CN203705274U - Device for hydrostatic test of expansion engine unit thin-wall volute - Google Patents
Device for hydrostatic test of expansion engine unit thin-wall volute Download PDFInfo
- Publication number
- CN203705274U CN203705274U CN201420075045.0U CN201420075045U CN203705274U CN 203705274 U CN203705274 U CN 203705274U CN 201420075045 U CN201420075045 U CN 201420075045U CN 203705274 U CN203705274 U CN 203705274U
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- flange
- spiral case
- thin
- side frock
- hole
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- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 230000002706 hydrostatic effect Effects 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 6
- 238000005266 casting Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003556 assay Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 210000000683 abdominal cavity Anatomy 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Abstract
The utility model relates to a thin-wall component hydrostatic test device, in particular to a device for a hydrostatic test of an expansion engine unit thin-wall volute. The device comprises a volute internal supporting piece, a left end face tooling flange, a right end face tooling flange and a water inlet/outlet flange, wherein the left end face tooling flange and the right end face tooling flange are mounted on the thin-wall volute respectively; the volute internal supporting piece is positioned between the left end face tooling flange and the right end face tooling flange, and is in seal connection with the left end face tooling flange and the right end face tooling flange; the volute internal supporting piece adopts an internal hollow structure which is independent from an A cavity in the thin-wall volute; the water inlet/outlet flange is sealed and buckled at the air outlet of the water inlet/outlet flange, and is connected with a water source through a water pipe. The device solves the technical problem that deformation and pressure leakage are easily caused during the pressure testing process of the hydraulic pressure of a thin-wall volute of a large-scale expansion engine unit, and is applicable to the hydraulic pressure test of large-scale expansion engine unit and even large-scale air blowers and forced draught fans.
Description
Technical field
The utility model relates to thin-walled parts water test unit, specifically a kind of expansion unit thin-walled spiral case hydraulic testing device.
Background technology
Turbo-expander is that air separation equipment and rock gas (petroleum gas) liquification separation equipment and low temperature breaking equipment etc. obtain the necessary crucial portion of cold machine, is the heart that ensures equipment set stable operation.The design of turbo-expander, manufacturing representative country in the advanced level of petrochemical field, equipment manufacture, the economic benefit of its generation in the national economic development in occupation of very important status.Spiral case is the important component part of decompressor, is the critical component of gas flow warp in expansion unit, and material is steel-casting, and its bearing capacity directly affects effect of whole unit.The runner that spiral case forms plays key effect to the final performance of whole unit.Therefore, the manufacture of spiral case molded line requires very strict, does not allow any extraneous factor to impact spiral case molded line.
In addition, decompressor spiral case is casting spiral case, and wall thin (in 30mm).The hydraulic testing of decompressor spiral case is a very important link in casting process, whether its object there is defect everywhere in order to detect decompressor spiral case exactly, whether fault location has water to ooze out, whether the intensity everywhere to spiral case hydraulic testing inspection casting shell by technical requirement, there is distortion simultaneously.Conventionally, the hydraulic pressure pressure-measuring method of spiral case only considers spiral case to take suitable seal form with the extraneous part communicating, and the pressure-measuring method of this version is not taken the impact under pressure effect, spiral case molded line being caused into account.So the development of the water test unit of large-scale decompressor thin-walled spiral case is very necessary.
Utility model content
Problem yielding in large-scale expansion unit thin-walled spiral case hydraulic pressure pressure testing process in order to solve, easy pressure release, the purpose of this utility model is to provide a kind of safe and reliable expansion unit thin-walled spiral case hydraulic testing device.
The purpose of this utility model is achieved through the following technical solutions:
The utility model comprises spiral case internal support, left side frock flange, right side frock flange and intake-outlet flange, wherein left side frock flange and right side frock flange are arranged on respectively on thin-walled spiral case, described spiral case internal support, between left side frock flange and right side frock flange, and is connected with left side frock flange and right side frock flange seal; Described spiral case internal support is inner hollow structure, with the A chamber in described thin-walled spiral case be separate space; Described intake-outlet flange seal handle closes the air outlet place in thin-walled spiral case, and is connected with water source by water pipe.
