Rural sewage recycling system and application method thereof

Abstract

The present application relates to sewage treatment technical field, propose a kind of rural sewage recycling system and its application method, including carrier, reaction tank, steam generator and turbine generator, wherein, reaction tank includes tank body, flow passage layer, heat preservation layer, exhaust pipe, vacuum chamber and explosion-proof valve, tank body is arranged in the upper layer of carrier, flow passage layer is sleeved in tank body outer, heat preservation layer is wrapped flow passage layer, exhaust pipe is connected with the inner cavity of reaction tank and the combustion medium input end of steam generator, vacuum chamber is arranged in tank body, and vacuum chamber is connected with the inner cavity of tank body and the outside between explosion-proof valve;Steam generator and turbine generator are arranged in the lower layer of carrier, steam output end of steam generator is communicated flow passage layer and turbine generator.The present application improves the integration degree of sewage treatment system, significantly reduces the floor area;While the present processing system can promote turbine generator to generate electricity, and realize the temperature regulation of reaction tank, to ensure the normal progress of sewage treatment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, in particular to a rural sewage recycling system and an application method thereof. BACKGROUND

[0002] In the sewage treatment process, mainly through physical filtration and chemical reaction and other means, so that the water quality reaches a certain discharge standard or can be reused standard, so as to protect the environment and prevent water pollution. At present, rural sewage treatment faces some special challenges and difficulties, among which the population in rural areas is scattered, there are many sewage generation points, and the scale of each sewage point is small, so it is not suitable to build large-scale sewage treatment sites. The problem is particularly prominent, which significantly increases the difficulty and cost of sewage treatment.

[0003] The present application discloses a municipal sewage treatment system, including: a pre-sedimentation tank; an aeration tank connected with the pre-sedimentation tank, the aeration tank is provided with a liftable and rotatable aeration device; a sedimentation tank connected with the aeration tank; a sludge treatment unit, including a sludge circulation pipeline for returning most of the activated sludge in the sedimentation tank to the aeration tank, and a sludge discharge pipeline for discharging the remaining sludge in the sedimentation tank; an anaerobic fermentation tank for receiving sludge from the pre-sedimentation tank and the sludge discharge pipeline to produce biogas through anaerobic fermentation; a heat preservation and heating unit for supplying heat generated by burning biogas to the aeration tank to warm up.

[0004] As in the above scheme, the sewage is treated by the pre-sedimentation tank, the aeration tank and the anaerobic fermentation tank, but this is only suitable for large-scale sewage treatment. The rural areas do not have the construction conditions of the related sites, and the centralized transportation and treatment of sewage will significantly increase the difficulty and cost of sewage treatment. Therefore, how to miniaturize and multifunctionalize the sewage treatment equipment is a problem to be solved. SUMMARY

[0005] Therefore, the present application provides a rural sewage recycling system with high integration and diversified functions and an application method thereof, so as to solve the problem that the existing sewage treatment system is not suitable for rural sewage treatment, thereby reducing the cost of sewage treatment.

[0006] The technical scheme of the present application is as follows:

[0007] On the one hand, the present application provides a rural sewage recycling system, including a carrier, a reaction tank, a steam generator and a turbine generator, wherein,

[0008] The carrier is divided into an upper layer and a lower layer;

[0009] The reaction tank comprises a tank body, a flow channel layer, a heat preservation layer, an exhaust pipe, a vacuum chamber and an explosion-proof valve, the tank body is arranged on the upper layer of the carrier, the flow channel layer is sleeved outside the tank body, the heat preservation layer wraps the flow channel layer, one end of the exhaust pipe is communicated with the inner cavity of the reaction tank, the other end is connected with the combustion medium input end of the steam generator, the vacuum chamber is arranged in the tank body, and the explosion-proof valve is arranged between the vacuum chamber and the inner cavity of the tank body and the outside world.

[0010] The steam generator and the turbine generator are arranged on the lower layer of the carrier, and the steam output end of the steam generator is communicated with the flow channel layer and the turbine generator.

[0011] On the basis of the above technical scheme, preferably, the reaction tank further comprises a liquid discharge pipe, a steam pipeline and a series connection pipe, wherein,

[0012] The liquid discharge pipe is arranged at the middle section of the reaction tank, one end of the liquid discharge pipe is communicated with the inner cavity of the tank body, and the other end is a free end;

[0013] The flow channel layer is divided into two sections, the two sections of the flow channel layer are sleeved on the tank body, and the two sections of the flow channel layer are oppositely arranged on the two sides of the liquid discharge pipe;

[0014] The two ends of the series connection pipe are respectively communicated with one flow channel layer, and the series connection pipe is arranged on the side of the flow channel layer away from the steam generator.

[0015] On the basis of the above technical scheme, preferably, further comprising an end cover, a plurality of connecting screws and a gland, the carrier comprises a main frame body, a middle support and an end support, wherein,

[0016] The steam generator and the turbine generator are arranged on the main frame body;

[0017] The middle support is connected with the carrier and the steam generator;

[0018] The end support is arranged on the steam generator and the turbine generator, and the two end supports are oppositely arranged on the two sides of the middle support;

[0019] The reaction tank is arranged on the middle support and the end support;

[0020] The end cover is arranged on the two ends of the reaction tank, one side of the end cover close to the main frame body is connected with the end support through the connecting screw;

[0021] The two end covers away from the main frame body are connected in series through the connecting screw, and are connected in series with the gland;

[0022] The gland is arranged corresponding to the middle support and holds the tank body.

[0023] On the basis of the above technical scheme, preferably, further comprising a reinforcing support, and the gland comprises a pressure frame, a connecting plate and a connecting rod, wherein,

[0024] The vacuum chamber is arranged at the middle section of the tank body, and the reinforcing support is arranged in the vacuum chamber;

[0025] The pressing frame is an arc-shaped frame structure, and the pressing frame presses the middle section of the tank body and abuts against the end of the flow channel layer and the thermal insulation layer;

[0026] The explosion-proof valve between the vacuum chamber and the outside world is arranged on the inner side of the pressing frame;

[0027] The connecting plate is arranged on the pressing frame and is connected with the connecting screw rod in series;

[0028] A plurality of connecting rods are arranged on the pressing frame, and the connecting rods cover the explosion-proof valve.

[0029] On the basis of the above technical scheme, preferably, the end cover comprises a flange plate, a sleeve and an inner ring, wherein,

[0030] The flange plate abuts against the end of the reaction tank and is connected with the connecting screw rod in series;

[0031] The sleeve is arranged on the side of the flange plate and is sleeved on the thermal insulation layer;

[0032] The inner ring is arranged on the same side of the flange plate as the sleeve, and the inner ring is buckled between the tank body and the flow channel layer.

[0033] On the basis of the above technical scheme, preferably, the tank body further comprises a chamber wall plate arranged in the tank body to form a sector-shaped vacuum chamber and to separate a first inner cavity, a second inner cavity and a communication cavity of the tank body;

[0034] The first inner cavity and the second inner cavity are located on the two sides of the communication cavity.

[0035] On the basis of the above technical scheme, preferably, a communication pipe is further arranged on the chamber wall plate, and the communication pipe penetrates through the vacuum chamber to connect the first inner cavity and the second inner cavity.

[0036] On the basis of the above technical scheme, preferably, a support frame is further arranged, and the support frame comprises a limiting frame and a support rod, wherein,

[0037] At least two limiting frames are arranged in the explosion-proof valve between the vacuum chamber and the outside world, one of the limiting frames is connected with the inner wall of the explosion-proof valve, and the other limiting frame abuts against the valve plate of the explosion-proof valve;

[0038] The limiting frame is a spoke structure, the valve plate is provided with an explosion-proof notch corresponding to the spoke of the limiting frame;

[0039] The two ends of the support rod are connected with the two limiting frames respectively.

[0040] On the basis of the above technical scheme, preferably, a stirring paddle, a first commutator, a second commutator and a transmission shaft are further arranged, wherein,

[0041] The stirring paddle is arranged in the reaction tank, and the rotating shaft of the stirring paddle extends into the reaction tank;

[0042] The first commutator is arranged on the rotating shaft of the stirring paddle;

[0043] The second commutator is arranged on the rotating shaft of the turbine generator;

[0044] One end of the transmission shaft is connected with the first commutator, and the other end is connected with the second commutator.

[0045] In one aspect, the application provides an application method of the rural sewage recycling system, comprising the following steps:

[0046] S1, supplying the sewage to be treated into the reaction tank;

[0047] S2, supplying the water source and the combustion medium into the steam generator;

[0048] S3, in the steam generator, the combustion medium is combusted to heat the water to generate steam;

[0049] S4, the steam enters the turbine generator through the pipeline to generate electric energy, and another part of the steam enters the flow channel layer through the pipeline to heat the reaction tank to realize temperature regulation;

[0050] S5, the combustible gas such as methane generated by the reaction of the sewage in the reaction tank enters the combustion chamber of the steam generator through the exhaust pipe to promote combustion.

[0051] The rural sewage recycling system and the application method thereof have the following beneficial effects compared with the prior art:

[0052] (1) By arranging the reaction tank, the steam generator and the turbine generator on the carrier, the integration degree of the sewage treatment system is improved, the occupied area is significantly reduced, and the sewage treatment system is suitable for rural sewage treatment; at the same time, the combustible gas generated by the sewage treatment, the rural biogas and the heat generated by the combustion of solid waste can be fully utilized to generate steam through the steam generator to drive the turbine generator to generate electricity, and the steam can be introduced into the flow channel layer to regulate the temperature of the reaction tank, so that the normal operation of the sewage treatment is ensured;

[0053] (2) By arranging the vacuum chamber in the reaction tank and installing the explosion-proof valve, when the pressure in the reaction tank increases rapidly due to gas generation, the explosion-proof valve between the vacuum chamber and the inner cavity of the tank body will be opened under the vacuum action of the vacuum chamber, so that the gas in the tank body will quickly enter the vacuum chamber to avoid the problem of gas explosion caused by untimely pressure relief, and if the gas continues to increase, the explosion-proof valve between the tank body and the outside will be opened to discharge the gas to the outside to avoid explosion;

[0054] (3) by setting the flow channel layer to two sections, this facilitates the setting of a liquid discharge pipe in the middle section of the reaction tank, to improve the convenience of pollution discharge, at the same time, this also leaves a position for setting a vacuum chamber, and the reaction tank at this position is supported by a carrier, which is conducive to ensuring the stability of the overall structure, and facilitates exhaust pressure relief;

[0055] (4) by connecting the end cover with the end support on the steam generator and the turbine generator through the connecting screw rod, the relative positioning of the reaction tank relative to the steam generator and the turbine generator can be realized, the subsequent pipeline connection is facilitated, and the assembly convenience of the system is improved;

[0056] (5) by setting the gland, the reaction kettle can be pressed and held, and the reaction kettle is clamped and fixed in cooperation with the middle support, so that the overall structure is more stable, and the gland is connected in series on the connecting screw rod for connecting the two end covers, so that no additional fixing components are needed, and the assembly convenience is improved;

[0057] (6) by setting the support frame in the explosion-proof valve, the valve plate of the explosion-proof valve can be supported, so as to reduce the influence of vacuum on the valve plate, and the explosion-proof notch of the valve plate corresponds to the spoke of the support frame, which further reduces the influence of vacuum on the valve plate, and makes the explosion-proof valve only open outward, improves the safety and structural reliability of the application. BRIEF DESCRIPTION OF DRAWINGS

[0058] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0059] Figure 1 It is a perspective view of the rural sewage recycling system of the present application;

[0060] Figure 2 It is a perspective view of the rural sewage recycling system of the present application; Figure 1 It is an enlarged view of the structure of point A;

[0061] Figure 3 It is a front view of the rural sewage recycling system of the present application;

[0062] Figure 4 It is a top view of the rural sewage recycling system of the present application;

[0063] Figure 5 It is a sectional view of the reaction tank of the rural sewage recycling system of the present application;

[0064] Figure 6 It is a perspective view of the rural sewage recycling system of the present application; Figure 5Enlarged view of the middle B point structure;

[0065] Figure 7 Explosive view of the rural sewage recycling system of the present application;

[0066] Figure 8 Perspective view of the pressing frame of the rural sewage recycling system of the present application;

[0067] Figure 9 Perspective view of the support frame of the rural sewage recycling system of the present application;

[0068] Figure 10 Structural view of the vacuum chamber of the rural sewage recycling system of the present application;

[0069] Figure 11 Structural view of the stirring transmission of the rural sewage recycling system of the present application;

[0070] Figure 12 Partial sectional view of the reaction tank of the rural sewage recycling system of the present application;

[0071] In the figure: 1, carrier frame; 11, main frame body; 12, middle support; 13, end support; 2, reaction tank; 21, tank body; 22, flow channel layer; 23, heat preservation layer; 24, exhaust pipe; 25, vacuum chamber; 251, chamber wall plate; 26, explosion-proof valve; 261, valve piece; 2601, explosion-proof notch; 27, liquid discharge pipe; 28, steam pipeline; 29, series connection pipe; 201, first inner cavity; 202, second inner cavity; 203, communication cavity; 3, steam generator; 4, turbine generator; 5, end cover; 51, flange plate; 52, sleeve; 53, inner ring; 6, connecting screw; 7, gland; 71, pressing frame; 72, connecting plate; 73, connecting rod; 8, reinforcing support; 9, communication pipe; 10, support frame; 1011, limit frame; 10111, spoke; 1012, support rod; 1013, top plate; 111, stirring paddle; 112, first commutator; 113, second commutator; 114, transmission shaft. DETAILED DESCRIPTION

[0072] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0073] As Figures 1-12As shown, the rural sewage reuse system of the present invention includes a carrier frame 1, a reaction tank 2, a steam generator 3, a turbine generator 4, an end cover 5, a connecting screw 6, a pressure cover 7, a reinforcing bracket 8, a connecting pipe 9, a support frame 10, a stirring paddle 111, a first commutator 112, a second commutator 113, and a drive shaft 114.

[0074] like Figures 1-4 As shown, the carrier frame 1 is divided into an upper layer and a lower layer; the reaction vessel 2 includes a vessel body 21, a flow channel layer 22, an insulation layer 23, an exhaust pipe 24, a vacuum chamber 25, and an explosion-proof valve 26. The vessel body 21 is located on the upper layer of the carrier frame 1, the flow channel layer 22 is fitted over the vessel body 21, the insulation layer 23 wraps around the flow channel layer 22, one end of the exhaust pipe 24 is connected to the inner cavity of the reaction vessel 2, and the other end is connected to the combustion medium input end of the steam generator 3. The vacuum chamber 25 is located inside the vessel body 21, and an explosion-proof valve 26 is provided between the vacuum chamber 25 and the inner cavity of the vessel body 21 and the outside world; the steam generator 3 and the turbine generator 4 are located on the lower layer of the carrier frame 1, and the steam output end of the steam generator 3 is connected to the flow channel layer 22 and the turbine generator 4.

[0075] As described above, in the wastewater reuse system, the steam generator 3 and the turbine generator 4 are located on the lower layer of the carrier 1, while the reaction tank 2 is located on the upper layer of the carrier 1.

