CN209820200U - Temperature and pressure reducer - Google Patents

Abstract

The utility model relates to a thermoelectricity field specifically is a temperature and pressure reducer, which comprises a housin, a support for installing the casing, including installing in shells inner wall's a plurality of fender pieces, install in the casing and be used for spraying vaporific injection apparatus of temperature-reducing water in to the casing, install respectively in the intake pipe and the outlet duct of casing two lateral walls in opposite directions, install in the air exhauster of casing, keep off the piece including installing respectively in the first baffle and the second baffle of casing two lateral walls in opposite directions, first baffle sets up with the second baffle in turn, first baffle and second baffle fall into a plurality of cavitys in with the casing, be equipped with at least one injection apparatus in every cavity, the cross-section of first baffle is on a parallel with the casing cross-section of installing intake. Has the advantages of saving cost and resources.

Description

Temperature and pressure reducer

Technical Field

The utility model relates to a thermoelectric field, concretely relates to temperature and pressure reducer.

Background

Along with the rapid advance of national economy, the dependence degree on the development of the power industry is higher and higher, and the sustainable development wave also puts higher requirements on the energy industry mode. Cogeneration (CHP) is an advanced technology for generating electricity and simultaneously producing steam, and can safely and efficiently produce electric energy and heat energy and improve the energy utilization rate. The primary role of Cogeneration (CHP) is to provide steam for the process, and the different process flows have diverse requirements on the target steam, and the steam parameters will reflect such requirements, so that the correct provision of steam pressure and temperature is crucial.

The temperature and pressure reducing device is a steam heat energy parameter (pressure and temperature) conversion device and an energy-saving device utilizing waste heat which are widely applied to cogeneration in modern industry, and the steam parameters provided by a user are reduced to the temperature and pressure which are suitable for the user through the temperature and pressure reducing device so as to meet the requirement of the user, fully save heat energy and reasonably use the heat energy.

In the prior art, the temperature-reducing water is added into a pipeline flowing through high-temperature steam, and the temperature-reducing water is vaporized after absorbing heat, so that the purpose of temperature reduction is achieved. However, the design of the temperature-reducing water spray head is unreasonable, and the temperature-reducing water is sprayed into the pipeline in a straight line to form a large amount of water drops which are discharged after absorbing the heat in the pipeline. The desuperheating water can not be fully contacted with high-temperature steam, and can be directly discharged, so that the energy consumption and cost are increased.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a temperature and pressure reducer, high-temperature steam and desuperheating water fully contact realize the purpose of practicing thrift cost and resource.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a temperature and pressure reducer, which comprises a housin, a support for installing the casing, still including installing a plurality of fenders piece in shells inner wall, install in the casing and be used for spraying the injection apparatus of vaporific temperature reduction water in the casing, intake pipe and the outlet duct of both sides in casing length direction communicate respectively, install in the first air exhauster of casing, keep off first baffle and second baffle including installing respectively in casing direction of height both ends, first baffle sets up with the second baffle in turn, first baffle and second baffle divide into a plurality of open-ended cavities that have with the casing, be equipped with at least one injection apparatus in every cavity, the cross-section of first baffle is on a parallel with the casing cross-section of installing intake pipe and outlet duct.

Through adopting above-mentioned technical scheme, high-temperature steam gets into in the casing under the effect of first air exhauster, and the vaporific desuperheating water of injection apparatus spun mixes and rapid evaporation is low temperature steam with high-temperature steam. Compared with the method of directly spraying liquid direct-flow water, the atomized temperature-reducing water can diffuse around by spraying, and the contact area between the temperature-reducing water and high-temperature steam is increased. And the water hammer phenomenon caused by water accumulation in the shell is also avoided. The first baffle and the second baffle divide the shell into a plurality of chambers, and the first baffle and the second baffle are respectively arranged on the inner walls of the two opposite shells, so that the moving route of the gas in the shell is multi-section bending. Therefore, the time of the high-temperature gas staying in the shell is increased, and the atomized temperature-reducing water sprayed by the spraying device is fully contacted with the high-temperature steam.

The utility model discloses a further set up to: all the first baffle plates and the second baffle plates are connected to the shell in a sliding mode along the length direction of the shell, and a driving device used for driving all the first baffle plates and the second baffle plates to do reciprocating motion together is installed on the shell.

