Automatic pressure test machine for horizontal type collector flow channel

Abstract

The invention discloses an automatic pressure test machine for a horizontal type collector flow channel. The automatic pressure test machine comprises a support. A water supply connector and a water discharge connector are arranged on the support and are respectively connected with a driving device in a transmission mode, a water supply pipeline of the water supply connector is communicated with a water injection system and a pressurization system in parallel, a water discharge pipeline of the water discharge connector is provided with a valve, the valve is used for eliminating the water hammer phenomenon and can be slowly shut off, and the automatic pressure test machine further comprises a water discharge pressurization system communicated with the water supply pipeline of the water supply connector. Water can be injected into the collector flow channel through the water injection system and the pressurization system at the same time at the water injection stage, time for water injection is greatly shortened, air in the collector flow channel can be thoroughly exhausted, the problem that air is blocked in the collector flow channel and cannot be exhausted is eliminated, and work efficiency of horizontal type collector flow channel pressure test equipment and reliability of pressure test and leakage detection can be greatly improved.

Description

technical field [0001] The invention relates to a pressure testing machine for checking whether there is leakage in a pipeline, more specifically, relates to an automatic pressure testing machine for checking whether there is leakage in a flow channel of a horizontal heat collector. Background technique [0002] The collector flow channel is an important part of the flat solar collector, and the collector flow channel and the heat absorbing plate form the collector plate core of the flat solar collector. The collector flow channel is composed of a header pipe and several row pipes welded with the header pipe. The collector flow channel welded by the header pipe and several row pipes needs to be inspected, and then connected with the suction pipe after confirming that there is no leakage. The executive plate is assembled into the collector plate core, so that the quality of the flat solar collector is effectively guaranteed. Otherwise, if there is leakage in the flow channel...

AI Technical Summary

Problems solved by technology

[0004] 1. There is a "water hammer" problem in the traditional equipment used for the pressure test of the flow channel of the horizontal collector, which is easy to cause damage to the pipeline and pipe fittings of the equipment used for the pressure test of the horizontal collector flow channel, which seriously affects the use of the equipment life

[0005] 2. The traditional equipment used for the pressure test of the flow channel of the horizontal collector can only inject water into the flow channel of the collector through the booster pipeline. The water injection time is long, which greatly increases the working time and wear of the booster pump, and causes It takes a long time to pressurize, the work efficiency of the equipment pressure test is low, and the flow rate from the booster pipeline into the flow channel of the collector is small. During the water injection process, the water discharged from the flow channel of the collector cannot flow out of the full pipe. , so it is difficult to discharge the air in the collector flow channel, and there is a problem of air pocket

[0006] 3. If water leakage is found during the stages of water injection, pressurization, and pressure maintenance, the pressure cannot be released in time, the pressure test process will be interrupted, the operation time of the equipment will be prolonged, and the work efficiency of the equipment pressure test will be low.

[0007] 4. The traditional equipment used for the pressure test of the flow channel of the horizontal collector is not exhausted smoothly during the water injection stage, and there is a problem of air pockets in the flow channel of the collector. Due to the problem of cavitation, water cannot be injected into the location where cavitation occurs in the flow channel of the collector, and water injection and pressure testing cannot be performed on the location where cavitation occurs. Leakage in some locations where cavitation occurs will not be detected. , which greatly reduces the reliability of pressure test and leak detection

[0008] 5. The traditional equipment used for the pressure test of the horizontal collector flow channel cannot quickly discharge the water in the collector flow channel during the pressure relief stage, and cannot completely empty the water in the collector flow channel. There is residual water in the channel, which is not convenient for product assembly in subsequent processes

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