CN210428453U - Pipeline stress coupling analysis system of thermal power factory - Google Patents
Pipeline stress coupling analysis system of thermal power factory Download PDFInfo
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- CN210428453U CN210428453U CN201921057044.2U CN201921057044U CN210428453U CN 210428453 U CN210428453 U CN 210428453U CN 201921057044 U CN201921057044 U CN 201921057044U CN 210428453 U CN210428453 U CN 210428453U
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Abstract
The utility model relates to a pipeline stress coupling analytic system of thermal power factory. The utility model provides a front end jib force sensor installs on the fixed gallows of front end, rear end jib force sensor installs on the fixed gallows of rear end, spring gallows left side force sensor and spring gallows right side force sensor install the both sides at the spring gallows respectively, front end pipeline wall temperature sensor, front end pipeline pressure sensor, flow sensor, rear end pipeline wall temperature sensor and rear end pipeline pressure sensor all install on the pipeline, front end pipeline wall temperature sensor, front end jib force sensor, front end pipeline pressure sensor, flow sensor, rear end pipeline wall temperature sensor, rear end pipeline pressure sensor, rear end jib force sensor and spring gallows right side force sensor all are connected with the computer. The pipeline stress coupling analysis system for the thermal power plant has the advantages of high technical content, strong innovation, high safety value, accordance with the reality and good operability.
Description
Technical Field
The utility model relates to a pipeline stress coupling analytic system of thermal power factory.
Background
At present, more software is used for calculating the stress of the pipeline in the market, and the technology is mature. The stress analysis software builds a model in advance, and then performs stress calculation under various loads to obtain the stress under various working conditions. The ANSYS software is large-scale general Finite Element Analysis (FEA) software developed by ANSYS corporation of America, and can be used for structural static force analysis, structural dynamics analysis, structural nonlinear analysis, dynamics analysis and thermal analysis. The CAESARII pipeline stress analysis software is pressure pipeline stress analysis professional software developed by COADE company in the United states, and can be used for analyzing, calculating and carrying out static analysis and dynamic analysis. Bentley AutoPIPE is a set of pipeline analysis software with a full Windows interface, and is mainly used for calculating the regulatory stress (codes), loading force and deformation (Deflections) borne by a pipeline system when the pipeline system is subjected to Static (Static) and Dynamic (Dynamic) loads. The stress calculation software for the high-quality pipeline is excellent domestic pipeline stress calculation software, is called 'AutoPSA' for short in English, and analyzes the stress of a pipeline system by adopting finite element dispersion. The software is used for performing offline simulation analysis, the change condition of the piping system stress cannot be analyzed in real time, and the software can only be used as a design guide and cannot be used as an operation guide, so that most users of the software are design houses or scientific research institutions at present and are not applied to pipeline operation units. In such a background, it is meaningful to develop a novel online pipeline stress coupling analysis system.
With the continuous departure of various policies of safety production and rapid development of intelligent technologies, the security of pipeline systems in the chemical industry, the electric power industry and other industries is more and more emphasized, the operation digitization and the intelligent requirements of the pipeline systems are more and more urgent, a coupling analysis system for stress of each component of the pipeline system is established, and the realization of online stress analysis has social value.
The existing industrial pipeline system has the following problems:
(1) deviation of stress state. Due to the deviation of the design and the conditions such as materials, construction, operating environment and the like, the difference between the actual stress condition of the piping system and the design is larger, and the design condition is used for judging whether the state of the piping system is normal or not, so that a larger risk exists. At present, the problems of main steam pipeline welding line cracking, pipeline sinking, pipe clamp deformation, support hanger overload or disengaging and the like of a plurality of power plants are all related to the serious deviation of the stress condition of a pipe system from the design working condition.
(2) The stress state is unknown. At present, no on-line monitoring equipment is available for the stress state of an operating pipe system, and problems can be found only through regular maintenance, and then simulation calculation is carried out to adjust or replace failed parts in time. Or, some mechanical detection equipment is utilized during the maintenance period to randomly detect the stress condition of a part of the piping system or key parts. The method is a short-term measure, namely a static measure, and the change of the stress is not tracked in the long-term operation of the system, and the problem cannot be found.