Wherein: described spiral case internal support comprises location panel flange and sleeve, wherein location panel flange welding is in one end of sleeve, and the other end of described sleeve is openend; Described location panel flange is connected with right side frock flange seal, and the other end of described sleeve is connected with left side frock flange seal; The centre of the centre of described location panel flange and left side frock flange has through hole, the centre of described right side frock flange has the first threaded hole, one end of studs is threaded with described the first threaded hole, the other end through the through hole on location panel flange, left side frock flange, is locked by acorn nut successively;
Described spiral case internal support is open circles column type, and the wall thickness of sleeve is less than the wall thickness of described thin-walled spiral case, and the external peripheral surface of the described sleeve other end radially has the first seal groove, and has sleeve hole for hoist on the end face of the other end; On described location panel flange, be greater than 1/4 radius outer circumferential position and be evenly equipped with multiple through holes;
The outward flange of described right side frock flange is provided with seam, on the end face contacting, all has the second seal groove in the radial direction of seam and with described location panel flange; On the frock flange of described right side, along being circumferentially evenly equipped with second threaded hole corresponding with through hole on location panel flange, this second threaded hole is positioned at the periphery of described the first threaded hole; The outward flange of described right side frock flange along the circumferential direction also has the bolt hole being connected with thin-walled spiral case; On described location panel flange and sleeve, have hole for hoist;
The outward flange of described left side frock flange is provided with seam, has the 3rd seal groove in the radial direction of seam; The outward flange of described left side frock flange along the circumferential direction also has the bolt hole being connected with thin-walled spiral case;
The centre of described intake-outlet flange has the 3rd threaded hole, is closed, and is connected with water source by threeway and water pipe head, tensimeter handle; On the end face contacting with thin-walled spiral case at intake-outlet flange, have the 4th seal groove, the outward flange of described intake-outlet flange is provided with seam, and outward flange along the circumferential direction has the bolt hole being connected with thin-walled spiral case; On described intake-outlet flange, have hole for hoist.
Advantage of the present utility model and good effect are:
1. the utility model has solved technical matters yielding in large-scale expansion unit thin-walled spiral case hydraulic pressure pressure testing process, easy pressure release, for large-scale expansion unit and even large-scale drum, pressure fan water pressure testing are sought a practical way.
2. the utility model security in the process of the hydraulic testing, reliability are high, and sealing effectiveness is good.
3. the utility model is simple in structure, and easy accessibility is convenient to safeguard.
Brief description of the drawings
Figure 1A is the structural representation after the utility model and thin-walled spiral case are installed;
Figure 1B is right view of the present utility model in Figure 1A;
Fig. 2 A is the structure cut-open view of spiral case internal support in Figure 1A;
Fig. 2 B is that the A of Fig. 2 A is to view;
Fig. 2 C is the partial enlarged drawing at I place in Fig. 2 A;
Fig. 3 is the structure cut-open view of frock flange in left side in Figure 1A;
Fig. 4 is the structure cut-open view of frock flange in right side in Figure 1A;
Fig. 5 A is the structure cut-open view of intake-outlet flange in Figure 1A;
Fig. 5 B is that partial enlarged drawing is looked on Fig. 5 A left side;
Wherein: 1 is spiral case internal support, 2 is left side frock flange, and 3 is right side frock flange, 4 is intake-outlet flange, and 5 is thin-walled spiral case, and 6 is A chamber, 7 is B chamber, 8 is location panel flange, and 9 is sleeve, and 10 is the first seal groove, 11 is the first through hole, 12 is the second through hole, and 13 is location panel flange hole for hoist, and 14 is sleeve hole for hoist, 15 is the 3rd seal groove, 16 is third through-hole, and 17 is bolt hole, and 18 is the second seal groove, 19 is the first threaded hole, 20 is the second threaded hole, and 21 is the 3rd threaded hole, and 22 is the 4th seal groove.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1A, Figure 1B, the utility model comprises spiral case internal support 1, left side frock flange 2, right side frock flange 3 and intake-outlet flange 4, wherein left side frock flange 2 is arranged on respectively on thin-walled spiral case 5 with right side frock flange 3, spiral case internal support 1, between left side frock flange 2 and right side frock flange 3, and is tightly connected with left side frock flange 2 and right side frock flange 3.Intake-outlet flange 4 seals closing the air outlet place in thin-walled spiral case 5, and is connected with water source by water pipe.
