A device for realizing water inlet deoxygenization of a heating ventilation system

Abstract

This invention relates to the field of HVAC systems, specifically to a device for deoxygenating the inlet water of an HVAC system. The device includes a deoxygenating tank with supporting legs installed below it. A partition is installed on the inner wall of the deoxygenating tank, dividing it into upper and lower spaces. The invention deoxygenates water by vaporizing it and then transporting it into a U-shaped pipe. At the lowest point of the pipe, the gas is condensed and liquefied, removing air and completing the deoxygenation process. The deoxygenated water is then guided through a high-temperature water source undergoing vaporization below the deoxygenating tank to preheat the water source. The discharged air after deoxygenation contains a certain temperature. When the temperature of the high-temperature water source undergoing vaporization below the deoxygenating tank is low, the discharged air can enter the water source below the deoxygenating tank through a spiral pipe, thereby recovering residual heat. This structure ensures that the deoxygenated water can be quickly heated before being injected into the HVAC system, reducing the power consumption of HVAC heating and deoxygenation heating.

Description

Technical Field

[0001] This invention relates to the field of heating, ventilation, and air conditioning (HVAC) systems, and more specifically to a device for deoxygenating the inlet water of an HVAC system. Background Technology

[0002] Heating, ventilation, and air conditioning (HVAC) systems are an important component of buildings, designed to provide a comfortable, safe, and energy-efficient indoor environment. The working principle of HVAC systems is primarily based on a series of heat transfer, heat exchange, and heat transport processes. By controlling parameters such as air temperature, flow, and humidity, they create a comfortable indoor environment. Existing HVAC systems require the removal of oxygen from the water source before filling it to prevent high-temperature water carrying oxygen from entering the piping system, which could cause oxidation inside the pipes and reduce their lifespan.

[0003] Chinese invention patent application CN212987181U discloses a water replenishment and deoxygenation device for a new energy boiler, comprising a feedwater tank. A pressure pump is fixedly installed on the top surface of the feedwater tank, with one end of the pressure pump connected to an air inlet pipe and the other end connected to a U-shaped pipe. In this invention, the pressure pump is activated via a control panel, causing the air inlet pipe to guide steam from the boiler into the U-shaped pipe, which then discharges into two comb-shaped air injection pipes inside the feedwater tank. This allows steam to be discharged into the feedwater tank through multiple air holes on the surface of the two air injection pipes, which is beneficial for heat exchange between the steam and the liquid in the feedwater tank and also agitates the liquid in the form of bubbles. At the same time, the steam increases the air pressure in the feedwater tank, which is beneficial for raising the temperature inside the feedwater tank. Activating the electric heating element via the control panel enables dual heating of the liquid inside the feedwater tank, which is beneficial for rapid temperature increase and thus increases deoxygenation efficiency.

[0004] Existing deoxygenation devices typically employ high-temperature deoxygenation to separate oxygen during operation. This separation involves condensing water vapor to separate oxygen and other gases from the water source. However, this method has a drawback: the water is at a relatively low temperature after separation. When this water is added to the HVAC system, a significant amount of resources are required to heat it to the necessary temperature. Furthermore, heating the water to an evaporative state before adding it to the deoxygenation device also requires substantial resources, significantly increasing the cost of deoxygenation.

[0005] Therefore, it is necessary to invent a device for deoxygenating the inlet water of a heating, ventilation, and air conditioning system to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a device for deoxygenating the water inlet of a heating, ventilation, and air (HVAC) system. The device heats the water source and then passes it through a U-shaped pipe, where it condenses at the bend, thus separating the water from the air. The air, still warm, can then enter the water source below through a spiral pipe for waste heat recovery. Simultaneously, the deoxygenated water can be preheated in the lower water source before being injected into the HVAC system, reducing heating losses and addressing the high heating costs associated with both the deoxygenation process and subsequent injection into the HVAC system in existing technologies.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a device for deoxygenating the inlet water of a heating, ventilation, and air conditioning system, comprising a deoxygenation tank, a support leg installed below the deoxygenation tank, a partition installed on the inner wall of the deoxygenation tank, the partition dividing the deoxygenation tank into upper and lower spaces, a pressure relief port opened on the inner wall of the deoxygenation tank, a heating pipe connected through the bottom of the deoxygenation tank, and a water injection pipe installed at the bottom of the deoxygenation tank, wherein the water injection pipe, the heating pipe and the pressure relief port are all located in the space below the deoxygenation tank;

[0008] The deoxygenation component is located inside the upper part of the deoxygenation tank and is used to remove oxygen from the water.

[0009] The stirring component is located inside the lower part of the deaerator and is used to agitate the water source.

[0010] A flow guiding component, located below the baffle, is used to guide the steam flow.

[0011] As a preferred embodiment of the present invention, the deaeration assembly includes through holes, which are formed in a partition and are arranged in multiple sets in a ring. A steam pipe is connected through the through holes and is located in the upper space inside the deaeration tank. A connecting pipe is arranged in a ring on one side of the steam pipe and is connected through the other corresponding through holes. This structure is arranged in multiple sets in a ring on the partition.

[0012] As a preferred embodiment of the present invention, a condenser is installed on the top of the deaerator, an annular condenser pipe is installed above the partition plate and connected to the condenser pipe, and a U-shaped pipe is connected through the top of the steam pipe, and the annular condenser pipe and each group of U-shaped pipes are connected and fitted together at the bends.

[0013] As a preferred embodiment of the present invention, an L-shaped drain pipe is connected through the lowest point of the U-shaped pipe, and the L-shaped drain pipe penetrates through the partition plate and is connected through the interior of the space below the deaerator. An annular pipe is installed on the lower outer side of the deaerator, and the annular pipe is connected through each group of L-shaped drain pipes. A drain pipe is connected through one side of the annular pipe.

[0014] As a preferred embodiment of the present invention, an annular pipe II is installed on the upper outer side of the deaerator, and the annular pipe II is connected to each group of U-shaped pipes. One side of the annular pipe II is connected to the exhaust gas recovery device pipeline. A spiral pipe is installed in the space below the deaerator. A guide pipe is installed between the spiral pipe and the annular pipe II, and a control valve is installed in the guide pipe. The spiral pipe and the L-shaped drain pipe are submerged in the water source in the space below the deaerator.

[0015] In a preferred embodiment of the present invention, the stirring assembly includes a motor, which is mounted above the partition and located in the space above the deaerator. A main stirring rod is mounted on the output end of the motor and is located in the space below the deaerator.

[0016] As a preferred embodiment of the present invention, an annular frame is installed above the main stirring rod, and a main flow tube is installed below the partition, with the interior of the main flow tube completely covering all through holes.

[0017] As a preferred embodiment of the present invention, a gear ring is installed on the inner wall of the main flow cylinder, four sets of auxiliary stirring rods are rotatably connected below the annular frame, a gear ring is installed above the annular frame, and gears are fixedly sleeved on the four sets of auxiliary stirring rods, with the four sets of gears meshing with the gear ring.

[0018] As a preferred embodiment of the present invention, the flow guiding assembly includes a secondary flow guiding cylinder, which is installed in a ring shape below the partition plate, and the secondary flow guiding cylinder covers each set of through holes individually. A turbo fan is installed inside the secondary flow guiding cylinder, and a second gear is shaft-connected below the turbo fan, and each set of second gears meshes with a second gear ring.

[0019] Compared with the prior art, the technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0020] By vaporizing water and conveying it into a U-shaped pipe, the gas is condensed and liquefied at the lowest point of the U-shaped pipe, thus removing the internal air and completing the deoxygenation process. The deoxygenated water is then guided through a high-temperature water source undergoing vaporization below the deoxygenation tank, preheating the water source. The discharged air, containing a certain temperature, can then be channeled back into the water source below the deoxygenation tank through a spiral pipe when the temperature of the high-temperature water source is low, thus recovering waste heat. This structure ensures that the deoxygenated water can quickly reach the required temperature for the HVAC system, reducing the power consumption of HVAC heating and deoxygenation heating, and achieving resource conservation. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the U-shaped tube planing structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the bottom structure of the partition plate of the present invention;

[0025] Figure 4 This is a schematic diagram of the layout structure of the main stirring rod and the auxiliary stirring rod of the present invention;

[0026] Figure 5 This is a schematic diagram of the deaerator's planed structure according to the present invention;

[0027] Figure 6 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0028] Figure 7 For the present invention Figure 3 Enlarged structural diagram at point B;

[0029] Figure 8 For the present invention Figure 4 Enlarged structural diagram at point C.

