Sewage heat energy recycling device

Abstract

The utility model discloses a sewage heat energy recycling device which comprises a heat energy recycling mechanism and a corrugated pipe installed in the heat energy recycling mechanism. A filter screen fixing mechanism and a filter screen mounted in the filter screen fixing mechanism are arranged on one side of the top of the heat energy recovery mechanism; the heat energy recovery mechanism comprises a box body, one side of the bottom of the box body is fixedly connected with a fixing sleeve, and one end of the fixing sleeve is fixedly connected with the corrugated pipe; wherein the end, away from the corrugated pipe, of the fixing sleeve is in threaded connection with a connecting sleeve, the outer side of the end, close to the fixing sleeve, of the connecting sleeve is connected with a first sealing ring in a clamped mode, and by arranging the heat energy recycling mechanism, the situation that water flow in the corrugated pipe flows back, and consequently heat energy in sewage is wasted can be avoided; by arranging the filter screen fixing mechanism, the filter screen can be rapidly fixed, the filter screen can be conveniently detached and cleaned, and the filtering effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat energy recovery devices, in particular to a sewage heat energy recovery and utilization device. Background Art

[0002] Waste heat recovery can generate economic and social benefits, and play an important role in energy conservation and environmental protection. If high-temperature sewage is directly discharged into sewage treatment, a large amount of heat energy will be wasted.

[0003] Publication No. CN219390618U discloses a sewage heat recovery device. The electric push rod pushes the piston to move and pushes the water in the upper cavity to one side of the filter plate, so that the sewage passes through the filter plate, and the filter plate is backwashed, which improves the cleaning effect of the filter plate. Then the sewage with impurities can be discharged through the sewage pipe. The S-shaped waterway formed by the partition can increase the flow path length of the sewage, increase the contact time between the sewage and the heat exchange tube, and make full use of the hot water. The fins provided can improve the heat exchange efficiency. However, the patent still has the following problems in actual use:

[0004] Although this sewage heat recovery device can push the water in the upper cavity toward the side of the filter plate by pushing the piston to move through the electric push rod, so that the sewage passes through the filter plate, backwashing the filter plate and improving the cleaning effect of the filter plate, the water flow inside the heat exchange tube may flow back during the flow, thereby causing part of the heat energy in the sewage to be wasted, thereby reducing the efficiency of the heat recovery and utilization of the device.

[0005] A sewage heat energy recovery and utilization device is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide a sewage heat energy recovery and utilization device to solve the problem raised in the above-mentioned background technology that the water in the upper cavity can be pushed to the side of the filter plate by pushing the piston to move through the electric push rod, so that the sewage passes through the filter plate, and the backwashing of the filter plate is achieved, thereby improving the cleaning effect of the filter plate. However, the water flow inside the heat exchange tube may flow back during the flow process, thereby causing part of the heat energy in the sewage to be wasted, thereby reducing the efficiency of the heat energy recovery and utilization of the device.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sewage heat recovery device, comprising a heat recovery mechanism, and a bellows installed inside the heat recovery mechanism;

[0008] A filter screen fixing mechanism and a filter screen installed inside the filter screen fixing mechanism are provided on one side of the top of the heat recovery mechanism;

[0009] Also includes:

[0010] The heat recovery mechanism comprises a box body, one side of the bottom of the box body is fixedly connected with a fixing sleeve, and one end of the fixing sleeve is fixedly connected with a bellows;

[0011] The end of the fixed sleeve away from the corrugated pipe is threadedly connected with a connecting sleeve, and the outer side of the connecting sleeve close to the end of the fixed sleeve is snap-connected with a first sealing ring, and the outer side of the first sealing ring is closely connected with the fixed sleeve;

[0012] Among them, one end of the fixed sleeve close to the bellows is fixedly connected to a first spring, and one end of the first spring is fixedly connected to a movable block.

[0013] Preferably, a second sealing ring is snap-connected to the outer side of one end of the movable block away from the first spring, the outer side of the second sealing ring is fit-connected to the fixed sleeve, and a through hole is formed at one end of the movable block close to the second sealing ring.

[0014] Preferably, a discharge valve is fixedly connected to one side of the bottom of the box body.

[0015] Preferably, the filter screen fixing mechanism comprises a filter box, the bottom of the filter box is fixedly connected to the box body, and one side of the top of the filter box is rotatably connected to a sealing cover.

[0016] Preferably, a fixing frame is fixedly connected to the other side of the top of the filter box, and a button is slidably connected to the bottom side of the fixing frame.

[0017] Preferably, one end of the button is fixedly connected to a baffle rod, one end of the baffle rod passes through the fixed frame and is engaged with the sealing cover, a sleeve is sleeved on the outer side of the other end of the baffle rod, one end of the sleeve is fixedly connected to the fixed frame, a second spring is provided inside the sleeve, and one end of the second spring is fit-connected to the baffle rod.

[0018] Preferably, a filter frame is provided inside the filter box, and the interior of the filter frame is engaged with the filter, a conduit is fitted and connected to one side of the filter frame, an end of the conduit away from the filter frame passes through the filter box and is fixedly connected to the box body, and the other end of the filter frame is fitted and connected to a feed valve.

