Visual fault alarm device for drain valve of coating machine

Abstract

The utility model relates to a visible alarm device for the fault of a drain valve of a coating machine, which solves the problem that the fault of the existing drain valve cannot be found in time. Comprising a steam trap and a visual alarm, the input end of a heat exchanger is connected with a steam pipe, the output end of the heat exchanger is connected with the steam trap, when the steam trap is in a normally-closed state due to damage, the temperature flowing through an alarm shell is reduced, a temperature sensor transmits a detected temperature signal to a controller, and the visual alarm is started. The controller controls the warning indicator to give an alarm; if the drain valve is normally opened or is opened too frequently, part of steam also flows through the visual alarm, so that the temperature of the shell of the alarm rises, the temperature sensor transmits a detected temperature signal to the controller, and the controller controls the warning indicator to give an alarm; in addition, a worker can observe the flowing state of condensate water and steam in the alarm shell through the observation window, and can further judge whether the work is abnormal or not, so that the fault of the drain valve can be found in time.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coating machine platform technical field, concretely relates to a coating machine platform drain valve fault visible alarm device. BACKGROUND

[0002] The adhesive tape has coating procedure in the production manufacturing process, carries out high temperature drying to the adhesive tape after coating, and the drying mode has variety, wherein has the heating drying using high temperature steam, the high temperature steam enters the heat exchanger 1 of the oven through the steam pipe 2, and the steam releases heat and becomes condensed water and is discharged by the drain valve 3, as shown in figure-1.

[0003] The drain valve can automatically discharge the steam condensate in the pipeline, and does not leak steam, plays a relatively key role in the coating machine platform drying system, belongs to the mechanical type structure spare part, and also cannot avoid the damage, and the drain valve damage has three situations: 1. Cannot open (normally closed state);2. There is foreign matter and causes the normal opening;3. Open too frequently.

[0004] The existing coating machine platform technology only the first situation can discover in time to the drain valve damage, and the second and third situations cannot discover in time;If the drain valve is normally open or opens too frequently, will lead to the steam to be discharged after not completing the heat energy conversion, causes the energy waste, and increases the manufacturing cost. INVENTION CONTENTS

[0005] The utility model discloses a coating machine platform drain valve fault visible alarm device, which can timely discover the drain valve damage, and has the advantages of simple structure, convenient operation and the like.

[0006] In order to solve the technical problems put forward in the utility model, the technical scheme that the utility model discloses adopts is: the coating machine platform drain valve fault visible alarm device of the utility model includes the drain valve connected with the output end of the heat exchanger of the coating machine platform, the input end of the heat exchanger is connected with the steam pipe, the drain valve is connected with the backwater pipe, the drain valve fault visible alarm device further includes a visible alarm, the visible alarm includes an alarm cavity, a temperature sensor, a warning device and a controller, the alarm cavity is connected between the output end of the drain valve and the backwater pipe, a transparent observation window is arranged on the alarm cavity, the temperature sensor is located in the alarm cavity, the temperature sensor and the warning device are connected with the controller, the temperature sensor provides a first alarm trigger signal for the controller when detecting that the temperature in the alarm cavity is lower than a first preset temperature value, and provides a second alarm trigger signal for the controller when detecting that the temperature in the alarm cavity is higher than a second preset temperature value;The controller is used to control the warning device to alarm when receiving the first alarm trigger signal or the second alarm trigger signal.

[0007] The technical scheme further limited to the utility model includes:

[0008] The warning device is a warning light.

[0009] The alarm is a voice alarm connected with the controller.

[0010] The top of the alarm cavity is provided with a temperature sensor mounting hole matched with the temperature sensor, and the temperature sensor is in sealed connection with the temperature sensor mounting hole.

[0011] The two sides of the alarm cavity are respectively in sealed connection with the output end of the drain valve and the return water pipe through the first flange plate.

[0012] The observation window is a glass observation window, and the glass observation window is in sealed connection with the alarm cavity through the second flange plate.

[0013] Through the above technical scheme, the coating machine platform drain valve fault visual alarm device has the following beneficial effects: when the drain valve is damaged and in a normally closed state, the condensed water cannot flow through the alarm cavity, so that the temperature of the alarm cavity decreases, the temperature sensor transmits the detected temperature signal to the controller, and the controller controls the alarm to issue an alarm; if the drain valve is in a normally open state or is opened too frequently, in addition to the condensed water, part of the steam also flows through the visual alarm, so that the temperature of the alarm cavity increases, the temperature sensor transmits the detected temperature signal to the controller, and the controller controls the alarm to issue an alarm; in addition, the staff can observe the state of the condensed water and the steam flowing through the alarm cavity through the observation window, so as to further determine whether the work is abnormal, so that the fault of the drain valve can be found in time. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an installation structure diagram of the drain valve of the background technology of the coating machine platform drain valve fault visual alarm device.

[0015] Figure 2 It is a structure diagram of the coating machine platform drain valve fault visual alarm device.

[0016] Figure 3 It is a side view structure diagram of the visual alarm of the coating machine platform drain valve fault visual alarm device.

[0017] Figure 4 It is a top view structure diagram of the visual alarm of the coating machine platform drain valve fault visual alarm device.

[0018] Figure 5 It is an electrical block structure diagram of the coating machine platform drain valve fault visual alarm device. DETAILED DESCRIPTION

[0019] The structure of the utility model is further explained in combination with the drawings.

