CN114112090B - Novel temperature thermocouple for steam turbine set - Google Patents
Novel temperature thermocouple for steam turbine set Download PDFInfo
- Publication number
- CN114112090B CN114112090B CN202210103633.XA CN202210103633A CN114112090B CN 114112090 B CN114112090 B CN 114112090B CN 202210103633 A CN202210103633 A CN 202210103633A CN 114112090 B CN114112090 B CN 114112090B
- Authority
- CN
- China
- Prior art keywords
- rod
- sliding
- hole
- extrusion
- hollow
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention discloses a novel temperature thermocouple for a steam turbine unit, which comprises a temperature measuring mechanism, a temperature measuring mechanism and a control mechanism, wherein the temperature measuring mechanism comprises a protection pipe, an armored thermocouple wire and sealing elements, one end of the armored thermocouple wire is arranged in the protection pipe, and the sealing elements are arranged on the armored thermocouple wire at intervals; the fixing mechanism comprises a hollow fixing box with an upward opening, a sealing block arranged at the opening at the upper end of the hollow fixing box, a hollow pipe communicated with the middle parts of two sides of the hollow fixing box, an expansion assembly matched with the hollow pipe, an extrusion assembly matched with the expansion assembly, and a containing box sleeved outside the expansion assembly and the extrusion assembly, wherein one end of the armored thermocouple wire and the sealing element are arranged in the hollow fixing box; the temperature measuring mechanism further improves the stability and the sealing property of the temperature measuring mechanism in the using process through the expansion assembly and the extrusion assembly in the fixing mechanism.
Description
Technical Field
The invention relates to the technical field of thermal power generation, in particular to a novel temperature thermocouple for a steam turbine set.
Background
Thermal power generation generally refers to a general name of a mode of heating water by using heat energy generated when fuels such as coal, petroleum, natural gas and the like are combusted, so that the water is changed into high-temperature and high-pressure steam, and then a generator is driven by the steam to generate electricity, Chinese thermal power plants mainly use coal, the temperature difference between an upper cylinder and a lower cylinder of a steam turbine is one of important indexes for unit control, the temperature of a cylinder is accurately monitored and measured, the temperature difference of the cylinder is controlled to be within an allowable range, so that the safety of a unit is ensured, the temperature of the high-pressure cylinder and the medium-pressure cylinder of most steam turbines in China is measured for many years, foreign imported thermocouple elements are always selected, the thermocouple elements have the following defects in use, firstly, lead-out wires of imported thermocouple elements are welded with terminals in a protective sleeve in a tin soldering mode, tin removal is easy to cause the disconnection of a measuring loop, so that the cylinder temperature shows a bad point, and secondly, the thermocouple elements are led out from the inner cylinder of the steam turbine and are sealed by a hoop, the clamp is easy to clamp in the base after installation, and can only be cut off for overhauling again, and due to the defects, the safe and stable operation of the steam turbine set is influenced to a great extent, so that a novel temperature thermocouple for the steam turbine set is provided.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The invention is provided in view of the problems existing in the novel temperature thermocouple for the existing turboset.
Therefore, the problem to be solved by the present invention is how to prolong the service life of the thermocouple and improve the sealing effect at the junction.
In order to solve the technical problems, the invention provides the following technical scheme: a novel temperature thermocouple for a steam turbine set comprises a temperature measuring mechanism, a temperature measuring mechanism and a temperature measuring mechanism, wherein the temperature measuring mechanism comprises a protection tube, an armored thermocouple wire and a sealing element, one end of the armored thermocouple wire is arranged in the protection tube, and the sealing element is arranged on the armored thermocouple wire; and the fixing mechanism comprises a hollow fixing box with an upward opening, a sealing block arranged at the upper end opening of the hollow fixing box, a hollow pipe communicated with the middle parts of two sides of the hollow fixing box, an expansion assembly matched with the hollow pipe, an extrusion assembly matched with the expansion assembly, and a holding box sleeved on the expansion assembly and the outside of the extrusion assembly, wherein one end of the armored thermocouple wire is arranged in the hollow fixing box together with the sealing element.
