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Condensate discharge device

A discharge device and condensate technology, applied in steam/steam condensers, steam traps, mechanical equipment, etc., can solve problems such as time required for start-up, steam leakage, and reduced drainage capacity during start-up

Active Publication Date: 2019-12-03
Z ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In general, the amount of drainage passing through the throttle (discharge capacity of the throttle) is determined by the pressure difference and the hole diameter of the throttle. reduce such problems
[0011] For example, in the case of applying to steam heating equipment (system) with large fluctuations in drainage discharge, multi-stage throttles with the same diameter cannot follow the drainage fluctuations from startup to stabilization. About half of the internal discharge capacity, the orifice cannot be completely sealed and steam leakage occurs
On the other hand, in order to prevent the leakage of steam and ensure the stable drainage performance of the stable drainage, it is necessary to reduce the drainage capacity of the startup drainage, so there is a problem that the startup takes time.
[0012] In addition, the prior art described in Cited Documents 2 and 3 loses the advantages of a throttling condensate discharge device that does not require movable parts, and in addition to the above-mentioned problems, there are also problems of reduced durability and maintainability.
[0013] That is, the prior art disclosed in the cited documents 1 to 3 can all be applied (corresponding) to orifices of the same diameter and the variation range of the drainage discharge is small (usually up to 50% of the maximum discharge), so the throttling discharge The capacity cannot sufficiently follow the increase and decrease of the drainage from the startup to the steady state. As a result, it is necessary to change the hole diameter of the orifice according to the drainage discharge amount, or it takes time to start up until the steady state is reached.

Method used

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Examples

Experimental program
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Embodiment approach 1

[0037] Hereinafter, one embodiment of the condensate discharge device of the present invention will be described with reference to the drawings. here, figure 1 It is a schematic diagram showing the structure of the condensate discharge device of this embodiment, figure 2 is a schematic diagram showing the structure of the throttle plate, image 3 is a schematic diagram showing the steady state of the condensate drain, Figure 4 It is a schematic diagram showing the activated state of the condensate discharge device.

[0038] The condensate discharge device of this embodiment is used in various steam heating equipment that uses steam as a heat source, such as heat exchangers, dryers, refrigeration and heating equipment, in order to minimize the leakage of steam and remove the condensation from the equipment. The condensate is used as liquid, installed in the rear stage (downstream side) of steam heating equipment not shown, and a throttle part is provided in the middle of t...

Embodiment 1-1

[0058] The diameter of the orifice 11h is set: φ1.0mm, the thickness of the throttle plate 12P: 1.0mm, the opening diameter of the pressure reducing plate 14P: φ14.0mm, the thickness of the pressure reducing plate 14P: 1.0mm, the throttle part When the number of stages N: 16 stages (axial length: 32 mm), the same drain discharge rate as that of φ0.5 mm × 4 stages (axial length: 48 mm) of the conventional condensate discharge device was obtained in a stable state. Furthermore, it was confirmed that in the condensate discharge device of the present embodiment, with respect to the increase and decrease of the drain DR from the start-up state to the steady state, the drain DR can be discharged stably and smoothly without causing steam leakage (especially, even for Sudden increase in drainage, such as when starting up, can be handled smoothly). On the other hand, in the condensate discharge device of the conventional configuration, clogging and an increase in start-up time due to l...

Embodiment 1-2

[0062] The diameter of the orifice 11h is set: φ1.5mm, the thickness of the throttle plate 12P: 1.0mm, the opening diameter of the pressure reducing plate 14P: φ14.0mm, the thickness of the pressure reducing plate 14P: 1.0mm, the throttle part Number of stages N: When 20 stages (axial length: 40mm), the same drainage discharge volume as that of φ0.7mm×4 stages (axial length: 48mm) of the conventional condensate discharge device was obtained in a stable state. Furthermore, it was confirmed that in the condensate discharge device of the present embodiment, with respect to the increase and decrease of the drain DR from the start-up state to the steady state, the drain DR can be discharged stably and smoothly without causing steam leakage (especially, even for the start-up It can also cope with the sudden increase of drainage from time to time). On the other hand, in the condensate discharge device of the conventional configuration, clogging and an increase in start-up time due to...

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Abstract

The invention provides a condensate discharge device and a condensate discharge method which have excellent adaptability against increase and decrease of a drain discharge amount while preventing clogging of an orifice hole. The condensate discharge device has orifice units each having an orifice and a pressure reducing chamber provided on the downstream side of the orifice, and is formed by arranging the orifice units in series in multi stages. Each orifice unit (10U) is constituted by: an orifice plate (12P) which has an orifice hole (11h) with a diameter of at least 1 mm and is formed in athin plate shape; and a pressure reducing plate (14P) which has the same thickness as the orifice plate (12P) and has a pressure-reducing chamber (14S) formed therein, wherein the orifice holes (11h)adjacent to each other in the axial direction are formed by being arranged to be radially deviated from each other.

Description

technical field [0001] The present invention relates to a condensate discharge device. Specifically, it relates to a device for condensing steam released from latent heat, which is installed in steam transfer pipes such as steam pipes, or steam heating equipment such as heat exchangers, dryers, and refrigeration and heating equipment. The condensate (steam condensate) is discharged and removed through the throttling part of the throttling condensate discharge device. Background technique [0002] Conventionally, it has been known to incorporate a device set to discharge condensate at a predetermined pressure (hereinafter, Also known as the throttling condensate discharge device of the throttling part of the drain). In such a throttling condensate discharge device, it is necessary to set the diameter of the throttle part to be smaller (for example, φ0.5mm) than the valve-type condensate discharge device according to the predetermined discharge flow rate of drain water. Ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16T1/00
CPCF16T1/34F28B9/08
Inventor 村上仁士东野达哉
Owner Z ENG CO LTD