Multifunctional steam trap

Abstract

This invention discloses a multifunctional steam trap, relating to the technical field of valves. The invention aims to solve the problem of cumbersome operation in adjusting the shut-off and bypass states of a steam trap. The valve body has an inlet and an outlet at both ends, and an inner cavity within the valve body. A dividing section is provided on the valve body, dividing the inner cavity into an upper cavity and a lower cavity. A first through hole and a second through hole are provided on the dividing section, symmetrically arranged with reference to the center of the valve body. The first through hole communicates with the inlet, and the second through hole communicates with the outlet. The upper cavity and lower cavity are connected through the first and second through holes. A detection hole is also provided on the dividing section, with its channel extending from the side wall of the valve body.

Description

Technical Field

[0001] The invention relates to the technical field of valves, in particular to a multifunctional steam trap. Background Art

[0002] Steam trap is the abbreviation of steam trap, which is used to automatically remove steam condensate and non-condensable gases such as air from heating equipment or steam pipes without leaking steam. Since the steam trap has the function of steam blocking and water drainage, it can make the steam heating equipment evenly heated and make full use of the latent heat of steam to prevent water hammer in the steam pipe.

[0003] With respect to the existing steam trap, it is also necessary to perform bypass or shut-off operations when it is used. Therefore, it is necessary to pre-install a bypass pipeline and a shut-off valve on the external pipeline. When the state in the steam trap needs to be changed, it is necessary to accurately find the pipeline corresponding to the shut-off valve or bypass valve, and then unscrew the shut-off valve or bypass valve. In addition, a certain installation space is left between the shut-off valve and the bypass valve and the steam trap during installation. Therefore, when performing shut-off and bypass operations, it is necessary to move to the front of the corresponding valve and close the valve. Therefore, the existing steam trap has the problem of cumbersome operation for adjusting the shut-off state and bypass state of the steam trap. Summary of the invention

[0004] In order to solve the above problem, that is, the problem of cumbersome operation of adjusting the cut-off state and the bypass state of the steam trap, the present invention proposes a multifunctional steam trap, which includes a valve body, a valve seat, a valve core, a valve cover and a screw plug, the top end of the valve body is connected to the valve cover, the bottom end of the valve body is connected to the screw plug, the valve core is arranged between the valve cover and the valve body, the top end of the valve core is connected to the valve cover, the two ends of the valve body are provided with a water inlet and a water outlet, the valve body is provided with an inner cavity, the valve body is provided with a dividing part, the dividing part divides the inner cavity of the valve body into an upper cavity and a lower cavity, the dividing part is provided with a first through hole and a second through hole, the first through hole and the second through hole are symmetrically arranged with reference to the center of the valve body, the first through hole is connected to the water inlet, the second through hole is connected to the water outlet, the upper cavity and the lower cavity are connected through the first through hole and the second through hole, and the dividing part is also provided with a detection hole, the channel of the detection hole is led out from the side wall surface of the valve body;

[0005] The valve seat is arranged in the upper cavity, the valve core is arranged above the valve seat, a connecting rod is arranged on the valve seat, the valve seat passes through the dividing part through the connecting rod and is connected to the adjusting disk located in the lower cavity, and the valve seat is used to drive the adjusting disk to rotate synchronously;

[0006] Two adjusting holes are provided on the adjusting disk, a cavity is provided in the valve seat, and a first through hole, a second through hole and a third through hole communicating with the cavity are provided on the valve seat;

[0007] During the rotation of the valve seat on the valve body, the multifunctional steam trap has four flow states, including detection state, drain state, bypass state and cut-off state. When the valve seat rotates until the third perforation is connected with the first through hole and the second perforation is connected with the detection hole, the multifunctional steam trap is in the detection state;

[0008] When the valve seat rotates until the first perforation is connected to the first through hole and the second perforation is connected to the second through hole, the multifunctional steam trap is in a steam trap state;

[0009] When the valve seat rotates until the two adjustment holes of the adjustment disk are connected with the first through hole and the second through hole respectively, the multifunctional steam trap is in a bypass state;

[0010] When the valve seat rotates until the first perforation, the second perforation, the third perforation and the two adjustment holes are not connected with the first through hole and the second through hole, the multifunctional steam trap is in a cut-off state.

[0011] By adopting the above technical solution, the valve seat can be rotated to adjust different flow states of the liquid in the multifunctional steam trap.

