CN113931749B - Combustion engine air inlet heating system - Google Patents

Abstract

The invention discloses a gas turbine inlet air heating system, which comprises a heating unit, a heat source and a water pump, wherein the heating unit comprises a heat exchanger, the heat source is connected with one side of the heat exchanger, the water pump is connected with the other side of the heat exchanger, and a connecting assembly is arranged on a pipeline between the heat source and the heat exchanger; the adjusting unit comprises an adjusting pipeline, the adjusting pipeline comprises a first connecting end and a second connecting end, the first connecting end is connected with the pipeline between the heat exchanger and the heat source, the second connecting end is connected with the pipeline between the heat exchanger and the water pump, and a first adjusting valve is arranged on the adjusting pipeline; the inlet air of the gas turbine can be heated, and the load factor of the gas turbine is improved; when the combined cycle unit is applied to a gas turbine combined cycle unit, the operation modes that the total output of the unit combined cycle is unchanged and the load factor of the gas turbine is increased can be realized, and the pipeline is connected by the connecting component in the system, so that the installation and the disassembly are fast and convenient after all, and the combined cycle unit cannot loosen in the use process.

Description

Combustion engine air inlet heating system

Technical Field

The invention relates to the field of combustion engine heating, in particular to a combustion engine air inlet heating system.

Background

After a Combined-Cycle Gas Turbine (CCGT) unit is put into operation, the operating conditions of the unit are affected by factors such as power grid distribution and the environment where the unit is located, and thus different operating characteristics and various performance requirements of owners are difficult to meet. There is a mismatch between the unit performance and the user requirements. For example, when the working condition is operated in winter, the full load output of the unit is greatly increased but the efficiency is reduced due to lower environmental temperature; if the power grid does not need a large power supply amount at this time, the power plant operates under partial load, so that the economy of the unit is further reduced. In addition, the connecting mode among all pipelines in the gas turbine system adopts the traditional sleeve joint, and the mode has the disadvantages of complex installation, inconvenient disassembly, insecurity in the using process, and moving looseness and falling off.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments, and some simplifications or omissions may be made in this section as well as in the abstract and title of the application to avoid obscuring the purpose of this section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made keeping in mind the above problems occurring in the prior art and/or the problems occurring in the prior art.

Therefore, the technical problem to be solved by the invention is that the connection mode between all pipelines in the gas turbine system is more traditional sleeve joint, and the mode has the disadvantages of complex installation, inconvenient disassembly and insecure use.

In order to solve the technical problems, the invention provides the following technical scheme: a gas turbine inlet air heating system comprises a heating unit, a heat source and a water pump, wherein the heating unit comprises a heat exchanger, the heat source is connected with one side of the heat exchanger, the water pump is connected with the other side of the heat exchanger, and a connecting assembly is arranged on a pipeline between the heat source and the heat exchanger;

the adjusting unit comprises an adjusting pipeline, the adjusting pipeline comprises a first connecting end and a second connecting end, the first connecting end is connected with the pipeline between the heat exchanger and the heat source, the second connecting end is connected with the pipeline between the heat exchanger and the water pump, and a first adjusting valve is arranged on the adjusting pipeline.

As a preferable mode of the intake air heating system of the combustion engine of the present invention, wherein: the heat exchanger is arranged in an air inlet chamber of the combustion engine, the water pump is connected to the condensed water pipeline, and the water pump conveys heat source water which heats air entering the combustion engine to the condensed water pipeline.

As a preferable aspect of the intake air heating system for the combustion engine of the present invention, wherein: the heating unit further comprises a second regulating valve, and the second regulating valve is arranged on the pipeline between the heat exchanger and the first connecting end.

As a preferable mode of the intake air heating system of the combustion engine of the present invention, wherein: the connecting assembly comprises an interface assembly connected with the heat exchanger pipeline and a joint assembly connected with the heat source pipeline; the interface component comprises an interface piece arranged on the gas turbine, the interface piece is provided with a first through hole, and the end part of the interface piece is provided with a first connecting disc; the joint component comprises an air inlet pipe head and a second connecting disc connected with the end part of the air inlet pipe head, the air inlet pipe head is provided with a second through hole, and the first connecting disc is connected with the second connecting disc.

