Building heating and ventilation energy-saving equipment

By introducing a return water chamber and heat exchange pipes into the building's HVAC equipment to utilize the waste heat from the boiler return water to heat tap water, the problem of insufficient waste heat utilization in existing equipment is solved, achieving an energy-saving and structurally simple heating solution.

CN223663798UActive Publication Date: 2025-12-12WUHAN JIANSHE ENERGY SAVING INSPECTION & TESTING CONSULTING CENT
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Patent Information

Application Number
CN202423073267.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-12-12
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

Existing building heating and ventilation systems use external energy to heat water through heating pipes during the heating process, resulting in poor energy-saving effects and insufficient utilization of waste heat.

Method used

The system adopts a return water tank design, which uses the waste heat of the boiler return water to heat the tap water through heat exchange tubes. Combined with a detachable filter component to filter impurities, the system increases the water temperature and reduces gas consumption.

Benefits of technology

It achieves energy-saving effects, reduces boiler heating gas consumption, increases tap water temperature, has a simple structure, and is suitable for most gas-fired boilers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of building heating and ventilation, and discloses a building heating and ventilation energy-saving device which comprises a water return bin, a water inlet pipe, a filtering assembly, a water outlet pipe, a warm water inlet and a warm water outlet, the water inlet pipe is arranged at one end of the water return bin, the filtering assembly is arranged outside the water inlet pipe, and the water outlet pipe is arranged at the other end of the water return bin. The warm water inlet is formed in the top of the water return bin, the warm water outlet is formed in the other end of the top of the water return bin, the water return bin comprises a bin body, a supporting frame and a heat exchange pipe, the supporting frame is fixedly connected to the interior of the bin body, and the heat exchange pipe is installed at the top of the supporting frame. According to the building heating and ventilation energy-saving equipment, return water of the boiler enters the water return bin, waste heat of the return water of the boiler is used for conducting heat exchange treatment on water entering the heat exchange pipe, the temperature of tap water is increased, the temperature of the tap water entering the boiler is increased, consumption of fuel gas heated by the boiler is reduced, and the energy-saving effect is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to building heating and ventilation technical field, concretely is a building heating and ventilation energy -conserving equipment. BACKGROUND

[0002] The floor heating in building heating and ventilation is a kind of efficient heating mode, it is evenly transmitted to indoor heat through the ground radiation mode, gives the comfortable feeling of the feet warm head cool, and the floor heating is called ground radiation heating, its principle is to take the whole ground as radiator, the whole ground is heated evenly by the heat medium (such as water or electricity) in floor radiation layer, then the heat is radiated upwards by the law of ground itself, and the heat is conducted from bottom to top, to achieve the purpose of heating, wherein, water floor heating is the most common heating mode, it is heated by water pipe laid on ground, and hot water is sent to each space for heating by gas water heater or air energy host and other equipment.

[0003] According to the authorized announcement number CN212157373U discloses a kind of building heating and ventilation energy -conserving equipment, including base, the inside of the base is provided with the board, the upper end of the board is respectively provided with distribution box and high-pressure circulating water pump, the inside of the base is close to the lower end of the board and is provided with fan, the upper end of the fan is provided with baffle, the front end of the base is provided with protective door, the side end of the protective door is provided with control panel, the upper end of the base is provided with water pool, the inside of the water pool is provided with heating pipe, above the utility model discloses a kind of building heating and ventilation energy -conserving equipment, by being provided with water pool, heating pipe and high-pressure circulating water pump, hot water in water pool can be heated using heating pipe, and the water in water pool can be circulated for heating by cooperating high-pressure circulating water pump, can be energy saving and environment friendly, by being provided with base and fan, high-pressure circulating water pump can be installed in the inside of base, can block the noise of high-pressure circulating water pump when working.

[0004] But the above device still has the following problems, hot water in water pool can be heated by using heating pipe, but the use of heating pipe still uses external energy as supply to heat water circulation, so that the energy saving effect is not good, and the waste heat utilization effect of water is not good. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of building heating and ventilation energy -conserving equipment to solve the problems in the above background technology.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a building heating energy -saving equipment, including backwater bin, water inlet pipe, filter component, water outlet pipe, warm water import and warm water export, the water inlet pipe sets up in one end of backwater bin, the filter component sets up in the outside of water inlet pipe, the water outlet pipe sets up in the other end of backwater bin, the warm water import is installed in the top of backwater bin, the warm water export is installed in the other end of backwater bin top.

[0007] The backwater bin includes a bin body, a support frame and a heat exchange pipe, the support frame is fixedly connected to the inside of the bin body, the heat exchange pipe is installed on the top of the support frame, one end of the heat exchange pipe is connected with the flange of the water inlet pipe, the other end of the heat exchange pipe is connected with the flange of the water outlet pipe, the backwater of the boiler enters the inside of the backwater bin, the waste heat of the boiler backwater is utilized to heat treat the water entering the heat exchange pipe, the temperature of the tap water is improved, the temperature entering the boiler is improved, the gas consumption of the boiler heating is reduced, and the energy saving effect is realized.

[0008] Preferably, the heat exchange pipe is made of copper pipe material, and is externally provided with fins to increase the heat exchange contact area and facilitate heat exchange work.

[0009] Preferably, the filter component includes a mounting frame, a filter core, a mounting plate and a fixing bolt, the mounting frame is fixedly connected to the outside of the water inlet pipe, the filter core is installed in the inside of the mounting frame, the mounting plate is fixedly connected to the top of the filter core, and the fixing bolt is screwed with the mounting frame through the mounting plate.

[0010] Preferably, the filter core includes a mounting frame, a clamping plate, a filter core and a mounting bolt, the mounting frame is fixedly connected to the bottom of the mounting plate, the clamping plate is clamped and connected to the inside of the mounting frame, the filter core is fixedly connected to the inside of the clamping plate, and the mounting bolt is screwed with the clamping plate, the filter core is installed in the mounting frame in a detachable manner, impurities in the tap water are filtered, and the impurities accumulated in the heat exchange pipe are reduced to affect the heat exchange effect.

[0011] Preferably, the inner wall of the bin body is provided with a heat preservation layer to preserve the waste heat of the boiler backwater and reduce heat loss.

[0012] Preferably, the top of the mounting plate is provided with a handle to facilitate replacement of the filter core through the mounting plate.

[0013] Preferably, the heat exchange pipe is designed as a hairpin pipe to increase the length in the bin body and facilitate better heat exchange between the backwater waste heat and the tap water.

[0014] Preferably, the number of the support frames is two, which are respectively arranged at the two ends of the bottom of the heat exchange pipe to ensure stable support of the heat exchange pipe.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This building HVAC energy-saving equipment uses the return water from the boiler to enter the return water chamber. It utilizes the waste heat of the boiler return water to treat the water entering the heat exchange tubes, thereby increasing the temperature of the tap water and raising the temperature of the water entering the boiler. This reduces the gas consumption for boiler heating and achieves energy-saving effects.

[0017] 2. This building HVAC energy-saving equipment uses a removable filter element installed in the mounting frame to facilitate the filtration of impurities in tap water, reducing the accumulation of impurities in the heat exchange tubes and affecting the heat exchange effect.

[0018] 3. This building HVAC energy-saving equipment has a simple structure, is easy to install, and is suitable for use with most gas boilers on the market, making it easy to promote the use of the equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the water return chamber of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the filter assembly of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the filter element of this utility model.

[0023] In the diagram: 1. Return water chamber; 2. Inlet pipe; 3. Filter assembly; 4. Outlet pipe; 5. Hot water inlet; 6. Hot water outlet; 101. Chamber body; 102. Support frame; 103. Heat exchange tube; 301. Mounting bracket; 302. Filter element; 303. Mounting plate; 304. Fixing bolt; 311. Mounting frame; 312. Snap-fit ​​plate; 313. Filter element; 314. Mounting bolt. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-4This utility model provides a technical solution: a building heating, ventilation and air conditioning energy-saving device, including a return water tank 1, an inlet pipe 2, a filter assembly 3, an outlet pipe 4, a warm water inlet 5 and a warm water outlet 6. The inlet pipe 2 is located at one end of the return water tank 1, the filter assembly 3 is located outside the inlet pipe 2, the outlet pipe 4 is located at the other end of the return water tank 1, the warm water inlet 5 is installed on the top of the return water tank 1, and the warm water outlet 6 is installed at the other end of the top of the return water tank 1.

[0026] The return water chamber 1 includes a chamber body 101, a support frame 102, and heat exchange tubes 103. The support frame 102 is fixedly connected to the inside of the chamber body 101. The heat exchange tubes 103 are installed on the top of the support frame 102. One end of the heat exchange tubes 103 is connected to the flange of the inlet pipe 2, and the other end is connected to the flange of the outlet pipe 4. Return water from the boiler enters the return water chamber 1, utilizing the waste heat of the boiler return water to perform heat exchange treatment on the water entering the heat exchange tubes 103, thereby increasing the temperature of the tap water and raising the temperature entering the boiler, thus reducing the need for boiler heating. To reduce gas consumption and achieve energy savings, the heat exchange tube 103 is made of copper and has fins on the outside to increase the heat exchange contact area and facilitate heat exchange. The inner wall of the chamber 101 is equipped with an insulation layer to retain the waste heat of the boiler return water and reduce heat loss. The heat exchange tube 103 adopts a U-shaped tube design to increase its length within the chamber 101, which facilitates better heat exchange between the return water waste heat and the tap water. There are two support frames 102, which are respectively set at both ends of the bottom of the heat exchange tube 103 to ensure stable support for the heat exchange tube 103.

[0027] The filter assembly 3 includes a mounting bracket 301, a filter element 302, a mounting plate 303, and a fixing bolt 304. The mounting bracket 301 is fixedly connected to the outside of the water inlet pipe 2. The filter element 302 is installed inside the mounting bracket 301. The mounting plate 303 is fixedly connected to the top of the filter element 302. The fixing bolt 304 passes through the mounting plate 303 and is screwed to the mounting bracket 301. A handle is provided on the top of the mounting plate 303 to facilitate the replacement of the filter element 302 through the mounting plate 303.

[0028] The filter element 302 includes a mounting frame 311, a snap-fit ​​plate 312, a filter element 313, and a mounting bolt 314. The mounting frame 311 is fixedly connected to the bottom of the mounting plate 303. The snap-fit ​​plate 312 is snap-fitted into the interior of the mounting frame 311. The filter element 313 is fixedly connected into the interior of the snap-fit ​​plate 312. The mounting bolt 314 is screwed into the snap-fit ​​plate 312. The filter element 313 is installed in the mounting bracket 301, which facilitates the filtration of impurities in tap water and reduces the accumulation of impurities in the heat exchange tube 103, thus reducing the impact on the heat exchange effect.

[0029] When in use, connect the heating water inlet 5 of the equipment to the return water pipe of the underfloor heating pipe, the heating water outlet 6 to the return water inlet pipe of the HVAC boiler, the inlet pipe 2 to the tap water pipe, and the outlet pipe 4 to the tap water inlet of the HVAC boiler. The return water from the underfloor heating pipe enters the interior of the return water chamber 1, filling the interior of the return water chamber 1. When the underfloor heating needs to be replenished, water enters the interior of the return water chamber 1 from the inlet pipe 2. Heat exchange is achieved between the residual heat of the water in the heat exchange pipe 103 and the tap water, raising the temperature of the tap water. The water then enters the boiler for heating, which can reduce the use of gas and thus achieve energy saving. When no water replenishment is needed, the underfloor heating return water normally enters the boiler through the return water chamber 1 without reducing heat loss.

[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 building heating, ventilation, and air conditioning (HVAC) energy-saving device, comprising a return water tank (1), an inlet pipe (2), a filter assembly (3), an outlet pipe (4), a heating water inlet (5), and a heating water outlet (6), characterized in that: The inlet pipe (2) is located at one end of the return water chamber (1), the filter assembly (3) is located outside the inlet pipe (2), the outlet pipe (4) is located at the other end of the return water chamber (1), the warm water inlet (5) is installed at the top of the return water chamber (1), and the warm water outlet (6) is installed at the other end of the top of the return water chamber (1). The return water chamber (1) includes a chamber body (101), a support frame (102) and a heat exchange tube (103). The support frame (102) is fixedly connected to the inside of the chamber body (101). The heat exchange tube (103) is installed on the top of the support frame (102). One end of the heat exchange tube (103) is connected to the flange of the inlet pipe (2), and the other end of the heat exchange tube (103) is connected to the flange of the outlet pipe (4).

2. The building heating, ventilation, and air conditioning energy-saving equipment according to claim 1, characterized in that: The heat exchange tube (103) is made of copper and has fins on the outside.

3. The building heating, ventilation, and air conditioning energy-saving equipment according to claim 1, characterized in that: The filter assembly (3) includes a mounting bracket (301), a filter element (302), a mounting plate (303), and a fixing bolt (304). The mounting bracket (301) is fixedly connected to the outside of the water inlet pipe (2). The filter element (302) is installed inside the mounting bracket (301). The mounting plate (303) is fixedly connected to the top of the filter element (302). The fixing bolt (304) passes through the mounting plate (303) and is screwed to the mounting bracket (301).

4. The building heating, ventilation, and air conditioning energy-saving equipment according to claim 3, characterized in that: The filter element (302) includes a mounting frame (311), a snap-fit ​​plate (312), a filter element (313), and a mounting bolt (314). The mounting frame (311) is fixedly connected to the bottom of the mounting plate (303). The snap-fit ​​plate (312) is snap-fitted into the interior of the mounting frame (311). The filter element (313) is fixedly connected into the interior of the snap-fit ​​plate (312). The mounting bolt (314) is screwed into the snap-fit ​​plate (312).

5. The building heating, ventilation, and air conditioning energy-saving equipment according to claim 1, characterized in that: The inner wall of the silo (101) is provided with a heat insulation layer.

6. The building heating, ventilation, and air conditioning energy-saving equipment according to claim 3, characterized in that: A handle is provided on the top of the mounting plate (303).

7. The building heating, ventilation, and air conditioning energy-saving equipment according to claim 1, characterized in that: The heat exchange tube (103) adopts a U-shaped tube design to increase its length within the chamber (101).

8. The building heating, ventilation, and air conditioning energy-saving equipment according to claim 1, characterized in that: The number of support frames (102) is two, which are respectively set at both ends of the bottom of the heat exchange tube (103).

Citation Information

Patent Citations

  • Heating, ventilating and energy-saving equipment for building

    CN212157373U