CN222863523U - Pelton turbine nozzle device - Google Patents
Pelton turbine nozzle device Download PDFInfo
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- CN222863523U CN222863523U CN202421483177.7U CN202421483177U CN222863523U CN 222863523 U CN222863523 U CN 222863523U CN 202421483177 U CN202421483177 U CN 202421483177U CN 222863523 U CN222863523 U CN 222863523U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model relates to a nozzle device of an impulse turbine. The impulse turbine nozzle device comprises a spray pipe, an adjusting mechanism, a nozzle, a spray needle and a bushing. The adjusting mechanism is arranged in the spray pipe. The nozzle is a conical hollow structure with two open ends. The big end of the nozzle is connected with one end of the spray pipe in a sealing way. The end part of the large end of the spray needle is detachably connected with the end part of one end of the adjusting mechanism. The needle is configured to pass entirely through the port at the small end of the nozzle. The bushing is removably sealingly mounted within the port at the small end of the nozzle and is capable of sealing contact with the surface of the needle. The bushing is configured to be integrally detachable from the small end side of the nozzle. According to the impulse turbine nozzle device, the whole device is not required to be disassembled, so that the maintenance and replacement of wearing parts such as the bushing, the spray needle and the like can be performed, the bushing and the spray nozzle in the easily worn power station can be mounted and dismounted, the maintenance efficiency of the power station is greatly improved, and the economic benefit of the power station is improved.
Description
Technical Field
The utility model relates to the technical field of hydraulic machinery, in particular to a jet nozzle device of an impulse turbine.
Background
The water turbine is mainly divided into two types, namely a reaction water turbine and an impulse water turbine, which are used as energy conversion equipment for utilizing water resources. For impulse turbine, nozzle device installs at impulse turbine pressure pipeline end, has the kinetic energy of regulation unit flow, and nozzle device body structure and the cooperation stability of turning over ware, servomotor directly influence the stability of unit.
In a conventional nozzle device (as shown in fig. 1), the nozzle bush 2 and the nozzle 4 are generally of built-in structure, that is, the nozzle 4 with the nozzle bush 2 is directly driven into and fixed from the left side of the needle 3, and the needle 3 and the adjusting mechanism cylinder 6 are connected by the bolt 5 in the servomotor cylinder 6, so that the replacement of the nozzle bush 2 and the needle 3 cannot be realized without disassembling the nozzle device, and the maintenance and replacement of vulnerable parts such as the nozzle bush 2 and the needle 3 are difficult.
Disclosure of utility model
Based on the problem that the conventional impulse turbine nozzle device is difficult to overhaul and replace vulnerable parts such as spray needles, bushings and the like, it is necessary to provide an impulse turbine nozzle device convenient to overhaul and replace.
An impulse turbine nozzle apparatus comprising:
A spray pipe;
The adjusting mechanism is arranged in the spray pipe;
the large end of the nozzle is connected with one end of the spray pipe in a sealing way;
the end part of the big end is detachably connected with the end part of one end of the adjusting mechanism, and the spray needle is configured to integrally pass through the port of the small end of the spray nozzle;
And a bushing detachably and sealingly mounted in the port of the nozzle tip and capable of being in sealing contact with the surface of the needle, the bushing being configured to be integrally detachable from the nozzle tip side.
In some embodiments, one of the end part of one end of the adjusting mechanism and the end part of the big end of the spray needle is provided with a threaded hole, and the other end of the end part of the adjusting mechanism and the end part of the big end of the spray needle is provided with a threaded column, and the threaded column penetrates through the threaded hole and is in threaded fit with the threaded hole so as to detachably connect the spray needle and the adjusting mechanism.
In some embodiments, a fastening locking piece is screwed on the side wall of the adjusting mechanism or the spray needle provided with the threaded hole, and one end of the fastening locking piece is abutted against the threaded column so as to lock the spray needle on the adjusting mechanism.
In some embodiments, the threaded post comprises a smooth section and a threaded section coaxially arranged, wherein the outer diameter of the smooth section is larger than the outer diameter of the threaded section, the threaded hole comprises a unthreaded hole section and a threaded hole section coaxially arranged, and the inner diameter of the unthreaded hole section is larger than the inner diameter of the threaded hole;
The screw thread column passes through the unthreaded hole section and is in threaded fit with the screw hole section, the smooth section passes through the smooth section of the unthreaded hole section, the side wall of the unthreaded hole section is provided with a locking screw hole, one end of the fastening locking piece is in threaded connection with the locking screw hole, and the other end of the fastening locking piece is propped against the surface of the smooth section.
In some embodiments, an elastic sealing element is clamped between one end face of the adjusting mechanism and the end face of the big end of the spray needle, and the elastic sealing element is arranged along the circumferential direction of the threaded column.
In some embodiments, the edge part of the inner wall of the small end of the nozzle is provided with a mounting groove along the circumferential direction, and the outer wall of the bushing is provided with a mounting part along the circumferential direction;
The impact water turbine nozzle device further comprises a pressing plate with an annular plate-shaped structure, wherein the pressing plate is detachably connected with the end face of the small end of the nozzle and abuts against the axial end face of the mounting part.
In some embodiments, an elastic sealing ring is clamped between the outer wall of the mounting part and the inner wall of the mounting groove, and/or
The bushing comprises a first section, a second section and a third section which are connected in sequence and coaxially arranged, the mounting part is positioned on the outer wall of the second section, the first section penetrates through the mounting groove and is propped against the inner wall of the small end of the nozzle, and the pressing plate is sleeved on the third section and is detachably connected with the end face of the small end of the nozzle so as to press the mounting part in the mounting groove.
In some embodiments, a flange adjustment shim is mounted to an end of the spout remote from the nozzle.
In some embodiments, the adjusting mechanism comprises an adjusting cylinder body, a piston rod, a connecting cylinder body and a self-locking nut, wherein the adjusting cylinder body is of a hollow structure with two open ends, a partition plate structure is arranged in the adjusting cylinder body to divide a space in the adjusting cylinder body into a first cavity and a second cavity, a communication hole for communicating the first cavity and the second cavity is formed in the partition plate structure, the connecting cylinder body is slidably arranged in the first cavity in a penetrating mode, one end of the connecting cylinder body is located outside the adjusting cylinder body, the end of the connecting cylinder body is detachably connected with the end of the large end of a spray needle, the other end of the connecting cylinder body is connected with the piston rod, one end, away from the connecting cylinder body, of the piston rod is slidably arranged in the communication hole in a penetrating mode and stretches into the second cavity, and the self-locking nut is located in the second cavity and is connected onto the piston rod in a threaded mode.
In some embodiments, a servomotor is also included, the servomotor being removably mounted to the spout and/or the nozzle.
In the practical use process, the nozzle device of the impulse turbine only needs to be detached from the small end side of the nozzle for replacement when the bushing is required to be overhauled and replaced, and the bushing needs to be detached from the small end side of the nozzle firstly and then detached from the adjusting mechanism and taken out from the small end of the nozzle for replacement when the needle is required to be overhauled and replaced, and then the bushing is installed at the small end of the nozzle. Therefore, the impact water turbine nozzle device can be used for overhauling and replacing vulnerable parts such as the bushing, the spray needle and the like without disassembling the whole device, is beneficial to the installation and the disassembly of the bushing and the spray nozzle in the easily worn power station, greatly improves the overhauling efficiency of the power station, and is beneficial to the improvement of the economic benefit of the power station.
Drawings
FIG. 1 is a schematic view of a conventional nozzle device according to the background of the utility model;
FIG. 2 is a schematic view showing a nozzle assembly of an impulse turbine in accordance with a preferred embodiment of the present utility model;
FIG. 3 is a schematic view of the adjusting mechanism of the impulse turbine nozzle apparatus shown in FIG. 2;
FIG. 4 is a schematic view of the structure of the needle in the impulse turbine nozzle apparatus shown in FIG. 2;
FIG. 5 is a schematic view of the nozzle configuration of the impulse turbine nozzle assembly of FIG. 2;
fig. 6 is a schematic view of the bushing in the nozzle assembly of the impulse turbine shown in fig. 2.