[0019] Compared with the prior art, the utility model has the following beneficial effects: the sewage heat energy recovery and utilization device can avoid the backflow of water flow inside the bellows by setting a heat energy recovery mechanism, thereby causing waste of heat energy in the sewage; the filter screen can be quickly fixed by setting a filter screen fixing mechanism, which is convenient for disassembly and cleaning of the filter screen, thereby improving the filtering effect of the device. The specific contents are as follows:

[0020] 1. By setting up a heat recovery mechanism, the backflow of water inside the bellows can be avoided, which leads to the waste of heat energy in the sewage. By using the cooperation between the movable block and the fixed sleeve, the one-way flow of water in the bellows can be realized. The water can only enter from the fixed sleeve at the bottom of the box body, and then the water exchanges heat energy with the sewage outside when passing through the bellows, and finally flows out from the fixed sleeve at the top of the box body, so that the heat energy in the sewage can be recovered and utilized, which can avoid the waste of heat energy;

[0021] 2. The filter fixing mechanism can be set to quickly fix the filter, which is convenient for disassembly and cleaning of the filter, thereby improving the filtering effect of the device. By pressing the button, the blocking rod is driven to move into the sleeve, and the second spring is compressed while the blocking rod is separated from the sealing cover, thereby releasing the blocking rod from limiting the sealing cover. The sealing cover can be opened to facilitate the removal of the filter frame inside the filter box and the cleaning of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 For this utility model Figure 1 Front section structural diagram;

[0024] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure of the heat recovery mechanism;

[0025] Figure 4 For this utility model Figure 3 Schematic diagram of the structure of the middle spring in compressed state;

[0026] Figure 5 For this utility model Figure 2 Schematic diagram of the enlarged structure inside the middle filter box;

[0027] Figure 6 For this utility model Figure 5 Enlarged structural diagram at A in the middle.

[0028] In the figure: 1. heat recovery mechanism; 101. box body; 102. fixing sleeve; 103. bellows; 104. connecting sleeve; 105. first sealing ring; 106. first spring; 107. movable block; 108. second sealing ring; 109. through hole; 110. discharge valve; 2. filter fixing mechanism; 201. filter box; 202. sealing cover; 203. fixing frame; 204. button; 205. stop rod; 206. sleeve; 207. second spring; 208. filter frame; 209. filter; 210. conduit; 211. feed valve. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described 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.

[0030] See also Figure 1-6 The utility model provides a technical solution: a sewage heat recovery device, comprising a heat recovery mechanism 1, and a bellows 103 installed inside the heat recovery mechanism 1; a filter fixing mechanism 2 and a filter 209 installed inside the filter fixing mechanism 2 are arranged on one side of the top of the heat recovery mechanism 1; the heat recovery mechanism 1 comprises a box body 101, a fixing sleeve 102 is fixedly connected to one side of the bottom of the box body 101, and one end of the fixing sleeve 102 is fixedly connected to the bellows 103. By setting the bellows 103, the contact time between the water flow inside the bellows 103 and the sewage can be increased, thereby improving the efficiency of heat energy conversion;

[0031] The end of the fixing sleeve 102 away from the bellows 103 is threadedly connected with a connecting sleeve 104, and the outer side of the connecting sleeve 104 close to the end of the fixing sleeve 102 is snap-connected with a first sealing ring 105, and the outer side of the first sealing ring 105 is closely connected with the fixing sleeve 102. The first sealing ring 105 is provided to improve the sealing between the connecting sleeve 104 and the fixing sleeve 102. The internal structures of the fixing sleeves at both ends of the bellows 103 are symmetrically arranged, so as to realize the one-way flow of water.

[0032] A first spring 106 is fixedly connected to one end of the fixed sleeve 102 near the bellows 103, and a movable block 107 is fixedly connected to one end of the first spring 106. The first spring 106 can ensure that the movable block 107 always keeps in contact with the fixed sleeve 102 when there is no external pressure.

[0033] The outer side of the movable block 107 away from the end of the first spring 106 is engaged with a second sealing ring 108, and the outer side of the second sealing ring 108 is closely connected to the fixed sleeve 102. A through hole 109 is provided at one end of the movable block 107 close to the second sealing ring 108. By providing the through hole 109, it is convenient for external water to flow into the fixed sleeve 102; a discharge valve 110 is fixedly connected to one side of the bottom of the box body 101, and the discharge valve 110 is provided to facilitate the control of whether the sewage is discharged;

[0034] The filter fixing mechanism 2 includes a filter box 201, the bottom of the filter box 201 is fixedly connected to the box body 101, and a sealing cover 202 is rotatably connected to one side of the top of the filter box 201. The inner wall of the sealing cover 202 contacts the filter frame 208, and the position of the filter frame 208 can be fixed;

[0035] The other side of the top of the filter box 201 is fixedly connected with a fixing frame 203, and a button 204 is slidably connected to the bottom side of the fixing frame 203. One end of the button 204 is fixedly connected with a blocking rod 205, and one end of the blocking rod 205 penetrates the fixing frame 203 and is connected to the sealing cover 202 by clamping. A sleeve 206 is sleeved on the outer side of the other end of the blocking rod 205, and one end of the sleeve 206 is fixedly connected to the fixing frame 203. A second spring 207 is arranged inside the sleeve 206, and one end of the second spring 207 is closely connected to the blocking rod 205. The sleeve 206 can improve the stability of the movement of the blocking rod 205.