As a preferred scheme of the novel temperature thermocouple for the steam turbine unit of the present invention, wherein: first through-hole has been seted up at hollow fixed box bottom center, the sealing member includes first graphite packing and second graphite packing, the protection tube set up in the bottom center department of second graphite packing, the size of first through-hole is less than second graphite packing, second graphite packing bottom overlap joint in first through-hole department.
As a preferred scheme of the novel temperature thermocouple for the steam turbine unit of the present invention, wherein: the outer wall of the sealing block and the inner wall of the hollow fixing box are in interference fit, a second through hole is formed in the middle of the sealing block, the size of the second through hole is smaller than that of the first graphite packing, a lifting rod is arranged at the top end of the sealing block, and chamfers are arranged on two sides of the bottom end of the sealing block.
As a preferred scheme of the novel temperature thermocouple for the steam turbine unit of the present invention, wherein: the expansion assembly comprises a sliding rod arranged in the hollow pipe in a sliding mode, an upper group of rotating seats and a lower group of rotating seats are symmetrically arranged on the end face of one end of the sliding rod, and the rotating seats are rotatably connected with supporting pieces through rotating shafts.
As a preferred scheme of the novel temperature thermocouple for the steam turbine unit, the invention comprises the following steps: the supporting piece comprises a first supporting rod rotatably connected with the rotating seat, an inner cavity is formed in one end of the first supporting rod, a second supporting rod is inserted into the inner cavity of the first supporting rod in a sliding mode, a first spring is fixedly connected between the bottom wall of the inner cavity of the first supporting rod and one end of the second supporting rod, and a pressing plate is fixedly arranged at the other end of the second supporting rod.
As a preferred scheme of the novel temperature thermocouple for the steam turbine unit of the present invention, wherein: one of the two pressing plates located above is connected with a second spring, the other end of the second spring is arranged in the middle of the side wall of the hollow fixing box, the pressing plates are made of aluminum materials, and the supporting piece further comprises a first toothed plate arranged at the other end of the sliding rod.
As a preferred scheme of the novel temperature thermocouple for the steam turbine unit of the present invention, wherein: the extrusion subassembly including set up in the slide hole of hollow fixed box both sides upper end, slide the hole site in one side of first pinion rack, first spout has been seted up to the both sides in slide hole, slide downthehole first stripper, the both sides of first stripper slide through the slide bar set up in the first spout, first stripper one end is equipped with the cavity, it has the second stripper to slide to peg graft in the cavity of first stripper, the one end of second stripper is provided with the inclined plane, the other end of second stripper with be provided with the third spring between the diapire of first stripper inner chamber.
As a preferred scheme of the novel temperature thermocouple for the steam turbine unit of the present invention, wherein: the other end of the first extrusion rod is provided with a first limiting frame, a second toothed plate is arranged in the first limiting frame, a second sliding groove is formed in the side wall of the second toothed plate, a threaded hole is formed in one side of the first limiting frame and corresponds to the second sliding groove, a bolt is connected to the threaded hole in an internal thread mode, the second toothed plate faces to one side of the hollow fixing box, a third sliding groove is formed in the hollow fixing box and corresponds to the third sliding groove, a limiting rod is arranged at the position of the hollow fixing box and corresponds to the third sliding groove, and one end of the limiting rod extends into the third sliding groove.
As a preferred scheme of the novel temperature thermocouple for the steam turbine unit of the present invention, wherein: the extrusion subassembly still include with the wide body gear of first pinion rack looks meshing, the both sides of wide body gear rotate through first dwang connect in the lateral wall of holding box, top one side of wide body gear is provided with the gear, the gear respectively with the second pinion rack with the wide body gear meshes mutually, the gear rotate through the second dwang connect in the lateral wall of holding box.
As a preferred scheme of the novel temperature thermocouple for the steam turbine unit of the present invention, wherein: the accommodating box is provided with a first square hole at a position corresponding to the first toothed plate, a second square hole at a position corresponding to the second toothed plate, a second limiting frame is arranged above the first square hole, and a clamping sheet is arranged in the second limiting frame in a sliding manner.
The invention has the beneficial effects that: but through the thermocouple of fixing mechanism cooperation temperature measuring mechanism rapid stabilization install and fix to reduced the manpower loss, through expansion subassembly and the further stability and the leakproofness of improvement thermocouple in the use of extrusion subassembly in the fixing mechanism, not only improved sealed effect, still can avoid the sealed easy card of clamp to die the phenomenon in the base.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
FIG. 1 is a pictorial view of a novel temperature thermocouple for a steam turbine set.
