CN217483571U - Online monitoring device for operating condition of high-voltage frequency converter - Google Patents
Online monitoring device for operating condition of high-voltage frequency converter Download PDFInfo
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- CN217483571U CN217483571U CN202220744660.0U CN202220744660U CN217483571U CN 217483571 U CN217483571 U CN 217483571U CN 202220744660 U CN202220744660 U CN 202220744660U CN 217483571 U CN217483571 U CN 217483571U
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Abstract
The utility model provides a be used for high-voltage inverter operating condition on-line monitoring device, including the unit cabinet, unit cabinet top is equipped with wind speed monitoring mechanism and humiture monitoring mechanism, the end of giving vent to anger of wind speed monitoring mechanism and humiture monitoring mechanism all is connected with gas transmission mechanism, gas transmission mechanism's the end of giving vent to anger is connected with dust concentration monitoring mechanism, the utility model discloses can be at the in-process that uses through dust concentration value, converter export wind speed value and converter power unit cabinet top temperature value, confirm the time of clearing up adnexed particulate matter and dust on the filter screen.
Description
Technical Field
The utility model mainly relates to a technical field of high-voltage inverter, concretely relates to be used for high-voltage inverter operating condition on-line monitoring device.
Background
The high-voltage frequency converter is a speed regulation control device for controlling the rotating speed of an alternating-current high-voltage motor by changing output frequency and output voltage, and is widely applied to the industrial field.
According to the patent document with application number CN201611237002.8, a multifunctional high-voltage inverter control device and a method for presenting a control menu are disclosed, the device includes a display device, a control unit, a storage unit, a display output unit, and a display control unit. The utility model discloses a multi-functional high-voltage inverter controlling means can be to the supporting function of operating condition adjustment of converter in using with the cooperation of converter, and control content such as automatic present or switching motor speed governing, energy-conservation, soft play, debugging, energy repayment realizes the converter to the accurate control of motor, and the optimization equipment process flow increases efficiency, the energy saving.
At present, in the operation of the domestic high-voltage frequency converter, the cooling mode of the high-voltage frequency converter is that outdoor cold air enters the frequency converter through a ventilation inlet filter screen of a frequency converter room and a filter screen of a frequency converter body, and hot air is discharged through an air outlet of an air channel of the frequency converter after cooling the machine body and a power unit. The long-term operation of converter, converter room ventilation filter screen and converter body filter screen can adhere to the dust particulate matter. In order to ensure the cooling air supply quantity and the cleanness of a power unit and a transformer in the frequency converter, the filter screen needs to be periodically cleaned.
SUMMERY OF THE UTILITY MODEL
The utility model mainly provides a be used for high-voltage inverter operating condition on-line monitoring device to be used for solving the technical problem who provides among the above-mentioned background art.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
the device for online monitoring of the operating conditions of the high-voltage frequency converter comprises a unit cabinet, wherein a wind speed monitoring mechanism and a temperature and humidity monitoring mechanism are arranged at the top end of the unit cabinet, the gas outlet ends of the wind speed monitoring mechanism and the temperature and humidity monitoring mechanism are connected with a gas transmission mechanism, and the gas outlet end of the gas transmission mechanism is connected with a dust concentration monitoring mechanism;
the wind speed monitoring mechanism comprises an air outlet pipe arranged on the upper surface of the unit cabinet and a wind speed sensor arranged on the outer surface of the air outlet pipe;
the air conveying mechanism comprises a flow dividing assembly connected with the air outlet pipe and a first air conveying pipe connected with the air outlet end of the flow dividing assembly, and the first air conveying pipe is connected with the air inlet cleaning assembly;
the temperature and humidity monitoring mechanism comprises a second gas pipe, a plurality of temperature sensors and a humidity sensor, wherein one end of the second gas pipe is arranged on the outer surface of the first gas pipe, the other end of the second gas pipe extends into the top end of the unit cabinet, the temperature sensors are arranged at the top end of the second gas pipe, and the humidity sensor is arranged on the upper surface of the unit cabinet;
the dust concentration monitoring mechanism comprises a dust TSP concentration detector arranged on one side surface of the unit cabinet, and a monitoring transfer box arranged on the upper surface of the unit cabinet and electrically connected with the dust TSP concentration detector.
