CN101275587B - Centrifugal pump comprising a spiral shape mounting arrangement and composite structure comprising centrifugal pump - Google Patents
Centrifugal pump comprising a spiral shape mounting arrangement and composite structure comprising centrifugal pump Download PDFInfo
- Publication number
- CN101275587B CN101275587B CN200810100379.8A CN200810100379A CN101275587B CN 101275587 B CN101275587 B CN 101275587B CN 200810100379 A CN200810100379 A CN 200810100379A CN 101275587 B CN101275587 B CN 101275587B
- Authority
- CN
- China
- Prior art keywords
- cap assembly
- cup
- shaped parts
- shaped
- centrifugal pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002131 composite material Substances 0.000 title claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 10
- 238000007789 sealing Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The above mentioned invention is related to a centrifugal pump, comprising an outer casing, an inner casing contained in the outer casing, an impeller rotatably supported around a central axis within the inner casing, an inlet concentrically arranged with respect to the impeller as well as a tangential outlet, said outer casing comprising a cup shaped part, a cover part as well as a mounting arrangement by means of which said cover part is mounted onto the cup shaped part, wherein the mounting arrangement comprises mounting means with co-acting spiral shapes associated with the cup shaped part and of the cover part, in such a way that a mutual rotation of mounting means around the axis in one direction provides for a mutually fixed position of said parts, and a mutual rotation of mounting means around the axis in the opposite direction provides for a mutually detached position of said parts.
Description
Technical field
The present invention relates to a kind of centrifugal pump, it comprises shell, be contained in inner casing in shell, around central axis be rotatably supported on impeller in inner casing, with entrance and tangentially outlet that impeller is arranged with one heart, described shell comprises cup-shaped parts, cap assembly and described cap assembly is installed to the erecting device on cup-shaped parts.
Background technique
Such centrifugal pump is well-known.Its cup-shaped parts and cap assembly are usually included in the mounting flange of its periphery.These flanges are provided with hole, and bolt inserts in these holes cup-shaped parts and cap assembly are clamped mutually.Consider in the height being applied on shell and press and expection load, need a considerable amount of bolts to connect and make reliably each several part be connected to each other.But if centrifugal pump needs maintenance, particularly its impeller or inner casing, this has just produced a shortcoming.Described inner casing is for example in the impact of the silt of high pressure and rapid transit or the height abrasion that mineral material brings.Therefore, inner casing needs to change frequently.For the impeller and the adjacent impeller that are also in same abrasion environment, wearing plate is in the enclosure installed, is needed equally to change.In order to approach these parts, shell must be opened, and this means that all bolt connections will remove.This is effort work consuming time.
Summary of the invention
Therefore, the object of this invention is to provide a kind of before the centrifugal pump of described type, it has advantages of fast and is easy to approach the parts in shell.Described object is achieved in that erecting device comprises having synergistic spiral-shaped erection unit, described erection unit is associated with cup-shaped parts and with cap assembly by this way, that is: described erection unit rotates mutually around axis in one direction, the position that interfixes that causes described cup-shaped parts and described cap assembly, described erection unit rotates mutually around axis in the opposite direction, causes the mutual removed position of described cup-shaped parts and described cap assembly.According to erection unit of the present invention, can realize in many ways.According to the first possibility, the edge that the spiral-shaped spirality being included on one of cup-shaped parts and cap assembly is radially extended, and accordingly at described parts, inwardly there is radially the spirality profile towards groove on another.
According to centrifugal pump of the present invention, utilization be the general shape of erection unit, its shape has spinning behaviour.This spinning behaviour is that the special function of centrifugal pump is intrinsic, this means, erecting device can be included in the design of existing centrifugal pump easily.Rely on spiral-shaped steepness (steepness), cup-shaped parts and cap assembly can discharge each other after the mutual rotation more or less of erection unit.
