CN205193063U

CN205193063U - Chemical oxygen demand detector

Info

Publication number: CN205193063U
Application number: CN201521028392.9U
Authority: CN
Inventors: 罗贤慧
Original assignee: Guangdong Intellectual Valley Power Environmental Technology Co ltd
Current assignee: Guangdong Intellectual Valley Power Environmental Technology Co ltd
Priority date: 2015-12-11
Filing date: 2015-12-11
Publication date: 2016-04-27
Anticipated expiration: 2025-12-11

Abstract

The utility model provides a chemical oxygen demand detector, clear up room, controller including sampling pump, multi-way valve, high temperature high pressure, the first port of multi-way valve is connected to the sampling pump, and the room is cleared up to the high temperature high pressure is connected to the second port of multi-way valve, clears up through first high pressure solenoid valve between the room to the second port of multi-way valve and high temperature high pressure, and first high pressure solenoid valve is connected to the controller electricity for control opening and closing of first high pressure solenoid valve. The utility model provides a chemical oxygen demand detector, through clear up room and multi-way valve at high temperature high pressure and add a first high pressure solenoid valve between, reduced high temperature high pressure and cleared up the room and cause dangerous coefficient to the multi-way valve.

Description

Chemical oxygen demand detection instrument

Technical field

The utility model relates to the on-line monitoring technique field of chemical oxygen demand (COD), particularly relates to a kind of chemical oxygen demand detection instrument.

Background technology

Water is one of most important Source of life of the mankind, along with the development of modern industry, water pollution is day by day serious, and the chemical oxygen demand (COD) in sewage effluent is usually used for weighing the pollution condition of blowdown water, sets up a set of stable chemical oxygen demand (COD) on-line monitoring system very important.

Traditional chemical oxygen demand (COD) (being called for short COD afterwards) detecting instrument, exist Maintenance Difficulty, failure rate high, measure inaccurately problem, such as traditional COD detector, room is cleared up by multiport valve connection sampling pump and High Temperature High Pressure, High Temperature High Pressure clears up room when High-temperature Digestion, and the hyperbaric environment of generation easily impacts multiport valve, causes occurring altering liquid phenomenon, meeting dusty gas reagent, even damages multiport valve; Conventional high-temperature high-pressure digestion room is all a passage turnover for another example, and in test water sample, if chlorine ion concentration is too high, solution produces a large amount of precipitation after clearing up cooling, is easy to the tiny pipelines such as blocking multiport valve when waste liquid is discharged.

Therefore, need to provide a kind of chemical oxygen demand detection instrument to solve the problems of the technologies described above.

Utility model content

The technical matters that the utility model mainly solves is to provide a kind of chemical oxygen demand detection instrument, adds a first high-pressure valve solenoid valve by clearing up in High Temperature High Pressure between room and multiport valve, decreases High Temperature High Pressure and clears up danger is caused in room coefficient to multiport valve.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is to provide a kind of chemical oxygen demand detection instrument, comprise: sampling pump, multiport valve, High Temperature High Pressure clear up room, controller, described sampling pump connects the first port of multiport valve, second port of described multiport valve connects High Temperature High Pressure and clears up room, second port of described multiport valve and High Temperature High Pressure are cleared up between room and are connected by the first high-pressure solenoid valve, controller is electrically connected the first high-pressure solenoid valve, for controlling the opening and closing of the first high-pressure solenoid valve.

Preferred described High Temperature High Pressure is cleared up bottom room and is offered a leakage fluid dram, described leakage fluid dram connects a discharging tube, the apocenosis passage of described discharging tube is provided with the second high-pressure solenoid valve of electrical connection controller, during discharge opeing, controller controls the first high-pressure solenoid valve cut out, the second high-pressure solenoid valve is opened, during feed liquor, controller control the first high-pressure solenoid valve open, second high-pressure solenoid valve close.

Preferably, the connecting pipe caliber of described first high-pressure solenoid valve is 3.6*1.2, the joint of described second high-pressure solenoid valve is M6 joint.

The beneficial effects of the utility model are: the situation being different from prior art, the chemical oxygen demand detection instrument that the utility model provides, a high temperature high pressure valve is added by clearing up in High Temperature High Pressure between room and multiport valve, decrease High Temperature High Pressure and clear up danger is caused in room coefficient to multiport valve, a leakage fluid dram is offered further via clearing up lower end, room in High Temperature High Pressure, get rid of waste liquid by leakage fluid dram during discharge opeing, reduce blocking probability.

Accompanying drawing explanation

Fig. 1 is the structural representation of the first preferred embodiment of chemical oxygen demand detection instrument of the present utility model;

Fig. 2 is the structural representation of the second preferred embodiment of chemical oxygen demand detection instrument of the present utility model.

Embodiment

Below in conjunction with diagram, the technical solution of the utility model is described in detail.

