Gas sealing and pressure regulating device of TRT generator set

Abstract

The utility model discloses a TRT generator set gas sealing and pressure regulating device which comprises a gas conveying pipe main line. The coal gas filter is arranged on the main pipeline of the gas conveying pipe; the first coal gas pressure monitoring device is arranged on the main pipeline of the gas conveying pipe and is positioned at the downstream of the coal gas filter; the regulating valve is arranged on the main pipeline of the gas conveying pipe and is positioned at the downstream of the first gas pressure monitoring device; and the second coal gas pressure monitoring device is arranged on the main pipeline of the gas conveying pipe and is positioned at the downstream of the regulating valve. The gas pressure of the gas conveying pipe main line is monitored through the first gas pressure monitoring device, if the gas pressure of the gas conveying pipe main line does not reach the standard, the gas pressure of the gas conveying pipe main line is adjusted through the adjusting valve, and the gas pressure of the gas conveying pipe main line is monitored through the second gas pressure monitoring device arranged at the downstream position of the adjusting valve. Whether the air pressure of the main line of the air delivery pipe is adjusted to reach the standard is monitored, the influence on equipment is reduced by monitoring and adjusting the air pressure of the main line of the air delivery pipe, and normal operation and power generation of a generator set are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal gas seal technical field, concretely relates to a TRT generator set coal gas seal pressure regulating device. BACKGROUND

[0002] Blast Furnace Top Gas Recovery Turbine Unit (TRT) is a kind of device that uses the by-product of blast furnace smelting, the pressure energy and heat energy of blast furnace top gas, makes the coal gas work through turbine expander, converts it into mechanical energy, and then converts the mechanical energy into electric energy, which has the advantages of energy recovery, better control of top pressure and noise reduction.

[0003] The gas pipeline supply pressure of TRT generator set is generally higher than the demand of use, so it needs to be reduced in pressure, and in actual use, the pressure of gas pipeline is lower than the demand of use, so it needs to be increased in pressure, the existing pressure regulating device is not convenient for monitoring and adjusting the pressure of coal gas, and no matter the pressure is too large or too small, it will affect the operation of equipment, shorten the service life of equipment and affect the normal operation of TRT generator set. UTILITY MODEL CONTENTS

[0004] In view of the defects of prior art, the utility model designs a kind of TRT generator set coal gas seal pressure regulating device, including: gas pipe main circuit;Gas filter, is set on gas pipe main circuit;First coal gas pressure monitoring device, is set on gas pipe main circuit, and located the downstream of gas filter;Adjusting valve, is set on gas pipe main circuit, and located the downstream of first coal gas pressure monitoring device;Second coal gas pressure monitoring device, is set on gas pipe main circuit, and located the downstream of adjusting valve.

[0005] Preferably, it further includes gas storage assembly, and the gas storage assembly is connected to the gas pipe main circuit, for pressure division when the pressure of the gas pipe main circuit is too high, and for pressure increase when the pressure of the gas pipe main circuit is too low.

[0006] Preferably, the gas storage assembly includes: first gas pipe branch, an input end of which is connected to the gas pipe main circuit and located between the first coal gas pressure monitoring device and the adjusting valve;Gas storage tank, connected to an output end of the first gas pipe branch;Second gas pipe branch, an input end of which is connected to the gas storage tank, and an output end of which is connected to the gas pipe main circuit and located between the adjusting valve and the second coal gas pressure monitoring device.

[0007] Preferably, a first one-way valve is arranged on the first gas pipe branch, and a second one-way valve is arranged on the second gas pipe branch.

[0008] Preferably, the gas storage assembly comprises: a first gas pipe branch, an input end of which is connected to the main gas pipe line and located between the first coal gas pressure monitoring device and the regulating valve; a gas storage tank, which is connected to an output end of the first gas pipe branch; and a third gas pipe branch, an input end of which is connected to the gas storage tank and an output end of which is connected to the main gas pipe line and located between the coal gas filter and the first coal gas pressure monitoring device.