Further, spiral-shaped can be on the circumference of cup-shaped parts and cap assembly the various angles of extend through.In a preferred embodiment, spiral-shaped can be, for example in 3/4ths of cup-shaped parts circumference and cap assembly circumference part, extend.Therefore, when spiral-shaped, be disengaged, cup-shaped parts and cap assembly can remove easily mutually.Preferably, the cup-shaped parts outside spiral-shaped and the circumferential section of cap assembly comprise additional erection unit, for example bolt.
Consider that shell generally includes this situation of the outlet of tangent direction orientation, can in the extended spot formation of corresponding spiral-shaped part, there is easily edge and the profile of straight portion.The outlet of the tangent direction orientation of these straight portion latch housings of cup-shaped parts and cap assembly.Especially, described straight portion and corresponding spiral-shaped part are tangent.
Spiral-shapedly need on the whole circumference of cup-shaped parts and cap assembly, not extend.In this case, from cup-shaped parts, another part is removed, become very convenient.Therefore in this embodiment, in the part of the circumference of cup-shaped parts and cap assembly, there is no interconnecting between edge and profile.Yet outer pump case should seal to bear inner overpressure completely, therefore, the circumferential section of cup-shaped parts extending between corresponding straight portion and spiral part and the circumferential section of cap assembly have bolt and are connected.
For the object of the process that is conducive to further cap assembly be removed from cup-shaped parts, edge length is in a circumferential direction greater than profile length in a circumferential direction.Therefore, cap assembly, particularly its edge, conventionally completely supported, and irrelevant with respect to the rotational position of cup-shaped parts with cap assembly.
When the control apparatus of the mutual rotation of controlling cup-shaped parts and cap assembly is provided, obtain the further improvement of the process of the cup-shaped parts of assembly and disassembly and cap assembly.By starting these control apparatuss, this connects required hand labour and can exempt.Control apparatus can be accomplished in several ways, but preferably, and control apparatus comprises the gear being rotatably installed on one of cup-shaped parts and cap assembly, and at described parts the tooth bar with respect to axis bending on another.
But as mentioned above, erection unit does not need to form cup-shaped parts and cap assembly one-piece element.Therefore, according to alternative embodiment, erection unit can comprise installing ring, in this embodiment, on installing ring and cup-shaped parts and cap assembly have on one of at least spiral-shaped.In this embodiment, the connection of cup-shaped parts and cap assembly and taking apart, can and have other spiral-shaped parts or a plurality of parts are realized by this ring of mutual rotation.
Connect or take step apart and need a certain amount of rotation; During spiral section on the spiral-shaped continuous part that comprises a plurality of circumference that extend in erection unit, this rotating amount can reduce.
When erection unit comprises radially outward extendingly while having to the edge in the tapered cross section of narrow end and the groove of respective shapes, can improve connection or the unpack procedure of parts.
Cup-shaped parts and the cap assembly described before, its size depends on the volume of pump, quality is conventionally very large.The method of before describing, for example the control apparatus of rotary cover parts, makes to operate these heavy parts and becomes convenient.But in assembly and disassembly process, further wish by rights with respect to cup-shaped parts support cover parts.In this connects, preferably provide support member, cap assembly is rotatably supported on supporting member around axis, and in order to obtain the object of required supporting member stability, this member can be connected on shell.
Cap assembly is supported about supporting member in the following manner.Described cap assembly has the fan-shaped edge of bottom support, and supporting member comprises and makes bottom support eccentric circular ring be slidably received in its inner bottom support scalloped profile.Alternatively, roller is set and rotatably supports lower part.In specific embodiment, supporting member comprises two A shape frameworks, and its carrying is provided with the annular sector part of slit, and another part comprises pin, and each pin is slidably received in corresponding slit.In addition, supporting member can reciprocatingly move with respect to shell with automated manner.So further be conducive to the operation of cap assembly.When this cap assembly is when cup-shaped parts disassemble and be supported on supporting member, cap assembly can move away from cup-shaped parts by beared part.Like this, can easily approach interior pump case and impeller.Equally, when assembling cap assembly and cup-shaped parts, also can utilize supporting member.Similarly, described supporting member also works in the process of changing wearing plate.
