Automatic oil discharge system of ammonia separation plate heat exchanger

Abstract

The utility model relates to an ammonia separation plate heat exchanger automatic oil discharge system which comprises a horizontal oil collector, an oil collecting barrel, a water bath device, a waste oil barrel and a control module, heating, oil discharge, oil inlet and ammonia gas recovery are completed through the control module, manual participation is not needed in the whole process, the oil discharge process runs in a full-automatic mode, and the production efficiency is improved. And sewage can be conveniently and timely discharged through the first sewage discharging pipeline and the second sewage discharging pipeline, and internal cleanness is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of hot presses, and in particular to an automatic oil drain system for an ammonia separator plate changer. Background Art

[0002] Currently, ammonia refrigeration systems in factories, particularly the oil drain systems for ammonia distributors, rely on manual oil drainage. To maintain heat exchange efficiency during normal operation, operators are required to regularly drain the oil from the ammonia distributors. Manual operation presents several challenges: high workload, low efficiency, significant energy loss, and potential health risks for workers. Utility Model Content

[0003] The embodiment of the present application provides an automatic oil drainage system for an ammonia plate changer to solve the technical problems in the related art such as large workload and low efficiency, large energy loss, certain damage to workers' health and safety risks.

[0004] An ammonia distribution plate automatic oil drainage system is provided, comprising:

[0005] A horizontal oil collector is connected to the oil collector through an oil drain pipe. An electric heater is provided in the horizontal oil collector. An air return pipe, an ammonia extraction pipe and a safety pipe are respectively provided on the horizontal oil collector;

[0006] An oil collecting barrel is communicated with the horizontal oil collector, and an electronic weighing component is provided at the lower end of the oil collecting barrel.

[0007] a water bath connected to the oil collecting barrel, the water bath also being connected to an external water supply system, and the water bath also being provided with a first sewage discharge pipe;

[0008] The waste oil barrel is connected to the oil collecting barrel through an oil discharge pipeline, and the oil discharge pipeline is also connected to a second sewage discharge pipeline.

[0009] Wherein, each pipeline and conduit is provided with a solenoid valve, and the oil discharge system further comprises a control module, and the control module is electrically connected to the electronic weighing component and the solenoid valve.

[0010] In some embodiments, the horizontal oil collector is further provided with a magnetic flap level gauge.

[0011] In some embodiments, an oil pump is provided on the oil discharge pipeline.

[0012] In some embodiments, the water bath is connected to an overflow pipe.

[0013] The beneficial effects of the technical solution provided by this application include:

[0014] The present application provides an automatic oil drainage system for an ammonia plate exchanger, comprising a horizontal oil collector, an oil collecting barrel, a water bath, a waste oil barrel and a control module. The control module completes heating, oil drainage, oil intake and ammonia recovery. The entire process does not require manual participation, and the oil drainage process is fully automatic. The first sewage pipe and the second sewage pipe can conveniently and promptly discharge sewage to ensure internal cleanliness. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. By referring to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0016] Figure 1 This is a schematic structural diagram of an embodiment of the present application;

[0017] In the figure: 1. Horizontal oil collector; 11. Electric heater; 12. Magnetic flap level gauge; 1a. Return air line; 1b. Ammonia extraction line; 1c. Safety line; 2. Oil collecting barrel; 21. Electronic weighing assembly; 22. Oil pump; 2a. Oil drain line; 2b. Second sewage drain line; 3. Water bath; 3a. First sewage drain line; 3b. Overflow pipe; 4. Waste oil barrel; 100. Oil drain line. DETAILED DESCRIPTION

[0018] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0019] This embodiment provides an automatic oil drainage system for an ammonia distribution plate exchanger to solve the technical problems in related technologies such as large workload and low efficiency, large energy loss, certain damage to workers' health and safety risks.

[0020] See Figure 1 , provides an ammonia plate exchange automatic oil drainage system, including a horizontal oil collector 1, an oil collecting barrel 2, a water bath 3, a waste oil barrel 4 and a control module.

[0021] The horizontal oil collector 1 is connected to the oil collector in the original oil drainage system via an oil drainage pipe 100. An electric heater 11 is provided within the horizontal oil collector 1. Heating by the electric heater 11 rapidly evaporates liquid ammonia into gaseous ammonia. A temperature sensor can be provided within the horizontal oil collector 1 and electrically connected to the electric heater 11 and a control module. Specifically, the temperature sensor collects data from the horizontal oil collector 1 and transmits it to the control module. The control module then activates the electric heater 11 to heat the ammonia oil within. Once the temperature reaches a certain level, the control module deactivates the electric heater 11. This reciprocating cycle maintains a stable temperature within the horizontal oil collector 1, facilitating rapid evaporation of the liquid ammonia into gaseous ammonia.

[0022] The horizontal oil collector 1 is equipped with a return air line 1a, an ammonia extraction line 1b, and a safety line 1c. After the ammonia liquid evaporates into ammonia gas, it returns to the return air line 1a. Through the return air line 1a, the ammonia gas can re-enter the refrigeration system, thereby maintaining the system's pressure and temperature stability. This is crucial to ensuring the refrigeration effect and the continuity of the system operation.

[0023] Although the return air line 1a can effectively recover some ammonia, in actual operation, due to various reasons (such as improper operation, equipment aging, leakage, etc.), some ammonia may not be completely recovered through the return air line. Therefore, the ammonia extraction line 1b is set up to further ensure the complete removal of ammonia and prevent ammonia accumulation in the system, thereby ensuring safe and stable operation of the system.

[0024] The safety line 1c is mainly used to prevent the internal pressure of the horizontal oil collector 1 from being too high, and can exhaust the gas in time to stabilize the internal pressure.

[0025] The oil collecting barrel 2 is connected to the horizontal oil collector 1 and is used to collect the oil in the horizontal oil collector 1 into the oil collecting barrel 2. An electronic weighing assembly 21 is set at the lower end of the oil collecting barrel 2 to measure the weight of the waste oil in the oil collecting barrel 2. When a certain weight is reached, the electronic weighing assembly 21 feeds back a signal to the control module, and the control module closes the solenoid valve on the pipe connecting the oil collecting barrel 2 and the horizontal oil collector 1. During this stage, ammonia gas will also be produced in the oil collecting barrel 2, and the ammonia gas will enter the water bath 3. The water bath 3 is connected to an external water supply system, and the water in the water bath 3 will react with the ammonia gas, causing the ammonia gas to dissolve in the water.

[0026] The waste oil barrel 4 is connected to the oil collecting barrel 2 through an oil discharge pipeline 2a. When the ammonia oil in the oil collecting barrel 2 reaches a certain weight, it is discharged into the waste oil barrel through the oil discharge pipeline 2a.

[0027] In the present application, solenoid valves are provided on each pipeline and conduit, and the control module is electrically connected to the electronic weighing component 21, the electric heater 11 and the solenoid valve. The control module can quickly connect and block the pipelines and conduits, and the entire oil drainage process runs fully automatically, achieving true unattended automatic oil drainage.

[0028] It should be understood that the control module in this application adopts PLC control, which is a prior art, so the control principle will not be explained in detail here.

[0029] In addition, in the present application, a first sewage pipe 3a is further provided on the water bath 3, and a second sewage pipe 2b is further connected to the oil drain line 2a.

[0030] In some possible embodiments, when impurities are mixed into the horizontal oil collector 1, or when the entire system needs to be cleaned, it is necessary to clean the horizontal oil collector 1, the oil collecting barrel 2, the water bath 3 and the ammonia oil in the related pipelines. Therefore, a first sewage pipe 3a is also provided on the water bath 3, and a second sewage pipe 2b is also connected to the oil discharge pipeline 2a. The sewage can be discharged conveniently and promptly through the first sewage pipe 3a and the second sewage pipe 2b to ensure internal cleanliness.