First embodiment

Shown in Figure 1, the chemical oxygen demand detection instrument of the first embodiment comprises: sampling pump (not shown), multiport valve 1, High Temperature High Pressure clear up room 2, controller (not shown), sampling pump connects the first port of multiport valve 1, second port of multiport valve 1 connects High Temperature High Pressure and clears up room 2, second port of multiport valve 1 and High Temperature High Pressure are cleared up between room 2 and are connected by the first high-pressure solenoid valve 3, controller is electrically connected the first high-pressure solenoid valve 3, for controlling the opening and closing of the first high-pressure solenoid valve 3.

In first embodiment, adding first high-pressure solenoid valve 3 by clearing up in High Temperature High Pressure between room 2 and multiport valve 1, decreasing High Temperature High Pressure and clearing up the danger coefficient that 2 pairs, room multiport valve 1 causes.

In the present embodiment, the caliber of the connecting pipe of the first high-pressure solenoid valve 3 is preferably 3.6*1.2, is certainly not limited thereto, and can need the caliber of the connecting pipe arranging the first high-pressure solenoid valve 3 according to concrete design.

Second embodiment

Shown in Figure 2, the chemical oxygen demand detection instrument of the second embodiment comprises: sampling pump (not shown), multiport valve 1, High Temperature High Pressure clear up room 2, controller (not shown), sampling pump connects the first port of multiport valve 1, second port of multiport valve 1 connects High Temperature High Pressure and clears up room 2, second port of multiport valve 1 and High Temperature High Pressure are cleared up between room 2 and are connected by the first high-pressure solenoid valve 3, controller is electrically connected the first high-pressure solenoid valve 3, for controlling the opening and closing of the first high-pressure solenoid valve 3.

The key distinction point of the second embodiment and the first embodiment is: High Temperature High Pressure is cleared up bottom room 2 and offered a leakage fluid dram, this leakage fluid dram connects a discharging tube, the apocenosis passage of discharging tube is provided with the second high-pressure solenoid valve 4 of electrical connection controller, during discharge opeing, controller controls that the first high-pressure solenoid valve 3 is closed, the second high-pressure solenoid valve 4 is opened, during feed liquor, controller controls that the first high-pressure solenoid valve 3 is opened, the second high-pressure solenoid valve 4 is closed.

Further, in the second embodiment, preferably the joint of the second high-pressure solenoid valve 4 is M6 joint, and the connecting pipe caliber of the first high-pressure solenoid valve 3 is 3.6*1.2.Certainly, in the present embodiment, the caliber of the first high-pressure solenoid valve 3 connecting pipe and the joint of the second high-pressure solenoid valve 4 can carry out choose reasonable setting according to concrete needs, and these all, within protection domain of the present utility model, do not limit this.

Compare in second embodiment and the first embodiment, offer a leakage fluid dram owing to clearing up bottom, room 2 in High Temperature High Pressure, by leakage fluid dram effluent discharge during discharge opeing, reduce plugging rate.

The chemical oxygen demand detection instrument that the utility model provides, the first high-pressure solenoid valve is added by clearing up in High Temperature High Pressure between room and multiport valve, decrease High Temperature High Pressure and clear up danger is caused in room coefficient to multiport valve, a leakage fluid dram is offered further via clearing up lower end, room in High Temperature High Pressure, get rid of waste liquid by leakage fluid dram during discharge opeing, reduce blocking probability.

The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing the utility model instructions and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims

1. A chemical oxygen demand detector, is characterized in that, comprises sampling pump, multi-way valve, high temperature and high pressure digestion chamber, controller, and described sampling pump connects the first port of multi-way valve, and the first port of described multi-way valve The second port is connected to the high-temperature and high-pressure digestion chamber, and it is characterized in that: the second port of the multi-way valve is connected to the high-temperature and high-pressure digestion chamber through a first high-pressure solenoid valve, and the controller is electrically connected to the first high-pressure solenoid valve for controlling Opening and closing of the first high pressure solenoid valve.

2. The chemical oxygen demand detector according to claim 1, wherein a liquid discharge port is provided at the bottom of the high-temperature and high-pressure digestion chamber, and the liquid discharge port is connected to a liquid discharge pipe, and the liquid discharge port is connected to a liquid discharge pipe. There is a second high-pressure solenoid valve electrically connected to the controller on the discharge channel of the pipe. When the liquid is discharged, the controller controls the first high-pressure solenoid valve to close and the second high-pressure solenoid valve to open. The solenoid valve is opened, and the second high-pressure solenoid valve is closed.

3. The chemical oxygen demand detector according to claim 1 or 2, characterized in that the diameter of the connecting pipe of the first high-pressure solenoid valve is 3.6*1.2.

4. The chemical oxygen demand detector according to claim 2, wherein the connector of the second high-pressure solenoid valve is an M6 connector.

5 . The chemical oxygen demand detector according to claim 4 , wherein the diameter of the connecting pipe of the first high-pressure solenoid valve is 3.6*1.2.