Circulating cleaning device for condenser

Abstract

The circulating cleaning device for the condenser comprises a chemical barrel, a feeding pump, a PH instrument, an acid pickling cylinder, an acid pickling pump, a discharging pipe, a discharging valve and a controller, a water inlet pipe is installed at the liquid inlet end of the condenser of a refrigerating machine, a cooling water inlet valve and a liquid inlet valve are installed on the water inlet pipe, a water outlet pipe is installed at the liquid outlet end of the condenser of the refrigerating machine, and a cooling water outlet valve is installed on the liquid outlet pipe. A cooling water outlet valve and a liquid outlet valve are respectively arranged on the water outlet pipe, a circulating cleaning device for a condenser is arranged between the liquid inlet valve and the liquid outlet valve through a pipeline, a medicament barrel is communicated with an acid pickling cylinder through a feeding pump, a PH instrument is arranged on the acid pickling cylinder, one end of an acid pickling pump is communicated with the acid pickling cylinder, and the other end of the acid pickling pump is connected with the liquid inlet valve through a pipeline. The liquid outlet valve is connected with the pickling cylinder through a pipeline, the lower part of the pickling cylinder is provided with a discharge pipe, the discharge pipe is provided with a discharge valve, and the controller is respectively connected with the feeding pump, the PH instrument, the pickling pump and the discharge valve through information lines.

Description

Technical Field

[0001] The utility model relates to a circulation cleaning device, in particular to a circulation cleaning device for a condenser. Background Art

[0002] The condenser of the YORK H centrifugal chiller used in the cigarette factory is a horizontal shell and tube condenser. Due to the structural limitations of this type of chiller, only the cooling tower in the chiller circulating cooling water system is open. Therefore, the agent can only be put into the cooling tower and the chiller cooling water pump is turned on to circulate the agent in the entire system for cleaning. In order to allow the agent to circulate in the condenser, it is necessary to circulate the cooling water in the entire system and turn on the cooling water pump.

[0003] The above-mentioned cycle cleaning has the following shortcomings:

[0004] 1. Energy waste:

[0005] During the cleaning process, in order to allow the reagent to circulate in the condenser, 20 tons of water needs to be circulated in the entire system, and the cooling water pump needs to be turned on during operation, resulting in a large amount of energy waste.

[0006] 2. Poor economic efficiency:

[0007] During the cleaning of the condenser, chemicals need to be added. According to the ratio of chemicals to water, a large amount of chemicals need to be added, and after the cleaning, all the chemicals in the system need to be drained and refilled. The cooling water pump has a large power, and the costs of chemicals, water, and electricity are high.

[0008] 3. Time limitation:

[0009] Since cleaning requires the entire cooling water circulation system to be running, cleaning and maintenance work can only be carried out during the Spring Festival and National Day holidays when the factory stops production. In addition, the circulation process of the chemical in the system is long. It takes 24 hours to clean a single refrigerator, and a lot of time to clean multiple refrigerators. Therefore, the cleaning and maintenance of the condenser is time-limited.

[0010] At present, the YORK H centrifugal chillers used in cigarette factories need to be pickled once a year to remove scale in the condensers. In order to improve the energy waste and poor economy in the cleaning of refrigerator condensers, and to solve the problem that the cleaning of refrigerator condensers can only be carried out during the shutdown period, which consumes a lot of manpower and time. The air compressor and air conditioning repair team of the power workshop installed valves at the inlet and outlet of the cooling water of the refrigerator condenser, installed a pH sensor probe inside the condenser, and installed a drain valve at the valve and the pipe opening at both ends of the condenser, so that the cooling water in the condenser can circulate in the condenser and the special pickling tank for cleaning through the external pipeline. Summary of the invention

[0011] In order to overcome the shortcomings of the existing conventional technology, the purpose of the utility model is to provide a circulating cleaning device for a condenser.

