Cooling liquid leakage detection device, cooling system and high-temperature carbonization furnace

Abstract

The utility model relates to a high-carbon furnace cooling system, and discloses a water leakage detection device, which comprises a liquid level observation pipe (1) and an induction alarm mechanism (2), the liquid level observation pipe (1) is arranged on a high-temperature carbide furnace through a connecting port (3) so as to collect liquid leaked from a cooling joint (4), and the induction alarm mechanism (2) is arranged on the high-temperature carbide furnace. And the induction alarm mechanism (2) is arranged at the joint of the liquid level observation pipe (1) and the connecting port (3). The cooling liquid leakage detection device is simple in structure, can timely remind a worker of cooling water leakage, displays the leakage degree, and helps the worker to maintain a high-temperature carbide furnace in time. In addition, the utility model also relates to a cooling system comprising the water leakage detection device and a high-carbon furnace.

Description

Technical Field

[0001] The utility model relates to a high carbon furnace cooling system, in particular to a water leakage detection device. In addition, the utility model also relates to a cooling system comprising the water leakage detection device and a high carbon furnace. Background Art

[0002] The high temperature carbonization furnace is mainly used for high temperature carbonization of carbonized fibers. The carbon fibers that have undergone the low temperature carbonization process enter the high temperature carbonization furnace. The fiber bundles pass through multiple heating zones in the furnace and are gradually heated to the set temperature.

[0003] The internal heating method of the high-temperature carbonization furnace is: the heating rod is heated by an electrical component, so that the heating area in the furnace reaches the set temperature. In the process of electrical heating of the electrical component, local overheating often occurs. Taking the contact surface of the electrical component as an example, the contact surface of the electrical component will be damaged after the temperature is too high. Therefore, the high-temperature carbonization furnace is provided with a corresponding cooling system to locally cool the electrical components to ensure the normal use of the electrical components. The cooling system often adopts a cooling circulating water method. By connecting the cooling water pipe to the cooling joint of the high-temperature carbonization furnace, the cooling water is circulated to cool the electrical components. Because the high-temperature carbonization furnace adopts an electric heating method, it cannot come into contact with water during use. The installation method of the cooling water pipe and the cooling joint currently used will have the problem of pipeline aging after a long period of use, resulting in cooling water leakage. Because the outer cover of the cooling water pipe is provided with a protective shell, the staff cannot detect the cooling water leakage in time, thereby affecting the normal use of the high-temperature carbonization furnace.

[0004] Therefore, it is necessary to design a new coolant leakage detection device. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a coolant leakage detection device, which can timely remind workers of cooling water leakage and display the degree of leakage, so as to help workers to perform timely maintenance on the high-temperature carbonization furnace.

[0006] In order to solve the above technical problems, the utility model provides a coolant leakage detection device, including a liquid level observation tube and an induction alarm mechanism. The liquid level observation tube is arranged on a high-temperature carbonization furnace through a connecting port so as to collect liquid leaked from the cooling joint. The induction alarm mechanism is arranged at the connection between the liquid level observation tube and the connecting port.

[0007] Furthermore, the liquid level observation tube is a U-shaped tube, the U-shaped opening of the U-shaped tube faces upward, and the interior of the U-shaped tube is filled with silicone oil.

[0008] Furthermore, a dust cover is provided at the end of the U-shaped tube away from the high-temperature carbonization furnace, and a vent hole is provided on the dust cover.

[0009] Furthermore, a filtering structure is provided at the connection port.

[0010] Furthermore, a buoy is arranged in the liquid level observation tube.

[0011] Furthermore, the induction alarm mechanism is a water immersion sensor.

[0012] The second aspect of the utility model further discloses a cooling system, comprising the coolant leakage detection device described in any one of the above technical solutions.

[0013] The third aspect of the utility model further discloses a high-temperature carbonization furnace, comprising a cooling system as described in any one of the technical solutions of the second aspect.

[0014] Furthermore, it also includes a furnace body and a protective shell covering the outside of the cooling joint, the protective shell and the outer wall of the furnace body together form a protective cavity, and the coolant leakage detection device in the cooling system is arranged at the lower end of the working surface of the protective cavity facing away from the furnace body.

[0015] Furthermore, it also includes a primary alarm mechanism, and the sensing end of the primary alarm mechanism is arranged on the outside of the cooling joint.

[0016] Through the above technical solution, the beneficial effects of the utility model are as follows:

[0017] The utility model discloses a coolant leakage detection device, including a liquid level observation tube and an induction alarm mechanism. The liquid level observation tube is arranged on a high-temperature carbonization furnace through a connection port, and is used to collect liquid leaking from a cooling joint. The induction alarm mechanism is arranged at the connection between the liquid level observation tube and the connection port. The induction alarm mechanism can sense the leakage of the cooling joint at the first time, and then alarm. The staff can choose to shut down for maintenance or other treatment methods by observing the liquid level height in the liquid level observation tube. The utility model has a simple structure, and can help the staff to promptly discover the problem of cooling joint leakage. Timely remedies will not affect the use of the high-temperature carbonization furnace, and improve the safety of use and service life of the high-temperature carbonization furnace.

[0018] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0020] Figure 1 It is a structural schematic diagram of a specific implementation of the coolant leakage detection device of the utility model.

[0021] Description of Reference Numerals

[0022] 1Liquid level observation tube 2Induction alarm mechanism

[0023] 3 connection port 4 cooling joint

[0024] 5 dust cover 51 vent hole

[0025] 6 buoy 7 protective shell

[0026] 8 Electrical components DETAILED DESCRIPTION

[0027] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation modes described herein are only used to illustrate and explain the present invention, and the protection scope of the present invention is not limited to the specific implementation modes described below.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "provided with", "installed", "connected", and "arranged" should be understood in a broad sense. For example, the connection can be a direct connection or an indirect connection through an intermediate medium, a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate connector, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] In the present invention, unless otherwise specified, the directional words used, such as "inside" and "outside", are defined based on the inside and outside of the corresponding parts. In addition, "close to" and "far away from" are defined based on the use direction of the coolant leakage detection device. Specifically, in the drawings provided in the present invention, the directions or positional relationships used are based on the directions or positional relationships shown in the drawings. The directions or positional relationships used are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The directional terms of the present invention should be understood in conjunction with the actual installation state.

[0030] During the use of the high-temperature carbonization furnace, the conventional heating method is to use electric heating. The electrical component 8 made of copper material is installed on the graphite heating rod. The heating rod is heated after power is turned on to achieve high-temperature carbonization in the furnace. However, due to the very high temperature that the heating rod needs to reach, the working surface where the power-transmitting electrical component 8 contacts the heating rod will have a problem of local overtemperature, which may cause damage to the electrical component 8. Therefore, it is necessary to locally cool the electrical component 8, etc. Considering factors such as production costs, at present, the cooling water circulation cooling method is mostly used. Due to the limited installation technology between the cooling water pipe and the cooling joint 4, the problem of cooling water leakage may occur after long-term use. However, since the cooling joint 4 is located in the protective shell 7 of the high-temperature carbonization furnace, the staff cannot immediately detect the cooling water leakage.

[0031] For the above questions, see Figure 1 The utility model provides a coolant leakage detection device, which includes a liquid level observation tube 1 and an induction alarm mechanism 2. The liquid level observation tube 1 is arranged on a high-temperature carbonization furnace through a connecting port 3. The induction alarm mechanism 2 is arranged at the connection between the liquid level observation tube 1 and the connecting port 3. When a coolant leaks between a cooling joint 4 and a cooling water pipe, the leaked coolant can flow into the liquid level observation tube 1 through the connecting port 3. The coolant contacts the induction alarm mechanism 2 during the flow process. The induction alarm mechanism 2 alarms to remind the staff that a leak has occurred at the cooling joint 4. The staff determines whether the machine needs to be shut down for maintenance by observing the liquid level in the liquid level observation tube 1.

[0032] The utility model has a simple structure and can promptly remind the staff of leakage problems in the cooling joint 4 and the cooling water pipe, avoiding the failure to promptly discover the leakage problem after the leakage, which may cause serious damage or shutdown of the high-temperature carbonization furnace, thereby improving the safety and service life of the high-temperature carbonization furnace.

[0033] Further, as a specific embodiment of the present invention, the liquid level observation tube 1 in the present invention can be a U-shaped tube, wherein the U-shaped opening of the U-shaped tube faces upward, such as Figure 1 As shown in the figure, silicone oil is filled in the U-shaped tube, one end of the U-shaped tube is connected to the high-temperature carbonization furnace through the connecting port 3, and the induction alarm mechanism 2 is arranged at the connection between the U-shaped tube and the connecting port 3. When a leakage occurs at the cooling joint 4, the leaked coolant will enter the U-shaped tube through the connecting port 3, and the amount of liquid in the U-shaped tube will increase. By observing the liquid level, the leakage degree of the coolant can be known, which is convenient for the staff to carry out maintenance.

[0034] It should be noted that, for the convenience of observation, a transparent tube can be connected to the end of the U-shaped tube away from the high-temperature carbonization furnace. Silicone oil is filled in the U-shaped tube. On the one hand, oil sealing can be achieved to prevent the inside of the protective cavity of the high-temperature carbonization furnace from contacting the outside. On the other hand, silicone oil is not conductive. When it can fully reflect the liquid level, it can avoid entering the protective cavity and causing conductivity.

[0035] Further, in order to prevent pollutants from falling into the U-shaped tube, resulting in inaccurate display of the liquid level, or the end of the liquid level observation tube 1 that is not connected to the high-temperature carbonization furnace is provided with a dust cover 5, which can prevent dust from entering the tube, and in order to balance the air pressure inside and outside the tube and facilitate the leaked coolant to flow into the tube, a vent hole 51 is provided on the dust cover 5, such as Figure 1 As shown in FIG. 5 , the vent hole 51 may be provided on the side of the dust cover 5 .

[0036] In addition, in order to facilitate staff to observe changes in liquid level, scales are set on the U-shaped tube.

[0037] It should be noted that the U-shaped tube is only one of the specific embodiments of the liquid level observation tube 1 in the present invention. In addition, the liquid level observation tube 1 can also be a transparent observation tube vertically arranged below the protective cavity of the high-temperature carbonization furnace. One end of the transparent observation tube is connected to the high-temperature carbonization furnace through the connecting port 3, and the other end is a closed end. A vent 51 is provided on its side wall to balance the air pressure inside and outside the tube and facilitate the leaked coolant to flow into the tube.

[0038] Furthermore, a filter structure is provided at the connection port 3. Once pollutants fall into the observation tube, in order to prevent the pollutants from entering the protection cavity of the high-temperature carbonization furnace, a filter structure is provided at the connection port 3 to isolate the pollutants outside the protection cavity. Specifically, the filter structure can be a filter net.

[0039] As a specific implementation of the utility model, Figure 1 As shown, in order to facilitate the staff to observe the liquid level, a float 6 can be set in the liquid level observation tube 1, and the height of the liquid level is displayed by the floating height of the float 6.

[0040] In addition, in the present invention, the sensing alarm mechanism 2 can be a water immersion sensor, which is based on the principle of liquid conductivity and uses the principle of liquid conductivity for detection. When there is no water leakage, the two-pole probe is insulated by air; when it is immersed in water, the probe is turned on and the sensor outputs a dry contact signal. When water contacts the sensor probe, the main control chip accurately determines the state and makes processing by calculating the change of the magnetic field. The sensor has high reliability and is easy to operate.

[0041] A second aspect of the present invention provides a cooling system, which includes the coolant leakage detection device provided by the first aspect.

[0042] The third aspect of the utility model provides a high-temperature carbonization furnace, which is provided with the cooling system provided by the second aspect.

[0043] Furthermore, the high temperature carbonization furnace includes a furnace body and a protective cavity covered on the outside of the cooling joint 4. Figure 1 The figure shows a part of a high temperature carbonization furnace, in which Figure 1 As shown in the figure, the electrical component 8 is sleeved on the heating rod and energized to heat the heating rod. Therefore, the joint between the heating rod and the electrical component 8 is arranged outside the furnace body. In order to protect the joint of the heating rod, a protective shell 7 is arranged outside the furnace body. The protective shell 7 and the furnace body are surrounded to form a protective cavity. Because the heating rod is mostly made of graphite material, in order to prevent the heating rod from contacting with oxygen in the air to form carbon monoxide or carbon dioxide, which aggravates the corrosion of the heating rod, nitrogen is filled in the protective cavity as a protective gas. Therefore, as shown in the figure, Figure 1 As shown, the connection port 3 can be opened at the lower end of the side of the protective shell 7 away from the furnace body. In order to facilitate the leaked coolant to flow from the connection port 3 into the liquid level observation tube 1, the lower end surface of the connection port 3 can be flush with the lower end surface of the protective shell 7.

[0044] Furthermore, as a specific implementation of the high-temperature carbonization furnace of the utility model, it also includes a primary alarm mechanism, and the sensing end of the primary alarm mechanism is arranged outside the cooling joint 4.

[0045] Specifically, the primary alarm mechanism can also be a water immersion sensor, and the two-pole sensing probe of the water immersion sensor is set at the connection between the cooling joint 4 and the cooling water pipe. When a leak occurs at the connection, the primary alarm mechanism will promptly alarm and notify the staff to go and check it in time.

[0046] It should be noted that the primary alarm mechanism and the inductive alarm mechanism 2 can be set up at the same time. When the primary alarm mechanism sounds an alarm, it reminds the staff of a leakage. When the inductive alarm mechanism 2 sounds an alarm, it reminds the staff of a leakage. The staff can carry out maintenance in time through the two alarms, and by observing the liquid level in the liquid level observation tube 1, make a timely judgment as to whether shutdown for maintenance is required.

[0047] The coolant leakage detection device provided by the utility model has a simple structure and is easy to install and operate. It can promptly remind the staff of leakage of the cooling joint 4 of the high-temperature carbonization furnace, thereby avoiding the failure to detect leakage and affecting the normal use of the high-temperature carbonization furnace.

[0048] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "a specific implementation", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0049] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0050] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0051] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A coolant leakage detection device, characterized in that: It comprises a liquid level observation tube (1) and an induction alarm mechanism (2); the liquid level observation tube (1) is arranged on a high-temperature carbonization furnace through a connection port (3) so as to collect liquid leaking from a cooling joint (4); and the induction alarm mechanism (2) is arranged at the connection between the liquid level observation tube (1) and the connection port (3).

2. The coolant leakage detection device according to claim 1, characterized in that: The liquid level observation tube (1) is a U-shaped tube, and the U-shaped opening of the U-shaped tube faces upward.

3. The coolant leakage detection device according to claim 2, characterized in that: A dust cover (5) is provided at the end of the U-shaped tube away from the high-temperature carbonization furnace, and a vent hole (51) is provided on the dust cover (5).

4. The coolant leakage detection device according to claim 3, characterized in that: A filtering structure is provided at the connection port (3).

5. The coolant leakage detection device according to claim 4, characterized in that: A buoy (6) is arranged in the liquid level observation tube (1).

6. The coolant leakage detection device according to any one of claims 1 to 5, characterized in that: The induction alarm mechanism (2) is a water immersion sensor.

7. A cooling system, characterized in that: It comprises a coolant leakage detection device according to any one of claims 1 to 6.

8. A high temperature carbonization furnace, characterized in that: Comprising a cooling system according to claim 7.

9. The high temperature carbonization furnace according to claim 8, characterized in that: It also includes a furnace body and a protective shell (7) arranged on the outside of the cooling joint (4), wherein the protective shell (7) and the outer wall of the furnace body together form a protective cavity, and a coolant leakage detection device in the cooling system is arranged at the lower end of the working surface of the protective shell (7) facing away from the furnace body.

10. The high temperature carbonization furnace according to claim 9, characterized in that: It also comprises a primary alarm mechanism, wherein the sensing end of the primary alarm mechanism is arranged on the outside of the cooling joint (4).

Images