CN217422910U

CN217422910U - Automatic steam trap

Info

Publication number: CN217422910U
Application number: CN202221021903.4U
Authority: CN
Inventors: 栾晓飞; 刘宝军; 赵坤超; 郑洪松; 宫蓬波; 周伟; 胡修新
Original assignee: SEPCO3 Electric Power Construction Co Ltd
Current assignee: SEPCO3 Electric Power Construction Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-09-13
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses an automatic steam trap, be hollow valve body, case and valve rod including inside, the valve rod includes and is made the upper portion valve rod of taking the screw thread, the middle part valve rod of making by the great material of coefficient of thermal expansion and makes the lower part valve rod, the bottom and the case coaxial coupling of lower part valve rod by common material preparation. The utility model discloses effectively solve the comdenstion water emission problem among the steam transport, use the material that thermal expansion volume is big with the middle part valve rod to make, after the comdenstion water does not have the valve rod of lower part to reach the middle part valve rod like this, will receive the influence of comdenstion water, middle part valve rod temperature reduces, the material shrink, the case of pulling lower part moves up, automatically, open the valve, the comdenstion water will be got rid of from the valve, in the operation process, the comdenstion water of production will be got rid of by the valve is automatic, do not need artificial intervention, and simultaneously, because the comdenstion water can form the water seal with the exit, can not cause steam leakage at the drainage in-process.

Description

Automatic steam trap

Technical Field

The utility model relates to a valve part technical field specifically is an automatic steam trap.

Background

In steam transportation process, because the steam that receives the environmental impact to cause in the pipeline is because the difference in temperature influences, forms a certain amount of comdenstion water, at this moment need in time discharge the comdenstion water, otherwise excessive comdenstion water gathering in the pipeline, will further lead to the difference in temperature too big, and steam becomes the comdenstion water in a large number, causes steam transport efficiency to descend, and the loss increases.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic steam trap to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an automatic steam trap, is hollow valve body, case and valve rod including inside, the valve rod includes and is taken the screwed upper portion valve rod by common material preparation, the middle part valve rod of making by the great material of coefficient of thermal expansion and makes the lower part valve rod by common material, the bottom of lower part valve rod with case coaxial coupling.

Preferably, an inlet pipe is arranged on the outer wall of one side of the valve body.

Preferably, the valve body is provided with a valve core groove at the center of the bottom.

Preferably, the bottom of the valve body is connected with an outlet pipe, and the outlet pipe is communicated with the inside of the valve core groove.

Preferably, the valve core groove is matched with the valve core in size, and the valve core groove and the valve core are in clamping fit.

Preferably, a hand wheel is coaxially connected to the top of the upper valve rod.

Preferably, an anti-slip outer sleeve is arranged on the outer wall of the hand wheel and is made of rubber or silica gel.

Compared with the prior art, the beneficial effects of the utility model are that: in this automatic steam trap, effectively solve the comdenstion water emission problem among the steam transport, use the material that thermal expansion volume is big with the middle part valve rod and make, after the comdenstion water surpassed the valve rod of lower part and reachs the middle part valve rod like this, will receive the influence of comdenstion water, middle part valve rod temperature reduces, the material shrink, the case upward movement of pulling lower part, the valve is opened automatically, the comdenstion water will be got rid of from the valve, the operation in-process, the comdenstion water of production will be got rid of by the valve is automatic, do not need artificial intervention, and simultaneously, because the comdenstion water can form the water seal with the exit, can not cause steam leakage at the drainage in-process.

Drawings

Fig. 1 is a schematic sectional structure of the present invention;

fig. 2 is a schematic diagram of the structure of the valve rod of the present invention.

