CN114713575B - Device for preventing steam impulse pipe from being blocked - Google Patents

Abstract

The invention discloses a device for preventing a steam impulse pipe from being blocked, which is characterized by comprising the following components: the steam inlet of the steam guide pipe is communicated with the inner cavity of the pressure guide pipe, the steam outlet of the steam guide pipe faces the wall surface of the pressure guide pipe, and the steam guide pipe is connected with the pressure guide pipe; the impeller is movably connected with the steam guide pipe, and the impeller faces the steam outlet of the steam guide pipe; the brush head is connected with the impeller, and is positioned on one side of the impeller, which is opposite to the steam guide pipe, and is opposite to the wall surface of the pressure guide pipe. The steam flow discharged from the steam outlet of the steam guide pipe can impact the impeller, thereby driving the impeller to rotate. The brush head moves towards the wall surface of the impulse pipe along with the rotation of the impeller. After the brush head contacts dirt on the wall surface, the dirt on the wall surface can be removed, so that the pressure guide pipe is prevented from being blocked, the measuring accuracy of the pressure gauge is improved, and the safe operation of the system is ensured.

Description

Device for preventing steam impulse pipe from being blocked

Technical Field

The invention relates to the field of impulse pipes, in particular to a device for preventing a steam impulse pipe from being blocked.

Background

The world industrialization progress is remarkable, and the importance of industrial equipment is increasingly remarkable. Industrial equipment often needs to maintain a certain temperature and steam is the most commonly used heating means. The working medium water absorbs heat in the industrial boiler and is converted into steam, and the steam is transported to industrial equipment through a steam pipeline for use. In order to obtain the steam pressure, a steam pressure guide pipeline is generally arranged, a pressure gauge is arranged on the steam pressure guide pipeline, and the steam pressure in the steam pressure guide pipeline is read through the pressure gauge to represent the steam pressure.

However, the elbow structure and the reducing structure exist in the steam pressure pipe, and the parts of the elbow structure and the reducing structure are particularly easy to be stained to form blocky dirt, so that the steam pressure pipe is blocked. If the steam impulse pipe is blocked, inaccurate measurement of the pressure gauge is caused, and thus potential safety hazards are formed.

Therefore, how to avoid the blockage inside the steam pressure guide pipe, improve the accuracy of pressure gauge measurement, ensure the safe operation of the system is a critical problem to be solved by the person skilled in the art.

Disclosure of Invention

The invention aims to prevent the inside of a steam pressure guide pipe from being blocked, improve the accuracy of pressure gauge measurement and ensure the safe operation of a system. In order to achieve the above purpose, the present invention provides the following technical solutions:

an apparatus for preventing clogging of a vapor pressure conduit, comprising:

the steam inlet of the steam guide pipe is communicated with the inner cavity of the pressure guide pipe, the steam outlet of the steam guide pipe faces the wall surface of the pressure guide pipe, and the steam guide pipe is connected with the pressure guide pipe;

the impeller is movably connected with the steam guide pipe, and the impeller faces the steam outlet of the steam guide pipe;

the brush head is connected with the impeller, and is positioned on one side of the impeller, which is opposite to the steam guide pipe, and is opposite to the wall surface of the pressure guide pipe.

Preferably, the steam guide pipe is sleeved with the rotary drum in a movable mode, and the rotary drum is connected with the impeller.

Preferably, a bearing is arranged between the rotary drum and the steam guide pipe, the rotary drum is sleeved on the outer ring of the shaft sleeve, and the inner ring of the bearing is sleeved on the steam guide pipe.

Preferably, a spring is arranged between the rotary drum and the steam guide pipe, the spring is sleeved on the steam guide pipe, one end of the spring, which is close to the steam outlet of the steam guide pipe, is connected with the steam guide pipe, the other end of the spring is a free end, and when the rotary drum moves towards the steam outlet of the steam guide pipe relative to the steam guide pipe, the rotary drum can squeeze the free end of the spring.

Preferably, the impeller is in threaded connection with the brush head.

