CN213295113U

CN213295113U - Mix industry sewage treatment system heating device

Info

Publication number: CN213295113U
Application number: CN202022236120.5U
Authority: CN
Inventors: 郭琳琳; 张洁; 公丕玉; 朱宗华; 杨雪楠
Original assignee: Cecep Linyi Environmental Protection Energy Co ltd; China National Environmental Protection Group Co ltd
Current assignee: Cecep Linyi Environmental Protection Energy Co ltd; China National Environmental Protection Group Co ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-05-28
Anticipated expiration: 2030-10-10

Abstract

The utility model discloses a heating device of a mixed industrial sewage treatment system, which comprises a steam-water mixer, a first temperature sensor, a second temperature sensor, a first electric valve and a check valve; the steam-water mixer is arranged on the heating pipeline; the heating pipeline is a bypass of an external circulation pipeline; the upper end of the steam-water mixer is provided with a water inlet; the lower end of the steam-water mixer is provided with a water outlet; a steam elbow is arranged on the side wall of the steam-water mixer; the horizontal section of the steam elbow is provided with a steam inlet; the vertical section of the steam elbow is arranged in the inner cavity of the steam-water mixer; a plurality of air outlet holes are formed in the vertical section of the steam elbow; the lower end of the vertical section of the steam elbow is sealed; a first gate valve and a second gate valve are arranged on the heating pipeline. The utility model has the advantages that: the utility model discloses can make the reaction temperature in the UASB be in optimum temperature all the time, the treatment effeciency of mixed industrial sewage is guaranteed to full play UASB's performance.

Description

Mix industry sewage treatment system heating device

Technical Field

The utility model relates to a sewage treatment field especially relates to a mix industry sewage treatment system heating device.

Background

The existing mixed industrial sewage (including landfill leachate) treatment system adopts a UASB + MBR + NF + RO treatment process. The optimal temperature range of the UASB treatment process is 30-35 ℃, the anaerobic digestion rate is fastest in the temperature range, so when the reaction temperature in the UASB is lower than 30 ℃, the reaction temperature in the UASB is required to be heated, the reaction temperature in the UASB is in the optimal temperature range, and the anaerobic digestion rate is accelerated.

The existing heating mode is to heat sewage inlet water of UASB, but practical verification proves that the reaction temperature in the UASB is difficult to rise to the optimal temperature by heating the sewage inlet water of the UASB, because the sewage inlet water flow of the UASB is small, the sewage inlet water is heated and then is introduced into the UASB, the reaction temperature in the UASB is not high enough to rise to the optimal temperature (the sewage inlet water of the UASB cannot be heated to the excessive temperature, and the sewage inlet water of the UASB is prevented from entering the UASB to inactivate anaerobic bacteria in sludge).

Therefore, the utility model provides a mix industry sewage treatment system heating device through the circulation sewage in the heating UASB extrinsic cycle pipeline, makes the interior reaction temperature of UASB be in optimum temperature, full play UASB's performance.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model discloses a heating device of a mixed industrial sewage treatment system, which comprises a steam-water mixer, a first temperature sensor, a second temperature sensor, a first electric valve and a check valve; the steam-water mixer is arranged on the heating pipeline; the heating pipeline is a bypass of an external circulation pipeline; the upper end of the steam-water mixer is provided with a water inlet; the lower end of the steam-water mixer is provided with a water outlet; a steam elbow is arranged on the side wall of the steam-water mixer; the horizontal section of the steam elbow is provided with a steam inlet; the vertical section of the steam elbow is arranged in the inner cavity of the steam-water mixer; a plurality of air outlet holes are formed in the vertical section of the steam elbow; the lower end of the vertical section of the steam elbow is sealed; a first gate valve and a second gate valve are arranged on the heating pipeline; the first gate valve is arranged above the steam-water mixer; the second gate valve is arranged below the steam-water mixer; the steam inlet is communicated with a steam pipeline; the first electric valve and the check valve are sequentially arranged on the steam pipeline; a third gate valve is arranged on the external circulation pipeline; the first temperature sensor is arranged on the heating pipeline and close to a water outlet of the steam-water mixer; the second temperature sensor is arranged on the side wall of the UASB tank body and is used for measuring the temperature in the UASB tank body; the first temperature sensor, the second temperature sensor and the first electric valve are all electrically connected with the controller.

The lower end of the vertical section of the steam elbow is provided with a plug; the plug is in threaded connection with the vertical section of the steam elbow.

The axis of the air outlet hole is obliquely arranged downwards relative to the vertical section of the steam elbow.

The vertical section of the steam elbow is provided with a first bulge; the cross section of the first bulge is enlarged from top to bottom in sequence.

