Air bag type buffer water tank structure

Abstract

The utility model discloses an air bag type buffer water tank structure which comprises a tank body, an air bag assembly is arranged in the tank body, an electric heating assembly is arranged on the tank body and used for preheating a system in extremely cold weather, one side of the tank body is connected with a water supplementing opening, a circulating water inlet and a sewage draining opening through pipelines, and the water supplementing opening is communicated with the circulating water inlet. An electromagnetic valve is arranged on the water replenishing port pipeline, a liquid pressure sensor is arranged on the circulating water inlet pipeline, the bottom end of the tank body is connected with a circulating pump through a connecting pipeline, circulating water or a medium flows out through the connecting pipeline, the circulating pump and the circulating water outlet, and the tank body, the circulating pump and the automatic water replenishing electromagnetic valve are integrally arranged in the shell. The installation efficiency is improved, and the material cost is reduced; the pressure of the system is relieved through the air bag, pressure matching of the system is automatically detected through the liquid pressure sensor and the gas pressure sensor, it is ensured that the system is safer, more stable and more reliable during operation, and the product can also be normally used in extremely cold weather by arranging the electric heating assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heating and ventilation, especially a kind of air bag type buffer water tank structure. BACKGROUND

[0002] Buffer water tank and expansion tank are system components in the water system air conditioner of heating and ventilation industry, and conventional way is to install buffer water tank and expansion tank directly on pipeline, as shown in Figure 1 System connection pipeline is more, installation cost is high, efficiency is low, and it can be frozen in cold regions in the north when being installed on pipeline, and system failure rate is relatively high.China patent with publication number CN220911550U discloses a kind of buffer water tank for air source heat pump system, system pressure is balanced by installing high-pressure air bag assembly on the top of tank body, but in extremely cold and other harsh environments, water in water tank can freeze, leading to slow system start or unable to operate normally, when air bag pressure is not enough or damaged, host computer cannot timely remind, affecting system operation reliability. SUMMARY

[0003] The utility model aims at solving above-mentioned technical problem, provide a kind of air bag type buffer water tank structure.

[0004] To achieve the above technical purpose, reach the above technical requirement, the technical scheme that the utility model adopts is as follows:an air bag type buffer water tank structure, including tank body, gas bag assembly is arranged in the tank body, to balance system pressure, electric heating assembly is arranged on the tank body, preheating system in extremely cold weather, water inlet, circulating water inlet, blow-off port are connected by pipeline and are arranged on the one side of the tank body, solenoid valve is arranged on the water inlet pipeline, liquid pressure sensor is arranged on the circulating water inlet pipeline, exhaust port is arranged at the top of the tank body, circulating pump is connected by connecting pipeline and is connected to the bottom of the tank body, circulating water or medium flows out by connecting pipeline, circulating pump, circulating water outlet, tank body, circulating pump, automatic water replenishment solenoid valve are integrally arranged in shell.

[0005] Preferably, the air bag assembly includes an air bag, which is fixed to the inside of the lower end of the tank body by a flange plate, gas is filled into the air bag through a gas inlet, and the air pressure in the air bag is detected by a gas pressure sensor.

[0006] Preferably, the air bag is a rubber air bag.

[0007] Preferably, the electric heating assembly includes a flame-retardant junction box, and an electric heating tube and a temperature limiter are arranged in the flame-retardant junction box.

[0008] Preferably, the tank body includes an inner container and an outer container, and a polyurethane insulation layer is arranged between the inner container and the outer container.

[0009] Preferably, the bottom of the shell is provided with a foot, and one side of the shell is provided with a hanger, which can be installed on the wall or on the ground.

[0010] Compared with the conventional structure, the utility model has the beneficial effects that:

[0011] 1. The integrated buffer water tank structure, pre-foaming metal tank body, circulating pump and automatic water supplementing battery valve are integratedly installed in the shell, and the shell can be installed on the wall or on the ground, so that the use is convenient, the installation efficiency of workers is improved, and the material cost is reduced.

[0012] 2. The rubber air bag is arranged in the tank body, the medium temperature and pressure are increased when the system is operated, the air bag relieves the system pressure, and the system operation stability is protected.

[0013] 3. The liquid pressure sensor and the gas pressure sensor automatically detect the pressure matching of the system, the relieving effect of the air bag on the system pressure increase is ensured, the system operation is more safe, stable and reliable.

[0014] 4. In extremely cold weather, the main system detects the water temperature, and when the water temperature is lower than the set value, the electric heating assembly is started in advance to defrost and deice, so that the product can be normally used in extremely cold weather, the system operation reliability is improved, and the system failure rate is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of the utility model;

[0016] Figure 2 It is a side view structural schematic diagram of the utility model;

[0017] In the drawing: 1. Tank body, 1-1. Heat preservation layer, 2. Air bag assembly, 2-1. Air bag, 2-2. Gas pressure sensor, 2-3. Inflation port, 3. Connection pipeline, 4. Circulating water outlet, 5. Circulating pump, 6. Pollutant discharge port, 7. Electric heating assembly, 7-1. Flame-retardant junction box, 7-2. Electric heating pipe, 7-3. Temperature limiter, 8. Circulating water inlet, 9. Liquid pressure sensor, 10. Water supplementing port, 11. Electromagnetic valve, 12. Exhaust port, 13. Shell, 14. Hanger, 15. Foot. DETAILED DESCRIPTION

[0018] The utility model will be further described below.

[0019] Refer to the attached Figures 1-2The utility model provides an air bag type buffering water tank structure, including the jar body 1, gasbag assembly 2 is arranged in the jar body 1 to balance system pressure, the jar body 1 is provided with electric heating assembly 7, and the system is preheated in extremely cold weather, one side of the jar body 1 is connected with water supplementing mouth 10, circulating water inlet 8, blow-off port 6 through pipeline, the water supplementing mouth 10 pipeline is provided with solenoid valve 11, the circulating water inlet 8 pipeline is provided with liquid pressure sensor 9, the jar body 1 top is provided with exhaust port 12, the jar body 1 bottom is connected with circulating pump 5 through connecting pipeline 3, and circulating water or medium flows out through connecting pipeline 3, circulating pump 5, circulating water outlet 4, and the jar body 1, circulating pump 5, automatic water supplementing solenoid valve 11 are integrally arranged in shell 13.

[0020] In the preferred embodiment, the gasbag assembly 2 includes a gasbag 2-1, which is fixed inside the lower end of the jar body 1 through a flange, and the gasbag 2-1 is filled with gas through a gas inlet 2-3, and the gas pressure in the gasbag 2-1 is detected by a gas pressure sensor 2-2.

[0021] In the preferred embodiment, the gasbag 2-1 is a rubber gasbag.

[0022] In the preferred embodiment, the electric heating assembly 7 includes a flame-retardant junction box 7-1, which is provided with an electric heating tube 7-2 and a temperature limiter 7-3.

[0023] In the preferred embodiment, the jar body 1 includes an inner container and an outer container, and a polyurethane heat preservation layer 1-1 is arranged between the inner container and the outer container.

[0024] In the preferred embodiment, the bottom of the shell 13 is provided with a footing 15, and one side of the shell 13 is provided with a hanger 14, which can be installed on the wall or on the ground.

[0025] In the specific implementation, the airtight metal jar body is installed in the shell after being pre-foamed by using a corrosion prevention process, and the circulating pump and the automatic water supplementing solenoid valve are integrally installed in the shell. Liquid medium is added in the metal jar body, 0.15-0.2 Pa of nitrogen is filled in the gasbag, the gasbag occupies a volume of 4 L in the jar body, water or medium is filled in the metal jar body, and the working pressure is 0.5 MPa. When the system is running and heating, the pressure will increase, the water temperature will increase, the pressure in the jar body will increase, and the gasbag will be squeezed at the same time. After the gasbag is squeezed, the expansion of the gasbag absorbs the water, which has a buffering effect on the system and stabilizes the system pressure. When the pressure in the jar body reaches 1.0 MPa, the pressure of the gasbag will also reach 1.0 MPa at the same time, and the expansion in the jar body increases by 8 L. At this time, the system is at the limit.

[0026] In extremely cold weather, the host system detects the water temperature, and if it is below the set value (5℃), the metal tank body is pre-started, the circulating pump 5 starts to work, defrosting and deicing are carried out, and when the set temperature (65℃) is reached, the heating is automatically stopped. When the temperature is too high, the thermostat 7-3 will automatically cut off the power. While the system is running, the medium pressure is detected by the liquid pressure sensor 9. When the pressure is not enough, the electromagnetic valve 11 is opened to automatically add water. The gas pressure in the air bag 2-1 is detected by the gas pressure sensor 2-2. If the air bag pressure is not enough or damaged, the host will remind to ensure that the water pressure in the tank and the air pressure in the air bag reach the value, ensuring that the system runs effectively.

[0027] The above embodiments of the utility model are only clearly illustrated examples made by the utility model, but not used to limit the protection scope of the utility model, and all equivalent technical solutions also belong to the scope of the utility model, and the patent protection scope of the utility model should be limited by each claim.

Claims

1. An air bag cushion water tank structure comprising a tank body (1), characterized by: The tank body (1) is provided with an air bag assembly (2) to balance the system pressure, the tank body (1) is provided with an electric heating assembly (7), the system is preheated in extremely cold weather, one side of the tank body (1) is connected with a water supplement port (10), a circulating water inlet (8) and a sewage outlet (6) through pipelines, the water supplement port (10) is provided with an electromagnetic valve (11), the circulating water inlet (8) is provided with a liquid pressure sensor (9), the tank body (1) is provided with an exhaust port (12) at the top end, the tank body (1) is connected with a circulating pump (5) through a connecting pipeline (3), circulating water or medium flows out through the connecting pipeline (3), the circulating pump (5) and the circulating water outlet (4), and the tank body (1), the circulating pump (5) and the electromagnetic valve (11) are integrally arranged in a shell (13).

2. The cushioned water tank structure according to claim 1, wherein: The air bag assembly (2) comprises an air bag (2-1), the air bag (2-1) is fixed to the inner side of the lower end of the tank body (1) through a flange plate, gas is filled into the air bag (2-1) through a gas inlet (2-3), and the air pressure in the air bag (2-1) is detected through a gas pressure sensor (2-2).

3. The cushioned water tank structure according to claim 2, wherein: The air bag (2-1) is a rubber air bag.

4. The cushioned water tank structure according to claim 1, wherein: The electric heating assembly (7) comprises a flame-retardant junction box (7-1), the flame-retardant junction box (7-1) is provided with an electric heating pipe (7-2) and a temperature limiter (7-3).

5. The cushioned water tank structure according to claim 1, wherein: The tank body (1) comprises an inner container and an outer container, and a polyurethane heat preservation layer (1-1) is arranged between the inner container and the outer container.

6. The cushioned water tank structure according to claim 1, wherein: The shell (13) is provided with a ground foot (15) at the bottom and a hanger (14) at one side, so that the shell (13) can be installed on the wall or on the ground.

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