CN213515381U

CN213515381U - Measure device of boiler diaphragm type wall pipe outer wall volume of reducing

Info

Publication number: CN213515381U
Application number: CN202022764636.7U
Authority: CN
Inventors: 张广兴
Original assignee: Guoneng Boiler And Pressure Vessel Inspection Co ltd
Current assignee: Guoneng Boiler And Pressure Vessel Inspection Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-06-22
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a device for measuring the thinning amount of the outer wall of a membrane wall pipe of a boiler, which comprises an arc-shaped steel ring, a universal ball with a magnetic ball, a sleeve, a main scale and a positioning bolt, a plurality of through holes are arranged at equal intervals in the horizontal direction of the arc-shaped steel ring, the axes of the through holes pass through the center of the arc-shaped steel ring, a plurality of positioning holes are arranged in the vertical direction of the arc-shaped steel ring corresponding to the through holes, the positioning holes and the corresponding through holes are in an inverted T shape, threads matched with the positioning bolts are arranged in the positioning holes, a plurality of sleeves respectively penetrate through the corresponding through holes, two ends of each sleeve respectively extend out of the inner side and the outer side of the arc-shaped steel ring, and fixed through positioning bolt, all install the main scale in the sleeve, the both ends of main scale all stretch out telescopic both ends and can slide in the sleeve, and the main scale stretches out the sleeve and is located the inboard one end of arc steel loop and all installs universal ball. The device has improved efficiency and accuracy to boiler membrane type wall pipe outer wall decrement volume detection.

Description

Measure device of boiler diaphragm type wall pipe outer wall volume of reducing

Technical Field

The utility model relates to a boiler diaphragm type wall pipe outer wall subtracts thin volume measurement technical field, concretely relates to measure device of boiler diaphragm type wall pipe outer wall subtract thin volume.

Background

The small diameter tube of the boiler generally has various structural forms, such as a water wall tube, a wall wrapping tube, etc., fins on both sides of the tube are welded together to form a furnace wall and a flue, the tube is called a membrane wall tube, and the membrane wall tube of the boiler is generally made of low alloy steel, carbon steel, T91 material, etc.

The thinning of the outer wall is a common defect of small-diameter pipes in the operation of a boiler, mainly caused by blowing loss of fly ash, steam blowing loss, equipment abrasion and the like, and particularly the situation of blowing loss thinning can often occur near areas such as water-cooled wall burners, flame folding angles and the like. If the thinning of the outer wall of the small-diameter pipe exceeds a specified value and is not detected in time, a leakage shutdown event in operation is likely to be caused, and according to relevant regulations, when the thinning amount of the small-diameter pipe of the boiler exceeds 30%, the corresponding pipe section is replaced in time.

Because the structural feature of diaphragm type wall pipe itself, a large amount, and the specification is single relatively, relies on the experience to accomplish to diaphragm type wall pipe outer wall attenuate volume's detection among the prior art totally by the manual work, and detection efficiency is not high, and work is loaded down with trivial details, wastes time and energy, secondly, because measurement personnel's level and technical diverse cause the testing result inaccurate. Therefore, there is a need for improvements in the art to improve the efficiency and accuracy of detecting the amount of film wall tube wall thinning.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a measure device of boiler diaphragm type wall pipe outer wall volume of reducing to solve among the prior art and mainly rely on the manual work to accomplish the detection of boiler diaphragm type wall pipe outer wall volume of reducing, inefficiency wastes time and energy, and the unsafe problem of testing result.

In order to solve the above problem, the utility model discloses a technical solution is:

the utility model provides a measure device of boiler diaphragm type wall pipe outer wall volume of reducing, includes arc steel ring, the universal ball of taking the magnetic force ball, sleeve, main scale and positioning bolt, equidistant a plurality of through-holes that are equipped with on arc steel ring horizontal direction, the axis of through-hole all passes through the center of arc steel ring, and what correspond with the through-hole in arc steel ring vertical direction is equipped with a plurality of locating holes, the locating hole is the font of falling T with the through-hole that corresponds, be equipped with in the locating hole with positioning bolt complex screw thread, a plurality of sleeves pass the through-hole that corresponds respectively, the inboard and the outside of arc steel ring are all stretched out at telescopic both ends to it is fixed through positioning bolt, all install the main scale in the sleeve, the both ends of main scale all stretch out telescopic both ends and can slide in the sleeve, and the one end that the main scale stretches out the sleeve and is located arc steel ring inboard is all.