[0031] Furthermore, the horizontal oil collector 1 is also provided with a magnetic flap level gauge 12, which can be equipped with electronic control accessories such as a remote transmitter or a liquid level switch, for converting the liquid level signal into an electrical signal for remote transmission or control, and transmitting the liquid level information to the control module. When a certain liquid level is reached, the control module controls the closure of the solenoid valve on the pipeline connecting the oil collector and the horizontal oil collector 1 to prevent further oil inflow.

[0032] Furthermore, an oil pump 22 is provided on the oil discharge pipeline 2a, and the oil discharge efficiency can be greatly improved by the oil pump 22.

[0033] In some embodiments, the water bath 3 is connected to an overflow pipe 3b. During the oil drainage process, a certain water level must be maintained to ensure effective cooling and separation of the discharged oil. By connecting overflow pipe 3b, when the water level in the water bath 3 exceeds a set value, excess water is automatically drained through overflow pipe 3b, thereby maintaining the water level in the water bath within a suitable range.

[0034] In addition, under certain circumstances, the pressure in the water bath 3 may change, for example due to temperature changes or improper system operation, etc. By connecting the overflow pipe 3b, the system pressure can be balanced to a certain extent, preventing damage to the system due to excessively high or low pressure.

[0035] In this application, since the control mode of fully automatic oil discharge, oil collection and heating is realized, the heat exchange efficiency of the ammonia plate heat exchanger is greatly improved and the power consumption of the ammonia system equipment is reduced. The following data will prove it:

[0036] Energy-saving effect analysis (taking actual data from a factory as an example):

[0037] Working hours consumed for oil replacement of ammonia distribution plate in the whole year:

[0038]

[0039] 20,720 hours of oil drainage work were saved, which means that the overall work efficiency was improved by 67.7%.

[0040] Energy saving analysis:

[0041] Electricity saving from January to September: 943,950 kwh

[0042] Electricity saving from October to December: 219,258 kWh

[0043] Total annual electricity savings: 1,163,208 kWh

[0044] Average annual electricity price: 0.6 yuan / kwh

[0045] Annual electricity saving: 1163208×0.6=697924.80 yuan

[0046] in conclusion:

[0047] Compared with the original manual oil drainage solution, the automatic oil drainage system solution for the ammonia distribution board requires 0 oil drainage valve operation times; the oil drainage work is completed in 67.7% of the working hours; and the annual electricity consumption is saved by approximately RMB 698,000.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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. An automatic oil discharge system for ammonia distribution plate changer, characterized in that: include: A horizontal oil collector (1), which is connected to the oil collector via an oil discharge pipeline (100), an electric heater (11) is arranged in the horizontal oil collector (1), and an air return pipeline (1a), an ammonia extraction pipeline (1b) and a safety pipeline (1c) are respectively arranged on the horizontal oil collector (1); An oil collecting barrel (2) which is in communication with the horizontal oil collector (1), and an electronic weighing component (21) is disposed at the lower end of the oil collecting barrel (2); A water bath (3) connected to the oil collecting barrel (2), the water bath (3) also connected to an external water supply system, and a first sewage pipe (3a) is also provided on the water bath (3); A waste oil barrel (4) which is connected to the oil collecting barrel (2) via an oil discharge pipeline (2a), and the oil discharge pipeline (2a) is also connected to a second sewage discharge pipeline (2b); Wherein, each pipeline and conduit is provided with a solenoid valve, and the oil discharge system further comprises a control module, and the control module is electrically connected to the electronic weighing component (21) and the solenoid valve.

2. The automatic oil drain system for ammonia separation plate changer according to claim 1, characterized in that: The horizontal oil collector (1) is also provided with a magnetic flap liquid level gauge (12).

3. The automatic oil draining system for ammonia separator according to claim 1, characterized in that: An oil pump (22) is provided on the oil discharge pipeline (2a).

4. The automatic oil draining system for ammonia separation plate changer according to claim 1, characterized in that: The water bath (3) is connected to an overflow pipe (3b).

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