Steam quality detection device for pressure-bearing boiler

Abstract

The utility model discloses a steam quality detection device for a pressure-bearing boiler. The steam quality detection device comprises a sampling pipe; a gas-liquid separation device; a condensing device; a gas volume measuring device; a first measuring container; the second measuring container is communicated with a liquid outlet of the gas-liquid separation device; a first inlet of the first two-position four-way valve is communicated with the sampling pipe, a second inlet of the first two-position four-way valve is communicated with an outlet of the condensing device, a first outlet of the first two-position four-way valve is communicated with an inlet of the gas-liquid separation device, and a second outlet of the first two-position four-way valve is communicated with the first measuring container; a first inlet of the second two-position four-way valve is communicated with the sampling pipe, a second inlet of the second two-position four-way valve is communicated with a gas outlet of the gas-liquid separation device, a first outlet of the second two-position four-way valve is communicated with an inlet of the condensing device, and a second outlet of the second two-position four-way valve is communicated with the gas volume measuring device. The device has a simpler structure and realizes simpler and more convenient operation.

Description

Technical Field

[0001] The present application relates to the technical field of boiler detection, and in particular to a steam quality detection device for a pressure boiler. Background Art

[0002] Steam quality testing of pressure boilers is an important part of ensuring that the steam system operates effectively and meets specific application requirements. In industrial applications, especially in the pharmaceutical industry, steam quality testing is essential to ensure the sterilization quality of injections, large infusions, biopharmaceuticals, vaccines and other products.

[0003] Steam quality testing indicators include non-condensable gas content, superheat, dryness value, etc. At present, the equipment used for steam quality testing needs to be equipped with multiple condensing devices and multiple control valves, and some equipment is also equipped with multiple gas-liquid separation devices, making the current testing equipment more complicated in structure and operation process. Utility Model Content

[0004] The embodiment of the present application solves the technical problem in the prior art that both the structure and the operation process are relatively complicated by providing a pressure boiler steam quality detection device.

[0005] A pressure boiler steam quality detection device provided in an embodiment of the present application includes: a sampling tube; a gas-liquid separation device; a condensation device; a gas volume measuring device; a first measuring container; a second measuring container connected to the liquid outlet of the gas-liquid separation device; a first two-position four-way valve, wherein the first inlet of the first two-position four-way valve is connected to the sampling tube, the second inlet of the first two-position four-way valve is connected to the outlet of the condensation device, the first outlet of the first two-position four-way valve is connected to the inlet of the gas-liquid separation device, and the second outlet of the first two-position four-way valve is connected to the first measuring container; and a second two-position four-way valve, wherein the first inlet of the second two-position four-way valve is connected to the sampling tube, the second inlet of the second two-position four-way valve is connected to the gas outlet of the gas-liquid separation device, the first outlet of the second two-position four-way valve is connected to the inlet of the condensation device, and the second outlet of the second two-position four-way valve is connected to the gas volume measuring device wherein the first two-position four-way valve is configured such that: when the valve core of the first two-position four-way valve is in the first position, the first inlet of the first two-position four-way valve is communicated with the first outlet of the first two-position four-way valve, and the second inlet of the first two-position four-way valve is communicated with the second outlet of the first two-position four-way valve; when the valve core of the first two-position four-way valve is in the second position, the second inlet of the first two-position four-way valve is communicated with the first outlet of the first two-position four-way valve; the second two-position four-way valve is configured such that: when the valve core of the second two-position four-way valve is in the first position, the second inlet of the second two-position four-way valve is communicated with the first outlet of the second two-position four-way valve; when the valve core of the second two-position four-way valve is in the second position, the first inlet of the second two-position four-way valve is communicated with the first outlet of the second two-position four-way valve, and the second inlet of the second two-position four-way valve is communicated with the second outlet of the second two-position four-way valve.

[0006] In a possible implementation, the pressure boiler steam quality detection device further includes a host computer; the first two-position four-way valve and the second two-position four-way valve are both solenoid valves, and are both electrically connected to the host computer.

[0007] In a possible implementation, the pressure boiler steam quality detection device further includes a superheat detection device, and the superheat detection device is connected to the sampling pipe.

