Multi-point temperature measuring device for gasification furnace

Abstract

The utility model belongs to the technical field of temperature measuring devices, and particularly discloses a gasification furnace multipoint temperature measuring device which comprises a connecting piece used for being connected with a gasification furnace, a fixing sleeve is arranged on the connecting piece in a penetrating mode, a thermocouple is arranged at one end of the fixing sleeve, and the free end of the thermocouple penetrates out of the fixing sleeve to be provided with an induction end. The fixing assembly is arranged on the side, close to the sensing end, of the connecting piece and used for fixing the sensing end, and the fixing assembly is detachably connected with the fixing sleeve. According to the utility model, the thermocouple can be conveniently installed through the fixed sleeve and the fixed assembly, the sealing effect of the thermocouple is ensured, and the use convenience of the multi-point temperature measuring device for the gasification furnace is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature measuring devices, in particular to a multi-point temperature measuring device for a gasifier. Background Art

[0002] A gasifier is a device that converts solid or liquid fuel into gaseous fuel. It mainly produces combustible gas by heating and ventilation, so that the fuel reacts with oxygen at high temperature. After further reacting with oxygen, these combustible gases produce high-temperature flue gas and steam, which drive the grate to rotate and discharge the combustible gas from the discharge port. After the discharged combustible gas is cleaned with water vapor, it can be used as gas fuel.

[0003] In the prior art, the temperature measurement in the gasifier is mainly carried out by integral insertion installation, and all thermocouples are inserted into the gasifier through a mounting flange to achieve temperature measurement. In the temperature measurement process, it is usually necessary to measure the gasifier annular cavity temperature, water-cooled wall operating temperature and furnace temperature. However, due to the limitation of the installation environment, the temperature measurement point installation is inaccurate. The Tsinghua gasifier usually includes an outer layer and an inner layer, and the inner layer is the furnace. When measuring the temperature in the furnace, the thermocouple measuring the furnace temperature needs to be connected to the gasifier inner layer mounting structure, and cannot be directly installed by hand. In view of this, the applicant proposes a multi-point temperature measurement device for a gasifier. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a multi-point temperature measuring device for a gasifier, which is used to solve the problem that the temperature measuring device in the prior art is inconvenient to install when the multi-point temperature measuring device for a gasifier is installed.

[0005] To achieve the above-mentioned purpose and other related purposes, the utility model provides a multi-point temperature measuring device for a gasifier, comprising: a connecting piece, used to connect with the gasifier, a fixed sleeve is passed through the connecting piece, a thermocouple is provided at one end of the fixed sleeve, and a sensing end is provided at the free end of the thermocouple passing through the fixed sleeve;

[0006] A fixing component is arranged on a side of the connecting member close to the sensing end and is used to fix the sensing end. The fixing component is detachably connected to the fixing sleeve.

[0007] Optionally, the fixing assembly includes a sealing head and a protective sleeve, the sealing head is detachably connected to the fixing sleeve, the protective sleeve is arranged on the sealing head, and the protective sleeve is covered on the sensing end.

[0008] Optionally, the protective sleeve includes a bellows and a protective tube sequentially arranged along the sealing head toward the sensing end, a connector is provided between the bellows and the protective tube, and the connector is used to be connected to the gasifier.

[0009] Optionally, the fixing component is a ferrule joint for connecting to the inside of the gasifier.

[0010] Optionally, a sealing assembly for sealing the fixing sleeve is provided on the fixing sleeve.

[0011] Optionally, a protective cap is provided on the thermocouple, and the protective cap is located in the fixed sleeve. The sealing assembly includes a pressure block, a positioning block and a locking nut. The pressure block is sleeved on the protective cap and abuts against the fixed sleeve. The positioning block is arranged in the sleeve and abuts against the pressure block. The locking nut is threadedly connected to the fixed sleeve and the locking nut presses the positioning block against the pressure block.

[0012] Optionally, a limiting gap is provided between the fixing sleeve and the positioning block, a limiting pin is inserted into the limiting gap, and the limiting pin enables the positioning block to abut against the protective tube.

[0013] Optionally, a sealing gasket is provided on the pressing block, and the sealing gasket is sleeved on the protective cap and the outer edge of the sealing gasket abuts against the inner wall of the fixed sleeve.

[0014] Optionally, a shell is provided on the connecting member, and the sealing components are all arranged in the shell.

[0015] Optionally, a junction box is further included, and the wires of the thermocouple are arranged in the junction box through the sealing assembly and the shell.

