CN113551145B

CN113551145B - Ball float proportional control trap

Info

Publication number: CN113551145B
Application number: CN202110904574.1A
Authority: CN
Inventors: 金胜建; 邵贵军; 陈孙娒; 陈丐勇; 鲍汉发
Original assignee: Newton Fluid Technology Co ltd
Current assignee: Newton Fluid Technology Co ltd
Priority date: 2021-08-07
Filing date: 2021-08-07
Publication date: 2022-08-19
Anticipated expiration: 2041-08-07
Also published as: CN113551145A

Abstract

The application discloses a floating ball proportional control trap, wherein when a floating ball moves from a high position to a low position in a working cavity, the corresponding area of a gap and a first through window is gradually reduced until dislocation; according to the proportional control trap of the floating ball, the floating ball feeds the level of condensed water back to the first valve core, when the first valve core rotates, the area of a channel space formed between the notch and the first through window changes, and in the process, no collision exists between the first valve core and the first through window, so that the first valve core runs stably and is not easy to lose efficacy; along with the continuous increase of comdenstion water level, the drainage rate of floater proportional control trap is faster, and the fluctuation of floater subassembly can not be too violent, and comdenstion water level in the floater proportional control trap is stabilized at a fixed value easily, has just also realized comdenstion water exhaust proportional control.

Description

Ball float proportional control trap

Technical Field

The invention relates to the field of drain valves, in particular to a floating ball proportional control drain valve.

Background

The steam trap has the function of automatically discharging non-condensable gases such as steam condensate and air in heating equipment or a steam pipeline, and no steam leakage occurs. The steam trap has the functions of blocking steam and draining water, so that the steam heating equipment can supply heat uniformly, and latent heat of steam is fully utilized to prevent water hammer in the steam pipeline.

The floating ball type trap generally utilizes the up-and-down floating of a floating ball to control the separation and combination of a valve plate and a valve seat, thereby realizing the drainage of condensed water and the stop of water vapor. However, the continuous separation and combination of the valve plate and the valve seat have great influence on the sealing performance between the valve plate and the valve seat, and meanwhile, the separation and combination of the valve plate and the valve seat are not enough to achieve the effect of effectively removing condensed water.

Disclosure of Invention

The invention mainly aims to provide a floating ball proportion adjusting drain valve, and aims to solve the problems that the continuous separation and combination of a valve plate and a valve seat cause negative effects on the sealing performance of the valve plate and the valve seat, and the separation and combination of the valve plate and the valve seat are not enough to effectively remove condensed water.

In order to achieve the above object, the present invention provides a floating ball proportional control trap, comprising:

the valve cover is provided with a valve inlet and a valve outlet;

the valve body is internally provided with a working cavity and is detachably combined with the valve cover to form a main body part of the floating ball proportional control drain valve;

the valve seat is cylindrical, a first end and a second end are respectively arranged at two ends of the valve seat in the length direction, the first end is connected with the valve cover and communicated with the valve outlet, a valve core hole penetrates through the valve seat in the thickness direction, a baffle plate is separated from the valve seat in the length direction of the valve seat, a first through window is arranged on the baffle plate in parallel with the valve core hole, and a valve seat inlet is arranged on the valve seat;

the first valve core is columnar and is rotatably arranged in the valve core hole, a notch is formed in the outer wall of the first valve core, and the notch is matched with the first through window;

the floating ball assembly comprises a floating ball and a fixed rod, one end of the fixed rod is connected with the first valve core, and the other end of the fixed rod is connected with the floating ball;

when the floating ball moves from a high position to a low position in the working cavity, the corresponding area of the notch and the first through window is gradually reduced until dislocation.

Further, a seat cover is connected to the second end.

Furthermore, a second through window is arranged on the baffle;

the floating ball proportional control trap valve also comprises a second valve core, the second valve core comprises a valve rod and a valve plate connected to the valve rod, the valve rod penetrates through the valve seat cover, the second valve core comprises a sealing state combined with the second through window and a far state opened with the second through window, and one end, far away from the valve plate, of the valve rod is connected with the floating ball assembly;

wherein when said float is in said working chamber high position, said float assembly acts said second valve spool in a remote state; when the floating ball is at the low position of the working chamber, the floating ball component acts the second valve core in a sealing state.

Furthermore, one end, far away from the valve plate, of the valve rod is connected with the floating ball through a chain, the second valve core further comprises an elastic piece, a limiting part is arranged at the position, between the valve seat cover and the baffle, of the valve rod, and the elastic piece is in a compressed state and is arranged between the limiting part and the valve seat cover;

when the floating ball is at the high position of the working cavity, the floating ball pulls the valve rod through the chain, and the second valve core is in a far-away state; when the floating ball is at the low position of the working cavity, the chain is loosened, the valve rod drives the valve plate to be combined with the second through window under the action of the elastic element, and the second valve core is in a sealing state at the moment.

Further, the valve seat inlet is arranged at the bottom of the valve seat.

Furthermore, an inlet pipe extending downwards is connected to the inlet of the valve seat.

Further, the second through window is arranged below the first through window.

According to the proportional control trap of the floating ball, the floating ball feeds the level of condensed water back to the first valve core, when the first valve core rotates, the area of a channel space formed between the notch and the first through window changes, and in the process, no collision process exists between the first valve core and the first through window, so that the first valve core runs stably and is not easy to lose efficacy; along with the continuous increase of comdenstion water level, the drainage rate of floater proportional control trap is faster, and the fluctuation of floater subassembly can not be too violent, and comdenstion water level in the floater proportional control trap is stabilized at a fixed value easily, has just also realized comdenstion water exhaust proportional control.

Drawings

FIG. 1 is a schematic view of the combination of a valve seat and a valve cover in a float proportional control trap according to an embodiment of the present invention;

FIG. 2 is a schematic view (in cross section) of a valve seat and valve cover in a float proportional control trap in accordance with an embodiment of the present invention;

FIG. 3 is a schematic diagram of a combination of a float assembly and a first spool of a float ratio regulating trap in accordance with one embodiment of the present invention;

FIG. 4 is a cross-sectional view of a float proportional control trap in accordance with one embodiment of the present invention (float in low position);

FIG. 5 is an enlarged view of a portion of FIG. 4;

FIG. 6 is a schematic diagram of a second spool of a float proportional control trap in accordance with an embodiment of the present invention;

FIG. 7 is a cross-sectional view of a float proportional control trap in accordance with an embodiment of the present invention (the float is in the high position).

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

As used herein, the singular forms "a", "an", "the" and "the" include plural referents unless the content clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, units, modules, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Referring to fig. 1-7, in one embodiment of the present invention, a float proportional control trap includes:

a valve cover 100 provided with a valve inlet 110 and a valve outlet;

the valve body 200 is internally provided with a working cavity 210 and is detachably combined with the valve cover 100 to form the main body part of the floating ball proportional control trap;

the valve seat 300 is cylindrical, a first end and a second end are respectively arranged at two ends of the valve seat in the length direction, the first end is connected with the valve cover 100 and communicated with the valve outlet, a valve core hole 310 penetrates through the valve seat 300 in the thickness direction, a baffle 320 is separated from the valve seat 300 in the length direction inside the valve seat, a first through window 321 is arranged on the baffle 320 in parallel with the valve core hole 310, and a valve seat inlet is arranged on the valve seat 300;

the first valve core 400 is cylindrical and rotatably arranged in the valve core hole 310, a notch 410 is formed in the outer wall of the first valve core 400, and the notch 410 is matched with the first through window 321;

a float assembly including a float ball 510 and a fixing lever 520, one end of the fixing lever 520 being connected to the first valve body 400, and the other end of the fixing lever 520 being connected to the float ball 510;

when the floating ball 510 moves from the high position to the low position in the working chamber 210, the corresponding areas of the notch 410 and the first through window 321 gradually decrease until the position is dislocated.

Due to the operating characteristics of the float type trap, the entire float proportional control trap has a specific installation direction, i.e., the direction in which the float 510 is at the lower position is the lower side of the entire float proportional control trap, and the direction in which the float 510 is at the upper position is the upper side of the entire float proportional control trap. In this embodiment, the main body of the ball proportional control trap includes a valve cover 100 and a valve body 200 connected to each other by means of flanges, and a valve seat 300 connected to the valve cover 100. A filter screen is preferably provided at the valve inlet 110. The valve seat 300 is closed off by the flapper 320, and the fluid can enter the valve outlet of the valve cover 100 only after passing through the flapper 320. The baffle 320 is provided with a first through window 321, the first valve core 400 passes through the valve core hole 310 on the valve seat 300 to match with the first through window 321, the outer wall of the first valve core 400 is provided with a notch 410, and the notch 410 is matched with the first through window 321. The floating ball assembly is connected to control the rotation of the first valve spool 400 through a fixing rod 520. When the first valve spool 400 rotates, the area of the passage space formed between the notch 410 and the first through window 321 changes, and there is no collision process between the first valve spool 400 and the first through window 321 in the above process, and the first valve spool 400 operates stably and is not easy to fail. Specifically, the notch 410 extends along the length direction of the first valve core 400, and does not extend to both ends of the length direction of the first valve core 400 (in order to enable the first valve core 400 to rotate stably), the cross section of the notch 410 is semicircular, so that the cross section of the first valve core 400 at the notch 410 is also semicircular. When the floating ball assembly is fixed on the first valve core 400, when the fixed rod 520 is in a horizontal position, the notch 410 and the first through window 321 are just dislocated, so that the first valve core 400 closes the first through window 321; when the fixing rod 520 is in the downward-turning position, the first valve core 400 still seals the first through window 321; when the fixing rod 520 is at the upturned position, the notch 410 and the first through window 321 are aligned to form a channel space, and the surface contact of the channel space is increased along with the increase of the upturned degree of the fixing rod 520. Through the above-mentioned cooperation setting of first case 400 and first logical window 321, after the condensate water level exceeded a certain position in the floater proportional control trap (here is that the dead lever 520 is in the condensate water level that horizontal position corresponds), along with the continuous increase of condensate water level, the drainage rate of floater proportional control trap is faster, the fluctuation of floater subassembly can not be too violent, the condensate water level in the floater proportional control trap is stabilized at a fixed value easily, the proportional control of condensate water exhaust has just also been realized.

In one embodiment, the second end is coupled to a seat cover 330.

The valve seat cover 330 can reduce the influence of sloshing or fluctuation of the condensed water in the working chamber 210 on the condensed water in the valve seat 300, and the more stable the condensed water in the valve seat 300 is, the more stably the first valve element 400 can realize the proportional adjustment of the discharge of the condensed water. The valve seat cover 330 preferably, but not limited to, completely closes the second end.

Referring to fig. 4-7, in one embodiment, the baffle 320 is further provided with a second through window 322;

the ball-controlled proportional trap further includes a second valve element 600, the second valve element 600 includes a valve rod 610 and a valve plate 620 connected to the valve rod 610, the valve rod 610 is disposed through the valve seat cover 330, the second valve element 600 includes a sealing state combined with the second through window 322 and a remote state opened to the second through window 322, and one end of the valve rod 610 remote from the valve plate 620 is connected to the ball float assembly;

wherein the float assembly acts the second valve spool 600 away when the float ball 510 is in the high position in the working chamber 210; when the float ball 510 is in the low position in the working chamber 210, the float ball assembly acts to seal the second valve element 600.

In the working process of the float ball proportional control trap, when the float ball 510 moves from a high position to a low position in the working chamber 210, the corresponding areas of the notch 410 and the first through window 321 are gradually reduced until dislocation; the discharging speed of the condensed water from the first through window 321 is gradually reduced to zero. When the floating ball 510 moves from the low position to the high position in the working chamber 210, the speed of discharging the condensed water from the first through window 321 is gradually increased from zero. When the condensed water level is too high or too low in the above process, the negative feedback effect can be achieved by the rotation of the first valve spool 400. However, when the speed of the condensed water entering the ball proportional control trap is extremely high, the first through window 321 cannot be drained in full size, and the problem cannot be solved no matter how the first valve core 400 rotates. In this embodiment, the baffle 320 is further provided with a second through window 322, the float proportional control trap further includes a second valve core 600, the second valve core 600 is also linked with the float assembly, and the linkage relationship is as follows: when the float ball 510 is in the high position in the working chamber 210, the float ball assembly will actuate the second valve spool 600 away from the second through window 322; when the float ball 510 is in the low position in the working chamber 210, the float ball assembly will act to seal the second valve spool 600 against the second through window 322. When the level of the condensed water in the ball proportional control trap is particularly high, the second through window 322 can assist the first through window 321 to drain water, so that the condensed water in the valve seat 300 enters a stable state as soon as possible. Specifically, the shape of the second through-window 322 is preferably circular but is not limited to circular. The connection between the valve stem 610 and the float ball assembly may be a connecting rod, a chain, or a hook. Specifically, when the float 510 is in the high position, the float assembly pulls the valve stem 610 out; when the float 510 is in the low position, the float assembly does not pull the valve stem 610 outward.

Referring to fig. 4 to 7, in an embodiment, an end of the valve stem 610 away from the valve plate 620 is connected to the floating ball 510 by a chain, the second valve core 600 further includes an elastic member 630, the valve stem 610 is provided with a position limiting portion at a position between the valve seat cover 330 and the baffle 320, and the elastic member 630 is in a compressed state and is disposed between the position limiting portion and the valve seat cover 330;

when the floating ball 510 is at the high position of the working chamber 210, the floating ball 510 pulls the valve stem 610 through the chain, and the second valve spool 600 is in a remote state; when the ball float 510 is at the low position of the working chamber 210, the chain is loosened, the valve shaft 610 drives the valve plate 620 to be combined with the second through window 322 under the action of the elastic member 630, and the second valve core 600 is in a sealed state.

In this embodiment, the force of the second valve core 600 to close the second through window 322 comes from the elastic member 630. When the float ball 510 is at the high position of the working chamber 210, the float ball 510 pulls the valve rod 610 through the chain and overcoming the elastic element 630, so that when the level of the condensed water in the float ball proportional control trap is too high, the second through window 322 can play a role in assisting in draining the condensed water; when the ball 510 is in the low position of the working chamber 210, the chain is loosened, and the resilient member 630 presses the valve stem 610 toward the second window 322 to form a seal, so that no fluid flows from the second window 322 to the valve outlet.

In one embodiment, the valve seat inlet is disposed at the bottom of the valve seat 300.

Since the fluctuation of the condensed water at the upper portion in the working chamber 210 is large, the condensed water at the lower portion in the working chamber 210 is stable. In this embodiment, the valve seat 300 is in a square tube shape, and the valve seat inlet is disposed at the bottom of the valve seat 300, so that the condensed water entering the valve seat 300 needs to be introduced from the valve seat at the bottom of the valve seat 300, and the more stable the condensed water in the valve seat 300 is, the more stable the proportion of the condensed water discharged by the first valve core 400 can be adjusted.

Referring to fig. 2, in one embodiment, an inlet tube 340 extending downward is connected to the inlet of the valve seat.

The inlet pipe 340 is connected to the inlet of the valve seat, and of course, the condensed water in the valve seat 300 is more stable, and the first valve core 400 can more stably realize the proportional adjustment of the condensed water discharge. The inlet tube 340 may be connected to the inlet of the valve seat by a snap, a threaded connection, or a flange connection.

In one embodiment, the second through window 322 is disposed below the first through window 321.

The second through window 322 is provided to increase the drainage speed of the condensed water in case that the condensed water in the working chamber 210 is excessive. The second through window 322 is disposed below the first through window 321, so that the speed of discharging the condensed water from the second through window 322 is increased due to the water pressure.

In summary, in the trap for proportional control of float ball according to the present invention, the float ball 510 feeds back the level of the condensed water to the first valve core 400, when the first valve core 400 rotates, the area of the channel space formed between the notch 410 and the first through window 321 changes, and there is no collision process between the first valve core 400 and the first through window 321 in the above process, so that the first valve core 400 operates stably and is not easy to fail; along with the continuous increase of the condensate water level, the faster the drainage speed of the floating ball proportional control trap is, the up-and-down floating of the floating ball assembly cannot be too violent, the condensate water level in the floating ball proportional control trap is easy to be stabilized at a fixed value, and the condensate water drainage proportional control is realized.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A floating ball proportional control trap, comprising:

a valve cover (100) provided with a valve inlet (110) and a valve outlet;

the valve body (200) is internally provided with a working cavity (210) and is detachably combined with the valve cover (100) to form a main body part of the floating ball proportion regulating drain valve;

the valve seat (300) is cylindrical, a first end and a second end are respectively arranged at two ends of the valve seat in the length direction, the first end is connected with the valve cover (100) and communicated with the valve outlet, a valve core hole (310) penetrates through the valve seat (300) in the thickness direction, a baffle (320) is separated from the valve seat (300) in the length direction of the valve seat, a first through window (321) is arranged on the baffle (320) in parallel to the valve core hole (310), and a valve seat inlet is formed in the valve seat (300);

the first valve core (400) is columnar and rotatably arranged in the valve core hole (310), a notch (410) is formed in the outer wall of the first valve core (400), and the notch (410) is matched with the first through window (321);

the floating ball assembly comprises a floating ball (510) and a fixed rod (520), one end of the fixed rod (520) is connected with the first valve core (400), and the other end of the fixed rod (520) is connected with the floating ball (510);

when the floating ball (510) moves from a high position to a low position in the working cavity (210), the corresponding areas of the notch (410) and the first through window (321) are gradually reduced until dislocation.

2. A floating ball proportional regulating trap as claimed in claim 1 wherein said second end is attached to a seat cover (330).

3. The floating ball proportional control trap of claim 2, wherein the baffle (320) is further provided with a second through window (322);

the ball-float proportional control trap further comprises a second valve core (600), the second valve core (600) comprises a valve rod (610) and a valve plate (620) connected to the valve rod (610), the valve rod (610) is arranged through the valve seat cover (330), the second valve core (600) comprises a sealing state combined with the second through window (322) and a far state opened with the second through window (322), and one end, far away from the valve plate (620), of the valve rod (610) is connected with the ball float assembly;

wherein the float assembly acts the second valve spool (600) in a distancing condition when the float (510) is in the working chamber (210) high position; when the float ball (510) is in the low position of the working chamber (210), the float ball assembly acts on the second valve core (600) in a sealing state.

4. The floating ball proportional control trap of claim 3, wherein an end of the valve rod (610) away from the valve plate (620) is connected to the floating ball (510) by a chain, the second valve core (600) further comprises an elastic member (630), the valve rod (610) is provided with a limiting portion at a position between the valve seat cover (330) and the baffle (320), and the elastic member (630) is in a compressed state and is arranged between the limiting portion and the valve seat cover (330);

when the floating ball (510) is at the high position of the working chamber (210), the floating ball (510) pulls the valve rod (610) through the chain, and the second valve core (600) is in a far-off state; when the floating ball (510) is at the low position of the working chamber (210), the chain is loosened, the valve rod (610) drives the valve plate (620) to be combined with the second through window (322) under the action of the elastic piece (630), and the second valve core (600) is in a sealed state.

5. Floating ball proportional regulating trap according to any of claims 1-4, characterized in that said valve seat inlet is placed at the bottom of said valve seat (300).

6. The floating ball proportional regulating trap of claim 5, wherein a downwardly extending inlet pipe (340) is connected to the inlet of the valve seat.