CN219014296U - Steam pressure-reducing and temperature-reducing device - Google Patents

Abstract

The utility model belongs to the technical field of steam treatment equipment, in particular to a steam depressurization and cooling device, which comprises a steam inlet structure, and a first pipeline and a second pipeline which are communicated with both sides of the steam inlet structure, wherein the steam inlet structure comprises a steam inlet cylinder, the steam inlet cylinder is communicated with the first pipeline and the second pipeline through branch pipes arranged at both ends of the steam inlet cylinder, an electromagnetic valve I is arranged on the branch pipe communicated with the first pipeline, an electromagnetic valve II is arranged on the branch pipe communicated with the second pipeline, one side of the steam inlet cylinder is communicated with a steam inlet pipeline, and a temperature sensor and an air pressure valve are arranged on the steam inlet pipeline. According to the utility model, the first pipeline and the second pipeline are respectively used for circulating steam in different temperature states on the steam inlet structure, and the heat exchanger is arranged on the first pipeline, so that the recycling of the heat of superheated steam can be realized, the waste is avoided, and the problems of unreasonable steam cooling mode and easiness in waste in the current stage are solved.

Description

Steam pressure-reducing and temperature-reducing device

Technical Field

The utility model relates to the technical field of steam treatment equipment, in particular to a steam depressurization and cooling device.

Background

The hot steam with high temperature and high pressure produced by the power plant is required to be changed into saturated steam through a decompression and temperature reduction station system and then sent to a user for use, and the superheated steam can release latent heat only when being cooled to a saturated state, so that the superheated steam is required to be subjected to pressure reduction and temperature reduction treatment, and the temperature reduction modes at the present stage mainly have two modes, namely indirect contact type, and convection heat exchange, so that the effect of cooling steam, such as a condenser, is achieved, and the other mode is mixed type, cold water is sprayed into the hot steam for temperature reduction, such as a temperature reducer, however, the two modes have some defects.

Firstly, the device can not realize the conversion utilization of heat when using, can not store unnecessary energy through the heat exchanger, causes the loss of heat energy, secondly, the device lacks temperature monitoring and control mechanism, when the steam temperature in the pipeline is not high, still need to cool down, can cause the steam temperature to be too low, then reduces the result of use of steam, can not realize the automatic control of steam cooling, has some shortages, therefore needs to improve.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides the steam pressure-reducing and temperature-reducing device, which is characterized in that the first pipeline and the second pipeline are respectively used for circulating steam in different temperature states on the steam inlet structure, and the first pipeline is provided with the heat exchanger, so that the recycling of superheated steam heat can be realized, the waste is avoided, and the problems that the steam temperature-reducing mode is unreasonable and the waste is easy to cause in the prior art are solved.

(II) technical scheme

The utility model adopts the following technical scheme for realizing the purposes:

the steam pressure-reducing and temperature-reducing device comprises a steam inlet structure, and a first pipeline and a second pipeline which are communicated with the two sides of the steam inlet structure, wherein the steam inlet structure comprises a steam inlet cylinder, the steam inlet cylinder is communicated with the first pipeline and the second pipeline through branch pipes arranged at two ends of the steam inlet cylinder, a first electromagnetic valve is arranged on the branch pipe communicated with the first pipeline, a second electromagnetic valve is arranged on the branch pipe communicated with the second pipeline, one side of the steam inlet cylinder is communicated with a steam inlet pipeline, a temperature sensor and a pneumatic valve are arranged on the steam inlet pipeline, the tail end of the first pipeline and the tail end of the second pipeline are communicated with the steam outlet cylinder, and a steam outlet is arranged on one side of the steam outlet cylinder, and a heat exchanger is communicated with the first pipeline.

Further, a water inlet pipe is arranged at the top of the heat exchanger, a water outlet pipe is arranged at the bottom of one side of the heat exchanger, and the water inlet pipe and the water outlet pipe are communicated with a water circulation pipe at the inner side of the heat exchanger.

Further, the lower surface of heat exchanger is provided with the bottom plate to install control assembly on the bottom plate, control assembly includes the support of fixed connection on the bottom plate, and PLC controller and chargeable lithium cell that set up on the support, temperature sensor's output is connected with the input electricity of PLC controller, and the output electricity of PLC controller is connected with the input of solenoid valve I and solenoid valve II respectively.

Further, the PLC controller and the rechargeable lithium battery are connected in series.

Further, steam drain valves are arranged on the first pipeline and the second pipeline.

(III) beneficial effects

Compared with the prior art, the utility model provides the steam pressure reducing and temperature reducing device, which has the following beneficial effects:

1. according to the utility model, the first pipeline and the second pipeline are communicated at two sides of the steam inlet structure, the first pipeline is used for circulating higher-temperature steam, when the temperature of the steam is too high, the first pipeline is communicated with the heat exchanger, and the heat exchanger can be used for recycling the redundant heat of the steam.