(3) No coupling relationship between the parameters is established. According to the mechanics principle, the load and displacement of each supporting and hanging point are calculated according to the actual load, and theoretically, the calculation is carried out according to a formula. The formula has both theoretical formula and empirical formula, and utilizes finite element analysis method, so that the calculation amount is increased, and a large amount of boundary conditions need to be artificially input, thereby realizing the calculation. All input parameters have a certain corresponding relation, and once the coupling formula is found, the stress calculation can be carried out on line. However, at present, no one has established the coupling relationship for online stress analysis, and even the stress relationship between nodes cannot be analyzed at any time.
Therefore, the research on the pipeline stress coupling analysis system of the thermal power plant is significant and necessary.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design reasonable, can solve the problem that how swift calculation of piping stress, can carry out the thermal power factory pipeline stress coupling analytic system that stress analysis carries out the risk early warning on line again according to piping operational parameter's change.
The utility model provides a technical scheme that above-mentioned problem adopted is: this pipeline stress coupling analytic system of thermal power factory, its structural feature lies in: the system comprises a pipeline, a front-end pipeline wall temperature sensor, a front-end fixed hanger, a front-end suspender force sensor, a front-end pipeline pressure sensor, a spring hanger, a flow sensor, a rear-end fixed hanger, a rear-end pipeline wall temperature sensor, a rear-end pipeline pressure sensor, a rear-end suspender force sensor, a spring hanger left-side force sensor, a computer and a spring hanger right-side force sensor; the front end suspender force sensor is installed on the front end fixed hanger, the rear end suspender force sensor is installed on the rear end fixed hanger, the spring hanger left side force sensor and the spring hanger right side force sensor are respectively installed on two sides of the spring hanger, the front end pipeline wall temperature sensor, the front end pipeline pressure sensor, the flow sensor, the rear end pipeline wall temperature sensor and the rear end pipeline pressure sensor are all installed on a pipeline, and the front end pipeline wall temperature sensor, the front end suspender force sensor, the front end pipeline pressure sensor, the flow sensor, the rear end pipeline wall temperature sensor, the rear end pipeline pressure sensor, the rear end suspender force sensor and the spring hanger right side force sensor are all connected with a computer.
Furthermore, the front end fixed hanging bracket, the rear end fixed hanging bracket and the spring hanging bracket are all connected with the pipeline.
Furthermore, the front-end pipeline wall temperature sensor and the rear-end pipeline wall temperature sensor are both arranged on the outer metal wall of the pipeline.
Further, the device also comprises a fixed hanger upper suspender and a fixed hanger lower suspender; one end of the fixed hanger lower suspension rod is connected with a pipeline, the other end of the fixed hanger lower suspension rod is connected with a front end suspension rod force sensor, the front end suspension rod force sensor is connected with one end of the fixed hanger upper suspension rod, and the other end of the fixed hanger upper suspension rod is connected with a structure fixed steel frame.
Further, the device also comprises a fixed hanger upper suspender and a fixed hanger lower suspender; one end of the fixed hanger lower suspension rod is connected with a pipeline, the other end of the fixed hanger lower suspension rod is connected with a rear-end suspension rod force sensor, the rear-end suspension rod force sensor is connected with one end of the fixed hanger upper suspension rod, and the other end of the fixed hanger upper suspension rod is connected with a structure fixed steel frame.
The spring hanger comprises a spring hanger left pull rod, a spring hanger right pull rod, a left pressing plate, a right pressing plate, a left locking nut and a right locking nut; the one end of spring hanger left side pull rod and spring hanger right side pull rod all with the pipe connection, the other end of spring hanger left side pull rod and spring hanger right side pull rod all runs through with the fixed steelframe of structure, spring hanger left side force sensor passes through left clamp plate and left side lock nut and installs on spring hanger left pull rod, and left clamp plate and left side lock nut all are located the top of the fixed steelframe of structure, spring hanger right side force sensor passes through right clamp plate and right side lock nut and installs on spring hanger right side pull rod, and right clamp plate and right side lock nut all are located the top of the fixed steelframe of structure.
