Steam Separator Design for Pulp Production Pressure Drop Reduction
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Solution Overview
Problem
Existing steam separators in pulp production cause pressure drops and are costly, difficult to maintain, and disrupt existing production lines during installation.
Innovation Solution
A steam separator design comprising a first flow pipe inserted into a second flow pipe with a larger diameter, featuring steam transport tubes angled to the manifold pipe, and optionally including a throttling mechanism to enhance steam separation without creating a significant pressure drop.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a steam separator is installed in the flow line to separate steam from cellulosic material, then steam separation efficiency is improved, but pressure drop increases
Solution Approach 1:
The first flow pipe is inserted into the second flow pipe, creating a nested structure where the separation mechanism is contained within the existing flow line. This allows steam separation without requiring a separate parallel system, minimizing pressure drop while maintaining separation efficiency.
Solution Approach 2:
Steam is extracted from the main flow through the steam transport pipe that connects to the steam space between the first and second flow pipes. The steam transport pipe includes an opening that allows steam to be removed from the mixture while cellulosic material continues through the main flow line with minimal resistance.
2Reliability
If a complex steam separator system is installed to achieve efficient steam separation, then steam separation efficiency is improved, but device complexity and maintenance cost increase
Solution Approach 1:
The second flow pipe serves multiple functions: it provides structural support, creates the steam collection space, and maintains the flow line integrity. The first flow pipe simultaneously transports the main flow and defines the steam separation zone, reducing the need for additional components.
Solution Approach 2:
The steam separator is divided into distinct functional zones: the first flow pipe for main flow transport, the annular steam space for steam collection, and the steam transport pipe for steam removal. This segmentation allows each component to be simple in design while collectively achieving efficient separation.
3Reliability
If a steam separator is installed in an existing production line to separate steam, then steam separation is achieved, but production capacity is reduced due to installation disruption
Solution Approach 1:
The steam separator components are nested within the existing flow line structure, allowing installation without replacing the entire production line. The first flow pipe is inserted into the second flow pipe, which can be done with minimal disruption to the surrounding production equipment.
Solution Approach 2:
The steam separator is designed to be pre-assembled as a compact unit with the first and second flow pipes already positioned relative to each other. This preliminary assembly allows for quick installation in the existing production line, minimizing downtime and maintaining production capacity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Efficient steam separation with minimal pressure loss, easy installation, and reduced maintenance costs, maintaining production line integrity.
Implementation Method 1
steam, which is contained in a mixture of fluid and cellulosic materials that flows in a pipe, expands more quickly when this flow mixture leaves a first pipe with one diameter and enters a second pipe with a larger diameter
Implementation Method 2
steam can flow a distance in an upstream direction (i.e. towards the first end of the second flow tube) and into said at least one steam entrance opening
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a steam separator (10; 20) for separating steam from a flow of fluid and cellulosic material, comprising: a first flow tube (11; 21) comprising a first end (11A; 21A), a second end (11B; 21B) and a wall with an outer circumference, which has a first diameter (D1); a second flow tube (12; 22) comprising a first end (12A; 22A), a 5second end (12B; 22B) and a wall with an inner circumference, which, in at least a first length portion (16; 26), has a second diameter (D2), which is larger than the first diameter (D1); and at least one steam transport pipe (13, 14; 23, 24), each of which having a steam entrance opening (13A, 14A; 23A, 24A), which is arranged as a through-hole through the wall of the second flow tube (12; 22), wherein the flow tube (11; 21) is inserted a distance 10(L) into the first length portion (16; 26) of the second flow tube (12; 22) such that the second end (11B; 21B) of the first flow tube (11; 21) is located downstream of the first end (12A; 22A) of the second flow tube (12; 22), said at least one steam entrance opening (13A, 14A; 23A, 24A) being arranged within said distance (L), whereby there is a gap provided between the outer circumference of the first flow tube (11; 21) and the inner 15circumference of the second flow tube (12; 22) in said first length portion (16; 26).