The reference numerals refer to 100, impulse turbine nozzle device, 110, jet pipe, 120, adjusting mechanism, 121, threaded hole, 1211, light hole section, 1212, screw hole section, 122, adjusting cylinder, 1221, baffle structure, 1222, first chamber, 1223, second chamber, 123, piston rod, 124, connecting cylinder, 125, self-locking nut, 126, locking screw hole, 130, nozzle, 131, mounting groove, 140, needle, 141, threaded post, 1411, smooth section, 1412, threaded section, 142, seal groove, 150, bushing, 151, mounting part, 1511, seal groove, 152, first section, 153, second section, 154, third section, 160, fastening lock, 170, elastic seal, 180, elastic seal, 190, pressure plate, 201, adjusting gasket, 202, servomotor, 203, deflector, 204, swivel arm.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present unless otherwise specified. It will also be understood that when an element is referred to as being "between" two elements, it can be the only one between the two elements or one or more intervening elements may also be present.
Where the terms "comprising," "having," and "including" are used herein, another component may also be added unless explicitly defined terms such as "only," "consisting of," etc., are used. Unless mentioned to the contrary, singular terms may include plural and are not to be construed as being one in number.
Moreover, the figures are not drawn to a 1:1 scale, and the relative sizes of elements are drawn in the figures by way of example only and are not necessarily drawn to true scale.
Fig. 2 shows the structure of a nozzle device of an impulse turbine in an embodiment of the utility model. For convenience of explanation, the drawings show only structures related to the embodiments of the present utility model.
Referring to FIG. 2, a nozzle assembly 100 of an impulse turbine in accordance with a preferred embodiment of the present utility model includes a nozzle 110, an adjustment mechanism 120, a nozzle 130, a needle 140, and a bushing 150.
The adjustment mechanism 120 is mounted within the nozzle 110. The nozzle 130 has a tapered hollow structure with both ends open. The large end of the nozzle 130 is sealingly connected to one end of the spout 110. The needle 140 has a pointed cone structure. The large end of the needle 140 is detachably connected to the end of one end of the adjustment mechanism 120. The needle 140 is configured to pass entirely through the port at the small end of the nozzle 130. The bushing 150 is removably sealingly mounted within the port at the small end of the nozzle 130 and is capable of sealing contact with the surface of the needle 140. The bushing 150 is configured to be integrally detachable from the small end side of the nozzle 130.
In practical applications, the adjusting mechanism 120 is configured to drive the needle 140 to move in the direction of the central axis of the nozzle 110 until a gap is formed between the needle 140 and the inner wall of the bushing 150, or the needle 140 is in sealing contact with the inner wall of the bushing 150, so as to open or close a port at the small end of the nozzle 130, thereby achieving the purpose of adjusting the flow rate of the unit.
As described in the background art, in the easily worn power station, the bushing 150 and the nozzle 130 are both easily damaged parts, and wear and other conditions inevitably occur after long-term use, so that the easily damaged parts need to be overhauled and replaced in time to ensure the reliability of the operation of the unit.
When the bushing 150 needs to be overhauled and replaced, the bushing 150 needs to be detached from the small end side of the nozzle 130, and when the needle 140 needs to be overhauled and replaced, the bushing 150 needs to be detached from the small end side of the nozzle 130, the needle 140 needs to be detached from the adjusting mechanism 120 and taken out from the small end of the nozzle 130 for replacement, and then the bushing 150 is installed at the small end of the nozzle 130. In this way, the nozzle device 100 of the impulse turbine can be used for overhauling and replacing the wearing parts such as the bushing 150 and the spray needle 140 without disassembling the whole device, is beneficial to the installation and the disassembly of the bushing 150 and the spray nozzle 130 in the wearing power station, greatly improves the overhauling efficiency of the power station, and is beneficial to the improvement of the economic benefit of the power station.
