CN217153187U - Check valve frost crack prevention device for pipeline - Google Patents
Check valve frost crack prevention device for pipeline Download PDFInfo
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- CN217153187U CN217153187U CN202221641326.9U CN202221641326U CN217153187U CN 217153187 U CN217153187 U CN 217153187U CN 202221641326 U CN202221641326 U CN 202221641326U CN 217153187 U CN217153187 U CN 217153187U
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- pipe
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Abstract
The utility model discloses a check valve frost crack prevention device for pipeline, it belongs to valve body drainage field, including the check valve body, check valve body lateral wall is equipped with adjacent accuse water pipe and leading water pipe, and the accuse water pipe is close to the outer end and is equipped with accuse water cavity and through accuse water passageway and the inside intercommunication of check valve body, is equipped with accuse water piston in the accuse water cavity, and accuse water piston rod is connected to the water piston, and the leading water pipe is close to the outer end and is equipped with the leading water cavity and through leading water passageway and the inside intercommunication of check valve body, is equipped with the diversion piston in the diversion cavity, and diversion piston rod is connected to the diversion piston, and accuse water piston diameter is greater than diversion piston diameter. A supporting rod is arranged between the water control pipe and the water guide pipe, the end part of the supporting rod is connected with a lever, and the two ends of the lever are respectively connected with the end part of the water guide piston rod and the end part of the water control piston rod; one side of the water diversion pipe is provided with a water drainage pipe communicated with the water diversion cavity, an elastic structure is arranged in the water diversion pipe and is positioned at the bottom of the water diversion piston, and automatic water drainage of the valve body after the water pump stops water can be realized through the structure.
Description
Technical Field
The utility model relates to a valve body drainage field, concretely relates to check valve is prevented frostbite and is split device for pipeline.
Background
At present, a cooling water channel of the smelting equipment adopts a mode of using one water pump and using one water pump, namely once one water pump has a problem, the other water pump can be started immediately, so that the safety of the equipment can be ensured, the components are prevented from being damaged due to overheating, and the coil is prevented from being melted due to overheating to cause a large accident. The mode that the water pumps are connected in parallel is adopted in the emergency waterway for one use and one standby or for one use and one standby, in order to prevent water flow from forming a loop through other water pumps when one water pump runs, check valves are installed on outlet branches of the water pumps, are connected in series on the waterway and are mostly of a vertical structure. Normally, the equipment works normally without problems. However, when the device is left for a long time for stopping in winter, the water on the vertical pipeline cannot be discharged after the temperature is below 0 ℃ due to cold weather in winter, and the situation that the check valve and part of the pipeline are frost-cracked is caused. Causing troubles after operation, needing to replace the check valve, delaying the labor and causing loss.
To the problem that above-mentioned prior art exists, the utility model discloses a check valve frost crack prevention device for pipeline has been made, overcomes above-mentioned defect.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides a pair of check valve frost crack prevention device for pipeline can be automatic to the log raft in the vertical pipeline empty after the water pump stop work, prevents the emergence of the frost crack condition in winter, does not influence the normal operating of water pump during operation simultaneously.
In order to realize the purpose, the utility model discloses a technical scheme as follows: a check valve anti-freezing-cracking device for a pipeline comprises a check valve body, wherein the side wall of the check valve body is provided with a water control pipe and a water guide pipe which are adjacent, a water control channel is arranged in the water control pipe and is communicated with the inside of the check valve body, and a water guide channel is arranged in the water guide pipe and is communicated with the inside of the check valve body;
the water diversion device is characterized in that a water control cavity is arranged in the water control pipe and close to the outer end, the water control cavity is communicated with the interior of the check valve body through a water control channel, a water control piston is arranged in the water control cavity, the water control piston is connected with a water control piston rod, the water control piston rod extends out of the water control pipe, a water diversion cavity is arranged in the water diversion pipe and close to the outer end, the water diversion cavity is communicated with the interior of the check valve body through a water diversion channel, a water diversion piston is arranged in the water diversion cavity, the water diversion piston is connected with a water diversion piston rod, the water diversion piston rod extends out of the water diversion pipe, and the diameter of the water control piston is larger than that of the water diversion piston.
A supporting rod is arranged between the water control pipe and the water guide pipe, the end part of the supporting rod is connected with a lever as a fulcrum, and the two ends of the lever are respectively connected with the end part of the water guide piston rod and the end part of the water control piston rod;
the water diversion piston is characterized in that a drain pipe is arranged on one side of the water diversion pipe and communicated with the water diversion cavity, an elastic structure is arranged in the water diversion pipe and located at the bottom of the water diversion piston, and the elastic structure has a tendency of enabling the water diversion piston to be far away from the water diversion pipe.
Preferably, the length of a power arm of the lever close to the water control piston is equal to the length of a resistance arm close to the water diversion piston, and the diameter of the water control piston is 2-3 times that of the water diversion piston.
Preferably, the two ends of the lever are provided with oblong holes, the end part of the water diversion piston rod and the end part of the water control piston rod are respectively provided with a connecting shaft, and the connecting shafts can be movably connected in the oblong holes.
Preferably, the diameter of the water control cavity is larger than that of the water control channel, and the diameter of the water diversion cavity is larger than that of the water diversion channel.
Preferably, when the water diversion piston is positioned at the bottom of the water diversion cavity, the water drainage pipe is not communicated with the water diversion channel.
Preferably, the distance between the water control pipe and the water conduit is smaller than the radius of the valve body of the check valve.
Preferably, the water control piston and the water guide piston are provided with sealing rings.
Preferably, the elastic structure is a compression spring.
Preferably, the check valve body is a disc check valve body, and the center line of the check valve body is perpendicular to the ground.
Preferably, the water control pipe and the water guide pipe are arranged above the valve plate inside the check valve body.
The utility model discloses an useful part lies in:
the utility model discloses with the help of diversion piston and the accuse water piston of two different diameters, combine the pressure intensity relation, when the water pump provides water pressure, guarantee that accuse water piston pressure is greater than diversion piston pressure, and pressure differential between them is greater than elastic construction's elastic force, combine lever structure, make the diversion piston be located diversion chamber bottom, the drain pipe does not communicate with the diversion passageway, and when the water pump stop work, when needing to discharge the water in the check valve, because accuse water piston, there is not water pressure at diversion piston both ends, consequently under elastic construction elastic force, make the diversion piston be located diversion chamber outer end, thereby the drain pipe realizes automatic drainage with diversion passageway intercommunication.
Drawings
FIG. 1 is a schematic structural view of a check valve anti-freeze apparatus for a pipeline;
fig. 2 is a partial position sectional view of the present invention.
In the figure: 1-check valve body, 2-water control pipe, 3-water guide pipe, 4-support rod, 5-lever, 6-water guide piston, 7-water control piston, 8-water guide channel, 9-water control channel, 10-water control cavity, 11-water guide cavity, 12-water discharge pipe and 13-elastic structure.
Detailed Description
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, fig. 2, a check valve frost crack prevention device for pipeline, including check valve body 1, check valve body 1 is preferred to be established to the valve body of dish formula check valve, 1 central line perpendicular to ground of check valve body, 1 lateral wall of check valve body is equipped with adjacent accuse water pipe 2 and leading water pipe 3, accuse water pipe 2 and leading water pipe 3 set up in 1 inside valve plate top of check valve body, the preferred radius that is less than check valve body 1 of distance between accuse water pipe 2 and the leading water pipe 3, be equipped with accuse water passageway 9 and the inside intercommunication of check valve body 1 in the accuse water pipe 2, be equipped with leading water passageway 8 and the inside intercommunication of check valve body 1 in the leading water pipe 3.