Furthermore, the reposition of redundant personnel subassembly include with the end of giving vent to anger of going out the tuber pipe is connected, and with the first defeated tuber pipe that the inlet end of first gas-supply pipe is connected, and with the defeated tuber pipe of second that the top case of first defeated tuber pipe is connected, the defeated tuber pipe of second is the U-shaped the utility model discloses in, carry out the tuber pipe combustion gas through first defeated tuber pipe and the defeated tuber pipe of second, and shunt through first defeated tuber pipe and the defeated tuber pipe of second.
Furthermore, the flow distribution assembly further comprises two first air valves arranged on the first air delivery pipe shell, and a second air valve arranged on the second air delivery pipe shell.
Furthermore, the clearance subassembly of admitting air including alternate in the inside slide bar of first gas transmission pipe is located the air vent of first gas transmission pipe bottom, install in proper order in a plurality of ejector pads of slide bar surface, and the cover is located the slide bar surface, just be located adjacent two keep off the hole doctor-bar between the ejector pad the utility model discloses in, promote through the ejector pad and keep off the hole doctor-bar and carry out reciprocating displacement in first gas transmission pipe to through the friction between keep off hole doctor-bar and the first gas transmission pipe inner wall, thereby scrape down the first gas transmission pipe inner wall on adnexed impurity.
Furthermore, the clearance subassembly of admitting air still including install in the ejector pad of ejector pad both ends surface the utility model discloses in, the ejector pad improves its and keeps off the area of contact between the hole doctor-bar through the ejector pad to improve the promotion effect to keeping off the hole doctor-bar.
Furthermore, the clearance subassembly of admitting air is still located including the cover the first support ring of first gas-supply pipe surface, with a plurality of bracing pieces that a side surface of first support ring is connected, and with the bracing piece is kept away from the second support ring that the one end of first support ring is connected, the second support ring is kept away from the one end of bracing piece is connected with electric putter, electric putter's execution end with the slide bar extends to outside one end and is connected.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses can confirm to the time that adnexed particulate matter and dust carried out the clearance on the filter screen through dust concentration value, converter export wind speed value and converter power unit cabinet top temperature value at the in-process that uses, avoid a large amount of impurities to pile up the filtration pore emergence that makes it on and block up, can change the filter screen according to actual need simultaneously.
The present invention will be explained in detail with reference to the drawings and specific embodiments.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is an enlarged view of the structure of region A in FIG. 3;
fig. 5 is a schematic structural view of the gas transmission mechanism and the dust TSP concentration detector of the present invention;
fig. 6 is a schematic structural view of the shunt assembly of the present invention;
FIG. 7 is a schematic view of the second gas pipe and the temperature sensor according to the present invention;
fig. 8 is an enlarged view of the structure of region a in fig. 7.
In the figure: 10. a unit cabinet; 20. a wind speed monitoring mechanism; 21. an air outlet pipe; 22. a wind speed sensor; 30. a temperature and humidity monitoring mechanism; 31. a second gas delivery pipe; 32. a temperature sensor; 33. a humidity sensor; 40. a gas delivery mechanism; 41. a flow diversion assembly; 42. an intake air cleaning assembly; 421. a slide bar; 422. a push block; 423. a vent hole; 424. a hole blocking scraper; 425. a first support ring; 426. a support bar; 427. a second support ring; 428. an electric push rod; 429. a push ring; 43. a first gas delivery pipe; 50. a dust concentration monitoring mechanism; 51. a dust TSP concentration detector; 52. and monitoring the transfer box.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, and on the contrary, these embodiments are provided so as to make the disclosure more thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In an embodiment, please refer to fig. 1-8, in a preferred embodiment of the present invention, an online monitoring device for operating conditions of a high-voltage inverter includes a unit cabinet 10, a wind speed monitoring mechanism 20 and a temperature and humidity monitoring mechanism 30 are disposed at the top end of the unit cabinet 10, the gas outlet ends of the wind speed monitoring mechanism 20 and the temperature and humidity monitoring mechanism 30 are both connected to a gas transmission mechanism 40, and the gas outlet end of the gas transmission mechanism 30 is connected to a dust concentration monitoring mechanism 50;
the wind speed monitoring mechanism 20 comprises an air outlet pipe 21 arranged on the upper surface of the unit cabinet 10 and a wind speed sensor 22 arranged on the outer surface of the air outlet pipe 21;
the air delivery mechanism 40 comprises a flow dividing component 41 connected with the air outlet pipe 21 and a first air delivery pipe 43 connected with the air outlet end of the flow dividing component 41, and the first air delivery pipe 43 is connected with an air inlet cleaning component 42;
the temperature and humidity monitoring mechanism 30 comprises a second gas pipe 31, one end of which is mounted on the outer surface of the first gas pipe 43, and the other end of which extends into the top of the unit cabinet 10, a plurality of temperature sensors 32 mounted on the top of the second gas pipe 31, and a humidity sensor 33 mounted on the upper surface of the unit cabinet 10;
