CN114508478A

CN114508478A - Steam-discharging negative-pressure drainage system under small machine

Info

Publication number: CN114508478A
Application number: CN202011275838.3A
Authority: CN
Inventors: 乔岗杰; 李岗; 董珍柱; 高春文; 李吉明; 戴生明
Original assignee: Shanxi Huaguang Power Generation Co ltd
Current assignee: Shanxi Huaguang Power Generation Co ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2022-05-17

Abstract

The invention discloses a steam discharging negative pressure drainage system under a mini machine, which comprises a steam discharging pipe of the mini machine and a steam discharging device of a main machine, wherein the steam discharging pipe of the mini machine is arranged lower than a steam discharging pipeline of the main machine, condensed water on the inner surface of the steam discharging pipe of the mini machine is collected at the bottom of the steam discharging pipe and led out of an output pipe, a drain box is arranged at the output end, a drain pipe is arranged on the surface of the drain box close to the bottom, the output end of the drain pipe is connected with the steam discharging device of the main machine, a drainage part is arranged between the steam discharging device of the main machine and the drain pipe, a steam discharging pipe is arranged at the top end of the drain box, and a vacuum control mechanism is arranged on the steam discharging pipe. According to the invention, through the arrangement of a series of structures, the steam exhaust negative pressure drainage system under the small machine can suck the condensed drainage of the steam exhaust pipeline of the small machine by means of the negative pressure effect and uniformly treat the drainage, so that the phenomena of vibration and the like inside the small machine caused by water body retention inside the pipeline are avoided.

Description

Steam-discharging negative-pressure drainage system under small machine

Technical Field

The invention relates to the technical field of hydrophobic treatment, in particular to a small-sized machine exhaust negative-pressure drainage system.

Background

In the system for recovering the drain water generated in the industrial production by using the air cooling unit, because the industrial production scale is large, the phenomenon of a plurality of units can exist, such as simultaneous use of a main unit and a small unit, and when a plurality of units simultaneously exhaust steam, an independent main unit steam exhaust device and a vacuum pumping system are often used, so that the gas and the drain water are uniformly treated, and the mode makes the steam exhaust pipeline of the small unit far away from the steam exhaust device of the main unit.

When little unit steam exhaust pipeline is far away than the host computer vacuum pumping system vacuum pump distance, make the unable whole exhaust pipe of steam extraction in the little machine operation easily, long-term operation little quick-witted steam condensate back gathering is at the steam exhaust pipeline, forms the jam of steam extraction passageway, leads to the little quick-witted vibration, causes the unable safe and stable operation of little machine, consequently to the hydrophobic transformation of little quick-witted steam exhaust pipeline gathering be independent discharge system to the normal operating of little machine is maintained.

SUMMARY OF THE PATENT FOR INVENTION

The invention aims to provide a small-sized under-exhaust negative-pressure drainage system to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a little quick-witted exhaust negative pressure drainage system, includes little quick-witted exhaust pipe and host computer exhaust apparatus, little quick-witted exhaust pipe is less than the host computer exhaust pipe and lays, and little quick-witted exhaust pipe internal surface condensate water gathers in the exhaust pipe bottom to draw forth the output tube, output installation drain box, the last surface mounting who is close to the bottom of drain box has the drain pipe, the drain pipe output is connected with host computer exhaust apparatus, and installs drainage component between host computer exhaust apparatus and the drain pipe, the exhaust pipe is installed on the top of drain box, and installs vacuum control mechanism on the exhaust pipe.

Preferably, the drainage component is a drainage pump, the drainage pump is installed between the host steam exhaust device and the drainage pipe, the input end of the drainage pump is connected with the output end of the drainage pipe, and the output end of the drainage pump is connected with the host steam exhaust device through a pipeline.

Preferably, the surface of the drain pipe is provided with a drain valve, and a pipeline connecting the drain pump and the steam exhaust device of the host is provided with an anti-reverse valve.

