CN214308457U

CN214308457U - Special tool for measuring axial series flow of gas turbine for PDH device

Info

Publication number: CN214308457U
Application number: CN202120591140.6U
Authority: CN
Inventors: 高慧文
Original assignee: Tianjin Bohai Petrochemical Co ltd
Current assignee: Tianjin Bohai Petrochemical Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-09-28
Anticipated expiration: 2031-03-23

Abstract

The utility model provides a gas turbine axial string volume measurement specialized tool for PDH device relates to propane dehydrogenation system propylene technical field. It includes the fixed plate, the connecting rod, first mounting and second mounting, the air inlet department at the combustion engine is connected to the fixed plate, the through-hole has been seted up on the fixed plate, the connecting rod passes from the through-hole, the connecting rod is swing joint has first mounting and second mounting respectively in the both sides of fixed plate, first mounting and second mounting all can move on the connecting rod and cooperate with the fixed plate in order to restrict the connecting rod respectively along the ascending removal in two directions of axial direction, the one end of connecting rod is connected with the spindle nose of combustion engine, the other end of connecting rod is connected with the measuring head extrusion of percentage table, during the axial string volume, the spindle nose drives connecting rod synchronous motion with the extrusion or release measuring head, make the percentage table produce data change, overall structure is simpler, replace the manpower with mechanical mode, the comparatively difficult problem of manual measurement axial string volume has been solved.

Description

Special tool for measuring axial series flow of gas turbine for PDH device

Technical Field

The utility model belongs to the technical field of propane dehydrogenation system propylene device technique and specifically relates to a gas turbine axial cluster volume of measuring specialized tool for PDH device is related to.

Background

The gas turbine is an important component in a PDH device (propane dehydrogenation to propylene device), the axial crosstalk of the gas turbine is also an important maintenance item, the axial crosstalk is also called axial float, usually refers to the inevitable small movement of a shaft along the axial direction during operation, and the existing gas turbine mainly uses manpower during measurement.

The applicant finds that at least the following technical problems exist in the prior art: in order to meet special requirements, most modern gas turbines are large in size and heavy in weight, axial string quantity cannot be measured by force string quantity of a person alone, manpower is greatly wasted, and the measuring effect is not ideal.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gas turbine axial string volume measurement specialized tool for PDH device to solve the comparatively difficult technical problem of manual measurement axial string volume that exists among the prior art. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a gas turbine axial string volume measures specialized tool for PDH device, includes fixed plate, connecting rod, first mounting and second mounting, the air inlet department at the combustion engine is connected to the fixed plate, the through-hole has been seted up on the fixed plate, the aperture of through-hole is greater than the external diameter of connecting rod, the connecting rod is followed pass in the through-hole, the connecting rod is in the both sides of fixed plate swing joint respectively have first mounting with the second mounting, first mounting with the second mounting homoenergetic move on the connecting rod in order to adjust relative position, the one end of connecting rod with the spindle nose of combustion engine is connected, the other end and the measuring head extrusion of percentage table of connecting rod are connected.

Preferably, the connecting rod comprises a screw rod, one end of the screw rod is in threaded connection with the shaft head of the combustion engine, and the end part of the other end of the screw rod is in extrusion connection with the measuring head of the dial indicator.

Preferably, the first fixing member comprises a first nut movably connected to the screw rod.

Preferably, the second fixing member comprises a second nut, and the second nut is movably connected to the screw rod.

Preferably, a plurality of fixing holes are formed in the fixing plate, and the fixing plate is connected to the air inlet of the combustion engine through a plurality of fixing holes in a bolt mode.

Preferably, the number of the fixing holes is four, and the four fixing holes are respectively located at four corners of the fixing plate.

Preferably, the first nut is a hexagonal nut.

Preferably, the second nut is a hexagonal nut.

Preferably, the fixing plate is made of No. 45 steel plate.

Preferably, the screw rod is made of 10.9S-grade or 8.8S-grade alloy structural steel.

The utility model has the advantages that: the connecting rod has first mounting and second mounting at the both sides of fixed plate swing joint respectively, first mounting and second mounting homoenergetic are moved in order to adjust relative position on the connecting rod, when first mounting or second mounting move fixed plate department and with the fixed plate cooperation fastening when together, can restrict the connecting rod respectively along the ascending removal of two directions of axial direction, the one end of connecting rod is connected with the spindle nose of gas turbine, the other end of connecting rod is connected with the measuring head extrusion of percentage table, during the axial string volume, the spindle nose can drive connecting rod synchronous motion, the connecting rod can extrude or release the measuring head when the spindle nose drives the removal, thereby make the percentage table produce data change, overall structure is simpler, replace the manpower with mechanical mode, the comparatively difficult problem of manual measurement axial string volume has been solved, measured data is more accurate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of the present invention (with a dial indicator);

fig. 2 is a side view of the present invention;

fig. 3 is a side view of the fixing plate of the present invention;

in figure 1, a fixing plate; 11. a through hole; 12. a fixing hole;

2. a connecting rod; 21. a screw rod;

3. a first fixing member; 31. a first nut;

4. a second fixing member; 41. a second nut;

5. and (4) a dial indicator.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", and the like indicate orientations or positional relationships based on those shown in fig. 1, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Example 1

Referring to fig. 1 to 3, the embodiment provides a special tool for measuring axial flow of a gas turbine of a PDH device, comprising a fixing plate 1, a connecting rod 2, a first fixing member 3 and a second fixing member 4, wherein the fixing plate 1 is connected to an air inlet of a combustion engine, where the connection is detachable, the fixing plate 1 is provided with a through hole 11, the through hole 11 has a diameter larger than the outer diameter of the connecting rod 2, so that the connecting rod 2 can pass through the through hole 11, and the outer diameter of the connecting rod 2 can not contact with the wall of the through hole 11, the connecting rod 2 is movably connected with the first fixing member 3 and the second fixing member 4 on two sides of the fixing plate 1, the first fixing member 3 and the second fixing member 4 can move on the connecting rod 2 to adjust the relative positions, when the first fixing member 3 or the second fixing member 4 moves to the fixing plate 1 and is fastened with the fixing plate 1, the axial displacement of the connecting rod 2 along two axial directions can be limited respectively, one end of the connecting rod 2 is connected with a shaft head of a gas turbine, the shaft head can drive the connecting rod 2 to move synchronously when the axial displacement is measured, the other end of the connecting rod 2 is connected with a measuring head of a dial indicator in an extrusion manner, and the measuring head can be extruded or released when the connecting rod 2 moves under the driving of the shaft head, so that the dial indicator generates data change, the whole structure is simpler, manpower is replaced by a mechanical mode, the problem that the axial displacement is difficult to measure manually is solved, and the measured data is more accurate;

regarding the specific usage of the first fixing element 3 and the second fixing element 4, taking the left-right direction in fig. 1 as an example, when the axial crosstalk of the crankshaft in the left direction along the axial direction needs to be measured, the connection between the second fixing element 4 located on the right side and the fixed plate 1 needs to be released, a manner of moving the second fixing element 4 a sufficient distance away from the first fixing element 3 or removing the second fixing element in advance can be adopted, at this time, when the connecting rod 2 moves in the right direction, the first fixing element 3 can be matched with the fixed plate 1 to form a block, so that the crankshaft can only move in the left direction, at this time, the measuring head of the dial indicator can be released, and the axial crosstalk of the combustion engine can be measured by observing the data change of the dial indicator;

when the right axial string quantity of the crankshaft along the axial direction needs to be measured, the connection between the first fixing piece 3 positioned on the left side and the fixing plate 1 needs to be released, a mode that the first fixing piece 3 moves a sufficient distance towards the direction far away from the second fixing piece 4 or is detached in advance can be adopted, at the moment, when the connecting rod 2 moves leftwards, the second fixing piece 4 can be matched with the fixing plate 1 to form a barrier, so that the crankshaft can only move rightwards, at the moment, the measuring head of the dial indicator 5 can be extruded, and the axial string quantity of the combustion engine is measured by observing the data change of the dial indicator 5;

this measure specialized tool when specifically using, can install fixed plate 1 in the air inlet department of combustion engine earlier, fix the position of fixed plate 1, pass connecting rod 2 in the through-hole 11 on the fixed plate 1, twist the screw hole of solid at the combustion engine spindle nose, adjust the position of first mounting 3 and second mounting 4, the top of adorning the lead screw 21 other end to percentage table 5 contacts with the lead screw, adjust the range of percentage table 5, through adjusting the position of first mounting 3 and second mounting 4, observe the data change of percentage table 5, can be accurate convenient measure the axial string volume of combustion engine.

As an optional embodiment, the connecting rod 2 comprises a screw rod 21, one end of the screw rod 21 is in threaded connection with a shaft head of the combustion engine, the end of the other end of the screw rod 21 is in extrusion connection with a measuring head of the dial indicator 5, the outer surface of the screw rod 21 is provided with an external thread, the shaft head of the combustion engine is provided with a screw hole with an internal thread, and the screw rod 21 can be directly in threaded connection with the shaft head of the combustion engine, so that the operation is convenient and fast.

As an optional implementation manner, a plurality of fixing holes 12 are formed in the fixing plate 1, and the fixing plate 1 is bolted to an air inlet of the combustion engine through the plurality of fixing holes 12, in this embodiment, the number of the fixing holes 12 is preferably four, and the four fixing holes 12 are respectively located at four corners of the fixing plate 1 to balance the stress.

As an alternative embodiment, the fixing plate 1 is made of No. 45 steel plate, the No. 45 steel plate has high strength, and the fixing plate 1 made of the steel plate can be effectively fixed at an air inlet of a combustion engine and can resist deformation and bear pressure and tension.

As an alternative embodiment, the screw 21 is made of 10.9S-grade or 8.8S-grade alloy structural steel, and the 10.9S-grade or 8.8S-grade alloy structural steel belongs to high-strength alloy structural steel, and the screw 21 made of the screw has high enough strength to resist deformation and bear pressure and tension.

Example 2

Example 2 differs from example 1 in that: the first fixing part 3 comprises a first nut 31, the first nut 31 is movably connected to the screw rod 21, the second fixing part 4 comprises a second nut 41, the second nut 41 is movably connected to the screw rod 21, the first nut 31 and the second nut 41 both belong to nut structures, the nut structures can be matched with the screw rod 21 and rotate under the action of external force, namely, the movement on the screw rod 21 can be achieved, and the mounting and dismounting are very convenient and the cost is low.

As an alternative embodiment, the first nut 31 is a hexagonal nut, which is widely used as the most common nut form, so that the purchase cost is lower, and if the first nut is lost, the first nut can be easily found to be replaced at the operation site.

As an alternative embodiment, the second nut 41 is a hexagonal nut, which is widely used as the most common nut form, so that the purchase cost is lower, and if the nut is lost, the replacement can be easily found and replaced at the operation site.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A gas turbine axial crosstalk measurement specialized tool for a PDH device is characterized by comprising a fixing plate (1), a connecting rod (2), a first fixing piece (3) and a second fixing piece (4), wherein: the utility model discloses a fuel gas turbine engine, including fixed plate (1), through-hole (11) have been seted up on fixed plate (1), the aperture of through-hole (11) is greater than the external diameter of connecting rod (2), connecting rod (2) are followed pass in through-hole (11), connecting rod (2) are in the both sides difference swing joint of fixed plate (1) have first mounting (3) with second mounting (4), first mounting (3) with second mounting (4) all can move in order to adjust relative position on connecting rod (2), the one end of connecting rod (2) with the spindle nose of fuel gas turbine is connected, the other end of connecting rod (2) is connected with the measuring head extrusion of percentage table (5).

2. A gas turbine axial cross-talk measurement specialized tool for a PDH device as defined in claim 1, wherein: the connecting rod (2) comprises a screw rod (21), one end of the screw rod (21) is in threaded connection with the shaft head of the combustion engine, and the end part of the other end of the screw rod (21) is connected with the measuring head of the dial indicator (5) in an extruding mode.

3. A gas turbine axial cross-talk measurement specialized tool for a PDH device as defined in claim 2, wherein: the first fixing piece (3) comprises a first nut (31), and the first nut (31) is movably connected to the screw rod (21).

4. A gas turbine axial cross-talk measurement specialized tool for a PDH device as defined in claim 2, wherein: the second fixing piece (4) comprises a second nut (41), and the second nut (41) is movably connected to the screw rod (21).

5. A gas turbine axial cross-talk measurement specialized tool for a PDH device as defined in claim 1, wherein: a plurality of fixing holes (12) are formed in the fixing plate (1), and the fixing plate (1) is connected to the air inlet of the combustion engine through a plurality of fixing holes (12) in a bolted mode.

6. A gas turbine axial cross-talk measurement specialized tool for a PDH device as defined in claim 5, wherein: the number of the fixing holes (12) is four, and the four fixing holes (12) are respectively positioned at four corners of the fixing plate (1).

7. A gas turbine axial cross-talk measurement specialized tool for a PDH device as defined in claim 3, wherein: the first nut (31) is a hexagonal nut.

8. The gas turbine axial cross-talk measurement specialized tool for a PDH device as defined in claim 4, wherein: the second nut (41) is a hexagonal nut.

9. A gas turbine axial cross-talk measurement specialized tool for a PDH device as defined in claim 1, wherein: the fixing plate (1) is made of No. 45 steel plates.

10. A gas turbine axial cross-talk measurement specialized tool for a PDH device as defined in claim 2, wherein: the screw rod (21) is made of 10.9S-grade or 8.8S-grade alloy structural steel.