the dust concentration monitoring mechanism 50 comprises a dust TSP concentration detector 51 mounted on one side surface of the unit cabinet 10, and a monitoring transfer box 52 mounted on the upper surface of the unit cabinet 10 and electrically connected with the dust TSP concentration detector 51;
it should be noted that, in this embodiment, by monitoring the dust concentration, the operation monitoring personnel can find the dust raising point or the defect existing near the frequency converter chamber in time, and eliminate the dust raising point or the defect in time, so as to optimize the operation condition of the frequency converter;
furthermore, by monitoring the wind speed at the outlet of the unit cabinet 10, an operation monitoring worker can find the problem of blockage of the filter screen of the body of the unit cabinet 10 or the filter screen at the inlet of the unit cabinet 10 in time according to the wind speed value at the air outlet of the unit cabinet 10;
furthermore, by monitoring the temperature and humidity in the unit cabinet 10, the operation monitoring personnel can start the functions of air conditioning, refrigeration, heating and dehumidification in time according to the temperature and humidity in the unit cabinet 10;
furthermore, by monitoring the temperature of the top of the unit cabinet 10 in real time, the operation monitoring personnel can judge whether the fan at the top of the unit cabinet 10 is robbed according to a plurality of temperature measuring points formed by a plurality of temperature sensors 32, and when the air supply amount of the frequency converter is insufficient, the fan at the top of the cabinet is robbed, which affects the heat dissipation of part of the power units.
Specifically, please refer to fig. 1, 5 and 6 again, in another preferred embodiment of the present invention, the flow dividing assembly 41 includes a first air duct 411 connected to the air outlet end of the air outlet pipe 21 and connected to the air inlet end of the first air duct 43, and a second air duct 412 connected to the top box of the first air duct 411, and the second air duct 412 is U-shaped;
the flow dividing assembly 41 further comprises two first air valves 413 mounted on the shell of the first air delivery pipe 411, and a second air valve 414 mounted on the shell of the second air delivery pipe 412;
it should be noted that, in this embodiment, the airflow discharged from the air outlet pipe 21 is delivered through the first air delivery pipe 411 and the second air delivery pipe 412, and is split through the first air delivery pipe 411 and the second air delivery pipe 412;
furthermore, whether the airflow in the air outlet pipe 21 enters the first air delivery pipe 411 is controlled by the first air valve 413 close to the air outlet pipe 21, whether the airflow enters the first air delivery pipe 43 through the first air delivery pipe 411 is controlled by the other air valve 414, and whether the airflow enters the first air delivery pipe 43 through the second air delivery pipe 412 is controlled by the second air valve 414, so that the air delivery pipes of the air outlet pipe 21 are switched, and the air delivery pipes can be replaced in time when one of the pipes fails.
Specifically, please refer to fig. 3 and 4 again, in another preferred embodiment of the present invention, the air inlet cleaning assembly 42 includes a sliding rod 421 inserted into the first air pipe 43, an air hole 423 disposed at the bottom end of the first air pipe 43, a plurality of pushing blocks 422 sequentially mounted on the outer surface of the sliding rod 421, and a hole blocking scraping blade 424 sleeved on the outer surface of the sliding rod 421 and located between two adjacent pushing blocks 422;
the air inlet cleaning assembly 42 further comprises push rings 429 which are arranged on the outer surfaces of the two ends of the push block 422;
the intake air cleaning assembly 42 further comprises a first support ring 425 sleeved on the outer surface of the first air delivery pipe 43, a plurality of support rods 426 connected with one side surface of the first support ring 425, and a second support ring 427 connected with one end of the support rods 426 far away from the first support ring 425, wherein one end of the second support ring 427 far away from the support rods 426 is connected with an electric push rod 428, and an execution end of the electric push rod 428 is connected with one end of the sliding rod 421 extending to the outside;
it should be noted that, in this embodiment, the sliding rod 421 drives the pushing block 422 to move in the first air pipe 43, and the pushing block 422 pushes the hole blocking scraper 424 to move in the first air pipe 43, so that when the hole blocking scraper 424 blocks the vent 423, outside air is blocked from entering the first air pipe 43, and when the sliding rod 421 drives the pushing block 422 to return, air flow conveyed by the first air pipe 43 sequentially passes through a gap in the center of the hole blocking scraper 424 and a gap formed between the pushing block 422 and the inner wall of the first air pipe 43 to flow, and finally flows into the dust TSP concentration detector 51;
the push block 422 pushes the hole blocking scraping blade 424 to perform reciprocating displacement in the first air conveying pipe 43, so that the friction between the hole blocking scraping blade 424 and the inner wall of the first air conveying pipe 43 is utilized to scrape off impurities attached to the inner wall of the first air conveying pipe 43;
further, the push block 422 increases the contact area with the shutter hole wiper 424 by the push ring 429, thereby increasing the pushing effect on the shutter hole wiper 424;
further, a support is provided for the second support ring 427 by the first support ring 425 and the support bar 426, a support is provided for the electric push rod 428 by the second support ring 427, and the electric push rod 428 drives the sliding bar 421 to move.