Preferably, the vacuum control mechanism comprises a pneumatic control valve and a vacuum piece, the pneumatic control valve is installed on the surface of the exhaust pipe, and the vacuum piece is installed on the surface of the exhaust pipe above the pneumatic control valve.

Preferably, the surface of the output pipe is provided with a hydrophobic switch valve.

Preferably, the drain trap surface mounting of drain pipe top has the control box, and the hydraulic pressure detector is installed on the top of control box, and inside the probe of hydraulic pressure detector extended to the drain trap, the internal circuit of control box passed through the wire respectively with drainage pump, gas accuse valve, drain valve and check valve electric connection.

Preferably, the joint of the top end of the output pipe and the steam exhaust pipe of the small machine is detachably provided with a water collecting hopper.

Preferably, the inside of the water collecting hopper is communicated with the inside of the small machine exhaust pipe, and the top end of the inner wall of the water collecting hopper is provided with a protective net.

Preferably, the shielding piece is obliquely and downwardly and uniformly installed in the small machine steam exhaust pipe, the lower converging piece is uniformly installed on the inner wall of the small machine steam exhaust pipe below the shielding piece, the converging hole penetrating from left to right is formed in the surface of the bottom of the lower converging piece, and a pipeline water collecting point can be arranged in the water collecting hopper by utilizing the inclination of pipeline installation.

Compared with the prior art, the invention has the beneficial effects that:

1. this vapour negative pressure drainage system under smart machine, through installing the output tube on smart machine exhaust pipe, can carry out solitary guide with the inside hydrophobic of condensing of smart machine exhaust pipe, avoid hydrophobic condensing or jam smart machine exhaust pipe, cause the unable normal use of smart machine exhaust, prevent that harmful phenomena such as little built-in vibration from taking place behind the unable normal steam extraction, through the drain box, can save the hydrophobic of condensing in the smart machine exhaust pipe alone, and converge, convenient follow-up unified processing that carries on, whole in-process, can form an independent recovery system, can retrieve hydrophobic, and carry out unified processing in the income host computer exhaust apparatus, can avoid in the smart machine exhaust pipe direct access host computer exhaust apparatus, the harmful phenomena because of the pipeline is longer to cause takes place.

2. This vapour negative pressure drainage system under little machine, through the gas accuse valve, drain valve and hydrophobic switch valve, can get into and when the discharged water body state is controlled the inside steam trap, can make the inside passageway such as discharge of whole steam trap carry out on-off control, under the condition that needs the steam trap catchment, can close steam drain valve and hydrophobic switch valve, with the help of the gas accuse valve, can aspirate the inside air of steam trap, realize the inside vacuum effect of steam trap, during follow-up catchment, open hydrophobic switch valve alone, directly absorb the inside water of confluence with the help of the negative pressure, be convenient for realize the effect of automatic confluence.

3. This vapour negative pressure drainage system under little machine, through the water catch bowl, can carry out temporary delay effect with the hydrophobic of condensing, when convenient all together carry through the collecting pipe, be convenient for form the liquid seal effect, inside the gaseous entering output tube of reducible little machine steam extraction pipe, use with the help of sheltering from the piece combination, the two is all inside little machine steam extraction pipe, can be to gaseous when forming certain delay effect, make things convenient for the water to condense the back, can guide the water, conveniently collect and converge, improve hydrophobic recovery efficiency.

Drawings

FIG. 1 is a schematic view of the overall structure of patent embodiment 1 of the present invention;

FIG. 2 is a schematic view of the structure of a steam trap according to patent example 2 of the present invention;

FIG. 3 is a schematic diagram of a drain outlet pipeline according to example 3 of the present invention;

fig. 4 is a schematic diagram of the internal structure of the drain outlet pipeline in patent embodiment 3 of the present invention.

In the figure: 1. a small machine exhaust pipe; 2. a collector pipe; 3. a drain switch valve; 4. a pneumatic control valve; 5. a vacuum member; 6. an air exhaust pipe; 7. a drain tank; 8. a drain valve; 9. a main machine steam exhaust device; 10. an anti-reverse valve; 11. a drain pump; 12. a drain pipe; 13. a hydraulic pressure detector; 14. a control box; 15. an exhaust port; 16. a shielding sheet; 17. a lower manifold sheet; 18. a protective net; 19. a water collecting bucket.

