Corrosion-resistant drain valve

Abstract

The utility model relates to the technical field of drain valves, in particular to a corrosion-resistant drain valve, which improves the sealing performance of a shell, reduces the corrosion of equipment parts, improves the use reliability and improves the cleaning and maintenance convenience in the shell. Comprising a shell and an inlet, and the inlet is formed in the outer side wall of the shell in a communicating mode; the discharging barrel is arranged on the lower portion of the outer side wall of the shell in a communicating mode, the bottom end of the first conveying pipe is communicated with the discharging barrel, the input end of the second conveying pipe is arranged on the upper portion of the shell in a communicating mode, and the output end of the second conveying pipe is communicated with the first conveying pipe; the first discharging device is arranged on the upper portion of the shell and used for controlling discharging of air and condensate water, and the second discharging device is arranged on the lower portion of the shell and used for controlling discharging of the condensate water.

Description

Technical Field

[0001] This utility model relates to the technical field of steam traps, and in particular to a corrosion-resistant steam trap. Background Technology

[0002] As an indispensable key device in industrial steam systems, steam traps are mainly used to automatically remove condensate, air and other non-condensable gases from pipelines or equipment, while preventing steam from escaping and ensuring the efficient operation of the steam system.

[0003] For example, the prior art patent with authorization announcement number CN206861243U discloses a novel free-floating ball type steam trap, including a steam trap body. The steam trap body is composed of a valve cover set on the top of the steam trap body and an inlet end and an air discharge end set on the side of the steam trap body. The inlet end is provided with a preliminary treatment tank, and the preliminary treatment tank is embedded in the inlet end.

[0004] However, it was found during the use of this steam trap that the internal components are prone to corrosion and damage, thereby reducing its reliability and service life. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a corrosion-resistant steam trap that improves the sealing performance of the housing, reduces corrosion of equipment components, improves reliability, and enhances the convenience of cleaning and maintenance inside the housing.

[0006] This utility model discloses a corrosion-resistant steam trap, comprising a housing and an inlet, the inlet being connected to the outer wall of the housing; it also includes a first discharge device, a second discharge device, a discharge cylinder, a first conveying pipe, and a second conveying pipe. The discharge cylinder is connected to the lower part of the outer wall of the housing, the bottom end of the first conveying pipe is connected to the discharge cylinder, the input end of the second conveying pipe is connected to the upper part of the housing, and the output end of the second conveying pipe is connected to the first conveying pipe. The first discharge device is located on the upper part of the housing and is used to control the discharge of air and condensate. The second discharge device is located on the lower part of the housing and is used to control the discharge of condensate. When air enters the housing through the inlet, the air is conveyed to the inside of the second conveying pipe through the first discharge device, and then conveyed to the first conveying pipe through the second conveying pipe, and discharged through the first conveying pipe. When condensate enters the housing through the inlet, the condensate is discharged from the discharge cylinder and the first conveying pipe through the second discharge device. When the condensate level in the housing is high, the condensate can be discharged through the first discharge device to improve the condensate discharge efficiency. When steam enters the housing, the first and second discharge devices are closed to improve the sealing performance of the housing.

[0007] Preferably, the first discharge device includes a top cover, a cover, an electric cylinder, a partition, and a first sealing block. An opening is provided at the top of the housing, the top cover is installed at the opening, the cover is installed at the top of the top cover, the electric cylinder is installed inside the top cover, and the moving end of the electric cylinder extends into the housing. The first sealing block is installed on the moving end of the electric cylinder. An annular positioning element is provided on the inner sidewall of the housing, and the partition is installed on the annular positioning element. A through hole is provided on the partition, the position of which corresponds to the first sealing block. Air or condensate entering the housing passes through the through hole of the partition and enters the housing space above the partition and below the top cover. Then, the air or condensate is transported to the first conveying pipe through the second conveying pipe for discharge. When steam enters the housing, the electric cylinder drives the first sealing block downwards to seal the through hole, thereby sealing the housing, reducing corrosion of equipment components, improving reliability, and improving the convenience of cleaning and maintenance by disassembling the top cover and partition.