As shown in Fig. 2 A～2C, spiral case internal support 1 is the weldment of Q235A material, is open circles column type, inner hollow, comprises location panel flange 8 and sleeve 9, and location panel flange 8 is welded on one end of sleeve 9, and the other end of sleeve 9 is openend; Location panel flange 8 is tightly connected with right side frock flange 3, and the other end of sleeve 9 and left side frock flange 2 are tightly connected.The end face that location panel flange 8 contacts with right side frock flange 3 and the end face of sleeve 9 one end are coplanar, the centre of location panel flange 8 has the first through hole 11, along the circumferential direction being evenly equipped with multiple location panel flange hole for hoist 13(the present embodiment in the periphery of the first through hole 11 is four), and be greater than 1/4 radius outer circumferential position to be evenly equipped with multiple second through hole 12(the present embodiment be seven in the periphery of this location panel flange hole for hoist 13).The wall thickness of sleeve 9 is less than the wall thickness of thin-walled spiral case 5, can effectively verify that thin-walled spiral case 5 holds hydraulic pressure ability; The external peripheral surface of sleeve 9 other ends radially has the first seal groove 10, and symmetry has line between 14, two sleeve hole for hoist 14 centers of two the sleeve holes for hoist center through location panel flange 8 on the end face of the other end.
As shown in Figure 4, right side frock flange 3 is Q235A material, in the middle of it, has the first threaded hole 19, and the outward flange of right side frock flange 3 is provided with seam, on the end face contacting, all has the second seal groove 18 in the radial direction of seam and with location panel flange 8.On right side frock flange 3, along being circumferentially evenly equipped with multiple the second threaded holes 20, the quantity of this second threaded hole 20 is identical with the quantity of the second through hole 12 on location panel flange 8, and corresponding one by one, and this second threaded hole 20 is positioned at the periphery of the first threaded hole 19.The outward flange of right side frock flange 3 along the circumferential direction also has the bolt hole 17 being connected with thin-walled spiral case 5.
As shown in Figure 3, left side frock flange 2 is similarly Q235A material, and outward flange is provided with seam, has the 3rd seal groove 15 in the radial direction of seam, and the centre of left side frock flange 2 has third through-hole 16.The outward flange of left side frock flange 2 along the circumferential direction also has the bolt hole 17 being connected with thin-walled spiral case 5.
As shown in Fig. 5 A, Fig. 5 B, the centre of intake-outlet flange 4 has the 3rd threaded hole 21, is closed, and is connected with water source by threeway and water pipe head, tensimeter handle.On the end face contacting with thin-walled spiral case 5 at intake-outlet flange 4, have the 4th seal groove 22, the outward flange of intake-outlet flange 4 is provided with seam, and outward flange along the circumferential direction has the bolt hole 17 being connected with thin-walled spiral case 5.On intake-outlet flange 4, also have flange hole for hoist 22.
Installation of the present utility model and principle of work are:
In hydraulic testing process, first right side frock flange 3 and thin-walled spiral case 5 use bolt passing through bolt hole 17 are carried out to handle and close, will in the second seal groove 18 of stop portion, place O-ring seal therebetween, prevent from cutting off closing O-ring seal in process.Before placing spiral case internal support 1, in the second seal groove 18 of right side frock flange 3 end faces, place O-ring seal, thereafter after the O-ring seal in the first seal groove 10 on the sleeve of spiral case internal support 19 being installed, pass the second through hole 12, be threaded with the second threaded hole 20 on right side frock flange 3 with bolt again, carry out handle and close.When left side frock flange 2 is installed, first in the 3rd seal groove 15 of stop portion, place O-ring seal, then left side frock flange 2 and thin-walled spiral case 5 use bolt passing through bolt hole 17 are carried out to handle and close.First threaded hole 19 at frock flange 3 centers, right side carries out handle with the third through-hole 16 use studs at frock flange 2 centers, left side and closes, one end of studs is threaded with the first threaded hole 19, the other end is successively through the first through hole 11 on location panel flange 8, third through-hole 16 on left side frock flange 2, the locking of external application acorn nut, spiral case internal support 1 is with left, right side frock flange 2, 3 form B chamber 7, with the abdominal cavity (A chamber 6) in thin-walled spiral case 5 be separate space, the impact of the self gravitation of water on thin-walled spiral case 5 in minimizing Hydraulic Process.Finally intake-outlet flange 4 is carried out to handle with the air outlet of thin-walled spiral case 5 and close, connect tensimeter, water pipe at the 3rd threaded hole 21 places, open water source and get final product pressure testing.
Pour into tap water by the water filling port in intake-outlet flange 4, water is full of in whole A chamber 6, along with water level rises, after gas is emptying, the handle of intake-outlet flange 4 is closed to bolt tightening, continue to strengthen hydraulic pressure pressure, until designing requirement, after pressurize in 30 minutes, inspection has or not leakage point, can confirm that without leakage point pressure testing is qualified.
In the time carrying out the hydraulic testing, sealing is very important, be mainly to adopt suitable seal form to seal all each portions communicating with the external world, carry out the reliability of the guarantee hydraulic testing, correctness to ensure to be under an absolute airtight environment in the time carrying out the hydraulic testing.Wherein the seal area of thin-walled spiral case 5 both sides adopts end face frock flange bolt closing, both ends of the surface respectively have two seals cushion rubber to carry out both sides butt-end packing, because inside under thin-walled spiral case working condition exists internal support, if only consider while carrying out the hydraulic testing both sides end face good seal, inside does not have the strong point, probably exist spiral case to break phenomenon, therefore need to increase necessary internal support at spiral case inwall.Consider in the time that in spiral case, hydraulic pressure increases, may there is leakage to a certain degree in the O-ring seal of internal support cylindrical and thin-walled spiral case inwall, at this moment the second O-ring seal of thin-walled spiral case end will play the effect of secondary seal, the water spilling is after twice pressure release, interior external pressure reaches balance, water will can not be seeped into spiral case outside, play the effect of sealing.Internal support structure adopts two welding structures, location panel flange 8 and sleeve 9 welded structures, the cylindrical of sleeve 8 and thin-walled spiral case inwall adopt clearance fit, and adopting rubber sealing near other end endface position, location panel flange 8 will adopt bolt closing with right side frock flange 3, the object that reaches bracket sleeve tube location, prevents that sleeve from inside, vibration occurring.
Test findings of the present utility model is as follows:
1. target: complete large-scale decompressor thin-walled spiral case pressure testing checking.
2. assay analysis:
| Pressure testing design pressure | Pressure testing actual pressure | Dwell time | There is ne-leakage | Assay |
| 7.8bar | 7.8bar | 30 minutes | Nothing | Qualified |
The utility model can be applied to expansion unit thin-walled spiral case hydraulic testing process completely, and its security, science have obtained sufficient checking, efficiently solves the technical barrier of thin-walled spiral case hydraulic testing flexible type, easy pressure release.
Claims (9)
1. an expansion unit thin-walled spiral case hydraulic testing device, it is characterized in that: comprise spiral case internal support (1), left side frock flange (2), right side frock flange (3) and intake-outlet flange (4), wherein left side frock flange (2) is arranged on respectively on thin-walled spiral case (5) with right side frock flange (3), described spiral case internal support (1) is positioned between left side frock flange (2) and right side frock flange (3), and is tightly connected with left side frock flange (2) and right side frock flange (3); Described spiral case internal support (1) is inner hollow structure, with the A chamber (6) in described thin-walled spiral case (5) be separate space; Described intake-outlet flange (4) seals closing in the air outlet place of thin-walled spiral case (5), and is connected with water source by water pipe.
2. by expansion unit thin-walled spiral case hydraulic testing device claimed in claim 1, it is characterized in that: described spiral case internal support (1) comprises location panel flange (8) and sleeve (9), wherein location panel flange (8) is welded on one end of sleeve (9), and the other end of described sleeve (9) is openend; Described location panel flange (8) is tightly connected with right side frock flange (3), and the other end of described sleeve (9) and left side frock flange (2) are tightly connected.
3. by expansion unit thin-walled spiral case hydraulic testing device claimed in claim 2, it is characterized in that: the centre of the centre of described location panel flange (8) and left side frock flange (2) has through hole, the centre of described right side frock flange (3) has the first threaded hole (19), one end of studs is threaded with described the first threaded hole (19), the other end through the through hole on location panel flange (8), left side frock flange (2), is locked by acorn nut successively.
