CN217082195U - Steam temperature and pressure reduction device system - Google Patents

Abstract

The utility model provides a steam temperature and pressure reducing device system, which comprises a pressure reducing system and a temperature reducing system, wherein the pressure reducing system comprises a manual gate valve and an electric automatic regulating valve; the temperature reduction system comprises a deionized water tank, a water supply variable frequency pump and a check valve; the manual gate valve and the electric automatic regulating valve are directly connected on the same steam pipeline, the deionized water tank, the water supply variable frequency pump and the check valve are sequentially connected through pipelines, and the outlet end of the check valve is connected with the insert pipe and enters the steam pipeline. The utility model has simple installation and wide practicability, and carries out secondary temperature and pressure reduction on the superheated steam conveyed from the power plant through the device system, thereby not only meeting the production requirement, but also achieving the purposes of energy conservation and consumption reduction; the manual gate valve increases the pressure adjustable range, and steam conveying can be quickly and manually cut off in case of emergency; and a deionized water tank is added to solve the problem of insufficient water supply caused by the increase of the periodical water inflow.

Description

Steam temperature and pressure reduction device system

Technical Field

The utility model relates to a steam temperature and pressure reduction device system belongs to energy-conserving and heat energy comprehensive utilization technical field.

Background

Steam, also known as "water vapor", is a product obtained by vaporizing water under certain conditions and is generally used as a heat source substance in chemical industry production. In a chemical industrial park, a thermal power plant for supplying steam is generally equipped, water is changed into a gas phase from a liquid phase through evaporation in a steam boiler to obtain steam, and then the steam is conveyed to other enterprises to be used as a heat source for production heating.

In most chemical industry gardens, the french formula of steam power plant delivery steam is one and joins in marriage many, and the chemical production mode is the variety, and different production systems all differ to the temperature and the pressure requirement of steam, and the power plant is for energy saving and consumption reduction, and the steam of general transport is superheated steam. Superheated steam is rarely used in the heat transfer process of an industrial process because superheated steam must be cooled to saturation temperature before condensing to release enthalpy of vaporization, and it is clear that cooling superheated steam to saturation temperature releases very little heat compared to the enthalpy of vaporization of saturated steam, thereby reducing the performance of the process equipment. Therefore, in order to meet different production requirements, enterprises need to reprocess the steam, and the most common mode is secondary temperature and pressure reduction.

Disclosure of Invention

An object of the utility model is to provide a steam temperature and pressure reduction device system that degree of automation is high, temperature pressure adjustable range is wide, the security performance is strong, as superheated steam's secondary temperature and pressure reduction device.

The technical solution of the utility model is as follows: a steam temperature and pressure reduction device system comprises a pressure reduction system and a temperature reduction system, wherein the pressure reduction system comprises a manual gate valve and an electric automatic regulating valve; the temperature reduction system comprises a deionized water tank, a water supply variable frequency pump and a check valve; the manual gate valve and the electric automatic regulating valve are directly connected on the same steam pipeline, the deionized water tank, the water supply variable frequency pump and the check valve are sequentially connected through pipelines, and the outlet end of the check valve is connected with the insert pipe and enters the steam pipeline.

Furthermore, the inlet end of the steam pipeline is connected with an external superheated steam supply device, and the outlet end of the steam pipeline is connected with a steam device.

Furthermore, the manual gate valve and the electric automatic regulating valve are sequentially arranged between the inlet end and the outlet end of the steam pipeline, and the insertion pipe at the outlet end of the check valve is connected to the steam pipeline at the rear side part of the electric automatic regulating valve.

Furthermore, the water outlet of the deionized water tank is connected to the inlet end of the water supply variable frequency pump through a pipeline, and the outlet end of the water supply variable frequency pump is connected to the inlet end of the check valve through a pipeline.

Compared with the prior art, the utility model has the advantages of:

1) the device is simple in system installation and wide in practicability, the requirements of different production systems on the temperature and the pressure of steam are met, superheated steam conveyed by a power plant is subjected to secondary temperature and pressure reduction through the device system, the production requirements are met, and the purposes of energy conservation and consumption reduction are achieved;

2) compared with a common temperature and pressure reducing device, the device system is provided with one more manual gate valve, so that the pressure adjustable range is greatly increased, the production device capable of meeting the stage fluctuation of the steam quantity demand can be provided, and meanwhile, the device is also a safety protection device, and the steam delivery can be quickly and manually cut off in case of emergency, such as power jump, instrument failure and the like;

3) the deionized water tank is added, the water inlet system is conveyed through the variable frequency water pump, a buffer tank is equivalently added, and the problem of insufficient water supplement caused by the increase of the stage water inflow is solved.

Drawings

FIG. 1 is a schematic structural diagram of the steam temperature and pressure reducing device system of the present invention.

Detailed Description

The technical scheme of the utility model is further explained in the following with the attached drawings. Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of description of the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Moreover, the terms "first," "second," and the like are used in a generic order for descriptive purposes only and not for purposes of indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, a first feature "on," "above," and "over" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The steam temperature and pressure reducing device system shown in fig. 1 comprises a pressure reducing system and a temperature reducing system, wherein the pressure reducing system comprises a manual gate valve 1 and an electric automatic regulating valve 2; the temperature reduction system comprises a deionized water tank 3, a water supply variable frequency pump 4 and a check valve 5; the manual gate valve 1 and the electric automatic regulating valve 2 are directly connected on the same steam pipeline, the deionized water tank 3, the water supply variable frequency pump 4 and the check valve 5 are sequentially connected through pipelines, and the outlet end of the check valve 5 is connected with an insert pipe and enters the steam pipeline.

The inlet end of the steam pipeline is connected with an external superheated steam supply device, and the outlet end of the steam pipeline is connected with a steam device 6.

The manual gate valve 1 and the electric automatic regulating valve 2 are sequentially arranged between the inlet end and the outlet end of the steam pipeline, and the insertion pipe at the outlet end of the check valve 5 is connected to the steam pipeline at the rear part of the electric automatic regulating valve 2.

The water outlet of the deionized water tank 3 is connected with the inlet end of a water supply variable frequency pump 4 through a pipeline, and the outlet end of the water supply variable frequency pump 4 is connected with the inlet end of a check valve 5 through a pipeline.

When the device is actually used, once pressure reduction is carried out on the superheated steam through the manual gate valve 1 and the electric automatic regulating valve 2 to convert the superheated steam into pressure-reduced steam; the water in the deionized water tank 3 is pumped out by the water supply variable frequency pump 4 and is sent into a steam pipeline through the check valve 5, the reduced pressure steam is cooled, and the temperature-reducing and pressure-reducing steam after secondary cooling is generated. In the whole process, the steam pressure and the temperature can be regulated and controlled to required parameter indexes by regulating the opening of the valve position and the water inflow.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims (4)

1. A steam temperature and pressure reduction device system comprises a pressure reduction system and a temperature reduction system, and is characterized in that: the pressure reducing system comprises a manual gate valve (1) and an electric automatic regulating valve (2); the temperature reduction system comprises a deionized water tank (3), a water supply variable frequency pump (4) and a check valve (5); wherein manual gate valve (1) with electricity automatically regulated valve (2) directly link to each other on same steam conduit, deionized water case (3), water supply variable frequency pump (4) and check valve (5) link to each other in proper order through the pipeline, the exit termination intubate of check valve (5) enters steam conduit.

2. A steam desuperheater and pressure reduction device system of claim 1, wherein: the inlet end of the steam pipeline is connected with an external superheated steam supply device, and the outlet end of the steam pipeline is connected with a steam device (6).

3. A steam desuperheater and pressure reduction device system of claim 1, wherein: the manual gate valve (1) and the electric automatic regulating valve (2) are sequentially arranged between the inlet end and the outlet end of the steam pipeline, and the insertion pipe at the outlet end of the check valve (5) is inserted into the steam pipeline at the rear side part of the electric automatic regulating valve (2).

4. A steam desuperheater and pressure reduction device system of claim 1, wherein: the water outlet of the deionized water tank (3) is connected to the inlet end of the water supply variable frequency pump (4) through a pipeline, and the outlet end of the water supply variable frequency pump (4) is connected to the inlet end of the check valve (5) through a pipeline.

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