As already mentioned previously, cap assembly quality is large, is mainly because it is constructed with Steel material.In order to further facilitate the operation of this cap assembly, it can comprise plastic materials.In order to obtain the rigidity of required this plastic materials cap assembly, wherein at least one stiffening ring can be set.Equally, cup-shaped parts can comprise plastic materials.
Accompanying drawing explanation
Embodiment with reference to centrifugal pump shown in the drawings further describes the present invention.
Shown in Fig. 1 is the embodiment's of pump in accordance with the present invention the view of suction side.
Shown in Fig. 2 is according to the section of II-II in Fig. 1.
Shown in Fig. 3 is the perspective view of pump.
Shown in Fig. 4 is the perspective view of the pump of cover removal parts.
Shown in Fig. 5 is according to V-V in Fig. 6 more vast scale and the more detailed section that shows cap assembly.
Shown in Fig. 6 is the interior views of cover.
Shown in Fig. 7 is the section of the cup-shaped parts of shell.
Shown in Fig. 8 is about the detail drawing of magnification ratio of the VIII of sealing in Fig. 2.
Shown in Fig. 9 is about the detail drawing of the sealing in Fig. 8 while removing cap assembly.
Shown in Figure 10 is the embodiment that erection unit comprises ring.
Shown in Figure 11 is by the edge of erection unit and the section of groove.
Embodiment
Centrifugal pump as Figure 1-4 comprises shell 1, and its inside accommodates as Fig. 2 and the visible inner casing 2 of Fig. 4.Described inner casing 2 has suction entrance 3, and the outlet 4 of tangential location.The impeller 5 with this entrance 3 is supported on inner casing 2 inside, by live axle 6, around axis 24, rotates.Described live axle 6 is rotatably installed in (not shown) on supporting element successively, and is connected to drive motor (not shown).
Similarly, shell 1 has the shell inlet opening 7 coaxial with the entrance 3 of impeller 5.Opposite in shell inlet opening 7, shell 1 has the axis hole 8 that live axle 6 extends through.By covering 9, live axle 6 is with respect to shell 1 sealing.Further, shell 1 has the housing outlet hole 10 of tangential location, and it is coaxial with the outlet 4 of inner casing 2.Supporting element 11 is installed to be for example arranged on shell 1, to support pump, on the deck of ship.In pipe 12(figure, only show least significant end) be positioned apart from centrifugal pump 1 a distance.By intervalve part (not shown), described pipe 12 can be connected to the inlet opening 7 of shell 1, as shown in Figure 4, is connected to especially suction nozzle with battery unit wear ring 68, and suction nozzle with battery unit wear ring 68 seals 69 with respect to impeller 5 sealings by suction.Can be clearly seen that, described intervalve part has been removed, and like this, the shift position of cap assembly 14 can be shown in Figure 4.
Shell 1 comprises cup-shaped parts 13 and flat cap assembly 14 substantially.The installation supporting element 11 of before mentioning is attached on described cup-shaped parts 13.Cap assembly 14 is supported with respect to the deck of ship by supporting member 15.This supporting member 15 comprises two A shape frameworks 16, and it moves back and forth on track 18 by roller 17.The annular sector part 19 concentric with axis 24 is installed on A shape framework 16.Described annular sector part 19 comprises slit 20, and the pin 21 being arranged on cap assembly 14 is within it supported.In addition, cap assembly 14 comprises the fan-shaped edge 25 of the bottom support concentric with axis 24.Then the fan-shaped edge 25 of described bottom support is maintained slidingly retained in bottom support partial contour 26, and it is radially to the U-shaped of interior orientation on cross section.Thus, cap assembly 14 rotatably supports around axis 24 between mounting point as shown in Figure 1,2 and 3 and rotation as shown in Figure 4, removed position.Equally, supporting member 15 can be used for support cover parts 14, and described cap assembly 14 is moved and is installed on cup-shaped parts 13.Wearing plate 62 and scapulet (shoulder plate) 66 is connected to the internal surface of cap assembly 14, adjacent impeller 2.
