CN202901845U

CN202901845U - Draining system of steam pipe system

Info

Publication number: CN202901845U
Application number: CN 201220650183
Authority: CN
Inventors: 梅文豹; 王秀丽
Original assignee: RIZHAO GREEN WATT ENERGY TECHNOLOGY Co Ltd
Current assignee: RIZHAO GREEN WATT ENERGY TECHNOLOGY Co Ltd
Priority date: 2012-12-02
Filing date: 2012-12-02
Publication date: 2013-04-24
Anticipated expiration: 2022-12-02

Abstract

The utility model discloses a draining system of a steam pipe system, which belongs to draining devices. The draining system comprises a steam pipeline, a drain pipe and a drain valve. The draining system is characterized by further comprising a water collecting pipe and a water collecting tank, wherein the water collecting pipe is vertically arranged below the steam pipeline, and the upper end opening of the water collecting pipe is communicated with the inside of the steam pipeline; a port is formed in the side wall of the water collecting pipe and connected with the drain valve through the drain pipe; and the lower end opening of the water collecting pipe is connected with the water collecting tank. Compared with the prior art, the pipe system delivery capability is increased, the steam dryness and quality are also improved, and the steam pipe system is more energy-saving.

Description

The steam pipe system draining system

Technical field

The utility model relates to a kind of steam trap connection, particularly a kind of draining system that is applicable to steam pipe system.

Background technique

The steam heat capacity is large, heat-transfer coefficient is high, be widely used in oil, petrochemical industry, chemical industry, papermaking, brewage, the top quality secondary energy in the field such as tobacco, iron and steel, medicine, packing, machinery, electronics.It is drain valve condensate drain resistance vapour that steam thermal system keeps the important step of high-efficiency operation.At present draining system is set up and mostly is steam pipework and is connected condensate drain with drain valve and connects, and finishes drain valve discharging condensed water, discharged air and keeps the effect of steam here.

But in the practical operation, often there be hydrophobic bad pipe network water attack, crushing is large, steam moisture is large, steam quality the is low phenomenon of causing in steam pipe system.

Its reason is: steam line has part steam owing to radiation, dissipation loss condense into water, the pipes of the good insulation of 200 millimeters of internal diameters for example, vapor pressure is 7Bar, when temperature is 10 ℃ on every side, 30 meters long tube about 40kg steam that per hour will condense, after this means 2 hours 80kg water is arranged, the rest may be inferred, and quantity is surprising.Only directly select the condensate drain size according to the connection mouth of drain valve in the present design, cause condensate drain too thin, condensate drain all can not make water of condensation all " subsideing " and discharge on " span " and " width ", a large amount of water of condensation are sent to the downstream, and gather at the sagging low spot of any pipeline, form water piece (the about 2m/s of flow velocity); When moving with steam, the water piece is accelerated to the flow velocity (about 30m/s) of steam; If the water piece is swerved, then the kinetic energy in the water is released, and causes the noise and vibration that strong similar pipeline is knocked, and is referred to as water attack.Local compression can reach 900 times of vapor pressure when water attack occured, and became the major hidden danger of pipeline safety.

Outside this water attack, existing another defective of draining system is: owing to hydrophobicly be the low spot of whole pipeline or end, the foreign material that be mixed with in the steam pipework this moment, mainly be the iron filings that inner tube wall is peeled off, finally can enter drain valve by condensate drain, cause stopping up drain valve, and finally cause the paralysis of whole steam trap connection.

The model utility content

Technical assignment of the present utility model is for above the deficiencies in the prior art, and a kind of safe, efficient steam pipe system draining system is provided.

The technical scheme in the invention for solving the technical problem is: a kind of steam pipe system draining system, comprise steam pipework, drain pipe and drain valve, and it is characterized in that: also comprise collector pipe and collecting annulus; Described collector pipe vertically is arranged on the steam pipework below, and the collector pipe upper end-hole is connected with steam pipework inside; Described collector pipe sidewall has interface to connect drain valve by drain pipe; Described collector pipe lower end mouth connects collecting annulus.

Above-mentioned drain pipe and level have angle, and the collector pipe outlet end is lower than the drain valve entry end.

Above-mentioned collecting annulus bottom is equipped with magnetic material.

In the preferred version, also comprise bypass valve, bypass valve and described drain valve are in parallel.

Compared with prior art, the utlity model has following outstanding beneficial effect:

1, the utility model guarantees that the pipe network water of condensation subsides fully, has both improved the pipe network transmittability, has improved again steam quality and quality, makes steam pipe system more energy-conservation;

2, can carry out sedimentation to impurity in steam or the condensed water, guarantee that drain valve can not stop up, prolong drain valve working life.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Embodiment

Below in conjunction with specification drawings and specific embodiments the utility model is further specified.

As shown in Figure 1, the utility model comprises steam pipework 1, collector pipe 2, collecting annulus 3, drain pipe 4 and drain valve 5, and described collector pipe 2 vertically is arranged on steam pipework 1 below, and collector pipe 2 upper end-hole are connected with steam pipework 1 inside; Described collector pipe 2 sidewalls have interface to pass through drain pipe 4 connection drain valves 5; Described collector pipe 2 lower end mouth connect collecting annulus 3.

Drain pipe 4 has angle with level, and collector pipe 2 outlet end are lower than drain valve 5 entry ends.

In order better to remove iron tramp, in collecting annulus 3 bottoms magnetic material 6 is installed.

Also comprise bypass valve 7, bypass valve and drain valve are in parallel, rise and reach the balance sysmte pressure-acting, help to strengthen Security.

During use, because the diameter of collector pipe 2 is larger, guarantee that the pipe network water of condensation subsides fully, both improved the pipe network transmittability, improved again steam quality and quality.

Simultaneously, because collecting annulus 3 is arranged, then sneak into impurity in the water of condensation along with water of condensation falls in the collecting annulus 3, owing to action of gravitation rests on bottom land, collector pipe 2 outlet end are lower than drain valve 5 entry ends and cause drain pipe 4 that a little up gradient is arranged, and more help impurity to fall collecting annulus 3 after rise.And the fine impurities gravity sedimentation effects such as scum that tube wall comes off are poor, at this moment, in collecting annulus 3 bottoms magnetic material 6 are installed, and by magnetic attraction, impel the iron tramp deposition.

Need to prove; particular of the present utility model is described in detail the utility model; for a person skilled in the art, in the various apparent change of in the situation that does not deviate from spirit and scope of the present utility model it being carried out all within protection domain of the present utility model.

Claims

1. a steam pipe system draining system comprises steam pipework, drain pipe and drain valve, it is characterized in that: also comprise collector pipe and collecting annulus; Described collector pipe vertically is arranged on the steam pipework below, and the collector pipe upper end-hole is connected with steam pipework inside; Described collector pipe sidewall has interface to connect drain valve by drain pipe; Described collector pipe lower end mouth connects collecting annulus.

2. steam pipe system draining system according to claim 1 is characterized in that described drain pipe and level have angle, and the collector pipe outlet end is lower than the drain valve entry end.

3. steam pipe system draining system according to claim 1 is characterized in that described collecting annulus bottom is equipped with magnetic material.

4. steam pipe system draining system according to claim 1 characterized by further comprising bypass valve, and bypass valve and described drain valve are in parallel.