White smoke eliminator behind drain valve

Abstract

The invention relates to the technical field of heat supply equipment, and discloses a drain valve rear white smoke eliminator which comprises a condensation tank body, an increasing pipe at the upper end of the condensation tank body is connected with a drain valve outlet through a pipeline, a reducing pipe at the lower end of the condensation tank body is connected with a drain pipe, and the condensation tank body exchanges heat with the outside. A depressurization flash evaporation device is connected in the condensation tank body; according to the invention, additional cooling water is not needed for auxiliary cooling, so that the system is simplified, and the additional facility cost due to the addition of cooling water supply is saved.

Description

Technical Field

[0001] The present application relates to the technical field of heating equipment, and in particular to a white smoke eliminator after a steam trap. Background Art

[0002] In outdoor heating steam pipe systems, steam traps are installed at low points along the steam pipeline. Condensate discharged from these traps is difficult to recycle and is generally discharged locally. A normal steam trap releases condensate accompanied by clouds of white mist at a low flow rate. This "white smoke" is flash steam. This phenomenon can easily be misinterpreted as a leaking trap, creating a sense of insecurity and visually polluting the environment.

[0003] At present, in order to eliminate the phenomenon of "white smoke" from the steam trap of the heating steam pipeline, the existing technology proposes the following technical solutions:

[0004] Option 1: Install a water tank near the pipe's steam trap and drain the condensate discharged from the trap into the tank. Once the condensate mixes with the water in the tank, the temperature drops and the "white smoke" phenomenon disappears. This method ensures a constant level of water in the tank.

[0005] Option 2: An integrated condensation, demisting, and noise reduction device for steam pipe drains. This device connects the drain from the steam trap to a box-type device that is fed with cooling water and integrates condensation, demisting, and noise reduction. This method requires external cooling water and can also recycle condensed water.

[0006] However, the above-mentioned solution 1 must ensure that there is always a certain water level in the pool. Once the pool is short of water, the "white smoke" phenomenon will still occur; the above-mentioned solution 2 requires cooling water and is suitable for being able to provide cooling water, such as being arranged inside a factory building. It is not suitable for outdoor steam pipe drainage traps without cooling water supply.

[0007] Therefore, it is necessary to develop a device for eliminating "white smoke" that is simple, easy to install, does not take up space, and does not require cooling water, so as to reduce adverse environmental impacts. Summary of the Invention

[0008] The purpose of the present application is to provide a white smoke eliminator after a steam trap which has the characteristics of low cost, simple system, easy installation and small space occupation.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] The present invention provides a white smoke eliminator after a steam trap, comprising a condensing tank body, wherein a gradually expanding pipe at the upper end of the condensing tank body is connected to the outlet of the steam trap through a pipeline, a gradually contracting pipe at the lower end of the condensing tank body is connected to a drain pipe, the condensing tank body performs heat exchange with the outside, and a pressure reduction flash evaporation device is connected to the condensing tank body.

[0011] Furthermore, the pressure reduction flash evaporation device is at least one partition, a plurality of water holes are opened on the partition, and the edge of the partition is fixedly connected to the inner annular surface of the condensation tank body.

[0012] Furthermore, the pressure-reducing flash evaporation device comprises at least two partitions, a plurality of water holes are provided on the partitions, and edges of the partitions are fixedly connected to the inner annular surface of the condensation tank body.

[0013] Furthermore, the sum of the through hole areas of the plurality of water holes is smaller than the water inlet area of ​​the condensation tank body.

[0014] Furthermore, the partition is arranged horizontally.

[0015] Furthermore, the condensation tank and the connecting pipe are made of heat-conducting metal.

[0016] Furthermore, the heat-conducting metal is steel.

[0017] Furthermore, the heat-conducting metal is stainless steel.

[0018] Furthermore, the heat-conducting metal is aluminum.

[0019] Furthermore, the steel is of Q235 steel.

[0020] Furthermore, the type of the steel is 20# steel.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] The present invention does not require additional cooling water to assist cooling, thus simplifying the system and saving the facility cost that would otherwise be incurred by increasing the supply of cooling water. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the following is a brief introduction to the drawings required for use in the implementation methods. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0025] Reference numerals: condensation tank 1; steam trap 2; drain pipe 3; partition 4; water hole 5. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other unless they conflict.

[0027] In the following description, the terms "first, second, and third" are used merely as examples to distinguish between different objects and do not represent a specific order or precedence for the objects. It is understood that the specific order or precedence of "first, second, and third" can be interchanged where permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein are for the purpose of describing the embodiments of this application only and are not intended to limit this application.

[0029] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. Therefore, the drawings only show the layers related to the present invention and are not drawn according to the number, shape and size of the layers in actual implementation. In actual implementation, the type, quantity and proportion of each layer can be changed arbitrarily, and the layer layout type may also be more complicated.

[0030] In the following description, numerous details are set forth to provide a more thorough explanation of the embodiments of the present invention; however, it is apparent to one skilled in the art that the embodiments of the present invention may be practiced without these specific details.

[0031] See also Figure 1 A white smoke eliminator after a steam trap comprises a condensing tank body 1, the upper end of the condensing tank body 1 is connected to the outlet of the steam trap 2 through a pipeline with a gradually expanding tube, the lower end of the condensing tank body 1 is connected to a drain pipe 3 with a gradually contracting tube, the condensing tank body 1 performs heat exchange with the outside world, and a pressure reduction flash evaporation device is connected inside the condensing tank body 1.

[0032] See also Figure 1 The pressure reduction flash evaporation device is at least one partition 4, and multiple water holes 5 are opened on the partition 4. The edge of the partition 4 is fixedly connected to the inner annular surface of the condensation tank body 1.

[0033] See also Figure 1The pressure reduction flash evaporation device is composed of at least two partitions 4, and multiple water holes 5 are opened on the partitions 4. The edges of the partitions 4 are fixedly connected to the inner annular surface of the condensation tank body 1.

[0034] See also Figure 1 The sum of the through hole areas of the multiple water holes 5 is smaller than the water inlet area of ​​the condensation tank body 1.

[0035] See also Figure 1 , the partition 4 is arranged horizontally.

[0036] The condensation tank 1 and the connecting pipe are made of heat-conducting metal.

[0037] The heat-conducting metal is steel.

[0038] The heat-conducting metal is stainless steel.

[0039] The heat-conducting metal is aluminum.

[0040] The type of the steel is Q235 steel.

[0041] The model of the steel is 20# steel.

[0042] In actual application, the high-temperature condensate discharged from the steam trap 2 flows through the connecting pipe into the condensation tank body 1. When the condensate passes through the first partition 4, the pressure drop causes the pressure to decrease, and the liquid flashes; the flash steam contacts the tank wall of the condensation tank body 1, and the tank wall of the condensation tank body 1 exchanges heat with the outside world, so that the flash steam dissipates heat and condenses; when the condensate passes through the second partition 4, the pressure drops further, and the condensate passes downward through multiple partitions 4 in turn, the liquid flash is weakened, and the flash steam contacts the tank wall of the condensation tank body 1 to further dissipate heat and condense; the condensate is discharged through the discharge pipe connected to the tapered pipe, and when the pressure finally drops to atmospheric pressure, the environment dissipates heat to further condense the steam; finally, the flash steam is converted into condensed water, eliminating white smoke; the present invention is easy to use and does not require external cooling water.

[0043] The present invention is to complete the flash evaporation phenomenon of the water discharged after the steam trap 2 in the condenser, and through the purposeful control of multiple flash evaporation processes, the temperature of the condensed water is lowered (for example, the high-temperature water of 150°C is reduced to below 100°C), and the condensed water no longer flashes. The purpose of setting up multiple partitions 4 is to control the pressure drop, reduce the pressure multiple times, and control the flash evaporation amount to be released in multiple times, which is beneficial to the cooling of the tank wall of the condenser body 1. The material of the pipeline and the condenser body 1 needs to be metal, Q235 steel or 20# steel, or metal aluminum can also be used. Metal aluminum has good heat dissipation performance, but in high temperature, high strength or corrosion-resistant environments, steel is still a necessary choice. The entire flash evaporation and condensation process is completed in the condenser, does not affect the outdoor environment, and does not produce visual pollution. The present invention does not require additional cooling water to assist in cooling, simplifies the system, and saves the additional facility cost due to the increase in cooling water supply. The premise of the present invention is that the condensed water does not need to be recycled.

[0044] Existing white smoke elimination technology relies on mixing high-temperature drain water with cooling water after the steam trap to reduce the drain water temperature. However, in some environments, cooling water is unavailable. For example, in outdoor heating steam pipe systems, where pipes are located outdoors, cooling water is unavailable, or introducing a cooling water system increases costs. The present invention addresses these shortcomings of the existing technology. It offers low cost, a simple system, easy installation, and a compact footprint.

[0045] In the above embodiments, although the present invention has been described in conjunction with specific embodiments of the present invention, many replacements, modifications and variations of these embodiments will be apparent to those skilled in the art based on the foregoing description. The embodiments of the present invention are intended to cover all such replacements, modifications and variations that fall within the broad scope of the appended claims.

[0046] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A white smoke eliminator after a steam trap, characterized by: The invention comprises a condensation tank body (1), wherein the upper end of the condensation tank body (1) is connected to the outlet of the steam trap (2) through a pipeline through a gradually expanding pipe, the lower end of the condensation tank body (1) is connected to a drain pipe (3), the condensation tank body (1) performs heat exchange with the outside, and the condensation tank body (1) is connected to a pressure reduction flash evaporation device.

2. The white smoke eliminator after the steam trap according to claim 1, characterized in that: The pressure reduction flash evaporation device is at least one partition (4), a plurality of water holes (5) are provided on the partition (4), and the edge of the partition (4) is fixedly connected to the inner annular surface of the condensation tank body (1).

3. The white smoke eliminator after the steam trap according to claim 1, characterized in that: The pressure reduction flash evaporation device comprises at least two partitions (4), a plurality of water holes (5) are provided on the partitions (4), and the edges of the partitions (4) are fixedly connected to the inner annular surface of the condensation tank body (1).

4. A white smoke eliminator after a steam trap according to claim 2 or 3, characterized in that: The sum of the through hole areas of the plurality of water holes (5) is smaller than the water inlet area of ​​the condensation tank body (1).

5. A white smoke eliminator after a steam trap according to claim 2 or 3, characterized in that: The partition (4) is arranged horizontally.

6. The white smoke eliminator after the steam trap according to claim 1, characterized in that: The condensation tank (1) and the connecting pipe are made of heat-conducting metal.

7. The white smoke eliminator after the steam trap according to claim 6, characterized in that: The heat-conducting metal is steel.

8. The white smoke eliminator after the steam trap according to claim 6, characterized in that: The heat-conducting metal is aluminum.

9. The white smoke eliminator after the steam trap according to claim 7, characterized in that: The type of the steel is Q235 steel.

10. The white smoke eliminator after the steam trap according to claim 7, characterized in that: The model of the steel is 20# steel.

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