Efficient and stable temperature and pressure reducer

Abstract

The utility model discloses an efficient stable temperature and pressure reducer, which relates to the field of pipeline adjustment, and is characterized in that the efficient stable temperature and pressure reducer comprises a first connecting pipe and a second connecting pipe which are used for being connected with a steam pipeline, a pressure reducing valve used for reducing steam pressure is in flange connection with the end of the first connecting pipe, and two cooling branch pipes are in flange connection with the right end of the pressure reducing valve; the right ends of the cooling branch pipes are connected with the second connecting pipe through flanges, second control valves are arranged on the surfaces of the two cooling branch pipes, clamping covers are movably connected to the tops of the two cooling branch pipes in a clamped mode, and cooling mechanisms used for cooling steam are arranged on the surfaces of the clamping covers. When the efficient and stable temperature and pressure reducer is used, the effect that the atomization nozzle can be conveniently and rapidly detached is achieved, the replacement process is more convenient, the temperature and pressure reduction effect can still be achieved in the replacement process, normal conveying of steam is not affected, impurities mixed in the steam can be filtered, and the service life of the steam is prolonged. The steam cleanness is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline regulation, and more specifically, to a high-efficiency and stable temperature and pressure reducing device. Background Art

[0002] The main function of the desuperheater and pressure reducer is to reduce the temperature and pressure of the fluid to meet the requirements of the equipment or system. In the industrial field, when the fluid (such as steam, gas or liquid) passes through the pipeline or equipment, there may be high temperature and high pressure, which will pose a certain threat to the normal operation and safety of the equipment.

[0003] The Chinese patent document with the authorization announcement number CN206833282U discloses a split-type temperature and pressure reducing device, including a steam pressure reducing valve and a temperature reducing water regulating valve; the steam pressure reducing valve includes a valve cover, a porous valve seat, a porous valve cage, and a valve core arranged in the valve body, and the valve cover, the porous valve seat, and the porous valve cage are sequentially connected and sleeved outside the valve core; the valve cover is fixedly connected to the actuator. With respect to the above technical solution, there are the following defects in use: the structure for providing cooling water spray in the prior art is installed on the pipeline through multiple bolts, and it is troublesome to disassemble when the spray nozzle needs to be replaced, and the pipeline needs to be shut down for maintenance during replacement, and the pipeline will temporarily lose the temperature and pressure reduction effect, affecting steam transportation.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide an efficient and stable temperature and pressure reducing device.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions: a highly efficient and stable temperature and pressure reducing device, comprising a first connecting pipe and a second connecting pipe for connecting a steam pipeline, the first connecting pipe end flange is connected to a pressure reducing valve for reducing the steam pressure, the right end flange of the pressure reducing valve is connected to two cooling branch pipes, and the right end of the cooling branch pipe is flange-connected to the second connecting pipe, the surfaces of the two cooling branch pipes are each provided with a second control valve, the tops of the two cooling branch pipes are each movably clamped with a clamping cover, the surface of the clamping cover is provided with a cooling mechanism for cooling the steam, the surface of the clamping cover is movably plugged with a filter screen, the surface of the clamping cover is provided with a first locking mechanism for limiting the filter screen, and the surface of the cooling branch pipe is provided with a second locking mechanism for limiting the clamping cover.

[0007] The utility model is further configured as follows: the cooling mechanism includes a water inlet pipe, and one end of the water inlet pipe is connected to a cooling water source, the bottom end of the water inlet pipe is fixedly connected to two water supply branches, the surfaces of the two water supply branches are each provided with a first control valve, the middle end of the water supply branch is provided with a flexible pipe, the surface of the water supply branch is provided with an atomizing nozzle, and the atomizing nozzle is located inside the cooling branch.

[0008] The utility model is further configured as follows: the first locking mechanism includes a support plate, and the support plate is fixedly connected to the top surface of the clamping cover, a C-shaped plate is movably inserted on the left side of the support plate, a spring is fixedly connected between the C-shaped plate and the support plate, a pin is fixedly connected to the left side of the C-shaped plate, a concave hole matching the pin is opened on the surface of the filter screen plate, and the inner wall of the concave hole is fixedly connected to the end of the pin.