As a preferable mode of the intake air heating system of the combustion engine of the present invention, wherein: the end face, in contact with the second connecting disc, of the first connecting disc is provided with guide openings distributed along the circumference, the second connecting disc is provided with elongated slots, the number of the elongated slots is consistent with that of the guide openings, the positions of the elongated slots correspond to those of the guide openings, pin shafts are arranged in the elongated slots, and one ends of the pin shafts point to the guide openings.

As a preferable mode of the intake air heating system of the combustion engine of the present invention, wherein: the inside ring channel that is provided with of first flange, the direction mouth be provided with run through extremely the guide way of ring channel, the guide way includes first end and second end, first end and direction mouth intercommunication, second end and ring channel intercommunication, the distance that the guide way is apart from the ring channel axle center increases from first end to second end linearity, the width of direction mouth with the width of guide way is unanimous.

As a preferable aspect of the intake air heating system for the combustion engine of the present invention, wherein: two side surfaces of the guide groove are provided with wide grooves extending along the axial direction, and the width of each wide groove is smaller than that of the guide groove; a circular truncated cone is arranged at one end of the pin shaft, which is connected with the guide port, and the diameter of the circular truncated cone is larger than that of the pin shaft; the pin shaft is connected with threads, one end of the pin shaft, which is far away from the circular truncated cone, is connected with a positioning nut, and the end face of the positioning nut is connected with the end face of the second connecting disc in a sliding manner; the hinge pin is further connected with a positioning ring, the positioning ring and the positioning nut are respectively located on two end faces of the second connecting disc, and the positioning ring is connected with the end face of the second connecting disc in a sliding mode.

As a preferable mode of the intake air heating system of the combustion engine of the present invention, wherein: the four guide openings, the four elongated slots and the four pin shafts are arranged, hooks are arranged on the positioning rings, a first spring is connected between every two adjacent positioning rings, and the first springs are connected to the hooks of the two positioning rings respectively.

As a preferable mode of the intake air heating system of the combustion engine of the present invention, wherein: the second connecting disc is provided with an annular groove, an annular disc is arranged in the annular groove, a penetrating adjusting groove is formed in the annular disc, the pin shaft penetrates through the adjusting groove, and the adjusting groove is V-shaped; the adjusting groove is formed by enclosing two inclined surfaces and an arc surface, the two inclined surfaces are symmetrical, the arc surface is concentric with the annular disc, and the distance between the intersection line of the arc surface and the inclined surfaces and the circle center of the annular disc is longer than the distance between the intersection line of the two inclined surfaces and the circle center of the annular disc.

As a preferable mode of the intake air heating system of the combustion engine of the present invention, wherein: the second through hole is internally connected with a fixed disc, the fixed disc is provided with a circulation hole, and the fixed disc is also provided with a touch rod extending towards the direction of the interface component;

an annular boss is arranged on the end face of the second connecting disc, and a sealing groove is correspondingly arranged on the end face of the first connecting disc; the connector assembly is characterized in that a cylindrical groove is arranged in the first through hole, the inner diameter of the cylindrical groove is larger than that of the first through hole, a cylindrical body is arranged at one end, close to the connector assembly, of the cylindrical groove, a second spring is arranged between the cylindrical body and the other end of the cylindrical groove, a circulation groove is formed in the side face of the cylindrical body, and one end, close to the connector assembly, of the cylindrical body is conical.