Further, another technical object of the present invention is to provide an analysis method for a thermal power plant pipeline stress coupling analysis system.
The above technical object of the present invention can be achieved by the following technical solutions.
An analysis method of a pipeline stress coupling analysis system of a thermal power plant is characterized in that: the analysis method is as follows:
carrying out on-site investigation, collecting relevant data of a pipeline, a support hanger, a heat insulation layer and the like, and calculating working condition loads of a front end fixed hanger, a spring hanger and a rear end fixed hanger off line by using the existing material mechanics formula according to the weight of the pipeline, the temperature, the pressure and the flow of a working medium;
secondly, analyzing and sorting load data of the front end fixed hanging frame, the spring hanging frame and the rear end fixed hanging frame under different working conditions, and analyzing;
firstly, the calculation results of the front end fixed hanging bracket are arranged as follows:
when other parameters are unchanged and the medium flow is changed, the stress condition of the fixed lifting frame at the front end is as shown in table 1:
TABLE 1 stress parameter table for flow variation
When other parameters are unchanged and the medium temperature changes, the stress condition of the fixed hanging bracket at the front end is as shown in table 2:
TABLE 2 stress parameter table during temperature variation
When other parameters are unchanged and the medium pressure changes, the stress condition of the fixed hanging bracket at the front end is as shown in table 3:
TABLE 3 stress parameter table during pressure change
And (IV) analyzing the relation between each parameter and the load of the front end fixed lifting frame according to the data of the calculation result:
according to table 1, a relation curve of the fitting flow rate and the load of the front end fixed hanger 3 is shown in fig. 5, and a fitting stress calculation formula (a) is as follows:
F＝f1(q)＝5E-05x2-0.0395x+69.324 (A)
according to table 2, a relation curve of the fitting flow rate and the load of the front end fixed hanger 3 is shown in fig. 6, and a fitting stress calculation formula (B) is as follows:
F＝f2(t)＝0.0026x2-2.3025x+545.87 (B)
according to table 3, a relation curve of the fitting flow rate and the load of the front end fixed hanger 3 is shown in fig. 7, and a fitting stress calculation formula (C) is as follows:
F＝f3(p)＝-0.0191x2+0.9368x+66.741 (C)
step four, analyzing the relation between flow, temperature, pressure and load according to a single parameter corresponding relation, and obtaining a calculation formula of the load through mathematical iterative coupling calculation:
coupled calculation according to pressure, resulting in formula (D)
F(Q,T,P)＝f1'(0)(Q-900)+f2'(0)(T-550)+f3(P) (D) coupling calculation according to temperature to obtain formula (E)
F(Q,T,P)＝f1'(0)(Q-900)+f3'(0)(P-21)+f2(T) and (E) performing coupled calculation according to the flow to obtain a formula (F)
F(Q,T,P)＝f2'(0)(T-550)+f3'(0)(P-21)+f1(Q) (F)
Sixthly, performing coupling analysis on the simulation calculation results of the formula (D), the formula (E) and the formula (F) in the fifth step and data actually detected by the front-end suspender force sensor, the rear-end suspender force sensor and the spring hanger left-side force sensor, and finally obtaining a front-end fixed hanger load coupling calculation formula;
and (seventhly) repeating the third step and the sixth step to obtain the load coupling function relation between the spring hanger and the rear fixed hanger.
Further, a front-end pipeline wall temperature sensor, a front-end suspender force sensor, a front-end pipeline pressure sensor, a flow sensor, a rear-end pipeline wall temperature sensor, a rear-end pipeline pressure sensor, a rear-end suspender force sensor, a spring hanger left-side force sensor and a spring hanger right-side force sensor send signals to a computer; simulating and calculating stress change according to the boundary conditions, fitting a single relation curve of parameters and load, and performing coupling calculation according to a multi-parameter relation and a real-time stress detection signal to obtain a final calculation formula; and finally, the system completes the pipeline stress coupling analysis.
