CN205134434U - Reliable frequency constant -voltage water supply system - Google Patents
Reliable frequency constant -voltage water supply system Download PDFInfo
- Publication number
- CN205134434U CN205134434U CN201520999864.9U CN201520999864U CN205134434U CN 205134434 U CN205134434 U CN 205134434U CN 201520999864 U CN201520999864 U CN 201520999864U CN 205134434 U CN205134434 U CN 205134434U
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- water supply
- supply system
- pressure
- manometer
- pressure meter
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Abstract
The utility model relates to a reliable frequency constant -voltage water supply system, including controlling means, be equipped with with pressure water pump, first manometer and second manometer at this water supply system's outlet conduit facial make -up, this first manometer and second manometer are connected in the controlling means sampling, and controlling means control connection adds the converter that pressure water pump corresponds, and the second manometer is for preventing the superpressure manometer. Use two manometers, these two manometers are redundant to be set up, and when one of them manometer broke down, another manometer delivery pressure value had prevented only problem that the reliability is low that the manometer brought, and moreover, when one of them manometer damaged, another manometer was normally worked, also closed down whole water supply system with regard to having avoided changing the manometer because of need, had further ensured water supply system's reliability.
Description
Technical field
The utility model relates to a kind of reliable constant pressure water supply system.
Background technology
At present, constant pressure water supply system is widely used in water system, and most water system all requires to adopt constant pressure water supply system.When constant pressure water supply system refers to that water supply volume changes in water supply network, the way of supplying water that outlet pressure remains unchanged.The exit pressure levels of water supply network is determined according to user's request.Constant pressure water supply system carries out stepless speed regulation to pump motor, and foundation water supply volume and variation in water pressure are detected by microcomputer, computing, automatically changes pump rotary speed and keeps water pressure invariableness to use water requirement with satisfied.
A conventional pressure meter is only set in the water side of water supply network in current constant pressure water supply system, then the force value detected is sent in frequency-changing control system.If application number is the Chinese patent application of 201410585410, it discloses a kind of constant pressure water supply system, it is only provided with a pressure meter in water side, and controller receives this manometric pressure information, then carries out correspondingly variable frequency control.But the demand due to the water supply of user is difference according to the period and different changes occurs, such as: when at noon or at dusk, user is owing to needing cook and then need a large amount of water supply; At night, user is mostly in rest, and the demand of water supply just becomes very little, so, by the change that the demand of the water supply in water system and user side supplies water, the hydraulic pressure in outlet conduit is that certain change can occur, and, when user side generation emergency case, just may cause very large impact to the hydraulic pressure in outlet conduit, if exceeded, this is manometric, during detection range, at this moment this pressure meter just possibly accurately cannot detect hydraulic pressure, and then just accurately cannot control constant voltage; And if pressure meter receives larger impact and damages, this constant pressure water supply system just cannot work on, and cannot guarantee effectively to supply water to all users.
Utility model content
The purpose of this utility model is to provide a kind of reliable constant pressure water supply system, in order to solve the lower problem of traditional constant pressure water supply system reliability.
For achieving the above object, scheme of the present utility model comprises a kind of reliable constant pressure water supply system, comprise control device and constant pressure water supply pipeline, the outlet conduit of this constant pressure water supply pipeline is equiped with pressure pump and the first pressure meter, the frequency converter that described in control device control connection, pressure pump is corresponding, control device sampling connects this first pressure meter, described water system also comprises the second pressure meter, described second pressure meter is installed on described outlet conduit, described control device sampling connects described second pressure meter, described second pressure meter is superpressure preventing pressure meter.
Described control device comprises controller and touch-screen, and described controller is connected with this touch-screen communication, and described controller sampling connects described first pressure meter and the second pressure meter, frequency converter described in control connection.
Described controller be Siemens LOGO! 12/24RC0BA8 programmable logic controller, described touch-screen is that polyvinyl leads to TK8070iH touch-screen.
The supply line of described pressure pump is provided with ammeter and voltmeter, and described controller sampling connects described ammeter and voltmeter.
Described control device also comprises a warning device, warning device described in described controller control connection.
Described first pressure meter is connected with described control device by signal shielding line with the second pressure meter.
Described control device also comprises a radio transmitting device, and described controller communication connects this radio transmitting device.
Described outlet conduit is also equiped with one for detecting the cooling-water temperature sensor of supply water temperature, described controller sampling connects described cooling-water temperature sensor.
Described water system also comprises a temperature pick up for testing environment temperature, and described controller sampling connects described temperature pick up.
Described first pressure meter and the second manometric exterior circumferential are provided with a stay-warm case, this stay-warm case have a transparent part for being transmitted by pressure dial plate.
