阅读说明：本技术 多功能蒸汽疏水阀 (Multifunctional steam trap ) 是由 于淼 于 2020-04-07 设计创作，主要内容包括：本发明提供了一种多功能蒸汽疏水阀,包括阀体、阀座、功能切换组件、阀盖、底端盖、疏水功能模块和阀芯,阀体上设置有进口和出口,内部设置有多条与进口和出口连通的流体通路,阀座活动穿设在阀体顶部,阀盖盖设在阀座顶部；疏水功能模块一端抵接在阀盖上,另一端与阀芯连接,能带动阀芯移动以抵接阀座或脱离阀座；底端盖设置在阀体底部,功能切换组件设置在阀座上且横跨每条流体通路；当阀座运动时能带动功能切换组件运动使其中任一条流体通路处于连通状态或全部的流体通路处于截止状态,以控制多功能蒸汽疏水阀在不同功能模式中切换。本发明可手动切换多种功能模式,兼具截止、疏水和导通功能,可根据实际需要选择使用不同的功能模式。(The invention provides a multifunctional steam trap, which comprises a valve body, a valve seat, a function switching assembly, a valve cover, a bottom end cover, a drainage function module and a valve core, wherein the valve body is provided with an inlet and an outlet, a plurality of fluid passages communicated with the inlet and the outlet are arranged in the valve body, the valve seat is movably arranged at the top of the valve body in a penetrating way, and the valve cover is arranged at the top of the valve seat; one end of the drainage function module is abutted against the valve cover, and the other end of the drainage function module is connected with the valve core and can drive the valve core to move so as to abut against the valve seat or separate from the valve seat; the bottom end cover is arranged at the bottom of the valve body, and the function switching assembly is arranged on the valve seat and spans each fluid passage; when the valve seat moves, the function switching assembly can be driven to move, so that any one fluid passage is in a communication state or all the fluid passages are in a cut-off state, and the multifunctional steam trap is controlled to be switched in different function modes. The invention can manually switch a plurality of functional modes, has the functions of cut-off, drainage and conduction, and can select different functional modes according to actual requirements.)

1. A multifunctional steam trap is characterized by comprising a valve body, a valve seat, a function switching assembly, a valve cover, a bottom end cover, a drainage function module and a valve core, wherein the valve body is provided with an inlet and an outlet, a plurality of fluid passages communicated with the inlet and the outlet are arranged in the valve body, the valve seat is movably arranged at the top of the valve body in a penetrating manner, and the valve cover is arranged at the top of the valve seat; one end of the drainage function module is abutted against the valve cover, and the other end of the drainage function module is connected with the valve core and can drive the valve core to move so as to abut against the valve seat or separate from the valve seat; the bottom end cap is arranged at the bottom of the valve body, and the function switching assembly is arranged on the valve seat and spans each fluid passage; when the valve seat moves, the function switching assembly can be driven to move, any one of the fluid passages is in a communication state or all the fluid passages are in a cut-off state, and therefore the multifunctional steam trap is controlled to be switched among different function modes.

2. The multifunction steam trap of claim 1 wherein said multifunction steam trap has three functional modes, a stop mode, a bypass mode and a drain mode; two of the fluid passages, a first of the fluid passages being in communication when the multi-functional steam trap is in a hydrophobic mode; when the multifunctional steam trap is in a bypass mode, a second of the fluid passages is communicated; when the multi-functional steam trap is in a stop mode, both of the fluid passages are blocked.

3. The multifunctional steam trap of claim 2 wherein the central portion of the valve body is a solid structure and the lower and top portions of the valve body are hollow; solid construction department of valve body has seted up three through-hole that runs through along vertical direction, is first hole, second hole and third hole respectively, and is three run through the through-hole and be sharp setting, import with the export is seted up corresponding to the solid construction position on the valve body, just import with first hole intercommunication, export with third hole intercommunication, the disk seat is worn to establish the second is downthehole, the function switching subassembly includes first switching structure and second switching structure, first switching structure installs and is located top hollow structure on the disk seat, second switching structure installs and is located bottom hollow structure on the disk seat.