[0009] Preferably, a first one-way valve is arranged on the first gas pipe branch and a third one-way valve is arranged on the third gas pipe branch.

[0010] Preferably, the gas storage assembly comprises: a third gas pipe branch, an input end of which is connected to the main gas pipe line and located between the coal gas filter and the first coal gas pressure monitoring device; a gas storage tank, which is connected to an output end of the third gas pipe branch; and a second gas pipe branch, an input end of which is connected to the gas storage tank and an output end of which is connected to the main gas pipe line and located between the regulating valve and the second coal gas pressure monitoring device.

[0011] Preferably, a second one-way valve is arranged on the second gas pipe branch and a third one-way valve is arranged on the third gas pipe branch.

[0012] Preferably, the gas storage assembly comprises: a first gas pipe branch, an input end of which is connected to the main gas pipe line and located between the first coal gas pressure monitoring device and the regulating valve; a gas storage tank, which is connected to an output end of the first gas pipe branch; a second gas pipe branch, an input end of which is connected to the gas storage tank and an output end of which is connected to the main gas pipe line and located between the regulating valve and the second coal gas pressure monitoring device; and a third gas pipe branch, one end of which is connected to the main gas pipe line and located between the coal gas filter and the first coal gas pressure monitoring device and the other end of which is connected to the gas storage tank.

[0013] Preferably, a first one-way valve is arranged on the first gas pipe branch, a second one-way valve is arranged on the second gas pipe branch and a two-way valve is arranged on the third gas pipe branch.

[0014] Compared with the closest prior art, the utility model has the advantages of:

[0015] 1. The utility model discloses a first coal gas pressure monitoring device is monitored to the gas pressure of main gas pipe line, if the gas pressure of main gas pipe line is not up to the mark, the gas pressure of main gas pipe line is adjusted through the regulating valve, the second coal gas pressure monitoring device of the downstream position of adjusting the valve is monitored whether the gas pressure of main gas pipe line is adjusted up to the mark, through the monitoring and adjustment of the gas pressure of main gas pipe line, the influence to the equipment is reduced, and the normal operation of the generator set is guaranteed.

[0016] 2、The design of the gas storage assembly can share the gas pressure of the main line of the gas pipeline when the gas pressure of the main line of the gas pipeline is too large, and store part of the coal gas, when the gas pressure of the main line of the gas pipeline is too small, the gas storage assembly can deliver coal gas to the main line of the gas pipeline, so that the gas pressure of the main line of the gas pipeline meets the requirements, thereby reducing the influence on the equipment and ensuring the normal operation of the generator set. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the TRT generator set coal gas sealing pressure regulating device.

[0018] Reference signs:

[0019] 1-main line of gas pipeline, 2-gas filter, 3-first gas pressure monitoring device, 4-regulating valve, 5-second gas pressure monitoring device, 6-first gas pipeline branch, 7-gas storage tank, 8-second gas pipeline branch, 9-first one-way valve, 10-second one-way valve, 11-third gas pipeline branch, 12-two-way valve. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0021] As Figure 1 shown, the utility model provides a kind of TRT generator set coal gas sealing pressure regulating device, comprising: main line of gas pipeline 1;Gas filter 2 is arranged on main line of gas pipeline 1;First gas pressure monitoring device 3 is arranged on main line of gas pipeline 1, and located the downstream of gas filter 2;Regulating valve 4 is arranged on main line of gas pipeline 1, and located the downstream of first gas pressure monitoring device 3;Second gas pressure monitoring device 5 is arranged on main line of gas pipeline 1, and located the downstream of regulating valve 4.It is monitored to the gas pressure of main line of gas pipeline by first gas pressure monitoring device, if the gas pressure of main line of gas pipeline is not up to standard, it is adjusted to the gas pressure of main line of gas pipeline by regulating valve, it is monitored whether the gas pressure of main line of gas pipeline is adjusted up to standard by second gas pressure monitoring device being arranged at the downstream position of regulating valve, it is monitored and adjusted to the gas pressure of main line of gas pipeline, reduce the influence on equipment, ensure the normal operation of generator set.

