Smoke-water heat exchange assembly of cogeneration unit

Abstract

The utility model discloses a smoke-water heat exchange assembly of a cogeneration unit, which relates to the technical field of smoke-water heat exchange and comprises a heat exchange box, a dust removal box is arranged at the lower end of the heat exchange box, a servo motor is fixedly mounted at the front end of the dust removal box, an output shaft of the servo motor is fixedly connected with an adjusting plate, and the lower end of the adjusting plate abuts against the bottom wall of the dust removal box. A partition plate is fixedly connected into the dust removal box and equally divides the dust removal box into two filter cavities, symmetrical plugging blocks are slidably connected to the two sides of the dust removal box, filter plates are fixedly mounted on the sides, close to the partition plate, of the plugging blocks, and the filter plates abut against the filter cavities on the same sides. The device has the beneficial effects that when the filter plate on one side is blocked, the servo motor drives the adjusting plate to rotate, so that the adjusting plate rotates around the output shaft of the servo motor to the position below the blocked filter plate, flue gas enters the dust removal box, dust in the flue gas is filtered out through the clean filter plate, and therefore the motion path of the flue gas is changed; therefore, the blocked filter plate can be cleaned under the condition that the work is not influenced.

Description

Technical Field

[0001] This utility model relates to the field of flue water heat exchange technology, and in particular to a flue water heat exchange component for a combined heat and power unit. Background Technology

[0002] Combined heat and power (CHP) is an efficient and clean energy utilization method that combines power generation and heating to achieve cascaded energy utilization. In the CHP process, heat from flue gas is transferred to water through specialized heat exchange equipment, realizing energy recovery and utilization.

[0003] A search revealed Chinese patent publication number CN219867958U, which discloses a flue gas heat exchange component for a combined heat and power (CHP) unit. This patent filters the flue gas to prevent dust from adhering to the outside of the heat exchange tubes and affecting the heat exchange effect. After the filtered gas flows into the heat exchange chamber, water flows into the heat exchange tubes through the second and first water supply pipes. The high-temperature flue gas contains a large amount of heat, which exchanges heat with the water inside the heat exchange tubes. However, this device has a problem: when dust accumulates on the filter screen, the flue gas supply needs to be stopped before the filter screen can be removed and cleaned, which affects the heat exchange efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a flue water heat exchange component for a combined heat and power unit in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A flue water heat exchange component for a combined heat and power unit includes a heat exchange box, a dust removal box at the lower end of the heat exchange box, a connecting component between the dust removal box and the heat exchange box, an air inlet pipe fixedly connected to the lower end of the dust removal box, and an adjustment mechanism inside the dust removal box.

[0007] The adjustment mechanism includes a servo motor, which is fixedly installed at the front end of the dust collector. An adjustment plate is fixedly connected to the output shaft of the servo motor. The lower end of the adjustment plate abuts against the bottom wall of the dust collector. A partition plate is fixedly connected inside the dust collector, which divides the dust collector into two filter chambers. The upper end of the adjustment plate abuts against the lower end of the partition plate.

[0008] Symmetrical sealing blocks are slidably connected on both sides of the dust collector. A filter plate is fixedly installed on the side of the sealing block closest to the partition plate. The filter plate abuts against the filter chamber on the same side. Limiting components are provided on the sealing block.

[0009] Preferably, the limiting component includes a limiting block, which is fixedly connected to the side of the sealing block away from the partition plate. The upper end of the limiting block is provided with a fixing bolt, which is threadedly connected to the dust collector box.

[0010] Preferably, the connecting assembly includes a connecting pipe, which is fixedly connected between the heat exchange box and the dust removal box, and a gas flow meter is fixedly installed inside the connecting pipe.

[0011] Preferably, the heat exchange box has symmetrical heat exchange tubes on both sides, the heat exchange tubes are spiral in shape, and the heat exchange box on the same side is fixedly connected to an outlet pipe and an inlet pipe.

[0012] Preferably, the water outlet pipe is fixedly connected to the upper end of the heat exchange tube on the same side, and the water inlet pipe is fixedly connected to the lower end of the heat exchange tube on the same side.

[0013] Preferably, the heat exchange box has multiple air vents symmetrically opened on both sides, and the multiple air vents are arranged at equal intervals. Symmetrical dustproof plates are hinged on both sides of the heat exchange box, and the hinge axis of the dustproof plates is located below the air vents.

[0014] Preferably, symmetrical locking blocks are rotatably connected to both sides of the heat exchange box, and the locking blocks are located above the air outlet.

[0015] The beneficial effect is that when one side of the filter plate is blocked, the servo motor drives the adjustment plate to rotate, so that the adjustment plate rotates around the output shaft of the servo motor to the bottom of the blocked filter plate, so that the flue gas enters the dust collection box, and then the dust in the flue gas is filtered out by the clean filter plate, thereby changing the movement path of the flue gas and cleaning the blocked filter plate without affecting the operation.