4. The multifunctional steam trap of claim 3 wherein the valve seat comprises a disk portion, a body portion and a shaft portion, the disk portion being of a larger gauge than the hollow top structure of the valve body, the valve cover being attached to the disk portion; the specification and shape of the body part are equal to those of a hollow structure at the top of the valve body, and a sealing structure is arranged between the body part and the side wall of the inner cavity of the valve body; the specification and shape of the shaft part are equal to those of the second hole, and the tail end of the shaft part extends to the lower end of the hollow structure at the bottom of the valve body; the first switching structure is provided on the disc portion and the body portion, and the second switching structure is provided on the shaft portion.

5. The multi-functional steam trap of claim 4 wherein the first switching structure comprises a fourth hole and a fifth hole, the fourth hole being a straight through hole disposed in the disk portion and the body portion edge portion; the fifth hole is a through inclined hole, the top of the fifth hole is arranged between the disc part and the body part, and the bottom of the fifth hole is arranged on the side part of the body part; the second switching structure comprises a bottom plate, and a sixth hole and a seventh hole which are oppositely arranged on the bottom plate; the sixth hole and the fourth hole are arranged in a staggered mode, and an included angle between the sixth hole and the fourth hole is 45 degrees;

a first one of the fluid passages is enclosed among the first hole, the fourth hole, the top of the valve seat, the inner cavity of the valve cover, the fifth hole and the third hole;

a second piece of the fluid passage is enclosed among the first hole, the sixth hole, the valve body bottom hollow structure, the seventh hole and the third hole;

when the multifunctional steam trap is in a drainage mode, the valve seat rotates to a first designated position, the fourth hole and the first hole are superposed to form a coaxial structure, and the fifth hole and the third hole are superposed to form a coaxial structure; the sixth and seventh bores are offset from the first and third bores, respectively;

when the multifunctional steam trap is in a bypass mode, the valve seat rotates to a second appointed position, the fourth hole is staggered with the first hole, and the fifth hole is staggered with the third hole; said sixth and seventh bores being coincident with said first and third bores, respectively, in a coaxial configuration;

when the multifunctional steam trap is in a stop mode, the valve seat rotates to a third designated position, and the fourth hole, the fifth hole, the sixth hole and the seventh hole are respectively staggered with the first hole and the third hole.

6. The multifunctional steam trap as claimed in claim 5, wherein the valve body is provided with an indicating line, and the valve cover is provided with a mark point corresponding to the first designated position, the second designated position and the third designated position respectively.

7. The multi-functional steam trap of claim 5 wherein the lower end of the shaft portion is provided with a cut surface at a location that is connected to the bottom plate, the bottom plate is provided with a fastening hole having the same cross-sectional shape as the shaft portion, and the bottom plate is engaged with the shaft portion.

8. The multifunctional steam trap of claim 1, 2, 3, 4, 5, 6 or 7 wherein the hydrophobic module is made of a corrugated heat pipe filled with a heat sensitive medium.

9. The multifunctional steam trap of claim 1, 2, 3, 4, 5, 6 or 7 further comprising a filter element disposed on top of said valve seat and fitted over said valve core.

10. The warm-pressing direct-acting steam trap according to claim 7, wherein a stopper is provided on the top of the heat pipe, and the heat pipe can be extended only downward by the stopper.

Technical Field

The invention relates to the technical field of fluid equipment, in particular to a heat pipe type temperature-change multifunctional steam trap.

Background

The steam trap has the function of automatically discharging continuously generated condensed water, air and non-condensable gas on steam heating equipment or a steam pipe network. Meanwhile, the steam drain valve is also called a steam-resistant drain valve because the steam is prevented from being discharged along with water.

At present, the common thermal static trap and thermal dynamic trap can only play a role of draining water, but have no other functions, and have single function and narrow application range.