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, not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the patent of the invention without any inventive work belong to the protection scope of the patent of the invention.

In the description of the present patent, it is to be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present patent and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present patent. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present patent application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be 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 meaning of the above terms in the present patent can be understood in a specific case by those skilled in the art.

Example 1

As shown in fig. 1, the steam exhaust negative pressure drainage system under the small machine in the embodiment includes a steam exhaust pipe 1 of the small machine and a steam exhaust device 9 of the main machine, the steam exhaust pipe 1 of the small machine is a steam exhaust channel of a small machine equipment set, and the steam exhaust device 9 of the main machine equipment set is a steam exhaust channel of the main machine equipment set, different from the prior art, the steam exhaust pipe 1 of the small machine is connected with the steam exhaust device 9 of the main machine, but not only is the steam exhaust channel connected, the steam exhaust pipe 1 of the small machine is lower than the steam exhaust channel of the main machine, and the surface of the steam exhaust pipe 1 of the small machine is vertically and downwardly arranged with an output pipe 2, the two are communicated, the drainage condensed inside the steam exhaust pipe 1 of the small machine can be recovered and guided by a branch, the output end of the output pipe 2 is provided with a drain tank 7, the recovered drainage is guided into the inside of the drain tank 7 for storage, the drain pipe 12 is arranged on the surface of the drain tank 7 near the bottom, the stored drainage pipe can be discharged, the output end of the drain pipe 12 is connected with the steam exhaust device 9 of the main machine, the drainage after will collecting is unified with the help of host computer exhaust apparatus 9 and is handled, is convenient for unify the recovery to hydrophobic, and installs water discharge component between host computer exhaust apparatus 9 and the drain pipe 12, to the water pressurization, is convenient for discharge, and exhaust pipe 6 is installed on the top of drain box 7, and exhaust pipe 6 switches on with drain box 7 is inside, can discharge drain box 7 inside air, and installs vacuum control mechanism on the exhaust pipe 6. The inside of the exhaust air pipe 6 and the drain tank 7 is vacuum-treated.

Specifically, drainage component is drainage pump 11, and drainage pump 11 optional uses general miniature force (forcing) pump, when the drainage, can carry out pressurization to the water and handle, the long distance transport of being convenient for, and drainage pump 11 is installed between host computer exhaust apparatus 9 and drain pipe 12, and drainage pump 11's input and drain pipe 12 output are connected, and drainage pump 11's output passes through the pipeline and is connected with host computer exhaust apparatus 9.

Furthermore, the surface of the drain pipe 12 is provided with a drain valve 8, the drain valve 8 is used for controlling the opening and closing of the drain pipe 12 and the drain pump 11, the pipeline connecting the drain pump 11 and the host steam exhaust device 9 is provided with an anti-reverse valve 10, and when the pipeline is opened, a one-way valve component needs to be selected, so that the damage to the pump body caused by the backflow of the water body in the host steam exhaust device 9 to the drain pump 11 is avoided.

Further, the vacuum control mechanism comprises an air control valve 4 and a vacuum piece 5, the air control valve 4 is installed on the surface of the air exhaust pipe 6, the air control valve 4 can be used for opening and closing the air exhaust pipe 6, the vacuum piece 5 is installed on the surface of the air exhaust pipe 6 above the air control valve 4, the vacuum piece 5 can actually select a common vacuum pump, and can also be directly connected with an external pipeline, particularly a vacuum generating device of host equipment, through a pipeline to provide required power for the air exhausted by the air exhaust pipe 6.

Furthermore, the surface of the collecting pipe 2 is provided with a drain switch valve 3, and the drain switch valve 3 is used for controlling the on-off between the output pipe 2 and the drain tank 7.