[0076] When the application is carried out, the sewage is fed into the tank 21 of the reaction tank 2 for anaerobic reaction and other wastewater treatment processes. During this process, the biogas and other combustible gases generated are discharged through the exhaust pipe 24 and supplied to the combustion chamber of the steam generator 3 to promote combustion.

[0077] After the steam generator 3 heats the water inside to generate steam, most of the steam is supplied to the turbine generator 4 through the pipeline to generate electricity. At the same time, some steam is supplied into the flow channel layer 22 of the reaction tank 2 to heat the reaction tank 2, thereby regulating the temperature of the sewage in the tank 21 and ensuring that the sewage is at a suitable temperature, which is conducive to the normal growth of sewage treatment bacteria, thus ensuring the normal operation of the treatment process. Then the steam is discharged.

[0078] In some embodiments, the steam generator 3 not only relies on combustible gas generated from wastewater for combustion, but it can also be connected to a rural biogas digester for gas supply, or rely on the heat generated by the combustion of solid waste to produce steam.

[0079] In some embodiments, control components, such as regulating valves, are provided between the steam generator 3 and the turbine generator 4, and between the steam generator 3 and the flow channel layer 22. By adjusting the opening of the regulating valve, the steam output can be controlled to ensure stable system operation.

[0080] In the structure of the reaction tank 2, the heat preservation layer 23 is used for heat preservation work of the reaction tank 2, so as to reduce the loss of heat as much as possible, and meanwhile avoid the influence of external temperature on the normal work of the reaction tank 2.

[0081] In order to ensure the safety of the system operation, the reaction tank 2 is provided with a vacuum chamber 25, and the vacuum chamber 25 is provided with two explosion-proof valves 26, so that when the pressure in the tank body 21 is too large due to gas generation, the gas will first rush to open the explosion-proof valve 26 between the vacuum chamber 25 and the inner cavity of the tank body 21, so that the gas enters the vacuum chamber 25, thereby achieving pressure reduction of the tank body 21;

[0082] In this structure, the vacuum chamber 25 is under negative pressure, so that after the explosion-proof valve 26 is opened, the gas will quickly flow into the vacuum chamber 25, so as to avoid the problem of gas explosion due to too slow pressure reduction of the tank body 21, and meanwhile this structure can avoid the gas leakage generated by sewage reaction;

[0083] When the space of the vacuum chamber 25 is not enough to achieve pressure reduction and explosion-proof, the explosion-proof valve 26 between the vacuum chamber 25 and the outside is opened again as the last protection means to discharge the gas to the outside.

[0084] In some embodiments, a methane sensor or other gas detection sensor is arranged in the vacuum chamber 25, or a sensor is arranged on the explosion-proof valve 26 between the vacuum chamber 25 and the inner cavity of the tank body 21, which is used to detect whether the vacuum chamber 25 is abnormal;

[0085] When the explosion-proof valve 26 is detected to be abnormal, or methane or other gas appears in the vacuum chamber 25, it means that the explosion-proof valve 26 has been opened, the gas has entered the vacuum chamber 25, or there is a leakage problem in the vacuum chamber 25, so that maintenance or explosion-proof measures can be taken in time.

[0086] Further, the detection structure can also be used for active explosion-proof work, in which a gas pressure sensor is arranged in the tank body 21 and the vacuum chamber 25, and an explosion assembly is arranged on the explosion-proof valve 26 between the vacuum chamber 25 and the outside, so that when the explosion-proof valve 26 between the vacuum chamber 25 and the inner cavity of the tank body 21 is detected to be opened, if the value detected by the gas pressure sensor reaches a preset threshold, the explosion assembly will be exploded to open the explosion-proof valve 26 between the vacuum chamber 25 and the outside, thereby achieving active pressure relief work; in order to ensure the safety of the active pressure relief explosion-proof work, a camera and a loudspeaker can be used to warn the surrounding personnel.

[0087] The explosion assembly can use appropriate explosives.

[0088] For example, Figure 9As shown, the support frame 10 includes a limiting frame 1011 and a support rod 1012. At least two limiting frames 1011 are provided inside the explosion-proof valve 26 between the vacuum chamber 25 and the outside. One limiting frame 1011 is connected to the inner wall of the explosion-proof valve 26, and the other limiting frame 1011 abuts against the valve plate 261 of the explosion-proof valve 26. The limiting frame 1011 has a spoke structure, and the valve plate 261 has explosion-proof markings 2601, which correspond to the spokes 10111 of the limiting frame 1011. Each end of the support rod 1012 is connected to a limiting frame 1011.

[0089] As described above, since the explosion-proof valve 26 is configured to correspond to the vacuum chamber 25, in order to reduce the impact of vacuum negative pressure on the valve plate 261 and ensure the stability of the valve plate 261, a support frame 10 is provided in the explosion-proof valve 26. One limiting frame 1011 of the support frame 10 is fixed to the inner wall of the explosion-proof valve 26, and the other limiting frame 1011 abuts against the valve plate 261. The two limiting frames 1011 are connected by a support rod 1012. The explosion-proof groove 2601 of the valve plate 261 corresponds to the spoke 10111 of the limiting frame 1011. This can prevent the valve plate 261 from cracking inward due to excessive negative pressure.

[0090] In some embodiments, the limiting frame 1011 is provided with a top plate 1013, and the top plate 1013 has a through hole, which can provide more stable support for the valve plate 261 without affecting the exhaust.

[0091] In some embodiments, the support rod 1012 is configured as a telescopic rod, so that when assembling the valve plate 261, the position of the limiting frame 1011 or the top plate 1013 can be adjusted by the support rod 1012, thereby eliminating the influence of factors such as welding deviation between components and stress deformation, ensuring that the valve plate 261 can stably fit the limiting frame 1011 or the top plate 1013 after assembly, and avoiding the valve plate 261 from breaking due to negative pressure.

[0092] like Figures 5-7 As shown, the reaction vessel 2 also includes a drain pipe 27, a steam pipe 28, and a connecting pipe 29. The drain pipe 27 is located in the middle section of the reaction vessel 2, with one end connected to the inner cavity of the vessel body 21 and the other end being a free end. The flow channel layer 22 is divided into two sections, which are fitted onto the vessel body 21 and are positioned opposite each other on both sides of the drain pipe 27. Each end of the connecting pipe 29 is connected to one flow channel layer 22, and the connecting pipe 29 is located on the side of the flow channel layer 22 away from the steam generator 3.

[0093] As described above, the flow channel layer 22 is provided in two sections, which is a split structure. This makes it convenient to lay out the drain pipe 27 in the middle section of the reaction tank 2 so that the sewage and sediment in the tank 21 can be discharged.

[0094] In order to facilitate the introduction of steam into two flow channel layers 22, two flow channel layers 22 are communicated through a series pipe 29, so that only one flow channel layer 22 needs to be communicated with the steam pipeline 28, and the other flow channel layer 22 is provided with an exhaust pipeline to exhaust steam; in this structure, the series pipe 29 also realizes the relative positioning of the two flow channel layers 22;

[0095] Correspondingly, the heat preservation layer 23 is also provided with a two-section structure, and the end of the heat preservation layer 23 is provided with a notch for the steam pipeline 28 to pass through, so that the steam pipeline 28 connects the flow channel layer 22 and the steam generator 3; the sectional structure facilitates the layout and installation of the pipeline.

[0096] As shown in Figure 3 , the carrier 1 includes a main frame body 11, a middle support 12 and an end support 13, wherein the steam generator 3 and the turbine generator 4 are arranged on the main frame body 11; the middle support 12 is connected with the carrier 1 and the steam generator 3; the end support 13 is arranged on the steam generator 3 and the turbine generator 4, and the two end supports 13 are located on the two sides of the middle support 12; the reaction tank 2 is arranged on the middle support 12 and the end support 13;

[0097] As described above, when assembling the system, the steam generator 3 and the turbine generator 4 are installed on the main frame body 11, and the end support 13 is arranged on the steam generator 3 and the turbine generator 4, so as to conveniently support the reaction tank 2, so as to ensure the relative position of the steam generator 3, the turbine generator 4 and the reaction tank 2. This facilitates the connection of the pipeline between the components, reduces the assembly error, and improves the convenience of assembly.

[0098] As shown in Figures 1-4 , the end cover 5 is arranged on the two ends of the reaction tank 2, and the connecting screw rod 6 is arranged in multiple, the side of the end cover 5 close to the main frame body 11 is connected with the end support 13 through the connecting screw rod 6; the side of the two end covers 5 away from the main frame body 11 is connected in series through the connecting screw rod 6, and is connected in series with the gland 7; the gland 7 is arranged corresponding to the middle support 12 and holds the tank body 21;

[0099] As described above, the flow channel layer 22 and the heat preservation layer 23 in the system are arranged layer by layer on the tank body 21, in order to ensure the stability of the structure, the inner end of the flow channel layer 22 and the heat preservation layer 23 abuts on the middle support 12, and the other end is fixed through the end cover 5;

[0100] Specifically, when installing the end cover 5, in order to ensure that the installation position of the end cover 5 is correct, and the position of the reaction tank 2 relative to the steam generator 3 is correct, the side close to the steam generator 3 is connected and fixed with the end support 13 on the steam generator 3 and the turbine generator 4 through the connecting screw rod 6, so as to position the end cover 5 and the reaction tank 2, so that the middle section of the reaction tank 2 can be aligned with the middle support 12, and then the two sides of the end cover 5 away from the steam generator 3 are connected and fixed through the long connecting screw rod 6; in this way, the installation stability of the flow channel layer 22, the heat preservation layer 23 and the end cover 5 is ensured, and the positioning of the reaction tank 2 relative to the steam generator 3 is realized.

[0101] In order to further ensure the structural stability of the reaction tank 2, the gland 7 is arranged to clamp and fix the reaction tank 2 in cooperation with the middle support 12.

[0102] As shown in Figure 2 and Figure 8 , the gland 7 comprises a pressing frame 71, a connecting plate 72 and a connecting rod 73, wherein the vacuum chamber 25 is arranged in the middle section of the tank body 21, and the reinforcing support 8 is arranged in the vacuum chamber 25; the pressing frame 71 is an arc-shaped frame structure, and the pressing frame 71 clamps the middle section of the tank body 21 and abuts against the end of the flow channel layer 22 and the heat preservation layer 23; the explosion-proof valve 26 between the vacuum chamber 25 and the outside is located on the inner side of the pressing frame 71; the connecting plate 72 is arranged on the pressing frame 71 and connected with the connecting screw rod 6 in series; and the connecting rod 73 is arranged in multiple on the pressing frame 71, and the connecting rod 73 covers the explosion-proof valve 26.

[0103] As described above, the vacuum chamber 25 is arranged in the middle section of the tank body 21, and since the middle section of the tank body 21 needs to be provided with a drain pipe 27, the flow channel layer 22 and the heat preservation layer 23 cannot be arranged at this position. By arranging the vacuum chamber 25 at this position, the heat loss can be reduced as much as possible by relying on vacuum, and the influence of the external temperature on the sewage reaction treatment can also be reduced, so as to ensure the normal progress of the sewage treatment;

[0104] When the gland 7 is arranged, since the middle section of the reaction tank 2 is not provided with the flow channel layer 22 and the heat preservation layer 23, the gland 7 can be arranged at this position;

[0105] Specifically, the pressing frame 71 clamps the tank body 21 of the reaction tank 2, and the connecting plate 72 is connected with the connecting screw rod 6 in series, so that the connecting screw rod 6 not only connects and fixes the two end covers 5, but also realizes the fixation of the gland 7;

[0106] In order to reduce the risk of explosion of the explosion-proof valve 26, the connecting rod 73 is arranged on the pressing frame 71 to cover the explosion-proof valve 26, so as to avoid the problem of splashing of fragments when the explosion-proof valve 26 is pressure released, and the connecting rod 73 can also improve the structural strength of the pressing frame 71;

[0107] The reinforcing support 8 is used to increase the structural strength of the vacuum chamber 25 to avoid the collapse of the tank body 21 caused by negative pressure.

[0108] In some embodiments, the connecting rod 73 can be replaced by a wire mesh.

[0109] As shown in the drawings, the end cover 5 comprises a flange plate 51, a sleeve 52 and an inner ring 53, wherein the flange plate 51 abuts against the end of the reaction tank 2 and is connected with the connecting screw rod 6 in series; the sleeve 52 is arranged on the side of the flange plate 51 and is sleeved on the heat preservation layer 23; the inner ring 53 is arranged on the same side of the flange plate 51 as the sleeve 52, and the inner ring 53 is buckled between the tank body 21 and the flow channel layer 22. Figure 6 As described above, when installing the end cover 5, the end cover 5 is buckled on the tank body 21 through the inner ring 53 for the relative positioning of the end cover 5 and the reaction tank 2, and the sleeve 52 is sleeved on the heat preservation layer 23 to achieve the clamping positioning of the flow channel layer 22 and the heat preservation layer 23.

[0110] The flange plate 51 is used to install and fix the connecting screw rod 6 to achieve the relative fixation of the two end covers 5.

[0111] The tank body 21 further comprises a chamber wall plate 251 arranged in the tank body 21 to form a fan-shaped vacuum chamber 25 and to separate the first inner cavity 201, the second inner cavity 202 and the communication cavity 203 of the tank body 21; the first inner cavity 201 and the second inner cavity 202 are located on the two sides of the communication cavity 203.

[0112] As described above, when arranging the vacuum chamber 25, the chamber wall plate 251 is used to form a fan shape, so that the inner wall of the tank body 21 can be stably supported by the chamber wall plate 251, and the communication cavity 203 is formed to avoid the discontinuity of the first inner cavity 201 and the second inner cavity 202, thereby ensuring the flow of sewage.

[0113] In this structure, the communication cavity 203 corresponds to the middle support 12, and the drain pipe 27 is arranged corresponding to the communication cavity 203.

[0114] As shown in the drawings, the communication pipe 9 is arranged on the chamber wall plate 251, and the communication pipe 9 penetrates the vacuum chamber 25 to connect the first inner cavity 201 and the second inner cavity 202.

[0115] Figure 10

[0116] ​​As the above structure, in order to ensure the flow of gas, the communication pipe 9 is arranged on the chamber wall plate 251 to communicate the upper area of the first inner cavity 201 and the second inner cavity 202, so that when the explosion-proof valve 26 is arranged between the vacuum chamber 25 and the tank body 21, the explosion-proof valve 26 is arranged only in one inner cavity, and the gas in the other inner cavity flows to the inner cavity in which the explosion-proof valve 26 is arranged through the communication pipe 9, so as to realize pressure relief;

[0117] In some embodiments, one explosion-proof valve 26 is arranged on each side of the vacuum chamber 25 to correspond to the first inner cavity 201 and the second inner cavity 202.

[0118] In some embodiments, the wall thickness of the tank body 21 is X, and the wall thickness of the part of the tank body 21 corresponding to the vacuum chamber 25 is 1.3-1.6X, and the wall thickness of the chamber wall plate 251 is 1.5-2X, so that the part of the tank wall corresponding to the vacuum chamber 25 can withstand the force of the vacuum chamber 25 without deformation, and the chamber wall plate 251 can withstand the force of the tank body 21 and the vacuum chamber 25 without deformation.

[0119] In some embodiments, the axial length of the vacuum chamber 25 accounts for one seventh to one eighth of the total length of the tank body 21, so as to ensure that there is enough space to realize pressure relief.

[0120] In some embodiments, a vacuum pump is arranged on the outer wall of the tank body 21, which is used to control the vacuum degree of the vacuum chamber 25; in specific applications, when the explosion-proof valve 26 between the vacuum chamber 25 and the inner cavity of the tank body 21 is opened, the gas in the tank body 21 will quickly flow into the vacuum chamber 25, at this time, in order to protect the explosion-proof valve 26 between the vacuum chamber 25 and the outside, the vacuum chamber 25 can be pumped to exhaust and reduce pressure.

[0121] As shown in Figure 11 and Figure 12 , the stirring paddle 111 is arranged in the reaction tank 2, and the rotating shaft of the stirring paddle 111 extends into the reaction tank 2; the first reversing gear 112 is arranged on the rotating shaft of the stirring paddle 111; the second reversing gear 113 is arranged on the rotating shaft of the turbine generator 4; one end of the transmission shaft 114 is connected with the first reversing gear 112, and the other end is connected with the second reversing gear 113;

[0122] As the above structure, in some embodiments, the turbine generator 4 is not only used for power generation, but also used for stirring and treating sewage;

[0123] Specifically, when the steam generated by the steam generator 3 drives the turbine generator 4 to generate power, the steam drives the rotating shaft of the turbine generator 4 to rotate, and the power of the rotating shaft of the turbine generator 4 is also transmitted to the stirring paddle 111 through the second reversing gear 113, the transmission shaft 114 and the first reversing gear 112, so as to drive the stirring paddle 111 to stir the sewage, thereby fully providing the sewage treatment effect.

[0124] Specifically, the first commutator 112 and the second commutator 113 can adopt a bevel gear structure to realize power transmission commutation.

[0125] In some embodiments, a clutch device can be arranged on the first commutator 112, the second commutator 113 or the transmission shaft 114, so that the power transmission is disconnected when the sewage does not need to be stirred, and the power consumption is reduced to ensure the power generation capacity.

[0126] Specifically, when the sewage needs to be discharged, the stirring paddle 111 can be rotated through the above power transmission structure to stir the sediment in the tank 21, so that the internal impurities can be fully discharged.

[0127] In some embodiments, the rotating shaft of the stirring paddle 111 is also connected with an independent driving motor, and a clutch device is arranged between the driving motor and the stirring paddle 111, so that the stirring paddle 111 can be selectively driven by the independent motor or the main shaft of the turbine generator 4.

[0128] The application method of the rural sewage recycling system comprises the following steps:

[0129] S1, supplying the sewage to be treated into the reaction tank 2;

[0130] S2, supplying water source and combustion medium to the steam generator 3;

[0131] S3, in the steam generator 3, the combustion medium is combusted to heat the water to generate steam;

[0132] S4, the steam enters the turbine generator 4 through the pipeline to generate electric energy, and another part of the steam enters the flow channel layer 22 through the pipeline to heat the reaction tank 2 to realize temperature regulation;

[0133] S5, the combustible gas such as methane generated by the reaction of the sewage in the reaction tank 2 enters the combustion chamber of the steam generator 3 through the exhaust pipe 24 to promote combustion.

[0134] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A rural wastewater re-use system characterised in that: It comprises a carrier (1), a reaction tank (2), a steam generator (3) and a turbine generator (4), wherein, The carrier (1) is divided into an upper layer and a lower layer; The reaction tank (2) comprises a tank body (21), a flow channel layer (22), a heat preservation layer (23), an exhaust pipe (24), a vacuum chamber (25) and an explosion-proof valve (26), the tank body (21) is arranged on the upper layer of the carrier (1), the flow channel layer (22) is sleeved outside the tank body (21), the heat preservation layer (23) wraps the flow channel layer (22), one end of the exhaust pipe (24) is communicated with the inner cavity of the reaction tank (2), the other end is connected with the combustion medium input end of the steam generator (3), the vacuum chamber (25) is arranged in the tank body (21), and the vacuum chamber (25) is provided with the explosion-proof valve (26) between the inner cavity of the tank body (21) and the outside world; The tank body (21) further comprises a chamber wall plate (251), the chamber wall plate (251) is arranged in the tank body (21) to form the fan-shaped vacuum chamber (25), and the first inner cavity (201), the second inner cavity (202) and the communication cavity (203) of the tank body (21) are spaced out; the first inner cavity (201) and the second inner cavity (202) are located on the two sides of the communication cavity (203) oppositely; The steam generator (3) and the turbine generator (4) are arranged on the lower layer of the carrier (1), and the steam output end of the steam generator (3) is communicated with the flow channel layer (22) and the turbine generator (4).

2. The rural wastewater reclamation system of claim 1, wherein: The reaction tank (2) further comprises a liquid discharge pipe (27), a steam pipeline (28) and a series connection pipe (29), wherein, The liquid discharge pipe (27) is arranged at the middle segment of the reaction tank (2), one end of the liquid discharge pipe (27) is communicated with the inner cavity of the tank body (21), and the other end is a free end; The flow channel layer (22) is divided into two segments, the two segments of the flow channel layer (22) are sleeved on the tank body (21), and the two segments of the flow channel layer (22) are arranged on the two sides of the liquid discharge pipe (27) oppositely; The two ends of the series connection pipe (29) are communicated with one of the flow channel layers (22) respectively, and the series connection pipe (29) is arranged on the side of the flow channel layer (22) away from the steam generator (3).

3. The rural wastewater reclamation system of claim 2, wherein: It further comprises an end cover (5), a plurality of connecting screw rods (6) and a gland (7), the carrier (1) comprises a main frame body (11), a middle support (12) and an end support (13), wherein, The steam generator (3) and the turbine generator (4) are arranged on the main frame body (11); The middle support (12) is connected with the carrier (1) and the steam generator (3); The end support (13) is arranged on the steam generator (3) and the turbine generator (4) respectively, and the two end supports (13) are located on the two sides of the middle support (12) oppositely; The reaction tank (2) is arranged on the middle support (12) and the end support (13); The end cover (5) is provided with one at both ends of the reaction tank (2), and the end cover (5) is connected with the end support (13) through the connecting screw rod (6) on the side close to the main frame body (11); The two end covers (5) are connected in series through the connecting screw rod (6) on the side away from the main frame body (11), and are connected in series with the gland (7); The gland (7) is provided corresponding to the middle support (12) and holds the tank body (21).

4. The rural wastewater reclamation system of claim 3, wherein: It also includes a reinforcing support (8), the gland (7) includes a pressing frame (71), a connecting plate (72) and a connecting rod (73), wherein, The vacuum chamber (25) is provided in the middle section of the tank body (21), and the reinforcing support (8) is provided in the vacuum chamber (25); The pressing frame (71) is an arc-shaped frame structure, and the pressing frame (71) holds the middle section of the tank body (21) and abuts against the end of the flow channel layer (22) and the heat preservation layer (23); The explosion-proof valve (26) between the vacuum chamber (25) and the outside world is located inside the pressing frame (71); The connecting plate (72) is provided on the pressing frame (71) and connected in series with the connecting screw rod (6); The connecting rod (73) is provided with a plurality of connecting rods (73) on the pressing frame (71), and the connecting rod (73) covers the explosion-proof valve (26).

5. The rural wastewater reclamation system of claim 4, wherein: The end cover (5) includes a flange plate (51), a sleeve (52) and an inner ring (53), wherein, The flange plate (51) abuts against the end of the reaction tank (2) and is connected in series with the connecting screw rod (6); The sleeve (52) is provided on the side of the flange plate (51) and is sleeved on the heat preservation layer (23); The inner ring (53) is provided on the same side of the flange plate (51) with the sleeve (52), and the inner ring (53) is buckled between the tank body (21) and the flow channel layer (22).

6. The rural wastewater reclamation system of claim 1, wherein: It also includes a communication pipe (9), the communication pipe (9) is provided on the chamber wall plate (251), and the communication pipe (9) passes through the vacuum chamber (25) to connect the first inner cavity (201) and the second inner cavity (202).

7. The system for rural wastewater reuse according to any one of claims 1 to 5, characterized in that: It also includes a support frame (10), the support frame (10) includes a limiting frame (1011) and a support rod (1012), wherein, At least two limiting frames (1011) are provided in the explosion-proof valve (26) between the vacuum chamber (25) and the outside world, one of the limiting frames (1011) is connected with the inner wall of the explosion-proof valve (26), and the other limiting frame (1011) abuts against the valve piece (261) of the explosion-proof valve (26); The limiting frame (1011) is a spoke structure, the valve piece (261) is provided with an explosion-proof notch (2601), and the explosion-proof notch (2601) corresponds to the spoke (10111) of the limiting frame (1011); The two ends of the support rod (1012) are connected with one of the limiting frames (1011).

8. The system for rural wastewater reuse according to any one of claims 1 to 5, characterized in that: It also comprises a stirring paddle (111), a first commutator (112), a second commutator (113) and a transmission shaft (114), wherein, The stirring paddle (111) is arranged in the reaction tank (2), and the rotating shaft of the stirring paddle (111) extends into the reaction tank (2); The first commutator (112) is arranged on the rotating shaft of the stirring paddle (111); The second commutator (113) is arranged on the rotating shaft of the turbine generator (4); One end of the transmission shaft (114) is connected with the first commutator (112), and the other end is connected with the second commutator (113).

9. A method for using the rural wastewater reuse system according to any one of claims 1 to 8, characterized in that, It comprises the following steps: S1, supplying untreated sewage into the reaction tank (2); S2, supplying water source and combustion medium into the steam generator (3); S3, in the steam generator (3), the combustion medium is combusted to heat the water to generate steam; S4, the steam enters the turbine generator (4) through the pipeline to generate electric energy, and another part of the steam enters the flow channel layer (22) through the pipeline to heat the reaction tank (2) to achieve temperature regulation; S5, the combustible gas such as methane generated by the reaction of the sewage in the reaction tank (2) enters the combustion chamber of the steam generator (3) through the exhaust pipe (24) to promote combustion.

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