[0020] Referring to Figures 1 to 5 The coating machine table drain valve fault visible alarm device comprises a drain valve 3 connected with the output end of a heat exchanger of a coating machine table, a steam pipe 1 connected with the input end of the heat exchanger, and a backwater pipe 4 connected with the drain valve. Steam input by the steam pipe exchanges through the heat exchanger, and the steam releases heat and becomes condensed water which is discharged by the drain valve 3. The drain valve can automatically discharge the steam condensate in the pipeline without leaking steam. The drain valve fault visible alarm device further comprises a visible alarm 5. The visible alarm comprises an alarm cavity 51, a temperature sensor 52, a warning device, and a controller. The alarm cavity is connected between the output end of the drain valve and the backwater pipe. A transparent observation window 53 is arranged on the alarm cavity. The temperature sensor 52 is located in the alarm cavity 51. The temperature sensor and the warning device are connected with the controller. When the temperature in the alarm cavity is detected to be lower than a first preset temperature value, the temperature sensor provides a first alarm trigger signal for the controller. The first preset temperature is set according to the temperature value of the condensed water flowing out of the drain valve in a normal state of the drain valve. The first preset temperature is lower than the temperature of the condensed water flowing out of the drain valve in the normal state of the drain valve. When the temperature in the alarm cavity is detected to be higher than a second preset temperature value, the temperature sensor provides a second alarm trigger signal for the controller. The second preset temperature value is set according to the temperature of the steam flowing through the drain valve when the drain valve is frequently opened or started. The second preset temperature value is higher than the temperature of the condensed water flowing out of the drain valve in the normal state of the drain valve. The controller is used for controlling the warning device to alarm when the first alarm trigger signal or the second alarm trigger signal is received.

[0021] In the embodiment, the top of the alarm cavity 51 is provided with a temperature sensor mounting hole 6 matched with the temperature sensor. The temperature sensor is sealingly connected with the temperature sensor mounting hole. The temperature sensor is used for detecting the temperature in the alarm cavity and transmitting the detected temperature information to the controller.

[0022] In the embodiment, the two sides of the alarm cavity 51 are sealingly connected with the output end of the drain valve and the backwater pipe through first flanges 54. The two ends of the alarm cavity 51 are respectively provided with a left connecting pipe 511 and a right connecting pipe 512. The left connecting pipe is sealingly connected with the output end of the drain valve through the first flange, and the right connecting pipe is sealingly connected with the backwater pipe through the first flange.

[0023] In the embodiment, the observation window 53 is a glass observation window. The glass observation window is sealingly connected with the alarm cavity through a second flange 55. Through the observation window, the state of the condensed water in the alarm cavity and the steam flowing through can be observed, and whether the work is abnormal can be further determined.

[0024] In the embodiment, the warning device is a warning light. In practice, the warning device can also be a voice warning device connected with the controller. When the water supply is abnormal, the controller controls the warning device to alarm, which can be through the warning light flickering or through the voice warning device to alarm.

[0025] The condensate water cannot flow through the alarm cavity, so that the temperature in the alarm cavity decreases, the temperature sensor transmits the detected temperature signal to the controller, the controller compares the detected temperature with the first preset temperature value, when the detected temperature is lower than the first preset temperature value, the controller controls the warning device to alarm; if the drain valve is in the normal open state or is opened too frequently, in addition to the condensate water, part of the steam also flows through the visible alarm, so that the temperature flowing through the alarm cavity increases, the temperature sensor transmits the detected temperature signal to the controller, the controller compares the detected temperature with the second preset temperature value, when the detected temperature exceeds the second preset temperature value, the controller controls the warning device to alarm, in addition, the staff can observe the state of the condensate water and the steam flowing through the alarm cavity through the observation window, and can further determine whether the work is abnormal, so that the fault of the drain valve can be found in time.

[0026] Although the specific embodiments of the utility model are described in detail in combination with the drawings, it should not be understood as the limitation of the protection scope of the utility model. Various modifications and changes made by those skilled in the art within the scope described in the claims still belong to the protection scope of the utility model.

Claims

1. A device for visually alarming a failure of a drain valve of a coater, comprising a drain valve connected to an output of a heat exchanger of the coater, a steam pipe connected to an input of the heat exchanger, and a return pipe connected to the drain valve, characterized in that: The hydrophobic valve fault visual alarm device further comprises a visual alarm, the visual alarm comprises an alarm cavity, a temperature sensor, a warning device and a controller, the alarm cavity is connected between the output end of the hydrophobic valve and the return water pipe, a transparent observation window is arranged on the alarm cavity, the temperature sensor is located in the alarm cavity, the temperature sensor and the warning device are connected with the controller, the temperature sensor provides a first alarm trigger signal for the controller when detecting that the temperature in the alarm cavity is lower than a first preset temperature value, and the temperature sensor provides a second alarm trigger signal for the controller when detecting that the temperature in the alarm cavity is higher than a second preset temperature value; the controller is used for controlling the warning device to alarm when receiving the first alarm trigger signal or the second alarm trigger signal. ​ 2. A coating booth drain valve malfunction visual alarm apparatus as claimed in claim 1, wherein: The warning device is a warning light.

3. A coating booth drain valve malfunction visual alarm apparatus as defined in claim 1, wherein: The warning device is a voice warning device connected with the controller.

4. A coating booth drain valve malfunction visual alarm apparatus as defined in claim 1, wherein: A temperature sensor mounting hole matched with the temperature sensor is arranged on the top of the alarm cavity, and the temperature sensor is sealingly connected with the temperature sensor mounting hole.

5. A coating booth drain valve malfunction visual alarm apparatus as defined in claim 1 wherein: The two sides of the alarm cavity are sealingly connected with the output end of the hydrophobic valve and the return water pipe through first flange plates respectively.

6. A coating booth drain valve malfunction visual alarm apparatus as defined in claim 1, wherein: The observation window is a glass observation window, and the glass observation window is sealingly connected with the alarm cavity through a second flange plate.

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