CN216743050U - Low-temperature-resistant large-flow novel valve terminal - Google Patents
Low-temperature-resistant large-flow novel valve terminal Download PDFInfo
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- CN216743050U CN216743050U CN202123146567.4U CN202123146567U CN216743050U CN 216743050 U CN216743050 U CN 216743050U CN 202123146567 U CN202123146567 U CN 202123146567U CN 216743050 U CN216743050 U CN 216743050U
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Abstract
The application discloses a novel low-temperature-resistant large-flow valve island, which comprises a solenoid valve body and a valve seat; the bottom of the electromagnetic valve body is provided with a plurality of runway-shaped valve body air holes, and the side part of the electromagnetic valve body is provided with a valve body air hole communicated with the plurality of runway-shaped valve body air holes; the top of the valve seat is provided with runway-shaped valve seat air holes which correspond to the runway-shaped valve body air holes one by one, and the side part of the valve seat is provided with valve seat side air holes which correspond to the runway-shaped valve seat air holes in position and are communicated with the runway-shaped valve seat air holes; the runway-shaped valve body air hole is hermetically connected with the runway-shaped valve seat air hole through a sealing element; all be provided with a plurality of screw holes on solenoid valve body, the disk seat, and through the cooperation spiro union cooperation of screw and screw hole between solenoid valve body and the disk seat. The utility model provides a novel valve island has higher low temperature resistance and large-traffic air vent, satisfies extremely cold low temperature environmental condition's use, avoids appearing gas leakage, guarantees that the valve island can have the gas supply of sufficient flow.
Description
Technical Field
The utility model relates to an industrial automation control equipment technical field, in particular to large-traffic novel valve island of low temperature resistant.
Background
The valve island is a new generation of electrical integrated control components. And a plurality of electromagnetic valves are integrated on the same valve seat together. The valve island technology and the field bus technology are combined, so that the wiring of the electromagnetic valve is simple and convenient, a large amount of space is saved, and the work of debugging, later maintenance and the like of the system is greatly changed.
However, as the application of the valve island in the traveling machinery and the fire-fighting engineering is deeper and deeper, especially when the requirements for system elements in the field of fire-fighting vehicle engineering are more severe, the traditional inlet valve island can not meet the higher requirements of vehicles. Particularly, when the vehicle is in an extremely cold and low-temperature environment (41 ℃), the traditional valve island has gas leakage and other conditions in different degrees, the leakage condition in the use process brings many problems to the normal operation of the vehicle, and even threatens the life safety of related personnel and causes certain property loss in serious cases. Meanwhile, the expensive selling price and the long shelf life of the inlet valve island also cause the manufacturing cost of the vehicle to be further increased. Therefore, a new valve island resistant to low temperature is needed.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a high-traffic novel valve terminal of low temperature resistant, improves low temperature resistant performance, satisfies extremely cold low temperature environmental condition's use, avoids appearing gas leakage and guarantees that the valve terminal can have sufficient flow gas supply.
In order to achieve the above purpose, the present application provides the following technical solutions: a novel low-temperature-resistant large-flow valve terminal comprises a solenoid valve body and a valve seat; the bottom of the electromagnetic valve body is provided with a plurality of runway-shaped valve body air holes, and the side part of the electromagnetic valve body is provided with a valve body air measuring hole communicated with the plurality of runway-shaped valve body air holes; the top of the valve seat is provided with a runway-shaped valve seat air hole which is in one-to-one correspondence with the runway-shaped valve body air holes, and the side part of the valve seat is provided with a valve seat side air hole which is in correspondence with the runway-shaped valve seat air hole and is communicated with the runway-shaped valve seat air hole; the runway-shaped valve body air hole is hermetically connected with the runway-shaped valve seat air hole through a sealing element; the electromagnetic valve comprises an electromagnetic valve body and a valve seat, wherein the electromagnetic valve body and the valve seat are respectively provided with a plurality of threaded holes, and the electromagnetic valve body and the valve seat are matched with each other in a threaded mode through screws in a matched mode.
Preferably, the length of the sealing element is L, the depth of the racetrack-shaped valve seat air hole is H, wherein L is H +0.2mm, and the upper part and the lower part of the sealing element are respectively in plug-in fit with the racetrack-shaped valve body air hole and the racetrack-shaped valve seat air hole.
Preferably, the center line of the sealing element in the length direction is overlapped with the center line of the runway-shaped valve seat air hole in the length direction; the vertical distance between the point on one side of the center line on the edge of the sealing element and the center line is P1, and the vertical distance between the point on the same side of the center line on the edge of the air hole of the racetrack-shaped valve seat and the center line is P2, wherein P1 is P2+0.1 mm.
Preferably, the center line of the sealing element in the length direction is overlapped with the center line of the runway-shaped valve body air hole in the length direction; the vertical distance between the point on one side of the central line on the edge of the sealing element and the central line is P1, and the vertical distance between the point on the same side of the central line on the edge of the air hole of the racetrack-shaped valve body and the central line is P3, wherein P1 is P3+0.05 mm.
Preferably, the bottom of the solenoid valve body is provided with 5 racetrack-shaped valve body air holes.
Has the advantages that: it is well known that the failure of the sealing effect of the valve island is the main cause of the leakage at low temperatures (-41 c), and the failure of the sealing effect is caused by the shrinkage of the seal. Theoretically, the problem of air leakage at low temperature (-41 ℃) can be solved by replacing the sealing ring which can resist low temperature, and experimental demonstration shows that the air leakage condition can still occur only by changing the sealing material, and only the air leakage degree and the air leakage probability are less than those of the conventional sealing ring. When the sealing member shrinks at low temperature (-41 ℃), an opposite repulsive force is generated due to the structure of the sealing member. The runway-shaped sealing element has smaller shrinkage degree at low temperature (-41 ℃) due to the self structure, the size of the corresponding runway-shaped valve seat air hole is 0.1mm smaller than that of the sealing element, the sealing element can be embedded by applying external force, and the shrinkage degree of the sealing element is reduced at the low temperature (-41 ℃) due to the tolerance design. On the other hand, the top surface of the valve seat at the high position of one side where the sealing element and the solenoid valve body are installed is 0.2mm, and the value is within the contraction range at low temperature (-41 ℃), so that when the solenoid valve body is fixed on the valve seat, excellent and effective sealing performance can be still kept in the environment at low temperature (-41 ℃), and the problem of gas leakage is avoided. Meanwhile, the gas flow can be improved through the design of the runway-shaped valve seat gas hole and the runway-shaped valve body gas hole, and the gas supply with enough flow of the valve island is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a novel low-temperature-resistant high-flow-rate valve island in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a solenoid valve body according to an embodiment of the present application;
FIG. 3 is a schematic view of a valve seat structure according to an embodiment of the present application;
FIG. 4 is a schematic front view of a valve seat in an embodiment of the present application;
FIG. 5 is a schematic cross-sectional view of A-A in FIG. 4;
FIG. 6 is an enlarged partial view of FIG. 5 at B;
FIG. 7 is a schematic diagram illustrating the dimensional relationship between the racetrack valve body air hole, the racetrack valve seat air hole, and the sealing element in an embodiment of the present application.
Reference numerals: 1. a solenoid valve body; 2. a valve seat; 3. a racetrack valve body air hole; 4. a racetrack valve seat air hole; 5. a valve seat side vent hole; 6. a threaded hole; 7. and a vent hole is measured on the valve body.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
The standard parts used in the application document can be purchased from the market, and can be customized according to the description and the description of the attached drawings, the specific connection mode of each part can be conventional means such as bolts, rivets, welding and the like mature in the prior art, and machines, parts and equipment are of conventional models in the prior art.
It should be noted that, in this document, the term "comprises/comprising" is intended to cover a non-exclusive inclusion, so that a process, method, article or apparatus that comprises a list of elements does not include only those elements but also other elements not expressly listed or inherent to such process, method, article or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Referring to fig. 1, a novel valve island with low temperature resistance and large flow rate comprises a solenoid valve body 1 and a valve seat 2. As shown in fig. 2, the bottom of the solenoid valve body 1 is provided with 5 independent racetrack-shaped valve body air holes 3, and the side of the solenoid valve body 1 is provided with a valve body air hole 7 communicated with the racetrack-shaped valve body air holes 3. As shown in fig. 3 and 4, the top of the valve seat 2 is provided with a plurality of racetrack-shaped valve seat air holes 4 corresponding to the racetrack-shaped valve body air holes 3 one by one, and it should be noted that the racetrack-shaped valve seat air holes 4 on the valve seat 2 are provided with a plurality of rows, so that the plurality of solenoid valve bodies 1 are mounted on the same valve seat 2. As shown in fig. 3, 4, and 5, the valve seat 2 is provided at a side portion thereof with valve seat side vent holes 5 corresponding to the racetrack-shaped valve seat air holes 4 in position and communicating with the racetrack-shaped valve seat air holes 4. The runway-shaped valve body air hole 3 is in sealing connection with the runway-shaped valve seat air hole 4 through a sealing element, and correspondingly, the sealing element is any sealing element with a runway-shaped cross section in the prior art. All be provided with a plurality of screw holes 6 on solenoid valve body 1, the disk seat 2, and through the cooperation spiro union cooperation of screw and screw hole 6 between solenoid valve body 1 and the disk seat 2 to the power through the screw installation makes solenoid valve body 1 to the disk seat 2 application of force, makes the sealing member can obtain effectual connection.
In this embodiment, referring to fig. 6, the length of the sealing element is L, and the depth of the racetrack-shaped valve seat air hole 4 is H, where L is H +0.2mm, the upper portion and the lower portion of the sealing element are respectively in plug-in fit with the racetrack-shaped valve body air hole 3 and the racetrack-shaped valve seat air hole 4, and the solenoid valve body 1 applies force to the valve seat 2 by the force of screw installation, so that the sealing element can be effectively connected.
The center line of the sealing element in the length direction coincides with the center line of the racetrack-shaped valve seat air hole 4 in the length direction. As shown in fig. 7, the vertical distance between the point on the edge of the sealing member on one side of the center line and the center line is P1, and the vertical distance between the point on the edge of the racetrack-shaped valve seat air hole 4 on the same side of the center line and the center line is P2, wherein P1 is P2+0.1 mm. The central line of the sealing element in the length direction is superposed with the central line of the runway-shaped valve body air hole 3 in the length direction; the vertical distance between the point on one side of the center line on the edge of the sealing member and the center line is P1, and the vertical distance between the point on the same side of the center line on the edge of the gas hole 3 of the racetrack-shaped valve body and the center line is P3, wherein P1 is P3+0.05 mm. Fig. 7 shows that: the cross section of the joint between the solenoid valve body 1 and the valve seat 2 is located after the solenoid valve body 1, the sealing element and the valve seat 2 are installed in a matched mode, and the diagram is a split schematic diagram of the runway-shaped valve body air hole 3, the sealing element and the runway-shaped valve seat air hole 4 on the cross section.
