Central air conditioner heat energy recovery device

Abstract

The utility model provides a central air-conditioning heat energy recovery device, and belongs to the technical field of heat energy recovery. Comprising a heat energy recycling box, a box cover is fixed to the top of the heat energy recycling box, an air inlet pipe and an air outlet pipe are fixed to the box cover, the lower end of the air inlet pipe and the lower end of the air outlet pipe extend into the heat energy recycling box and are connected with flow dividing discs, and a plurality of flow dividing pipes are evenly installed between the two flow dividing discs and jointly sleeved with a cleaning disc; a sliding block is fixed to the top of the cleaning disc and slidably mounted on the lower surface of the inner top wall of the box cover, a reciprocating lead screw is rotatably mounted at the inner top of the box cover and penetrates through the middle of the sliding block, and a servo motor is matched with the end of the reciprocating lead screw. The heat energy recovery device has an automatic cleaning function, can perform automatic cleaning and nursing in a non-stop state, is favorable for ensuring the heat energy recovery effect, also has an automatic pressure relief function, can recover a part of heat loss during pressure relief, and is high in overall recovery efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat energy recovery technical field, especially in central air conditioning heat energy recovery device. BACKGROUND

[0002] The central air conditioning system is composed of one or more cold and heat source systems and multiple air conditioning systems, which is different from the traditional refrigerant type air conditioner, and centrally processes air to achieve comfort requirements.

[0003] At present, the Chinese patent with the publication number CN220852504U discloses a central air conditioning heat energy recycling device, which comprises a heat exchange box.

[0004] In the prior art, a sealing cover, a locking block and a locking groove structure are adopted to realize detachable installation, so as to facilitate cleaning of the surface impurities of the key component for heat energy recovery, thereby ensuring the heat energy recovery efficiency.

[0005] Therefore, the present application provides a central air conditioning heat energy recovery device to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0006] The utility model solves the technical problem to provide a central air conditioning heat energy recovery device to solve the heat energy recovery device in the prior art through the way of disassembly and assembly for later maintenance and cleaning, which leads to complicated operation and the problem that the shutdown operation will affect the heat energy recovery efficiency.

[0007] To solve the above technical problems, the utility model provides the following technical scheme:

[0008] A central air conditioning heat energy recovery device comprises a heat energy recovery box, a box cover is fixed to the top of the heat energy recovery box, an air inlet pipe and an air outlet pipe are fixed to the box cover, the lower ends of the air inlet pipe and the air outlet pipe extend into the heat energy recovery box and are connected with a flow dividing disc, a plurality of flow dividing pipes are uniformly installed between the two flow dividing discs, a cleaning disc is jointly arranged on the plurality of flow dividing pipes, a sliding block is fixed to the top of the cleaning disc, the sliding block is slidingly installed on the lower surface of the inner top wall of the box cover, a reciprocating lead screw is rotatably installed on the inner top of the box cover, the reciprocating lead screw penetrates the middle part of the sliding block, and a servo motor is matched with the end part of the reciprocating lead screw.

[0009] Optionally, a drain pipe is mounted on the bottom of the heat energy recovery tank.

[0010] Optionally, the servo motor is fixed to the upper end surface of the tank cover.

[0011] Optionally, the shaft of the servo motor extends into the tank cover and is in gear engagement with the end of the reciprocating screw rod.

[0012] Optionally, a vertical pressure relief pipe is connected to the top of the tank cover, and a pressure gauge is mounted on the top of the pressure relief pipe.

[0013] Optionally, a piston is slidably mounted in the pressure relief pipe, the piston is connected to the top of the pressure relief pipe by a spring, and a sleeve is connected to the top side of the pressure relief pipe by a return pipe, the sleeve is fixed to the air inlet pipe and communicates with the inside of the air inlet pipe.

[0014] Optionally, a first one-way air valve is mounted on the top of the sleeve, the bottom side of the sleeve communicates with the return pipe, and a second one-way air valve is mounted in the return pipe.

[0015] Compared with the prior art, the present application has at least the following advantages:

[0016] In the above scheme, thanks to the cooperation of the air inlet pipe, the air outlet pipe, the shunt disc and the shunt pipe, the heat energy in the waste heat gas of the central air conditioner can be transferred to the water stored in the heat energy recovery tank through the shunt pipe, achieving heat energy recovery and utilization.

[0017] In the above scheme, thanks to the cooperation of the pressure relief pipe, the sleeve and the return pipe, when the pressure in the heat energy recovery tank is too high, the piston can be lifted to automatically release pressure, and the excess heat steam can also be introduced into the air inlet pipe through the return pipe for secondary heat recovery to a certain extent, reducing the heat loss caused by pressure relief.

[0018] In summary, the device has an automatic cleaning function, can automatically clean and maintain without stopping, helps to ensure heat energy recovery, has an automatic pressure relief function, and can recover part of the heat loss caused by pressure relief, and has high overall recovery efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present application and, together with the specification, further serve to explain the principles of the present application and enable a person skilled in the relevant art to implement and use the present application.

