CN212745199U - Pressure relief drain valve and heating furnace system comprising same - Google Patents
Pressure relief drain valve and heating furnace system comprising same Download PDFInfo
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- CN212745199U CN212745199U CN202021702282.7U CN202021702282U CN212745199U CN 212745199 U CN212745199 U CN 212745199U CN 202021702282 U CN202021702282 U CN 202021702282U CN 212745199 U CN212745199 U CN 212745199U
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- adjusting rod
- drain valve
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Abstract
The utility model discloses a pressure relief drain valve and a heating furnace system comprising the same, wherein a valve body of the pressure relief drain valve is provided with a cavity and a pressure relief outlet, the pressure relief outlet is communicated with the cavity, a valve core is positioned in the cavity, one end of a regulating rod is fixedly connected with the valve core, the other end of the regulating rod extends out of the exterior of the valve body and is fixedly connected with a regulating knob, and the regulating knob drives the regulating rod to rotate around an axis; the cavity is provided with a sealing surface surrounding the adjusting rod, the sealing surface extends to the pressure relief water outlet along the axial direction of the adjusting rod, and the peripheral surface of the valve core is in sealing fit with the sealing surface and can slide relatively; the side of the outer part of the valve body facing the adjusting knob is provided with an inclined plane which surrounds the axis of the adjusting rod and is continuously increased in an increasing mode, the height of the inclined plane in the axial direction of the adjusting rod is larger than the width of the sealing surface in the axial direction of the adjusting rod, and the adjusting knob is provided with a matching surface capable of sliding on the inclined plane. The pressure relief drain valve realizes two functions of automatic pressure relief and drainage which are integrated on one valve body simultaneously, and has the advantages of simple structure and convenient operation.
Description
Technical Field
The utility model relates to a pressure release drain valve and contain its heating furnace system.
Background
In the process of heating the volume type electric water heater, the volume of hot water is increased along with the temperature rise under the action of expansion with heat and contraction with cold, so that the pressure of the inner container of the volume type water heater is increased, the inner container is possibly broken or a pipeline connector is loosened, and the water heater is subjected to water leakage or damage. Therefore, the pressure relief valve is used in all the existing positive displacement water heaters to partially discharge the water inside the water heater when the pressure in the inner container of the water heater reaches a certain pressure, thereby reducing the pressure in the inner container. However, the conventional pressure relief valve is only activated when the pressure in the inner container exceeds a certain pressure, and is not activated when the pressure is within a limited pressure range. If the water in the liner needs to be drained, a water outlet needs to be additionally arranged and a drain valve needs to be installed, so that the position on the water heater is occupied. Although some pressure relief valves can also realize the function of active drainage, the structure is complex, the production cost is high, and the operation is complex.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the defect among the prior art, provide a pressure release drain valve and contain its heating furnace system.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
the utility model provides a pressure release drain valve, includes valve body, case, regulation pole, the valve body has cavity and pressure release outlet, the pressure release outlet with the cavity intercommunication, the case is located in the cavity, the one end of adjusting the pole with case fixed connection, its characterized in that:
the pressure relief drain valve further comprises an adjusting knob, the other end of the adjusting rod extends out of the valve body and is fixedly connected with the adjusting knob, and the adjusting knob drives the adjusting rod to rotate around the axis;
the cavity is provided with a sealing surface surrounding the adjusting rod, the sealing surface extends to the pressure relief water outlet along the axial direction of the adjusting rod, and the peripheral surface of the valve core is in sealing fit with the sealing surface and can slide relatively;
the valve body is characterized in that one side, facing the adjusting knob, of the outer portion of the valve body is provided with an inclined surface which surrounds the axis of the adjusting rod and is continuously increased in an increasing mode, the height of the inclined surface in the axial direction of the adjusting rod is larger than the width of the sealing surface in the axial direction of the adjusting rod, and the adjusting knob is provided with a matching surface capable of sliding on the inclined surface.
In this scheme, this pressure release drain valve not only can move towards pressure release outlet one side and open the pressure release outlet and carry out the drainage pressure release when valve body internal pressure surpasss certain pressure value, still can be in when normal range at the valve body internal pressure, slides on the inclined plane through rotating adjust knob and drives the regulation pole and drive the case and remove in the cavity to make the case open the pressure release outlet and carry out the drainage. Not only realizes the integration of two functions of automatic pressure relief and water drainage on one valve body, but also has simple structure and convenient operation.
Preferably, one side of the valve body facing the adjusting knob is provided with two semi-annular bosses protruding towards the adjusting knob, and the two semi-annular bosses are symmetrically arranged by taking the axis of the adjusting rod as a symmetric center;
the number of the inclined planes is two, and the two inclined planes are respectively arranged on the semi-annular boss.
In this scheme, through setting up two centrosymmetric semi-annular bosss, make adjust knob keep stable and balanced ground slip when rotating.
Preferably, the semi-annular boss is further provided with a first plane, the first plane is perpendicular to the axis of the adjusting rod, and the first plane is connected with the lowest end of the inclined plane.
In this scheme, through set up first plane at the least significant end on inclined plane, can judge the case and seal the water inlet completely when adjusting knob is in first plane position.
Preferably, the semi-annular boss is further provided with a second plane, the second plane is perpendicular to the axis of the adjusting rod, and the second plane is connected with the highest end of the inclined plane.
In this scheme, through set up the second plane at the top of inclined plane, can judge that the case will let out the pressure release outlet and open completely when adjusting knob is in the second plane position.
Preferably, a limiting block is further arranged on the second plane, the limiting block extends from the second plane to the direction of the adjusting knob, and the limiting block is located at one end, far away from the inclined plane, of the second plane.
In the scheme, the pressure relief water outlet is prevented from being closed by returning the adjusting knob to the first plane position from the second plane position due to accidents.
Preferably, the pressure relief drain valve further comprises an elastic member, the elastic member is disposed in the cavity, the elastic member is located on one side of the valve core facing the adjusting knob, one end of the elastic member abuts against the valve core, and the other end of the elastic member abuts against the valve body.
In the scheme, the valve core closes the pressure relief water outlet again after the pressure relief water discharge valve automatically discharges water and relieves pressure, so that liquid is prevented from flowing out continuously.
Preferably, the elastic member is sleeved on the adjusting rod.
In this scheme, with the elastic component cover make the elastic component receive external force compression when compressing along fixed direction compression on adjusting the pole, can make the elastic component just kick-back along the direction opposite with compression direction when kick-backing simultaneously.
Preferably, the valve body is further provided with a water inlet, and the valve core is arranged between the water inlet and the pressure relief water outlet.
In this scheme, through the position control water inlet of case and whether communicate with the pressure release outlet.
Preferably, the pressure relief drain valve further comprises a sealing ring, and the sealing ring is located between the outer peripheral surface of the valve core and the sealing surface.
In this scheme, set up the leakproofness between the sealed face of the outer peripheral face of sealing washer reinforcing case and cavity, avoid the valve body to leak.
A heating stove system, heating stove system contains as above pressure release drain valve.
On the basis of the common knowledge in the field, the above preferred units can be combined at will to obtain the preferred embodiments of the present invention.
The utility model discloses an actively advance the effect and lie in:
the utility model discloses a pressure release drain valve not only can move towards pressure release outlet one side and open the pressure release outlet and carry out the drainage pressure release when valve body internal pressure surpasss certain pressure value, still can be in when normal range at the valve body internal pressure, slides on the inclined plane through rotating adjust knob and drives the regulation pole and drive the case and remove in the cavity to make the case open the pressure release outlet and carry out the drainage. The valve body not only realizes the two functions of automatic pressure relief and water drainage, but also has simple structure and convenient operation.
Drawings
Fig. 1 is a schematic structural view of a pressure relief drain valve according to a preferred embodiment of the present invention.
Fig. 2 is an exploded view of the pressure relief drain valve of fig. 1.
Fig. 3 is a schematic structural view illustrating an adjusting knob of a pressure relief drain valve according to a preferred embodiment of the present invention, which is located on a first plane.
Fig. 4 is a schematic structural view illustrating an adjusting knob of the pressure relief drain valve according to the preferred embodiment of the present invention located on a second plane.
Fig. 5 is a schematic structural diagram of a sealing cover plate according to a preferred embodiment of the present invention.
Fig. 6 is a schematic structural diagram of an adjusting knob according to a preferred embodiment of the present invention.
Fig. 7 is a schematic structural view of a heating furnace system according to a preferred embodiment of the present invention.
Description of reference numerals:
pressure relief drain valve 100
The water inlet 103
Valve core 2
Outer peripheral surface 201
Annular groove 202
Adjusting lever 3
Adjusting knob 4
Through hole 601
Detailed Description
The present invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings, but the present invention is not limited thereto.