[0030] Explanation of reference numerals in the attached figures:

[0031] 001. Deaerator; 101. Support leg; 102. Baffle; 103. Pressure relief port; 104. Heating tube; 105. Water injection pipe; 002. Deaerator assembly; 201. Through hole; 202. Steam pipe; 203. Connecting pipe; 204. U-shaped pipe; 205. L-shaped drain pipe; 206. Annular pipe one; 207. Annular pipe two; 208. Spiral pipe; 209. Guide pipe; 210. Drain pipe; 211. Condenser; 212. Annular condenser pipe; 003. Stirring assembly; 301. Motor; 302. Main stirring rod; 303. Annular frame; 304. Main flow tube; 305. Gear ring one; 306. Secondary stirring rod; 307. Gear one; 004. Guide assembly; 401. Secondary guide tube; 402. Turbine fan; 403. Gear two; 404. Gear ring two. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] This invention provides, for example Figure 1-8 The device shown is for deoxygenating the inlet water of a heating, ventilation and air conditioning system. It includes a deoxygenating tank 001, a support leg 101 installed below the deoxygenating tank 001, a partition 102 installed on the inner wall of the deoxygenating tank 001, which divides the deoxygenating tank 001 into upper and lower spaces, a pressure relief port 103 opened on the inner wall of the deoxygenating tank 001, a heating pipe 104 connected through the bottom of the deoxygenating tank 001, and a water injection pipe 105 installed at the bottom of the deoxygenating tank 001. The water injection pipe 105, the heating pipe 104 and the pressure relief port 103 are all located in the space below the deoxygenating tank 001.

[0034] Water can be injected into the space below the deaerator tank 001 through the water injection pipe 105, and at the same time, the heating pipe 104 can inject heat to heat the water. When the pressure is high, the pressure relief port 103 can be opened to relieve the pressure in the deaerator tank 001 and ensure the safe operation of deaeration.

[0035] Deoxygenation component 002 is located inside the upper part of deoxygenation tank 001 and is used to remove oxygen from the water;

[0036] The stirring component 003 is located inside the lower part of the deaerator 001 and is used to agitate the water source.

[0037] The flow guiding component 004 is located below the partition 102 and is used to guide the steam flow.

[0038] Furthermore, in the above structure, the deaerator assembly 002 includes through holes 201, which are opened in the partition 102 and are arranged in a ring. A steam pipe 202 is connected through the through holes 201 and is located in the upper space inside the deaerator tank 001. A connecting pipe 203 is arranged in a ring on one side of the steam pipe 202 and is connected through the other corresponding through holes 201. This structure is arranged in a ring on the partition 102 in multiple sets.

[0039] Through the through hole 201, steam in the space below the deaerator 001 can enter the steam pipe 202 and the connecting pipe 203.

[0040] Furthermore, in the above structure, a condenser 211 is installed on the top of the deaerator 001, an annular condenser 212 is installed above the partition 102, and the annular condenser 212 is connected to the condenser 211. A U-shaped pipe 204 is connected through the top of the steam pipe 202, and the annular condenser 212 and each group of U-shaped pipes 204 are connected and fitted together at the bends.

[0041] The condenser 211 allows the annular condenser 212 to perform condensation at the bend of the U-shaped tube 204. At this time, the steam passing through the U-shaped tube 204 will be liquefied due to the condensation effect, and the internal gas will be continuously transported along the U-shaped tube 204, thereby completing the removal of oxygen from the water source.

[0042] Furthermore, in the above structure, the lowest point of the U-shaped pipe 204 is connected to an L-shaped drain pipe 205, and the L-shaped drain pipe 205 penetrates the partition 102. The L-shaped drain pipe 205 is also connected to the interior of the space below the deaerator 001. An annular pipe 206 is installed on the lower outer side of the deaerator 001, and the annular pipe 206 is connected to each group of L-shaped drain pipes 205. A drain pipe 210 is connected to one side of the annular pipe 206.

[0043] The condensed water can be collected through the L-shaped drain pipe 205 and transported through the lower space inside the deaerator 001. At this time, due to the high temperature of the water in the lower space of the deaerator 001, the liquefied water can be heated to raise its temperature or return it to normal temperature, so as to avoid the low temperature after deaeration. Finally, it enters the ring pipe 206 and is transported to the heating system by the drain pipe 210.

