CN208316614U - A kind of excitation system wind pressure monitoring device - Google Patents
A kind of excitation system wind pressure monitoring device Download PDFInfo
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- CN208316614U CN208316614U CN201820997984.9U CN201820997984U CN208316614U CN 208316614 U CN208316614 U CN 208316614U CN 201820997984 U CN201820997984 U CN 201820997984U CN 208316614 U CN208316614 U CN 208316614U
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- wind pressure
- control module
- monitoring device
- normally closed
- pressure monitoring
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Abstract
The utility model discloses a kind of excitation system wind pressure monitoring devices, including screen cabinet, partition, control module and field regulator, the partition is horizontally set in the screen cabinet, the partition is equipped with air outlet, the control module includes the first control module and the second control module, and first control module, the second control module are electrically connected with the field regulator respectively；First control module includes the first normally closed switch, and first normally closed switch includes mechanical shutter and the first wind pressure contact；Second control module includes wind pressure monitoring device and the second normally closed switch, and the wind pressure monitoring device is connected with second normally closed switch, and second normally closed switch includes mechanical shutter and the second wind pressure contact.Using the utility model, have fan trouble wrong report few, the high advantage of monitoring accuracy.
Description
Technical field
The utility model relates to a kind of wind pressure monitoring device more particularly to a kind of excitation system wind pressure monitoring devices.
Background technique
Excitation system need to guarantee to run reliably and with long-term as power plant important equipment.Excitation system power cabinet is cooling at present
Blower be generally loaded on screen bottom of cabinet portion, when system puts into operation blower starting silicon controlled rectifier is cooled down, air outlet from it is lower toward
It is upper to shield cabinet through entire, air outlet initial position is provided with mechanical shutter and wind pressure contact, blower air-supply jacks up baffle and touches
Wind pressure contact, wind pressure monitoring circuit is connected after contact movement, and adjuster prompts fan operation normal.
With the increase of running time, the decline of blower air output, mechanical part bite, contact act insensitive, cabinet top filter
Net blocking etc. is likely to result in wind pressure monitoring failure, to report fan trouble by mistake.Other than influencing equipment and operating normally, sending out
Wrong report fan trouble can interrupt set grid-connection process during motor plays machine, and natural gas or steam are lost during troubleshooting, is made
At economic loss.
Utility model content
Technical problem to be solved by the utility model is to provide a kind of excitation system wind pressure monitoring devices, including screen
Cabinet, partition, control module and field regulator；
Wherein, the partition is horizontally set in the screen cabinet, and the partition is equipped with air outlet, and the control module includes
First control module and the second control module, first control module, the second control module respectively with the field regulator
Electrical connection；
First control module includes the first normally closed switch, and first normally closed switch includes mechanical shutter and the first wind
Point is crimped, described mechanical shutter one end is movably connected on the air outlet edge of the partition, and the first wind pressure contact is located at institute
It states above mechanical shutter；
Second control module includes wind pressure monitoring device and the second normally closed switch, the wind pressure monitoring device and described second
Normally closed switch series connection, the wind pressure monitoring device are located at the screen cabinet inner upper, and second normally closed switch includes mechanical shutter
With the second wind pressure contact, the second wind pressure contact is located at below the mechanical shutter.
Further, the partition is equipped with one or more air outlets.
Further, each air outlet is respectively cooperating with equipped with the first wind pressure contact and one described second
Wind pressure contact, multiple first wind pressure contacts are in parallel, and multiple second wind pressure contacts are in parallel.
Further, the wind pressure monitoring device includes sensor and normal open switch, the sensor and the normal open switch
Electrical connection, second normally closed switch and normal open switch series connection.
It further, further include temperature monitoring, the temperature monitoring is set to above the partition, the temperature monitoring
Device is electrically connected with the field regulator.
Further, the screen cabinet is externally provided with adjuster cabinet, and the field regulator is set in the adjuster cabinet.
Implement the utility model embodiment, has the following beneficial effects: through newly-increased wind pressure contact and wind pressure monitoring device, it will
Resultant fault alarm is refined as mechanical breakdown alarm and fan comprehensive fault alarm, reduces fan trouble wrong report, improves prison
The accuracy of survey；Using temperature monitoring as mate-assist, reduce erroneous judgement when state recognition, simplify malfunction elimination, drops
Low false alarm bring economic loss.
Detailed description of the invention
It in order to more clearly describe the embodiments of the utility model or the technical solutions in the prior art and advantage, below will be right
Drawings that need to be used in the embodiment or the prior art description is briefly described, it should be apparent that, be described below in it is attached
Figure is only that some embodiments of the utility model is not making the creative labor for those of ordinary skill in the art
Under the premise of, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of structural schematic diagram of excitation system wind pressure monitoring device of the utility model；
Fig. 2 is the circuit diagram of the first control module in a kind of excitation system wind pressure monitoring device of the utility model；
Fig. 3 is the circuit diagram of the second control module in a kind of excitation system wind pressure monitoring device of the utility model.
Wherein, attached drawing correspondence markings in figure are as follows:
1- screen cabinet 2- partition 21- air outlet
3- the first control module 31- the first normally closed switch 311- the first wind pressure contact
4- the second control module 41- the second normally closed switch 411- the second wind pressure contact
42- normal open switch
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type is described in further detail.Obviously, described embodiment is only the utility model one embodiment, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Every other embodiment obtained is put, is fallen within the protection scope of the utility model.
" one embodiment " or " embodiment " referred to herein, which refers to, may be included at least one realization side of the utility model
A particular feature, structure, or characteristic in formula.In the description of the present invention, it should be understood that term " on ", "lower",
The orientation or positional relationship of the instructions such as "left", "right" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of retouching
State the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second "
It is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicates indicated technical characteristic
Quantity." first " is defined as a result, the feature of " second " can be expressed or that imply includes one or more spy
Sign.Moreover, term " first ", " second " etc. are to be used to distinguish similar objects, without specific sequentially or first for describing
Order afterwards.It should be understood that the data used in this way are interchangeable under appropriate circumstances, so as to the utility model described herein
Embodiment can be performed in other sequences than those illustrated or described herein.
In the description that the utility model is created, it is to be understood that term " on ", "lower", "top", "bottom", "inner" etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
Description is created and simplifies, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific side
Position construction and operation, therefore should not be understood as the limitation created to the utility model.
In the present invention unless specifically defined or limited otherwise, the terms such as term " connected ", " connection " should be done extensively
Reason and good sense solution may be a detachable connection for example, it may be being fixedly connected, or integral；It can be mechanical connection, it can also be with
It is electrical connection；Can be directly connected, can also indirectly connected through an intermediary, can be inside two elements be connected or
The interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
It as shown in Fig. 1, is a kind of excitation system wind pressure monitoring device of the utility model, including screen cabinet 1, partition 2, control
Molding block, temperature monitoring and field regulator.
The partition 2 is laterally set in the screen cabinet 1, and the screen cabinet 1 is separated into two independent spaces up and down, described
Partition 2 is set there are two air outlet 21.
The control module includes the first control module 3 and the second control module 4, and first control module 3, second is controlled
Molding block 4 is electrically connected with the field regulator respectively, and as shown in Fig. 2, first control module 3 includes two first normal
Make and break closes 31, and two first normally closed switch 31 respectively correspond two air outlets 21 and are arranged, described two first normally closed switch
31 is in parallel, and as shown in Fig. 3, second control module 4 includes two the second normally closed switch 41 and a wind pressure monitoring device, and two
A second normally closed switch 41 respectively corresponds two air outlets 21 and is arranged, and described two second normally closed switch 41 are in parallel,
The wind pressure monitoring device is set to 2 top of the partition close to the position that screen cabinet 1 pushes up, and the wind pressure monitoring device includes sensor and often
Switch 42, the sensor are electrically connected with the normal open switch 42, the second normally closed switch 41 of the parallel connection with it is described normally opened
Switch 42 is connected.
First normally closed switch 31 includes mechanical shutter and the first wind pressure contact 311, mechanical shutter one end rotation
It is connected to 21 edge of air outlet of the partition 2, the first wind pressure contact 311 is located at 21 top of air outlet, and described the
Two normally closed switch 41 include mechanical shutter and the second wind pressure contact 411, and the second wind pressure contact 411 is located at the air outlet 21
Lower section, when having wind to pass through at the air outlet 21, the mechanical shutter is contacted with the first wind pressure contact 311, when described
When air outlet 21 passes through without wind, the mechanical shutter is contacted with the second wind pressure contact 411.
The temperature monitoring is set in the screen cabinet 1 of 2 top of partition, the temperature monitoring and the adjustment of field excitation
Device electrical connection.
The screen cabinet 1 is externally provided with adjuster cabinet, and the field regulator is set in the adjuster cabinet, the adjuster cabinet
In be additionally provided with industrial personal computer, the field regulator and the industry control mechatronics, the field regulator and the industrial personal computer are equal
It can display alarm.
Blower is equipped with below the partition 2 of the wind pressure monitoring device, the wind of the blower passes through the air outlet of the partition 2
21 flow to 1 inner upper end of screen cabinet, are received by the sensor of the wind pressure monitoring device, sensor receive after wind pressure signal with set
Fixed wind pressure threshold value is compared, and when wind pressure is lower than partial pressure threshold value, normal open switch 42 is closed.
