KR20220113917A - Portable Flow Control Release Valve - Google Patents

Abstract

The portable flow control release valve comprises a curved connecting pipe drawn from a heat exchanger shell, the outlet of the curved connecting pipe is facing down and a straight connecting pipe is connected, and a locking thread sleeve is fitted outside the straight connecting pipe, the straight connecting A release valve assembly is connected below the pipe and lock thread sleeve; The release valve assembly includes a valve body, a valve rotating core mounted within the valve body, and a knob for driving the valve rotating core to rotate, the knob being configured to drive the valve rotating core to switch to a closed state, a liquid discharge state, and a gas discharge state. can According to the present invention, the transient straight connecting pipe and locking thread sleeve are connected with the release valve assembly, so that the structure is simple, the installation and replacement are convenient, and the position can be adjusted in the circumferential direction. The release valve assembly is equipped with a valve rotating core, simply by rotating the knob, the flow rate of the valve rotating core can be adjusted, and the closed state, high flow liquid discharge state and low flow rate gas discharge state can be adjusted to seal, liquid It meets the different needs of discharge and gas discharge, respectively, 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 construction, and more particularly to a portable flow control release valve.

A release valve is an indispensable device in a heat exchanger, the main purpose of which is to release gases and liquids. Existing release valve structure is too complicated and inconvenient. To discharge the liquid, you must bring 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 in all directions. cause unnecessary problems for workers; Because the structure is too complex, the manufacturing cost is high. In addition, since the conventional release valve uses the same distribution path for discharging gas and liquid, the release valve has problems in that the discharging rate of gas is too fast and unstable, and the discharging rate of liquid is too slow. Therefore, it is very important to design a release valve with a simple structure, convenient control, and different discharge paths for gas and liquid.

For 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 straight connecting pipe for transition and a locking threaded sleeve connected with the release valve assembly, the structure It is simple, easy to install and replace, and the position can be adjusted in the circumferential direction. The release valve assembly is equipped with a valve rotating core, simply by rotating the knob, the flow rate of the valve rotating core can be adjusted, and the closed state, high flow liquid discharge state and low flow rate gas discharge state can be adjusted to seal, liquid It meets the different needs of discharge and gas discharge, respectively, 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 in the valve rotation core can be self-adaptingly adjustable, and it can compensate a part of the liquid pressure to prevent the liquid ejection pressure and speed from becoming too large, thereby ensuring the stability of liquid discharge. can

Specific problem solving means of the present invention are as follows.

The portable flow control release valve comprises a curved connecting pipe drawn from a heat exchanger shell, the outlet of the curved connecting pipe faces downwards and a straight connecting pipe is connected, and a locking threaded sleeve is fitted on the outside of the straight connecting pipe, a release valve assembly is connected below the straight connecting pipe and the locking threaded sleeve; The release valve assembly includes a valve body, a valve rotational core mounted in the valve body, and a handle for driving the valve rotational core to rotate, wherein the handle includes a valve rotational core in a closed state, a liquid discharge state and a gas discharge state. can be driven to switch to

Thereby, the heat exchanger switches the valve rotating core into a liquid discharge state and a gas discharge state, respectively, at the time of liquid discharge and gas discharge, so that the liquid discharge and gas discharge of the release valve are more stable.

Preferably, in the present invention, the upper end of the straight connecting pipe and the curved connecting pipe are connected through a thread, and the lower end of the straight connecting pipe has an outwardly extending blocking edge, and the locking threaded sleeve is at the rear side of the straight connecting pipe. It is mounted on the bottom and the limit is blocked by the blocking edge.

Thereby, the thread between the straight connecting pipe and the curved connecting pipe is sealed through the Teflon tape, so that the connection is simple and convenient.

Preferably, in the present invention, a male thread is installed on the lower portion of the locking threaded sleeve, the valve body inlet and the locking threaded sleeve are connected through a thread, and the blocking edge of the lower end of the straight connection pipe and the valve body is sealed through a gasket.

Thereby, the gasket is mounted inside the valve body inlet and tightened with the thread between the locking threaded sleeve through the valve body, whereby the gasket is pressed between the shut-off edge and the valve body sealing surface to achieve a seal. realizing, in addition, loosening the locking thread sleeve can adjust the angular position of the handle, which is easier to operate.

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

Thereby, by rotating the handle, the spherical sealing body can be rotated to realize switching between the closed state, the liquid discharge state and the 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. , and is a cylindrical body having a “U” shape in cross section, and the outer circle of the release valve core is blended with the distribution hole spacing.

Thereby, by rotating the spherical sealing body, the extension direction of the distribution hole can be adjusted, and when both ends of the distribution hole are adjusted to contact the spherical inner wall of the valve body, a seal is formed between the spherical sealing body and the valve body. and when the upper and lower channels of the valve body face each other by adjusting both ends of the distribution hole, the liquid or gas in the heat exchanger is discharged from the distribution hole position; By mounting the release valve core, it is possible to achieve different discharge flow rates during rotation communication in both directions in the flow hole, so that liquid discharge and gas discharge can be better met.

Preferably, in the present invention, a sealing chamfer is installed between the end face of the release valve core closed at one end 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 sealed against each other; the distribution hole is provided with a distribution groove at one end of the sealing edge, and a diameter under the groove of the distribution groove is greater than an outer diameter of the release valve core; A side through hole is installed at a relative position between the outer circle of the release valve core and the distribution groove, and the side through hole communicates the inner through hole with the distribution groove.

Thereby, between the sealing chamfer and the sealing edge can be abutted to realize sealing; When the circulation hole rotates and one end of the sealing edge faces upward, the release valve core moves downward, and the space between the release valve core and the circulation hole is no longer sealed, and the fluid flows from the distribution groove position. It flows into the inner through hole through the side through hole to realize discharge, the flow rate is large, and it is suitable for liquid discharge. When the distribution hole rotates and one end of the sealing edge faces downward, a seal is formed between the release valve core and the distribution hole to block discharge.

In the present invention, preferably, the circulation hole is provided with a circlip groove 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 through hole is located within the axial width range of the distribution groove.

Thereby, the release valve core moves in the axial direction to allow bidirectional switching between sealing and distribution.

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

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

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

Thus, through the mounting of the filter screen and the return spring, the release valve core can be adjusted according to the pressure level when opening the liquid discharge, and the greater the pressure, the more the return spring overcomes the elastic force to move. The distance is larger and the valve opening is larger, realizing self-adaptive adjustment, and the elastic force of the return spring can also cancel a part of the liquid pressure to prevent the high-pressure liquid injection pressure and excessive speed, thereby ensuring the stability of liquid discharge. .

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

Accordingly, when the relief hole diameter is set to 0.5mm to 3mm, it is more suitable for gas discharge, and the release valve core can be replaced by separating the limit circlip, so it is simple and convenient, and the size of the relief hole according to the exhaust need may replace the other release valve core.

Taken together, the present invention has the following advantageous effects.

The portable flow control release valve of the present invention has a straight connection pipe for transient and a locking thread sleeve connected with the release valve assembly, so that 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 rotating core, simply by rotating the knob, the flow rate of the valve rotating core can be adjusted, and the closed state, high flow liquid discharge state and low flow rate gas discharge state can be adjusted to seal, liquid It meets the different needs of discharge and gas discharge, respectively, 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 in the valve rotation core allows self-adaptive adjustment, and by offsetting some liquid pressure to prevent the liquid ejection pressure and speed from becoming too large, the stability of liquid discharge is ensured.

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

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 comprises a curved connecting pipe 1 drawn from the heat exchanger shell, the outlet of the curved connecting pipe 1 being below The straight connecting pipe (2) is connected to the 4) is connected; The release valve assembly 4 includes a valve body 41 , a valve rotating core 42 mounted in the valve body 41 , and a knob 43 driving the valve rotating core 42 to rotate, the knob 43 ) may drive the valve rotation core 42 to switch to a closed state, a liquid discharge state, and a gas discharge state.

Thereby, the heat exchanger switches the valve rotating core 42 into a liquid discharge state and a gas discharge state, respectively, at the time of liquid discharge and gas discharge, so that the liquid discharge and gas discharge of the release valve are more stable.

As shown in Fig. 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 lock thread sleeve 3 is fitted to the lower end of the rear side of the straight connecting pipe 2 and is limited-blocked by the blocking edge 21 .

Thereby, the thread between the straight connecting pipe 2 and the curved connecting pipe 1 is sealed through the Teflon tape, making the connection simple and convenient.

As shown in FIG. 1 , a male thread is installed in the lower portion of the locking thread sleeve 3 , and the inlet of the valve body 41 and the locking thread sleeve 3 are connected through a thread, and the lower end of the straight connection pipe 2 . Between the shut-off edge 21 of 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 secured to the blocking edge 21 and The valve body 41 is pressed between the sealing surfaces to realize the sealing, in addition to loosening the locking thread sleeve 3, the angular position of the handle 43 can be adjusted, which makes the 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 the spherical sealing body 421 extending from the side to the outside of the valve body 41 outward. It includes a connecting rod 422, 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, realizing the switching of the closed state, the liquid discharge state, and the gas discharge state.

1, 2, 3, 4, and 5, the spherical sealing body 421 has a distribution hole 423 whose extension direction is perpendicular to the connecting rod 422 extension direction is installed, and distribution A release valve core 424 is mounted in the hole 423, one end of the release valve core 424 is a hollow inner through hole 4241, a cylindrical body having a “U” cross section, and the release valve core 424 is outside The circle is combined with the distribution hole 423 spacing.

Thereby, by rotating the spherical sealing body 421, the extending direction of the distribution hole 423 can be adjusted, and when in contact with the spherical inner wall of the valve body 41 by adjusting both ends of the distribution hole 423, the spherical sealing body ( A seal is formed between 421 ) and the valve body 41 , and when both ends of the distribution hole 423 are adjusted so that the upper and lower channels of the valve body 41 face each other, the liquid or gas in the heat exchanger flows from the distribution hole 423 position. discharged; By mounting the release valve core 424, different discharge flow rates can be achieved during rotational communication in both directions in the flow hole 423, so that the liquid discharge and gas discharge can be better met.

Example 1:

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

Thereby, between the sealing chamfer 4242 and the sealing edge 4231 is abutted 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 the sealing is no longer between the release valve core 424 and the distribution hole 423 . No, the fluid flows into the inner through hole 4241 through the side through hole 4243 from the position of the distribution groove 4232 to realize discharge, and the flow rate is large and suitable for liquid discharge. 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 to block discharge.

1, 2 and 3, the distribution hole 423 has a circlip groove installed at one end of the inner through hole 4241, and a limit circlip 6 is mounted in 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 through hole 4243 is located within the axial width range of the distribution groove 4232 .

Thereby, the release valve core 424 moves in the axial direction to allow bidirectional switching between sealing and distribution.

1, 2, and 3 , a relief hole 4244 is installed in the closed 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 is in the relief hole 4244. It is discharged only through the ventilator, so the circulation volume is small and it is more suitable for gas discharge.

Example 2:

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

Thereby, through the mounting of the filter screen 7 and the return spring 8 , the release valve core 424 can be adjusted according to the pressure magnitude when opening the liquid discharge, and the greater the pressure, the more the return spring 8 ), the moving distance is larger, the valve opening is larger, and the self-adaptive adjustment is realized, and the elastic force of the return spring 8 can also cancel a part of the liquid pressure, so that the high-pressure liquid injection pressure and excessive speed to ensure the stability of liquid discharge.

2, 3, 4, and 5, the relief hole 4244 has a diameter of 0.5 mm to 3 mm.

Accordingly, if the relief hole 4244 diameter is installed to 0.5mm to 3mm, it is more suitable for gas discharge, and the release valve core 424 can be replaced by separating the limit circlip 6, which is simple and convenient, and requires exhaust. Accordingly, the release valve core 424 having a different size of the relief hole 4244 may be replaced.

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

1: curved connecting pipe,
2: straight connecting pipe;
21: blocking edge,
3: lock thread sleeve;
4: release valve assembly;
41: valve body;
42: valve rotation core,
421: spherical sealing body;
422: connecting rod;
423: distribution hall,
4231: sealing edge,
4232: distribution home,
424: release valve core,
4241: inner aperture;
4242: sealing chamfer,
4243: side aperture,
4244: relief hole,
43: handle,
5: gasket,
6: limit circlip,
7: filter screen,
8: return spring.

Claims (10)

A portable flow control release valve comprising:
a curved connecting pipe (1) drawn from the heat exchanger shell, the outlet of which is directed downwards, to which a straight connecting pipe (2) is connected, and a locking thread outside the straight connecting pipe (2) a sleeve (3) is fitted, and a release valve assembly (4) is connected below the straight connecting pipe (2) and the locking threaded sleeve (3); The release valve assembly (4) includes a valve body (41), a valve rotating core (42) mounted in the valve body (41), and a knob (43) driving the valve rotating core (42) to rotate, The handle (43) is capable of driving the valve rotating core (42) to switch to a closed state, a liquid discharge state and a gas discharge state.
According to claim 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 an outwardly extending blocking edge (21), the locking threaded sleeve (3) is a portable flow control release valve, characterized in that it is mounted on the lower end of the rear side of the straight connection pipe (2) and is limit-blocked by the blocking edge (21).
3. The method of claim 2,
A male thread is installed on the lower portion of the locking thread sleeve 3 , and the inlet of the valve body 41 and the lock thread sleeve 3 are connected through a thread, and the blocking edge of the lower end of the straight connecting pipe 2 . A portable flow control release valve, characterized in that between (21) and the valve body (41) is sealed through a gasket (5).
According to claim 1,
The valve core 42 includes a spherical sealing body 421 blended with the inside of the valve body 41 and a connecting rod 422 extending from the side of the spherical sealing body 421 to the outside of the valve body 41 outward. ), and the outer end of the connecting rod (422) is a portable flow control release valve, characterized in that it is connected to the handle (43).
5. The method of claim 4,
A distribution hole 423 having an extension direction perpendicular to the extension direction of the connecting rod 422 is installed in the spherical sealing body 421 , and a release valve core 424 is mounted in the distribution hole 423 , One end of the release valve core 424 is a hollow inner through hole 4241, a cylindrical body having a “U” cross section, and the release valve core 424 outer circle is combined with the distribution hole 423 interval. portable flow control release valve.
6. The method of claim 5,
A sealing chamfer 4242 is installed between the cylindrical surface and the closed end face of the release valve core 424, and the distribution hole 423 is provided with a sealing edge 4231 at one end of the sealing chamfer 4242. , the sealing chamfer 4242 and the sealing edge 4231 are abutted against each other and sealed; The distribution hole 423 is provided with a distribution groove 4232 at one end of the sealing edge 4231, and the diameter under the groove of the distribution groove 4232 is larger than the outer diameter of the release valve core 424; A side through hole 4243 is installed at a relative position between the outer circle of the release valve core 424 and the distribution groove 4232, and the side through hole 4243 is the inner through hole 4241 and the distribution groove 4232. A portable flow control release valve, characterized in that it communicates.
7. The method of claim 6,
The circulation hole 423 is provided with a circlip groove at one end of the inner through hole 4241, a limit circlip 6 is mounted in the circlip groove, and the release valve core 424 is the limit circlip groove. (6) When moving to a position in contact with the portable flow control release valve, characterized in that at least half of the side through-hole (4243) is located within the axial width range of the distribution groove (4232).
7. The method of claim 6,
A relief hole (4244) is installed in the closed end face of the release valve core (424), and the relief hole (4244) communicates with the inner through hole (4241).
8. The method of claim 7,
A filter screen 7 is mounted inside the limit circlip 6, a return spring 8 is mounted in the inner through hole 4241, and the outer end of the return spring 8 is the filter screen 7 A portable flow control release valve, characterized in that it is shut off by
9. The method of claim 8,
The relief hole (4244) diameter is a portable flow control release valve, characterized in that 0.5mm ~ 3mm.

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