Drain valve convenient to install

Abstract

According to the drain valve convenient to install, a sealing ring is clamped and fixed to the periphery of a columnar section base, a valve cover is connected into a base installation groove and abuts against a conical section base, a heat gap cavity is defined by the valve cover, the lower end of the valve cover and the upper end of the conical section base are circumferentially fixed, and a sealing ring groove corresponding to the sealing ring is formed in the inner wall of the valve cover; according to the drain valve convenient to install, a valve seat comprises a columnar section seat and a conical section seat in the thickness direction, and the conical section seat is connected with a bowl-shaped wall of a seat installation groove; in the mounting and dismounting processes, the valve plate, the valve cover, the sealing ring and the valve seat can form an integral structure, so that the optimization of the mounting and dismounting processes is realized; in the installation process, the conical section seat is matched with the bowl-shaped wall, guiding is achieved, and the sealing effect between the valve seat and the seat installation groove is improved. In the rotating process of the valve cover, circumferential fixation is formed between the valve cover and the valve seat, the valve seat is not prone to disengagement, meanwhile, the sealing ring cannot be rubbed, and the sealing effect of the sealing ring is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of steam traps, and particularly relates to a steam trap that is convenient to install. Background Technique

[0002] A thermodynamic steam trap is an automatic valve used to drain condensate in a pipeline. It utilizes the temperature difference between steam and condensate in the pipeline to control the opening and closing of the valve. When detecting low-temperature condensate, the valve will open to let the water drain; when steam passes through, the temperature rises and the valve closes. This kind of valve is commonly used in steam systems to improve the system efficiency and protect equipment.

[0003] The main structural components of a thermodynamic steam trap are a valve body, a valve seat, a valve cover, and a valve disc. The valve seat is installed on the valve body, the valve cover fixes the valve seat, and the valve disc is arranged in a thermal clearance cavity formed by enclosing the valve cover and the valve seat. After long-term use, it is not easy to ensure the sealing effect between the valve seat and the valve body, and it is not easy to ensure the sealing effect between the valve seat and the valve cover. Due to the sealing effect, the installation, especially the disassembly of the valve seat, valve cover, and valve disc on the valve body, has a certain degree of difficulty. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a steam trap that is convenient to install, aiming to solve the problem that it is not easy to ensure the sealing effect between the valve seat and the valve body and between the valve seat and the valve cover, and the installation of the valve seat, valve cover, and valve disc on the valve body is not convenient enough due to the sealing effect.

[0005] To achieve the above purpose, the utility model provides a steam trap that is convenient to install, including:

[0006] A valve body with an inlet channel and an outlet channel at both ends. A seat installation groove is provided on the outer wall of the valve body. A fluid hole leading to the inlet channel is arranged at the center of the bottom of the seat installation groove. A first annular groove leading to the outlet channel is provided outside the fluid hole. The lower part of the seat installation groove is in a tapered shape that gradually shrinks to form a bowl-shaped wall;

[0007] A valve seat is arranged in the seat installation groove. A through hole corresponding to the fluid hole penetrates through the valve seat in the thickness direction. A second annular groove is provided on the upper surface of the valve seat. A conduction channel connecting the second annular groove and the first annular groove is also arranged in the thickness direction of the valve seat. The thickness direction of the valve seat includes a columnar section seat at the upper end and a conical section seat at the lower end that are connected to each other. The diameter of the conical section seat is larger than that of the columnar section seat and gradually shrinks downward. Among them, the conical section seat is adapted to the bowl-shaped wall;

[0008] A sealing ring is clamped on the outer periphery of the columnar section seat;

[0009] The valve cover is connected within the seat mounting groove, abuts against the conical section seat, and encloses to form a thermal clearance cavity. The lower end of the valve cover forms a circumferential fixation with the upper end of the conical section seat, and a sealing ring groove corresponding to the sealing ring is provided on the inner wall of the valve cover;

[0010] The valve disc is disposed within the thermal clearance cavity and covers the second annular groove in a plane.

