Automatic control device of water spraying tank for evaporator

Abstract

The utility model belongs to the technical field of water spraying tank defrosting control application, and particularly discloses an automatic water spraying tank control device for an evaporator, which comprises a PLC (programmable logic controller), a water outlet pipe, a hot water pump, a heating water tank, a water conveying pipe, a cold water heating part, a temperature sensor, an electromagnetic valve and the like. Wherein the hot water pump, the cold water heating part, the temperature sensor and the electromagnetic valve are respectively connected with the PLC. The water spraying tank automatic control device for the evaporator has the advantages that the temperature of the hot water supply end and the temperature and humidity of the evaporator end can be monitored synchronously, automatic defrosting temperature control and defrosting intermittent time control are carried out, continuous water heating and continuous water spraying are not needed, waste of electric energy and water is eradicated, and defrosting cost is saved; and 2, safe and timely monitoring and control are realized by combining the work of a pipeline pressure sensor and an early warning lamp, and the use requirement of safe production is met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the water tank defrosting control application technical field, concretely relates to evaporimeter water tank automatic control device for the evaporimeter defrosting water tank automatic water control. BACKGROUND

[0002] Evaporimeter frost will cause the cooling system to work abnormally, affect its work efficiency, and seriously cause production safety accidents.

[0003] At present, hot water defrosting is a common evaporimeter defrosting method, which has the advantages of simple structure, low maintenance cost and complete defrosting.

[0004] At present, the water tank works continuously during hot water defrosting, which causes large power consumption and large water consumption during long-term use, and accordingly increases the defrosting use cost. If the water tank can be automatically monitored and defrosted (defrosted intermittently as needed, or stopped when not working), the above problems can be solved.

[0005] Therefore, based on the above problems, the utility model provides an evaporimeter water tank automatic control device. UTILITY MODEL CONTENT

[0006] The utility model aims at providing an evaporimeter water tank automatic control device to solve the problems in the prior art.

[0007] Technical scheme: The evaporimeter water tank automatic control device of the utility model, including water tank with water distribution pipe, water tank with water collection shell water inlet, evaporimeter and PLC controller, one end of the water tank with water collection shell water inlet is connected with the water outlet pipe, one end of the water outlet pipe is connected with the hot water pump, one side of the hot water pump is provided with the heating water tank, the heating water tank is provided with the water supply pipe connected with the hot water pump, the heating water tank is provided with the cold water heating part and the temperature sensor, the water supply pipe is provided with the electromagnetic valve; wherein the hot water pump, the cold water heating part, the temperature sensor and the electromagnetic valve are connected with the PLC controller.

[0008] The evaporimeter water tank automatic control device further comprises a pipeline pressure sensor arranged on the water outlet pipe and connected with the PLC controller.

[0009] The evaporimeter water tank automatic control device further comprises a temperature and humidity sensor arranged on the working surface of the evaporimeter and connected with the PLC controller.

[0010] The evaporator water spraying tank automatic control device also comprises a pre-warning lamp connected with the PLC controller.

[0011] Compared with the prior art, the evaporator water spraying tank automatic control device has the advantages that: 1. the hot water supply end temperature, the temperature and humidity of the evaporator end can be synchronously monitored, and the defrosting temperature control and the defrosting interval time control are automatically realized, so that the hot water and the water spraying are not required to be continuously performed, the waste of electric energy and water is avoided, and the defrosting cost is saved; and 2. the pipeline pressure sensor and the pre-warning lamp are combined to work, so that the safe and timely monitoring and control are realized, and the use requirement of safe production is met. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0013] Figure 1 is a front view structural schematic diagram of the evaporator water spraying tank automatic control device of the present application;

[0014] Figure 2 is a connection structure schematic diagram of a hot water pump, a cold water heating part, a temperature sensor, an electromagnetic valve and a PLC controller of the evaporator water spraying tank automatic control device of the present application;

[0015] In the drawings, the serial numbers are as follows: 100 is a water spraying tank with a water distribution pipe, 110 is a water inlet of a water spraying tank with a water collecting shell, 102 is an evaporator, 10 is a hot water tank, 11 is a hot water pump, 12 is a pre-warning lamp, 13 is a PLC controller, 14 is a cold water heating part, 15 is a temperature sensor, 16 is a water delivery pipe, 17 is an electromagnetic valve, 18 is a water outlet pipe, 19 is a pipeline pressure sensor, and 20 is a temperature and humidity sensor. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0017] In the description of the utility model, it is necessary to explain that the terms "top", "bottom", "one side", "the other side", "front", "back", "intermediate position", "interior", "top end", "bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not indicative or suggestive of the devices or elements indicated having a specific orientation, being constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicative or suggestive of relative importance; in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0018] The utility model is further illustrated below in combination with the drawings and specific embodiments.

[0019] Embodiment

[0020] As Figure 1 and Figure 2 The automatic control device for the water spraying tank of the evaporator shown in the figure comprises a water spraying tank 100 with a water distribution pipe, a water inlet 101 of the water spraying tank with a water collecting shell, an evaporator 102 and a PLC controller 13,

[0021] One end of the water inlet 101 of the water spraying tank with the water collecting shell is connected with a water outlet pipe 18,

[0022] One end of the water outlet pipe 18 is connected with a hot water pump 11,

[0023] One side of the hot water pump 11 is provided with a heating water tank 10,

[0024] The heating water tank 10 is provided with a water delivery pipe 16 connected with the hot water pump 11,

[0025] The heating water tank 10 is provided with a cold water heating part 14 and a temperature sensor 15,

[0026] The water delivery pipe 16 is provided with an electromagnetic valve 17;

[0027] The hot water pump 11, the cold water heating part 14, the temperature sensor 15 and the electromagnetic valve 17 are connected with the PLC controller 13 respectively.