[0036] A filter frame 208 is provided inside the filter box 201, and the interior of the filter frame 208 is engaged with the filter 209. A conduit 210 is fitted and connected to one side of the filter frame 208. The end of the conduit 210 away from the filter frame 208 passes through the filter box 201 and is fixedly connected to the box body 101. The other end of the filter frame 208 is fitted and connected to a feed valve 211. Three filters 209 are provided inside the filter frame 208 to improve the filtering effect of sewage.

[0037] Working principle: Before using this sewage heat recovery device, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Figure 6 As shown, firstly, the sewage pipe is connected to the feed valve 211, and the discharge valve 110 is closed at the same time, and then the sewage is filtered through the filter screen 209 and then flows into the box body 101 through the conduit 210;

[0038] Secondly, water flows from the connecting sleeve 104 at the bottom of the box 101 into the fixed sleeve 102, and the movable block 107 is squeezed by water pressure to compress the first spring 106 while the water flows into the bellows 103 from the through hole 109. When the water flows through the bellows 103, it exchanges heat energy with the sewage outside, and finally flows out from the fixed sleeve 102 at the top of the box 101, so that the heat energy in the sewage can be recycled. By using the cooperation between the movable block 107 and the fixed sleeve 102, the one-way flow of water in the bellows 103 can be realized, so as to avoid the waste of heat energy in the sewage.

[0039] Finally, when the filter screen 209 needs to be cleaned, the button 204 is pressed to drive the stopper 205 to move into the sleeve 206, and the second spring 207 is compressed while the stopper 205 is separated from the sealing cover 202, thereby releasing the stopper 205 from limiting the sealing cover 202. The sealing cover 202 can be opened to facilitate the removal of the filter screen frame 208 inside the filter box 201, so that the filter screen 209 can be cleaned.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sewage heat recovery device, comprising a heat recovery mechanism (1), and a bellows (103) installed inside the heat recovery mechanism (1); A filter screen fixing mechanism (2) and a filter screen (209) installed inside the filter screen fixing mechanism (2) are provided on one side of the top of the heat energy recovery mechanism (1); It is characterized in that Also includes: The heat energy recovery mechanism (1) comprises a box body (101), a fixing sleeve (102) is fixedly connected to one side of the bottom of the box body (101), and one end of the fixing sleeve (102) is fixedly connected to a bellows (103); The end of the fixing sleeve (102) away from the bellows (103) is threadedly connected to a connecting sleeve (104), and the outer side of the connecting sleeve (104) close to the end of the fixing sleeve (102) is snap-connected with a first sealing ring (105), and the outer side of the first sealing ring (105) is closely connected to the fixing sleeve (102); One end of the fixed sleeve (102) close to the bellows (103) is fixedly connected to a first spring (106), and one end of the first spring (106) is fixedly connected to a movable block (107).

2. A sewage heat recovery and utilization device according to claim 1, characterized in that: The outer side of the movable block (107) away from the end of the first spring (106) is snap-connected with a second sealing ring (108), the outer side of the second sealing ring (108) is closely connected to the fixed sleeve (102), and a through hole (109) is provided at one end of the movable block (107) close to the second sealing ring (108).

3. The sewage heat recovery and utilization device according to claim 1 is characterized in that: A discharge valve (110) is fixedly connected to one side of the bottom of the box body (101).

4. The sewage heat recovery and utilization device according to claim 1 is characterized in that: The filter screen fixing mechanism (2) comprises a filter box (201), the bottom of the filter box (201) is fixedly connected to the box body (101), and one side of the top of the filter box (201) is rotatably connected to a sealing cover (202).

5. A sewage heat recovery and utilization device according to claim 4, characterized in that: A fixing frame (203) is fixedly connected to the other side of the top of the filter box (201), and a button (204) is slidably connected to the bottom side of the fixing frame (203).

6. The sewage heat recovery and utilization device according to claim 5, characterized in that: One end of the button (204) is fixedly connected to a blocking rod (205), one end of the blocking rod (205) passes through the fixed frame (203) and is snap-connected to the sealing cover (202), a sleeve (206) is sleeved on the outer side of the other end of the blocking rod (205), one end of the sleeve (206) is fixedly connected to the fixed frame (203), a second spring (207) is arranged inside the sleeve (206), and one end of the second spring (207) is snap-connected to the blocking rod (205).

7. The sewage heat recovery and utilization device according to claim 5, characterized in that: A filter frame (208) is provided inside the filter box (201), and the inside of the filter frame (208) is snap-connected with the filter screen (209). A conduit (210) is fitted and connected to one side of the filter frame (208), and one end of the conduit (210) away from the filter frame (208) passes through the filter box (201) and is fixedly connected to the box body (101), and the other end of the filter frame (208) is fitted and connected to a feed valve (211).

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