Passive thermosyphon beam air conditioner

Abstract

The utility model discloses a passive type thermosyphon beam air conditioner, and relates to the technical field of thermosyphon beam air conditioners, the passive type thermosyphon beam air conditioner is composed of an equipment shell, a fin type heat exchanger, a cross flow fan, a condensate water disc, a condensate water connector, a hoisting support, a wall hanging support and a chilled water connector, the cross flow fan is installed at the top end in the equipment shell and tightly attached to a top plate and a back plate of the shell, heat preservation cotton is attached to the periphery of the outer side of the condensate water disc, the left side of the condensate water disc is close to the front face of the equipment shell, and the bottom of the condensate water disc is close to the bottom face of the equipment shell. Compared with a traditional active chilled beam system, indoor temperature and ventilation control is decoupled, independent control is achieved, a thermosyphon beam air conditioner operates in a passive mode, many electrified assemblies are reduced, and the minimum maintenance cost in the later period is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermosiphon beam air conditioners, in particular to a passive thermosiphon beam air conditioner. Background Art

[0002] The main function of the central air conditioning system is to change the room temperature. Common ones include top-supply active chilled beam system and passive thermosyphon beam air conditioning. Top-supply active chilled beam is a combination of primary air system and air and water heat exchange system. It uses proprietary nozzle technology to induce room air to enter the chilled beam and exchange heat with the surface cooler. The air after heat exchange is mixed with primary air and finally sent into the room through the strip air outlet.

[0003] Passive thermosiphon beam air conditioning is an air conditioning device that uses the principle of natural convection to provide cooling and heating. It mainly relies on the heat exchange between the water in its internal heat exchanger and the air outside the pipe to cause changes in air density, thereby triggering natural convection of the air and generating natural air supply to achieve indoor temperature regulation.

[0004] Although both passive thermosiphon beam air conditioning and top-air active chilled beam system can change the room temperature, the active chilled beam system has a small scope of application, generates loud noise during operation, and has high cost of use.

[0005] In actual equipment demand, many domestic scenarios do not have a mandatory demand for fresh air, which has led to a significant reduction in the applicable scenarios of active chilled beam equipment. At the same time, the operation generates a lot of noise and the cost of use is high. For this reason, a passive thermosiphon beam air conditioner is proposed. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] In view of the deficiencies in the prior art, the utility model provides a passive thermosiphon beam air conditioner to solve the technical problems of the small application range of the active cold beam system, the large noise generated during operation and the high cost of use.

[0008] (II) Technical solution

[0009] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] A passive thermosyphon beam air conditioner consists of an equipment casing, a fin heat exchanger, a crossflow fan, a condensate pan, a condensate interface, a hanging bracket, a wall bracket, and a chilled water interface, wherein the hanging bracket and the wall bracket are close to the equipment casing, the crossflow fan is installed at the top of the inside of the equipment casing and close to the top plate and back plate of the casing, and the outside of the condensate pan is covered with thermal insulation cotton all around, with the left side close to the front of the equipment casing and the bottom close to the bottom of the equipment casing.

[0011] Preferably: the condensate water interface and the condensate water tray are welded and connected and pass through the bottom of the device housing, and the rubber ring is located between the condensate water interface and the bottom of the device housing for protection.

[0012] Preferably, the fin heat exchanger is fixed between the left and right sides of the equipment housing through a connecting plate and is located directly above the condensate water tray.

[0013] Preferably, the two chilled water interfaces on the fin heat exchanger penetrate the left side plate of the equipment housing.

[0014] Preferably: There is a rubber ring protection between the two chilled water interfaces and the left side plate of the equipment housing.

[0015] (III) Beneficial effects

[0016] 1. The aerodynamic characteristics such as the thermosiphon principle and the wall effect are adopted to improve the heat exchange rate and energy efficiency of the air conditioner and reduce energy consumption.

[0017] 2. Compared with the traditional active chilled beam system, the indoor temperature and ventilation control are decoupled to achieve independent control. The thermosiphon beam air conditioner operates in passive mode, reducing many electrical components and minimizing maintenance costs in the later stage.

[0018] 3. There are no special requirements for the application environment and equipment, so it can be applied to various scenarios. It is not only suitable for the construction of new building HVAC systems but also for the energy efficiency transformation of traditional systems. Different applications can be taken into consideration and designed according to specific circumstances.

[0019] 4. Switch between passive mode and enhanced mode to meet different working conditions and load requirements and achieve optimal energy configuration. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0021] Figure 1 It is an axonometric view of the utility model;

[0022] Figure 2 It is a cross-sectional view of the utility model;

[0023] Figure 3 It is the three views of the equipment of the utility model;

[0024] Figure 4 This is a schematic diagram of the utility model integrated with furniture for installation;

[0025] Figure 5 This is a schematic diagram of the utility model being installed as a partition wall.

[0026] Legend: 1. Fin heat exchanger; 2. Cross-flow fan; 3. Condensate tray; 4. Rubber ring; 5. Condensate interface; 7. Lifting bracket; 8. Wall-mounted bracket; 9. Chilled water interface; 10. Equipment casing; 101. Wall-mounted thermosiphon beam air conditioner body; 102. Hot air inlet grille; 103. Cold air outlet grille; 104. Cold air insulation pipe; 105. Furniture cabinet; 106. Insulation pipe. DETAILED DESCRIPTION

[0027] The embodiment of the present application provides a passive thermosiphon beam air conditioner, which effectively solves the technical problems that the active cold beam system has a small application range, generates high noise during operation, and has high cost for use.

[0028] Example 1

[0029] The overall idea of ​​the technical solution in the embodiment of the present application is as follows:

[0030] like Figure 1-3 As shown, in view of the problems existing in the prior art, the utility model provides a passive thermosyphon beam air conditioner, which is composed of an equipment housing 10, a fin heat exchanger 1, a cross-flow fan 2, a condensate water tray 3, a condensate water interface 5, a hanging bracket 7, a wall bracket 8, and a chilled water interface 9;

[0031] The device housing 10 is used to install the components of the internal mechanism of the device and form a cavity;

[0032] The fin heat exchanger 1 is used to exchange heat with the air and is the power source for passive air convection:

[0033] The cross flow fan 2 is used to initialize or accelerate the formation of air flow circulation during the startup phase, increase the cooling capacity and control the air flow, and is the main driving force for indoor air circulation and heating;

[0034] The condensate pan 3 is used to collect the condensate generated by the fin heat exchanger 1 during the heat exchange process;

[0035] The rubber ring 4 is used to protect the condensed water interface 5 and the chilled water interface 9 to prevent them from being damaged by knocks;

[0036] The condensate water interface 5 is connected to the condensate water drainage pipeline to form a condensate water drainage pipeline;

[0037] The hanging bracket 7 and the wall bracket 8 are used for engineering installation of the equipment;

[0038] The chilled water interface 9 is used to connect the chilled water pipeline to form the inflow and outflow of chilled water, so as to promote the circulation of the heat exchange medium in the fin heat exchanger 1;

[0039] The hanging bracket 7 and the wall bracket 8 are close to the shell, the cross-flow fan 2 is installed at the top of the shell, close to the top plate and back plate of the shell, and the condensate pan 3 is covered with insulation cotton on all sides, with the left side close to the front of the shell and the bottom close to the bottom of the shell. The condensate interface 5 is welded to the condensate pan 3 and penetrates the bottom of the shell. The condensate interface 5 and the bottom of the shell are protected by a rubber ring 4. The fin heat exchanger 1 is fixed between the left and right sides of the shell through a connecting plate and is located directly above the condensate pan 3. The two chilled water interfaces 9 on the fin heat exchanger 1 penetrate the left side plate of the shell, and the two chilled water interfaces 9 and the left side plate of the shell are protected by a rubber ring 4.

[0040] Thermosyphon beam air conditioners can operate in two different modes, namely passive mode and enhanced mode;

[0041] The working process of the passive mode is: the cross-flow fan 2 is turned off, the air in the hot air layer is passively cooled by passing through the heat exchanger, the density of the cold air increases, and under the effect of the wall-adhering effect and the gravity of the high-density cold air, it naturally falls along the vertical air duct and sinks to the floor along the wall. After the cold air exchanges heat with the indoor heat load, the hotter air rises to the ceiling height again and enters the machine for heat exchange. As long as the internal heat load exists, the thermosiphon cycle will continue. Therefore, in this mode, the thermosiphon effect is the dominant role of the indoor air circulation in cooling, and the entire air conditioning process can be completed without an external driving force (fan);

[0042] In practical applications, relying solely on the passive mode has certain limitations:

[0043] 1. Its cooling capacity is relatively low, making its manufacturing and installation costs relatively high;

[0044] 2. Since air circulation only depends on the temperature difference between chilled water and the room, indoor temperature control is difficult to achieve.

[0045] Therefore, the passive mode is only suitable for spaces with a small and relatively constant cooling load. Therefore, the enhanced mode is newly designed based on the passive mode of the equipment.

[0046] The workflow of the enhanced mode is: the cross flow fan 2 is turned on, and at this time the cross flow fan 2 is the main driving force for indoor air circulation. Driven by the cross flow fan 2, the hot air is cooled after exchanging heat with the heat exchanger, and under the gravity of the high-density cold air, the air continues to sink along the wall to the floor; similar to the passive mode, the cold air diffuses at the ground level, encounters the heat source, forms a heat flow, and finally reaches the warm air layer and completes the circulation loop;

[0047] The aerodynamic characteristics such as the thermosiphon principle and the wall effect are adopted to improve the heat exchange rate and energy efficiency of the air conditioner and reduce energy consumption;

[0048] Compared with the traditional active chilled beam system, the indoor temperature and ventilation control are decoupled to achieve independent control. The thermosyphon beam air conditioner operates in passive mode, reducing many electrical components and minimizing maintenance costs in the later stage.

[0049] There are no special requirements for the application environment and equipment, so it can be applied to various scenarios, not only for the construction of new building HVAC systems, but also for the energy efficiency transformation of traditional systems. Different applications can be considered and designed according to specific circumstances;

[0050] Switch between passive mode and enhanced mode to meet different working conditions and load requirements and achieve optimal energy configuration.

[0051] Example 2

[0052] Based on Example 1, Figure 4 As shown, when integrated with furniture: a wall-mounted thermosiphon beam air conditioner body 101 is installed in the upper left corner of the room, a hot air inlet grille 102 and a cold air outlet grille 103 similar to the style of the furniture can be installed on the outside of the body, and the required furniture cabinet 105 can be designed between the inlet grille and the outlet grille, and the cold air insulation duct 104 is close to the back and bottom of the home.

[0053] Example 2

[0054] Based on Example 1, Figure 5 As shown, when installed as a partition wall: the wall-mounted thermosyphon beam air conditioner body 101 is hoisted on the top of the house, a hot air inlet grille 102 is installed at the hot air inlet, a vertical insulation pipe 106 is tightly fitted with the air outlet of the equipment, the outer side of the insulation pipe 106 is processed with traditional tooling, two air outlets are opened on both sides of the bottom of the insulation pipe 106 to install cold air outlet grilles 103, and the treated cold air is transported to the rooms on both sides through the cold air outlet grilles 103 to circulate the indoor air;

[0055] These two installation methods bring the thermal siphon principle and the airflow wall effect to the extreme without occupying the actual use area and function of the house. They can be adjusted according to the use environment to achieve the purpose of drainage and increasing cooling capacity, which is more energy-saving.

[0056] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A passive thermosyphon beam air conditioner, characterized in that: The passive thermosyphon beam air conditioner is composed of an equipment housing (10), a fin heat exchanger (1), a cross-flow fan (2), a condensate water tray (3), a condensate water interface (5), a hanging bracket (7), a wall-mounted bracket (8), and a chilled water interface (9); Among them, the hanging bracket (7) and the wall bracket (8) are close to the equipment casing (10), the cross-flow fan (2) is installed at the top of the inside of the equipment casing (10) and close to the top plate and the back plate of the casing, and the outside of the condensate tray (3) is covered with thermal insulation cotton all around, with the left side close to the front of the equipment casing (10) and the bottom close to the bottom of the equipment casing (10).

2. A passive thermosiphon beam air conditioner as claimed in claim 1, characterized in that: The condensate water interface (5) and the condensate water tray (3) are welded and connected, and pass through the bottom of the equipment housing (10); the rubber ring (4) is located between the condensate water interface (5) and the bottom of the equipment housing (10) for protection.

3. A passive thermosiphon beam air conditioner as claimed in claim 2, characterized in that: The fin heat exchanger (1) is fixed between the left and right sides of the equipment housing (10) via a connecting plate and is located directly above the condensate tray (3).

4. A passive thermosiphon beam air conditioner as claimed in claim 1, characterized in that: The two chilled water interfaces (9) on the fin heat exchanger (1) penetrate the left side plate of the equipment housing (10).

5. A passive thermosiphon beam air conditioner as claimed in claim 1, characterized in that: A rubber ring (4) is provided between the two chilled water interfaces (9) and the left side plate of the equipment housing (10) for protection.

Images