CN211445646U

CN211445646U - Dehydration demercuration equipment

Info

Publication number: CN211445646U
Application number: CN201922382728.6U
Authority: CN
Inventors: 姜峰
Original assignee: Lijiang Yixin Energy Development Co ltd
Current assignee: Yunnan Yixin Energy Development Co.,Ltd.
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-09-08
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a dehydration and demercuration device, which comprises a dehydration and regeneration component and a demercuration tower, wherein the dehydration and regeneration component comprises two groups of drying devices which are connected together, and an electric heater, a liquid-gas separator and a water cooler which are connected with the drying devices, each group of drying devices comprises two drying towers, and a circulating compressor is also arranged between the electric heater and the liquid-gas separator; the demercuration tower is connected with an outlet of the dehydration regeneration component; after being dried by one set of drying device, the gas is regenerated by the electric heater, the liquid-gas separator, the water cooler and the other set of corresponding drying device, and then enters the demercuration tower for demercuration, and is output after the demercuration is finished. Two sets of drying device in the dehydration regeneration subassembly can alternate use for two sets of drying device can obtain better maintenance, make regeneration effect better. The gas can remove moisture and mercury in the gas after passing through the dehydration regeneration assembly and the demercuration tower, so that the use is safer.

Description

Dehydration demercuration equipment

Technical Field

The utility model relates to a gas treatment technical field, concretely relates to dehydration demercuration equipment.

Background

Fossil fuel is the mainstream energy source at present, wherein natural gas is an indispensable energy source for family life, and heat is obtained by burning the natural gas for cooking or bathing. However, the natural gas raw material contains moisture and mercury, which may cause safety hazard to combustion and may result in a reduction in heat of combustion. Removal of water and mercury is therefore a necessary process step.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a dehydration demercuration equipment can get rid of moisture and mercury in the gas, guarantees safe in utilizationly.

The utility model provides a pair of dehydration demercuration equipment, include:

the dehydration regeneration assembly comprises two groups of drying devices which are connected together, and an electric heater, a liquid-gas separator and a water cooler which are connected with the drying devices, wherein each group of drying devices comprises two drying towers, and a circulating compressor is arranged between the electric heater and the liquid-gas separator;

the demercuration tower is connected with an outlet of the dehydration regeneration component; after being dried by one set of drying device, the gas is regenerated by the electric heater, the liquid-gas separator, the water cooler and the other set of corresponding drying device, and then enters the demercuration tower for demercuration, and is output after the demercuration is finished.

The beneficial effects of the above technical scheme are: two sets of drying device in the dehydration regeneration subassembly can alternate use for two sets of drying device can obtain better maintenance, and the circulating compressor can improve gaseous velocity of flow, makes regeneration effect better. The gas can remove moisture and mercury in the gas after passing through the dehydration regeneration assembly and the demercuration tower, so that the use is safer.

Further, a front filter is arranged at the upstream of the dehydration regeneration component, and a rear filter is arranged at the downstream of the demercuration tower. The front filter and the rear filter can filter impurities in the gas, so that the gas is cleaner.

Further, two drying towers in each group of drying devices are connected in series, and the two groups of drying devices are connected in parallel. The two groups of drying devices can be alternately used after being connected in parallel, and the passing sequence of the gas in the two groups of drying devices can be exchanged.

Furthermore, a drying agent is arranged in the drying tower and is fixed in the drying tower through a supporting net. The desiccant is capable of absorbing moisture in the gas.

Further, an activated carbon adsorbent is arranged in the demercuration tower. The activated carbon sorbent is capable of absorbing mercury from the gas.

Further, the front filter, the drying device, the liquid-gas separator and the rear filter are provided with drain outlets, and each drain outlet is connected with a drain header pipe.

Furthermore, an output main pipe is arranged at the output port of the demercuration tower in an outward extending mode, an unqualified gas discharge pipe is connected to the output main pipe in a branching mode, and an emptying main pipe is connected to the unqualified gas discharge pipe in a branching mode. The emptying header pipe is used for exhausting air in the equipment, so that the finished gas product is purer.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Reference numerals: the device comprises a pre-filter 100, a drying tower 200, an electric heater 300, a liquid-gas separator 400, a water cooler 500, a demercuration tower 600, a post-filter 700, an intermediate pipe 800 and a valve 900.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship as shown in the drawings for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media.

As shown in fig. 1, the present embodiment provides a dehydration and demercuration apparatus, which includes a dehydration and regeneration assembly and a demercuration tower 600, wherein the dehydration and regeneration assembly includes two groups of drying devices connected together, and an electric heater 300, an air-liquid separator 400 and a water cooler 500 connected to the drying devices, each group of drying devices includes two drying towers 200, and a circulation compressor is further disposed between the electric heater 300 and the air-liquid separator 400; the demercuration tower 600 is connected with the outlet of the dehydration regeneration component; after being dried by one set of drying device, the gas is regenerated by the electric heater 300, the liquid-gas separator 400, the water cooler 500 and the corresponding other set of drying device, and then enters the demercuration tower 600 for demercuration, and is output after the demercuration is finished.

Two sets of drying device in the dehydration regeneration subassembly can alternate use for two sets of drying device can obtain better maintenance, and the circulating compressor can improve gaseous velocity of flow, makes regeneration effect better. The gas can remove moisture and mercury in the gas after passing through the dehydration regeneration assembly and the demercuration tower 600, so that the use is safer.

A pre-filter 100 is arranged at the upstream of the dehydration regeneration component, and a post-filter 700 is arranged at the downstream of the demercuration tower 600. The front filter 100 and the rear filter 700 can filter impurities in the gas, so that the gas is cleaner.

The two drying towers 200 in each set of drying devices are connected in series and the two sets of drying devices are connected in parallel. The two groups of drying devices can be alternately used after being connected in parallel, and the passing sequence of the gas in the two groups of drying devices can be exchanged. The inlets of the two groups of drying devices are connected with the outlet of the pre-filter 100, the pipelines at the inlets of the two groups of drying devices are also communicated through a middle pipe 800, the middle pipe 800 is connected with the water cooler 500, valves 900 are arranged on the pipelines connected with the two groups of drying devices and the pre-filter 100, the two sides of the connecting position of the middle pipe 800 and the water cooler 500 are also provided with the valves 900, and the sequence of the drying devices in which gas enters after passing through the pre-filter 100 can be changed through the opening and closing of the valves 900. The outlets of the two groups of drying devices are connected with the inlet of the electric heater 300, the connecting pipeline is also provided with a valve 900 for conversion, gas enters one group of drying devices from the pre-filter 100, then sequentially passes through the electric heater 300, the liquid-gas separator 400 and the water cooler 500, and then enters the other corresponding group of drying devices to realize regeneration, and the regeneration process of the drying tower 200 comprises two steps of heating regeneration and blowing cooling. In the heating regeneration process, the gas is pressurized by the circulating compressor and then purges the drying tower 200 to be regenerated, so that the temperature of the adsorbent is raised and the moisture in the adsorbent is desorbed. The dew point of the dried product gas is lower than-70 ℃, the gas enters the demercuration tower 600 for the next treatment after passing through the drying device, and finally clean gas is discharged by the post-filter 700.

In the cooling process, the electric heater 300 stops working, the regeneration gas directly purges the drying tower 200 in the regeneration state, and the temperature of the drying tower 200 is reduced to the normal temperature.

A drying agent is arranged in the drying tower 200 and is fixed in the drying tower 200 through a supporting net. The desiccant is capable of absorbing moisture in the gas.

An activated carbon adsorbent is arranged in the demercuration tower 600. The activated carbon sorbent is capable of absorbing mercury from the gas. The mercury content is controlled to be less than or equal to 10ngNm 3. The adsorbent is required to be replaced after saturation.

The front filter 100, the drying device, the liquid-gas separator 400 and the rear filter 700 are provided with drain outlets, and each drain outlet is connected with a drain header pipe.

An output main pipe extends outwards from an output port of the demercuration tower 600, an unqualified gas discharge pipe is connected to the output main pipe in a branched mode, and an emptying main pipe is connected to the unqualified gas discharge pipe in a branched mode. The emptying header pipe is used for exhausting air in the equipment, so that the finished gas product is purer.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A dehydration and demercuration apparatus, comprising:

the drying device comprises a dehydration regeneration assembly, a drying device and a water cooler, wherein the dehydration regeneration assembly comprises two groups of drying devices which are connected together, and an electric heater (300), a liquid-gas separator (400) and a water cooler (500) which are connected with the drying devices, each group of drying devices comprises two drying towers (200), and a circulating compressor is further arranged between the electric heater (300) and the liquid-gas separator (400);

the demercuration tower (600), the demercuration tower (600) is connected with the outlet of the dehydration regeneration assembly; after being dried by one set of drying device, the gas is regenerated by the electric heater (300), the liquid-gas separator (400), the water cooler (500) and the other set of corresponding drying device, and then enters the demercuration tower (600) for demercuration, and is output after the demercuration is finished.

2. A dehydration and demercuration apparatus according to claim 1, wherein a pre-filter (100) is provided upstream of the dehydration regeneration assembly, and a post-filter (700) is provided downstream of the demercuration tower (600).

3. A plant for the dehydration and demercuration of claim 1, wherein the two drying towers (200) of each group of drying devices are connected in series and the two groups of drying devices are connected in parallel.

4. A dehydration and mercury removal device according to claim 1, characterized in that a desiccant is arranged in the drying tower (200), and the desiccant is fixed in the drying tower (200) through a support net.

5. A dehydration and demercuration apparatus according to claim 1, wherein an activated carbon adsorbent is disposed in the demercuration tower (600).

6. A device for dehydrating and removing mercury according to claim 2, characterized in that the pre-filter (100), the drying device, the liquid-gas separator (400) and the post-filter (700) are provided with drain outlets, and each drain outlet is connected with a drain header pipe.

7. The dehydration and demercuration equipment according to claim 1, wherein an output header pipe extends outwards from the output port of the demercuration tower (600), a defective gas discharge pipe is branched from the output header pipe, and an evacuation header pipe is branched from the defective gas discharge pipe.