CN2844877Y

CN2844877Y - Three-core style liquid leakage positioning system with breaking point location function

Info

Publication number: CN2844877Y
Application number: CN 200520046410
Authority: CN
Inventors: 陈玮
Original assignee: Shanghai Hua Hong NEC Electronics Co Ltd
Current assignee: Shanghai Huahong Grace Semiconductor Manufacturing Corp
Priority date: 2005-11-10
Filing date: 2005-11-10
Publication date: 2006-12-06
Anticipated expiration: 2015-11-10

Abstract

The utility model discloses a three-core type liquid leakage locating system capable of checking broken points. A duplex switch is connected in series to a detecting line of the locating system at equal intervals, so that the utility model has the functions of manually checking broken points and has the advantage of convenient replacement and repair. Simultaneously, the utility model keeps the original functions of a common three-core type liquid leakage locating system.

Description

A kind of three-hole leak of liquid positioning system that can look into function with breakpoint

Technical field

The utility model relates to a kind of leak of liquid positioning system, a kind of three-hole leak of liquid positioning system that can look into function with breakpoint.

Background technology

Present common on the market three-hole leak of liquid positioning system is by detecting line and controller is formed, its wiring diagram and sectional view such as Fig. 1.

As shown in Figure 1, the electrode 3 that detects line connects the positive voltage of controller, and electrode 2 is sent working signal back to controller.Detect line outsourcing water absorptivity braided wire cover, mutually insulated between each electrode when dry; As liquid, can detect line by the sheath infiltration, form the short circuit of electrode 1 and electrode 3.Under the normal condition, the electrode 3 that detects line connects the positive voltage of controller, and the conducting endways of impedance line and insulated wire is sent the operate as normal signal from electrode 2 back to controller.When leak of liquid took place, electrode 1 and electrode 3 were short-circuited at leak of liquid point place, and electrode 3 is sent alerting signal back to controller, and controller is judged thus and detected line and occur the leak of liquid phenomenon along the line.Simultaneously, along with short dot (being leakage point) difference, the impedance difference of short-circuit loop, so the size of current difference of alerting signal, controller can calculate and show the position (to the distance at top) of short dot in view of the above.

Detect the general laying of line on the ground, its length is generally about 200 meters.But in actual use,, can cause after long-time and detect the fracture of line internal core because the carrying of personnel's walking, goods etc. often trample or roll detecting line.Three-hole leaks and detects in the line, the diameter minimum of impedance line, meet with excess pressure after, impedance line can at first rupture (but detecting can not changing in appearance of line).As the impedance line fracture, then the electric path of electrode 3 and electrode 2 has not existed, and electrode 2 does not have the operate as normal signal to send back to, and controller can be judged in view of the above and detect the line internal break, sends break alarm, but controller can't be informed the particular location that detects thread breakage.

The utility model content

The technical problems to be solved in the utility model provides a kind of three-hole leak of liquid positioning system, has the breakpoint of searching function.

For solving the problems of the technologies described above, the utility model comprises controller and detects line by what signal wire, insulated wire, impedance line, plastic knitting line cover were formed, this detects line every one section equidistance ganged switch of connecting between signal wire, impedance line, this ganged switch is common small-sized ganged switch.

The utility model is owing to detecting on the line every one section equidistance ganged switch of having connected, the position that can find broken string quickly and easily; Simultaneously since detect between line spaced apart regularly with switch, needs change certain section impaired when detecting line, two ends can adopt common being electrically connected to fix or extract, and are convenient and safe.

Description of drawings

Fig. 1 is the wiring diagram and the sectional view of present three-hole leak of liquid positioning system;

Fig. 2 is the wiring diagram and the sectional view of the utility model three-hole leak of liquid positioning system.

Embodiment

Below in conjunction with drawings and the specific embodiments the utility model is described in further detail.

As shown in Figure 2, be the wiring diagram and the sectional view of the utility model three-hole leak of liquid positioning system.The utility model is compared with present three-hole leak of liquid positioning system (Fig. 1), keeping original function simultaneously, be characterized in that the line that detects of the present utility model is every ganged switch of one section equidistance series connection, after detecting the alarm of line appearance broken string, can adopt dichotomy method, find the position of broken string quickly and easily; Simultaneously since detect between line spaced apart regularly with switch, needs change certain section impaired when detecting line, two ends can adopt common being electrically connected to fix or extract, and are convenient and safe.As shown in Figure 2, its principle of work is as follows:

Under the general state, 0,1 conducting of two switches, leaking detects the line operate as normal.

When detecting the line breakpoint in the controller when reporting to the police, can manually the ganged switch that detects on the line be switched to 0,2 conductings, at ganged switch with detect between the line top, surveillance still shows break alarm as breakpoint; At ganged switch with detect between the line end, surveillance will show water leakage alarm (break alarm recovers simultaneously), use dichotomy method like this, just can find faulted line segment apace as breakpoint.With this principle, utilize and detecting the ganged switch that is provided with on the line every one section equidistance, make it have the function that breakpoint manually can be looked into and convenient replacement is repaired

In a specific embodiment of the present utility model: at first determine the suitable interval distance, choose the ganged switch layout points and (decide on on-site actual situations detecting on the line of leak of liquid positioning system, present embodiment is got about ten meters at interval, and switch is difficult for by the place of colliding, trampleing on); Disconnection is leaked and is detected line, adds ganged switch by shown in the wiring diagram, and is fastenedly connected; After confirming switch chopper correct position, ganged switch is fixed on ground or corner.

The material that the utility model uses all is common material, comprises the controller of common small-sized ganged switch, three-hole leak of liquid positioning system and detects line by what signal wire, insulated wire, impedance line, plastic knitting line cover were formed.

In sum, the utility model is a kind ofly can look into the three-hole leak of liquid positioning system of function with breakpoint, by detecting on the line every one section equidistance ganged switch of having connected, can detect after the broken string alarm appears in line, adopt dichotomy method, the position of finding broken string quickly and easily; Simultaneously since detect between line spaced apart regularly with switch, needs change certain section impaired when detecting line, two ends can adopt common being electrically connected to fix or extract, and are convenient and safe.The utility model also has the function that breakpoint manually can be looked into and convenient replacement is repaired in the original function that has kept common three core leak of liquid positioning systems.

Claims

1, a kind of three-hole leak of liquid positioning system that can look into function with breakpoint, comprise controller and detect line by what signal wire, insulated wire, impedance line, plastic knitting line cover were formed, it is characterized in that this detects line every one section equidistance ganged switch of connecting between signal wire, impedance line.

2, the band breakpoint according to claim 1 three-hole leak of liquid positioning system that can look into function is characterized in that described is every ten meters every one section equidistance, and described ganged switch is common small-sized ganged switch.