Waste water heat recovery device

Abstract

The utility model provides a waste water heat recovery device, belongs to the technical field of heat recovery, and aims to solve the problems that clear water of an existing waste water heat recovery device is short in time of remaining in a heat exchange structure, so that heat absorbed by the clear water is low, and waste water in a plurality of pipelines is wasted when the waste water needs to be collected in a centralized manner. And the temperature of the collected wastewater is not uniform enough. Comprising a recovery tank body; the fixed bracket is in bolted connection with the bottom of the recycling tank main body; the access cover is fixedly mounted at the top of the recovery tank main body; the driving motor is in bolted connection with the bottom of the recycling tank main body; the threaded pipeline is fixedly mounted at the bottom of the access cover; the recycling assembly is arranged in the recycling tank main body; and the mixing assembly is arranged in the recycling tank main body. The device has the advantages of waste reduction, quick cleaning, uniform mixing and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat recovery, and more specifically, relates to a wastewater heat recovery device. Background Art

[0002] In industries such as coal, electricity, and petrochemicals, a large amount of wastewater rich in heat energy is generated during the production process. Recovering and reusing heat from wastewater can significantly improve energy utilization efficiency. When recovering and reusing heat from wastewater, a wastewater heat recovery device is required. The existing wastewater heat recovery device is mainly composed of a tank body and a heat exchange structure. Wastewater flows through the tank body. The heat exchange structure is usually a fin, a curved pipe, etc. The heat exchange structure transfers the heat in the wastewater to the medium that needs to be heated (such as air, water, etc.), thereby realizing heat recovery and reuse.

[0003] Existing application number CN201720128049.4 discloses a device for recovering heat from industrial wastewater. The device comprises an industrial furnace and a drainpipe. The drainpipe is installed at the outlet of the industrial furnace, and a copper pipe is installed inside the drainpipe. A first branch pipe is provided on the outer wall of the drainpipe near the outlet. One end of the copper pipe passes through the first branch pipe and is connected to a tap. A second branch pipe is provided on the outer wall of the drainpipe away from the outlet. The other end of the copper pipe extends from the second branch pipe and is connected to an insulated water storage bucket. The outlet of the drainpipe is connected to a sewage treatment tank. This device has a simple structure and recycles the heat from the wastewater discharged from the industrial furnace, reducing energy waste.

[0004] Based on the above, the flow rate of clean water in the existing wastewater heat recovery device when passing through the heat exchange structure is relatively fast, so the clean water stays in the heat exchange structure for a shorter time, so the heat absorbed by the clean water is relatively low, which leads to heat waste. Moreover, when it is necessary to centrally collect the wastewater inside multiple pipelines, there is a temperature difference in the wastewater temperature inside the multiple pipelines, and the temperature of the collected wastewater is not uniform enough, which reduces the heat recovery efficiency of the heat exchange structure. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a wastewater heat recovery device to solve the problem that the flow rate of clean water in the existing wastewater heat recovery device is fast when passing through the heat exchange structure, so the clean water stays in the heat exchange structure for a short time, so the heat absorbed by the clean water is low, which leads to heat waste, and when it is necessary to centrally collect the wastewater inside multiple pipelines, there is a temperature difference in the wastewater temperature inside the multiple pipelines, and the temperature of the collected wastewater is not uniform enough, which reduces the heat recovery efficiency of the heat exchange structure.

[0006] The purpose and effect of the wastewater heat recovery device of the utility model are achieved by the following specific technical means:

[0007] A wastewater heat recovery device comprises a recovery tank body;

[0008] A fixing bracket, wherein the fixing bracket is bolted to the bottom of the recovery tank body;

[0009] An inspection cover, the inspection cover being fixedly mounted on the top of the recovery tank body;

[0010] A drive motor, wherein the drive motor is bolted to the bottom of the recovery tank body;

[0011] A threaded pipe, wherein the threaded pipe is fixedly installed at the bottom of the inspection cover;

[0012] A recovery component is disposed inside the recovery tank body;

[0013] A mixing assembly is provided inside the recovery tank body.

[0014] Furthermore, the recycling component includes:

[0015] Wastewater inlet pipes, wherein the wastewater inlet pipes are provided in multiple groups, and the multiple groups of wastewater inlet pipes are fixedly installed on one side of the recovery tank body;

[0016] A wastewater outlet pipe is fixedly installed on one side of the recovery tank body.

[0017] Furthermore, the recycling component also includes:

[0018] A clean water inlet pipe, the clean water inlet pipe being provided at one end inside the threaded pipe;

[0019] A clean water outlet pipe is provided at one end inside the threaded pipe.

[0020] Furthermore, the recycling component also includes:

[0021] an exhaust pipe, the exhaust pipe being fixedly mounted on the top of the inspection cover;

[0022] A filter, wherein the filter is fixedly installed inside the exhaust pipe;

[0023] A one-way valve is fixedly installed inside the exhaust pipe.

[0024] Furthermore, the mixing assembly includes:

[0025] A rotating shaft, the rotating shaft being rotatably connected to the inside of the recovery tank body and fixedly mounted inside the drive motor;

[0026] The first stirring blade is fixedly mounted on the outside of the rotating shaft.

[0027] Furthermore, the mixing assembly further comprises:

[0028] A bottom scraper, the bottom scraper being fixedly mounted on the end of the rotating shaft;

[0029] Side scrapers, two groups of side scrapers are provided, and the two groups of side scrapers are fixedly installed at both ends of the bottom scraper;

[0030] The second stirring blades are provided in multiple groups, and the multiple groups of second stirring blades are fixedly installed inside the two groups of side scrapers.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] First of all, the utility model has a recovery component, which increases the flow time of clean water inside the threaded pipe through the threaded structure of the threaded pipe, greatly improves the heat exchange recovery effect, reduces heat waste, and avoids the harmful gases generated by wastewater from being discharged to the outside of the recovery tank body to pollute the environment.

[0033] Secondly, the utility model has a mixing component, which stirs the wastewater inside the recovery tank body through the first stirring blade and the second stirring blade, so that the wastewater inside the recovery tank body is evenly mixed, avoiding the large temperature difference of the wastewater affecting the heat exchange, and scrapes the inner wall and bottom of the recovery tank body through the bottom scraper and the side scraper, avoiding the precipitation of impurities in the wastewater and adhering to the inner wall of the recovery tank body, which is inconvenient to clean.

[0034] The utility model has the advantages of reducing waste, quickly cleaning, and uniform mixing, greatly improving the effect of heat exchange recovery, reducing heat waste, and evenly mixing the wastewater inside the recovery tank body, and avoiding the precipitation of impurities in the wastewater and adhering to the inner wall of the recovery tank body, which is inconvenient to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0036] Figure 2 It is a structural schematic diagram of the inspection cover of the present utility model.

[0037] Figure 3 This is a schematic diagram of the drive motor structure of the utility model.

[0038] Figure 4 It is a schematic diagram of the internal structure of the recovery tank body of the utility model.

[0039] Figure 5 It is a schematic diagram of the rotating shaft structure of the utility model.

[0040] Figure 6 It is a schematic diagram of the threaded pipe structure of the utility model.

[0041] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0042] 1. Recovery tank body; 101. Wastewater inlet pipe; 102. Wastewater outlet pipe; 2. Fixed bracket; 3. Inspection cover; 301. Exhaust pipe; 302. Filter; 303. One-way valve; 4. Drive motor; 401. Rotating shaft; 402. First stirring blade; 403. Bottom scraper; 404. Side scraper; 405. Second stirring blade; 5. Threaded pipe; 501. Clean water inlet pipe; 502. Clean water outlet pipe. DETAILED DESCRIPTION

[0043] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0044] Example 1:

[0045] As attached Figure 1 To the attached Figure 6 As shown:

[0046] The utility model provides a wastewater heat recovery device, comprising a recovery tank body 1;

[0047] The fixing bracket 2 is bolted to the bottom of the recovery tank body 1;

[0048] An inspection cover 3 is fixedly mounted on the top of the recovery tank body 1;

[0049] A drive motor 4 is bolted to the bottom of the recovery tank body 1;

[0050] Threaded pipe 5, threaded pipe 5 is fixedly installed at the bottom of the inspection cover 3;

[0051] The recovery component is arranged inside the recovery tank body 1.

[0052] Among them, the recycled components include:

[0053] Wastewater inlet pipe 101, the wastewater inlet pipe 101 is provided with multiple groups, and the multiple groups of wastewater inlet pipe 101 are fixedly installed on one side of the recovery tank body 1;

[0054] The wastewater outlet pipe 102 is fixedly installed on one side of the recovery tank body 1; its function is that the wastewater enters the recovery tank body 1 through multiple groups of wastewater inlet pipes 101 and is collected, and the collected wastewater flows out from the wastewater outlet pipe 102.

[0055] Among them, the recycling components also include:

[0056] Clean water inlet pipe 501, which is opened at one end inside the threaded pipe 5;

[0057] The clean water outlet pipe 502 is opened at one end inside the threaded pipe 5; its function is that the clean water enters the threaded pipe 5 through the clean water inlet pipe 501. The threaded pipe 5 is a threaded structure, which increases the flow time of the clean water inside the threaded pipe 5. The clean water flowing inside the threaded pipe 5 and the waste water inside the recovery tank body 1 exchange heat, thereby achieving a heat recovery effect. The clean water after heat exchange flows out from the clean water outlet pipe 502 for utilization.

[0058] Among them, the recycling components also include:

[0059] Exhaust pipe 301, exhaust pipe 301 is fixedly installed on the top of the inspection cover 3;

[0060] Filter 302, filter 302 is fixedly installed inside the exhaust pipe 301;

[0061] One-way valve 303, the one-way valve 303 is fixedly installed inside the exhaust pipe 301; its function is that the exhaust pipe 301 discharges the gas inside the recovery tank body 1 and adjusts the internal air pressure of the recovery tank body 1. The filter 302 filters the gas discharged from the exhaust pipe 301 to prevent harmful gases in the wastewater from being discharged from the exhaust pipe 301 to pollute the environment. The one-way valve 303 allows the exhaust pipe 301 to discharge gas only in one direction, preventing external cold air from entering the recovery tank body 1 and affecting heat recovery.

[0062] The specific usage and function of this embodiment are as follows:

[0063] Wastewater enters the recovery tank body 1 through multiple sets of wastewater inlet pipes 101 and is collected. The collected wastewater flows out from the wastewater outlet pipe 102. When the wastewater flows through the recovery tank body 1, clean water enters the threaded pipe 5 through the clean water inlet pipe 501. The threaded pipe 5 has a threaded structure, which increases the flow time of the clean water in the threaded pipe 5. The clean water flowing in the threaded pipe 5 exchanges heat with the wastewater in the recovery tank body 1, thereby achieving a heat recovery effect. The clean water after heat exchange flows out from the clean water outlet pipe 502 for utilization.

[0064] The exhaust pipe 301 is used to discharge the internal gas of the recovery tank body 1 and adjust the internal air pressure of the recovery tank body 1. The filter 302 filters the gas discharged from the exhaust pipe 301 to prevent harmful gases in the wastewater from being discharged from the exhaust pipe 301 to pollute the environment. The one-way valve 303 allows the exhaust pipe 301 to discharge gas in only one direction to prevent external cold air from entering the recovery tank body 1 and affecting heat recovery.

[0065] Example 2:

[0066] Based on the first embodiment, Figures 1 to 6 As shown, it also includes:

[0067] The mixing component is arranged inside the recovery tank body 1.

[0068] The hybrid components include:

[0069] Rotating shaft 401, rotating shaft 401 is rotatably connected to the inside of the recovery tank body 1, and rotating shaft 401 is fixedly installed inside the driving motor 4;

[0070] The first stirring blade 402 is fixedly mounted on the outside of the rotating shaft 401 ; its function is that when the driving motor 4 is powered on, the driving motor 4 drives the rotating shaft 401 to rotate, and the rotation of the rotating shaft 401 drives the first stirring blade 402 to rotate.

[0071] The hybrid components also include:

[0072] The bottom scraper 403 is fixedly mounted on the end of the rotating shaft 401;

[0073] Side scrapers 404, there are two sets of side scrapers 404, the two sets of side scrapers 404 are fixedly installed at both ends of the bottom scraper 403;

[0074] The second stirring blade 405 is provided with multiple groups of second stirring blades 405, and the multiple groups of second stirring blades 405 are fixedly installed inside the two groups of side scrapers 404; the function is that the rotation of the rotating shaft 401 drives the bottom scraper 403 to rotate, and the rotation of the bottom scraper 403 scrapes the bottom of the recovery tank body 1, and the bottom scraper 403 drives the side scraper 404 to rotate, and the rotation of the side scraper 404 scrapes the inner wall of the recovery tank body 1, and the rotation of the side scraper 404 drives the second stirring blade 405 to rotate.