As shown in Figure 4, cap assembly 14 comprise be positioned the fan-shaped edge 25(of bottom support and see Fig. 2) below radially, the outwardly closed edge 22 of face.Described closed edge 22 is that it comprises spiral section 27 and the straight portion 28 that extends beyond approximately 270 degree with respect to axis 24 with respect to a slight spiral-shaped part of being of axis 24.Spiral section 27 stops at the top of cap assembly 14, in abutting connection with the exit orifice 10 of cup-shaped parts 1.Further, closed edge 22 comprises flange part 57, and it is in the position of tangential outlet 4, and extension between spiral section 27 and straight portion 28.Described mounting flange is provided with a series of holes 58, and its object will be described below.
Cup-shaped parts 13 are provided with the profile 23 of similar spiral and rectilinear form, and as shown in Figure 2, profile 23 has U-shaped cross section, and it radially inwardly and define groove 33.Described profile has spiral section 29 and straight portion 30.From Fig. 1-4, can be clearly seen that, profile is not to extend on the whole circumference of cup-shaped parts 13.Especially, the circumferential section 59 extending between the spiral section 29 of profile 23 and the straight portion 30 of profile 23, does not have described profile.Contrary, described circumferential section 59 comprises tapped hole, its object will be described below.Gear 31 is rotatably installed on the spiral section 29 of profile 23, and corresponding arc-shaped rack 32 is arranged on cap assembly 14.Described tooth bar 32 is concentric with axis 24.Wearing plate 63 and scapulet 67 are connected on cup-shaped parts 13, adjacent impeller.
Subsequently, from Fig. 4, start to describe cap assembly 14 about the installation process of cup-shaped parts 13.From the position shown in Fig. 4, cap assembly 14 moves to cup-shaped parts 13 by supporting member 15.In this process, consider the rotational position of cap assembly 14, the edge 22 of cap assembly 14 can move through the profile 23 of cup-shaped parts 13.When the cup-shaped parts 13 of cap assembly 14 adjacency, gear 31 and tooth bar 32 engagements, cap assembly 14 can be rotated.This rotation is to obtain by swing pinion 31, for example, use motor (not shown), and thus, tooth bar 32 is rotated together with cap assembly 14.The edge 22 of cap assembly 14 joins in the groove 33 of profile 23 gradually, and especially, the spiral section 27 at edge 22 is moved in the spiral section 29 of profile 23, and the straight portion 28 at edge 22 is moved in the straight portion of profile 23.Finally, bolt 61 inserts through the hole 58 in the flange part 57 of cap assembly 14, and is screwed in the tapped hole 60 in the circumferential section 59 of cup-shaped parts 13.Like this, between cap assembly 14 and cup-shaped parts 13, formed tight connection.
With contrary mode cover removal parts 14 from cup-shaped parts 13.After removing cap assembly 14, if necessary, can change impeller 5.Equally, the wearing plate 62 on the inwall 35 of cap assembly 14 and/or scapulet 66, and wearing plate 63(removes the latter after impeller 2) and/or scapulet 67 can be removed.
Cup-shaped parts 13 and other parts 14 can be made by plastic materials.As shown in Figure 5, cap assembly 14 comprises interior main wall 35 and outer main wall 36, between be the core 37 that also can be made by plastic materials.In illustrated embodiment, Nei Zhubi comprises that integral tubular part 38(defines the inlet opening 7 of centrifugal pump), pipe 12(is referring to Fig. 1-4) can be mounted thereto by intervalve part.Described tubular portion 38 extends and is connected to the opening 46 of outer main wall 36.Outer main wall 36 comprises axially extended edge 39, and edge 39 is provided with the flange 40 radially extending, and flange 40 is connected to the radially extension flange 41 of corresponding interior main wall 35.The edge 22 that flange 40,41 has been mentioned before having formed together.