The invention has the beneficial effects that: the inlet air of the gas turbine can be heated, and the load factor of the gas turbine is improved; when the connecting component is applied to a gas turbine combined cycle unit, the operation modes that the total output of the unit combined cycle is unchanged and the load factor of the gas turbine is increased can be realized, and the connecting component is adopted in the system to connect pipelines, so that the installation and the disassembly are both quick and convenient after all, and the looseness can not occur in the use process.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

FIG. 1 is a schematic diagram of an intake air heating system of a combustion engine according to an embodiment of the invention;

FIG. 2 is a schematic diagram illustrating the operation of an intake air heating system of a combustion engine according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a connecting assembly in an intake air heating system of a combustion engine according to an embodiment of the invention;

FIG. 4 is a schematic cross-sectional view taken along line B of FIG. 3 of an intake air heating system for a combustion engine according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an interface in an intake air heating system of a combustion engine according to an embodiment of the invention;

FIG. 6 is a schematic end view of a second connecting disc in an intake air heating system of a combustion engine according to an embodiment of the invention;

FIG. 7 is a schematic diagram of an annular disc in an intake air heating system of a combustion engine according to an embodiment of the present invention;

fig. 8 is a schematic diagram of connection components in an intake air heating system of a combustion engine according to an embodiment of the invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures of the present invention are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention is described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional views illustrating the device structures are not enlarged partially according to the general scale for convenience of illustration, and the drawings are only exemplary, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 2, the present embodiment provides an intake air heating system for a combustion engine, including a heating unit 100 and a regulating unit 200, where the heating unit 100 includes a heat exchanger 101, a heat source 102 connected to one side of the heat exchanger 101, and a water pump 103 connected to the other side of the heat exchanger 101, and a pipeline between the heat source 102 and the heat exchanger 101 is provided with a connecting assembly a; the heat source 102 is used to provide heat source water to the heat exchanger 101, which may be a heat exchanger capable of gas-water heat exchange, such as a coil heat exchanger. The combustion engine may in particular be a gas turbine in a gas turbine combined cycle plant. The water pump is used for pressurizing heat source water after heating the gas inlet of the gas turbine to a certain pressure so as to convey the heat source water to a condensed water pipeline of the gas turbine combined cycle unit.

Further, the adjusting unit 200 includes an adjusting pipe 201, the adjusting pipe 201 includes a first connection end 201a and a second connection end 201b, the first connection end 201a is connected to the pipe between the heat exchanger 101 and the heat source 102, the second connection end 201b is connected to the pipe between the heat exchanger 101 and the water pump 103, and a first adjusting valve 202 is disposed on the adjusting pipe 201. The adjusting unit 200 can increase the adjusting interval of the water side system of the gas turbine air inlet heating device while meeting the safe flow requirement of the operation of the water pump 103 by combining with the main pipeline, thereby realizing the control of the heating temperature of the gas turbine air inlet in a larger range and increasing the flexibility of the control. The heat exchanger 101 is provided in an intake chamber 104 of the internal combustion engine, the water pump 103 is connected to a condensed water pipe 105, and the water pump 103 sends heat source water, which heats engine intake air, to the condensed water pipe 105. The heat exchanger is arranged between the coarse filter screen and the fine filter screen in the air inlet chamber. The heating unit 100 further comprises a second regulating valve 106, the second regulating valve 106 being arranged on the conduit between the heat exchanger 101 and the first connection end 201 a. The economizer in the gas turbine combined cycle unit can be used as a heat source 102, hot water in the economizer is used for heating inlet air of the gas turbine, waste heat of the unit is fully utilized, and resources are saved while the operation efficiency of the unit is improved.

The flow of the heat source water in the heat exchanger can be controlled through the second regulating valve 106, the control of the inlet air heating temperature of the gas turbine can be realized under the conditions of different air inlet rates, different working conditions, different environmental conditions and the like, and the operation efficiency of the unit is further optimized. The bypass first regulating valve 202 is combined with the second regulating valve 106 to regulate the total flow of water, so that the requirement of the heat exchanger can be met, and meanwhile, the safety flow requirement of the operation of the water pump is met.

Preferably, two flow meters are further disposed on the pipeline of the heating unit 100, wherein one flow meter is disposed on the pipeline before the first connection end 201a, i.e., the pipeline between the first connection end 201a and the heat source 102. A second flow meter is arranged on the pipe between the second connection end 201b and the heat exchanger. The two flowmeters, the first regulating valve and the second regulating valve can realize the simultaneous regulation of the flow of heat source water in the heat exchanger and the flow of water in the water pump.

