A combined valve for a matching hydrophobic valve

Abstract

A combined valve for matching with a steam trap, comprising a main valve body, a main flow channel is arranged on the main valve body, a medium inlet and a medium outlet are arranged at both ends of the main flow channel, a stop valve assembly and a drain valve assembly are arranged on both sides of the main flow channel respectively, the stop valve assembly is used for controlling the opening and closing of the main flow channel and in turn controlling the opening and closing of the steam trap, and the drain valve assembly is used for draining. The integrated fluid channel enables the medium to directly communicate with the steam trap through the combined valve, avoids excessive connection of external pipes, is more compact in overall structure, and reduces the installation space occupation. The opening and closing of the main flow channel can be directly controlled through the stop valve assembly, so that the start and stop control of the inlet and outlet of the steam trap is realized, an independent stop valve is avoided to be additionally arranged, the installation steps are simplified, and the cost is reduced. The drain valve assembly is used for system drainage, maintenance bypass or pipeline emptying operation, can quickly release the internal pressure and condensate water when the steam trap is maintained or replaced, reduces the downtime, and improves the maintenance convenience.

Description

Technical Field

[0001] This utility model relates to a combination valve for use with a steam trap, belonging to the field of valves. Background Technology

[0002] Steam traps, as important components of steam systems, are mainly used to promptly discharge condensate and prevent steam leakage. In existing technologies, steam traps often need to be used in conjunction with gate valves and discharge valves to achieve start-stop control and discharge operations.

[0003] However, existing technologies typically install the gate valve and the drain valve separately before and after the steam trap, which has the following drawbacks: multiple valves and piping combinations are required, resulting in a cumbersome structure, large installation space, and complex installation steps; due to the increased number of pipeline connection points, the risk of sealing increases, the system reliability is lower, and there are many leakage points; when repairing the steam trap, multiple valves need to be closed one by one, resulting in long downtime, low maintenance efficiency, and inconvenience in maintenance.

[0004] Therefore, existing technologies urgently need a more compact and easier-to-install and maintain combination valve solution to improve the efficiency and reliability of steam traps in steam systems. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a combination valve for use with steam traps, aiming to solve the problems of low installation efficiency and unreliable performance of steam traps in steam systems.

[0006] A combination valve for use with a steam trap includes a main valve body with a main channel. The main valve body has a medium inlet and a medium outlet at both ends of the main channel. A shut-off valve assembly and a discharge valve assembly are respectively provided on both sides of the main channel. The shut-off valve assembly is used to control the opening and closing of the main channel, thereby controlling the opening and closing of the steam trap. The discharge valve assembly is used for discharge.

[0007] This technical solution creates an integrated fluid channel, allowing the medium to directly connect to the steam trap via the combination valve, avoiding excessive external piping connections. The overall structure is more compact, reducing installation space requirements. The shut-off valve assembly directly controls the flow of the main channel, enabling start / stop control of the steam trap's inlet and outlet, eliminating the need for separate shut-off valves, simplifying installation, and reducing costs. The drain valve assembly is used for system drainage, maintenance bypass, or pipeline venting. It quickly releases internal pressure and condensate during steam trap maintenance or replacement, reducing downtime and improving maintenance convenience. The integrated structure combines shut-off and drain functions, reducing the number of separate valves and connectors, decreasing leakage points, and improving system sealing reliability and safety.

[0008] Preferably, the shut-off valve assembly includes a first plug valve and a second plug valve.

[0009] This technical solution, by incorporating a first plug valve and a second plug valve into the gate valve assembly, allows for separate control of the medium flow at the inlet and outlet ends of the main channel, achieving bidirectional shut-off. This not only enhances safety and reliability during steam trap maintenance, preventing backflow of the medium from one end into the steam trap, but also improves the flexibility of valve opening and closing and the sealing effect, resulting in higher overall operational reliability and service life for the combined valve.

[0010] Furthermore, the first plug valve includes a first plug valve body, the first plug valve body is provided with a first flow channel communicating with the main flow channel, the first flow channel is provided with a first plug valve stem, and the bottom of the first plug valve stem is connected to a first steel ball for controlling the opening and closing of the first flow channel by the first plug valve stem.

[0011] This technical solution involves setting a first plug-type valve stem that cooperates with a first steel ball, enabling the opening and closing of the first flow channel through the up-and-down driving action of the valve stem. The control method is intuitive and the operation is reliable.

[0012] Furthermore, a filter barrel is also provided inside the first flow channel.

[0013] This technical solution enables the filter barrel to perform preliminary filtration of the medium entering the first flow channel, intercepting impurities and particles. The filter barrel is integrated with the first flow channel, resulting in a compact overall structure and small footprint, making it particularly suitable for applications where steam pipeline installation space is limited. It also reduces valve wear or sealing failure caused by impurities, improving the service life and operational reliability of combination valves and steam traps.

[0014] Furthermore, the second plug valve includes a second plug valve body, the second plug valve body is provided with a second flow channel communicating with the main flow channel, the second flow channel is provided with a second plug valve stem, and the bottom of the second plug valve stem is connected to a second steel ball for controlling the opening and closing of the second flow channel by the second plug valve stem.

[0015] This technical solution enables the second plug valve stem to drive the second steel ball to open and close, making the opening and closing of the second flow channel more reliable and ensuring precise and controllable discharge. In conjunction with the first plug valve, the second plug valve can achieve branch discharge, standby discharge, or differentiated discharge, meeting the fluid management needs under complex operating conditions.

[0016] Preferably, the discharge valve assembly includes a first discharge valve and a second discharge valve.

[0017] This technical solution, by configuring the discharge valve assembly as a first discharge valve and a second discharge valve, allows for selection of individual or combined discharge based on operating conditions, making the discharge process more flexible. When one discharge valve malfunctions or fails to seal properly, the other discharge valve can serve as a backup, ensuring uninterrupted discharge function and improving system reliability. The first and second discharge valves can be connected to different fluid branches, thus adapting to various application scenarios such as routine discharge, emergency discharge, or maintenance discharge.

[0018] Furthermore, both the first discharge valve and the second discharge valve include a discharge channel communicating with the main channel, and a discharge valve stem is provided in the discharge channel, which is used to control the opening and closing of the discharge channel and the main channel.

[0019] This technical solution, by installing a discharge valve stem within the discharge channel, allows for flexible opening and closing of the discharge passage, making the switching between the main discharge channel and the external discharge pipeline more accurate and reliable. When maintenance or condensate drain valve upkeep is required, the discharge channel can be quickly opened or closed by manipulating the discharge valve stem, facilitating the rapid emptying of residual media from the pipeline and shortening maintenance time.

[0020] Furthermore, a handle is attached to the top of the discharge valve stem.

[0021] This technical solution allows operators to quickly control the discharge via a handle in emergency situations, preventing steam system malfunctions or excessive pressure due to delays. The handle's intuitive design enables rapid rotation or pulling, reducing the time required for discharge or switching.

[0022] Preferably, the main valve body is integrally cast.

[0023] This technical solution, through integral casting, avoids multi-section splicing or welding, significantly reducing potential leakage points and improving the sealing reliability of the valve body. The integrated casting process ensures uniform stress distribution throughout the valve body, resulting in stronger pressure resistance and suitability for high-temperature and high-pressure conditions in steam systems. Through integral design and casting, the internal flow channel layout can be optimized while maintaining strength, achieving a compact structure and small footprint.

[0024] The beneficial effects of this utility model are as follows: It forms an integrated fluid channel, allowing the medium to directly connect to the steam trap via the combined valve, avoiding excessive external pipe connections, resulting in a more compact overall structure and reduced installation space. The shut-off valve assembly directly controls the flow of the main channel, enabling start / stop control of the steam trap's inlet and outlet, eliminating the need for separate shut-off valves, simplifying installation, and reducing costs. The discharge valve assembly is used for system discharge, maintenance bypass, or pipeline venting, quickly releasing internal pressure and condensate during steam trap maintenance or replacement, reducing downtime and improving maintenance convenience. The integrated structure combines shut-off and discharge functions, reducing the number of separate valves and joints, decreasing the number of leakage points, and improving system sealing reliability and safety. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0026] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram from another perspective of the present invention; Figure 3 This is a schematic diagram of the circuit breaker in its first position. Figure 4 This is a schematic diagram of the circuit breaker in the second position. In the diagram, 1. Main valve body; 2. Main flow channel; 21. Medium inlet; 22. Medium outlet; 3. Gate valve assembly; 31. First plug valve; 311. First plug valve body; 312. First flow channel; 313. First plug valve stem; 314. First steel ball; 315. Filter barrel; 32. Second plug valve; 321. Second plug valve body; 322. Second flow channel; 323. Second plug valve stem; 324. Second steel ball; 4. Discharge valve assembly; 41. First discharge valve; 42. Second discharge valve; 43. Discharge flow channel; 44. Discharge valve stem; 45. Handle. Detailed Implementation

