CN2173948Y

CN2173948Y - JCY series magnetic liquid level monitor

Info

Publication number: CN2173948Y
Application number: CN 92237504
Authority: CN
Inventors: 陈永元
Original assignee: Yangzijiang Electronic Instrument & Meter Plant Jiangyin City
Current assignee: Yangzijiang Electronic Instrument & Meter Plant Jiangyin City
Priority date: 1992-10-16
Filing date: 1992-10-16
Publication date: 1994-08-10
Anticipated expiration: 2002-10-16

Abstract

The utility model relates to a JCY series magnetic liquid level monitor which can automatically monitor and alarm to the liquid level which is controlled by container with high temperature and high pressure, and is especially suitable for a ship boiler. The outer structure of the utility model is divided into an upper part and a lower part. The upper part is provided with an electrical parts holder, and a magnetic relay and a magnetic probe are arranged in the electrical parts holder. The lower part is a cylinder body, and a floating ball and a guiding rod are arranged in the cylinder body. The floating ball is connected with the magnetic probe by using the guiding rod, and the cylinder body is connected with a high pressure container via a flange plate. The magnetic probe rises and falls following the floating ball via the guiding rod. The up-down motion of the magnetic probe is converted to rotary of a magnetic pendulum which is in the magnetic relay to control the turning on and cutting of the circuit, and the water intake, water breaking and automatic alarm are further controlled.

Description

JCY series magnetic liquid level monitor

The utility model relates to a kind of liquid level that the high temperature and high pressure containers of unlimited and pressure-bearing is controlled and carries out device for monitoring, can satisfy the level monitoring of the marine boiler of high request.

The useful inductance value of at present known leve monitor changes principle, useful electrode principle waits and shows the liquid level lifting, though can monitor automatically, but complex structure, fault is many, poor reliability, use inconvenient, that generally uses on the present domestic boiler is still the glass liquid level monitor, with visual inspection, manual operations, especially the marine boiler leve monitor need bear High Temperature High Pressure, tilt, wave, rugged surroundings such as impact, salt fog, mould, so the marine boiler liquid level is supervised then, and device can only rely on import for a long time.

The purpose of this utility model provides a kind of liquid level of can not only monitoring automatically and sends light, acoustic alarm, and can control water inlet automatically or cut off the water supply, and the magnetic level monitor that can bear high temperature, high pressure, tilt, wave, work under the rugged surroundings such as salt fog, mould.

The purpose of this utility model is achieved in that this magnetic level monitor, comprise automatic control circuit, sound, optical alarm circuit, its structure divides upper and lower two parts to form, and the electrical equipment box is arranged at top, in magnetic relay and magnetic probe are housed, the bottom is a cylindrical shell, in be provided with ball float and guide rod, cylindrical shell is by ring flange and need the high pressure vessel of monitoring to communicate, and is connected with guide rod between ball float and the magnetic probe.Because ball float lifting with the lifting of liquid level in the cylindrical shell, drive the lifting of probe, when magnetic probe rises to certain magnetic relay, the magnetic pendulum of magnetic relay rotates, thereby change the contact point that touches bridge of magnetic relay, the control circuit break-make, control is intake or the circuit of cutting off the water supply automatically, controls the warning circuit of light, sound automatically.When magnetic probe continue to rise, magnetic relay keeps this state, and when magnetic probe dropped to this magnetic relay along with ball float, there is a natural attraction between the sexes owing to the magnet magnetic pole, the principle that the same sex is repelled each other, make relay magnetic pendulum, touch bridge recovery original state.

The mutual magnetic conductance interaction energy that the utility model has the advantages that the magnetic relay that utilizes up-to-date magnetic conductance principle and magnetic probe is the break-make of control circuit effectively, reaching automatic control intakes or cuts off the water supply, automatic purpose of reporting to the police, and the position of magnetic relay can be set according to the liquid level standard of different high temperature and high pressure containers, Installation and Debugging are convenient, and because magnetic relay and magnetic probe, ball float Purely mechanical structure, reliable operation can be born high temperature, high pressure, be tilted, waves rugged surroundings such as impacting salt fog.

Below in conjunction with accompanying drawing the utility model is further specified:

Fig. 1 is a structure cut-open view of the present utility model;

Fig. 2 is the magnetic relay cut-open view;

Among the figure: 1, electrical equipment box shell, 2, magnetic probe, 3, magnetic relay, 4, backstay, 5, conduit, 6, cylindrical shell, 7, ring flange, 8, guide rod, 9, ball float, 10, the pyroceram cover, 11, magnetic pendulum, 12, touch bridge, 13, fixing spring, 14, contact point, 15, back-up ring, 16, central shaft, 17, ceramics seat, 18, static contact, 19, fixed mount.

In the embodiment shown in fig. 1, electrical equipment box shell 1 usefulness wing nut is fixed, adopt the non-magnetic material to make, do not disturb when making magnetic relay 3 work, installation can be adjusted according to the liquid level that various high temperature and high pressure containers is controlled in the position of magnetic relay 3 on backstay 4, can be screwed on backstay 4 the upper and lower top and bottom that is separately fixed at the electrical equipment box of backstay 4 usefulness screws; Ball float 9, guide rod 8, magnetic probe 2 are installed one, ball float is below in the cylindrical shell, be connected by guide rod 8 between ball float and the magnetic probe, guide rod 8 upper ends are threaded with probe, the lower end is connected with the ball float electric welding, and magnetic probe 2 is limited in the conduit 5, conduit 5 top electric welding sealings, the bottom is connected with the square flange electric welding, is arranged in the electrical equipment box 1.Ball float 9 is selected the compression moulding of import stainless steel 1mm sheet material, argon welding balling-up for use; Magnetic probe 2 adopts the metal shell protection, and inner encapsulation permanent-magnet materials seals with epoxy resin, and magnetic probe magnetic is protected and can stands vibration, salt fog etc. simultaneously like this, and is unaffected.Ball float 9 is along with the liquid level in the cylindrical shell 6 is floated, when ball float 9 is being with magnetic probe 2 by guide rod 8, when making magnetic probe 2 rise in the working range of certain magnetic relay, vertically moving up and down of magnetic probe 2 transforms magnetic pendulum 11 rotations of Fig. 2 magnetic relay 3 by up-to-date magnetic conductance effect, thereby change the contact point 14 that touches bridge 12, the control circuit break-make, control is intake or the circuit of cutting off the water supply automatically, controls the warning circuit of electric light electroacoustic automatically.Cylindrical shell 6 is selected weldless steel tube for use, adopts the one rotary press modelling, and the latus rectum that ring flange 7 and cylindrical shell 6 link waters steel and becomes one, the disadvantage of having avoided welding to cause effectively.

In the cut-open view of Fig. 2 embodiment magnetic relay 3: pyroceram cover 10 lower seat drop on ceramics seat 17 bottoms, the bottom is fixed on the ceramics seat 17 with fixing spring 13, select for use high-temperature high-pressure glass tubing to add hot extrusion molding, annealing in process is applicable under the environment such as vibration, salt fog and uses then.Use quiet iron in the middle of the magnetic pendulum 11, two bonding with permanent magnetic material, is fixed on the ceramics seat top with the stainless steel pin; Touch bridge 12 and touch the bridge riveted joint with upper and lower for drawing, contact point 14 with under touch the bridge top and rivet; Touching bridge and the ceramics seat center fixed has ring washer 15, central shaft 16 will touch the middle part that the bridge ring washer is fixed on ceramics seat 17; The riveted joint of static contact 18 tops is contact point down, and lower tip and the welding of high temperature resistant line except that the top, all are adhered to ceramics seat 17 bottoms; Fixed mount 19 tops are connected with ceramics seat 17 with screw, and the bottom is connected with screw with backstay.When magnetic pendulum 11 and magnetic probe 2 mutual magnetic conductance effects, attract to touch bridge 12 when magnetic pendulum rotates and rotate, thereby change the contact point 14 that touches bridge, the control circuit break-make is controlled the water inlet or the circuit of cutting off the water supply automatically, the warning circuit of control electric light electroacoustic.Between pyroceram cover 10 and central shaft 16, be provided with a not only lubricated but also wear-resisting ring washer 15 and make and touch the bridge slow-roll stabilization, avoided touching the friction between bridge and cloche simultaneously.

The utility model produces a mouthful supervision through Jiangsu Province's electronics and detects institute's test result (the inspection 92-304 of Soviet Union) magnetic relay operate as normal 50,000 times under 223 ℃ of high temperature, whole compression resistance 2.45MPa, tilt to wave to surpass 22.5 ℃ of electrical equipment standards peculiar to vessel, measuring error lifting＜1mm.

This monitor electric appliance circuits is supporting according to customer requirements and boiler electrical equipment facility, the input electric cabinet.

Claims

1, a kind of magnetic level monitor, comprise automatic control circuit, sound light alarming circuit is characterized in that: its external structure divides upper and lower two parts to form, electrical equipment box (1) is arranged at top, in magnetic relay (3) and magnetic probe (2) are housed, the bottom is cylindrical shell (6), in ball float (9), guide rod (8) are arranged, cylindrical shell communicates by ring flange (7) and high pressure vessel, is connected with guide rod between ball float and the magnetic probe.

2, magnetic level monitor according to claim 1, be characterised in that altogether: pyroceram cover (10) lower seat of magnetic relay (3) drops on ceramics seat (17) bottom, the upper and lower part has fixing spring (13) to be fixed on the ceramics seat (17), use quiet iron in the middle of the magnetic pendulum (11), two bonding with permanent magnetic material, is fixed on the ceramics seat top with the stainless steel pin; Touch bridge (12) and touch bridge riveted joint with upper and lower for drawing, contact point (14) with under touch the bridge top and rivet; Ring washer (15) is arranged touching bridge and ceramics seat center fixed, central shaft (16) will touch the following contact point of middle part static contact (18) top riveted joint that the bridge ring washer is fixed on ceramics seat (17), lower tip and the welding of high temperature resistant line except that the top, all are adhered to ceramics seat (17) bottom; Fixed mount (19) top is connected with ceramics seat (17) with screw, and the bottom is connected with screw with backstay.

3, magnetic level monitor according to claim 2, it is characterized in that the liquid level that the position of magnetic relay (3) can be controlled according to various high temperature and high pressure containers, go up adjustment at backstay (4) and install, magnetic relay shell (10) selects for use high-temperature high-pressure glass tubing to add hot extrusion molding.

4, magnetic level monitor according to claim 1 is characterized in that cylindrical shell (6) selects weldless steel tube one rotary press modelling for use, and ring flange (7) and latus rectum water steel and be integral.

5, magnetic level monitor according to claim 1 is characterized in that magnetic probe (2) adopts the metal shell protection, and inner encapsulation permanent-magnet materials seals with epoxy resin.