The specific working principle is as follows: the heat exchanger is arranged in an air inlet chamber of the gas turbine, and air enters the gas turbine through the heat exchanger at a certain flow rate. The heat source water enters the heat exchanger through the pipeline to carry out air-water heat exchange, and the air to be fed into the gas turbine is heated to the temperature which is matched with the set load factor in opposite directions. The water pump 103 can convey the heat source water subjected to gas-water heat exchange from the heat exchanger 101 to the condensed water pipe 105,

example 2

Referring to fig. 3 to 8, a second embodiment of the present invention is based on the previous embodiment, and is different from the previous embodiment in that:

the connecting assembly A comprises an interface assembly 300 connected with a heat exchanger 101 pipeline and a joint assembly 400 connected with a heat source 102 pipeline; wherein interface module 300 fixed connection is on heat exchanger 101, for the import of heat exchanger 101 pipeline, interface module 300 is including setting up interface 301 on heat exchanger 101, interface 301 is provided with first through-hole 301a, interface 301 tip is provided with first connection pad 302, first connection pad 302 is the disc, joint module 400 is connected with outside gas-supply pipe, joint module 400 includes air inlet pipe head 401, second connection pad 402 with air inlet pipe head 401 end connection, air inlet pipe head 401 is provided with second through-hole 401a, first connection pad 302 is connected with second connection pad 402, when connecting, second connection pad 402 is just and the terminal surface laminating with first connection pad 302.

The end face of the first connecting disc 302, which is in contact with the second connecting disc 402, is provided with guide openings 302a distributed along the circumference, in the embodiment, the number of the guide openings 302a is 4, and the guide openings are uniformly distributed along the circumference, correspondingly, the second connecting disc 402 is provided with long grooves 402a, the long grooves 402a penetrate along the axial direction of the second connecting disc 402, and the long grooves 402a extend along the radial direction of the second connecting disc 402; the number of the elongated slots 402a is consistent with the number and the position of the guide opening 302a, the elongated slots 402a are provided with pins 403, the pins 403 can move along the radial direction of the second connecting disc 402 in the elongated slots 402a, and one end of each pin 403 points to the guide opening 302a.

The annular groove 302b is arranged inside the first connecting disc 302, the distance from the inner side surface of the annular groove 302b to the center of the first connecting disc 302 is consistent with the distance from the guide opening 302a to the center of the first connecting disc 302, the guide opening 302a is provided with a guide groove 302c penetrating through the annular groove 302b, and the guide groove 302c moves in an oblique direction, namely, does not extend along the radial direction of the first connecting disc 302 and does not extend along the axial direction.

Specifically, the guide groove 302c includes a first end 302d and a second end 302e, that is, two ends of the guide groove 302c are divided into the first end 302d and the second end 302e, the first end 302d is communicated with the guide opening 302a, the second end 302e is communicated with the annular groove 302b, the distance from the guide groove 302c to the axis of the annular groove 302b is linearly increased from the first end 302d to the second end 302e, and the width of the guide opening 302a is consistent with the width of the guide groove 302 c. Therefore, the second end 302e of the guide groove 302c extends to the outer periphery of the annular groove 302b, and a surface of the guide groove 302c near the axial center is also formed with an inclined surface.

Furthermore, two side surfaces of the guide groove 302c are provided with wide grooves 302f extending along the axial direction, and the width of the wide grooves 302f is smaller than that of the guide groove 302 c; one end of the pin shaft 403 connected with the guide opening 302a is provided with a round table 403a, and the diameter of the round table 403a is larger than that of the pin shaft 403. The diameter of the pin 403 is smaller than the width of the wide groove 302f, and the diameter of the round table 403a is larger than the width of the wide groove 302f and smaller than the width of the guide opening 302a.

Further, a screw thread is connected to the pin shaft 403, a positioning nut 404 is connected to one end, away from the circular truncated cone 403a, of the pin shaft 403, and the end face of the positioning nut 404 is connected with the end face of the second connecting disc 402 in a sliding manner; therefore, the positioning nut 404 limits the moving distance of the pin 403 to the guide opening 302 a; the pin shaft 403 is further connected with a positioning ring 405, the positioning ring 405 and the positioning nut 404 are respectively located on two end faces of the second connecting disc 402, and the positioning ring 405 is connected with the end face of the second connecting disc 402 in a sliding mode. The engagement of the positioning ring 405 and the positioning nut 404 limits the axial displacement of the pin 403, so that the pin 403 can only move in the radial direction of the second connecting disc 402 in the long groove 402 a.

It should be noted that, in this embodiment, four guiding openings 302a, four elongated slots 402a, and four pin shafts 403 are provided, hooks 405a are provided on the positioning rings 405, two hooks 405a are symmetrically provided, a first spring 406 is connected between two adjacent positioning rings 405, and the first springs 406 are respectively connected to the hooks 405a of the two positioning rings 405. Therefore, the four positioning rings 405 are connected by the four first springs 406, and the elastic force of the four first springs 406 also causes the 4 pins 403 to be tightened toward the axis of the second connecting disc 402, so that once one of the pins 403 moves away from the axis of the second connecting disc 402, the pin tends to be reset by the pulling force of the first spring 406.

Therefore, when the connection is performed, the second connection disc 402 is firstly pushed to move toward the first connection disc 302, so that the circular truncated cone 403a is inserted into the guide opening 302a, and in the process of continuing the pushing, the circular truncated cone 403a moves from the first end 302d to the second end 302e along the guide groove 302c, and in the moving process, the pin 403 is located in the wide groove 302f, and the 4 pin 403 are spread outwards, that is, the first spring 406 is extended, and once the circular truncated cone 403a moves to the second end 302e and slides into the annular groove 302b, the pin 403 contracts toward the center of the circle under the action of the first spring 406, and at this time, the circular truncated cone 403a is clamped in the annular groove 302b, so as to limit the disengagement of the pin 403, and the connection process of the interface assembly 300 and the connector assembly 400 is completed.

Further, the above is only the process of assembly, and therefore, disassembly work is also required; specifically, the second connecting disc 402 is provided with an annular groove 402b, the second connecting disc 402 is divided into two parts by the annular groove 402b, an annular disc 407 is arranged in the annular groove 402b, a through hole is arranged in the middle of the annular disc 407, so that the annular disc 407 is sleeved in the annular groove 402b, and the annular disc 407 can rotate in the annular groove 402 b.

The annular disc 407 is provided with a through adjusting groove 407a, the pin shaft 403 passes through the adjusting groove 407a, and the adjusting groove 407a is V-shaped. And the V-shaped tip of the adjustment groove 407a points in the direction of the center of the annular disk 407.

Specifically, the adjusting slot 407a is defined by two inclined surfaces 407b and an arc surface 407c, the two inclined surfaces 407b are symmetrical, the arc surface 407c is concentric with the annular disc 407, and the length of the intersection line of the arc surface 407c and the inclined surface 407b from the center of the annular disc 407 is greater than the length of the intersection line of the two inclined surfaces 407b from the center of the annular disc 407. Therefore, in a normal state, the pin 403 is located at the included angle formed by the two inclined surfaces 407b, during the process of plugging, the pin 403 will move towards the arc surface 407c at the included angle formed by the two inclined surfaces 407b of the adjusting slot 407a, and the movement of the pin 403 will not interfere with the state of the annular disc 407. When the joint assembly 400 needs to be removed, the annular disc 407 can be rotated, at this time, the inclined surface 407b of the adjusting groove 407a pushes the pin 403 to move toward the joint between the arc surface 407c and the inclined surface 407b, that is, at this time, the inclined surface 407b carries the pin 403 to move from the inner side to the outer side of the annular groove 302b until the pin moves to the second end 302e, and then the joint assembly 400 can be removed.

