Natural gas energy conservation and emission reduction device

Abstract

The utility model relates to the technical field of energy conservation and emission reduction, and discloses a natural gas energy conservation and emission reduction device which solves the problem that heat contained in natural gas tail gas is not fully utilized, water flow enters a heat exchange box from a water inlet pipe, meanwhile, the natural gas tail gas enters a first bifurcated pipe from a gas inlet pipe, and the heat in the first bifurcated pipe is fully utilized. According to the heat exchange device, the contact area with water is preliminarily increased, then natural gas tail gas enters the multiple heat exchange pipes from the first branch pipe, the contact area with the water in the heat exchange box is greatly increased through multi-stage flow division and arrangement of the heat conduction plates, and then the heat exchange efficiency is improved; the retention time of the tail gas of the natural gas in the heat exchange pipe is greatly delayed, the tail gas of the natural gas and water in the heat exchange box are subjected to sufficient heat exchange operation, and high efficiency and energy conservation are achieved.

Description

Technical Field

[0001] This utility model relates to the field of energy conservation and emission reduction technology, specifically a natural gas energy conservation and emission reduction device. Background Technology

[0002] Natural gas boilers heat the boiler by burning natural gas. However, incomplete combustion can occur, causing natural gas exhaust to pollute the air. Furthermore, natural gas exhaust contains a large amount of heat, and direct discharge of this exhaust would result in some waste.

[0003] A Chinese patent with publication number CN218687401U discloses a natural gas energy-saving and emission-reduction device. In the process of using the device, natural gas exhaust gas enters the serpentine heat exchange tube from the natural gas exhaust gas inlet pipe and is then discharged from the exhaust pipe. During the flow of natural gas exhaust gas in the serpentine heat exchange tube, it preheats the water in the heat exchange box. However, because the natural gas exhaust gas flows very smoothly in the serpentine heat exchange tube, the heat exchange efficiency with the water in the heat exchange box is generally low, and the heat contained in the natural gas exhaust gas is not fully utilized. Utility Model Content

[0004] The purpose of this invention is to provide a natural gas energy-saving and emission-reduction device. By using this device, the problem of not fully utilizing the heat contained in the natural gas exhaust gas can be solved.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a natural gas energy-saving and emission-reduction device, comprising a heat exchange box, an emission-reduction heat exchange mechanism disposed inside the heat exchange box, a cleaning mechanism disposed on the inner side of the heat exchange box, a water inlet pipe fixedly installed at the upper end of the heat exchange box, and a drain pipe fixedly installed on one side of the heat exchange box. The emission-reduction heat exchange mechanism includes an air inlet pipe, which penetrates the heat exchange box and is fixedly connected. A first branch pipe is fixedly installed at one end of the air inlet pipe. Multiple sets of heat exchange tubes are fixedly installed at the end of the first branch pipe away from the air inlet pipe. A second branch pipe is fixedly installed at the end of the heat exchange tube away from the first branch pipe. An exhaust pipe is fixedly installed at the end of the second branch pipe away from the heat exchange tube. The exhaust pipe penetrates the heat exchange box and is fixedly connected. The heat exchange tubes are fixedly connected, with multiple heat-conducting plates fixedly installed on their outer surface and multiple flow-blocking blocks fixedly installed inside. Water flows into the heat exchange box from the inlet pipe, while natural gas exhaust gas enters the first branch pipe from the inlet pipe, initially increasing the contact area with the water. Then, the natural gas exhaust gas enters multiple heat exchange tubes from the first branch pipe. Through multi-stage flow distribution and the setting of heat-conducting plates, the contact area with the water in the heat exchange box is greatly increased, thereby improving the heat exchange efficiency. At the same time, due to the setting of multiple flow-blocking blocks, the residence time of natural gas exhaust gas in the heat exchange tubes is greatly delayed, allowing the natural gas exhaust gas to fully exchange heat with the water in the heat exchange box, achieving high efficiency and energy saving.

[0006] Preferably, a filter screen is fixedly installed inside the intake pipe. By setting the filter screen, particulate dust contained in the natural gas exhaust gas can be effectively filtered, thereby achieving the effect of emission reduction and reducing environmental pollution.