Preferably, a guide rail is installed inside the sleeve, a sliding block is installed on the guide rail, and the main scale is installed on the sliding block and can slide on the guide rail along with the sliding block.

Preferably, the device further comprises a controller and displacement sensors, wherein the displacement sensors are mounted at one ends of the sleeves extending out of the outer sides of the arc-shaped steel rings and used for measuring the displacement of the corresponding main scales, and the displacement sensors are electrically connected with the controller and transmit the measured displacement values of the main scales to the controller.

Preferably, the controller is a PLC controller, and a display screen is arranged on the PLC controller and can display the displacement value of each main scale in real time.

Preferably, the device further comprises an alarm which is electrically connected with the controller, and the alarm gives an alarm when one or more displacement values received by the controller exceed a set value.

Preferably, the main scale is provided with scale values.

Preferably, the arc-shaped steel ring is solid.

Preferably, the cross section of the arc-shaped steel ring is circular or square.

Preferably, the outer side of the arc-shaped steel ring is provided with a handle, and the handle is provided with a leather sheath.

Preferably, the radian of the arc-shaped steel ring accounts for 25% -50% of the whole circumference.

Compared with the prior art the utility model discloses the beneficial effect who has:

the utility model relates to a measure device of boiler diaphragm type wall pipe outer wall volume of reducing, mainly used detect diaphragm type wall pipe outer wall volume of reducing, rely on experience with the manual work to detect and compare, improved the efficiency that detects, shortened check-out time, avoid artifical the measuring to cause the error easily and omit, improved the accuracy that detects.

Drawings

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

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of a first usage state of the present invention.

Fig. 3 is a schematic diagram of the usage state of the present invention.

The controller and alarm are not shown in the above figures.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in 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.

As shown in fig. 1 to 3, a preferred embodiment of the present invention provides an apparatus for measuring an amount of outer wall thinning of a membrane wall tube of a boiler, the apparatus comprising: the device comprises an arc-shaped steel ring 1, a universal ball 2 with a magnetic ball 21, a sleeve 3, a main scale 4, a positioning bolt 5, a guide rail, a sliding block, a controller, a displacement sensor 6 and an alarm.

The arc-shaped steel ring 1 is made of solid metal, preferably stainless steel, the section of the arc-shaped steel ring 1 is circular or square, and the radian of the arc-shaped steel ring 1 accounts for 25% -50% of the whole circumference of a circle where the arc-shaped steel ring is located, preferably accounts for 40%.

A plurality of through holes are arranged in the horizontal direction of the arc-shaped steel ring 1 at equal intervals, for example, the number of the through holes can be four, five, six, etc., the embodiment is preferably set to four, the extension line of the axis of each through hole passes through the center of the circle of the arc-shaped steel ring 1, and the specific through holes can be obtained by a drill or a machining method.

It should be noted that the horizontal direction refers to a direction of a diameter of a circle on which the arc-shaped steel ring 1 is located, and the vertical direction refers to a direction perpendicular to the diameter.

A plurality of positioning holes are formed in the vertical direction of the arc-shaped steel ring 1 corresponding to the through holes and can be obtained in a drilling bit or machining mode, the number of the positioning holes is the same as that of the through holes, namely four positioning holes are formed, specifically, the positioning holes and the corresponding through holes are in an inverted T shape, and threads matched with the positioning bolts 5 are arranged in the positioning holes.

Wherein, the quantity of sleeve 3 is the same with the quantity of through-hole, four promptly, and the material of sleeve 3 is the metal, and the inside cavity of sleeve 3, sleeve 3 are cylindrical, and is concrete, and the external diameter of sleeve 3 slightly is less than the diameter of through-hole, and its purpose makes things convenient for sleeve 3 to pass the through-hole. Pass four corresponding through-holes respectively with four sleeves 3 to guarantee that the both ends of each sleeve 3 all stretch out the inboard and the outside of arc steel ring 1, and each sleeve 3 stretches out the inboard distance of arc steel ring 1 the same, and the distance that each sleeve 3 stretches out the arc steel ring 1 outside is also the same, and is concrete, the inboard of arc steel ring 1 indicates one side in the circle center that arc steel ring 1 belongs to, and the outside of arc steel ring 1 indicates the outside of the circle circumference that arc steel ring 1 belongs to. After four sleeves 3 passed corresponding through-hole, fixed sleeve 3 through corresponding locating hole with four positioning bolt 5 respectively, positioning bolt 5 promptly through with the locating hole in screw-thread fit, make positioning bolt 5's top in sleeve 3's outer wall, play fixed sleeve 3's effect, prevent that sleeve 3 from removing in the through-hole.

The number of the main scales 4 is the same as that of the sleeves 3, namely four, the main scales 4 are made of metal, preferably aluminum or other light-weight alloy, the main scales 4 are rectangular, and the main scales 4 are provided with scale values. The four main rulers 4 are respectively arranged inside the four sleeves 3 through guide rails and sliding blocks.

The following description will be given taking as an example one of the main scales 4 mounted inside the sleeve 3: there is the guide rail at the inside fixed mounting of sleeve 3, the length of guide rail is the same with sleeve 3's length, ordinary guide rail among the prior art is all can, do not do the restriction here, for example, guide rail on the drawer, fixed mounting has the slider on the guide rail, do not have the middle part and the slider fixed connection of scale one side with main scale 4, its purpose is to guarantee that main scale 4 has the scale one side on vertical orientation, the person of facilitating the use observes main scale 4's displacement value, main scale 4 can slide on the guide rail along with the slider, and main scale 4's length is greater than sleeve 3's length. Specifically, install the slider on the guide rail earlier, install main scale 4 on the slider, install the guide rail in sleeve 3's inside at last, because the inside space of sleeve 3 is limited, can fix the both ends of guide rail on the inner wall at sleeve 3 both ends through the welded mode.

The universal ball 2 with the magnetic ball 21 is mounted at one end of the main scale 4 extending out of the sleeve 3 and located on the inner side of the arc-shaped steel ring 1, and the specific end of the main scale 4 extending out of the sleeve 3 and located on the inner side of the arc-shaped steel ring 1 is fixedly connected with the support 22 of the universal ball 2.

All install displacement sensor 6 in the one end that each sleeve 3 is located the arc steel ring 1 outside, displacement sensor 6 can detect the displacement value of main scale 4 in this sleeve 3, each displacement sensor 6 all is connected with the controller electricity, and convey the displacement value that detects to the controller, the controller is connected with the alarm electricity, the PLC controller can be selected to the controller, also can select other controlling means among the prior art, for example the singlechip, be equipped with the display screen on the PLC controller, can realize showing the displacement value that each displacement sensor 6 detected. The PLC controller is programmed in advance, a standard displacement value is set, and when one or more displacement values received by the PLC controller exceed the standard displacement value, the alarm gives an alarm.

Further, the handle 7 is arranged on the outer side of the arc-shaped steel ring 1, and the leather sheath 8 is arranged on the handle 7, so that an operator can conveniently hold the handle 7 by hands. Wherein the controller and the alarm can be arranged on the handle 7 and also can be arranged on the arc-shaped steel ring 1.

To the utility model discloses a use explains:

will the utility model discloses accomplish the back according to above-mentioned equipment, set for a standard displacement value according to the pipe diameter of waiting to detect boiler path pipe 9, for example wait to detect the pipe diameter of boiler path pipe 9 and be A, the standard displacement value of setting for A30%. After the settlement is accomplished, the handheld handle 7 of operating personnel, with the device card on boiler path pipe 9, and apply certain power to the centre of a circle of arc steel ring 1 place circle, the ball 21 of four universal balls 2 respectively with wait to detect the pipe wall in close contact with of boiler path pipe 9 promptly, the support 22 of each universal ball 2 all with correspond the sleeve 3 and be located the inboard one end in close contact with of arc steel ring 1 this moment, main chi 4 is the maximum value that can remove to the 1 outside direction of arc steel ring in sleeve 3 promptly, show on the display screen simultaneously that the displacement value that each displacement sensor 6 detected all is zero.