The using method of the embodiment comprises the following steps: when the device is in actual use, according to actual conditions, a vacuum generating component can be externally connected, or a vacuum pump is used as a vacuum piece 5, the drain valve 8 and the drainage switch valve 3 are closed, the pneumatic control valve 4 is opened, air in the drain tank 7 can be sucked under the influence of vacuum in the exhaust pipe 6, so that a negative pressure state is formed in the drain tank 7, the pneumatic control valve 4 is closed, after gas in the small machine equipment set is exhausted through the small machine exhaust pipe 1, the drainage switch valve 3 is opened, the condensed drainage enters the drain tank 7 from the collecting pipe 2 due to the negative pressure influence in the drain tank 7 to be stored, after the condensed drainage is continuously stored to a certain liquid level, the drain valve 8 and the check valve 10 are simultaneously opened, the drain pump 11 is opened, the drain tank 7 forms a negative pressure effect, after water in the drain tank 7 is sucked out, pressurization is carried out, and the condensed drainage is conveyed to the inside of the main machine exhaust device 9 through a pipeline to be subjected to unified drainage recovery treatment, after the inside evacuation of steam trap 7 or the liquid level drop to drain pipe 12 position, close drainage pump 11, close drain valve 8 and hydrophobic switch valve 3, open gas accuse valve 4 and to 7 evacuation of steam trap, so operate repeatedly, be convenient for to the timely effective processing of the inside water of cell steam exhaust pipe 1.

Example 2

The structure of the steam-discharging negative-pressure drainage system under the small machine in the embodiment is basically the same as that of the negative-pressure drainage system under the small machine in the embodiment 1, and the difference is that: the surface of the drain tank 7 above the drain pipe 12 is provided with a control box 14, the top end of the control box 14 is provided with a hydraulic detector 13, a probe of the hydraulic detector 13 extends into the drain tank 7, and an internal circuit of the control box 14 is respectively electrically connected with the drain pump 11, the pneumatic control valve 4, the drain valve 8 and the check valve 10 through leads (see fig. 2). The control box 14 is a common valve electric control box, a control circuit, a control button and the like are installed on the control box, the hydraulic detector 13 can select a common water level sensor, such as a water level sensor with the model of WMB-FS, and can detect the liquid level condition in the drain tank 7, at the moment, all valve bodies need to be used by electromagnetic valves and are controlled by the control circuit in the control box 14, and a circulating operation system for automatically supplying and draining water is convenient to realize.

Specifically, during actual use, the hydraulic detector 13 can detect the water level inside the drain tank 7, and the information is lost to the internal circuit of the control box 14, and when the water level reaches a certain value, the control circuit can open each valve and the drain pump 11 and the like to perform operations such as drainage, vacuum pumping and the like.

Example 3

The structure of the steam-discharging negative-pressure drainage system under the small machine in the embodiment is basically the same as that of the steam-discharging negative-pressure drainage systems under the small machines in the

embodiments

1 and 2, and the difference is that: a water collecting hopper 19 is detachably arranged at the joint of the top end of the output pipe 2 and the steam exhaust pipe 1 of the small machine (see fig. 3 and 4). The water collecting hopper 19 is a part with a wide middle part and narrow upper and lower ends and is used for temporary storage operation of water, and the two ends of the water collecting hopper can be connected by means of flanges, so that subsequent disassembly and maintenance operation can be conveniently carried out.

Specifically, the inside of water collecting bucket 19 switches on with the inside of xiao machine exhaust pipe 1, and the inside water that condenses of xiao machine exhaust pipe 1 gets into in the water collecting bucket 19, and the protection network 18 is installed on the inner wall top of water collecting bucket 19, and protection network 18 is the comparatively intensive dictyosome of mesh, can form the effect of filtering the separation, avoids that xiao machine exhaust pipe 1 is inside probably to have impurity to get into water collecting bucket 19.

Further, the inside slant of ray tube 1 of the small aircraft is evenly installed downwards and is sheltered from piece 16, shelter from piece 16 and be in the top position, can form the inclined plane, certain shelters from the gas of process, create the condition for the water condenses, shelter from the 1 inner wall of ray tube of the small aircraft of piece 16 below and evenly install lower confluence piece 17, be located the below, the inclined plane is upwards laid, form sheltering from of water and gas, can avoid the water that condenses to flow back through ray tube 1 pipe wall of ray tube, the bottom surface of lower confluence piece 17 is provided with and controls the confluence hole 15 that runs through, under the condition that piece 17 shelters from the condensate water that converges down, the condensate water can flow from confluence hole 15, and go into inside the collecting hopper 19 and retrieve.

In addition, in order to ensure the normal air flow of the small machine exhaust pipe 1, the sizes of the lower confluence sheet 17 and the shielding sheet 16 need to be reasonably designed.

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 described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a steam negative pressure drainage system under cell, includes cell steam extraction pipe (1) and host computer steam extraction device (9), its characterized in that: little quick-witted exhaust pipe (1) is less than the host computer exhaust pipe and lays, and little quick-witted exhaust pipe (1) internal surface condensate water collects in the exhaust pipe bottom to draw output tube (2), output installation drain box (7), the surface mounting who is close to the bottom on drain box (7) has drain pipe (12), drain pipe (12) output and host computer exhaust apparatus (9) are connected, and installs drainage component between host computer exhaust apparatus (9) and drain pipe (12), exhaust pipe (6) are installed on the top of drain box (7), and install vacuum control mechanism on exhaust pipe (6).

2. The small-sized machine exhaust negative pressure drainage system according to claim 1, characterized in that: the drainage component is a drainage pump (11), the drainage pump (11) is installed between the host steam exhaust device (9) and the drain pipe (12), the input end of the drainage pump (11) is connected with the output end of the drain pipe (12), and the output end of the drainage pump (11) is connected with the host steam exhaust device (9) through a pipeline.

3. The small-sized machine exhaust negative pressure drainage system according to claim 2, characterized in that: the surface of the drain pipe (12) is provided with a drain valve (8), and a pipeline connecting the drain pump (11) and the main machine steam exhaust device (9) is provided with an anti-reverse valve (10).

4. The small-sized machine exhaust negative pressure drainage system according to claim 1, characterized in that: the vacuum control mechanism comprises a pneumatic control valve (4) and a vacuum piece (5), the pneumatic control valve (4) is installed on the surface of the air exhaust pipe (6), and the vacuum piece (5) is installed on the surface of the air exhaust pipe (6) above the pneumatic control valve (4).

5. The small-sized machine exhaust negative pressure drainage system according to claim 1, characterized in that: and a hydrophobic switch valve (3) is arranged on the surface of the output pipe (2).

6. The small-sized machine exhaust negative pressure drainage system according to claim 1, characterized in that: drain pipe (12) top drain box (7) surface mounting has control box (14), and hydraulic detector (13) are installed on the top of control box (14), and inside the probe of hydraulic detector (13) extended to drain box (7), the internal circuit of control box (14) passed through the wire respectively with drain pump (11), gas accuse valve (4), drain valve (8) and prevent contrary valve (10) electric connection.

7. The small-sized machine exhaust negative pressure drainage system according to claim 1, characterized in that: the top of the output pipe (2) is detachably provided with a water collecting bucket (19) at the joint of the small machine exhaust pipe (1).

8. The small-sized machine exhaust negative pressure drainage system according to claim 7, characterized in that: the inside of the water collecting hopper (19) is communicated with the inside of the small machine exhaust pipe (1), and the top end of the inner wall of the water collecting hopper (19) is provided with a protective net (18).

9. The small-sized machine exhaust negative pressure drainage system according to claim 1, characterized in that: the steam collecting device is characterized in that shielding pieces (16) are obliquely and downwardly and uniformly installed in the small machine steam exhaust pipe (1), lower flow converging pieces (17) are uniformly installed on the inner wall of the small machine steam exhaust pipe (1) below the shielding pieces (16), flow converging holes (15) which penetrate left and right are formed in the bottom surface of the lower flow converging pieces (17), and a pipeline water collecting point can be arranged in a water collecting hopper (19) by utilizing the inclination of pipeline installation.