Referring to fig. 3 and 4, in some embodiments, one of the end of one end of the adjusting mechanism 120 and the end of the large end of the needle 140 is provided with a threaded hole 121, and the other is provided with a threaded post 141. The threaded post 141 is disposed through the threaded hole 121 and is in threaded engagement with the threaded hole 121 to detachably connect the needle 140 with the adjustment mechanism 120.
Specifically, when the threaded hole 121 is located on the end face of one end of the adjustment mechanism 120, the threaded post 141 is located at the end of the large end of the needle 140, and when the threaded hole 121 is located on the end face of the large end of the needle 140, the threaded post 141 is located at the end of one end of the adjustment mechanism 120. In practical application, the worker only needs to twist the small end of the needle 140, and can detach the needle 140 from the adjusting mechanism 120 or mount the needle 140 on the adjusting mechanism 120, so that the maintenance and replacement of the needle 140 are simpler.
Of course, in other embodiments, the needle 140 may be detachably connected to the adjustment mechanism 120 in other manners, so long as the worker removes the needle 140 from the adjustment mechanism 120 and removes it from the port at the small end of the nozzle 130 without removing the structure of the nozzle 130.
Further, in some embodiments, a fastening lock 160 is screwed on a sidewall of the adjustment mechanism 120 or the needle 140 provided with the threaded hole 121. One end of the tightening latch 160 abuts the threaded post 141 to lock the needle 140 to the adjustment mechanism 120.
Namely, when the threaded hole 121 is positioned on the end face of the large end of the spray needle 140, the side wall of the large end of the spray needle 140 is provided with a locking screw hole 126, one end of the fastening locking piece 160 is screwed in the locking screw hole 126, the other end of the fastening locking piece is abutted against the threaded column 141 screwed in the threaded hole 121, when the threaded hole 121 is positioned at one end of the adjusting mechanism 120, the side wall of one end of the adjusting mechanism 120 is provided with the locking screw hole 126, one end of the fastening locking piece 160 is screwed in the locking screw hole 126, and the other end of the fastening locking piece 160 is abutted against the threaded column 141 screwed in the threaded hole 121. Thus, after the threaded post 141 is installed in place in the threaded hole 121, the fastening locking member 160 can be screwed until the fastening locking member 160 abuts against the threaded post 141, so as to prevent the threaded post 141 from loosening in the threaded hole 121, play a role in stopping and loosening, and ensure the reliability of the connection between the needle 140 and the adjusting mechanism 120.
Still further, in some embodiments, the threaded post 141 includes a coaxially disposed smooth section 1411 and a threaded section 1412. The smooth section 1411 has an outer diameter that is greater than the outer diameter of the threaded section 1412. The threaded bore 121 includes a coaxially disposed unthreaded bore section 1211 and a threaded bore section 1212. The inner diameter of the light bore section 1211 is greater than the inner diameter of the threaded bore 121.
Threaded post 141 passes through unthreaded bore section 1211 and threadedly mates with threaded bore section 1212. Smooth segment 1411 is disposed through unthreaded bore segment 1211. The side wall of the unthreaded bore section 1211 is provided with a locking threaded bore 126. One end of the fastening locking piece 160 is screwed to the locking screw hole 126, and the other end abuts against the surface of the smooth section 1411.
Thus, when the threaded section 1412 is screwed into the threaded hole section 1212 through the unthreaded hole section 1211, the axial end surface of the smooth section 1411 near the end of the threaded section 1412 and the axial end surface of the unthreaded hole section 1211 near the end of the threaded hole section 1212 cooperate with each other, so that the position of the threaded section 1412 in the threaded hole section 1212 can be defined to improve the accuracy of mounting the nozzle 130 on the adjustment mechanism 120.
Meanwhile, the fastening locking piece 160 abuts against the smooth section 1411, so that damage to the external threads on the threaded column 141 is avoided, and the stopping effect of the fastening locking piece 160 can be improved.
