CN215633183U - Visual anti-freezing system for thermodynamic system pipeline - Google Patents

Abstract

The utility model belongs to the technical field of pipeline anti-freezing, and particularly discloses a visual anti-freezing system for a thermodynamic system pipeline, which comprises the thermodynamic system pipeline, wherein a drainage system is arranged on the thermodynamic system pipeline, the drainage system comprises a first valve and a third valve, the first valve and the third valve are positioned on the drainage system pipeline, an inlet of the third valve is connected with an instrument valve through a pipeline, the tail end of an outlet of the instrument valve is provided with a water tank, and a water outlet of the water tank is connected with a water drainage channel; the flow of water in the valve pipeline can prevent the whole thermodynamic system pipeline from being frozen, and meanwhile, the combination of the valve and the water tank can visually see whether the water in the pipeline flows to judge whether the pipeline is frozen or not.

Description

Visual anti-freezing system for thermodynamic system pipeline

Visual anti-freezing system for thermodynamic system pipeline

Technical Field

The utility model belongs to the technical field of pipeline freeze protection, and particularly relates to a visual freeze protection system for a thermodynamic system pipeline.

Background

The waste heat power generation boiler, the steam system, the water supply system, the condensate system and the like matched with the northern cement kiln are arranged outdoors, for the reasons that the systems stop production in winter, prevent freezing, warm the steam system and the like, according to the industry specifications and standards, the purposes of preventing freezing, warming the pipes and the like are achieved by designing and installing drainage water in the systems, but in winter, when the systems normally operate and the environment temperature is lower than minus 5 ℃ for a long time, the drainage water can be frozen, the pipelines can be frozen and cracked, the drainage water system cannot be used, the safe operation of the whole thermodynamic system is influenced, the measures adopted in the industry at present have heat preservation, heat tracing and other modes, but the modes have certain defects as follows: (1) the heat preservation can be realized when the outdoor temperature is high, but the heat preservation only realizes heat insulation when the outdoor temperature is low for a long time, and the risk of freezing and cracking prevention of the pipeline cannot be solved; (2) when the heat tracing band is adopted, when the furnace is shut down and the valve of the heating pipe is opened, the temperature of the internal high-temperature medium is transmitted to the surface, the heat tracing band can be burnt, and the heat tracing band can not be normally used; (3) the mode of adopting slightly opening the valve to let the heat medium flow in dredging water drain pipe and keeping warm is the means commonly used in the outdoor waste heat power generation in north at present, and can guarantee that the dredging water is not frozen, and the pipeline is not frozen and splits, but the defect is: firstly, water flow erodes the valve, so that the valve is leaked and cannot be used; secondly, the water quantity is difficult to control, and the waste of water resources and heat resources is serious.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a visual anti-freezing system for a thermodynamic system pipeline, which aims to solve the problem of anti-freezing of the thermodynamic system pipeline arranged outdoors in the prior art.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a visual system of preventing frostbite of thermodynamic system pipeline, includes boiler, steam turbine, generator, condensate pump, oxygen-eliminating device and feed pump, the boiler passes through the pipe connection with the steam turbine, and the output shaft and the generator input shaft cooperation of steam turbine are connected, and the steam turbine passes through the pipe connection with the condensate pump, and the condensate pump passes through the pipe connection with the oxygen-eliminating device, and the oxygen-eliminating device passes through the pipe connection with the boiler, is equipped with the feed pump between the pipeline that oxygen-eliminating device and boiler are connected, be equipped with drainage system on the pipeline between water pump and the boiler, drainage system includes first valve and third valve, first valve and third valve are located drainage system's pipeline, there is the instrument valve the entrance of third valve through the pipe connection, the export end of instrument valve is equipped with the basin, the outlet and the drainage channel of basin are connected.

Preferably, the connecting pipeline between the inlet of the third valve and the instrument valve is DN15 PN16 seamless pipe, and the instrument valve is DN15 PN16 stainless steel instrument valve.

Preferably, the outlet of the first valve is provided with a second valve in parallel, and the outlet of the third valve is provided with a fourth valve in parallel.

The utility model has the beneficial effects that:

(1) the utility model discloses a visual drainage system that has set up by valve and basin to make up on the pipeline of heating power system, the flow of its valve pipeline internal water can prevent the whole heating power system pipeline from being frozen, the combination of valve and basin simultaneously, can see directly perceivedly whether the pipeline internal water flows and judges whether the pipeline is frozen, its simple structure, the very good frost-proof problem of heating power system pipeline of having solved;

(2) the utility model discloses a pipeline that instrument valve and installation instrument valve used DN15 PN16 seamless pipe and DN15 PN16 stainless steel instrument valve respectively, and when its seamless pipe can better be connected, this model size pipeline and instrument valve can be fine control rivers, practices thrift the water source, and the use that simultaneously can reduce other main valves with its instrument valve control rivers has played the effect of protection main valve;

(3) the two main valves are additionally arranged in parallel, so that the function of safety can be achieved, and one valve is easily extruded and damaged by water flow pressure.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the drainage system of FIG. 1;

in the figure: 1. the system comprises a boiler, a steam turbine 2, a generator 3, a condensate pump 4, a deaerator 5, a water supply pump 6, a drainage system 7, a first valve 8, a second valve 9, a third valve 10, a fourth valve 11, an instrument valve 12, a water tank 13 and a drainage channel 14.