Fig. 2 is a structural diagram of a temperature measuring mechanism in the novel temperature measuring thermocouple for the steam turbine set.
Fig. 3 is a structural view of the bottom view angle of the fixing mechanism in the novel temperature thermocouple for the steam turbine set.
Fig. 4 is an internal structure view of the novel temperature thermocouple for a steam turbine unit.
FIG. 5 is a structural diagram of an expanding assembly and a squeezing assembly in the novel temperature thermocouple for the steam turbine set.
FIG. 6 is a cross-sectional view of a support member in the novel temperature thermocouple for a steam turbine assembly.
FIG. 7 is a cross-sectional view of the connection of a first extrusion stem and a second extrusion stem of the novel temperature thermocouple for a steam turbine set.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 5, a first embodiment of the present invention provides a novel thermocouple for a steam turbine set, which includes a temperature measuring mechanism 100 and a fixing mechanism 200, and the expansion assembly 204 and the extrusion assembly 205 in the fixing mechanism 200 cooperate with each other to fix and seal the temperature measuring mechanism 100.
Specifically, the temperature measuring mechanism 100 comprises a protection tube 101, an armored thermocouple wire 102 with one end arranged in the protection tube 101, and a sealing element 103 arranged on the armored thermocouple wire 102; the sheathed thermocouple wire 102 is provided in a protective tube 101, the protective tube 101 protecting the sheathed thermocouple wire 102, and one end of the sheathed thermocouple wire 102 extending out of the protective tube 101 and provided with a sealing member 103.
Preferably, the fixing mechanism 200 comprises a hollow fixing box 201 with an upward opening, a sealing block 202 arranged at the opening at the upper end of the hollow fixing box 201, a hollow pipe 203 communicated with the middle parts of two sides of the hollow fixing box 201, an expansion assembly 204 matched with the hollow pipe 203, an extrusion assembly 205 matched with the expansion assembly 204, and an accommodating box 206 sleeved outside the expansion assembly 204 and the extrusion assembly 205, wherein one end of the armored thermocouple wire 102 and the sealing element 103 are arranged in the hollow fixing box 201; sealing block 202 stopper plays preliminary sealed effect at the upper end opening part of hollow fixed box 201, because the one end of armor thermocouple wire 102 sets up in hollow fixed box 201 with sealing member 103, expansion subassembly 204 with hollow tube 203 matched with plays the supporting role to sealing member 103, make sealing member 103 be fixed in hollow fixed box 201, so also play the supporting role to armor thermocouple wire 102, sealing block 202 is under extrusion assembly 205's effect simultaneously, make contact between sealing member 103 and the sealing block 202, make whole sealed effect.
Preferably, the center of the bottom of the hollow fixing box 201 is provided with a first through hole 201a, the sealing element 103 comprises a first graphite packing 103a and a second graphite packing 103b, the protection tube 101 is arranged at the center of the bottom of the second graphite packing 103b, the size of the first through hole 201a is smaller than that of the second graphite packing 103b, and the bottom end of the second graphite packing 103b is lapped at the first through hole 201 a; since the size of the first through hole 201a is smaller than that of the second graphite packing 103b, the bottom end of the second graphite packing 103b can cover the whole first through hole 201a when being lapped at the first through hole 201a, and a primary condition of sealing is achieved.
Preferably, the outer wall of the sealing block 202 is in interference fit with the inner wall of the hollow fixing box 201, a second through hole 202a is formed in the middle of the sealing block 202, the size of the second through hole 202a is smaller than that of the first graphite packing 103a, a lifting rod 202b is arranged at the top end of the sealing block 202, and chamfers are arranged on two sides of the bottom end of the sealing block 202; the second through hole 202a is smaller than the first graphite packing 103a, so when the top of the first graphite packing 103a abuts against the second through hole 202a, the second through hole 202a can be completely covered, and the condition for integral sealing is provided.
When the sealing device is used, the sealing block 202 is plugged in the opening at the upper end of the hollow fixing box 201 to play a primary sealing role, one end of the armored thermocouple wire 102 and the sealing element 103 are arranged in the hollow fixing box 201, the expansion component 204 matched with the hollow tube 203 plays a supporting role on the sealing element 103, so that the bottom end of the second graphite packing 103b in the sealing element 103 is lapped at the first through hole 201a, meanwhile, the expansion component 204 plays a supporting role on the first graphite packing 103a, so that the whole sealing element 103 is fixed in the hollow fixing box 201, so that the armored thermocouple wire 102 is also supported, meanwhile, the sealing block 202 is under the action of the extrusion component 205, so that the first graphite packing 103a is in contact with the sealing block 202, the size of the second through hole 202a is smaller than that of the first graphite packing 103a, so that when the top end of the first graphite packing 103a butts against the second through hole 202a, the second through hole 202a can completely cover the second through hole 202a, the condition is provided for integral sealing, so that the integral sealing effect is achieved, the sealing effect of the leading-out part of the armored thermocouple wire 102 is greatly improved, the response speed of the armored thermocouple wire 102 to the change of the measured temperature is improved, the lag is reduced, the mode of adopting hoop sealing is changed after the armored thermocouple wire 102 is led out from the inner cylinder of the steam turbine, the hoop is prevented from being easily clamped in a base after installation, and the hoop can only be cut off after overhauling again.
Example 2
Referring to fig. 1 to 7, a second embodiment of the present invention is based on the above embodiment.
Specifically, the expansion assembly 204 comprises a sliding rod 204a which is slidably arranged in the hollow tube 203, an upper group and a lower group of rotating seats 204a-1 are symmetrically arranged on one end face of the sliding rod 204a, and the rotating seats 204a-1 are rotatably connected with a supporting piece 204b through a rotating shaft; the support member 204b is rotatable about the rotation seat 204 a-1.
Preferably, the supporting member 204b comprises a first supporting rod 204b-1 rotatably connected with the rotating base 204a-1, an inner cavity is formed at one end of the first supporting rod 204b-1, a second supporting rod 204b-2 is inserted into the inner cavity of the first supporting rod 204b-1 in a sliding manner, a first spring 204b-3 is fixedly connected between the bottom wall of the inner cavity of the first supporting rod 204b-1 and one end of the second supporting rod 204b-2, and a pressing plate 204b-4 is fixedly arranged at the other end of the second supporting rod 204 b-2; the second support rod 204b-2 is compressed into the cavity of the first support rod 204b-1, and acts on the pressing plate 204b-4 due to the elastic force of the first spring 204 b-3.
Preferably, the upper one of the two pressing plates 204b-4 is connected with a second spring 204b-5, the other end of the second spring 204b-5 is disposed in the middle of the sidewall of the hollow fixing box 201, the pressing plate 204b-4 is made of aluminum material, and the supporting member 204b further includes a first toothed plate 204b-6 disposed at the other end of the sliding rod 204 a; when the two supporting pieces 204b extend out of the hollow tube 203, the upper one of the two pressing plates 204b-4 rotates toward the first graphite packing 103a under the action of the second spring 204b-5, and the lower one of the two pressing plates 204b-4 rotates toward the second graphite packing 103b under the action of its own gravity.
Preferably, the extrusion assembly 205 comprises sliding holes 205a arranged at the upper ends of the two sides of the hollow fixing box 201, the sliding holes 205a are located at one side of the first toothed plate 204b-6, the two sides of the sliding holes 205a are provided with first sliding grooves 205a-1, a first extrusion rod 205b is arranged in the sliding holes 205a, the two sides of the first extrusion rod 205b are slidably arranged in the first sliding grooves 205a-1 through sliding rods 205b-1, one end of the first extrusion rod 205b is provided with a cavity, a second extrusion rod 205c is slidably inserted in the cavity of the first extrusion rod 205b, one end of the second extrusion rod 205c is provided with an inclined surface, and a third spring 205d is arranged between the other end of the second extrusion rod 205c and the bottom wall of the cavity of the first extrusion rod 205 b; when the sealing block 202 is pressed down from the opening at the upper end of the hollow fixing box 201, because the two sides of the bottom end of the sealing block 202 are provided with chamfers, the chamfers of the sealing block 202 press the inclined surface at one end of the second extrusion rod 205c, so that the second extrusion rod 205c is pressed into the cavity at one end of the first extrusion rod 205b, and after the sealing block 202 is completely pressed in, the second extrusion rod 205c is reset under the action of the third spring 205 d.
Preferably, the other end of the first extrusion rod 205b is provided with a first limit frame 205e, a second gear plate 205f is arranged in the first limit frame 205e, the side wall of the second gear plate 205f is provided with a second chute 205f-1, one side of the first limit frame 205e is provided with a threaded hole 205e-1 corresponding to the second chute 205f-1, the threaded hole 205e-1 is connected with a bolt 205e-2 through an internal thread, one side of the second gear plate 205f facing the hollow fixing box 201 is provided with a third chute 205f-2, a limit rod 205g is arranged at a position of the hollow fixing box 201 corresponding to the third chute 205f-2, and one end of the limit rod 205g extends into the third chute 205 f-2; after the height of the first pressing rod 205b in the sliding hole 205a is adjusted, the bolt 205e-2 is tightened, so that the bolt 205e-2 is tightly pressed against the second sliding groove 205 f-1.
Preferably, the pressing assembly 205 further comprises a wide gear 205h engaged with the first toothed plate 204b-6, two sides of the wide gear 205h are rotatably connected to the side wall of the accommodating box 206 through a first rotating rod 205h-1, a gear 205i is arranged on one side above the wide gear 205h, the gear 205i is respectively engaged with the second toothed plate 205f and the wide gear 205h, and the gear 205i is rotatably connected to the side wall of the accommodating box 206 through a second rotating rod 205 i-1; when the first toothed plate 204b-6 is pushed, the first toothed plate 204b-6 drives the wide gear 205h to rotate, the wide gear 205h drives the gear 205i to rotate, the gear 205i drives the second toothed plate 205f to move downwards, and the second toothed plate 205f drives the second extrusion rod 205c to extrude the sealing block 202, so that the top end of the first graphite packing 103a is abutted against the second through hole 202a of the sealing block 202, and a sealing condition is created.
Preferably, a first square hole 206a is formed in the position of the accommodating box 206 corresponding to the first toothed plate 204b-6, a second square hole 206b is formed in the position of the accommodating box 206 corresponding to the second toothed plate 205f, a second limiting frame 206c is arranged above the first square hole 206a, and a clamping sheet 206d is slidably arranged in the second limiting frame 206 c; when the first tooth plate 204b-6 is pushed to the proper position, the latch piece 206d latches the teeth on the first tooth plate 204b-6, preventing the first tooth plate 204b-6 from shifting, so that the sealing state in the hollow fixing box 201 is broken.
When in use, after the height of the first extrusion rod 205b in the sliding hole 205a is adjusted, the bolt 205e-2 is tightened, the bolt 205e-2 tightly abuts against the second sliding groove 205f-1, the sealing block 202 is plugged in the upper end opening of the hollow fixing box 201 and is pressed downwards, because the two sides of the bottom end of the sealing block 202 are provided with chamfers, the chamfers of the sealing block 202 press the inclined surface of one end of the second extrusion rod 205c, so that the second extrusion rod 205c is pressed into the cavity at one end of the first extrusion rod 205b, after the sealing block 202 is completely pressed in, the second extrusion rod 205c is reset under the action of the third spring 205d, and the bottom end of the second extrusion rod 205c abuts against the top end of the sealing block 202, the first toothed plate 204b-6 is pushed slowly, the first toothed plate 204b-6 pushes the sliding rod 204a to slide forwards, when the two supporting pieces 204b extend out of the hollow tube 203, the upper one of the two pressing plates 204b-4 rotates towards the first graphite packing 103a under the action of the second spring 204b-5, the lower one of the two pressing plates 204b-4 rotates towards the second graphite packing 103b under the action of its own gravity until the two pressing plates 204b-4 tightly press against the first graphite packing 103a and the second graphite packing 103b, the wide gear 205h is driven to rotate when the first toothed plate 204b-6 is pushed, the wide gear 205h drives the gear 205i to rotate, the gear 205i drives the second toothed plate 205f to move downwards, the second toothed plate 205f drives the second extrusion rod 205c to extrude the sealing block 202, so that the top end of the first graphite packing 103a presses against the second through hole 202a of the sealing block 202, until the lower part of the first graphite packing 103a is balanced with the pressure of the upper part of the first graphite packing 103a by the action of the pressing plate 204b-4, the second graphite packing 103b and the first graphite packing 103a are suitable for dynamic sealing under high temperature and high pressure conditions due to the materials of the second graphite packing 103b and the first graphite packing 103a, can be used for sealing media such as hot water, superheated steam, heat transfer fluid, ammonia solution, low temperature liquid and the like, the sealing effect of the leading-out part of the armored thermocouple wire 102 is greatly improved through the second graphite packing 103b and the first graphite packing 103a, when the sealing is not tight enough, the heat in the steam turbine set is emitted from the first through hole 201a of the hollow fixing box 201, and because the pressing plate 204b-4 is made of aluminum material, the pressing plate 204b-4 is heated and expands to more tightly press the second graphite packing 103b, the sealing state is better, and when the first tooth plate 204b-6 is pushed to the proper position, the clamping sheet 206d clamps the teeth on the first tooth plate 204b-6, so as to prevent the first tooth plate 204b-6 from shifting, and the sealing state in the hollow fixing box 201 is damaged.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (4)
1. The utility model provides a steam turbine is novel temperature thermocouple for unit which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the temperature measuring mechanism (100) comprises a protection pipe (101), an armored thermocouple wire (102) with one end arranged in the protection pipe (101), and a sealing element (103) arranged on the armored thermocouple wire (102); the fixing mechanism (200) comprises a hollow fixing box (201) with an upward opening, a sealing block (202) arranged at the opening at the upper end of the hollow fixing box (201), a hollow pipe (203) communicated with the middle parts of two sides of the hollow fixing box (201), an expansion assembly (204) matched with the hollow pipe (203), an extrusion assembly (205) matched with the expansion assembly (204), and an accommodating box (206) sleeved outside the expansion assembly (204) and the extrusion assembly (205), wherein one end of the armored thermocouple wire (102) and the sealing element (103) are arranged in the hollow fixing box (201);
the expansion assembly (204) comprises a sliding rod (204a) which is arranged in the hollow tube (203) in a sliding manner, an upper group of rotating seats (204a-1) and a lower group of rotating seats (204a-1) are symmetrically arranged on one end face of the sliding rod (204a), and the rotating seats (204a-1) are rotatably connected with a supporting piece (204b) through rotating shafts;
the supporting piece (204b) comprises a first supporting rod (204b-1) rotatably connected with the rotating seat (204a-1), an inner cavity is formed in one end of the first supporting rod (204b-1), a second supporting rod (204b-2) is inserted into the inner cavity of the first supporting rod (204b-1) in a sliding mode, a first spring (204b-3) is fixedly connected between the bottom wall of the inner cavity of the first supporting rod (204b-1) and one end of the second supporting rod (204b-2), and a pressing plate (204b-4) is fixedly arranged at the other end of the second supporting rod (204 b-2);
a second spring (204b-5) is connected to the upper one of the two pressing plates (204b-4), the other end of the second spring (204b-5) is arranged in the middle of the side wall of the hollow fixing box (201), the pressing plate (204b-4) is made of aluminum material, and the support (204b) further comprises a first toothed plate (204b-6) arranged at the other end of the sliding rod (204 a);