Preferably, the brush head comprises a brush head body, a brush and a dredging tip, wherein the brush is arranged around the brush head body, and the dredging tip is positioned at the end part of the brush head body.

Preferably, the brush head body is tubular, the dredging tip is provided with a steam flushing hole, the steam flushing hole is communicated with the inner cavity of the brush head body, and the steam flushing hole faces the wall surface of the pressure guide tube.

Preferably, the steam inlet of the communicating pipe is communicated with the inner cavity of the pressure guiding pipe, the steam outlet of the communicating pipe faces the wall surface of the pressure guiding pipe, the steam guiding pipe is arranged in the communicating pipe, the steam guiding pipe is connected with the communicating pipe through a steam guiding pipe bracket, and the steam guiding pipe is connected with the pressure guiding pipe through the communicating pipe.

Preferably, the device further comprises a total communicating pipe, wherein the total communicating pipe is provided with a steam inlet and two steam outlets, the steam inlet of the total communicating pipe is communicated with the inner cavity of the pressure guiding pipe, the two steam outlets of the total communicating pipe are respectively communicated with the two communicating pipes, and each communicating pipe is internally provided with one steam guiding pipe;

the main communicating pipe is internally provided with a main steam guide pipe, the main steam guide pipe is provided with a steam inlet and two steam outlets, the two steam outlets are respectively communicated with the two steam guide pipes, and the steam inlet of the main steam guide pipe is communicated with the inner cavity of the pressure guide pipe.

Preferably, the main communicating pipe is screwed on the impulse pipe.

From the above technical solution, it can be seen that when the impulse pipe is flushed, a discharge valve downstream of the impulse pipe is opened to discharge the steam in the impulse pipe. If the discharge valve downstream of the impulse pipe is opened, the steam pressure in the impulse pipe will change, thereby creating a steam flow flowing in the direction from the boiler to the discharge valve. The steam flow enters the steam guide pipe through the steam inlet of the steam guide pipe and then is discharged from the steam outlet of the steam guide pipe. Because the impeller is arranged at the steam outlet of the steam guide pipe, the steam flow discharged from the steam outlet of the steam guide pipe can impact the impeller, thereby driving the impeller to rotate. The impeller rotates and moves away from the steam guide pipe, or the impeller rotates and moves towards the wall surface of the pressure guide pipe. Because the brush head is connected with the impeller, the brush head moves towards the wall surface of the impulse pipe along with the rotation of the impeller. After the brush head contacts dirt on the wall surface, the dirt on the wall surface can be removed, so that the pressure guide pipe is prevented from being blocked, the measuring accuracy of the pressure gauge is improved, and the safe operation of the system is ensured.

Drawings

In order to more clearly illustrate the solution of the embodiments of the present invention, the following description will briefly explain the drawings needed to be used in the embodiments, it being evident that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of an apparatus for preventing blockage of a steam pressure pipe according to an embodiment of the present invention.

Wherein, 1 is the steam guide pipe, 2 is the impeller, 3 is the brush head, 4 is the rotary drum, 5 is the spring, 6 is the bearing, 7 is the brush, 8 is the scour steam hole, 9 is dredge the tip, 10 is communicating pipe, 11 is total communicating pipe, 12 is total steam guide pipe, 13 is the external screw thread, 14 is the steam guide pipe support.

Detailed Description

The invention discloses a device for preventing a steam impulse pipe from being blocked, which can prevent the impulse pipe from being blocked, thereby improving the accuracy of pressure gauge measurement and ensuring the safe operation of a system.

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.

The invention discloses a device for preventing a steam impulse pipe from being blocked, which comprises: a steam guide pipe 1, an impeller 2 and a brush head 3. The steam inlet of the steam guide pipe 1 is communicated with the inner cavity of the pressure guide pipe, and the steam outlet of the steam guide pipe 1 faces the wall surface of the pressure guide pipe. The steam guide pipe 1 is connected with the pressure guide pipe, or the steam guide pipe 1 is supported by the pressure guide pipe. The impeller 2 is movably connected with the steam guide pipe 1, and the impeller 2 is arranged at the steam outlet of the steam guide pipe 1, and the steam outlet of the steam guide pipe 1 is opposite to the impeller 2. The brush head 3 is connected with the impeller 2, the brush head 3 is positioned at one side of the impeller 2 opposite to the steam guide pipe 1, and the brush head 3 is opposite to the wall surface of the pressure guide pipe.

