Steam trap with built-in check valve water seal column

Abstract

The utility model relates to the field of steam trap valve, relate to a steam trap valve with built-in check valve water seal column, the utility model discloses a cylindrical water seal column, the water seal column includes the water inlet section and the drainage section that communicate upwards in proper order, the inside downside of drainage section is provided with sealed ball, sealed ball is located between water inlet section and drainage section, the inside diameter of water inlet section, sealed ball diameter and drainage section inside diameter increase setting in proper order, the bottom of water inlet section is equipped with condensed water inlet, the upper end of drainage section is provided with condensed water outlet, the junction of drainage section and water inlet section inner wall is provided with sealed slope, can effectively adapt to superheated steam, pressure fluctuation big etc. Complex working condition, prevent condensed water backflow, improve condensed water discharge efficiency.

Description

Technical Field

[0001] This utility model relates to the field of steam traps, and specifically to a water seal column with a built-in check valve for steam traps. Background Technology

[0002] In industrial production, steam systems are an indispensable and crucial component. Steam traps, as key components of steam systems, bear the important responsibility of removing condensate and preventing steam leakage. Inverted-bucket steam traps, with their unique working principle and structural features, have been widely used in steam systems. However, in actual operation, existing inverted-bucket steam traps have revealed several problems. In superheated steam systems, traditional water seal columns struggle to maintain a stable water seal, allowing superheated steam to easily approach the drain hole of the trap. When the trap discharges condensate, superheated steam is discharged along with it, resulting in significant energy waste, increased production costs, and reduced operating efficiency and energy utilization of the steam system.

[0003] Furthermore, in complex situations where the pressure of the main and branch steam pipes fluctuates frequently, and when multiple steam traps share the same condensate collection pipeline, there is a risk of backflow of condensate discharged from operating equipment. If condensate flows back into other shut-down equipment, it can cause serious problems such as corrosion and damage, affecting the safe and stable operation of the entire steam system and increasing equipment maintenance costs and repair frequency. Therefore, developing a key component for steam traps that can adapt to superheated steam environments, effectively cope with pipeline pressure fluctuations, and prevent condensate backflow has become a crucial issue that urgently needs to be addressed in the field of steam trap technology. Utility Model Content

[0004] To address the problems of the prior art, this utility model provides a water seal column with a built-in check valve for steam traps.

[0005] The objective of this utility model can be achieved through the following technical solution: A water seal column with a built-in check valve for a steam trap is installed inside a bucket within the steam trap. The water seal column includes a cylindrical water seal column, which comprises an inlet section and a drain section connected sequentially upwards. A sealing ball is provided on the lower side inside the drain section, and the sealing ball is located between the inlet section and the drain section. The inner diameter of the inlet section, the diameter of the sealing ball, and the inner diameter of the drain section are arranged to increase sequentially. A condensate inlet is provided at the bottom of the inlet section, and a condensate outlet is provided at the upper end of the drain section. A sealing slope is provided at the connection between the drain section and the inner wall of the inlet section.

[0006] In a further improvement, the condensate outlet is provided in several groups and arranged on the circumferential surface of the drainage section.

[0007] In a further improvement, the condensate outlets are provided in four sets and are evenly distributed along the circumference of the drainage section, and the bottom of the condensate outlets is higher than the top of the sealing ball when it is in the lowest position.

[0008] In a further improvement, the top of the drainage section extends through the water seal column to the outside, and a stop pin is provided at the top of the drainage section.

[0009] As a further improvement, the top of the water seal column is provided with a groove for use with tools.

[0010] In a further improvement, the sealing ball is a steel ball.

[0011] As a further improvement, the water seal column and the stop pin are made of stainless steel.

[0012] Compared with the prior art, the advantages of this utility model of steam trap with water seal column with built-in check valve are as follows:

[0013] The cylindrical water seal column is designed with an inlet section and a drain section. The difference in size between the sealing ball diameter and the inner diameter of the two sections, combined with gravity and pressure difference, achieves the backflow prevention function. At the same time, a sealing bevel is set at the connection between the drain section and the inlet section, which allows the sealing ball to form line contact with the sealing surface when it falls, further enhancing the sealing performance. Compared with the traditional structure, it can effectively adapt to complex working conditions such as superheated steam and large pressure fluctuations, prevent condensate backflow, improve condensate discharge efficiency, simplify the installation process, reduce installation and maintenance costs, and ensure the long-term stable operation of the steam trap. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the present invention.

[0015] Figure 2 A schematic diagram of the structure of the steam trap of this utility model.

[0016] In the diagram, 1-valve body, 2-valve cover, 3-valve core, 4-valve seat, 5-gasket, 6-connecting rod, 7-gasket, 8-lever, 9-bucket, 10-water seal column, 11-filter, 12-cover plate, 13-winding gasket, 101-inlet section, 102-drain section, 103-condensate inlet, 104-condensate outlet, 105-sealing ball, 106-stop pin, 107-groove. Detailed Implementation

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; unless otherwise expressly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, they can refer to fixed connections or detachable connections, etc. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0018] The following is a description of the embodiments and appendices. Figures 1-2 The technical solution of this utility model will be further described below.

[0019] Example 1

[0020] A water seal column with a built-in check valve for a steam trap is installed inside a bucket within the steam trap. The column includes a cylindrical water seal column 10, comprising an inlet section 101 and a drain section 102 connected sequentially upwards. A sealing ball 105 is located on the lower side of the drain section 102, between the inlet section 101 and the drain section 102. The inner diameter of the inlet section 101, the diameter of the sealing ball 105, and the inner diameter of the drain section 102 are sequentially increased. A condensate inlet 103 is located at the bottom of the inlet section 101, and a condensate outlet 104 is located at the upper end of the drain section 102. A sealing slope is provided at the connection between the drain section 102 and the inner wall of the inlet section 101.