[0012] The present invention is further configured as follows: a limiting hole is provided on the adjusting disk, a connecting rod on the valve seat passes through the limiting hole and penetrates the adjusting disk, a shape of the connecting rod passing through the adjusting disk is consistent with the shape of the limiting hole, and the connecting rod drives the adjusting disk to rotate synchronously through the limiting hole.

[0013] By adopting the above technical solution, the connecting rod drives the adjusting disk to rotate synchronously through the limiting hole.

[0014] The present invention is further configured as follows: the limiting hole is in a semicircular or waist shape.

[0015] The present invention is further configured as follows: a check nut is provided at the bottom end of the connecting rod, the connecting rod is threadedly connected to the check nut, and the check nut is used to fit the adjusting disk onto the valve body.

[0016] By adopting the above technical solution, the check nut limits the adjusting disk.

[0017] The present invention is further configured as follows: an indicator plate is provided on the valve body, a label is provided on the valve cover, and during the rotation of the valve seat, the indicator plate points to different positions on the label to indicate the flow status in the multifunctional steam trap.

[0018] By adopting the above technical solution, the flow status in the multifunctional steam trap can be quickly known by observing the corresponding relationship between the indicator plate and the nameplate.

[0019] The beneficial technical effects of the present invention are:

[0020] 1. By rotating the valve seat, the different communication states between the first through hole, the second through hole and the detection hole of the valve body and the valve seat and the adjusting disk are adjusted to achieve different flow states in the steam trap and realize quick adjustment of the state of the multi-functional steam trap.

[0021] 2. The indicator plate can point to the nameplate. By observing the corresponding relationship between the indicator plate and the nameplate, the working status of the valve body can be known. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The schematic diagram of the structure of the multifunctional steam trap of the present invention is shown.

[0023] Figure 2 A structural schematic diagram of a valve body of a multifunctional steam trap according to the present invention is shown.

[0024] Figure 3 A cross-sectional view of a valve body of the multifunctional steam trap according to the present invention is shown.

[0025] Figure 4 A schematic structural diagram of a valve seat of a multifunctional steam trap according to the present invention is shown.

[0026] Figure 5 Shows Figure 4 Bottom view of .

[0027] Figure 6 A schematic structural diagram of the multifunctional steam trap of the present invention with the valve body omitted is shown.

[0028] Figure 7 An exploded diagram of the detection state of the multifunctional steam trap of the present invention is shown.

[0029] Figure 8 An exploded diagram of the multifunctional steam trap of the present invention is shown in the steam trap state.

[0030] Fig. 9 An exploded view of the bypass state of the multifunctional steam trap of the present invention is shown.

[0031] Fig.10 An exploded view of the multifunctional steam trap of the present invention in a cut-off state is shown.

[0032] Figure numerals: 1. valve body; 11. detection hole; 12. water inlet; 13. water outlet; 14. first through hole; 15. second through hole; 2. valve seat; 21. first through hole; 22. second through hole; 23. third through hole; 24. connecting rod; 4. adjusting disk; 41. limiting hole; 42. first adjusting hole; 43. second adjusting hole; 5. partition; 6. valve cover; 7. screw plug; 8. nameplate; 9. indicator plate; 10. fixing pin. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0034] See also Figure 1 The present invention proposes a multifunctional steam trap, comprising a valve body 1, a valve seat 2 and a valve core. The valve body 1 is placed horizontally, and a water inlet 12 and a water outlet 13 are provided at opposite ends of the valve body 1. The water inlet 12 and the water outlet 13 of the valve body 1 are connected to an external pipeline through a flange. Figure 2 as well as Figure 3 As shown, an inner cavity is provided in the valve body 1, and a partition is provided in the middle of the valve body 1. The partition divides the inner cavity into an upper cavity and a lower cavity. A vertically arranged first through hole 14 and a second through hole 15 are provided on the partition. The first through hole 14 and the second through hole 15 are symmetrically arranged with reference to the central vertical axis of the valve body 1. The upper cavity is connected with the lower cavity through the first through hole 14 and the second through hole 15. The first through hole 14 is also connected with the water inlet 12, and the second through hole 15 is also connected with the water outlet 13. A detection hole 11 is provided at one end of the partition facing the upper cavity. The top end of the detection hole 11 is arranged at a position rotated 45 degrees counterclockwise from the second through hole 15. The channel of the detection hole 11 is bent downward and led out from the side wall surface of the partition.