[0027] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0028] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0029] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0030] like Figure 1-4 As shown, this is an embodiment of a combination valve for use with a steam trap according to the present invention. It includes a main valve body 1, on which a main channel 2 is provided. The main channel 2 has a medium inlet 21 and a medium outlet 22 at both ends. A shut-off valve assembly 3 and a discharge valve assembly 4 are respectively provided on both sides of the main channel 2. The shut-off valve assembly 3 is used to control the opening and closing of the main channel 2, thereby controlling the opening and closing of the steam trap. The discharge valve assembly 4 is used for discharge.

[0031] This technical solution creates an integrated fluid channel, allowing the medium to directly connect to the steam trap via the combined valve, avoiding excessive external piping connections. The overall structure is more compact, reducing installation space requirements. The shut-off valve assembly 3 directly controls the flow of the main channel 2, enabling start / stop control of the steam trap's inlet and outlet. This eliminates the need for separate shut-off valves, simplifying installation and reducing costs. The discharge valve assembly 4 is used for system discharge, maintenance bypass, or pipeline venting. It quickly releases internal pressure and condensate during steam trap maintenance or replacement, reducing downtime and improving maintenance convenience. The integrated structure combines shut-off and discharge functions, reducing the number of separate valves and connectors, decreasing leakage points, and improving system sealing reliability and safety.

[0032] The shut-off valve assembly 3 includes a first plug valve 31 and a second plug valve 32.

[0033] This technical solution, by setting a first plug valve 31 and a second plug valve 32 in the shut-off valve assembly 3, allows for the separate control of the medium flow at the inlet and outlet ends of the main flow channel 2, achieving bidirectional shut-off. This not only makes maintenance of the steam trap safer and more reliable, preventing backflow of the medium from one end into the steam trap, but also improves the flexibility of valve opening and closing and the sealing effect, resulting in higher operational reliability and service life for the combined valve as a whole.

[0034] The first plug valve 31 includes a first plug valve body 311, a first flow channel 312 communicating with the main flow channel 2 is provided in the first plug valve body 311, a first plug valve stem 313 is provided in the first flow channel 312, and a first steel ball 314 is connected to the bottom of the first plug valve stem 313 for controlling the opening and closing of the first flow channel 312 by the first plug valve stem 313.

[0035] With this technical solution, a first plug valve stem 313 is set up and cooperates with a first steel ball 314. The opening and closing of the first flow channel 312 can be realized by the up and down driving action of the valve stem. The control method is intuitive and the operation is reliable.

[0036] The first flow channel 312 is also equipped with a filter barrel 315.

[0037] Through this technical solution, the filter barrel 315 can perform preliminary filtration of the medium entering the first flow channel 312, intercepting impurities and particles; the filter barrel 315 and the first flow channel 312 are integrated, with a compact overall structure and small space occupation, which is particularly suitable for occasions where the installation space of steam pipelines is limited; it reduces valve wear or sealing failure caused by impurities, and improves the service life and operational reliability of combination valves and steam traps.

[0038] The second plug valve 32 includes a second plug valve body 321, a second flow channel 322 communicating with the main flow channel 2, a second plug valve stem 323 in the second flow channel 322, and a second steel ball 324 connected to the bottom of the second plug valve stem 323 for controlling the opening and closing of the second flow channel 322 by the second plug valve stem 323.

[0039] Through this technical solution, the second plug valve stem 323 drives the second steel ball 324 to achieve opening and closing actions, thereby making the opening and closing of the second flow channel 322 more reliable and ensuring precise and controllable discharge actions. By cooperating with the first plug valve 31, the second plug valve 32 can realize branch discharge, standby discharge, or differentiated discharge, meeting the needs of fluid management under complex working conditions.

