CN212297803U - Overvoltage protector of gas boiler - Google Patents
Overvoltage protector of gas boiler Download PDFInfo
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- CN212297803U CN212297803U CN202020583330.9U CN202020583330U CN212297803U CN 212297803 U CN212297803 U CN 212297803U CN 202020583330 U CN202020583330 U CN 202020583330U CN 212297803 U CN212297803 U CN 212297803U
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Abstract
The utility model relates to a gas boiler's overvoltage protector relates to feed production technical field, and the staff who solves among the prior art is longer from finding that gas boiler is excessive pressure to the time that personnel removed the site manipulation, influences product quality's technical problem. The technical characteristics are that the device comprises a protective cylinder, wherein the inner cavity of the protective cylinder is communicated with a pressure cavity of a gas boiler; the piston is in sliding fit with the inner cavity of the protection cylinder, and a sealing ring is arranged on the circumferential side of the piston; the piston rod is fixedly arranged at the end part of the piston; the compression spring is sleeved on the piston rod and arranged in the adjusting cavity, and two ends of the compression spring are respectively attached to the upper surface of the piston and the lower end surface of the spring adjusting device; the exhaust port is arranged on one side of the protective cylinder and communicated with the external atmosphere; wherein, spring adjusting device and protection section of thick bamboo threaded connection. The method has the advantages that workers do not need to go to the site for treatment, the treatment time is saved, and the product quality of feed production is guaranteed.
Description
Technical Field
The utility model relates to a feed production technical field, in particular to gas boiler's overvoltage protector.
Background
The boiler is a special equipment for heating and providing industrial use. In the aspect of household heating, two types of hot water and steam are mainly provided, such as household hot water and bath water. The industry has primarily provided steam to provide refrigeration, power, and other services to other equipment, such as ships, locomotives, mines, and the like. The working principle of the boiler is complex, and the boiler mainly comprises a fuel system, a smoke and air system, a steam and water system and the like. The operating principle of different types of boilers is also different. The following 3 types can be classified according to the object size of heating and service: the household boiler mainly comprises an electric boiler (electric water boiler), a small gas boiler, a wall-mounted boiler and the like; the central heating boilers of communities, hospitals, companies and the like mainly comprise gas boilers and steam boilers; the large-scale heating unit comprises a coal-fired boiler, an oil-fired boiler, a gas-fired boiler, a steam boiler and the like. In the feed production, the gas boiler provides temperature guarantee for the production of the feed.
In the prior art, once the gas boiler is over-pressurized, an alarm is given, after a person in a control room finds that the pressure is required to be relieved on site, the time from finding to the on-site treatment of the person is long, the quality of feed is adversely affected, and the product quality is affected.
SUMMERY OF THE UTILITY MODEL
The utility model discloses solve the staff among the prior art and remove the time ratio of field treatment from finding gas boiler excessive pressure to personnel longer, produce adverse effect to the quality of fodder, influence product quality's technical problem, provide a gas boiler's overvoltage protector.
In order to solve the technical problem, the technical scheme of the utility model is specifically as follows:
an overvoltage protection device for a gas boiler, comprising:
the protection cylinder is fixedly and hermetically connected with the surface of the gas boiler through a flange below the protection cylinder, and the inner cavity of the protection cylinder is communicated with the pressure cavity of the gas boiler;
the piston is in sliding fit with the inner cavity of the protection cylinder, the inner cavity of the protection cylinder is divided into a pressure cavity and an adjusting cavity by the piston, the pressure cavity of the protection cylinder is communicated with the pressure cavity of the gas boiler, and a sealing ring is arranged on the circumferential side of the piston;
the piston rod is fixedly arranged at the end part of the piston;
the compression spring is sleeved on the piston rod and arranged in the adjusting cavity, and two ends of the compression spring are respectively attached to the upper surface of the piston and the lower end surface of the spring adjusting device;
the exhaust port is arranged on one side of the protective cylinder and communicated with the external atmosphere and the adjusting cavity;
wherein, spring adjusting device and protection section of thick bamboo threaded connection.
Furthermore, a blocking surface is arranged above the adjusting cavity of the protective cylinder, and an internal thread is arranged above the blocking surface.
Further, the spring adjusting device includes:
the center of the pressing plate is provided with a through hole, the through hole of the pressing plate is in sliding fit with the piston rod, the pressing plate is arranged in the adjusting cavity, the pressing plate is in sliding fit with the adjusting cavity, and the lower surface of the pressing plate is attached to the upper end of the compression spring;
and the circumference side of the pressing cylinder is provided with external threads, the pressing cylinder is in threaded fit with the upper part of the blocking surface, and the bottom surface of the pressing cylinder is attached to the upper surface of the pressing plate.
Furthermore, the upper end surface of the pressing cylinder is provided with a power assisting hole.
Furthermore, the inner side edge of the exhaust port is provided with an arc for preventing a sealing ring on the piston from being scratched.
The utility model discloses following beneficial effect has:
the utility model discloses an overvoltage protector of gas boiler, through setting up compression spring, compression spring produces pressure to the piston, and can guarantee that the pressure in the gas boiler keeps balance with compression spring's spring force, once gas boiler's pressure is too big to exceed the setting value, will destroy this equilibrant, the piston moves upwards, and compress compression spring, make gas vent and gas boiler inside intercommunication release pressure, until compression spring presses the piston to the gas vent, guaranteed that gas boiler's internal pressure is within the setting value, once excessive pressure, can directly release pressure, the staff need not arrive the site handling, the time of having practiced thrift the processing, the product quality of fodder production has been guaranteed; through setting up spring adjusting device, can adjust compression spring to the pressure of piston, make compression spring can adapt to different pressure ranges.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of an overvoltage protection device of a gas boiler according to the present invention.
The reference numerals in the figures denote:
1. a protective cylinder; 2. a piston; 3. an exhaust port; 4. a compression spring; 5. pressing a plate; 6. a piston rod; 7. pressing the cylinder; 8. a booster hole; 9. a blocking surface; 10. an adjustment chamber; 11. the pressure chamber.
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.
Referring to fig. 1, an overvoltage protector for a gas boiler includes:
the protection device comprises a protection cylinder 1, wherein the protection cylinder 1 is fixedly and hermetically connected with the surface of the gas boiler through a flange below the protection cylinder 1, and an inner cavity of the protection cylinder 1 is communicated with a pressure cavity of the gas boiler;
the piston 2 is in sliding fit with the inner cavity of the protection cylinder 1, the piston 2 divides the inner cavity of the protection cylinder 1 into a pressure cavity 11 and an adjusting cavity 10, the pressure cavity 11 of the protection cylinder 1 is communicated with the pressure cavity of the gas boiler, and a sealing ring is arranged on the circumferential side of the piston 2;
the piston rod 6 is fixedly arranged at the end part of the piston 2;
the compression spring 4 is sleeved on the piston rod 6 and arranged in the adjusting cavity 10, and two ends of the compression spring 4 are respectively attached to the upper surface of the piston 2 and the lower end surface of the spring adjusting device;
the exhaust port 3 is arranged on one side of the protective cylinder 1 and communicated with the external atmosphere and the adjusting cavity 10;
wherein, the spring adjusting device is in threaded connection with the protective cylinder 1.