4. by the expansion unit thin-walled spiral case hydraulic testing device described in claim 2 or 3, it is characterized in that: described spiral case internal support (1) is open circles column type, the wall thickness of sleeve (9) is less than the wall thickness of described thin-walled spiral case (5), the external peripheral surface of described sleeve (9) other end radially has the first seal groove (10), and on the end face of the other end, has sleeve hole for hoist (14); On described location panel flange (8), be greater than 1/4 radius outer circumferential position and be evenly equipped with multiple through holes.
5. by expansion unit thin-walled spiral case hydraulic testing device claimed in claim 4, it is characterized in that: the outward flange of described right side frock flange (3) is provided with seam, on the end face contacting in the radial direction of seam and with described location panel flange (8), all have the second seal groove (18); Described right side frock flange (3) is upper along being circumferentially evenly equipped with second threaded hole (20) corresponding with the upper through hole of location panel flange (8), and this second threaded hole (20) is positioned at the periphery of described the first threaded hole (19); The outward flange of described right side frock flange (3) along the circumferential direction also has the bolt hole (17) being connected with thin-walled spiral case (5).
6. by the expansion unit thin-walled spiral case hydraulic testing device described in claim 2 or 3, it is characterized in that: on described location panel flange (8) and sleeve (9), have hole for hoist.
7. by the expansion unit thin-walled spiral case hydraulic testing device described in claim 1,2 or 3, it is characterized in that: the outward flange of described left side frock flange (2) is provided with seam, have the 3rd seal groove (15) in the radial direction of seam; The outward flange of described left side frock flange (2) along the circumferential direction also has the bolt hole (17) being connected with thin-walled spiral case (5).
8. by the expansion unit thin-walled spiral case hydraulic testing device described in claim 1,2 or 3, it is characterized in that: the centre of described intake-outlet flange (4) has the 3rd threaded hole (21), close, and be connected with water source by threeway and water pipe head, tensimeter handle; On the end face contacting with thin-walled spiral case (5) at intake-outlet flange (4), have the 4th seal groove (22), the outward flange of described intake-outlet flange (4) is provided with seam, and outward flange along the circumferential direction has the bolt hole (17) being connected with thin-walled spiral case (5).
9. by expansion unit thin-walled spiral case hydraulic testing device claimed in claim 8, it is characterized in that: on described intake-outlet flange (4), have hole for hoist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420075045.0U CN203705274U (en) | 2014-02-20 | 2014-02-20 | Device for hydrostatic test of expansion engine unit thin-wall volute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420075045.0U CN203705274U (en) | 2014-02-20 | 2014-02-20 | Device for hydrostatic test of expansion engine unit thin-wall volute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203705274U true CN203705274U (en) | 2014-07-09 |
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ID=51055695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420075045.0U Expired - Lifetime CN203705274U (en) | 2014-02-20 | 2014-02-20 | Device for hydrostatic test of expansion engine unit thin-wall volute |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203705274U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927573A (en) * | 2016-04-29 | 2016-09-07 | 沈阳透平机械股份有限公司 | Water pressure testing method and device of ultraheavy and ultralarge compressor shell |
| CN107655746A (en) * | 2017-11-02 | 2018-02-02 | 山东交通学院 | A kind of dynamic characteristic test apparatus of spiral case inner chamber pressure-bearing |
| CN108871679A (en) * | 2018-08-17 | 2018-11-23 | 中船动力有限公司 | Marine diesel components water pressure test system and method |
-
2014
- 2014-02-20 CN CN201420075045.0U patent/CN203705274U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927573A (en) * | 2016-04-29 | 2016-09-07 | 沈阳透平机械股份有限公司 | Water pressure testing method and device of ultraheavy and ultralarge compressor shell |
| CN107655746A (en) * | 2017-11-02 | 2018-02-02 | 山东交通学院 | A kind of dynamic characteristic test apparatus of spiral case inner chamber pressure-bearing |
| CN108871679A (en) * | 2018-08-17 | 2018-11-23 | 中船动力有限公司 | Marine diesel components water pressure test system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |