CN201014176Y

CN201014176Y - Air-inflation membrane structure gas storage holder

Info

Publication number: CN201014176Y
Application number: CNU2006200368071U
Authority: CN
Inventors: 彭罡
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-26
Filing date: 2006-12-26
Publication date: 2008-01-30
Anticipated expiration: 2016-12-26

Abstract

The utility model discloses a gas reservoir with a structure of inflation membrane to solve the problems of the existing gas reservoir such as the vulnerable and poor safety performance, poor heat-insulating property and instable pressure and so on. The inflation membrane gas reservoir includes a methane tank and a methane chamber that is positioned above the surface of the earth. The outer shell of the methane chamber is a two-layer structure which includes an external shell and an internal flexible membrane which is inflatable and retractable; A heat-insulating and pressure-regulating chamber, which is used as an heat-insulating layer and a pressure-regulating cavity, is arranged between the external shell and the internal membrane. The heat-insulating and pressure-regulating chamber is provided with an air inlet and is communicated with a blower arranged outside the methane chamber. The utility model utilizes the external membrane and the air supply blower to keep constant pressure, when the methane in the internal membrane decreases, the external membrane is inflated by the blower to keep the design methane pressure in the internal membrane; when the methane increases, the internal membrane expands normally and the redundant air in the external membrane is vented through a relief valve, so that the methane is always kept at a required constant design pressure.

Description

The air-supported membrane structure gas storage holder

Technical field

The utility model relates to a kind of gas storage holder, especially adopts the gas storage holder (jar) that biogas stores that is used for of air-supported membrane structure, also can be used for the storage of other other gases simultaneously.

Background technique

At present, there is the problem of following several respects in common biogas storage cabinet: one, gas storage holder is inner when natural pond slag discharging or drawdown can produce certain negative pressure, will cause certain destruction to gas storage holder like this; Two, be not incubated, temperature is low, the generation of biogas is to produce by multiple anaerobic bacteria is movable, the normal adaptation temperature of anaerobic bacteria is 8 ℃-70 ℃, being lower than 8 ℃ will can not produce biogas, the comprehensive anaerogenic reason of China's north biogas engineering in winter that Here it is; Three, when natural pond material minimizing or water level deficiency, biogas pressure can not be constant, particularly can not satisfy the marsh gas power generation unit to the constant requirement of air pressure; Need open biomass pool when four, slagging tap, easily cause security incident; Five, when biogas chamber gas leakage situation occurring, there is not the associated safety measure; Six, volume is little, and general gas-storing capacity is all below 10m3; Seven, lack general 3-5 working life; Eight, the completion time of project long, common biogas jar engineering is pressed 1000m ³Meter needed 5-8 month the soonest even the longer time can be finished construction, came into operation.

Summary of the invention

The utility model is intended to the above-mentioned defective at existing biogas storage cabinet (jar) existence, and a kind of air-supported membrane structure gas storage holder is provided.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows:

A kind of air-supported membrane structure gas storage holder, comprise and be positioned at the following biomass pool in the face of land, be positioned at above biogas chamber, the face of land, it is characterized in that: the biogas chamber enclosure is a double layer construction, comprise outer shell and inner layer film with the inflatable contraction of toughness, be the insulation surge-chamber as thermal insulation layer and pressure regulating cavity between outer shell and the inner layer film, the insulation surge-chamber is provided with intake grill and is connected with the blower of biogas outdoor.

Described biomass pool is provided with supply pipe, and supply pipe is a double layer construction, comprises the interior supply pipe and the outer field outer hot-water line of internal layer.

Described biomass pool is provided with dreg output pipe, and pulp pump is installed out on the dreg output pipe.

Described biogas chamber is communicated with by the safety valve of pipeline with the outside.

Described safety valve has the U type pipe of a handstand, and an end and inner layer film connect the biogas chamber, and the other end stretches in the tank.

Outer shell inside, described biogas chamber is provided with ultrasonic probe.

Outer shell inside, described biogas chamber is provided with methane detector.

End periphery is the gauffer shape of lamination under the described inner layer film.

Described biomass pool is fixed on the firm steelframe, between biomass pool and the biogas chamber porose steel plate and supporting frame is set.

Described biogas chamber outer shell is spherical, and place, face of land fixed edge is connected with firm steelframe.

The utility model membrane type structure working principle:

Utilize adventitia air inlet blower constant voltage, when inner membrance biogas amount reduces, adventitia is by the blower air inlet, the design pressure that keeps inner membrance biogas, when the biogas amount increases, inner membrance is normally upheld, and by safety valve the unnecessary air of adventitia is discharged, and makes the constant all the time design pressure at needs of biogas pressure.

Advantage of the present utility model is:

One, because inner layer film is the software material membrane structure with the inflatable contraction of toughness, can carry out contraction or expansion according to biogas chamber gas capacity, this regulatory function makes the biogas chamber can not produce negative pressure, and avoids negative pressure that it is damaged;

Two, end periphery is made the gauffer shape of lamination under the inner layer film, is convenient to the inner layer film pucker ﹠ bloat;

Three, between outer shell and inner layer film surge-chamber is set, its outer blower air-supply by the band safety check makes the pressure of surge-chamber keep constant, has guaranteed that the biogas chamber has steady pressure, can satisfy the marsh gas power generation unit to the constant requirement of air pressure;

Four, owing to be full of air between inner layer film and the outer shell, so surge-chamber also can be used as thermal insulation layer biogas is incubated; Even be low to moderate in outdoor temperature under-30 ℃ the situation, the temperature in the inner layer film still can reach more than 15 ℃ and not need special heating.

Five, the supply pipe skin is provided with hot-water line, but the delivering hot water heats charging the time, makes that raw material has higher temperature in the biomass pool, is convenient to fermentation and produces biogas, and be particularly useful for the north of china in winter biogas engineering;

Six, slag tap natural pond slag discharging pump is installed on the pipeline, can slag tap automatically, need not open biomass pool, safe and reliable;

Seven, the inner ultrasonic probe of installing of outer shell can detect biogas chamber biogas capacity by the distance of measuring between outer shell and the inner layer film;

Eight, the inner methane detector of installing of outer shell can know whether the biogas chamber has the gas leakage situation, can understand potential safety hazard early;

Nine, owing to adopt membrane structure, the multipotency of gas-storing capacity reaches 5000m ³, working life is more than 25 years;

Ten, the completion time of project weak point is pressed 1000m ³Meter just can complete comprehensively, and came into operation in the fastest 10-15 days.

Description of drawings

Fig. 1 is the utility model cross-sectional view

Fig. 2 partly cuts open structural representation for the utility model

Fig. 3 is the safety valve structure schematic representation

Embodiment

The air-supported membrane structure gas storage holder comprises being positioned at the following biomass pool 1 in the face of land, being positioned at above biogas chamber 2, the face of land.

Biogas chamber 2 shells are double layer construction, outer shell 3 spherical in shape or hemispheres, and place, face of land fixed edge 4 is connected with firm steelframe 5.As shown in Figure 1 and Figure 2, inner layer film 6 is made for the software material, has the inflatable contraction of toughness, and 6 times end peripheries of inner layer film are the gauffer shape of lamination.Be the insulation surge-chamber 7 as thermal insulation layer and pressure regulating cavity between outer shell 3 and the inner layer film 6, insulation surge-chamber 7 is provided with intake grill 8 and is connected with the blower 9 of biogas outdoor, and blower 9 is provided with safety check 10.The power of blower 9 and biogas chamber pressure coupling, when the biogas chamber pressure reached certain value, blower 9 quit work, and under the effect of safety check 10, made surge-chamber 7 pressure keep constant.

The membrane type structure working principle is: utilize adventitia (outer shell 3) air inlet, the blower constant voltage, when inner membrance (inner layer film 6) biogas amount reduces, adventitia is by blower 9 air inlets, keep the design pressure of inner membrance biogas, when the biogas amount increased, inner membrance was normally upheld, by safety valve the unnecessary air of adventitia is discharged, make constant all the time the design pressure of biogas pressure at needs.

Described biogas chamber 2 is communicated with by the safety valve 11 of pipeline with the outside to outside gas transmission by the biogas steam outlet pipe, and U type pipe 12, one ends and inner layer film that safety valve 11 has a handstand connect biogas chamber 2, and the other end stretches in the tank 13.If the biogas room pressure is too high, just biogas overflows from tank by safety valve.

The outer shell 3 inner ultrasonic probes 14 of installing can detect biogas chamber biogas capacity by the distance of measuring between outer shell 3 and the inner layer film 6.The outer shell 3 inner methane detectors 15 of installing can know whether the biogas chamber has the gas leakage situation, can understand potential safety hazard early.

Described biomass pool 1 is fixed on the firm steelframe 5, and housing basis 16 is constructed in firm steelframe 5 outsides, and porose steel plate 17 and supporting frame 18 are set between biomass pool 1 and the biogas chamber 2, and supporting frame 18 is in face of land height and position and is connected with biogas chamber enclosure 3.

Biomass pool 1 is provided with supply pipe, and supply pipe is a double layer construction, comprises the interior supply pipe 19 and the outer field outer hot-water line 20 of internal layer, but the delivering hot water heats in the time of charging, make the interior raw material of biomass pool have higher temperature, be convenient to fermentation and produce biogas, and be particularly useful for the north of china in winter biogas engineering.

Biomass pool 1 is provided with dreg output pipe 21, and pulp pump 22 is installed out on the dreg output pipe 21, can slag tap automatically, need not open biomass pool, and is safe and reliable.

Biomass pool 1 bottom is provided with stirrer 23, makes fermentation more abundant.

Biogas chamber 2 by biogas steam outlet pipe 24 to outside gas transmission.

Claims

1. air-supported membrane structure gas storage holder, comprise and be positioned at the following biomass pool (1) in the face of land, be positioned at above biogas chamber (2), the face of land, it is characterized in that: the biogas chamber enclosure is a double layer construction, comprise outer shell (3) and have the inner layer film (6) of the inflatable contraction of toughness, be the insulation surge-chamber (7) as thermal insulation layer and pressure regulating cavity between outer shell (3) and the inner layer film (6), insulation surge-chamber (7) is provided with intake grill (8) and is connected with the blower (9) of biogas outdoor.

2. air-supported membrane structure gas storage holder according to claim 1 is characterized in that: described biomass pool (1) is provided with supply pipe, and supply pipe is a double layer construction, comprises the interior supply pipe (19) and the outer field outer hot-water line (20) of internal layer.

3. air-supported membrane structure gas storage holder according to claim 1 and 2 is characterized in that: described biomass pool (1) is provided with dreg output pipe (21), and pulp pump (22) is installed out on the dreg output pipe (21).

4. air-supported membrane structure gas storage holder according to claim 3 is characterized in that: described biogas chamber (2) is communicated with by the safety valve (11) of pipeline with the outside.

5. air-supported membrane structure gas storage holder according to claim 4 is characterized in that: described safety valve (11) has the U type pipe (12) of a handstand, and an end and inner layer film (6) connect biogas chamber (2), and the other end stretches in the tank (13).

6. air-supported membrane structure gas storage holder according to claim 5 is characterized in that: described biogas chamber outer shell (3) inside is provided with ultrasonic probe (14).

7. air-supported membrane structure gas storage holder according to claim 6 is characterized in that: described biogas chamber outer shell (3) inside is provided with methane detector (15).

8. air-supported membrane structure gas storage holder according to claim 7 is characterized in that: end periphery is the gauffer shape of lamination under the described inner layer film (6).

9. air-supported membrane structure gas storage holder according to claim 8 is characterized in that: described biomass pool (1) is fixed on the firm steelframe (5), and porose steel plate (17) and supporting frame (18) are set between biomass pool (1) and biogas chamber (2).

10. air-supported membrane structure gas storage holder according to claim 9 is characterized in that: described biogas chamber outer shell (3) is sphere or hemisphere, and face of land place's fixed edge (4) is connected with firm steelframe (5).