[0011] Furthermore, the connection mode between the valve cover and the seat mounting groove is a bolt.

[0012] Furthermore, a plurality of fixing bolts are provided on the circumference of the lower end of the valve cover, and a plurality of fixing grooves corresponding to the plurality of fixing bolts are provided on the upper surface of the conical section seat.

[0013] Furthermore, the fixing bolt and the fixing groove form a snap-fit.

[0014] Furthermore, the steam trap further includes a small gasket ring and a large gasket ring disposed in the seat mounting groove corresponding to the valve seat. The small gasket ring is disposed between the fluid hole and the first annular groove, and the large gasket ring surrounds the first annular groove.

[0015] Furthermore, both the small gasket ring and the large gasket ring are detachably connected to the bottom of the valve seat.

[0016] Furthermore, both the small gasket ring and the large gasket ring are elastically snap-connected to the bottom of the valve seat.

[0017] Furthermore, a guiding column is provided at the top of the valve disc, and a guiding groove corresponding to the guiding column is provided inside the valve cover. Wherein, when the valve disc abuts against the valve seat, the guiding column is within the guiding groove.

[0018] Furthermore, a filtering cavity is further provided on the outer wall of the valve body. The fluid hole is conducted to the fluid hole through the filtering cavity, and a filtering device is provided in the filtering cavity.

[0019] Furthermore, the steam trap further includes a protective cover. The protective cover is connected to the valve body and encloses the valve cover within the seat mounting groove.

[0020] The steam trap with convenient installation provided by the present utility model includes a columnar section seat and a conical section seat in the thickness of the valve seat, and the conical section seat and the bowl-shaped wall of the seat mounting groove; during the installation and disassembly process, the valve disc, the valve cover, the sealing ring and the valve seat can form an integral structure, thereby realizing the optimization of the installation and disassembly process; and during the installation process, the conical section seat is adapted to the bowl-shaped wall to achieve guidance, and the sealing effect between the valve seat and the seat mounting groove is improved; during the rotation of the valve cover, since there is a circumferential fixation between the valve cover and the valve seat, the valve seat is not easily detached, and at the same time, the sealing ring is not rubbed, thereby ensuring the sealing effect of the sealing ring. Brief Description of the Drawings

[0021] Figure 1 is a cross-sectional view of a trap with convenient installation in the first embodiment of the present utility model;

[0022] Figure 2 is Figure 1 a partial enlargement in

[0023] Figure 3 is a cross-sectional view of the valve body in the trap with convenient installation in the first embodiment of the present utility model;

[0024] Figure 4 is a cross-sectional view of the valve seat in the trap with convenient installation in the first embodiment of the present utility model;

[0025] Figure 5 is a schematic diagram of the installation process of the valve disc, valve cover, sealing ring and valve seat in the trap with convenient installation in the first embodiment of the present utility model;

[0026] Figure 6 is a schematic diagram of the structure formed by the valve disc, valve cover, sealing ring and valve seat in the trap with convenient installation in the first embodiment of the present utility model.

[0027] The realization of the object, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed Embodiments

[0028] It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] Those skilled in the art of the present technology can understand that unless specifically stated, the singular forms "a", "an", "the", "above-mentioned" and "this" used herein may also include the plural forms. It should be further understood that the term "including" used in the specification of the present utility model means the presence of the described features, integers, steps, operations, elements, units, modules and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components and / or their groups. It should be understood that when we say that an element is "connected" or "coupled" to another element, it can be directly connected or coupled to other elements, or there may also be intermediate elements. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The term "and / or" used herein includes all or any unit and all combinations of one or more related listed items.

[0030] Those skilled in the art of this technology can understand that, unless otherwise defined, all terms used herein (including technical terms and scientific terms) have the same meaning as the general understanding of those of ordinary skill in the art to which this utility model belongs. It should also be understood that terms such as those defined in a general dictionary should be understood to have a meaning consistent with the context of the prior art, and will not be interpreted with an idealized or overly formal meaning unless specifically defined as here.

[0031] Referring to Figures 1 to 6 , in one embodiment of the present utility model, a trap with convenient installation includes:

[0032] A valve body 100, with an inlet channel 110 and an outlet channel 120 at both ends respectively. A seat mounting groove 130 is provided on the outer wall of the valve body 100. A fluid hole 131 leading to the inlet channel 110 is provided at the center of the bottom of the seat mounting groove 130. A first annular groove 132 leading to the outlet channel 120 is provided around the fluid hole 131. The lower part of the seat mounting groove 130 is in a tapered frustum shape to form a bowl-shaped wall 133;

[0033] A valve seat 200, arranged in the seat mounting groove 130. A through hole 210 corresponding to the fluid hole 131 penetrates in the thickness direction in the middle of the valve seat 200. A second annular groove 220 is provided on the upper surface of the valve seat 200. A conduction channel 230 connecting the second annular groove 220 and the first annular groove 132 is also provided in the thickness direction of the valve seat 200. The thickness direction of the valve seat 200 includes a columnar section seat 240 connected to the upper end and a conical section seat 250 connected to the lower end. The diameter of the conical section seat 250 is larger than that of the columnar section seat 240 and gradually decreases downward. Among them, the conical section seat 250 is adapted to the bowl-shaped wall 133;

[0034] A sealing ring 300, clamped on the outer periphery of the columnar section seat 240;

[0035] A valve cover 400, connected in the seat mounting groove 130, abutting against the conical section seat 250 and surrounding to form a thermal clearance cavity. The lower end of the valve cover 400 forms a circumferential fixation with the upper end of the conical section seat 250. A sealing ring groove 410 corresponding to the sealing ring 300 is provided on the inner wall of the valve cover 400;

[0036] A valve disc 500, arranged in the thermal clearance cavity and covering the second annular groove 220 on a plane.

[0037] In the prior art, after long-term use, it is not easy to ensure the sealing effect between the valve seat 200 and the valve body 100, and it is not easy to ensure the sealing effect between the valve seat 200 and the valve cover 400; due to the sealing effect, the installation of the valve seat 200, the valve cover 400 and the valve plate 500 on the valve body 100, especially the disassembly, is inconvenient.

[0038] In the present utility model, when the steam trap is in use, the up and down directions are fixed, so a certain direction indication is carried out in the up and down manner. In the present utility model, both ends of the valve body 100 are respectively an inlet channel 110 and an outlet channel 120. The inlet channel 110 is the position where the fluid enters, and the outlet channel 120 is the position where the fluid flows out. A seat installation groove 130 is provided on the outer wall of the valve body 100, which is the installation position of the subsequent valve seat 200. A fluid hole 131 leading to the inlet channel 110 is provided in the center of the bottom of the seat installation groove 130. After the fluid enters from the inlet channel 110, it is conducted into the seat installation groove 130 through the fluid hole 131. A first ring groove 132 is provided around the fluid hole 131, and the lower part of the seat installation groove 130 is in a tapered shape that gradually shrinks to form a bowl-shaped wall 133.

[0039] The valve seat 200 is arranged in the seat installation groove 130. A through hole 210 corresponding to the fluid hole 131 penetrates in the thickness direction of the middle part of the valve seat 200, and the fluid enters above the valve seat 200 through the fluid hole 131 and the through hole 210. A second ring groove 220 is provided on the upper surface of the valve seat 200, and a conduction channel 230 connecting the second ring groove 220 and the first ring groove 132 is also provided in the thickness direction of the valve seat 200. The thickness direction of the valve seat 200 includes a columnar section seat 240 connected to the upper end and a conical section seat 250 connected to the lower end. The second ring groove 220 is provided at the upper end of the columnar section seat 240. The diameter of the conical section seat 250 is larger than that of the columnar section seat 240 and gradually shrinks downward in diameter. The conical section seat 250 is adapted to the bowl-shaped wall 133. Then, the sealing effect between the valve seat 200 and the seat installation groove 130 is relatively superior, and it can play a guiding role during the installation process.

[0040] The sealing ring 300 is clamped on the outer periphery of the columnar section seat 240.

[0041] The valve cover 400 is connected within the seat mounting groove 130, abuts against the conical section seat 250, and a thermal clearance cavity is formed therearound. Thus, the valve cover 400 fixes the valve seat 200 in the seat mounting groove 130. The lower end of the valve cover 400 and the upper end of the conical section seat 250 are circumferentially fixed, so that there is no relative circumferential movement between the valve cover 400 and the valve seat 200. The circumferential fixing method between the valve cover 400 and the valve seat 200 can be various. For example, a plurality of fixing bolts 420 are arranged circumferentially at the lower end of the valve cover 400, and a plurality of fixing grooves 260 corresponding to the plurality of fixing bolts 420 are arranged on the upper surface of the conical section seat 250. A sealing ring groove 410 corresponding to the sealing ring 300 is arranged on the inner wall of the valve cover 400. Through the sealing ring 300, the valve seat 200 can be preliminarily fixed on the valve cover 400.

[0042] The valve disc 500 is arranged within the thermal clearance cavity and covers the second annular groove 220 in a plane, thereby achieving the effect of a thermodynamic steam trap.

[0043] During use, the valve disc 500 is placed in the valve cover 400, the sealing ring 300 is clamped on the valve seat 200, and then the valve seat 200 is sleeved in the valve cover 400. Through the elastic action of the sealing ring 300, the valve seat 200 is preliminarily fixed on the valve cover 400 to form an integral structure. Finally, the integral structure is installed or disassembled in the seat mounting groove 130, thereby optimizing the installation and disassembly process. During the installation process, the conical section seat 250 is adapted to the bowl-shaped wall 133 to achieve guidance, and the sealing effect between the valve seat 200 and the seat mounting groove 130 is improved. During the rotation of the valve cover 400, since there is a circumferential fixation between the valve cover 400 and the valve seat 200, the valve seat 200 is not easily detached, and at the same time, the sealing ring 300 is not subject to friction, thus ensuring the sealing effect.

[0044] In summary, the valve seat 200 includes a columnar section seat 240 and a conical section seat 250 in terms of thickness, and the conical section seat 250 and the bowl-shaped wall 133 of the seat mounting groove 130; during the installation and disassembly process, the valve disc 500, the valve cover 400, the sealing ring 300, and the valve seat 200 can form an integral structure, thereby optimizing the installation and disassembly process; during the installation process, the conical section seat 250 is adapted to the bowl-shaped wall 133 to achieve guidance, and the sealing effect between the valve seat 200 and the seat mounting groove 130 is improved; during the rotation of the valve cover 400, since there is a circumferential fixation between the valve cover 400 and the valve seat 200, the valve seat 200 is not easily detached, and at the same time, the sealing ring 300 is not subject to friction, thus ensuring the sealing effect of the sealing ring 300.

[0045] In one embodiment, the connection method between the valve cover 400 and the seat mounting groove 130 is a bolt.

[0046] In this embodiment, the fixing method of the valve cover 400 is defined. For example, a plurality of internal threaded holes are provided in the circumferential direction at the top of the seat mounting groove 130, and perforations corresponding to the internal threaded holes are provided on the valve cover 400, so that fixation can be achieved through bolts. Through the above settings, the overall formed by the valve seat 200, the sealing ring 300, the valve cover 400 and the valve plate 500 can be conveniently installed in the seat mounting groove 130, and finally the valve cover 400 is fixed on the seat mounting groove 130 through a plurality of bolts.

[0047] Referring to Figure 2 and 5 , in one embodiment, a plurality of fixing bolts 420 are provided on the circumference at the lower end of the valve cover 400, and a plurality of fixing grooves 260 corresponding to the plurality of fixing bolts 420 are provided on the upper surface of the conical section seat 250.

