CN207877281U - Dissolving solution smooth delivery pipeline - Google Patents

Abstract

The utility model relates to a pipeline for stably transporting a solution, in which a Y-shaped filter (2), a first diaphragm type pulsation damper (3), Metering pump (4), second diaphragm type pulsation damper (5), pressure gauge (6), back pressure valve (7), between the metering pump (4) and the second diaphragm type pulsation damper (5) An exhaust branch is arranged on the main pipe, and a safety valve (8) and an exhaust valve (9) are connected in series on the exhaust branch. Through the optimized arrangement of pipeline components on the pipeline, the risk of pipeline pressure vibration and system damage caused by unstable pressure of the conveying medium can be avoided, the service life of the conveying pipeline and pipeline components can be extended, and smooth and continuous feeding can be ensured. Note point conveying dosing medium.

Description

Dissolving solution smooth delivery pipeline

technical field

The utility model belongs to the technical field of sewage treatment, in particular to a solution delivery pipeline connected between a dissolution tank and a filling point.

Background technique

In the sewage treatment process, it is inevitable to add flocculant solution, slaked lime solution, etc., which are collectively referred to as dosing. The solution is fully stirred and dissolved in the dissolution tank, and then transported to the filling point through the pipeline.

In the existing solution delivery pipeline, the pipeline vibrates greatly due to unstable fluid pressure and flow, and there is a risk of damage to downstream instruments and equipment.

Utility model content

The utility model aims to solve the risk of pressure vibration of the pipeline and the risk of system damage caused by the unstable pressure of the delivery medium in the existing solution delivery pipeline, which cannot smoothly and continuously deliver the dosing medium to the filling point.

For this reason, the technical solution adopted by the utility model is: a stable delivery pipeline for the solution, including a dissolution tank, and a main pipeline arranged between the dissolution tank and the filling point, and Y-shaped pipelines are installed in sequence on the main pipeline. Filter, first diaphragm pulsation damper, metering pump, second diaphragm pulsation damper, pressure gauge, back pressure valve, the main pipeline between the metering pump and the second diaphragm pulsation damper is provided with exhaust A branch circuit, a safety valve and an exhaust valve are connected in series on the exhaust branch circuit.

As a preference of the above solution, the first diaphragm pulsation damper and the second diaphragm pulsation damper are respectively equipped with a shut-off valve, and a shut-off valve is also installed on the main pipeline between the Y-shaped filter and the dissolution tank. Two diaphragm pulsation dampers can work at the same time, or one of them can be used as a backup, and each stop valve can be opened or closed according to the needs, so as to realize simultaneous work or separate work, through the main line between the Y-type filter and the dissolution tank The shut-off valve is installed to control whether to send the solution to the filling point.

The beneficial effects of the utility model are:

(1) Install a diaphragm pulsation damper before and after the metering pump to reduce or eliminate the harm of water hammer to the system, limit the harmful pressure peak generated when the pump is stopped, protect the pipeline, elbows and joints, and reduce pressure fluctuations The impact of the metering pump creates a good working environment and improves the performance of the pump. It can be used in conjunction with other accessories such as back pressure valves to make the pressure fluctuation of the system pipeline close to zero, preventing medium bubbles, jetting and degradation. Reduce the impact of flowmeters and other measuring instruments from pipeline pressure fluctuations;

(2) The back pressure valve provides a pressure difference for the pipelines at both ends of the back pressure valve to prevent the occurrence of siphon, eliminate the change of the dosage caused by the pressure fluctuation of the dosing point, and cooperate with the pulsation damper to reduce the harm of water hammer to the system , protect pipelines, elbows and joints, reduce the impact of pressure fluctuations, and use them in conjunction with other pipeline components such as pulsation dampers to maximize their effectiveness;

(3) Install a safety valve on the exhaust branch to release the pressure and ensure the stability of the system pressure. When the pressure is too high, the safety valve will automatically open to release the medium safely; Heads and joints reduce the impact of pressure fluctuations.

To sum up, through the optimized arrangement of pipeline components on the pipeline, the risk of pipeline pressure vibration and system damage risk caused by the unstable pressure of the conveying medium can be avoided, and the service life of the conveying pipeline and pipeline components can be extended to ensure Smooth and continuous delivery of dosing medium to the filling point.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

Below by embodiment and in conjunction with accompanying drawing, the utility model is further described:

As shown in Figure 1, a stable delivery pipeline for a solution mainly consists of a main pipeline, a Y-shaped filter 2 arranged on the main pipeline, a first diaphragm type pulsation damper 3, a metering pump 4, a second diaphragm type It consists of a pulsation damper 5, a pressure gauge 6, a back pressure valve 7, a safety valve 8, an exhaust valve 9 and a stop valve 10.

The main pipeline is connected between the dissolution tank 1 and the filling point, and a Y-shaped filter 2, a first diaphragm pulsation damper 3, a metering pump 4, a second diaphragm pulsation damper 5, and a pressure gauge are installed in sequence on the main pipeline 6. Back pressure valve 7.

An exhaust branch is arranged on the main line between the metering pump 4 and the second diaphragm pulsation damper 5, and a safety valve 8 and an exhaust valve 9 are connected in series on the exhaust branch.

Preferably, the first diaphragm pulsation damper 3 and the second diaphragm pulsation damper 5 are equipped with a cut-off valve 10 respectively, and the main line between the Y-type filter 2 and the dissolution tank 1 is also equipped with a cut-off valve 10 .

Claims (2)

1. a kind of steady transfer pipeline of lysate, including dissolving tank (1), and be arranged in dissolving tank (1) between filling point Main line, it is characterised in that：Be sequentially installed on the main line y-type filter (2), the first diaphragm-type pulsation damper (3), Metering pump (4), the second diaphragm-type pulsation damper (5), pressure gauge (6), counterbalance valve (7), the metering pump (4) and the second diaphragm It is provided with exhaust branch on dissolving tank (1) between formula pulsation damper (5), safety valve (8) is in series on the exhaust branch With air bleeding valve (9).

2. the steady transfer pipeline of lysate according to claim 1, it is characterised in that：The first diaphragm-type pulsation damping Device (3), the second diaphragm-type pulsation damper (5) are equipped with there are one shut-off valve (10), the y-type filter (2) and dissolving Shut-off valve (10) is also installed on the main line between pond (1).