Detailed Description

The utility model is further described with reference to the accompanying drawings and working process:

as shown in fig. 1 and 2, the visual antifreeze system for thermodynamic system pipelines comprises a boiler 1, wherein the boiler 1 is connected with a steam turbine 2 through a pipeline, an output shaft of the steam turbine 2 is connected with an input shaft of a generator 3 in a matching way, the steam turbine 2 is connected with a condensate pump 4 through a pipeline, the condensate pump 4 is connected with a deaerator 5 through a pipeline, the deaerator 5 is connected with the boiler 1 through a pipeline, a water feeding pump 6 is arranged between the deaerator 5 and the boiler 1, a drainage system 7 is arranged on the pipeline between the water pump 6 and the boiler 1, the drainage system 7 comprises a first valve 8 and a third valve 10, the first valve 8 and the third valve 10 are arranged on the pipeline of the drainage system 7, an instrument valve 12 is connected to the inlet of the third valve 10 through a pipeline, the pipeline connecting the inlet of the third valve 10 with the instrument valve 12 is a DN15 PN16 seamless pipe, the instrument valve 12 is a DN15 PN16 stainless steel instrument valve, the tail end of the outlet of the instrument valve 12 is provided with a water tank 13, a water outlet of the water tank 13 is connected with a water drainage channel 14, the flow of water in a valve pipeline can prevent the pipeline of the whole thermodynamic system from being frozen, and meanwhile, the combination of the valve and the water tank can visually see whether the water in the pipeline flows to judge whether the pipeline is frozen. The outlet of the first valve 8 is provided with a second valve 9 in parallel, the outlet of the third valve 10 is provided with a fourth valve 11 in parallel, each main valve is provided with two functions to play a role in safety, and one main valve is easily extruded and damaged by water flow pressure.

When the device is used, the boiler 1 conducts preheating to the steam turbine 2, the steam turbine 2 utilizes the steam to generate power by the generator 3, the used steam is cooled by the condensate pump 4, the condensed water is deoxidized by the deaerator 5 and then is transmitted to the boiler 1 by the feed pump 6 for reuse, a core in the visual anti-freezing system is arranged between the water pump 6 and the boiler 1, for the drainage system 7, the drainage system 7 consists of a first valve 8 and a third valve 10, an instrument valve 12 arranged at the inlet of the third valve 10 and a water tank 13 arranged below the instrument valve 12, when the water in the instrument valve 12 flows to the water tank 13, the water can be visually observed artificially, the visual effect is achieved, the water in the valve pipeline can be prevented from being frozen, meanwhile, the combination of the valve and the water tank can visually observe whether the water in the pipeline flows to judge whether the pipeline is frozen or not, the anti-freezing device is simple in structure, and well solves the problem of anti-freezing of the thermodynamic system pipeline.

Claims (3)

1. The utility model provides a visual system of preventing frostbite of thermodynamic system pipeline, includes boiler (1), steam turbine (2), generator (3), condensate pump (4), oxygen-eliminating device (5) and feed pump (6), boiler (1) and steam turbine (2) pass through the pipe connection, and the output shaft and the generator (3) input shaft cooperation of steam turbine (2) are connected, and steam turbine (2) and condensate pump (4) pass through the pipe connection, and condensate pump (4) and oxygen-eliminating device (5) pass through the pipe connection, and oxygen-eliminating device (5) and boiler (1) pass through the pipe connection, are equipped with feed pump (6) between the pipeline that oxygen-eliminating device (5) and boiler (1) are connected, be equipped with drainage system (7) on the pipeline between water pump (6) and boiler (1), its characterized in that: dredge drainage system (7) including first valve (8) and third valve (10), first valve (8) and third valve (10) are located the pipeline of dredging drainage system (7), there is instrument valve (12) at the entrance of third valve (10) through the pipe connection, the export end of instrument valve (12) is equipped with basin (13), the outlet and the drainage channel (14) of basin (13) are connected.

2. The visual antifreeze system for thermodynamic system pipelines as claimed in claim 1, wherein: the inlet of the third valve (10) and the connecting pipeline of the instrument valve (12) are DN15 PN16 seamless pipes, and the instrument valve (12) is a DN15 PN16 stainless steel instrument valve.

3. The visual antifreeze system for thermodynamic system pipelines as claimed in claim 1, wherein: and a second valve (9) is arranged at the outlet of the first valve (8) side by side, and a fourth valve (11) is arranged at the outlet of the third valve (10) side by side.

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