[0008] In one possible implementation, the gas volume measuring device includes a liquid storage bottle, an air inlet pipe, a liquid discharge pipe and a third measuring container; liquid is stored in the liquid storage bottle; one end of the air inlet pipe is connected to the second outlet of the second two-position four-way valve, and the other end of the air inlet pipe is inserted into the liquid storage bottle; one end of the liquid discharge pipe is inserted into the liquid storage bottle, and the other end of the liquid discharge pipe is connected to the third measuring container.

[0009] In a possible implementation, the pressure boiler steam quality detection device also includes a calorimeter, a third thermometer and a pressure gauge; the calorimeter is connected to the cooling water pipeline of the condensing device and is configured to absorb heat of the cooling water in the condensing device; the third thermometer is connected to the outlet of the condensing device, and the pressure gauge is connected to the inlet of the condensing device.

[0010] The technical solution provided in the embodiments of the present application has at least the following technical effects:

[0011] An embodiment of the present application provides a steam quality detection device for a pressure boiler. When the valve core of a first two-position four-way valve and the valve core of a second two-position four-way valve are both in the first position, the steam in the sampling tube flows into a gas-liquid separation device after passing through the first inlet and the first outlet of the first two-position four-way valve, the liquid in the steam flows out from the liquid outlet of the gas-liquid separation device and enters the second measuring container, the gas in the steam flows out from the gas outlet of the gas-liquid separation device and passes through the second inlet and the first outlet of the second two-position four-way valve, and enters the condensing device from the inlet of the condensing device, the condensing device condenses the gas into liquid, and the condensed liquid flows out from the outlet of the condensing device and passes through the second inlet and the first outlet of the first two-position four-way valve into the first measuring container. When the valve core of the first two-position four-way valve and the valve core of the second two-position four-way valve are both in the second position, the steam in the sampling tube flows into the condensing device after passing through the first inlet and the first outlet of the second two-position four-way valve, and the condensing device condenses the steam. The condensed liquid water and non-condensable gas flow out from the outlet of the condensing device, pass through the second inlet and the first outlet of the first two-position four-way valve, and enter from the inlet of the gas-liquid separation device. The liquid water flows out from the liquid outlet of the gas-liquid separation device and enters the second measuring container, and the non-condensable gas flows out from the gas outlet of the gas-liquid separation device and enters the gas volume measuring device. The pressure boiler steam quality detection device realizes the reuse of the gas-liquid separation device and the condensing device by using the first two-position four-way valve and the second two-position four-way valve. Only one gas-liquid separation device and one condensing device are required to detect the dryness value and non-condensable gas content of the steam, and the number of valves is also reduced. Compared with the existing steam detection equipment, the pressure boiler steam quality detection device has a simpler structure, and only the first two-position four-way valve and the second two-position four-way valve need to be operated, which realizes a simpler operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments of the present application or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1A schematic diagram of the structure of a pressure boiler steam quality detection device provided in an embodiment of the present application;

[0014] Figure 2 A schematic diagram of a pressure boiler steam quality detection device provided in an embodiment of the present application when the valve core of the first two-position four-way valve and the valve core of the second two-position four-way valve are both in the first position;

[0015] Figure 3 A schematic diagram of a steam quality detection device for a pressure boiler when the valve core of a first two-position four-way valve and the valve core of a second two-position four-way valve are both located in the second position, provided in an embodiment of the present application.

[0016] Figure markings: 10 - sampling tube; 20 - gas-liquid separation device; 30 - condensation device; 40 - gas volume measuring device; 41 - liquid storage bottle; 42 - air inlet pipe; 43 - liquid discharge pipe; 44 - third measuring container; 50 - first measuring container; 60 - second measuring container, 70 - first two-position four-way valve; 80 - second two-position four-way valve; 90 - host computer; 100 - overheat detection device; 110 - calorimeter; 111 - first thermometer; 112 - second thermometer; 113 - flow integrator; 120 - third thermometer; 130 - pressure gauge. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0018] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0019] Steam quality testing of pressure boilers is an important part of ensuring the effective operation of steam systems and meeting specific application requirements. In industrial applications, especially in the pharmaceutical industry, steam quality testing is essential to ensure the sterilization quality of injections, large-volume infusions, biopharmaceuticals, vaccines and other products. Steam quality testing indicators include non-condensable gas content, superheat, dryness value, etc. At present, the equipment used for steam quality testing needs to be equipped with multiple condensing devices and multiple control valves. Some equipment is also equipped with multiple gas-liquid separation devices, making the current testing equipment more complicated in structure and operation process.

[0020] An embodiment of the present application provides a pressure boiler steam quality detection device. Through a first two-position four-way valve 70 and a second two-position four-way valve 80, the gas-liquid separation device 20 and the condensation device 30 are reused. Only one gas-liquid separation device 20 and one condensation device 30 need to be set up to detect the dryness value and non-condensable gas content of the steam, and the number of valves is also reduced. Compared with the existing steam detection equipment, the pressure boiler steam quality detection device has a simpler structure. Only the first two-position four-way valve 70 and the second two-position four-way valve 80 need to be operated, thereby achieving simpler operation.

[0021] like Figure 1 As shown, the pressure boiler steam quality detection device provided in the embodiment of the present application includes a sampling tube 10, a gas-liquid separation device 20, a condensation device 30, a gas volume measuring device 40, a first measuring container 50, a second measuring container 60, a first two-position four-way valve 70 and a second two-position four-way valve 80.

[0022] The second measuring container 60 is connected to the liquid outlet of the gas-liquid separation device 20, so that the liquid after passing through the gas-liquid separation device 20 flows out from the liquid outlet and flows into the second measuring container 60, and the second measuring container 60 can measure the volume of the outflowing liquid.

[0023] The first inlet of the first two-position four-way valve 70 is connected to the sampling tube 10, the second inlet of the first two-position four-way valve 70 is connected to the outlet of the condensing device 30, the first outlet of the first two-position four-way valve 70 is connected to the inlet of the gas-liquid separation device 20, and the second outlet of the first two-position four-way valve 70 is connected to the first measuring container 50.

[0024] The first two-position four-way valve 70 has two states, namely, a state when the valve core is in the first position and a state when the valve core is in the second position. Figure 2 As shown, when the valve core of the first two-position four-way valve 70 is in the first position, the first inlet of the first two-position four-way valve 70 is connected to the first outlet of the first two-position four-way valve 70, and the second inlet of the first two-position four-way valve 70 is connected to the second outlet of the first two-position four-way valve 70. Figure 3As shown, when the valve core of the first two-position four-way valve 70 is located at the second position, the second inlet of the first two-position four-way valve 70 is communicated with the first outlet of the first two-position four-way valve 70 .

[0025] The first inlet of the second two-position four-way valve 80 is connected to the sampling tube 10, the second inlet of the second two-position four-way valve 80 is connected to the gas outlet of the gas-liquid separation device 20, the first outlet of the second two-position four-way valve 80 is connected to the inlet of the condensation device 30, and the second outlet of the second two-position four-way valve 80 is connected to the gas volume measuring device 40.

[0026] The second two-position four-way valve 80 has two states, namely, a state when the valve core is in the first position and a state when the valve core is in the second position. Figure 2 As shown, when the valve core of the second two-position four-way valve 80 is located at the first position, the second inlet of the second two-position four-way valve 80 is connected to the first outlet of the second two-position four-way valve 80. Figure 3 As shown, when the valve core of the second two-position four-way valve 80 is in the second position, the first inlet of the second two-position four-way valve 80 is connected to the first outlet of the second two-position four-way valve 80, and the second inlet of the second two-position four-way valve 80 is connected to the second outlet of the second two-position four-way valve.

[0027] When the dryness value of steam needs to be detected, the valve core of the first two-position four-way valve 70 and the valve core of the second two-position four-way valve 80 are both set to the first position, and the steam in the sampling tube 10 flows into the gas-liquid separation device 20 after passing through the first inlet and the first outlet of the first two-position four-way valve 70, and the liquid in the steam flows out from the liquid outlet of the gas-liquid separation device 20 and enters the second measuring container 60, and the gas in the steam flows out from the gas outlet of the gas-liquid separation device 20 and passes through the second inlet and the first outlet of the second two-position four-way valve 80, and enters the condensing device 30 from the inlet of the condensing device 30, and the condensing device 30 condenses the gas into liquid, and the condensed liquid flows out from the outlet of the condensing device 30 and passes through the second inlet and the first outlet of the first two-position four-way valve 70 to enter the first measuring container 50. The inspector can determine the dryness value of the steam through the volume or mass of the liquid in the first measuring container 50 and the second measuring container 60. For example, if the mass of the liquid in the first measuring container 50 is 90g and the mass of the liquid in the second measuring container 60 is 10g, then the dryness value of the steam is 0.9.