Disclosure of Invention

The invention aims to provide a multifunctional steam trap to solve the technical problem of single function of a trap in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides a multifunctional steam trap which comprises a valve body, a valve seat, a function switching assembly, a valve cover, a bottom end cover, a drainage function module and a valve core, wherein the valve body is provided with an inlet and an outlet, a plurality of fluid passages communicated with the inlet and the outlet are arranged in the valve body, the valve seat is movably arranged at the top of the valve body in a penetrating way, and the valve cover is arranged at the top of the valve seat; one end of the drainage function module is abutted against the valve cover, and the other end of the drainage function module is connected with the valve core and can drive the valve core to move so as to abut against the valve seat or separate from the valve seat; the bottom end cap is arranged at the bottom of the valve body, and the function switching assembly is arranged on the valve seat and spans each fluid passage; when the valve seat moves, the function switching assembly can be driven to move, any one of the fluid passages is in a communication state or all the fluid passages are in a cut-off state, and therefore the multifunctional steam trap is controlled to be switched among different function modes.

On the basis of the technical scheme, the invention can be further improved as follows.

As a further improvement of the invention, the multifunctional steam trap has three functional modes, namely a stop mode, a bypass mode and a drainage mode; two of the fluid passages, a first of the fluid passages being in communication when the multi-functional steam trap is in a hydrophobic mode; when the multifunctional steam trap is in a bypass mode, a second of the fluid passages is communicated; when the multi-functional steam trap is in a stop mode, both of the fluid passages are blocked.

As a further improvement of the invention, the middle part in the valve body is of a solid structure, and the lower part and the top part in the valve body are of hollow structures; solid construction department of valve body has seted up three through-hole that runs through along vertical direction, is first hole, second hole and third hole respectively, and is three run through the through-hole and be sharp setting, import with the export is seted up corresponding to the solid construction position on the valve body, just import with first hole intercommunication, export with third hole intercommunication, the disk seat is worn to establish the second is downthehole, the function switching subassembly includes first switching structure and second switching structure, first switching structure installs and is located top hollow structure on the disk seat, second switching structure installs and is located bottom hollow structure on the disk seat.

As a further improvement of the invention, the valve seat comprises a disk part, a body part and a shaft part, the specification of the disk part is larger than that of the hollow structure at the top of the valve body, and the valve cover is connected on the disk part; the specification and shape of the body part are equal to those of a hollow structure at the top of the valve body, and a sealing structure is arranged between the body part and the side wall of the inner cavity of the valve body; the specification and shape of the shaft part are equal to those of the second hole, and the tail end of the shaft part extends to the lower end of the hollow structure at the bottom of the valve body; the first switching structure is provided on the disc portion and the body portion, and the second switching structure is provided on the shaft portion.

As a further improvement of the present invention, the first switching structure includes a fourth hole and a fifth hole, the fourth hole is a through straight hole and is provided in the disk portion and the body side portion; the fifth hole is a through inclined hole, the top of the fifth hole is arranged between the disc part and the body part, and the bottom of the fifth hole is arranged on the side part of the body part; the second switching structure comprises a bottom plate, and a sixth hole and a seventh hole which are oppositely arranged on the bottom plate; the sixth hole and the fourth hole are arranged in a staggered mode, and an included angle between the sixth hole and the fourth hole is 45 degrees;

a first one of the fluid passages is enclosed among the first hole, the fourth hole, the top of the valve seat, the inner cavity of the valve cover, the fifth hole and the third hole;

a second piece of the fluid passage is enclosed among the first hole, the sixth hole, the valve body bottom hollow structure, the seventh hole and the third hole;

when the multifunctional steam trap is in a drainage mode, the valve seat rotates to a first designated position, the fourth hole and the first hole are superposed to form a coaxial structure, and the fifth hole and the third hole are superposed to form a coaxial structure; the sixth and seventh bores are offset from the first and third bores, respectively;

when the multifunctional steam trap is in a bypass mode, the valve seat rotates to a second appointed position, the fourth hole is staggered with the first hole, and the fifth hole is staggered with the third hole; said sixth and seventh bores being coincident with said first and third bores, respectively, in a coaxial configuration;

when the multifunctional steam trap is in a stop mode, the valve seat rotates to a third designated position, and the fourth hole, the fifth hole, the sixth hole and the seventh hole are respectively staggered with the first hole and the third hole.

As a further improvement of the present invention, an indication line is disposed on the valve body, and marking points are disposed on the valve cover corresponding to the first designated position, the second designated position, and the third designated position, respectively.

As a further improvement of the invention, the lower end of the shaft part is connected with the bottom plate, a tangent plane is arranged, the bottom plate is provided with a fixing hole with the same shape of the cross section as the corresponding position of the shaft part, and the bottom plate is clamped on the shaft part.

As a further improvement of the invention, the hydrophobic function module is made of a corrugated heat pipe, and a thermosensitive medium is filled in the heat pipe.

As a further improvement of the invention, the valve further comprises a filter element, wherein the filter element is arranged at the top of the valve seat and sleeved on the valve core.

As a further improvement of the present invention, a limiting member is disposed on the top of the heat pipe, and the heat pipe can only extend downwards through the limiting member.

As a further improvement of the invention, the valve further comprises an adjusting piece arranged between the valve cover and the limiting piece, wherein a fixing groove is arranged at the top of an inner cavity of the valve cover, and a bolt adjusting hole is arranged at the top of the limiting piece; one end of the adjusting piece is screwed on the adjusting bolt hole, the other end of the adjusting piece is clamped in the fixing groove, and the depth of the adjusting piece extending into the limiting piece is adjustable.

As a further improvement of the invention, the thermal media is made of a material that flows in only one dimension when heated.

As a further improvement of the invention, the heat-sensitive medium is a mixture of biphenyl ether and liquid ammonia, wherein the content of the biphenyl ether is 60% -70%, and the content of the liquid ammonia is 30% -40%.

As a further improvement of the invention, the wave number of the heat pipe is 8-11.

As a further improvement of the present invention, the top of the limiting member abuts against the top of the inner cavity of the valve cover, and the bottom of the limiting member is provided with a limiting slot for clamping the heat pipe.

As a further improvement of the present invention, the valve core includes an end portion and a stainless steel valve flap, the end portion is connected to the drainage function module, the stainless steel valve flap is contactably connected to the second hole, an arc portion is disposed at a terminal of the stainless steel valve flap, and a recess portion adapted to the arc portion is disposed at a top of the second hole.

As a further improvement of the invention, the arc-shaped part is of a semicircular structure.

Compared with the prior art, the invention has the following beneficial effects:

the heat pipe type temperature-change multifunctional steam trap provided by the invention can be manually switched into a plurality of functional modes, has the functions of stopping, draining and conducting, can select different functional modes according to actual needs, and when the trap is in the STOP (STOP) mode: the inlet, the outlet and the bypass part are closed, and fluid cannot flow into the drainage unit in the valve cover or flow out of the bypass part, so that the filter can be cleaned and the heat pipe can be overhauled; when in BY-PASS mode: the fluid directly flows to the outlet through a bypass part of a hollow structure at the bottom of the valve body, and the position is selected when the pipeline is installed for sewage discharge or when a large amount of condensed water is discharged at the beginning of operation; when in TRAP (hydrophobic) mode: when the steam trap is in the position, the steam trap performs a normal draining action, and condensed water flows from the inlet to the outlet through the steam trap and does not flow out of the bypass part; through the structural design, the product has wider application range and stronger adaptability; a temperature control type steam-water separation mode is adopted, a heat pipe technology is utilized, a heat sensitive medium is filled, the subtle difference between the water temperature and the steam temperature can be sensed, and when steam is met, a valve hole is closed, so that the steam leakage is prevented; when water is met (even if the steam contains a trace amount of water), the drainage gap is automatically regulated and controlled to drain the water, and when the amount of condensed water in the pipeline is increased, the drainage gap is automatically increased to drain the condensed water in time; the steam-water separation performance is good, the steam-water separation device is used on a low-pressure steam pipe network and small and medium-sized heat exchange equipment, zero steam leakage is achieved, the heat exchange efficiency is improved, the back pressure degree is high (up to 80 percent), the steam-water separation device can be used for a condensate water recovery system, the energy waste is solved, and the thermal pollution of the atmospheric environment is reduced; when the thermosensitive element as the hydrophobic functional module moves axially, the defect of metal fatigue of the traditional steam trap is overcome, the sensitivity of the switch valve is extremely high, the thermosensitive element is made of 304 stainless steel and high-temperature heat treatment process, the corrosion resistance is good, and the defects of easy damage and short service life of the steam trap are overcome.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a top view of the multi-functional steam trap of the present invention;

FIG. 2 is a cross-sectional view along AA in FIG. 1;

FIG. 3 is a cross-sectional view taken along line BB of FIG. 1;

FIG. 4 is a fluid flow diagram of the multi-functional steam trap of the present invention in a shut-off function;

FIG. 5 is a fluid flow diagram of the multi-functional steam trap of the present invention in a bypass function;

FIG. 6 is a fluid flow diagram of the multi-functional steam trap of the present invention in a hydrophobic function;

FIG. 7 is a top view of a valve seat in the multi-functional steam trap of the present invention;

FIG. 8 is a top view of the base plate of the multi-functional steam trap of the present invention.

FIG. 1, valve body; 11. an inlet; 12. an outlet; 13. a first hole; 14. a second hole; 15. a third aperture; 16. a fourth aperture; 17. a fifth aperture; 18. a sixth hole; 19. a seventh hole; 10. a base plate; 2. a valve seat; 21. a disk portion; 22. a body portion; 23. a shaft portion; 3. a valve cover; 4. a bottom end cap; 5. a hydrophobic functional module; 6. a valve core; 7. a filter element; 8. a limiting member; 9. an adjustment member; 100. an indicator line; 200. and marking points.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

As shown in fig. 2 and 3, the invention provides a multifunctional steam trap, which comprises a valve body 1, a valve seat 2, a function switching assembly, a valve cover 3, a bottom end cover 4, a drainage function module 5 and a valve core 6, wherein the valve body 1 is provided with an inlet 11 and an outlet 12, a plurality of fluid passages communicated with the inlet 11 and the outlet 12 are arranged in the valve body 1, the valve seat 2 is movably arranged at the top of the valve body 1 in a penetrating manner, the valve cover 3 is arranged at the top of the valve seat 2 in a covering manner, and the valve cover 3 and the valve seat 2 are; one end of the drainage function module 5 is abutted against the valve cover 3, and the other end of the drainage function module is connected with the valve core 6 and can drive the valve core 6 to move so as to abut against the valve seat 2 or separate from the valve seat 2; the bottom end cover 4 is arranged at the bottom of the valve body 1, and the function switching assembly is arranged on the valve seat 2 and spans each fluid passage; when the valve seat 2 moves, the function switching assembly can be driven to move, so that any one fluid passage is in a communication state or all the fluid passages are in a cut-off state, and the multifunctional steam trap is controlled to switch in different function modes.

Specifically, the multifunctional steam trap has three functional modes, namely a stop (stop) mode, a bypass (by-pass) mode and a trap (trap) mode; the first fluid passage is communicated with the drainage channel when the multifunctional steam trap is in a drainage mode; when the multifunctional steam trap is in a bypass mode, the second fluid passage is communicated with the bypass passage; when the multifunctional steam trap is in a stop mode, the two fluid passages, namely the drainage passage and the bypass passage, are all stopped.

As an optional implementation mode, the middle position in the valve body 1 is of a solid structure, and the lower part and the top position in the valve body 1 are of a hollow structure; three through-hole that runs through has been seted up along vertical direction in the solid construction department of valve body 1, be first hole 13 respectively, second hole 14 and third hole 15, three through-hole that runs through is the sharp setting, import 11 and export 12 are seted up on the valve body 1 corresponding to the solid construction position, and import 11 and first hole 13 intercommunication, export 12 and third hole 15 intercommunication, disk seat 2 wears to establish in second hole 14, the function switching subassembly includes first switching structure and second switching structure, first switching structure installs on the disk seat 2 that is located top hollow structure, second switching structure installs on the disk seat 2 that is located bottom hollow structure.

As shown in fig. 2 and 7, further, the valve seat 2 comprises a disk part 21, a body part 22 and a shaft part 23, the specification of the disk part 21 is larger than that of the hollow structure at the top of the valve body 1, and the valve cover 3 is connected on the disk part 21; the specification and shape of the body part 22 are equal to those of a hollow structure at the top of the valve body, and a sealing structure is arranged between the body part 22 and the side wall of the inner cavity of the valve body 1, wherein the sealing structure is a sealing ring which is used for preventing gas and liquid from leaking between the valve body 1 and the body part 22; the specification and shape of the shaft part 23 are equal to those of the second hole 14, and the tail end of the shaft part 23 extends to the lower end of the hollow structure at the bottom of the valve body 1; the first switching mechanism is provided on the disk portion 21 and the body portion 22, and the second switching mechanism is provided on the shaft portion 23.

The first switching structure comprises a fourth hole 16 and a fifth hole 17, wherein the fourth hole 16 is a straight through hole and is arranged on the edge parts of the disc part 21 and the body part 22; the fifth hole 17 is a through inclined hole, the top of the fifth hole is arranged between the disc part 21 and the body part 22, and the bottom of the fifth hole is arranged at the side of the body part 22. it should be noted that the inclined hole of the fifth hole 17 is a curved hole, and can be a single arc or a multi-arc structure; the second switching structure comprises a bottom plate 10, a sixth hole 18 and a seventh hole 19 which are oppositely arranged on the bottom plate 10; the sixth hole 18 and the seventh hole 19 are arranged at an angle of 180 degrees, the sixth hole 18 and the fourth hole 16 are arranged in a staggered manner, and an included angle between the sixth hole 18 and the fourth hole 16 is 45 degrees; with the above structural arrangement, only one of the fourth hole 16 and the sixth hole 18 can be made to communicate with the first hole 13 at the same time, and when one communicates, the other does not necessarily communicate.

A first fluid passage is enclosed among the first hole 13, the fourth hole 16, the top of the valve seat 2, the inner cavity of the valve cover 3, the fifth hole 17 and the third hole 15;

a second fluid passage is enclosed among the first hole 13, the sixth hole 18, the hollow structure at the bottom of the valve body 1, the seventh hole 19 and the third hole 15;

as shown in fig. 4-6, when the multifunctional steam trap is in the drainage mode, the valve seat 2 rotates to the first designated position, the fourth hole 16 and the first hole 13 are overlapped to form a coaxial structure, and the fifth hole 17 and the third hole 15 are overlapped to form a coaxial structure; the sixth hole 18 and the seventh hole 19 are staggered with respect to the first hole 13 and the third hole 15, respectively;

when the multifunctional steam trap is in a bypass mode, the valve seat 2 rotates to a second appointed position, the fourth hole 16 is staggered with the first hole 13, and the fifth hole 17 is staggered with the third hole 15; the sixth hole 18 and the seventh hole 19 are respectively superposed with the first hole 13 and the third hole 15 to form a coaxial structure;

with the multi-function steam trap in the stop mode, the valve seat 2 is rotated to a third designated position, with the fourth, fifth, sixth and seventh orifices 16, 17, 18 and 19 being offset from the first and third orifices 13 and 15, respectively.

As shown in fig. 1, an indication line 100 is provided on the valve body 1, and mark points 200 are provided on the bonnet 3 corresponding to the first designated position, the second designated position, and the third designated position, respectively. In use, when the valve seat 2 and the valve cover 3 rotate together, the mark points 200 at different positions respectively correspond to the indication lines 100 to represent that the valve seat is in different functional modes.

As shown in fig. 8, in order to improve the connection stability between the bottom plate 10 and the shaft 23 and prevent the bottom plate 10 from rotating relative to the shaft 23 and causing deviation and dislocation of a designated position after long-term use, in the present invention, a tangent plane is arranged at the position where the lower end of the shaft 23 is connected with the bottom plate 10, a fixing hole with the same shape of the cross section as that of the corresponding position of the shaft is arranged on the bottom plate, and the bottom plate is clamped on the shaft.

In the invention, the hydrophobic function module 5 is made of a corrugated heat pipe, and the heat pipe is filled with a thermosensitive medium. The heat-sensitive medium is a mixture of biphenyl ether and liquid ammonia, wherein the content of the biphenyl ether is 60% -70%, and the content of the liquid ammonia is 30% -40%. The wave number of the heat pipe is 8-11.

The valve also comprises a filter element 7, wherein the filter element 7 is arranged at the top of the valve seat 2 and sleeved on the valve core 6.

The top of the heat pipe is provided with a limiting piece 8, and the heat pipe can only extend downwards through the limiting piece 8.

The top of the limiting part 8 is abutted against the top of the inner cavity of the valve cover 3, and the bottom of the limiting part 8 is provided with a limiting clamping groove for clamping the heat pipe.

The valve cap further comprises an adjusting part 9 arranged between the valve cap 3 and the limiting part 8, a fixing groove is formed in the top of an inner cavity of the valve cap 3, and a bolt adjusting hole is formed in the top of the limiting part 8; one end of the adjusting piece 9 is screwed on the adjusting bolt hole, the other end of the adjusting piece is clamped in the fixing groove, and the depth of the adjusting piece 9 extending into the limiting piece 8 is adjustable.

The valve core 6 comprises an end part and a stainless steel valve clack, the end part is connected with the drainage function module, the stainless steel valve clack can be in contact connection with the second hole 14, an arc-shaped part is arranged at the tail end of the stainless steel valve clack, and a concave part matched with the arc-shaped part is arranged at the top of the second hole 14. Specifically, the arc-shaped part is of a semicircular structure.

The heat pipe type temperature-change multifunctional steam trap provided by the invention can be manually switched into a plurality of functional modes, has the functions of stopping, draining and conducting, can select different functional modes according to actual needs, and when the trap is in the STOP (STOP) mode: the inlet, the outlet and the bypass part are closed, and fluid cannot flow into the drainage unit in the valve cover or flow out of the bypass part, so that the filter can be cleaned and the heat pipe can be overhauled; when in BY-PASS mode: the fluid directly flows to the outlet through a bypass part of a hollow structure at the bottom of the valve body, and the position is selected when the pipeline is installed for sewage discharge or when a large amount of condensed water is discharged at the beginning of operation; when in TRAP (hydrophobic) mode: when the steam trap is in the position, the steam trap performs a normal draining action, and condensed water flows from the inlet to the outlet through the steam trap and does not flow out of the bypass part; through the structural design, the product has wider application range and stronger adaptability; a temperature control type steam-water separation mode is adopted, a heat pipe technology is utilized, a heat sensitive medium is filled, the subtle difference between the water temperature and the steam temperature can be sensed, and when steam is met, a valve hole is closed, so that the steam leakage is prevented; when water is met (even if the steam contains a trace amount of water), the drainage gap is automatically regulated and controlled to drain the water, and when the amount of condensed water in the pipeline is increased, the drainage gap is automatically increased to drain the condensed water in time; the steam-water separation performance is good, the steam-water separation device is used on a low-pressure steam pipe network and small and medium-sized heat exchange equipment, zero steam leakage is achieved, the heat exchange efficiency is improved, the back pressure degree is high (up to 80 percent), the steam-water separation device can be used for a condensate water recovery system, the energy waste is solved, and the thermal pollution of the atmospheric environment is reduced; when the thermosensitive element as the hydrophobic functional module moves axially, the defect of metal fatigue of the traditional steam trap is overcome, the sensitivity of the switch valve is extremely high, the thermosensitive element is made of 304 stainless steel and high-temperature heat treatment process, the corrosion resistance is good, and the defects of easy damage and short service life of the steam trap are overcome.

It should be noted that "inward" is a direction toward the center of the accommodating space, and "outward" is a direction away from the center of the accommodating space.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in fig. 1 to facilitate the description of the invention and to simplify the description, but are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.