diff --git a/src/db/db_service.cpp b/src/db/db_service.cpp
index 02f16a1..98b7b79 100644
--- a/src/db/db_service.cpp
+++ b/src/db/db_service.cpp
@@ -87,7 +87,7 @@ static Setting config_settings_table[] = {
     SETTING_ITEM(4, "continued_satur", /*******/ "消毒继续过氧化氢相对饱和度", /*****/ 0, 100, 60),   //
     SETTING_ITEM(5, "max_humidity", /**********/ "允许消毒最大湿度", /*************/ 0, 100, 90),     //
     SETTING_ITEM(6, "drainage_pump_speed", /***/ "排液蠕动泵最大转速", /************/ 0, 400, 400),   //
-    SETTING_ITEM(7, "injection_pump_speed", /**/ "喷射蠕动泵转速", /***************/ 0, 30, 30),      //
+    SETTING_ITEM(7, "injection_pump_speed", /**/ "喷射蠕动泵转速", /***************/ 0, 30, 15),      //
     SETTING_ITEM(8, "pre_heat_time_s", /*******/ "预热时间", /*******************/ 0, 1200, 120),     //
     SETTING_ITEM(9, "stoped_humi", /***********/ "消毒停止相对湿度", /************/ 0, 100, 85),      //
     SETTING_ITEM(10, "continued_humi", /*******/ "消毒继续相对湿度", /************/ 0, 100, 60),      //