The outlet conduit of this water system is provided with two pressure meters, and first, pressure meter not only can show pressure of supply water in real time, and, also force value can be transferred to control device, for variable frequency control; And one of them pressure meter is superpressure preventing pressure meter, it can play the effect of superpressure preventing when pressure meter full scale, the effect of a protection not only can be played to pressure meter, and, accurately can also detect the force value of water supply, ensure that effective control of frequency-changing pressure stabilizing; In addition, use two pressure meters, these two pressure meter redundancies are arranged, when a pressure meter breaks down wherein, and another pressure meter output pressure value, prevent the problem that the reliability of only having a pressure meter to bring is low, and when a pressure meter damages wherein, another pressure meter normally works, also just avoid and close down whole water system because need pressure meter be changed, ensured the reliability of water system further.
Accompanying drawing explanation
Fig. 1 is constant pressure water supply overall system architecture schematic diagram;
Fig. 2 is the inner connection layout of control device;
Fig. 3 is the control circuit figure of water pump;
Fig. 4 is the schematic appearance of display floater.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in more detail.
Inventive point of the present utility model is: on the outlet conduit of water system, be provided with two pressure meters and its control device simultaneously, and for other parts of water system, relevant portion of the prior art can be used, such as: the application number in background technology is the relevant portion in constant pressure water supply system disclosed in the Chinese patent application of 201410585410, also can adopt other structure, present embodiments provide a kind of concrete structure.
As shown in Figure 1, this water system mainly comprises into water pipe network 1, inlet gage 2, pressure pump 4 and attached valve (3,5,6) and pipeline, distance-transmission pressure gauge 7, superpressure preventing pressure meter 8, water outlet user pipeline 9, frequency-conversion control cabinet 10, wherein, distance-transmission pressure gauge 7 and superpressure preventing pressure meter 8 are arranged on outlet conduit, for detecting pressure of supply water.Frequency-conversion control cabinet 10 is sampled and is connected inlet gage 2, distance-transmission pressure gauge 7 and superpressure preventing pressure meter 8, control connection pressure pump 4.About inlet gage 2, it is not inventive point of the present utility model, is not described in detail at this.
Switch board 10 gathers the discharge pressure that distance-transmission pressure gauge 7 and superpressure preventing pressure meter 8 detect simultaneously, these two pressure meter redundancies are arranged, when carrying out variable frequency control according to pressure, only can use one of them manometric numerical value, also can use the basis of average as variable frequency control of the numerical value of these two pressure meters detections.
As shown in Figure 2, frequency-conversion control cabinet 10 comprises controller and touch-screen, and wherein, controller is PLC, concrete model be Siemens LOGO! 12/24RC0BA8 programmable logic controller, touch-screen is that polyvinyl leads to TK8070iH touch-screen.Controller is connected with this touch-screen Direct Communication, and controller sampling connects inlet gage 2, distance-transmission pressure gauge 7 and superpressure preventing pressure meter 8, the frequency converter of control connection pressure pump 4.
As the LOGO of simple type programmable logic controller, be widely applied in the simple field such as industrial, civilian, new edition LOGO! V8 is powerful especially, and possesses ethernet communication function.
In order to prevent external disturbance electromagnetic signal from disturbing the force value that distance-transmission pressure gauge 7 and superpressure preventing pressure meter 8 transmit, distance-transmission pressure gauge 7 is connected with controller by signal shielding line with superpressure preventing pressure meter 8.Distance-transmission pressure gauge 7 is connected with LOGO by shielding line with the pressure feedback signal of superpressure preventing pressure meter 8, and adopt LOGO! Inside PI functional block to after pressure feedback signal process, export to inverter input signal end, realize controlling the frequency-variable closed constant pressure water supply of pressure pump.
In addition, in the present embodiment, in order to monitor in real time pressure pump 4, as shown in Figure 3, the supply line of pressure pump 4 is provided with ammeter and voltmeter, controller sampling connects ammeter and voltmeter.The voltage and current information of controller Real-time Obtaining water pump, water pump is monitored, in order to effective warning, a warning device is provided with in this switch board, controller control connection warning device, when abnormal conditions appear in voltage and/or electric current, controller controls warning device and reports to the police, such as: sound and light alarm or buzzing are reported to the police.
In the present embodiment, in order to detect the temperature of the water supply in waterpipe in real time, outlet conduit can also arrange a cooling-water temperature sensor, controller sampling connects this cooling-water temperature sensor, can Real-time Obtaining supply water temperature.
In the present embodiment, in order to can the environment temperature of Real-time Obtaining water system, this water system can also comprise temperature pick up, and controller sampling connects this temperature pick up.Controller Real-time Obtaining environment temperature, when environment temperature is too low, the hydraulic pressure that pressure meter detects will increase certain error, at this moment a stay-warm case is provided with regard to needing in the exterior circumferential of distance-transmission pressure gauge 7 and superpressure preventing pressure meter 8, such as: the stay-warm case made with heat insulating material, each stay-warm case can prevent the too low impact caused it of ambient temperature in being wrapped in by a pressure meter to a certain extent.In addition, in order to enable outworker observe stay-warm case has force value on pressure dial plate transparent part, is transmitted by pressure dial plate by this transparent part.
Touch-screen is arranged on the display floater on switch board, in addition, this display floater also has the display panel of voltmeter and ammeter and other several indicator lamps etc., as shown in Figure 4.
In the present embodiment, in order to the status signal transmission of the various information that collected by controller and acquisition is to Surveillance center, a radio transmitting device can also be set in this switch board, controller communication connects this radio transmitting device, by this radio transmitting device, various information is carried out wireless uploading.
Be presented above concrete embodiment, but the utility model is not limited to described embodiment.Basic ideas of the present utility model are above-mentioned basic scheme, and for those of ordinary skill in the art, according to instruction of the present utility model, designing the model of various distortion, formula, parameter does not need to spend creative work.The change carried out embodiment when not departing from principle of the present utility model and spirit, amendment, replacement and modification still fall in protection domain of the present utility model.
Claims (10)
1. a reliable constant pressure water supply system, comprise control device and constant pressure water supply pipeline, the outlet conduit of this constant pressure water supply pipeline is equiped with pressure pump and the first pressure meter, the frequency converter that described in control device control connection, pressure pump is corresponding, control device sampling connects this first pressure meter, it is characterized in that, described water system also comprises the second pressure meter, described second pressure meter is installed on described outlet conduit, described control device sampling connects described second pressure meter, and described second pressure meter is superpressure preventing pressure meter.
2. reliable constant pressure water supply system according to claim 1, it is characterized in that, described control device comprises controller and touch-screen, and described controller is connected with this touch-screen communication, described controller sampling connects described first pressure meter and the second pressure meter, frequency converter described in control connection.
3. reliable constant pressure water supply system according to claim 2, is characterized in that, described controller be Siemens LOGO! 12/24RC0BA8 programmable logic controller, described touch-screen is that polyvinyl leads to TK8070iH touch-screen.
4. reliable constant pressure water supply system according to claim 2, is characterized in that, the supply line of described pressure pump is provided with ammeter and voltmeter, and described controller sampling connects described ammeter and voltmeter.
5. reliable constant pressure water supply system according to claim 2, is characterized in that, described control device also comprises a warning device, warning device described in described controller control connection.
6. reliable constant pressure water supply system according to claim 1, is characterized in that, described first pressure meter is connected with described control device by signal shielding line with the second pressure meter.
7. reliable constant pressure water supply system according to claim 2, is characterized in that, described control device also comprises a radio transmitting device, and described controller communication connects this radio transmitting device.
8. reliable constant pressure water supply system according to claim 2, is characterized in that, described outlet conduit is also equiped with one for detecting the cooling-water temperature sensor of supply water temperature, and described controller sampling connects described cooling-water temperature sensor.
9. reliable constant pressure water supply system according to claim 2, is characterized in that, described water system also comprises a temperature pick up for testing environment temperature, and described controller sampling connects described temperature pick up.
10. the reliable constant pressure water supply system according to claim 2 or 9, it is characterized in that, described first pressure meter and the second manometric exterior circumferential are provided with a stay-warm case, this stay-warm case have a transparent part for being transmitted by pressure dial plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520999864.9U CN205134434U (en) | 2015-12-03 | 2015-12-03 | Reliable frequency constant -voltage water supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520999864.9U CN205134434U (en) | 2015-12-03 | 2015-12-03 | Reliable frequency constant -voltage water supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205134434U true CN205134434U (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520999864.9U Expired - Fee Related CN205134434U (en) | 2015-12-03 | 2015-12-03 | Reliable frequency constant -voltage water supply system |
Country Status (1)
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| CN (1) | CN205134434U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643283A (en) * | 2018-05-09 | 2018-10-12 | 合肥亿福自动化科技有限公司 | A kind of redundancy water pump equilibrium not shutdown system |
-
2015
- 2015-12-03 CN CN201520999864.9U patent/CN205134434U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643283A (en) * | 2018-05-09 | 2018-10-12 | 合肥亿福自动化科技有限公司 | A kind of redundancy water pump equilibrium not shutdown system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20161203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |