KR0162118B1 - Constant flow rate check valve - Google Patents

Abstract

The present invention relates to a valve for discharging the fixed flow rate of the fluid flowing through the pipe irrespective of its water pressure. In the related art, the internal structure of such a valve is complicated, and the maintenance of the internal parts is maintained without the poor control performance of the constant flow rate discharge means. Uncomfortable maintenance etc. were not preferable.

The present invention is a cover portion 16a that can be coupled to the cap 18 to facilitate the maintenance of the internal parts and the like to improve the problems of the above example, and the fluid inlet is formed in the oil passage of the letter path A valve body 16, each of which has an outlet orifice 16d for allowing the fixed flow rate checker 10 to be provided, and the valve body 16 is fluidized. A strainer mesh (3) disposed between the inlet portion (16b) side and the outlet portion (16c) side to filter out the debris mixed in the fluid, and an outlet orifice (16d) formed at the lower portion of the strainer mesh (3). SUMMARY OF THE INVENTION An object of the present invention is to provide a constant flow rate check valve having a configuration of a constant flow rate check adjusting section 10 which is built on the side and performs a check action and a constant flow rate automatic control function.

Description

Constant flow check valve

1 is a sectional view of principal parts of a flow rate check valve according to the present invention.

2 is a reference exploded perspective view of the fixed flow liquid valve according to the present invention.

3 is a diagram showing another embodiment in which the temperature sensing controller is provided in FIG.

4 is a reference exploded perspective view of FIG.

5 is a third embodiment of a flow rate check valve according to the present invention.

6 is a fourth embodiment of a fixed flow check valve according to the present invention.

Figure 7 is another embodiment of the guide support provided in FIG.

* Explanation of symbols for the main parts of the drawings

1, 5: static flow check valve 10: static flow check valve

11: check and flow adjustment housing 12: check and flow rate adjustment needle

13: bracket slider 14: automatic check spring

15: airtight packing 16: valve body

17: nameplate 18: cap

20: temperature sensing adjustment mechanism 21: O-ring

22: thermal spring 23: temperature slider

24: return spring 25: temperature housing

3: strainer mesh 4: 1-way static flow check valve

60: guide support 61: reinforcing rib

The present invention relates to a constant flow automatic supply means having a check means for supplying a constant flow rate in the pipeline, such as a water supply pipe, regardless of the high and low hydraulic pressure so that no reverse flow occurs when a negative pressure inside the pipeline occurs. In particular, this ensures a simple structure of the valve body and ease of maintenance and management therein, while the water flowing in the pipe can be supplied and regulated without a backflow automatically in response to the change in water pressure. A constant flow check valve designed to be capable of

In general, the supply of water or hot water, such as ordinary houses or apartments receiving water supply, varies depending on where the user is located at a low or high location. For example, in the case of a water supply of constant water or hot water at a close distance from a source of water, the water pressure is greater than necessary, and the water at a distant location has a relatively low water pressure or a nonuniformity, so that water is relatively accurate. As a result, there was a fear that wasteful use of water would be caused to all the total customers in the use of the water supply.

In addition, when the hot water supply source is provided by a hot water supply source of a centralized heating system such as an apartment house which is an apartment house, some customers may not be properly supplied with hot water supply because the location and water pressure of the hot water source are different. There was also a problem that could not be seen.

In addition, in the hot water supply system, when the back pressure occurs when the water pressure is different from the cold water system, this is not preferable because the drinking water is contaminated in the piping system causing problems.

Therefore, there are a counter flow prevention and constant amount supply valve which can solve such a problem, and the like of the patent application No. 92-11057 and the patent application 92-23264 of the applicant.

Here, the fluid penetrating portion from the inlet to the outlet is in a straight line, and the fluid penetrating portion has a gate portion for controlling the flow of water, and the gate portion has a stem portion for opening and closing the gate portion and opposed to the stem axis of the stem portion vertically. It is composed of the type of backflow prevention piece, the flow regulating piece, and the gate rubber and the piston which are coupled to the upper side of the stem portion, and the two springs installed on the piston, and these pistons, the springs and the gate rubber interact with each other. This is to discharge the fluid quantitatively, and to operate the gate rubber to close the gate part in an environment where water flows backward.

However, in the case of the above example, since the strainer required to purify the water is designed to be combined and used as a separate tube, two separate products must be used under the environment where strainer function is required. This remained.

As described above, the present inventions of the present applicant have not been preferable because of the above problems.

SUMMARY OF THE INVENTION An object of the present invention is to provide a constant flow check valve capable of improving the problems of the above-described prior invention.

The present invention can be achieved in a relatively simple structure while being able to precisely and automatically control the amount of water discharged by the fixed flow rate check valve, thereby facilitating the production thereof, and having an excellent constant flow rate check valve in terms of handling, management and maintenance. To provide.

It is still another object of the present invention to provide a constant flow check valve in which the constant flow check valve automatically provides a predetermined amount of hot water to a predetermined consumer side according to a temperature change of water in relation to a hot water supply system such as a heating system. It is.

The present invention is a cover portion that can be coupled to the cap to facilitate the maintenance of the internal parts and the like, and the liquid inlet and the liquid outlet formed in the fluid passage of the fluid path in the upper side so as to realize the object of the above example, A valve body provided with an outlet orifice for accommodating the flow check portion, a strainer mesh disposed between the fluid inlet side and the outlet side of the valve body to filter out the debris in which the fluid is mixed; It consists of a constant flow rate checker for performing the check action and automatic control of the fixed flow rate inherent in the outflow office side formed in the lower portion, wherein the constant flow rate checker is configured to check the water flow into the fluid inlet pipe A check and flow control housing having a check orifice which flows to an adjusting part side, the check and Conical check and flow rate adjustment needle, which is built in the volume control housing and opens and closes the check orifice, central hole receiving the pointed side of the check and flow rate adjustment needle, and radially centered around the center hole. It is characterized by a fixed flow rate check valve having a bracket slider having a fluid guide hole therein, and a check valve installed in the tube of the bracket slider, for performing check and pressure adjustment.

Another feature of the present invention is a temperature sensing adjustment mechanism is built in the cover of the valve body side formed on the upper side of the strainer mesh, the temperature sensing adjustment mechanism is in the center and the contact portion in the center of the upper surface of the cover cap A temperature slider having a circular hole of a size suitable for internalizing a thermal spring and a hemispherical part of which the lower part of the body is hemispherical; With a return spring for returning the vertically moved temperature slider, and a temperature housing having a temperature slider in which the thermal spring is built-in and a return hole at the bottom thereof so that the temperature slider can be recessed on the hemispherical side of the temperature slider. It is characterized by a constant flow check valve.

That is, FIGS. 1 and 2 show the oil quantity 1 according to the present invention.

Here, the cover part 16a which can couple | attach the cap 18 so that maintenance and repair of internal parts etc. can be performed on the upper side, the fluid inflow part 16b and the fluid outflow part 16c formed in the fluid flow path of the fluid path | route. ) And a valve body (16) provided with an outlet orifice (16d) formed at a portion for accommodating the constant flow rate check portion (10), the fluid inlet (16b) side and the fluid of the valve body (16). The strainer mesh 3 disposed between the outlet portions 16c to filter out the debris mixed with the oil and the installation door counter action and quantification in the outlet orifice 16d formed at the lower portion thereof. It consists of the structure containing the fixed flow volume check control part 10 which can perform automatic discharge control.

In addition, the flow rate check control unit 10 has a check and flow rate control housing 11 having a check orifice 11a for flowing water introduced into the fluid flow inlet 16b toward the flow rate check station control unit 10. And a check and flow rate automatic adjustment needle (12) having a head portion (12a) and an elliptical tail portion (12b) of a conical shape which are built into the check and flow rate control housing (11) to open and close the check orifice (11a). ) And a central hole 13a of a size suitable for accommodating the elliptical tail portion 12b side of the check and flow rate automatic adjustment needle 12, and a liquid guide hole radially laid around the central hole 13a. A bracket slider 13 having a 13b, and a checker, an adjustment spring 14, etc., which are installed in the pipe of the bracket slider 13 to perform check and pressure adjustment, are provided.

Reference numeral 15 here is an airtight packing, 17 is a nameplate.

3 and 4 show another embodiment of the type equipped with a temperature control mechanism 2 to enable the temperature control function of the present invention.

Here, the temperature control mechanism 20 is internally provided in the cover part 16a of the valve body 16 side formed above the strainer mesh 3, and this temperature control mechanism 20 is a cap of the cover part 16a. Temperature sliders each having a contact portion 23a interviewed with the upper inner wall of (18), a central hole 23b having a size suitable for installing the thermal spring 22 in the center, and a hemispherical portion 23c whose body has a hemispherical shape at the lower portion thereof. (23), the temperature-sensing spring (22) built in the central hole (23b) of the temperature slider 23, and fitted to the lower outer periphery of the temperature slider (23), perpendicular to the temperature-sensing spring (22) in accordance with the temperature change. A hemispherical portion of the temperature slider 23 is accommodated below the return spring 24 for returning the moved temperature slider 23 and the temperature slider 23 and the return spring 24 in which the thermal spring 22 is installed. Associated sphere with the temperature housing 25 having the bore hole 25a to allow the side 23c to be sunk There yirwojyeo to.

In addition, in the above embodiment, the temperature-sensitive reaction part in the center hole 23b of the temperature slider 23 has the coil spring form as the temperature-sensitive part, but the present invention is not limited thereto, and various forms such as bimetal may be provided. Of course.

Here, reference numeral 21 is an O-ring.

5 shows the structure of the 1-way static flow check valve 4 in which the present invention was provided with a 1-flow tubular constant flow check adjustment unit 10.

Here, a constant flow rate check adjusting unit 10 is provided on the outlet orifice 16d side of the valve body 16 having the outlet orifice 16d, and the check flow orifice 11a side of the constant flow rate check adjusting unit 10 is provided. In this state, the straight pipe body 42 is coupled in the state where the strainer mesh 3 is coupled.

6 shows a flow rate check valve 5 of still another embodiment of the present invention.

Here, in the valve body 51 in which the channel is formed so that the flow path flows at right angles, the check flow orifice 52a which is perforated in the direction perpendicular to the flow path passage in the horizontal direction, and the constant flow rate check portion 10 provided at the check orifice 52a side. And the inner tube body 52 supporting the same, and the bimetal 22a is provided at a position corresponding to the check on the fixed flow rate check portion 10 side and the elliptical tail portion 12b side of the automatic adjustment needle 12. It is a structure provided with the temperature control mechanism 20 which has housed ().

7 shows another embodiment in which the guide support is provided in FIG.

Here, the guide support 60 is installed in the needle 12 of the constant flow rate check control unit 10 and is in contact with the check orifice 11a of the flow rate control housing 11 of the guide support 60. In order to prevent the flow of the needle 12 to move up and down, it is provided with a guide support 60 having a plurality of reinforcing ribs 61 and a screw hole 62 in the center and In the head portion 12a of the needle 21, a recessed portion 12a 'is formed, and the through hole 12b' is formed in the recessed portion 12a 'from the center toward the elliptical tail portion 12b side. It consists of the structure that is formed.

The present invention of such a configuration is as follows.

That is, the flow rate check valve 1 according to the present invention is connected to the flow rate check portion 10 in the outflow orifice 16d interposed between the fluid inlet 16b and the fluid outlet 16c of the fluid passage. Regardless of the pressure condition of the water introduced into the latex inlet 16b, the amount of water guided and discharged to the latex outlet 16c is always kept constant while the negative pressure is reversed from the latex outlet 16c when negative pressure is generated. It is to automatically prevent the back flow of water flowing into the latex inlet (16b).

At this time, the check and flow rate automatic adjustment needle 12 for adjusting the hole size of the check orifice 11a of the check and flow rate control housing 11 and the hole size of the outlet orifice 16d, respectively, has its head 12a. It has a hemispherical shape, which acts as a vertical length displacement with respect to the check orifice (11a), and automatically blocks the check orifice (11a) side when negative pressure is generated. The check and flow rate adjustment needle (12) is a bracket slider (13). The screw thread formed on the inner circumferential wall of the central hole 13a on the side and the thread formed on the lower side of the head 12a of the needle 12 are screwed together, and the bracket slider 13 is provided with a check and adjustment spring 14. ), The check and flow rate automatic adjustment needle 12 is vertically displaced according to the negative pressure condition.

In addition, the water flowing through the hole of the check orifice 11a into the fluid guide hole 13b radially installed around the center hole 13a of the bracket slider 13 is discharged toward the fluid outlet 16c side. will be.

At this time, the action of discharging the fixed oil flow amount to the fluid outlet part 16c is performed by the tail portion 12b of the check force and the flow rate automatic adjustment needle 12 in a conical shape, and when the water pressure on the check orifice 11a side is strong, By reducing the hole size on the outlet orifice 16d side while suppressing the spring 14, a certain amount is provided to the latex outlet 16c side as a function of the water intensity and the discharge amount, and on the other hand, the check orifice 11a side When the water pressure is low, a certain amount of water can also flow out in relation to the flow rate of the water and the hole opening area by expanding the size of the hole on the outlet orifice 16d relatively.

In addition, the strainer mesh 3 installed while surrounding the constant flow rate checker 10 filters the water flowing through these paths so that the water circulated through the pipe can be kept clean.

In addition, when the dust is caught in the strainer mesh 3 to clean it, the cap 18 screwed to the cover portion 16a side is removed, the strainer mesh 3 can be dismantled, washed, and reinserted. Even when there is an abnormality in the flow rate checker 10, the partially damaged parts can be easily replaced or managed and maintained.

On the other hand, when using the constant flow rate check valve (1) for hot water, such as a boiler, the temperature sensing adjustment mechanism 20 is installed on the cap (18) side.

The temperature sensing control mechanism 20 has a temperature spring 22 which expands and contracts in response to a change in temperature and changes its expansion length according to a change in water temperature, so that when hot water flows into the fluid inlet 16b, The spring 22 is extended vertically to check the temperature slider 23 and to reduce the fluid outflow volume on the check orifice 11a side of the flow regulating housing 11 so that a small amount of quantity is supplied to the fluid outlet part 16c. When the hot water temperature is lowered, the temperature spring 22 is contracted while the temperature spring 22 is retracted so as to widen the fluid passage through the check orifice 11a side to adjust the amount of water.

At this time, the temperature spring 922 has a characteristic that the thermal expansion and contraction process is changed to the hysteresis loop phase, so that the water spring during expansion slows the time to return to the contraction by hysteresis, so that this phenomenon can be reduced. (24) helps to make the path of thermal expansion time and contraction time almost the same.

In the temperature slider 23, the hemisphere 23c may block the check orifice 11a side when the temperature increases a lot.

Therefore, in the constant flow rate check valve 1 equipped with the temperature sensing control mechanism 20, the amount of hot water, such as a boiler, can be controlled according to its temperature, and on the other hand, a constant amount can be discharged without change according to the hydraulic conditions. Will be.

In addition to the present invention, the pipe is made of a letter A, so that the A-channel flow path of the pipe can be easily designed, and flexibility can be given to the piping installation in the xy and yz planes of the rectangular coordinate three-dimensional.

In addition, in the case of FIGS. 5 and 6, another type of constant flow check valve having a straight flow check valve 4 and a flow path in a right angle direction can be used, respectively, coupled to a straight pipe body. Of course, it can be utilized as (5), the flow rate check portion 10 and the temperature sensing adjustment mechanism 20, etc. in these can be expected to fully operate the same as illustrated in FIGS. It is.

On the other hand, in the case of Figure 7, the through-hole 12b 'of the needle 912 with the guide support 60 inserted into the recess 12a' formed in the head portion 12a of the needle 12. The screw 70 is inserted into the screw hole 62 of the guide support 60 and is installed to be brought into contact with the inner diameter of the check orifice 11a. In this state, the water flows through the fluid inlet 16b. In the overflow which flows in and discharges to the fluid outlet part 16c, the introduced water presses the needle 12 to which the guide support 60 is coupled to open the check orifice 11a of the flow regulating housing 11, and the negative pressure. When it occurs, the needle 12 is moved from the fluid outlet part 16c to the fluid inlet part 16b to close the check orifice 11a. Thus, when the needle 12 vertically acts, the needle The reinforcing rib 61 of the guide support 60 coupled to (12) is guided in contact with the inner diameter of the check orifice 11a. Since the lifting to prevent the flow of the needle 12 is to be upper and lower work reliably.

The present invention is a simple structure of the constant flow check valve can be supplied to a predetermined portion irrespective of the hydraulic change, it is possible to obtain a nationwide energy saving and water-saving effect well, easy repair using a cap, While it is possible to facilitate the maintenance and cleaning of the strainer mesh, etc. On the other hand, in the hot water piping system such as a boiler, there is an advantageous feature that the amount of hot water may be arbitrarily varied according to the hot water.

Claims (5)

A valve means having a latex inlet and an latex outlet so that a certain amount of water can be discharged to the outlet regardless of the pressure change of the latex inlet, so that the cap 18 can be easily repaired and managed on the upper side. Cover part 16a which can be combined, the fluid inflow part 16b and the fluid outflow part 16c which are formed in the oil path of the L-shaped path | route, and the outflow of the site | part side in which the fixed-flow-rate check part 10 is accommodated. Orifice 16d is disposed between the valve body 16 and the fluid inlet 16b side and the fluid outlet 16c side of the valve body 16, respectively. A strainer mesh (3) for filtering the water, and a constant flow rate checker (10) installed in the outflow orifice (16d) formed at the lower portion of the strainer mesh (3), and having a check action and automatic control of the flow rate. The flow rate check control unit 10 A check and flow control housing 11 having a check orifice 11a for flowing water introduced into the fluid flow inlet 16b toward the flow rate check control unit 10, and installed in the check and flow control housing 11. A central hole 13a and a central hole 13a of a size suitable for accommodating the conical head portion 12a and the elliptical tail portion 12b that open and close the check orifice 11a side thereof. It consists of a bracket slider 13 having a fluid guide hole 13b which is radially laid, and a check and an adjustment spring 14 installed in the pipe of the bracket slider 13 to perform check and pressure adjustment. A constant flow check valve. 2. The opening of the emulsion according to claim 1, wherein the valve body (16) formed on the upper side of the strainer mesh (3) is provided on the cover (16a) side and flows into the check orifice (11a) side according to the temperature change flowing in the pipe. Constant flow check valve, characterized in that the configuration is provided with a temperature-sensing control mechanism 20 to adjust the volume of the space. The temperature sensing control mechanism (20) is built in the cover portion (16a) on the valve body (16) side formed above the strainer mesh (3); The temperature sensing control mechanism 20 has a contacting portion 23a which is in contact with the upper inner wall of the cap 18 of the cover portion 16a, and a central hole 23b and a body suitable for installing the thermal spring 22 at the center thereof. A temperature slider 23 each having a hemispherical portion 23c having a lower hemispherical shape, a temperature-sensing spring 22 built into the central hole 23b of the temperature slider 23, and the temperature slider 23 A return spring 24 fitted to the lower outer circumferential surface to return the temperature slider 23 vertically moved to the thermal spring 22, a temperature slider 23 in which the thermal spring 22 is built, and a return spring 24; A constant flow check valve comprising a temperature housing (25) having a bore hole (25a) in which a hemispherical portion (23c) side of the temperature slider (23) can be sunk while receiving. 2. The fixed flow rate check valve (4) according to claim 1, wherein the constant flow check valve (2) consists of a straight one-way flow check valve (4), which has a constant flow check on the outlet orifice (16d) side of the valve body (41) having an outlet orifice (16d). The adjusting part 10 is provided, and the straight flow pipe body 42 is connected to the valve body 16 in the state in which the strain flow check adjusting part 10 is coupled to the check orifice 11a with the strainer mesh 3 coupled thereto. A constant flow check valve characterized by a door-to-door configuration in a combined configuration. 3. The constant flow check valve as set forth in claim 2, wherein the temperature spring (22), which is a temperature-sensitive reaction component embedded in the central hole (23b) of the temperature slider (23), is made of bimetal.