Through adopting above-mentioned technical scheme, all first baffles of drive arrangement drive and second baffle are reciprocating motion along casing length direction together for the flow velocity of gaseous in the casing, make high temperature fog lower the temperature more fast.

The utility model discloses a further set up to: the driving device comprises a screw rod sequentially penetrating through all the first baffle plates and the second baffle plates along the length direction of the shell and a driving piece used for driving the screw rod to rotate forward and backward, the screw rod is in threaded connection with all the first baffle plates and the second baffle plates, and the screw rod is axially fixed and is connected to the shell in a circumferential rotating mode.

Through adopting above-mentioned technical scheme, driving piece drive screw rod is just reversing the rotation, because first baffle and second baffle only along rectilinear motion, can not rotate, so when the screw rod rotated, all first baffles and second baffle moved along casing length direction together.

The utility model discloses a further set up to: guide rods are sequentially arranged on all the first baffles and the second baffles in a penetrating mode, the two ends of each guide rod are connected with the inner wall of the shell, and the guide rods are arranged along the length direction of the shell.

Through adopting above-mentioned technical scheme, the first baffle and the second baffle of cover on the guide bar can only follow guide bar axial motion, move along casing length direction promptly, can not rotate.

The utility model discloses a further set up to: the injection device comprises an installation frame arranged on the inner wall of the shell, at least one injection shell arranged on the installation frame, an air inlet pipe and a liquid inlet pipe which are arranged on the shell and sequentially communicated with each injection shell, a water suction pump arranged on the liquid inlet pipe, and a second exhaust fan arranged on the air inlet pipe, wherein the lower end of each injection shell is provided with a jet orifice.

Through adopting above-mentioned technical scheme, the desuperheating water gets into from the admission pipe and sprays in the shell under the suction pump effect. Compressed air enters the jet shell from the air inlet pipe under the action of the second exhaust fan. Because the flow velocity (generally can be greater than tens meters per second) of the compressed air entering the spraying shell is far greater than the speed of the desuperheating water entering the spraying shell, the two contact with each other to generate collision and friction to break the desuperheating water into fine liquid drops, namely, the friction acting force of the gas on the desuperheating water is far greater than the surface tension of the desuperheating water, so that the desuperheating water in the spraying shell is broken into filiform jet flow or liquid film, and is further broken into mist small particles under the action of the compressed air, and finally, the mist is blown out from the spraying opening, so that the desuperheating water is atomized.

The utility model discloses a further set up to: the inner shell is arranged in the spraying shell, the lower end of the inner shell is communicated with the spraying opening, air inlet holes are respectively formed in two sides of the inner shell in the width direction, the upper end of the inner shell is communicated with the liquid inlet pipe, and the air inlet pipe is communicated with the upper end of the spraying shell.

Through adopting above-mentioned technical scheme, compressed gas enters into along the admission pipe under the effect of second air exhauster and sprays the shell inside to in getting into the inner shell from the through-hole. The desuperheating water enters the inner shell along the liquid inlet pipe under the action of the water suction pump. Because the air inlet is opened in inner shell both sides wall, inlet line and inner shell top intercommunication, so, from the desuperheating water of inlet line outflow, mix with the compressed gas who lets in from the through-hole. Thus, the compressed gas and the desuperheating water are fully mixed, and the desuperheating water is sprayed out of the spray opening in a mist state to the maximum extent.

The utility model discloses a further set up to: the upper end of the inner shell is arranged in a tip shape towards one end of the air inlet pipe.

By adopting the technical scheme, after the compressed gas enters the jet shell, the compressed gas meets the upper end of the inner shell. Is divided into two parts by the upper end of the inner shell. If the upper end of the inner shell is a plane, a part of the compressed gas stays at the plane, and the flow velocity of the compressed gas is influenced.

The utility model discloses a further set up to: be equipped with the reaction plate between adjacent first baffle and the second baffle, the reaction plate is located injection apparatus's below and the reaction plate goes up to open has a plurality of through-holes, and the reaction plate is equipped with two at least along the casing direction of height, and the through-hole on two adjacent reaction plates is dislocation set.

By adopting the technical scheme, a plurality of reaction plates with through holes are additionally arranged, and the high-temperature steam body and the temperature-reducing mist meet and concentrate at the through holes and conduct heat conduction. Because the through holes on two adjacent reaction plates are arranged in a staggered manner, the high-temperature steaming body is fully contacted with the temperature-reducing mist by prolonging the contact time between the high-temperature steaming body and the temperature-reducing mist.