[0008] Preferably, the second discharge device includes a spring device, a guide frame, a float, a first inclined block, a second sealing block, and a second inclined block. The guide frame is slidably installed inside the housing, the float is installed on the guide frame, the top of the first inclined block is connected to the top of the guide frame, and the second sealing block is slidably installed inside the discharge cylinder via the spring device. The second inclined block is installed on the outer wall of the second sealing block, and the inclined surface of the second inclined block cooperates with the inclined surface of the first inclined block. In its natural state, the guide frame and the float fall downwards under gravity, causing the first inclined block to push the second sealing block into the discharge cylinder through its cooperation with the second inclined block. At this time, the second sealing block seals the discharge cylinder. When condensate enters the housing, the condensate lifts the float upwards, causing the guide frame to move the first inclined block upwards. Then, the spring device pushes the second sealing block out of the discharge cylinder, allowing the condensate inside the housing to be discharged through the discharge cylinder and the first conveying pipe, thus improving corrosion resistance and reliability.

[0009] Preferably, the elastic device includes a telescopic rod and a spring. One end of the telescopic rod is fixedly installed on the inner wall of the discharge cylinder, and the other end of the telescopic rod is fixedly connected to the second sealing block. The spring is fitted onto the outer wall of the telescopic rod. The spring provides a pushing force to the second sealing block, thereby facilitating the removal of the second sealing block from the outside of the discharge cylinder and improving the convenience of automatic condensate drainage.

[0010] Preferably, it also includes a temperature sensor, which is installed on the outer wall of the housing and the sensing end of the temperature sensor is connected to the inside of the housing; by sensing the temperature inside the housing through the temperature sensor, when steam enters the housing, the temperature sensor controls the electric cylinder to act through the controller, thereby causing the first sealing block to seal the through hole of the partition.

[0011] Preferably, it also includes a first sealing ring and a second sealing ring, with the first sealing ring disposed on the outer wall of the top cover and the second sealing ring disposed on the outer wall of the partition; thereby improving the sealing effect between the partition, the top cover and the housing.

[0012] Preferably, the top cover and partition are bolted to the housing, thereby improving the ease of installation and removal of the top cover and partition.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: it improves the discharge efficiency of condensate; when steam enters the shell, the first discharge device and the second discharge device are closed, improving the sealing of the shell, reducing the corrosion of equipment parts, improving the reliability of use, and improving the convenience of cleaning and maintenance inside the shell by disassembling the top cover and partition. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is an isometric structural diagram of the connection between the first and second conveying pipes, etc.

[0016] Figure 3 This is an isometric structural diagram of the connection between the guide frame and the float, etc.

[0017] Figure 4 This is an isometric structural diagram of the connection between the top cover and the first sealing ring, etc.

[0018] Figure 5 This is an isometric structural diagram of the connection between the housing and the temperature sensor, etc.

[0019] Figure 6 This is a partial isometric structural diagram showing the connection between the second sealing block and the telescopic rod, etc.

[0020] The following are labels in the attached diagram: 1. Housing; 2. Inlet; 3. Discharge cylinder; 4. First conveying pipe; 5. Second conveying pipe; 6. Top cover; 7. Cover; 8. Electric cylinder; 9. Partition plate; 10. First sealing block; 11. Guide frame; 12. Float; 13. First inclined block; 14. Second sealing block; 15. Second inclined block; 16. Telescopic rod; 17. Spring; 18. Temperature sensor; 19. First sealing ring; 20. Second sealing ring. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0022] Example 1

[0023] like Figures 1 to 6 As shown, this utility model discloses a corrosion-resistant steam trap, comprising a housing 1 and an inlet 2, the inlet 2 being connected to the outer wall of the housing 1; it also includes a first discharge device, a second discharge device, a discharge cylinder 3, a first conveying pipe 4, and a second conveying pipe 5, the discharge cylinder 3 being connected to the lower part of the outer wall of the housing 1, the bottom end of the first conveying pipe 4 being connected to the discharge cylinder 3, the input end of the second conveying pipe 5 being connected to the upper part of the housing 1, the output end of the second conveying pipe 5 being connected to the first conveying pipe 4, the first discharge device being located on the upper part of the housing 1 and used to control the discharge of air and condensate, and the second discharge device being located on the lower part of the housing 1 and used to control the discharge of condensate;

[0024] like Figure 3 As shown, the first discharge device includes a top cover 6, a cover 7, an electric cylinder 8, a partition 9, and a first sealing block 10. The top of the housing 1 is provided with an opening, the top cover 6 is installed at the opening of the housing 1, the cover 7 is installed at the top of the top cover 6, the electric cylinder 8 is installed inside the top cover 6, the moving end of the electric cylinder 8 extends into the housing 1, the first sealing block 10 is installed on the moving end of the electric cylinder 8, an annular positioning member is provided on the inner side wall of the housing 1, the partition 9 is installed on the annular positioning member, and a through hole is provided on the partition 9, the position of the through hole corresponding to the first sealing block 10.

[0025] In this embodiment, when air enters the housing 1 through inlet 2, the air is delivered to the inside of the second delivery pipe 5 through the first discharge device, and then delivered to the first delivery pipe 4 through the second delivery pipe 5. The air is then discharged through the first delivery pipe 4. When condensate enters the housing 1 through inlet 2, the condensate is discharged from the discharge cylinder 3 and the first delivery pipe 4 through the second discharge device. When the condensate level in the housing 1 is high, the condensate can be discharged through the first discharge device to improve the condensate discharge efficiency. When steam enters the housing 1, the first discharge device and the second discharge device are closed to improve the sealing of the housing 1.

[0026] Example 2

[0027] Based on Example 1, such as Figure 2 As shown, this utility model discloses a corrosion-resistant drain valve. The second discharge device includes an elastic device, a guide frame 11, a float 12, a first inclined block 13, a second sealing block 14, and a second inclined block 15. The guide frame 11 is slidably installed inside the housing 1. The float 12 is installed on the guide frame 11. The top end of the first inclined block 13 is connected to the top end of the guide frame 11. The second sealing block 14 is slidably installed inside the discharge cylinder 3 through the elastic device. The second inclined block 15 is installed on the outer wall of the second sealing block 14, and the inclined surface of the second inclined block 15 cooperates with the inclined surface of the first inclined block 13.

[0028] like Figure 3 As shown, the elastic device includes a telescopic rod 16 and a spring 17. One end of the telescopic rod 16 is fixedly installed on the inner wall of the discharge cylinder 3, and the other end of the telescopic rod 16 is fixedly connected to the second sealing block 14. The spring 17 is fitted onto the outer wall of the telescopic rod 16.

[0029] like Figure 3 As shown, it also includes a temperature sensor 18, which is mounted on the outer wall of the housing 1, and the sensing end of the temperature sensor 18 is connected to the inside of the housing 1.

[0030] like Figure 4 As shown, it also includes a first sealing ring 19 and a second sealing ring 20. The first sealing ring 19 is disposed on the outer side wall of the top cover 6, and the second sealing ring 20 is disposed on the outer side wall of the partition 9.

[0031] like Figure 2 As shown, the top cover 6 and the partition 9 are bolted to the housing 1;

[0032] In this embodiment, air or condensate entering the housing 1 passes through the through-hole of the partition 9 into the space between the partition 9 and the top cover 6. Then, the air or condensate is transported to the first conveying pipe 4 via the second conveying pipe 5 and discharged. When steam enters the housing 1, the electric cylinder 8 drives the first sealing block 10 downwards to seal the through-hole, thereby sealing the housing 1, reducing corrosion of equipment components, and improving reliability. Removing the top cover 6 and partition 9 improves the convenience of cleaning and maintenance within the housing 1. In its natural state, the guide frame 11... As the float 12 descends under gravity, the first inclined block 13, in conjunction with the second inclined block 15, pushes the second sealing block 14 into the discharge cylinder 3. At this point, the second sealing block 14 seals the discharge cylinder 3. When condensate enters the housing 1, the condensate lifts the float 12 upward, causing the guide frame 11 to move the first inclined block 13 upward. Then, the elastic device pushes the second sealing block 14 out of the discharge cylinder 3, allowing the condensate in the housing 1 to be discharged through the discharge cylinder 3 and the first conveying pipe 4, thus improving corrosion resistance and reliability.

[0033] This utility model discloses a corrosion-resistant steam trap. When air enters the housing 1 through the inlet 2, the air is transported to the inside of the second conveying pipe 5 through the first discharge device, and then transported to the first conveying pipe 4 through the second conveying pipe 5. The air is then discharged through the first conveying pipe 4. When condensate enters the housing 1 through the inlet 2, the condensate is discharged from the discharge cylinder 3 and the first conveying pipe 4 through the second discharge device. When the condensate level in the housing 1 is high, the condensate can be discharged through the first discharge device. When steam enters the housing 1, the first discharge device and the second discharge device are closed.

[0034] The electric cylinder 8 and temperature sensor 18 of the corrosion-resistant steam trap of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A corrosion-resistant steam trap, comprising a housing (1) and an inlet (2), the inlet (2) being disposed on the outer wall of the housing (1); characterized in that, It also includes a first discharge device, a second discharge device, a discharge cylinder (3), a first conveying pipe (4) and a second conveying pipe (5). The discharge cylinder (3) is connected to the lower part of the outer wall of the shell (1). The bottom end of the first conveying pipe (4) is connected to the discharge cylinder (3). The input end of the second conveying pipe (5) is connected to the upper part of the shell (1). The output end of the second conveying pipe (5) is connected to the first conveying pipe (4). The first discharge device is located on the upper part of the shell (1) and is used to control the discharge of air and condensate. The second discharge device is located on the lower part of the shell (1) and is used to control the discharge of condensate.

2. The corrosion-resistant steam trap as described in claim 1, characterized in that, The first discharge device includes a top cover (6), a cover (7), an electric cylinder (8), a partition (9), and a first sealing block (10). The top of the housing (1) is provided with an opening. The top cover (6) is installed at the opening of the housing (1). The cover (7) is installed at the top of the top cover (6). The electric cylinder (8) is installed inside the top cover (6). The moving end of the electric cylinder (8) extends into the housing (1). The first sealing block (10) is installed on the moving end of the electric cylinder (8). The inner side wall of the housing (1) is provided with an annular positioning element. The partition (9) is installed on the annular positioning element. The partition (9) is provided with a through hole. The position of the through hole corresponds to the first sealing block (10).

3. The corrosion-resistant steam trap as described in claim 1, characterized in that, The second discharge device includes an elastic device, a guide frame (11), a float (12), a first inclined block (13), a second sealing block (14), and a second inclined block (15). The guide frame (11) is slidably installed inside the housing (1). The float (12) is installed on the guide frame (11). The top of the first inclined block (13) is connected to the top of the guide frame (11). The second sealing block (14) is slidably installed inside the discharge cylinder (3) through the elastic device. The second inclined block (15) is installed on the outer wall of the second sealing block (14), and the inclined surface of the second inclined block (15) matches the inclined surface of the first inclined block (13).

4. A corrosion-resistant steam trap as described in claim 3, characterized in that, The elastic device includes a telescopic rod (16) and a spring (17). One end of the telescopic rod (16) is fixedly installed on the inner wall of the discharge cylinder (3), and the other end of the telescopic rod (16) is fixedly connected to the second sealing block (14). The spring (17) is fitted onto the outer wall of the telescopic rod (16).

5. A corrosion-resistant steam trap as described in claim 1, characterized in that, It also includes a temperature sensor (18), which is installed on the outer wall of the housing (1), and the sensing end of the temperature sensor (18) is connected to the inside of the housing (1).

6. A corrosion-resistant steam trap as described in claim 2, characterized in that, It also includes a first sealing ring (19) and a second sealing ring (20), the first sealing ring (19) being disposed on the outer side wall of the top cover (6) and the second sealing ring (20) being disposed on the outer side wall of the partition (9).

7. A corrosion-resistant steam trap as described in claim 2, characterized in that, The top cover (6) and partition (9) are bolted to the housing (1).

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