CN211871541U

CN211871541U - Anaerobic water seal device

Info

Publication number: CN211871541U
Application number: CN202020269871.4U
Authority: CN
Inventors: 张志�; 刘小磊; 张跃府
Original assignee: Shanghai Haowei Environmental Engineering Co ltd
Current assignee: Shanghai Haowei Environmental Engineering Co ltd
Priority date: 2020-03-07
Filing date: 2020-03-07
Publication date: 2020-11-06
Anticipated expiration: 2030-03-07

Abstract

The utility model discloses an anaerobic water seal device for collecting anaerobic gas in sewage treatment field, the device include the water sealed tank, set up gas outlet on the water sealed tank, set up air inlet, baffle and the intake pipe on water sealed tank upper portion. The baffle sets up in the water seal tank, and the baffle separates the water seal tank for first cavity and second cavity, and the upper portion of first cavity and second cavity has the intercommunication portion of these two cavities of intercommunication, and the air inlet communicates with first cavity, and the gas outlet communicates with the second cavity. One end of the air inlet pipe is communicated with the air inlet, the other end of the air inlet pipe extends to the first cavity, and the highest point of the inner wall of the end part of the air inlet pipe is lower than the lowest point of the communicating part. Compared with the prior art, the anaerobic water sealing device has larger space in the anaerobic water sealing device, so that combustible gas can be buffered conveniently, and stable operation of equipment is facilitated. In addition, the occupied volume of water storage is small, so that the regulation and control of workers are facilitated, and the labor cost is reduced.

Description

Anaerobic water seal device

Technical Field

The utility model belongs to environmental engineering water treatment field specifically is an anaerobic water seal device for sewage treatment device.

Background

In sewage treatment, a water-sealed tank for preventing backfire, isolating a fire source and generating combustible gas in an anaerobic way is often needed. The traditional anaerobic water seal device mainly comprises a circular water seal tank, an air inlet and an air outlet, wherein the upper part of the tank wall of the circular tank is provided with the air inlet and the air outlet which are opposite; the air inlet is provided with a movable valve plate, and a sealing gasket is arranged on the contact surface of the valve plate and the air inlet. The anaerobic water seal device can isolate air, maintain the pressure of the anaerobic reactor, play a role of a flame arrester and have certain steam-water separation effect.

The working principle of the traditional anaerobic water seal device is as follows: the anaerobic water seal device is internally provided with water with a certain height, the air inlet pipe extends into the water, the air outlet pipe opening is reserved on the water surface, gas generated by anaerobic reaction enters the bottom of the water seal tank through the air inlet pipe opening of the water seal tank and is immersed in the water, combustible gas (such as hydrogen sulfide, natural gas and the like) rises from the bottom of the water area and then gathers in the upper space of the liquid of the water seal tank, the gas is continuously separated from the liquid, and after gathering in the upper space to form a certain pressure, the gas is discharged, combusted or discharged from the air outlet pipe opening at the top of the water seal tank. When tempering occurs, the stored water becomes a partition part of a combustible gas flow, main body equipment can be effectively protected, and meanwhile, when the combustible gas passes through a water area space, a part of liquid mixed in the combustible gas is separated after the stored water.

However, in order to ensure that the water can be sealed, pure water in the existing anaerobic water sealing device usually occupies a certain volume of the water-sealed tank, so that the water-sealed tank can actually contain less combustible gas, and the utilization efficiency of the water-sealed tank is reduced. In addition, the excessive volume of the stored water can also cause the increase of the amount of water required to be added and discharged when the stored water is regulated and controlled by personnel, and the labor cost is increased.

Disclosure of Invention

Therefore, in order to solve the above technical problems, it is necessary to provide an anaerobic water sealing device for solving the disadvantages of large volume occupied by stored water, small storage space for combustible gas, time and labor consumption when a worker regulates and controls the amount of stored water in the existing anaerobic water sealing device, so as to improve the use efficiency of the anaerobic water sealing device and save the labor cost.

In order to achieve the above purpose, the technical solution of the present invention is as follows:

the device comprises a water-sealed tank, an air outlet arranged on the water-sealed tank, an air inlet arranged on the upper part of the water-sealed tank, a partition plate and an air inlet pipe. The baffle sets up in the water seal tank, and the baffle separates the water seal tank for first cavity and second cavity, and the upper portion of first cavity and second cavity has the intercommunication portion of these two cavities of intercommunication, and the air inlet communicates with first cavity, and the gas outlet communicates with the second cavity. One end of the air inlet pipe is communicated with the air inlet, the other end of the air inlet pipe extends to the first cavity, and the highest point of the inner wall of the end part of the other end of the air inlet pipe is lower than the lowest point of the communicating part.

The utility model discloses an anaerobic water seal device's an improvement, anaerobic water seal device still include the level gauge, and the level gauge includes the liquid level pipe and sets up in the first needle type valve and the second needle type valve at liquid level pipe both ends, and first mounting hole and the second mounting hole with first cavity intercommunication are still seted up respectively to water sealed tank upper portion and lower part, and first needle type valve and second needle type valve are connected to first mounting hole and second mounting hole respectively.

The utility model discloses an anaerobic water seal device's improvement, the lower of the inner chamber that second needle valve and second mounting hole kneck formed highly is less than the height of intake pipe lower extreme tip inner wall peak.

The utility model discloses an anaerobic water seal device's improvement, first exhaust opening and first cavity intercommunication have still been seted up to water-sealed tank lower part.

The utility model discloses an anaerobic water seal device's an improvement, the second evacuation mouth has still been seted up to water sealed tank lower part, second evacuation mouth and second cavity intercommunication.

The utility model discloses an anaerobic water seal device's improvement still is provided with on one of them at least in air inlet, gas outlet, first evacuation mouth and the second evacuation mouth with its self complex flange interface, and the flange interface is located the water seal jar outside.

The utility model discloses an anaerobic water seal device's an improvement, anaerobic water seal device still include the relief valve, and the relief valve includes the valve body, sets up in the gas vent of valve body one side and sets up in the installing port of valve body opposite side, and water seal tank top still seted up with installing port complex third mounting hole, the relief valve passes through the installing port and the cooperation of third mounting hole sets up in water seal tank top.

The utility model discloses an anaerobic water seal device's improvement, the cooperation is provided with the air duct on the gas vent.

The utility model discloses an anaerobic water seal device's improvement, the volume of first cavity is less than the volume of second cavity.

The utility model discloses an anaerobic water seal device's improvement, the gas outlet sets up in water-sealed tank upper portion.

Compared with the prior art, the anaerobic water sealing device has larger space in the anaerobic water sealing device, so that combustible gas can be buffered conveniently, and stable operation of equipment is facilitated. In addition, the occupied volume of water storage is small, so that the regulation and control of workers are facilitated, and the labor cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic view of an embodiment of an anaerobic water seal apparatus of the present application.

Fig. 2 is a top view of the embodiment of fig. 1.

Description of reference numerals: 1-air inlet, 2-air outlet, 3-first emptying port, 4-second emptying port, 5-clapboard, 6-liquid level meter, 7-safety valve, 8-water seal tank and 9-air inlet pipe.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. However, the present invention is not limited to the embodiments, and the structural, method, or functional changes made by those skilled in the art according to the embodiments are all included in the scope of the present invention.

The technical embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the anaerobic water sealing device of the present invention comprises a water sealed tank 8, a gas outlet 2 arranged on the water sealed tank 8, a gas inlet 1 arranged on the upper part of the water sealed tank 8, a baffle 6 and a gas inlet pipe 9. The air inlet 1 is generally disposed at the upper part of the water sealed tank 8, and is disposed to prevent the water stored in the water sealed tank 8 from flowing back into the upper structure (for example, UASB anaerobic pool) through the air inlet pipe 9. The water-sealed tank 8 is generally made of carbon steel and is made into a cylinder with the top outwards presenting a certain arc shape, and the carbon steel has excellent wear-resisting and corrosion-resisting properties and low cost. The partition board 5 is arranged in the water-sealed tank 8, and the partition board 5 must be made of a water-proof material, generally made of the same carbon steel material as the water-sealed tank 8, or made of a semipermeable membrane with a water-proof effect. The partition plate 5 partitions the water sealed tank 8 into a first chamber and a second chamber, and the upper portions of the first chamber and the second chamber have a communication portion that communicates the two chambers. The partition 5 is generally vertically arranged at the bottom of the water-sealed tank 8, and the upper part of the partition 5 is arranged at a certain distance from the top of the water-sealed tank 8. The air inlet 1 is communicated with the first chamber, the air outlet 2 is communicated with the second chamber, the air inlet 1 and the air outlet 2 can be made of carbon steel, and a carbon steel pipe with the size of DN80 is optimized. One end of the air inlet pipe 9 is communicated with the air inlet 1, the end can be communicated with a previous structure through a DN80 carbon steel pipeline, the other end of the air inlet pipe 9 extends to the first chamber, the highest point of the inner wall of the end part of the other end is lower than the lowest height of the communicating part, and combustible gas (such as methane) can enter the water seal tank 8 from the previous structure through the air inlet pipe 9. In order to prevent the water contained in the first chamber from flowing into the second chamber, the inlet pipe 9 should be arranged at one end as far as possible in the lower part of the first chamber, preferably near the bottom of the first chamber. The addition of the partition plate 5 can reduce the water storage amount required by the liquid seal of the first chamber and improve the effective capacity of the water seal tank 8 to gas.

During the installation, with the vertical setting of baffle 5 in water-sealed tank 8 bottom and make air inlet 1 and gas outlet 2 be located the both sides of baffle 5, the position of air inlet 1 and gas outlet 2 can set up the relative position at water-sealed tank 8 like figure 2, also can set up in same one side, 9 one end of intake pipe are fixed on air inlet 1 and are linked together with preceding structure, the external diameter of preferred intake pipe 9 is unanimous with the internal diameter of air inlet 1, convenient reciprocal anchorage. The 9 other ends of intake pipe are placed in first cavity lower part downwards, and it deposits water to put into in first cavity, deposits the water height and should have submerged inlet tube 9 lower extreme, makes this lower extreme be in the liquid seal state, but can not be higher than the intercommunication portion on 5 upper portions of baffle, otherwise deposits water and flows into the second cavity, influences the work efficiency of water seal jar 8, and water seal volume can set up 0.1 ~ 0.5 times of water seal jar volume usually.

The working principle of the novel anaerobic water sealing device is as follows: water containing impurity combustible gas in former structure passes through the pipeline and enters into the intake pipe 9 upper end of setting on air inlet 1, then enter into intake pipe 9 and enter into from intake pipe 9 lower extreme and deposit water in, moisture and impurity in the gas partly stay in depositing water after depositing water, gas after the purification upwards overflows and deposits the water level and get into the second chamber and gather at water-sealed jar 8 top through the intercommunication department of two chambers, after gas constantly separates and gets into the upper space from the pure water, the gas pressure of gathering in the upper space increases gradually, finally discharge water-sealed jar 8 through gas outlet 2.

When the former structure takes place the tempering, the tempering can not ignite the combustible gas in the water-sealed tank 8 because of the separation of the water storage after entering the water-sealed tank 8 from the inlet tube 9 to reach the purpose of protecting the water-sealed tank 8 and the combustible gas therein.

In the above embodiment, the anaerobic water sealing device may further be provided with a liquid level meter 6, the liquid level meter 6 may adopt a common glass tube liquid level meter in fig. 1, the liquid level meter 6 includes a liquid level tube and a first needle valve and a second needle valve provided at both ends of the liquid level tube, the first mounting hole and the second mounting hole communicated with the first chamber are respectively provided at the upper part and the lower part of the water-sealed tank 8, and the first needle valve and the second needle valve are respectively connected to the first mounting hole and the second mounting hole. Generally speaking, level gauge 6 should be vertical to be set up outside water sealed tank 8, and according to the linker principle, the water yield in water sealed tank 8 and the water gauge 6 is in same height, and the water yield of depositing in water sealed tank 8 can real time monitoring through the liquid level pipe scale in the level gauge 6 outside water sealed tank 8, makes things convenient for the staff to regulate and control the deposit water. Of course, a sensing type liquid level meter or a floating ball type liquid level meter and the like can be adopted, the sensing type liquid level meter is high in measurement precision, the floating ball type liquid level meter is low in cost, and the method is widely applicable to various industries.

