Chain temperature measuring device and temperature measuring method thereof

Abstract

The invention discloses a chain temperature measuring device and method, and the device comprises a heat touch assembly which comprises a heat collection ring, the heat collection ring surrounds a transmission chain, and the interior of the heat collection ring is hollow and is a sintered heat conduction pipe; and the conduction assembly comprises a temperature measuring groove, a thermocouple is arranged in the temperature measuring groove, and the thermocouple is in contact with the heat contact assembly. The heat collecting ring surrounds the periphery of the transmission chain; measuring the temperature of the heat collecting ring by using the thermocouple; and the temperature transmitter converts a temperature signal into an electric signal and outputs the electric signal to the visual terminal. Multiple structures are flexibly combined and utilized, the effect of accurately measuring the temperature is achieved, and the purpose of efficiently knowing the temperature change in the slag dryer in real time on the premise that the chain is not contacted is achieved. And moreover, the temperature measuring device with a special structure is safe in temperature detection process, and high-temperature accidents cannot be caused.

Description

Technical Field

[0001] The invention relates to the field of dry slag machines, and in particular to a chain temperature measuring device and a temperature measuring method thereof. Background Art

[0002] In the process of power generation in thermal power plants, due to the increasing demand for environmental protection and energy conservation, power plants are pursuing zero wastewater discharge and saving water resources, and gradually popularizing air-cooled dry slag discharge. Natural wind is used to absorb the heat of coal slag and part of the radiant heat of the boiler. Since the efficiency of air cooling is lower than that of water cooling, the scraping parts such as the transmission chain will lack cooling air and overheat. In order to intuitively understand the temperature of the transmission chain inside the dry slag machine and take cooling measures in time, the temperature is monitored by thermocouples. Since the transmission chain is rotating, if the thermocouple contacts it, the thermocouple will be worn out quickly due to the structure of the chain. If the temperature is not measured in contact, the measured temperature will be low, and the real temperature of the internal transmission chain cannot be correctly understood, which will bury hidden dangers for the safe operation of the boiler. Therefore, a device is designed that does not have direct contact with the chain, and through the special structure and the selection of special materials, the temperature monitoring of the chain is completed efficiently. And the specific operation mode and temperature taking logic are designed. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the invention of this application to avoid blurring the purpose of this section, the abstract of the specification and the title of the invention, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the problem that if the thermocouples existing in the above-mentioned and / or prior arts come into contact with the chain, the thermocouples will be worn out quickly due to the structure of the chain, and if the temperature is measured without contact, the measured temperature will be too low, and the actual temperature of the internal transmission chain cannot be correctly understood, which will pose a hidden danger to the safe operation of the boiler, the present invention is proposed.

[0005] Therefore, the technical problem to be solved by the present invention is to design a device that does not come into direct contact with the chain and that can efficiently monitor the temperature of the chain through the particularity of the structure and the selection of special materials.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a chain temperature measuring device, comprising a heat contact component, including a heat collecting ring, the heat collecting ring surrounds the outside of the transmission chain, and the inside is hollow and is a sintered heat conducting pipe;

[0007] The conduction component comprises a temperature measuring tank, wherein a thermocouple is built in the temperature measuring tank, and the thermocouple is in contact with the heat contact component.

[0008] As a preferred solution of the chain temperature measuring device of the present invention, wherein: the heat collecting ring is a non-fully enclosed structure, and is sleeved on the transmission chain;

[0009] The heat collecting ring is not in contact with the transmission chain.

[0010] As a preferred solution of the chain temperature measuring device described in the present invention, wherein: the horizontal section of the heat collecting ring is a rounded rectangle, and the heat collecting ring is a C-shaped structure;

[0011] The heat collecting ring surrounds the transmission chain and does not contact it.

[0012] As a preferred solution of the chain temperature measuring device described in the present invention, wherein: the heat collecting ring includes an inner side surface and an outer side surface, and a base is provided in the middle of the outer side surface;

[0013] The base is fixedly connected with an extended connecting rod;

[0014] The extended connecting rod is not in direct contact with the heat collecting ring, and the outer wall is provided with a temperature-reducing coating.

[0015] As a preferred solution of the chain temperature measuring device of the present invention, wherein: the temperature measuring tank is placed inside the extended connecting rod;

[0016] The bottom of the groove of the temperature measuring tank is a curved surface, which matches the head of the thermocouple.

