CN216384149U

CN216384149U - Temperature and pressure reducing device for boiler

Info

Publication number: CN216384149U
Application number: CN202122565908.5U
Authority: CN
Inventors: 秦忠妹
Original assignee: Jiangsu Jieyi Industrial Equipment Co ltd
Current assignee: Jiangsu Jieyi Industrial Equipment Co ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-04-26
Anticipated expiration: 2031-10-25

Abstract

The utility model discloses a temperature and pressure reducing device for a boiler, which comprises a first pipeline, a pressure reducing device and a temperature reducing pipeline, wherein one end of the temperature reducing pipeline is fixedly provided with a connecting end, one end of the temperature reducing pipeline, which is far away from the connecting end, is provided with a steam outlet, the first pipeline is detachably connected with the pressure reducing device, and the pressure reducing device is detachably connected with the connecting end. The utility model discloses a temperature and pressure reducing device for a boiler, which is convenient to mount and dismount, can be quickly assembled for use, can effectively filter impurities in high-temperature steam, prevents the damage to the interior of the temperature and pressure reducing device, can reduce steam diffusing into air to a certain extent, reduces the humidity of a working environment, slows down the corrosion of equipment, effectively prolongs the service life of the equipment, effectively prevents the condition that the equipment is damaged due to incomplete temperature and pressure reduction, and is safer to use.

Description

Temperature and pressure reducing device for boiler

Technical Field

The utility model relates to the technical field of temperature and pressure reduction devices, in particular to a temperature and pressure reduction device for a boiler.

Background

The temperature and pressure reducing device is a steam heat energy parameter conversion device and an energy-saving device utilizing waste heat, which are widely applied in heat energy engineering in enterprises of cogeneration, central heating, light industry, electric power, chemical industry, textile and the like in modern industry, and combines a temperature reducing system and a pressure reducing system into a whole, so that the overall dimension of the device is reduced, the technical complexity is increased, and through the device, the steam parameters provided by a user are reduced to the temperature and the pressure which are suitable for the user, so as to meet the requirements of the user, fully save heat energy and reasonably use heat energy.

With the rapid development of modern large boilers, the unit enters a new period of large-capacity, high-parameter, diversified and highly automatic development, the industrial fields of coal chemical industry, coal oil production and the like need to utilize a temperature and pressure reducing device which is quickly opened and closed and used for high-capacity and high-parameter boiler steam to meet the requirements of a process system, and the traditional high-temperature and high-pressure temperature and pressure reducing device cannot meet the requirements of the process system due to slow opening and closing, high noise, large vibration and poor safety and reliability.

The utility model discloses a boiler temperature and pressure reducing device (with the publication number of CN202852788U), which comprises a boiler and a steam main pipe connected with the boiler, wherein a temperature and pressure reducing device connecting pipe is connected on the steam main pipe, and the other end of the temperature and pressure reducing device connecting pipe is connected with a temperature and pressure reducing device. However, the device has a simple structure and a poor temperature and pressure reducing effect, and cannot meet the requirements of large-capacity, high-parameter, diversified and highly-automatic equipment for use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a temperature and pressure reducing device for a boiler.

In order to achieve the purpose, the utility model adopts the following technical scheme: a temperature and pressure reducing device for a boiler comprises a first pipeline, a pressure reducing device and a temperature reducing pipeline, wherein one end of the temperature reducing pipeline is fixedly provided with a connecting end, one end of the temperature reducing pipeline, which is far away from the connecting end, is provided with a steam outlet, the first pipeline is detachably connected with the pressure reducing device, and the pressure reducing device is detachably connected with the connecting end;

a temperature reducing device is fixedly arranged at one end of the temperature reducing pipeline close to the connecting end, a water conveying pipe is fixedly connected onto the temperature reducing device, a check valve, a water supply regulating valve, a throttle valve and a stop valve are sequentially arranged at one end of the water conveying pipe far away from the temperature reducing device, a safety valve is fixedly arranged in the middle of the upper end of the temperature reducing pipeline, and a pressure gauge and a thermometer are fixedly arranged at one end of the temperature reducing pipeline far away from the temperature reducing device;

the inside fixed spacing seat that is provided with of pressure relief device lower extreme, the equal fixed guide rail that is provided with of lower extreme on the spacing seat, two slide on the guide rail and be provided with the retainer plate, the inside fixed filter screen that is provided with of retainer plate, the inside activity kelly that all slides of lower extreme is provided with, two on the retainer plate the equal fixedly connected with tensioning spring in activity kelly rear end.

As a further description of the above technical solution:

the inside fixed two mounting brackets that are provided with of pipeline that reduces temperature, two fixedly connected with installation pole between the mounting bracket, it is provided with a plurality of flabellums to rotate on the installation pole.

As a further description of the above technical solution:

and the end part of the first pipeline, the two end parts of the pressure reducing device and the end part of the connecting end are fixedly connected with threaded connecting flange plates.

As a further description of the above technical solution:

the outer wall of each of two ends of the pressure reducing device is sleeved with a first threaded connecting sleeve, the end part of the first pipeline and the end part of the connecting end are fixedly provided with limiting rings, and the end part of the first pipeline and the end part of the connecting end are movably sleeved with second threaded connecting sleeves.

As a further description of the above technical solution:

and a pressure gauge is fixedly arranged at the lower end of the pressure reducing device.

As a further description of the above technical solution:

and the safety valve is fixedly connected with a steam pipeline.

As a further description of the above technical solution:

two fixed clamping grooves are fixedly formed in the inner wall of the lower end of the pressure reducing device, close to the limiting seat, and the movable clamping rods are clamped with the four fixed clamping grooves respectively.

As a further description of the above technical solution:

the rear ends of the two movable clamping rods on the fixed ring frame are fixedly connected with stainless steel pull ropes, and one ends of the stainless steel pull ropes far away from the movable clamping rods are fixedly connected with pull strips.

The utility model has the following beneficial effects:

1. according to the temperature and pressure reducing device for the boiler, the safety valve is arranged on the temperature reducing pipeline, when the pressure value of secondary steam subjected to temperature and pressure reduction is measured to be still higher than a set value, the safety valve can be opened, redundant steam enters the steam pipeline through the safety valve, the steam pipeline is connected with the air cooler, the air cooler can preliminarily reduce the temperature of the redundant steam, the redundant steam is liquefied into water after being subjected to temperature reduction treatment and flows out of the water outlet, the steam diffusing into air is reduced to a certain degree, the humidity of a working environment is reduced, the corrosion of equipment is slowed down, and the service life of the equipment is effectively prolonged.

2. According to the temperature and pressure reducing device for the boiler, the mounting frame and the mounting rod are arranged in the temperature reducing pipeline, the plurality of fan blades are arranged on the mounting and mounting rod, after the high-temperature steam and the temperature reducing water are preliminarily mixed, the mixed steam and the atomized temperature reducing water continuously impact the fan blades when flowing, so that the plurality of fan blades rotate at a high speed, the rotating fan blades can fully mix the high-temperature steam and the atomized temperature reducing water, the high-temperature steam is quickly cooled, the cooling effect is better, the working efficiency of equipment is further improved at a higher speed, and the use cost is saved.

3. According to the temperature and pressure reducing device for the boiler, the threaded connecting flange plate is arranged at the connecting position of the first pipeline, the pressure reducing device and the temperature reducing pipeline, the first threaded connecting sleeve and the second threaded connecting sleeve are arranged outside the connecting pipeline, the pipelines are detachably connected by adopting the two threaded connecting sleeves, the pipelines are convenient to mount and dismount, the connecting strength is higher, the threaded sleeves are connected oppositely, the threaded sleeves can be prevented from loosening and falling off, and the mounting and connecting effects are better.

4. According to the temperature and pressure reducing device for the boiler, the detachable filter screen is arranged at the front end inside the pressure reducing device, the filter screen is positioned and installed through the guide rail, the filter screen is installed more quickly and accurately, the filter screen is convenient to take out, the stainless steel pull rope is driven to pull outwards through the pull handle, the sliding clamping rod is pulled out from the inside of the fixing clamping groove, the fixing ring frame can be unlocked, then the filter screen is taken out, the filter screen is convenient to take out, clean and replace, and the labor intensity of workers is reduced.

Drawings

FIG. 1 is a front view of a boiler desuperheating and depressurizing device provided by the utility model;

FIG. 2 is a front sectional view of a boiler desuperheating and depressurizing device provided by the utility model;

FIG. 3 is a schematic view of a connection structure of a pressure reducing device of a boiler temperature and pressure reducing device according to the present invention;

FIG. 4 is a schematic view of a detachable joint of a temperature and pressure reducing device for a boiler according to the present invention;

fig. 5 is an enlarged view of a portion a in fig. 3.

Illustration of the drawings:

1. a first conduit; 2. a pressure reducing device; 201. a pressure gauge; 3. a desuperheating pipeline; 301. connecting the end heads; 302. a steam outlet; 4. a temperature reducing device; 5. a safety valve; 51. a steam line; 6. a pressure gauge; 7. a thermometer; 8. a water delivery pipe; 9. a check valve; 10. a feed water regulating valve; 11. a throttle valve; 12. a stop valve; 13. the flange plate is connected by screw threads; 14. a first threaded connection sleeve; 15. a limiting ring; 16. a second threaded connecting sleeve; 17. a mounting frame; 18. mounting a rod; 19. a fan blade; 20. a guide rail; 21. a limiting seat; 22. fixing the clamping groove; 23. fixing a ring frame; 24. a filter screen; 25. a movable clamping rod; 26. tensioning the spring; 27. a stainless steel pull rope; 28. a brace.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, one embodiment of the present invention is provided: a temperature and pressure reducing device for a boiler comprises a first pipeline 1, a pressure reducing device 2 and a temperature reducing pipeline 3, wherein one end of the temperature reducing pipeline 3 is fixedly provided with a connecting end 301, one end of the temperature reducing pipeline 3, which is far away from the connecting end 301, is provided with a steam outlet 302, the first pipeline 1 is detachably connected with the pressure reducing device 2, and the pressure reducing device 2 is detachably connected with the connecting end 301;

a temperature reduction device 4 is fixedly arranged at one end of the temperature reduction pipeline 3 close to the connecting end 301, a water delivery pipe 8 is fixedly connected to the temperature reduction device 4, a check valve 9, a water supply regulating valve 10, a throttle valve 11 and a stop valve 12 are sequentially arranged at one end of the water delivery pipe 8 far away from the temperature reduction device 4, a safety valve 5 is fixedly arranged in the middle of the upper end of the temperature reduction pipeline 3, and a pressure gauge 6 and a thermometer 7 are fixedly arranged at one end of the temperature reduction pipeline 3 far away from the temperature reduction device 4;

the inside fixed spacing seat 21 that is provided with of 2 lower extremes of pressure relief device, the equal fixed guide rail 20 that is provided with of lower extreme on spacing seat 21, the sliding is provided with retainer plate 23 on two guide rails 20, the inside fixed filter screen 24 that is provided with of retainer plate 23, and the inside equal sliding of lower extreme is provided with movable kelly 25 on retainer plate 23, the equal fixedly connected with tensioning spring 26 in two activity kellies 25 rear ends.

Two mounting frames 17 are fixedly arranged in the temperature-reducing pipeline 3, a mounting rod 18 is fixedly connected between the two mounting frames 17, a plurality of fan blades 19 are rotatably arranged on the mounting rod 18, the end part of the first pipeline 1, the two end parts of the pressure-reducing device 2 and the end part of the connecting end head 301 are fixedly connected with threaded connecting flange discs 13, the outer walls of the two ends of the pressure-reducing device 2 are respectively sleeved with a first threaded connecting sleeve 14, the end part of the first pipeline 1 and the end part of the connecting end head 301 are respectively and fixedly provided with a limiting ring 15, the end part of the first pipeline 1 and the end part of the connecting end head 301 are respectively and movably sleeved with a second threaded connecting sleeve 16, the lower end of the pressure-reducing device 2 is fixedly provided with a pressure gauge 201, a steam pipeline 51 is fixedly connected on the safety valve 5, two fixed clamping grooves 22 are fixedly arranged on the inner wall of the lower end of the pressure-reducing device 2, the two movable clamping rods 25 are respectively clamped with the four fixed clamping grooves 22, the rear ends of the two movable clamping rods 25 on the fixed ring frame 23 are respectively and fixedly connected with stainless pull ropes 27, a brace 28 is fixedly connected to one end of each stainless steel pull rope 27 far away from the movable clamping rod 25.

