CN111450794A

CN111450794A - Device for quickly generating gas hydrate

Info

Publication number: CN111450794A
Application number: CN202010401556.7A
Authority: CN
Inventors: 王兰云; 徐永亮; 温兴琳; 卢晓冉; 张亚娟; 刘真
Original assignee: Henan University of Technology
Current assignee: Henan University of Technology
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2020-07-28

Abstract

The invention relates to a device for quickly generating gas hydrate, which can effectively solve the problems of quickly generating crystal nucleus, ensuring the product quality and being convenient to store, and has the structure that a nucleon device is communicated with an outer ring annular pipe and is wedged on the outer ring annular pipe, an atomizing nozzle of the atomizer is alternately and respectively communicated with an auxiliary pipeline and the inner ring annular pipe, a main pipeline is respectively communicated with the inner ring annular pipe and the outer ring annular pipe of a nucleon ring to supply water for the nucleon ring, and an air pipe connects all the nucleon devices with an air injection nozzle together to form a structure for quickly generating hydrate; the hydrate structure and the sealing cover are alternately arranged below the upper opening part of the storage tank, the air pipe, the main pipeline and the auxiliary pipeline are connected with a valve group arranged outside the storage tank, a cooling liquid jacket is arranged outside the storage tank, and an exhaust valve is arranged on the side wall of the lower part of the storage tank to form a cooling structure for maintaining the low temperature of the storage tank. The invention has novel and unique structure, easy production and manufacture, convenient use, good effect and high purity of hydrate.

Description

Device for quickly generating gas hydrate

Technical Field

The invention relates to hydrate equipment, in particular to a device for quickly generating gas hydrate, which is used for quickly producing and storing crystal nuclei.

Background

The gas hydrate is a kind of cage type crystal formed by water molecule as host and gas molecule as guest through intermolecular force under low temperature and high pressure. The gas hydrate has the characteristics of large gas storage capacity, convenient transportation, safe use and the like. The gas hydrate can replace multi-carbon fossil fuel and reduce CO₂The discharge amount of the hydrate can also be used for transporting natural gas by using gas hydrate, the hydrate method can store cold, the hydrate method can exchange heat and the like, but the generation of the hydrate needs to be carried out through the processes of nucleation and nucleus growth, the induction period is long, great uncertainty and randomness exist, the formation of the nucleus is extremely difficult, how to quickly generate the hydrate is the main problem facing at present, and in order to solve the problem, a device capable of quickly generating the hydrate with higher purity is urgently needed.

The traditional gas hydrate is generated by directly adding raw materials such as water, gas, accelerant and the like into a tank body for stirring, then controlling the temperature and the pressure to fully mix the water and the gas, the induction time is long, the growth rate is low, the purity of the generated hydrate is not ideal, the storage is inconvenient, and the application of the hydrate technology is greatly limited.

Disclosure of Invention

In view of the above situation, the present invention provides a device for rapidly generating gas hydrate, which can effectively solve the problems of rapid generation of crystal nuclei, product quality assurance, and convenient storage.

The technical scheme includes that the device for rapidly generating the gas hydrate comprises a nucleon ring, a nucleon device, an atomizer, an air pipe and a storage tank, wherein the nucleon ring is composed of an inner ring annular pipe and an outer ring annular pipe; the hydrate structure and the sealed cover are alternately arranged below an upper opening part of the storage tank, the air pipe, the main pipeline and the auxiliary pipeline are connected with a valve group arranged outside the storage tank, the valve group is respectively composed of a second valve, a first valve and a third valve which are arranged on the air pipe, the main pipeline and the auxiliary pipeline, a cooling liquid jacket is arranged outside the storage tank, an exhaust valve is arranged on the side wall of the lower part of the storage tank, a cooling liquid inlet is arranged on one side of the upper part of the cooling liquid jacket, a cooling liquid outlet is arranged on the other side of the lower part of the cooling liquid jacket, and a cooling structure for.

The invention has novel and unique structure, easy production and manufacture, convenient use and good effect, and can be sprayed out by the nucleon device through high-pressure water-gas mixture, quickly condensed into crystal ice nucleus when meeting cold, and simultaneously spray gas and atomized liquid into the storage tank, thereby greatly improving the formation rate of gas hydrate, ensuring the purity of the hydrate, ensuring the product quality, developing the new application prospect of the hydrate and having great economic and social benefits.

