CN211215506U

CN211215506U - Anti-suck-back condensation tank

Info

Publication number: CN211215506U
Application number: CN201921593927.5U
Authority: CN
Inventors: 陈涛; 舒茂林; 汤绍富; 尚凡杰
Original assignee: Zhejiang Fuchunjiang Environmental Technology Research Co ltd
Current assignee: Zhejiang Fuchunjiang Environmental Technology Research Co ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-08-11
Anticipated expiration: 2029-09-24

Abstract

The utility model discloses a prevent suck-back condensate tank relates to flue gas condensing equipment. Comprises a large tank body and a small tank body; the small tank body is fixedly arranged in the large tank body and shares a top plate with the large tank body, an inner cavity is arranged in the small tank body, the large tank body and the small tank body are surrounded to form an outer cavity, and the volume of the inner cavity is larger than that of the outer cavity; the top of the inner cavity is provided with an air inlet, the bottom or the side surface of the inner cavity is provided with an air duct which is communicated with the inner cavity and the outer cavity, and the top of the outer cavity is provided with an air outlet. The utility model discloses can prevent that rivers from receiving the effect of suck-back and getting into the sampling pipeline to protection front end detecting instrument's safety.

Description

Anti-suck-back condensation tank

Technical Field

The utility model relates to a flue gas condensing equipment especially relates to a prevent suck-back condensation jar.

Background

The dioxin on-line monitoring system has certain requirements on the sampling flow rate when detecting the content of dioxin in flue gas, and a mass flowmeter is required to control the flow. The mass flow meter needs to prevent gas from entering at high temperature, high humidity and the like when in use, otherwise the flow meter can be damaged. It is therefore necessary to cool the flue gas and remove the water before it enters the mass flow meter. The current common method is that 2 gas washing bottles are connected in series at the front end of a mass flow meter, a certain amount of water is filled in the first gas washing bottle, and flue gas can be rapidly cooled after passing through the water. Part of the water vapor is liquefied in the gas washing bottle when meeting cold and is left in the gas washing bottle. The rest of the flue gas enters a 2 nd gas washing bottle filled with materials with adsorbability, such as molecular sieves or allochroic silica gel. After the flue gas enters the gas washing bottle, liquid water is adsorbed, and part of steam can be adsorbed, so that the flue gas entering the flowmeter is dry low-temperature flue gas.

When the method stops sampling, the gas washing bottle is required to be disconnected with the sampling pipeline, the gas inlet end of the 1 st gas washing bottle is ensured to be in a normal pressure state, and then the sampling pump is closed. Otherwise, because of long-time sampling, the front end sampling pipeline is in a negative pressure state, once the sampling pump stops working, air enters the gas washing bottle from the sampling pump, water in the gas washing bottle flows back into the sampling pipeline, and then flows into the detection instrument, so that the instrument is damaged. In addition, even if the gas washing bottle and the sampling pipeline are disconnected at first, if the gas washing bottle is full of water, the water can be directly sprayed into the 2 nd gas washing bottle, and the adsorbent is caused to lose efficacy.

The moisture content in the flue gas is relatively large, and partial water vapor in the flue gas is liquefied into water and stays in the scrubbing cylinder after passing through the 1 st scrubbing cylinder, so that the water level in the scrubbing cylinder continuously rises. Therefore, the water in the gas washing bottle needs to be poured out frequently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent suck-back condensate tank can prevent that rivers from receiving the effect of suck-back and getting into the sampling pipeline to protection front end detecting instrument's safety.

In order to achieve the above object, the utility model provides a following technical scheme:

an anti-suck-back condensation tank is characterized by comprising a large tank body and a small tank body; the small tank body is fixedly arranged in the large tank body and shares a top plate with the large tank body, an inner cavity is arranged in the small tank body, the large tank body and the small tank body are surrounded to form an outer cavity, and the volume of the inner cavity is larger than that of the outer cavity; the top of the inner cavity is provided with an air inlet, the bottom or the side surface of the inner cavity is provided with an air duct which is communicated with the inner cavity and the outer cavity, and the top of the outer cavity is provided with an air outlet.

Furthermore, a water outlet is arranged at the bottom of the outer cavity.

Furthermore, a drain valve is arranged on the drain outlet.

Furthermore, quick plugs are arranged at the air inlet, the air outlet and the water outlet.

Furthermore, a liquid level meter is arranged on the side surface of the large tank body.

Furthermore, the level gauge is vertically arranged, two ends of the level gauge are respectively connected with the right-angle quick-connection plug, and the right-angle quick-connection plug is connected with a level gauge interface arranged on the side surface of the large tank body to form a liquid level indicating loop.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses with the jar body of two different volumes with embedded form welding together, the flue gas is earlier through the less jar body of volume (inner chamber) during use, discharges through the great jar body of volume (exocoel) again, and the cooling water storage is internal in the jar of great volume, and the less jar of volume remains anhydrous state throughout. When sampling is stopped, atmospheric pressure presses water into the tank body with smaller volume. Because the inner cavity volume is greater than the outer cavity volume, all water can not enter the sampling pipeline even if entering the tank body with smaller volume, thereby protecting the safety of a front-end detection instrument.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a front view of an embodiment of the present invention.

Fig. 3 is a side view of an embodiment of the present invention.

Fig. 4 is a cross-sectional view of an embodiment of the present invention.

In the figure: 1. a large tank body; 11. an air outlet; 111. a first quick connect plug; 12. a water outlet; 121. a drain valve; 122. a second quick connect plug; 13. a liquid level meter; 131. an upper right-angle quick-connection plug; 132. a lower right-angle quick-connect plug; 133. an upper level meter interface; 134. a lower level gauge interface; 2. a small tank body; 21. an air inlet; 211. a third quick connect plug; 22. an air duct; 3. an inner cavity; 4. an outer cavity.

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

Referring to fig. 3 and 4, the utility model provides a suck-back prevention condensation tank, including a big tank body 1 and a small tank body 2, the small tank body 2 is fixedly installed in the big tank body 1 and shares the roof with the big tank body 1. The inner part of the small tank body 2 is an inner cavity 3, the large tank body 1 and the small tank body 2 are enclosed to form an outer cavity 4, the volume of the inner cavity 3 is larger than that of the outer cavity 4, namely the volume of the small tank body 2 is larger than one half of that of the large tank body 1. The top of the inner cavity 3 is provided with an air inlet 21, the bottom of the inner cavity 3 is provided with an air duct 22 communicating the inner cavity 3 and the outer cavity 4, and the top of the outer cavity 4 is provided with an air outlet 11. It should be noted that, in other embodiments, the installation position of the air duct 22 may also be the side of the inner cavity 3, which is responsible for communicating the inner cavity 3 and the outer cavity 4.

When the device is used, the gas outlet 11 is connected with a sampling pump, the gas inlet 21 is connected with a sampling pipeline of a detection instrument, a certain amount of water is added into a condensation tank, the total volume of the water amount cannot be larger than the volume of the inner cavity 3, and the water level cannot be lower than the bottom end of the gas guide tube 22. At the beginning, water is filled in the inner cavity 3 and the outer cavity 4, then the sampling pump pumps the air of the outer cavity 4, at the moment, the pressure of the inner cavity 3 is greater than that of the outer cavity 4, and the water in the inner cavity 3 is completely pressed into the outer cavity 3. Then the smoke to be cooled enters the outer cavity 4 through the air duct 22, is cooled by the water in the outer cavity 4 and then is discharged from the air outlet 11. When the sampling pump stops working, water in the outer cavity 4 is sucked into the inner cavity 3, but the volume of the inner cavity 3 is enough to contain all water, so that the water cannot be sucked into the sampling pipeline from the air inlet 21, and the water is prevented from flowing into the detection instrument to damage the instrument.

As the flue gas contains moisture, the water amount in the condensation tank can be gradually increased along with the condensation. In order to avoid that the water quantity is increased to be larger than the volume of the inner cavity 3 so as to influence the suck-back prevention effect. Referring to fig. 2 and 4, a drain port 12 is provided at the bottom of the outer chamber 4 to allow for water drainage at variable times. The drain outlet 12 is provided with a drain valve 121, and water can be drained when the drain valve 121 is opened. It should be noted that, in order to facilitate the connection of the opening, quick plugs are disposed at the air inlet 21, the air outlet 11 and the water outlet 12. Specifically, a third quick-connection plug 211 with the model of PC6-02 (which can be changed according to actual use conditions) is arranged at the air inlet 21; a first quick-connection plug 111 with the model of PC6-02 (which can be changed according to actual use conditions) is arranged at the air outlet 11; a second quick connector 122, model PC6-02 (which can be changed according to actual use), is provided at the drain opening 12.

In order for the staff to know the water level in the condensation tank all the time, the side of the large tank body 1 is provided with a liquid level meter 13. Specifically, referring to fig. 1 to 3, the liquid level meter 13 is vertically arranged, and two ends of the liquid level meter 13 are respectively connected with a right-angle quick-connection plug, which includes an upper right-angle quick-connection plug 131 (model PL06-02) and a lower right-angle quick-connection plug 132 (model PL 06-02). The upper right-angle quick connector 131 is connected with an upper liquid level meter interface 133 arranged on the side surface of the large tank body 1, and the lower right-angle quick connector 132 is connected with a lower liquid level meter interface 134 arranged on the side surface of the large tank body 1. Go up level gauge interface 133, go up right angle and connect plug 131, level gauge 13, lower right angle and connect plug 132 soon, down level gauge interface 134 and exocoel 4 constitution liquid level indication return circuit, make things convenient for the staff to observe the water level in the condensation jar constantly, the opportunity of accuse drainage.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An anti-suck-back condensation tank is characterized by comprising a large tank body and a small tank body; the small tank body is fixedly arranged in the large tank body and shares a top plate with the large tank body, an inner cavity is arranged in the small tank body, the large tank body and the small tank body are surrounded to form an outer cavity, and the volume of the inner cavity is larger than that of the outer cavity; the top of the inner cavity is provided with an air inlet, the bottom or the side surface of the inner cavity is provided with an air duct which is communicated with the inner cavity and the outer cavity, and the top of the outer cavity is provided with an air outlet.

2. The suck-back prevention condensation tank as claimed in claim 1, wherein a water outlet is provided at the bottom of the outer chamber.

3. The suck back prevention condensation tank as claimed in claim 2, wherein a drain valve is provided on the drain port.

4. The suck-back prevention condensation tank as claimed in claim 3, wherein quick plugs are provided at the air inlet, the air outlet and the water outlet.

5. The suck-back prevention condensation tank is characterized in that a liquid level meter is arranged on the side surface of the large tank body.

6. The anti-suck-back condensation tank as claimed in claim 5, wherein the liquid level meter is vertically arranged, two ends of the liquid level meter are respectively connected with a right-angle quick-connection plug, and the right-angle quick-connection plug is connected with a liquid level meter interface arranged on the side surface of the large tank body to form a liquid level indicating loop.