To sum up, the utility model has the advantages of it is following:

1. high-temperature steam enters the shell under the action of the first exhaust fan, and the atomized desuperheating water sprayed by the spraying device is mixed with the high-temperature steam and quickly evaporated into low-temperature steam, so that water resources are saved, and the cost is reduced;

2. the added stop piece makes the travel route of the gas in the shell be multi-section bending. Therefore, the time of the high-temperature gas staying in the shell is increased, and the atomized temperature-reducing water sprayed by the spraying device is fully contacted with the high-temperature steam.

Drawings

Fig. 1 is a sectional view in the longitudinal direction of the present invention, in which solid arrows indicate the flow direction of high-temperature steam in the casing;

fig. 2 is a cross-sectional view in the width direction of the present invention, in which solid arrows indicate the flow direction of compressed gas and hollow arrows indicate the flow direction of desuperheating water;

reference numerals: 1. a housing; 11. a sliding groove; 3. an injection device; 31. a mounting frame; 32. a spray shell; 33. an inner shell; 331. an air inlet; 34. a liquid inlet pipe; 35. entering an air pipe; 36. a water pump; 37. a second exhaust fan; 38. an ejection port; 4. an air inlet pipe; 5. an air outlet pipe; 6. a first exhaust fan; 7. a stopper; 71. a first baffle plate; 72. a second baffle; 73. a sliding projection; 8. a drive device; 81. a screw; 82. a guide rod; 83. a drive member; 9. a reaction plate; 91. and a through hole.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, the temperature and pressure reducer includes a casing 1, a spraying device 3 mounted on the casing 1 and used for spraying mist-like temperature-reducing water into the casing 1, an air inlet pipe 4 and an air outlet pipe 5 respectively communicated with both sides of the casing 1 in the length direction, and a first exhaust fan 6 mounted on the casing 1.

High-temperature steam enters the shell 1 from the air inlet pipe 4 under the action of the first exhaust fan 6, and the atomized desuperheating water sprayed by the spraying device 3 is mixed with the high-temperature steam and quickly evaporated into low-temperature steam. Then, the gas in the housing 1 flows out of the housing 1 through the outlet pipe 5.

The air inlet pipe 4 is arranged downwards towards one end inside the shell 1. If, high temperature steam level gets into casing 1, then after high temperature steam got into casing 1, the high temperature steam velocity of flow that is close to intake pipe 4 department is lower, and the high temperature steam velocity of flow that is far away from intake pipe 4 department is higher. The flow velocity of the high-temperature steam is unevenly distributed on the section of the shell 1, so that the bias flow phenomenon of the high-temperature steam is caused, and a vortex area is formed. Meanwhile, the section of the shell 1 is large, and the high-temperature steam is unevenly distributed in the shell 1 due to the uneven distribution, so that the heat conduction efficiency is reduced.

The inner wall of the shell 1 is provided with a plurality of stoppers 7, each stopper 7 comprises a first baffle 71 arranged at the lower end of the shell 1 and a second baffle 72 arranged at the upper end of the shell 1, and the first baffles 71 and the second baffles 72 are alternately arranged. The first baffle 71 has a cross section parallel to the cross section of the housing 1 to which the inlet pipe 4 and the outlet pipe 5 are mounted. All the first baffle plates 71 and the second baffle plates 72 are slidably connected to the housing 1 along the length direction of the housing 1, and the housing 1 is provided with a driving device 8 for driving all the first baffle plates 71 and the second baffle plates 72 to reciprocate together. A reaction plate 9 is arranged between the adjacent first baffle plate 71 and the second baffle plate 72, the reaction plate 9 is positioned below the injection device 3, a plurality of through holes 91 are formed in the reaction plate 9, at least two reaction plates 9 are arranged along the height direction of the shell 1, and the through holes 91 in the two adjacent reaction plates 9 are arranged in a staggered manner.

Since the first baffle plate and the second baffle plate 72 divide the interior of the housing 1 into a plurality of chambers, and the first baffle plate 71 and the second baffle plate 72 are respectively installed on the inner walls of the two housing 1 facing each other, the traveling route of the gas in the housing 1 is curved in a plurality of stages. In this way, the time during which the high-temperature gas stays in the casing 1 increases, and the mist-like desuperheating water sprayed from the spraying device 3 is brought into sufficient contact with the high-temperature steam. A plurality of reaction plates 9 with through holes 91 are added, and the high-temperature steam and the temperature-reduced mist meet and are concentrated at the through holes 91 and are subjected to heat conduction. Because the through holes 91 on two adjacent reaction plates 9 are arranged in a staggered way, the high-temperature steaming body is fully contacted with the temperature-reducing mist by prolonging the contact time between the high-temperature steaming body and the temperature-reducing mist. The driving device 8 drives all the first baffles 71 and all the second baffles 72 to reciprocate along the length direction of the shell 1, so that the flowing speed of the gas in the shell 1 is increased, and the high-temperature mist is cooled more quickly.

The driving device 8 includes a screw 81 sequentially passing through all the first baffle plates 71 and the second baffle plates 72 along the length direction of the housing 1, a guide rod 82 sequentially passing through all the first baffle plates 71 and the second baffle plates 72, and a driving member 83 for driving the screw 81 to rotate forward and backward. The screw 81 is screwed to all the first 71 and second 72 baffles, the screw 81 being axially fixed and circumferentially rotationally connected to the housing 1. Both ends of the guide rod 82 are connected with the inner wall of the housing 1, and the guide rod 82 is arranged along the length direction of the housing 1. The driving member 83 is a servo motor, and the driving member 83 is electrically connected to an external power source through a wire. The drive member 83 includes a motor shaft connected to the screw 81. The upper and lower inner walls of the shell 1 are provided with sliding grooves 11, sliding protrusions 73 are fixed on the first baffle 71 and the second baffle 72, and the sliding protrusions 73 are embedded and are connected to the sliding grooves 11 in a sliding manner along the length direction of the shell 1.

The first baffle 71 and the second baffle 72 sleeved on the guide rod 82 can only move along the axial direction of the guide rod 82, namely along the length direction of the shell 1. Since the slide projection 73 slides in the slide groove 11, the first shutter 71 and the second shutter 72 cannot rotate. When the screw 81 is driven by the driving member 83 to rotate in the forward direction, the first blocking plate 71 and the second blocking plate 72, which are in threaded connection with the screw 81, move in the direction of the outlet pipe 5 along the length direction of the housing 1. When the screw 81 is driven by the driving member 83 to rotate reversely, the first blocking plate 71 and the second blocking plate 72 move along the length direction of the housing 1 toward the air inlet pipe 4. In this way, the reciprocating motion of all the first shutter 71 and the second shutter 72 together is achieved.

As shown in fig. 1 and 2, the first baffle 71 and the second baffle 72 divide the interior of the housing 1 into a plurality of chambers having openings, and at least one injection device 3 is provided in each chamber. The injection device 3 comprises a mounting frame 31 mounted on the inner wall of the housing 1, three injection shells 32 mounted on the mounting frame 31, an inner shell 33 mounted in each injection shell 32, a liquid inlet pipe 34 sequentially communicated with each inner shell 33, a gas inlet pipe 35 sequentially communicated with each injection shell 32, a water pump 36 mounted on the liquid inlet pipe 34, and a second exhaust fan 37 mounted on the gas inlet pipe 35. The lower end of each jet casing 32 is opened with a jet port 38, and the end of the inner casing 33 is communicated with the jet port 38. Both sides of the inner casing 33 in the width direction are respectively opened with air intake holes 331. The air intake holes 331 are inclined downward toward the inside of the inner case 33. The upper end of the inner shell 33 is disposed at a tip end facing the air inlet pipe 35.

The compressed gas enters the interior of the ejector shell 32 along the inlet pipe 35 under the action of the second suction fan 37. The compressed gas, after entering the ejector shell 32, encounters the upper end of the inner shell 33. Is divided into two parts by the upper end of the inner casing 33. The two portions of compressed gas are separately and downwardly submerged into the inner casing 33 from the two through holes 91 at different positions. The desuperheated water enters the inner housing 33 through the inlet pipe 34 by the suction pump 36. Because the flow velocity (generally, tens of meters per second) of the compressed air entering the spraying shell 32 is far greater than the speed of the desuperheating water entering the spraying shell 32, the two contact with each other to generate collision and friction to break the desuperheating water into fine liquid drops, namely, the friction acting force of the gas on the desuperheating water is far greater than the surface tension of the desuperheating water, so that the desuperheating water in the spraying shell 32 is broken into filiform jet flow or liquid film, and is further broken into mist small particles under the action of the compressed air, and finally the mist is blown out from the spraying opening 38, so that the desuperheating water is atomized. Since the air inlet holes 331 are opened at both side walls of the inner casing 33 and the inlet pipe 34 is communicated with the upper portion of the inner casing 33, the desuperheating water flowing out of the inlet pipe 34 is mixed with the compressed air introduced from the through hole 91. In this way, the compressed gas and the desuperheating water are sufficiently mixed, and the desuperheating water is jetted out from the jet port 38 in a mist state to the maximum extent.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (8)

1. A temperature and pressure reducer comprises a shell (1), and is characterized in that: also comprises a plurality of stoppers (7) arranged on the inner wall of the shell (1), a spraying device (3) arranged on the shell (1) and used for spraying mist desuperheating water into the shell (1), an air inlet pipe (4) and an air outlet pipe (5) which are respectively communicated with the two sides of the length direction of the shell (1), and a first exhaust fan (6) arranged on the shell (1), keep off piece (7) including installing first baffle (71) and second baffle (72) at casing (1) direction of height both ends respectively, first baffle (71) and second baffle (72) set up in turn, first baffle (71) and second baffle (72) divide into a plurality of open-ended cavities with casing (1) in, be equipped with at least one injection apparatus (3) in every cavity, the cross-section of first baffle (71) is on a parallel with the casing (1) cross-section of installing intake pipe (4) and outlet duct (5).

2. A temperature-reducing pressure-reducing device as set forth in claim 1, wherein: all the first baffle plates (71) and the second baffle plates (72) are connected to the shell (1) in a sliding mode along the length direction of the shell (1), and a driving device (8) used for driving all the first baffle plates (71) and the second baffle plates (72) to reciprocate together is mounted on the shell (1).

3. A temperature-reducing pressure-reducing device as set forth in claim 2, wherein: drive arrangement (8) are including wearing to locate screw rod (81) of all first baffles (71) and second baffle (72), be used for driving screw rod (81) forward and reverse pivoted driving piece (83) in proper order along casing (1) length direction, and screw rod (81) threaded connection is in all first baffles (71) and second baffle (72), and screw rod (81) axial fixity and circumferential direction connect in casing (1).

4. A temperature-reducing pressure-reducing device as set forth in claim 3, wherein: all wear to be equipped with guide rod (82) in proper order on first baffle (71) and the second baffle (72), guide rod (82) both ends link together with casing (1) inner wall, and guide rod (82) set up along casing (1) length direction.

5. A temperature-reducing pressure-reducing device as set forth in claim 1, wherein: the injection device (3) comprises an installation frame (31) installed on the inner wall of the shell (1), at least one injection shell (32) installed on the installation frame (31), an air inlet pipe (35) and a liquid inlet pipe (34) which are installed on the shell (1) and sequentially communicated with each injection shell (32), a water suction pump (36) installed on the liquid inlet pipe (34), and a second exhaust fan (37) installed on the air inlet pipe (35), wherein a jet orifice (38) is formed in the lower end of each injection shell (32).

6. A temperature-reducing pressure-reducing device as defined in claim 5, wherein: an inner shell (33) is arranged in each spraying shell (32), the lower end of each inner shell (33) is communicated with a spraying opening (38), air inlet holes (331) are formed in the two sides of each inner shell (33) in the width direction, the upper end of each inner shell (33) is communicated with a liquid inlet pipe (34), and an air inlet pipe (35) is communicated with the upper end of each spraying shell (32).

7. A temperature-reducing pressure-reducing device as defined in claim 6, wherein: the upper end of the inner shell (33) is arranged in a pointed manner towards one end of the air inlet pipe (35).

8. A temperature-reducing pressure-reducing device as set forth in claim 1, wherein: be equipped with reaction plate (9) between adjacent first baffle (71) and second baffle (72), reaction plate (9) are located the below of injection apparatus (3) and are opened on reaction plate (9) have a plurality of through-holes (91), and reaction plate (9) are equipped with two at least along casing (1) direction of height, and through-hole (91) on two adjacent reaction plates (9) are dislocation set.