanical sealing assemblies,
Corresponding position blocks RCV mechanical sealing assembly inner wall step surfaces equipped with the shaft shoulder；The regional area above the RCV simulation pump shaft shaft shoulders,
RCV simulation pump shafts are fitted closely with RCV mechanical sealing assemblies, and contact surface is provided with O-ring seal；
RCV sealed cylinders are mounted on outside RCV mechanical sealing assemblies from below, and shape is matched with RCV mechanical sealing assemblies,
Corresponding position blocks RCV mechanical sealing assembly outer wall step surfaces equipped with the shaft shoulder；In the side wall part of RCV sealed cylinders and shaft shoulder area
Domain, RCV sealed cylinders are fitted closely with RCV mechanical sealing assemblies, and two contact surfaces are respectively arranged with O-ring seal；
RCV sealed cylinders are fixedly connected with RCV mechanical sealing assemblies by screw, and the bottom of RCV sealed cylinders leads to
The bottom for crossing screw and RCV simulation pump shafts is fixedly connected, and a sky is formed between RCV sealed cylinders and RCV simulation pump shafts
Chamber, RCV mechanical sealing assemblies are installed in the cavities；
The water supply connector connected with cavity water filling into cavity is installed in the bottom of RCV simulation pump shafts, in RCV sealing drums
The exhaust joint connected with cavity is installed to discharge empty intracavity gas at the top of body.
Round nut is further included, the top of RCV simulation pump shafts is equipped with round nut and axial limit is carried out to RCV mechanical sealing assemblies
Position.
The screw is soket head cap screw.
The RCV simulation pump shafts and RCV sealed cylinders are made of stainless steel material.
Beneficial effects of the present invention are：
The present invention verifies mechanical sealing assembly for the static water pressure test whole after the maintenance of RCV pump mechanical sealings component
Whether state is good, so as to the human and material resources loss that the repair for avoiding repeatability is brought, ensures the smooth, quick of service work
Carry out.
Sealed cylinder, simulation pump shaft size tolerance in the present invention is according to machine envelope component dimensional tolerance processing, it is ensured that
Simulation assembling, test effect are with being actually consistent.
It is fastened after internal installation mechanical sealing assembly of the invention using screw, is then discharged out chamber interior air, treats high pressure
Water can close valve after being completely filled with test chamber, carry out RCV pump mechanical sealing component static pressure tests, easy to operate.
Description of the drawings
Fig. 1 is schematic diagram of the present invention.
In figure, 1-RCV simulation pump shafts, 2- water supply connectors, 3- soket head cap screws, 4-O type sealing rings, 5-RCV sealed cylinders,
6- exhaust joints, 7-RCV mechanical sealing assemblies, 8- round nuts.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.
The present invention is a kind of static pressure test apparatus for RCV pump mechanical sealing components, is made of stainless steel, and is used
Integral static pressure experiment is carried out to mechanical sealing assembly when RCV is pumped and overhauled, checks whether mechanical sealing assembly assembling quality meets
Regulation requirement.
As shown in Figure 1, the present invention be used for RCV mechanical sealing assemblies 7 carry out static pressure test, including RCV simulation pump shaft 1,
Water supply connector 2, soket head cap screw 3, O-ring seal 4, RCV sealed cylinders 5, exhaust joint 6, round nut 8.
7 madial wall of RCV mechanical sealing assemblies is step, and upper diameter is less than lower diameter；RCV mechanical sealing assemblies 7
Lateral wall is step, and upper diameter is more than lower diameter.
RCV simulation pump shafts 1 are mounted on inside RCV mechanical sealing assemblies 7 from below, shape and RCV mechanical sealing assemblies 7
Match, corresponding position blocks 7 inner wall step surface of RCV mechanical sealing assemblies equipped with the shaft shoulder；In 1 shaft shoulder of RCV simulation pump shafts/RCV machineries
The top regional area of 7 step surface of seal assembly, RCV simulation pump shaft 1 and RCV mechanical sealing assemblies 7 fit closely, and contact surface is set
1 O-ring seal 4 is equipped with, water is sealed in static pressure test.
RCV sealed cylinders 5 are mounted on outside RCV mechanical sealing assemblies 7 from below, shape and RCV mechanical sealing assemblies 7
Match, corresponding position blocks 7 outer wall step surface of RCV mechanical sealing assemblies equipped with the shaft shoulder；RCV sealed cylinders 5 side wall part and
Shoulder region, RCV sealed cylinders 5 and RCV mechanical sealing assemblies 7 fit closely, and two contact surfaces are respectively arranged with O-ring seal
4, water is sealed in static pressure test.