[0009] The utility model is further configured as follows: the second locking mechanism includes a positioning clamp, and the positioning clamp is fixed to the surface of the cooling branch pipe by bolts, the surface of the positioning clamp is fixedly connected to a connecting plate, the middle part of the connecting plate is threadedly connected to a screw rod, the top of the screw rod is fixedly connected to a knob, the bottom end of the screw rod is rotatably connected to a fixing plate, the top surface of the fixing plate is fixedly connected to an insertion rod, and the insertion rod is movably connected to the connecting plate, the left side and right side surfaces of the clamping cover are fixedly connected to a slot, and the end of the insertion rod is movably connected to the slot.

[0010] The utility model is further configured as follows: the water supply branch pipe is a metal bellows pipe.

[0011] The utility model is further configured as follows: a sealing gasket is provided on the external fixing sleeve of the clamping cover, and the sealing gasket is fitted with the surface of the cooling branch pipe.

[0012] In summary, the utility model has the following beneficial effects: steam enters the pressure reducing valve through the first connecting pipe, the steam is decompressed by the pressure reducing valve, the decompressed steam flows into the cooling branch pipe, under normal circumstances, the second control valve is used to control only one cooling branch pipe to be opened for steam circulation, atomized spray water can be sent into the cooling branch pipe through the cooling mechanism to cool the steam, impurities in the steam can be filtered through the filter screen, the steam after pressure reduction and temperature reduction is transported through the second connecting pipe, and when the atomizing nozzle needs to be replaced, the second control valve of the passage is closed, and the second control valve on the surface of another cooling branch pipe is opened. The second control valve allows the steam to be diverted for transportation. The second locking mechanism can be used to release the limit on the clamping cover, and the atomizing nozzle can be taken out of the cooling branch pipe for quick replacement. At this time, the filter screen is also pulled out of the cooling branch pipe, so the filter screen can be cleaned and the limit effect of the first locking mechanism can be released. The filter screen can be disassembled and replaced, which facilitates the quick disassembly of the atomizing nozzle during use, making the replacement process more convenient. During the replacement process, it can still provide a cooling and pressure reduction effect without affecting the normal transportation of steam. In addition, it can filter impurities mixed in the steam to ensure the cleanliness of the steam. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0014] Figure 2 This is a front cross-sectional view of the clamping cover structure of the utility model;

[0015] Figure 3 It is a top view of the structure of the first locking mechanism of the utility model;

[0016] Figure 4 It is an enlarged structural diagram of the second locking mechanism of the utility model.

[0017] In the figure: 1. first connecting pipe; 2. pressure reducing valve; 3. cooling branch pipe; 4. cooling mechanism; 401. water inlet pipe; 402. water supply branch pipe; 403. first control valve; 404. flexible pipe; 405. atomizing nozzle; 5. clamping cover; 6. filter screen; 7. first locking mechanism; 701. support plate; 702. C-shaped plate; 703. spring; 704. pin; 8. second locking mechanism; 801. positioning clamp; 802. connecting plate; 803. screw rod; 804. knob; 805. fixing plate; 806. plug rod; 807. slot; 9. sealing gasket; 10. second connecting pipe; 11. second control valve. DETAILED DESCRIPTION

[0018] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] High efficiency and stable temperature and pressure reducer, reference Figures 1 to 4As shown, it includes a first connecting pipe 1 and a second connecting pipe 10 for connecting a steam pipeline, the end flange of the first connecting pipe 1 is connected to a pressure reducing valve 2 for reducing the steam pressure, the right end flange of the pressure reducing valve 2 is connected to two cooling branch pipes 3, and the right end of the cooling branch pipe 3 is flange-connected to the second connecting pipe 10, the surfaces of the two cooling branch pipes 3 are each provided with a second control valve 11, the tops of the two cooling branch pipes 3 are both movably clamped with a clamping cover 5, the surface of the clamping cover 5 is provided with a cooling mechanism 4 for cooling the steam, the surface of the clamping cover 5 is movably plugged with a filter screen plate 6, the surface of the clamping cover 5 is provided with a first locking mechanism 7 for limiting the filter screen plate 6, and the surface of the cooling branch pipe 3 is provided with a second locking mechanism 8 for limiting the clamping cover 5.

[0020] In the above embodiment, steam enters the pressure reducing valve 2 through the first connecting pipe 1, and the pressure reducing valve 2 reduces the pressure of the steam. The steam after pressure reduction flows into the cooling branch pipe 3. Under normal circumstances, the second control valve 11 controls only one cooling branch pipe 3 to be opened for steam circulation. The cooling mechanism 4 can be used to send atomized spray water into the cooling branch pipe 3 to cool the steam. The impurities in the steam can be filtered through the filter screen 6. The steam after pressure reduction and temperature reduction is transported through the second connecting pipe 10. When the atomizing nozzle 405 needs to be replaced, the second control valve 11 of the passage is closed, and the second control valve 11 on the surface of another cooling branch pipe 3 is opened to divert the steam for transportation. The second locking mechanism 8 can be used to release the limit of the clamping cover 5, and the atomizing nozzle 405 can be taken out of the cooling branch pipe 3 for quick replacement. At this time, the filter screen 6 is also pulled out of the cooling branch pipe 3. The filter screen 6 can be cleaned, and then the limit of the first locking mechanism 7 is released, and the filter screen 6 can be disassembled and replaced.