Further, a coupling function is obtained after the coupling analysis is finished, and all other support hangers without stress measuring points can be dynamically analyzed by using the function to obtain the stress at the position; when the parameter change is detected, the analysis system automatically completes the stress calculation of each supporting point, displays the stress calculation in real time, and compares the stress calculation with a design value and a simulation calculation value to realize the overrun alarm.
Further, a fitting curve relation is analyzed by utilizing a large amount of data of the temperature, the pressure and the flow of the pipeline medium, and then each single curve is subjected to correlation coupling; and correcting each coupling function by using the actual stress measurement result of each support and hanger, and finally dynamically analyzing the stress of other support and hangers without the measuring points by using the coupling function to realize risk early warning.
Compared with the prior art, the utility model has the advantages of it is following:
the pipeline stress coupling analysis system of the thermal power plant can take a pile of complex data which seems to have no relation and a series of parameters as a whole which is related, and the large data is utilized to analyze the functional relation therein and is coupled into a formula which can be calculated; meanwhile, the parameters are not separately viewed, so that the problems can be viewed in a linked manner, and the problems can be found and solved more conveniently; meanwhile, the automatic analysis and on-line monitoring of the piping system stress are realized, and the state monitoring of the metal pipeline is realized; whether the real-time calculated data are normal or not can be analyzed through the design parameters and the offline analysis data, and therefore the risk assessment of the pipeline state is achieved.
Therefore, the stress state of the pipeline is conveniently monitored, and the pipeline maintenance work is more targeted and scientifically and reasonably guided to be maintained; meanwhile, a basis is provided for the effect evaluation of the maintenance work, a pair of eyes is provided for operators, the state of the pipeline can be observed in real time, and the running risk is avoided; therefore, the pipeline stress coupling analysis system of the thermal power plant has the advantages of high technical content, strong innovativeness, high safety value, accordance with the reality and good operability.
Drawings
Fig. 1 is a schematic connection relationship diagram of a thermal power plant pipeline stress coupling analysis system according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a front end fixing hanger according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a rear end fixed hanger according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a spring hanger according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a relation curve between a flow and a front end fixed hanger load according to table 1 in the embodiment of the present invention.
Fig. 6 is a schematic diagram of a relation curve between a fittable flow and a front end fixed hanger load according to table 2.
Fig. 7 is a schematic diagram of a relation curve between a fittable flow and a front end fixed hanger load according to table 3.
In the figure: the system comprises a pipeline 1, a front-end pipeline wall temperature sensor 2, a front-end fixed hanger 3, a front-end hanger force sensor 4, a front-end pipeline pressure sensor 5, a spring hanger 6, a flow sensor 7, a rear-end fixed hanger 8, a rear-end pipeline wall temperature sensor 9, a rear-end pipeline pressure sensor 10, a rear-end hanger force sensor 11, a spring hanger left-side force sensor 12, a computer 13, a spring hanger right-side force sensor 14, a structure fixed steel frame 15, a fixed hanger upper hanger 16, a fixed hanger lower hanger 17, a spring hanger left pull rod 18, a spring hanger right pull rod 19, a left pressing plate 20, a right pressing plate 21, a left locking nut 22 and a right locking nut 23.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Examples are given.
Referring to fig. 1 to 7, it should be understood that the structures, ratios, sizes, etc. shown in the drawings attached to the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essence, and any modification of the structures, changes of the ratio relationship, or adjustment of the sizes should still fall within the scope that the technical contents disclosed in the present invention can cover without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, in the present specification, if there are terms such as "upper", "lower", "left", "right", "middle" and "one", they are used for clarity of description only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are considered as the scope of the present invention without substantial changes in the technical content.