As substantially flat parts, for example present cap assembly 14, has limited rigidity with respect to the load vertically acting on described parts, therefore, has been equipped with stiffening ring 42,43.External reinforcing ring 42 is resisted against on the internal surface that extends axially edge 39, and extends between main wall 35,36.Inner stiffening ring 43 is against the outer surface location of tubular portion 38, and between main wall 36 and the ridge (ridge) 44 of interior main wall 35, extends outside.
In illustrated embodiment, ring 42,43 is all ring-type, although can be also other shapes.Ring 42,43 comprises high tensile strength fibrous material, for example carbon fiber or glass fibre, and it coils at circumferencial direction.Therefore, ring 42,43 makes cap assembly 14 have suitable rigidity, this means the in the situation that of inner overpressure, and the distortion of described cap assembly 14 in discussed centrifugal pump working procedure remains on and can accept in limit.
According to the important advantage of cap assembly 14 of the present invention, be about such fact: its axial dimension is restricted for the axial dimension of steel cap assembly of the prior art.The cap assembly of described steel possesses the stiffening ring that main wall extends from it, forms sizable axial dimension of described cap assembly.
When cap assembly 14 is supported by supporting member 15, wearing plate 62 and/or scapulet 66 can be removed.
As shown in the section of Fig. 7, the cup-shaped parts 13 of shell 1 also can be made by plastic materials.Finally, described cup-shaped parts 13 comprise outer cup-shaped member 50 and interior cup-shaped member 51, and each has bottom 52,53 and wall separately 54,55 separately.Wall 54,55 interconnects, and for example, by bonding, and bottom 52,53 interconnects by core 56.Further, have towards the profile 23 of interior U-shaped groove 33, with outer cup-shaped member 50, form whole.By the link 47 holding as the cup-shaped parts 13 of shell 1, in described shell 1, can maintain superpressure.
As shown in Figure 8 and Figure 9, expansion sealing ring 64 is present between cap assembly 14 and cup-shaped parts 13.Described seal ring 64 is installed in the groove 70 of cup-shaped parts 13, and groove 70 is at the side opening of the groove 33 of profile 23.Described groove 70 with seal ring 64 together, extends around the whole circumference of cup-shaped parts 13, to obtain the required sealing in shell 1 inner space.Seal ring 64 is the maze type seal rings with a series of ectolophs 71, and its surface that is resisted against cap assembly 14 seals.
The seal action of seal ring 64 is realized by described ring is expanded.Expansion step is to realize by injecting pressurized gas in the internal chamber 65 in seal ring 64.When cap assembly 14 is removed or be installed to cup-shaped parts 13 from cup-shaped parts 13, first, seal ring 64 shrinks by pressurized gas being discharged to cavity 65.Like this, avoided the issuable any damage to seal ring 64 of movement by other parts 14.As shown in Figure 9, it shows the cap assembly 14 of rotation by this way to the contraction state of sealing 64 equally: the groove 33 of the firm profile 23 from cup-shaped parts 13 of its spiral section 27 spins out.
In the alternative embodiment of Figure 10, applied installing ring 70.In installing ring 70, the closed edge 22 of cap assembly 14 is held wherein.Further, the closed edge 71 that cup-shaped parts 13 around have is contained in installing ring 70 equally.Finally, in an illustrated embodiment, installing ring 70 comprises quite wide groove 33.Groove 33 and closed edge 22 and/or 71 can be spiralitys.By with respect to cap assembly 14 and cup-shaped parts 13 rotation installing rings 70, obtain connection and the dismounting of described parts 13,14, the similar embodiment who describes before.
In the embodiment of Figure 11, the embodiment of its very similar Fig. 1-9, the closed edge 22 of cap assembly 14 is tapered towards narrow end.The groove 33 of cup-shaped parts 13 has analogous shape.By these tapers, can further improve and connect and unloading process.
Can find, as previously mentioned, describe spiral-shapedly, its major component about the circumference of cup-shaped parts 13 and cap assembly 14 is extended.But, it is noted that and can on mutual line stretcher, apply multiple spiral-shaped part.This embodiment's advantage is, for the object about being connected to each other or taking apart by cap assembly 14 and cup-shaped parts 13, to be necessary it is limited rotating amount.Conventionally, if two spiral-shaped certain applications on mutual line stretcher, required rotation can reduce half.
Claims (31)
1. a centrifugal pump, comprise: shell (1), be contained in the inner casing (2) in shell (1), around central axis, be rotatably supported on the impeller (5) in inner casing (2), the entrance (3) of arranging with one heart with impeller (5) and the outlet (4) of tangent direction, described shell (1) comprises cup-shaped parts (13), cap assembly (14) and described cap assembly is installed to the erecting device on cup-shaped parts (13), it is characterized in that, erecting device comprises having interactional spiral-shaped (29, 27) erection unit, described erection unit is associated with cup-shaped parts (13) and cap assembly (14) by this way, that is: described erection unit is in one direction around the mutual rotation of described central axis, the position that interfixes that causes described cup-shaped parts (13) and described cap assembly (14), and described erection unit is in the opposite direction around the mutual rotation of described central axis, the mutual removed position that causes described cup-shaped parts (13) and described cap assembly (14), erection unit is included in the edge (22) that the spirality on one of cup-shaped parts (13) and cap assembly (14) is radially extended, and inwardly there is radially the corresponding spirality profile (23) towards groove (33) on another in described cup-shaped parts (13) and cap assembly (14).
2. centrifugal pump as claimed in claim 1, is characterized in that, extend in approximately 3/4ths part of cup-shaped parts (13) circumference and cap assembly (14) circumference spiral-shaped (29,27).
3. centrifugal pump as claimed in claim 2, is characterized in that, the cup-shaped parts (13) outside spiral-shaped (29,27) and the circumferential section of cap assembly (14) comprise additional erection unit.
4. the centrifugal pump as described in any one in claim 1-3, is characterized in that, edge (22) and profile (23) are respectively included in the straight portion (28,30) of the extended spot of corresponding spiral section (27,29).
5. centrifugal pump as claimed in claim 4, is characterized in that, straight portion (28,30) is tangential on corresponding spiral section (27,29).
6. centrifugal pump as claimed in claim 4, it is characterized in that, the circumferential section of cup-shaped parts (13) and the circumferential section of cap assembly (14) that between its corresponding straight portion (30,28) and spiral section (29,27), extend comprise that bolt is connected (58,61).
7. centrifugal pump as claimed in claim 3, is characterized in that, the length on the circumferencial direction of edge (22) is greater than the length on the circumferencial direction of profile (23).
8. the centrifugal pump as described in any one in claim 1-3, is characterized in that, is equipped with control apparatus (31,32) to control the mutual rotation of cup-shaped parts (13) and cap assembly (14).
9. centrifugal pump as claimed in claim 8, it is characterized in that, control apparatus comprises the gear (31) being rotatably installed on one of cup-shaped parts (13) and cap assembly (14), and on another in described cup-shaped parts (13) and cap assembly (14) about the crooked tooth bar (32) of described central axis (24).
10. centrifugal pump as claimed in claim 1, is characterized in that, erection unit comprises installing ring (70), and upper and be provided with spiral-shaped (29,27) at cup-shaped parts (13) and cap assembly (14) on one of at least at installing ring (70).
11. centrifugal pumps as claimed in claim 10, is characterized in that, upper and be all provided with spiral-shaped (29,27) at cup-shaped parts (13) and cap assembly (14) on both at installing ring (70).
12. centrifugal pumps as claimed in claim 1, is characterized in that, the spiral section on the spiral-shaped continuous part that comprises a plurality of circumference that extend in erection unit.
13. centrifugal pumps as claimed in claim 1, is characterized in that, erection unit comprise radially outward extending, there is to the edge in the tapered cross section of narrow end and the groove of respective shapes.
