CN200971520Y - Auto-stop device when water pressure out-of control - Google Patents
Auto-stop device when water pressure out-of control Download PDFInfo
- Publication number
- CN200971520Y CN200971520Y CN 200620130505 CN200620130505U CN200971520Y CN 200971520 Y CN200971520 Y CN 200971520Y CN 200620130505 CN200620130505 CN 200620130505 CN 200620130505 U CN200620130505 U CN 200620130505U CN 200971520 Y CN200971520 Y CN 200971520Y
- Authority
- CN
- China
- Prior art keywords
- power supply
- pressure gauge
- parallel
- control
- electric contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses a device which will shut down automatically once hydraulic pressure is out of control. The device comprises a pressure gauge which is connected with the signal wire of a digital frequency conversing controller, one block of electric contact pressure gauge is arranged in a compound way on the pressure gauge; one electric contact of the electric contact pressure gauge is connected with an one phase power supply and the other electric contact is connected with connected with a relay coil in a parallel first and then with a zero phase power supply. One end of a starting contactor coil of a water pump is connected with an one phase power supply and the other end is connected with another one phase power supply through a starting button and a stop button which are connected in a parallel way, and the two ends of the starting button is connected with a protective circuit in a parallel way. The protective circuit has switches, a parallel loop which consists of switch and a relay normally closed contact which are in a parallel connection with the switches, as well as a starting contactor normally open contact which is in serial connection with the parallel loop. The utility model has the advantage that when the pressure gauge with transmitter suffers from a failure and further leads to an out of control of the digital frequency conversing controller, the device will shut down automatically once the hydraulic pressure of a water supply pipeline is out of control.
Description
Technical field
The utility model relates to variable frequency control infinitely variable speeds constant voltage supply equipment, and it is out of control from arresting gear especially to relate to hydraulic pressure.
Background technology
Variable frequency control infinitely variable speeds constant voltage supply equipment generally is used in occasions such as industrial and mining enterprises, hospital, highrise building.Because it does not need to build water containers such as water tower, pond, therefore be welcomed by users.But the teletransmission pressure meter holding wire that in use usually takes place to be connected with the digital frequency conversion controller phenomenon that is out of order is as the water inlet of teletransmission pressure meter, damage, broken string etc.Make that the digital frequency conversion controller is out of control and cause water pump to run up, cause water pipe pressure to increase and damage watering equipment, pipeline burst, cause enormous economic loss to the user.
The utility model content
The utility model purpose is to provide a kind of hydraulic pressure that is used for variable frequency control infinitely variable speeds constant voltage supply equipment out of control from arresting gear.
For achieving the above object, the utility model can be taked following technical proposals:
Hydraulic pressure described in the utility model is out of control from arresting gear, and it comprises the teletransmission pressure meter that is connected in digital frequency conversion controller holding wire, is compounded with an electro connecting pressure gauge on described teletransmission pressure meter; Electric contact of described electro connecting pressure gauge with one mutually power supply connect, another electric contact and relay coil series connection be connecting to neutral power supply mutually afterwards; Starting contactor coil one end of water pump and one power supply connection mutually, the other end is by starting button, stop button and another power supply connection mutually of series connection; Be parallel with a holding circuit at the two ends of described starting button; Described holding circuit is by switch and the shunt circuit of being made up of switch, relay constant close contact that is in parallel with it, and constitutes with starting contactor constant open contact that described shunt circuit is in series.
