Novel self-reduction type drain valve

Abstract

The utility model relates to the technical field of drain valves, in particular to a novel self-restoring drain valve. A novel self-reduction type drain valve comprises a drain valve body, the drain valve body comprises a tank body, a steam inlet is formed in the top of the tank body, a steam outlet is formed in the upper portion of the side wall of the tank body, a drain outlet is formed in the lower portion of the side wall of the tank body, a partition plate is arranged in the tank body, a water permeable hole is formed in the middle of the partition plate, and a vertically-arranged through core rod is arranged below the partition plate. And a cylindrical floating ball is arranged above the through core rod. The drain valve is simple in structure, convenient to use and low in cost, condensate water can be discharged in time and high-quality steam can be reserved for use through cooperative work of the tank body, the through core rod and the floating ball, damage of a water hammer to pipelines and equipment is avoided, energy waste is reduced, and the using effect of the drain valve is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of steam traps, and particularly relates to a novel self-restoring steam trap. Background Art

[0002] At present, in industrial equipment that uses long steam pipelines and steam, condensate is often discharged through steam traps. However, existing steam traps have problems such as complex structure, easy corrosion, and high cost. Especially for some large equipment, since large equipment has a large amount of accumulated condensate and a high daily discharge volume, the steam trap needs to be operated all the time. When the steam trap is damaged, the cost of repair and replacement is high, which makes it difficult to meet the user's needs. Utility Model Content

[0003] The purpose of the utility model is to provide a novel self-restoring steam trap to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0005] A novel self-restoring steam trap comprises a steam trap body, characterized in that the steam trap body comprises a cylindrical tank body, a steam inlet is arranged at the top of the tank body, a steam outlet is arranged at the upper part of the side wall of the tank body, and a sewage outlet is arranged at the lower part of the side wall of the tank body;

[0006] A partition is provided in the tank body, and a water permeable hole is provided in the middle of the partition;

[0007] A vertically arranged core rod is provided below the partition, and an opening for passing the lower part of the core rod is provided on the bottom wall of the tank body, and a through hole penetrating the entire core rod is provided in the middle of the core rod;

[0008] A cylindrical float is provided above the core rod, and the upper surface of the float is set at a height lower than the steam outlet. A columnar groove for extending into the upper part of the core rod is provided on the lower middle side of the float, and the width of the columnar groove is greater than the width of the core rod.

[0009] Furthermore, the tank body, the core rod and the float are all made of stainless steel.

[0010] Furthermore, the outer surface of the float is coated with a Teflon coating.

[0011] Furthermore, a fixing pad is provided on the top wall of the columnar groove, and a protrusion is provided at the lower part of the fixing pad, and the protrusion is in the shape of an inverted cone.

[0012] Furthermore, the tank body includes an upper tank and a lower tank, the lower inner wall of the upper tank is provided with an internal thread, the upper outer wall of the lower tank is provided with an external thread matching the internal thread, and the upper tank and the lower tank are connected by threads.

[0013] Furthermore, a sealing rubber ring is provided at the connection between the upper tank and the lower tank.

[0014] Furthermore, a liquid injection port is provided on the upper portion of the float, and a sealing cover is provided at the liquid injection port.

[0015] The beneficial effects of the utility model are as follows: a new self-restoring steam trap is provided, which has a simple structure, is easy to use and has low cost; through the cooperation of the tank body, the core rod and the float, the condensate can be discharged in time, and the use of high-quality steam is retained, thereby solving the problem of water hammer damage to pipelines and equipment, reducing energy waste and ensuring the use effect of the steam trap.

[0016] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A partial structural schematic diagram of the utility model is shown;

[0019] Figure 2 A partial structural cross-sectional schematic diagram of the utility model is shown.

[0020] In the figure: 1. tank body; 2. steam inlet; 3. steam outlet; 4. sewage outlet; 5. core rod; 6. float; 7. fixing pad; 8. sealing rubber ring; 9. through hole; 10. lower tank; 11. upper tank; 12. partition. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-2 As shown, a novel self-restoring steam trap comprises a steam trap body, which comprises a cylindrical tank body 1, a steam inlet 2 is provided on the top of the tank body 1, a steam outlet 3 is provided on the upper part of the side wall of the tank body 1, and a sewage outlet 4 is provided on the lower part of the side wall of the tank body 1; a partition 12 is provided in the tank body 1, and a water permeable hole is provided in the middle part of the partition 12; a vertically arranged core rod 5 is provided below the partition 12, a vertically arranged core rod 5 is provided on the inner side of the tank body 1, and an opening for passing the lower part of the core rod 5 is provided on the bottom wall of the tank body 1, and a through hole 9 that runs through the entire core rod 5 is provided in the middle part of the core rod 5; a cylindrical float 6 is provided above the core rod 5, and the setting height of the upper surface of the float 6 is lower than the setting height of the steam outlet 3, and a columnar groove for extending into the upper part of the core rod 5 is provided on the middle side of the lower part of the float 6, and the width of the columnar groove is greater than the width of the core rod 5. This design has a simple structure, is easy to use, and has low cost. Through the cooperation of the tank body 1, the core rod 5 and the float 6, the condensate can be discharged in time, and the use of high-quality steam is retained, which solves the damage of water hammer to pipelines and equipment, reduces energy waste, and ensures the use effect of the steam trap.