[0022] Preferably, the gas storage assembly is connected to the main gas pipeline 1, and is used to divide the pressure when the pressure of the main gas pipeline 1 is too high, and to increase the pressure when the pressure of the main gas pipeline 1 is too low. The design of the gas storage assembly can share the pressure of the main gas pipeline 1 when the pressure of the main gas pipeline 1 is too high, and store a part of the gas. When the pressure of the main gas pipeline 1 is too low, the gas storage assembly can deliver the gas to the main gas pipeline 1, so as to ensure that the pressure of the main gas pipeline 1 meets the requirements, and further, reduce the influence on the equipment, and ensure the normal operation of the generator set.

[0023] Preferably, the gas storage assembly comprises: a first gas pipeline branch 6, an input end of which is connected to the main gas pipeline 1, and located between the first gas pressure monitoring device 3 and the regulating valve 4; a gas storage tank 7, which is connected to an output end of the first gas pipeline branch 6; and a second gas pipeline branch 8, an input end of which is connected to the gas storage tank 7, and an output end of which is connected to the main gas pipeline 1, and located between the regulating valve 4 and the second gas pressure monitoring device 5.

[0024] Preferably, a first one-way valve 9 is arranged on the first gas pipeline branch 6, and a second one-way valve 10 is arranged on the second gas pipeline branch 8.

[0025] In another preferred embodiment, the gas storage assembly comprises: a first gas pipeline branch 6, an input end of which is connected to the main gas pipeline 1, and located between the first gas pressure monitoring device 3 and the regulating valve 4; a gas storage tank 7, which is connected to an output end of the first gas pipeline branch 6; and a third gas pipeline branch 11, an input end of which is connected to the gas storage tank 7, and an output end of which is connected to the main gas pipeline 1, and located between the gas filter 2 and the first gas pressure monitoring device 3.

[0026] Preferably, a first one-way valve 9 is arranged on the first gas pipeline branch 6, and a third one-way valve is arranged on the third gas pipeline branch 11.

[0027] In another preferred embodiment, the gas storage assembly comprises: a third gas pipeline branch 11, an input end of which is connected to the main gas pipeline 1, and located between the gas filter 2 and the first gas pressure monitoring device 3; a gas storage tank 7, which is connected to an output end of the third gas pipeline branch 11; and a second gas pipeline branch 8, an input end of which is connected to the gas storage tank 7, and an output end of which is connected to the main gas pipeline 1, and located between the regulating valve 4 and the second gas pressure monitoring device 5.

[0028] Preferably, a second one-way valve 10 is arranged on the second gas pipeline branch 8, and a third one-way valve is arranged on the third gas pipeline branch 11.

[0029] In another preferred embodiment, the gas storage assembly comprises: a first gas pipe branch 6, which is connected to the main gas pipe line 1 at a position between the first gas pressure monitoring device 3 and the regulating valve 4; a gas storage tank 7, which is connected to the output end of the first gas pipe branch 6; a second gas pipe branch 8, which is connected to the gas storage tank 7 at the input end and connected to the main gas pipe line 1 at a position between the regulating valve 4 and the second gas pressure monitoring device 5 at the output end; and a third gas pipe branch 11, which is connected to the main gas pipe line 1 at a position between the gas filter 2 and the first gas pressure monitoring device 3 at one end and connected to the gas storage tank 7 at the other end. The embodiment comprises any one of the above-mentioned three embodiments, and any one of the embodiments can be operated independently.

[0030] Preferably, the first gas pipe branch 6 is provided with a first one-way valve 9, the second gas pipe branch 8 is provided with a second one-way valve 10, and the third gas pipe branch 11 is provided with a two-way valve 12.

[0031] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] In addition, the terms "upper" and "lower" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "upper" and "lower" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0033] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, or electrical connection or communication with each other; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0035] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of the claims of this utility model pending approval.

