CN210265659U - Transformer substation's electric power facility vibration isolation device - Google Patents
Transformer substation's electric power facility vibration isolation device Download PDFInfo
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- CN210265659U CN210265659U CN201921232228.8U CN201921232228U CN210265659U CN 210265659 U CN210265659 U CN 210265659U CN 201921232228 U CN201921232228 U CN 201921232228U CN 210265659 U CN210265659 U CN 210265659U
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Abstract
The utility model belongs to the technical field of equipment manufacturing, and discloses a transformer substation electric power facility vibration isolation device which is provided with a device for determining the mechanical force form and intensity, the impact times, the pulse duration and the acceleration of the device by measurement and analysis according to the use occasion of the device; a processor of a range of vibration frequencies, a dominant frequency point and a corresponding amplitude; a calculator connected with the processor and used for calculating the vibration isolation coefficient according to the displacement, the speed, the acceleration and the weight of the vibration excitation value; and the image processing unit is connected with the processor and is used for determining a frequency ratio r and a corresponding damping ratio D value from the graph according to the required vibration isolation coefficient. This transformer substation's electric power facility vibration isolation mounting can carry out according to the local conditions to power equipment according to the different environment that power equipment located, and the power equipment of different environment work chooses for use different bradyseism technical equipment to carry out the bradyseism to power equipment, can reach the effect of doing things with half a effort doubly.
Description
Technical Field
The utility model belongs to the technical field of the equipment is made, especially, relate to a transformer substation's electric power facility vibration isolation mounting.
Background
At present, the mechanical forces to which the electrical equipment is subjected are of various forms, among which the most harmful are vibrations and shocks, which cause failures of about 80%. Their damage is mainly of two forms, one being strength damage: the equipment generates resonance with large amplitude under a certain excitation frequency, and finally the stress caused by the vibration acceleration exceeds the limit strength which can be born by the equipment to be damaged; or may be broken by impact stress generated by an impact exceeding the ultimate strength of the device. Secondly, fatigue failure: although the stress caused by vibration or impact is much lower than the strength of the material, the stress generated by vibration or multiple impacts for a long time exceeds the fatigue limit, and the material is subjected to fatigue damage. The electric power equipment has various types, and the electric power equipment on different occasions needs to bear the influence of vibration in different degrees, so the electric power equipment on different occasions needs to be analyzed, and the vibration damping device matched with the electric power equipment is selected to prolong the life of the electric power equipment.
In summary, the problems of the prior art are as follows: the electric power equipment has various types, and the electric power equipment on different occasions needs to bear the influence of vibration in different degrees, so the electric power equipment on different occasions needs to be analyzed, and the vibration damping device matched with the electric power equipment is selected to prolong the life of the electric power equipment.
Disclosure of Invention
Problem to prior art existence, the utility model provides a transformer substation's electric power facility vibration isolation mounting.
The utility model is realized in such a way that the vibration isolation device for the electric power facility of the transformer substation is provided with a device which can clearly determine the mechanical force form, the intensity, the impact times, the pulse duration and the acceleration of the device by measurement and analysis according to the use occasion of the device; a processor of a range of vibration frequencies, a dominant frequency point and a corresponding amplitude;
a calculator connected with the processor and used for calculating the vibration isolation coefficient according to the displacement, the speed, the acceleration and the weight of the vibration excitation value;
the image processing unit is connected with the processor and is used for determining a frequency ratio r and a corresponding damping ratio D value from the graph according to the required vibration isolation coefficient;
a frequency processing unit connected with the processor and used for calculating the natural frequency of the system according to the frequency ratio and the excitation frequency;
and the vibration isolation selection unit is connected with the processor and selects a vibration isolation selection unit suitable for vibration frequency and strength according to the rigidity of the vibration isolator.
This transformer substation's electric power facility vibration isolation mounting can carry out according to the local conditions to power equipment according to the different environment that power equipment located, and the power equipment of different environment work chooses for use different bradyseism technical equipment to carry out the bradyseism to power equipment, can reach the effect of doing things with half a effort doubly.
