CN217999734U

CN217999734U - Stirling engine advances exhaust system

Info

Publication number: CN217999734U
Application number: CN202222399977.8U
Authority: CN
Inventors: 殷青松; 阿古达木; 韩文鹏
Original assignee: Huare Energy Technology Suzhou Co ltd
Current assignee: Huare Energy Technology Suzhou Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2022-12-09
Anticipated expiration: 2032-09-09

Abstract

The utility model discloses a stirling engine advances exhaust system, including stirling engine unit, a controller, the air inlet pipeline, the exhaust pipeline, the gas holder, first pressure sensor, first air inlet solenoid valve, first filter, second air inlet solenoid valve, the second filter, exhaust solenoid valve and booster pump, stirling engine unit passes through the air inlet pipeline and communicates with second air inlet solenoid valve, first filter, first air inlet solenoid valve, first pressure sensor and gas holder in proper order, stirling engine unit passes through the exhaust pipeline and communicates with second filter, exhaust solenoid valve, booster pump in proper order; the utility model discloses do not need the low pressure gas cylinder, just can realize stirling's air intake and exhaust, optimize air intake and exhaust system's control logic, reduced the control degree of difficulty and reduced air intake and exhaust system's equipment cost and maintenance cost.

Description

Stirling engine advances exhaust system

Technical Field

The utility model relates to an advance exhaust system technical field, concretely relates to stirling advances exhaust system.

Background

At present, a working medium system of a Stirling engine is provided with a high-pressure gas cylinder and a low-pressure gas cylinder. When the Stirling engine needs power adjustment, working medium gas flows between the high-pressure bottle and the Stirling engine through the gas inlet pipeline and the gas exhaust pipeline, and when the working medium gas in the high-pressure bottle is insufficient, the working medium gas in the low-pressure gas bottle is supplemented into the high-pressure bottle through the gas supplementing pipeline. When the Stirling engine needs to discharge the working medium gas to the high-pressure bottle, the pressure of the discharged working medium gas is lower than the pressure of the working medium gas in the high-pressure bottle, so that the working medium gas can be discharged into the high-pressure bottle after being pressurized by the booster pump, and when the high-pressure bottle needs to be supplemented with air, the pressure of the working medium gas in the low-pressure gas bottle is lower than the pressure of the working medium gas in the high-pressure bottle, so that the working medium gas can be charged into the high-pressure bottle after being pressurized by the booster pump. Preferably, the cylinder is charged when the stirling engine exhaust and the cylinder charge occur simultaneously. Because the existence of low pressure gas cylinder leads to whole stirling to advance exhaust system and has had the gas supply pipeline all the way more, increased pipeline joint and leak point, the booster pump both will work when stirling exhausts, will work when the high-pressure cylinder is aerifyd again, make the control logic who advances exhaust system more complicated, and the capacity of low pressure gas cylinder is great moreover, according to the safety standard, need put it alone outdoors, avoid sunshine to penetrate directly, this will increase the length of gas supply pipeline, build ann's cost and maintenance cost. In view of the above disadvantages, it is necessary to design an intake and exhaust system of a stirling engine.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stirling advances exhaust system to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a stirling advances exhaust system, includes stirling unit, controller, air inlet pipeline, exhaust pipeline, gas holder, first pressure sensor, first air inlet solenoid valve, first filter, second air inlet solenoid valve, second filter, exhaust solenoid valve and booster pump, stirling unit is through air inlet pipeline in proper order with second air inlet solenoid valve, first filter, first air inlet solenoid valve, first pressure sensor and gas holder intercommunication, stirling unit is through exhaust pipeline in proper order with second filter, exhaust solenoid valve, booster pump intercommunication, the controller respectively with first pressure sensor, first air inlet solenoid valve, first filter, second air inlet solenoid valve, second filter, exhaust solenoid valve and booster pump electric connection.

Preferably, a needle valve is installed on an air inlet pipeline between the air storage tank and the first pressure sensor, and a safety valve is installed on the air inlet pipeline between the first pressure sensor and the first air inlet electromagnetic valve.

Preferably, install the evacuation solenoid valve on the exhaust pipe between second filter and the exhaust solenoid valve, evacuation solenoid valve and controller electric connection, install the tenth check valve on the exhaust pipe between exhaust solenoid valve and the booster pump, eleventh check valve and twelfth check valve are installed respectively to the exit end of booster pump, and the booster pump passes through connecting tube and first air inlet solenoid valve intercommunication, install first check valve on the connecting tube between booster pump and the first air inlet solenoid valve.

