CN216785949U - Carbon cyclic utilization of from rotating circular vault septic tank gets gas control assembly - Google Patents
Carbon cyclic utilization of from rotating circular vault septic tank gets gas control assembly Download PDFInfo
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- CN216785949U CN216785949U CN202122905638.8U CN202122905638U CN216785949U CN 216785949 U CN216785949 U CN 216785949U CN 202122905638 U CN202122905638 U CN 202122905638U CN 216785949 U CN216785949 U CN 216785949U
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Abstract
The utility model discloses a carbon recycling gas taking control assembly of a spinning circular vault septic tank, which comprises the spinning circular vault septic tank, wherein a methane taking pipe is arranged on the spinning circular vault septic tank, the spinning circular vault septic tank comprises a valve box, and a first connecting pipe, a second connecting pipe and an explosion-proof pressure relief pipe which are connected together through a three-way pipe are arranged in the valve box; a septic tank gas taking valve is distributed on the first connecting pipe, and the first connecting pipe is connected with the methane gas taking pipe; a pressure difference control valve is distributed on the second connecting pipe; and the explosion-proof pressure relief pipe is provided with an explosion-proof pressure relief valve. The utility model has the advantages of energy saving, high efficiency, safety, reliability and the like when being used for controlling methane gas taking.
Description
Technical Field
The utility model relates to the technical field of septic tank biogas gas taking, in particular to a carbon recycling gas taking control assembly of a self-rotating circular arch-crown septic tank.
Background
The self-rotating type circular vault septic tank is a single tank body septic tank with a full-sealing structure, one end of a water outlet pipe is buried at the bottom of a tank body, the upper part of the water outlet pipe is arranged at a high position, the decomposition of domestic wastes is accelerated by virtue of fermentation in the septic tank and high pressure generated by high temperature, and meanwhile, the lower-layer sewage after fermentation decomposition is drained by virtue of a high-pressure mode in the tank, namely, the self-rotating type circular vault septic tank can normally work only by always maintaining a certain high-temperature and high-pressure state, for example, the utility model patent applied by the applicant: from rotating circular vault septic tank, application number: 205106757104. therefore, a similar conventional gas extraction method cannot be adopted when extracting gas therefrom because: 1. The water content of the methane generated by the spinning circular arch-top septic tank is much higher than that of the common methane, and the methane must be dehydrated before entering the gas storage tank; 2. the gas taking is pressure maintaining gas taking, the gas taking of the spinning circular vault septic tank needs to be carried out between the working pressure higher than the tank body and the explosion-proof pressure value lower than the set tank body, the gas taking process prevents the pressure in the spinning circular vault septic tank from being lower than the pressure required by the work, and meanwhile, the pressure of the gas storage tank is ensured to be maintained within the safe pressure range of the gas storage tank. Therefore, how is safe and effective valve control performed under the above conditions satisfied? Although electronic equipment such as pressure-sensitive sensors, electric control valves and the like are currently used, the electronic control valves related to the field of methane tanks are not suitable for use, because: 1. septic tanks etc. generally distribute in low-lying, remote places such as humidity, dirt, and the insect pest is more, adopts the automatically controlled product to act as go-between difficult and easily destroyed by insect pests such as mouse, in case certain section circuit or circuit board trouble appear, the valve is scrapped, not only plays the effect that should have and can bring potential safety hazards such as explosion. 2. When the electric control product is used in the septic tank, the electric control product is easily corroded by high-humidity methane, and the sensitivity of the electric control product is easily and rapidly reduced or even loses efficacy. 3. The methane is inflammable gas, the septic tank and the methane taking are wide in construction and distribution range, and professional levels of construction teams are uneven, so that explosion is easily caused by electric leakage and the like. Therefore, the best control scheme applied to the technical field of septic tanks and biogas is mechanical valve control, and how to realize the mechanical valve control with simple structure, reliable control and safety is a major technical problem to be solved under the condition of meeting the relevant requirements of the self-rotating circular arch-shaped septic tank.
Disclosure of Invention
Aiming at the technical problems, the utility model provides the biogas gas taking control component for the spinning circular vault septic tank, which has the advantages of simple structure, reliable control and safety.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a carbon recycling gas taking control assembly of a spinning circular vault septic tank comprises the spinning circular vault septic tank, wherein a methane taking pipe is arranged on the spinning circular vault septic tank and comprises a valve box, and a first connecting pipe, a second connecting pipe and an explosion-proof pressure relief pipe which are connected together through a three-way pipe are arranged in the valve box; a septic tank gas taking valve is distributed on the first connecting pipe, and the first connecting pipe is connected with the methane gas taking pipe; a pressure difference control valve is distributed on the second connecting pipe; and the explosion-proof pressure relief pipe is provided with an explosion-proof pressure relief valve.
Further, a target type flow switch is also arranged on the second connecting pipe; the target type flow switch is distributed on the rear side of the differential pressure control valve.
Further, the gas taking valve of the septic tank is a pressure release valve.
Furthermore, the gas taking valve of the septic tank is a floating ball liquid level switch valve, the floating ball liquid level switch valve is distributed in the self-rotating circular vault septic tank, and the opening and closing of the valve on the first connecting pipe are controlled through the liquid level height in the self-rotating circular vault septic tank.
Further, the device also comprises a dewatering box; the second connecting pipe is connected with an air inlet of the dewatering box, the dewatering box further comprises a dewatering table, and a methane cooling assembly is distributed on the dewatering table; a cooling water collecting cavity is arranged below the methane cooling assembly, an air inlet of the dewatering box is formed in the upper part of the cooling water collecting cavity, and the methane cooling assembly is distributed on the top of the cooling water collecting cavity; and the lower part of the cooling water collecting cavity is also provided with a drain pipe and a drain pipe valve.
Furthermore, the marsh gas cooling assembly comprises a refrigerating system, and the on-off of a circuit of the refrigerating system is controlled by the target type flow switch.
Further, a valve switch is arranged on the methane taking pipe.
Furthermore, an exhaust small pipe is further arranged on the three-way pipe of the valve box, and a one-way air valve is further arranged on the exhaust small pipe.
Compared with the prior art, the utility model has the following beneficial effects:
the valve box can ensure that the air pressure in the self-rotating circular vault septic tank is not too low so as to maintain the normal work of the self-rotating circular vault septic tank after gas taking, and simultaneously, the valve box also can prevent overhigh air pressure from entering the air storage tank, directly discharges overhigh air pressure methane before entering the dewatering box, and ensures that the dry methane after energy consumption and dewatering can be used for 100 percent, and is safe and reliable because an explosion-proof valve is arranged on the air storage tank; meanwhile, the refrigeration system is started only when the pressure difference control valve is opened and methane flows in, so that the energy-saving effect is obviously improved. The valve box provided by the utility model is controlled and realized by using a mechanical valve, so that the failure rate and the pest resistance are obviously reduced, the workload is greatly reduced when the gas taking and installation construction of the septic tank is carried out because the electricity consumption is not involved, the problem of power supply is not required to be considered, the construction cost is greatly reduced, and the actual use effect is good.
Drawings
FIG. 1 is a schematic view of the construction of a valve box of the present invention;
fig. 2 is a schematic view of the assembled structure of the present invention.
Detailed Description
As shown in fig. 1-2, a carbon recycling gas taking control assembly of a spinning circular vault septic tank comprises a spinning circular vault septic tank 1, a methane gas taking pipe 2 is arranged on the spinning circular vault septic tank 1, a valve box 4 and a dehydration box 14 are further included, and a first connecting pipe 6, a second connecting pipe 7 and an explosion-proof pressure relief pipe 12 which are connected together through a three-way pipe are arranged in the valve box 4; a septic tank gas taking valve is distributed on the first connecting pipe 6, and the first connecting pipe is connected with the methane gas taking pipe 2; the methane gas taking pipe 2 is also provided with a valve switch 3, and the second connecting pipe 7 is distributed with a differential pressure control valve 8; the explosion-proof pressure relief pipe 12 is provided with an explosion-proof pressure relief valve 11. The second connecting pipe 7 is also provided with a target type flow switch 13; the target type flow switch 13 is distributed on the rear side of the differential pressure control valve 8. Of course, the front side of the differential pressure control valve can be additionally provided with a one-way valve, namely, the safety degree is improved to prevent methane from flowing back from one end of the gas storage tank, but the differential pressure control valve also has the function of the one-way valve, and the function is mainly used for increasing the safety or preventing the methane from flowing back when the differential pressure control valve fails. Certainly, the three-way pipe of the valve box is also provided with a small exhaust pipe 9, the small exhaust pipe 9 is also provided with a one-way air valve 10, and the small exhaust pipe 9 is mainly used for realizing the slow discharge of high-pressure air in the section of the three-way pipe after the gas taking and pressure releasing valve of the septic tank is closed so as to maintain the non-high-pressure state in the three-way pipe and improve the accuracy of each valve in the three-way pipe.