Spring vibration isolator is installed to the lower extreme of treater, spring vibration isolator's lower extreme is provided with middle quality piece system, the avris of middle quality piece system is provided with lower floor's spring vibration isolator.
The shock absorption effect is realized by installing the spring vibration isolator, and the shock generated in the operation process of the equipment can be better absorbed.
The processor is provided with a positioning device, and the positioning device is provided with a UPS.
The installation position of the processor is positioned through the positioning device, and the UPS uninterrupted unit is used for supplying power to the processor, so that the power requirement of the processor is met.
And the image processing unit is provided with a storage terminal, and the storage terminal is connected with the monitoring terminal through a wireless transmitter.
The data can be effectively stored by installing the storage terminal, and the signals can be transmitted by the wireless transmitter, so that the data can be conveniently checked.
Drawings
Fig. 1 is a schematic structural diagram of a vibration isolation device for a power facility of a transformer substation provided by an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a processor according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of an image processing unit according to an embodiment of the present invention;
in the figure: 1. a processor; 2. a calculator; 3. an image processing unit; 4. a frequency processing unit; 5. a vibration isolation selection unit.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to fig. 1 to 3.
The structure of the present invention will be described in detail with reference to the accompanying drawings.
The transformer substation electric power facility vibration isolation device is provided with a device, wherein the mechanical force form, the strength, the impact frequency, the pulse duration and the acceleration of the device are determined through measurement and analysis according to the use occasion of the device; a processor 1 for a range of vibration frequencies, a primary frequency point and a corresponding amplitude;
a calculator 2 connected with the processor 1 and used for calculating the vibration isolation coefficient according to the displacement, the speed, the acceleration and the weight of the vibration excitation value;
the image processing unit 3 is connected with the processor 1 and is used for determining a frequency ratio r and a corresponding damping ratio D value from a graph according to a required vibration isolation coefficient;
a frequency processing unit 4 connected to the processor 1, for determining a natural frequency of the system from the frequency ratio and the excitation frequency;
and the vibration isolation selection unit 5 is connected with the processor 1 and selects proper vibration frequency and strength according to the rigidity of the vibration isolator.
This transformer substation's electric power facility vibration isolation mounting can carry out according to the local conditions to power equipment according to the different environment that power equipment located, and the power equipment of different environment work chooses for use different bradyseism technical equipment to carry out the bradyseism to power equipment, can reach the effect of doing things with half a effort doubly.
Spring vibration isolator is installed to the lower extreme of treater 1, spring vibration isolator's lower extreme is provided with middle quality piece system, the avris of middle quality piece system is provided with lower floor's spring vibration isolator.
The shock absorption effect is realized by installing the spring vibration isolator, and the shock generated in the operation process of the equipment can be better absorbed.
The processor 1 is provided with a positioning device, and the positioning device is provided with a UPS.
The installation position of the processor 1 is positioned through the positioning device, and the UPS uninterrupted unit is used for supplying power to the processor, so that the power requirement of the processor is met.
The image processing unit 3 is provided with a storage terminal, and the storage terminal is connected with the monitoring terminal through a wireless transmitter.
The data can be effectively stored by installing the storage terminal, and the signals can be transmitted by the wireless transmitter, so that the data can be conveniently checked.
According to the using occasion of the equipment, the mechanical force form and the strength of the equipment, such as the impact times, the pulse duration and the acceleration, are determined through measurement or analysis; the range of vibration frequencies, the dominant frequency points and the corresponding amplitudes, etc. And calculating the vibration isolation coefficient according to the allowable vibration excitation value displacement, speed, acceleration or weight. And determining a frequency ratio r and a corresponding damping ratio D value according to the required vibration isolation coefficient. The natural frequency of the system is obtained from the frequency ratio and the excitation frequency, and the spring stiffness k of the vibration isolator is determined by k-mW 2. If the arrangement of the vibration isolators is asymmetrical with respect to the center of gravity, the spring stiffness of the vibration isolators should be calculated separately. And selecting a proper vibration isolator according to the vibration isolator rigidity by checking a vibration isolator manual. It is to be noted that the vibration isolator is selected to be consistent with the environmental conditions of the equipment; when the load difference of each supporting point is very large and vibration isolators with different specifications are required to be adopted, the deflection stress of each vibration isolator is equal, so that the equipment is in a horizontal state.