[0023] The tank body 1, the core rod 5 and the float 6 can all be made of stainless steel, so that the tank body 1, the core rod 5 and the float 6 have better high temperature resistance and corrosion resistance, thereby improving the service life of the steam trap.

[0024] In order to facilitate the upward and downward movement of the float ball 6 in the tank body 1 , a Teflon coating is coated on the outer surface of the float ball 6 .

[0025] A fixing pad 7 is provided on the top wall of the columnar groove, and a protrusion is provided at the bottom of the fixing pad 7. The protrusion is in an inverted cone shape, so that the middle through hole 9 of the core rod 5 can be blocked by the fixing pad 7 and the protrusion, thereby improving the sealing performance of the steam trap when the condensate is not discharged, thereby ensuring the use effect of the steam trap. The fixing pad 7 can be made of heat-resistant rubber, and the protrusion and the fixing pad 7 adopt an integrated structure.

[0026] The tank body 1 comprises an upper tank 11 and a lower tank 10. An internal thread is arranged on the lower inner wall of the upper tank 11, and an external thread matching the internal thread is arranged on the upper outer wall of the lower tank 10. The upper tank 11 and the lower tank 10 are connected by threads to facilitate the disassembly and assembly between the upper tank 11 and the lower tank 10, thereby facilitating the maintenance and replacement of the core rod 5 and the floating ball 6 inside the tank body 1. In order to ensure the sealing effect of the tank body 1, a sealing rubber ring 9 is arranged at the connection between the upper tank 11 and the lower tank 10.

[0027] A liquid injection port is provided on the upper part of the float 6, and a sealing cover is provided at the liquid injection port, so that liquid can be added from the liquid injection port to adjust the weight of the float 6, so that the float 6 can be stably placed above the core rod 5, and the float 6 and the sealing cover are connected by threads.

[0028] The sewage outlet 4 is detachably connected with a sealing plug so as to close the sewage outlet 4 through the sealing plug. When sewage needs to be discharged, the sealing plug can be pulled out for cleaning and sewage discharge, and the sealing plug can be made of rubber.

[0029] When this design is in use, steam mixed with condensed water enters the tank body 1 from the steam inlet 2, and the tank body 1 is divided into a steam chamber and a condensed water chamber arranged upper and lower by the partition 12, which not only realizes the separation of steam and water, but also reduces the influence of debris. The steam is continuously discharged from the steam outlet 3 of the steam chamber, and the condensed water enters the condensed water chamber through the water-permeable holes on the partition 12, and then goes down to the bottom of the tank body 1 along the gap between the tank body 1 and the float 6 and the inner wall of the tank body 1. When the water level of the condensed water rises to the top of the core rod 5 and the float 6 is lifted, the condensed water is discharged from the through hole 9 in the middle of the core rod 5 under the action of steam pressure. After the condensed water is discharged, the water level of the condensed water drops, and the float 6 falls, which seals the core rod 5, thereby achieving an energy-saving effect.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A novel self-restoring steam trap, comprising a steam trap body, characterized in that: The steam trap body comprises a cylindrical tank body, the top of the tank body is provided with a steam inlet, the upper part of the side wall of the tank body is provided with a steam outlet, and the lower part of the side wall of the tank body is provided with a sewage outlet; A partition is provided in the tank body, and a water permeable hole is provided in the middle of the partition; A vertically arranged core rod is provided below the partition, and an opening for passing the lower part of the core rod is provided on the bottom wall of the tank body, and a through hole penetrating the entire core rod is provided in the middle of the core rod; A cylindrical float is provided above the core rod, and the upper surface of the float is set at a height lower than the steam outlet. A columnar groove for extending into the upper part of the core rod is provided on the lower middle side of the float, and the width of the columnar groove is greater than the width of the core rod.

2. A novel self-restoring steam trap as claimed in claim 1, characterized in that: The tank body, the core rod and the float are all made of stainless steel.

3. A novel self-restoring steam trap as claimed in claim 1, characterized in that: The outer surface of the float is coated with a Teflon coating.

4. A novel self-restoring steam trap as claimed in claim 1, characterized in that: A fixing pad is arranged on the top wall of the columnar groove, and a protrusion is arranged at the lower part of the fixing pad, and the protrusion is in an inverted cone shape.

5. A novel self-restoring steam trap as claimed in claim 1, characterized in that: The tank body comprises an upper tank and a lower tank. An inner thread is arranged on the lower inner wall of the upper tank, and an outer thread matching the inner thread is arranged on the upper outer wall of the lower tank. Thus, the upper tank and the lower tank are connected by threads.

6. A novel self-restoring steam trap as claimed in claim 5, characterized in that: A sealing rubber ring is provided at the connection between the upper tank and the lower tank.

7. A novel self-restoring steam trap as claimed in claim 1 or 5, characterized in that: A liquid injection port is arranged on the upper part of the float, and a sealing cover is arranged at the liquid injection port.

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