[0035] The valve seat 2 is arranged in the upper cavity of the valve body 1. Figure 4 as well as Figure 5 As shown, the bottom end of the valve seat 2 is integrally formed with a connecting rod 24, the connecting rod 24 is a long straight cylinder, the valve seat 2 is a cylinder with an open top, the connecting rod 24 is coaxially arranged with the valve seat 2, one end of the connecting rod 24 is connected to the valve seat 2, and the other end of the connecting rod 24 passes through the dividing portion of the valve body 1 and is connected to the adjusting disk 4 located in the lower cavity, as shown in FIG. Figure 6 As shown, a check nut is provided at the end of the connecting rod 24 , and the connecting rod 24 is threadedly connected to the check nut, and the check nut can press the adjusting disk 4 against the valve body 1 .

[0036] A limiting hole 41 is provided at the center of the adjusting disk 4, and the connecting rod 24 passes through the limiting hole 41. The shape of the connecting rod 24 passing through the adjusting disk 4 is consistent with the shape of the limiting hole 41. The limiting hole 41 is semicircular or waist-shaped. The present invention is described with the limiting hole 41 as a semicircle. The connecting rod 24 can abut against the limiting hole 41 by milling a vertical plane through factory processing, and then the valve seat 2 drives the adjusting disk 4 to rotate synchronously through the connecting rod 24 and the limiting hole 41. Two adjusting holes are provided on the adjusting disk 4, and the two adjusting holes are respectively a first adjusting hole 42 and a second adjusting hole 43. During the rotation of the valve seat 2, the two adjusting holes can be connected with the first through hole 14 and the second through hole 15 of the valve body 1 respectively.

[0037] It should be noted that the diameters of the first through hole 21, the second through hole 22, the first through hole 14, the second through hole 15 and the two adjustment holes are consistent, and the diameter of the third through hole 23 is consistent with the diameter of the detection hole 11 and is smaller than the diameter of the first through hole 21. Since the detection hole 11 is only used to detect the airtightness in the valve body 1, the diameters of the detection hole 11 and the third through hole 23 are reduced to avoid waste of funds.

[0038] like Figure 4 As shown, a cavity is provided in the valve seat 2, and a first through hole 21, a second through hole 22 and a third through hole 23 connected to the cavity are provided on the bottom surface of the valve seat 2. The third through hole 23 is located at a position 45 degrees rotated clockwise from the first through hole 21. The positions of the through holes on the valve seat 2 are such that during the rotation of the valve seat 2 on the valve body 1, the first through hole 21, the second through hole 22 and the third through hole 23 can be connected to the first through hole 14, the second through hole 15 and the detection hole 11 respectively.

[0039] The valve core is arranged above the valve body 1, and the valve core adopts a bellows. The valve core and the valve seat 2 are arranged coaxially. Since the bellows steam trap needs to realize the unblocking and shutoff of the liquid in the valve body 1 through the expansion and contraction of the bellows when in use, the channel of the second through hole 22 on the valve seat 2 is bent upward and led vertically upward from the central axis of the valve body 1. The top opening of the second through hole 22 is arranged toward the bellows, and a valve disc is integrally formed at one end of the bellows facing the valve seat 2, and the end of the valve disc is chamfered at a flat angle.

[0040] A filter screen is arranged in the cavity between the valve seat 2 and the valve core. The outer diameter of the filter screen is consistent with the inner wall size of the valve seat 2. The inner diameter of the filter screen is consistent with the outer diameter of the second perforation 22. The inner wall surface of the valve seat 2 is provided with an annular groove for placing the filter screen.

[0041] A valve cover 6 is arranged above the valve core, and the top of the valve core is arranged as a flat head or a cross flat head. The end of the valve core passes through the center of the valve cover 6 and is threadedly connected to the valve cover 6. Then, the distance between the valve core and the valve seat 2 can be adjusted by adjusting the end of the valve core through a screwing tool.