Preferably, the stirling engine unit comprises a first cylinder, a second cylinder, a third cylinder and a fourth cylinder, a second pressure sensor is installed on a pipeline of the first cylinder, a ninth check valve is installed between the pipeline of the first cylinder and an air inlet pipeline, an eighth check valve is installed between the pipeline of the first cylinder and an exhaust pipeline, and a first temperature sensor used for detecting the temperature of working medium gas in the first cylinder is installed on the first cylinder.

Preferably, a third pressure sensor is installed on the pipeline of the second cylinder, a seventh one-way valve is installed between the pipeline of the second cylinder and the air inlet pipeline, a sixth one-way valve is installed between the pipeline of the second cylinder and the air outlet pipeline, and a second temperature sensor used for detecting the temperature of the working medium gas in the second cylinder is installed on the second cylinder.

Preferably, a fourth pressure sensor is installed on a pipeline of the third cylinder, a fifth one-way valve is installed between the pipeline of the third cylinder and the air inlet pipeline, a fourth one-way valve is installed between the pipeline of the third cylinder and the exhaust pipeline, and a third temperature sensor used for detecting the temperature of the working medium gas in the third cylinder is installed on the third cylinder.

Preferably, a fifth pressure sensor is installed on a pipeline of the fourth cylinder, a third one-way valve is installed between the pipeline of the fourth cylinder and the air inlet pipeline, a second one-way valve is installed between the pipeline of the fourth cylinder and the exhaust pipeline, and a fourth temperature sensor used for detecting the temperature of the working medium gas in the fourth cylinder is installed on the fourth cylinder.

Preferably, the controller is electrically connected with the second pressure sensor, the third pressure sensor, the fourth pressure sensor, the fifth pressure sensor, the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor respectively, and the controller is also electrically connected with the alarm.

Compared with the prior art, the utility model relates to a stirling engine advances exhaust system, open through the first solenoid valve that admits air of controller control and second solenoid valve, fill into proper amount working medium gas in to the first cylinder of stirling engine unit, the second cylinder, third cylinder and the fourth cylinder, thereby realize the admit air of stirling engine unit, open through controller control exhaust solenoid valve and first solenoid valve that admits air, and control evacuation solenoid valve closes and the booster pump starts, discharge working medium gas in the first cylinder of stirling engine unit, the second cylinder, the third cylinder and the fourth cylinder into the gas holder, thereby realize the exhaust of stirling engine unit, just so do not need the low pressure gas cylinder, through the utility model discloses an after the improvement, the low pressure gas cylinder structure of stirling engine advances exhaust system has been removed, thereby the gas pipeline length of advancing exhaust system has been reduced, the interface on the gas pipeline has been reduced, thereby leakage point has been reduced; the utility model discloses do not need the low pressure gas cylinder, just can realize stirling's air intake and exhaust, optimize air intake and exhaust system's control logic, reduced the control degree of difficulty and reduced air intake and exhaust system's equipment cost and maintenance cost.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic structural diagram of an intake and exhaust system of a stirling engine according to the present invention.

In the drawings:

1. a Stirling engine unit; 2. a controller; 3. an air intake line; 4. an exhaust line; 5. connecting a pipeline; 101. a gas storage tank; 102. a needle valve; 103. a first pressure sensor; 104. a safety valve; 105. a first air intake solenoid valve; 106. a first check valve; 107. a first filter; 108. a second air intake solenoid valve; 109. a second one-way valve; 110. a third check valve; 111. a fourth check valve; 112. a fifth check valve; 113. a sixth check valve; 114. a seventh check valve; 115. an eighth check valve; 116. a ninth check valve; 117. a second pressure sensor; 118. a third pressure sensor; 119. a fourth pressure sensor; 120. a fifth pressure sensor; 121. a first temperature sensor; 122. a second temperature sensor; 123. a third temperature sensor; 124. a fourth temperature sensor; 125. an evacuation solenoid valve; 126. a second filter; 127. an exhaust solenoid valve; 128. a tenth check valve; 129. a booster pump; 130. an eleventh check valve; 131. a twelfth check valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a Stirling engine air inlet and exhaust system comprises a Stirling engine unit 1, a controller 2, an air inlet pipeline 3, an exhaust pipeline 4, an air storage tank 101, a first pressure sensor 103, a first air inlet electromagnetic valve 105, a first filter 107, a second air inlet electromagnetic valve 108, a second filter 126, an exhaust electromagnetic valve 127 and a booster pump 129, wherein the Stirling engine unit 1 is sequentially communicated with the second air inlet electromagnetic valve 108, the first filter 107, the first air inlet electromagnetic valve 105, the first pressure sensor 103 and the air storage tank 101 through the air inlet pipeline 3, the Stirling engine unit 1 is sequentially communicated with the second filter 126, the exhaust electromagnetic valve 127 and the booster pump 129 through the exhaust pipeline 4, and the controller 2 is electrically connected with the first pressure sensor 103, the first air inlet electromagnetic valve 105, the first filter 107, the second air inlet electromagnetic valve 108, the second filter 126, the exhaust electromagnetic valve 127 and the booster pump 129 respectively.