the extrusion component (205) comprises sliding holes (205a) arranged at the upper ends of the two sides of the hollow fixed box (201), the sliding hole (205a) is positioned at one side of the first toothed plate (204b-6), a first sliding groove (205a-1) is formed in each of two sides of the sliding hole (205a), a first extrusion rod (205b) is arranged in the sliding hole (205a), two sides of the first extrusion rod (205b) are arranged in the first sliding groove (205a-1) in a sliding manner through a sliding rod (205b-1), one end of the first extrusion rod (205b) is provided with a cavity, a second extrusion rod (205c) is inserted in the cavity of the first extrusion rod (205b) in a sliding way, an inclined surface is arranged at one end of the second extrusion rod (205c), and a third spring (205d) is arranged between the other end of the second extrusion rod (205c) and the bottom wall of the inner cavity of the first extrusion rod (205 b);
the other end of the first extrusion rod (205b) is provided with a first limit frame (205e), a second toothed plate (205f) is arranged in the first limit frame (205e), a second sliding groove (205f-1) is formed in the side wall of the second toothed plate (205f), a threaded hole (205e-1) is formed in a position, corresponding to the second sliding groove (205f-1), on one side of the first limiting frame (205e), a bolt (205e-2) is connected with the threaded hole (205e-1) in an internal thread manner, a third sliding groove (205f-2) is formed in one side, facing the hollow fixing box (201), of the second toothed plate (205f), a limiting rod (205g) is arranged at the position of the hollow fixing box (201) corresponding to the third sliding groove (205f-2), one end of the limiting rod (205g) extends into the third sliding groove (205 f-2);
the extrusion assembly (205) further comprises a wide gear (205h) engaged with the first toothed plate (204b-6), two sides of the wide gear (205h) are rotatably connected to the side wall of the accommodating box (206) through a first rotating rod (205h-1), one side of the upper side of the wide gear (205h) is provided with a gear (205i), the gear (205i) is respectively engaged with the second toothed plate (205f) and the wide gear (205h), and the gear (205i) is rotatably connected to the side wall of the accommodating box (206) through a second rotating rod (205 i-1).
2. The novel temperature thermocouple for a steam turbine unit according to claim 1, wherein: first through-hole (201a) has been seted up at hollow fixed box (201) bottom center, sealing member (103) include first graphite packing (103a) and second graphite packing (103b), protection tube (101) set up in the bottom center department of second graphite packing (103b), the size of first through-hole (201a) is less than second graphite packing (103b), second graphite packing (103b) bottom overlap joint in first through-hole (201a) department.
3. The novel temperature thermocouple for a steam turbine unit according to claim 2, wherein: the outer wall of the sealing block (202) and the inner wall of the hollow fixing box (201) are in interference fit, a second through hole (202a) is formed in the middle of the sealing block (202), the size of the second through hole (202a) is smaller than that of the first graphite packing (103a), a lifting rod (202b) is arranged at the top end of the sealing block (202), and chamfers are arranged on two sides of the bottom end of the sealing block (202).
4. The novel temperature thermocouple for a steam turbine unit according to claim 3, wherein: a first square hole (206a) is formed in the position, corresponding to the first toothed plate (204b-6), of the accommodating box (206), a second square hole (206b) is formed in the position, corresponding to the second toothed plate (205f), of the accommodating box (206), a second limiting frame (206c) is arranged above the first square hole (206a), and a clamping sheet (206d) is arranged in the second limiting frame (206c) in a sliding mode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210103633.XA CN114112090B (en) | 2022-01-28 | 2022-01-28 | Novel temperature thermocouple for steam turbine set |
| PCT/CN2022/131855 WO2023142612A1 (en) | 2022-01-28 | 2022-11-15 | Novel temperature measurement thermocouple for steam turbine set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210103633.XA CN114112090B (en) | 2022-01-28 | 2022-01-28 | Novel temperature thermocouple for steam turbine set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114112090A CN114112090A (en) | 2022-03-01 |
| CN114112090B true CN114112090B (en) | 2022-05-06 |
Family
ID=80361842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210103633.XA Active CN114112090B (en) | 2022-01-28 | 2022-01-28 | Novel temperature thermocouple for steam turbine set |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114112090B (en) |