2. According to the utility model, the first pipeline and the second pipeline are communicated on the steam inlet structure, and the temperature sensor is arranged on the air inlet pipeline of the steam inlet structure, so that the temperature of the inlet steam can be monitored, when the temperature is higher than a set value, the PLC controller controls the first electromagnetic valve on the branch pipe to be opened, the first pipeline is used for circulation, otherwise, the second electromagnetic valve on the branch pipe on the other side is controlled to be opened, the circulation management of the steam in different temperature states is realized, when the temperature is lower than a certain value, the temperature is not required to be reduced, the influence of the too low steam temperature on the performance of the steam is avoided, and the classification management is more practical and better.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a steam inlet structure according to the present utility model;

FIG. 3 is a schematic diagram of a control assembly according to the present utility model.

In the figure: 1. a steam inlet structure; 101. a steam inlet cylinder; 102. a first electromagnetic valve; 103. a branch pipe; 104. a temperature sensor; 105. a steam inlet pipeline; 106. an air pressure valve; 107. a second electromagnetic valve; 2. a heat exchanger; 3. a water inlet pipe; 4. a control assembly; 401. a bracket; 402. a PLC controller; 403. a rechargeable lithium battery; 5. a bottom plate; 6. a water outlet pipe; 7. a first pipeline; 8. a steam exhaust cylinder; 9. a steam outlet; 10. a second pipeline; 11. a steam trap.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

As shown in fig. 1 and 2, the steam depressurization and temperature reduction device according to one embodiment of the present utility model includes a steam inlet structure 1, and a first pipeline 7 and a second pipeline 10 which are connected to both sides of the steam inlet structure 1, wherein the steam inlet structure 1 includes a steam inlet cylinder 101, the steam inlet cylinder 101 is connected to the first pipeline 7 and the second pipeline 10 through a branch pipe 103 provided at both ends thereof, a solenoid valve 102 is installed on the branch pipe 103 connected to the first pipeline 7, a solenoid valve 107 is installed on the branch pipe 103 connected to the second pipeline 10, one side of the steam inlet cylinder 101 is connected to a steam inlet pipeline 105, a temperature sensor 104 and a pressure valve 106 are installed on the steam inlet pipeline 105, the end of the first pipeline 7 and the end of the second pipeline 10 are connected to a steam outlet cylinder 8, one side of the steam outlet cylinder 8 is provided with a steam outlet 9, and the first pipeline 7 is connected to a heat exchanger 2.

It should be noted that: the model of the temperature sensor 104 is BRW600-400A, the monitoring of the temperature of entering steam can be realized, the use mode is the known prior art, and details are omitted, through setting up steam inlet structure 1, be provided with the steam inlet tube 101 in the steam inlet structure 1, and set up branch pipe 103 at two tip of steam inlet tube 101, can realize the connection of pipeline one 7 through corresponding branch pipe 103, pipeline two 10, pipeline one 7 is used for the circulation of steam under the higher temperature state, pipeline two 10 are used for the circulation of steam under the lower temperature state, classified management control, the cooling management of steam of being convenient for, through installing solenoid valve one 102 on branch pipe 103 with pipeline one 7 intercommunication, install solenoid valve two 107 on branch pipe 103 with pipeline two 10 intercommunication, can carry out the circulation control of steam under the different temperature states through solenoid valve one 102, solenoid valve two 107, let steam into pipeline one 7 or the inside of pipeline two 10, through connecting steam inlet tube 105 in one side of steam inlet tube 101, the entering that is used for steam, through installing temperature sensor 104 and pneumatic valve 106 on steam inlet tube 105, the temperature sensor 104 and pneumatic valve 106 are arranged on steam inlet tube 105, can realize the waste of steam at the temperature sensor one side 8, the pipeline one 8 can be realized through the pressure of the pipeline one 8, the pipeline 8 is realized, the waste can be realized through setting up the pipeline one 8, the pressure valve 8 is realized, the steam can be realized through the pipeline one 8, and the waste is realized, the steam is realized through setting up of pipeline 8, the heat recovery is realized, and can be realized through setting up the steam valve 8, and can be realized through the heat exchanger 8 has been through the valve 8.

As shown in fig. 1, in some embodiments, the top of the heat exchanger 2 is provided with a water inlet pipe 3, and the bottom of one side of the heat exchanger 2 is provided with a water outlet pipe 6, and the water inlet pipe 3 and the water outlet pipe 6 are communicated with a water circulation pipe inside the heat exchanger 2.

It should be noted that: the water inlet pipe 3 and the water outlet pipe 6 are respectively used for water inlet of cold water and water outlet of warm water, the water inlet pipe 3 and the water outlet pipe 6 are communicated with the water circulation pipe at the inner side of the heat exchanger 2, and the temperature of the cold water is raised through the water circulation pipe.