Accordingly, start the blower, the mechanical shutter separates simultaneously under Action of Wind pressure with the second wind pressure contact 411
It is contacted with the first wind pressure contact 311, at this point, the first wind pressure contact 311 is contacted with the mechanical shutter, i.e., described
One normally closed switch 31 is in closed state, and the first control module 3 is disconnected with the field regulator, and the field regulator is not
Show mechanical shutter failure alarm signal；The mechanical shutter is separated with the second wind pressure contact 411, i.e., described second is normally closed
Switch 41 is in an off state, but since the wind pressure for shielding 1 top of cabinet at this time is normal, normal open switch 42 is now in off-state,
Therefore second control module 4 is also disconnected with the field regulator, and the field regulator does not show fan comprehensive event
Hinder alarm signal；
When there is mechanical shutter failure, the mechanical shutter cannot be contacted with the first wind pressure contact 311, i.e., described
First normally closed switch 31 is in an off state, and the first control module 3 is connected with the field regulator at this time is formed into a loop, described
Field regulator reminds mechanical shutter failure；The mechanical shutter is contacted with the second wind pressure contact 411, i.e., described second often
Make and break closes 41 and is in closed state, and second control module 4 is disconnected with the field regulator, and the field regulator is not
Show fan comprehensive failure alarm signal；
When there is fan comprehensive failure, due to still there is smaller wind pressure, mechanical shutter does not connect with the second wind pressure contact 411
Touching, i.e., the second normally closed switch 41 is in an off state, and since the sensor of the wind pressure monitoring device is received lower than wind pressure threshold
The wind pressure of value, the normal open switch 42 are closed, at this point, the second control module 4 is connected with the field regulator and is formed into a loop, institute
It states field regulator and reminds fan comprehensive failure；The mechanical shutter is contacted with the first wind pressure contact 311, i.e., and described first
Normally closed switch 31 is in closed state, and the first control module 3 is not formed into a loop with field regulator connection at this time, described to encourage
Magnestat does not show mechanical shutter failure alarm signal.
Since two air outlets 21 cooperate the first normally closed switch 31 being equipped in parallel, cooperate the second normally closed switch 41 being equipped with
Also in parallel, when the mechanical shutter of wherein side air outlet 21 breaks down or in which the wind pressure of side becomes smaller, the side air outlet
21 the first normally closed switch 31, the second normally closed switch 41 will cooperate wind pressure monitoring device to make above-mentioned failure response, improve prison
The accuracy of control.
The temperature monitoring incudes the temperature in the screen cabinet 1 in real time, in alarm to auxiliary judgment failure cause.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the protection scope of the utility model.
Claims (6)
1. a kind of excitation system wind pressure monitoring device, including screen cabinet (1), partition (2), control module and field regulator (6), institute
It states partition (2) to be horizontally set in the screen cabinet (1), the partition (2) is equipped with air outlet (21), which is characterized in that the control
Molding block includes the first control module (3) and the second control module (4), first control module (3), the second control module
(4) it is electrically connected respectively with the field regulator (6)；
First control module (3) includes the first normally closed switch (31), and first normally closed switch (31) includes mechanical shutter
With the first wind pressure contact (311), described mechanical shutter one end is movably connected on air outlet (21) edge of the partition (2), institute
The first wind pressure contact (311) is stated to be located above the mechanical shutter；
Second control module (4) includes wind pressure monitoring device and the second normally closed switch (41), the wind pressure monitoring device with it is described
Second normally closed switch (41) series connection, the wind pressure monitoring device are located at screen cabinet (1) inner upper, second normally closed switch
It (41) include mechanical shutter and the second wind pressure contact (411), the second wind pressure contact (411) is located under the mechanical shutter
Side.
2. a kind of excitation system wind pressure monitoring device according to claim 1, which is characterized in that the partition (2) is equipped with
One or more air outlets (21).
3. a kind of excitation system wind pressure monitoring device according to claim 2, which is characterized in that each air outlet
(21) it is respectively cooperating with equipped with the first wind pressure contact (311) and the second wind pressure contact (411), it is multiple described
First wind pressure contact (311) is in parallel, and multiple second wind pressure contacts (411) are in parallel.
4. a kind of excitation system wind pressure monitoring device according to claim 1, which is characterized in that the wind pressure monitoring device packet
Sensor and normal open switch (42) are included, the sensor is electrically connected with the normal open switch (42), second normally closed switch
(41) it connects with the normal open switch (42).
5. a kind of excitation system wind pressure monitoring device according to claim 1, which is characterized in that further include temperature monitoring
(5), the temperature monitoring is set to above the partition (2), and the temperature monitoring is electrically connected with the field regulator (6)
It connects.
6. a kind of excitation system wind pressure monitoring device according to claim 1, which is characterized in that screen cabinet (1) peripheral hardware
There is adjuster cabinet, the field regulator (6) is set in the adjuster cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820997984.9U CN208316614U (en) | 2018-06-27 | 2018-06-27 | A kind of excitation system wind pressure monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820997984.9U CN208316614U (en) | 2018-06-27 | 2018-06-27 | A kind of excitation system wind pressure monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208316614U true CN208316614U (en) | 2019-01-01 |
Family
ID=64717275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820997984.9U Active CN208316614U (en) | 2018-06-27 | 2018-06-27 | A kind of excitation system wind pressure monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208316614U (en) |
-
2018
- 2018-06-27 CN CN201820997984.9U patent/CN208316614U/en active Active
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