| WO (1) | WO2023142612A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112090B (en) * | 2022-01-28 | 2022-05-06 | 华能平凉发电有限责任公司 | Novel temperature thermocouple for steam turbine set |
| CN117367591B (en) * | 2023-12-04 | 2024-03-08 | 山东恒圣石墨科技有限公司 | Thermal parameter detection equipment for graphite heater |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4830515A (en) * | 1987-12-28 | 1989-05-16 | Omega Engineering, Inc. | Mounting clip for a thermocouple assembly |
| US5860580A (en) * | 1996-05-03 | 1999-01-19 | Illinois Tool Works Inc. | Piston retention device for combustion-powered tools |
| JP3696767B2 (en) * | 1999-12-28 | 2005-09-21 | 東京電力株式会社 | Gas turbine exhaust gas temperature measuring device |
| CN104111124A (en) * | 2014-08-06 | 2014-10-22 | 大唐双鸭山热电有限公司 | Anti-corrosion device of temperature element of high-pressure cylinder of steam turbine |
| CN104596661B (en) * | 2015-02-13 | 2017-09-26 | 重庆材料研究院有限公司 | Thermometric armoured thermocouple |
| CN204646343U (en) * | 2015-04-28 | 2015-09-16 | 河南第一火电建设公司 | Control Stage of Steam Turbine vapor (steam) temperature temperature measuring equipment |
| CN205691254U (en) * | 2016-06-23 | 2016-11-16 | 国网山东省电力公司电力科学研究院 | A kind of fixing attemperator testing special electric thermo-couple |
| CN207964110U (en) * | 2018-02-09 | 2018-10-12 | 天津市中环温度仪表有限公司 | A kind of Drain Resistance formula stop valve armoured thermocouple |
| CN210154706U (en) * | 2019-07-26 | 2020-03-17 | 宝应县欧达电子陶瓷有限公司 | Thermocouple installation fastener |
| CN211317559U (en) * | 2020-03-12 | 2020-08-21 | 上海庆先科技有限公司 | Thermocouple temperature measuring device |
| CN213543832U (en) * | 2020-11-13 | 2021-06-25 | 沈阳宇光温度仪表有限公司 | Composite high-temperature impact-resistant thermocouple |
| CN113125025B (en) * | 2021-03-24 | 2022-10-11 | 中国科学院金属研究所 | Vacuum thermal field temperature measurement armored thermocouple dismounting device and temperature measurement method |
| CN214748504U (en) * | 2021-04-15 | 2021-11-16 | 靖江市扬子仪表有限公司 | Armored thermocouple combination structure |
| CN215262140U (en) * | 2021-07-29 | 2021-12-21 | 兴安热电有限责任公司 | Wear-resisting thermocouple protective sleeve |
| CN114112090B (en) * | 2022-01-28 | 2022-05-06 | 华能平凉发电有限责任公司 | Novel temperature thermocouple for steam turbine set |
-
2022
- 2022-01-28 CN CN202210103633.XA patent/CN114112090B/en active Active
- 2022-11-15 WO PCT/CN2022/131855 patent/WO2023142612A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN114112090A (en) | 2022-03-01 |
| WO2023142612A1 (en) | 2023-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114112090B (en) | Novel temperature thermocouple for steam turbine set | |
| MX173783B (en) | METACARBON INTEGRATED COMBINED CYCLE POWER PLANTS | |
| CN211018111U (en) | Foldable cable fixing device of thermal power plant | |
| CN202442514U (en) | Solar hollow glass pipe thermoelectric integrated device | |
| CN109184918A (en) | gas turbine | |
| CN210923262U (en) | Pressure pipeline hydrostatic test device | |
| CN209655263U (en) | A kind of combustion gas, fuel oil boiler for dual purpose | |
| CN208859855U (en) | Unitized combustion boiler convenient to installation | |
| CN202032543U (en) | Steam generator | |
| CN214850338U (en) | Generator enclosed bus box body connecting structure | |
| KR101064322B1 (en) | Boiler using heat pipe | |
| CN211093356U (en) | Light wave rice steaming cabinet | |
| CN217321914U (en) | Power plant coal conveying belt temperature measuring device based on high flexibility ratio | |
| CN210219704U (en) | Novel steam generator | |
| CN217024301U (en) | Coal feeder coal dropping pipe flashboard device | |
| CN204301285U (en) | Biomass combustion chamber and heat exchange flue system ectosome | |
| CN219510774U (en) | Vertical steam boiler of high security | |
| CN217737165U (en) | Automatic ignition boiler with hearth safety protection structure | |
| CN206439860U (en) | A kind of wall-hung boiler with blowout protection function | |
| CN219595881U (en) | Rotary evaporator | |
| CN203823752U (en) | Gas cooking range | |
| CN221122164U (en) | Electric heating steam generator | |
| CN217503626U (en) | Water-steam separation device for boiler | |
| CN213302310U (en) | Fireproof and heat-insulation three-phase electric energy meter | |
| CN112833419A (en) | Device for observing high-temperature running state in furnace chamber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |