CN211315776U - Methane positive and negative pressure protector with automatic drainage function - Google Patents

Abstract

A positive and negative pressure protector with automatic drainage function for marsh gas is composed of a tank body and an automatic drainage unit. The automatic drainage device is provided with a first transverse pipe, a first vertical pipe, a second transverse pipe and a second vertical pipe, wherein one end of the first transverse pipe is connected with the bottom of the side wall of the tank body to enable the first transverse pipe to be communicated with the inside of the tank body, the other end of the first transverse pipe is communicated with the bottom end of the first vertical pipe, the top end of the first vertical pipe is opened and communicated with the outside atmosphere, one end of the second transverse pipe is connected with the side wall of the first vertical pipe to enable the second transverse pipe to be communicated with the first vertical pipe, the other end of the second transverse pipe is communicated with the top end of the second vertical pipe, the bottom end of the second vertical pipe is opened, and the inner side wall of the top end of the second transverse pipe is level with the water level of water in the tank body. The utility model discloses can automatic drainage, work is safe, reliable, has solved the leachate processing system marsh gas area water yield big, the positive negative pressure protector of marsh gas need the problem of artifical drainage.

Description

Methane positive and negative pressure protector with automatic drainage function

Technical Field

The utility model relates to a positive negative pressure protector of marsh gas, in particular to a positive negative pressure protector of marsh gas with automatic drainage function.

Background

The biogas generated by the anaerobic tank of the leachate treatment system passes through the positive and negative pressure protector and the steam-water separator nitrification tank, so that the foam is excessive, and the environmental pollution is caused. The leachate treatment and expansion system of China's company [ energy-saving (Shijiazhuang) environmental protection energy limited company ], the water carrying capacity of the biogas is large, the positive and negative pressure protector discharges water manually, and the drainage is opened for a long time, so that the biogas can be leaked. The positive-negative pressure protector can cause a large amount of water to be accumulated at a biogas torch at the tail part of the biogas pipeline without opening a drain valve, so that torch combustion is frequently extinguished due to the fact that the biogas pressure is low, the biogas carries water (water is leachate), and impurities are more, and the protector is not provided with a reliable automatic drain valve.

The inventors searched the following related patent documents: CN202148307U discloses a marsh gas positive and negative pressure protector, including interior plenum chamber, outer plenum chamber and steady voltage water, interior plenum chamber and jar interface intercommunication, interior plenum chamber bottom and outer plenum chamber bottom intercommunication and the lower mouth part edge of outer plenum chamber need be lower than the lower limb of jar interface, steady voltage water is located interior plenum chamber and outer plenum chamber bottom and keeps apart interior plenum chamber and outer plenum chamber, outer plenum chamber passes through blast pipe and communicates with the atmosphere, and the position of steady voltage water in interior plenum chamber is interior water level, and the position of steady voltage water in outer plenum chamber is the outer water level. When the gas pressure in the digestion tank is less than the atmospheric pressure plus the pressure generated by the height difference between the external water level and the internal water level, air is sucked from the atmosphere in the digestion tank, and the pressure in the digestion tank is kept stable. CN208898894U discloses a water-sealed positive and negative pressure protector for balancing biogas fermentation pressure, which comprises a box body, wherein a buffer area and a balance area are sequentially arranged in the box body from top to bottom, an exhaust mechanism and a water inlet are arranged in the buffer area, the water inlet is communicated with the inside of the buffer area, an air inlet mechanism and a water outlet are arranged in the balance area, the water outlet is arranged on the outer wall of the lower part of one side of the box body, and the tail end of the water outlet is connected with a control valve. CN202054832U discloses a water-sealed positive and negative pressure protector for biogas fermentation, which comprises a first sealed tank, wherein the upper part of the first sealed tank is communicated with a main fermentation tank, the bottom of the first sealed tank is communicated with the bottom of a second sealed tank, the upper part of the second sealed tank is respectively communicated with the upper part of a third sealed tank and a gas storage tank, the bottom of the third sealed tank is communicated with the bottom of a fourth sealed tank, the upper part of the fourth sealed tank is communicated with the atmosphere, the first sealed tank and the second sealed tank are sealed by water, the third sealed tank and the fourth sealed tank are sealed by water, the pressure in the main fermentation tank is released to the atmosphere when the pressure in the gas storage tank reaches a set upper limit, the pressure in the gas storage tank is released to the atmosphere when the pressure in the main fermentation tank is lower than a set lower limit, the atmosphere is supplemented to the gas storage tank and the main fermentation tank when the pressure in the gas storage tank is insufficient, the purpose of positive and negative pressure protection of the main fermentation tank is achieved, and the main fermentation tank can work normally and stably. CN202032290U discloses an integrated positive and negative pressure protector, which comprises a protector cylinder; the cylinder body is filled with water and is provided with an air inlet pipe and a diffusion pipe; the bottom of the air inlet pipe extends into water in the barrel body, an air inlet pipe opening at the lower end is sealed by water to form a water seal structure, the air inlet pipe is connected with a check valve through a flexible connecting pipe, and an adjustable support is arranged between the flexible connecting pipe and the check valve.