Two water retaining hoppers are arranged in the steam-water mixer; the water blocking hopper is funnel-shaped; the vertical section of the steam elbow pipe sequentially penetrates through the two water retaining hoppers; one water blocking bucket is arranged above the first protrusion, and the other water blocking bucket is arranged below the first protrusion.

The utility model has the advantages that: the utility model can keep the reaction temperature in the UASB at the optimal temperature all the time, give full play to the performance of the UASB and ensure the treatment efficiency of the mixed industrial sewage; the operation is reliable; when the steam-water mixer is maintained, impurities in the steam elbow can be emptied by unscrewing the plug, so that the operation is simple; the probability of impurities in the circulating water entering the steam elbow can be reduced, and the air outlet of the steam elbow is prevented from being blocked; the heating effect of the steam can be improved, and the heating is more uniform.

Drawings

FIG. 1 is a schematic view of the mixed industrial sewage treatment system of the utility model.

Fig. 2 is a schematic structural diagram of the UASB of the present invention.

Fig. 3 is a schematic structural diagram of the steam-water mixer of the present invention.

Fig. 4 is a top view of fig. 3.

Fig. 5 is a sectional view taken along a-a in fig. 4.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the invention can be more easily understood by those skilled in the art, thereby making the scope of the invention more clearly defined.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The terms referred to in this application are to be construed as follows,

UASB: an upflow anaerobic sludge reactor.

MBR: a membrane bioreactor.

NF: a nanofiltration membrane system.

And (3) RO: a reverse osmosis system.

Example 1

Referring to fig. 1-5, a heating device of a hybrid industrial sewage treatment system comprises a steam-water mixer 1, a first temperature sensor 2, a second temperature sensor 3, a first electric valve 4 and a check valve 5; the steam-water mixer 1 is arranged on a heating pipeline P1; the heating pipeline P1 is a bypass of an external circulation pipeline P2; the upper end of the steam-water mixer 1 is provided with a water inlet 101; the lower end of the steam-water mixer 1 is provided with a water outlet 102; a steam bent pipe 103 is arranged on the side wall of the steam-water mixer 1; a steam inlet 104 is arranged at the horizontal section of the steam elbow 103; the vertical section of the steam elbow 103 is arranged in the inner cavity of the steam-water mixer 1; a plurality of air outlet holes 105 are formed in the vertical section of the steam elbow 103; the lower end of the vertical section of the steam elbow 103 is a seal; the heating pipeline P1 is provided with a first gate valve 6 and a second gate valve 7; the first gate valve 6 is arranged above the steam-water mixer 1; the second gate valve 7 is arranged below the steam-water mixer 1; the steam inlet 104 is communicated with a steam pipeline P3; the first electric valve 4 and the check valve 5 are sequentially arranged on a steam pipeline P3; a third gate valve 8 is arranged on the external circulation pipeline P2; the first temperature sensor 2 is arranged on the heating pipeline P1 and is close to the water outlet 102 of the steam-water mixer 1; the second temperature sensor 3 is arranged on the side wall of the UASB tank body and is used for measuring the temperature in the UASB tank body; the first temperature sensor 2, the second temperature sensor 3 and the first electric valve 4 are all electrically connected with the controller.

Methods and principles of use: under the condition of normal temperature, if the interior of the UASB is not heated by an external heat source, the temperature in the tank body of the UASB is difficult to reach 30-35 ℃. The utility model discloses a water in the external circulation pipeline P2 is heated to vapour water mixer 1, and then reaches the purpose that promotes the internal temperature of UASB's jar. When the utility model is used, the third gate valve 8 is normally closed, and the first gate valve 6 and the second gate valve 7 are normally opened; the circulating pump 9 continuously circulates the water in the UASB tank body through a heating pipeline P1; the controller controls the first electric valve 4 to be opened, steam enters the steam elbow 103 through the steam inlet 104 and heats circulating water passing through the steam-water mixer 1 through the air outlet 105, and the heated circulating water flows back into the UASB tank body and heats water in the UASB tank body so as to improve the temperature in the UASB tank body. When the controller detects that the temperature in the UASB tank body is lower than 30 ℃ through the second temperature sensor 3, the controller controls the first electric valve 4 to increase the opening of the first electric valve 4, so that more steam enters the steam-water mixer 1 to improve the outlet water temperature of the water outlet 102 of the steam-water mixer 1 and further improve the temperature in the UASB tank body, when the controller detects that the outlet water temperature of the water outlet 102 reaches 50 ℃ through the first temperature sensor 2, the controller stops increasing the opening of the first electric valve 4, otherwise, the outlet water temperature is too high, so that anaerobic bacteria in the UASB tank body are inactivated; when the controller detects that the temperature in the UASB tank body is higher than 35 ℃ through the second temperature sensor 3, the controller controls the first electric valve 4 to reduce the opening degree of the first electric valve 4, so that the temperature in the UASB tank body is reduced. When the steam-water mixer 1 breaks down or needs to be maintained regularly, the third gate valve 8 is opened, then the first gate valve 6 and the second gate valve 7 are closed, and circulating water circulates through the external circulating pipeline P2 at the moment, so that the normal operation of UASB is ensured; the heating line P1 is blocked, and the steam-water mixer 1 can be subjected to fault treatment or maintenance.

Therefore, the utility model can ensure that the reaction temperature in the UASB is always in the optimal temperature, fully exert the performance of the UASB and ensure the treatment efficiency of the mixed industrial sewage; and is reliable in operation.

The lower end of the vertical section of the steam elbow 103 is provided with a plug 106; the plug 106 is in threaded connection with the vertical section of the steam elbow 103.

Therefore, when the steam-water mixer 1 is maintained, impurities in the steam bent pipe 103 can be emptied by unscrewing the plug 106, and the operation is simple.

The axes of the outlet openings 105 are arranged obliquely downward relative to the vertical section of the steam trap 103.

Thus, the direction of the circulating water flow is consistent with that of the air outlet 105, the probability that impurities in the circulating water enter the steam bent pipe 103 can be greatly reduced, and the air outlet 105 of the steam bent pipe 103 is prevented from being blocked to influence the heating effect.

The vertical section of the steam elbow 103 is provided with a first bulge 107; the cross section of the first protrusion 107 becomes larger from top to bottom.

Thus, the direction of the water flow is changed when the water flow passes through the first protrusion 107, the heating effect of the steam can be improved, and the heating is uniform.

Two water retaining hoppers 108 are arranged in the steam-water mixer 1; the water blocking hopper 108 is funnel-shaped; the vertical section of the steam elbow 103 sequentially passes through the two water retaining hoppers 108; one water blocking scoop 108 is disposed above the first protrusion 107, and the other water blocking scoop 108 is disposed below the first protrusion 107.

Therefore, water flow sequentially passes through the water retaining hopper 108 on the upper side, the first bulge 107 and the water retaining hopper 108 on the lower side, disturbance is generated on the water flow, the heating effect of steam can be improved, and the heating is more uniform.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any slight modifications, equivalent replacements and improvements made by the technical spirit of the present invention to the above embodiments should be included in the technical solution of the present invention.

Claims

1. A heating device of a mixed industrial sewage treatment system is characterized by comprising a steam-water mixer, a first temperature sensor, a second temperature sensor, a first electric valve and a check valve; the steam-water mixer is arranged on the heating pipeline; the heating pipeline is a bypass of an external circulation pipeline; the upper end of the steam-water mixer is provided with a water inlet; the lower end of the steam-water mixer is provided with a water outlet; a steam elbow is arranged on the side wall of the steam-water mixer; the horizontal section of the steam elbow is provided with a steam inlet; the vertical section of the steam elbow is arranged in the inner cavity of the steam-water mixer; a plurality of air outlet holes are formed in the vertical section of the steam elbow; the lower end of the vertical section of the steam elbow is sealed; a first gate valve and a second gate valve are arranged on the heating pipeline; the first gate valve is arranged above the steam-water mixer; the second gate valve is arranged below the steam-water mixer; the steam inlet is communicated with a steam pipeline; the first electric valve and the check valve are sequentially arranged on the steam pipeline; a third gate valve is arranged on the external circulation pipeline; the first temperature sensor is arranged on the heating pipeline and close to a water outlet of the steam-water mixer; the second temperature sensor is arranged on the side wall of the UASB tank body and is used for measuring the temperature in the UASB tank body; the first temperature sensor, the second temperature sensor and the first electric valve are all electrically connected with the controller.

2. The heating device of claim 1, wherein the lower end of the vertical section of the steam elbow is provided with a plug; the plug is in threaded connection with the vertical section of the steam elbow.

3. The hybrid industrial sewage treatment system heating apparatus of claim 1 wherein the axis of the gas outlet is disposed diagonally downward relative to the vertical section of the steam elbow.

4. The hybrid industrial sewage treatment system heating apparatus of claim 3 wherein the vertical section of the steam elbow is provided with a first protrusion; the cross section of the first bulge is enlarged from top to bottom in sequence.

5. The heating device of claim 4, wherein two water retaining hoppers are arranged inside the steam-water mixer; the water blocking hopper is funnel-shaped; the vertical section of the steam elbow pipe sequentially penetrates through the two water retaining hoppers; one water blocking bucket is arranged above the first protrusion, and the other water blocking bucket is arranged below the first protrusion.