[0075] The specific usage and function of this embodiment are as follows:

[0076] When it is necessary to mix the wastewater inside the recovery tank body 1 to make the wastewater temperature more uniform, the drive motor 4 is energized to work, and the drive motor 4 drives the rotating shaft 401 to rotate. The rotation of the rotating shaft 401 drives the first stirring blade 402 to rotate. The first stirring blade 402 rotates to evenly mix the wastewater inside the recovery tank body 1. At the same time, the rotation of the rotating shaft 401 drives the bottom scraper 403 to rotate. The bottom scraper 403 rotates to scrape and wash the bottom of the recovery tank body 1 to prevent impurities in the wastewater from adhering to the bottom of the recovery tank body 1 and being difficult to clean. The bottom scraper 403 drives the side scraper 404 to rotate. The side scraper 404 rotates to scrape and wash the inner wall of the recovery tank body 1 to prevent impurities in the wastewater from adhering to the side wall of the recovery tank body 1 and being difficult to clean. The rotation of the side scraper 404 drives the second stirring blade 405 to rotate. The second stirring blade 405 stirs the wastewater in the recovery tank body 1 to enhance the stirring efficiency.

[0077] In this article, there are several points to note:

[0078] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0079] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0080] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A wastewater heat recovery device, comprising a recovery tank body (1); a fixing bracket (2), wherein the fixing bracket (2) is bolted to the bottom of the recovery tank body (1); and characterized in that: An inspection cover (3), the inspection cover (3) is fixedly mounted on the top of the recovery tank body (1); a drive motor (4), the drive motor (4) is bolted to the bottom of the recovery tank body (1); a threaded pipe (5), the threaded pipe (5) is fixedly mounted on the bottom of the inspection cover (3); a recovery assembly, the recovery assembly is arranged inside the recovery tank body (1); a mixing assembly, the mixing assembly is arranged inside the recovery tank body (1); a wastewater inlet pipe (101), the wastewater inlet pipe (101) is provided with multiple groups, and the multiple groups of wastewater inlet pipes (101) are fixedly mounted on one side of the recovery tank body (1); a wastewater outlet pipe (102), the wastewater outlet pipe (102) is fixedly mounted on one side of the recovery tank body (1).

2. A wastewater heat recovery device according to claim 1, characterized in that: The recovery component further comprises: a clean water inlet pipe (501) and a clean water outlet pipe (502); the clean water inlet pipe (501) is opened at one end inside the threaded pipe (5); and the clean water outlet pipe (502) is opened at one end inside the threaded pipe (5).

3. A wastewater heat recovery device according to claim 2, characterized in that: The recovery assembly further comprises: an exhaust pipe (301), a filter (302) and a one-way valve (303); the exhaust pipe (301) is fixedly mounted on the top of the inspection cover (3); the filter (302) is fixedly mounted inside the exhaust pipe (301); and the one-way valve (303) is fixedly mounted inside the exhaust pipe (301).

4. The wastewater heat recovery device according to claim 1, characterized in that: The mixing assembly comprises: a rotating shaft (401) and a first stirring blade (402); the rotating shaft (401) is rotatably connected to the inside of the recovery tank body (1); the rotating shaft (401) is fixedly installed inside the driving motor (4); and the first stirring blade (402) is fixedly installed outside the rotating shaft (401).

5. A wastewater heat recovery device according to claim 4, characterized in that: The mixing assembly further comprises: a bottom scraper (403), a side scraper (404) and a second stirring blade (405), wherein the bottom scraper (403) is fixedly mounted on the end of the rotating shaft (401); two groups of side scrapers (404) are provided, and the two groups of side scrapers (404) are fixedly mounted on both ends of the bottom scraper (403); and multiple groups of second stirring blades (405) are provided, and the multiple groups of second stirring blades (405) are fixedly mounted inside the two groups of side scrapers (404).

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