The bottom membrane and the outer membrane jointly form a closed gas storage space. The inner membrane divides the gas holder into a gas storage space and a pressure regulating space.
When the stored gas increases, the inner membrane rises, and the safety protector releases the pressure-regulating air to free up some capacity, allowing the gas to smoothly enter the gas holder. If the inner membrane rises to fill and becomes compressed, the safety protector will release the inner membrane gas protectively. To prevent the endometrium from being compressed and protect it.
When the gas stored in the inner membrane decreases, the inner membrane descends, and the control equipment then injects pressure-regulating air to balance the pressure inside the cabinet. At the same time, it stabilizes the stiffness of the outer membrane to ensure that the stored gas can flow out of the gas holder smoothly.
Scope of application:
Storage of various neutral gases such as biogas, air, carbon dioxide, oxygen, etc.
Structural composition:
It is mainly composed of the bottom membrane (except for the integrated gas holder), inner membrane, outer membrane, constant pressure control cabinet, safety protector and some control equipment and auxiliary materials. (The equipment composition is shown in the figure.)
Bottom film: Mainly used for foundation sealing to achieve anti-corrosion and anti-seepage that traditional infrastructure cannot reach.
Outer membrane: It forms a pressure regulating chamber, allowing the stored gas to be output at a constant pressure and protecting the inner membrane. The outer membrane is connected to the edges of the inner membrane and the bottom membrane or the opening of the fermentation tank.
Inner membrane: Isolates the stored gas from the outer membrane for pressure regulation.
Control cabinet: It detects the pressure of the gas cabinet and the volume of the inner membrane. It can also integrate numerous information such as the volume of the inner membrane, leakage concentration, and system flow rate as needed. Automatically inject pressure-regulating air according to the pressure;
Safety protector: Air release in the pressure regulating chamber and excessive protective discharge of the inner membrane.
Gas storage volume (m²) |
The diameter of the sphere D* (m) |
The height of the sphere H* (m) |
100 |
6.7 |
5.4 |
200 |
8.2 |
6.5 |
300 |
9.4 |
75 |
400 |
10.2 |
8.0 |
500 |
10.8 |
8.6 |
600 |
11.8 |
9.5 |
750 |
12.5 |
9.8 |
1000 |
13.6 |
10.2 |
1500 |
15.7 |
12.3 |
2000 |
17.3 |
13.3 |
2500 |
18.5 |
14.4 |
3000 |
19.7 |
15.3 |
4000 |
21.8 |
17.0 |
5000 |
23.4 |
18.2 |
The airtightness test was completed in the factory
Select the corresponding specification according to the volume size
Endometrial volume (m³) |
Outer membrane volume (m³) |
Node diameter (m) |
Height of the outer membrane (m) |
Diameter of |
100 |
112 |
5.8 |
4.6 |
6.4 |
200 |
224 |
7.3 |
5.8 |
8.1 |
300 |
336 |
8.3 |
6.7 |
9.3 |
500 |
560 |
9.9 |
7.9 |
11.0 |
600 |
672 |
10.5 |
8.4 |
11.7 |
1000 |
1120 |
12.4 |
10.0 |
13.8 |
1500 |
1680 |
14.2 |
11.4 |
15.8 |
2000 |
2240 |
15.6 |
12.5 |
17.2 |
2500 |
2800 |
16.9 |
13.5 |
18.8 |
Endometrial volume (m³) |
Outer membrane volume (m³) |
Node diameter (m) |
Height of the outer membrane (m) |
Diameter of |
3000 |
3360 |
17.9 |
14.4 |
19.9 |
4000 |
4480 |
19.7 |
15.8 |
22.0 |
5000 |
5600 |
21.2 |
17.0 |
23.6 |
6000 |
6720 |
22.6 |
18.1 |
25.1 |
7000 |
7840 |
23.8 |
19.0 |
26.5 |
8000 |
8960 |
24.8 |
19.9 |
27.7 |
10000 |
11200 |
26.8 |
21.5 |
29.8 |
15000 |
16800 |
30.6 |
24.6 |
34.1 |
20000 |
22400 |
33.7 |
27.0 |
37.6 |
Biogas Technology