Claims

1. A TRT generator set coal gas seal pressure regulating device, characterized in that, The utility model relates to a kind of gas supply system, comprising: Gas pipe main line (1); Coal gas filter (2) is arranged on gas pipe main line (1); First coal gas pressure monitoring device (3) is arranged on gas pipe main line (1), and located downstream of the coal gas filter (2); Regulating valve (4) is arranged on gas pipe main line (1), and located downstream of the first coal gas pressure monitoring device (3); Second coal gas pressure monitoring device (5) is arranged on gas pipe main line (1), and located downstream of the regulating valve (4).

2. The TRT generator set coal gas seal pressure regulating device according to claim 1, characterized in that, It also includes gas storage assembly, the gas storage assembly is connected on the gas pipe main line (1), for when the pressure of gas pipe main line (1) is too high, pressure is divided, when the pressure of gas pipe main line (1) is too low, pressure is boosted.

3. The TRT generator set gas seal pressure regulating device according to claim 2, characterized in that, The gas storage assembly comprises: First gas pipe branch (6), input end is connected on the gas pipe main line (1), and located between the first coal gas pressure monitoring device (3) and the regulating valve (4); Gas tank (7) is connected with the output end of the first gas pipe branch (6); Second gas pipe branch (8), input end is connected with the gas tank (7), and output end is connected on the gas pipe main line (1), and located between the regulating valve (4) and the second coal gas pressure monitoring device (5).

4. The TRT generator set gas seal pressure regulating device according to claim 3, characterized in that, First check valve (9) is arranged on the first gas pipe branch (6), and second check valve (10) is arranged on the second gas pipe branch (8).

5. The TRT generator set gas seal pressure regulating device according to claim 2, characterized in that, The gas storage assembly comprises: First gas pipe branch (6), input end is connected on the gas pipe main line (1), and located between the first coal gas pressure monitoring device (3) and the regulating valve (4); Gas tank (7) is connected with the output end of the first gas pipe branch (6); Third gas pipe branch (11), input end is connected with the gas tank (7), and output end is connected on the gas pipe main line (1), and located between the coal gas filter (2) and the first coal gas pressure monitoring device (3).

6. The TRT generator set gas seal pressure regulating device according to claim 5, characterized in that, First check valve (9) is arranged on the first gas pipe branch (6), and third check valve is arranged on the third gas pipe branch (11).

7. The TRT generator set gas seal pressure regulating device according to claim 2, characterized in that, The gas storage assembly comprises: Third gas pipe branch (11), input end is connected on the gas pipe main line (1), and located between the coal gas filter (2) and the first coal gas pressure monitoring device (3); Gas tank (7) is connected with the output end of the third gas pipe branch (11); Second gas pipe branch (8), input end is connected with the gas tank (7), and output end is connected on the gas pipe main line (1), and located between the regulating valve (4) and the second coal gas pressure monitoring device (5).

8. The TRT generator set gas seal pressure regulating device according to claim 7, characterized in that, Second check valve (10) is arranged on the second gas pipe branch (8), and third check valve is arranged on the third gas pipe branch (11).

9. The TRT generator set gas seal pressure regulating device according to claim 2, characterized in that, The gas storage assembly comprises: First gas pipe branch (6), input end is connected on the gas pipe main line (1), and located between the first coal gas pressure monitoring device (3) and the regulating valve (4); a gas storage tank (7) connected to the output end of the first gas pipe branch (6); a second gas pipe branch (8) with its input end connected to the gas storage tank (7) and its output end connected to the main gas pipe line (1) between the regulating valve (4) and the second gas pressure monitoring device (5); a third gas pipe branch (11) with one end connected to the main gas pipe line (1) between the gas filter (2) and the first gas pressure monitoring device (3) and the other end connected to the gas storage tank (7).

10. The TRT generator set gas seal pressure regulating device according to claim 9, characterized in that, The first gas pipe branch (6) is provided with a first one-way valve (9), the second gas pipe branch (8) is provided with a second one-way valve (10), and the third gas pipe branch (11) is provided with a two-way valve (12).

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