[0012] In order to achieve the invention purpose of the utility model, the utility model adopts the following technical solutions:

[0013] The utility model discloses a circulation cleaning device for a condenser, which comprises: a reagent barrel, a feed pump, a pH meter, a pickling cylinder, a pickling pump, a discharge pipe, a discharge valve and a controller. The liquid inlet end of the refrigerator condenser is provided with a water inlet pipe, on which a cooling water inlet valve and a liquid inlet valve are respectively provided, the liquid outlet end of the refrigerator condenser is provided with a water outlet pipe, on which a cooling water outlet valve and a liquid outlet valve are respectively provided, and the circulation cleaning device for the condenser is installed between the liquid inlet valve and the liquid outlet valve through a pipeline, wherein: the reagent barrel is communicated with the pickling cylinder through the feed pump, the pH meter is installed on the pickling cylinder, one end of the pickling pump is communicated with the pickling cylinder, and the other end is connected to the liquid inlet valve through a pipeline, the liquid outlet valve is connected to the pickling cylinder through a pipeline, a discharge pipe is installed at the lower part of the pickling cylinder, and a discharge valve is installed on the discharge pipe, and the controller is respectively connected to the feed pump, the pH meter, the pickling pump and the discharge valve through an information line.

[0014] The utility model provides a circulating cleaning device for a condenser, wherein the liquid inlet valve and the liquid outlet valve are steam traps.

[0015] The utility model discloses a circulating cleaning device for a condenser, wherein the pickling pump is communicated with the bottom of the pickling tank.

[0016] The utility model discloses a circulating cleaning device for a condenser, wherein: a pipeline connected to the liquid outlet valve is communicated with the upper part of the pickling tank.

[0017] The circulating cleaning device for condenser of the utility model has the following advantages and effects:

[0018] 1. Save energy:

[0019] The circulating water volume required for the whole system to circulate the reagent is about 20t. In order to achieve the cleaning effect, the ratio of reagent to water is 3:100. Therefore, the amount of reagent required for cleaning a single unit is 600L. The cooling water pump needs to be turned on with a rated power of 160kW and run for 24 hours, with a power consumption of 3840kW·h.

[0020] After the transformation, the amount of water circulating in the condenser is 2t, the required amount of medicine is 60L, and only the pickling pump needs to be turned on. The rated power of the pickling pump is 4kW, the running time is 4 hours, and the power consumption is 16kW·h.

[0021] 2. Cost saving:

[0022] The current electricity price of Kunming Cigarette Factory is 0.46 yuan / kW·h, the water price is 4 yuan / t, and the chemical price is 4 yuan / L. After the transformation, the factory saves 72 yuan in water, 1759.04 yuan in electricity, and 2160 yuan in chemical costs. The total cost savings for a single refrigerator cleaning is 3991.04 yuan.

[0023] 3. Easy and stable cleaning

[0024] After the transformation, the chemical solution only needs to circulate in the refrigerator condenser and the pickling tank, which will not affect the power cooling water system. A single refrigerator can be cleaned without stopping other refrigerators. In addition, the pH meter will monitor the pH value of the chemical solution inside the condenser at any time to prevent excessive addition of chemicals from damaging the condenser, ensuring the safety and stability of the equipment without affecting factory production, greatly improving the stability of production support, and because the cycle is shortened, it saves manpower and time, and cleaning and maintenance become quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a forward schematic diagram of a circulating cleaning device for a condenser according to the utility model.

[0026] exist Figure 1 Among them, label 1 is a reagent barrel; label 2 is a feed pump; label 3 is a pH meter; label 4 is a pickling tank; label 5 is a pickling pump; label 6 is a cooling water inlet valve; label 7 is a liquid inlet valve; label 8 is a refrigerator condenser; label 9 is a cooling water outlet valve; label 10 is a liquid outlet valve; label 11 is a discharge pipe; label 12 is a discharge valve; label 13 is a water outlet pipe; label 14 is a controller; label 15 is a water inlet pipe. DETAILED DESCRIPTION

[0027] like Figure 1 As shown, the liquid inlet end of the refrigerator condenser 8 is equipped with an inlet pipe 15, on which a cooling water inlet valve 6 and a liquid inlet valve 7 are respectively installed, and the liquid outlet end of the refrigerator condenser 8 is equipped with an outlet pipe 13, on which a cooling water outlet valve 9 and a liquid outlet valve 10 are respectively installed, and a circulating cleaning device for the condenser is installed between the above-mentioned inlet valve 7 and the liquid outlet valve 10 through a pipeline, and the inlet valve 7 and the liquid outlet valve 10 are steam traps.