The technologies can realize automatic drainage for the methane positive and negative pressure protector, and the operation is safe and reliable, so as to solve the problems that the water content of the methane is large and the methane positive and negative pressure protector needs manual drainage, and no specific guidance scheme is provided.

Disclosure of Invention

An object of the utility model is to provide a positive negative pressure protector of marsh gas with automatic drainage function, it can automatic drainage, and work is safe, reliable to solve the problem that leachate processing system marsh gas area water yield is big, the positive negative pressure protector of marsh gas needs artifical drainage.

For solving the technical problem, the utility model discloses the technical scheme that will adopt as follows:

the technical scheme is that the methane positive and negative pressure protector with the automatic drainage function is also provided with an automatic drainage device, the automatic drainage device is provided with a first transverse pipe, a first vertical pipe, a second transverse pipe and a second vertical pipe, one end of the first transverse pipe is connected with the bottom of the side wall of the tank body so as to enable the first transverse pipe to be communicated with the inside of the tank body, and the other end of the first transverse pipe is communicated with the bottom end of the first vertical pipe, the top end opening of first vertical pipe and be linked together with external atmosphere, the one end of the horizontal pipe of second is connected and makes the horizontal pipe of second and first vertical pipe be linked together with the lateral wall of first vertical pipe, and the other end of the horizontal pipe of second is linked together with the top of the vertical pipe of second, and the bottom opening of the vertical pipe of second, the top inside wall of the horizontal pipe of above-mentioned second is neat with the water level of the internal water of jar.

In the above technical solution, a preferable solution may be: the tank body is characterized in that the first transverse pipe inclines upwards by an angle, the position of one end of the first transverse pipe, which is connected with the bottom of the side wall of the tank body, is lower than the position of the other end of the first transverse pipe, which is communicated with the bottom end of the first vertical pipe, namely the position of the right side end of the first transverse pipe, is lower than the position of the left side end of the first transverse pipe, and the included angle beta between the central line of the first transverse pipe and the horizontal plane is 9-12 degrees (the included angle beta can be 10 degrees).

The utility model discloses have jar body, automatic hydrophobic means. The automatic water draining device is provided with a first transverse pipe, a first vertical pipe, a second transverse pipe and a second vertical pipe. Thus, the utility model discloses utilize physics atmospheric pressure principle, make first horizontal pipe be connected and make first horizontal pipe be linked together with jar internal portion with jar lateral wall bottom of the body, the open-top of blast pipe is linked together with external atmosphere, the open-top of first vertical pipe and be linked together with external atmosphere, the top inside wall of the horizontal pipe of above-mentioned second is together with the water level of jar internal water, keeps same water level. During operation, the water level in the tank body is kept unchanged, and redundant drainage in the tank body flows back to the anaerobic tank through the bottom opening of the second vertical pipe. The utility model discloses use in the leachate treatment, reform transform the positive negative pressure protector of traditional marsh gas in the leachate treatment into the positive negative pressure protector that has automatic drainage function, solved leachate processing system marsh gas area water yield big, marsh gas positive negative pressure protector need artifical a great deal of drawback of drainage. The utility model discloses can automatic drainage, work safety, reliable, the accident rate is 0. Through experiment, use the utility model discloses back working cost has reduced more than 15%.

Drawings

Fig. 1 is a schematic structural diagram (first embodiment) of the present invention.

Fig. 2 is a schematic structural diagram of the present invention (second embodiment).

Detailed Description

As shown in fig. 1, the first embodiment of the present invention has a tank 1 and an automatic draining device 2. The tank body 1 is provided with a methane inlet pipe 101, an exhaust pipe 102 communicated with the outside atmosphere, a methane outlet pipe 103, a manual drain door 104, a water inlet pipe (not shown in the figure) and the like. The manual drain door (valve) 104 is positioned at the bottom end of the tank body 1, water 3 is filled in the tank body 1, and the height of the water level formed by the water 3 can be half of the height of the tank body. Through the inlet tube is to jar internal (for the first time) adorning water 3, and the valve of inlet tube is closed at ordinary times, opens the valve of inlet tube when first to jar internal water 3 of 1 (or overhaul or wash jar internal cavity) of body. The bottom of the methane inlet pipe 101 and the bottom of the exhaust pipe 102 extend into the water in the tank body, and the lower port of the methane inlet pipe and the lower port of the exhaust pipe 102 are sealed by water to form a water seal structure. The automatic draining device 2 has a first transverse pipe 201, a first vertical pipe 202, a second transverse pipe 203, and a second vertical pipe 204. One end of the first transverse pipe 201 is connected with the bottom of the side wall of the tank body 1 to enable the first transverse pipe to be communicated with the inside of the tank body, the other end of the first transverse pipe 201 is communicated with the bottom end of the first vertical pipe 202, the top end of the first vertical pipe 202 is opened to be communicated with the outside atmosphere, one end of the second transverse pipe 203 is connected with the side wall of the first vertical pipe 202 to enable the second transverse pipe to be communicated with the first vertical pipe, the other end of the second transverse pipe 203 is communicated with the top end of the second vertical pipe 204, the bottom end of the second vertical pipe 204 is opened, and the inner side wall of the top end of the second transverse pipe 203 is aligned with the water level of the water 3 in the tank body. The first transverse pipe 201, the first vertical pipe 202, the second transverse pipe 203 and the second vertical pipe 204 may be made of circular steel pipes, and the joints may be welded.

As shown in fig. 2, the second embodiment of the present invention has a tank 1 and an automatic draining device 2. The second embodiment is similar to the first embodiment. Except that the first transverse pipe 201 is inclined upward at an angle in the second embodiment, and one end of the first transverse pipe 201 connected to the bottom of the sidewall of the tank body 1 is located at a position lower than the other end of the first transverse pipe 201 connected to the bottom end of the first vertical pipe 202, that is, the right end of the first transverse pipe 201 is located at a position lower than the left end of the first transverse pipe 201. The included angle beta between the center line of the first transverse pipe 201 and the horizontal plane is 9-12 degrees, and the included angle (the inclination angle of the first transverse pipe 201) beta can be 10 degrees. This configuration facilitates the retention of impurities at the bottom end of the tank, which are removed (purged) from the manual drain door 104 after a period of time.

The utility model discloses well first horizontal pipe 201 is connected and makes first horizontal pipe and jar internal portion be linked together with jar lateral wall bottom of the body 1, and the open-top of blast pipe 102 is linked together with external atmosphere, and the open-top of first vertical pipe 202 and be linked together with external atmosphere, and the top inside wall of the horizontal pipe 203 of above-mentioned second is together with jar internal water level of water 3, keeps same water level. A reserved heating port at the bottom of the positive and negative pressure protector is dismantled in construction, and the principle can be realized by installing an inverted U-shaped pipeline. During operation, the water level in the tank body is kept unchanged, and redundant drainage in the tank body flows back to the anaerobic tank through the bottom opening of the second vertical pipe 204. The utility model discloses use in the leachate treatment, reform transform the positive negative pressure protector of traditional marsh gas in the leachate treatment into the positive negative pressure protector that has automatic drainage function, solved leachate processing system marsh gas area water yield big, marsh gas positive negative pressure protector need artifical a great deal of drawback of drainage. The utility model discloses can automatic drainage, work safety, reliable, the accident rate is 0. Through experiment, use the utility model discloses back working cost has reduced more than 15%. It has simple structure and is practical.

Claims (3)

1. A marsh gas positive and negative pressure protector with an automatic drainage function comprises a tank body (1), wherein a marsh gas inlet pipe (101), an exhaust pipe (102) communicated with the outside atmosphere, a marsh gas outlet pipe (103) and a manual drainage door (104) are arranged on the tank body (1), the manual drainage door (104) is positioned at the bottom end of the tank body (1), water (3) is filled in the tank body (1), the bottom of the marsh gas inlet pipe (101) and the bottom of the exhaust pipe (102) extend into the water in the tank body, a water seal structure is formed by sealing the lower end opening of the marsh gas inlet pipe and the lower end opening of the exhaust pipe (102), the marsh gas positive and negative pressure protector is characterized by further comprising an automatic drainage device (2), the automatic drainage device (2) is provided with a first transverse pipe (201), a first vertical pipe (202), a second transverse pipe (203) and a second vertical pipe (204), one end of the first transverse pipe (201) is connected with the bottom of the side wall of the tank body (1) to enable the first transverse pipe to be communicated with the inside of the tank body, the other end of the first transverse pipe (201) is communicated with the bottom end of the first vertical pipe (202), the top end of the first vertical pipe (202) is opened to be communicated with the outside atmosphere, one end of the second transverse pipe (203) is connected with the side wall of the first vertical pipe (202) to enable the second transverse pipe to be communicated with the first vertical pipe, the other end of the second transverse pipe (203) is communicated with the top end of the second vertical pipe (204), the bottom end of the second vertical pipe (204) is opened, and the inner side wall of the top end of the second transverse pipe (203) is aligned with the water level of water (3) in the tank body.

2. The positive and negative pressure methane protector with the automatic water drainage function according to claim 1, wherein the first transverse pipe (201) is inclined upward by an angle, the position of one end of the first transverse pipe (201) connected with the bottom of the side wall of the tank body (1) is lower than the position of the other end of the first transverse pipe (201) communicated with the bottom end of the first vertical pipe (202), i.e., the position of the right end of the first transverse pipe (201) is lower than the position of the left end of the first transverse pipe (201), and the included angle (β) between the center line of the first transverse pipe (201) and the horizontal plane is 9-12 degrees.

3. The positive and negative pressure methane protector with the automatic water drainage function according to claim 2, wherein the included angle (β) between the center line of the first transverse pipe (201) and the horizontal plane is 10 °.

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