Further, in some embodiments, an elastomeric seal 170 is sandwiched between an end face of the adjustment mechanism 120 and an end face of the large end of the needle 140. The elastic seal 170 is disposed along the circumference of the screw post 141. The elastic seal 170 is an annular structure disposed along the circumferential direction of the screw post 141. The provision of the elastic sealing member 170 can improve the sealing performance at the junction between the needle 140 and the adjustment mechanism 120.
Specifically, the end surface of the large end of the needle 140 is circumferentially provided with a seal groove 142, and the elastic seal 170 is mounted in the seal groove 142 and clamped between the inner wall of the seal groove 142 and the end surface of one end of the adjusting mechanism 120. The sealing groove 142 facilitates the installation of the elastic sealing member 170, and reduces the sliding probability of the elastic sealing member 170, thereby improving the sealing reliability of the elastic sealing member 170.
Referring to fig. 5 and fig. 6, in some embodiments, a mounting groove 131 is formed at an edge portion of the inner wall of the small end of the nozzle 130 along the circumferential direction. The outer wall of the bushing 150 is provided with a mounting portion 151 in the circumferential direction. The mounting portion 151 is sealingly engaged in the mounting groove 131.
Referring again to fig. 2, the impulse turbine nozzle apparatus 100 further includes a pressure plate 190 having an annular plate-like structure. The pressing plate 190 is detachably connected to the end face of the small end of the nozzle 130, and abuts against the axial end face of the mounting portion 151.
Thus, when the bushing 150 needs to be mounted on the small end of the nozzle 130, the bushing 150 is first clamped into the mounting groove 131 in a sealing manner, and then the pressing plate 190 is mounted on the end surface of the small end of the nozzle 130, so that the bushing 150 is pressed in the mounting groove 131 by the pressing plate 190, the bushing 150 is prevented from loosening from the mounting groove 131, and the mounting reliability of the bushing 150 is improved. When the bushing 150 needs to be detached from the nozzle 130, the pressing plate 190 is only required to be detached from the nozzle 130, and then the bushing 150 is pulled out of the mounting groove 131, so that convenience and rapidness are achieved.
Further, in some embodiments, an elastic sealing ring 180 is sandwiched between the outer wall of the mounting portion 151 and the inner wall of the mounting groove 131. The elastic sealing ring 180 can seal the joint between the bushing 150 and the nozzle 130, and the sealing effect between the bushing and the nozzle is improved.
Specifically, the outer wall of the mounting portion 151 is provided with a sealing groove 1511 along the circumferential direction, the elastic sealing ring 180 is mounted in the sealing groove 1511, and the elastic sealing groove 1511 is clamped between the inner wall of the sealing groove 1511 and the inner wall of the mounting groove 131, so as to improve the sealing reliability of the elastic sealing ring 180.
Further, in some embodiments, the bushing 150 includes a first segment 152, a second segment 153, and a third segment 154 that are connected in sequence and coaxially disposed. The mounting portion 151 is located on the outer wall of the second section 153. The first section 152 passes through the mounting recess 131 and abuts the inner wall of the small end of the nozzle 130. The pressing plate 190 is sleeved on the third section 154 and detachably connected with the end surface of the small end of the nozzle 130, so as to press the mounting part 151 in the mounting groove 131.
In this way, the mounting portion 151 and the first section 152 are respectively clamped in the mounting groove 131 and the small end of the nozzle 130, so as to increase the contact area between the bushing 150 and the nozzle 130 and improve the connection stability between the bushing 150 and the nozzle 130. In addition, the pressing plate 190 is sleeved on the third section 154, so that the installation convenience of the pressing plate 190 is improved, and the contact area between the pressing plate 190 and the bushing 150 is increased, so that the stability and reliability of the installation of the bushing 150 are further improved.
In some embodiments, a flange adjustment shim 201 is mounted to the end of the spout 110 remote from the nozzle 130. The flange adjusting gasket 201 solves the problem of difficult horizontal adjustment during installation of the spray pipe 110 in the traditional nozzle 130 device, is beneficial to installation and adjustment of the spray pipe 110, and reduces the installation difficulty.