The working principle is as follows: the device is arranged on the surface of a gas boiler, a pressure cavity 11 of a protection cylinder 1 is communicated with the pressure cavity of the gas boiler, when the gas boiler generates pressure, a piston 2 is positioned and a compression spring 4 is compressed, at the moment, the pressure cavity 11 and an adjusting cavity 10 are formed in the protection cylinder 1 until the pressure in the gas boiler is balanced with the spring force generated by the compression spring 4 to the piston 2, the piston 2 keeps the position still, if the pressure in the gas boiler is increased, the pressure is applied to the lower surface of the piston 2 through the pressure cavity 11, the piston 2 continues to move upwards and compress the compression spring 4 until an exhaust port 3 is communicated with the pressure cavity 11, the pressure in the gas boiler is exhausted through the exhaust port 3, the pressure in the gas boiler is reduced, meanwhile, the compression spring 4 continuously applies pressure to the piston 2, so that the piston 2 moves downwards until the piston 2 is positioned below the exhaust port 3, the purpose of releasing the pressure of the gas boiler is achieved, meanwhile, the balance between the pressure in the gas boiler and the spring force generated by the compression spring 4 to the piston 2 is ensured, the pressure in the gas boiler is in a set value, once the pressure is over-pressed, the pressure can be directly released, workers do not need to go to the site for processing, the processing time is saved, and the product quality of feed production is ensured; at the initial stage of setting the pressure of the gas boiler, aiming at different pressure requirements of the gas boiler, the spring force of the compression spring 4 needs to be adjusted, namely the pressure of the compression spring 4 to the piston 2 is adjusted, the spring force of the compression spring 4 can be adjusted through the spring adjusting device, so that the spring force of the compression spring 4 to the piston 2 and the pressure in the gas boiler are balanced, and once overpressure occurs, redundant pressure can be released immediately.
A blocking surface 9 is arranged above an adjusting cavity 10 of the protective barrel 1, and internal threads are arranged above the blocking surface 9.
The spring adjusting device includes:
the center of the pressing plate 5 is provided with a through hole, the through hole of the pressing plate 5 is in sliding fit with the piston rod 6, the pressing plate 5 is arranged in the adjusting cavity 10, the pressing plate 5 is in sliding fit with the adjusting cavity 10, and the lower surface of the pressing plate 5 is attached to the upper end of the compression spring 4;
the pressing cylinder 7 is provided with external threads on the circumferential side of the pressing cylinder 7, the pressing cylinder 7 is in threaded fit with the upper part of the blocking surface 9, and the bottom surface of the pressing cylinder 7 is attached to the upper surface of the pressing plate 5.
The working principle is as follows: the pressure of the pressure plate 5 on the compression spring 4 can be adjusted by adjusting the pressure cylinder 7, namely, the pretightening force of the pressure plug spring 4 is adjusted, specifically, the pressure cylinder 7 is rotated clockwise, the pressure cylinder 7 moves downwards, so that the pressure plate 5 moves downwards, the pressure plate 5 compresses the compression spring 4, the pretightening force of the compression spring 4, namely the spring force is increased, in this time, the acting force of the compression spring 4 on the piston 2 is also increased, so that the compression spring 4 can bear larger pressure generated by a gas boiler; the pressing cylinder 7 is rotated clockwise, the pressing cylinder 7 moves upwards, and then the pressing plate 5 can move upwards by the compression spring 4, so that the pretightening force, namely the spring force, of the compression spring 4 is reduced, at this time, the acting force of the compression spring 4 on the piston 2 is reduced, and the compression spring 4 can bear smaller pressure generated by the gas boiler, namely, the compression spring 4 can adapt to different pressures from the gas boiler through the spring adjusting device; simultaneously, the center department of clamp plate 5 is equipped with the through-hole, the through-hole and the piston rod 6 sliding fit of clamp plate 5, clamp plate 5 produces the holding power to piston rod 6, piston 2 and piston rod 6 fixed connection in addition, two points support piston rod 6, piston 2 is in the up-and-down motion like this, just can not have the phenomenon of slope, better reach sealed effect, stop face 9 through setting up, can restrict the action distance of clamp plate 5, make clamp plate 5 to compression spring 4 continuous effort, it has the spring force to have the tamponade spring 4 constantly promptly to have guaranteed.
The upper end surface of the pressing cylinder 7 is provided with a power assisting hole 8.
The working principle is as follows: through inserting a tool such as an iron rod into the main force hole 8, the pressing cylinder 7 is rotated, operation of an operator can be facilitated, and meanwhile, the pressing cylinder 7 is made to be vertically through in order to observe a specific position of the piston rod 7.
The edge of the inner side of the exhaust port 3 is provided with an arc for preventing a sealing ring on the piston 2 from being scratched.
