Combined valve type temperature and pressure reducing device

Abstract

The utility model relates to the technical field of temperature and pressure reducing devices, in particular to a combined valve type temperature and pressure reducing device, which is characterized in that steam is conveyed through a steam pipeline, a first pressure sensor is used for detecting pressure of entering steam, and a second temperature sensor is used for detecting temperature of output steam; meanwhile, the filtering assembly filters impurities in water in the water supply assembly, and the service life is prolonged; comprising a steam pipeline, a temperature and pressure reducing valve, a first pressure sensor, a first temperature sensor, a second pressure sensor and a second temperature sensor, the temperature and pressure reducing valve is arranged on the steam pipeline, and the first pressure sensor and the first temperature sensor are installed on the steam pipeline on the left side of the temperature and pressure reducing valve; the second pressure sensor and the second temperature sensor are installed on the steam pipeline on the right side of the temperature and pressure reducing valve, the input end of the water supply assembly is communicated with the bottom end of the temperature and pressure reducing valve, and the water supply assembly is provided with the filtering assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature reduction and pressure reduction devices, in particular to a combined valve type temperature reduction and pressure reduction device. Background Art

[0002] The desuperheater is used to reduce high-temperature and high-pressure steam to low-pressure and low-temperature steam (which can be superheated steam) that can be used by customers. When the desuperheater is reducing the temperature, it uses the mixture of cooling water and steam to achieve the cooling. When the steam flow rate is small, the supply flow rate of the cooling water must also be changed.

[0003] In the prior art, a patent document with a publication number of CN214744983U discloses a combined valve type temperature reduction and pressure reduction device, comprising a steam pipe, a temperature reduction and pressure reduction valve and a thermal regulating device, characterized in that: a temperature reduction and pressure reduction valve is provided on the steam pipe, a linear electric actuator is provided on the temperature reduction and pressure reduction valve, a spring safety valve, a field pressure gauge and a field temperature meter are provided on the steam pipe from left to right in sequence, an outlet pressure sensor and an outlet temperature sensor are provided on the steam pipe near the steam outlet, a water supply pipe is provided on the temperature reduction and pressure reduction valve, a check valve, a water supply regulating valve, a temperature sensor and a stop valve are provided on the water supply regulating valve in sequence from left to right, and a first linear electric actuator is provided on the water supply regulating valve.

[0004] During use, it was found that when the water supply pipeline is in water supply operation, if there are impurities in the water, the steam will carry the impurities together and cause internal contamination of the equipment. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a combined valve type temperature and pressure reduction device with a prolonged service life.

[0006] The utility model discloses a combined valve type temperature reduction and pressure reduction device, comprising a steam pipeline, a temperature reduction and pressure reduction valve, a No. 1 pressure sensor, a No. 1 temperature sensor, a No. 2 pressure sensor and a No. 2 temperature sensor, wherein the temperature reduction and pressure reduction valve is arranged on the steam pipeline, the No. 1 pressure sensor and the No. 1 temperature sensor are installed on the steam pipeline at the left side of the temperature reduction and pressure reduction valve, and the No. 2 pressure sensor and the No. 2 temperature sensor are installed on the steam pipeline at the right side of the temperature reduction and pressure reduction valve, and further comprising a water supply component and a filter component, wherein the input end of the water supply component is connected with the bottom end of the temperature reduction and pressure reduction valve, and the filter component is arranged on the water supply component; steam is transported through the steam pipeline, the No. 1 pressure sensor performs pressure detection on the incoming steam, the No. 1 temperature sensor performs temperature detection on the incoming steam, after the water supply component performs water supply operation on the steam in the steam pipeline through the temperature reduction and pressure reduction valve, the No. 2 pressure sensor performs pressure detection on the output steam, the No. 2 temperature sensor performs temperature detection on the output steam, and at the same time the filter component filters impurities from the water in the water supply component to improve the service life.

[0007] Preferably, the water supply component includes an upper water pipe, a regulating valve, a cooling water pump and a check valve. The output end of the upper water pipe is connected to the bottom end of the cooling and pressure reducing valve. The upper water pipe is respectively provided with a regulating valve and a check valve. A filter component is provided between the input end of the upper water pipe and the output end of the cooling water pump. The cooling water pump is started to allow water to pass through the upper water pipe and the cooling and pressure reducing valve to be supplied to the steam pipe. The regulating valve adjusts the water supply flow rate. The cooling water pump prevents the water supply from backflowing. At the same time, the filter component filters impurities in the water supply.

[0008] Preferably, the filter assembly includes a No. 1 tee, a No. 2 tee, a water pipe, a water valve, a filter box, bolts and a sealing cover. The output end of the cooling water pump is connected to the input end of the No. 1 tee, the output end of the No. 2 tee is connected to the input end of the upper water pipe, the input ends of the two groups of water pipes are respectively connected to the two groups of output ends of the No. 1 tee, and the output ends of the two groups of water pipes are respectively connected to the two groups of input ends of the No. 2 tee. Each group of water pipes is respectively provided with a group of filter boxes and two groups of water valves. The filter box is between the two groups of water valves. A filter screen is provided inside the filter box. The sealing cover is screwed in The plug seals the top of the filter box; when in use, the two sets of water valves on the first set of water pipes are opened and the two sets of water valves on the second set of water pipes are closed, and the cooling water pump is started, so that water is transported through the first set of water pipes and passes through the filter screen in the first set of filter boxes to filter impurities. When the filter screen inside the first set of filter boxes needs to be cleaned, the two sets of water valves on the second set of water pipes are opened and the two sets of water valves on the first set of water pipes are closed, so that the switching of the two sets of filter screens can be completed, and then the sealing cover on the first set of filter boxes can be opened to clean the filter screen.

[0009] Preferably, a safety valve is further included. The steam pipe is provided with a safety valve. When the steam pressure inside the steam pipe is too high, the steam inside the steam pipe is automatically depressurized through the safety valve to improve safety.

[0010] Preferably, it also includes handles, and each group of sealing covers is respectively provided with a group of handles at the top; when the sealing covers on the filter box need to be opened, the staff moves the sealing covers through the handles, thereby improving convenience.

[0011] Preferably, it also includes a pressure gauge, and the steam pipeline is provided with a pressure gauge; the pressure gauge performs on-site pressure detection on the output steam, which is convenient for on-site personnel to observe.

[0012] Preferably, it also includes a temperature meter, and the steam pipeline is provided with a temperature meter; the pressure gauge performs on-site temperature detection on the output steam, which is convenient for on-site personnel to observe.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: steam is transported through a steam pipe, a No. 1 pressure sensor detects the pressure of the incoming steam, a No. 1 temperature sensor detects the temperature of the incoming steam, and after the water supply component supplies water to the steam in the steam pipe through a temperature reducing and pressure reducing valve, a No. 2 pressure sensor detects the pressure of the output steam, a No. 2 temperature sensor detects the temperature of the output steam, and at the same time, the filter component filters impurities in the water in the water supply component to increase the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;

[0015] Figure 2 yes Figure 1 A partial enlarged structural diagram of the middle part;

[0016] Figure 3 It is an enlarged structural diagram of the desuperheating water pump and the No. 2 tee pipe and other structures;

[0017] Figure 4 yes Figure 3 A schematic diagram of the partially enlarged structure of the middle B part;

[0018] Figure 5 It is an enlarged structural diagram of structures such as the filter box and the sealing cover.

[0019] Markings in the attached figure: 1. Steam pipe; 2. Cooling and pressure reducing valve; 3. Pressure sensor No. 1; 4. Temperature sensor No. 1; 5. Pressure sensor No. 2; 6. Temperature sensor No. 2; 7. Water supply pipe; 8. Regulating valve; 9. Cooling water pump; 10. Check valve; 11. Tee pipe No. 1; 12. Tee pipe No. 2; 13. Water pipe; 14. Water valve; 15. Filter box; 16. Bolts; 17. Sealing cover; 18. Safety valve; 19. Handle; 20. Pressure gauge; 21. Temperature gauge. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Example

[0021] like Figure 1 and Figure 2As shown, a combined valve type temperature reduction and pressure reduction device of the utility model comprises a steam pipeline 1, a temperature reduction and pressure reduction valve 2, a No. 1 pressure sensor 3, a No. 1 temperature sensor 4, a No. 2 pressure sensor 5 and a No. 2 temperature sensor 6, the steam pipeline 1 is provided with the temperature reduction and pressure reduction valve 2, the No. 1 pressure sensor 3 and the No. 1 temperature sensor 4 are installed on the steam pipeline 1 on the left side of the temperature reduction and pressure reduction valve 2, the No. 2 pressure sensor 5 and the No. 2 temperature sensor 6 are installed on the steam pipeline 1 on the right side of the temperature reduction and pressure reduction valve 2, and also comprises a water supply component and a filter component, the input end of the water supply component is connected with the bottom end of the temperature reduction and pressure reduction valve 2, and the water supply component is provided with a filter component;

[0022] like Figures 1 to 5 As shown, the water supply assembly includes an upper water pipe 7, a regulating valve 8, a cooling water pump 9 and a check valve 10. The output end of the upper water pipe 7 is connected to the bottom end of the cooling and pressure reducing valve 2. The upper water pipe 7 is respectively provided with a regulating valve 8 and a check valve 10. A filter assembly is provided between the input end of the upper water pipe 7 and the output end of the cooling water pump 9.

[0023] In this embodiment, steam is transported through the steam pipe 1, the No. 1 pressure sensor 3 detects the pressure of the incoming steam, the No. 1 temperature sensor 4 detects the temperature of the incoming steam, and the cooling water pump 9 is started to supply water to the steam pipe 1 through the water supply pipe 7 and the cooling and pressure reducing valve 2. The regulating valve 8 adjusts the water supply flow rate, the cooling water pump 9 prevents the water supply from backflow, and at the same time the filter component filters impurities in the water supply, the No. 2 pressure sensor 5 detects the pressure of the output steam, and the No. 2 temperature sensor 6 detects the temperature of the output steam. Example

[0024] like Figure 1 and Figure 2 As shown, a combined valve type temperature reduction and pressure reduction device of the utility model comprises a steam pipeline 1, a temperature reduction and pressure reduction valve 2, a No. 1 pressure sensor 3, a No. 1 temperature sensor 4, a No. 2 pressure sensor 5 and a No. 2 temperature sensor 6, the steam pipeline 1 is provided with the temperature reduction and pressure reduction valve 2, the No. 1 pressure sensor 3 and the No. 1 temperature sensor 4 are installed on the steam pipeline 1 on the left side of the temperature reduction and pressure reduction valve 2, the No. 2 pressure sensor 5 and the No. 2 temperature sensor 6 are installed on the steam pipeline 1 on the right side of the temperature reduction and pressure reduction valve 2, and also comprises a water supply component and a filter component, the input end of the water supply component is connected with the bottom end of the temperature reduction and pressure reduction valve 2, and the water supply component is provided with a filter component;

[0025] like Figures 1 to 5 As shown, the water supply assembly includes an upper water pipe 7, a regulating valve 8, a cooling water pump 9 and a check valve 10. The output end of the upper water pipe 7 is connected to the bottom end of the cooling and pressure reducing valve 2. The upper water pipe 7 is provided with a regulating valve 8 and a check valve 10 respectively. A filter assembly is provided between the input end of the upper water pipe 7 and the output end of the cooling water pump 9.

[0026] like Figures 1 to 5 As shown, the filter assembly includes a No. 1 tee pipe 11, a No. 2 tee pipe 12, a water pipe 13, a water valve 14, a filter box 15, bolts 16 and a sealing cover 17. The output end of the cooling water pump 9 is connected to the input end of the No. 1 tee pipe 11, the output end of the No. 2 tee pipe 12 is connected to the input end of the upper water pipe 7, the input ends of the two groups of water pipes 13 are respectively connected to the two groups of output ends of the No. 1 tee pipe 11, and the output ends of the two groups of water pipes 13 are respectively connected to the two groups of input ends of the No. 2 tee pipe 12. A group of filter boxes 15 and two groups of water valves 14 are respectively arranged on each group of water pipes 13. The filter box 15 is between the two groups of water valves 14. A filter screen is arranged inside the filter box 15. The sealing cover 17 seals the top of the filter box 15 through the bolts 16.

[0027] It also includes a safety valve 18, a handle 19, a pressure gauge 20 and a thermometer 21. The steam pipe 1 is provided with a safety valve 18, and each group of sealing covers 17 is provided with a group of handles 19 at the top. The steam pipe 1 is provided with a pressure gauge 20, and the steam pipe 1 is provided with a thermometer 21.

[0028] In this embodiment, steam is transported through the steam pipe 1, the No. 1 pressure sensor 3 detects the pressure of the incoming steam, the No. 1 temperature sensor 4 detects the temperature of the incoming steam, the cooling water pump 9 is started, so that water is supplied to the steam pipe 1 through the upper water pipe 7 and the cooling and pressure reducing valve 2, the regulating valve 8 adjusts the water supply flow, the cooling water pump 9 prevents the water supply from returning, the two groups of water delivery valves 14 on the first group of water delivery pipes 13 are opened and the two groups of water delivery valves 14 on the second group of water delivery pipes 13 are closed, the cooling water pump 9 is started, so that water is transported through the first group of water delivery pipes 13 and filtered for impurities through the filter screen in the first group of filter boxes 15, when the first group of filter boxes 15 need to be filtered, the cooling water pump 9 is started, and the cooling water pump 9 is started, so that water is transported through the first group of water delivery pipes 13 and filtered for impurities through the filter screen in the first group of filter boxes 15. When cleaning the filter screen inside the group filter box 15, open the two groups of water valves 14 on the second group of water pipes 13 and close the two groups of water valves 14 on the first group of water pipes 13 to complete the switching of the two groups of filter screens. Then open the sealing cover 17 on the first group of filter box 15 to clean the filter screen. The No. 2 pressure sensor 5 detects the pressure of the output steam, and the No. 2 temperature sensor 6 detects the temperature of the output steam. When the steam pressure inside the steam pipe 1 is too high, the steam inside the steam pipe 1 is automatically depressurized through the safety valve 18, and the pressure gauge 20 performs on-site pressure detection on the output steam, and the pressure gauge 20 performs on-site temperature detection on the output steam.

[0029] The temperature reducing and pressure reducing valve 2, No. 1 pressure sensor 3, No. 1 temperature sensor 4, No. 2 pressure sensor 5, No. 2 temperature sensor 6 and temperature reducing water pump 9 of a combined valve type temperature reducing and pressure reducing device of the utility model are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for technical personnel in this field to make creative labor.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A combined valve type temperature reduction and pressure reduction device, comprising a steam pipeline (1), a temperature reduction and pressure reduction valve (2), a first pressure sensor (3), a first temperature sensor (4), a second pressure sensor (5) and a second temperature sensor (6), wherein the temperature reduction and pressure reduction valve (2) is provided on the steam pipeline (1), the first pressure sensor (3) and the first temperature sensor (4) are installed on the steam pipeline (1) on the left side of the temperature reduction and pressure reduction valve (2), and the second pressure sensor (5) and the second temperature sensor (6) are installed on the steam pipeline (1) on the right side of the temperature reduction and pressure reduction valve (2), characterized in that: It also includes a water supply component and a filter component. The input end of the water supply component is connected to the bottom end of the temperature reduction and pressure reduction valve (2), and the filter component is arranged on the water supply component.

2. A combined valve type temperature and pressure reduction device as claimed in claim 1, characterized in that: The water supply assembly comprises a water supply pipe (7), a regulating valve (8), a temperature reducing water pump (9) and a check valve (10); the output end of the water supply pipe (7) is connected to the bottom end of the temperature reducing and pressure reducing valve (2); the regulating valve (8) and the check valve (10) are respectively arranged on the water supply pipe (7); and a filter assembly is arranged between the input end of the water supply pipe (7) and the output end of the temperature reducing water pump (9).

3. A combined valve type temperature and pressure reduction device as claimed in claim 2, characterized in that: The filter assembly comprises a No. 1 three-way pipe (11), a No. 2 three-way pipe (12), a water delivery pipe (13), a water delivery valve (14), a filter box (15), bolts (16) and a sealing cover (17); the output end of the cooling water pump (9) is connected to the input end of the No. 1 three-way pipe (11); the output end of the No. 2 three-way pipe (12) is connected to the input end of the water supply pipe (7); the input ends of the two groups of water delivery pipes (13) are respectively connected to the two groups of output ends of the No. 1 three-way pipe (11); the output ends of the two groups of water delivery pipes (13) are respectively connected to the two groups of input ends of the No. 2 three-way pipe (12); each group of water delivery pipes (13) is respectively provided with a group of filter boxes (15) and two groups of water delivery valves (14); the filter box (15) is between the two groups of water delivery valves (14); a filter screen is provided inside the filter box (15); and the sealing cover (17) seals the top of the filter box (15) through the bolts (16).

4. A combined valve type temperature and pressure reduction device as claimed in claim 1, characterized in that: It also comprises a safety valve (18), and the steam pipeline (1) is provided with a safety valve (18).

5. A combined valve type temperature and pressure reduction device as claimed in claim 3, characterized in that: It also includes handles (19), with each set of sealing covers (17) having a set of handles (19) disposed at the top end thereof.

6. A combined valve type temperature and pressure reduction device as claimed in claim 1, characterized in that: It also comprises a pressure gauge (20), and the steam pipeline (1) is provided with a pressure gauge (20).

7. A combined valve type temperature and pressure reduction device as claimed in claim 1 or 6, characterized in that: It also includes a temperature gauge (21), and the temperature gauge (21) is arranged on the steam pipeline (1).

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