In some embodiments, the adjustment mechanism 120 includes an adjustment cylinder 122, a piston rod 123, a connecting cylinder 124, and a self-locking nut 125. The adjusting cylinder 122 has a hollow structure with two open ends. A partition structure 1221 is provided within the adjustment cylinder 122 to divide the space within the adjustment cylinder 122 into a first chamber 1222 and a second chamber 1223. The partition structure 1221 is provided with communication holes (labeled in the drawing) for communicating the first chamber 1222 and the second chamber 1223. The connecting cylinder 124 is slidably disposed within the first chamber 1222. One end of the connecting cylinder 124 is located outside the adjusting cylinder 122 and its end is detachably connected to the end of the large end of the needle 140. The other end of the connecting cylinder 124 is connected to the piston rod 123. The end of the piston rod 123 remote from the connecting cylinder 124 slidably penetrates the communication hole and protrudes into the second chamber 1223. The self-locking nut 125 is disposed in the second chamber 1223 and is screwed onto the piston rod 123.
In this way, the piston rod 123 slides in the adjusting cylinder 122, so as to drive the connecting cylinder 124 and the needle 140 to move in the direction of the central axis of the nozzle 130, thereby closing or opening the port at the small end of the nozzle 130. The self-locking nut 125 is matched with the piston rod 123 to limit the movement limit position of the piston rod 123 in the direction of the central axis of the nozzle 130, and the self-locking nut has the advantages of good stopping effect, convenient installation and the like.
In some embodiments, impulse turbine nozzle apparatus 100 also includes a servomotor 202. The relay 202 is removably mounted to the nozzle 110 and/or the nozzle 130. As such, the relay 202 may be mounted on the nozzle 130 or the nozzle 110 alone or may be coupled to the nozzle 110 and the nozzle 130, respectively.
In the impulse turbine, the throwing and withdrawing functions of the deflector 203 are required to be completed by the servomotor 202 driving the rotating arm 204 to drive the deflector 203 to rotate.
Compared with the traditional impulse turbine (shown in fig. 1) in which the servomotor 1 is mounted on the shell 7, the servomotor 202 is directly mounted on the spray pipe 110 and/or the spray nozzle 130, so that the servomotor 202 can safely and reliably control the operation of the deflector 203, the mounting is convenient, the structure of the impulse turbine is more compact, the volume is reduced, and the cost is saved.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. An impulse turbine nozzle apparatus, comprising:
A spray pipe;
The adjusting mechanism is arranged in the spray pipe;
the large end of the nozzle is connected with one end of the spray pipe in a sealing way;
the end part of the big end is detachably connected with the end part of one end of the adjusting mechanism, and the spray needle is configured to integrally pass through the port of the small end of the spray nozzle;
And a bushing detachably and sealingly mounted in the port of the nozzle tip and capable of being in sealing contact with the surface of the needle, the bushing being configured to be integrally detachable from the nozzle tip side.
2. The impulse turbine nozzle apparatus of claim 1 wherein one of the end of said adjustment mechanism and the end of said needle tip has a threaded bore and the other has a threaded post, said threaded post being threaded through said threaded bore and engaging said threaded bore to removably connect said needle tip to said adjustment mechanism.
3. The nozzle device of impulse turbine as claimed in claim 2, characterized in that a fastening locking piece is screwed on the side wall of the adjusting mechanism or the spray needle provided with the threaded hole, and one end of the fastening locking piece is abutted with the threaded column to lock the spray needle on the adjusting mechanism.
4. The impulse turbine nozzle apparatus of claim 3 wherein said threaded post includes coaxially disposed smooth and threaded sections, said smooth section having an outer diameter greater than the outer diameter of said threaded section, said threaded bore including coaxially disposed smooth bore section and threaded bore section, the inner diameter of said smooth bore section being greater than the inner diameter of said threaded bore;
The screw thread column passes through the unthreaded hole section and is in threaded fit with the screw hole section, the smooth section passes through the unthreaded hole section, a locking screw hole is formed in the side wall of the unthreaded hole section, one end of the fastening locking piece is in threaded connection with the locking screw hole, and the other end of the fastening locking piece abuts against the surface of the smooth section.
