Continuous detection device for flatness of flange end face of tubular heat exchanger

Abstract

The utility model discloses a tubular heat exchanger flange end face flatness continuous detection device which comprises a fixing assembly connected with a supporting bearing, the supporting bearing is installed on a rotating shaft, and a sliding guide rail is vertically installed on the rotating shaft. A ball screw is installed on the sliding guide rail, a movable sliding block is installed on the ball screw, and the bottom of the movable sliding block is connected with a connecting rod used for clamping an external measurer. And rotating power pieces are respectively arranged at one end of the ball screw and the top end of the rotating shaft. Therefore, the device can be applied to flatness detection of a heat exchanger end face flange which is internally provided with a heat exchange pipe and cannot be fixed and positioned by installing an inner supporting mechanism at the pipe diameter of the flange, and continuous measurement of the radial flatness of the flange is realized.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to a continuous detection device for the flatness of flange end faces of a shell-and-tube heat exchanger. Background Art

[0002] In the process of realizing the utility model, it is found that the existing detection device can only detect the flatness of the flange end face of the conventional flange, but cannot measure the end face flange of the heat exchanger with heat exchange tubes inside, which cannot be fixed and positioned by installing an internal support mechanism in the flange diameter, and it is difficult to achieve continuous measurement of the radial flatness of the flange; and the existing detection device is large in size and heavy in weight, while in engineering practice, most flanges are located at high places that are not conducive to operation, and each use is time-consuming and difficult to operate, which is not conducive to the application of engineering and technical personnel in engineering practice; in addition, the requirements for stability and the spatial position of the outer side of the flange are high, and the detection accuracy is greatly affected by the spatial position and the external environment. Utility Model Content

[0003] In view of this, an embodiment of the utility model provides a continuous detection device for the flatness of the flange end face of a shell-and-tube heat exchanger, which can be used for the flatness detection of the end face flange of a heat exchanger where there are heat exchange tubes inside and an internal support mechanism cannot be installed in the flange diameter for fixation and positioning, and realizes continuous measurement of the radial flatness of the flange.

[0004] To achieve the above-mentioned purpose, according to an embodiment of the utility model, a continuous detection device for the flatness of the flange end face of a shell-and-tube heat exchanger is provided, comprising: a fixed component, a rotating shaft, a support bearing, a sliding guide rail, a ball screw, a movable slider, a connecting rod and a rotating power part; wherein, the fixed component is connected to the support bearing, the support bearing is mounted on the rotating shaft, and the sliding guide rail is vertically mounted on the rotating shaft; a ball screw is mounted on the sliding guide rail, and a movable slider is mounted on the ball screw, and a connecting rod for clamping an external measuring device is connected to the bottom of the movable slider; and a rotating power part is respectively mounted at one end of the ball screw and the top end of the rotating shaft.

[0005] Optionally, the fixing assembly includes at least three supporting main frames, at least three supporting connecting rods, at least three replaceable insert support rods, a rotating support base and at least three fastening screws; wherein each supporting connecting rod connects a supporting main frame and a replaceable insert support rod, and the connection between each supporting connecting rod and the supporting main frame is fixed by a fastening screw; at least three supporting main frames are respectively connected to the rotating support base, and the rotating support base is connected to the support bearing.

[0006] Optionally, it includes: a replaceable insert support rod connected to the support connecting rod through a threaded joint.

[0007] Optionally, it includes an adjustable nut and a triangular rod; wherein one end of the triangular rod is fixed to the connecting rod through the adjustable nut, and the other end of the triangular rod is fixed to the ball screw.

[0008] Optionally, it comprises: a fixing rod; wherein one end of the fixing rod is connected to the sliding guide rail, and the other end of the fixing rod is connected to the rotating shaft.

[0009] Optionally, it includes: upper and lower limit blocks are respectively provided at the upper and lower connection points between the sliding guide rail and the rotating shaft.

[0010] Optionally, an inclined rod is included; wherein one end of the inclined rod is fixed to the side wall of the rotating shaft, and the other end of the inclined rod is fixed to the sliding guide rail.

[0011] Optionally, it includes: the oblique rod is configured as an elastic rod.

[0012] Optionally, it includes: a shaft sleeve is provided on the rotating shaft, and the sliding guide rail is fixed to the rotating shaft through the shaft sleeve.

[0013] An embodiment of the above utility model has the following advantages or beneficial effects: the utility model provides a method for detecting the end face flanges of heat exchange tube bundles of different specifications and meeting a certain adjustable range, thereby ensuring the sealing of the flange surface and ensuring safe production operation; and, the end face flatness of the flange can be stably detected, while ensuring the adjustability and simplicity of the flange size detection and the stability of the structure after bearing load; and, the utility model is easy to carry and can be used in a variety of environments, meeting the flange measurement within a certain range, with accurate results, improved detection efficiency, and reduced maintenance costs.

[0014] The further effects of the above-mentioned non-conventional optional manner will be described below in conjunction with the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to better understand the present invention and do not constitute an improper limitation on the present invention.

[0016] Figure 1 It is a structural schematic diagram of a continuous detection device for the flatness of flange end faces of a shell-and-tube heat exchanger according to an embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the fixing components of the device for continuously detecting the flatness of the flange end faces of a shell-and-tube heat exchanger according to an embodiment of the utility model. DETAILED DESCRIPTION

[0018] The following is a description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, including various details of the embodiments of the present invention to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for the sake of clarity and conciseness, the description of well-known functions and structures is omitted in the following description.

[0019] At least one embodiment of the utility model provides a device for continuously detecting the flatness of the flange end surface of a shell-and-tube heat exchanger, such as Figure 2 As shown, the continuous detection device for the flatness of the flange end face of the shell-and-tube heat exchanger may include a fixed component, a rotating shaft 16, a support bearing 15, a sliding guide rail 6, a ball screw 7, a movable slider 8, a connecting rod 9 and a rotating power part. In the embodiment, the fixed component is connected to the support bearing 15, the support bearing 15 is installed on the rotating shaft 16, and the sliding guide rail 6 is vertically installed on the rotating shaft 16. The ball screw 7 is installed on the sliding guide rail 6, and the ball screw 7 is installed with a movable slider 6. The bottom of the movable slider 6 is connected to a connecting rod 9 for clamping an external measuring device. The sliding guide rail 6 can make the movable slider 8 move radially on it through the rotation of the ball screw 7, thereby meeting the detection needs and having adjustable performance on the plane. In addition, a rotating power part is installed at one end of the ball screw 7 and the top of the rotating shaft 16.

[0020] In a preferred embodiment, the rotating power part includes a moving handwheel 13 and a rotating handwheel 14. The moving handwheel 13 is installed at one end of the ball screw 7 to provide power for the rotation of the ball screw 7 and realize the operation of the moving slider 8; the rotating handwheel 14 is installed at the top of the rotating shaft 5 to provide power for the rotating shaft 5 to meet the measurement of the entire end face.

[0021] In addition, the movable slider 8 and the ball screw 7 are rigidly connected.

[0022] It can be seen that the utility model can realize the flatness measurement of the end face flange of the heat exchanger with heat exchange tubes inside that cannot be fixed and positioned by installing the internal support mechanism in the flange diameter through the adjustable support insert device. The continuous detection of the flange surface flatness is realized through the ball screw structure; the flatness measurement of flanges of multiple sizes is realized through the sliding guide design.

[0023] It is worth noting that a shaft sleeve may be provided on the rotating shaft 16 , and the sliding guide rail 6 is fixed to the rotating shaft 16 via the shaft sleeve.

[0024] As other embodiments of the present invention, Figure 2As shown, the continuous detection device for the flatness of the flange end face of the shell-and-tube heat exchanger may include an adjustable nut 11 and a triangular rod 10. In the embodiment, one end of the triangular rod 10 is fixed to the connecting rod 9 through the adjustable nut 11, and the other end of the triangular rod 10 is fixed to the ball screw 7. Preferably, the triangular rod 10 and the ball screw 7 are rigidly connected.

[0025] It can be seen that the moving slider 8 can drive the connecting rod 9 and the triangular rod 10 to move linearly. In order to meet certain measurement angle requirements, the connecting rod 9 and the triangular rod 10 are adjusted by the adjustable nut 11. The triangular rod 10 and the connecting rod 9 form a triangular structure to increase the stability of the measurement structure.

[0026] As some further embodiments of the present utility model, Figure 2 As shown, a fixing rod 12 is provided at the connection between the sliding guide rail 6 and the rotating shaft 16, one end of the fixing rod 12 is connected to the sliding guide rail 6, and the other end of the fixing rod is connected to the rotating shaft 16. Thus, the fixing rod 12 can improve the rigidity of the sliding guide rail 6 and improve the stability of the transmission.

[0027] In addition, it should be noted that the shell-and-tube heat exchanger flange end face flatness continuous detection device can also include a limit block 17. In the embodiment, the limit block 17 includes an upper limit block and a lower limit block, and the upper and lower connection points between the sliding guide rail 6 and the rotating shaft 16 are respectively provided with an upper limit block and a lower limit block.

[0028] As a further embodiment of the present invention, the shell-and-tube heat exchanger flange end surface flatness continuous detection device may further include an inclined rod 18, one end of the inclined rod 18 is fixed to the side wall of the rotating shaft 16, and the other end of the inclined rod 18 is fixed to the sliding guide rail 6. Preferably, the inclined rod 18 is set as an elastic rod.

[0029] It can be seen that the utility model adopts triangular support and lightweight design in many places, so as to achieve stable measurement of the dial indicator while reducing the weight.