[0021] like Figures 1-2 As shown, the working principle of this utility model is as follows:

[0022] The water seal column 10 is vertically installed inside the bucket of the steam trap. Under normal operating conditions, when condensate or steam enters the water seal column 10 from the condensate inlet 103, the liquid level gradually rises as the condensate flows in. When the liquid level reaches the sealing ball 105, the pressure of the condensate pushes the sealing ball 105 up. At this time, the condensate can then enter the drain section 102 through the opened channel and, under pressure, be discharged from the condensate outlet 104 into the steam trap.

[0023] When no condensate or steam enters, the sealing ball 105 falls under its own weight, accurately returning to the top of the inlet section 101, tightly sealing the channel and effectively preventing condensate backflow. This working process cleverly utilizes the gravity of the sealing ball 105 and the pressure difference of the condensate to achieve a check valve function. Compared with traditional water seal columns, it can better adapt to complex working conditions and avoid a series of problems caused by condensate backflow.

[0024] The designed sealing bevel allows the sealing ball 105 to form line contact with the sealing surface upon impact. When the sealing ball 105 contacts the sealing bevel, all the closing force is concentrated along the narrower sealing ring line. Compared to a planar seal, this line contact method generates greater sealing pressure, resulting in a better sealing effect. Furthermore, with repeated use, as the sealing ball 105 and the sealing bevel wear down, a more closely fitting contact surface gradually forms between them, further improving the sealing performance and extending the service life of the water seal column.

[0025] As a further preferred embodiment, the condensate outlet 104 is provided in several groups and arranged on the circumferential surface of the drainage section 102, which enables condensate to be discharged from multiple directions at the same time, greatly improving the discharge speed and efficiency of condensate.

[0026] As a further preferred embodiment, the condensate outlet 104 is provided in four sets and is evenly distributed along the circumference on the circumferential surface of the drainage section 102. The bottom of the condensate outlet 104 is higher than the top of the sealing ball 105 when it is in the lowest position. When the sealing ball 105 falls down and seals the top of the water inlet section 101, it can effectively prevent condensate from flowing back from the outlet to the water inlet section 101, further enhancing the backflow prevention effect.

[0027] As a further preferred embodiment, the top of the drainage section 102 extends through the water seal column 10 to the outside, allowing the sealing ball 105 to be easily inserted into the drainage section 102 from the top. A stop pin 106 is provided at the top of the drainage section 102. The stop pin 106 plays a key limiting role. When the sealing ball 105 is subjected to greater pressure, the stop pin 106 can prevent the sealing ball 105 from being pushed out to the outside of the water seal column 10, ensuring that the sealing ball 105 always works normally within the drainage section 102.

[0028] As a further preferred embodiment, the top of the water seal column 10 is provided with a groove 107 for use with tools. During installation, simply use a flathead screwdriver or a special tool to align with the groove 107, and the water seal column 10 can be easily screwed into the valve body cavity of the inverted bucket steam trap. The operation is simple and convenient, making the assembly of the steam trap more convenient and quick, and facilitating later maintenance and replacement.

[0029] As a further preferred embodiment, the sealing ball 105 is a steel ball, and the water seal column 10 and the stop pin 106 are made of stainless steel. The steel ball has high strength, high hardness, and good wear resistance, enabling it to maintain a stable shape and performance during long-term operation, ensuring a sealing effect. Stainless steel has excellent corrosion resistance, effectively resisting corrosion from steam and condensate, extending the service life of the water seal column and stop pin, reducing equipment maintenance costs and replacement frequency, and ensuring the long-term stable operation of the steam trap in complex working environments.

[0030] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A water seal column with a built-in check valve for a steam trap, disposed inside a bucket within the steam trap, characterized in that, The device includes a cylindrical water seal column, comprising an inlet section and a drain section connected sequentially upwards. A sealing ball is disposed on the lower side inside the drain section, located between the inlet section and the drain section. The inner diameter of the inlet section, the diameter of the sealing ball, and the inner diameter of the drain section are arranged to increase sequentially. A condensate inlet is provided at the bottom of the inlet section, and a condensate outlet is provided at the upper end of the drain section. A sealing slope is provided at the connection between the inner wall of the drain section and the inlet section.

2. A water seal column with a built-in check valve for a steam trap according to claim 1, characterized in that, The condensate outlets are provided in several groups and arranged on the circumference of the drainage section.

3. A water seal column with a built-in check valve for a steam trap according to claim 2, characterized in that, The condensate outlets are provided in four sets and are evenly distributed along the circumference of the drainage section. The bottom of the condensate outlet is higher than the top of the sealing ball when it is in the lowest position.

4. A water seal column with a built-in check valve for a steam trap according to claim 1, characterized in that, The top of the drainage section extends through the water seal column to the outside, and a stop pin is provided at the top of the drainage section.

5. A water seal column with a built-in check valve for a steam trap according to claim 1, characterized in that, The top of the water seal column is provided with a slot for use with tools.

6. A water seal column with a built-in check valve for a steam trap according to claim 1, characterized in that, The sealing ball is a steel ball.

7. A water seal column with a built-in check valve for a steam trap according to claim 4, characterized in that, The water seal column and the stop pin are made of stainless steel.

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