Thermocouple protective cap

Abstract

The utility model relates to the technical field of temperature measurement, in particular to a thermocouple protective cap, which is mounted between an upper refractory block and a lower refractory block and comprises a cap body, and a through hole A and a through hole B are arranged on the cap body. An inclined surface is arranged at the upper end of the front surface of the cap body and is used for guiding slag. According to the utility model, the inclined surface is designed on the thermocouple protective cap, so that the flow direction of slag can be effectively guided, the slag is prevented from being accumulated in the thermocouple cavity, and the risk of damage to the thermocouple caused by the slag is obviously reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature measurement, in particular to a thermocouple protection cap. Background Art

[0002] At present, a gasifier is an industrial device mainly used for converting solid or liquid fuels (such as coal, biomass, petroleum coke, etc.) into syngas (the main components are carbon monoxide and hydrogen). This process is usually carried out under high temperature and high pressure conditions, and the partial oxidation of the fuel is achieved by controlling the supply of oxygen or steam. During the gasification process, the non-gasifiable part of the fuel (mainly ash) will melt at high temperature to form slag. These slags need to be removed from the gasifier, otherwise it will affect the normal operation of the gasifier. The refractory lining in the gasifier is a protective layer made of refractory materials, which is used to protect the metal shell of the gasifier from high temperature damage. Refractory materials usually have good thermal stability, low thermal conductivity and high corrosion resistance, and can withstand extreme temperature conditions without significant physical or chemical changes. Refractory blocks are one of the main components of the refractory lining, usually made of refractory materials such as aluminosilicate and magnesia. They are used to build the internal structure of the gasifier to provide additional heat resistance protection.

[0003] At present, the gasifiers in the existing technologies have the following technical problems:

[0004] 1. During the operation of the gasifier, slag is likely to enter the thermocouple cavity in the refractory block and block the cavity, which will cause the clearance space around the thermocouple to decrease or disappear, thus generating additional forces on the thermocouple when the refractory lining expands or contracts, increasing the risk of damage to the thermocouple.

[0005] 2. During the cooling period of the gasifier, the shrinkage of the refractory lining will cause the position of the thermocouple cavity to change. If the thermocouple cavity is blocked by slag at this time, it will generate shear force on the thermocouple, increasing the possibility of damage to the thermocouple. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a thermocouple protection cap. By designing an inclined surface on the thermocouple protection cap, the utility model can effectively guide the flow direction of slag, avoid slag accumulation in the thermocouple cavity, and significantly reduce the risk of damage to the thermocouple caused by slag.

[0007] The technical solution adopted by the utility model to solve the above technical problems is: a thermocouple protection cap is installed between the upper refractory block and the lower refractory block. The thermocouple protection cap includes a cap body, and a through hole A and a through hole B are opened on the cap body;

[0008] The upper end of the front surface of the cap body is provided with an inclined surface for guiding the flow of slag.

[0009] Further, a clamping groove is provided between the upper refractory block and the lower refractory block, and the cap body is installed in the clamping groove.

[0010] Further, a receiving hole is provided in the clamping groove, and a thermocouple is installed in the receiving hole.

[0011] Further, an angle of 140° is formed between the inclined surface and the front surface of the cap body.

[0012] Further, both the through hole A and the through hole B are inclined holes.

[0013] The advantages of the present utility model are as follows: The present utility model provides a thermocouple protection cap, and the present utility model has the following advantages:

[0014] 1. Reducing or preventing slag from entering the thermocouple cavity:

[0015] By designing an inclined surface on the thermocouple protection cap, the present utility model can effectively guide the flow direction of the slag, avoid the accumulation of slag in the thermocouple cavity, and significantly reduce the risk of damage to the thermocouple caused by the slag.