In this embodiment, a needle valve 102 is installed on the intake pipe 3 between the air tank 101 and the first pressure sensor 103, and a safety valve 104 is installed on the intake pipe 3 between the first pressure sensor 103 and the first intake solenoid valve 105.

In this embodiment, an exhaust solenoid valve 125 is installed on the exhaust pipe 4 between the second filter 126 and the exhaust solenoid valve 127, the exhaust solenoid valve 125 is electrically connected to the controller 2, a tenth check valve 128 is installed on the exhaust pipe 4 between the exhaust solenoid valve 127 and the booster pump 129, an eleventh check valve 130 and a twelfth check valve 131 are installed at the outlet end of the booster pump 129, the booster pump 129 is communicated with the first air inlet solenoid valve 105 through a connecting pipe 5, and a first check valve 106 is installed on the connecting pipe 5 between the booster pump 129 and the first air inlet solenoid valve 105.

The stirling engine unit 1 in this embodiment includes a first cylinder 11, a second cylinder 12, a third cylinder 13 and a fourth cylinder 14, a second pressure sensor 117 is installed on a pipeline of the first cylinder 11, the pipeline of the first cylinder 11 is communicated with an intake pipeline 3, a ninth check valve 116 is installed between the pipeline of the first cylinder 11 and the intake pipeline 3, the pipeline of the first cylinder 11 is communicated with an exhaust pipeline 4, an eighth check valve 115 is installed between the pipeline of the first cylinder 11 and the exhaust pipeline 4, a first temperature sensor 121 for detecting the temperature of working medium gas in the first cylinder 11 is installed on the first cylinder 11, a third pressure sensor 118 is installed on a pipeline of the second cylinder 12, the pipeline of the second cylinder 12 is communicated with the intake pipeline 3, a seventh check valve 114 is installed between the pipeline of the second cylinder 12 and the intake pipeline 3, the pipeline of the second cylinder 12 is communicated with the exhaust pipeline 4, a sixth check valve 113 is installed between the pipeline of the second cylinder 12 and the intake pipeline 4, a fourth check valve 122 is installed on the second cylinder 12, a pipeline of the fourth check valve 111 is installed on the exhaust pipeline 13 for detecting the temperature of the working medium gas in the first cylinder 13, a pipeline 13 is installed on the pipeline 13, a pipeline 111, a pipeline of the fourth check valve 122 is installed on the pipeline 13 for detecting the temperature sensor 13, a pipeline 13, a third check valve 122, a pipeline 13 is installed on the pipeline 13, the pipeline of the fourth cylinder 14 is communicated with the air inlet pipeline 3, a third one-way valve 110 is installed between the pipeline of the fourth cylinder 14 and the air inlet pipeline 3, the pipeline of the fourth cylinder 14 is communicated with the exhaust pipeline 4, a second one-way valve 109 is installed between the pipeline of the fourth cylinder 14 and the exhaust pipeline 4, and a fourth temperature sensor 124 for detecting the temperature of working medium gas in the fourth cylinder 14 is installed on the fourth cylinder 14.

In this embodiment, the controller 2 is electrically connected to the second pressure sensor 117, the third pressure sensor 118, the fourth pressure sensor 119, the fifth pressure sensor 120, the first temperature sensor 121, the second temperature sensor 122, the third temperature sensor 123, and the fourth temperature sensor 124, respectively, and the controller 2 is also electrically connected to the alarm.