The gas taking valve of the septic tank is a pressure release valve 5, namely, the gas is automatically opened to release when the pressure in the septic tank is greater than a set value. Certainly, the septic tank gas taking valve can be controlled by adopting a floating ball liquid level switch valve which is distributed in the self-rotating circular vault septic tank, the opening and closing of the valve on the first connecting pipe are controlled by the liquid level height in the self-rotating circular vault septic tank, the same technical effect can be realized by adopting the floating ball liquid level switch valve, the opening and closing of the valve can be set according to the liquid level height in the self-rotating circular vault septic tank, the upper end of a water outlet pipe in the self-rotating circular vault septic tank is positioned at the high position of the tank body, wastewater can be discharged only by the high pressure in the tank, therefore, the high pressure in the tank is in direct proportion to the descending amplitude of the liquid level, the floating ball can be reacted on the floating ball according to the descending amplitude of the liquid level, then the gas taking valve switch is controlled by the ascending and descending of the liquid level, the used floating ball liquid level switch valve can also be provided with a semi-cylindrical mesh enclosure to cover the floating ball, to prevent dirt from getting stuck, the construction principle can be similar to the patent applied by the applicant: from rotating circular vault septic tank, application number: 205106757104, the internal pressure regulating explosion-proof device.
The second connecting pipe is connected with an air inlet of the dewatering box, a marsh gas cooling assembly (used for condensing, dewatering and drying marsh gas before storing the marsh gas and directly introducing the marsh gas into an air storage tank for storage after dewatering and drying the marsh gas) is also distributed on the dewatering table, and the existing marsh gas cooling assembly can be adopted; a cooling water collecting cavity is arranged below the methane cooling assembly, the cooling water collecting cavity is mainly used for preventing cooling water from flowing into a pipeline of the valve box 4, methane condensate water is very corrosive, so that the service life of a relevant valve in the valve box 4 can be prolonged, an air inlet of the dewatering box is arranged at the upper part of the cooling water collecting cavity, and the methane cooling assembly is distributed at the top of the cooling water collecting cavity; and the lower part of the cooling water collecting cavity is also provided with a drain pipe and a drain pipe valve. The biogas cooling assembly comprises a refrigerating system, and the on-off of a circuit of the refrigerating system is controlled by the target type flow switch.
When in use, because the septic tank gas taking and pressure releasing valve 5 is set according to the normal working pressure required by the self-rotating type round vault septic tank, the pressure is set as follows: the septic tank gas taking and pressure releasing valve 5 is set to be 1.5kpa, the septic tank gas taking and pressure releasing valve 5 is closed when the air pressure in the self-rotating circular vault septic tank is lower than 1.5kpa, gas taking is stopped for maintaining normal decomposition operation in the tank at the moment, the septic tank gas taking and pressure releasing valve 5 is opened when the air pressure in the tank is higher than 1.5kpa, the threshold value of the explosion-proof pressure releasing valve 11 is set according to the safety value of a gas storage tank for storing dried biogas, for example, is set to be 2.5kpa, the explosion-proof pressure releasing valve is closed at the moment, the control pressure difference value set by the pressure difference control valve 8 is for example 0.2kpa, the pressure difference control valve can be opened as long as the air pressure in the gas storage tank is lower than the air pressure in the self-rotating circular vault septic tank by more than 0.2kpa, the flow switch 13 is monitored for realizing biogas flow, and then the refrigeration and dehydration are started by a refrigeration system, and the air pressure in the gas storage tank is lower than the air pressure in the self-rotating circular vault relatively by less than 0.2kpa, the pressure difference control valve is closed (the target flow switch monitors that the refrigerating system is closed at the moment, the energy is saved more), the gas taking state is basically maintained at the state that the self-rotating circular vault septic tank is almost closed, after the air pressure in the self-rotating circular vault septic tank is gradually increased, the positive pressure difference between two ends of the pressure difference control valve exceeds 0.2kpa, the pressure difference control valve is automatically opened for inflation, if the air pressure in the self-rotating circular vault septic tank is continuously more than 2.5kpa in summer, if the air pressure reaches 2.6kpa, the explosion-proof pressure release valve is triggered to open for exhaust, but the pressure difference control valve is closed (at the moment, the pressure difference control valve can reach 2.4kpa at most) so as to prevent the air pressure in the air storage tank from continuously increasing and also relieve the pressure of the self-rotating circular vault septic tank, the explosion is prevented, the air relief valve has the air release speed higher than the methane generation speed, and is closed when the air pressure of the air storage tank is lower than 2.5kpa, the positive pressure difference at two ends of the pressure difference control valve exceeds 0.2kpa, the air charging is automatically opened, the automatic control effect is good, meanwhile, the leaked high-pressure methane is leaked from the tee joint, namely, the high-pressure methane is not subjected to refrigeration and dehydration through the dehydration box, and thus, the energy conservation is realized.
Claims (8)
1. The utility model provides a carbon cyclic utilization of from rotating circular vault septic tank gets gas control assembly, includes from rotating circular vault septic tank, be equipped with marsh gas on the from rotating circular vault septic tank and get trachea, its characterized in that: the explosion-proof pressure relief pipe comprises a valve box, wherein a first connecting pipe, a second connecting pipe and an explosion-proof pressure relief pipe which are connected together through a three-way pipe are arranged in the valve box; a septic tank gas taking valve is distributed on the first connecting pipe, and the first connecting pipe is connected with the methane gas taking pipe; a pressure difference control valve is distributed on the second connecting pipe; and the explosion-proof pressure relief pipe is provided with an explosion-proof pressure relief valve.
2. The carbon recycling gas taking control assembly of the spinning circular vault septic tank of claim 1, wherein: the second connecting pipe is also provided with a target type flow switch; the target type flow switch is distributed on the rear side of the differential pressure control valve.
3. The carbon recycling gas taking control assembly of the spinning circular vault septic tank of claim 1, wherein: the gas taking valve of the septic tank is a pressure release valve.
4. The carbon recycling gas taking control assembly of the spinning circular vault septic tank of claim 1, wherein: the septic tank gas taking valve is a floating ball liquid level switch valve, the floating ball liquid level switch valve is distributed in the self-rotating circular arch-shaped septic tank, and the opening and closing of the valve on the first connecting pipe are controlled through the liquid level height in the self-rotating circular arch-shaped septic tank.
5. The carbon recycling gas taking control assembly of the spinning circular-dome septic tank of claim 2, wherein: also comprises a dewatering box; the second connecting pipe is connected with an air inlet of the dewatering box, the dewatering box further comprises a dewatering table, and a methane cooling assembly is distributed on the dewatering table; a cooling water collecting cavity is arranged below the methane cooling assembly, an air inlet of the dewatering box is formed in the upper part of the cooling water collecting cavity, and the methane cooling assembly is distributed on the top of the cooling water collecting cavity; and the lower part of the cooling water collecting cavity is also provided with a drain pipe and a drain pipe valve.
6. The carbon recycling gas taking control assembly of the spinning circular vault septic tank of claim 5, wherein: the biogas cooling assembly comprises a refrigeration system, and the on-off of a circuit of the refrigeration system is controlled by the target type flow switch.
7. The carbon recycling gas taking control assembly of the spinning circular vault septic tank of claim 1, wherein: and a valve switch is also arranged on the methane taking pipe.
8. The carbon recycling gas taking control assembly of the spinning circular vault septic tank of claim 1, wherein: the three-way pipe of the valve box is also provided with an exhaust small pipe, and the exhaust small pipe is also provided with a one-way air valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122905638.8U CN216785949U (en) | 2021-11-19 | 2021-11-19 | Carbon cyclic utilization of from rotating circular vault septic tank gets gas control assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122905638.8U CN216785949U (en) | 2021-11-19 | 2021-11-19 | Carbon cyclic utilization of from rotating circular vault septic tank gets gas control assembly |
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| Publication Number | Publication Date |
|---|---|
| CN216785949U true CN216785949U (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122905638.8U Active CN216785949U (en) | 2021-11-19 | 2021-11-19 | Carbon cyclic utilization of from rotating circular vault septic tank gets gas control assembly |
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| CN (1) | CN216785949U (en) |
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2021
- 2021-11-19 CN CN202122905638.8U patent/CN216785949U/en active Active
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