As shown in fig. 1 to 8, there will also be provided an online monitoring device for operating conditions of a high-voltage frequency converter according to the above embodiments, including the following steps:
step one, monitoring the wind speed of airflow in the air outlet pipe 21 through a wind speed sensor 22, and transmitting an electric signal with wind speed information to a monitoring transfer box 52;
conveying the airflow in the air outlet pipe 21 to a dust TSP concentration detector 51 through the air conveying mechanism 40, monitoring the dust concentration of the airflow in the air outlet pipe 21 through the TSP concentration detector 51, and transmitting an electric signal with dust concentration information to a monitoring transfer box 52;
thirdly, conveying the external air flow into a dust TSP concentration detector 51 through the air conveying mechanism 40, monitoring the dust concentration of the air flow in the air outlet pipe 21 through the TSP concentration detector 51, and transmitting an electric signal with dust concentration information to a monitoring transfer box 52;
and step four, monitoring the top temperature of the unit cabinet 10 through the temperature sensor 32, monitoring the internal humidity of the unit cabinet 10 through the humidity sensor 33, and transmitting an electric signal with temperature information and humidity information to the monitoring transfer box 52.
Furthermore, in the step one, the measuring point of the wind speed sensor 22 is installed at the position 1/3 to 2/3 of the diameter of the pipeline of the air outlet pipe 21, and the wind direction measured on site is consistent with the direction calibrated by the factory when the wind speed sensor is installed;
further, the temperature range of the temperature sensor 32 in the third step is-20 ℃ to 100 ℃, and the installation position of the temperature sensor 32 should be at a height of 1.5m from the ground;
further, the humidity range of the humidity sensor 33 in the third step is 0% to 100%;
furthermore, if the dust concentration is increased, a frequency converter chamber outside the unit cabinet 10 is overhauled in time, window opening ventilation or other measures are taken, the indoor dust concentration is reduced in time, and the degree of particulate matter attached to the filter screen is reduced;
when the air quantity at the air outlet of the frequency converter is reduced to be below 2m/s, the display values of 3 temperature measuring points at the top of the frequency converter cabinet can be different at the same time, and a filter screen of the frequency converter body and a filter screen of a frequency converter chamber are cleaned in time, so that the use flexibility of the filter screen is improved;
when the indoor temperature of the frequency converter exceeds 35 ℃ or the indoor humidity of the frequency converter exceeds 60%, the air conditioner is put into the room to perform the functions of refrigeration, heating or dehumidification, and the running conditions of the frequency converter in the unit cabinet 10 are improved.
The utility model discloses a concrete operation as follows:
monitoring the wind speed of the airflow in the air outlet pipe 21 through the wind speed sensor 22, and transmitting an electric signal with the wind speed information to the monitoring transfer box 52;
conveying the air flow in the air outlet pipe 21 to a dust TSP concentration detector 51 through the air conveying mechanism 40, monitoring the dust concentration of the air flow in the air outlet pipe 21 through the TSP concentration detector 51, and transmitting an electric signal with the dust concentration information to a monitoring transfer box 52;
the external air flow is conveyed to a dust TSP concentration detector 51 through the air conveying mechanism 40, the dust concentration of the air flow in the air outlet pipe 21 is monitored through the TSP concentration detector 51, and an electric signal with the dust concentration information is transmitted to a monitoring transfer box 52;
the temperature of the top of the unit cabinet 10 is monitored by the temperature sensor 32, the humidity inside the unit cabinet 10 is monitored by the humidity sensor 33, and an electric signal with temperature information and humidity information is transmitted to the monitoring transfer box 52.
