CN213930374U

CN213930374U - Steam boiler drainage pipeline system

Info

Publication number: CN213930374U
Application number: CN202023111967.7U
Authority: CN
Inventors: 任冠华
Original assignee: Lianyungang Hongyang Thermal Power Co ltd
Current assignee: Lianyungang Hongyang Thermal Power Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-08-10
Anticipated expiration: 2030-12-22

Abstract

The utility model discloses a steam boiler drainage pipe system, including the boiler, normal hydrophobic pipeline and bypass drainage pipe of heater and parallel connection between the two, the manual door before the normal hydrophobic governing door is equipped with on the normal hydrophobic pipeline, the manual door behind normal hydrophobic electric control door and the normal hydrophobic governing door, three-way pipe and back three-way pipe before being equipped with on the bypass drainage pipe, the first output of preceding three-way pipe, between the first input of back three-way pipe and the second output of preceding three-way pipe, pipeline between the second input of back three-way pipe is equipped with the check valve separately. The utility model has the advantages that the two check valves with adjustable spring resistance are arranged in the bypass drainage pipeline, so that the pipe explosion accident is avoided when the flow is overlarge and the auxiliary drainage operation is carried out; when the check valve needs to be cleaned, the opening valve connected with the output end of the front three-way pipe can be closed, so that the on-line daily maintenance or spring resistance adjustment operation can be realized.

Description

Steam boiler drainage pipeline system

Technical Field

The utility model relates to a boiler technical field especially relates to a steam boiler drainage pipe-line system.

Background

At present, a gas-liquid two-phase flow self-regulating device is adopted for normal drainage of a steam boiler, a signal pipe is required to be arranged between the steam boiler and the gas-liquid two-phase flow to collect a high internal liquid level value, and the signal pipe is particularly seriously washed due to the existence of a mixture of liquid and liquid in the pipe. In addition, the high pressure normal drainage expands and reduces pressure after passing through the gas-liquid two-phase flow, and a gas-liquid mixture is formed, so that the straight pipe section and the elbow at the back of the door are scoured, and the safety operation is greatly threatened. Meanwhile, when water flows too much, no bypass is used for auxiliary drainage operation, and pipe explosion accidents are easy to happen.

Therefore, the patent specification with the publication number of CN206159811U discloses a drain pipeline structure of a high-pressure heater for reducing the washing of the drain pipeline, which comprises the high-pressure heater, wherein the lower part of the high-pressure heater is provided with a normal water delivery pipeline, and a normal drain adjusting door front manual door, a normal drain electric adjusting door, a normal drain adjusting door front manual door and a next-stage high-pressure heater are sequentially arranged on the normal drain pipeline. A bypass drain pipeline connected with the normal water pipeline in parallel is further arranged between the high-pressure heater and the next-stage high-pressure heater, and a bypass drain adjusting manual door is arranged on the bypass drain pipeline. And an electronic liquid level meter is arranged on the side wall of the high-pressure heater and is connected with the normal drainage electric adjusting door.

However, the steam boiler drain pipe system has the defects that the bypass drain pipe needs to be manually adjusted, the operation is inconvenient, and the on-line daily maintenance cannot be carried out. Therefore, it is necessary to optimize and improve it.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned problem that exists among the conventional art, provide a steam boiler drainage pipe-line system.

In order to realize the technical purpose, the technical effect is achieved, the utility model discloses a realize through following technical scheme:

a steam boiler drain pipeline system comprises a boiler, a heater, a normal drain pipeline and a bypass drain pipeline, wherein the normal drain pipeline and the bypass drain pipeline are connected in parallel between the boiler and the heater, the normal drain pipeline is provided with a front manual door of a normal drain regulating door, a normal drain electric regulating door and a rear manual door of the normal drain regulating door, the bypass drain pipeline is provided with a front three-way pipe and a rear three-way pipe, and pipelines between a first output end of the front three-way pipe and a first input end of the rear three-way pipe, and between a second output end of the front three-way pipe and a second input end of the rear three-way pipe are respectively provided with a check valve;

the check valve comprises a valve body, a first supporting block is fixed to the inner portion of the valve body close to the front end, a second supporting block is fixed to the inner portion of the valve body close to the rear end, a convex pipe is connected to the rear side of the first supporting block, a guide groove is formed in the convex pipe, a liquid inlet communicated with the guide groove is formed in the center of the first supporting block, a plurality of liquid guide ports are formed in the pipe wall of the convex pipe close to the rear end along the circumferential direction, a sealing block is connected to the guide groove in a sliding mode, the back side of the sealing block is connected with a first limiting sleeve through the supporting rod, a lead screw is screwed to the center of the second supporting block, a knob is fixed to the outer end of the lead screw, a second limiting sleeve is fixed to the inner end of the lead screw, a compression spring is limited between the first limiting sleeve and the second limiting sleeve, and a plurality of liquid outlets are formed in the second supporting block around the lead screw.

Furthermore, in the above steam boiler drain pipe system, an electronic level meter is arranged on the side wall of the boiler, and the electronic level meter is connected with the normal drain electric regulating valve through a pipeline.

Further, in the steam boiler drain pipe system, the diameter of the liquid inlet is smaller than that of the guide groove.

Further, in the steam boiler drain pipe system, an annular groove is formed in the periphery of the sealing block, and a rubber sealing ring is sleeved in the annular groove.

Furthermore, in the above steam boiler drain pipe system, the first output end and the second output end of the fore tee pipe are respectively provided with an opening valve.

Further, in the above steam boiler drain pipe system, the main components of the check valve are made of stainless steel material.