[0042] like Figure 6As shown, the valve cover 6 is also fixedly connected to the outer edge of the valve seat 2 by a number of bolts. The valve cover 6 has an annular threaded opening extending upward along its central axis. The protective cap is threadedly connected to the valve cover 6 through the annular threaded opening, and then the valve core end can be directly adjusted through the threaded opening by unscrewing the protective cap. A sign 8 is provided on the upper surface of the valve cover 6, and an indicator plate 9 is provided on the side wall of the valve body 1. The sign 8 is bonded and fixed to the valve cover 6. The bottom end of the indicator plate 9 is threadedly connected to the valve body 1 by bolts. The top end of the indicator plate 9 is bent toward the valve cover 6 and can fit with the sign 8. The fitting part of the indicator plate 9 is set in an arc shape. The top end of the indicator plate 9 is set with a directional arrow. A directional arrow is set every 45 degrees on the sign 8 to indicate the flow state of the valve body 1. When the valve seat 2 rotates, the directional arrows of the indicator plate 9 can correspond to the directional arrows of the sign 8 respectively.

[0043] A screw plug 7 is arranged in the lower cavity of the valve body 1 . The screw plug 7 is an external hexagonal screw plug 7 . An internal thread is provided at the bottom end of the valve body 1 . The valve body 1 is threadedly connected to the screw plug 7 . The screw plug 7 can also cover the check nut on the connecting rod 24 .

[0044] In addition, in order to avoid friction between the valve seat 2 and the valve body 1 when rotating, long-term use will cause wear to the valve body 1, and the cost of replacing the valve body 1 is large, so the present invention respectively sets a partition 5 in the upper cavity and the lower cavity of the valve body 1, the valve seat 2 is connected to the valve body 1 through the upper partition 5, and the adjustment disk 4 is connected to the valve body 1 through the lower partition 5, so that the partition 5 can be replaced during product maintenance. The partition 5 is provided with water flow holes corresponding to the surface of the valve body 1 connected thereto, that is, the upper partition 5 is provided with water flow holes corresponding to the first through hole 14, the second through hole 15 and the detection hole 11, and the lower partition 5 is provided with water flow holes corresponding to the first through hole 14 and the second through hole 15, so that the two partitions 5 will not affect the flow of liquid in the valve body 1.

[0045] In order to prevent the upper partition plate 5 and the lower partition plate 5 from rotating during the rotation of the valve seat 2, the upper partition plate 5 and the lower partition plate 5 are fixedly connected to the valve body 1 by a fixing pin 10. The fixing pin 10 is an annular cylinder. The outer wall surface of the fixing pin 10 abuts against the partition plate 5 and the valve body 1, so that the partition plate 5 cannot rotate with the rotation of the valve seat 2.

[0046] When the valve seat 2 rotates on the valve body 1, there will be connected states, namely, detection state, drain state, bypass state and cut-off state. Figure 7 As shown, at this time, the multifunctional steam trap is in the detection state, the first through hole 14 is connected with the third through hole 23, and the detection hole 11 is connected with the second through hole 22, so that the liquid in the external pipeline flows upward through the first through hole 14, and flows out from the third through hole 23 and the detection hole 11 to the side wall of the valve body 1 after passing through the cavity of the valve seat 2, thereby realizing the detection function.

[0047] It should be noted that the inspection of the valve body 1 is a necessary operation before the installation of the valve body 1. The inspection hole 11 is connected to the drain port through a water collector, which is a common device in the boiler system. If the water collector can be activated after the water inlet 12 passes water, it can be proved that the drain port is in a closed state and the airtightness of the valve body 1 is good. At the same time, the inspection can also be carried out without the influence of back pressure.

[0048] exist Figure 7 On the basis of, turn the valve seat 2 45 degrees clockwise, as Figure 8 As shown, at this time, the multifunctional steam trap is in a steam trap state, the first through hole 14 is connected with the first perforation 21, and the second through hole 15 is connected with the second perforation 22, so that the liquid in the external pipeline flows upward through the first through hole 14, and flows out from the water outlet 13 through the first perforation 21, the cavity of the valve seat 2, the second perforation 22 and the second through hole 15, thereby realizing the steam trap function.

[0049] exist Figure 8 On the basis of, turn the valve seat 2 45 degrees clockwise, as Fig. 9 As shown, the multifunctional steam trap is in a bypass state at this time, and the two adjustment holes are respectively connected to the first through hole 14 and the second through hole 15, so that the liquid in the external pipeline flows downward through the first through hole 14 to the lower cavity of the valve body 1. At this time, unscrewing the screw plug 7 on the valve body 1 can discharge the liquid to realize the bypass function.

[0050] exist Fig. 9 On the basis of, move the valve seat 2 clockwise 45 degrees, such as Fig.10 As shown, at this time, the multifunctional steam trap is in a cut-off state, the first through hole 14 and the second through hole 15 are both connected, so that the liquid in the external pipeline cannot flow in the valve body 1, achieving the cut-off function.

