CN211598971U - Forward and reverse rotation monitoring system of water pump - Google Patents
Forward and reverse rotation monitoring system of water pump Download PDFInfo
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- CN211598971U CN211598971U CN202020134577.2U CN202020134577U CN211598971U CN 211598971 U CN211598971 U CN 211598971U CN 202020134577 U CN202020134577 U CN 202020134577U CN 211598971 U CN211598971 U CN 211598971U
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Abstract
A positive and negative rotation monitoring system of a water pump comprises a test tube connected with a water outlet of the water pump and a water outlet pipe, wherein the test tube is provided with a water flow direction measuring mechanism, and when the water flow direction in a test pipeline is negative, the water flow direction measuring mechanism outputs a reverse measuring signal; the water flow returns to the fire pool from the fire pipeline through the water pump, and the water flow direction is negative; the power module is connected with the water flow direction measuring mechanism and used for receiving the reverse measuring signal and outputting a power driving signal when receiving the reverse measuring signal; and the alarm module is coupled with the power module and used for receiving the power driving signal and outputting an alarm signal when receiving the power driving signal. When the water pump is tested, the water pump works to judge that the water pump is not problematic, and when deviation occurs in the three-phase electric connection of the water pump and the water rotation direction deviation is caused, the water pump can give an alarm according to a reverse measurement signal measured by the water flow direction measuring mechanism, so that maintenance personnel can be prompted.
Description
Technical Field
The invention relates to the technical field of water pump monitoring, in particular to a positive and negative rotation monitoring system of a water pump.
Background
The fire-fighting water supply system mainly comprises a fire-fighting water pool, a water pump, a fire-fighting pipeline, a water inlet pipe for connecting the fire-fighting water pool and the water pump, and a water outlet pipe for connecting the water pump and the fire-fighting pipeline, wherein the water pump pumps the water in the fire-fighting water pool into the fire-fighting pipeline, and keeps a certain water pressure in the fire-fighting pipeline, and when a fire disaster occurs, the fire is extinguished through high-pressure water in the fire-fighting pipeline. For this reason, ensuring the validity of the state of the water pump is an important task in fire fighting water supply systems.
Because the fire water supply system is not used daily, and whether the fire water supply system works normally can not be known from the outside by maintenance personnel, the maintenance personnel are required to start the water pump regularly so as to determine the state of the water pump or pump the water pressure for the fire pipeline. In the prior art, the water pump state is only determined by turning on the water pump and knowing whether the water pump works or not.
However, the existing water pump generally adopts three-phase power supply, on one hand, a front-end power grid of a water pump power supply line cannot be maintained, and when a three-phase power wiring error occurs in the maintenance process of the power grid at the front end of the water pump power supply line, a phase angle deviation occurs in a power supply of the water pump, so that a normally positive water pump is inverted after being electrified; on the other hand, the construction of the power grid is generally completed by municipal units, the connection of the water pump is mostly completed by the construction units, and the wiring sequence of the water pump is deviated by different construction teams, so that the positive and negative rotation state conversion of the water pump is caused.
However, when the water pump only has a wiring sequence with deviation, the water pump still works after being electrified, the maintainers cannot know the steering of the water pump, once the steering of the water pump is changed, the water pump in the fire pool cannot be pumped into a fire pipeline, and once a fire disaster occurs, the fire fighting water supply system cannot supply water.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a positive and negative rotation monitoring system of a water pump, which can realize the detection of the reverse rotation state of the water pump in the maintenance process of the water pump.
The above object of the present invention is achieved by the following technical solutions:
a positive and negative rotation monitoring system of a water pump comprises a test tube connected with a water outlet of the water pump and a water outlet pipe, wherein the test tube is provided with a water flow direction measuring mechanism, and when the water flow direction in a test pipeline is negative, the water flow direction measuring mechanism outputs a reverse measuring signal; the water flow returns to the fire pool from the fire pipeline through the water pump, and the water flow direction is negative;
the power module is connected with the water flow direction measuring mechanism and used for receiving the reverse measuring signal and outputting a power driving signal when receiving the reverse measuring signal;
and the alarm module is coupled with the power module and used for receiving the power driving signal and outputting an alarm signal when receiving the power driving signal.
