JPS63318396A - Condensate discharger - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is installed in a steam transfer pipe such as a steam distribution line or a steam equipment such as a heat exchanger, a dryer, or an air conditioner, so that a part of the steam is condensed. The present invention relates to a condensate discharge device for removing liquid or condensate.

[Prior Art] As this type of condensate removal device, one in which an orifice is provided in a cylindrical body has been proposed. When such a removal device is attached to steam equipment, condensate is discharged from the equipment through an orifice due to steam pressure.

By the way, what is desired for this type of removal device is that it should be able to sufficiently remove the generated drainage, that there will be little leakage of steam, and that it should be able to remove scale or foreign matter such as metal powder, rust, dust, etc. that may be generated during the installation of the device or pipes. the orifice. However, it is difficult to realize a drain removal device that satisfies all of these conditions.For example, the present inventor has proposed Utility Model Application No. 58-93142, but it does not completely satisfy these conditions. , this proposed drain removal device has orifices arranged in multiple stages so that the pressure difference between the inlet and outlet is shared between these orifices, thereby reducing steam leakage even if the orifice diameter is increased. This has the effect of However, this device also has the problem that it cannot adequately handle the large amount of drain generated.

In order to solve this problem, the present applicant filed a U.S. Patent Application No. 62-226
In No. 53, a cylindrical body attached to steam equipment;
It consists of an orifice structure built into the main body, and a partition similarly built in at a predetermined interval on the upstream side of the orifice structure, and a plurality of orifices are formed in the orifice structure. , the partition body covers a predetermined part of the interior of the cylindrical body, so that a large amount of condensate can be removed with one discharge device, and the orifice can be prevented from being clogged with foreign matter, and the steam can be discharged in an i1M manner. We are proposing a condensate discharge device that reduces the amount of condensate.

Although this proposal itself is effective, it is difficult to adjust to large changes in the drain group to be discharged.
Therefore, there were restrictions on the range of discharge capacity. In other words, it was necessary to separately prepare a device suitable for the amount of drain.

[Object of the Invention] Accordingly, an object of the present invention is to provide a condensate discharge device that can remove any amount of condensate generated with one device and has extremely little steam leakage.

[Structure of the Invention] The condensate discharge device according to the present invention includes a gate valve casing attached to a steam device, a valve body that partitions a flow path of the casing, and an orifice structure installed adjacent to the valve body. A plurality of orifices are formed in the orifice structure.

[Operations and Effects of the Invention] In this device, the lift of the valve body is changed to match the meteor of condensate to partition the flow path, and the number of openings of the orifice is changed to discharge the condensate through the orifice. 6. The orifice structure installed close to the valve body can be installed upstream of the valve body, downstream of the valve body, or upstream and downstream. There is a mode in which it is provided on both sides, and a mode in which it is provided in two or more places. According to the device of the present invention, it can be easily installed in places where the flow rate of condensed WI liquid changes greatly or in steam equipment where the flow rate is not accurately known, and can be used under suitable conditions by subsequent adjustment. When there is no flow of condensate, the valve body can be fully closed and act as a shutoff valve.

[Preferred embodiment B] When carrying out the present invention, it is preferable that the casing, valve body, orifice structure, etc. be made of non-Mm.

In carrying out the present invention, it is preferable that each orifice has the same diameter and is formed symmetrically with respect to a perpendicular line passing through the axis and a horizontal line, and in a Kasama marsh.

[Example] The present invention will be described in detail below with reference to the drawings.

In FIGS. 1 and 2, the condensate discharge device consists of a horizontally disposed gate valve, generally designated by the reference numeral 1, and an orifice structure 7 installed in the flow path 3 of the gate valve 1. ing.

The gate valve 1 is a JIS standard product or an equivalent product, and consists of a casing 2 and a valve body 4 that partitions off a flow path 3 with a circular cross section in the casing 2 from above, and the valve body 4 is formed in the casing 2. It is housed in a recess 5 and lifted by a valve stem 6. In the illustrated example, the gate valve 1 is attached directly or indirectly to steam equipment or piping by means of flanges 2a and 2b, with the arrow side facing upstream.

The orifice structure 7 has a downstream wall 8 forming the recess 5.
The casing 2 is provided close to and preferably in close contact with the casing 2, and is fixed to the casing 2 with the upper side slightly inclined toward the downstream side. In this orifice structure 7, six orifices 8, 8, . The casing 2, the valve body 4, and the orifice structure 7 are all made of stainless steel (for example, stainless steel).
Next, the effect will be explained.

FIG. 2 shows a state in which the valve body 4 is lifted by about 1/3 of the total lift depending on the flow rate of the i-infusion. Is it 1i in this state? The i-liquid flows horizontally along the bottom surface of the channel 3 along with some steam. Therefore, stiff tl? ia passes through the lower part not blocked by the valve body 4, and the two orifices 8
．． 8 and is discharged. Since the steam is located relatively high in the flow path 3, its flow is blocked by the valve body 4. Therefore, very little steam escapes.

When the flow rate of condensate is large, the valve body 4 is further lifted and discharged from the first and second stage orifices 8.8..., and when the flow rate is at its maximum, the valve body 4 is lifted to the position indicated by the chain line. death,
Discharge from all orifices 8.8... In addition,
When the flow rate is zero, the lift of the valve body 4 is set to zero, the flow path 3 is cut off, and the valve element 4 can function as a cutoff valve.

FIGS. 4 and 5 show other embodiments of the present invention. 4 shows an embodiment in which the orifice structure 7 is provided upstream of the valve body 4, and in FIG. 5 the orifice structure 7.7 is provided upstream and downstream of the valve body 4. The manner in which it is provided is shown.

[Summary] As explained above, according to the present invention, the flow path is partitioned from above by the valve body according to the flow rate of the condensate, the condensate is discharged from the orifice, and leakage of steam is reliably prevented by the valve body. be able to.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view taken along line A-A in FIG. 1 showing the valve in the open state, and FIG. 3 is the valve in the open state in FIG. The side view, FIG. 11, and FIG. 5 are side sectional views showing another type B of the present invention.

Claims (1)

[Claims] The gate valve consists of a gate valve casing attached to steam equipment, a valve body that partitions a flow path of the casing, and an orifice structure installed adjacent to the valve body, and the orifice structure has a plurality of orifices. A condensate discharge device characterized in that it is formed.