The working principle is as follows: piston 2 is in the below of gas vent 3 at ordinary times, in case gas boiler's pressure is too big, piston 2 will shift up, and the sealing washer on the piston 2 will produce the relative slip with the inboard of gas vent 2, and through setting up the circular arc, the sealing washer just so can not produce the injury to the sealing washer with circular arc smooth sliding, has guaranteed that piston 2 can carry out effective seal to the pressure in the gas boiler.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (5)
1. An overvoltage protection device for a gas boiler, comprising:
the device comprises a protection cylinder (1), wherein the protection cylinder (1) is fixedly and hermetically connected with the surface of the gas boiler through a flange below the protection cylinder (1), and an inner cavity of the protection cylinder (1) is communicated with a pressure cavity of the gas boiler;
the piston (2) is in sliding fit with the inner cavity of the protection cylinder (1), the inner cavity of the protection cylinder (1) is divided into a pressure cavity (11) and an adjusting cavity (10) by the piston (2), the pressure cavity (11) of the protection cylinder (1) is communicated with the pressure cavity of the gas boiler, and a sealing ring is arranged on the circumferential side of the piston (2);
the piston rod (6), the said piston rod (6) is set up in the end of the piston (2) fixedly;
the compression spring (4) is sleeved on the piston rod (6) and arranged in the adjusting cavity (10), and two ends of the compression spring (4) are respectively attached to the upper surface of the piston (2) and the lower end surface of the spring adjusting device;
the exhaust port (3) is arranged on one side of the protective cylinder (1) and communicated with the external atmosphere and the adjusting cavity (10);
wherein, the spring adjusting device is in threaded connection with the protective cylinder (1).
2. Overpressure protection device for a gas boiler as claimed in claim 1, characterized in that a blocking surface (9) is provided above the regulating cavity (10) of said protection cartridge (1), and that an internal thread is provided above said blocking surface (9).
3. An overpressure protection apparatus for a gas boiler as set forth in claim 2, wherein said spring adjusting means includes:
the center of the pressing plate (5) is provided with a through hole, the through hole of the pressing plate (5) is in sliding fit with the piston rod (6), the pressing plate (5) is arranged in the adjusting cavity (10), the pressing plate (5) is in sliding fit with the adjusting cavity (10), and the lower surface of the pressing plate (5) is attached to the upper end of the compression spring (4);
the pressing cylinder (7) is provided with an external thread on the circumferential side of the pressing cylinder (7), the pressing cylinder (7) is in threaded fit with the upper side of the blocking surface (9), and the bottom surface of the pressing cylinder (7) is attached to the upper surface of the pressing plate (5).
4. An overpressure protection arrangement in a gas boiler as claimed in claim 3, characterized in that the upper end surface of said pressure cylinder (7) is provided with a booster hole (8).
5. An overpressure protection arrangement in a gas boiler as claimed in claim 1, characterized in that the inner edge of the exhaust port (3) is provided with a circular arc preventing the sealing ring on the piston (2) from being scratched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020583330.9U CN212297803U (en) | 2020-04-17 | 2020-04-17 | Overvoltage protector of gas boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020583330.9U CN212297803U (en) | 2020-04-17 | 2020-04-17 | Overvoltage protector of gas boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212297803U true CN212297803U (en) | 2021-01-05 |
Family
ID=73974617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020583330.9U Expired - Fee Related CN212297803U (en) | 2020-04-17 | 2020-04-17 | Overvoltage protector of gas boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212297803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113579780A (en) * | 2021-09-14 | 2021-11-02 | 安徽信息工程学院 | Mechanical adjustable clamp for drilling flexible part |
-
2020
- 2020-04-17 CN CN202020583330.9U patent/CN212297803U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113579780A (en) * | 2021-09-14 | 2021-11-02 | 安徽信息工程学院 | Mechanical adjustable clamp for drilling flexible part |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210105 Termination date: 20210417 |
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| CF01 | Termination of patent right due to non-payment of annual fee |