Then the operator holds the handle 7 to slide up and down along the length direction of the boiler small-diameter pipe 9, if the boiler small-diameter pipe 9 is normal, the boiler small-diameter pipe is not thinned, and as shown in fig. 2, the displacement value detected by each displacement sensor 6 is still zero. If the boiler small-diameter pipe 9 is thinned, a dent exists on the pipe wall, as shown in fig. 3, when the ball 21 of one universal ball 2 rolls to the position of the thinning amount, because the ball 21 of the universal ball 2 has magnetic force, under the action of the ball 21 and the pipe wall magnetic force, the ball 21 can move to the deepest dent of the thinning amount, and simultaneously the ball 21 can drive the main scale 4 to move towards the inner side direction of the arc-shaped steel ring 1, at the moment, the corresponding displacement sensor 6 can detect the displacement value of the main scale everywhere, and transmit the detected displacement value to the controller, and display on the display screen, an operator can check the thinning amount of the boiler small-diameter pipe 9 or read the displacement value of the main scale 4 through naked eyes, namely the thinning amount, and if the detected displacement value exceeds the set standard displacement value, the alarm can give an alarm.

To sum up, the embodiment of the utility model provides a measure device of boiler diaphragm type wall pipe outer wall volume of reducing, mainly used detects diaphragm type wall pipe outer wall volume of reducing, relies on experience with the manual work to detect and compares, has improved the efficiency that detects, has shortened check-out time, avoids artifical the measuring to cause the error easily and omit, has improved the accuracy that detects.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A device for measuring the thinning amount of the outer wall of a membrane wall pipe of a boiler is characterized by comprising an arc-shaped steel ring, a universal ball with a magnetic ball, a sleeve, a main scale and a positioning bolt, a plurality of through holes are arranged at equal intervals in the horizontal direction of the arc-shaped steel ring, the axes of the through holes pass through the center of the arc-shaped steel ring, a plurality of positioning holes are arranged in the vertical direction of the arc-shaped steel ring corresponding to the through holes, the positioning holes and the corresponding through holes are in an inverted T shape, threads matched with the positioning bolts are arranged in the positioning holes, a plurality of sleeves respectively penetrate through the corresponding through holes, two ends of each sleeve respectively extend out of the inner side and the outer side of the arc-shaped steel ring, and fixed through positioning bolt, all install the main scale in the sleeve, the both ends of main scale all stretch out telescopic both ends and can slide in the sleeve, and the main scale stretches out the sleeve and is located the inboard one end of arc steel loop and all installs universal ball.

2. The apparatus of claim 1 wherein the sleeve has guide rails mounted therein, and wherein the guide rails have sliders mounted thereon, and wherein the main scale is mounted on the sliders and is slidable with the sliders on the guide rails.

3. The apparatus for measuring the amount of reduction in the outer wall of a membrane wall tube of a boiler according to claim 2, further comprising a controller and displacement sensors, wherein the displacement sensors are mounted at the ends of the sleeves extending outside the arcuate steel rings for measuring the displacements of the corresponding main scales, and the displacement sensors are electrically connected to the controller and transmit the measured main scale displacement values to the controller.

4. The apparatus of claim 3, wherein the controller is a PLC controller, and the PLC controller is provided with a display screen capable of displaying the displacement value of each main scale in real time.

5. An apparatus for measuring the amount of attenuation in the outer wall of a membrane wall tube of a boiler as claimed in claim 4 further comprising an alarm electrically connected to the controller, the alarm providing an alarm when one or more of the displacement values received by the controller exceed a set value.

6. An apparatus for measuring the amount of attenuation in the outer wall of a membrane wall tube of a boiler as set forth in claim 5 wherein said main scale is provided with scale values.

7. An apparatus for measuring the amount of attenuation in the outer wall of a membrane wall tube of a boiler as set forth in claim 5 wherein said arcuate steel ring is solid.

8. An apparatus for measuring the amount of attenuation in the outer wall of a membrane wall tube of a boiler as claimed in claim 5 wherein said arcuate steel ring has a circular or square cross-section.

9. The apparatus for measuring the amount of reduction in the outer wall of a membrane wall tube of a boiler as claimed in claim 5, wherein the arcuate steel ring has a handle on the outside thereof, the handle having a leather sheath.

10. The apparatus of claim 5, wherein the arcuate steel ring has an arc of 25% to 50% of the entire circumference.