SU1110844A1 - Device for removing condensate from drying cylinder - Google Patents

Abstract

DEVICE FOR REMOVAL OF CONDENSATE FROM DRY CYLINDER, .- ,. , -. .., -; -----;.; : Ch1 containing a condensate drain pipe with a suction head, a steam supply pipe and a means for intensifying condensate drainage, consisting of a connecting pipe fitted with a steam supply regulator installed between the conduit and the condensate drain pipe, which is more expensive in order to reduce energy consumption due to the increase in the rate of the condensate drain, the means for intensifying the condensate drain has an additional pipe installed coaxially with the condensate pipe to form with it an ejector the enclosing chamber closed on the side of the drying cylinder to which the connecting tube is attached,

Description

The invention relates to a device for removing condensate from a drying cylinder and may find application in the paper industry.

A device is known for removing 5 condensate from a drying cylinder, comprising a condensate drain pipe with a suction head, a steam supply pipe and means for intensifying the condensate drain Cl J. 10

The condensate drainage means is made in the form of a gear pump, connected with impeller wheels installed in a condensate drain pipe. Gear pump (5 covers most of the cross-section of the condensate drain pipe, which reduces the performance of this pipe. In the event of a pump breakdown, condensate stops flowing into the pipe, since its cross-section is blocked by the pump and the malfunction is difficult to eliminate.

Closest to the invention is a device for removing condensate containing a condensate drain jg supply pipe with a suction head, a steam supply pipe and means for intensifying a condensate drain, consisting of a connecting pipe provided with a steam supply regulator i installed between the steam pipe and the steam pipe [2J.

I

Steam is supplied from the steam supply pipeline through a pipe with a nozzle to a condensate drain pipe, due to which a vacuum is created in the pipe. In this case, the condensate is sucked in by the suction head. This system is activated when the speed of the machine increases, _n and the siphon does not cope with the removal of condensate from the drying cylinder. However, for the effective removal of con, -. ' the densate tube with the nozzle must be turned on for a long time, since its productivity is small due to the small amount of ejection created in the space between the tube and the walls of the condensate drain pipe.

The purpose of the invention is to reduce energy consumption by increasing the rate of drainage of condensate.

This goal is achieved in that the means for intensifying the condensate drain of the device for removing 55 condensate from the drying cylinder, comprise its condensate drain pipe with a suction head, a steam inlet pipe and means for intensifying the condensate drain, consisting of a connecting pipe equipped with a steam regulator installed between the steam pipe and a condensate drain pipe, has an additional pipe installed coaxially with the condensate drain pipe with the formation of an ejection chamber with it, is closed th from the drying cylinder, which is attached to the connecting tube.

The drawing shows a device, General view.

The device comprises a steam supply pipe 1, a condensate drain pipe 2 with a suction head 3, and means for intensifying the removal of condensate, including ¹ 'pipe 4, one end of which is connected to the steam pipe 1, a flow regulator is installed on the pipe 4. pair 5.

The means for intensifying the condensate drain is provided with an annular chamber 6. The chamber 6 is mounted coaxially with the condensate drain pipe 2 and is rigidly connected to it. Second. · The end of the tube 4 is connected to the chamber 6. The ratio of the diameters of the chamber 6 to the pipe 2 is 1.15-1.75.

The operation of the device is as follows.

From the steam supply pipe, ’, through the pipe 4, steam is supplied to the annular chamber 6. In the gap between the condensate drain pipe 2 and the annular chamber 6, steam is concentrated under high pressure. Due to the small gap between the pipe 2 and the chamber 6, conditions are created for the ejection of steam at high speed. As a result of this, a vacuum is created, due to which the condensate is sucked off by the head 3.

With a ratio of diameters less than 1.15 _? the gap between the pipe 2 and the chamber 6 disappears. When the ratio is greater than 1.75 the caeor increases so much that the vacuum required to remove the condensate in a short period of time (almost instantly) is not created.

Compared to the prototype, working on the Arkhangelsk PPM by car

K-09, the proposed device provides an increase in the rate of condensate drain due to a larger area of the ejection flow created between the condensate drain pipe and the chamber.

Claims (1)

DEVICE FOR REMOVING CONDENSATE FROM DRYING CYLINDER, comprising a condensate drain pipe with a suction head, a steam supply pipe and means for intensifying <condensate drain, consisting of a connecting pipe equipped with a steam supply regulator installed between the steam pipe and the condensate drain pipe, such that in order to reduce energy consumption due to, increase the rate of condensate drain, the means for intensifying the condensate drain has an additional pipe mounted coaxially with ensatootvodnoy tube to form from it the ejecting chamber closed by the drying cylinder, which is attached to the connecting tube. SU_g »l 110844> 4., 1110844 2