KR102654413B1 - Portable flow control release valve - Google Patents

Abstract

The portable flow control release valve includes a curved connecting pipe taken out from the heat exchanger shell, the outlet of the curved connecting pipe is facing downward and a straight connecting pipe is connected, a locking thread sleeve is fitted on the outside of the straight connecting pipe, and the straight connecting pipe is fitted with a locking thread sleeve. A release valve assembly is connected below the pipe and locking threaded sleeve; The release valve assembly includes a valve body, a valve rotating core mounted within the valve body, and a handle that drives the valve rotating core to rotate, wherein the handle drives the valve rotating core to switch into the closed state, liquid discharge state, and gas discharge state. You can. In the present invention, a transitional straight connecting pipe and a locking thread sleeve are connected to a release valve assembly, so the structure is simple, installation and replacement are convenient, and the position can be adjusted in the circumferential direction. The release valve assembly is equipped with a valve rotation core, and the flow rate of the valve rotation core can be adjusted by simply rotating the handle. It can be adjusted to a closed state, a liquid discharge state with a large flow rate, and a gas discharge state with a small flow rate, so as to seal, liquid It meets the different needs of discharge and gas discharge respectively, and the liquid discharge efficiency is higher and the gas discharge is more stable.

Description

Portable flow control release valve

The present invention relates to the field of heat exchanger release valve structures, and more specifically to portable flow control release valves.

The release valve is an essential device in the heat exchanger, and its main purpose is to release gas and liquid. The existing release valve structure is too complicated and inconvenient. To discharge the liquid, you have to take a tool and remove the valve cover and valve core to discharge the liquid. It is not easy to control the flow direction of the liquid, and the liquid is sprayed everywhere. It causes unnecessary problems for workers; Because the structure is so complex, manufacturing costs are also high. In addition, because the existing release valve uses the same distribution path to discharge gas and liquid, the release valve has problems in that the gas discharge speed is too fast and unstable, and the liquid discharge speed is too slow. Therefore, it is very important to design a release valve that has a simple structure, is convenient to control, and has different discharge paths for gas and liquid.

In response to the shortcomings of the prior art, the present invention provides a portable flow control release valve, wherein the portable flow control release valve of the present invention has a transitional straight connection pipe and a locking thread sleeve connected to the release valve assembly, and has a structure. It is simple and convenient to install and replace, and the position can be adjusted in the circumferential direction. The release valve assembly is equipped with a valve rotation core, and the flow rate of the valve rotation core can be adjusted by simply rotating the handle. It can be adjusted to a closed state, a liquid discharge state with a large flow rate, and a gas discharge state with a small flow rate, so as to seal, liquid It meets the different needs of discharge and gas discharge respectively, and the liquid discharge efficiency is higher and the gas discharge is more stable. In addition, the structure of the release valve core and return spring mounted within the valve rotation core enables self-adaptive adjustment and ensures the stability of liquid discharge by offsetting part of the liquid pressure to prevent the liquid injection pressure and speed from becoming too large. You can.

The specific means for solving the problem of the present invention are as follows.

The portable flow control release valve includes a curved connection pipe drawn out from the heat exchanger shell, the outlet of the curved connection pipe faces downward and a straight connection pipe is connected to it, and a locking thread sleeve is installed on the outside of the straight connection pipe, A release valve assembly is connected below the straight connection pipe and the locking thread sleeve; The release valve assembly includes a valve body, a valve rotation core mounted within the valve body, and a handle for driving the valve rotation core to rotate, wherein the handle is configured to operate the valve rotation core in a closed state, a liquid discharge state, and a gas discharge state. It can be driven to convert to .

Accordingly, the heat exchanger switches the valve rotation core to a liquid discharge state and a gas discharge state, respectively, when discharging liquid and gas, thereby making liquid discharge and gas discharge of the release valve more stable.

Preferably in the present invention, the upper end of the straight connecting pipe and the curved connecting pipe are connected through threads, the lower end of the straight connecting pipe has a blocking edge extending outward, and the locking thread sleeve is located at the rear of the straight connecting pipe. A cover is installed at the bottom and the limit is blocked by the blocking edge.

Accordingly, the space between the threads between the straight connection pipe and the curved connection pipe is sealed with Teflon tape, making connection simple and convenient.

Preferably in the present invention, a male thread is installed in the lower part of the locking thread sleeve, the valve body inlet and the locking thread sleeve are connected through a thread, and the blocking edge at the bottom of the straight connection pipe and the valve body are connected. Sealed through a gasket.