The working principle is as follows: it is known that the failure of the sealing effect of the valve island is the main cause of gas leakage in a low-temperature environment of-41 ℃, and the failure of the sealing effect is caused by the shrinkage of the sealing member. Theoretically, the problem of air leakage in the low-temperature environment of-41 ℃ can be solved by replacing the sealing ring capable of resisting low temperature, and experimental demonstration shows that the air leakage condition can still occur by only changing the sealing material, and only the air leakage degree and the air leakage probability are less than those of the conventional sealing ring. When the sealing element shrinks under the low-temperature environment of-41 ℃, an opposite repulsive force is generated due to the structure of the sealing element. The runway-shaped sealing element has smaller shrinkage degree at the low temperature of-41 ℃ due to the self structure, the specification of the corresponding runway-shaped valve seat air hole 4 is smaller than that of the sealing element by 0.1mm, the sealing element can be embedded by applying external force, and the shrinkage degree of the sealing element at the low temperature of-41 ℃ is reduced by the tolerance design. On the other hand, the top surface of the high valve seat 2 at one side where the sealing element and the solenoid valve body 1 are installed is 0.2mm, and the value is within the contraction range under the low-temperature environment of minus 41 ℃, so that when the solenoid valve body 1 is fixed on the valve seat 2, excellent and effective sealing performance can be still kept under the low-temperature environment of minus 41 ℃, and the problem of gas leakage is avoided. Meanwhile, through the structural design of the runway-shaped valve seat air hole 4 and the runway-shaped valve body air hole 3, the size of the air hole is increased under the condition that the whole volume of the valve island is not changed, the utilization rate of the mounting surface is increased, and the increase of the gas flow in and out of the valve island is further ensured.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (5)
1. A novel low-temperature-resistant large-flow valve island is characterized by comprising a solenoid valve body (1) and a valve seat (2);
the bottom of the electromagnetic valve body (1) is provided with a plurality of runway-shaped valve body air holes (3), and the side part of the electromagnetic valve body (1) is provided with a valve body air hole (7) communicated with the runway-shaped valve body air holes (3);
the top of the valve seat (2) is provided with runway-shaped valve seat air holes (4) which are in one-to-one correspondence with the runway-shaped valve body air holes (3), and the side part of the valve seat (2) is provided with valve seat side air holes (5) which are in position correspondence with the runway-shaped valve seat air holes (4) and are communicated with the runway-shaped valve seat air holes (4);
the runway-shaped valve body air hole (3) is in sealing connection with the runway-shaped valve seat air hole (4) through a sealing element;
the electromagnetic valve is characterized in that the electromagnetic valve body (1) and the valve seat (2) are respectively provided with a plurality of threaded holes (6), and the electromagnetic valve body (1) and the valve seat (2) are in threaded fit with each other through the matching of screws and the threaded holes (6).
2. The novel valve island with low temperature resistance and high flow rate according to claim 1, wherein the length of the sealing element is L, the depth of the racetrack-shaped valve seat air hole (4) is H, wherein L is H +0.2mm, and the upper part and the lower part of the sealing element are respectively in plug fit with the racetrack-shaped valve body air hole (3) and the racetrack-shaped valve seat air hole (4).
3. The novel valve island resistant to low temperature and high flow rate according to claim 1, characterized in that the center line in the length direction of the sealing element is coincident with the center line in the length direction of the racetrack-shaped valve seat air hole (4); the vertical distance between the point on one side of the central line on the edge of the sealing element and the central line is P1, and the vertical distance between the point on the same side of the central line on the edge of the racetrack-shaped valve seat air hole (4) and the central line is P2, wherein P1 is P2+0.1 mm.
4. The novel valve island resistant to low temperature and high flow rate according to claim 1 or 3, characterized in that the center line in the length direction of the sealing element is coincident with the center line in the length direction of the racetrack-shaped valve body air hole (3); the vertical distance between the point on one side of the central line on the edge of the sealing element and the central line is P1, and the vertical distance between the point on the same side of the central line on the edge of the air hole (3) of the racetrack-shaped valve body and the central line is P3, wherein P1 is P3+0.05 mm.
5. The novel valve island resistant to low temperature and high flow rate of claim 1, characterized in that the bottom of the solenoid valve body (1) is provided with 5 racetrack-shaped valve body air holes (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123146567.4U CN216743050U (en) | 2021-12-14 | 2021-12-14 | Low-temperature-resistant large-flow novel valve terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123146567.4U CN216743050U (en) | 2021-12-14 | 2021-12-14 | Low-temperature-resistant large-flow novel valve terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216743050U true CN216743050U (en) | 2022-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123146567.4U Active CN216743050U (en) | 2021-12-14 | 2021-12-14 | Low-temperature-resistant large-flow novel valve terminal |
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| Country | Link |
|---|---|
| CN (1) | CN216743050U (en) |
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2021
- 2021-12-14 CN CN202123146567.4U patent/CN216743050U/en active Active
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