The utility model advantage is to break down and cause the digital frequency conversion controller out of control when the teletransmission pressure meter; running up when causing water pipe pressure to increase to the electro connecting pressure gauge setting value (setting value is a bit larger tham the normal water supply force value) of water pump; two of electro connecting pressure gauge are electrical contacts closed; this moment, relay coil got; its constant close contact disconnects the starting contactor coil blackout with water pump; water pump quits work, thereby realizes that water supply line hydraulic pressure is out of control from shutting down purpose.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
The specific embodiment
As shown in the figure, hydraulic pressure described in the utility model is out of control from arresting gear, and it comprises the teletransmission pressure meter 2 that is connected in digital frequency conversion controller 1 holding wire, is compounded with an electro connecting pressure gauge 3 on described teletransmission pressure meter 2; Electric contact of described electro connecting pressure gauge 3 with one mutually power supply connect, another electric contact and the series connection of relay ZJ coil be connecting to neutral power supply mutually afterwards; Starting contactor C coil one end of water pump 4 and one power supply connection mutually, the other end is by starting button k4, stop button k3 and another power supply connection mutually of series connection; Be parallel with a holding circuit at the two ends of described starting button k4; The shunt circuit that described holding circuit is made up of switch k1 and the switch k2 that is in parallel with it, relay ZJ constant close contact j1, and the starting contactor C constant open contact C1 that is in series with described shunt circuit constitutes.
The utility model operating principle is as follows:
During operate as normal, k1 closes down with switch, presses starting button k4, this moment water pump 4 starting contactor C coil by stop button k3, starting button k4, electric, and often open electric shock C1 self-locking, pump working by switch k1, starting contactor C; After the float period that hydraulic pressure reaches setting enters stable state, the k2 that closes a switch, cut-off switch k1 gets final product simultaneously.When teletransmission pressure meter 2 breaks down and causes digital frequency conversion controller 1 out of control, running up when causing water pipe pressure to increase to electro connecting pressure gauge 3 setting values (setting value is a bit larger tham the normal water supply force value) of water pump 4, two of electro connecting pressure gauge 3 are electrical contacts closed, this moment, relay ZJ coil got, its constant close contact j1 disconnects the starting contactor coil C outage with water pump 4, and water pump 4 quits work.
Claims (1)
1, a kind of hydraulic pressure is out of control from arresting gear, and it comprises the teletransmission pressure meter (2) that is connected in digital frequency conversion controller (1) holding wire, it is characterized in that: be compounded with an electro connecting pressure gauge (3) on described teletransmission pressure meter (2); Electric contact of described electro connecting pressure gauge (3) with one mutually power supply connect, another electric contact and the series connection of relay (ZJ) coil be connecting to neutral power supply mutually afterwards; Starting contactor (C) coil one end of water pump (4) and one power supply connection mutually, the other end is by starting button (k4), stop button (k3) and another power supply connection mutually of series connection; Be parallel with a holding circuit at the two ends of described starting button (k4); The shunt circuit that described holding circuit is made up of switch (k1) and the switch (k2) that is in parallel with it, relay (ZJ) constant close contact (j1), and starting contactor (C) constant open contact (C1) that is in series with described shunt circuit constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620130505 CN200971520Y (en) | 2006-11-21 | 2006-11-21 | Auto-stop device when water pressure out-of control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620130505 CN200971520Y (en) | 2006-11-21 | 2006-11-21 | Auto-stop device when water pressure out-of control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200971520Y true CN200971520Y (en) | 2007-11-07 |
Family
ID=38882776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620130505 Expired - Fee Related CN200971520Y (en) | 2006-11-21 | 2006-11-21 | Auto-stop device when water pressure out-of control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200971520Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628523A (en) * | 2008-01-24 | 2014-03-12 | 株式会社荏原制作所 | Water supply |
-
2006
- 2006-11-21 CN CN 200620130505 patent/CN200971520Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628523A (en) * | 2008-01-24 | 2014-03-12 | 株式会社荏原制作所 | Water supply |
| CN101925706B (en) * | 2008-01-24 | 2014-04-09 | 株式会社荏原制作所 | Water supply |
| CN103628523B (en) * | 2008-01-24 | 2015-07-01 | 株式会社荏原制作所 | Water supply |
| CN103590452B (en) * | 2008-01-24 | 2015-07-22 | 株式会社荏原制作所 | Water supply apparatus |
| US9206590B2 (en) | 2008-01-24 | 2015-12-08 | Ebara Corporation | Water supply apparatus |
| US9249562B2 (en) | 2008-01-24 | 2016-02-02 | Ebara Corporation | Water supply apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |