Flash drum with high-precision floating ball valve for central air conditioner

Abstract

The utility model relates to the field of flash drums, and discloses a flash drum with a high-precision floating ball valve for a central air conditioner, which comprises a drum body assembly, the drum body assembly comprises a tank body, a tank body flange, an end plate, a baffle plate, a support, a barrier plate, a cover plate and a liquid outlet pipe, and a liquid storage bag assembly is arranged at the upper end of the outer wall of the front end of the tank body. The liquid storage bag assembly comprises a liquid storage tank, and the outer wall of one side of the liquid storage tank is connected with a refrigerant pipe in a penetrating mode. According to the utility model, when the liquid level of a refrigerant in the tank body rises, the floating ball is driven to rise, so that the floating ball drives the rotating shaft to rotate through the floating ball rod, the rotating shaft drives the large gear to rotate, the large gear is meshed with the small gear, the small gear drives the square valve on the transmission shaft to rotate, and the square valve on the transmission shaft is driven to rotate. Therefore, the production cost of the flash drum can be effectively reduced by replacing the previous inductor and control valve with the floating ball valve assembly.

Description

Technical Field

[0001] The utility model relates to the field of flash evaporation cylinders, in particular to a flash evaporation cylinder for central air conditioning with a high-precision float valve. Background Art

[0002] The flash cylinder in the central air conditioner is also called the flash tank. It is a key component inside the central air conditioner. Its main function is to convert the liquid part of the refrigerant into gas to achieve pressure and temperature regulation. Some existing flash cylinders use the form of sensors plus control valves, which are relatively expensive. For this reason, technical improvements have been made and a flash cylinder for central air conditioning with a high-precision float valve has been proposed.

[0003] Most of the existing flash tanks of central air conditioners use sensors and control valves to control the liquid level inside, which greatly increases the production cost of the flash tank and indirectly increases the production cost of the entire central air conditioner. At the same time, the existing flash cylinders may cause the outer and inner walls of the flash cylinder to corrode due to the chemical properties of the coolant or temperature changes during long-term use. Therefore, technical improvements are urgently needed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a flash cylinder for central air conditioning with a high-precision float valve. The flash cylinder is provided with a protective coating, and the corrosion-resistant coating is sprayed on the inner wall and outer wall of the tank body respectively, so that the corrosion-resistant coating on the outer wall can effectively prevent the corrosion of the equipment outside by external environmental factors. At the same time, the corrosion-resistant coating, polyurethane coating and ceramic coating on the inner wall can effectively protect the surface of the inner wall of the tank body that is in direct contact with the coolant, and prevent corrosion caused by the chemical properties of the coolant or temperature changes, thereby greatly improving the service life of the flash tank.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A flash evaporation cylinder for central air conditioning with a high-precision float valve comprises a barrel assembly, the barrel assembly comprising a tank body, a tank flange, an end plate, a baffle, a bracket, a baffle plate, a cover plate and a liquid outlet pipe, a liquid storage bag assembly is provided at the upper end of the outer wall of the front end of the tank body, the liquid storage bag assembly comprises a liquid storage tank, a refrigerant pipe is connected through the outer wall of one side of the liquid storage tank, a square flange is fixedly connected to the outer wall of the refrigerant pipe on the side of the liquid storage tank, a connecting pipe is fixedly connected to the outer wall of the connecting pipe on the side of the liquid storage tank away from the refrigerant pipe, an angle valve is fixedly connected to the outer wall of the connecting pipe on the side of the liquid storage tank, and a float valve assembly is provided inside the liquid storage tank;

[0007] The float valve assembly includes a square valve seat, a transmission shaft is provided inside the square valve seat, the shaft body of the transmission shaft is fixedly connected to the square valve, one end of the transmission shaft passes through the square valve seat and is fixedly connected to a small gear, the rear end outer wall of the square valve seat is fixedly connected to a mounting frame, a rotating shaft is provided inside the mounting frame, the shaft body of the rotating shaft is fixedly connected to a float rod, the lower surface of the float rod is fixedly connected to a float, one end of the rotating shaft passes through the mounting frame and is fixedly connected to a large gear, the front end of the inner wall of the liquid storage tank is fixedly connected to a capsule partition, the inner and outer walls of the tank body are both provided with a protective coating, and the protective coating includes a corrosion-resistant coating, a polyurethane coating, and a ceramic coating;

[0008] Through the above technical solution, by precisely controlling the flow of liquid, it helps to improve the working efficiency and performance stability of the entire system.

[0009] Furthermore, the tank flange is fixed to the upper surface of the tank, the cover plate is fixedly connected to the upper surface of the tank flange, the liquid outlet pipe is provided on one side of the upper surface of the cover plate, the two brackets are respectively fixed to the middle and lower ends of the front end outer wall of the tank, the end plate is fixed to the upper end of the rear end inner wall of the tank, the upper surface of the baffle is fixedly connected to the end plate, and the barrier plate is fixed to the lower end of the inner wall of the tank;

[0010] Through the above technical solution, it is ensured that the refrigerant is in an appropriate state before entering the evaporator, thereby improving the efficiency and stability of the system.

[0011] Furthermore, the corrosion-resistant coating is sprayed on the inner and outer walls of the tank body, the polyurethane coating is arranged on the side of the inner wall corrosion-resistant coating close to the tank body, and the ceramic coating is arranged on the side of the polyurethane coating away from the corrosion-resistant coating;

[0012] Through the above technical solution, the corrosion-resistant coating is sprayed on the inner and outer walls of the tank body, the polyurethane coating is arranged on the side of the inner wall corrosion-resistant coating close to the tank body, and the ceramic coating is arranged on the side of the polyurethane coating away from the corrosion-resistant coating. Therefore, the equipment's resistance to corrosion is improved through multi-layer protection, thereby extending its service life.

[0013] Furthermore, an inlet pipe is provided at the lower end of the bracket, and the inlet pipe is connected to the tank body;

[0014] Through the above technical solution, an inlet pipe is provided at the lower end of the lower end bracket, and the inlet pipe is connected to the tank body, so that the liquid can be discharged better.

[0015] Furthermore, a through hole is opened in the middle of the capsule partition plate body, and the front end outer wall of the square valve is tightly fitted with the rear end outer wall of the capsule partition plate;

[0016] Through the above technical solution, a through hole is opened in the middle of the sac partition plate body, and the front end outer wall of the square valve is tightly fitted with the rear end outer wall of the sac partition, so that the through hole can be better closed by the square valve.

[0017] Furthermore, the large gear and the small gear are meshed with each other;

[0018] Through the above technical solution, the large gear and the small gear are meshed with each other, thereby effectively improving the accuracy of the entire float valve assembly.

[0019] Furthermore, a sight glass is fixedly connected to the outer wall of one side of the tank body;

[0020] Through the above technical solution, a sight glass is fixedly connected to the outer wall of one side of the tank body, thereby making observation more convenient.

[0021] Furthermore, one end of the transmission shaft away from the small gear is rotatably connected to the inner wall of one side of the square valve seat, and one end of the rotation shaft away from the large gear is rotatably connected to the inner wall of one side of the installation frame;

[0022] Through the above technical solution, the end of the transmission shaft away from the small gear is rotatably connected to the inner wall of one side of the square valve seat, and the end of the rotating shaft away from the large gear is rotatably connected to the inner wall of one side of the mounting frame, thereby better improving the stability of the transmission shaft and the rotating shaft during rotation.

[0023] The utility model has the following beneficial effects:

[0024] 1. The utility model proposes a flash cartridge for central air-conditioning with a high-precision float valve. Compared with the existing flash cartridge, the flash cartridge injects refrigerant into the interior of the tank through the liquid storage bag assembly and the float valve assembly. When the refrigerant liquid level in the tank rises, the float is driven to rise, so that the float drives the rotating shaft to rotate through the float rod, and the rotating shaft drives the large gear to rotate, so that the large gear and the small gear are meshed, so that the small gear drives the square valve on the transmission shaft to rotate, so that the square valve blocks the through hole. Therefore, by replacing the previous sensor and control valve with the float valve assembly, the production cost of the flash cartridge can be effectively reduced, thereby indirectly reducing the cost of the central air-conditioning, thereby reducing the selling price of the central air-conditioning, so that the central air-conditioning has a higher cost performance and higher sales among a number of products.

[0025] 2. The utility model proposes a flash cylinder for central air conditioning with a high-precision float valve. Compared with the existing flash cylinders, the flash cylinder has a protective coating. By spraying the corrosion-resistant coating on the inner and outer walls of the tank body respectively, the corrosion-resistant coating on the outer wall can effectively prevent the external environmental factors from corroding the outside of the equipment. At the same time, the corrosion-resistant coating, polyurethane coating and ceramic coating on the inner wall can effectively protect the surface of the inner wall of the tank that is in direct contact with the coolant, and prevent corrosion caused by the chemical properties of the coolant or temperature changes. Therefore, the service life of the flash tank can be greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is an axonometric drawing of a flash drum for central air conditioning with a high-precision float valve proposed in the utility model;

[0027] Figure 2 This is a structural diagram of a flash drum for central air conditioning with a high-precision float valve proposed by the utility model;

[0028] Figure 3 This is a top view of a flash drum for central air conditioning with a high-precision float valve proposed by the utility model;

[0029] Figure 4 This is a structural diagram of a liquid storage capsule assembly and a float valve assembly in a flash drum for a central air conditioner with a high-precision float valve proposed by the utility model;

[0030] Figure 5 This is an axonometric view of a float valve assembly in a flash drum for a central air conditioner with a high-precision float valve proposed in the utility model;

[0031] Figure 6 This is a structural diagram of the installation frame and other components of a flash drum for central air conditioning with a high-precision float valve proposed by the utility model;

[0032] Figure 7 This is an axonometric view of a liquid storage capsule assembly in a flash drum for a central air conditioner with a high-precision float valve proposed in the utility model;

[0033] Figure 8 This is a schematic diagram of the partial structure of a protective coating in a flash drum for a central air conditioner with a high-precision float valve proposed by the utility model.

[0034] Legend:

[0035] 1. Barrel body assembly; 101. Tank body; 102. Tank body flange; 103. End plate; 104. Baffle; 105. Sight glass; 106. Bracket; 107. Blocking plate; 108. Cover plate; 109. Liquid outlet pipe; 2. Liquid storage capsule assembly; 201. Liquid storage tank; 202. Refrigerant pipe; 203. Square flange; 204. Connecting pipe; 205. Angle valve; 3. Float valve assembly; 301. Square valve seat; 302. Mounting frame; 303. Large gear; 304. Float rod; 305. Float; 306. Capsule partition; 307. Square valve; 308. Through hole; 309. Pinion; 310. Rotating shaft; 311. Drive shaft; 4. Inlet pipe; 5. Protective coating; 501. Corrosion-resistant coating; 502. Polyurethane coating; 503. Ceramic coating. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] Reference Figure 1-7 , an embodiment provided by the utility model:

[0038] A flash drum for central air conditioning with a high-precision float valve comprises a barrel assembly 1, the barrel assembly 1 comprising a tank body 101, a tank flange 102, an end plate 103, a baffle 104, a bracket 106, a baffle plate 107, a cover plate 108 and a liquid outlet pipe 109, a liquid storage bag assembly 2 is provided at the upper end of the front end outer wall of the tank body 101, the liquid storage bag assembly 2 comprises a liquid storage tank 201, a refrigerant pipe 202 is connected through the outer wall of one side of the liquid storage tank 201, a square flange 203 is fixedly connected to the outer wall of the refrigerant pipe 202 on the side away from the liquid storage tank 201, a connecting pipe 204 is fixedly connected to the outer wall of the connecting pipe 204 on the side away from the liquid storage tank 201, an angle valve 205 is fixedly connected to the outer wall of the connecting pipe 204 on the side away from the liquid storage tank 201, and a float valve assembly 3 is provided inside the liquid storage tank 201;

[0039] The float valve assembly 3 includes a square valve seat 301, a transmission shaft 311 is provided inside the square valve seat 301, the shaft body of the transmission shaft 311 is fixedly connected to the square valve 307, one end of the transmission shaft 311 passes through the square valve seat 301 and is fixedly connected to the small gear 309, the rear end outer wall of the square valve seat 301 is fixedly connected to the mounting frame 302, the interior of the mounting frame 302 is provided with a rotating shaft 310, the shaft body of the rotating shaft 310 is fixedly connected to the float rod 304, the lower surface of the float rod 304 is fixedly connected to the float 305, one end of the rotating shaft 310 passes through the mounting frame 302 and is fixedly connected to the large gear 303, the front end of the inner wall of the liquid storage tank 201 is fixedly connected to the capsule partition 306, the inner and outer walls of the tank body 101 are provided with a protective coating 5, and the protective coating 5 includes a corrosion-resistant coating 501, a polyurethane coating 502, and a ceramic coating 503;

[0040] Precisely controlling liquid flow helps improve the efficiency and performance stability of the entire system.

[0041] The tank flange 102 is fixed to the upper surface of the tank body 101, the cover plate 108 is fixedly connected to the upper surface of the tank flange 102, the liquid outlet pipe 109 is arranged on one side of the upper surface of the cover plate 108, the two brackets 106 are respectively fixed to the middle and lower end of the front end outer wall of the tank body 101, the end plate 103 is fixed to the upper end of the rear end inner wall of the tank body 101, the upper surface of the baffle 104 is fixedly connected to the end plate 103, and the barrier plate 107 is fixed to the lower end of the inner wall of the tank body 101, so as to ensure that the refrigerant is in an appropriate state before entering the evaporator, thereby improving the efficiency and stability of the system.

[0042] The corrosion-resistant coating 501 is sprayed on the inner and outer walls of the tank body 101, the polyurethane coating 502 is arranged on the side of the inner wall corrosion-resistant coating 501 close to the tank body 101, and the ceramic coating 503 is arranged on the side of the polyurethane coating 502 away from the corrosion-resistant coating 501. By spraying the corrosion-resistant coating 501 on the inner and outer walls of the tank body 101, the polyurethane coating 502 is arranged on the side of the inner wall corrosion-resistant coating 501 close to the tank body 101, and the ceramic coating 503 is arranged on the side of the polyurethane coating 502 away from the corrosion-resistant coating 501, the equipment's resistance to corrosion is improved through multi-layer protection, thereby extending its service life.

[0043] The lower end of the lower end bracket 106 is provided with an inlet pipe 4, which is connected to the tank body 101, and the lower end of the lower end bracket 106 is provided with an inlet pipe 4, which is connected to the tank body 101, so that the liquid can be better discharged. A through hole 308 is opened in the middle of the capsule partition 306 plate body, and the front end outer wall of the square valve 307 is tightly fitted with the rear end outer wall of the capsule partition 306. A through hole 308 is opened in the middle of the capsule partition 306 plate body, and the front end outer wall of the square valve 307 is tightly fitted with the rear end outer wall of the capsule partition 306, so that the through hole 308 can be better closed by the square valve 307, and the large gear 303 and the small gear 309 are engaged with each other. By engaging the large gear 303 and the small gear 309 with each other, the accuracy of the entire float valve assembly 3 can be effectively improved.

[0044] A sight glass 105 is fixedly connected to the outer wall of one side of the tank body 101. The sight glass 105 is fixedly connected to the outer wall of one side of the tank body 101, which makes observation more convenient. The end of the transmission shaft 311 away from the small gear 309 is rotatably connected to the inner wall of one side of the square valve seat 301, and the end of the rotating shaft 310 away from the large gear 303 is rotatably connected to the inner wall of one side of the mounting frame 302. The end of the transmission shaft 311 away from the small gear 309 is rotatably connected to the inner wall of one side of the square valve seat 301, and the end of the rotating shaft 310 away from the large gear 303 is rotatably connected to the inner wall of one side of the mounting frame 302, thereby better improving the stability of the transmission shaft 311 and the rotating shaft 310 during rotation.

[0045] Working principle: When in use, the flash tank is installed on the central air conditioner through the bracket 106. When in use, the refrigerant is transported to the inside of the liquid storage tank 201 through the refrigerant pipe 202. When the refrigerant level in the tank body 101 is low, the square valve 307 is open. Then, when the refrigerant level in the tank body 101 rises, the float 305 is driven to rise, so that the float 305 drives the rotating shaft 310 to rotate through the float rod 304, and the rotating shaft 310 drives the large gear 303 to rotate, so that the large gear 303 and the small gear The wheel 309 is engaged, so that the pinion 309 drives the square valve 307 on the transmission shaft 311 to rotate, so that the square valve 307 blocks the through hole 308, and then the protective coating 5 is set. The corrosion-resistant coating 501 on the outer wall can effectively prevent the external environmental factors from corroding the outside of the equipment. At the same time, the corrosion-resistant coating 501, the polyurethane coating 502 and the ceramic coating 503 on the inner wall can effectively protect the surface of the inner wall of the tank body 101 that is in direct contact with the coolant to prevent corrosion caused by the chemical properties of the coolant or temperature changes.

[0046] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A flash drum for central air conditioning with a high-precision float valve, comprising a barrel assembly (1), characterized in that: The barrel assembly (1) comprises a tank body (101), a tank body flange (102), an end plate (103), a baffle (104), a bracket (106), a baffle plate (107), a cover plate (108) and a liquid outlet pipe (109). A liquid storage bag assembly (2) is provided at the upper end of the front end outer wall of the tank body (101). The liquid storage bag assembly (2) comprises a liquid storage tank (201). One side outer wall of the liquid storage tank (201) is connected to a refrigerant The outer wall of the refrigerant pipe (202) on one side away from the liquid storage tank (201) is fixedly connected to a square flange (203); the outer wall of the liquid storage tank (201) on one side away from the refrigerant pipe (202) is fixedly connected to a connecting pipe (204); the outer wall of the connecting pipe (204) on one side away from the liquid storage tank (201) is fixedly connected to an angle valve (205); and a float valve assembly (3) is provided inside the liquid storage tank (201); The float valve assembly (3) comprises a square valve seat (301), a transmission shaft (311) is provided inside the square valve seat (301), the shaft body of the transmission shaft (311) is fixedly connected to a square valve (307), one end of the transmission shaft (311) passes through the square valve seat (301) and is fixedly connected to a pinion (309), the rear end outer wall of the square valve seat (301) is fixedly connected to a mounting frame (302), a rotating shaft (310) is provided inside the mounting frame (302), and the shaft body of the rotating shaft (310) is fixedly connected to the square valve seat (301). A float rod (304) is fixedly connected, and a float (305) is fixedly connected to the lower surface of the float rod (304). One end of the rotating shaft (310) passes through the mounting frame (302) and is fixedly connected to a large gear (303). The front end of the inner wall of the liquid storage tank (201) is fixedly connected to a capsule partition (306). The inner wall and the outer wall of the tank body (101) are both provided with a protective coating (5), and the protective coating (5) includes a corrosion-resistant coating (501), a polyurethane coating (502), and a ceramic coating (503).

2. A flash drum for central air conditioning with a high-precision float valve according to claim 1, characterized in that: The tank flange (102) is fixed to the upper surface of the tank (101), the cover plate (108) is fixedly connected to the upper surface of the tank flange (102), the liquid outlet pipe (109) is arranged on one side of the upper surface of the cover plate (108), the two brackets (106) are respectively fixed to the middle and lower ends of the front end outer wall of the tank (101), the end plate (103) is fixed to the upper end of the rear end inner wall of the tank (101), the upper surface of the baffle (104) is fixedly connected to the end plate (103), and the blocking plate (107) is fixed to the lower end of the inner wall of the tank (101).

3. The flash drum for central air conditioning with a high-precision float valve according to claim 1, characterized in that: The corrosion-resistant coating (501) is sprayed on the inner wall and the outer wall of the tank body (101), the polyurethane coating (502) is arranged on the side of the inner wall corrosion-resistant coating (501) close to the tank body (101), and the ceramic coating (503) is arranged on the side of the polyurethane coating (502) away from the corrosion-resistant coating (501).

4. The flash drum for central air conditioning with a high-precision float valve according to claim 1, characterized in that: The lower end of the bracket (106) is provided with an inlet pipe (4), and the inlet pipe (4) is connected to the tank body (101).

5. The flash drum for central air conditioning with a high-precision float valve according to claim 1, characterized in that: A through hole (308) is provided in the middle of the body of the capsule partition (306), and the front end outer wall of the square valve (307) is tightly fitted with the rear end outer wall of the capsule partition (306).

6. The flash drum for central air conditioning with a high-precision float valve according to claim 1, characterized in that: The large gear (303) and the small gear (309) are meshed with each other.

7. The flash drum for central air conditioning with a high-precision float valve according to claim 1, characterized in that: A sight glass (105) is fixedly connected to an outer wall of one side of the tank body (101).

8. The flash drum for central air conditioning with a high-precision float valve according to claim 1, characterized in that: One end of the transmission shaft (311) away from the small gear (309) is rotatably connected to the inner wall of one side of the square valve seat (301), and one end of the rotation shaft (310) away from the large gear (303) is rotatably connected to the inner wall of one side of the installation frame (302).

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