Drawings

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

FIG. 2 is a schematic representation of the fast forming hydrate of the present invention.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings.

As shown in fig. 1 and 2, the device for rapidly generating gas hydrate of the present invention comprises a nucleus ring, a nucleus device, an atomizer, an air pipe and a storage tank, wherein the nucleus ring 1 is composed of an inner ring annular pipe 9 and an outer ring annular pipe 10, the nucleus device 2 is communicated with the outer ring annular pipe 10 and wedged on the outer ring annular pipe 10, an atomizing nozzle of the atomizer 3 is alternately and respectively communicated with an auxiliary pipeline 7 and the inner ring annular pipe 9, a main pipeline 6 is respectively communicated with the inner ring annular pipe 9 and the outer ring annular pipe 10 of the nucleus ring 1 to supply water to the nucleus ring, and the air pipe 5 connects all the nucleus devices 2 with the air nozzle 4 together to form a structure for rapidly generating hydrate; the hydrate structure and the sealing cover 21 are alternately arranged below the upper opening part of the storage tank 11, the air pipe 5, the main pipeline 6 and the auxiliary pipeline 7 are connected with a valve group 18 arranged outside the storage tank 11, the valve group 18 is respectively composed of a second valve 8-2, a first valve 8-1 and a third valve 8-3 which are arranged on the air pipe 5, the main pipeline 6 and the auxiliary pipeline 7, a cooling liquid jacket 21 is arranged outside the storage tank 11, an exhaust valve 17 is arranged on the side wall of the lower part of the storage tank 11, a cooling liquid inlet 19 is arranged on one side of the upper part of the cooling liquid jacket 21, and a cooling liquid outlet 20 is arranged on the other side of the lower part of the cooling liquid jacket, so that a cooling structure.

In order to ensure the use effect and the use convenience, the inner surface of the rapid hydrate generation structure is respectively provided with a temperature sensor 12 and a pressure sensor 13 (namely probes of the temperature sensor and the pressure sensor are arranged at the inner surface of the rapid hydrate generation structure) which are arranged outside the upper part of a sealing cover 21, the temperature and the pressure in the tank are monitored at any time, when the pressure in the tank is higher, the pressure is required to be relieved by an exhaust valve 17, and the pressure of the tank body is kept normal;

an air vent pipe 14 is arranged at the upper part of the side wall of the storage tank 11, a flow valve 15 and a pressure valve 16 are respectively arranged on the air vent pipe 14, and gas with a certain flow is blown in through the air vent pipe 14 and spirally descends under the driving of the gas, so that the water mist is prevented from being condensed into small liquid drops; meanwhile, a flow valve 15 and a pressure valve 16 are arranged on the vent hole 14 to control the flow and pressure of the gas entering the storage tank;

the number of the nucleon 2 and the atomizer 3 is the same, 8, and the nucleon and the atomizer are distributed at intervals;

the atomizer of the atomizer has two kinds of atomizer with different atomization degrees, one kind of atomizer is communicated with the auxiliary pipeline (7), and the other kind of atomizer is communicated with the inner ring annular pipe (9);

4-8 air injection nozzles are arranged on the spray head;

8 auxiliary pipelines 7 are respectively communicated with partial atomizing nozzles of 8 atomizers 3 uniformly distributed on the nucleus ring and are controlled by a third valve 8-3, and water containing a fluid state hydrate accelerant, such as liquid trimethylene sulfide, nano particles and the like, is introduced into the auxiliary pipelines 7;

a cooling liquid jacket 21 outside the storage tank 11 forms a cooling layer to keep the super-cooled state of the tank body;

one main pipeline 6 is provided, and a first valve 8-1 is arranged on the main pipeline;

the number of the air injection nozzles 4 is 8, air is supplied by the air pipes 5 respectively, and the air pipes 5 are controlled by 1 second valve 8-2.

The said nucleon device is used for making snow (known technology), and its principle of making snow is that pumping water into a pool, because the water temperature is higher, it is necessary to raise and cool by high pressure water pump, then pumping water into water pipe by water pump, and supplying high pressure water to snow-making machine, and the snow-making machine uses many nozzles in the jet system to jet out snow by fan. The water flow and the compressed gas rotating at high speed are mixed in the conical water and gas mixing cavity and then sprayed out together, the sprayed water flow and the air are rubbed and atomized into fine water mist, meanwhile, the sprayed compressed air is rapidly cooled into cold air due to expansion, and the water mist is mixed with the cold air to become small ice crystals, namely seed snow nuclei.

The nucleon device is the key of snow making, the snow is produced by that the air compressor can make air and a certain proportion of water pass through the nucleon device to produce snow nucleus, said snow nucleus can be used as seed snow and lots of water drops to make propagation, then said snow nucleus can be sprayed into the air, in the course of said process the snow nucleus can be formed, if the nucleon device is not used, the produced water drops are formed, said nucleon device utilizes the nucleon device to produce crystal ice nucleus to produce hydrate, and can be combined with other components so as to quickly produce hydrate, and said hydrate can be sprayed out from nozzle and stored in storage tank, so that it is convenient for use.

The structure shows that the invention discloses a device for quickly generating hydrate, which mainly comprises two parts: a gas hydrate storage tank and a hydrate generating device. The storage tank is used for further synthesizing hydrate and storing the hydrate; the generating device comprises a nuclear device, an air injection nozzle, an atomizer, a nuclear ring, an air supply pipe, a water supply pipe, an auxiliary pipeline for adjusting the generation amount of hydrate and a valve for controlling the whole water inlet system. The nuclear ring is composed of an inner ring pipe and an outer ring pipe, the water supply main pipe supplies water to the nuclear devices and the atomizers connected to the nuclear ring through the nuclear ring, and all the nuclear devices and the nozzle spray heads are connected together through the air pipes to be intensively filled with air. The invention mixes high-pressure water and gas and sprays the mixture through the nucleon device, the mixture is condensed into crystal ice nucleuses rapidly when meeting cold, and simultaneously gas and atomized liquid are sprayed into the storage tank, thereby greatly improving the formation rate of gas hydrate.

During the use, nucleon ware and outer lane annular tube intercommunication, atomizer part atomizer nozzle and the 7 intercommunications of water supply auxiliary conduit, and the degree of atomization can be adjusted to the auxiliary conduit, opens the valve of control auxiliary conduit when needs degree of atomization is high, improves the spraying volume, and part atomizer nozzle and outer lane annular tube 10 intercommunication. Opening a valve of a main pipeline, and supplying water to the nucleon 2 on the inner ring annular pipe 9 and the atomizer 3 on the outer ring annular pipe 10 by the main pipeline 6; meanwhile, a valve of a control air pipe 5 is opened, air is supplied to the nuclear device 2 and the air injection nozzle 4 through an air storage tank, and high-pressure water and high-pressure air are mixed in the nuclear device to quickly spray small crystal nuclei in a low-temperature environment; the atomizer sprays atomized small liquid drops into the tank through the atomizing nozzle, small crystal nuclei sprayed by the nucleus device generate hydrate crystal nuclei under the action of the atomizer 3, a valve for controlling a water supply pipeline is opened, liquid containing an active agent is introduced, and the atomization degree can be increased; after entering the tank body, gas with a certain flow is blown in from the vent hole 14 and spirally descends under the drive of the gas, so that the water mist is prevented from being condensed into small droplets; meanwhile, the vent 14 is provided with a flow valve 15 and a pressure valve 16 for controlling the flow and pressure of the gas entering the storage tank. A temperature sensor 12 and a pressure sensor 13 are arranged on the storage tank 11 to monitor the temperature and the pressure in the tank at any time; when the pressure in the tank body is high, the pressure is required to be relieved by the exhaust valve 17, and the pressure of the tank body is kept normal. It should be noted that the device for rapidly generating hydrate by using the nuclear reactor can increase or decrease the number of the nuclear reactor, the atomizer and the air injection nozzle or select other types of nozzles according to specific needs, so as to improve the atomization degree. The hydrate generating device effectively solves the problems of long induction time, low generation rate and poor hydrate purity of the existing hydrate equipment, through experiments and tests, the hydrate with high purity can be generated at the moment of starting (within a few seconds), the generation efficiency is improved by more than 5 times, the purity reaches more than 99 percent, and the generated hydrate can be effectively stored in the sealed storage tank 11, so that the hydrate is very convenient to store and use, the application of the hydrate technology is effectively and rapidly developed, the demands of the market on the hydrate are met, and the hydrate generating device has great economic and social benefits.

Finally, it is to be noted that: 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 various changes and modifications may be made, and equivalents may be substituted for elements thereof without departing from the scope of the present invention; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A device for rapidly generating gas hydrate comprises a nuclear ring, a nuclear device, an atomizer, an air pipe and a storage tank, and is characterized in that the nuclear ring (1) is composed of an inner ring annular pipe (9) and an outer ring annular pipe (10), the nuclear device (2) is communicated with the outer ring annular pipe (10) and is wedged on the outer ring annular pipe (10), an atomizing nozzle of the atomizer (3) is alternately and respectively communicated with an auxiliary pipeline (7) and the inner ring annular pipe (9), a main pipeline (6) is respectively communicated with the inner ring annular pipe (9) and the outer ring annular pipe (10) of the nuclear ring (1) to supply water for the nuclear ring, and the air pipe (5) connects all the nuclear devices (2) with the air nozzle (4) together to form a structure for rapidly generating hydrate; the hydrate structure and the sealing cover (21) are alternately arranged below the upper opening of the storage tank (11), the air pipe (5), the main pipeline (6), the auxiliary pipeline (7) are connected with a valve group (18) arranged outside the storage tank (11), the valve group (18) is respectively composed of a second valve (8-2), a first valve (8-1) and a third valve (8-3) which are arranged on the air pipe (5), the main pipeline (6) and the auxiliary pipeline (7), a cooling liquid jacket (21) is arranged outside the storage tank (11), an exhaust valve (17) is arranged on the side wall of the lower part of the storage tank (11), a cooling liquid inlet (19) is arranged on one side of the upper part of the cooling liquid jacket (21), and a cooling liquid outlet (20) is arranged on the other side of the lower part of the cooling liquid jacket, so that a cooling structure for.

2. The apparatus for rapidly generating gas hydrate as claimed in claim 1, wherein the inner surface of the structure for rapidly generating gas hydrate is respectively provided with a temperature sensor (12) and a pressure sensor (13) which are arranged outside the upper part of the sealing cover (21), the temperature and the pressure in the tank are monitored at any time, and when the pressure in the tank is higher, the pressure is released by the vent valve (17), so as to keep the pressure of the tank normal.

3. The device for rapidly generating the gas hydrate as claimed in claim 1, wherein the upper part of the side wall of the storage tank (11) is provided with a vent pipe (14), the vent pipe (14) is respectively provided with a flow valve (15) and a pressure valve (16), a certain flow of gas is blown through the vent pipe (14) and is spirally descended under the driving of the gas, so that the water mist is prevented from being condensed into small liquid drops; meanwhile, a flow valve (15) and a pressure valve (16) are arranged on the vent hole (14) to control the flow and pressure of the gas entering the storage tank.

4. The apparatus for rapidly generating gas hydrate according to claim 1, wherein the number of the nucleon devices (2) and the atomizer (3) is the same, 8, and the nucleon devices and the atomizer are symmetrically distributed at intervals.

5. The apparatus for rapid generation of gas hydrate according to claim 1, wherein the atomizer has two atomizers with different degrees of atomization, one of the atomizers is communicated with the auxiliary conduit (7), and the other atomizer is communicated with the inner ring annular tube (9).

6. An apparatus for the rapid generation of gas hydrates according to claim 1, characterized in that there are 4-8 gas injection nozzles (4).

7. The device for rapidly generating the gas hydrate as claimed in claim 1, wherein the number of the auxiliary pipelines (7) is 8, the auxiliary pipelines are respectively communicated with partial atomizing nozzles of 8 atomizers (3) uniformly distributed on the nuclear ring and are controlled by a third valve (8-3), and water containing a flow state hydrate accelerant is introduced into the auxiliary pipelines (7).

8. An apparatus for rapid generation of gas hydrates according to claim 1, characterized in that the cooling jacket (21) outside the storage tank (11) constitutes a cooling layer to maintain the super cooled state of the tank.

9. A rapid gas hydrate formation apparatus as claimed in claim 1, wherein there is one main conduit (6) which is provided with the first valve (8-1).

10. The apparatus for rapid generation of gas hydrates according to claim 1, wherein the number of the gas injection nozzles (4) is 8, and the gas injection nozzles are respectively supplied with gas through gas pipes (5), and the gas pipes (5) are controlled by 1 second valve (8-2).