Pipeline stress coupling analytic system of thermal power factory in this embodiment, including pipeline 1, front end pipeline wall temperature sensor 2, the fixed gallows 3 of front end, front end jib force sensor 4, front end pipeline pressure sensor 5, spring hanger 6, flow sensor 7, the fixed gallows 8 of rear end, rear end pipeline wall temperature sensor 9, rear end pipeline pressure sensor 10, rear end jib force sensor 11, spring hanger left side force sensor 12, computer 13, spring hanger right side force sensor 14, fixed gallows upper boom 16, fixed gallows lower boom 17, spring hanger left pull rod 18, spring hanger right pull rod 19, left clamp plate 20, right clamp plate 21, left side lock nut 22 and right side lock nut 23.
Front end jib force sensor 4 in this embodiment is installed on fixed gallows 3 of front end, and rear end jib force sensor 11 is installed on the fixed gallows 8 of rear end, and spring gallows left side force sensor 12 and spring gallows right side force sensor 14 are installed respectively in the both sides of spring gallows 6, and front end pipeline wall temperature sensor 2, front end pipeline pressure sensor 5, flow sensor 7, rear end pipeline wall temperature sensor 9 and rear end pipeline pressure sensor 10 all install on pipeline 1.
In this embodiment, the front-end pipeline wall temperature sensor 2 and the rear-end pipeline wall temperature sensor 9 are both installed on the outer metal wall of the pipeline 1 in a normal condition, the front-end fixing hanger 3, the rear-end fixing hanger 8 and the spring hanger 6 are all connected with the pipeline 1, and the front-end pipeline wall temperature sensor 2, the front-end boom force sensor 4, the front-end pipeline pressure sensor 5, the flow sensor 7, the rear-end pipeline wall temperature sensor 9, the rear-end pipeline pressure sensor 10, the rear-end boom force sensor 11 and the spring hanger right-side force sensor 14 are all connected with the computer 13.
In the front end fixing hanger 3 in this embodiment, one end of a fixing hanger lower boom 17 is connected to the pipeline 1, the other end of the fixing hanger lower boom 17 is connected to the front end boom force sensor 4, the front end boom force sensor 4 is connected to one end of a fixing hanger upper boom 16, and the other end of the fixing hanger upper boom 16 is connected to the structure fixing steel frame 15.
In the rear end fixing hanger 8 in this embodiment, one end of a fixing hanger lower boom 17 is connected to the pipeline 1, the other end of the fixing hanger lower boom 17 is connected to a rear end boom force sensor 11, the rear end boom force sensor 11 is connected to one end of a fixing hanger upper boom 16, and the other end of the fixing hanger upper boom 16 is connected to a structure fixing steel frame 15.
In the embodiment, one ends of a left spring hanger pull rod 18 and a right spring hanger pull rod 19 in the spring hanger 6 are connected with the pipeline 1, the other ends of the left spring hanger pull rod 18 and the right spring hanger pull rod 19 are all penetrated through a structure fixing steel frame 15, the spring hanger left force sensor 12 is installed on the left spring hanger pull rod 18 through a left pressing plate 20 and a left locking nut 22, the left pressing plate 20 and the left locking nut 22 are both located above the structure fixing steel frame 15, the spring hanger right force sensor 14 is installed on the spring hanger right pull rod 19 through a right pressing plate 21 and a right locking nut 23, and the right pressing plate 21 and the right locking nut 23 are both located above the structure fixing steel frame 15.
The analysis method of the pipeline stress coupling analysis system of the thermal power plant in the embodiment includes the following steps:
carrying out on-site investigation, collecting relevant data of a pipeline, a supporting and hanging bracket, a heat insulation layer and the like, and calculating working condition loads of the front end fixed hanging bracket 3, the spring hanging bracket 6 and the rear end fixed hanging bracket 8 off line by using the existing material mechanics formula according to the weight of the pipeline, the temperature, the pressure and the flow of a working medium;
secondly, analyzing and sorting load data of the front end fixed hanger 3, the spring hanger 6 and the rear end fixed hanger 8 under different working conditions, and analyzing;
firstly, the calculation results of the front end fixed hanger 3 are arranged as follows:
when other parameters are unchanged and the medium flow is changed, the stress condition of the front end fixed hanger 3 is as shown in table 1:
TABLE 1 stress parameter table for flow variation
When other parameters are unchanged and the temperature of the medium is changed, the stress condition of the front end fixed hanger 3 is as shown in table 2:
TABLE 2 stress parameter table during temperature variation
When other parameters are unchanged and the medium pressure changes, the stress condition of the front end fixed hanger 3 is as shown in table 3:
TABLE 3 stress parameter table during pressure change
And (IV) analyzing the relation between each parameter and the load of the front end fixed lifting frame 3 according to the data of the calculation result:
according to table 1, a relation curve of the fitting flow rate and the load of the front end fixed hanger 3 is shown in fig. 5, and a fitting stress calculation formula (a) is as follows:
F＝f1(q)＝5E-05x2-0.0395x+69.324 (A)
according to table 2, a relation curve of the fitting flow rate and the load of the front end fixed hanger 3 is shown in fig. 6, and a fitting stress calculation formula (B) is as follows:
F＝f2(t)＝0.0026x2-2.3025x+545.87 (B)
according to table 3, a relation curve of the fitting flow rate and the load of the front end fixed hanger 3 is shown in fig. 7, and a fitting stress calculation formula (C) is as follows:
F＝f3(p)＝-0.0191x2+0.9368x+66.741 (C)
step four, analyzing the relation between flow, temperature, pressure and load according to a single parameter corresponding relation, and obtaining a calculation formula of the load through mathematical iterative coupling calculation:
coupled calculation according to pressure, resulting in formula (D)
F(Q,T,P)＝f1'(0)(Q-900)+f2'(0)(T-550)+f3(P) (D) coupling calculations based on temperature,get the formula (E)
F(Q,T,P)＝f1'(0)(Q-900)+f3'(0)(P-21)+f2(T) and (E) performing coupled calculation according to the flow to obtain a formula (F)
F(Q,T,P)＝f2'(0)(T-550)+f3'(0)(P-21)+f1(Q) (F)
Sixthly, performing coupling analysis on the simulation calculation results of the formula (D), the formula (E) and the formula (F) in the fifth step and data actually detected by the front end suspender force sensor 4, the rear end suspender force sensor 11 and the spring hanger left side force sensor 12, and finally obtaining a front end fixed hanger 3 load coupling calculation formula;
and (seventhly) repeating the third step and the sixth step to obtain the load coupling function relation between the spring hanger 6 and the rear end fixed hanger 8.
In this embodiment, signals are sent to the computer 13 by the front-end pipeline wall temperature sensor 2, the front-end boom force sensor 4, the front-end pipeline pressure sensor 5, the flow sensor 7, the rear-end pipeline wall temperature sensor 9, the rear-end pipeline pressure sensor 10, the rear-end boom force sensor 11, the spring hanger left-side force sensor 12 and the spring hanger right-side force sensor 14; simulating and calculating stress change according to the boundary conditions, fitting a single relation curve of parameters and load, and performing coupling calculation according to a multi-parameter relation and a real-time stress detection signal to obtain a final calculation formula; and finally, the system completes the pipeline stress coupling analysis.
In the embodiment, after the coupling analysis is finished, a coupling function is obtained, and all other support hangers without stress measuring points can be dynamically analyzed by using the function to obtain the stress at the position; when the parameter change is detected, the analysis system automatically completes the stress calculation of each supporting point, displays the stress calculation in real time, and compares the stress calculation with a design value and a simulation calculation value to realize the overrun alarm.
