CN106352157A

CN106352157A - Control system used for excrement collector system and having slide valve fault detection function

Info

Publication number: CN106352157A
Application number: CN201610961098.6A
Authority: CN
Inventors: 彭昭麟; 周迅; 陈强; 洪琴
Original assignee: CHANGZHOU JIANHU JINCHENG VEHICLE EQUIPMENT Co Ltd
Current assignee: CHANGZHOU JIANHU JINCHENG VEHICLE EQUIPMENT Co Ltd
Priority date: 2016-10-27
Filing date: 2016-10-27
Publication date: 2017-01-25

Abstract

The invention relates to the technical field of slide valve detection and in particular relates to a control system used for an excrement collector system and having a slide valve fault detection function. The control system comprises a slide valve, wherein the slide valve comprises a slide valve body and an air cylinder, wherein a cavity at one side of a piston in the air cylinder is connected with a solenoid valve and a pressure switch through a two-position and five-way solenoid valve respectively; a cavity at the other side of the piston in the air cylinder is connected with a vacuum dirt box through a two-position and five-way solenoid valve; two sides of the slide valve body are communicated with the vacuum dirt box and an excrement collector respectively; an air pressure testing port is formed in the slide valve body; the pressure switch is connected with the air pressure testing port. According to the system provided by the invention, the change of pressure in the air pressure testing port of the slide valve body and the air cylinder is monitored respectively through the pressure switch, so that whether seal in the slide valve has leakage faults or not and the air cylinder of the slide valve moves normally or not is judged.

Description

A kind of control system for excrement collector system with Slide value fault detection function

Technical field

The present invention relates to guiding valve detection technique field, more particularly, to a kind of have Slide value fault detection for excrement collector system The control system of function.

Background technology

Guiding valve uses relatively broad, when guiding valve is applied as a kind of valve controlling fluid flow in current every field When in vacuum excrement collector system, guiding valve is connected with closet, vacuum dirt box respectively, by solenoid valve control guiding valve cylinder dynamic Make, realize the opening and closing of guiding valve, when guiding valve works long hours, the sealing ring in guiding valve easily lost efficacy, and the gas in guiding valve Cylinder is easily damaged, and designing a kind of system that can detect Slide value fault becomes urgent problem.

Content of the invention

The purpose of the present invention is the defect overcoming prior art to exist, and provides one kind to have guiding valve event for excrement collector system The control system of barrier detection function, whether just whether the sealing being capable of detecting when in guiding valve have the cylinder of leakage failure and guiding valve Often action.

The technical solution adopted for the present invention to solve the technical problems is: one kind has Slide value fault for excrement collector system The control system of detection function, including guiding valve, guiding valve includes slide valve and cylinder, and the cavity of piston side passes through two Five-way electromagnetic valve is connected with electromagnetic valve, pressure switch respectively, and the cavity of piston opposite side passes through two-position-five-way solenoid valve It is connected with vacuum dirt box, the both sides of slide valve connect with vacuum dirt box, closet respectively, slide valve opens up air pressure test Mouthful, pressure switch is connected with air pressure test mouth.

Beneficial effect: in the system, mouth and inner pressure of air cylinder are tested by the air pressure that pressure switch monitors slide valve respectively Change, to judge whether the sealing in guiding valve has whether leakage failure and the cylinder of guiding valve are operating normally.

Brief description

Fig. 1 is the control system figure of the present invention；

Fig. 2 is structural representation when guiding valve cuts out；

Fig. 3 is structural representation when guiding valve is opened.

In figure: 10- guiding valve, 11- slide valve, 111- air pressure test mouth, 12- cylinder；20- two-position-five-way solenoid valve；30- electricity Magnet valve；40- pressure switch；50- vacuum dirt box；60- closet；70- vacuum tank；80- first check valve；90- second check valve.

Specific embodiment

With reference to Fig. 1-3, the invention will be further described.

A kind of control system for excrement collector system with Slide value fault detection function, including guiding valve 10, guiding valve 10 wraps Include slide valve 11 and cylinder 12, the cavity of cylinder 12 inner carrier side pass through two-position-five-way solenoid valve 20 respectively with electromagnetic valve 30, Pressure switch 40 is connected, and the cavity of cylinder 12 inner carrier opposite side passes through two-position-five-way solenoid valve 20 and vacuum dirt box 50 phase Even, the both sides of slide valve 11 connect with vacuum dirt box 50, closet 60 respectively, and slide valve 11 opens up air pressure test mouth 111, pressure Power switch 40 is tested mouth 111 with air pressure and is connected.

The Cleaning Principle of the system is as follows:

1st, dead electricity after two-position-five-way solenoid valve 20 accepts during flush signal, for the ease of description, by two-position-five-way solenoid valve 20 mouth is labeled according to 1-5 described in accompanying drawing 1, and vacuum dirt box 50 passes through 1-2 mouth and the cylinder of two-position-five-way solenoid valve 20 12 connections, 5 mouthfuls of connection electromagnetic valves 30 of two-position-five-way solenoid valve 20, because electromagnetic valve 30 is to cut out, cylinder 12 can not be to the right Motion, the interface of pressure switch 40 can form negative pressure simultaneously, is postponing some time (the demand adjustment setting controlling according to system Time delay) electromagnetic valve 30 must be electric afterwards, and the piston of cylinder 12 promotes the valve block in guiding valve 10 to move right, and guiding valve 10 is open shape State, as described in Figure 3, the dirt of closet 60 is arranged to vacuum dirt box 50 in the presence of negative pressure of vacuum.

Before and after electromagnetic valve 30 energized action, the pressure of the interface of pressure switch 40 can change, thus leading to pressure switch 40 Contact action output switching signal, if guiding valve 10 fault leads to the piston of cylinder 12 can not move, electromagnetic valve 30 obtains electric beating After opening, the air pressure of the interface of pressure switch 40 does not have significant change, and control system does not receive pressure switch at the appointed time The switching signal of output produces fault it can be determined that haveing guiding valve 10.

2nd, closet 60 is before blowdown process terminates, first electromagnetic valve 30 dead electricity and close.Blowdown process terminates, two-position five-way Electromagnetic valve 20 first electric, vacuum dirt box 50 is connected with the cylinder 12 of guiding valve 10 by 1,4 mouthfuls of two-position-five-way solenoid valve 20, Cylinder 12 promotes the valve plate movement of guiding valve 10 to close guiding valve 10 to the left, as shown in Fig. 2 subsequent electromagnetic valve 30 dead electricity is closed, one Individual flushing pollution discharge process terminates.

3rd, before accepting next flush signal, the interface of pressure switch 40 is atmospheric pressure, guiding valve 10 and vacuum dirt Case 50 connector is negative pressure state, if guiding valve 10 inner seal ring has leakage phenomenon to occur, guiding valve 10 inner chamber also forms negative pressure, sliding The air pressure of valve 10 is tested mouth 111 and is also produced negative pressure with the interface of pressure switch 40, leads to pressure switch 40 action, now pressure is opened Close 40 switching signals sending and show that guiding valve 10 inner seal ring produces leakage failure.

As further preferred version: connect vacuum tank between described vacuum dirt box 50 and two-position-five-way solenoid valve 20 70, connect the first check valve 80 between vacuum tank 70 and vacuum dirt box 50, the flow direction of the first check valve 80 is from vacuum tank 70 Flow at vacuum dirt box 50 place at place.First is installed unidirectional between vacuum dirt box 50 and two-position-five-way solenoid valve 20 Valve 80 and vacuum tank 70, the pressure in the vacuum dirt box 50 when guiding valve 10 cuts out reaches the negative pressure value of setting, in vacuum tank 70 Pressure consistent with the pressure of vacuum dirt box 50.Open guiding valve 10, when vacuum dirt box 50 receives dirt, vacuum reduces, the One check valve 80 guarantees that the negative pressure value in vacuum tank 70 keeps constant it is ensured that there being enough pressure reduction to promote the piston in guiding valve 10, The normal operation of guarantee system.

Preferably, it is connected by the second check valve 90 between described pressure switch 40 and air pressure test mouth 111, second is unidirectional The flow direction of valve 90 is to flow at air pressure test mouth 111 place from pressure switch 40 place.

It should be appreciated that specific embodiment described above is only used for explaining the present invention, it is not intended to limit the present invention.By Obvious change that the spirit of the present invention is extended out or change among still in protection scope of the present invention.

Claims

1. a kind of for excrement collector system have Slide value fault detection function control system it is characterised in that: include guiding valve (10), guiding valve (10) includes slide valve (11) and cylinder (12), and the cavity of cylinder (12) inner carrier side is by two-position five-way electricity Magnet valve (20) is connected with electromagnetic valve (30), pressure switch (40) respectively, and the cavity of cylinder (12) inner carrier opposite side passes through two Five-way electromagnetic valve (20) is connected with vacuum dirt box (50), the both sides of slide valve (11) respectively with vacuum dirt box (50), closet (60) connect, slide valve (11) opens up air pressure test mouth (111), pressure switch (40) is connected with air pressure test mouth (111).

2. the control system for excrement collector system with Slide value fault detection function according to claim 1, its feature It is: connect vacuum tank (70) between described vacuum dirt box (50) and two-position-five-way solenoid valve (20), vacuum tank (70) and very Connect the first check valve (80) between empty dirt box (50), the flow direction of the first check valve (80) be from vacuum tank (70) place to Flow at vacuum dirt box (50) place.

3. the control system for excrement collector system with Slide value fault detection function according to claim 2, its feature It is: it is connected by the second check valve (90) between described pressure switch (40) and air pressure test mouth (111), the second check valve (90) flow direction is to flow at air pressure test mouth (111) place from pressure switch (40) place.