[0016] 2. Reducing the risk of thermocouple damage:

[0017] The present utility model can reduce the situation of slag clogging the thermocouple cavity. Even when the refractory lining shrinks during the cooling process of the gasifier, it can avoid additional pressure on the thermocouple caused by the slag, thereby reducing the possibility of thermocouple damage. Description of the Drawings

[0018] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic assembly structure diagram of the present utility model;

[0020] Figure 2 It is an enlarged structure diagram of the present utility model;

[0021] Wherein:

[0022] 1. Cap body; 101. Front surface; 102. Inclined surface;

[0023] 2. Through hole A; 3. Through hole B; 4. Upper refractory block;

[0024] 5. Lower refractory block; 6. Clamping groove; 601. Receiving hole;

[0025] 7. Thermocouple Specific Embodiment

[0026] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work shall fall within the protection scope of the present utility model.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. The terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] Embodiment 1:

[0029] Figure 1 is a schematic assembly structure diagram of the present utility model, Figure 2 is an enlarged structural schematic diagram of the present utility model, as Figure 1 and Figure 2 shown, a thermocouple protection cap is installed between the upper refractory block 4 and the lower refractory block 5. The thermocouple 7 protection cap includes a cap body 1, and a through hole A2 and a through hole B3 are opened on the cap body 1; among them, the cap body 1 is the basic structure of the entire thermocouple 7 protection cap, which is used to carry and fix other components. By installing the cap body 1 between the upper refractory block 4 and the lower refractory block 5, it can provide physical protection for the thermocouple 7 and serve as a barrier between the thermocouple 7 and the external environment.

[0030] The utility model is provided with an inclined surface 102 at the upper end of the front surface 101 of the cap body 1. The inclined surface 102 is used for guiding the slag. The inclined surface 102 forms an angle of 140° with the front surface 101 of the cap body 1. Specifically, the inclination angle of the inclined surface 102 is designed to guide the slag away from the protection cap of the thermocouple 7, avoiding the accumulation of slag near the cavity of the thermocouple 7. Through the guiding action of the inclined surface 102, the probability of slag entering the cavity of the thermocouple 7 can be significantly reduced, thereby reducing the risk of damage to the thermocouple 7 and simplifying the maintenance work.

[0031] A clamping groove 6 is arranged between the upper refractory block 4 and the lower refractory block 5 of the utility model. The cap body 1 is installed in the clamping groove 6. The clamping groove 6 is used for fixing the cap body 1 to ensure the stable installation of the protection cap of the thermocouple 7. By installing the cap body 1 in the clamping groove 6, it can be ensured that the protection cap of the thermocouple 7 is firmly fixed at a predetermined position, preventing it from moving or loosening during operation. A receiving hole 601 is opened in the clamping groove 6, and a thermocouple 7 is installed in the receiving hole 601. The receiving hole 601 is used for installing the thermocouple 7 to ensure that the thermocouple 7 is correctly positioned in the cavity of the thermocouple 7. By fixing the thermocouple 7 in place through the receiving hole 601, it can be ensured that the thermocouple 7 can accurately measure the temperature and still work stably in the presence of slag.

[0032] Both the through hole A2 and the through hole B3 in the utility model are inclined holes, which are used for the probe of the thermocouple 7 to pass through to monitor the temperature inside the gasifier. The design of the inclined holes helps to further reduce the possibility of slag entering the cavity of the thermocouple 7 through these pores, and at the same time ensures that the thermocouple 7 can accurately measure the actual temperature of the reaction chamber.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A thermocouple protection cap, characterized in that, Installed between the upper refractory block (4) and the lower refractory block (5), the protective cap of the thermocouple (7) includes a cap body (1), and a through hole A (2) and a through hole B (3) are provided on the cap body (1); An inclined surface (102) is provided at the upper end of the front surface (101) of the cap body (1), and the inclined surface (102) is used to divert the slag.

2. A thermocouple protection cap according to claim 1, characterized in that: A clamping groove (6) is provided between the upper refractory block (4) and the lower refractory block (5), and the cap body (1) is installed in the clamping groove (6).

3. A thermocouple protection cap according to claim 2, characterized in that: A receiving hole (601) is provided in the clamping groove (6), and a thermocouple (7) is installed in the receiving hole (601).

4. A thermocouple protection cap according to claim 1, characterized in that: The inclined surface (102) forms an angle of 140° with the front surface (101) of the cap body (1).

5. A thermocouple protection cap according to claim 3, characterized in that: Both the through hole A (2) and the through hole B (3) are inclined holes.

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