The exhaust valve downstream of the impulse pipe is opened to exhaust the steam in the impulse pipe when the impulse pipe is flushed. If the discharge valve downstream of the impulse pipe is opened, the steam pressure in the impulse pipe will change, thereby creating a steam flow flowing in the direction from the boiler to the discharge valve. The steam flow enters the steam guide pipe 1 through the steam inlet of the steam guide pipe 1 and then is discharged from the steam outlet of the steam guide pipe 1. Since the impeller 2 is disposed at the steam outlet of the steam guide pipe 1, the steam flow discharged from the steam outlet of the steam guide pipe 1 may impact the impeller 2, thereby driving the impeller 2 to rotate. The impeller 2 moves away from the steam guide pipe 1 while rotating, or the impeller 2 moves toward the wall surface of the pressure guide pipe while rotating. Since the brush head 3 is connected to the impeller 2, the brush head 3 moves toward the wall surface of the impulse pipe while rotating with the impeller 2. After the brush head 3 contacts dirt on the wall surface, the dirt on the wall surface can be removed, so that the blockage of the impulse pipe is prevented, the measuring accuracy of the pressure gauge is improved, and the safe operation of the system is ensured.

The steam flow is in the direction from the boiler to the discharge valve, and the steam inlet of the steam guide pipe 1 is close to the boiler with respect to the steam outlet, or the steam outlet of the steam guide pipe 1 is close to the discharge valve with respect to the steam inlet.

Regarding the movable connection mode of the impeller 2 and the steam guide pipe 1: the invention is provided with a rotary drum 4, the rotary drum 4 is movably sleeved on the steam guide pipe 1, and the rotary drum 4 is fixedly connected with the impeller 2. When the impeller 2 advances spirally (when moving while rotating), the rotary drum 4 is driven to advance spirally. The drum 4 will thus spiral relative to the steam guide tube 1.

In order to facilitate the spiral forward movement of the rotary drum 4 relative to the steam guide pipe 1, a bearing 6 is arranged between the rotary drum 4 and the steam guide pipe 1, the rotary drum 4 is sleeved on the outer ring of the bearing 6, and the inner ring of the bearing 6 is sleeved on the steam guide pipe 1, so that the rotation of the rotary drum 4 is isolated through the bearing 6. When the drum 4 moves forward along with the impeller 2, the bearing 6 only moves axially relative to the steam guide pipe 1, so that friction between the drum 4 and the steam guide pipe 1 is reduced.

Further, two bearings 6 are provided, and the two bearings 6 are separately provided at both ends of the steam guide pipe 1. In order to form a seal against the bearing 6, the invention also provides a bearing end cap on the bearing 6.

As is apparent from the above description, when steam flow occurs in the impulse pipe, the steam flow drives the impeller 2 to move forward spirally, so that dirt on the wall surface of the impulse pipe is cleaned. However, if the brush head 3 is moved forward in a spiral manner after the dirt on the wall surface of the impulse pipe is completely removed, the wall surface of the impulse pipe is damaged by the brush head 3. In order to solve the problem, the invention is provided with the spring 5, the spring 5 is sleeved on the steam guide pipe 1, and the spring 5 is positioned between the steam guide pipe 1 and the rotary drum 4. One end of the spring 5, which is close to the steam outlet of the steam guide pipe 1, is fixedly connected with the steam guide pipe 1. The other end of the spring 5 is a free end. The end of the drum 4 near the steam inlet of the steam guide tube 1 can press against the free end of the spring 5. The drum 4 gradually presses the spring 5 as the drum 4 advances spirally with the impeller 2. By reasonably selecting the length and the elastic coefficient of the spring 5, the brush head 3 can clean dirt on the wall surface, the brush head 3 contacts the wall surface, the resistance of the spring 5 received by the rotary drum 4 is balanced with the impact force of steam flow, the impeller 2 stops rotating, and the brush head 3 does not move towards the wall surface any more.