The working principle is as follows: when the temperature and pressure reducing device for the boiler is used, steam enters through the first pipeline 1, then is reduced in pressure through the pressure reducing device 2 and then enters into the temperature reducing pipeline 3, temperature reducing cold water enters into the temperature reducing device 4 through the water delivery pipe 8 and then is atomized and sprayed into the temperature reducing pipeline 3, the temperature reducing cold water is mixed with high-temperature steam inside the temperature reducing pipeline 3, after the high-temperature steam and the temperature reducing water are preliminarily mixed, the mixed steam and the atomized temperature reducing water continuously impact the fan blades 19 when flowing, so that the fan blades 19 rotate at a high speed, the rotating fan blades 19 can fully mix the high-temperature steam and the atomized temperature reducing water, the high-temperature steam is quickly cooled, the cooling effect is better, the high-temperature steam after being reduced in temperature is discharged through the steam outlet 302, the pressure gauge 6 and the thermometer 7 are used for detecting the pressure and the temperature of the high-temperature steam after being reduced in temperature and pressure are still higher than a set value when the secondary steam after being reduced in temperature and pressure is measured, the safety valve 5 can be opened, redundant steam enters the steam pipeline 51 through the safety valve 5, the steam pipeline 51 is connected with an air cooler, the air cooler can preliminarily reduce the temperature of the redundant steam, the redundant steam is liquefied into water after being cooled and flows out of a water outlet, a threaded connection flange plate 13 is arranged at the joint of the first pipeline 1, the pressure reducing device 2 and the temperature reducing pipeline 3, a first threaded connection sleeve 14 and a second threaded connection sleeve 16 are arranged outside the connection pipeline, the two threaded connection sleeves are adopted for detachable connection of the pipelines, the pipelines are convenient to mount and dismount, the connection strength is higher, the opposite threaded connection can prevent the threaded sleeves from loosening and falling off, the mounting and connection effect is better, the detachable filter screen 24 is arranged at the front end inside the pressure reducing device 2, the positioning and mounting of the filter screen 24 are carried out through the guide rail 20, and the mounting of the filter screen 24 is quicker and more accurate, and the filter screen 24 is also convenient to take out, the stay 28 drives the stainless steel pull rope 27 to pull outwards, so that the movable clamping rod 25 is pulled out from the inside of the fixed clamping groove 22, the fixed ring frame 23 can be unlocked, then the filter screen 24 is taken out, the filter screen 24 is convenient to take out, clean and replace, and the labor intensity of workers is reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a boiler is with reducing temperature and pressure device, includes first pipeline (1), pressure relief device (2) and pipeline (3) that reduces temperature, its characterized in that: a connecting end (301) is fixedly arranged at one end of the temperature reducing pipeline (3), a steam outlet (302) is arranged at one end, far away from the connecting end (301), of the temperature reducing pipeline (3), the first pipeline (1) is detachably connected with the pressure reducing device (2), and the pressure reducing device (2) is detachably connected with the connecting end (301);

a temperature reduction device (4) is fixedly arranged at one end, close to the connecting end (301), of the temperature reduction pipeline (3), a water delivery pipe (8) is fixedly connected onto the temperature reduction device (4), a check valve (9), a water supply regulating valve (10), a throttle valve (11) and a stop valve (12) are sequentially arranged at one end, far away from the temperature reduction device (4), of the water delivery pipe (8), a safety valve (5) is fixedly arranged in the middle of the upper end of the temperature reduction pipeline (3), and a pressure gauge (6) and a temperature gauge (7) are fixedly arranged at one end, far away from the temperature reduction device (4), of the temperature reduction pipeline (3);

the inside fixed spacing seat (21) that is provided with of pressure relief device (2) lower extreme, the equal fixed guide rail (20) that is provided with of lower extreme on spacing seat (21), two slide on guide rail (20) and be provided with retainer plate (23), the inside fixed filter screen (24) that is provided with of retainer plate (23), the inside activity kelly (25) that all slides of lower extreme is provided with, two about retainer plate (23) the equal fixedly connected with tensioning spring (26) in activity kelly (25) rear end.

2. A temperature and pressure reducing apparatus for a boiler in accordance with claim 1, wherein: the inside fixed two mounting brackets (17) that are provided with of desuperheating pipeline (3), two fixedly connected with installation pole (18) between mounting bracket (17), it is provided with a plurality of flabellums (19) to rotate on installation pole (18).

3. A temperature and pressure reducing apparatus for a boiler in accordance with claim 1, wherein: the end part of the first pipeline (1), the two end parts of the pressure reducing device (2) and the end part of the connecting end (301) are fixedly connected with threaded connecting flange plates (13).

4. A temperature and pressure reducing apparatus for a boiler in accordance with claim 1, wherein: pressure relief device (2) both ends outer wall all overlaps and is equipped with first thread connection cover (14), first pipeline (1) tip and connection end (301) tip are all fixed and are provided with spacing ring (15), first pipeline (1) tip and connection end (301) tip all activity cover are equipped with second thread connection cover (16).

5. A temperature and pressure reducing apparatus for a boiler in accordance with claim 1, wherein: the lower end of the pressure reducing device (2) is fixedly provided with a pressure gauge (201).

6. A temperature and pressure reducing apparatus for a boiler in accordance with claim 1, wherein: and a steam pipeline (51) is fixedly connected to the safety valve (5).

7. A temperature and pressure reducing apparatus for a boiler in accordance with claim 1, wherein: two fixed slot (22), two are seted up to decompression device (2) lower extreme inner wall department of being close to spacing seat (21) fixed activity kelly (25) are connected with four fixed slot (22) looks joint respectively.

8. A temperature and pressure reducing apparatus for a boiler in accordance with claim 1, wherein: the rear ends of the two movable clamping rods (25) on the fixed ring frame (23) are fixedly connected with stainless steel pull ropes (27), and one ends of the two stainless steel pull ropes (27) far away from the movable clamping rods (25) are fixedly connected with pull strips (28).