Water bath carburetor

Abstract

The invention discloses a water bath carburetor in the field of a heat exchanger. A steam distributor is arranged on the inner bottom of a shell, the steam distributor comprises a conical cover, an inner pipe and an outer pipe, which are coaxial with each other, are fixedly arranged on the central position at the lower side of the conical cover, a steam inlet pipe is connected to the center from top to bottom and is connected to an inner cavity of an inner pipe, a floating ball is arranged in the inner pipe, the bottom of the inner pipe is provided with a bottom cover for installing the floating ball, a valve seat corresponding to the floating ball is arranged on the inner top of the inner pipe, a plurality of cyclone through holes are formed in the side surface of the inner pipe, and the cyclone through holes are distributed on the inner pipe in an integrally vortex shape; the bottom of the outer pipe is provided with an opening, a liquid outlet hole is formed in the side wall of the outer pipe, and a plurality of distribution holes penetrating through the conical cover from top to bottom are formed in the area, which is arranged at the outer side of the outer pipe, of the conical cover. By adopting the water bath carburetor, the cavitation corrosion can be avoided, and the application reliability of the device can be guaranteed.

Description

technical field [0001] The invention relates to a heat exchanger, in particular to a water bath evaporator. Background technique [0002] In the prior art, there is a water-bath vaporizer, the structure of which mainly includes a vertical housing, the lower part of the housing is provided with a liquid inlet pipe, and the upper part of the housing is provided with an air outlet pipe, and the liquid inlet pipe and the air outlet pipe are vaporized The tube bundles are connected, and an external circulation pipeline is provided between the lower part and the upper part of the shell, and a circulation pump is installed on the external circulation pipeline; a steam inlet pipe is connected to the shell, and an annular steam distribution pipe is arranged horizontally at the inner bottom of the shell. The piping is connected with the steam inlet pipe, and several air outlet holes are arranged on the upper pipe wall of the steam distribution pipe. The device is used in petrochemica...

AI Technical Summary

Problems solved by technology

The disadvantage of this device is that: since the steam pipeline is arranged at the bottom, after the steam enters the device, the steam changes from a gaseous state to a liquid in an instant when it encounters water. Partial vacuum will pull the surrounding water to fill, causing liquid hammer and loud knocking sound. At the same time, cavitation corrosion (cavitation) will occur. Cavitation corrosion will tear the metal surface and leave corrosion spots on the pipeline. , in severe cases, the pipeline will be quickly damaged, especially the vaporization tube bundle corresponding to a small size, which is difficult to repair after damage, and will cause the entire water bath heater to be scrapped

In addition, the amount of gas supplied to the device varies with the demand for gas production. When the required gas production is small, the amount of steam supplied is reduced accordingly. Since the number of holes and the area of ​​the holes on the steam distribution pipe remain unchanged, When the steam supply is less, part of the water will enter the steam distribution pipe, and even enter the steam inlet pipe, causing more serious cavitation corrosion phenomenon, and also causing fluctuations in steam flow and vaporization output.

Images