Condenser with function of automatically controlling spraying water quantity

Abstract

The utility model discloses a condenser with a function of automatically controlling spraying water quantity, which relates to the field of heat exchangers and comprises an outer frame, a spraying water pipe is arranged at the top of the outer frame, a regulating valve is mounted at the front end of the spraying water pipe, a plurality of spraying heads are mounted on the spraying water pipe, and an evaporative cooling type coil pipe is arranged below the spraying water pipe. The spraying head is right opposite to the evaporative cooling type coil pipe; a filler layer is arranged below the evaporative cooling type coil pipe, a cooling water tank is arranged at the bottom of the filler layer, and cooling water sprayed by the spray header is collected by the cooling water tank; the cooling water tank is connected with the regulating valve through a pipeline, the pipeline is sequentially provided with a temperature sensor and a cooling water pump, the regulating valve is connected behind the cooling water pump, and the temperature sensor controls the opening degree of the regulating valve through a signal according to the temperature of cooling water in the pipeline so as to control the flow of water sprayed by the spraying head. The running efficiency of the condenser is effectively improved, and the running stability of the whole machine is improved.

Description

Technical Field

[0001] The utility model relates to the field of heat exchangers, in particular to a condenser with a function of automatically controlling the amount of spray water. Background Art

[0002] Evaporative cooling condensers are widely used in integrated chillers due to their low power consumption. Evaporative cooling condensers utilize water evaporation for heat transfer, making them more energy-efficient than water-cooled and air-cooled systems. However, their heat transfer performance is highly dependent on the wet-bulb temperature of the environment, which limits their operating temperature range.

[0003] When the ambient temperature is high, existing evaporative condensers maintain a constant spray water flow rate. Since the water circulation system is an open system, the cooling water temperature tends to the ambient temperature. This can easily lead to a high condensing temperature during the water circulation process, affecting the unit's cooling efficiency. Similarly, when the ambient temperature is low, the cooling water temperature is low. While maintaining a constant spray water flow rate, the heat exchange efficiency between the water and the evaporative cooling coil increases, but this can cause the condensing temperature to fall far below normal, potentially affecting the unit's normal operation. Therefore, maintaining the stability of evaporative cooling condensers in a changing environment and improving overall performance are key issues that need to be addressed. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a condenser with a function of automatically controlling the amount of spray water, thereby effectively improving the operating efficiency of the condenser and enhancing the stability of the entire machine operation.

[0005] The purpose of the utility model is achieved through the following technical solutions: this condenser with the function of automatically controlling the amount of spray water comprises an outer frame, a spray water pipe is arranged on the top of the outer frame, a regulating valve is installed at the front end of the spray water pipe, a plurality of spray heads are installed on the spray water pipe, an evaporative cooling coil is arranged below the spray water pipe, so that the spray head is directly facing the evaporative cooling coil; a packing layer is arranged below the evaporative cooling coil, a cooling water tank is arranged at the bottom of the packing layer, and the cooling water tank is used to collect the cooling water sprayed by the spray head; the cooling water tank is connected to the regulating valve through a pipeline, and a temperature sensor and a cooling water pump are sequentially arranged on the pipeline, so that the regulating valve is connected to the rear of the cooling water pump, and the temperature sensor controls the opening of the regulating valve through a signal according to the cooling water temperature in the pipeline, thereby controlling the water flow rate sprayed by the spray head.

[0006] As a further technical solution, a gas inlet and a liquid outlet are respectively provided on one side of the evaporative cooling coil, wherein the gas inlet is for the entry of high-temperature and high-pressure refrigerant, and the liquid outlet is for the outflow of condensed normal-temperature and high-pressure refrigerant, and the cooling water sprayed from the spray head directly contacts the tube bundle of the evaporative cooling coil.

[0007] As a further technical solution, an air inlet is provided on the outer frame above the spray water pipe, and the direction of the spray water sprayed from the sprinkler head is the same as the direction of the wind blown in from the air inlet, both vertically downward.

[0008] As a further technical solution, a partition is provided in the outer frame, and air outlets are provided on the partition at positions corresponding to the evaporative cooling coil and the packing layer, and air is ventilated outwards through an axial flow fan installed on the outer frame.