The utility model has the advantages that:

the utility model has reasonable structural design, on one hand, two check valves with adjustable spring resistance are arranged in the bypass drainage pipeline, thereby avoiding the occurrence of pipe explosion accidents when the flow is overlarge and the auxiliary drainage operation is carried out; on the other hand, the two output ends of the front three-way pipe are respectively provided with an opening valve, when the check valve needs to be cleaned, the opening valve connected with the output end can be closed, and thus, the on-line daily maintenance or spring resistance adjustment operation can be realized.

Of course, it is not necessary for any product to achieve all of the above advantages simultaneously in practicing the invention.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of the present invention;

FIG. 2 is a schematic structural view of the check valve of the present invention;

fig. 3 is a schematic structural view of the middle sealing block, the support rod and the first position-limiting sleeve of the present invention;

fig. 4 is a schematic structural view of the middle screw rod, the knob and the second position-limiting sleeve of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1-boiler, 2-heater, 3-normal drainage pipeline, 4-normal drainage regulating gate front manual door, 5-normal drainage electric regulating gate, 6-normal drainage regulating gate rear manual door, 7-electronic liquid level meter, 8-bypass drainage pipeline, 9-front three-way pipe, 10-check valve, 101-valve body, 102-first supporting block, 103-convex pipe, 104-liquid inlet, 105-guide groove, 106-liquid guide port, 107-sealing block, 108-supporting rod, 109-first limiting sleeve, 110-second supporting block, 111-screw rod, 112-knob, 113-second limiting sleeve, 114-compression spring, 115-liquid outlet, 11-rear three-way pipe.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present embodiment is a steam boiler steam trap pipe system including a boiler 1, a heater 2, and a normal trap pipe 3 and a bypass trap pipe 4 connected in parallel therebetween. The normal drainage pipeline 3 is provided with a manual door 4 in front of the normal drainage adjusting door, a normal drainage electric adjusting door 5 and a manual door 6 behind the normal drainage adjusting door, the side wall of the boiler 1 is provided with an electronic liquid level meter 7, and the electronic liquid level meter 7 is connected with the normal drainage electric adjusting door 5 through a pipeline.

In this example. The bypass drain pipe 8 is provided with a front three-way pipe 9 and a rear three-way pipe 11, and pipelines between the first output end of the front three-way pipe 9 and the first input end of the rear three-way pipe 11 and between the second output end of the front three-way pipe 9 and the second input end of the rear three-way pipe 11 are respectively provided with a check valve 10. The first output end and the second output end of the front three-way pipe 9 are respectively provided with an opening valve.

In this embodiment, the check valve 10 includes a valve body 101, and a first support block 102 is fixed to the inside of the valve body 101 near the front end and a second support block 110 is fixed near the rear end. The rear side of the first supporting block 102 is connected with a convex pipe 103, a guide groove 105 is arranged in the convex pipe 103, a liquid inlet 104 communicated with the guide groove 105 is formed in the center of the first supporting block 102, and the diameter of the liquid inlet 104 is smaller than that of the guide groove 105. The pipe wall of the convex pipe 103 is provided with a plurality of liquid guide ports 106 along the circumferential direction near the rear end, a sealing block 107 is connected in the guide groove 105 in a sliding manner, and the back side of the sealing block 107 is connected with a first limiting sleeve 109 through a support rod 108. The center of the second supporting block 110 is screwed with a screw rod 111, the outer end of the screw rod 111 is fixed with a knob 112, and the inner end is fixed with a second limit sleeve 113. A compression spring 114 is limited between the first limiting sleeve 109 and the second limiting sleeve 113, and a plurality of liquid outlets 115 are formed around the screw rod by the second supporting block 110.

In this embodiment, an annular groove is formed in the periphery of the sealing block 107, and a rubber sealing ring is sleeved in the annular groove.

In the present embodiment, the main components of the check valve 10 are made of stainless steel.

One specific application of this embodiment is: the embodiment has reasonable structural design, and on one hand, the two check valves 10 with adjustable spring resistance are arranged in the bypass drainage pipeline, so that the pipe explosion accident is avoided when the flow is overlarge and the auxiliary drainage operation is carried out; on the other hand, the two output ends of the front three-way pipe 9 are both provided with an opening valve, and when the check valve needs to be cleaned, the opening valve connected with the output end can be closed, so that the on-line daily maintenance or spring resistance adjustment operation can be realized.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a steam boiler hydrophobic pipeline system, includes boiler, heater and parallel connection normal hydrophobic pipeline and bypass hydrophobic pipeline between the two, the manual door behind the manual door before the normal hydrophobic adjusting gate, normal hydrophobic electric control door and the normal hydrophobic adjusting gate, its characterized in that are equipped with on the normal hydrophobic pipeline: the bypass drain pipeline is provided with a front three-way pipe and a rear three-way pipe, and pipelines between the first output end of the front three-way pipe, the first input end of the rear three-way pipe and the second output end of the front three-way pipe and between the second input ends of the rear three-way pipes are respectively provided with a check valve;

2. A steam boiler steam trap piping system according to claim 1, wherein: the lateral wall of boiler is provided with the electron level gauge, the electron level gauge passes through the tube coupling with normal hydrophobic electric control door and is connected.

3. A steam boiler steam trap piping system according to claim 1, wherein: the diameter of the liquid inlet is smaller than that of the guide groove.

4. A steam boiler steam trap piping system according to claim 1, wherein: the periphery of the sealing block is provided with an annular groove, and a rubber sealing ring is sleeved in the annular groove.

5. A steam boiler steam trap piping system according to claim 1, wherein: and the first output end and the second output end of the front three-way pipe are respectively provided with an opening valve.

6. A steam boiler steam trap piping system according to claim 1, wherein: the main parts of the check valve are all made of stainless steel materials.