The formula of the vibration isolation coefficient is as follows. The shock absorber comprises a rubber shock absorber, a metal spring shock absorber, a JJ type support leg shock absorber, a JZ type shock absorber, a JP type flat plate shock absorber, an JPX type flat plate small load shock absorber and a JW type bowl shock absorber.
The damping principle mainly comprises the elimination and the weakening of vibration sources, namely the elimination or the weakening of impact sources, vibration sources and biogenic sources, so that the intensity of the impact sources, the vibration sources and the biogenic sources is reduced to the acceptable degree of engineering design. The vibration source comprises an external vibration source and an internal vibration source. The external vibration source refers to the vibration force of the electronic device bearing the carrier or the outside, and the internal vibration source refers to the vibration force of the electronic device. The method is used for isolating the vibration source and separating the vibration source from the equipment so as to reduce the influence of the vibration source on the equipment. If the isolated object is a device that generates a vibration source, it is isolated from the support base to reduce its effect on other surrounding equipment, called active vibration isolation, and if the isolated object is an electronic device or piece, it is isolated from the support to reduce its effect from the vibration source, called passive vibration isolation.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all the modifications and equivalents of the technical spirit of the present invention to any simple modifications of the above embodiments are within the scope of the technical solution of the present invention.
Claims (4)
1. The transformer substation electric power facility vibration isolation device is characterized in that the transformer substation electric power facility vibration isolation device is provided with a vibration isolator which is used for determining the mechanical force form and intensity, the impact frequency, the pulse duration and the acceleration of equipment through measurement and analysis according to the use occasion of the equipment; a processor of a range of vibration frequencies, a dominant frequency point and a corresponding amplitude;
a calculator connected with the processor and used for calculating the vibration isolation coefficient according to the displacement, the speed, the acceleration and the weight of the vibration excitation value;
the image processing unit is connected with the processor and is used for determining a frequency ratio r and a corresponding damping ratio D value from the graph according to the required vibration isolation coefficient;
a frequency processing unit connected with the processor and used for calculating the natural frequency of the system according to the frequency ratio and the excitation frequency;
and the vibration isolation selection unit is connected with the processor and selects a vibration isolation selection unit suitable for vibration frequency and strength according to the rigidity of the vibration isolator.
2. The substation electric power facility vibration isolation device of claim 1, wherein the spring vibration isolator is installed at the lower end of the processor, an intermediate mass block system is arranged at the lower end of the spring vibration isolator, and a lower spring vibration isolator is arranged at the side of the intermediate mass block system.
3. The substation electrical facility vibration isolation apparatus of claim 1, wherein the processor is mounted with a positioning device on which the UPS uninterruptible power supply is mounted.
4. The substation electric facility vibration isolation device according to claim 1, wherein a storage terminal is installed on the image processing unit, and the storage terminal is connected with a monitoring terminal through a wireless transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921232228.8U CN210265659U (en) | 2019-08-01 | 2019-08-01 | Transformer substation's electric power facility vibration isolation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921232228.8U CN210265659U (en) | 2019-08-01 | 2019-08-01 | Transformer substation's electric power facility vibration isolation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210265659U true CN210265659U (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921232228.8U Active CN210265659U (en) | 2019-08-01 | 2019-08-01 | Transformer substation's electric power facility vibration isolation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210265659U (en) |
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2019
- 2019-08-01 CN CN201921232228.8U patent/CN210265659U/en active Active
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