[0028] When it is necessary to detect the non-condensable gas content of the steam, when the valve core of the first two-position four-way valve 70 and the valve core of the second two-position four-way valve 80 are both set to the second position, the steam in the sampling tube 10 flows into the condensing device 30 after passing through the first inlet and the first outlet of the second two-position four-way valve 80, and the condensing device 30 condenses the steam, and the condensed liquid water and non-condensable gas flow out from the outlet of the condensing device 30, pass through the second inlet and the first outlet of the first two-position four-way valve 70, and enter from the inlet of the gas-liquid separation device 20, and the liquid water flows out from the liquid outlet of the gas-liquid separation device 20 into the second measuring container 60, and the non-condensable gas flows out from the gas outlet of the gas-liquid separation device 20 and enters the gas volume measuring device 40. The tester can obtain the volume of the non-condensable gas in the steam through the gas volume measuring device 40, and the volume or mass of the condensed water after the steam condensation can be obtained through the second measuring container 60, and then the content of the non-condensable gas in each 100mL of condensed water can be determined.

[0029] Continue to refer to Figure 1 In one embodiment of the present application, the pressure boiler steam quality detection device further includes a host computer 90; the first two-position four-way valve 70 and the second two-position four-way valve 80 are both solenoid valves, and are both electrically connected to the host computer 90. The detection personnel can control the first two-position four-way valve 70 and the second two-position four-way valve 80 through the host computer 90, so that the first two-position four-way valve 70 and the second two-position four-way valve 80 are switched between two states.

[0030] In other embodiments of the present application, the first two-position four-way valve 70 and the second two-position four-way valve 80 in the pressure boiler steam quality detection device are both manual valves. When switching states is required, the detection personnel manually operate the first two-position four-way valve 70 and the second two-position four-way valve 80.

[0031] like Figures 1 to 3 As shown, in one embodiment of the present application, the pressure boiler steam quality detection device further includes a superheat detection device 100 , and the superheat detection device 100 is connected to the sampling pipe 10 .

[0032] When the pressure boiler steam quality detection device is working, the sampling tube 10 collects steam from the pressure boiler, and the steam in the sampling tube 10 enters the superheat detection device 100, and the superheat detection device 100 detects the superheat of the steam.

[0033] like Figures 1 to 3 As shown, the gas volume measuring device 40 includes a liquid storage bottle 41, an air inlet pipe 42, a liquid discharge pipe 43 and a third measuring container 44. Liquid is stored in the liquid storage bottle 41. One end of the air inlet pipe 42 is connected to the second outlet of the second two-position four-way valve 80, and the other end of the air inlet pipe 42 is inserted into the liquid storage bottle 41. One end of the liquid discharge pipe 43 is inserted into the liquid storage bottle 41, and the other end of the liquid discharge pipe 43 is connected to the third measuring container 44.

[0034] When the valve core of the first two-position four-way valve 70 and the valve core of the second two-position four-way valve 80 are both in the second position, the gas flowing out of the second outlet of the second two-position four-way valve 80 enters the liquid storage bottle 41 through the air inlet pipe 42, and the liquid in the liquid storage bottle 41 enters the third measuring container 44 through the liquid discharge pipe 43. The volume of the non-condensable gas is determined by the liquid discharged from the liquid storage bottle 41 measured by the third measuring container 44. The tester can then determine the content of the non-condensable gas in the steam based on the measurement result in the second measuring container 60.

[0035] Reference Figure 1 As shown, the pressure boiler steam quality detection device further includes a calorimeter 110, a third thermometer 120 and a pressure gauge 130. The calorimeter 110 is connected to the cooling water pipeline of the condensing device 30 and is configured to detect the amount of heat absorbed by the cooling water in the condensing device 30. The third thermometer 120 is connected to the outlet of the condensing device 30, and the pressure gauge 130 is connected to the inlet of the condensing device 30.

[0036] The calorimeter 110 includes a first thermometer 111 and a flow integrator 113 disposed on the cooling water inlet pipe of the condensing device 30, and a second thermometer 112 disposed on the cooling water outlet pipe of the condensing device 30; the first thermometer 111 and the second thermometer 112 are both electrically connected to the flow integrator 113. The calorimeter 110 calculates the amount of heat absorbed by the cooling water in the condensing device 30 through the cooling water inlet temperature detected by the first thermometer 111, the cooling water outlet temperature detected by the second thermometer 112, the cooling water consumption measured by the flow integrator 113, and the pressure of the saturated steam to be measured.