[0044] Furthermore, in the above structure, an annular pipe 207 is installed above the outer side of the deaerator 001, and the annular pipe 207 is connected to each group of U-shaped pipes 204. One side of the annular pipe 207 is connected to the exhaust gas recovery device pipeline. A spiral pipe 208 is installed in the space below the deaerator 001. A guide pipe 209 is installed between the spiral pipe 208 and the annular pipe 207, and a control valve is installed in the guide pipe 209. The spiral pipe 208 and the L-shaped drain pipe 205 are submerged in the water source in the space below the deaerator 001.

[0045] The gas can be transported to the annular pipe 207 through the U-shaped pipe 204. Since the gas in the annular pipe 207 still has a certain temperature, when new water is injected below the deaerator 001, the temperature is low. The gas can be transported to the spiral pipe 208 to heat the newly injected water. When the water is heated to a higher temperature, the guide pipe 209 can be closed, so that the gas can be discharged normally.

[0046] Furthermore, in the above structure, the stirring assembly 003 includes a motor 301, which is installed above the partition 102 and located in the space above the deaerator 001. A main stirring rod 302 is installed at the output end of the motor 301 and is located in the space below the deaerator 001.

[0047] The motor 301 can drive the main stirring rod 302 to rotate in the space below the deaerator 001, thereby agitating the water source and increasing the efficiency of water heating.

[0048] Furthermore, in the above structure, an annular frame 303 is installed above the main stirring rod 302, and a main flow tube 304 is installed below the partition plate 102, with the interior of the main flow tube 304 completely covering all through holes 201.

[0049] The main flow tube 304 allows water vapor generated from the water source to smoothly enter the area where the through hole 201 is located.

[0050] Furthermore, in the above structure, a gear ring 305 is installed on the inner wall of the main flow cylinder 304, four sets of auxiliary stirring rods 306 are rotatably connected below the annular frame 303, a gear ring 404 is installed above the annular frame 303, and gears 307 are sleeved and fixed on the four sets of auxiliary stirring rods 306, and the four sets of gears 307 mesh with the gear ring 305.

[0051] The gear 307 slides along the gear ring 404, allowing the auxiliary stirring rod 306 to rotate as a whole under the action of the ring frame 303, and it can also rotate on its own axis, thereby improving the stirring effect.

[0052] Furthermore, in the above structure, the flow guiding assembly 004 includes a secondary flow guiding cylinder 401, which is installed in a ring shape below the partition plate 102, and the secondary flow guiding cylinder 401 covers each set of through holes 201 individually. A turbo fan 402 is installed inside the secondary flow guiding cylinder 401, and a gear 403 is shaft-connected below the turbo fan 402, and each set of gears 403 meshes with a gear ring 404.

[0053] By setting up the secondary guide tube 401, the gear ring 404, under the action of the ring frame 303, can drive the turbine fan 402 to rotate, thereby allowing water vapor to enter the secondary guide tube 401, thus accurately delivering water vapor into the through hole 201 and improving the efficiency of water vapor transportation.

[0054] like Figure 1-8As shown, water can be injected into the space below the deaerator 001 through the water injection pipe 105. At this time, the heating pipe 104 heats the water, and the motor 301 drives the main stirring rod 302 and the auxiliary stirring rod 306 to rotate, thereby agitating the water and increasing heating efficiency. Simultaneously, the turbofan 402 rotates inside the auxiliary guide tube 401, guiding the water vapor generated by the water source. The water vapor enters the steam pipe 202 and the connecting pipe 203 through the through hole 201. When it passes the bend of the U-shaped pipe 204, the water vapor condenses into water under the condensing action of the annular condenser 212, and then enters the annular pipe 206 through the L-shaped drain pipe 205. Simultaneously, the deaerator... Air is continuously supplied to the annular pipe 207. When the water temperature below the deaerator 001 is low, the residual heat of the deaerated air can be transferred to the water below the deaerator 001 through the spiral pipe 208. Otherwise, it is discharged normally, realizing heat recovery and reducing the cost of deaeration. The water in the L-shaped drain pipe 205 passes through the water source in the space below the deaerator 001, thereby preheating the water in the L-shaped drain pipe 205 so that it can be quickly heated when it enters the HVAC system, thereby reducing resources. This structure ensures that the deaerated water can quickly reach the water temperature required by the HVAC system, reducing the power consumption of HVAC heating and deaeration heating, and achieving the purpose of saving resources.

[0055] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for deoxygenating the inlet water of a heating, ventilation, and air conditioning (HVAC) system, comprising a deoxygenating tank (001), characterized in that: The deaerator (001) is equipped with a support leg (101) at the bottom. A partition (102) is installed on the inner wall of the deaerator (001), and the partition (102) divides the deaerator (001) into upper and lower spaces. A pressure relief port (103) is provided on the inner wall of the deaerator (001). A heating pipe (104) is connected through the bottom of the deaerator (001). A water injection pipe (105) is installed at the bottom of the deaerator (001). The water injection pipe (105), the heating pipe (104) and the pressure relief port (103) are all located in the space below the deaerator (001). The deoxygenation component (002) is located inside the upper part of the deoxygenation tank (001) and is used to remove oxygen from the water; A stirring assembly (003) is located inside the lower part of the deaerator (001) and is used to agitate the water source; A flow guiding component (004) is disposed below the partition plate (102) for guiding steam flow. The deaerator component (002) includes through holes (201), which are opened in the partition plate (102) and are arranged in a ring. A steam pipe (202) is connected through the through holes (201), and the steam pipe (202) is disposed in the upper space inside the deaerator tank (001). A connecting pipe (203) is arranged in a ring on one side of the steam pipe (202) and is connected through the connecting pipe (203) to the other corresponding through holes (201). This structure is arranged in a ring on the partition plate (102) in multiple sets. A condenser (211) is installed on the top of the deaerator (001), and an annular condenser (212) is installed above the partition (102). The annular condenser (212) is connected to the condenser (211) by a pipe. A U-shaped pipe (204) is connected through the top of the steam pipe (202), and the annular condenser (212) and each group of U-shaped pipes (204) are connected and fitted together at the bends. The lowest point of the U-shaped pipe (204) is connected to an L-shaped drain pipe (205), and the L-shaped drain pipe (205) passes through the partition (102). The L-shaped drain pipe (205) also passes through the interior space below the deaerator (001). An annular pipe (206) is installed below the outer side of the deaerator (001), and the annular pipe (206) is connected to each group of L-shaped drain pipes (205). A drain pipe (210) is connected to one side of the annular pipe (206). Above the outer side of the deaerator (001) is... The device is equipped with a second annular pipe (207), which is connected to each group of U-shaped pipes (204). One side of the second annular pipe (207) is connected to the exhaust gas recovery device pipeline. A spiral pipe (208) is installed in the space below the deaerator (001). A guide pipe (209) is installed between the spiral pipe (208) and the second annular pipe (207). A control valve is installed in the guide pipe (209). The spiral pipe (208) and the L-shaped drain pipe (205) are submerged in the water source in the space below the deaerator (001).

2. The device for deoxygenating the inlet water of a heating, ventilation, and air conditioning system according to claim 1, characterized in that: The stirring assembly (003) includes a motor (301), which is installed above the partition (102) and located in the space above the deaerator (001). The output end of the motor (301) is equipped with a main stirring rod (302), which is located in the space below the deaerator (001).

3. The device for deoxygenating the inlet water of a heating, ventilation, and air conditioning system according to claim 2, characterized in that: An annular frame (303) is installed above the main stirring rod (302), and a main flow tube (304) is installed below the partition (102), with the interior of the main flow tube (304) completely covering all through holes (201).

4. The device for deoxygenating the inlet water of a heating, ventilation, and air conditioning system according to claim 3, characterized in that: A gear ring (305) is installed on the inner wall of the main flow tube (304). Four sets of auxiliary stirring rods (306) are rotatably connected below the annular frame (303). A gear ring (404) is installed above the annular frame (303). Gears (307) are sleeved and fixed on the four sets of auxiliary stirring rods (306), and the four sets of gears (307) mesh with gear rings (305).

5. The device for deoxygenating the inlet water of a heating, ventilation, and air conditioning system according to claim 4, characterized in that: The flow guiding assembly (004) includes a secondary flow guiding cylinder (401), which is installed in a ring shape below the partition plate (102). The secondary flow guiding cylinder (401) covers each set of through holes (201) individually. A turbo fan (402) is installed inside the secondary flow guiding cylinder (401). A gear two (403) is shaft-connected below the turbo fan (402), and each set of gear two (403) meshes with a gear ring two (404).

Images