The meaning of the various reference symbols in the drawings:

1. a valve body; 2. a hand wheel; 3. an inlet pipe; 4. an outlet pipe; 5. an upper valve stem; 6. a middle valve stem; 7. a lower valve stem; 8. a valve core; 9. a valve stem bore; 10. a valve stem; 11. a valve core groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Example 1

An automatic steam trap, as shown in fig. 1 and 2, comprises a hollow valve body 1, a valve core 8 and a valve rod 10, wherein the valve rod 10 comprises an upper valve rod 5 made of common material and provided with threads, a middle valve rod 6 made of material with larger thermal expansion coefficient and a lower valve rod 7 made of common material, the bottom of the lower valve rod 7 is coaxially connected with the valve core 8, the problem of condensate water discharge in steam conveying is effectively solved, the middle valve rod 6 is made of material with large thermal expansion amount, thus when the condensate water reaches the middle valve rod without passing through the lower valve rod, the condensate water is influenced, the temperature of the middle valve rod 6 is reduced, the material shrinks, the valve core at the lower part is pulled to move upwards, the valve is automatically opened, the condensate water is discharged from the valve, and the produced condensate water can be automatically discharged by the valve without human intervention during operation, meanwhile, the condensed water and the outlet can form a water seal, so that steam leakage cannot be caused in the drainage process.

Further, an inlet pipe 3 is arranged on the outer wall of one side of the valve body 1.

Specifically, the valve body 1 is provided with a valve core groove 11 at the center of the bottom, the bottom of the valve body 1 is connected with an outlet pipe 4, the outlet pipe 4 is communicated with the inside of the valve core groove 11, the valve core groove 11 is matched with the valve core 8 in size, and the two are clamped and matched.

In addition, the top coaxial coupling of upper portion valve rod 5 has hand wheel 2, is provided with anti-skidding overcoat on the outer wall of hand wheel 2, and anti-skidding overcoat adopts rubber or silica gel material to make, increases the moment of torsion through the hand wheel 2 that sets up, uses manpower sparingly, and is provided with anti-skidding overcoat on the outer wall of hand wheel 2 and improves anti-skidding effect.

The utility model discloses an automatic steam trap's theory of operation:

when there is not the comdenstion water, steam is whole valve rod in the high temperature section when normally carrying, and at this moment middle part valve rod 6 is in the expanding state, and case 8 is closed the valve, and when there is the comdenstion water, the comdenstion water is behind lower part valve rod 7, and the water level will reach middle part valve rod 6 department, and middle part valve rod 6 will receive the cooling effect shrink of comdenstion water, drives case 8 up motion, and the valve is opened, and the comdenstion water is got rid of from outlet pipe 4, and after the comdenstion water was discharged, middle part valve rod 6 receives the steam action once more, and the valve is closed to the inflation once more.

Because steam conveying is generally under the high-pressure state of several megapascals, the temperature of condensed water is generally not 100 ℃, so the height of the valve can be adjusted, the valve can be conveniently closed at any time, and the height of the valve core can be adjusted according to different conveying temperatures and pressures.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only the preferred embodiments of the present invention, and is not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An automatic steam trap, characterized in that: be hollow valve body (1), case (8) and valve rod (10) including inside, valve rod (10) are including being makeed upper portion valve rod (5) of taking the screw thread, middle part valve rod (6) of being made by the great material of coefficient of thermal expansion and making lower part valve rod (7) by common material preparation, the bottom of lower part valve rod (7) with case (8) coaxial coupling.

2. The automatic steam trap as recited in claim 1 wherein: an inlet pipe (3) is arranged on the outer wall of one side of the valve body (1).

3. The automatic steam trap of claim 1 wherein: the valve body (1) is provided with a valve core groove (11) at the center of the bottom.

4. The automatic steam trap as recited in claim 3 wherein: the bottom of the valve body (1) is connected with an outlet pipe (4), and the outlet pipe (4) is communicated with the inside of the valve element groove (11).

5. The automatic steam trap as recited in claim 3 wherein: the valve core groove (11) is matched with the valve core (8) in size, and the valve core groove and the valve core are in clamping fit.

6. The automatic steam trap of claim 1 wherein: the top of the upper valve rod (5) is coaxially connected with a hand wheel (2).

7. The automatic steam trap as recited in claim 6 wherein: an anti-slip outer sleeve is arranged on the outer wall of the hand wheel (2), and the anti-slip outer sleeve is made of rubber or silica gel.