Air conditioning water circulation heating system

Abstract

The application discloses a circulating water heating system of an air conditioner, which comprises a shell and a heat pipe, the heat pipe is laid in the shell along the axial direction of the shell, and steam entering the shell and water in the heat pipe realize heat exchange according to the temperature difference; the circulating water heating system further comprises a wiper plate coaxially arranged in the shell, a wiper wrapping body corresponding to the heat pipe is embedded on the wiper plate, the wiper wrapping body is circumferentially arranged around the corresponding heat pipe, and the wiper plate is slidably arranged on the heat pipe through the wiper wrapping body; when the wiper plate moves back and forth along the length direction of the heat pipe, the condensed water film adhered to the surface of the heat pipe is scraped off through the wiper wrapping body, and the scraped condensed water slides along the disc surface of the wiper plate. The wiper plate is slidably arranged on the heat pipe through the wiper wrapping body, the wiper plate can synchronously move with the wiper wrapping body, the condensed water film adhered to the surface of the heat pipe is scraped off in time, the steam directly and fully contacts the surface of the heat pipe, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of air conditioning heating systems, and particularly relates to an air conditioning circulating water heating system. Background Technology

[0002] In an air conditioning circulating water heater, steam is introduced into the casing and exchanges heat with water flowing through heat pipes, thereby heating the water. During the heat exchange process, the steam releases heat and condenses to form liquid water. The liquid water first adheres to the surface of the heat pipe, forming a condensate film. As heat exchange continues, the presence of this condensate film acts as a barrier, hindering direct contact between the steam and the heat pipe surface, thus reducing heat exchange efficiency. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the present invention provides an air conditioning circulating water heating system, in which a scraper plate is set on the heat pipe by a scraper wrapper sliding on the heat pipe. The scraper plate can move synchronously with the scraper wrapper to scrape off the condensate film attached to the surface of the heat pipe in time, so that the steam can directly and fully contact the surface of the heat pipe and improve the heat exchange efficiency.

[0004] Technical solution: To achieve the above objectives, the present invention provides an air conditioning circulating water heating system, comprising a shell and heat pipes. The heat pipes are laid inside the shell along its axial direction, and the ends of the heat pipes are connected by tube sheet bundles. The two axial ends of the shell are respectively provided with inlet and outlet water seals. The steam entering the shell exchanges heat with the water in the heat pipes according to the temperature difference.

[0005] Its features include: a scraper disc coaxially disposed within the housing, wherein a scraper wrapping body corresponding to each heat pipe is embedded on the scraper disc, the scraper wrapping body is arranged to circumferentially surround the corresponding heat pipe, and the scraper disc is disposed on the heat pipe through the sliding cooperation of the scraper wrapping body; when the scraper disc moves back and forth along the length of the heat pipe, the scraper wrapping body scrapes off the condensate film adhering to the surface of the heat pipe, and the scraped condensate slides down the surface of the scraper disc.

[0006] Furthermore, the wiper wrapper is a high-temperature resistant elastic sleeve made of fluororubber, and the heat pipe passes through the corresponding high-temperature resistant elastic sleeve axially. The high-temperature resistant elastic sleeve, relying on its own elastic physical properties, deforms with the heat pipe as the heat pipe expands and contracts with temperature, maintaining a structural state that always surrounds the surface of the heat pipe circumferentially.

[0007] Furthermore, the wiper disc is provided with a number of vent holes, and each vent hole is provided with a corresponding orifice valve, which includes an open venting state and a closed venting state.

[0008] When the direction of the wiper disc's movement is opposite to the direction of steam flow inside the housing, the orifice valve switches from the closed and air-blocking state to the open and venting state, allowing the wiper disc facing the steam flow to open the vent hole and allow steam to pass through.

[0009] When the direction of the wiper disc's movement is the same as the direction of steam flow inside the housing, the orifice valve switches from the open venting state to the closed vent blocking state, causing the wiper disc facing away from the steam flow to close the vent and prevent steam from passing through.

[0010] Furthermore, the orifice valve includes a valve seat, an elastic connecting part, and a valve cover plate connected in sequence along the steam flow direction; the valve seat with a through cavity is located at the air inlet end of the vent hole, the valve cover plate is located at the air outlet end of the vent hole, and the elastic connecting part is located inside the vent hole;

[0011] When the direction of the wiper disc's movement is opposite to the direction of steam flow inside the housing, the valve cover plate is pushed off the air inlet end of the vent by the force of the incoming steam flow, thus opening the valve.

