CN211824603U - Overflow alarm device for underground pump house - Google Patents
Overflow alarm device for underground pump house Download PDFInfo
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- CN211824603U CN211824603U CN202020585921.XU CN202020585921U CN211824603U CN 211824603 U CN211824603 U CN 211824603U CN 202020585921 U CN202020585921 U CN 202020585921U CN 211824603 U CN211824603 U CN 211824603U
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- liquid level
- relay
- alarm
- underground pump
- probe
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- 239000007788 liquid Substances 0.000 claims abstract description 80
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000000523 sample Substances 0.000 claims abstract description 29
- 238000012544 monitoring process Methods 0.000 claims abstract description 28
- 230000008054 signal transmission Effects 0.000 claims abstract 2
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 229920006351 engineering plastic Polymers 0.000 claims description 3
- 238000012806 monitoring device Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 5
- 238000012856 packing Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The embodiment of the utility model discloses underground pump house overflow alarm device, including water level monitoring unit and alarm output unit, water level monitoring unit includes liquid level relay and liquid level probe, the signal output part of liquid level probe and liquid level relay's signal input part electric connection, alarm output unit includes auxiliary relay and PLC module, gets a pair of normally open contact of liquid level relay output way and inserts auxiliary relay's coil to draw forth a pair of normally open contact from the auxiliary relay and insert the PLC module, the PLC module is used for receiving auxiliary relay's alarm signal to give well accuse host computer with alarm signal transmission. The embodiment of the utility model provides a through introducing liquid level relay, enlargies the processing with the input current signal to monitor the liquid level, and through alarm output unit's setting, can inform well accuse operating personnel rapidly, furthest strives for the time of reacting and handling the trouble, falls to minimumly with the loss.
Description
Technical Field
The embodiment of the utility model provides an embodiment relates to electric automatization technical field, concretely relates to underground pump house overflow alarm device.
Background
Aiming at Wenzhou western sewage treatment plants, four underground pump rooms are provided at present. The pump room is provided with a large number of centrifugal pumps and screw pumps, and most of the centrifugal pumps and the screw pumps are non-submersible. Therefore, the pump house is flooded with water, the motor is flooded, and the equipment is stopped due to failure, the production cannot be maintained, and huge economic loss and social pressure are brought.
The reason for the full water of the pump room mainly comes from the following two aspects: considering the position factor of an underground pump room, as the terrain is lower, the Wenzhou is a multi-wind and multi-rain city, and the water capacity of the underground pump room is limited, the liquid level of the underground pump room is increased or even filled with water when the rainstorm weather accumulated in a month or in a short time suddenly occurs; secondly, due to the particularity of media carried by the water pump of the underground pump house, mainly the mixture of sludge and sludge magnetic powder, on one hand, the abrasion of a pump body and a pipeline is larger than that of common media, on the other hand, most of the pump bodies are sealed in a packing mode, and water leakage at the packing position is technically inevitable, so that the possibility of water fullness of the underground pump house is increased to a great extent in the aspect of equipment.
Therefore, the existing preventive measures are to introduce an automatic water pumping system of an underground pump room and assist in monitoring and shooting, and a floating ball is used for controlling the high liquid level of a water pump to start and stop at the low liquid level. However, the problem cannot be solved, firstly, the pumping system has faults, for example, the control system and the pumping pump have faults, so that accumulated water cannot be discharged in time and is accumulated more and more; secondly, if extreme events such as pipeline damage or packing abrasion leak occur, the instantaneous large-flow water leakage far exceeds the working load of the water pump; in addition, a single-point monitoring camera has a visual dead angle in an underground pump room, the observation of the single-point monitoring camera is interfered by light rays, equipment resolution, human factors and the like, the initial fault point is difficult to be timely and effectively found, the initial fault point is possibly enlarged when the initial fault point is found, the response time is very short when no compensation is carried out, particularly when the water leaks from a pipeline and a packing, and if the water cannot be quickly responded, the water-full event of the pump room is caused.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides an underground pump house overflow alarm device to solve the problem of among the prior art pump house full water monitoring inefficiency.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
according to the utility model discloses the first aspect of the embodiment, an overflow alarm device of underground pump house, include:
the water level monitoring unit comprises a liquid level relay and a liquid level probe, and the signal output end of the liquid level probe is electrically connected with the signal input end of the liquid level relay;
the alarm output unit comprises an intermediate relay and a PLC module, a pair of normally open contacts of the liquid level relay output path are accessed to coils of the intermediate relay, the normally open contacts are led out from the intermediate relay to be accessed to the PLC module, and the PLC module is used for receiving alarm signals of the intermediate relay and transmitting the alarm signals to the central control upper computer.
Further, the liquid level relay comprises an amplifying circuit for amplifying the input current signal.
Further, the liquid level probe is vertically fixed on a wall body of the underground pump room, the top of the liquid level probe is a liquid level high-level end, the bottom of the liquid level probe is a liquid level low-level end, and the installation height of the liquid level probe is a preset alarm water level height.
Furthermore, the liquid level probe is fixed on the wall body through a fixing support, and the fixing support is made of engineering plastics.
Further, the water level monitoring unit still includes and is annular ground flat steel, ground flat steel level is fixed subaerial to along the wall body distribution of underground pump room, wherein, the low level end of liquid level probe is fixed on ground flat steel.
The embodiment of the utility model provides a have following advantage: through the liquid level monitoring who is applied to the pump house with liquid level relay, utilize the electric conductivity of water and amplify the processing through its internal circuit with input current signal based on liquid level relay's principle, produce the action after touching the liquid level by the liquid level probe earlier, and transmit the monitoring signal of liquid level for liquid level relay, amplify the current signal of input by liquid level relay again, thereby monitor the liquid level, when practicing thrift the cost, more because its microampere level's current input, accomplish the complete electrical isolation of monitoring return circuit and control circuit, even so the pump house takes place to fill up water and also can guarantee maintenance personal's life safety. Meanwhile, the intermediate relay is arranged, monitoring signals of the liquid level relay are converted into alarm signals to be transmitted to the PLC module, the alarm signals are transmitted to the central control upper computer, all-weather monitoring is conducted on the liquid level of the underground pump room, when an overflow event occurs, the central control upper computer controls the existing alarm prompting instrument, the central control operating personnel is rapidly notified in alarm modes such as sound or screen display, the time for reacting and processing faults is strived for to the maximum degree, and the loss is reduced to the minimum.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic circuit diagram of an overflow alarm device for an underground pump room according to an embodiment of the present invention.
In the figure: 1. a water level monitoring unit; 11. a liquid level relay; 12. a liquid level probe; 2. an alarm output unit; 21. an intermediate relay; 22. and a PLC module.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, the embodiment of the utility model provides an overflow alarm device of underground pump house, including water level monitoring unit 1 and warning output unit 2, specifically set up as follows:
the water level monitoring unit 1 includes a liquid level relay 11 and a liquid level probe 12, wherein the liquid level relay 11 operates on the principle of amplifying an input current signal by using the conductivity of water and through its internal circuit, and thus includes an amplifying circuit for amplifying the input current signal. The liquid level probe 12 is vertically fixed on the wall body of the underground pump room through a fixing support, the top of the liquid level probe is a liquid level high-level end, the bottom of the liquid level probe is a liquid level low-level end, the fixing support for fixing the liquid level probe 12 is made of engineering plastics, and the height of the liquid level probe 12 is a preset alarm water level height. The signal output end of the liquid level probe 12 is electrically connected with the signal input end of the liquid level relay 11, the liquid level probe 12 touches the liquid level to generate action, a monitoring signal of the liquid level is transmitted to the liquid level relay 11, and the input current signal is amplified by the liquid level relay 11, so that the liquid level is monitored. Preferably, water level monitoring unit 1 is still including being annular ground connection band steel, and the ground connection band steel level is fixed subaerial to wall body distribution along the underground pump room fixes the low level end of liquid level probe 12 on the ground connection band steel, utilizes annular ground connection band steel to introduce, makes the ground of whole pump room become a route, thereby makes water level monitoring unit 1 can accomplish to monitor the water level of whole underground pump room, ensures not to have the dead angle.
The alarm output unit 2 comprises an intermediate relay 21 and a PLC module 22, when the water level monitoring unit 1 monitors that the liquid level is abnormal, the liquid level relay 11 will output one path of normally open contact, the normally open contact output by the liquid level relay 11 is connected with the coil of the intermediate relay 21, a pair of normally open contacts are led out from the intermediate relay 21 and connected with the PLC module 22, the monitoring signal of the liquid level relay 11 is converted into an alarm signal by the arrangement of the intermediate relay 21 and transmitted to the PLC module 22, further transmits the alarm signal to a central control upper computer, thereby carrying out all-weather monitoring on the liquid level of the underground pump room, when an overflow event occurs, the central control upper computer controls the existing alarm prompting instrument to quickly inform the central control operating personnel in alarm modes such as sound or screen display and the like, so that the time for reacting and processing faults is strived for to the maximum extent, and the loss is reduced to the minimum.
The embodiment of the utility model provides a through the liquid level monitoring who is applied to the pump house with liquid level relay 11, utilize the electric conductivity of water and amplify the processing with the input current signal through its internal circuit based on the principle of liquid level relay 11 to monitor the liquid level, when practicing thrift the cost, more because its microampere level's current input, accomplish monitoring circuit and control circuit's complete electrical isolation, even like this the pump house takes place the life safety that the full water also can guarantee the maintenance personal. Meanwhile, the ground flat steel is introduced, so that the ground of the whole pump room becomes a passage, and no dead angle for liquid level monitoring is really realized.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (5)
1. An underground pump house overflow alarm device, characterized in that, the underground pump house overflow alarm device includes:
the water level monitoring device comprises a water level monitoring unit (1), wherein the water level monitoring unit (1) comprises a liquid level relay (11) and a liquid level probe (12), and the signal output end of the liquid level probe (12) is electrically connected with the signal input end of the liquid level relay (11);
alarm output unit (2), alarm output unit (2) include auxiliary relay (21) and PLC module (22), get the coil that a pair of normally open contact of liquid level relay (11) output way inserts auxiliary relay (21) to draw forth a pair of normally open contact from auxiliary relay (21) and insert PLC module (22), PLC module (22) are used for receiving the alarm signal of auxiliary relay (21), and give the central control host computer alarm signal transmission.
2. An underground pump room overflow alarm device according to claim 1, wherein: the liquid level relay (11) comprises an amplifying circuit which is used for amplifying the input current signal.
3. An underground pump room overflow alarm device according to claim 1, wherein: the liquid level probe (12) is vertically fixed on the wall body of the underground pump room, the top of the liquid level probe is a liquid level high-level end, the bottom of the liquid level probe is a liquid level low-level end, and the height of the liquid level probe (12) is a preset alarm water level height.
4. An underground pump room overflow alarm device according to claim 3, characterized in that: the liquid level probe (12) is fixed on a wall body, and the fixing support is made of engineering plastics.
5. An underground pump room overflow alarm device according to claim 1, wherein: the water level monitoring unit (1) further comprises an annular grounding flat steel, the grounding flat steel is horizontally fixed on the ground and distributed along the wall of the underground pump room, and the low end of the liquid level probe (12) is fixed on the grounding flat steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020585921.XU CN211824603U (en) | 2020-04-17 | 2020-04-17 | Overflow alarm device for underground pump house |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020585921.XU CN211824603U (en) | 2020-04-17 | 2020-04-17 | Overflow alarm device for underground pump house |
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| Publication Number | Publication Date |
|---|---|
| CN211824603U true CN211824603U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020585921.XU Expired - Fee Related CN211824603U (en) | 2020-04-17 | 2020-04-17 | Overflow alarm device for underground pump house |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577564A (en) * | 2020-12-03 | 2021-03-30 | 淮安特创科技有限公司 | Liquid medicine leakage alarm monitoring method and device |
-
2020
- 2020-04-17 CN CN202020585921.XU patent/CN211824603U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577564A (en) * | 2020-12-03 | 2021-03-30 | 淮安特创科技有限公司 | Liquid medicine leakage alarm monitoring method and device |
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Granted publication date: 20201030 |
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| CF01 | Termination of patent right due to non-payment of annual fee |