[0021] refer to Figure 1 , Figure 2 As shown, the cooling mechanism 4 includes a water inlet pipe 401, and one end of the water inlet pipe 401 is connected to the cooling water source, and the bottom end of the water inlet pipe 401 is fixedly connected to two water supply branches 402, and the surfaces of the two water supply branches 402 are each provided with a first control valve 403, and the middle end of the water supply branch 402 is provided with a flexible pipe 404, and the surface of the water supply branch 402 is provided with an atomizing nozzle 405, and the atomizing nozzle 405 is located inside the cooling branch 3.

[0022] In the above embodiment: the cooling water source is connected via the water inlet pipe 401, the cooling water is transported via the water supply branch pipe 402, and sprayed into the steam for cooling via the atomizing nozzle 405, and the water supply branch pipe 402 can be opened and closed by the first control valve 403.

[0023] refer to Figure 1 , Figure 2 , Figure 3As shown, the first locking mechanism 7 includes a support plate 701, and the support plate 701 is fixedly connected to the top surface of the clamping cover 5, a C-shaped plate 702 is movably inserted on the left side of the support plate 701, a spring 703 is fixedly connected between the C-shaped plate 702 and the support plate 701, a pin 704 is fixedly connected to the left side of the C-shaped plate 702, a concave hole matching the pin 704 is opened on the surface of the filter screen plate 6, and the inner wall of the concave hole is fixedly connected to the end of the pin 704.

[0024] In the above embodiment, by pressing the C-shaped plate 702 to the right, the spring 703 is compressed, thereby driving the pin 704 to move to the right, so that the end of the pin 704 is separated from the inner wall of the recessed hole, thereby releasing the limit on the filter screen plate 6.

[0025] refer to Figure 1 , Figure 4 As shown, the second locking mechanism 8 includes a positioning clamp 801, and the positioning clamp 801 is fixed to the surface of the cooling branch pipe 3 by bolts, the surface of the positioning clamp 801 is fixedly connected with a connecting plate 802, the middle part of the connecting plate 802 is threadedly connected with a screw rod 803, the top of the screw rod 803 is fixedly connected with a knob 804, the bottom end of the screw rod 803 is rotatably connected with a fixed plate 805, the top surface of the fixed plate 805 is fixedly connected with an insertion rod 806, and the insertion rod 806 is movably connected to the connecting plate 802, the left side and the right side of the clamping cover 5 are fixedly connected with a slot 807, and the end of the insertion rod 806 is movably connected to the slot 807.

[0026] In the above embodiment: the positioning clamp 801 is fixedly installed on the surface of the cooling branch pipe 3 by bolts, and the screw rod 803 is driven to rotate by rotating the knob 804. The screw rod 803 is lowered under the action of the thread, and the fixing plate 805 and the insertion rod 806 are pushed down, so that the end of the insertion rod 806 is inserted into the inner wall of the slot 807, and the clamping cover 5 can be limited. By rotating the knob 804 in the opposite direction, the limit on the clamping cover 5 can be released.

[0027] refer to Figure 1 As shown, the water supply branch pipe 402 is a metal bellows.

[0028] In the above embodiment, by providing the water supply branch pipe 402 made of a metal bellows material, when the clamping cover 5 is pulled upward, the flexible pipe 404 can be shortened to avoid folding damage to the pipeline.

[0029] refer to Figure 2 As shown, the outer fixing sleeve of the clamping cover 5 is provided with a sealing gasket 9, and the sealing gasket 9 is in contact with the surface of the cooling branch pipe 3.

[0030] In the above embodiment, the sealing gasket 9 is provided to seal the gap between the cooling branch pipe 3 and the clamping cover 5 to prevent steam from leaking from the gap, thereby ensuring the sealing of the pipeline.