[0009] As a further technical solution, the spray water pipe is a polyvinyl chloride plastic pipe.

[0010] The beneficial effects of the utility model are:

[0011] 1. The temperature sensor automatically controls the regulating valve according to the water temperature at the cooling water tank outlet, changes the opening of the regulating valve, and thus adjusts the amount of cooling water sprayed out of the spray pipe, effectively improving the cooling effect of the unit;

[0012] 2. The cooling water sprayed from the sprinkler head directly contacts the tube bundle of the evaporative cooling coil, increasing the heat exchange area and effectively improving the heat exchange effect;

[0013] 3. Air inlets and outlets are respectively provided on the outer frame and the partition, and air circulation is formed by the axial flow fan to ensure the evaporative cooling effect;

[0014] 4. The sprinkler water pipe is made of polyvinyl chloride plastic pipe, which has high structural strength, corrosion resistance and longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model when the spraying water volume is small.

[0016] Figure 2 This is a schematic diagram of the structure of the utility model when the spraying water volume is large.

[0017] Explanation of the reference numerals: regulating valve 1, spray water pipe 2, spray head 3, evaporative cooling coil 4, temperature sensor 5, cooling water tank 6, cooling water pump 7, packing layer 8, partition 9, outer frame 10, axial flow fan 11. DETAILED DESCRIPTION

[0018] The following is a detailed introduction to the present invention with reference to the accompanying drawings:

[0019] Example: As shown in the attached Figure 1 、 2 As shown, the condenser with automatic control of the spray water volume includes a regulating valve 1, a spray water pipe 2, a spray head 3, an evaporative cooling coil 4, a temperature sensor 5, a cooling water tank 6, a cooling water pump 7, a packing layer 8, a partition 9, an outer frame 10 and an axial flow fan 11.

[0020] Reference Attachment Figure 1 A spray water pipe 2 is installed at the top of the outer frame 10. A regulating valve 1 is installed at the front end of the spray water pipe 2, so that the regulating valve 1 and the spray water pipe 2 are arranged coaxially. Several spray heads 3 are installed on the spray water pipe 2, and an evaporative cooling coil 4 is installed below the spray water pipe 2, so that the spray heads 3 are directly opposite the evaporative cooling coil 4. Preferably, the regulating valve 1, the spray water pipe 2, and the spray heads 3 are at least four components on the evaporative cooling coil 4, increasing the coil area sprayed by the spray heads 3 and improving the condensation effect. The spray water pipe 2 is made of polyvinyl chloride plastic pipe, which has high structural strength, corrosion resistance, and a longer service life.

[0021] Furthermore, a packing layer 8 is provided below the evaporative cooling coil 4, and a cooling water tank 6 is provided at the bottom of the packing layer 8, and the cooling water tank 6 is used to collect the cooling water sprayed from the sprinkler head 3. A cooling water outlet pipeline is provided at the outlet of the cooling water tank 6 and connected to the regulating valve 1 (spraying water pipe 2). A temperature sensor 5 and a cooling water pump 7 are provided on the cooling water outlet pipeline in sequence, and the regulating valve 1 is connected behind the cooling water pump 7. The temperature sensor 5 is located between the cooling water pump 7 and the outlet of the cooling water tank 6, and the cooling water pump 7 transports the cooling water in the cooling water tank 6 to the regulating valve 1. The temperature sensor 5 monitors the cooling water temperature of the cooling water outlet pipeline (the outlet of the cooling water tank 6) in real time, and controls the opening of the regulating valve 1 through a signal, thereby controlling the water flow rate sprayed from the sprinkler head 3. Figure 1 and Figure 2 Different water spraying amounts of the sprinkler head 3 are shown respectively.

[0022] Furthermore, a gas inlet and a liquid outlet are respectively provided on one side of the evaporative cooling coil 4, wherein the gas inlet is for the entry of high-temperature and high-pressure refrigerant, and the liquid outlet is for the outflow of condensed normal-temperature and high-pressure refrigerant. The cooling water sprayed by the spray head 3 directly contacts the tube bundle of the evaporative cooling coil 4, thereby increasing the heat exchange area and effectively improving the heat exchange effect.

[0023] An air inlet is provided on the outer frame 10 above the spray water pipe 2. The direction of the spray water sprayed by the spray head 3 is the same as the direction of the wind blowing in from the air inlet, both vertically downward. At the same time, a partition 9 is provided inside the outer frame 10. Air outlets are provided on the partition 9 at positions corresponding to the evaporative cooling coil 4 and the packing layer 8. The air is blown outward by the axial flow fan 11 installed on the outer frame 10. The air flow direction is as follows: Figure 1 、 2 Indicated by the arrow.

[0024] The working process of this utility model:

[0025] When the unit is in normal cooling operation, the cooling water in the cooling water tank 6 driven by the cooling water pump 7 will be continuously sprayed through the regulating valve 1, the spray pipe 2, and the spray head 3. After the cooling water drips through the evaporative cooling coil 4 for evaporation and heat exchange, most of the cooling water will continue to drip down to the packing layer 8 below the evaporative cooling coil 4. After heat exchange in the packing layer 8, the cooling water enters the cooling water tank 6, and the cycle continues.

[0026] The temperature sensor 5 can change the opening of the regulating valve 1 according to the high or low temperature of the cooling water sensed. Normally, when the ambient temperature is low and the cooling water temperature is much lower than the current condensing temperature, the regulating valve 1 is adjusted to reduce the water flow passing through it, ensuring that the condensing temperature is steadily reduced and the stability of the unit operation is guaranteed. Similarly, when the cooling water temperature is at the normal operating temperature, the regulating valve 1 can be adjusted to increase the water flow passing through it to ensure the heat exchange efficiency. When the ambient temperature is high, the cooling water pump 7 and the regulating valve 1 can be turned on at the same time to ensure that the condensing temperature does not increase sharply. Only when the unit is running day and night and the ambient temperature changes greatly, the program can be judged simultaneously based on the condensing temperature and the cooling water temperature detected by the temperature sensor 5, and then the water flow passing through the regulating valve 1 can be adjusted.

[0027] It is understandable that for those skilled in the art, any equivalent replacement or change of the technical solution and the concept of the utility model should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A condenser with automatic control of spray water volume, characterized in that: The invention comprises an outer frame (10), a spray water pipe (2) is arranged on the top of the outer frame (10), a regulating valve (1) is installed at the front end of the spray water pipe (2), a plurality of spray heads (3) are installed on the spray water pipe (2), an evaporative cooling coil (4) is arranged below the spray water pipe (2), and the spray heads (3) are directly opposite the evaporative cooling coil (4); a packing layer (8) is arranged below the evaporative cooling coil (4), a cooling water tank (6) is arranged at the bottom of the packing layer (8), and the cooling water tank (6) is used to collect the cooling water sprayed by the spray heads (3); the cooling water tank (6) is connected to the regulating valve (1) through a pipeline, and a temperature sensor (5) and a cooling water pump (7) are sequentially arranged on the pipeline, so that the regulating valve (1) is connected to the rear of the cooling water pump (7); the temperature sensor (5) controls the opening of the regulating valve (1) through a signal according to the cooling water temperature in the pipeline, thereby controlling the water flow rate sprayed by the spray heads (3).

2. The condenser with automatic control of spray water volume according to claim 1, characterized in that: A gas inlet and a liquid outlet are respectively provided on one side of the evaporative cooling coil (4), wherein the gas inlet is for the entry of high-temperature and high-pressure refrigerant, and the liquid outlet is for the exit of condensed normal-temperature and high-pressure refrigerant, and the cooling water sprayed by the spray head (3) directly contacts the tube bundle of the evaporative cooling coil (4).

3. The condenser with automatic control of spray water volume according to claim 1, characterized in that: An air inlet is provided on the outer frame (10) above the spray water pipe (2), and the direction of the spray water sprayed out by the spray head (3) is the same as the direction of the wind blown in from the air inlet, both vertically downward.

4. The condenser with automatic control of spray water volume according to claim 3, characterized in that: A partition (9) is provided inside the outer frame (10), and air outlets are provided on the partition (9) at positions corresponding to the evaporative cooling coil (4) and the filler layer (8), and air is blown outwards through an axial flow fan (11) installed on the outer frame (10).

5. The condenser with automatic control of spray water volume according to claim 1, characterized in that: The spray water pipe (2) is a polyvinyl chloride plastic pipe.

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