[0037] When the valve core of the first two-position four-way valve 70 and the valve core of the second two-position four-way valve 80 are both set in the second position, the pressure boiler steam quality detection device can also calculate the steam dryness value through the calorimeter 110, the third thermometer 120 and the pressure gauge 130. The specific calculation formula is as follows:

[0038]

[0039] In the formula, χ represents the dryness value of the saturated steam to be measured, Q represents the heat absorbed by the cooling water in the condensing device, m represents the mass of the condensed water, and h w (p) represents the specific enthalpy of saturated water under pressure p, p represents the saturated steam pressure of the saturated steam to be measured, h 1 (T 1 ) represents the temperature T 1 Specific enthalpy of condensed water under 1 Indicates the condensation water temperature, h v (p) represents the specific enthalpy of saturated steam at pressure p.

[0040] The tester can take the average of the dryness value calculated by the test device through the calorimeter 110, the third thermometer 120 and the pressure gauge 130, and the dryness value calculated when the valve core of the first two-position four-way valve 70 and the valve core of the second two-position four-way valve 80 are both set in the first position as the final dryness value.

[0041] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0042] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A pressure boiler steam quality detection device, characterized in that: include: Sampling tube; Gas-liquid separation device; Condensing unit; Gas volume measuring devices; a first measuring container; a second measuring container, connected to the liquid outlet of the gas-liquid separation device; a first two-position four-way valve, wherein a first inlet of the first two-position four-way valve is communicated with the sampling tube, a second inlet of the first two-position four-way valve is communicated with an outlet of the condensing device, a first outlet of the first two-position four-way valve is communicated with an inlet of the gas-liquid separation device, and a second outlet of the first two-position four-way valve is communicated with the first measuring container; as well as a second two-position four-way valve, wherein a first inlet of the second two-position four-way valve is communicated with the sampling tube, a second inlet of the second two-position four-way valve is communicated with a gas outlet of the gas-liquid separation device, a first outlet of the second two-position four-way valve is communicated with an inlet of the condensing device, and a second outlet of the second two-position four-way valve is communicated with the gas volume measuring device; Wherein, the first two-position four-way valve is configured as follows: when the valve core of the first two-position four-way valve is located in the first position, the first inlet of the first two-position four-way valve is communicated with the first outlet of the first two-position four-way valve, and the second inlet of the first two-position four-way valve is communicated with the second outlet of the first two-position four-way valve; when the valve core of the first two-position four-way valve is located in the second position, the second inlet of the first two-position four-way valve is communicated with the first outlet of the first two-position four-way valve; The second two-position four-way valve is configured as follows: when the valve core of the second two-position four-way valve is in the first position, the second inlet of the second two-position four-way valve is connected to the first outlet of the second two-position four-way valve; when the valve core of the second two-position four-way valve is in the second position, the first inlet of the second two-position four-way valve is connected to the first outlet of the second two-position four-way valve, and the second inlet of the second two-position four-way valve is connected to the second outlet of the second two-position four-way valve.

2. The pressure boiler steam quality detection device according to claim 1, characterized in that: It also includes the host computer; The first two-position four-way valve and the second two-position four-way valve are both solenoid valves, and are both electrically connected to the host computer.

3. The pressure boiler steam quality detection device according to claim 1, characterized in that: It also includes an overheat detection device, which is connected to the sampling tube.

4. The pressure boiler steam quality detection device according to claim 1, characterized in that: The gas volume measuring device comprises a liquid storage bottle, an air inlet pipe, a liquid discharge pipe and a third measuring container; The liquid storage bottle stores liquid; One end of the air inlet pipe is connected to the second outlet of the second two-position four-way valve, and the other end of the air inlet pipe is inserted into the liquid storage bottle; One end of the liquid discharge tube is inserted into the liquid storage bottle, and the other end of the liquid discharge tube is communicated with the third measuring container.

5. The pressure boiler steam quality detection device according to claim 1, characterized in that: Also included is a calorimeter, a third thermometer, and a pressure gauge; The calorimeter is in communication with a cooling water pipeline of the condensing device and is configured to cool the heat absorbed by the water in the condensing device; The third thermometer is connected to the outlet of the condensing device, and the pressure gauge is connected to the inlet of the condensing device.

Images