The utility model discloses a theory of operation is: before the stirling engine unit 1 is started, the gas storage tank 101 is filled with working medium gas, the needle valve 102 is opened, the controller 2 controls the first gas inlet electromagnetic valve 105 and the second gas inlet electromagnetic valve 108 to be opened, the working medium gas in the gas storage tank 101 sequentially passes through the first pressure sensor 103, the safety valve 104 and the first gas inlet electromagnetic valve 105 through the gas inlet pipeline 3, the first pressure sensor 103 detects the gas pressure of the working medium gas, the working medium gas is filtered through the first filter 107, the filtered working medium gas passes through the second gas inlet electromagnetic valve 108, then respectively passes through the ninth one-way valve 116, the seventh one-way valve 114, the fifth one-way valve 112 and the third one-way valve 110 to enter the stirling engine unit 1, a proper amount of working medium gas is pre-charged into the first cylinder 11, the second cylinder 12, the third cylinder 13 and the fourth cylinder 14 of the stirling engine unit 1, and after the completion, the controller 2 controls the first gas inlet electromagnetic valve 105 and the second gas inlet electromagnetic valve 108 to be closed.

When the stirling engine unit 1 is operated, when the external input heat is large, the needle valve 102 is opened, the controller 2 is used for controlling the first air inlet electromagnetic valve 105 and the second air inlet electromagnetic valve 108 to be opened, the working medium gas in the gas storage tank 101 sequentially passes through the first pressure sensor 103, the safety valve 104 and the first air inlet electromagnetic valve 105 through the air inlet pipeline 3, the first pressure sensor 103 is used for detecting the air pressure of the working medium gas, the working medium gas is filtered by the first filter 107, the filtered working medium gas passes through the second air inlet electromagnetic valve 108, then respectively passes through the ninth one-way valve 116, the seventh one-way valve 114, the fifth one-way valve 112 and the third one-way valve 110 to enter the stirling engine unit 1, and a proper amount of working medium gas is filled into the first air cylinder 11, the second air cylinder 12, the third air cylinder 13 and the fourth air cylinder 14 of the stirling engine unit 1, so that the air inlet of the stirling engine unit 1 is realized, and after the completion, the controller 2 is used for controlling the first air inlet electromagnetic valve 105 and the second air inlet electromagnetic valve 108 to be closed; when the amount of heat input from the outside is small, the needle valve 102 is opened, the exhaust solenoid valve 127 and the first intake solenoid valve 105 are controlled to be opened by the controller 2, the evacuation solenoid valve 125 is controlled to be closed, and the booster pump 129 is controlled to be started, the working medium gas in the first cylinder 11, the second cylinder 12, the third cylinder 13 and the fourth cylinder 14 of the stirling engine unit 1 is exhausted through the eighth check valve 115, the sixth check valve 113, the fourth check valve 111 and the second check valve 109 respectively, and then is filtered through the second filter 126, the filtered working medium gas sequentially passes through the exhaust solenoid valve 127 and the tenth check valve 128 to enter the booster pump 129, the working medium gas is pressurized to a high pressure by the booster pump 129, the high-pressure working medium gas respectively passes through the eleventh check valve 130 and the twelfth check valve 131 to enter the connecting pipeline 5, the working medium gas in the connecting pipeline 5 sequentially passes through the first check valve 106, the first intake solenoid valve 105, the safety valve 104, the first pressure sensor 103 and the needle valve 102 to be exhausted into the gas storage tank 101, so that the stirling engine unit 1 exhausts the exhaust solenoid valve 127 and the first intake solenoid valve 105 and controls the booster pump 129 to stop. A safety valve 104 is provided to prevent the deformation or rupture of the inlet pipe 3 caused by the excessive gas pressure of the working medium.

When the stirling engine unit 1 stops, the controller 2 controls the evacuation solenoid valve 125 to open, controls the first air intake solenoid valve 105, the second air intake solenoid valve 108 and the exhaust solenoid valve 127 to close, and controls the booster pump 129 to stop working, redundant working medium gas in the first air cylinder 11, the second air cylinder 12, the third air cylinder 13 and the fourth air cylinder 14 of the stirling engine unit 1 respectively enters the exhaust pipeline 4 through the eighth one-way valve 115, the sixth one-way valve 113, the fourth one-way valve 111 and the second one-way valve 109, the working medium gas in the exhaust pipeline 4 is filtered through the second filter 126, and the filtered working medium gas is exhausted through the evacuation solenoid valve 125, so that the redundant working medium gas in the first air cylinder 11, the second air cylinder 12, the third air cylinder 13 and the fourth air cylinder 14 of the stirling engine unit 1 is exhausted, and after the completion, the evacuation solenoid valve 125 is controlled to close by the controller 2.

The pipelines of the first cylinder 11, the second cylinder 12, the third cylinder 13 and the fourth cylinder 14 of the stirling engine unit 1 are respectively provided with a second pressure sensor 117, a third pressure sensor 118, a fourth pressure sensor 119 and a fifth pressure sensor 120, the second pressure sensor 117, the third pressure sensor 118, the fourth pressure sensor 119 and the fifth pressure sensor 120 are respectively connected with the controller 2, the second pressure sensor 117, the third pressure sensor 118, the fourth pressure sensor 119 and the fifth pressure sensor 120 respectively detect the pressure on the pipelines of the first cylinder 11, the second cylinder 12, the third cylinder 13 and the fourth cylinder 14 in real time and send the detected pressure values to the controller 2, the controller 2 compares the received pressure value with a set value, when the pressure value detected by the second pressure sensor 117, the third pressure sensor 118, the fourth pressure sensor 119 or the fifth pressure sensor 120 is lower than the set value, the air intake and exhaust system normally works, and when the pressure value detected by the second pressure sensor 117, the third pressure sensor 118, the fourth pressure sensor 119 or the fifth pressure sensor 120 is higher than the set value, the controller 2 controls the alarm to give an alarm, controls the stirling engine unit 1 to enter a shutdown state, and opens the exhaust solenoid valve 125 to exhaust the redundant working medium gas in the first cylinder 11, the second cylinder 12, the third cylinder 13 and the fourth cylinder 14 of the stirling engine unit 1.

A first temperature sensor 121, a second temperature sensor 122, a third temperature sensor 123 and a fourth temperature sensor 124 are respectively mounted on a first cylinder 11, a second cylinder 12, a third cylinder 13 and a fourth cylinder 14 of the stirling engine unit 1, the first temperature sensor 121, the second temperature sensor 122, the third temperature sensor 123 and the fourth temperature sensor 124 are respectively connected with the controller, the first temperature sensor 121, the second temperature sensor 122, the third temperature sensor 123 and the fourth temperature sensor 124 respectively detect the temperatures in the first cylinder 11, the second cylinder 12, the third cylinder 13 and the fourth cylinder 14 in real time and send the detected temperature values to the controller 2, the controller 2 compares the received temperature values with a set value, and when the temperature values detected by the first temperature sensor 121, the second temperature sensor 122, the third temperature sensor 123 or the fourth temperature sensor 124 are higher than the set value, the controller 2 charges a proper amount of working medium into the first cylinder 11, the second cylinder 13 and the fourth cylinder 14 of the stirling engine unit 1 by controlling the opening and closing of the first gas solenoid valve 105 and the second gas 108; when the temperature value detected by the first temperature sensor 121, the second temperature sensor 122, the third temperature sensor 123 or the fourth temperature sensor 124 is lower than the set value, the controller 2 controls the evacuation solenoid valve 125 to be closed, controls the exhaust solenoid valve 127 and the first intake solenoid valve 105 to be opened and closed, and controls the booster pump 129 to be started and stopped, so that the proper amount of working medium gas in the first cylinder 11, the second cylinder 12, the third cylinder 13 and the fourth cylinder 14 of the stirling engine unit 1 is discharged into the gas storage tank 101.

The pressure sensor 103 is connected with the controller 2, the pressure sensor detects the pressure value of the working medium gas in the cylinder 3 in real time and sends the detected pressure value to the controller 2, the controller 2 compares the received pressure value with a set value, and when the measured value of the pressure sensor 103 is lower than the set value, the controller 2 controls the alarm to give an alarm and controls the Stirling engine unit 1 to enter a shutdown state.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A stirling engine intake and exhaust system, characterized by: the Stirling engine comprises a Stirling engine unit (1), a controller (2), an air inlet pipeline (3), an exhaust pipeline (4), an air storage tank (101), a first pressure sensor (103), a first air inlet electromagnetic valve (105), a first filter (107), a second air inlet electromagnetic valve (108), a second filter (126), an exhaust electromagnetic valve (127) and a booster pump (129), wherein the Stirling engine unit (1) is sequentially communicated with the second air inlet electromagnetic valve (108), the first filter (107), the first air inlet electromagnetic valve (105), the first pressure sensor (103) and the air storage tank (101) through the air inlet pipeline (3), the Stirling engine unit (1) is sequentially communicated with the second filter (126), the exhaust electromagnetic valve (127) and the booster pump (129) through the exhaust pipeline (4), and the controller (2) is respectively electrically connected with the first pressure sensor (103), the first air inlet electromagnetic valve (105), the first filter (107), the second air inlet electromagnetic valve (108), the second filter (126), the exhaust electromagnetic valve (127) and the booster pump (129).

2. A stirling engine intake and exhaust system according to claim 1, wherein: a needle valve (102) is installed on an air inlet pipeline (3) between the air storage tank (101) and the first pressure sensor (103), and a safety valve (104) is installed on the air inlet pipeline (3) between the first pressure sensor (103) and the first air inlet electromagnetic valve (105).

3. A stirling engine intake and exhaust system according to claim 1, wherein: install evacuation solenoid valve (125) on exhaust pipe (4) between second filter (126) and exhaust solenoid valve (127), evacuation solenoid valve (125) and controller (2) electric connection, install tenth check valve (128) on exhaust pipe (4) between exhaust solenoid valve (127) and booster pump (129), eleventh check valve (130) and twelfth check valve (131) are installed respectively to the exit end of booster pump (129), and booster pump (129) are through connecting tube (5) and first air inlet solenoid valve (105) intercommunication, install first check valve (106) on connecting tube (5) between booster pump (129) and first air inlet solenoid valve (105).

4. A stirling engine intake and exhaust system according to claim 1, wherein: the Stirling engine unit (1) comprises a first cylinder (11), a second cylinder (12), a third cylinder (13) and a fourth cylinder (14), a second pressure sensor (117) is installed on a pipeline of the first cylinder (11), a ninth one-way valve (116) is installed between a pipeline of the first cylinder (11) and an air inlet pipeline (3), an eighth one-way valve (115) is installed between the pipeline of the first cylinder (11) and an exhaust pipeline (4), and a first temperature sensor (121) used for detecting the temperature of working medium gas in the first cylinder (11) is installed on the first cylinder (11).

5. A Stirling engine intake and exhaust system according to claim 4, wherein: install third pressure sensor (118) on the pipeline of second cylinder (12), install seventh check valve (114) between the pipeline of second cylinder (12) and air inlet pipeline (3), install sixth check valve (113) between the pipeline of second cylinder (12) and exhaust pipe (4), install second temperature sensor (122) that are used for detecting working medium gas temperature in second cylinder (12) on second cylinder (12).

6. A Stirling engine intake and exhaust system according to claim 4, wherein: install fourth pressure sensor (119) on the pipeline of third cylinder (13), install fifth check valve (112) between the pipeline of third cylinder (13) and air inlet pipeline (3), install fourth check valve (111) between the pipeline of third cylinder (13) and exhaust pipe (4), install third temperature sensor (123) that are used for detecting working medium gas temperature in third cylinder (13) on third cylinder (13).

7. A Stirling engine intake and exhaust system according to claim 4, wherein: the gas temperature detection device is characterized in that a fifth pressure sensor (120) is installed on a pipeline of the fourth cylinder (14), a third one-way valve (110) is installed between the pipeline of the fourth cylinder (14) and the gas inlet pipeline (3), a second one-way valve (109) is installed between the pipeline of the fourth cylinder (14) and the gas exhaust pipeline (4), and a fourth temperature sensor (124) used for detecting the temperature of working medium gas in the fourth cylinder (14) is installed on the fourth cylinder (14).

8. A stirling engine intake and exhaust system according to claim 1, wherein: the controller (2) is respectively electrically connected with the second pressure sensor (117), the third pressure sensor (118), the fourth pressure sensor (119), the fifth pressure sensor (120), the first temperature sensor (121), the second temperature sensor (122), the third temperature sensor (123) and the fourth temperature sensor (124), and the controller (2) is also electrically connected with the alarm.