CN202631015U - Nuclear power flow measurement device for - Google Patents
Nuclear power flow measurement device for Download PDFInfo
- Publication number
- CN202631015U CN202631015U CN 201220274934 CN201220274934U CN202631015U CN 202631015 U CN202631015 U CN 202631015U CN 201220274934 CN201220274934 CN 201220274934 CN 201220274934 U CN201220274934 U CN 201220274934U CN 202631015 U CN202631015 U CN 202631015U
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- pipe
- throttling element
- internal diameter
- sleeve pipe
- measuring tube
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Abstract
The utility model discloses a nuclear power flow measurement device, comprising a first measurement pipe, a second measurement pipe, a throttling element, a first voltage-leading pipe and a second voltage-leading pipe, wherein a first casing pipe integrally extends on the peripheral surface between the two ends of the first measurement pipe and is coaxial with the first measurement pipe; a second casing pipe integrally extends on the peripheral surface between the two ends of the second measurement pipe and is coaxial with the second measurement pipe; the first casing pipe orderly comprises a voltage sampling region, a throttling element mounting region and an assembling region along the axial direction; the first voltage-leading pipe is welded on the peripheral surface of the voltage sampling region in a sealing manner and is communicated with the first casing pipe; and the second voltage-leading pipe is welded on the peripheral surface of the second casing pipe in a sealing manner and is communicated with the second casing pipe. The ring-shaped voltage sampling device built in the nuclear power flow measurement device is processed from an integral forging piece, and the measurement pipes and the ring-shaped voltage sampling device are in an integral structure form, so that the defect of stress concentration caused by multiple welding lines is avoided. Moreover, the nuclear power flow measurement device is simple in structure, rational in design and excellent in practicability.
Description
Technical field
The utility model relates to a kind of restriction device, is specifically related to a kind of nuclear power and uses flow measurement device.
Background technology
The tradition differential pressure flowmeter is in HTHP occasion and high-risk medium occasion; General integral body all adopts Type of Welding; Because the welding position all designs at the throttling element place; So restricting element all can produce distortion in various degree after receiving welding heat, this distortion can not be repaired, and finally causes the measuring accuracy of flowmeter to reduce.
And because fore-and-aft survey pipe and pressure obtaning device all are to adopt Type of Welding; So intensive in the very little scope of whole flowmeter have three road weld seams; Cause the stress of device too concentrated, the bulk strength that this will influence flowmeter greatly finally causes shortening serviceable life even directly influencing security; This requires to reach equipment life in nuclear power industry under the situation in 60 years, and this version can not adapt to that the special security performance of nuclear power industry requires.
The utility model content
The purpose of the utility model is to overcome the defective of prior art, provides a kind of nuclear power to use flow measurement device, and the stress that said nuclear power can avoid multiple-pass weld to bring with flow measurement device is concentrated defective.
For realizing above-mentioned purpose, the technical scheme of the utility model is that a kind of nuclear power of design is used flow measurement device, comprises first measuring tube, second measuring tube, throttling element, first pressure guiding pipe and second pressure guiding pipe; First measuring tube one on the outer peripheral face between its two ends is extended with first sleeve pipe with its concentric; Second measuring tube one on the outer peripheral face between its two ends is extended with second sleeve pipe with its concentric; First sleeve pipe comprises pressure district, throttling element installing zone and assembly section vertically successively, and the pressure district is near the joint portion of first measuring tube and first sleeve pipe, and the openend of first sleeve pipe is positioned at the assembly section; The internal diameter in pressure district is greater than the external diameter of first measuring tube, and seal weld is connected to first pressure guiding pipe on the outer peripheral face in pressure district, and first pressure guiding pipe and first sleeve pipe connect; The internal diameter of throttling element installing zone is greater than the internal diameter in pressure district, the outer peripheral face interference fit of the inner peripheral surface of throttling element installing zone and throttling element, and the axial width of throttling element installing zone is smaller or equal to the axial width of throttling element; The internal diameter of assembly section is more than or equal to the internal diameter of throttling element installing zone, the outer peripheral face interference fit of the inner peripheral surface of assembly section and second sleeve pipe, the outer peripheral face sealing welding of the openend of assembly section and second sleeve pipe; One end face of throttling element is near the step of pressure district and throttling element installing zone intersection; The other end is near the open end of second sleeve pipe; And there is axial spacing in throttling element with the openend of first measuring tube and second measuring tube respectively between first measuring tube and second measuring tube; Seal weld is connected to second pressure guiding pipe on the outer peripheral face of second sleeve pipe, and second pressure guiding pipe and second sleeve pipe connect.
Preferably, said first pressure guiding pipe is provided with pressure measuring valve.
Preferably, said second pressure guiding pipe is provided with pressure measuring valve.
Preferably, the internal diameter of said throttling element installing zone equals the external diameter of throttling element.
Preferably, the internal diameter of said assembly section equals the external diameter of second sleeve pipe.
Preferably, the internal diameter of said assembly section is greater than the internal diameter of throttling element installing zone.
Preferably, the internal diameter of said first measuring tube equals the internal diameter of second measuring tube.
Preferably, the internal diameter in said pressure district equals the internal diameter of second sleeve pipe.
Preferably, the openend of said assembly section is provided with bevel for welding.
Preferably, said first pressure guiding pipe and second pressure guiding pipe are parallel to each other.
Said measuring tube (first, second measuring tube) one on the outer peripheral face between its two ends is extended with the sleeve pipe (first, second sleeve pipe) with its concentric; The inner peripheral surface looping pressure obtaning device of the outer peripheral face of measuring tube and sleeve pipe; Measuring tube and annular pressure obtaning device are the monolithic construction form; Processed by whole forging, fundamental purpose is that the stress of avoiding multiple-pass weld to bring is concentrated defective.
The integral annular pressure obtaning device of band measuring tube has structurally carried out particular design, makes it avoid directly the welding at the throttling element place and causes the throttling element micro-deformation and influence measuring accuracy that this version further is guaranteed measuring accuracy.Because the throttling element bore size receives welding influence, thus overall measurement accuracy be improved greatly, so obtained using widely in the occasion of nuclear power industry and high measuring accuracy.
Device body does not have any movable member; It directly adopts welding to get final product with being connected of external pipe; This external apparatus frequent starting and the bigger occasion of vibrations can be guaranteed to become an integral body with the pipeline strong bonded, make life-span of this device and shock strength reach optimum condition.
The advantage and the beneficial effect of the utility model are: provide a kind of nuclear power to use flow measurement device; Its built-in annular pressure obtaning device is processed by whole forging; Measuring tube and annular pressure obtaning device are the monolithic construction form, and the stress that can avoid multiple-pass weld to bring is concentrated defective.And this nuclear power is simple in structure with flow measurement device, and is reasonable in design, has good practicability.
Compare common high pressure welded type differential pressure flowmeter, the utility model:
A. measuring accuracy is high:
Because bore size does not receive the welding influence, so overall measurement accuracy is improved greatly, reached 0.5 grade through the flowmeter accuracy of testing this kind form, repeatability reaches 0.05%.
B. security is good:
Band measuring tube integral annular pressure obtaning device is processed by whole forging, and measuring tube and annular pressure obtaning device are the monolithic construction form, and the stress of avoiding the device multiple-pass weld to bring is concentrated defective, and security is guaranteed.
C. the good life-span of shock resistance is long:
Install no any movable member, directly adopt welding to get final product with connecting of pipeline, this can guarantee to become an integral body with the pipeline strong bonded at equipment frequent starting and the bigger occasion of vibrations, makes the life-span of device and shock strength reach optimum condition.
Description of drawings
Fig. 1 is the synoptic diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the embodiment of the utility model is further described.Following examples only are used for more clearly explaining the technical scheme of the utility model, and can not limit the protection domain of the utility model with this.
The technical scheme of the utility model practical implementation is:
A kind of nuclear power is used flow measurement device, comprises first measuring tube 1, second measuring tube 2, throttling element 3, first pressure guiding pipe 4 and second pressure guiding pipe 5; First measuring tube 1 one on the outer peripheral face between its two ends is extended with first sleeve pipe 6 with its concentric; Second measuring tube 2 one on the outer peripheral face between its two ends is extended with second sleeve pipe 7 with its concentric; First sleeve pipe 6 comprises pressure district 8, throttling element installing zone 9 and assembly section 10 vertically successively, and pressure district 8 is near the joint portion of first measuring tube 1 and first sleeve pipe 6, and the openend of first sleeve pipe 6 is positioned at assembly section 10; The internal diameter in pressure district 8 is greater than the external diameter of first measuring tube 1, and seal weld is connected to first pressure guiding pipe, 4, the first pressure guiding pipes 4 and 6 perforations of first sleeve pipe on the outer peripheral face in pressure district 8; The internal diameter of throttling element installing zone 9 is greater than the internal diameter in pressure district 8, the outer peripheral face interference fit of the inner peripheral surface of throttling element installing zone 9 and throttling element 3, and the axial width of throttling element installing zone 9 equals the axial width of throttling element 3; The internal diameter of assembly section 10 is greater than the internal diameter of throttling element installing zone 9, the outer peripheral face interference fit of the inner peripheral surface of assembly section 10 and second sleeve pipe 7, the outer peripheral face sealing welding of the openend of assembly section 10 and second sleeve pipe 7; One end face of throttling element 3 is near the step of pressure district 8 with throttling element installing zone 9 intersections; The other end is near the open end of second sleeve pipe 7; And there is axial spacing in throttling element 3 with the openend of first measuring tube 1 and second measuring tube 2 respectively between first measuring tube 1 and second measuring tube 2; Seal weld is connected to second pressure guiding pipe, 5, the second pressure guiding pipes 5 and 7 perforations of second sleeve pipe on the outer peripheral face of second sleeve pipe 7.Said first pressure guiding pipe 4 is provided with pressure measuring valve.Said second pressure guiding pipe 5 is provided with pressure measuring valve.The internal diameter of said throttling element installing zone 9 equals the external diameter of throttling element 3.The internal diameter of said assembly section 10 equals the external diameter of second sleeve pipe 7.The internal diameter of said first measuring tube 1 equals the internal diameter of second measuring tube 2.The internal diameter in said pressure district 8 equals the internal diameter of second sleeve pipe 7.The openend of said assembly section 10 is provided with bevel for welding.Said first pressure guiding pipe 4 and second pressure guiding pipe 5 are parallel to each other.
The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (10)
1. a nuclear power is used flow measurement device, it is characterized in that, comprises first measuring tube, second measuring tube, throttling element, first pressure guiding pipe and second pressure guiding pipe; First measuring tube one on the outer peripheral face between its two ends is extended with first sleeve pipe with its concentric; Second measuring tube one on the outer peripheral face between its two ends is extended with second sleeve pipe with its concentric; First sleeve pipe comprises pressure district, throttling element installing zone and assembly section vertically successively, and the pressure district is near the joint portion of first measuring tube and first sleeve pipe, and the openend of first sleeve pipe is positioned at the assembly section; The internal diameter in pressure district is greater than the external diameter of first measuring tube, and seal weld is connected to first pressure guiding pipe on the outer peripheral face in pressure district, and first pressure guiding pipe and first sleeve pipe connect; The internal diameter of throttling element installing zone is greater than the internal diameter in pressure district, the outer peripheral face interference fit of the inner peripheral surface of throttling element installing zone and throttling element, and the axial width of throttling element installing zone is smaller or equal to the axial width of throttling element; The internal diameter of assembly section is more than or equal to the internal diameter of throttling element installing zone, the outer peripheral face interference fit of the inner peripheral surface of assembly section and second sleeve pipe, the outer peripheral face sealing welding of the openend of assembly section and second sleeve pipe; One end face of throttling element is near the step of pressure district and throttling element installing zone intersection; The other end is near the open end of second sleeve pipe; And there is axial spacing in throttling element with the openend of first measuring tube and second measuring tube respectively between first measuring tube and second measuring tube; Seal weld is connected to second pressure guiding pipe on the outer peripheral face of second sleeve pipe, and second pressure guiding pipe and second sleeve pipe connect.
2. nuclear power according to claim 1 is used flow measurement device, it is characterized in that, said first pressure guiding pipe is provided with pressure measuring valve.
3. nuclear power according to claim 1 is used flow measurement device, it is characterized in that, said second pressure guiding pipe is provided with pressure measuring valve.
4. nuclear power according to claim 1 is used flow measurement device, it is characterized in that, the internal diameter of said throttling element installing zone equals the external diameter of throttling element.
5. nuclear power according to claim 1 is used flow measurement device, it is characterized in that, the internal diameter of said assembly section equals the external diameter of second sleeve pipe.
6. nuclear power according to claim 1 is used flow measurement device, it is characterized in that, the internal diameter of said assembly section is greater than the internal diameter of throttling element installing zone.
7. nuclear power according to claim 1 is used flow measurement device, it is characterized in that, the internal diameter of said first measuring tube equals the internal diameter of second measuring tube.
8. nuclear power according to claim 1 is used flow measurement device, it is characterized in that, the internal diameter in said pressure district equals the internal diameter of second sleeve pipe.
9. nuclear power according to claim 1 is used flow measurement device, it is characterized in that, the openend of said assembly section is provided with bevel for welding.
10. nuclear power according to claim 1 is used flow measurement device, it is characterized in that, said first pressure guiding pipe and second pressure guiding pipe are parallel to each other.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220274934 CN202631015U (en) | 2012-06-11 | 2012-06-11 | Nuclear power flow measurement device for |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201220274934 CN202631015U (en) | 2012-06-11 | 2012-06-11 | Nuclear power flow measurement device for |
Publications (1)
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CN202631015U true CN202631015U (en) | 2012-12-26 |
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CN 201220274934 Expired - Fee Related CN202631015U (en) | 2012-06-11 | 2012-06-11 | Nuclear power flow measurement device for |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104535130A (en) * | 2014-10-27 | 2015-04-22 | 江阴市节流装置厂有限公司 | High-temperature and high-pressure corrugated self-balancing flow meter |
CN112113623A (en) * | 2020-09-22 | 2020-12-22 | 衢州市特种设备检验中心 | Novel ring chamber pressure-taking welded orifice plate flowmeter |
-
2012
- 2012-06-11 CN CN 201220274934 patent/CN202631015U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104535130A (en) * | 2014-10-27 | 2015-04-22 | 江阴市节流装置厂有限公司 | High-temperature and high-pressure corrugated self-balancing flow meter |
CN104535130B (en) * | 2014-10-27 | 2018-01-30 | 江阴市节流装置厂有限公司 | HTHP ripple self-balancing flowmeter |
CN112113623A (en) * | 2020-09-22 | 2020-12-22 | 衢州市特种设备检验中心 | Novel ring chamber pressure-taking welded orifice plate flowmeter |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20170611 |