[0012] When the direction of the wiper disc's movement is the same as the direction of steam flow inside the housing, the valve cover plate is pushed against the steam flow, and the force is less than the elastic force it receives, thus covering the air inlet end of the vent hole and closing the valve.

[0013] Furthermore, it includes a drive mechanism corresponding to the wiper disc, which drives the wiper disc to move back and forth on the heat pipe.

[0014] Furthermore, the surface of the shell is covered with an insulation layer.

[0015] Furthermore, the steam inlet of the shell is connected to a temperature control module, and the condensate outlet of the shell is connected to a steam trap assembly.

[0016] Furthermore, the housing is equipped with a pressure gauge, a safety valve, and a vent valve.

[0017] Furthermore, the inlet seal is equipped with an inlet water temperature detection device, and the outlet seal is equipped with an outlet water temperature detection device.

[0018] Beneficial effects: The present invention uses a scraper plate that slides on the heat pipe with a scraper wrapper. The scraper plate can move synchronously with the scraper wrapper to promptly scrape off the condensate film adhering to the surface of the heat pipe, so that the surface of the heat pipe is exposed to the steam atmosphere again, allowing the steam to come into direct and full contact with the surface of the heat pipe. The scraper plate moves on the heat pipe, thereby improving the heat exchange efficiency and making it suitable for large-scale promotion and application. Attached Figure Description

[0019] Appendix Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Appendix Figure 2 A schematic diagram of the squeegee and its drive mechanism on the heat pipe;

[0021] Appendix Figure 3 This is a schematic diagram of the wiper disc structure;

[0022] Appendix Figure 4 This is a schematic diagram of a structure where the direction of the squeegee's movement is the same as the direction of steam flow inside the casing.

[0023] Appendix Figure 5 This is a schematic diagram of a structure where the direction of the squeegee movement is opposite to the direction of steam flow inside the casing.

[0024] Appendix Figure 6 For the appendix Figure 4 A magnified schematic diagram of the structure of region A in the middle. Detailed Implementation

[0025] The invention will now be further described with reference to the accompanying drawings.

[0026] As attached Figure 1 As shown, an air conditioning circulating water heating system includes a shell 1 and heat pipes 7. The heat pipes 7 are laid axially within the shell 1, and their ends are bundled together by a tube sheet 5. An inlet cap 3 and an outlet cap 4 are respectively installed at the two axial ends of the shell 1. Steam entering the shell 1 exchanges heat with water in the heat pipes 7 based on the temperature difference. The surface of the shell 1 is covered with an insulation layer 2. A temperature control module 15 is connected to the steam inlet 16 of the shell 1, and a drain valve assembly 14 is connected to the condensate outlet 17 of the shell 1. A pressure gauge 11, a safety valve 18, and a vent valve 19 are installed on the shell 1. An inlet water temperature detection device 12 is installed on the inlet cap, and an outlet water temperature detection device 13 is installed on the outlet cap 4. Both the inlet water temperature detection device 12 and the outlet water temperature detection device 13 are thermometers.

[0027] During the heat exchange process, steam releases heat and condenses to form liquid water. The liquid water first adheres to the surface of the heat pipe, forming a condensate film. As heat exchange continues, the presence of the condensate film acts as a barrier that hinders heat exchange, preventing direct contact between the steam and the surface of the heat pipe, thereby reducing the heat exchange efficiency.

[0028] To address the above problems, the technical solution proposed by this invention also includes: as shown in the appendix. Figure 2 and attached Figure 3As shown, the device includes a scraper disc 6 coaxially disposed within the housing 1. Each scraper disc 6 has a corresponding scraper wrapper 20 embedded in it, which circumferentially surrounds the corresponding heat pipe 7. The scraper disc 6 is slidably mounted on the heat pipe 7 via the scraper wrapper 20. When the scraper disc 6 moves back and forth along the length of the heat pipe 7, the scraper wrapper 20 scrapes away the condensate film adhering to the surface of the heat pipe 7, and the scraped condensate slides down the surface of the scraper disc 6. This invention uses the scraper wrapper 20 to slide and mount the scraper disc 6 on the heat pipe. The scraper disc 6 can move synchronously with the scraper wrapper 20, promptly scraping away the condensate film adhering to the surface of the heat pipe. The surface of the heat pipe is then re-exposed to the steam atmosphere, allowing direct and sufficient contact between the steam and the surface of the heat pipe. The scraper disc 6 moves back and forth on the heat pipe 7, thereby improving heat exchange efficiency.

[0029] In this invention, preferably, the wiper wrapper 20 is a high-temperature resistant elastic sleeve made of fluororubber, through which the heat pipe 7 axially passes. The high-temperature resistant elastic sleeve, relying on its elastic physical properties, deforms along with the heat pipe 7 as it expands and contracts with temperature, maintaining a structural state that always circumferentially surrounds the surface of the heat pipe 7. Therefore, the wiping efficiency is not affected by the thermal expansion and contraction of the heat pipe 7. Regardless of whether the heat pipe 7 expands or contracts, the wiper wrapper 20, moving with the wiper disc 6, can achieve seamless, encircling contact with the heat pipe 7, thereby improving the thoroughness and efficiency of wiping and contributing to increased heat exchange efficiency.

[0030] It should be noted that, because the wiper disc 6 moves back and forth within the housing 1, it obstructs and disrupts the flow of steam. To reduce this impact, the solution adopted in this invention is as follows: Figure 3 Appendix Figure 4 and appendix Figure 5 As shown: The wiper disc 6 has several vent holes 60 distributed on it. Each vent hole 60 is provided with a corresponding orifice valve 21. The orifice valve 21 includes an open venting state and a closed venting state.

[0031] As attached Figure 5 As shown, when the wiping direction of the wiper disc 6 is opposite to the steam flow direction inside the housing 1, the orifice valve 21 switches from the closed blocking state to the open venting state, so that the wiper disc 6 facing the steam flow opens the vent hole 60 to allow steam to pass through. After the vent hole 60 is opened, the wiper disc 6 has a hollow structure, thereby reducing the obstruction effect of the wiper disc 6 on the steam flow inside the housing 1.

[0032] As attached Figure 4As shown, when the wiping direction of the wiper disc 6 is the same as the steam flow direction inside the housing 1, the orifice valve 21 switches from the open venting state to the closed vent blocking state, so that the wiper disc 6 facing away from the steam flow closes the vent hole 60 to prevent steam from passing through. After the vent hole 60 is closed, the wiper disc 6 is equivalent to a solid structure, which prevents steam from passing through the vent hole 60 and disturbing the normally flowing steam.

[0033] This invention provides a preferred embodiment of the orifice valve 21, as shown in the attached figure. Figure 6 As shown, the orifice valve 21 includes a valve seat 2.3, an elastic connecting part 2.2, and a valve cover plate 2.1 connected sequentially along the steam flow direction; the valve seat 2.3, having a through cavity 2.30, is located at the air inlet end of the vent 60, the valve cover plate 2.1 is located at the air outlet end of the vent 60, and the elastic connecting part 2.2 is located inside the vent 60; wherein, the elastic connecting part 2.2 is a spring, and the cross-sectional shape of the through cavity 2.30 of the valve seat 2.3 is hexagonal, which facilitates the use of a wrench to install the valve seat 2.3 at the air inlet end of the vent 60 through threaded engagement.

[0034] As attached Figure 5 As shown, when the squeegee 6 moves in the opposite direction to the steam flow direction inside the housing 1, the valve cover plate 2.1 is pushed off the air inlet of the vent hole 60 by the thrust of the incoming steam flow, thus opening the valve.

[0035] As attached Figure 4 As shown, when the squeegee 6 moves in the same direction as the steam flow direction inside the housing 1, the valve cover plate 2.1 is pushed against the steam flow with a force less than the elastic force it receives, thus covering the air inlet end of the vent 60 and closing the valve.

[0036] The orifice valve 21 of the present invention has a simple structure, does not rely on external power supply, and achieves opening or closing of the valve by combining its own structural physical characteristics with steam flow. It has a stable structure and a long service life.

[0037] As attached Figure 2 As shown, a drive mechanism 8 corresponding to the wiper disc 6 is included, which drives the wiper disc 6 to move back and forth on the heat pipe 7. The drive mechanism 8 of the present invention includes a screw 81, a guide rod 82, and a servo motor 83. The screw 81 is threaded through a connecting lug 9 of the wiper disc 6, and the guide rod 82 is slidably inserted through another connecting lug 9 of the wiper disc 6. The servo motor 83 is driven by the screw 81.

[0038] The air conditioning circulating heating system of the present invention is used in air conditioning heating systems. The heating medium is steam, with cold water entering and hot water exiting. It has the advantages of rapid heating and high thermal efficiency.

[0039] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An air conditioning circulating water heating system, comprising a shell (1) and a heat pipe (7), wherein the heat pipe (7) is laid in the shell (1) along the axial direction, and the ends of the heat pipe (7) are bundled through a tube sheet (5). The two axial ends of the shell (1) are respectively provided with an inlet seal (3) and an outlet seal (4). The steam entering the shell (1) and the water in the heat pipe (7) exchange heat according to the temperature difference. Its features are: The device includes a scraper disc (6) coaxially disposed within the housing (1). The scraper disc (6) is fitted with scraper wrappers (20) corresponding to the heat pipes (7). The scraper wrappers (20) are arranged to surround the corresponding heat pipes (7) in a circumferential manner. The scraper disc (6) is slidably disposed on the heat pipes (7) through the scraper wrappers (20). When the scraper disc (6) moves back and forth along the length of the heat pipes (7), the scraper wrappers (20) scrape off the condensate film adhering to the surface of the heat pipes (7). The scraped condensate slides down the surface of the scraper disc (6). The wiper disc (6) has a plurality of vent holes (60) distributed on it. Each vent hole (60) is provided with a corresponding orifice valve (21). The orifice valve (21) includes an open venting state and a closed venting state. When the direction of the squeegee (6) is opposite to the direction of the steam flow inside the housing (1), the orifice valve (21) switches from the closed blocking state to the open venting state, so that the squeegee (6) facing the steam flow opens the vent (60) to allow steam to pass through. When the direction of the wiper disc (6) is the same as the direction of steam flow in the housing (1), the orifice valve (21) switches from the open venting state to the closed venting state, so that the wiper disc (6) facing away from the steam flow closes the vent (60) to prevent steam from passing through.

2. The air conditioning circulating water heating system according to claim 1, characterized in that: The wiper wrapper (20) is a high-temperature resistant elastic sleeve made of fluororubber. The heat pipe (7) passes through the corresponding high-temperature resistant elastic sleeve axially. The high-temperature resistant elastic sleeve relies on its own elastic physical properties to deform with the heat pipe (7) under the state of thermal expansion and contraction, and maintains the structural state of always surrounding and wrapping the surface of the heat pipe (7).

3. The air conditioning circulating water heating system according to claim 1, characterized in that: The orifice valve (21) includes a valve seat (2.3), an elastic connecting part (2.2), and a valve cover plate (2.1) connected in sequence along the steam flow direction; the valve seat (2.3), which has a through cavity (2.30), is located at the air inlet end of the vent (60), the valve cover plate (2.1) is located at the air outlet end of the vent (60), and the elastic connecting part (2.2) is located inside the vent (60); When the direction of the squeegee (6) is opposite to the direction of the steam flow in the housing (1), the valve cover plate (2.1) is pushed by the opposing steam flow and overcomes the elastic force to disengage from the air inlet end of the vent (60), thus opening the valve. When the direction of the squeegee (6) is the same as the direction of the steam flow in the housing (1), the valve cover plate (2.1) is less than the elastic force it receives due to the upward thrust of the steam flow, and covers the air inlet end of the vent (60) to achieve valve closure.

4. The air conditioning circulating water heating system according to claim 1, characterized in that: It includes a drive mechanism (8) corresponding to the wiper disc (6), which drives the wiper disc (6) to move back and forth on the heat pipe (7).

5. An air conditioning circulating water heating system according to claim 1, characterized in that: The surface of the shell (1) is covered with a heat insulation layer (2).

6. An air conditioning circulating water heating system according to claim 1, characterized in that: The steam inlet (16) of the housing (1) is connected to a temperature control module (15), and the condensate outlet (17) of the housing (1) is connected to a steam trap assembly (14).

7. An air conditioning circulating water heating system according to claim 1, characterized in that: The housing (1) is equipped with a pressure gauge (11), a safety valve (18) and a vent valve (19).

8. An air conditioning circulating water heating system according to claim 1, characterized in that: The inlet end cap is equipped with an inlet water temperature detection device (12), and the outlet end cap (4) is equipped with an outlet water temperature detection device (13).

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