[0051] In summary, the present invention combines the bypass, drain and cut-off functions of the steam pipeline into one, and adds a detection function. By adjusting the valve seat 2, the different flow states of the valve body 1 can be quickly changed, and the state of the valve body 1 can be quickly adjusted. At the same time, when the multifunctional steam trap is damaged, only the valve seat 2 needs to be replaced, and there is no need to replace the cut-off valve or bypass valve or cut-off valve in the traditional pipeline as a whole, which saves costs and makes maintenance more convenient.

[0052] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0053] In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0054] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0056] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A multifunctional steam trap, comprising a valve body (1), a valve seat (2), a valve core, a valve cover (6) and a screw plug (7), wherein the top end of the valve body (1) is connected to the valve cover (6), the bottom end of the valve body (1) is connected to the screw plug (7), the valve core is arranged between the valve cover (6) and the valve body (1), and the top end of the valve core is connected to the valve cover (6), characterized in that: A water inlet (12) and a water outlet (13) are provided at both ends of the valve body (1), an inner cavity is provided in the valve body (1), a dividing portion is provided on the valve body (1), the dividing portion divides the inner cavity of the valve body (1) into an upper cavity and a lower cavity, a first through hole (14) and a second through hole (15) are provided on the dividing portion, the first through hole (14) and the second through hole (15) are symmetrically arranged with reference to the center of the valve body (1), the first through hole (14) is connected to the water inlet (12), the second through hole (15) is connected to the water outlet (13), the upper cavity and the lower cavity are connected through the first through hole (14) and the second through hole (15), and a detection hole (11) is also provided on the dividing portion, the channel of the detection hole (11) is led out from the side wall surface of the valve body (1); The valve seat (2) is arranged in the upper cavity, the valve core is arranged above the valve seat (2), a connecting rod (24) is arranged on the valve seat (2), the valve seat (2) passes through the dividing portion through the connecting rod (24) and is connected to the adjusting disk (4) located in the lower cavity, and the valve seat (2) is used to drive the adjusting disk (4) to rotate synchronously; The regulating disk (4) is provided with two regulating holes, a cavity is provided in the valve seat (2), and the valve seat (2) is provided with a first through hole (21), a second through hole (22) and a third through hole (23) which are communicated with the cavity; During the rotation of the valve seat (2) on the valve body (1), the multifunctional steam trap has four flow states, including a detection state, a drain state, a bypass state, and a cut-off state. When the valve seat (2) rotates until the third through hole (23) is connected to the first through hole (14) and the second through hole (22) is connected to the detection hole (11), the multifunctional steam trap is in the detection state. When the valve seat (2) rotates until the first through hole (21) is connected to the first through hole (14) and the second through hole (22) is connected to the second through hole (15), the multifunctional steam trap is in a steam trap state; When the valve seat (2) rotates until the two adjustment holes of the adjustment disk (4) are connected to the first through hole (14) and the second through hole (15) respectively, the multifunctional steam trap is in a bypass state; When the valve seat (2) rotates until the first through hole (21), the second through hole (22), the third through hole (23) and the two adjustment holes are not connected to the first through hole (14) and the second through hole (15), the multifunctional steam trap is in a cut-off state.

2. The multifunctional steam trap according to claim 1, characterized in that: A limiting hole (41) is provided on the regulating disk (4), and a connecting rod (24) on the valve seat (2) passes through the limiting hole (41) and penetrates the regulating disk (4). The shape of the connecting rod (24) where it passes through the regulating disk (4) is consistent with the shape of the limiting hole (41), and the connecting rod (24) drives the regulating disk (4) to rotate synchronously through the limiting hole (41).

3. The multifunctional steam trap according to claim 2, characterized in that: The limiting hole (41) is in a semicircular or waist-shaped shape.

4. The multifunctional steam trap according to claim 1, characterized in that: A check nut is provided at the bottom end of the connecting rod (24), and the connecting rod (24) is threadedly connected to the check nut. The check nut is used to fit the adjusting disk (4) onto the valve body (1).

5. The multifunctional steam trap according to claim 1, characterized in that: An indicator plate (9) is arranged on the valve body (1), and a sign (8) is arranged on the valve cover (6). When the valve seat (2) rotates, the indicator plate (9) points to different positions on the sign (8) to indicate the flow status in the multifunctional steam trap.

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