[0007] Preferably, a miniature vibration motor is fixedly installed on one side of the filter screen, and a collection groove is opened through the air inlet pipe. A collection box is slidably installed in the collection groove. When there are too many impurities on the surface of the filter screen, the miniature vibration motor is started to drive the filter screen to vibrate, causing the impurities on its surface to fall off through vibration and into the collection box in the collection groove for subsequent processing.

[0008] Preferably, a drain pipe is fixedly installed at the lower end of the heat exchange box, and a sliding groove is opened through one side of the heat exchange box. The cleaning mechanism includes a servo motor fixedly connected to the outer surface of the heat exchange box. A reciprocating screw is fixedly installed at the output end of the servo motor. A fixed plate is rotatably installed at the end of the reciprocating screw away from the servo motor. The fixed plate is fixedly connected to the outer surface of the heat exchange box. A driven plate is threaded on the outer side of the reciprocating screw. The driven plate is slidably connected to the sliding groove. A scraper is fixedly installed on one side of the driven plate. The servo motor drives the reciprocating screw to rotate, thereby driving the driven plate to drive the scraper to move horizontally back and forth, so as to scrape off the scale on the outer surface of the heat exchange tube and discharge it through the drain pipe to ensure the high efficiency of heat exchange.

[0009] Preferably, the scraper has multiple sets of scraping grooves running through its interior. Each set of scraping grooves corresponds to a set of heat exchange tubes. The scraping grooves, heat exchange tubes, and heat-conducting plates are all matched and slidably connected. The scraping grooves further improve the scraping effect and enhance the cleaning performance.

[0010] Preferably, telescopic plates are fixedly installed on both sides of the driven plate, and the end of the telescopic plate away from the driven plate is fixedly connected to the surface of the slide groove. The installation of the telescopic plates prevents water in the heat exchange box from leaking out, thereby ensuring the normal operation of the entire device.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This utility model proposes a natural gas energy-saving and emission-reduction device. First, water flows into the heat exchange box through the inlet pipe. At the same time, natural gas exhaust gas enters the first branch pipe through the inlet pipe, initially increasing the contact area with water. Then, the natural gas exhaust gas enters multiple heat exchange tubes from the first branch pipe. Through multi-stage diversion and the setting of heat-conducting plates, the contact area with water in the heat exchange box is greatly increased, thereby improving the heat exchange efficiency. At the same time, due to the setting of multiple flow-blocking blocks, the residence time of natural gas exhaust gas in the heat exchange tubes is greatly delayed, allowing the natural gas exhaust gas to fully exchange heat with the water in the heat exchange box, achieving high efficiency and energy saving. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the heat exchanger structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the emission reduction heat exchange mechanism and cleaning mechanism of this utility model;

[0016] Figure 4 This is a schematic diagram of the emission reduction heat exchange mechanism of this utility model;

[0017] Figure 5 This is a schematic diagram of the flow-blocking block structure of this utility model;

[0018] Figure 6 This is a schematic diagram of the cleaning mechanism structure of this utility model.