5. The nozzle device of impulse turbine as claimed in claim 2, characterized in that an elastic sealing member is clamped between an end surface of one end of the adjusting mechanism and an end surface of the large end of the needle, and the elastic sealing member is arranged along the circumferential direction of the threaded column.
6. The impulse turbine nozzle apparatus of claim 1, wherein the edge portion of the nozzle tip inner wall is circumferentially provided with a mounting groove, and the bushing outer wall is circumferentially provided with a mounting portion, the mounting portion being sealingly mounted in the mounting groove;
The impact water turbine nozzle device further comprises a pressing plate with an annular plate-shaped structure, wherein the pressing plate is detachably connected with the end face of the small end of the nozzle and abuts against the axial end face of the mounting part.
7. The impulse turbine nozzle apparatus of claim 6 wherein an elastomeric seal is sandwiched between the outer wall of said mounting portion and the inner wall of said mounting groove, and/or
The bushing comprises a first section, a second section and a third section which are connected in sequence and coaxially arranged, the mounting part is positioned on the outer wall of the second section, the first section penetrates through the mounting groove and is propped against the inner wall of the small end of the nozzle, and the pressing plate is sleeved on the third section and is detachably connected with the end face of the small end of the nozzle so as to press the mounting part in the mounting groove.
8. Impulse turbine nozzle arrangement as claimed in claim 1, characterized in, that the end of the nozzle pipe remote from the nozzle is fitted with a flange adjusting gasket.
9. The impulse turbine nozzle apparatus of claim 1, wherein the adjusting mechanism comprises an adjusting cylinder, a piston rod, a connecting cylinder and a self-locking nut, wherein the adjusting cylinder is of a hollow structure with two open ends, a partition plate structure is arranged in the adjusting cylinder to divide a space in the adjusting cylinder into a first cavity and a second cavity, a communication hole which is communicated with the first cavity and the second cavity is formed in the partition plate structure, the connecting cylinder is slidably arranged in the first cavity in a penetrating manner, one end of the connecting cylinder is positioned outside the adjusting cylinder, the end of the connecting cylinder is detachably connected with the end of the large end of the needle, the other end of the connecting cylinder is connected with the piston rod, one end of the piston rod, which is far away from the connecting cylinder, is slidably arranged in the communication hole and extends into the second cavity, and the self-locking nut is positioned in the second cavity and is screwed on the piston rod.
10. The impulse turbine nozzle apparatus of claim 1 further comprising a servomotor, the servomotor being removably mounted to the nozzle tube and/or the nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421483177.7U CN222863523U (en) | 2024-06-26 | 2024-06-26 | Pelton turbine nozzle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421483177.7U CN222863523U (en) | 2024-06-26 | 2024-06-26 | Pelton turbine nozzle device |
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| Publication Number | Publication Date |
|---|---|
| CN222863523U true CN222863523U (en) | 2025-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421483177.7U Active CN222863523U (en) | 2024-06-26 | 2024-06-26 | Pelton turbine nozzle device |
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| CN (1) | CN222863523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120593972A (en) * | 2025-08-06 | 2025-09-05 | 东方电气集团东方电机有限公司 | A pressure test tool for impulse turbine nozzle and mouth ring and its assembly and test method |
-
2024
- 2024-06-26 CN CN202421483177.7U patent/CN222863523U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120593972A (en) * | 2025-08-06 | 2025-09-05 | 东方电气集团东方电机有限公司 | A pressure test tool for impulse turbine nozzle and mouth ring and its assembly and test method |
| CN120593972B (en) * | 2025-08-06 | 2025-10-17 | 东方电气集团东方电机有限公司 | A pressure test tool for impulse turbine nozzle and mouth ring and its assembly and test method |
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