The brush head 3 will be described in detail as follows: the brush head 3 is a wearing part and needs to be replaced periodically, and in order to facilitate the replacement of the brush head 3, the invention limits the threaded connection between the brush head 3 and the impeller 2. Specifically, an external thread is provided on the brush head 3, and an internal thread is provided on the impeller 2 to be engaged with the external thread.

The brush head 3 comprises a brush head body, a brush 7 and a dredging tip 9. The brush 7 is arranged around the brush head body, and the dredging tip 9 is arranged at the end part of the brush head body. The dredging tip 9 is used to break dirt on the wall of the impulse pipe. The brush 7 is used for removing dirt and dirt on the wall surface. The brush head body is tubular. The dredging tip 9 is provided with a flushing steam hole 8. The flushing steam hole 8 is communicated with the inner cavity of the brush head body, and the flushing steam hole 8 faces the wall surface of the impulse pipe.

From the above description, it is known that the impeller 2 faces the steam outlet of the steam guide tube 1, and the brush head 3 is disposed on the side of the impeller 2 facing away from the steam guide tube 1, i.e. the brush head 3 faces the steam outlet of the steam guide tube 1. The steam flowing out from the steam outlet of the steam guide pipe 1 firstly impacts the impeller 2, then enters the inner cavity of the brush head body, and then is sprayed onto the wall surface of the pressure guide pipe after being sprayed out from the flushing steam hole 8 on the dredging tip 9.

The specific working process of the brush head 3 is as follows: the brush head 3 rotates along with the impeller 2 rapidly, the dredging tip 9 at the front end of the brush head 3 repeatedly impacts dirt on the wall surface to break the dirt, meanwhile steam is sprayed out of the flushing steam holes 8 on the dredging tip 9 to flush the dirt, and then the brush 7 removes dirt slag and dirt on the wall surface.

Next, the installation method of the steam guide pipe 1 will be described: since the diameter of the steam guide pipe 1 is much smaller than the inner diameter of the pressure guide pipe, it is difficult to directly mount the steam guide pipe 1 on the pressure guide pipe. For this purpose, the present invention introduces the communication pipe 10, the diameter of the communication pipe 10 being larger than the diameter of the steam guide pipe 1 and smaller than the inner diameter of the pressure guide pipe. The steam inlet of the communicating pipe 10 is communicated with the inner cavity of the pressure guiding pipe, and the steam outlet of the communicating pipe 10 faces the wall surface of the pressure guiding pipe. I.e. the steam inlet and steam outlet of the communicating pipe 10 are completely identical to the steam inlet and steam outlet of the steam guide pipe 1. The steam guide pipe 1 is disposed in the communicating pipe 10, and the steam guide pipe 1 is connected to the inner wall of the communicating pipe 10 through a steam guide pipe bracket 14. The communication pipe 10 is mounted on the impulse pipe. The steam guide pipe 1 is connected to the pressure guide pipe through a communicating pipe 10.

The invention further arranges two communicating pipes 10, one steam guide pipe 1 is arranged in the two communicating pipes 10, and an impeller 2 and a brush head 3 are arranged at the steam outlet of each steam guide pipe 1. Thus, two brush heads 3 are formed, and the two brush heads 3 can remove the scale on the wall surfaces of two different parts of the impulse pipe. Thus improving the use function of the device. Two communicating pipes 10 communicate with a total communicating pipe 11. The total communication pipe 11 has one steam inlet and two steam outlets, which communicate with the steam inlets of the two communication pipes 10, respectively. The general communication pipe 11 and the two communication pipes 10 form a one-in two-out three-way structure. Similarly, the two steam guide pipes 1 are communicated with a total steam guide pipe 12, and the total steam guide pipe 12 is arranged in the total communicating pipe 11. The main steam guide pipe 12 has one steam inlet and two steam outlets, which are respectively communicated with the two steam guide pipes 1.