Through adopting above-mentioned technical scheme, in carrying out the testing process to the water pump, water pump work can judge that water pump itself is not problematic, when the deviation appears in water pump three-phase electricity wiring and leads to water direction of rotation deviation, can report to the police according to the reverse measuring signal of rivers direction measuring mechanism measurement to the suggestion maintainer.
As the utility model discloses an improvement, rivers direction measurement mechanism includes along the test tube radially stretch into the pivot in the test tube and be located the one end fixed connection's in the test tube with the pivot flow direction response piece, the fixed horizontally shifting block that is provided with in side of the outside one end of test tube is located in the pivot, the test tube external fixation is provided with a set of detection contact, it is rotatory that the flow direction response piece response rivers direction drives the pivot, when the interior rivers direction of test tube is the burden, the shifting block triggers detection contact.
Through adopting above-mentioned technical scheme, the flow direction response piece can drive the pivot rotation according to the rivers direction in the test tube to make the shifting block trigger and detect the contact, and then through detecting reverse measuring signal of contact output.
As the utility model discloses an improvement, the flow direction response piece is the triangular prism form, the triangle-shaped cross-section perpendicular to pivot axis of flow direction response piece, and the center of the triangle-shaped face in pivot fixed connection flow direction response piece top.
Through adopting above-mentioned technical scheme, the induction block of triangular prism form is great to the induction area of rivers, when rivers flow direction change, can drive the rotation of triangular prism form induction block along the pivot axis.
As the utility model discloses an improvement, the detection contact includes a static contact and is located the elastic moving contact of the horizontal both sides of static contact, the static contact is connected the power positive pole, the moving contact is stirred by the shifting block and is stirred with the static contact butt, when moving contact and static contact butt, by the moving contact output reverse measurement signal.
Through adopting above-mentioned technical scheme, the setting of two moving contacts for no matter which direction trigger detection contact is followed to the shifting block all can make moving contact and static contact butt each other.
As the utility model discloses an improvement, two static contacts are connected with one or gate circuit, and when arbitrary moving contact and static contact butt, or gate circuit output reverse measurement signal.
By adopting the technical scheme, when any moving contact is abutted against the fixed contact, the output of the OR gate circuit is high, and the output of the reverse measurement signal is realized.
As the utility model discloses an improvement, power module includes the triode and the relay of NPN type, the collecting electrode of triode is connected the power positive pole, and the basic level of triode is coupled rivers direction measuring mechanism for receive reverse measurement signal, the projecting pole of triode pass through the coil connection power negative pole of relay, and when the triode received reverse measurement signal, the relay output power drive signal.
By adopting the technical scheme, the arrangement of the triode ensures the power supply power of the relay.
As an improvement of the utility model, the alarm module includes a buzzer, the buzzer with the normally open contact of relay is connected in series in the power.
By adopting the technical scheme, the buzzer can realize sound alarm, so that the aim of prompting maintenance personnel is fulfilled.
As the improvement of the utility model, alarm module still includes wireless transmission module and the server of being connected with wireless transmission module, the server is connected with the display screen.
By adopting the technical scheme, the server and the display screen provide a framework basis for the acquisition and display of the big data of the water pump maintenance alarm.
In summary, the invention includes at least one of the following beneficial technical effects:
because the setting of rivers direction measurement mechanism, realized the detection to the water pump is just reversing, avoided to a certain extent because the condition that the fire extinguishing system that the water pump power reversal leads to can not supply water.
Drawings
Fig. 1 is a schematic view of a test tube installation position.
Fig. 2 is a schematic view of the internal structure of the test tube.
FIG. 3 is a system diagram of a forward and reverse rotation monitoring system of the water pump.
In the figure, 1, a water pump; 11. a water outlet pipe; 2. a test tube; 21. a housing; 3. a water flow direction measuring mechanism; 31. a rotating shaft; 32. a flow direction sensing block; 33. shifting blocks; 34. detecting a contact; 341. static contact; 342. a moving contact; 4. a power module; 5. and an alarm module.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 3, the forward and reverse rotation monitoring system for a water pump disclosed by the invention comprises a testing pipe 2 connected with a water outlet of the water pump 1 and a water outlet pipe 11, and a water flow direction measuring mechanism 3 arranged in the testing pipe 2, wherein the water flow direction measuring mechanism 3 is connected with a power module 4 and an alarm module 5. The water flow direction measuring mechanism 3 is used for detecting whether the water pump 1 rotates reversely or not, and gives an alarm through the alarm module 5 when the water pump 1 rotates reversely, so that maintenance personnel are prompted to overhaul the circuit.
Under normal conditions, the water pump 1 corotation is in the fire control pipeline with water pump 1 in the fire-fighting pond, for fire control pipeline water supply and keep certain water pressure in the fire control pipeline. When water pump 1 reverses, then draw back the water in the fire control pipeline to the fire water pond in, rivers direction measurement mechanism 3 only need measure rivers direction from this and can determine whether water pump 1 reverses.
Referring to fig. 1 and 2, the water flow direction measuring mechanism 3 includes a rotating shaft 31 extending into the test tube 2 along the radial direction of the test tube 2, and a flow direction sensing block 32 fixedly connected to one end of the rotating shaft 31 located in the test tube 2. Wherein, the outer side wall of the test tube 2 is fixedly welded with a shell 21, and the rotating shaft 31 penetrates through the shell 21 and is rotatably connected with the shell 21 and the test tube 2 through a bearing.
The flow direction sensing block 32 is a vertical triangular prism, the triangular section of the flow direction sensing block 32 is perpendicular to the axis of the rotating shaft 31, and the rotating shaft 31 is fixedly connected with the center of the triangular surface at the top of the flow direction sensing block 32. When water in the test tube 2 flows, the flow direction sensing block 32 senses the flow direction of the water to drive the rotating shaft 31 to rotate along the axis of the rotating shaft 31.
Further, the water flow direction measuring mechanism 3 further includes a shifting block 33 fixedly connected to the rotating shaft 31 and a detection contact 34 fixedly connected to the inner wall of the housing 21, and the shifting block 33 is located in the housing 21. The detection contact 34 includes a fixed contact 341 and an elastic moving contact 342 located at two horizontal sides of the fixed contact 341, and the fixed contact 341 is connected to the positive electrode of the power supply. When the water pump 1 is turned over, the water in the test tube 2 is driven to flow reversely, so that the shifting block 33 is driven to rotate by the flow direction sensing block and the rotating shaft 31, the moving contact 342 is pressed towards the static contact 341 by the rotating shifting block 33, and the moving contact 342 is abutted to the static contact 341. When the movable contact 342 abuts against the fixed contact 341, the movable contact 342 outputs a reverse measurement signal.
Further, the two fixed contacts 341 are connected to an input end of an or gate circuit through a wire, and an output end of the or gate circuit outputs an inverted measurement signal.
The power module 4 comprises an NPN-type transistor Q1 and a relay KM1, wherein the base of the transistor Q1 is connected to the output of the or gate circuit for receiving the reverse measurement signal. The collector of the triode Q1 is connected with the positive electrode of the power supply, and the emitter of the triode Q1 is connected with the negative electrode of the power supply through the coil of the relay KM 1. When the transistor Q1 receives the reverse measurement signal, the transistor Q1 is turned on, and the coil of the relay KM1 is energized, thereby outputting a power driving signal through the relay KM 1.
The alarm module 5 comprises a buzzer BEE, a wireless transmission module and a server in wireless connection with the wireless transmission module, and the server is connected with a display screen. The buzzer BEE, the normally open contact KM1-1 of the relay KM1, the wireless transmission module and the fixed resistor R2 are connected in series with a power supply. When the coil of the relay KM1 is electrified, the normally open contact KM1-1 is closed, the buzzer is electrified to output a sound alarm signal, meanwhile, the wireless transmission module is electrified, and the alarm signal is displayed on the display screen through the server through wireless transmission.
From the above, when the maintenance personnel test the water pump 1, the water pump 1 is started, and the water pump 1 works to prove that the water pump 1 has no abnormality. When the wiring of the power supply of the water pump 1 is disordered and the water pump 1 is reversed, the water flow direction measuring mechanism 3 can detect the negative reverse flow of water flow, so that a reverse measuring signal is output, and then the alarm module 5 is controlled by the power module 4 to give an alarm to prompt maintenance personnel of the wiring problem of the power supply of the water pump 1.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a positive reverse monitoring system of water pump which characterized in that: the device comprises a testing pipe (2) connected with a water outlet of a water pump (1) and a water outlet pipe (11), wherein the testing pipe (2) is provided with a water flow direction measuring mechanism (3), and when the water flow direction in a channel of the testing pipe (2) is negative, the water flow direction measuring mechanism (3) outputs a reverse measuring signal; the water flow returns to the fire pool from the fire pipeline through the water pump (1), and the water flow direction is negative;
the power module (4) is connected with the water flow direction measuring mechanism (3) and used for receiving the reverse measuring signal and outputting a power driving signal when receiving the reverse measuring signal;
and the alarm module (5) is coupled with the power module (4) and is used for receiving the power driving signal and outputting an alarm signal when receiving the power driving signal.
2. The system for monitoring positive and negative rotation of a water pump according to claim 1, wherein: rivers direction measurement mechanism (3) include radially stretch into pivot (31) in testing pipe (2) and be located the one end fixed connection's in testing pipe (2) flow direction sensing block (32) with pivot (31) along testing pipe (2), the fixed horizontally shifting block (33) that is provided with in side that pivot (31) are located the outside one end of testing pipe (2), testing pipe (2) external fixation is provided with a set of detection contact (34), it is rotatory to drive pivot (31) to flow direction sensing block (32) response rivers direction, when testing pipe (2) interior rivers direction is the burden, shifting block (33) trigger detection contact (34).
3. The system for monitoring positive and negative rotation of a water pump according to claim 2, wherein: the flow direction sensing block is triangular prism-shaped, the triangular section of the flow direction sensing block (32) is vertical to the axis of the rotating shaft (31), and the rotating shaft (31) is fixedly connected with the center of the triangular surface at the top of the flow direction sensing block.
4. The system for monitoring positive and negative rotation of a water pump according to claim 2, wherein: the detection contact (34) comprises a fixed contact (341) and elastic moving contacts (342) positioned on two horizontal sides of the fixed contact (341), the fixed contact (341) is connected with the positive electrode of the power supply, the moving contacts (342) are shifted by the shifting block (33) to abut against the fixed contact (341), and when the moving contacts (342) abut against the fixed contact (341), the moving contacts (342) output the reverse measurement signal.
5. The system for monitoring positive and negative rotation of a water pump according to claim 4, wherein: the two fixed contacts (341) are connected with an OR gate circuit, and when any movable contact (342) is abutted against the fixed contact (341), the OR gate circuit outputs the reverse measurement signal.
6. The system for monitoring positive and negative rotation of a water pump according to claim 1, wherein: the power module (4) comprises an NPN type triode and a relay, a collector of the triode is connected with the positive electrode of a power supply, a base of the triode is coupled with the water flow direction measuring mechanism (3) and used for receiving the reverse measuring signal, an emitter of the triode is connected with the negative electrode of the power supply through a coil of the relay, and when the triode receives the reverse measuring signal, the relay outputs the power driving signal.
7. The system for monitoring positive and negative rotation of a water pump according to claim 6, wherein: the alarm module (5) comprises a buzzer, and the buzzer and the normally open contact of the relay are connected in series with a power supply.
8. The system for monitoring positive and negative rotation of a water pump according to claim 7, wherein: the alarm module (5) further comprises a wireless transmission module and a server connected with the wireless transmission module, and the server is connected with a display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020134577.2U CN211598971U (en) | 2020-01-20 | 2020-01-20 | Forward and reverse rotation monitoring system of water pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020134577.2U CN211598971U (en) | 2020-01-20 | 2020-01-20 | Forward and reverse rotation monitoring system of water pump |
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| CN211598971U true CN211598971U (en) | 2020-09-29 |
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| CN202020134577.2U Active CN211598971U (en) | 2020-01-20 | 2020-01-20 | Forward and reverse rotation monitoring system of water pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137380A (en) * | 2021-04-29 | 2021-07-20 | 吴林彰 | Fire pump rivers detect controlling means |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137380A (en) * | 2021-04-29 | 2021-07-20 | 吴林彰 | Fire pump rivers detect controlling means |
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