CN220205047U - Automatic exhaust and detection device for water pump - Google Patents
Automatic exhaust and detection device for water pump Download PDFInfo
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- CN220205047U CN220205047U CN202321567583.7U CN202321567583U CN220205047U CN 220205047 U CN220205047 U CN 220205047U CN 202321567583 U CN202321567583 U CN 202321567583U CN 220205047 U CN220205047 U CN 220205047U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 126
- 238000001514 detection method Methods 0.000 title claims abstract description 35
- 230000003111 delayed effect Effects 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 33
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 206010063385 Intellectualisation Diseases 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an automatic exhaust and detection device of a water pump, which is arranged on an exhaust hole of the water pump and comprises a floating ball barrel and an electric ball valve which are connected through a pipeline. The electric ball valve and the float switch are respectively connected with an electric control device, and the electric control device is used for controlling the electric ball valve to be opened and closed in a delayed manner according to the opening and closing state of the float switch so as to realize automatic exhaust of the water pump and detection of the exhaust completion condition. The automatic water pump exhausting and detecting device has a simple structure, can realize automatic exhausting, can improve exhausting reliability, can be connected with intelligent automatic control systems such as a PLC (programmable logic controller) and the like, and has strong compatibility.
Description
Technical Field
The utility model belongs to the technical field of centrifugal water pumps, and particularly relates to an automatic water pump exhaust and water quantity detection device.
Background
Before the centrifugal pump in various pump stations is started, a water inlet valve is required to be opened, an exhaust valve on a pump shell is opened for exhausting, and the centrifugal pump is ensured to be full of water. Avoiding cavitation phenomenon of gas reserved in the centrifugal water pump when the water pump operates, and affecting the working performance, service life and safety of the water pump.
Along with the development of intellectualization, the intelligent and unmanned on duty of the pump station becomes a development trend, and the automatic exhaust of the centrifugal water pump and the detection of the exhaust of the water pump are an important guarantee for the safe operation of the unmanned pump station.
However, the existing automatic exhaust valve can only realize automatic exhaust, can not provide detection signals, can not determine the exhaust completion condition, and an unattended pump station can not find out the failure of the exhaust valve in time. And the quality of the exhaust valve is good and uneven, so that the reliability is difficult to ensure. The vacuum water diversion device can meet the requirements of exhausting and confirming the water filling in the pump, but adopts the vacuum pump and the matched pipeline pipe fitting and the control box, and has high manufacturing cost and high operation cost. The water inlet pipeline has pressure and the water inlet liquid level Gao Duyuan is higher than the water inlet of the water pump, so that water diversion can be completed without vacuum, and resource waste is caused.
Therefore, there is a need for a device for automatically exhausting and detecting water quantity of a water pump, which can reduce operation cost, realize automatic exhaust, and send out the state of full water of the water pump in the form of an electric signal, thereby improving the reliability of automatic exhaust.
Disclosure of Invention
The utility model provides an automatic water pump exhausting and detecting device, which can realize the automatic exhausting before starting the centrifugal water pump and the detecting function after the exhausting is finished, has low cost, low running cost, reliable running and can feed back the detecting information and improve the reliability of the automatic exhausting.
In order to solve the technical problems, the utility model is realized by adopting the following technical scheme:
the utility model provides a water pump automatic exhaust and detection device installs perpendicularly in centrifugal pump exhaust hole upper portion, includes floater bucket and the electric ball valve through the pipe connection, be provided with the ball float switch in the floater bucket, electric ball valve and ball float switch connect electrically controlled device respectively, electrically controlled device is used for controlling electric ball valve's opening and time delay to close according to ball float switch's on-off state.
According to the automatic water pump exhausting and detecting device provided by the utility model, the electric ball valve can be opened and closed in a delayed manner according to the on-off state of the float switch, so that the reliability of automatic water pump exhausting can be improved.
Further, in the device, the floating ball barrel is further provided with a water inlet and an exhaust outlet, the water inlet is connected with a water pump exhaust hole through a water inlet pipe, and the exhaust outlet is connected with the electric ball valve through an exhaust drain pipe.
Further, in the device, the exhaust drain pipe is higher than the action liquid level of the float switch, and the float switch is 10-20cm higher than the pump shell of the water pump. Thus, the float switch can be reliably turned off and on according to the liquid level.
Further, in the device, when no water exists in the floating ball barrel or the liquid level is lower than the floating action liquid level of the floating ball, the floating ball switch is in an off state; when the liquid level in the floating ball barrel is not lower than the floating action liquid level of the floating ball, the floating ball switch is in a closed state.
Further, in the device, a manual ball valve is installed on the water inlet pipe, and is opened when water is required to be injected into the water pump. The manual ball valve is also used for overhauling the centrifugal water pump by closing the valve.
Further, in the above device, the electric control device is adapted to receive a detection signal of the on-off state of the float switch, and control the on-off state of the electric ball valve according to the detection signal. The electric ball valve is used for performing switching action according to the control of the electric control device so as to control the on or off of the exhaust and the drainage.
Further, in the device, an intermediate relay and an electrifying delay relay are arranged in the electric control device, and when the switch state of the float switch is off, a normally open contact of the intermediate relay is connected with the electric ball valve to open the electric ball valve; when the switch state of the float switch is closed, the normally open contact of the intermediate relay is connected with the power-on delay relay, and the electric ball valve is controlled to be closed according to the preset time delay.
Further, in the above device, the switch state detection signal of the float switch is also suitable for being connected into a programmable logic controller or an intelligent control system. Therefore, remote control of automatic exhaust of the water pump can be realized, and when air exists in the water pump, an alarm signal is sent or automatic stop is triggered, so that unmanned guard is realized.
The automatic water pump exhausting and detecting device provided by the utility model has low running cost, can realize automatic water pump exhausting in the running process or the pump stopping period, can detect whether the exhausting is finished or not so as to confirm that the water pump is full of water, can improve the reliability of automatic exhausting by sending the state of the water pump full of water in a signal form, can be connected with intelligent control systems such as a PLC (programmable logic controller) and the like, improves the intellectualization of the automatic water pump exhausting, and realizes unmanned guard.
Drawings
FIG. 1 is a schematic diagram of the installation position of a water pump automatic exhaust and detection device according to an embodiment of the utility model;
FIG. 2 is a schematic diagram of a water pump automatic exhaust and detection device according to an embodiment of the present utility model;
FIG. 3 is an electrical control schematic diagram of a water pump automatic exhaust and detection device according to an embodiment of the utility model;
FIG. 4 is a wiring terminal layout of an electronic control device according to one embodiment of the present utility model;
reference numerals:
1. a manual ball valve; 2. a floating ball barrel; 2-1, water inlet holes; 2-2, an exhaust outlet; 3. a float switch; 4. an electric ball valve; 5. and a connecting pipeline.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Fig. 1 is a schematic view showing an installation position of an automatic exhausting and detecting device for a water pump according to an embodiment of the present utility model, which is vertically installed at an upper portion of an exhaust hole of a centrifugal water pump as shown in fig. 1. When the water pump is filled with water, the water can be discharged and exhausted through the automatic exhaust and detection device connected with the water pump exhaust hole.
Fig. 2 is a schematic diagram showing a structure of an automatic exhausting and detecting device of a water pump according to an embodiment of the present utility model. As shown in fig. 2, the automatic exhausting and detecting device of the water pump can comprise a connecting pipeline 5, a manual ball valve 1, a ball float barrel 2 and an electric ball valve 4, wherein a water inlet 2-1 and an exhausting outlet 2-2 are arranged on the ball float barrel 2, and a ball float switch 3 is arranged inside the ball float barrel. The water inlet 2-1 is connected with a water pump exhaust hole through a water inlet pipe, and the exhaust outlet is connected with an electric ball valve through an exhaust drain pipe. The manual ball valve 1 is arranged on the water inlet pipe and is used for inspection and maintenance of the automatic water pump exhausting and detecting device, and the manual ball valve is closed, so that other parts can be removed for maintenance and replacement without water leakage through the water pump exhaust hole; during the automatic exhaust of the water pump and the maintenance of the detection device, the water pump can be used as artificial exhaust when the water pump needs to be started.
Wherein, electric ball valve 4 and float switch 3 are connected electrically controlled device respectively, and electrically controlled device can be according to float switch's on-off state signal control electric ball valve's opening and time delay and close. The floating ball barrel 2 can buffer the air exhaust and the water discharge, and ensure that the water in the floating ball barrel is enough for the floating ball switch to act.
The float switch 3 is used for detecting the liquid level in the float barrel, and is in a disconnection state when no water exists in the float barrel or the liquid level is lower than the floating action liquid level of the float; when the liquid level in the floating ball barrel reaches or is higher than the action height of the floating ball, the floating ball switch is in a closed state.
The electric ball valve 4 can be controlled by an electric control device to perform switching action and is used for allowing the floating ball barrel to exhaust and drain or cutting off the exhaust and drain of the floating ball barrel. The electric control device is used for receiving the detection signal of the float switch and controlling the switch valve of the electric ball valve according to the state of the detection signal.
In order to ensure that the float switch reliably acts according to the liquid level, the exhaust drain pipe is required to be ensured to be higher than the liquid level of the float switch when in installation, and the float switch is 10-20cm higher than the highest point of the pump shell of the water pump. When no water exists in the floating ball barrel or the liquid level is lower than the floating action liquid level of the floating ball, the floating ball switch is in a disconnection state; when the liquid level in the floating ball barrel is not lower than the floating action liquid level of the floating ball, the floating ball switch is in a closed state. An intermediate relay KA, an electrifying delay relay KT, a connecting wire and the like can be arranged in the electric control device.
Fig. 3 is an electrical control schematic diagram of an automatic water pump exhausting and detecting device according to an embodiment of the present utility model. As shown in fig. 3, the electric control device can control the opening or closing of the electric ball valve through the closing or opening states of the switch contacts in the intermediate relay KA and the energizing delay relay KT. The control states may include an exhaust complete detection, an electric ball valve open, an electric ball valve closed, an electric ball valve delay closed, an exhaust complete normally open signal, and an exhaust complete normally closed signal.
Fig. 4 shows a wiring terminal layout of an electric control device in the automatic water pump exhausting and detecting device according to an embodiment of the present utility model. As shown in fig. 4, the connection terminal of the electronic control device includes a connection end with the float switch, a connection end with the electric ball valve, a power supply connection end and a signal output signal connection end.
In one embodiment of the utility model, the electric control device can receive a switch state detection signal of the floating ball switch and control the opening or closing of the electric ball valve according to the detection signal. The electric ball valve can be switched according to the control of the electric control device so as to control the on or off of the exhaust and drainage.
Specifically, when the on-off state of the float switch is off, the normally open contact of the intermediate relay is connected with the electric ball valve to open the electric ball valve; when the switch state of the float switch is closed, the normally open contact of the intermediate relay is connected with the power-on delay relay, and the electric ball valve is controlled to be closed according to the preset time delay.
The principle of realizing the automatic exhaust and detection functions by using the device is as follows:
when the water inlet valve of the centrifugal pump is opened and water inlet pressure exists at the water inlet, when air exists in the centrifugal pump, the air moves towards the highest point of the liquid level in the water, and the air enters the floating ball barrel along the exhaust hole of the centrifugal pump through the connecting pipeline (water inlet pipe), the manual ball valve and the water inlet hole of the floating ball barrel.
When the liquid level in the floating ball barrel is lower than the action liquid level of the floating ball, the floating ball switch is in an off state, the intermediate relay KA is in an off state, the normally closed contact of the intermediate relay KA is connected with the valve opening circuit of the electric ball valve, the electric ball valve 4 is in an on state, and air in the floating ball barrel is discharged through the electric ball valve; as the air in the pump is discharged, water enters the floating ball barrel along the connecting pipeline, and as the liquid level in the floating ball barrel rises, the floating ball switch starts to float upwards;
when the liquid level reaches the action liquid level of the float switch, the float switch is in a closed state, the intermediate relay KA is connected, the normally open contact of the intermediate relay KA is closed, and the electrifying delay relay KT is connected; after the power-on time delay relay is powered on, timing is started, at the moment, the liquid level in the floating ball barrel is continuously raised, when the liquid level is higher than the exhaust outlet, water is discharged to the drainage ditch through the electric ball valve, when artificial exhaust is simulated, the water is discharged from the exhaust outlet and continuously discharged for a period of time, so that sufficient exhaust is ensured, and the pump is ensured to be full of water;
when the timing time is up, the energizing delay relay KT acts, the normally open contact is closed, the valve closing circuit of the electric ball valve is switched on, the electric ball valve is switched off, water drainage and air exhaust are stopped, and air exhaust is completed. At this time, the float switch is always in a closed state, and the power-on delay relay is kept in a closed state.
In addition, a group of normally open normally closed points of the float switch can be used as a dry contact point signal for completing the exhausting of the centrifugal pump, the signal can be connected into a PLC or intelligent control system to serve as a pre-requisite condition for automatically or remotely starting the water pump, unmanned on duty is realized, the signal can also be connected into a water pump control secondary circuit, the manual exhausting workload is reduced, and the condition that the exhausting operation is forgotten before the pump is opened by human negligence is avoided.
Further, when new air enters the centrifugal pump in the running process or the pump stopping period, the air enters the floating ball barrel, the liquid level in the floating ball barrel is reduced, and when the liquid level in the floating ball barrel is reduced to the reset liquid level of the floating ball switch, the floating ball switch is reset and is in a disconnected state.
The floating ball switch is disconnected, the intermediate relay KA is powered off, the KA normally open contact is disconnected, the power-on delay relay KT is disconnected, the KA normally closed contact is connected with the valve opening circuit of the electric valve, the electric valve is opened, and the exhaust process is carried out again until the exhaust is completed.
The power-on delay relay KT is powered off, the state of a normally-open and normally-closed contact of the delay relay KT is reset, and the normally-open and normally-closed dry contact point can be connected into a PLC or an intelligent control system to be used as an alarm signal of the air in the water pump or trigger automatic shutdown, so that unmanned guard is realized; the water pump can be connected to control the secondary loop to trigger an alarm or an automatic stop, so that the workload of manually checking whether the water pump is in gas storage or not is reduced, the artificial negligence is avoided, and the operation safety of the water pump is improved.
The automatic water pump exhausting and detecting device provided by the utility model has low running cost, can realize automatic water pump exhausting in the running process or the pump stopping period, can detect whether the exhausting is finished or not so as to confirm that the water pump is full of water, can improve the reliability of automatic exhausting by sending the state of the water pump full of water in a signal form, can be connected with intelligent control systems such as a PLC (programmable logic controller) and the like, improves the intellectualization of the automatic water pump exhausting, and realizes unmanned guard.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (10)
1. Automatic exhaust and detection device of water pump installs on centrifugal water pump exhaust hole upper portion, its characterized in that: the electric ball valve comprises a floating ball barrel and an electric ball valve which are connected through a pipeline, wherein a floating ball switch is arranged in the floating ball barrel, the electric ball valve and the floating ball switch are respectively connected with an electric control device, and the electric control device is used for controlling the electric ball valve to be opened and closed in a delayed manner according to the opening and closing state of the floating ball switch.
2. The automatic water pump exhaust and detection device according to claim 1, wherein: the floating ball barrel is also provided with a water inlet and an exhaust outlet, the water inlet is connected with a water pump exhaust hole through a water inlet pipe, and the exhaust outlet is connected with an electric ball valve through an exhaust drain pipe.
3. The automatic water pump exhaust and detection device according to claim 2, wherein: the exhaust drain pipe is higher than the action liquid level of the float switch, and the float switch is 10-20cm higher than the pump shell of the water pump.
4. The water pump exhaust and detection device according to claim 3, wherein: when no water exists in the floating ball barrel or the liquid level is lower than the floating action liquid level of the floating ball, the floating ball switch is in a disconnection state; when the liquid level in the floating ball barrel is not lower than the floating action liquid level of the floating ball, the floating ball switch is in a closed state.
5. The automatic water pump exhaust and detection device according to claim 2, wherein: the manual ball valve is installed on the water inlet pipe, and is opened when water needs to be injected into the water pump.
6. The automatic water pump exhaust and detection device according to claim 5, wherein: the manual ball valve is also used for overhauling the centrifugal water pump by closing the valve.
7. The automatic water pump exhaust and detection device according to claim 1, wherein: the electric control device is suitable for receiving a switch state detection signal of the float switch and controlling the opening or closing of the electric ball valve according to the detection signal.
8. The automatic water pump exhaust and detection device according to claim 7, wherein: the electric ball valve is used for performing switching action according to the control of the electric control device so as to control the on or off of the exhaust and drainage.
9. The automatic water pump exhaust and detection device according to claim 1, wherein: an intermediate relay and an electrifying delay relay are arranged in the electric control device, and when the switch state of the float switch is off, a normally open contact of the intermediate relay is connected with the electric ball valve to open the electric ball valve; when the switch state of the float switch is closed, the normally open contact of the intermediate relay is connected with the power-on delay relay, and the electric ball valve is controlled to be closed according to the preset time delay.
10. The automatic water pump exhaust and detection device according to claim 1, wherein: the switch state detection signal of the float switch is also suitable for being connected into a programmable logic controller or an intelligent control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321567583.7U CN220205047U (en) | 2023-06-20 | 2023-06-20 | Automatic exhaust and detection device for water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321567583.7U CN220205047U (en) | 2023-06-20 | 2023-06-20 | Automatic exhaust and detection device for water pump |
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| Publication Number | Publication Date |
|---|---|
| CN220205047U true CN220205047U (en) | 2023-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321567583.7U Active CN220205047U (en) | 2023-06-20 | 2023-06-20 | Automatic exhaust and detection device for water pump |
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| Country | Link |
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| CN (1) | CN220205047U (en) |
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2023
- 2023-06-20 CN CN202321567583.7U patent/CN220205047U/en active Active
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