The end of the main communicating pipe 11 opposite to the steam inlet is provided with an external thread 13, and the wall surface of the pressure guiding pipe is provided with an internal thread matched with the external thread 13. The device can be installed by screwing the main communicating pipe 11 on the impulse pipe.

Finally, it is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. An apparatus for preventing clogging of a vapor pressure conduit, comprising:

the steam inlet of the steam guide pipe is communicated with the inner cavity of the pressure guide pipe, the steam outlet of the steam guide pipe faces the wall surface of the pressure guide pipe, and the steam guide pipe is connected with the pressure guide pipe;

the impeller is movably connected with the steam guide pipe, the impeller faces the steam outlet of the steam guide pipe, when the exhaust valve at the downstream of the steam guide pipe is opened, the steam pressure in the steam guide pipe can be changed, so that a steam flow from the boiler to the exhaust valve is formed, the steam flow enters the steam guide pipe through the steam inlet of the steam guide pipe, and the impeller is blown to rotate when the steam is exhausted from the steam outlet of the steam guide pipe;

the rotary drum is movably sleeved on the steam guide pipe, is connected with the impeller, and can drive the rotary drum to advance spirally when the impeller advances spirally, and can advance spirally relative to the steam guide pipe;

the brush head, the brush head with the impeller is connected, just the brush head is located the impeller is facing away from one side of steam guide pipe, the brush head is facing to the wall of pressure guide pipe, the brush head can be along with the impeller rotates the limit towards the wall of pressure guide pipe, the brush head includes brush head body, brush and mediation tip, the brush is around the brush head body sets up, the mediation tip is located the tip of brush head body, the mediation tip is used for destroying dirt on the pressure guide pipe wall, the brush is used for removing dirt sediment and the contamination on the wall.

2. The device for preventing blockage of a steam guide pipe according to claim 1, wherein a bearing is arranged between the rotary drum and the steam guide pipe, the rotary drum is sleeved on an outer ring of the bearing, and an inner ring of the bearing is sleeved on the steam guide pipe.

3. The apparatus for preventing a steam pressure pipe from being blocked according to claim 1, wherein a spring is provided between the drum and the steam guide pipe, the spring is sleeved on the steam guide pipe, one end of the spring, which is close to a steam outlet of the steam guide pipe, is connected with the steam guide pipe, the other end of the spring is a free end, and the drum presses the free end of the spring when the drum moves toward the steam outlet of the steam guide pipe relative to the steam guide pipe.

4. The apparatus for preventing clogging of a vapor delivery tube of claim 1, wherein said impeller is threadably coupled to said brush head.

5. The device for preventing blockage of a steam pressure guide pipe according to claim 1, wherein the brush head body is tubular, the dredging tip is provided with a steam flushing hole, the steam flushing hole is communicated with the inner cavity of the brush head body, and the steam flushing hole faces the wall surface of the pressure guide pipe.

6. The apparatus for preventing a vapor pressure pipe from being blocked according to claim 1, further comprising a communicating pipe, wherein a vapor inlet of the communicating pipe is communicated with an inner cavity of the pressure pipe, a vapor outlet of the communicating pipe faces a wall surface of the pressure pipe, the vapor pipe is arranged in the communicating pipe, the vapor pipe is connected with the communicating pipe through a vapor pipe bracket, and the vapor pipe is connected with the pressure pipe through the communicating pipe.

7. The apparatus for preventing clogging of a vapor pressure conduit according to claim 6, further comprising a total communication pipe having one vapor inlet and two vapor outlets, said vapor inlet of said total communication pipe communicating with an inner cavity of said pressure conduit, said two vapor outlets of said total communication pipe communicating with two of said communication pipes, respectively, one of said vapor conduits being disposed within each of said communication pipes;

the main communicating pipe is internally provided with a main steam guide pipe, the main steam guide pipe is provided with a steam inlet and two steam outlets, the two steam outlets are respectively communicated with the two steam guide pipes, and the steam inlet of the main steam guide pipe is communicated with the inner cavity of the pressure guide pipe.

8. The apparatus for preventing vapor pressure pipe plugging according to claim 7, wherein said main communicating pipe is screwed to said pressure pipe.