[0048] In this embodiment, through the cooperation between the plurality of fixing bolts 420 and the plurality of fixing grooves 260, the circumferential fixation of the valve cover 400 and the valve seat 200 is achieved. The shape of the fixing bolt 420 is preferably cylindrical, and the number of fixing bolts 420 is preferably 2 or 4.

[0049] In one embodiment, the fixing bolt 420 and the fixing groove 260 form a snap-fit.

[0050] In this embodiment, the auxiliary fixation of the valve seat 200 on the valve cover 400 is achieved through the snap-fit between the fixing bolt 420 and the fixing groove 260. Thus, the possibility of the valve seat 200 abnormally falling off the valve cover 400 during the installation and disassembly process is reduced.

[0051] Referring to Figures 1 to 6 , in one embodiment, the steam trap further includes a small gasket 610 and a large gasket 620 disposed in the seat mounting groove 130 corresponding to the valve seat 200. The small gasket 610 is disposed between the fluid hole 131 and the first annular groove 132, and the large gasket 620 surrounds the first annular groove 132.

[0052] In this embodiment, the materials of the small gasket 610 and the large gasket 620 are preferably high polymer materials, or can also be relatively soft metals.

[0053] In one embodiment, both the small gasket 610 and the large gasket 620 are detachably connected to the bottom of the valve seat 200.

[0054] In this embodiment, through the fixation and limitation of the small gasket ring 610 and the large gasket ring 620, the small gasket ring 610 and the large gasket ring 620 can be made more convenient to install during the installation process. Specifically, during the installation of the steam trap, the small gasket ring 610 and the large gasket ring 620 are first installed on the valve seat 200, and then the subsequent installation process is completed; during the disassembly of the steam trap, when the valve seat 200 is removed, the small gasket ring 610 and the large gasket ring 620 will also be taken out accordingly, eliminating the installation and removal processes of the small gasket ring 610 and the large gasket ring 620 in the seat installation groove 130.

[0055] In one embodiment, both the small gasket ring 610 and the large gasket ring 620 are elastically clamped to the bottom of the valve seat 200.

[0056] In this embodiment, a simple fixing method for the small gasket ring 610 and the large gasket ring 620 is given. An annular fixing position is provided at the bottom of the valve seat 200, so that the small gasket ring 610 and the large gasket ring 620 can be installed and disassembled conveniently.

[0057] Refer to Figure 1 In one embodiment, a guide post is provided at the top of the valve plate 500, and a guide groove is correspondingly provided inside the valve cover 400 for the guide post. Among them, when the valve plate 500 abuts against the valve seat 200, the guide post is in the guide groove.

[0058] In this embodiment, the installation and movement guidance of the valve plate 500 are realized by forming a sliding fit between the guide post and the guide groove. Specifically, during the installation process, the guide post of the valve plate 500 is inserted into the guide groove of the valve cover 400, so that the position of the valve plate 500 can be standardized; during the operation of the steam trap, the cooperation between the guide post and the guide groove will not come off, so that during the up and down floating process of the valve plate 500, the movement is more regular and the generated noise is also smaller.

[0059] Refer to Figure 1 In one embodiment, a filter chamber 140 is further provided on the outer wall of the valve body 100. The fluid hole 131 is conducted to the fluid hole 131 through the filter chamber 140, and a filtering device is provided in the filter chamber 140.

[0060] In this embodiment, a filtering device is added to the steam trap to make the working process of the entire steam trap more stable. During the working process, after the fluid enters from the inlet channel 110, it passes through the filtering device and then enters the seat installation groove 130 through the fluid hole 131. During this process, the impurities in the fluid can be filtered by the filtering device.

[0061] Refer to Figure 1, in one embodiment, the steam trap further includes a protective cover 700, which is connected to the valve body 100 and encloses the valve cover 400 in the seat mounting groove 130.

[0062] In this embodiment, the valve cover 400 is protected by the protective cover 700, and the preferred connection method of the protective cover 700 is snap connection or buckle connection. The material of the protective cover 700 is preferably stainless steel.

[0063] In summary, for the steam trap with convenient installation provided by the present invention, the thickness of the valve seat 200 includes a columnar section seat 240 and a conical section seat 250, and the conical section seat 250 is in contact with the bowl-shaped wall 133 of the seat mounting groove 130; during the installation and disassembly process, the valve plate 500, the valve cover 400, the sealing ring 300 and the valve seat 200 can form an integral structure, thus optimizing the installation and disassembly process; during the installation process, the conical section seat 250 is adapted to the bowl-shaped wall 133 to achieve guidance, and the sealing effect between the valve seat 200 and the seat mounting groove 130 is improved; during the rotation of the valve cover 400, since there is a circumferential fixation between the valve cover 400 and the valve seat 200, the valve seat 200 is not easily detached, and at the same time, the sealing ring 300 is not rubbed, thereby ensuring the sealing effect of the sealing ring 300.

[0064] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A trap with convenient installation, characterized in that, Comprising: A valve body, with an inlet passage and an outlet passage at both ends respectively. A seat mounting groove is provided on the outer wall of the valve body. A fluid hole leading to the inlet passage is provided at the center of the bottom of the seat mounting groove. A first annular groove leading to the outlet passage is provided around the fluid hole. The lower part of the seat mounting groove is in a tapered frustum shape, forming a bowl-shaped wall; A valve seat, arranged in the seat mounting groove. A through hole corresponding to the fluid hole penetrates in the thickness direction of the middle part of the valve seat. A second annular groove is provided on the upper surface of the valve seat. A conduction passage connecting the second annular groove and the first annular groove is also provided in the thickness direction of the valve seat. The thickness direction of the valve seat includes a columnar section seat connected to the upper end and a conical section seat connected to the lower end. The diameter of the conical section seat is larger than that of the columnar section seat and gradually decreases downward. Among them, the conical section seat is adapted to the bowl-shaped wall; A sealing ring, clamped on the outer periphery of the columnar section seat; A valve cover, connected in the seat mounting groove, abutting against the conical section seat and enclosing to form a thermal clearance cavity. The lower end of the valve cover forms a circumferential fixation with the upper end of the conical section seat. A sealing ring groove corresponding to the sealing ring is provided on the inner wall of the valve cover; A valve plate, arranged in the thermal clearance cavity and covering the second annular groove on the plane.

2. The trap with convenient installation according to claim 1, wherein, The connection mode between the valve cover and the seat mounting groove is a bolt.

3. The trap with convenient installation according to claim 1, characterized in that, A plurality of fixing bolts are provided on the circumference of the lower end of the valve cover. A plurality of fixing grooves corresponding to the plurality of fixing bolts are provided on the upper surface of the conical section seat.

4. The trap with convenient installation according to claim 3, wherein The fixing bolts and the fixing grooves form a snap-fit.

5. The trap with convenient installation according to claim 1, wherein, The steam trap further includes a small gasket ring and a large gasket ring arranged in the seat mounting groove corresponding to the valve seat. The small gasket ring is arranged between the fluid hole and the first annular groove. The large gasket ring surrounds the first annular groove.

6. The trap with convenient installation according to claim 5, characterized in that, Both the small gasket ring and the large gasket ring are detachably connected to the bottom of the valve seat.

7. The trap with convenient installation according to claim 6, characterized in that, Both the small gasket ring and the large gasket ring are elastically clamped to the bottom of the valve seat.

8. The trap with convenient installation according to claim 1, characterized in that, A guide post is provided at the top of the valve plate. A guide groove corresponding to the guide post is provided inside the valve cover. Among them, when the valve plate abuts against the valve seat, the guide post is in the guide groove.

9. The trap with convenient installation according to any one of claims 1 to 8, characterized in that, A filter cavity is also provided on the outer wall of the valve body. The fluid hole is conducted to the fluid hole through the filter cavity. A filtering device is provided in the filter cavity.

10. The trap with convenient installation according to any one of claims 1 to 8, characterized in that, The steam trap further includes a protective cover, which is connected to the valve body and closes the valve cover in the seat mounting groove.

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