In the embodiment, a fitting curve relation is analyzed by using a large amount of data of the temperature, the pressure and the flow of the pipeline medium, and then each single curve is subjected to correlation coupling; and correcting each coupling function by using the actual stress measurement result of each support and hanger, and finally dynamically analyzing the stress of other support and hangers without the measuring points by using the coupling function to realize risk early warning.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (6)
1. The utility model provides a thermal power factory pipeline stress coupling analytic system which characterized in that: the device comprises a pipeline (1), a front-end pipeline wall temperature sensor (2), a front-end fixed hanger (3), a front-end hanger force sensor (4), a front-end pipeline pressure sensor (5), a spring hanger (6), a flow sensor (7), a rear-end fixed hanger (8), a rear-end pipeline wall temperature sensor (9), a rear-end pipeline pressure sensor (10), a rear-end hanger force sensor (11), a spring hanger left force sensor (12), a computer (13) and a spring hanger right force sensor (14); the front end suspender force sensor (4) is arranged on the front end fixed hanger (3), the rear end suspender force sensor (11) is arranged on the fixed hanger (8) at the rear end, the spring hanger left side force sensor (12) and the spring hanger right side force sensor (14) are respectively arranged at two sides of the spring hanger (6), the front-end pipeline wall temperature sensor (2), the front-end pipeline pressure sensor (5), the flow sensor (7), the rear-end pipeline wall temperature sensor (9) and the rear-end pipeline pressure sensor (10) are all arranged on the pipeline (1), the front-end pipeline wall temperature sensor (2), the front-end suspender force sensor (4), the front-end pipeline pressure sensor (5), the flow sensor (7), the rear-end pipeline wall temperature sensor (9), the rear-end pipeline pressure sensor (10), the rear-end suspender force sensor (11) and the spring hanger right force sensor (14) are all connected with the computer (13).
2. The thermal power plant pipeline stress coupling analysis system of claim 1, wherein: the front end fixed hanger (3), the rear end fixed hanger (8) and the spring hanger (6) are all connected with the pipeline (1).
3. The thermal power plant pipeline stress coupling analysis system of claim 1, wherein: the front-end pipeline wall temperature sensor (2) and the rear-end pipeline wall temperature sensor (9) are both installed on the outer side metal wall of the pipeline (1).
4. The thermal power plant pipeline stress coupling analysis system of claim 2, wherein: the device also comprises a fixed hanger upper suspender (16) and a fixed hanger lower suspender (17); one end of the fixed hanger lower suspension rod (17) is connected with the pipeline (1), the other end of the fixed hanger lower suspension rod (17) is connected with the front end suspension rod force sensor (4), the front end suspension rod force sensor (4) is connected with one end of the fixed hanger upper suspension rod (16), and the other end of the fixed hanger upper suspension rod (16) is connected with the structure fixing steel frame (15).
5. The thermal power plant pipeline stress coupling analysis system of claim 2, wherein: the device also comprises a fixed hanger upper suspender (16) and a fixed hanger lower suspender (17); one end of the fixed hanger lower suspension rod (17) is connected with the pipeline (1), the other end of the fixed hanger lower suspension rod (17) is connected with the rear end suspension rod force sensor (11), the rear end suspension rod force sensor (11) is connected with one end of the fixed hanger upper suspension rod (16), and the other end of the fixed hanger upper suspension rod (16) is connected with the structure fixing steel frame (15).
6. The thermal power plant pipeline stress coupling analysis system of claim 2, wherein: the spring hanger is characterized by also comprising a spring hanger left pull rod (18), a spring hanger right pull rod (19), a left pressure plate (20), a right pressure plate (21), a left locking nut (22) and a right locking nut (23); the utility model discloses a construction method of building, including the spring gallows, the one end of spring gallows left-hand member (18) and spring gallows right-hand member (19) all is connected with pipeline (1), the other end of spring gallows left-hand member (18) and spring gallows right-hand member (19) all runs through with the fixed steelframe of structure (15), spring gallows left side force sensor (12) install on spring gallows left-hand member (18) through left clamp plate (20) and left side lock nut (22), and left clamp plate (20) and left side lock nut (22) all are located the top of the fixed steelframe of structure (15), spring gallows right side force sensor (14) install on spring gallows right-hand member (19) through right clamp plate (21) and right side lock nut (23), and right clamp plate (21) and right side lock nut (23) all are located the top of the fixed steelframe of structure (15).
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| CN113324180A (en) * | 2021-04-25 | 2021-08-31 | 华电电力科学研究院有限公司 | High temperature/high pressure pipeline state monitoring and risk assessment system of thermal power plant |
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