RCV sealed cylinders 5 and RCV mechanical sealing assemblies 7 are fixedly connected by soket head cap screw 3, RCV sealed cylinders
The bottom that 5 bottom simulates pump shaft 1 by soket head cap screw 3 and RCV is fixedly connected, and RCV sealed cylinders 5 and RCV is simulated
A cavity is formd between pump shaft 1, for carrying out static pressure test to the RCV mechanical sealing assemblies 7 installed in the cavities.
The bottom of RCV simulation pump shafts 1 is equipped with the water supply connector 2 connected with cavity, is equipped at the top of RCV sealed cylinders 5 and sky
The exhaust joint 6 of chamber connection, when carrying out static pressure test, water supply connector 2 is used for the water filling into cavity, and exhaust joint 6 is for sky
The discharge of intracavity gas, static pressure test can be started by treating that sky intracavity gas empties and reaches test pressure.
The shaft end of RCV simulation pump shafts 1 is equipped with round nut 8, for axial restraint RCV mechanical sealing assemblies 7, simulates RCV
Axial limiting during 7 operating status of mechanical sealing assembly.
The present invention simulates the spatial simulation RCV mechanical sealing assemblies 7 between pump shaft 1 by RCV sealed cylinders 5 and RCV and pacifies
It behave affectedly room, during experiment, operating pressure that chamber interior injection high pressure Fluid Dynamics RCV mechanical sealing assemblies 7 are born when working.
The assembling and application method of the present invention is as follows：
Step 1 assembles static pressure test apparatus of the present invention, after O-ring seal 4 is packed into RCV simulation pump shafts 1, using interior
RCV simulation pump shafts 1 are assembled into one by hex screw 3 with RCV sealed cylinders 5, then install water supply connector 2 and exhaust successively
Connector 6.
RCV mechanical sealing assemblies 7 are packed into the static pressure test apparatus by step 2, are consolidated by soket head cap screw 3
It is fixed.
Step 3, the inlet valve opened the drain tap installed on exhaust joint 6 successively and installed in water supply connector 2 are opened
Beginning water filling closes drain tap after the emptying of container internal chamber air, and system pressure closes valve after reaching pressure test pressure, into
Row static pressure test.
The embodiment of the present invention is explained in detail above, the above embodiment is only most highly preferred embodiment of the invention,
It, within the knowledge of a person skilled in the art, can also be but the present invention is not limited to above-described embodiment
It is made a variety of changes under the premise of not departing from present inventive concept.
Claims (4)
1. a kind of static pressure test apparatus for RCV pump mechanical sealing components, it is characterised in that：Including RCV simulation pump shaft (1),
Water supply connector (2), screw, O-ring seal (4), RCV sealed cylinders (5), exhaust joint (6)；
RCV mechanical sealing assemblies (7) madial wall is step, and upper diameter is less than lower diameter；RCV mechanical sealing assemblies (7)
Lateral wall is step, and upper diameter is more than lower diameter；
RCV simulation pump shafts (1) are mounted on RCV mechanical sealing assemblies (7) inside, shape and RCV mechanical sealing assemblies (7) from below
Matching, corresponding position block RCV mechanical sealing assemblies (7) inner wall step surface equipped with the shaft shoulder；On RCV simulation pump shaft (1) shaft shoulders
Square regional area, RCV simulation pump shafts (1) are fitted closely with RCV mechanical sealing assemblies (7), and contact surface is provided with O-ring seal
(4)；
RCV sealed cylinders (5) are mounted on RCV mechanical sealing assemblies (7) outside, shape and RCV mechanical sealing assemblies (7) from below
Matching, corresponding position block RCV mechanical sealing assemblies (7) outer wall step surface equipped with the shaft shoulder；Side wall in RCV sealed cylinders (5)
Part and shoulder region, RCV sealed cylinders (5) are fitted closely with RCV mechanical sealing assemblies (7), and two contact surfaces are set respectively
There is O-ring seal (4)；
RCV sealed cylinders (5) are fixedly connected with RCV mechanical sealing assemblies (7) by screw, the bottom of RCV sealed cylinders (5)
The bottom that pump shaft (1) is simulated in portion by screw and RCV is fixedly connected, RCV sealed cylinders (5) and RCV simulation pump shafts (1) it
Between formed a cavity, RCV mechanical sealing assemblies (7) install in the cavities；
Water supply connector (2) water filling into cavity connected with cavity in the bottom of RCV simulation pump shafts (1) is installed, is sealed in RCV
The exhaust joint (6) connected with cavity is installed to discharge empty intracavity gas at the top of cylinder (5).
2. a kind of static pressure test apparatus for RCV pump mechanical sealing components as described in claim 1, it is characterised in that：Also
Including round nut (8), the top of RCV simulation pump shafts (1) is equipped with round nut (8) and RCV mechanical sealing assemblies (7) is carried out axially
Limiting.
3. a kind of static pressure test apparatus for RCV pump mechanical sealing components as described in claim 1, it is characterised in that：Institute
Screw is stated as soket head cap screw (3).
4. a kind of static pressure test apparatus for RCV pump mechanical sealing components as described in claim 1, it is characterised in that：Institute
It states RCV simulation pump shafts (1) and RCV sealed cylinders (5) is made of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611258538.8A CN108267268A (en) | 2016-12-30 | 2016-12-30 | A kind of static pressure test apparatus for RCV pump mechanical sealing components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611258538.8A CN108267268A (en) | 2016-12-30 | 2016-12-30 | A kind of static pressure test apparatus for RCV pump mechanical sealing components |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108267268A true CN108267268A (en) | 2018-07-10 |
Family
ID=62754953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611258538.8A Pending CN108267268A (en) | 2016-12-30 | 2016-12-30 | A kind of static pressure test apparatus for RCV pump mechanical sealing components |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108267268A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907098A (en) * | 2019-11-19 | 2020-03-24 | 长沙永昌车辆零部件有限公司 | Static water leakage experimental equipment and method for sealing strip |
Citations (5)
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|---|---|---|---|---|
| CN204984834U (en) * | 2015-09-07 | 2016-01-20 | 中广核核电运营有限公司 | Static pressure test device of mechanical seal subassembly appraisal of reactor main pump |
| CN204991160U (en) * | 2015-08-13 | 2016-01-20 | 中广核核电运营有限公司 | Main pump hydraulic component's static pressure test device |
| CN105351207A (en) * | 2015-12-15 | 2016-02-24 | 上海电气凯士比核电泵阀有限公司 | Charging pump |
| CN205354675U (en) * | 2015-12-18 | 2016-06-29 | 核动力运行研究所 | Experimental two, tertiary sealed analogue means of main pump hydraulic component static pressure |
| CN206523267U (en) * | 2016-12-30 | 2017-09-26 | 核动力运行研究所 | A kind of static pressure test apparatus for RCV pump mechanical sealing components |
-
2016
- 2016-12-30 CN CN201611258538.8A patent/CN108267268A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204991160U (en) * | 2015-08-13 | 2016-01-20 | 中广核核电运营有限公司 | Main pump hydraulic component's static pressure test device |
| CN204984834U (en) * | 2015-09-07 | 2016-01-20 | 中广核核电运营有限公司 | Static pressure test device of mechanical seal subassembly appraisal of reactor main pump |
| CN105351207A (en) * | 2015-12-15 | 2016-02-24 | 上海电气凯士比核电泵阀有限公司 | Charging pump |
| CN205354675U (en) * | 2015-12-18 | 2016-06-29 | 核动力运行研究所 | Experimental two, tertiary sealed analogue means of main pump hydraulic component static pressure |
| CN206523267U (en) * | 2016-12-30 | 2017-09-26 | 核动力运行研究所 | A kind of static pressure test apparatus for RCV pump mechanical sealing components |
Non-Patent Citations (2)
| Title |
|---|
| 丛国辉 等: "EPR(欧洲先进压水堆)上充泵的技术特点及鉴定要求分析" * |
| 于树阳 等: "上充泵试验台的研制" * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907098A (en) * | 2019-11-19 | 2020-03-24 | 长沙永昌车辆零部件有限公司 | Static water leakage experimental equipment and method for sealing strip |
| CN110907098B (en) * | 2019-11-19 | 2021-07-09 | 长沙永昌车辆零部件有限公司 | Static water leakage experimental equipment and method for sealing strip |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180710 |
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| RJ01 | Rejection of invention patent application after publication |