Further, a cylindrical groove 301b is formed in the first through hole 301a, the inner diameter of the cylindrical groove 301b is larger than that of the first through hole 301a, a cylindrical body 303 is formed in one end, close to the joint assembly 400, of the cylindrical groove 301b, when the end portion of the cylindrical body 303 abuts against the first through hole 301a, the first through hole 301a can be blocked, a second spring 304 is arranged between the cylindrical body 303 and the other end of the cylindrical groove 301b, the end portion of the cylindrical body 303 is pushed to abut against the first through hole 301a by the elastic force of the second spring 304, therefore, when the circulation is to be opened, the cylindrical body 303 needs to be separated from the first through hole 301a, and a circulation groove 303a is formed in the side surface of the cylindrical body 303, so that fluid can be conveyed. Wherein the end of the cylindrical body 303 proximate the joint assembly 400 is tapered. Correspondingly, a fixed disk 408 is connected in the second through hole 401a, the fixed disk 408 is provided with a through hole 408a, and the fixed disk 408 is further provided with an abutting rod 408b extending towards the direction of the interface component 300. When the interface module 300 and the connector module 400 are connected, the interference rod 408b can push the cylindrical body 303 to make the flow-through groove 303a communicate with the first through hole 301 a.

Preferably, an annular boss 402c is disposed on an end surface of the second connecting disc 402, a sealing groove 302g is correspondingly disposed on an end surface of the first connecting disc 302, when the connecting disc is inserted, the annular boss 402c is embedded into the sealing groove 302g, and the annular boss 402c and the sealing groove 302g are mounted to prevent fluid leakage by a sealing ring.

The implementation mode and principle of the embodiment are as follows: the first connecting disc 302 is aligned with the second connecting disc 402, then the pin 403 is inserted into the corresponding guide opening 302a, at this time, the round table 403a is inserted into the guide opening 302a, the second connecting disc 402 is pushed to move towards the first connecting disc 302, the round table 403a moves from the first end 302d to the second end 302e along the guide groove 302c, during this moving process, the pin 403 is located in the wide groove 302f, and the 4 pin 403 is spread outwards, i.e. the first spring 406 is extended, once the round table 403a moves to the second end 302e and slides into the annular groove 302b, the pin 403 contracts towards the center of the circle under the action of the first spring 406, at this time, the round table 403a is blocked in the annular groove 302b, so as to limit the separation of the pin 403, and the connection process of the interface assembly 300 and the connector assembly 400 is completed. When the joint assembly 400 needs to be removed, the annular disc 407 can be rotated, at this time, the inclined surface 407b of the adjusting groove 407a pushes the pin 403 to move toward the joint between the arc surface 407c and the inclined surface 407b, that is, at this time, the inclined surface 407b carries the pin 403 to move from the inner side to the outer side of the annular groove 302b until the pin moves to the second end 302e, and then the joint assembly 400 can be removed.

It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims (3)

1. An intake air heating system for a combustion engine, characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the heating unit (100) comprises a heat exchanger (101), a heat source (102) connected with one side of the heat exchanger (101), and a water pump (103) connected with the other side of the heat exchanger (101), wherein a connecting assembly (A) is arranged on a pipeline between the heat source (102) and the heat exchanger (101);

the adjusting unit (200) comprises an adjusting pipeline (201), the adjusting pipeline (201) comprises a first connecting end (201 a) and a second connecting end (201 b), the first connecting end (201 a) is connected with a pipeline between the heat exchanger (101) and the heat source (102), the second connecting end (201 b) is connected with a pipeline between the heat exchanger (101) and the water pump (103), and a first adjusting valve (202) is arranged on the adjusting pipeline (201);

the connecting assembly (A) comprises an interface assembly (300) in pipe connection with the heat exchanger (101), and a joint assembly (400) in pipe connection with the heat source (102); the interface component (300) comprises an interface piece (301) arranged on a gas turbine, the interface piece (301) is provided with a first through hole (301 a), and the end of the interface piece (301) is provided with a first connecting disc (302); the joint assembly (400) comprises an air inlet pipe head (401) and a second connecting disc (402) connected with the end part of the air inlet pipe head (401), the air inlet pipe head (401) is provided with a second through hole (401 a), and the first connecting disc (302) is connected with the second connecting disc (402);

guide openings (302 a) distributed along the circumference are formed in the end face, in contact with the second connecting disc (402), of the first connecting disc (302), long grooves (402 a) are formed in the second connecting disc (402), the number of the long grooves (402 a) is consistent with that of the guide openings (302 a), the positions of the long grooves (402 a) correspond to those of the guide openings, pin shafts (403) are arranged in the long grooves (402 a), and one ends of the pin shafts (403) point to the guide openings (302 a);