The utility model is characterized in that a water control cavity 10 is arranged in the water control pipe 2 near the outer end, the diameter of the water control cavity 10 is larger than the diameter of a water control channel 9, the water control cavity 10 is communicated with the inner part of a check valve body 1 through the water control channel 9, a water control piston 7 is arranged in the water control cavity 10, the water control piston 7 is connected with a water control piston rod, the water control piston rod extends out of the water control pipe 2, a water diversion cavity 11 is arranged in the water diversion pipe 3 near the outer end, the diameter of the water diversion cavity 11 is larger than the diameter of a water diversion channel 8, the water diversion cavity 11 is communicated with the inner part of the check valve body 1 through the water diversion channel 8, a water diversion piston 6 is arranged in the water diversion cavity 11, the water diversion piston 6 is connected with a water diversion piston rod, the water diversion piston rod extends out of the water diversion pipe 3, the diameter of the water control piston 7 is larger than the diameter of the water diversion piston 6, the diameter of the water control piston 7 is preferably 2-3 times of the diameter of the water diversion piston 6, sealing rings are preferably arranged on the water control piston 7 and the water diversion piston 6, when the water pump provides water pressure, the pressure born by the water control piston 7 is greater than the pressure born by the water diversion piston 6 by combining the relation between the pressure intensity and the stress area.
A supporting rod 4 is arranged between the water control pipe 2 and the water guide pipe 3, the end part of the supporting rod 4 is connected with a lever 5 as a pivot, and the two ends of the lever 5 are respectively connected with the end part of the water guide piston rod and the end part of the water control piston rod, so that the linkage of the water control piston 7 and the water guide piston 6 is realized, the two ends of the lever 5 are preferably arranged into oblong holes, the end part of the water guide piston rod and the end part of the water control piston rod are respectively provided with a connecting shaft, and the connecting shafts can be movably connected in the oblong holes.
The utility model discloses 3 one sides of leading water pipe are equipped with drain pipe 12, and drain pipe 12 and diversion chamber 11 communicate, are equipped with elastic construction 13 in leading water pipe 3, and elastic construction 13 is preferred to be used compression spring, and elastic construction 13 is located leading water piston 6 bottom, and elastic construction 13 has the trend that makes leading water piston 6 keep away from leading water pipe 3, and when leading water piston 6 was located diversion chamber 11 bottom, drain pipe 12 and diversion passageway 8 do not communicate.
The utility model discloses a diversion piston 6 and accuse water piston 7 with the help of two different diameters, combine the relation of pressure and lifting surface area, when the water pump provides water pressure, guarantee that accuse water piston 7 pressure is greater than diversion piston 6 pressure, and pressure differential between them is greater than elastic force of elastic construction 13, combine lever 5 structure, make diversion piston 6 be located diversion chamber 11 bottom, drain pipe 12 does not communicate with diversion passageway 8, and when the water pump stop work, when needing to discharge the water in the check valve, because accuse water piston 7, there is not water pressure at diversion piston 6 both ends, consequently, under the elastic construction 13 elastic force effect, make diversion piston 6 be located diversion chamber 11 outer ends, thereby drain pipe 12 communicates with diversion passageway 8 and realizes automatic drainage.
The utility model discloses the arm of force at 5 both ends of lever adopts the same structure of length, and water control piston 7 diameter is greater than diversion piston 6 diameter, thereby guaranteed that water control piston 7 pressure is greater than diversion piston 6 pressure, and pressure differential between them is greater than elastic construction 13's elastic force, of course, technical personnel in the field also can do the relevance and revise, through the length of revising two arm of force at lever both ends, water control piston 7 diameter can equal to diversion piston 6 diameter even, as long as satisfy the poor elastic construction 13 that is greater than elastic construction 13 of the power of force between two arms of force at 5 both ends of lever can.
It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes, modifications and/or alterations to the present invention may be made by those skilled in the art after reading the technical disclosure of the present invention, and all such equivalents may fall within the scope of the present invention as defined by the appended claims.
Claims (10)
1. The anti-frost-crack device for the check valve for the pipeline is characterized by comprising a check valve body, wherein the side wall of the check valve body is provided with a water control pipe and a water guide pipe which are adjacent to each other, a water control channel is arranged in the water control pipe and is communicated with the inside of the check valve body, and a water guide channel is arranged in the water guide pipe and is communicated with the inside of the check valve body;
a water control cavity is arranged in the water control pipe and is communicated with the interior of the check valve body through a water control channel, a water control piston is arranged in the water control cavity and is connected with a water control piston rod, the water control piston rod extends out of the water control pipe, a water diversion cavity is arranged in the water diversion pipe and is communicated with the interior of the check valve body through a water diversion channel, a water diversion piston is arranged in the water diversion cavity and is connected with a water diversion piston rod, the water diversion piston rod extends out of the water diversion pipe, and the diameter of the water control piston is larger than that of the water diversion piston;
a supporting rod is arranged between the water control pipe and the water guide pipe, the end part of the supporting rod is connected with a lever as a fulcrum, and the two ends of the lever are respectively connected with the end part of the water guide piston rod and the end part of the water control piston rod;
the water diversion piston is characterized in that a drain pipe is arranged on one side of the water diversion pipe and communicated with the water diversion cavity, an elastic structure is arranged in the water diversion pipe and located at the bottom of the water diversion piston, and the elastic structure has a tendency of enabling the water diversion piston to be far away from the water diversion pipe.
2. The frost crack prevention device for check valves of pipeline as claimed in claim 1, wherein the length of the power arm of the lever near the water control piston is equal to the length of the resistance arm near the water diversion piston, and the diameter of the water control piston is 2-3 times larger than that of the water diversion piston.
3. The frost crack prevention device for the check valve of the pipeline as claimed in claim 1, wherein the lever is provided with an elongated hole at both ends thereof, the end of the water diversion piston rod and the end of the water control piston rod are provided with connecting shafts, and the connecting shafts are movably connected in the elongated hole.
4. The check valve frost crack prevention device for pipes of claim 1, wherein the diameter of the water control chamber is larger than the diameter of the water control channel, and the diameter of the water guide chamber is larger than the diameter of the water guide channel.
5. The check valve frost crack prevention device for pipes of claim 1, wherein when the priming piston is located at the bottom of the priming chamber, the drain pipe is not communicated with the priming channel.
6. The check valve frost crack prevention device for pipes of claim 1, wherein the distance between the water control pipe and the water conduit is smaller than the radius of the check valve body.
7. The check valve frost crack prevention device for pipelines of claim 1, wherein the water control piston and the water diversion piston are provided with sealing rings.
8. The check valve frost crack prevention device for pipes of claim 1, wherein the elastic structure is a compression spring.
9. The check valve frost crack prevention device for pipes of claim 1, wherein the check valve body is a disc check valve body, and a center line of the check valve body is perpendicular to the ground.
10. The check valve frost crack prevention device for pipes of claim 9, wherein the water control pipe and the water conduit are disposed above a valve plate inside the check valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221641326.9U CN217153187U (en) | 2022-06-29 | 2022-06-29 | Check valve frost crack prevention device for pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221641326.9U CN217153187U (en) | 2022-06-29 | 2022-06-29 | Check valve frost crack prevention device for pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217153187U true CN217153187U (en) | 2022-08-09 |
Family
ID=82669654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221641326.9U Active CN217153187U (en) | 2022-06-29 | 2022-06-29 | Check valve frost crack prevention device for pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217153187U (en) |
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2022
- 2022-06-29 CN CN202221641326.9U patent/CN217153187U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An anti freezing and cracking device for check valves used in pipelines Effective date of registration: 20230322 Granted publication date: 20220809 Pledgee: HIMILE GROUP Co.,Ltd. Pledgor: SHANDONG RONGTAI INDUCTION TECHNOLOGY Co.,Ltd. Registration number: Y2023980035464 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |