Novel efficient self-cleaning dehumidifying cold cavity

Abstract

The utility model discloses a novel efficient self-cleaning dehumidification cold cavity, which comprises a main body unit and a purification treatment unit, the main body unit comprises a cold cavity shell, a cold cavity main body is arranged in the cold cavity shell, the top end of the cold cavity main body is provided with a sample gas inlet and a sample gas outlet, and the sample gas inlet is used for introducing unpurified sample gas; the sample gas outlet is used for discharging the sample gas purified by the self-purification treatment unit; the core of the purification treatment unit is a corona electrode arranged in the cold cavity main body; the corona electrode is tightly connected with a high-voltage power supply through a wire, so that a strong high-voltage electric field is constructed in the cold cavity main body; the electric field has strong adsorption force, can efficiently capture particulate matters in the sample gas, promotes water vapor in the sample gas to be quickly condensed into liquid water, and adsorbs and gathers viscous substances such as tar together, so that moisture and impurities originally dispersed in the sample gas are effectively converted into waste liquid which is easy to discharge; the problem that a traditional device is prone to being blocked is solved, and self-cleaning of equipment is achieved.

Description

Technical Field

[0001] This utility model relates to the field of flue gas treatment technology, and in particular to a novel high-efficiency self-cleaning dehumidifying cold cavity. Background Technology

[0002] The flue gas emitted from coke ovens and chemical plants has a complex composition, with high levels of liquid water and tar byproducts. Traditionally, online monitoring systems and instruments heat the sample gas to 120-180 degrees Celsius during the extraction process to prevent the loss of other components (such as SO2, NO, HCl, HF, etc.). However, the heated sample gas does not completely remove the liquid water and tar byproducts. These substances, upon entering the instruments, can corrode pretreatment components and clog flow paths, leading to system and pretreatment malfunctions and severely impacting the normal operation of the equipment.

[0003] To address this issue, the most common solution in China for removing liquid water (including tar) is to use a condenser. For example... Figure 2 As shown, this type of condenser is typically designed as a two-stage filtration system, including a glass cold chamber, compressor, cooling pipes, and thermostat. Its working principle involves using the compressor to pressurize the refrigerant, which is then rapidly released through a variable-diameter pipe to provide cooling to the cooling pipes. The thermostat controls the cooling capacity to ensure the sample gas is adequately cooled within the glass cold chamber. After cooling, liquid water is discharged from below.

[0004] However, this condensation-based dehydration method has several drawbacks. First, its dehydration efficiency is low, and the pipelines are easily clogged by tar and dust. Second, for gases that are easily soluble in water (such as sulfur dioxide, ammonia, nitrogen dioxide, and hydrogen chloride), this method exhibits significant adsorption, leading to the loss of sample components and affecting the accuracy of the instrument's analysis. Furthermore, the heated sample gas condenses rapidly during pre-cooling, easily causing blockages and corrosion of the instrument's flow path. Simultaneously, the cold-cavity dehydration method has almost no dust removal capability; dust-containing sample gas mixtures entering the cold cavity easily cause blockages, and once blocked, they cannot be cleaned, requiring component replacement. This not only increases consumable costs but also raises maintenance costs.

[0005] In summary, existing technologies for treating liquid water and tar byproducts in coke oven and chemical plant exhaust gases suffer from low efficiency, susceptibility to clogging, loss of sample components, and high maintenance costs. Therefore, there is an urgent need for a novel, highly efficient self-cleaning dehumidification cold chamber technology to address these shortcomings of existing technologies. Utility Model Content

