Adsorption type natural gas tank container

Abstract

The utility model relates to the technical field of new energy, in particular to an adsorption type natural gas tank container which comprises a container frame, a tank body, a supporting filter screen, a safety valve, a pressure gauge, a stop valve, an operation box and an adsorbent, a filling opening is formed in the top of the tank body, the adsorbent is filled and unloaded through the filling opening, and the supporting filter screen is welded to the inner wall of the tank body. The support is used for supporting and filtering adsorbents. A safety valve, a pressure gauge and a stop valve are arranged in the operation box, natural gas is filled and released through the stop valve, and an adsorbent in the tank box carries out adsorption storage and transportation and desorption release on the natural gas. The natural gas storage and transportation device has the advantages of large unit stock, low storage pressure, smooth gas discharging process and high storage and transportation safety coefficient, and can effectively solve the safety problems of storage and transportation and gas utilization of natural gas.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy, in particular to an adsorption type natural gas tank box. Background Art

[0002] The asymmetry between my country's natural gas production areas and major consumption areas has led to natural gas storage and transportation technology becoming an important factor restricting the development of the industry. With the accelerated promotion of my country's natural gas industry, safe and convenient natural gas storage and transportation technology has become the main trend of natural gas development in the future.

[0003] In order to solve the problems of poor storage and transportation safety and flammability and explosion during the deflation process of existing high-pressure natural gas storage tanks, an adsorption-type natural gas tank box is proposed. Adsorption-type natural gas technology belongs to physical adsorption. It is to put a natural gas-specific adsorbent with a high specific surface area into the storage tank, and use its huge internal surface area and rich microporous structure to adsorb and store natural gas at room temperature and medium pressure. Its biggest advantage is that it can obtain a storage energy density close to that of CNG (compressed natural gas) under high pressure (20MPa) at low pressure (3.5-6.0MPa). When the pressure in the storage tank is lower than the outside, the natural gas is adsorbed on the surface of the solid micropores of the adsorbent for storage; when the pressure in the storage tank is higher than the outside, the natural gas is desorbed from the solid surface of the adsorbent and supplied to the outside. Since the adsorption-type natural gas storage tank has the advantages of large unit storage capacity, low storage pressure, gentle deflation process, and high storage and transportation safety factor, it can effectively solve the safety problems of natural gas storage, transportation and use. Utility Model Content

[0004] Based on the above purpose, the utility model provides an adsorption type natural gas tank box. It uses nano-grade activated carbon as an adsorbent material to adsorb, store and desorb natural gas, ensuring that the storage tank has the advantages of large unit storage capacity, low storage pressure, smooth deflation process, and high storage and transportation safety factor. The tank box adopts a container-type structure to meet the relevant requirements of land, sea and rail transportation, and can effectively solve the safety problems of natural gas storage, transportation and use.

[0005] An adsorption type natural gas tank container comprises a container frame, a tank body, a supporting filter screen, a safety valve, a pressure gauge, a stop valve, an operation box and an adsorbent.

[0006] Furthermore, the container frame is of internationally common standard size and is made of welded steel. Each corner of the frame is provided with a standard container fixing block, which can meet the lifting and fixing requirements of automobile road transportation, cargo ship sea transportation and train and railway transportation. The container frame is also provided with a ladder and an inspection passage on the top, which can meet the daily inspection and maintenance work of the tank container.

[0007] Furthermore, the tank body is a circular cylindrical structure with butterfly-shaped heads welded at both ends and an adsorbent filling port with a flange at the top. The tank body is placed inside the container frame and welded to the container frame to form a whole.

[0008] Furthermore, the supporting filter screen adopts a conical sieve plate filter screen structure.

[0009] Furthermore, the safety valve structure is a threaded spring full-lift safety valve, which plays the role of overpressure safety discharge protection tank container.

[0010] Furthermore, the pressure gauge is a shock-resistant diaphragm pressure gauge.

[0011] Furthermore, the stop valve is an intelligent manual stop valve, which can remotely monitor the pressure and temperature of the natural gas inside the tank body (02) and the tank box position signal.

[0012] Furthermore, the operation box is a closed box, and is provided with two movable doors, and the doors are provided with door locks.

[0013] Furthermore, the adsorbent is an activated carbon with a microporous structure and a specific surface area greater than 3000m 2 / g, the micropore diameter is 1-2 nanometers, and the pore volume ratio is greater than 85%.

[0014] Furthermore, in a feasible implementation mode of the utility model, the container frame is first welded to the tank body, and a filling port is provided on the top of the tank body, through which the adsorbent is loaded and unloaded. The support filter is installed on the inner wall of the end cap of the tank body with a valve, supporting the adsorbent to ensure that the adsorbent solid particles and dust are filtered out when the gas is discharged from the tank body. The tank box is provided with an operating box, and a safety valve, a pressure gauge and a stop valve are provided inside the operating box. Natural gas is filled and released through the stop valve, and the safety valve plays a role in overpressure safety discharge protection. The pressure gauge is used to observe the pressure inside the tank body. The adsorbent inside the tank box adsorbs, stores, transports and desorbs and releases natural gas.