As shown in fig. 1, 2 and 3, in some embodiments, the bottom surface of the heat exchanger 2 is provided with a bottom plate 5, and a control assembly 4 is mounted on the bottom plate 5, the control assembly 4 includes a bracket 401 fixedly connected to the bottom plate 5, a PLC controller 402 and a rechargeable lithium battery 403 disposed on the bracket 401, an output end of the temperature sensor 104 is electrically connected to an input end of the PLC controller 402, and an output end of the PLC controller 402 is electrically connected to an input end of the solenoid valve one 102 and an input end of the solenoid valve two 107, respectively.

It should be noted that: the model number of the PLC controller 402 is S7-400, and the PLC controller is used for receiving the output signal of the temperature sensor 104 and controlling the corresponding first electromagnetic valve 102 and the corresponding second electromagnetic valve 107 to work so as to realize the circulation control of steam.

As shown in fig. 3, in some embodiments, the PLC controller 402 and the rechargeable lithium battery 403 are connected in series, so as to realize the power supply function of the PLC controller 402, and the rechargeable lithium battery 403 can be recycled for use, so that the method has good economic and environmental protection performances.

As shown in fig. 1, in some embodiments, the first pipeline 7 and the second pipeline 10 are provided with steam traps 11, and the steam traps 11 play a role in automatically discharging non-condensable objects such as condensed water, air and the like in a steam system and prevent steam leakage.

The working principle and the application steps of the utility model are as follows: steam enters the steam inlet cylinder 101 through the steam inlet pipeline 105, a temperature sensor 104 and a pneumatic valve 106 are arranged on the steam inlet pipeline 105, the temperature sensor 104 can monitor the temperature of the entering steam and transmit signals to the PLC controller 402, when the temperature of the steam is higher than a certain value, the PLC controller 402 controls the solenoid valve I102 to be opened, the solenoid valve II 107 is closed, the steam enters the pipeline I7 through the branch pipe 103, the heat exchanger 2 is arranged on the pipeline I7, the steam can be recycled through a water circulating pipe arranged in the heat exchanger 2 to form hot water and is discharged through the water outlet pipe 6, the treated steam is discharged into the steam outlet cylinder 8, and is discharged through the steam outlet 9, when the temperature of the steam in the steam inlet pipeline 105 is lower than a certain value, the PLC controller 402 controls the solenoid valve I102 to be closed, the solenoid valve II 107 is opened, the steam is discharged into the steam outlet cylinder 8 through the pipeline II 10, the temperature is not required to be reduced, and the use effect is avoided.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (5)

1. The steam pressure-reducing and temperature-reducing device comprises a steam inlet structure (1), and a first pipeline (7) and a second pipeline (10) which are communicated with the two sides of the steam inlet structure (1), and is characterized in that: the steam inlet structure (1) comprises a steam inlet cylinder (101), the steam inlet cylinder (101) is communicated with a first pipeline (7) and a second pipeline (10) through branch pipes (103) arranged at two ends of the steam inlet cylinder, a first electromagnetic valve (102) is arranged on the branch pipe (103) communicated with the first pipeline (7), a second electromagnetic valve (107) is arranged on the branch pipe (103) communicated with the second pipeline (10), one side of the steam inlet cylinder (101) is communicated with a steam inlet pipeline (105), a temperature sensor (104) and a pneumatic valve (106) are arranged on the steam inlet pipeline (105), the tail end of the first pipeline (7) and the tail end of the second pipeline (10) are communicated with a steam exhaust cylinder (8), one side of the steam exhaust cylinder (8) is provided with a steam exhaust port (9), and the first pipeline (7) is communicated with a heat exchanger (2).

2. The vapor pressure-reducing and temperature-reducing device according to claim 1, wherein: the top of heat exchanger (2) is provided with inlet tube (3) to one side bottom of heat exchanger (2) is provided with outlet pipe (6), and inlet tube (3) and outlet pipe (6) intercommunication are on the water circulating pipe of heat exchanger (2) inboard.

3. The vapor pressure-reducing and temperature-reducing device according to claim 1, wherein: the lower surface of heat exchanger (2) is provided with bottom plate (5) to install control assembly (4) on bottom plate (5), control assembly (4) are including support (401) of fixed connection on bottom plate (5), and PLC controller (402) and chargeable lithium cell (403) of setting on support (401), the output of temperature sensor (104) is connected with the input electricity of PLC controller (402), and the output of PLC controller (402) is connected with the input of solenoid valve one (102) and the input electricity of solenoid valve two (107) respectively.

4. A vapor pressure reducing and temperature lowering device as defined in claim 3, wherein: the PLC (402) and the rechargeable lithium battery (403) are connected in series.

5. The vapor pressure-reducing and temperature-reducing device according to claim 1, wherein: and the first pipeline (7) and the second pipeline (10) are provided with steam drain valves (11).

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