[0016] As described above, the multi-point temperature measuring device for a gasifier proposed by the utility model has the following beneficial effects:

[0017] (1) In the utility model, a fixing sleeve is provided on the connecting piece, and the fixing sleeve is used to fix the thermocouple, so that the thermocouple is indirectly connected to the connecting piece through the fixing sleeve, and the fixing assembly provided can stably fix the thermocouple. After the sensing end of the thermocouple reaches the specified position, the corresponding thermocouple is connected to the gasifier, and a stable installation is achieved.

[0018] (2) Compared with the prior art, the present invention has a fixed sleeve arranged on the connecting piece, and the fixed sleeve is used to fix the thermocouple, so that the thermocouple is indirectly connected to the connecting piece through the fixed sleeve. During installation, the thermocouple can be connected to the inner layer of the gasifier first, and then the external connecting piece and other structures can be installed. Therefore, the installation is more convenient and the installation effect is better, and the direct connection of the thermocouple to the connecting piece is avoided, which avoids the influence of the installation environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Shown is a schematic diagram of the structure of an embodiment of the utility model;

[0020] Figure 2 Shown is an enlarged view of point A in one embodiment of the utility model;

[0021] Figure 3 Shown is a schematic diagram of the utility model being connected to a gasifier.

[0022] Description of reference numerals:

[0023] Connector 1, fixed sleeve 2, sealing head 3, bellows 4, connector 5, protective tube 6, ferrule joint 7, housing 8, thermocouple 9, protective cap 901, pressure block 10, sealing gasket 11, positioning block 12, limiting gap 13, limiting pin 14, locking nut 15, junction box 16, gasifier 17, annular cavity 1701, furnace 1702, water-cooled wall 1703. DETAILED DESCRIPTION

[0024] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0025] It should be noted that the diagrams provided in the present embodiment are only used to illustrate the basic concept of the present invention in a schematic manner, so the diagrams only show the components related to the present invention rather than the number, shape and size of the components in the actual implementation. The type, quantity and proportion of each component in the actual implementation can be changed at will, and the layout of the components may be more complicated. The structure, proportion, size, etc. shown in the diagrams attached to this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can be implemented, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effect and purpose that the present invention can produce. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of the implementation of the present utility model without substantially changing the technical content.

[0026] like Figure 1-Figure 3 As shown, the utility model proposes a multi-point temperature measuring device for a gasifier.

[0027] In an exemplary embodiment, the multi-point temperature measuring device of the gasifier comprises:

[0028] A connector 1 is used to connect to the gasifier 17. A fixed sleeve 2 is passed through the connector 1. A thermocouple 9 is provided at one end of the fixed sleeve 2. A sensing end is provided at the free end of the thermocouple 9 passing through the fixed sleeve 2.

[0029] The fixing component is arranged on a side of the connector 1 close to the sensing end and is used to fix the sensing end. The fixing component is detachably connected to the fixing sleeve 2.

[0030] In this embodiment, a fixing sleeve 2 is arranged on the connecting member 1, and the fixing sleeve 2 is used to fix the thermocouple 9, so that the thermocouple 9 is indirectly connected to the connecting member 1 through the fixing sleeve 2, and the set fixing component can stably fix the thermocouple 9. After the sensing end of the thermocouple 9 reaches the specified position, the corresponding thermocouple 9 is connected to the gasifier 17 to achieve stable installation.

[0031] Moreover, in the present embodiment, a fixed sleeve 2 is provided on the connector 1, and the fixed sleeve 2 is used to fix the thermocouple 9, so that the thermocouple 9 is indirectly connected to the connector 1 through the fixed sleeve 2. During installation, the thermocouple 9 can be connected to the inner layer of the gasifier 17 first, and then the external connector 1 and other structures can be installed. Therefore, the installation is more convenient and the installation effect is better, and the direct connection of the thermocouple 9 to the connector 1 is avoided, thereby avoiding the influence of the installation environment.

[0032] In an exemplary embodiment, the fixing assembly includes a sealing head 3 and a protective sleeve. The sealing head 3 is detachably connected to the fixing sleeve 2. The protective sleeve is arranged on the sealing head 3, and the protective sleeve is covered on the sensing end.

[0033] In this embodiment, the thermocouple 9 can be further fixed by the provided sealing head 3. One end of the thermocouple 9 is fixed to one end of the fixed sleeve 2, and the other end is fixed by the sealing head 3, thereby achieving stable fixation of the thermocouple 9. In addition, the sensing end of the thermocouple 9 extending into the furnace 1702 is protected by the provided protective cover to prevent it from being corroded or damaged by falling objects during use.

[0034] Exemplarily, the sealing head 3 in this embodiment adopts a sealing sleeve bolt, which can be threadedly connected to the right end of the fixed sleeve 2. The threaded connection between the two can achieve a sealing function to prevent leakage of the medium in the gasifier 17, and a through hole is opened in the middle of the sealing head 3. The thermocouple 9 can pass through the sealing sleeve bolt through the through hole and then be connected to the protective sleeve.

[0035] It is worth noting that the gasifier 17 in this embodiment is as follows: Figure 3As shown, it includes a furnace 1702, a water-cooled wall 1703 and an annular cavity 1701, so the number of thermocouples 9 is correspondingly set to three, which are used to detect the temperature of the furnace 1702, the temperature of the water-cooled wall 1703 and the temperature of the annular cavity 1701 respectively, but the number of thermocouples 9 is not limited to three, and the number of thermocouples 9 and the fixed position can be increased or decreased according to the actual temperature measuring points of the gasifier 17.

[0036] In an exemplary embodiment, the protective sleeve includes a bellows 4 and a protective tube 6 which are sequentially arranged along the sealing head 3 toward the sensing end. A connector 5 is provided between the bellows 4 and the protective tube 6 , and the connector 5 is used to connect to the gasifier 17 .

[0037] The bellows 4 and the protection tube 6 in this embodiment are both for protecting the sensing end of the thermocouple 9. The connection head 5 can be connected to the gasifier 17, specifically to the water-cooled wall 1703 in the gasifier 17.

[0038] For example, in this embodiment, Figure 3 As shown, a threaded hole is formed on the water-cooled wall 1703, and correspondingly, the connector 5 can be threadedly connected with the threaded hole. After the connector 5 is installed in the threaded hole, the temperature in the furnace 1702 can be measured. In this embodiment, the connector 5 and the water-cooled wall 1703 are not limited to being threadedly connected, but can also be detachably connected by means of a snap connection or the like.

[0039] Exemplarily, the fixing component in this embodiment can also be a ferrule joint 7, which is used to connect with the inside of the gasifier 17. In this embodiment, for the thermocouple 9 that does not need to pass through the water-cooled wall 1703, there is no need to set the bellows 4 and the protection tube 6. The sensing end of the thermocouple 9 can directly measure the temperature of the water-cooled wall 1703 or the annular cavity 1701. Therefore, only the ferrule joint 7 is set to achieve the fixation of the corresponding thermocouple 9. The ferrule joint 7 can be connected to the internal structure of the gasifier 17, for example, installed on the water-cooled wall 1703.

[0040] It is worth mentioning that in the present embodiment, when installing the thermal couple extending into the furnace 1702, the sensing end of the thermocouple 9 is installed first, and then the section where the thermocouple 9 is connected to the fixed sleeve 2 is installed. When installing the connector 5, the steel pipe that cooperates with the connector 5 can be extended into the gasifier 17, and the steel pipe is rotated to drive the connector 5 to rotate so that it can be threadedly matched with the inner layer of the gasifier 17. Specifically, the special steel pipe and the connector 5 can adopt a hexagonal fit or a square fit to achieve connection. After the connector 5 is connected to the water-cooled wall 1703, the steel pipe can be pulled out. Similarly, the ferrule joint 7 can be installed in the same way. After the ferrule joint 7 or the connector 5 is installed, the fixed sleeve 2, the sealing assembly, and the junction box 16 are installed to achieve the installation of the thermocouple 9 in a special installation environment.

[0041] In an exemplary embodiment, a sealing assembly for sealing the fixing sleeve 2 is provided on the fixing sleeve 2 .

[0042] The provided sealing assembly can effectively prevent the medium in the gasifier 17 from leaking to the external environment through the gap between the fixed sleeve 2 and the thermocouple 9 to cause damage.

[0043] Exemplarily, in this embodiment, a protective cap 901 is provided on the thermocouple 9, and the protective cap 901 is located in the fixed sleeve 2. The sealing assembly includes a pressure block 10, a positioning block 12 and a locking nut 15. The pressure block 10 is sleeved on the protective cap 901 and abuts against the fixed sleeve 2. The positioning block 12 is arranged in the sleeve and abuts against the pressure block 10. The locking nut 15 is threadedly connected with the fixed sleeve 2 and the locking nut 15 abuts the positioning block 12 against the pressure block 10. A step is provided inside the fixed sleeve 2, and the left end of the pressure block 10 abuts against the step. By tightening the locking nut 15, the positioning block 12 can be pushed to tightly abut the pressure block 10 against the step of the fixed sleeve 2, so that the installation is stable and there is no gap. In this embodiment, a sealing gasket 11 is provided on the pressure block 10, and the sealing gasket 11 is sleeved on the protective cap 901 and the outer edge of the sealing gasket 11 abuts against the inner wall of the fixed sleeve 2. The sealing gasket 11 is made of graphite and can achieve effective sealing.

[0044] Exemplarily, there is a limiting gap 13 between the fixed sleeve 2 and the positioning block 12, and a limiting pin 14 is inserted in the limiting gap 13. When in use, by tightening the locking nut 15, the limiting pin 14 is provided on the positioning block 12 to limit the rotation of the positioning block 12, and the positioning block 12 can only slide left and right to press the pressing block 10. The pressing block 10 is provided with a conical surface, which squeezes the graphite sealing sleeve inward to deform the graphite sealing sleeve product and seal it with the armored protective cap 901 on the sensor. By using a secondary sealing assembly, accidents caused by medium leakage are avoided. The sealing assembly and the sealing head are two different sealing methods, which reduce the risk of leakage. Improve the safety and reliability of the temperature measuring device.

[0045] In an exemplary embodiment, the connector 1 is provided with a housing 8, and the sealing components are all arranged in the housing 8. In addition, the present embodiment further includes a junction box 16, and the wires of the thermocouple 9 are arranged in the junction box 16 through the sealing components and the housing 8.

[0046] The provided housing 8 and junction box 16 can protect the thermocouple 9 and the wires of the thermocouple 9, thereby preventing the thermocouple 9 from being directly exposed to the external environment and being damaged.

[0047] In summary, the utility model can realize the easy installation of the thermocouple 9 by providing the fixed sleeve 2 and the fixed assembly, while ensuring the sealing effect of the thermocouple 9 and improving the convenience of using the multi-point temperature measuring device of the gasifier.

[0048] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A multi-point temperature measuring device for a gasifier, used to detect the temperature of each point in the gasifier, characterized in that: The multi-point temperature measuring device of the gasifier comprises: A connecting piece, used for connecting with the gasifier, wherein a fixed sleeve is passed through the connecting piece, a thermocouple is provided at one end of the fixed sleeve, and a sensing end is provided at the free end of the thermocouple passing through the fixed sleeve; A fixing component is arranged on a side of the connecting member close to the sensing end and is used to fix the sensing end. The fixing component is detachably connected to the fixing sleeve.

2. The multi-point temperature measuring device for a gasifier according to claim 1, characterized in that: The fixing assembly comprises a sealing head and a protective sleeve, wherein the sealing head is detachably connected to the fixing sleeve, the protective sleeve is arranged on the sealing head, and the protective sleeve is covered on the sensing end.

3. The multi-point temperature measuring device for a gasifier according to claim 2, characterized in that: The protective sleeve comprises a bellows and a protective tube which are sequentially arranged along the sealing head toward the sensing end. A connector is arranged between the bellows and the protective tube, and the connector is used to be connected to the gasifier.

4. The multi-point temperature measuring device for a gasifier according to claim 1, characterized in that: The fixing component is a ferrule joint, which is used for connecting with the inside of the gasifier.

5. The multi-point temperature measuring device for a gasifier according to claim 3, characterized in that: The fixed sleeve is provided with a sealing assembly for sealing the fixed sleeve.

6. The multi-point temperature measuring device for a gasifier according to claim 5, characterized in that: The thermocouple is provided with a protective cap, which is located in the fixed sleeve. The sealing assembly includes a pressure block, a positioning block and a locking nut. The pressure block is sleeved on the protective cap and abuts against the fixed sleeve. The positioning block is arranged in the sleeve and abuts against the pressure block. The locking nut is threadedly connected to the fixed sleeve and the locking nut presses the positioning block against the pressure block.

7. The multi-point temperature measuring device for a gasifier according to claim 6, characterized in that: A limiting gap is provided between the fixing sleeve and the positioning block, a limiting pin is inserted into the limiting gap, and the limiting pin enables the positioning block to abut against the protection tube.

8. The multi-point temperature measuring device for a gasifier according to claim 6, characterized in that: A sealing gasket is arranged on the pressing block, and the sealing gasket is sleeved on the protective cap, and the outer edge of the sealing gasket abuts against the inner wall of the fixing sleeve.

9. The multi-point temperature measuring device for a gasifier according to claim 6, characterized in that: The connecting piece is provided with a shell, and the sealing components are all arranged in the shell.

10. The multi-point temperature measuring device for a gasifier according to claim 9, characterized in that: The utility model also comprises a junction box, in which the wires of the thermocouple are arranged through the sealing assembly and the housing.

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