[0028] The utility model discloses a circulating cleaning device for a condenser, comprising: a reagent barrel 1, a feed pump 2, a pH meter 3, a pickling cylinder 4, a pickling pump 5, a discharge pipe 11, a discharge valve 12 and a controller 14. The reagent barrel 1 is communicated with the pickling cylinder 4 through the feed pump 2, the pH meter 3 is mounted on the pickling cylinder 4, one end of the pickling pump 5 is communicated with the bottom of the pickling cylinder 4, and the other end is connected to the liquid inlet valve 7 through a pipeline, the liquid outlet valve 10 is connected to the upper part of the pickling cylinder 4 through a pipeline, a discharge pipe 11 is mounted at the lower part of the pickling cylinder 4, a discharge valve 12 is mounted on the discharge pipe 11, and the controller 14 is respectively connected to the feed pump 2, the pH meter 3, the pickling pump 5 and the discharge valve 12 through information lines.

[0029] When cleaning and maintaining the refrigerator condenser, after the refrigerator condenser 8 is shut down, close the cooling water inlet valve 6 located at the water inlet pipe 15, and close the cooling water outlet valve 9 located at the water outlet pipe 13. Open the controller 14, then open the liquid inlet valve 7 and the liquid outlet valve 10, connect the above-mentioned liquid inlet valve 7 and the liquid outlet valve 10 to the pickling tank 4, and connect the pickling tank 4 to the pickling pump 5, so that the reagent and cooling water can be mixed in the pickling tank 4, and then pumped into the refrigerator condenser 8 through the pickling pump 5 for circulation cleaning. The pH meter 3 monitors the pH value of the medicine solution inside the refrigerator condenser 8 in real time during the cleaning process. During cleaning and maintenance, the pH value of the medicine solution should be stable in the range of 1.0-4.0. When the pH value is too high, the controller 14 receives the information and automatically opens the set dosing pump 2 to put the medicine into the medicine solution circulation. When the pH value is too low, the controller 14 will control the cooling water system water replenishment pump to add soft water to the medicine solution circulation to ensure that the pH value during the cleaning process is always within the range of ensuring stable and efficient cleaning. After the cleaning is completed, the liquid unloading valve 12 is opened and the cleaning liquid is discharged. After the cleaning liquid is completely discharged, the liquid inlet valve 7 and the liquid outlet valve 10 are closed, and the refrigerator condenser 8 is cleaned.

[0030] The above is only a specific implementation of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present utility model.

Claims

1. A circulating cleaning device for a condenser, comprising: A reagent barrel (1), a feed pump (2), a pH meter (3), a pickling tank (4), a pickling pump (5), a discharge pipe (11), a discharge valve (12) and a controller (14); a liquid inlet end of a refrigerator condenser (8) is provided with a water inlet pipe (15), a cooling water inlet valve (6) and a liquid inlet valve (7) are respectively provided on the water inlet pipe (15); a liquid outlet end of the refrigerator condenser (8) is provided with a water outlet pipe (13), a cooling water outlet valve (9) and a liquid outlet valve (10) are respectively provided on the water outlet pipe (13); a circulating cleaning device for the condenser is provided on the above-mentioned liquid inlet valve (7) and the liquid outlet valve (10) through a pipeline. The invention relates to a liquid pickling tank (4) and a liquid discharging device (10), wherein the reagent barrel (1) is connected to the pickling tank (4) through a feed pump (2), a pH meter (3) is installed on the pickling tank (4), one end of the pickling pump (5) is connected to the pickling tank (4), and the other end is connected to the liquid inlet valve (7) through a pipeline, the liquid outlet valve (10) is connected to the pickling tank (4) through a pipeline, a discharge pipe (11) is installed at the lower part of the pickling tank (4), and a discharge valve (12) is installed on the discharge pipe (11), and a controller (14) is connected to the feed pump (2), the pH meter (3), the pickling pump (5) and the discharge valve (12) through information lines.

2. The circulating cleaning device for a condenser according to claim 1, characterized in that: The liquid inlet valve (7) and the liquid outlet valve (10) are steam traps.

3. The circulating cleaning device for a condenser according to claim 2, characterized in that: The pickling pump (5) is communicated with the bottom of the pickling tank (4).

4. The circulating cleaning device for a condenser according to claim 3 is characterized in that: The pipeline connected to the liquid outlet valve (10) is communicated with the upper part of the pickling tank (4).

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