Multi-working-condition variable-air-volume air distributor for ship

Abstract

One side of a box body is connected with an air inlet pipe, the bottom of the box body is provided with an air outlet, a baffle plate corresponding to the air inlet pipe is arranged in the middle of the interior of the box body, a junction box is arranged on one side, horizontally perpendicular to the air inlet pipe, of the box body, and an electric air valve is arranged in the air inlet pipe. A valve rod of the electric air valve penetrates out of the other side of the box body to be connected with an electric actuator arranged in a junction box, the other side of the box body is connected with an electric heater in a penetrating mode, a plurality of overtemperature protection sensors are arranged on the side, corresponding to the electric heater, of the baffle plate, and the overtemperature of the overtemperature protection sensors increases gradually. And the plurality of overtemperature protection sensors are connected into the junction box through mica high-temperature wires and are connected with the VAV wire controller. The device is compact in structure, convenient to install and use and capable of being used under different working conditions such as air volume adjustment and different temperature protection.

Description

Technical Field

[0001] This utility model relates to an air distributor, specifically a multi-condition variable air volume air distributor for ships. Background Technology

[0002] Variable air volume (VAV) air conditioning systems are becoming increasingly widely used on ships and will be the future trend. They meet the overall requirements of energy conservation. VAV air conditioning systems are equipped with VAV terminals. Conventional VAV terminals for ships have a relatively simple structure and do not have the function of adjusting air volume. They also require connection to air ducts or air distributors, making the structure more complex, requiring more space, and complicated to install and externally wire. Installation and use are time-consuming and labor-intensive. In addition, different inlet and outlet air temperature requirements under different operating conditions cannot be safely controlled within different temperature protection ranges, making them unsuitable for use under various operating conditions. Summary of the Invention

[0003] This utility model provides a shipboard multi-condition variable air volume distributor that is compact in structure, easy to install and use, and can take into account different working conditions such as air volume adjustment and different temperature protection.

[0004] The technical solution adopted by this utility model is as follows: a multi-condition variable air volume distributor for ships, including a housing, an air inlet pipe connected to one side of the housing, an air outlet opened at the bottom of the housing, and a baffle plate set in the middle of the housing corresponding to the air inlet pipe. The characteristic feature is that a junction box is set on one side of the housing perpendicular to the air inlet pipe, an electric air valve is installed inside the air inlet pipe, the valve stem of the electric air valve passes through the other side of the housing and connects to an electric actuator placed in the junction box, the electric actuator is connected to a controller in the junction box, an electric heater is connected to the other side of the housing, the electric heater is wired to the junction box and connected to the controller, and multiple over-temperature protection sensors are set on the side of the baffle plate corresponding to the electric heater, the over-temperature of the multiple over-temperature protection sensors increases progressively, and the multiple over-temperature protection sensors are connected to a VAV wired controller in the junction box via a mica high-temperature wire, the VAV wired controller is connected to the controller.

[0005] The air outlet is connected to a diffuser, and an air outlet temperature sensor is installed inside the diffuser.

[0006] The sides and / or top of the enclosure are provided with lifting lugs.

[0007] The air inlet pipe wall is reinforced with ribs.

[0008] The box body and the top and bottom of the baffle are all lined with sound-absorbing rock wool.

[0009] Rubber strips are attached around the air regulating plate of the electric air valve.

[0010] An air volume sensor and an air intake temperature sensor are installed inside the air intake duct.

[0011] An electric heating protection cover is installed inside the junction box corresponding to the electric heating wiring position.

[0012] The junction box is an explosion-proof junction box.

[0013] The beneficial effects of this utility model are:

[0014] 1. The air inlet pipe is reinforced with ribs, which can improve the structural strength of the air inlet pipe, meet the strength requirements for internal electric air valve and high-speed air intake, and ensure the safe and stable use of the air inlet pipe;

[0015] 2. An electric actuator is used to control the valve stem of the electric air valve to drive the air regulating plate to rotate, thereby controlling the air volume at the air inlet and meeting the air distribution requirements of variable air volume. The electric air valve does not occupy external space, and the electric actuator is installed in the junction box, which is conducive to the use of compact space on the ship and convenient electrical wiring and protection.

[0016] 3. Rubber strips are affixed around the air regulating plate of the electric air valve. These rubber strips are wear-resistant, resistant to various organic solvents, and have stable properties, making them suitable for use in marine environments. The enclosure serves as a static pressure chamber, with sound-absorbing rock wool lining the interior. Rock wool possesses excellent thermal insulation, fire resistance, sound insulation, and chemical stability, contributing to the static pressure silencing of the variable air volume distributor.

[0017] 4. The enclosure features multi-position lifting lugs for easy height adjustment, accommodating the position of the air distributor for convenient installation and use; the junction box is located on the side of the enclosure, housing the controller and other electrical components, eliminating the need for on-site wiring and connections, resulting in a beautiful, safe, and easy-to-install overall structure.

[0018] 5. An electric heater is located on the other side. When the diffuser outlet air temperature is low, the electric heater is activated to heat the air distribution. At the same time, it is connected to the junction box for control and an electric heater protection cover is added to avoid affecting the electrical components inside the junction box. The electric heater control and use are safe.

[0019] 6. The over-temperature protection sensors are connected to the VAV wired controller in the junction box via a mica high-temperature wire. The controller selects the over-temperature protection sensor to use according to the operating environment, monitors the air temperature at the downward-facing air outlet, and controls the opening degree of the electric heater and electric air valve to meet the air distribution requirements within the set safe temperature range. It is also suitable for air distribution under different working conditions. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 for Figure 1 AA view.

[0022] In the diagram: 1. Housing; 2. Sound-absorbing rock wool; 3. Air inlet pipe; 4. Electric air valve; 5. Valve stem; 6. Electric actuator; 7. Air volume sensor; 8. Air inlet temperature sensor; 9. Junction box; 10. Controller; 11. Baffle plate; 12. Air outlet; 13. Diffuser; 14. Air outlet temperature sensor; 15. Over-temperature protection sensor; 16. Mica high-temperature wire; 17. VAV wired controller; 18. Electric heater; 19. Electric heating protection cover; 20. Lifting lug. Detailed Implementation

[0023] The following explanation, in conjunction with the accompanying drawings, will provide further details.

[0024] Figure 1 , 2 As shown: A multi-condition variable air volume (VAV) air distributor for ships includes a housing 1, sound-absorbing rock wool 2, an air inlet duct 3, an electric air valve 4, a valve stem 5, an electric actuator 6, an air volume sensor 7, an air inlet temperature sensor 8, a junction box 9, a controller 10, a baffle 11, a diffuser 13, an air outlet temperature sensor 14, an over-temperature protection sensor 15, a mica high-temperature wire 16, a VAV wired controller 17, an electric heater 18, an electric heating protection cover 19, and lifting lugs 20. The air inlet duct 3 is connected to one side of the housing 1. A baffle 11 is installed in the middle of the housing 1 corresponding to the air inlet duct. Sound-absorbing rock wool 2 is pasted inside the housing and on the top and bottom of the baffle. A junction box 9 is installed on the side of the housing 1 that is horizontally perpendicular to the air inlet duct. The junction box 9 contains the controller 10, the VAV wired controller 17, and the electric actuator 6. The VAV wired controller 17 and the electric actuator 6 are connected to the controller 10. An air volume sensor 7, an air intake temperature sensor 8, and an electric air valve 4 are installed inside the air inlet duct 3. The valve stem 5 of the electric air valve 4 passes through the junction box 9 on the other side of the housing and is connected to an electric actuator 6. An electric heater 18 passes through the other side of the housing 1. The electric heater 18 is wired to the junction box and connected to the controller and is covered by an electric heating protection cover 19. Multiple over-temperature protection sensors 15 are installed on the side of the baffle plate 11 corresponding to the electric heater. The over-temperature temperature of the multiple over-temperature protection sensors increases progressively. The multiple over-temperature protection sensors are connected to the junction box via a mica high-temperature wire 16 and connected to a VAV wired controller 17. The VAV wired controller 17 is connected to the controller 10.

[0025] An air outlet 12 is provided at the bottom of the housing 1. An air outlet temperature sensor 14 is installed inside the air outlet 12, and a diffuser 13 is connected to the outside of the air outlet.

[0026] In this embodiment, the air volume sensor 7, the inlet air temperature sensor 8, and the outlet air temperature sensor 14 are all connected to the controller 10.

[0027] In this embodiment, lifting lugs 20 are provided on the sides and / or top of the housing.

[0028] Based on this embodiment, the air inlet duct can adopt a ribbed reinforcement structure.

[0029] Based on this embodiment, rubber strips can be attached around the air regulating plate of the electric air valve.

[0030] Based on this embodiment, the junction box is preferably an explosion-proof junction box.

Claims

1. A multi-condition variable air volume air distributor for ships, comprising a housing, an air inlet duct connected to one side of the housing, an air outlet opened at the bottom of the housing, and a baffle plate arranged in the middle of the housing corresponding to the air inlet duct, characterized in that: A junction box is installed on one side of the housing, horizontally perpendicular to the air inlet pipe. An electric air valve is installed inside the air inlet pipe. The valve stem of the electric air valve extends out of the housing and connects to an electric actuator located in the junction box. The electric actuator is connected to a controller inside the junction box. An electric heater is connected to the other side of the housing. The electric heater is wired to the junction box and connected to the controller. Multiple over-temperature protection sensors are installed on the side of the baffle plate corresponding to the electric heater. The over-temperature of the multiple over-temperature protection sensors increases progressively. The multiple over-temperature protection sensors are connected to a VAV wired controller inside the junction box via a mica high-temperature wire. The VAV wired controller is connected to the controller.

2. The shipboard multi-condition variable air volume air distributor according to claim 1, characterized in that: The air outlet is connected to a diffuser, and an air outlet temperature sensor is installed inside the diffuser.

3. The shipboard multi-condition variable air volume distributor according to claim 1, characterized in that: The sides and / or top of the enclosure are provided with lifting lugs.

4. The shipboard multi-condition variable air volume air distributor according to claim 1, characterized in that: The air inlet pipe wall is reinforced with ribs.

5. The shipboard multi-condition variable air volume air distributor according to claim 1, characterized in that: The box body and the top and bottom of the baffle are all lined with sound-absorbing rock wool.

6. The shipboard multi-condition variable air volume air distributor according to claim 1, characterized in that: Rubber strips are attached around the air regulating plate of the electric air valve.

7. The shipboard multi-condition variable air volume air distributor according to claim 1, characterized in that: An air volume sensor and an air intake temperature sensor are installed inside the air intake duct.

8. The shipboard multi-condition variable air volume air distributor according to claim 1, characterized in that: An electric heating protection cover is installed inside the junction box corresponding to the electric heating wiring position.

9. The shipboard multi-condition variable air volume air distributor according to claim 1 or 8, characterized in that: The junction box is an explosion-proof junction box.

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