[0028] The working principle is that the PLC controller 13 presets the temperature value range of the heated water in the heating water tank 10 fed back by the temperature sensor 15 after the cold water heating part 14 is started; and the PLC controller 13 controls the interval time of starting the hot water pump 11, such as starting for 2 minutes after 10 minutes and then stopping, or starting for 4 minutes after 15 minutes and then stopping.

[0029] Firstly, the PLC controller 13 controls the cold water heating part 14 to start water heating according to the water temperature value parameter information of the heating water tank 10 fed back by the temperature sensor 15 when the temperature value is lower than the preset temperature value range; and the PLC controller 13 controls the cold water heating part 14 to stop water heating when the temperature value meets the preset temperature value range.

[0030] Then, when the working time of the evaporator 102 meets the time value of the PLC controller 13, the PLC controller 13 controls the hot water pump 11 to start and opens the electromagnetic valve 17, at this time, the defrosting hot water is drawn out from the heating water tank 10, sequentially passes through the water conveying pipe 16 and the water outlet pipe 18, and then is completed through the water inlet 101 of the water tank with the water collecting shell and the water tank 100 with the water distribution pipe to spray water and defrost the evaporator 102 below.

[0031] When the defrosting time reaches the preset time value, the PLC controller 13 controls the hot water pump 11 to stop and closes the electromagnetic valve 17, so as to stop the hot water from being drawn out for defrosting.

[0032] Example Two

[0033] On the basis of example one, the evaporator water tank automatic control device further comprises a pipeline pressure sensor 19 arranged on the water outlet pipe 18 and connected with the PLC controller 13.

[0034] In the above, the PLC controller 13 presets the safety pipeline pressure range value of the water outlet pipe 18, the pipeline pressure sensor 19 feeds back the pipeline pressure value to the PLC controller 13 in real time, the PLC controller 13 displays and controls the working state of the hot water pump 11 according to the fed back pipeline pressure value.

[0035] When the pipeline pressure range value is needed to start the hot water pump 11, the PLC controller 13 controls to start the hot water pump 11; when the pipeline pressure range value is not needed to start the hot water pump 11, the PLC controller 13 controls not to start the hot water pump 11.

[0036] Example Three

[0037] On the basis of example one or example two, the evaporator water tank automatic control device further comprises a temperature and humidity sensor 20 arranged on the working surface of the evaporator 102 and connected with the PLC controller 13.

[0038] In the above: the temperature and humidity sensor 20 feeds the temperature and humidity parameters of the working surface of the evaporator 102 to the PLC controller 13, the PLC controller 13 presets the temperature and humidity parameter range value (this temperature and humidity parameter range value is the parameter prone to frost), and according to the temperature and humidity parameter value fed back by the temperature and humidity sensor 20, the different states of the hot water pump 11 and the electromagnetic valve 17 are controlled accordingly.

[0039] When the temperature and humidity parameter range value is within the range, the PLC controller controls the hot water pump 11 to start and opens the electromagnetic valve 17 to defrost; when the temperature and humidity parameter range value is not within the range, the PLC controller controls the hot water pump 11 to not start and does not open the electromagnetic valve 17 to defrost.

[0040] Example four

[0041] On the basis of example one or example two or example three, the evaporator water tank automatic control device further comprises a warning light 12 connected with the PLC controller 13, and the warning light 12 can remind the manager to handle the fault state in time.

[0042] The evaporator water tank automatic control device of the structure realizes energy saving, reduces defrosting cost, and realizes safe defrosting automatic control through the combination of multiple working modes.

[0043] In the evaporator water tank automatic control device of the structure, the hot water pump 11, the warning light 12, the PLC controller 13, the cold water heating part 14, the temperature sensor 15, the electromagnetic valve 17, the pipeline pressure sensor 19 and the temperature and humidity sensor 20 are all conventional components.

[0044] It should be noted that in this paper, terms such as "including", "containing" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0045] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. An automatic control device for evaporator water spray tank, comprising a water distribution pipe water spray tank (100), a water spray tank water inlet (101) with a water collection shell, an evaporator (102) and a PLC controller (13), characterized in that: One end of the water spray tank water inlet (101) with a water collection shell is connected with a water outlet pipe (18), One end of the water outlet pipe (18) is connected with a hot water pump (11), One side of the hot water pump (11) is provided with a heating water tank (10), The heating water tank (10) is provided with a water supply pipe (16) connected with the hot water pump (11), The heating water tank (10) is provided with a cold water heating part (14) and a temperature sensor (15), The water supply pipe (16) is provided with a solenoid valve (17); The hot water pump (11), the cold water heating part (14), the temperature sensor (15) and the solenoid valve (17) are connected with the PLC controller (13) respectively.

2. The automatic control device for a shower box of an evaporator according to claim 1, characterized by: The automatic control device for evaporator water spray tank further comprises a pipeline pressure sensor (19) arranged on the water outlet pipe (18) and connected with the PLC controller (13).

3. The automatic control device for a shower box of an evaporator according to claim 2, characterized by: The automatic control device for evaporator water spray tank further comprises a temperature and humidity sensor (20) arranged on the working surface of the evaporator (102) and connected with the PLC controller (13).

4. The automatic control device for a shower box of an evaporator according to claim 3, characterized by: The automatic control device for evaporator water spray tank further comprises a warning light (12) connected with the PLC controller (13).

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