The above description is taken as an example to describe the present invention with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, as long as the present invention is adopted, the method concept and the technical solution of the present invention are performed to perform this kind of insubstantial improvement, or the concept and the technical solution of the present invention are directly applied to other occasions without improvement, all within the protection scope of the present invention.
Claims (6)
1. The device for online monitoring of the operating condition of the high-voltage frequency converter comprises a unit cabinet (10), and is characterized in that a wind speed monitoring mechanism (20) and a temperature and humidity monitoring mechanism (30) are arranged at the top end of the unit cabinet (10), the gas outlet ends of the wind speed monitoring mechanism (20) and the temperature and humidity monitoring mechanism (30) are connected with a gas transmission mechanism (40), and the gas outlet end of the gas transmission mechanism (40) is connected with a dust concentration monitoring mechanism (50);
the wind speed monitoring mechanism (20) comprises an air outlet pipe (21) arranged on the upper surface of the unit cabinet (10) and a wind speed sensor (22) arranged on the outer surface of the air outlet pipe (21);
the air conveying mechanism (40) comprises a flow dividing assembly (41) connected with the air outlet pipe (21), and a first air conveying pipe (43) connected with the air outlet end of the flow dividing assembly (41), wherein the first air conveying pipe (43) is connected with an air inlet cleaning assembly (42);
the temperature and humidity monitoring mechanism (30) comprises a second air conveying pipe (31) with one end installed on the outer surface of the first air conveying pipe (43) and the other end extending into the top end of the unit cabinet (10), a temperature sensor (32) installed at the top end of the second air conveying pipe (31), and a humidity sensor (33) installed on the upper surface of the unit cabinet (10);
the dust concentration monitoring mechanism (50) comprises a dust TSP concentration detector (51) installed on one side surface of the unit cabinet (10) and a monitoring transfer box (52) installed on the upper surface of the unit cabinet (10) and electrically connected with the dust TSP concentration detector (51).
2. The device for on-line monitoring of the operating condition of the high-voltage inverter as claimed in claim 1, wherein the shunting assembly (41) comprises a first air transmission pipe (411) connected with an air outlet end of the air outlet pipe (21) and connected with an air inlet end of the first air transmission pipe (43), and a second air transmission pipe (412) connected with a top box of the first air transmission pipe (411), wherein the second air transmission pipe (412) is U-shaped.
3. The device for on-line monitoring of the operating condition of the high-voltage frequency converter according to claim 2, wherein the shunt assembly (41) further comprises two first air valves (413) installed on a housing of the first air delivery pipe (411), and a second air valve (414) installed on a housing of the second air delivery pipe (412).
4. The device for on-line monitoring of the operating condition of the high-voltage frequency converter according to claim 1, wherein the air inlet cleaning assembly (42) comprises a sliding rod (421) inserted into the first air pipe (43), a vent hole (423) arranged at the bottom end of the first air pipe (43), a plurality of push blocks (422) sequentially arranged on the outer surface of the sliding rod (421), and a blocking hole scraping blade (424) sleeved on the outer surface of the sliding rod (421) and positioned between two adjacent push blocks (422).
5. The device for on-line monitoring of the operating condition of the high-voltage frequency converter as recited in claim 4, wherein said inlet cleaning assembly (42) further comprises push rings (429) mounted on the outer surfaces of both ends of said push block (422).
6. The device for online monitoring of the operating condition of the high-voltage frequency converter as recited in claim 4, wherein the inlet cleaning assembly (42) further comprises a first support ring (425) sleeved on the outer surface of the first gas pipe (43), a plurality of support rods (426) connected with one side surface of the first support ring (425), and a second support ring (427) connected with one end of the support rod (426) far away from the first support ring (425), one end of the second support ring (427) far away from the support rod (426) is connected with an electric push rod (428), and an actuating end of the electric push rod (428) is connected with one end of the sliding rod (421) extending to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220744660.0U CN217483571U (en) | 2022-04-01 | 2022-04-01 | Online monitoring device for operating condition of high-voltage frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220744660.0U CN217483571U (en) | 2022-04-01 | 2022-04-01 | Online monitoring device for operating condition of high-voltage frequency converter |
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| Publication Number | Publication Date |
|---|---|
| CN217483571U true CN217483571U (en) | 2022-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220744660.0U Active CN217483571U (en) | 2022-04-01 | 2022-04-01 | Online monitoring device for operating condition of high-voltage frequency converter |
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| Country | Link |
|---|---|
| CN (1) | CN217483571U (en) |
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2022
- 2022-04-01 CN CN202220744660.0U patent/CN217483571U/en active Active
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