[0031] Working principle: steam enters the pressure reducing valve 2 through the first connecting pipe 1, and the steam is reduced in pressure through the pressure reducing valve 2. The reduced-pressure steam flows into the cooling branch pipe 3. Under normal circumstances, the second control valve 11 controls only one cooling branch pipe 3 to be opened for steam circulation. Atomized spray water can be sent into the cooling branch pipe 3 through the cooling mechanism 4 to cool the steam. Impurities in the steam can be filtered through the filter screen 6. The steam after pressure reduction and temperature reduction is transported through the second connecting pipe 10. When it is necessary to replace the atomizing nozzle 405, the second control valve 11 of this passage is closed, and the second control valve 11 on the surface of another cooling branch pipe 3 is opened to divert the steam for transportation. The limit of the clamping cover 5 can be released by the second locking mechanism 8, and the atomizing nozzle 405 can be taken out of the cooling branch pipe 3 for quick replacement. At this time, the filter screen 6 is also pulled out of the cooling branch pipe 3, and the filter screen 6 can be cleaned. Then the limit of the first locking mechanism 7 is released, and the filter screen 6 can be disassembled and replaced.

[0032] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. High-efficiency and stable temperature and pressure reducing device, characterized by: The invention comprises a first connecting pipe (1) and a second connecting pipe (10) for connecting a steam pipeline, wherein the first connecting pipe (1) is flange-connected with a pressure reducing valve (2) for reducing the steam pressure at the end thereof, the right end of the pressure reducing valve (2) is flange-connected with two cooling branch pipes (3), and the right end of the cooling branch pipe (3) is flange-connected with the second connecting pipe (10), the surfaces of the two cooling branch pipes (3) are each provided with a second control valve (11), the tops of the two cooling branch pipes (3) are each movably clamped with a clamping cover (5), the surface of the clamping cover (5) is provided with a cooling mechanism (4) for cooling the steam, the surface of the clamping cover (5) is movably clamped with a filter screen (6), the surface of the clamping cover (5) is provided with a first locking mechanism (7) for limiting the position of the filter screen (6), and the surface of the cooling branch pipe (3) is provided with a second locking mechanism (8) for limiting the position of the clamping cover (5).

2. The high-efficiency and stable temperature and pressure reducing device according to claim 1 is characterized in that: The cooling mechanism (4) comprises a water inlet pipe (401), and one end of the water inlet pipe (401) is connected to a cooling water source, and the bottom end of the water inlet pipe (401) is fixedly connected to two water supply branch pipes (402), the surfaces of the two water supply branch pipes (402) are each provided with a first control valve (403), the middle end of the water supply branch pipe (402) is provided with a flexible pipe (404), and the surface of the water supply branch pipe (402) is provided with an atomizing nozzle (405), and the atomizing nozzle (405) is located inside the cooling branch pipe (3).

3. The high-efficiency and stable temperature and pressure reducing device according to claim 2 is characterized in that: The first locking mechanism (7) comprises a support plate (701), and the support plate (701) is fixedly connected to the top surface of the clamping cover (5); a C-shaped plate (702) is movably inserted into the left side surface of the support plate (701); a spring (703) is fixedly connected between the C-shaped plate (702) and the support plate (701); a pin (704) is fixedly connected to the left side surface of the C-shaped plate (702); a concave hole matching the pin (704) is provided on the surface of the filter screen plate (6), and the inner wall of the concave hole is fixedly connected to the end of the pin (704).

4. The high-efficiency and stable temperature and pressure reducing device according to claim 1 is characterized in that: The second locking mechanism (8) comprises a positioning clamp (801), and the positioning clamp (801) is fixed to the surface of the cooling branch pipe (3) by means of bolts; a connecting plate (802) is fixedly connected to the surface of the positioning clamp (801); a screw rod (803) is threadedly connected to the middle of the connecting plate (802); a knob (804) is fixedly connected to the top of the screw rod (803); a fixing plate (805) is rotatably connected to the bottom end of the screw rod (803); an insertion rod (806) is fixedly connected to the top surface of the fixing plate (805), and the insertion rod (806) is movably connected to the connecting plate (802); a slot (807) is fixedly connected to the left side and the right side of the clamping cover (5), and an end of the insertion rod (806) is movably connected to the slot (807).

5. The high-efficiency and stable temperature and pressure reducing device according to claim 2 is characterized in that: The water supply branch pipe (402) is a metal bellows pipe.

6. The high-efficiency and stable temperature and pressure reducing device according to claim 1 is characterized in that: The external fixing sleeve of the clamping cover (5) is provided with a sealing gasket (9), and the sealing gasket (9) is in contact with the surface of the cooling branch pipe (3).

Images