Heat accumulating type high-temperature septic tank

Abstract

The utility model relates to the technical field of septic tanks, and provides a heat accumulating type high-temperature septic tank which comprises a tank body, one end of the tank body is fixedly connected with a sewage inlet pipe, the inner side of the tank body is provided with at least more than two parallel upper and lower partition plates, the tank body is divided into more than three compartments, the upper partition plate is connected with an upper plane and is provided with a vent hole penetrating through the partition plates, and the lower partition plate is connected with a lower plane. A certain gap is reserved between the upper partition plate and the lower plane, the lower partition plate is connected with the lower plane, a certain gap is reserved between the lower partition plate and the upper plane, sewage can flow conveniently, a heating assembly is arranged in the last compartment, each compartment is provided with a heat exchange coil pipe, and the inlet end of the heat exchange coil pipe is fixed to the last compartment. The outlet end of the heat exchange coil pipe is fixed on the outer side of the first compartment of the sewage inlet, fermented biogas slurry enters the coil pipe after being heated and sequentially enters the adjacent compartments through the upper and lower partition plate coil pipes, heat exchange and temperature rise are carried out on inlet water, and finally the biogas slurry is discharged through the outer side of the first compartment. According to the utility model, enthalpy circulates in the tank body, the heating energy consumption is reduced, and the enthalpy of the high-temperature anaerobic fermentation biogas slurry is recovered.

Description

Technical Field

[0001] The utility model relates to the technical field of septic tanks, and in particular to a heat storage type high-temperature septic tank. Background Art

[0002] At present, the livestock breeding industry is showing a trend of intensive development, which puts forward higher requirements for the treatment of aquaculture wastewater. There are certain risks in returning anaerobic biogas slurry to the fields. Despite this, there is no more land near the farm to meet the requirements of intensive breeding. It is not economical and inconvenient to transport it over a long distance. Resource recycling and on-site digestion are the problems that need to be solved for aquaculture wastewater.

[0003] After searching, the Chinese patent publication number CN205347166U discloses "a three-compartment septic tank, including a tank body, the tank body includes an upper tank body and a lower tank body that can be connected to each other, the upper tank body and the lower tank body are both made of plastic injection molding, two partitions are arranged in the tank body, the partitions divide the internal space of the upper tank body and the lower tank body into a first cavity, a second cavity, and a third cavity for water flow to pass through in sequence, main sewage inlets for sewage to enter are arranged on both sides of the upper tank body, the main sewage inlet connects the first cavity with the outside, and a retaining edge is arranged in the main sewage inlet for easy placement of pipelines."

[0004] The above patent performs multi-stage anaerobic fermentation on wastewater by setting up a first cavity, a second cavity and a third cavity respectively. However, since the septic tank is buried underground, the stability inside the septic tank is low, which makes the fermentation rate of wastewater inside the first cavity, the second cavity and the third cavity low, and the efficiency of biogas production is low, which greatly increases the time cost of biogas treatment, and due to the long treatment cycle, it also brings about the problem of storage of fermentation raw materials. Utility Model Content

[0005] The utility model provides a heat storage type high-temperature septic tank, which solves the problem of low low-temperature fermentation speed in the prior art.

[0006] The technical solution of the utility model is as follows: a heat storage high-temperature septic tank, comprising a tank body, one end of the top of the tank body is fixedly connected with a sewage inlet pipe communicating with the interior of the tank body, the inner side of the tank body is fixedly connected with more than two parallel and vertically offset partitions, a number of the partitions divide the tank body into more than three compartments, the inner sides of the compartments are fixedly connected with heat exchange coils, two adjacent heat exchange coils are connected by pipes, the inlet end of the heat exchange coil is fixedly connected to the inner side of the last compartment, the outlet end of the heat exchange coil is fixedly connected to the outer side of the first compartment, and one end of the tank body is fixedly connected with a slag discharge pipe communicating with the interior of the last compartment.

[0007] Preferably, the partition located at the upper end is fixedly connected to the upper plane on the inner side of the pool body, and a vent hole penetrating the partition is provided on the partition located at the upper end.

[0008] Preferably, the partition located at the lower end is fixedly connected to the lower plane on the inner side of the pool body, and a gap is left between the partition located at the lower end and the upper plane on the inner side of the pool body.

[0009] Preferably, a heating component for heating the biogas slurry is arranged on the inner side of the last compartment, and the heating component is fixedly mounted on the last partition.

[0010] Preferably, the orifice height of the slag discharge pipe is smaller than the orifice height of the inlet end of the heat exchange coil.

[0011] Preferably, an exhaust pipe is fixedly connected to the top of the last compartment, and the exhaust pipe is communicated with the interior of the last compartment.

[0012] The technical effects and advantages of the utility model are as follows: the heating component can heat the biogas slurry, and the heated biogas slurry enters the inside of the heat exchange coil, and then enters the inside of the adjacent compartments in turn through the heat exchange coils on the upper and lower partitions, thereby exchanging heat and heating the sewage, and finally being discharged through the outside of the first compartment. In this way, the fermentation temperature inside each compartment can be increased, thereby greatly improving the fermentation speed. The whole process can make the heat enthalpy circulate in the tank body, reduce heating energy consumption, and recover the heat enthalpy of high-temperature anaerobic fermentation biogas slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the appearance structure of a heat storage high temperature septic tank of the utility model. Figure 1 .

[0014] Figure 2 This is a schematic diagram of the appearance structure of a heat storage high temperature septic tank of the utility model. Figure 2 .

[0015] Figure 3 It is a schematic diagram of the internal structure of the pool body of the utility model.

[0016] Figure 4 It is a schematic diagram of the structure of the heat exchange coil of the utility model.

[0017] The figures are marked as follows: 1. tank body; 2. sewage inlet pipe; 3. partition; 31. vent hole; 4. slag discharge pipe; 5. heat exchange coil; 8. heating component; 9. exhaust pipe; 10. compartment. DETAILED DESCRIPTION

[0018] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Reference Figure 1 - Figure 4 The utility model provides a heat storage high-temperature septic tank, including a tank body 1, one end of the top of the tank body 1 is fixedly connected with a sewage inlet pipe 2 communicated with the inside of the tank body 1, and the inner side of the tank body 1 is fixedly connected with more than two parallel partitions 3 that are staggered up and down, and the plurality of partitions 3 divide the tank body 1 into more than three compartments 10, and the inner sides of the compartments 10 are fixedly connected with heat exchange coils 5, and two adjacent heat exchange coils 5 are connected by pipelines, and the inlet end of the heat exchange coil 5 is fixedly connected to the inner side of the last compartment 10, and the outlet end of the heat exchange coil 5 is fixedly connected to the outer side of the first compartment 10, and one end of the tank body 1 is fixedly connected with a slag discharge pipe 4 communicated with the inside of the last compartment 10, and the pipe mouth height of the slag discharge pipe 4 is less than the pipe mouth height of the inlet end of the heat exchange coil 5.

[0020] Among them, the partition 3 at the upper end is fixedly connected to the upper plane inside the pool body 1, and a vent hole 31 penetrating the partition 3 is opened on the partition 3 at the upper end; the partition 3 at the lower end is fixedly connected to the lower plane inside the pool body 1, and a gap is left between the partition 3 at the lower end and the upper plane inside the pool body 1; the gap between the partition 3 at the lower end and the upper plane of the pool body 1 can facilitate the flow of sewage.

[0021] Among them, a heating component 8 for heating the biogas slurry is arranged inside the last compartment 10, and the heating component 8 is fixedly mounted on the last partition 3. The heating component 8 can heat the fermented biogas slurry, so that the biogas slurry entering the heat exchange coil 5 is heated, and then enters the adjacent compartments 10 in sequence through the heat exchange coils 5 on the upper and lower partitions 3, so as to heat and heat the sewage, and finally discharge it from the outside of the first compartment 10, so that the fermentation temperature inside each compartment 10 can be increased, thereby greatly increasing the fermentation speed. The whole process can make the heat enthalpy circulate in the tank body, reduce the heating energy consumption, and recover the heat enthalpy of the high-temperature anaerobic fermentation biogas slurry.

[0022] The top of the last compartment 10 is fixedly connected with an exhaust pipe 9, which communicates with the inside of the last compartment 10. The biogas fermented inside the cell body 1 can flow into the inside of the last compartment 10 and then be discharged through the exhaust pipe 9 to reduce the gas pressure inside the cell body 1.

[0023] The working principle of the utility model is as follows: first, sewage is introduced into the interior of the first compartment 10 through the sewage inlet pipe 2, and then circulated to each compartment 10 in turn for fermentation, and finally the fermented liquid flows into the interior of the last compartment 10 to be heated by the heating component 8, and the heated biogas slurry enters the interior of the heat exchange coil 5, and then enters the interior of the adjacent compartments 10 in turn through the heat exchange coil 5 on the upper and lower partitions 3, thereby heat exchange and heating the sewage, and finally discharged from the outside of the first compartment 10, which can increase the fermentation temperature inside each compartment 10, thereby greatly increasing the fermentation speed. The whole process can make the heat enthalpy circulate in the pool body, reduce heating energy consumption, and recover the heat enthalpy of high-temperature anaerobic fermentation biogas slurry.

[0024] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat storage high temperature septic tank, comprising a tank body (1), characterized in that: One end of the top of the tank body (1) is fixedly connected to a sewage inlet pipe (2) communicating with the interior of the tank body (1); the inner side of the tank body (1) is fixedly connected to two or more parallel partitions (3) that are offset up and down; a plurality of the partitions (3) divide the tank body (1) into three or more compartments (10); the inner sides of the compartments (10) are fixedly connected to heat exchange coils (5); two adjacent heat exchange coils (5) are connected via a pipeline; the inlet end of the heat exchange coil (5) is fixedly connected to the inner side of the last compartment (10); the outlet end of the heat exchange coil (5) is fixedly connected to the outer side of the first compartment (10); one end of the tank body (1) is fixedly connected to a slag discharge pipe (4) communicating with the interior of the last compartment (10); A heating component (8) for heating the biogas slurry is arranged on the inner side of the last compartment (10), and the heating component (8) is fixedly mounted on the last partition plate (3).

2. A thermal storage high temperature septic tank according to claim 1, characterized in that: The partition (3) located at the upper end is fixedly connected to the upper plane on the inner side of the pool body (1), and a vent hole (31) penetrating the partition (3) is provided on the partition (3) located at the upper end.

3. A thermal storage high temperature septic tank according to claim 2, characterized in that: The partition plate (3) located at the lower end is fixedly connected to the lower plane inside the pool body (1), and a gap is left between the partition plate (3) located at the lower end and the upper plane inside the pool body (1).

4. A thermal storage high temperature septic tank according to claim 1, characterized in that: The pipe opening height of the slag discharge pipe (4) is smaller than the pipe opening height of the inlet end of the heat exchange coil (5).

5. A thermal storage high temperature septic tank according to claim 1, characterized in that: The top end of the last compartment (10) is fixedly connected with an exhaust pipe (9), and the exhaust pipe (9) is communicated with the interior of the last compartment (10).

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