[0040] The discharge valve assembly 4 includes a first discharge valve 41 and a second discharge valve 42.

[0041] This technical solution, by configuring the discharge valve assembly 4 as a first discharge valve 41 and a second discharge valve 42, allows for the selection of individual or combined discharge based on operating conditions, making the discharge process more flexible. When one discharge valve malfunctions or fails to seal properly, the other discharge valve can serve as a backup, ensuring uninterrupted discharge function and improving system reliability. The first discharge valve 41 and the second discharge valve 42 can be connected to different fluid branches, thus adapting to various usage scenarios such as routine discharge, emergency discharge, or maintenance discharge.

[0042] The first discharge valve 41 and the second discharge valve 42 both include a discharge channel 43 that communicates with the main channel 2. The discharge channel 43 is provided with a discharge valve stem 44, which is used to control the opening and closing of the discharge channel 43 and the main channel 2.

[0043] This technical solution, by installing a discharge valve stem 44 within the discharge channel 43, allows for flexible opening and closing of the discharge channel, making the switching between the main channel 2 and the external discharge pipeline more accurate and reliable. When maintenance or condensate drain valve upkeep is required, the discharge channel 43 can be quickly opened or closed by manipulating the discharge valve stem 44, facilitating the rapid emptying of residual media from the pipeline and shortening maintenance time.

[0044] A handle 45 is connected to the top of the discharge valve stem 44.

[0045] This technical solution allows operators to quickly control the discharge via handle 45 in emergency situations, preventing steam system malfunctions or excessive pressure due to delays. Handle 45 has an intuitive design, enabling rapid rotation or pulling, thus reducing the time required for discharge or switching.

[0046] The main valve body 1 is integrally cast.

[0047] This technical solution, through integral casting, avoids multi-section splicing or welding, significantly reducing potential leakage points and improving the sealing reliability of the valve body. The integrated casting process ensures uniform stress distribution throughout the valve body, resulting in stronger pressure resistance and suitability for high-temperature and high-pressure conditions in steam systems. Through integral design and casting, the internal flow channel layout can be optimized while maintaining strength, achieving a compact structure and small footprint.

[0048] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

[0049] Although the present invention has been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the specific embodiments disclosed. The present invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A combination valve for use with a steam trap, characterized in that: The device includes a main valve body, on which a main channel is provided. At both ends of the main channel are a medium inlet and a medium outlet. On both sides of the main channel are respectively a shut-off valve assembly and a discharge valve assembly. The shut-off valve assembly is used to control the opening and closing of the main channel, thereby controlling the opening and closing of the drain valve. The discharge valve assembly is used for discharge.

2. The combination valve for use with a steam trap according to claim 1, characterized in that: The shut-off valve assembly includes a first plug valve and a second plug valve.

3. The combination valve for use with a steam trap according to claim 2, characterized in that: The first plug valve includes a first plug valve body, a first flow channel communicating with the main flow channel is provided in the first plug valve body, a first plug valve stem is provided in the first flow channel, and a first steel ball is connected to the bottom of the first plug valve stem for controlling the opening and closing of the first flow channel by the first plug valve stem.

4. The combination valve for use with a steam trap according to claim 3, characterized in that: A filter barrel is also provided in the first flow channel.

5. The combination valve for use with a steam trap according to claim 2, characterized in that: The second plug valve includes a second plug valve body, a second flow channel communicating with the main flow channel is provided in the second plug valve body, a second plug valve stem is provided in the second flow channel, and a second steel ball is connected to the bottom of the second plug valve stem for controlling the opening and closing of the second flow channel by the second plug valve stem.

6. The combination valve for use with a steam trap according to claim 1, characterized in that: The discharge valve assembly includes a first discharge valve and a second discharge valve.

7. The combination valve for use with a steam trap according to claim 6, characterized in that: Both the first discharge valve and the second discharge valve include a discharge channel communicating with the main channel. A discharge valve stem is provided in the discharge channel, and the discharge valve stem is used to control the opening and closing of the discharge channel and the main channel.

8. The combination valve for use with a steam trap according to claim 7, characterized in that: A handle is attached to the top of the discharge valve stem.

9. The combination valve for use with a steam trap according to claim 1, characterized in that: The main valve body is integrally cast.

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