[0015] Beneficial effects of the utility model:

[0016] The utility model uses polymer materials as adsorbents to absorb natural gas, ensuring that the storage tank has the advantages of large unit storage capacity, low storage pressure, smooth deflation process, and high storage and transportation safety factor. The tank adopts a container-type structure that can meet the relevant requirements of land, sea and rail transportation, and can effectively solve the safety issues of natural gas storage, transportation and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is an appearance diagram of an adsorption-type natural gas tank container.

[0019] Figure 2 The figure is a cross-sectional view of a tank body of an adsorption-type natural gas tank container.

[0020] Figure 3 The figure is a cross-sectional view of an operating box of an adsorption-type natural gas tank container.

[0021] Legend:

[0022] 01. Container frame; 02. Tank body; 03. Support filter; 04. Safety valve; 05. Pressure gauge; 06. Stop valve; 07. Operation box; 08. Adsorbent; A. Filling port.

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0025] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] like Figure 1 , Figure 2 and Figure 3As shown, an adsorption type natural gas tank container includes a container frame 01, a tank body 02, a supporting filter 03, a safety valve 04, a pressure gauge 05, a stop valve 06, an operation box 07 and an adsorbent 08.

[0027] The size of container frame 01 is the size of a 20-foot standard container cabinet. The frame is made of welded steel. Each corner of the frame is equipped with a standard container fixing block, which can meet the lifting and fixing requirements of automobile road transportation, cargo ship sea transportation and train and railway transportation. Container frame 01 is also equipped with a ladder and an inspection channel on the top to meet the daily inspection and maintenance work of the tank container.

[0028] The tank body 02 is a circular cylindrical structure with butterfly heads welded at both ends and a filler port A with a flange on the top. The tank body 02 is placed inside the container frame 01 and is welded to the container frame 01 to form a whole.

[0029] The supporting filter 03 adopts a conical sieve plate filter structure, with 2 layers of stainless steel punching plates sandwiching 1 layer of 100 mesh 304 filter, 1 layer of 300 mesh 304 filter and 1 layer of 100 mesh 304 filter, and the filtering accuracy reaches more than 50 microns.

[0030] The structural type of safety valve 04 is a threaded spring full-lift safety valve, which plays the role of overpressure safety discharge to protect the tank container.

[0031] Pressure gauge 05 is a shock-resistant diaphragm pressure gauge.

[0032] The stop valve 06 is an intelligent manual stop valve that can remotely monitor the pressure and temperature of the natural gas inside the tank (02) and the tank container position signal.

[0033] The operation box 07 is a closed box, and is provided with two movable doors, and the doors are provided with door locks.

[0034] Adsorbent 08 is an activated carbon with a microporous structure and a specific surface area greater than 3000m 2 / g, the micropore diameter is 1-2 nanometers, and the pore volume ratio is greater than 85%.

[0035] In the feasible implementation scheme of the utility model, the container frame 01 is first welded to the tank body 02, and a filling port A is provided on the top of the tank body 02, through which the adsorbent 08 is loaded and unloaded. The support filter 03 is installed on the inner wall of the end cap with a valve in the tank body 02, supporting the adsorbent 03 to ensure that the solid particles and dust of the adsorbent 03 are filtered out when the natural gas is discharged from the tank body 02. The tank box is provided with an operation box 07, and a safety valve 04, a pressure gauge 05 and a stop valve 06 are provided inside the operation box. The natural gas is filled and released through the stop valve 06, and the safety valve 04 plays a role in safe discharge. The pressure gauge 05 is used to observe the natural gas pressure inside the tank body 02. The adsorbent 03 inside the tank box adsorbs, stores, transports and desorbs and releases the natural gas.

[0036] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adsorption type natural gas tank container, characterized in that: It comprises a container frame (01), a tank body (02), a supporting filter (03), a safety valve (04), a pressure gauge (05), a stop valve (06), an operating box (07) and an adsorbent (08); The size of the container frame (01) is the size of a standard container, the frame is made by welding steel sections, and each corner of the frame is provided with a standard container fixing block; The tank body (02) is a circular cylindrical structure with butterfly-shaped caps welded at both ends and an adsorbent filling port with a flange at the top. The tank body is placed inside the container frame (01) and is welded to the container frame to form a whole. The supporting filter (03) adopts a conical sieve plate filter structure, with two layers of stainless steel punching plates sandwiching one layer of 100 mesh 304 filter, one layer of 300 mesh 304 filter and one layer of 100 mesh 304 filter, and the filtering accuracy reaches more than 50 microns.

2. The adsorption type natural gas tank container according to claim 1, characterized in that: The safety valve (04) is a threaded spring full-lift safety valve, which plays the role of overpressure safety discharge protection tank container.

3. The adsorption type natural gas tank container according to claim 1, characterized in that: The pressure gauge (05) is a shock-resistant diaphragm pressure gauge.

4. The adsorption type natural gas tank container according to claim 1, characterized in that: The stop valve (06) is an intelligent manual stop valve, which can remotely monitor the pressure and temperature of the natural gas inside the tank body (02) and the tank box position signal.

5. The adsorption type natural gas tank container according to claim 1, characterized in that: The operation box (07) is a closed box body, and is provided with two movable doors, and the doors are provided with door locks.

6. The adsorption type natural gas tank container according to claim 1, characterized in that: The adsorbent (08) is an activated carbon with a microporous structure, with a specific surface area greater than 3000m2 / g, a micropore diameter of 1-2 nanometers, and a pore volume ratio greater than 85%.

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