[0019] In the diagram: 1. Heat exchange box; 11. Water inlet pipe; 12. Drain pipe; 13. Sewage pipe; 14. Slide groove; 2. Emission reduction heat exchange mechanism; 21. Air inlet pipe; 22. Branch pipe one; 23. Heat exchange pipe; 231. Heat conduction plate; 232. Flow baffle; 24. Branch pipe two; 25. Exhaust pipe; 26. Filter screen; 27. Miniature vibration motor; 28. Collection tank; 29. ​​Collection box; 3. Cleaning mechanism; 31. Servo motor; 32. Reciprocating screw; 33. Fixed plate; 34. Driven plate; 35. Scraper; 36. Scraper groove; 37. Telescopic plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0022] Combination Figure 1-5A natural gas energy-saving and emission-reduction device includes a heat exchange box 1, an emission-reduction heat exchange mechanism 2 inside the heat exchange box 1, and a cleaning mechanism 3 on the inner side of the heat exchange box 1. The device is characterized in that: a water inlet pipe 11 is fixedly installed at the upper end of the heat exchange box 1, and a drain pipe 12 is fixedly installed on one side of the heat exchange box 1. The emission-reduction heat exchange mechanism 2 includes an air inlet pipe 21, which penetrates the heat exchange box 1 and is fixedly connected. A first branch pipe 22 is fixedly installed at one end of the air inlet pipe 21. Multiple sets of heat exchange pipes 23 are fixedly installed at the end of the first branch pipe 22 away from the air inlet pipe 21. A second branch pipe 24 is fixedly installed at the end of the heat exchange pipe 23 away from the first branch pipe 22. An exhaust pipe 25 is fixedly installed at the end of the second branch pipe 24 away from the heat exchange pipe 23. The exhaust pipe 25 penetrates the heat exchange box 1 and is fixedly connected to the heat exchange box 1. The heat exchange tube 23 is connected to a heat exchanger. Multiple heat-conducting plates 231 are fixedly installed on the outer surface of the heat exchange tube 23, and multiple flow-blocking blocks 232 are fixedly installed inside the heat exchange tube 23. Water flows into the heat exchange box 1 from the inlet pipe 11, while natural gas exhaust gas enters the branch pipe 22 from the inlet pipe 21, which initially increases the contact area with water. Then, the natural gas exhaust gas enters multiple heat exchange tubes 23 from the branch pipe 22. Through multi-stage diversion and the setting of heat-conducting plates 231, the contact area with water in the heat exchange box 1 is greatly increased, thereby improving the heat exchange efficiency. At the same time, due to the setting of multiple flow-blocking blocks 232, the residence time of natural gas exhaust gas in the heat exchange tube 23 is greatly delayed, so that the natural gas exhaust gas and the water in the heat exchange box 1 can fully exchange heat, achieving high efficiency and energy saving.

[0023] Combination Figure 4 The intake pipe 21 is equipped with a filter screen 26. The filter screen 26 can effectively filter the particulate dust contained in the natural gas exhaust gas, thereby achieving emission reduction and reducing environmental pollution.

[0024] Combination Figure 4 A micro vibration motor 27 is fixedly installed on one side of the filter screen 26. A collection groove 28 is opened through the air inlet pipe 21. A collection box 29 is slidably installed in the collection groove 28. When there are too many impurities on the surface of the filter screen 26, the micro vibration motor 27 is started to drive the filter screen 26 to vibrate, causing the impurities on its surface to fall off through vibration and fall into the collection box 29 in the collection groove 28 for subsequent processing.

[0025] Combination Figure 2 , Figure 6A drain pipe 13 is fixedly installed at the lower end of the heat exchange box 1. A sliding groove 14 is opened through one side of the heat exchange box 1. The cleaning mechanism 3 includes a servo motor 31 fixedly connected to the outer surface of the heat exchange box 1. A reciprocating screw 32 is fixedly installed at the output end of the servo motor 31. A fixed plate 33 is rotatably installed at the end of the reciprocating screw 32 away from the servo motor 31. The fixed plate 33 is fixedly connected to the outer surface of the heat exchange box 1. A driven plate 34 is threaded on the outer side of the reciprocating screw 32. The driven plate 34 is slidably connected to the sliding groove 14. A scraper 35 is fixedly installed on one side of the driven plate 34. The servo motor 31 drives the reciprocating screw 32 to rotate, thereby driving the driven plate 34 to drive the scraper 35 to move horizontally back and forth, so as to scrape off the scale on the outer surface of the heat exchange tube 23 and discharge it through the drain pipe 13 to ensure the high efficiency of heat exchange.

[0026] Combination Figure 6 The scraper 35 has multiple scraping grooves 36 running through its interior. Each of the multiple scraping grooves 36 corresponds to a different heat exchange tube 23. The scraping grooves 36 are matched with the heat exchange tube 23 and the heat conduction plate 231 and are slidably connected. The scraping effect is further improved by opening the scraping grooves 36, thereby enhancing the cleaning performance.

[0027] Combination Figure 6 Telescopic plates 37 are fixedly installed on both sides of the driven plate 34. The end of the telescopic plate 37 away from the driven plate 34 is fixedly connected to the surface of the slide groove 14. The setting of the telescopic plate 37 ensures that the water in the heat exchange box 1 will not leak out, so as to ensure the normal operation of the whole device.

[0028] The specific working process and principle of this utility model are as follows: First, the natural gas exhaust gas enters the inlet pipe 21 and is effectively filtered by the filter screen 26 to remove particulate dust. When there are too many impurities on the surface of the filter screen 26, the micro vibration motor 27 is activated to drive the filter screen 26 to vibrate, causing the impurities on its surface to fall off and into the collection box 29 in the collection tank 28 for subsequent processing. At the same time, water flows into the heat exchange box 1 from the water inlet pipe 11. Then, the natural gas exhaust gas enters the branch pipe 22 from the inlet pipe 21 to initially increase the contact area with water. Then, the natural gas exhaust gas enters the branch pipe 22... The gas enters multiple heat exchange tubes 23. Through multi-stage diversion and the setting of heat-conducting plates 231, the contact area with the water in the heat exchange box 1 is greatly increased, thereby improving the heat exchange efficiency. At the same time, due to the setting of multiple flow-blocking blocks 232, the residence time of natural gas exhaust gas in the heat exchange tubes 23 is greatly delayed, allowing the natural gas exhaust gas to fully exchange heat with the water in the heat exchange box 1, achieving high efficiency and energy saving. During use, the servo motor 31 drives the reciprocating screw 32 to rotate, which in turn drives the driven plate 34 to drive the scraper 35 to move horizontally back and forth, thereby scraping off the scale on the outer surface of the heat exchange tubes 23 and discharging it through the drain pipe 13 to ensure the high efficiency of heat exchange.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A natural gas energy-saving and emission-reduction device, comprising a heat exchange box (1), an emission-reduction heat exchange mechanism (2) being provided inside the heat exchange box (1), and a cleaning mechanism (3) being provided on the inner side of the heat exchange box (1), characterized in that: A water inlet pipe (11) is fixedly installed at the upper end of the heat exchange box (1), and a drain pipe (12) is fixedly installed on one side of the heat exchange box (1). The heat exchange mechanism (2) includes an air inlet pipe (21), which passes through the heat exchange box (1) and is fixedly connected. A branch pipe (22) is fixedly installed at one end of the air inlet pipe (21). Multiple sets of heat exchange pipes (23) are fixedly installed at the end of the branch pipe (22) away from the air inlet pipe (21). A branch pipe (24) is fixedly installed at the end of the heat exchange pipe (23) away from the branch pipe (22). An exhaust pipe (25) is fixedly installed at the end of the branch pipe (24) away from the heat exchange pipe (23). The exhaust pipe (25) passes through the heat exchange box (1) and is fixedly connected. Multiple heat-conducting plates (231) are fixedly installed on the outer surface of the heat exchange pipe (23), and multiple flow-blocking blocks (232) are fixedly installed inside the heat exchange pipe (23).

2. The natural gas energy-saving and emission-reduction device according to claim 1, characterized in that: A filter screen (26) is fixedly installed inside the air intake pipe (21).

3. The natural gas energy-saving and emission-reduction device according to claim 2, characterized in that: A micro vibration motor (27) is fixedly installed on one side of the filter (26), and a collection groove (28) is provided through the outside of the air inlet pipe (21), and a collection box (29) is slidably installed in the collection groove (28).

4. The natural gas energy-saving and emission-reduction device according to claim 1, characterized in that: A drain pipe (13) is fixedly installed at the lower end of the heat exchange box (1). A sliding groove (14) is opened through one side of the heat exchange box (1). The cleaning mechanism (3) includes a servo motor (31) fixedly connected to the outer surface of the heat exchange box (1). A reciprocating screw (32) is fixedly installed at the output end of the servo motor (31). A fixing plate (33) is rotatably installed at the end of the reciprocating screw (32) away from the servo motor (31). The fixing plate (33) is fixedly connected to the outer surface of the heat exchange box (1). A driven plate (34) is threaded on the outer side of the reciprocating screw (32). The driven plate (34) slides in connection with the sliding groove (14). A scraper (35) is fixedly installed on one side of the driven plate (34).

5. A natural gas energy-saving and emission-reduction device according to claim 4, characterized in that: The scraper (35) has multiple scraping grooves (36) running through its interior. Each set of scraping grooves (36) corresponds to a set of heat exchange tubes (23). The scraping grooves (36), heat exchange tubes (23), and heat conduction plates (231) are matched and slidably connected.

6. A natural gas energy-saving and emission-reduction device according to claim 4, characterized in that: Telescopic plates (37) are fixedly installed on both sides of the driven plate (34), and the end of the telescopic plate (37) away from the driven plate (34) is fixedly connected to the surface of the slide groove (14).

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