[0006] The purpose of this part is to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part and the abstract of the specification and the title of the application in order to avoid obscuring the purpose of this part, the abstract of the specification and the title of the application, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0007] Therefore, in order to solve the above technical problems, the present application provides the following technical scheme: A novel efficient self-cleaning dehumidification cold cavity, comprising a main unit and a purification treatment unit, wherein the core of the purification treatment unit is a corona pole arranged in the cold cavity main body. The corona pole is closely connected with the high-voltage power supply through a wire, thereby constructing a powerful high-voltage electric field in the cold cavity main body; this electric field not only has strong adsorption force and can efficiently capture particulate matters in sample gas, but more importantly, it can also promote water vapor in the sample gas to rapidly condense into liquid water, and adsorb and gather viscous substances such as tar, so that the water and impurities originally dispersed in the sample gas are effectively converted into waste liquid which is easy to discharge;

[0008] The main unit comprises a cold cavity shell, a cold cavity main body is arranged in the cold cavity shell, a sample gas inlet is arranged at the top end of the cold cavity main body for introducing uncleaned sample gas; a sample gas outlet is arranged on one side of the cold cavity main body for discharging sample gas purified by the self-purification treatment unit; a liquid discharge port is arranged at the bottom of the cold cavity main body for discharging condensed waste liquid, and the waste liquid comprises liquid water and impurities such as tar and particulate matter;

[0009] The purification treatment unit comprises a corona pole arranged in the cold cavity main body, the corona pole is connected with a wire, the wire is used for being connected with a high-voltage power supply, high-voltage electricity is introduced through the wire, so that the corona pole and the cold cavity shell form a high-voltage electric field in the cold cavity main body, efficiently adsorb and collect impurities in the flue gas sample introduced by the sample gas inlet, and promote water vapor in the sample gas to condense into liquid water.

[0010] As a preferred scheme of the novel efficient self-cleaning dehumidification cold cavity, the purification treatment unit further comprises an insulating mounting cover, the insulating mounting cover is arranged at the top end of the cold cavity shell, the top end of the corona pole is arranged in the insulating mounting cover, and the insulating mounting cover is used for providing reliable positioning for the corona pole.

[0011] As a preferred scheme of the novel efficient self-cleaning dehumidification cold cavity, the sample gas outlet is obliquely arranged at one side of the top end of the insulating mounting cover, a sealing gasket is arranged between the insulating mounting cover and the cold cavity shell, and the sealing gasket is used for realizing sealing between the insulating mounting cover and the cold cavity shell.

[0012] As a preferred scheme of the novel high-efficiency self-cleaning dehumidification cold cavity, the sample gas inlet is arranged corresponding to the position of the corona pole, and the sample gas inlet is located directly above the corona pole, so that when the sample gas enters from the sample gas inlet, it directly enters the key area where the corona pole is located, which is beneficial to the full contact of the sample gas with the electric field generated by the corona pole; when the high-voltage power supply connected with the corona pole is turned on, the corona pole generates corona discharge, so that the sample gas molecules or particulate matters flowing through are rapidly charged.

[0013] As a preferred scheme of the novel high-efficiency self-cleaning dehumidification cold cavity, under the action of the high-voltage electric field, the particulate matters and tar in the sample gas are polarized and adsorbed on the inner wall of the corona pole or the cold cavity main body, and the water vapor in the sample gas is condensed into liquid water due to the action of the electric field, and the impurities and the condensed water droplets subsequently fall along the inner wall of the cold cavity main body under the joint action of the electric field force and gravity, and are finally discharged through the liquid discharge port.

[0014] As a preferred scheme of the novel high-efficiency self-cleaning dehumidification cold cavity, the high-voltage electric field is formed by the corona pole and the cold cavity shell, and through the precise cooperation of the high-voltage power supply and the electric field structure, a strong high-voltage electrostatic field is generated. This electric field efficiently and completely separates the solid, liquid and mixed pollutants in the mixed sample. At the same time, the impurities such as tar and liquid water in the sample gas are condensed into waste liquid under the action of the electric field and are smoothly discharged through the liquid discharge port, thereby realizing the deep purification of the sample gas and the automatic discharge function of the waste liquid.

[0015] The beneficial effects of the present application are as follows:

[0016] 1. The high-voltage electric field formed by the corona pole and the cold cavity shell efficiently and completely separates the solid, liquid and mixed pollutants in the mixed gas (flue gas sample gas); this electric field structure design not only effectively removes the small particulate matters and tar in the gas, but also condenses them into waste liquid and smoothly discharges them, thereby realizing the deep purification of the gas. Compared with other water removal devices (condensers, gas-liquid separators, high-molecular-membrane dryers), the water removal efficiency is high.

[0017] 2. Under the action of the high-voltage electric field, the impurities in the flue gas sample gas are polarized and adsorbed on the inner wall of the cold cavity main body, and then slowly fall along the inner wall and condense into waste liquid and are discharged; this process not only avoids the problem of easy blockage of the traditional device, but also realizes the self-cleaning function of the equipment, greatly reducing the maintenance cost.

[0018] 3. The overall structure of the present application is compact, the connection between the components is tight and reliable; at the same time, the use of insulating mounting cover and sealing gasket ensures the stability and sealing performance of the electric field structure, so that the equipment is more stable and reliable during operation. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings. Among them:

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0021] Figure 2 It is a schematic diagram of the prior art structure.

[0022] In the figure: 100, main unit; 101, cold cavity shell; 102, cold cavity main body; 103, sample gas inlet; 104, sample gas outlet; 105, liquid discharge port;

[0023] 200, purification treatment unit; 201, corona electrode; 202, wire; 203, insulating mounting cover; 204, sealing gasket. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0025] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0026] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0027] Thirdly, the present application is described in detail in conjunction with the schematic diagram, and in order to facilitate the description, the sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present application. In addition, three-dimensional spatial dimensions including length, width and depth should be included in actual manufacture.

[0028] Reference Figure 1The utility model provides a novel high -efficient self -cleaning dehumidification cold cavity, including main unit 100 and purification treatment unit 200,

[0029] The main unit 100 includes the cold cavity shell 101, is equipped with the cold cavity main body 102 in the cold cavity shell 101, the top end of cold cavity main body 102 is arranged with sample gas inlet 103, is used to introduce the sample gas that is not purified, sample gas inlet 103 is arranged with the position corresponding of corona pole 201, sample gas inlet 103 is located directly above corona pole 201, so that when sample gas enters from sample gas inlet 103, directly enters the key area of corona pole 201, so that when the high voltage power supply connected with corona pole 201 is opened, corona pole 201 generates corona discharge, and the sample gas molecules or particulate matters passing through are rapidly electrified, one side of the cold cavity main body 102 is arranged with sample gas outlet 104, is used to discharge the sample gas after the purification of self -purification treatment unit 200, the bottom of the cold cavity main body 102 is arranged with liquid discharge port 105, is used to discharge the condensation waste liquid, and the waste liquid includes liquid water and tar, particulate matters and other impurities,

[0030] The purification treatment unit 200 includes the corona pole 201 arranged in the cold cavity main body 102, and the corona pole 201 is connected with the wire 202, and the wire 202 is used to be connected with the high voltage power supply, and the high voltage is introduced through the wire 202, so that the corona pole 201 and the cold cavity shell 101 form a high voltage electric field in the cold cavity main body 102,

[0031] The purification treatment unit 200 further includes the insulating installation cover 203, the insulating installation cover 203 is arranged at the top end of the cold cavity shell 101, the top end of the corona pole 201 is arranged in the insulating installation cover 203, and the insulating installation cover 203 is used for providing reliable positioning for the corona pole 201, the sample gas outlet 104 is arranged on one side of the top end of the insulating installation cover 203, and the sealing pad 204 is arranged between the insulating installation cover 203 and the cold cavity shell 101, for sealing between the insulating installation cover 203 and the cold cavity shell 101.

[0032] In the embodiment: in use, the uncleaned flue gas sample gas enters the inside of the cold cavity main body 102 through the sample gas inlet 103, the high-voltage power supply is connected with the corona electrode 201 through the lead wire 202, so that the corona electrode 201 and the cold cavity shell 101 form a high-voltage electric field in the cold cavity main body 102; when the high-voltage power supply is turned on, the corona electrode 201 generates corona discharge, so that the sample gas molecules or particulate matters flowing through are rapidly charged; under the action of the high-voltage electric field, the particulate matters and the tar in the sample gas are polarized and adsorbed on the corona electrode 201 or the inner wall of the cold cavity main body 102, and the water vapor in the sample gas is condensed into liquid water due to the action of the electric field; under the joint action of the electric field force and the gravity, the impurities and the condensed water droplets fall along the inner wall of the cold cavity main body 102, and the impurities such as the tar and the liquid water in the sample gas are condensed into waste liquid under the action of the electric field, and are smoothly discharged through the liquid discharge port 105, so that the deep purification of the sample gas and the automatic discharge function of the waste liquid are realized, and the clean sample gas after separation and purification flows out from the sample gas outlet 104 for subsequent use or analysis.

[0033] The utility model has efficient dehumidification, deep purification and self-cleaning advantages, and is suitable for various application scenes requiring high-purity gas, such as flue gas analysis, environmental monitoring, chemical production and the like.

[0034] It is worth noting that: the whole device is controlled by the controller, and since the controller is a commonly used device, it belongs to the existing mature technology, and the electrical connection relationship and the specific circuit structure are not described here.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model and are not limited, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the utility model, and they should be covered in the scope of the claims of the utility model.

Claims

1. A novel high efficient self-cleaning dehumidification cold chamber, characterized in that: The main unit (100) and the purification treatment unit (200) are included. The main unit (100) includes a cold cavity shell (101), and a cold cavity body (102) is arranged in the cold cavity shell (101). The top end of the cold cavity body (102) is provided with a sample gas inlet (103) for introducing uncleaned sample gas. One side of the cold cavity body (102) is provided with a sample gas outlet (104) for discharging sample gas purified by the self-purification treatment unit (200). The bottom of the cold cavity body (102) is provided with a liquid discharge port (105) for discharging condensed waste liquid. The purification treatment unit (200) includes a corona electrode (201) arranged in the cold cavity body (102). The corona electrode (201) is connected with a wire (202) for being connected with a high-voltage power supply. The high-voltage power is introduced through the wire (202) to form a high-voltage electric field in the cold cavity body (102) between the corona electrode (201) and the cold cavity shell (101), efficiently adsorbs and collects impurities in the flue gas sample introduced by the sample gas inlet (103), and promotes the water vapor in the sample gas to condense into liquid water.

2. The novel high efficient self-cleaning dehumidification cold chamber as claimed in claim 1, wherein: The purification treatment unit (200) further includes an insulating mounting cover (203) arranged at the top end of the cold cavity shell (101). The top end of the corona electrode (201) is arranged in the insulating mounting cover (203) for providing positioning for the corona electrode (201).

3. The novel high efficient self-cleaning dehumidification cold chamber as claimed in claim 2, characterized in that: The sample gas outlet (104) is arranged obliquely at one side of the top end of the insulating mounting cover (203). A sealing gasket (204) is arranged between the insulating mounting cover (203) and the cold cavity shell (101) for sealing between the insulating mounting cover (203) and the cold cavity shell (101).

4. The novel high efficient self-cleaning dehumidification cold chamber as claimed in claim 1, wherein: The sample gas inlet (103) is arranged corresponding to the position of the corona electrode (201). The sample gas inlet (103) is located directly above the corona electrode (201) so that the sample gas directly contacts the electric field generated by the corona electrode (201) when the sample gas enters from the sample gas inlet (103). When the high-voltage power supply connected with the corona electrode (201) is turned on, the corona electrode (201) generates corona discharge to rapidly charge the sample gas molecules or particulate matters passing through.

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