CN205980838U

CN205980838U - Second grade dilatation formula temperature and pressure reduction ware

Info

Publication number: CN205980838U
Application number: CN201620763444.5U
Authority: CN
Inventors: 王静; 张兴春; 潘忻浩
Original assignee: Hangzhou Guoneng Steam Turbine Engineering Co Ltd
Current assignee: Hangzhou Guoneng Steam Turbine Engineering Co Ltd
Priority date: 2016-07-19
Filing date: 2016-07-19
Publication date: 2017-02-22
Anticipated expiration: 2026-07-19

Abstract

The utility model relates to a second grade dilatation formula temperature and pressure reduction ware. The purpose is that the temperature and pressure reduction ware that provides should be able to carry out in good time temperature and pressure reduction to the steam that gets into the condenser to have simple structure, the effectual characteristics of decompression humidification. Technical scheme is: second grade dilatation formula temperature and pressure reduction ware, its characterized in that: what mixing chamber and the level of tube -shape that include this temperature and pressure reduction ware stretched into the mixing chamber inner chamber spouts steam pipe and spray pipe, in the mixing chamber inner chamber, the tip that spouts the steam pipe seals and open on the pipe wall and have drain hole and a plurality of steam vents that spout towards the spray pipe, the both sides end plate of mixing chamber is being used for alternating the orifice plate that spouts the mounting panel of steam pipe and spray pipe and be used for the discharge steam respectively. Spout the steam pipe horizontal direction the bilateral symmetry arranging two spray pipes. It arranges the both sides pipe wall that spouts the steam pipe horizontal direction in to spout the steam vent. The wash port has been put to the bottom of mixing chamber.

Description

Two grades of expanding type temperature-decreased pressure reducers

Technical field

This utility model be related to a kind of be applied to electric power, the steaming plant of petrochemical industry operation, specifically a kind of two grades of expansions Appearance formula temperature-decreased pressure reducer.

Background technology

Turbine condenser, as a kind of heat exchanger, is mainly assemblied in exhaust steam in steam turbine chiller, its interior media Run under vacuum conditions, if the steam of certain back pressure temperature is passed directly in condenser will destroy equipment vacuum and to setting Standby internal generation is impacted, and causes damage of components.

Utility model content

The purpose of this utility model is to overcome the shortcomings of in above-mentioned background technology, provides a kind of two grades of expanding type pressure and temperature reducings Device, this temperature-decreased pressure reducer should be able to carry out in good time pressure and temperature reducing to the steam entering condenser, and has that structure is simple, decompression humidification The good feature of effect.

The technical solution of the utility model is：

Two grades of expanding type temperature-decreased pressure reducers it is characterised in that：This temperature-decreased pressure reducer includes mixing chamber and the level of tubular Stretch into steam jet pipe and the sparge pipe of mixing chamber inner chamber；

In described mixing chamber inner chamber, the end-enclosed of steam jet pipe and tube wall have dewatering orifice with some towards sparge pipe Jetted hole；The both sides end plate of described mixing chamber is respectively the installing plate for interting steam jet pipe and sparge pipe and is used for discharging The orifice plate of steam.

The both sides of described steam jet pipe horizontal direction are arranged symmetrically two sparge pipes.

Described jetted hole is placed in the both sides tube wall of steam jet pipe horizontal direction.

The bottom of described mixing chamber is equipped with osculum.

The beneficial effects of the utility model are：

This utility model can carry out in good time pressure and temperature reducing to the steam entering condenser, effective protection condenser equipment and The operation safety of system, the service life of extension device, and this utility model does not have rotatable parts, structure is simple and stability Good, there is preferable decompression moisturization effect.

Brief description

Fig. 1 is main structure diagram of the present utility model.

Fig. 2 be Fig. 1 A-A to cross-sectional view.

Fig. 3 is the backsight structural representation of steam jet pipe of the present utility model.

Fig. 4 is the present invention looks up structural representation of steam jet pipe of the present utility model.

Fig. 5 is the main structure diagram of orifice plate of the present utility model.

Specific embodiment

Below in conjunction with Figure of description, the utility model is described in further detail, but this utility model be not limited to Lower embodiment.

As shown in figure 1, two grades of expanding type temperature-decreased pressure reducers, including mixing chamber 1, steam jet pipe 2 and two sparge pipes 3.

The tubular shell that described mixing chamber is arranged horizontally, the both sides end plate in mixer length direction is respectively installing plate 11 With orifice plate 12；Described installing plate be provided be easy to steam jet pipe intert steam jet pipe hole and two be easy to sparge pipe intert water spray Pore (in figure omission), two water spray pores are separately positioned on the both sides in steam jet pipe hole horizontal direction；Cloth set solid on described orifice plate Steam vent；The bottom of described mixing chamber is provided with osculum 13.

As shown in Fig. 2 steam jet pipe horizontally extends in the inner chamber of mixing chamber after passing through installing plate, the tube wall of steam jet pipe inserting end On have dewatering orifice 21 with some jetted holes 22 and steam jet pipe inserting end end-enclosed；Described dewatering orifice is located at steam jet pipe pipe The bottom of wall, jetted hole is located at the both sides tube wall (jetted hole of every side becomes 60 °) of steam jet pipe horizontal direction respectively.

Described two sparge pipes horizontally extend in the inner chamber of mixing chamber after passing through installing plate, two sparge pipes are parallel to spray vapour Manage and be symmetrically positioned at the both sides of steam jet pipe horizontal direction, the tube wall of sparge pipe inserting end has some hole for water sprayings 31 simultaneously And the end-enclosed of sparge pipe inserting end.

On described steam jet pipe, the jetted hole of every side both faces towards the sparge pipe positioned at this side, simultaneously the spray on every sparge pipe Water hole is correspondingly arranged with hole for water spraying also facing steam jet pipe, jetted hole, can effectively strengthen temperature lowering effect.

Described steam jet pipe and sparge pipe are by outside steam supply or water supply；In Fig. 2, the import of steam jet pipe is located at the bottom of figure, The import of sparge pipe is located at the bottom of figure.

Operation principle of the present utility model is as follows：

The steam of uniform temperature and pressure enters in mixing chamber after jetted hole expenditure and pressure, and desuperheating water passes through spray simultaneously The hole for water spraying of water pipe enters in mixing chamber, and after steam is mixed with desuperheating water, temperature reduces, and mixed saturated vapor passes through orifice plate It is passed directly into the vacuum and steam system of condenser after reducing pressure again.

Claims

1. two grades of expanding type temperature-decreased pressure reducers it is characterised in that：This temperature-decreased pressure reducer includes mixing chamber (1) and the level of tubular Stretch into steam jet pipe (2) and the sparge pipe (3) of mixing chamber inner chamber；

In described mixing chamber inner chamber, the end-enclosed of steam jet pipe and tube wall have dewatering orifice (21) with some towards sparge pipe Jetted hole (22)；The both sides end plate of described mixing chamber be respectively the installing plate (11) being used for interting steam jet pipe and sparge pipe and For discharging the orifice plate (12) of steam.

2. two grades of expanding type temperature-decreased pressure reducers according to claim 1 it is characterised in that：Described steam jet pipe horizontal direction Both sides are arranged symmetrically two sparge pipes.

3. two grades of expanding type temperature-decreased pressure reducers according to claim 2 it is characterised in that：Described jetted hole is placed in steam jet pipe The both sides tube wall of horizontal direction.

4. two grades of expanding type temperature-decreased pressure reducers according to claim 3 it is characterised in that：The bottom of described mixing chamber is equipped with Osculum (13).