[0020] Figure 1 Figure 1 is a structural schematic diagram of a central air-conditioning heat energy recovery device;

[0021] Figure 2 Figure 2 is a structural schematic diagram of an internal structure of a central air-conditioning heat energy recovery device;

[0022] Figure 3 Figure 3 is a structural schematic diagram of a shunt pipe in a central air-conditioning heat energy recovery device;

[0023] Figure 4 Figure 4 is a structural schematic diagram of a pressure relief pipe in a central air-conditioning heat energy recovery device.

[0024] [Reference signs]

[0025] 1, heat energy recovery tank; 101, tank cover; 2, air inlet pipe; 3, air outlet pipe; 4, drain pipe; 5, shunt disc; 6, shunt pipe; 7, cleaning disc; 701, sliding block; 8, reciprocating screw; 9, servo motor; 10, pressure relief pipe; 1001, piston; 1002, pressure gauge; 11, sleeve; 1101, first one-way air valve; 12, return pipe; 1201, second one-way air valve.

[0026] As shown in the drawings, in order to clearly realize the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application in the specific structure, device and environment, and those skilled in the art can adjust or modify these devices and environment according to specific needs. DETAILED DESCRIPTION

[0027] The central air-conditioning heat energy recovery device provided by the present application will be described in detail below in combination with the drawings and specific embodiments. It should be noted that, in order to make the embodiments more detailed, the following embodiments are the best, preferred embodiments, and other alternative ways can also be used by those skilled in the art to implement some known technologies; and the drawings are only used to more specifically describe the embodiments, and are not intended to specifically limit the present application.

[0028] It should be noted that in the specification, "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like indicate that the embodiments described can include specific features, structures or characteristics, but not necessarily every embodiment includes the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in combination with an embodiment, it should be within the knowledge of those skilled in the art to realize this feature, structure or characteristic in combination with other embodiments (whether or not explicitly described).

[0029] Generally, terms can be understood to be contextually defined by their use. For example, the term "one or more" as used herein, can be used in the singular sense to describe any feature, structure, or characteristic, or can be used in the plural sense to describe a combination of features, structures, or characteristics, depending at least in part on the context in which the term is used. Additionally, the term "based on" can be understood as not necessarily requiring exclusive consideration to a set of factors, but instead, can allow for the existence of other factors not necessarily explicitly described, depending at least in part on the context in which the term is used.

[0030] It will be understood that the terms "on", "over", and "above" in the present application should be interpreted in the broadest possible way such that "on" not only means "directly on" but also includes the meaning of being "on" with intervening features or layers therebetween, and "over" or "above" not only means "over" or "above" but also can include the meaning of being "over" or "above" without intervening features or layers therebetween.

[0031] In addition, spatially relative terms, such as "under", "below", "lower", "over", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein can similarly be interpreted accordingly.

[0032] As Figure 1 , Figure 2 With Figure 3 As shown in the utility model discloses an embodiment provides a central air conditioning heat energy recovery device, including heat energy recovery tank 1, the top of heat energy recovery tank 1 is fixed with tank cover 101, the tank cover 101 is fixed with air inlet pipe 2 and air outlet pipe 3, and the bottom of heat energy recovery tank 1 is installed with drain pipe 4.

[0033] Wherein, the lower end of air inlet pipe 2 and air outlet pipe 3 extends into heat energy recovery tank 1, and is connected with shunt disc 5, a plurality of parallel shunt pipes 6 are evenly distributed and installed between two shunt discs 5, a plurality of shunt pipes 6 are commonly sleeved with cleaning disc 7, and the surface of a plurality of shunt pipes 6 can be cleaned by reciprocating sliding cleaning disc 7, to ensure the heat conduction effect of shunt pipe 6.

[0034] Meanwhile, the top of the cleaning disc 7 is fixed with a sliding block 701 which is slidingly installed on the lower surface of the inner top wall of the box cover 101, and a reciprocating lead screw 8 is rotatably installed on the inner top of the box cover 101, the reciprocating lead screw 8 penetrates the middle part of the sliding block 701, and the end of the reciprocating lead screw 8 is matched with a servo motor 9.

[0035] As shown in Figure 2 With Figure 4 As shown in the drawings, the top of the box cover 101 is connected with a vertical pressure relief pipe 10, the top of the pressure relief pipe 10 is installed with a pressure gauge 1002, wherein the pressure relief pipe 10 is slidingly installed with a piston 1001, the piston 1001 is connected with the inner top of the pressure relief pipe 10 through a spring, the top side of the pressure relief pipe 10 is connected with a sleeve 11 through a return pipe 12, the sleeve 11 is fixed on the air inlet pipe 2 and communicates with the inside of the air inlet pipe 2, so that when the pressure relief pipe 10 is relieved, the hot steam can be introduced into the air inlet pipe 2 to be discharged, and in the discharging process, the effect of heat recovery is achieved.

[0036] Meanwhile, in order to avoid the steam introduced into the air inlet pipe 2 from flowing back and the original exhaust gas in the air inlet pipe 2 from entering the pressure relief pipe 10, a first one-way air valve 1101 is installed on the top of the sleeve 11, the bottom side of the sleeve 11 communicates with the return pipe 12, and a second one-way air valve 1201 is installed in the return pipe 12.

[0037] The working principle of the heat energy recovery device for central air conditioner is that when in use, the heat energy in the waste heat gas of the central air conditioner is transmitted to the water stored in the heat energy recovery box 1 through the channels composed of the air inlet pipe 2, the shunt disc 5 and the air outlet pipe 3, and then the heat energy is recovered and utilized.

[0038] Meanwhile, the servo motor 9 can be started to drive the reciprocating lead screw 8 to rotate, and then the sliding block 701 drives the cleaning disc 7 to reciprocate on the surface of the shunt pipe 6, so that the effect of automatic cleaning and maintenance is achieved, and the machine does not need to be stopped and disassembled for manual cleaning, and the use effect is good.

[0039] In addition, when the air pressure in the heat energy recovery box 1 is too large, the steam in the heat energy recovery box 1 can be automatically relieved through the jacking piston 1001, and the excessive hot steam can be introduced into the air inlet pipe 2 through the return pipe 12 to be recycled to a certain extent, so as to reduce the heat loss caused by pressure relief.

[0040] In summary, the device has an automatic cleaning function, can be in the state of automatic cleaning nursing without stopping, is conducive to guaranteeing the heat recovery effect, and also has an automatic pressure relief function, and can recover a part of the heat loss during pressure relief, and the overall recovery efficiency is high.

[0041] The utility model covers any alternative, modification, equivalent method and scheme which is made on the essence and range of the utility model. In order to make the public have the thorough understanding of the utility model, the specific details are explained in the following utility model preferred embodiment, and the utility model can be completely understood without the description of these details for the person skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the utility model, the well-known method, process, flow, element and circuit etc. are not explained in detail.

[0042] The above is only the preferred embodiment of the utility model, and it should be pointed out that for the ordinary skilled person in the art, on the premise of not departing from the principle of the utility model, a plurality of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection range of the utility model.

Claims

1. A central air conditioning heat energy recovery device, comprising a heat energy recovery tank (1), the top of the heat energy recovery tank (1) is fixed with a tank cover (101), the tank cover (101) is fixed with an air inlet pipe (2) and an air outlet pipe (3), characterized in that, The lower end of the air inlet pipe (2) and the air outlet pipe (3) extends into the heat energy recovery box (1), and is connected with the flow dividing disc (5), a plurality of flow dividing pipes (6) are uniformly installed between the two flow dividing discs (5), a plurality of the flow dividing pipes (6) are commonly sleeved with the cleaning disc (7), the top of the cleaning disc (7) is fixedly connected with the sliding block (701), the sliding block (701) is slidingly installed on the inner top wall lower surface of the box cover (101), and the reciprocating lead screw (8) is rotatably installed on the inner top of the box cover (101), the reciprocating lead screw (8) penetrates the middle part of the sliding block (701), and the end of the reciprocating lead screw (8) is matched with the servo motor (9).

2. The central air conditioning heat energy recovery device according to claim 1, characterized in that, The bottom of the heat energy recovery box (1) is provided with a drain pipe (4).

3. The central air conditioning heat energy recovery device according to claim 1, characterized in that, The servo motor (9) is fixed to the upper end surface of the box cover (101).

4. The central air conditioning heat energy recovery device according to claim 3, characterized in that, The shaft of the servo motor (9) extends into the box cover (101), and is in gear meshing transmission cooperation with the end of the reciprocating lead screw (8).

5. The central air conditioning heat energy recovery device according to claim 1, wherein, The top of the box cover (101) is connected with the vertical pressure relief pipe (10), and the top of the pressure relief pipe (10) is provided with the pressure gauge (1002).

6. The central air conditioning heat energy recovery device according to claim 5, characterized in that, The piston (1001) is slidingly installed in the pressure relief pipe (10), and the piston (1001) is connected with the inner top of the pressure relief pipe (10) through the spring.

7. The central air conditioning heat energy recovery device according to claim 6, characterized in that, The top side of the pressure relief pipe (10) is connected with the sleeve (11) through the backflow pipe (12), the sleeve (11) is fixed to the air inlet pipe (2) and communicates with the inside of the air inlet pipe (2). The top of the sleeve (11) is provided with the first one-way air valve (1101), the bottom side of the sleeve (11) communicates with the backflow pipe (12), and the second one-way air valve (1201) is installed in the backflow pipe (12).

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