[0016] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a front view of a flue water heat exchange component for a cogeneration unit as described in this utility model;

[0019] Figure 2 This is a cross-sectional view of the dust collector box of the flue water heat exchange component of a cogeneration unit as described in this utility model;

[0020] Figure 3 yes Figure 2 Enlarged view of point A;

[0021] Figure 4 This is a right view of a flue water heat exchange component for a cogeneration unit as described in this utility model;

[0022] Figure 5 This is a cross-sectional view of the heat exchange box of a combined heat and power unit flue water heat exchange component according to the present invention.

[0023] The reference numerals in the attached drawings are explained as follows: 101, heat exchange box; 102, dust removal box; 201, connecting pipe; 202, gas flow meter; 203, air inlet pipe; 301, water outlet pipe; 302, heat exchange tube; 303, water inlet pipe; 401, servo motor; 402, adjusting plate; 403, partition plate; 404, sealing block; 405, filter plate; 501, limiting block; 502, fixing bolt; 601, air outlet; 602, dustproof plate; 603, locking block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] like Figures 1-5 As shown, a flue water heat exchange component for a cogeneration unit includes a heat exchange box 101, a dust removal box 102 at the lower end of the heat exchange box 101, a connecting component between the dust removal box 102 and the heat exchange box 101, an air inlet pipe 203 fixedly connected to the lower end of the dust removal box 102, and an adjustment mechanism inside the dust removal box 102.

[0028] The adjustment mechanism includes a servo motor 401, which is fixedly installed at the front end of the dust collection box 102. An adjustment plate 402 is fixedly connected to the output shaft of the servo motor 401. The lower end of the adjustment plate 402 abuts against the bottom wall of the dust collection box 102. A partition plate 403 is fixedly connected inside the dust collection box 102, which divides the dust collection box 102 into two filter chambers. The upper end of the adjustment plate 402 abuts against the lower end of the partition plate 403.

[0029] Symmetrical blocking blocks 404 are slidably connected to both sides of the dust collector 102. A filter plate 405 is fixedly installed on the side of the blocking block 404 near the partition plate 403. The filter plate 405 abuts against the filter chamber on the same side. A limiting component is provided on the blocking block 404. When one side of the filter plate 405 is blocked, the servo motor 401 receives an adjustment signal and drives the adjustment plate 402 to rotate, so that the adjustment plate 402 rotates around the output shaft of the servo motor 401 to below the blocked filter plate 405, so that the flue gas enters the dust collector 102 from the lower air inlet pipe 203, and then filters the dust in the flue gas through the clean filter plate 405, thereby changing the movement path of the flue gas, so that the blocked filter plate 405 can be cleaned without affecting the operation.

[0030] The limiting component includes a limiting block 501, which is fixedly connected to the side of the blocking block 404 away from the partition plate 403. The upper end of the limiting block 501 is provided with a fixing bolt 502, which is threadedly connected to the dust collection box 102. After the adjusting plate 402 is adjusted, the fixing bolt 502 is rotated to make the limiting block 501 disengage from the dust collection box 102, and then the blocked filter plate 405 is pulled out for cleaning.

[0031] The connection assembly includes a connecting pipe 201, which is fixedly connected between the heat exchange box 101 and the dust removal box 102. A gas flow meter 202 is fixedly installed inside the connecting pipe 201. The filtered flue gas enters the heat exchange box 101 through the connecting pipe 201. As the dust on the filter plate 405 increases and causes blockage, the gas flow meter 202 detects that the gas flow rate has slowed down. At this time, the gas flow meter 202 controls the start of the servo motor 401.

[0032] The heat exchange box 101 is provided with symmetrical heat exchange tubes 302 on both sides. The heat exchange tubes 302 are spiral in shape. The heat exchange box 101 on the same side is fixedly connected with an outlet pipe 301 and an inlet pipe 303.

[0033] The water outlet pipe 301 is fixedly connected to the upper end of the heat exchange tube 302 on the same side, and the water inlet pipe 303 is fixedly connected to the lower end of the heat exchange tube 302 on the same side. Water is introduced into the heat exchange tube 302 through the water inlet pipe 303. The filtered flue gas enters the heat exchange box 101 and exchanges heat with the water in the heat exchange tube 302. Then the hot water flows out from the water outlet pipe 301.

[0034] Multiple air vents 601 are symmetrically opened on both sides of the heat exchange box 101. The multiple air vents 601 are arranged at equal intervals. Symmetrical dustproof plates 602 are hinged on both sides of the heat exchange box 101. The hinge axis of the dustproof plate 602 is located below the air vents 601.

[0035] Symmetrical locking blocks 603 are rotatably connected to both sides of the heat exchange box 101. The locking blocks 603 are located above the air outlet 601. The hotter gas approaches the top wall of the heat exchange box 101. After heat exchange, the flue gas moves downward and leaves the heat exchange box 101 through the air outlet 601. When the device is not in use, the dust cover 602 is flipped upward to block the air outlet 601. Then, the locking blocks 603 are rotated to limit the position of the dust cover 602.

[0036] Working Principle: During operation, flue gas is introduced into the dust collector 102 through the inlet pipe 203. After being filtered by one side filter plate 405, the flue gas enters the heat exchanger 101. When one side filter plate 405 becomes clogged, the gas flow meter 202 detects a slowdown in gas flow. At this time, the gas flow meter 202 controls the servo motor 401 to start. The servo motor 401 receives an adjustment signal and drives the adjustment plate 402 to rotate, causing the adjustment plate 402 to rotate around the output shaft of the servo motor 401 until it reaches below the clogged filter plate 405. After the adjustment plate 402 completes its adjustment, the fixing bolt 502 is rotated to disengage the limit block 501 from the dust collector 102. Subsequently, the clogged filter plate 405 is pulled out for cleaning, allowing the flue gas to enter the dust collector 101 from the lower inlet pipe 203. Inside the dust chamber 102, the dust in the flue gas is filtered out by a clean filter plate 405, thereby changing the movement path of the flue gas. This allows the clogged filter plate 405 to be cleaned without affecting the operation. At the same time, water is introduced into the heat exchange tube 302 through the water inlet pipe 303. The filtered flue gas enters the heat exchange box 101 and exchanges heat with the water in the heat exchange tube 302. Then, the hot water flows out from the water outlet pipe 301. The hotter gas approaches the top wall of the heat exchange box 101. After heat exchange, the flue gas moves downward and leaves the heat exchange box 101 through the air outlet 601. When the device is not in use, the dustproof plate 602 is flipped upward to block the air outlet 601. Then, the locking block 603 is rotated to limit the position of the dustproof plate 602.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flue water heat exchange component for a combined heat and power (CHP) unit, comprising a heat exchange box (101), wherein a dust collection box (102) is provided at the lower end of the heat exchange box (101), characterized in that: A connecting component is provided between the dust removal box (102) and the heat exchange box (101). An air inlet pipe (203) is fixedly connected to the lower end of the dust removal box (102). An adjustment mechanism is provided inside the dust removal box (102). The adjustment mechanism includes a servo motor (401), which is fixedly installed at the front end of the dust collection box (102). An adjustment plate (402) is fixedly connected to the output shaft of the servo motor (401). The lower end of the adjustment plate (402) abuts against the bottom wall of the dust collection box (102). A partition plate (403) is fixedly connected inside the dust collection box (102). The partition plate (403) divides the dust collection box (102) into two filter chambers. The upper end of the adjustment plate (402) abuts against the lower end of the partition plate (403). The dust collector (102) has symmetrical sealing blocks (404) slidably connected on both sides. A filter plate (405) is fixedly installed on the side of the sealing block (404) near the partition plate (403). The filter plate (405) abuts against the filter chamber on the same side. A limiting component is provided on the sealing block (404).

2. The flue water heat exchange component for a combined heat and power unit according to claim 1, characterized in that: The limiting component includes a limiting block (501), which is fixedly connected to the side of the sealing block (404) away from the partition plate (403). The upper end of the limiting block (501) is provided with a fixing bolt (502), which is threadedly connected to the dust collection box (102).

3. The flue water heat exchange component for a combined heat and power unit according to claim 1, characterized in that: The connection assembly includes a connecting pipe (201), which is fixedly connected between the heat exchange box (101) and the dust removal box (102), and a gas flow meter (202) is fixedly installed inside the connecting pipe (201).

4. The flue water heat exchange component for a combined heat and power unit according to claim 1, characterized in that: The heat exchange box (101) is provided with symmetrical heat exchange tubes (302) on both sides. The heat exchange tubes (302) are spiral in shape. The heat exchange box (101) on the same side is fixedly connected with an outlet pipe (301) and an inlet pipe (303).

5. A flue water heat exchange component for a combined heat and power unit according to claim 4, characterized in that: The water outlet pipe (301) is fixedly connected to the upper end of the heat exchange pipe (302) on the same side, and the water inlet pipe (303) is fixedly connected to the lower end of the heat exchange pipe (302) on the same side.

6. A flue water heat exchange component for a combined heat and power unit according to claim 1, characterized in that: The heat exchange box (101) has multiple air vents (601) symmetrically opened on both sides, and the multiple air vents (601) are arranged at equal intervals. The heat exchange box (101) is hinged to both sides with symmetrical dustproof plates (602), and the hinge axis of the dustproof plate (602) is located below the air vents (601).

7. A flue water heat exchange component for a combined heat and power unit according to claim 6, characterized in that: The heat exchange box (101) is rotatably connected to symmetrical locking blocks (603) on both sides, and the locking blocks (603) are located above the air outlet (601).

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