14. centrifugal pumps as claimed in claim 1, is characterized in that, cap assembly (14) comprises plastic materials.
15. centrifugal pumps as claimed in claim 14, is characterized in that, cap assembly (14) comprises at least one stiffening ring (42,43).
16. centrifugal pumps as claimed in claim 1, is characterized in that, cup-shaped parts (13) comprise plastic materials.
17. centrifugal pumps as claimed in claim 1, is characterized in that, wearing plate (62) is arranged on the internal surface of cap assembly (14).
18. centrifugal pumps as claimed in claim 1, is characterized in that, wearing plate (63) is arranged on the internal surface of cup-shaped parts (13).
19. centrifugal pumps as claimed in claim 18, is characterized in that, between wearing plate and inner casing, scapulet are set.
20. centrifugal pumps as claimed in claim 1, are included in the seal ring (64) between cup-shaped parts (13) and cap assembly (14), it is characterized in that, described seal ring (64) is expansion.
21. centrifugal pumps as claimed in claim 20, is characterized in that, seal ring (64) comprises internal chamber (65), and it can be connected to fluid source so that seal ring (64) expands.
22. centrifugal pumps as claimed in claim 3, is characterized in that, described additional erection unit is bolt (61).
23. 1 kinds of composite structures, this composite structure forms by the centrifugal pump as described in any one in claim 1-16 and 20-22 with for the supporting member (15) of support cover parts (14), and wherein cap assembly (14) can rotate around described central axis (24).
24. composite structures as claimed in claim 23, is characterized in that, supporting member (15) can be connected on shell (1).
25. composite structures as described in claim 23 or 24, it is characterized in that, cap assembly (14) is provided with the fan-shaped edge of bottom support (25), and supporting member (15) comprises makes the fan-shaped edge of bottom support (25) be contained in slidably or rotationally bottom support scalloped profile (26) wherein.
26. composite structures as described in claim 23 or 24, it is characterized in that, supporting member (15) comprises that two carryings are provided with the A shape framework of the annular sector part (19) of slit (20), and cap assembly (14) comprises the pin (21) being slidably received within corresponding slit (20).
27. composite structures as described in claim 23 or 24, is characterized in that, supporting member (15) can move back and forth with respect to shell (1).
28. composite structures as described in claim 23 or 24, it is used for respect to cup-shaped parts (13) installation or removal cap assemblies (14).
29. composite structures as claimed in claim 28, is characterized in that, wearing plate (62) is arranged on the internal surface of cap assembly (14), when the cap assembly (14) of dismantling is supported by supporting member (16), can remove or change wearing plate (62).
30. composite structures as claimed in claim 28, it is characterized in that, wearing plate (63) is arranged on the internal surface of cup-shaped parts (13), when the cap assembly (14) of dismantling is supported by supporting member (16), can remove or change wearing plate (63).