[0017] As a preferred solution of the chain temperature measuring device described in the present invention, the side opening of the dry slag machine housing is provided with a through pipe for movably connecting the temperature measuring component;

[0018] The extended connecting rod is located inside the through pipe and is slidably connected thereto.

[0019] As a preferred solution of the chain temperature measuring device described in the present invention, wherein: the temperature measuring component includes a pipe seat flange, a temperature transmitter, and a transmitter flange;

[0020] The pipe seat flange is placed at the end of the through pipe and is connected with the transmitter flange in a matching manner;

[0021] The temperature transmitter is fixedly connected to the transmitter flange, and the extended connecting rod extends from the transmitter flange.

[0022] As a preferred solution of the chain temperature measuring device described in the present invention, the heat collecting ring is an aluminum 240° non-fully enclosed C-shaped structure;

[0023] The thermocouple is an armored K type;

[0024] The extended connecting rod is made of ceramic.

[0025] The beneficial effects of the present invention are as follows: the effect of accurate temperature measurement is achieved by flexibly combining a variety of structures, and the temperature changes inside the dry slag machine can be efficiently and real-time understood without contacting the chain.

[0026] The temperature measurement logic of the device itself needs to be efficient, rapid and safe.

[0027] Therefore, the technical problem to be solved by the present invention is to design a specific operation mode and temperature taking logic.

[0028] In order to solve the above technical problems, the present invention also provides the following technical solutions: a chain temperature measurement method, comprising the chain temperature measurement device, and surrounding the heat collecting ring around the periphery of the transmission chain;

[0029] Using the thermocouple to measure the temperature of the heat collecting ring;

[0030] The temperature transmitter converts the temperature signal into an electrical signal and outputs it to a visual terminal.

[0031] As a preferred solution of the chain temperature measurement method described in the present invention, the thermal conductivity and specific heat capacity of the aluminum material of the heat collecting ring are utilized to quickly respond to changes in the temperature of the transmission chain.

[0032] As a preferred solution of the chain temperature measurement method described in the present invention, when the transmission chain is heated up, the three inner surfaces radiate heat energy to the heat collecting ring at the same time, quickly and evenly heat up and transfer the temperature to the thermocouple to complete the temperature measurement;

[0033] When the transmission chain is cooled down: the temperature of the heat collecting ring is higher than that of the transmission chain, and the three inner surfaces are cooled down evenly at the same time and the temperature is transferred to the outer surface to reach the same temperature as that of the transmission chain.

[0034] The beneficial effects of the present invention are as follows: the temperature taking logic is reasonable, and the temperature detection process of the temperature measuring device with a special structure is safe, and no high temperature accidents will occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0036] Figure 1 A schematic diagram of the simplest model structure of a chain temperature measuring device according to an embodiment of the present invention;

[0037] Figure 2A schematic diagram of the overall cross-sectional structure of a chain temperature measuring device according to an embodiment of the present invention;

[0038] Figure 3 A schematic diagram of the overall three-dimensional structure of a chain temperature measuring device according to an embodiment of the present invention;

[0039] Figure 4 A schematic diagram of the heat collecting ring structure of a chain temperature measuring device according to an embodiment of the present invention;

[0040] Figure 5 A schematic flow chart of a chain temperature measurement method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0042] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0043] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0044] Furthermore, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0045] Example 1

[0046] Reference Figure 1 , This embodiment provides a chain temperature measuring device, including a heat contact component 100, including a heat collecting ring 101, the heat collecting ring 101 surrounds the outside of the transmission chain A, and the inside is hollow and made of a sintered heat conducting pipe material;

[0047] Furthermore, the hollowness of the heat collecting ring 101 can ensure that the temperature can be transmitted to the entire structure at the fastest speed, thereby achieving efficient heat conduction.

[0048] The conduction component 200 includes a temperature measuring tank 201, which has a thermocouple 202 built therein, and the thermocouple 202 contacts the heat contact component 100. The temperature measuring tank 201 provides a safe temperature measurement environment for the temperature measurement main device, and the thermocouple 202 serves as a direct component for temperature conduction.

[0049] Example 2

[0050] Reference Figure 1-2 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment, and is different from the previous embodiment in that: the heat collecting ring 101 is a non-fully enclosed structure, which is sleeved on the transmission chain A; the non-fully enclosed structure includes any shape with an opening, which will cause the heat conduction speed to slow down, the thermal conductivity to decrease, and the opening will cause the heat dissipation ability to weaken. It is also not convenient to flexibly set the temperature measurement distance and it is not convenient to maintain a safe distance from the high-temperature chain.

[0051] Furthermore, the heat collecting ring 101 does not contact the transmission chain A. As the underlying logic of the technical solution, contacting the chain is equivalent to indirectly making the direct temperature measuring device contact the rotating transmission chain. Wear and high temperature will reduce the service life of the device and increase safety hazards.

[0052] Example 3

[0053] Reference Figure 1-4 , which is the third embodiment of the present invention. This embodiment is based on the previous embodiment, and is different from the previous embodiment in that: the horizontal section of the heat collecting ring 101 is a rounded rectangle with a C-shaped structure, which further defines the structural state of the heat collecting ring 101. It can be confirmed that the heat collecting ring is an open ring. The ring shape can ensure that at a suitable distance, the temperature sensing efficiency of each heat collecting ring 101 is the same, and the heat dissipation efficiency will be more balanced, and there will be no local overheating that affects the structural stability;

[0054] In detail, the heat collecting ring 101 surrounds the transmission chain A without contacting it. The surrounding state can be confirmed, and the ideal temperature measurement distance is to make the chain in the circle of the heat collecting ring 101.

[0055] Furthermore, the heat collecting ring 101 includes an inner side surface M and an outer side surface N, and a base 102 with a heat insulating effect is provided in the middle of the outer side surface N. The effect of the combined cross-sectional curved rectangular surface of the inner and outer sides not only ensures the stability of the structure, but also allows the heat collecting ring to operate efficiently in both the heat collecting and heat dissipating states. If the cross-section is not rectangular but circular, there will be no inner and outer side surfaces, which will cause the heat conduction of the heat collecting ring 101 to be unbalanced. The inner side surface M of the technical solution is mainly responsible for heat collecting, and the outer side surface N plays a role in heat dissipation, each performing its own function to improve efficiency;

[0056] Furthermore, the base 102 is fixedly connected with an extended connecting rod 203. The main function of the extended connecting rod 203 is to connect the upper and lower parts, connect the temperature measurement related components, and the other end is connected to the base 102. The base has a good heat insulation effect and will not affect the normal use of the connecting rod;

[0057] Specifically, the extended connecting rod 203 is not in direct contact with the heat collecting ring 101, but is fixed at the end of the base 102, and the outer wall is provided with a cooling coating to further prevent the high temperature from affecting the use of the staff. The temperature measuring tank 201 is placed inside the extended connecting rod 203;

[0058] The bottom of the groove of the temperature measuring tank 201 is a curved surface, which matches the head of the thermocouple 202 .

[0059] Example 4

[0060] Reference Figure 1-4 , which is the fourth embodiment of the present invention, is based on the previous embodiment, and is different from the previous embodiment in that: a through-tube 204 is provided in the side opening of the dry slag machine housing for movably connecting the temperature measuring component 300, and the through-tube 204 does not participate in the entire temperature measuring process, but exists as an auxiliary fixing component;

[0061] The extended connecting rod 203 is located inside the through tube 204 and is slidably connected thereto, so that the thermocouple 202 can move flexibly.

[0062] Further, the temperature measuring assembly 300 includes a pipe base flange 301, a temperature transmitter 302, and a transmitter flange 303;

[0063] In detail, the pipe seat flange 301 is placed at the end of the through pipe 204 and is connected with the transmitter flange 303. The flanges are made of stainless steel 304 to maintain the fixing effect as much as possible while avoiding the influence of high temperature;

[0064] The temperature transmitter 302 is fixedly connected to the transmitter flange 303, and the extended connecting rod 203 extends from the transmitter flange 303, thereby fixing the components at both ends.

[0065] Example 5

[0066] Reference Figure 1-4 , which is the fifth embodiment of the present invention, is based on the previous embodiment, and is different from the previous embodiment in that: the heat collecting ring 101 is an aluminum 240° non-fully enclosed C-shaped structure;

[0067] Thermocouple 202 is an armored K type, which can maintain structural stability in an environment of 2000°C, has strong heat resistance, and has a short response time;

[0068] The extended connecting rod 203 is made of ceramics in order to meet the high temperature resistance and insulation properties. The thermal insulation effect of ceramics is also more suitable for direct use by staff.

[0069] Example 6

[0070] Reference Figure 1-5 , which is the sixth embodiment of the present invention, and this embodiment provides a chain temperature measurement method. This embodiment is based on the previous embodiment, and is different from the previous embodiment in that: the heat collecting ring 101 is surrounded on the periphery of the transmission chain A;

[0071] The temperature of the heat collecting ring 101 is measured using a thermocouple 202;

[0072] The temperature transmitter 302 converts the temperature signal into an electrical signal and outputs it to the visual terminal.

[0073] When the transmission chain heats up: the three sides of the inner side M radiate heat energy to the heat collecting ring 101 at the same time, quickly and evenly heat up and transfer the temperature to the thermocouple 202 to complete the temperature measurement;

[0074] When the transmission chain cools down: the temperature of the heat collecting ring 101 is higher than that of the transmission chain A, and the three inner surfaces N cool down evenly at the same time and transfer the temperature to the outer surface M to reach the same temperature as that of the transmission chain A.

[0075] Efficient temperature transfer is achieved through the heat radiation effect and anti-heat radiation effect on both sides.

[0076] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0077] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0078] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0079] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A chain temperature measuring device, characterized in that: include, The heat contact component (100) comprises a heat collecting ring (101), wherein the heat collecting ring (101) surrounds the outside of the transmission chain (A) and has a hollow interior which is a sintered heat conducting pipe; The conduction component (200) comprises a temperature measuring tank (201), wherein the temperature measuring tank (201) has a built-in thermocouple (202), and the thermocouple (202) is in contact with the thermal contact component (100).

2. A chain temperature measuring device according to claim 1, characterized in that: The heat collecting ring (101) is a non-fully enclosed structure and is sleeved on the transmission chain (A); The heat collecting ring (101) does not contact the transmission chain (A).

3. A chain temperature measuring device according to claim 1, characterized in that: The horizontal section of the heat collecting ring (101) is a rounded rectangle, and the heat collecting ring (101) is a C-shaped structure; The heat collecting ring (101) surrounds the transmission chain (A) without contacting it.

4. A chain temperature measuring device according to claim 2 or 3, characterized in that: The heat collecting ring (101) comprises an inner side surface (M) and an outer side surface (N), and a base (102) is provided at a middle position of the outer side surface (N); The base (102) is fixedly connected with an extended connecting rod (203); The extended connecting rod (203) is not in direct contact with the heat collecting ring (101), and a temperature-reducing coating is provided on the outer wall.

5. A chain temperature measuring device according to claim 4, characterized in that: The temperature measuring tank (201) is placed inside the extended connecting rod (203); The bottom of the groove of the temperature measuring tank (201) is a curved surface, which matches the head of the thermocouple (202).

6. A chain temperature measuring device according to claim 5, characterized in that: A through-tube (204) is provided in a side opening of the shell of the slag dryer for movably connecting the temperature measuring component (300); The extended connecting rod (203) is located inside the through pipe (204) and is slidably connected thereto.

7. A chain temperature measuring device according to claim 6, characterized in that: The temperature measurement component (300) comprises a pipe base flange (301), a temperature transmitter (302), and a transmitter flange (303); The pipe seat flange (301) is placed at the end of the through pipe (204) and is connected to the transmitter flange (303); The temperature transmitter (302) is fixedly connected to the transmitter flange (303), and the extended connecting rod (203) extends from the transmitter flange (303).

8. A chain temperature measuring device according to claim 4, characterized in that: The heat collecting ring (101) is an aluminum 240° non-fully enclosed C-shaped structure; The thermocouple (202) is an armored K type; The extended connecting rod (203) is made of ceramic.

9. A chain temperature measurement method, characterized in that: The chain temperature measuring device comprises the chain temperature measuring device as claimed in claim 8, and The heat collecting ring (101) is surrounded on the periphery of the transmission chain (A); Using the thermocouple (202) to measure the temperature of the heat collecting ring (101); The temperature transmitter (302) converts the temperature signal into an electrical signal and outputs it to a visual terminal.

10. A chain temperature measurement method according to claim 9, characterized in that: By utilizing the thermal conductivity and specific heat capacity of the aluminum material of the heat collecting ring (101), the change in the temperature of the transmission chain (A) can be quickly responded to.

11. A chain temperature measurement method according to claim 9, characterized in that: When the transmission chain heats up: the three sides of the inner side surface (M) simultaneously radiate heat energy to the heat collecting ring (101), quickly and evenly heat up, and transfer the temperature to the thermocouple (202) to complete the temperature measurement; When the transmission chain cools down: the temperature of the heat collecting ring (101) is higher than that of the transmission chain (A), the three sides of the inner side surface (N) cool down evenly at the same time and transfer the temperature to the outer side surface (M) to reach the same temperature as that of the transmission chain (A).

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