CN2062073U

CN2062073U - Liquid lever automatic controlling and alarming device

Info

Publication number: CN2062073U
Application number: CN 90201083
Authority: CN
Inventors: 陈建平
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-01-18
Filing date: 1990-01-18
Publication date: 1990-09-12

Abstract

The utility model relates to a liquid level automatic controlling and alarming device. The floating ball type and the electrode type water level controllers used at present has the disadvantages of bad reliability, high fabrication cost, etc. The utility model provides a liquid level automatic controlling and alarming device which has the advantages of simple manufacture, low cost, convenient installation, reliable use and extensive use. The utility model is suitable for use in various automatic level control and alarm situations, such as the water tower, the high-position water tank, the water storage tank, the reservoir in the water plant, the oil pressing factory, the starch factory, the vermicelli factory, the chemical plant, etc.

Description

Liquid lever automatic controlling and alarming device

The utility model relates to a kind of automatic control of liquid and warning device that is used for liquid level control and reports to the police.

The controller that generally is used at present liquid level control has two kinds substantially, a kind of is float-ball type, another kind is an electric pole type, float-type liquid level controller is mainly by ball float, nylon rope, pulley, balancing weight, support, spacing shelves, connecting rod and travel switch are formed, be along with liquid level is controlled in the lifting of liquid level by ball float, its main weak point is to use middle poor reliability, install cumbersome, structure is complicated, volume is heavy, the electric pole type fluid level controller is mainly by transformer, relay, auxiliary reclay, adjustable resistor, transistor amplifier and mu balanced circuit are formed, its weak point is the structure more complicated, the manufacturing cost height, and only be applicable to the control of conducting liquid.

The purpose of this utility model be to provide a kind of simple in structure, easily manufactured, cost is low, can be applicable to automatic control of liquid and warning device that various liquid can both be realized automatic control of liquid in all cases and can cut off the electricity supply automatically when equipment breaks down or influenced by other factors and automatically report to the police again.

Structure of the present utility model and principle are as shown in Figure 1 and Figure 2, its structure is by liquid case E and places the inner face that can control two position in it that box A, the B of liquid are housed that box A, B link with nylon rope 7 series connection and with slide bar 8, and moving contact K is housed on slide bar 8 ₁, K ₂, its slide bar 8 is contained on the switch frame 6, stop pin 9 is housed on switch frame 6 and be equipped with can adjusting position garden shape

static contact

2,3,11, place in addition and when motor D or liquid pump Z break down, can control the box C that realization is cut off the electricity supply automatically and reported to the police in it ₁Box C ₁With nylon rope 7 and the lever K that auxiliary moving contact is housed ₃Link to each other lever K ₃Be contained on the support 17, support 17 is contained on the switch frame 6 and uses extension spring 18 and lever K ₃An end link to each other and to make its auxiliary moving contact lever K ₃With auxiliary static contact 5 normally closed and cover control circuit compositions correspondingly, its main control circuit is by K ₁, K ₂, contactor coil C, electrothermal relay RJ, timing relay SJ form, its auxiliary circuit is by K ₃, timing relay SJ, electric bell F form, two circuit constitute the running of control motor D and liquid pump Z or stop and motor D and liquid pump Z realize the circuit of cutting off the electricity supply automatically and reporting to the police automatically when breaking down thus.

Its principle of work is: the weight of utilizing liquid that box is adorned, overcome the elastic force of spring, make switch closed or disconnection with circuit, when utilizing box all to immerse in the liquid, making spring stress under the effect of liquid buoyancy is that zero switch resets and circuit disconnected or closedly realizes the running of motor and liquid pump or stop.

As shown in Figure 1 and Figure 2: install and box A, B injected liquid (weight that liquid weight adds box can overcome the elastic force of

spring

12,10 respectively) sealing again by the circuit of Fig. 1, the HK that closes, this moment K ₁, K ₂Action is with the circuit closure under the effect of the gravity of box A, B, and coil C, SJ obtain electricity, the closed self-locking of contactor, and motor D drives liquid pump Z running, timing relay SJ on-delay, when liquid drew up the liquid case, what liquid did not stop had the box C of aperture 19 to the bottom ₁Inject K switch ₃At box C ₁The effect of the gravity of the liquid of adorning down action disconnects the SJ dead electricity with circuit, and timing relay stops time-delay, when liquid level rises to the whole submergence of box B, is subjected to buoyancy function, and box B is zero to the acting force of spring 12, is contained in K on the slide bar 8 with the stationary fit mode ₂Because of slide bar 8 is sliding under the effect of the elastic force of spring 12 circuit is disconnected, when liquid level rises to the whole submergence of box A, because of buoyancy function box A to K ₁Acting force be zero, K ₁On under the effect of spring 10 elastic force, slide work with the circuit disconnection, the action of coil C dead electricity contactor, the motor stall of cutting off the electricity supply, drawing liquid stops, at this moment box C ₁No longer include liquid and inject, because of at box C ₁The bottom have aperture 19 liquid leaked box C ₁To K ₃Acting force be zero, K ₃Closed under the effect of extension spring 18, when liquid level drops to box A K when following ₁Closed under the effect of the gravity of zygote A, when liquid level drops to box B when following, K ₂Close box under the effect of the gravity of box B, coil C, SJ obtain electricity, and the closed motor D of contactor self-locking drives liquid pump Z running drawing liquid, the realization automatic control of liquid of going round and beginning again.

When equipment is out of order or is subjected to the influence of other factors can't drawing liquid the time (being lower than bottom valve, liquid pump filler wearing and tearing back leakage, pipeline knockout, crack etc. as liquid level), this moment box C ₁No liquid is injected, K ₃Can not disconnect, timing relay SJ obtains electricity time-delay, and after the time reached, normally closed interlock that its time-delay disconnects disconnected coil C dead electricity with circuit, the contactor tripping operation, and the motor D stall, the normally open contact of its time closing is the alarm circuit closure, the electric bell warning of making sound.

When motor D or liquid pump Z in the course of the work, as electrothermal relay RJ action when occurring causing motor running overload or stall after the damage of bearings of motor D open-phase running or liquid pump Z, circuit is disconnected, coil C dead electricity, the contactor tripping operation, motor D stall, drop to the end during liquid level in liquid level, controller is automatically with the circuit closure, because electrothermal relay action back is not in off-position by rest button contactor coil C, timing relay coil SJ obtains the electricity time-delay, and the time arrives the back action, and electric bell obtains electric alarm.

Use this automatic control of liquid and warning device, have simple in structure, easy to use, install easily and can be applicable to the occasion such as the water tower of various automatic control of liquid and warning, the automatic control and the warning of water levels such as elevated tank, water storage tank, water factory's cistern, automatic control of liquid and warning that the pump that also can be applicable to locate in oil pressing mill, starch factory, bean vermicelli factory, chemical plant etc. is cheated.

Fig. 1 is that the utility model is used for the wiring diagram that water tower level is controlled and reported to the police automatically.

Fig. 2 is the structural drawing of gauge tap.

Embodiment:

Knife switch HK as shown in Figure 1 and Figure 2 selects for use 3X30A, A.C. contactor C to select for use CJ0-20 molded lines circle voltage 380V, time relay sj earlier with JS7-2A coil voltage 380V, electrothermal relay RJ selects JR16-20/3D for use, electric bell F selects 6 inch coil voltage 220V for use, 1RD, 2RD is 10A, and the protective cover 1 usefulness plastics manufacturing of gauge tap also is installed on the switch frame 6 with screw, and box A, B, C make with plastics, its diameter is that ∮ 75mm, high h are 55mm, at box C ₁The bottom have aperture 19, switch frame 6 bakelite manufacturing, garden shape

static contact

2,5,3,11, moving contact K ₁, K ₂, K ₃All make, at moving contact K with the thick copper product of 1.5mm-2mm ₁, K ₂, K ₃, on make silver alloy the contact,

static contact

2,5,3,11 is installed on the switch frame 6 moving contact K with screw rod and

nut

14,15,16 respectively ₂Mode with stationary fit is installed on the slide bar 8 moving contact K ₁Be installed on the slide bar 8 and

compression spring

12,10 is installed with movingly mode, slide bar 8 is installed on the switch frame 6 in mode movingly, and stop pin 9 is housed and links moving contact K with nylon rope 7 and zygote A, B ₃Be installed on the support 17, support 17 is installed on the switch frame 6, and extension spring 18, K are housed ₃The other end with nylon rope 7 and box C ₁Link.

Claims

1, a kind of automatic control of liquid and warning device is characterized in that by liquid case E and place the inner face that can control two position in it that box A, the B of liquid are housed that box A, B connect and link with slide bar 8 with nylon rope 7.Moving contact K is housed on slide bar 8 ₁, K ₂, its slide bar is contained on the switch frame 6, on switch frame 6 and slide bar 8, stop pin 9 is housed and be equipped with can adjusting position garden shape static contact 2,3,11; Place in addition and when motor D or liquid pump Z break down, can control the box C that realization is cut off the electricity supply automatically and reported to the police in it ₁, box C ₁With nylon rope 7 and the lever K that auxiliary moving contact is housed ₃Link to each other lever K ₃Be contained on the support 17, support 17 is contained on the switch frame 6 and uses extension spring 18 and lever K ₃An end link to each other and to make its auxiliary moving contact lever K ₃With auxiliary static contact 5 normally closed and cover control circuit compositions correspondingly, its main control circuit is by K ₁, K ₂, contactor coil C, electrothermal relay RJ, timing relay SJ form, its auxiliary circuit is by K ₃, timing relay SJ, electric bell F form.Two circuit constitute the running of control motor D and liquid pump Z or stop and motor D and liquid pump Z realize the circuit of cutting off the electricity supply automatically and reporting to the police automatically when breaking down thus.

2, automatic control of liquid according to claim 1 and warning device is characterized in that described moving contact K ₂Mode with stationary fit is contained on the slide bar 8 moving contact K ₁Be contained on the slide bar 8 with movingly mode, compression spring 10,12 and stop pin 9 are housed on slide bar 8.

3, automatic control of liquid according to claim 1 and warning device is characterized in that described box A, B make with the material of acid and alkali-resistance, and box A, B diameter are ∮ 75mm, and height is h55mm.

4, automatic control of liquid according to claim 1 and warning device is characterized in that described box C ₁Be made, and have an aperture 19 in its bottom with acid and alkali-resistance.