As shown in fig. 1, the pressure relief and drainage valve 100 of the present embodiment includes a valve body 1, a valve core 2, an adjusting rod 3, and an adjusting knob 4. The valve body 1 is provided with a cavity 101, a pressure relief water outlet 102 and a water inlet 103, wherein the pressure relief water outlet 102 and the water inlet 103 are communicated with the cavity 101. The valve core 2 is positioned in the cavity 101 and is arranged between the water inlet 103 and the pressure relief water outlet 102. One end of the adjusting rod 3 is fixedly connected with the valve core 2, and the other end of the adjusting rod 3 extends out of the valve body 1. The cavity 101 of the valve body 1 has a sealing surface 1011 surrounding the adjusting rod 3, the sealing surface 1011 extends to the pressure relief outlet 102 along the axial direction of the adjusting rod 3, and the outer peripheral surface 201 of the valve core 2 is in sealing fit with the sealing surface 1011 and can slide relatively.
As shown in fig. 1, an adjusting knob 4 is further disposed outside the valve body 1, and the adjusting rod 3 penetrates through one end extending out of the valve body 1 and is fixedly connected with the adjusting knob 4. The adjusting knob 4 can drive the adjusting rod 3 to rotate around the axis thereof, and the adjusting knob 4 can slide along the inclined plane 602 when rotating, so that the adjusting rod 3 drives the valve core 2 to move.
As shown in fig. 6, the adjusting knob 4 has a mating surface 401 on the side facing the valve body 1, which surface can slide on the inclined surface 602. As shown in fig. 3 to 5, the side of the valve body 1 facing the adjusting knob 4 from the outside has a continuously increasing inclined surface 602 surrounding the axis of the adjusting rod 3, and the height of the inclined surface 602 in the axial direction of the adjusting rod 3 is greater than the width of the sealing surface 1011 in the axial direction of the adjusting rod 3, so that the adjusting knob 4 has enough rotating height on the inclined surface 602 to allow the valve core 2 to open the pressure relief outlet 102.
The pressure relief and drainage valve 100 can not only automatically push the valve core 2 to move towards one side of the pressure relief and drainage port 102 to open the pressure relief and drainage port 102 for drainage and pressure relief when the pressure in the valve body 1 exceeds a certain pressure value, but also drive the adjusting rod 3 to drive the valve core 2 to move in the cavity 101 by rotating the adjusting knob 4 to slide on the inclined surface 602 when the pressure in the valve body 1 is within a normal range, so that the valve core 2 opens the pressure relief and drainage port 102 for drainage. The valve body 1 is integrated with two functions of automatic pressure relief and water drainage, and the valve body is simple in structure and convenient to operate.
As shown in fig. 1-2, the pressure relief drain valve 100 further includes an elastic member 5, the elastic member 5 is disposed in the cavity 101, one end of the elastic member 5 abuts against the valve element 2, the other end of the elastic member 5 abuts against the valve body 1, and the elastic member 5 applies a force to the valve element 2 to move the valve element toward the water inlet 103.
The elastic member 5 in this embodiment is a spring, the spring is sleeved on the adjusting rod 3, one end of the spring abuts against the valve element 2, and the other end of the spring abuts against the valve body 1.
In other embodiments, the spring may also be disposed on the other side of the valve core 2, and at this time, two ends of the spring need to be fixedly connected to the valve core 2 and the valve body 1, respectively. The elastic member 5 may also be a spring or other elastic structure.
The pressure relief and drainage valve 100 can automatically push the valve core 2 to move towards the pressure relief and drainage port 102 side to open the pressure relief and drainage port 102 for drainage and pressure relief when the pressure in the valve body 1 exceeds a certain pressure value, thereby avoiding damage caused by excessive pressure in an external container or pipeline. After the pressure is recovered to normal through drainage and pressure relief, the elastic element 5 pushes the valve core 2 to reset under the action of the elastic force, and the pressure relief water outlet 102 is closed, so that the pressure relief water outlet 102 is prevented from being normally opened.
As shown in fig. 1, in the present embodiment, the valve body 1 is composed of a cylinder body having a cylindrical inner cavity and a sealing cover plate 6, both ends of the cylinder body are provided with openings communicated with the cylindrical inner cavity, wherein the opening at one end of the cylinder body is closed by the sealing cover plate 6, and in order to facilitate installation of components such as the valve core 2 in the cavity 101, the sealing cover plate 6 is fixed on the valve body 1 by screw connection. The middle part of the sealing cover plate 6 is provided with a through hole 601, the other end of the adjusting rod 3 extends out of the valve body 1 through the through hole 601, and the adjusting rod 3 is sealed with the through hole 601 and can slide relatively. The opening at the other end of the cylinder body is used as a water inlet 103, and an internal thread connected with an external joint is arranged in the opening of the water inlet 103. The pressure relief water outlet 102 is arranged on the side wall of the cylinder body and close to one side of the water inlet 103.
In other embodiments, the sealing cover 6 may be fixed on the cylinder by welding, gluing, etc. The opening of the water inlet 103 can also be provided with structures such as external threads or buckles to be connected with an external connector.
Of course, in other embodiments, the pressure relief vent 102 and the water inlet 103 may both be disposed on the sidewall of the cylindrical barrel. The valve body 1 can also be in other structural forms, and the specific structure is not described in detail herein.
As shown in fig. 2 to 5, in the present embodiment, the inclined plane 602 is disposed on the sealing cover plate 6, two semi-annular bosses 60 protruding toward the adjusting knob 4 are disposed on one side of the sealing cover plate 6 facing the adjusting knob 4, the inclined plane 602 is disposed on each semi-annular boss 60, and the two semi-annular bosses 60 are disposed in central symmetry with the axis of the adjusting lever 3 as a symmetry center. By providing two semi-annular bosses 60 with central symmetry, the adjustment knob 4 slides stably and in balance when it is turned.
As shown in fig. 3-5, the semi-annular boss 60 further has a first plane 603 and a second plane 604, and the first plane 603 and the second plane 604 are perpendicular to the axis of the adjustment lever 3. The first plane 603 is connected to the lowest end of the inclined plane 602, and the second plane 604 is connected to the highest end of the inclined plane 602. The second plane 604 is further provided with a limit block 605, the limit block 605 extends from the second plane 604 to the direction of the adjusting knob 4, and the limit block 605 is located at one end of the second plane 604, which is far away from the inclined plane 602.
By providing the first plane 603 and the second plane 604 at the lowest end and the highest end of the inclined plane 602, respectively, the position of the valve core 2 can be determined by adjusting the position of the knob 4 to judge whether to completely open the pressure relief outlet 102 or completely close the inlet 103. The stop 605 is provided to prevent the adjusting knob 4 from accidentally returning to the first plane 603 from the second plane 604 position to close the pressure relief vent 102.
In the present embodiment, as shown in fig. 1 and 3, when the adjusting knob 4 is located on the first plane 603, the valve core 2 is located between the water inlet 103 and the pressure relief water outlet 102, and the valve core 2 seals the water inlet 103, so that liquid outside the valve body 1 cannot enter the cavity 101. When the adjusting knob 4 is located on the second plane 604, the valve core 2 is located on the side of the pressure relief water outlet 102 away from the water inlet 103, the water inlet 103 is communicated with the pressure relief water outlet 102, and the liquid outside the valve body 1 enters the cavity 101 through the water inlet 103 and then is discharged through the pressure relief water outlet 102.
The pressure relief drain valve 100 further includes a sealing ring 7, and the sealing ring 7 is located between the outer circumferential surface 201 of the valve element 2 and the sealing surface 1011. As shown in fig. 1 and 2, the outer peripheral surface 201 of the valve core 2 has an annular groove 202 in the circumferential direction, and the sealing ring 7 is sleeved in the annular groove 202. The sealing ring 7 is arranged to enhance the sealing property between the outer peripheral surface 201 of the valve core 2 and the sealing surface 1011 of the cavity 101, so as to prevent the valve body 1 of the pressure relief drain valve 100 from water leakage.
As shown in fig. 7, the present embodiment also discloses a heating stove system including a heating stove 200, a heat radiating member 300, and the above-described pressure-relief drain valve 100. The water inlet of this radiating piece 300 passes through the pipeline intercommunication with the delivery port of heating stove 200, and the pipeline of the water inlet of connecting heating stove 200 and the delivery port of radiating piece 300 passes through the three-way valve and communicates with the water inlet 103 of this pressure release drain valve 100. When the pressure in the heating stove 200 or the heat sink 300 is too high, the valve core 2 is pushed to move to open the pressure relief water outlet 102 for water drainage and pressure relief, and after the pressure in the heating stove 200 or the heat sink 300 is normal, the spring pushes the valve core 2 to reset to close the pressure relief water outlet 102, so that the pressure relief water outlet 102 is prevented from being normally opened.
Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (10)
1. The utility model provides a pressure release drain valve, includes valve body, case, regulation pole, the valve body has cavity and pressure release outlet, the pressure release outlet with the cavity intercommunication, the case is located in the cavity, the one end of adjusting the pole with case fixed connection, its characterized in that:
the pressure relief drain valve further comprises an adjusting knob, the other end of the adjusting rod extends out of the valve body and is fixedly connected with the adjusting knob, and the adjusting knob drives the adjusting rod to rotate around the axis;
the cavity is provided with a sealing surface surrounding the adjusting rod, the sealing surface extends to the pressure relief water outlet along the axial direction of the adjusting rod, and the peripheral surface of the valve core is in sealing fit with the sealing surface and can slide relatively;
the valve body is characterized in that one side, facing the adjusting knob, of the outer portion of the valve body is provided with an inclined surface which surrounds the axis of the adjusting rod and is continuously increased in an increasing mode, the height of the inclined surface in the axial direction of the adjusting rod is larger than the width of the sealing surface in the axial direction of the adjusting rod, and the adjusting knob is provided with a matching surface capable of sliding on the inclined surface.
2. The pressure relief drain valve according to claim 1, wherein one side of the valve body facing the adjusting knob is provided with two semi-annular bosses protruding towards the adjusting knob, and the two semi-annular bosses are symmetrically arranged by taking the axis of the adjusting rod as a symmetric center;
the number of the inclined planes is two, and the two inclined planes are respectively arranged on the semi-annular boss.
3. The pressure relief drain valve according to claim 2, wherein said semi-annular boss further has a first plane thereon, said first plane being perpendicular to the axis of said adjustment lever, said first plane being connected to the lowest end of said inclined plane.
4. The pressure relief drain valve according to claim 2, wherein said semi-annular boss further has a second plane thereon, said second plane being perpendicular to the axis of said adjustment lever, said second plane being connected to the highest end of said inclined surface.
5. The pressure relief drain valve according to claim 4, wherein a limiting block is further arranged on the second plane, the limiting block extends from the second plane to the direction of the adjusting knob, and the limiting block is located at one end, far away from the inclined plane, of the second plane.
6. The pressure relief drain valve according to claim 1, further comprising an elastic member disposed in the cavity, wherein the elastic member is located on a side of the valve core facing the adjusting knob, one end of the elastic member abuts against the valve core, and the other end of the elastic member abuts against the valve body.
7. The pressure relief drain valve according to claim 6, wherein said elastic member is fitted over said adjustment lever.
8. The pressure relief drain valve according to claim 1, wherein said valve body further has a water inlet, and said valve core is disposed between said water inlet and said pressure relief drain.
9. The pressure relief drain valve of claim 1, further comprising a sealing ring positioned between the outer peripheral surface of the valve core and the sealing surface.
10. A heating stove system, characterized in that the heating stove system comprises a pressure-releasing drain valve according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021702282.7U CN212745199U (en) | 2020-08-14 | 2020-08-14 | Pressure relief drain valve and heating furnace system comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021702282.7U CN212745199U (en) | 2020-08-14 | 2020-08-14 | Pressure relief drain valve and heating furnace system comprising same |
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| Publication Number | Publication Date |
|---|---|
| CN212745199U true CN212745199U (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021702282.7U Active CN212745199U (en) | 2020-08-14 | 2020-08-14 | Pressure relief drain valve and heating furnace system comprising same |
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| Country | Link |
|---|---|
| CN (1) | CN212745199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114634147A (en) * | 2022-04-20 | 2022-06-17 | 塔罗斯科技股份有限公司 | Pressure relief structure of cask |
-
2020
- 2020-08-14 CN CN202021702282.7U patent/CN212745199U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114634147A (en) * | 2022-04-20 | 2022-06-17 | 塔罗斯科技股份有限公司 | Pressure relief structure of cask |
| CN114634147B (en) * | 2022-04-20 | 2024-04-23 | 塔罗斯科技股份有限公司 | Decompression structure of wine barrel |
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