[0030] Some embodiments worth explaining include a continuous detection device for the flatness of the flange end face of a shell-and-tube heat exchanger, such as Figure 1 As shown, the fixing assembly may include at least three supporting main frames 1, at least three supporting connecting rods 2, at least three replaceable inserting struts 4, a rotating supporting base 34 and at least three fastening screws 5. In the embodiment, each supporting connecting rod 2 connects a supporting main frame 1 and a replaceable inserting strut 4, and the connection between each supporting connecting rod and the supporting main frame is fixed by a fastening screw 5. At least three supporting main frames 1 are respectively connected to the rotating supporting base 3, and the rotating supporting base 3 is connected to the supporting bearing 15. And, the replaceable inserting strut 4 is inserted into the external heat exchanger tube bundle, and the supporting main frame 1 and the rotating supporting base 3 are fixed to the external heat exchanger end face flange.

[0031] Preferably, the replaceable insert support rod 4 is connected to the support connecting rod 2 through a threaded joint. In addition, as a preferred embodiment, four support main frames 1, four support connecting rods 2, four replaceable insert support rods 4 and four fastening screws 5 are respectively included.

[0032] It can be seen that the support main frame 1 is fixed to the end face of the external heat exchanger, and the support connecting rod 2 is used to connect the support main frame 1 and the replaceable insert support rod 4. Its position relative to the rotating support base 3 is adjustable and fixed by the fastening screw 5. Therefore, it can be applied to the flange end face measurement of heat exchangers with heat exchange tube bundles of various specifications. The size of the replaceable insert support rod 4 is not limited, such as conventional sizes such as φ15, φ20, φ25, etc. The replaceable insert support rod 4 is connected to the support connecting rod 2 through a threaded joint. The replaceable insert support rod 4 can be inserted into the heat exchanger tube bundle to fix the support main frame 1 and the rotating support base 34 to the flange of the heat exchanger end face. The rotating support base 3 is connected to the support bearing 15 to achieve installation and 360° rotation measurement.

[0033] It should be noted that, without affecting the measured flatness, the mechanical structure of the continuous detection device for the flatness of the flange end face of a shell-and-tube heat exchanger described in the utility model can be further optimized and adjusted, and of course the weight can be reduced by changing the material to make it more convenient to carry.

[0034] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" and the like may refer to fixed connection, detachable connection, or integral connection. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] The above specific implementations do not constitute a limitation on the protection scope of the present utility model. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A continuous detection device for the flatness of flange end faces of a shell-and-tube heat exchanger, characterized in that: include: Fixed components, rotating shafts, supporting bearings, sliding guides, ball screws, moving slides, connecting rods and rotating power parts; Among them, the fixed component is connected to the support bearing, the support bearing is installed on the rotating shaft, and the sliding guide rail is installed vertically on the rotating shaft; a ball screw is installed on the sliding guide rail, and a moving slider is installed on the ball screw, and a connecting rod for clamping an external measuring device is connected to the bottom of the moving slider; and a rotating power part is installed at one end of the ball screw and the top of the rotating shaft respectively.

2. The device for continuous detection of flange end surface flatness of a shell-and-tube heat exchanger according to claim 1, characterized in that: The fixing assembly includes at least three supporting main frames, at least three supporting connecting rods, at least three replaceable inserting support rods, a rotating supporting base and at least three fastening screws; Among them, each support connecting rod connects a support main frame and a replaceable insert support rod, and the connection between each support connecting rod and the support main frame is fixed by a fastening screw; at least three support main frames are respectively connected to the rotating support base, and the rotating support base is connected to the support bearing.

3. The device for continuous detection of flange end surface flatness of a shell-and-tube heat exchanger according to claim 2, characterized in that: include: The replaceable insert support rod is connected to the support connecting rod through a threaded joint.

4. The device for continuously detecting the flatness of flange end faces of a shell-and-tube heat exchanger according to claim 1, characterized in that: Includes adjustable nut and triangular rod; Among them, one end of the triangular rod is fixed to the connecting rod through an adjustable nut, and the other end of the triangular rod is fixed to the ball screw.

5. The device for continuous detection of flange end surface flatness of a shell-and-tube heat exchanger according to claim 1, characterized in that: It comprises a fixing rod, wherein one end of the fixing rod is connected to the sliding guide rail, and the other end of the fixing rod is connected to the rotating shaft.

6. The device for continuous detection of flange end surface flatness of a shell-and-tube heat exchanger according to claim 1, characterized in that: include: An upper limit block and a lower limit block are respectively arranged at the upper and lower connection points between the sliding guide rail and the rotating shaft.

7. The device for continuous detection of flange end surface flatness of a shell-and-tube heat exchanger according to claim 1, characterized in that: Includes diagonal rod; One end of the inclined rod is fixed on the side wall of the rotating shaft, and the other end of the inclined rod is fixed on the sliding guide rail.

8. The device for continuous detection of flange end surface flatness of a shell-and-tube heat exchanger according to claim 7, characterized in that: include: The oblique rod is configured as an elastic rod.

9. The device for continuous detection of flange end surface flatness of a shell-and-tube heat exchanger according to any one of claims 1 to 8, characterized in that: include: A shaft sleeve is arranged on the rotating shaft, and the sliding guide rail is fixed to the rotating shaft through the shaft sleeve.

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