In the above embodiment, the height of the lowest point of the inner cavity formed at the interface of the second needle valve and the second mounting hole is lower than the height of the highest point of the inner wall of the lower end part of the air inlet pipe 9. When the liquid level meter 6 is installed, as shown in fig. 1, the second needle valve at the lower end of the liquid level meter 6 is lower than the lower end of the air inlet pipe 9, so that the monitoring range of the liquid level meter 6 covers the critical state of the water seal.

In the above embodiment, the lower portion of the water-sealed tank 8 may further be provided with a first emptying port 3, and the first emptying port 3 is communicated with the first chamber. The first emptying port 3 can adjust the redundant water storage amount in the first chamber and can also play a role in emptying during maintenance and repair. After the water-sealed tank 8 runs for a long time, water stored in the gas can be accumulated in the first cavity, the water stored in the first cavity occupies too much air, and at the moment, the first emptying port 3 can be opened and part of the stored water is discharged. On this basis, the lower part of the water-sealed tank 8 can be provided with a second emptying port 4, and the second emptying port 4 is communicated with the second chamber. Most of moisture in the moisture-containing gas is retained in the water storage in the first chamber, a small amount of moisture enters the second chamber along with the gas, a small amount of water storage can be accumulated at the bottom of the second chamber after the water-sealed tank 8 is used for a long time, the water storage occupies the gas containing space in a squeezing mode, and the second emptying port 4 is used for emptying the water storage. The first drain 3 and the second drain 4 may be disposed at the bottom of the water-sealed tank 8 as shown in fig. 1 and fig. 2, and the two drains may be disposed at the same side or opposite sides. On this basis, at least one of the air inlet 1, the air outlet 2, the first evacuation port 3 and the second evacuation port 4 is provided with a flange interface matched with the air inlet, and the flange interface is positioned outside the water-sealed tank. Preferably, as shown in fig. 2, flange joints are arranged on the 4 joints so as to connect the four joints with valves or other pipelines.

In the above embodiment, the anaerobic water sealing device may further include a safety valve 7, a conventional spring-type safety valve is generally used, the safety valve 7 includes a valve body, an exhaust port disposed on one side of the valve body, and a mounting port disposed on the other side of the valve body, a third mounting hole matched with the mounting port is further disposed on the top of the water-sealed tank 8, and the safety valve 7 is disposed on the top of the water-sealed tank 8 through the cooperation of the mounting port and the third mounting hole. The safety valve 7 can automatically release air to reduce pressure when the gas pressure in the water-sealed tank 8 is too high, so that the gas in the water-sealed tank 8 is ensured to be at safe pressure, and the safety valve 7 is particularly important when the gas outlet 2 of the water-sealed tank 8 is blocked. Of course, the safety valve 7 may be disposed on the top of the water sealed tank 8 as shown in fig. 1 and 2, or may be disposed on the side of the water sealed tank 8. In addition, on the basis, the air outlet can be provided with an air duct in a matching way. Because the water-sealed tank 8 is often used for storing combustible gas such as methane or toxic and harmful gas, the gas can pollute the environment and even harm the health of personnel when being directly released into the atmosphere, and the gas outlet is connected with the gas-guide tube to guide the toxic and harmful gas into the collecting device for harmless treatment. Of course, a lever-type safety valve or a pulse-type safety valve can be adopted, the lever-type safety valve is convenient to operate when the pressure is adjusted, and the pulse-type safety valve is good in sealing performance.

In the above embodiments, the volume of the first chamber is less than the volume of the second chamber. Because the volume of the first chamber determines the amount of the stored water, the reduction of the volume of the first chamber can ensure the existence of the liquid seal while reducing the amount of the stored water of the water-sealed tank 8, thereby further increasing the effective containing amount of the gas of the water-sealed tank 8. Preferably, the volume of the second chamber is 2-4 times of that of the first chamber.

In the above embodiment, the air outlet 2 is located at the upper portion of the water sealed tank 8. Because can store up a small amount of moisture that contains among the combustible gas in the second cavity, when the inner chamber height that highly surpasses gas outlet 2 when depositing water of second cavity, deposit water and can flow into follow-up structures, influence the subsequent treatment effect, so raise gas outlet 2 during the design, prevent to deposit water and reveal, can reduce the frequency of maintaining and evacuation, improve life.

The aspects, embodiments, features and examples of the present invention should be considered illustrative in all respects and not intended to be limiting, the scope of the invention being defined only by the claims. Other embodiments, modifications, and uses will be apparent to those skilled in the art without departing from the spirit and scope of the claimed invention.

The use of the term "comprising" should generally be understood as open-ended and not limiting unless specifically stated otherwise.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention.

The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an anaerobic water seal device, including water sealed tank (8), set up in water sealed tank (8) on gas outlet (2) and set up in water sealed tank (8) upper portion air inlet (1), its characterized in that, anaerobic water seal device still include:

the water seal tank (8) is divided into a first chamber and a second chamber by the partition plate (5), the upper parts of the first chamber and the second chamber are provided with communication parts for communicating the two chambers, the air inlet (1) is communicated with the first chamber, and the air outlet (2) is communicated with the second chamber;

the air inlet pipe (9), one end of the air inlet pipe (9) is communicated with the air inlet (1), the other end of the air inlet pipe (9) extends to the first chamber, and the highest point of the inner wall of the end part of the other end is lower than the lowest height of the communicating part.

2. The anaerobic water sealing device according to claim 1, further comprising a liquid level meter (6), wherein the liquid level meter (6) comprises a liquid level pipe and a first needle valve and a second needle valve which are arranged at two ends of the liquid level pipe, the upper part and the lower part of the water sealing tank (8) are respectively provided with a first mounting hole and a second mounting hole which are communicated with the first chamber, and the first needle valve and the second needle valve are respectively connected to the first mounting hole and the second mounting hole.

3. The anaerobic water sealing device according to claim 2, wherein the lowest height of the inner cavity formed at the interface of the second needle valve and the second mounting hole is lower than the highest height of the inner wall of the lower end part of the air inlet pipe (9).

4. An anaerobic water seal device according to any one of claims 1 to 3, characterized in that a first emptying port (3) is further formed at the lower part of the water seal tank (8), and the first emptying port (3) is communicated with the first chamber.

5. The anaerobic water seal device according to claim 4, characterized in that a second emptying port (4) is further formed in the lower portion of the water seal tank (8), and the second emptying port (4) is communicated with the second chamber.

6. The anaerobic water seal device according to claim 5, characterized in that at least one of the air inlet (1), the air outlet (2), the first drain port (3) and the second drain port (4) is provided with a flange interface matched with the air inlet and the air outlet, and the flange interface is positioned outside the water seal tank (8).

7. The anaerobic water sealing device according to any one of claims 1 to 3, further comprising a safety valve (7), wherein the safety valve (7) comprises a valve body, an exhaust port arranged on one side of the valve body and a mounting port arranged on the other side of the valve body, a third mounting hole matched with the mounting port is further formed in the top of the water-sealed tank (8), and the safety valve (7) is arranged on the top of the water-sealed tank (8) through the mounting port and the third mounting hole in a matched manner.

8. The anaerobic water seal device of claim 7, wherein the exhaust port is provided with a gas-guide tube.

9. An anaerobic water seal according to any of claims 1 to 3 wherein the volume of the first chamber is less than the volume of the second chamber.

10. An anaerobic water seal according to any of claims 1 to 3, characterized in that the air outlet (2) is arranged at the upper part of the water seal tank (8).