Thereby, the gasket is mounted inside the valve body inlet, and is tightened with the thread between the locking thread sleeve through the valve body, so that the gasket is pressed between the blocking edge and the valve body sealing surface to create a seal. In addition, by loosening the locking thread sleeve, the angle position of the handle can be adjusted, making the operation easier.

Preferably in the present invention, the valve core includes a spherical sealing body blended with the inside of the valve body and a connecting rod extending outward from a side of the spherical sealing body to the outside of the valve body, and an outer end of the connecting rod is Connected to the handle.

Thereby, by rotating the handle, the spherical sealing body can be rotated to realize switching of the closed state, liquid discharge state and gas discharge state.

Preferably in the present invention, the spherical sealing body is provided with a distribution hole whose extension direction is perpendicular to the extension direction of the connecting rod, and a release valve core is mounted in the distribution hole, and one end of the release valve core has a hollow inner through hole. It is a cylindrical body with a “U”-shaped cross section, and the outer circle of the release valve core is aligned with the distribution hole spacing.

Accordingly, the extension direction of the distribution hole can be adjusted by rotating the spherical sealing body, and when both ends of the distribution hole are adjusted to come into contact with the spherical inner wall of the valve body, a seal is formed between the spherical sealing body and the valve body. When both ends of the distribution hole are adjusted so that the upper and lower channels of the valve body face each other, the liquid or gas in the heat exchanger is discharged from the distribution hole location; By installing the release valve core, different discharge distribution amounts can be achieved during rotational communication in both directions in the distribution hole, thereby better satisfying liquid discharge and gas discharge.

Preferably in the present invention, a sealing chamfer is installed between the end surface of the release valve core and the cylindrical surface, the distribution hole is provided with a sealing edge at one end of the sealing chamfer, and the sealing chamfer and the sealing edge are They are sealed by contacting each other; The distribution hole is provided with a distribution groove at one end of the sealing edge, and the diameter under the groove of the distribution groove is larger than the outer diameter of the release valve core; A side hole is installed at a relative position between the release valve core outer circle and the distribution groove, and the side hole communicates the inner hole and the distribution groove.

Thereby, a contact is made between the sealing chamfer and the sealing edge to realize sealing; When the distribution hole rotates so that one end of the sealing edge points upward, the release valve core moves downward, the space between the release valve core and the distribution hole is no longer sealed, and fluid flows from the distribution groove position. It flows into the inner hole through the side hole to realize discharge, has a large distribution volume, and is suitable for discharging liquid. When the distribution hole rotates so that one end of the sealing edge faces downward, a seal is formed between the release valve core and the distribution hole to block discharge.

Preferably in the present invention, the distribution hole has a circlip groove installed at one end of the inner through hole, a limit circlip is mounted in the circlip groove, and the release valve core moves to a position in contact with the limit circlip. In this case, at least half of the side apertures are located within the axial width range of the distribution groove.

Thereby, the release valve core moves axially to enable two-way switching between sealing and distribution.

In the present invention, preferably, a relief hole is installed in the closed end surface of the release valve core, and the relief hole communicates with the inner through hole.

Accordingly, when the distribution hole rotates and one end of the sealing edge points downward, a seal is formed between the release valve core and the distribution hole, and most of the fluid is discharged only through the relief hole, so that the distribution amount is small and gas discharge is reduced. More suitable.

Preferably in the present invention, a filter screen is mounted inside the limit circlip, a return spring is mounted within the inner hole, and an outer end of the return spring is blocked by the filter screen.

Accordingly, through mounting the filter screen and the return spring, the release valve core can be adjusted according to the size of the pressure when opening the liquid discharge, and as the pressure increases, it moves by overcoming the elastic force of the return spring. The distance is larger, the valve opening is larger, and self-adaptive regulation is realized, and the elastic force of the return spring can also offset part of the liquid pressure, preventing high liquid injection pressure and excessive speed, thereby ensuring the stability of liquid discharge. .

Preferably in the present invention, the relief hole diameter is 0.5 mm to 3 mm.

Accordingly, installing the relief hole diameter at 0.5mm to 3mm is more suitable for gas discharge, the release valve core can be replaced by separating the limit circlip, making it simple and convenient, and the size of the relief hole can be adjusted according to exhaust needs. You can replace the release valve core with another.

In summary, the present invention has the following beneficial effects.

The portable flow control release valve of the present invention has a transitional straight connection pipe and a locking thread sleeve connected to the release valve assembly, so the structure is simple, installation and replacement are convenient, and the position can be adjusted in the circumferential direction. The release valve assembly is equipped with a valve rotation core, and the flow rate of the valve rotation core can be adjusted by simply rotating the handle. It can be adjusted to a closed state, a liquid discharge state with a large flow rate, and a gas discharge state with a small flow rate, so as to seal, liquid It meets the different needs of discharge and gas discharge respectively, and the liquid discharge efficiency is higher and the gas discharge is more stable. In addition, the structure of the release valve core and return spring mounted within the valve rotation core enables self-adaptive adjustment and prevents the liquid injection pressure and speed from becoming too large by offsetting some of the liquid pressure, thereby ensuring the stability of liquid discharge.

Figure 1 is a cross-sectional view of the portable flow control release valve of the present invention in a sealed state.
Figure 2 is a cross-sectional view of the valve rotating core of Example 1 of the portable flow control release valve of the present invention in a gas discharge state.
Figure 3 is a cross-sectional view of the valve rotating core of Example 1 of the portable flow control release valve of the present invention in a liquid discharge state.
Figure 4 is a cross-sectional view of the valve rotating core of Example 2 of the portable flow control release valve of the present invention in a gas discharge state.
Figure 5 is a cross-sectional view of the valve rotating core of Example 2 of the portable flow control release valve of the present invention in a liquid discharge state.

The present invention will be described in detail through specific examples with reference to the drawings below.

1, 2, 3, 4, and 5, the portable flow control release valve includes a curved connection pipe (1) drawn out from the heat exchanger shell, and the outlet of the curved connection pipe (1) is below. A straight connecting pipe (2) is connected facing, a locking thread sleeve (3) is mounted on the outside of the straight connecting pipe (2), and a release valve assembly ( 4) is connected; The release valve assembly 4 includes a valve body 41, a valve rotation core 42 mounted within the valve body 41, and a handle 43 that drives the valve rotation core 42 to rotate, and the handle 43 ) can drive the valve rotating core 42 to switch to the closed state, liquid discharge state, and gas discharge state.

Accordingly, the heat exchanger switches the valve rotation core 42 to the liquid discharge state and gas discharge state, respectively, when discharging liquid and gas, thereby making liquid discharge and gas discharge of the release valve more stable.

As shown in Figure 1, the upper end of the straight connecting pipe (2) and the curved connecting pipe (1) are connected through a thread, and the lower end of the straight connecting pipe (2) has a blocking edge (21) extending outward. , the locking thread sleeve (3) is mounted on the lower rear side of the straight connecting pipe (2) and is limited by the blocking edge (21).

Accordingly, the space between the threads between the straight connection pipe (2) and the curved connection pipe (1) is sealed with Teflon tape, making connection simple and convenient.

As shown in Figure 1, a male thread is installed at the bottom of the locking thread sleeve (3), the inlet of the valve body (41) and the locking thread sleeve (3) are connected through the thread, and the bottom of the straight connecting pipe (2) The space between the blocking edge 21 and the valve body 41 is sealed through a gasket 5.

Thereby, the gasket (5) is mounted inside the inlet of the valve body (41) and is tightened with the thread between the locking threaded sleeve (3) through the valve body (41), so that the gasket (5) is connected to the blocking edge (21) and Sealing is achieved by receiving pressure between the sealing surfaces of the valve body (41). In addition, by loosening the locking thread sleeve (3), the angular position of the handle (43) can be adjusted, making operation easier.

As shown in FIG. 1, the valve core 42 has a spherical sealing body 421 blended with the inside of the valve body 41 and a spherical sealing body 421 extending outward from the side to the outside of the valve body 41. It includes a connecting rod 422, and the outer end of the connecting rod 422 is connected to the handle 43,

Thereby, by rotating the handle 43, the spherical sealing body 421 can be rotated to realize switching between the closed state, liquid discharge state, and gas discharge state.

As shown in FIGS. 1, 2, 3, 4, and 5, a distribution hole 423 whose extending direction is perpendicular to the extending direction of the connecting rod 422 is installed in the spherical sealing body 421, and the distribution hole 423 is provided in the spherical sealing body 421. A release valve core 424 is mounted within the hole 423, and one end of the release valve core 424 is a hollow inner hole 4241, is a cylindrical body with a “U” shaped cross section, and is outside the release valve core 424. The circle is combined with the distribution hole (423) spacing.

As a result, the extension direction of the distribution hole 423 can be adjusted by rotating the spherical sealing body 421, and when both ends of the distribution hole 423 are adjusted to come into contact with the spherical inner wall of the valve body 41, the spherical sealing body ( A seal is formed between the distribution hole 423 and the valve body 41, and when the upper and lower channels of the valve body 41 are opposed by adjusting both ends of the distribution hole 423, the liquid or gas in the heat exchanger flows from the distribution hole 423. discharged; By equipping the release valve core 424, different discharge distribution amounts can be achieved during rotational communication in both directions in the distribution hole 423, thereby better meeting liquid discharge and gas discharge.

Example 1:

As shown in FIGS. 1, 2, and 3, a sealing chamfer 4242 is installed between the closed end end of the release valve core 424 and the cylindrical surface, and the distribution hole 423 has a sealing chamfer 4242. ) A sealing edge 4231 is installed at one end, and the sealing chamfer 4242 and the sealing edge 4231 come into contact with each other and are sealed; The distribution hole 423 is provided with a distribution groove 4232 at one end of the sealing edge 4231, and the bottom diameter of the distribution groove 4232 is larger than the outer diameter of the release valve core 424; A side hole 4243 is installed in the relative position of the outer circle of the release valve core 424 and the distribution groove 4232, and the side hole 4243 communicates with the inner through hole 4241 and the distribution groove 4232.

Thereby, the sealing chamfer 4242 and the sealing edge 4231 can be brought into contact to realize sealing; When the distribution hole 423 rotates and one end of the sealing edge 4231 faces upward, the release valve core 424 moves downward, and there is no longer a seal between the release valve core 424 and the distribution hole 423. No, the fluid flows into the inner through hole 4241 from the location of the distribution groove 4232 through the side hole 4243 to realize discharge, and the distribution volume is large and is suitable for liquid discharge. When the distribution hole 423 rotates so that one end of the sealing edge 4231 faces downward, a seal is formed between the release valve core 424 and the distribution hole 423, thereby blocking discharge.

As shown in FIGS. 1, 2, and 3, the distribution hole 423 has a circlip groove installed at one end of the inner through hole 4241, a limit circlip 6 is mounted within the circlip groove, and the release When the valve core 424 moves to a position in contact with the limit circlip 6, at least half of the side hole 4243 is located within the axial width range of the distribution groove 4232.

This allows the release valve core 424 to move axially to switch between sealing and flow.

As shown in FIGS. 1, 2, and 3, a relief hole 4244 is provided in the closed cross section of the release valve core 424, and the relief hole 4244 communicates with the inner through hole 4241.

Accordingly, when the distribution hole 423 rotates and one end of the sealing edge 4231 faces downward, a seal is formed between the release valve core 424 and the distribution hole 423, and most of the fluid flows into the relief hole 4244. Since it is discharged only through the gas, the distribution volume is small and it is more suitable for gas discharge.

Example 2:

As shown in Figures 1, 4, and 5, a filter screen (7) is mounted inside the limit circlip (6), a return spring (8) is mounted within the inner through hole (4241), and the return spring ( 8) The outer end is blocked by the filter screen (7).

Accordingly, by mounting the filter screen 7 and the return spring 8, the release valve core 424 can be adjusted according to the size of the pressure when opening the liquid discharge, and the larger the pressure, the larger the return spring 8. ) to overcome the elastic force of the return spring (8), so that the moving distance is larger, the valve opening is larger, and self-adaptive regulation is realized, and the elastic force of the return spring (8) can also offset part of the liquid pressure, thereby reducing the high-pressure liquid injection pressure and excessive speed. By preventing this, the stability of liquid discharge can be guaranteed.

As shown in FIGS. 2, 3, 4, and 5, the diameter of the relief hole 4244 is 0.5 mm to 3 mm.

As a result, installing the relief hole (4244) with a diameter of 0.5 mm to 3 mm is more suitable for gas discharge, and the release valve core (424) can be replaced by separating the limit circlip (6), making it simple and convenient, and eliminating the need for exhaust. Accordingly, the release valve core 424 with a different size of the relief hole 4244 can be replaced.

The heat exchanger switches the valve rotating core into the liquid discharge state and gas discharge state respectively during liquid discharge and gas discharge, so that the liquid discharge and gas discharge of the release valve are more stable.

1: curved connection pipe,
2: Straight connection pipe,
21: blocking edge,
3: Locking threaded sleeve,
4: Release valve assembly,
41: valve body,
42: valve rotation core,
421: Spherical seal body,
422: connecting rod,
423: Distribution hall,
4231: sealing edge,
4232: Distribution Home,
424: release valve core,
4241: medial foramen;
4242: Seal chamfer,
4243: Lateral hole,
4244: Relief Hall;
43: handle,
5: gasket,
6: limit circlip,
7: filter screen,
8: Return spring.

Claims (10)

In the portable flow control release valve,
It includes a curved connecting pipe (1) drawn out from the heat exchanger shell, the outlet of the curved connecting pipe (1) is directed downward and a straight connecting pipe (2) is connected to it, and a locking thread is provided on the outside of the straight connecting pipe (2). A sleeve (3) is covered and mounted, and a release valve assembly (4) is connected below the straight connection pipe (2) and the locking threaded sleeve (3); The release valve assembly (4) includes a valve body (41), a valve rotation core (42) mounted within the valve body (41), and a handle (43) that drives the valve rotation core (42) to rotate, The handle 43 can drive the valve rotation core 42 to switch into a closed state, a liquid discharge state, and a gas discharge state,
The valve rotation core 42 includes a spherical sealing body 421 blended with the inside of the valve body 41 and a connecting rod extending outward from the side of the spherical sealing body 421 to the outside of the valve body 41 ( 422), and an outer end of the connecting rod 422 is connected to the handle 43,
A distribution hole 423 whose extending direction is perpendicular to the extending direction of the connecting rod 422 is installed in the spherical sealing body 421, and a release valve core 424 is installed in the distribution hole 423, One end of the release valve core 424 is a hollow inner hole 4241 and is a cylindrical body with a “U” shaped cross-section, and the outer circle of the release valve core 424 is characterized in that it is combined with the interval of the distribution hole 423. Portable flow control release valve.
According to paragraph 1,
The upper end of the straight connecting pipe (2) and the curved connecting pipe (1) are connected through a thread, and the lower end of the straight connecting pipe (2) is provided with an outwardly extending blocking edge (21), and the locking thread sleeve (3) is a portable flow control release valve, characterized in that it is mounted on the lower rear side of the straight connection pipe (2) and is limitedly blocked by the blocking edge (21).
According to paragraph 2,
A male thread is installed at the bottom of the locking thread sleeve (3), the inlet of the valve body 41 and the locking thread sleeve (3) are connected through a thread, and the blocking edge at the bottom of the straight connecting pipe (2) A portable flow control release valve, characterized in that the space between (21) and the valve body (41) is sealed through a gasket (5).
delete delete According to paragraph 1,
A sealing chamfer 4242 is installed between the closed end end of the release valve core 424 and the cylindrical surface, and the distribution hole 423 has a sealing edge 4231 installed at one end of the sealing chamfer 4242. , the sealing chamfer 4242 and the sealing edge 4231 come into contact with each other and are sealed; The distribution hole 423 is provided with a distribution groove 4232 at one end of the sealing edge 4231, and the bottom diameter of the distribution groove 4232 is larger than the outer diameter of the release valve core 424; A side hole 4243 is installed in the relative position of the outer circle of the release valve core 424 and the distribution groove 4232, and the side hole 4243 connects the inner hole 4241 and the distribution groove 4232. A portable flow control release valve characterized in that it communicates.
According to clause 6,
The distribution hole 423 has a circlip groove installed at one end of the inner through hole 4241, a limit circlip 6 is installed in the circlip groove, and the release valve core 424 is connected to the limit circlip. A portable flow control release valve, characterized in that when moving to a position in contact with (6), at least half of the side hole (4243) is located within the axial width range of the distribution groove (4232).
According to clause 6,
A portable flow control release valve, characterized in that a relief hole 4244 is installed in the closed end surface of the release valve core 424, and the relief hole 4244 communicates with the inner through hole 4241.
In clause 7,
A filter screen (7) is mounted inside the limit circlip (6), and a return spring (8) is mounted within the inner hole (4241), and an outer end of the return spring (8) is connected to the filter screen (7). A portable flow control release valve, characterized in that it is blocked by.
According to clause 8,
A portable flow control release valve, characterized in that the diameter of the relief hole (4244) is 0.5 mm to 3 mm.