31. composite structures as claimed in claim 30, is characterized in that, between wearing plate and inner casing, scapulet are set, and when the cap assembly (14) of dismantling is supported by supporting member (16), can remove or change wearing plate and/or scapulet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07104825.0A EP1972789B1 (en) | 2007-03-23 | 2007-03-23 | Centrifugal pump comprising a spiral shape mounting arrangement |
| EP07104825.0 | 2007-03-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101275587A CN101275587A (en) | 2008-10-01 |
| CN101275587B true CN101275587B (en) | 2014-08-20 |
Family
ID=38326881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810100379.8A Expired - Fee Related CN101275587B (en) | 2007-03-23 | 2008-03-24 | Centrifugal pump comprising a spiral shape mounting arrangement and composite structure comprising centrifugal pump |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1972789B1 (en) |
| CN (1) | CN101275587B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU170431U1 (en) * | 2016-10-14 | 2017-04-25 | Общество с ограниченной ответственностью "ИнжиТех" | ULITA FASTENING ASSEMBLY TO THE SLUMP PUMP HOUSING |
| CN108180170A (en) * | 2018-01-30 | 2018-06-19 | 河南省西峡汽车水泵股份有限公司 | A kind of method for installing cover board |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB215961A (en) * | 1923-05-16 | 1924-05-22 | W H Allen Sons & Company Ltd | Improvements in centrifugal pumps |
| US2377740A (en) * | 1944-03-31 | 1945-06-05 | Gen Electric | Centrifugal compressor |
| EP1669611A1 (en) * | 2004-11-10 | 2006-06-14 | Bominox S.A. | Centrifugal pump |
| CN1906418A (en) * | 2003-11-14 | 2007-01-31 | 韦尔矿产欧洲有限公司 | Pump insert and assembly |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1158841B (en) * | 1959-06-10 | 1963-12-05 | M U K H Schreiner Saugbagger U | Pump for pumping solid-water mixtures with exchangeable inner housing |
| US7025385B2 (en) * | 2003-09-03 | 2006-04-11 | United Technologies Corporation | Coupling |
-
2007
- 2007-03-23 EP EP07104825.0A patent/EP1972789B1/en active Active
-
2008
- 2008-03-24 CN CN200810100379.8A patent/CN101275587B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB215961A (en) * | 1923-05-16 | 1924-05-22 | W H Allen Sons & Company Ltd | Improvements in centrifugal pumps |
| US2377740A (en) * | 1944-03-31 | 1945-06-05 | Gen Electric | Centrifugal compressor |
| CN1906418A (en) * | 2003-11-14 | 2007-01-31 | 韦尔矿产欧洲有限公司 | Pump insert and assembly |
| EP1669611A1 (en) * | 2004-11-10 | 2006-06-14 | Bominox S.A. | Centrifugal pump |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1972789A1 (en) | 2008-09-24 |
| CN101275587A (en) | 2008-10-01 |
| EP1972789B1 (en) | 2017-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102066770B (en) | An adjustable side liner for a pump | |
| EP1557570A2 (en) | Molded pump | |
| RU2553582C2 (en) | Low-pressure steam turbine | |
| US20120063941A1 (en) | Eccentric-screw pump | |
| CN105179227A (en) | Eccentric screw pump | |
| CN101275587B (en) | Centrifugal pump comprising a spiral shape mounting arrangement and composite structure comprising centrifugal pump | |
| CN113386322B (en) | Cooling and shaping device for production of engineering plastic pipes | |
| CN101270762B (en) | Centrifugal pump housing having a flat single cover part | |
| RU2669133C1 (en) | Method for manufacturing a cast body of a radial turbohydraulic power plant, prefabricated cast model of a body (variants), typical series of bodies | |
| WO2016041841A1 (en) | Radial turbomachine with barrel-shaped outer casing, wherein the volute is formed in the wall of the outer casing | |
| CN106075952A (en) | Centrifugal extractor rotary drum and the manufacture method of this rotary drum | |
| US5269923A (en) | Agitator suction filter | |
| CN106545496B (en) | Sleeping suction multi-stage pipeline pump | |
| CN102374188A (en) | Centrifugal pump | |
| CN205762763U (en) | A kind of high-pressure water jet rotary body | |
| RU2539219C2 (en) | Console axial compressor, chemical reactor and manufacturing method of console axial compressor | |
| CN108452954A (en) | Driven centrifugal unit, its manufacturing method and application method and its solid-liquid separating equipment | |
| JP6063668B2 (en) | pump | |
| CN214887917U (en) | High-strength hollow fan blade convenient to disassemble | |
| CN103511173A (en) | Water turbine provided with four servomotors on top cover | |
| KR101580491B1 (en) | Waste-disposal machine with screw press | |
| CN205170411U (en) | Filter core and filter core device | |
| CN214389263U (en) | Filter for steam-water separator | |
| CN216895173U (en) | Hydraulic filter convenient to wash | |
| CN211900988U (en) | Cantilever type centrifugal pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20140820 |