an annular groove (302 b) is formed in the first connecting disc (302), a guide groove (302 c) penetrating through the annular groove (302 b) is formed in the guide opening (302 a), the guide groove (302 c) comprises a first end (302 d) and a second end (302 e), the first end (302 d) is communicated with the guide opening (302 a), the second end (302 e) is communicated with the annular groove (302 b), the distance from the guide groove (302 c) to the axis of the annular groove (302 b) is increased linearly from the first end (302 d) to the second end (302 e), and the width of the guide opening (302 a) is consistent with that of the guide groove (302 c);

two side surfaces of the guide groove (302 c) are provided with wide grooves (302 f) extending along the axial direction, and the width of each wide groove (302 f) is smaller than that of the guide groove (302 c); a circular truncated cone (403 a) is arranged at one end, connected with the guide opening (302 a), of the pin shaft (403), and the diameter of the circular truncated cone (403 a) is larger than that of the pin shaft (403); the pin shaft (403) is connected with threads, one end, far away from the circular truncated cone (403 a), of the pin shaft (403) is connected with a positioning nut (404), and the end face of the positioning nut (404) is connected with the end face of the second connecting disc (402) in a sliding mode; the pin shaft (403) is also connected with a positioning ring (405), the positioning ring (405) and the positioning nut (404) are respectively positioned on two end faces of the second connecting disc (402), and the positioning ring (405) is in sliding connection with the end face of the second connecting disc (402);

the guide opening (302 a), the elongated slot (402 a) and the pin shaft (403) are four in number, hooks (405 a) are arranged on the positioning rings (405), a first spring (406) is connected between every two adjacent positioning rings (405), and the first springs (406) are respectively connected to the hooks (405 a) of the two positioning rings (405);

the second connecting disc (402) is provided with an annular groove (402 b), an annular disc (407) is arranged in the annular groove (402 b), a penetrating adjusting groove (407 a) is formed in the annular disc (407), the pin shaft (403) penetrates through the adjusting groove (407 a), and the adjusting groove (407 a) is V-shaped; the adjusting groove (407 a) is surrounded by two inclined surfaces (407 b) and an arc surface (407 c), the two inclined surfaces (407 b) are symmetrical, the arc surface (407 c) is concentric with the annular disc (407), and the length of the line of intersection of the arc surface (407 c) and the inclined surface (407 b) from the center of the annular disc (407) is greater than the length of the line of intersection of the two inclined surfaces (407 b) from the center of the annular disc (407);

a fixed disc (408) is connected in the second through hole (401 a), the fixed disc (408) is provided with a through hole (408 a), and the fixed disc (408) is also provided with a collision rod (408 b) extending towards the direction of the interface component (300);

an annular boss (402 c) is arranged on the end face of the second connecting disc (402), and a sealing groove (302 g) is correspondingly arranged on the end face of the first connecting disc (302); a cylindrical groove (301 b) is formed in the first through hole (301 a), the inner diameter of the cylindrical groove (301 b) is larger than that of the first through hole (301 a), a cylindrical body (303) is arranged at one end, close to the joint assembly (400), of the cylindrical groove (301 b), a second spring (304) is arranged between the cylindrical body (303) and the other end of the cylindrical groove (301 b), a circulation groove (303 a) is formed in the side face of the cylindrical body (303), and one end, close to the joint assembly (400), of the cylindrical body (303) is conical.

2. The combustion engine intake air heating system according to claim 1, wherein: the heat exchanger (101) is arranged in an air inlet chamber (104) of the combustion engine, the water pump (103) is connected to a condensed water pipeline (105), and the water pump (103) conveys heat source water which heats engine inlet air to the condensed water pipeline (105).

3. The combustion engine intake air heating system according to claim 2, wherein: the heating unit (100) further comprises a second regulating valve (106), the second regulating valve (106) being arranged on the conduit between the heat exchanger (101) and the first connection end (201 a).

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